記述言語：英語   掲載種別：研究論文（学術雑誌）  

BACKGROUND AND AIM: Treatment response to ursodeoxycholic acid may predict the prognosis of patients with primary biliary cholangitis (PBC). Recent studies have suggested the benefits of using machine learning (ML) to forecast complex medical predictions. We aimed to predict treatment response in patients with PBC using ML and pretreatment data. METHODS: We conducted a single-center retrospective study and collected data from 194 patients with PBC who were followed up for at least 12 months after treatment initiation. Patient data were analyzed with five ML models, namely random forest, extreme gradient boosting (XGB), decision tree, naïve Bayes, or logistic regression, to predict treatment response using the Paris II criteria. The established models were assessed using an out-of-sample validation. The area under the curve (AUC) was used to evaluate the efficacy of each algorithm. Overall survival and liver-related deaths were analyzed using Kaplan-Meier analysis. RESULTS: Compared to logistic regression (AUC = 0.595, P = 0.0219, 0.031 models), ML analyses showed significantly high AUC in the random forest (AUC = 0.84) and XGB (AUC = 0.83) models; however, the AUC was not significantly high for decision tree (AUC = 0.633) or naïve Bayes (AUC = 0.584) models. Kaplan-Meier analysis showed significantly improved prognoses in patients predicted to achieve the Paris II criteria by XGB (log-rank = 0.005 and 0.007). CONCLUSION: ML algorithms could improve treatment response prediction using pretreatment data, which could lead to better prognoses. In addition, the ML model using XGB could predict the prognosis of patients before treatment initiation.

DOI： 10.1002/jgh3.12915

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記述言語：英語   出版者・発行元：日本消化器病学会-甲信越支部  

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

Acute pancreatitis is an uncommon occurrence in acute liver failure. Furthermore, such cases are rarely complicated by parenchymal hemorrhages. Herein, we report the case of a 69-year-old male patient with multiple pancreatic parenchymal hemorrhages concomitant with acute liver failure. The patient underwent conservative treatment for acute liver failure caused by hepatitis B virus infection. Plain computed tomography on the 30th day revealed two high-density mass lesions in the pancreatic body and tail, which were suspected to be multiple pancreatic parenchymal hemorrhages. Despite restarting gabexate mesylate, the patient died of multiple organ failure on the 49th day. The clinical information of the present case and our literature review of 61 similar cases in 43 case reports identified via a systematic keyword search of the PubMed database, which described acute pancreatitis concomitant with acute hepatitis and acute liver failure, will aid physicians in the diagnosis and treatment of this rare condition.

DOI： 10.1007/s12328-022-01738-x

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

This research developed an easy-to-use, reproducible pancreatic cancer animal model utilizing pancreas-targeted hydrodynamic gene delivery to deliver human pancreatic cancer-related genes to the pancreas of wild-type rats. KRAS G12D -induced pancreatic intraepithelial neoplasia lesions showed malignant transformation in the main pancreatic duct at 4 weeks and developed acinar-to-ductal metaplasia, which led to pancreatic ductal adenocarcinoma within 5 weeks, and the gene combination of KRAS G12D and YAP enhanced these effects. The repeat hydrodynamic gene delivery of KRAS G12D  + YAP combination at 4 weeks showed acinar-to-ductal metaplasia in all rats and pancreatic ductal adenocarcinoma in 80% of rats 1 week later. Metastatic tumors in the liver, lymph nodes, and subcutaneous lesions and nervous invasion were confirmed. KRAS G12D and YAP combined transfer contributes to the E- to N-cadherin switch in pancreatic ductal adenocarcinoma cells and to tumor metastases. This pancreatic cancer model will speed up pancreatic cancer research for novel treatments and biomarkers for early diagnosis.

DOI： 10.1016/j.omtn.2022.03.019

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記述言語：英語   出版者・発行元：日本消化器病学会-甲信越支部  

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記述言語：英語   出版者・発行元：日本消化器病学会-甲信越支部  

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記述言語：日本語   出版者・発行元：(一社)日本肝臓学会  

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

Objectives: Diversion colitis (DC) is an inflammatory disorder caused by interruption of the fecal stream and subsequent nutrient deficiency from luminal bacteria. The utility of fecal microbiota transplantation (FMT) for DC was recently investigated; however, the precise pathogenesis of this condition remains unclear. This study aimed to evaluate the utility of autologous FMT in DC and to determine the related changes in the intestinal microbiota. Methods: Autologous FMT was performed to reestablish the intestinal microbiota in five patients (average age, 64.6 ± 8.3 years) with DC. They underwent double-ended colostomy. We assessed the diverted colon by endoscopy and evaluated the microbiota before and after FMT using the 16S rRNA gene sequencing method. Results: All five patients had mild inflammation (ulcerative colitis endoscopic index of severity [UCEIS] 2-3) in the diverted colon based on the colonoscopic findings. Three patients presented with symptoms, such as tenesmus, mucoid stool, and bloody stool. With FMT treatment, all patients achieved endoscopic remission (UCEIS score of 0 or 1) and symptomatic improvement. We observed a significantly decreased α-diversity in DC patients compared to healthy controls. The frequency of aerobic bacteria, such as Enterobacteriaceae, in the diverted colon decreased after autologous FMT. Conclusions: This study was the first to show that the microbiota in the diverted colon was significantly affected by autologous FMT. Since interruption of the fecal stream is central to the development of DC, FMT can be considered a promising treatment.

DOI： 10.1002/deo2.63

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記述言語：日本語   出版者・発行元：(一財)日本消化器病学会  

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記述言語：英語   出版者・発行元：日本消化器病学会-甲信越支部  

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記述言語：英語   出版者・発行元：日本消化器病学会-甲信越支部  

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

Pneumocystis jirovecii pneumonia (PJP) and cytomegalovirus (CMV) colitis are opportunistic infections that occur during immunosuppressive treatments for ulcerative colitis (UC). The prognosis of PJP and CMV colitis is very poor. We herein report a rare case of a 74-year-old UC patient with PJP and CMV colitis that was successfully treated with intensive therapy. PJP progresses rapidly, so the timing and choice of treatment are critical. Furthermore, a literature review of similar cases suggested that prophylactic therapy for opportunistic infections might be important, especially in the elderly. This case will serve as a reference for successful treatment in future cases.

DOI： 10.2169/internalmedicine.7953-21

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記述言語：日本語   出版者・発行元：(一社)日本門脈圧亢進症学会  

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.14309/ajg.0000000000001367

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

BACKGROUND: Involuntary weight loss related to cachexia is common in patients with advanced cancer, but the association between body composition changes and survival is still unclear in pancreatic cancer. METHODS: We retrospectively reviewed the clinical outcomes of 55 patients with advanced pancreatic cancer undergoing palliative therapy or best supportive care (BSC). The skeletal muscle index (SMI), visceral adipose tissue index (VATI), subcutaneous adipose tissue index (SATI), and visceral to subcutaneous adipose tissue area ratio (VSR) were calculated based on the cross-sectional area on two sets of computed tomography images obtained at cancer diagnosis and 1 month later before treatment. The prognostic value of body composition indexes at diagnosis and the changes in those indexes over 1 month was then evaluated. RESULTS: In total, 45 patients (81.8%) received chemotherapy, chemoradiation, or radiation therapy, whereas the remaining patients underwent BSC. There were 27 patients (49.1%) who had low SMI at cancer diagnosis. Univariate analysis showed no significant associations between the baseline body composition indexes including SMI, VATI, SATI, and VSR and survival. Meanwhile, male sex (HR, 2.79; 95% CI, 1.16-6.71, p = 0.022) and higher decrease in VATI over 1 month (HR, 2.41; 95% CI, 1.13-5.13, p = 0.023) were identified as independent risk factors for mortality in multivariate analysis. CONCLUSION: Rapid decline in VAT over 1 month is closely associated with poorer survival in unresectable advanced pancreatic cancer. A short-term assessment of body composition changes may be a rational approach to predict prognosis in these patients.

DOI： 10.1002/cam4.3964

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記述言語：日本語   出版者・発行元：(株)癌と化学療法社  

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記述言語：英語   出版者・発行元：日本消化器病学会-甲信越支部  

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

It is reported that an increase in aerobic bacteria, a lack of short-chain fatty acids (SCFAs), and immune disorders in the diverted colon are major causes of diversion colitis. However, the precise pathogenesis of this condition remains unclear. The aim of the present study was to examine the microbiota, intestinal SCFAs, and immunoglobulin A (IgA) in the diverted colon. Eight patients underwent operative procedures for colostomies. We assessed the diverted colon using endoscopy and obtained intestinal samples from the diverted colon and oral colon in these patients. We analyzed the microbiota and SCFAs of the intestinal samples. The bacterial communities were investigated using a 16S rRNA gene sequencing method. The microbiota demonstrated a change in the proportion of some species, especially Lactobacillus, which significantly decreased in the diverted colon at the genus level. We also showed that intestinal SCFA values were significantly decreased in the diverted colon. Furthermore, intestinal IgA levels were significantly increased in the diverted colon. This study was the first to show that intestinal SCFAs were significantly decreased and intestinal IgA was significantly increased in the diverted colon. Our data suggest that SCFAs affect the microbiota and may play an immunological role in diversion colitis.

DOI： 10.1016/j.bbrep.2020.100892

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記述言語：日本語   出版者・発行元：(一財)日本消化器病学会  

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

We observed a rare case of two different digestive paraneoplastic syndromes that improved with the treatment of the neoplasms. The first syndrome was chronic intestinal pseudo-obstruction (CIPO), which is a subtype of paraneoplastic syndromes called a paraneoplastic neurological syndrome (PNS). The second was Stauffer's syndrome, which is a unique paraneoplastic syndrome characterised by non-metastatic intrahepatic cholestasis associated with neoplasms. Here, we report the case of a 55-year-old man who presented with two concurrent paraneoplastic syndromes in the digestive system. The intestinal pseudo-obstruction and elevated biliary enzyme levels improved as the lung cancer responded to chemotherapy. In this case, CIPO as a PNS led to the detection of lung cancer. To our knowledge, this is the first report of Stauffer's syndrome caused by lung adenocarcinoma.

DOI： 10.1136/bcr-2020-240161

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：SPRINGER JAPAN KK  

Jaundice may be persistent in drug-induced liver injury associated with vanishing bile duct syndrome. However, recurrent jaundice is atypical, following bile flow restoration. Here, we report a 28-year-old man with prolonged, recurrent jaundice (more than 300 days) and combined immunodeficiency (CID) of B-cells, T-cells, and natural killer (NK) cells. Hypogammaglobulinemia was observed throughout his hospitalization, and peripheral blood flow cytometry detected a few B-cells (2% of CD19 + cells and 2% of CD20 + cells). We further detected the dysfunction of T-cells and NK cells. Based on these findings, CID was diagnosed. We presumed that hypogammaglobulinemia was related to the jaundice. After regular injections of intravenous immunoglobulin (IVIG), the stool color gradually turned brown. However, the color returned to white as IgG levels decreased. The brown-to-white stool pattern was repeated with another IVIG administration, suggesting that the patient's serum immunoglobulin levels were related to the jaundice. On follow-up, IVIG was performed every two to three weeks, and his total bilirubin improved gradually. Immunoglobulin replacement therapy could be one of the treatment choices for jaundice with CID.

DOI： 10.1007/s12328-021-01347-0

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：KARGER  

Background: The relationship between the amount of adipose tissue and advanced-stage liver cirrhosis with esophageal varices (EV) is unknown. We aimed to reveal the prognostic significance of adipose tissues in patients with liver cirrhosis. Methods: We enrolled 87 patients with EV who received initial endoscopic treatment and underwent scheduled treatments in our hospital. Computed tomography (CT) images were obtained of a 5-mm slice at the umbilical level. We evaluated the effect of mortality based on the visceral adipose tissue index (VATI), subcutaneous adipose tissue index (SATI), and visceral to subcutaneous adipose tissue ratio (VSR). Results: Cox hazard multivariate analysis showed that the presence of hepatocellular carcinoma (HCC; hazard ratio [HR]: 4.650, 95% confidence interval [CI]: 1.750-12.353, p = 0.002), gamma-GTP (HR: 1.003, 95% CI: 1.001-1.006, p = 0.026), and VATI (HR: 1.057, 95% CI: 1.030-1.085, p < 0.001) significantly affected mortality. Cox hazard multivariate analysis for liver-related death was also significantly affected by HCC (HR: 1.057, 95% CI: 1.030-1.085, p < 0.001) and VATI (HR: 1.052, 95% CI: 1.019-1.086, p = 0.002). The difference between the Child-Pugh scores 12 months after treatment and that during initial treatment were significantly positively correlated with VATI (r = 0.326, p = 0.027). Patients with high VATI had a significantly higher frequency of HCC after EV treatment by Kaplan-Meier analysis (p = 0.044). Conclusion: Our findings suggest that VATI measured by CT could significantly predict mortality in cirrhosis patients through decreasing liver function and increasing HCC frequency, and appropriately controlling VATI could improve their prognosis. (c) 2020 S. Karger AG, Basel

DOI： 10.1159/000508867

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

BACKGROUND/AIMS: Patients with achalasia have a high incidence of esophageal squamous cell carcinoma (ESCC), which may be associated with alterations in oral and esophageal microbiota caused by food stasis. This study compared the oral and esophageal microbiota of patients with achalasia before and after peroral endoscopic myotomy (POEM). It also compared patients with achalasia to those with ESCC. MATERIALS AND METHODS: The study prospectively examined 6 patients with achalasia and 14 with superficial ESCC. Oral samples obtained from the buccal mucosa using a swab and esophageal samples obtained from the mid-esophagus using a brush via endoscopy were analyzed by 16S rRNA metagenome sequencing. Additionally, endoscopic and histological findings of patients with achalasia before and after POEM were prospectively compared. RESULTS: In patients with achalasia, Streptococcus was most abundant in both the oral and the esophageal microbiota, and these microbiota were significantly different. Although the overall structure of the oral and esophageal microbiota did not change after POEM, the relative abundance rate of Haemophilus and Neisseria increased in the esophagus, and endoscopic findings of inflammation improved after POEM (P = .04). The relative abundance of microbiota was not different among patients with achalasia from those with ESCC. CONCLUSIONS: The oral and esophageal microbiota were significantly different in patients with achalasia, and some of the composition of the esophageal microbiota changed after POEM. However, these findings and disease-specific microbiota should be further evaluated in large-scale studies.

DOI： 10.5152/tjg.2020.19995

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記述言語：日本語   出版者・発行元：埼玉県医学会  

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：KARGER  

Focal nodular hyperplasia (FNH) is the second most frequent benign liver tumor, and it is a fiber-rich stiff lesion. Typically, FNH can be diagnosed by imaging without biopsy. However, liver biopsy and diagnostic resection may be required to differentiate atypical FNH from other liver tumors, such as hepatocellular adenoma (HCA). Therefore, improved noninvasive diagnostic methods are needed. We experienced 2 cases where combination of magnetic resonance elastography (MRE) and gadolinium ethoxybenzyl diethylenetriaminepentaacetic acid (Gd-EOB-DTPA)-enhanced magnetic resonance imaging (MRI) helped diagnose FNH. A 36-year-old woman and 17-year-old boy with liver tumors measuring 40 mm in diameter each showed hypointense nodule centers, indicating a central scar, surrounded by hyperintense signals during the hepatobiliary phase of Gd-EOB-DTPA-enhanced MRI. To rule out HCA, we performed MRE and liver biopsy. On MRE, the mean stiffness of the mass was 11.6 kPa (mean stiffness of the background liver was 1.7 kPa) and 11.1 kPa (mean stiffness of the background liver was 2.4 kPa) in the first and second patients, respectively. Histological examination of both specimens showed CK7-positive bile-ductular proliferations, abundant fibrous tissue, and few Ki-67-positive cells. Based on these results, we diagnosed these tumors as FNH. Combination of Gd-EOB-DTPA-enhanced MRI and MRE can evaluate the character and stiffness of lesion and help in the diagnosis of FNH.

DOI： 10.1159/000516552

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：WILEY  

DOI： 10.1002/jhbp.884

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：WILEY  

Background This study aimed to identify the risk factors for walled-off necrosis (WON) associated with severe acute pancreatitis (SAP). Methods This retrospective study was conducted in eight institutions in Japan between 2014 and 2017. We analyzed WON incidence, patient characteristics, and risk factors for WON in patients with SAP who were observed for >28 days. Results Of 134 patients with SAP, WON occurred in 40 (29.9%). Male sex (P = .045), body mass index (BMI) >= 25 (P < .001), post-endoscopic retrograde cholangiopancreatography (ERCP) pancreatitis (P = .020), and disseminated intravascular coagulation (DIC) (P = .001) were more frequent in the WON group than in the non-WON group. On admission, the frequency of white blood cell counts >= 12 000/mu L (P = .037) and hypoenhanced pancreatic lesion on computed tomography (P = .047) were significantly higher in the WON group. In multivariate analysis, BMI >= 25 (odds ratio [OR] 5.73, 95% confidence interval [CI] 1.95-16.8;P = .002), post-ERCP (OR 8.08, 95% CI 1.57-41.7;P = .013), and DIC (OR 3.52, 95% CI 1.20-10.4;P = .022) were independent risk factors for WON. Conclusions High BMI, post-ERCP pancreatitis, and DIC are risk factors for the development of WON associated with SAP.

DOI： 10.1002/jhbp.787

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：BAISHIDENG PUBLISHING GROUP INC  

BACKGROUNDA type 2b immunoglobulin G4 (IgG4)-related sclerosing cholangitis (SC) without autoimmune pancreatitis is a rare condition with IgG4-SC. While the variety of the imaging modalities have tested its usefulness in diagnosing the IgG4-SC, however, the usage of ultrasonography for the assessment of the response to steroidal therapy on the changes of bile duct wall thickness have not been reported in the condition. Therefore, the information of our recent case and reported cases have been summarized.CASE SUMMARYWe report the case of an 82-year-old Japanese man diagnosed with isolated IgG4-related SC based on the increase of serum IgG4, narrowing of the bile duct, its wall thickness, no complication of autoimmune pancreatitis, and IgG4 positive inflammatory cell infiltration to the wall with the fibrotic changes. The cholangiogram revealed type 2b according to the classification. Corticosteroid treatment showed a favorable effect, with the smooth decrease in serum IgG4 and the improvement of the bile duct wall thickness.CONCLUSIONAs isolated type 2b, IgG4-SC is rare, the images, histological findings, and clinical course of our case will be helpful for physicians to diagnose and treat the new cases appropriately.

DOI： 10.12998/wjcc.v8.i22.5821

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記述言語：日本語   出版者・発行元：(一社)日本消化器外科学会  

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：KARGER  

Pancreatic pseudocyst-portal vein (PP-PV) fistula, mostly occurring after pseudocyst formation following acute/chronic pancreatitis, is a rare but life-threatening condition. The majority of treatments are based on conservative or surgical interventions. We report the case of a 70-year-old man with a PP-PV fistula and PV thrombosis. We adopted conservative treatment at first due to his mild symptoms. However, after resuming food intake, the patient had severe abdominal pain. Following endoscopic retrograde cholangiopancreatography, we found that the pseudocyst was connected with the PV through the fistula. Subsequently, an endoscopic nasopancreatic drainage (ENPD) catheter was inserted into the main pancreatic duct to establish pancreatic drainage, which resulted in a decrease in the abdominal pain. After the ENPD tube had been exchanged for endoscopic pancreatic stenting, his abdominal pain did not recur. Therefore, this case demonstrated endoscopic treatment as an effective treatment option for PP-PV fistula.

DOI： 10.1159/000510331

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：WILEY  

This report highlights the easy peeling of the esophageal epithelium with Nikolsky phenomenon after swallowing the foreign body and the healing status of the esophagus only 3 days later in a patient of pemphigus vulgaris.

DOI： 10.1002/ccr3.2846

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：WILEY  

Background and Aim Patients with achalasia experience weight loss because of dysphagia caused by impaired relaxation of the lower esophageal sphincter. This study aimed to use dual bioelectrical impedance analysis (BIA) to determine the change in bodyweight and body composition in patients with achalasia before and after peroral endoscopic myotomy (POEM).Methods Patients with achalasia who underwent POEM from 2013 to 2018 (n = 72) were retrospectively analyzed for change in bodyweight before and after 3 months. Additionally, change in body composition was prospectively investigated in the final 10 of 72 patients using non-radiation dual BIA.Results Twenty patients (27.8%) were underweight (body mass index < 18.5) before undergoing POEM. No clinical parameters were identified to be associated with the underweight condition before POEM and be predictive of an increase in bodyweight after POEM. Low visceral fat volume observed on dual BIA correlated closely with the result obtained using computed tomography (Pearson correlation coefficient: r = 0.850, P < 0.01). Patients with achalasia had a statistically significant increase in visceral (P < 0.01) and subcutaneous fat volumes (P < 0.01) after POEM. Skeletal muscle mass index slightly increased (P = 0.02), although the value after POEM was still low. No blood biomarkers were indicators for low bodyweight or low visceral fat volume.Conclusions Dual BIA is an effective non-invasive tool to evaluate the change in body composition of underweight patients with achalasia. Skeletal muscle volume was not enough after POEM, although a rapid increase in the intra-abdominal fat volume was observed. Additional studies are warranted to understand the pathological implications.

DOI： 10.1111/jgh.14847

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：SPRINGER JAPAN KK  

Background To further clarify the clinico-epidemiological features of autoimmune pancreatitis (AIP) in Japan, we conducted the fourth nationwide epidemiological survey. Methods This study consisted of two stage surveys; the number of AIP patients was estimated by the first survey and their clinical features were assessed by the second survey. We surveyed the AIP patients who had visited hospitals in 2016. Results The estimated number of AIP patients in 2016 was 13,436, with an overall prevalence rate of 10.1 per 100,000 persons. The estimated number of newly diagnosed patients was 3984, with an annual incidence rate of 3.1 per 100,000 persons. Compared to the 2011 survey, both numbers more than doubled. We obtained detailed clinical information of 1474 AIP patients. The male-to-female sex ratio was 2.94, the mean age was 68.1, and mean age at diagnosis was 64.8. At diagnosis, 63% patients were symptomatic and nearly half of them presented jaundice. Pancreatic cysts were found in 9% of the patients and calcifications in 6%. Histopathological examination was performed in 64%, mainly by endoscopic ultrasonography-guided fine needle aspiration. Extra-pancreatic lesions were detected in 60% of the patients. Eighty-four % patients received the initial steroid therapy, and 85% received maintenance steroid therapy. Kaplan-Meier analysis revealed that the relapsed survival was 14% at 3 years, 25% at 5 years, 40% at 10 years, and 50% at 15 years. Mortality was favorable, but pancreatic cancer accounted for death in one quarter of fatal cases. Conclusion We clarified the current status of AIP in Japan.

DOI： 10.1007/s00535-019-01658-7

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記述言語：英語   出版者・発行元：LIPPINCOTT WILLIAMS & WILKINS  

DOI： 10.1097/MPA.0000000000001450

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：JAPAN SOC INTERNAL MEDICINE  

Ulcerative colitis, a chronic and recurrent inflammatory disease, is localized to the colonic mucosa but can affect other organs and lead to various complications. Gastroduodenitis associated with ulcerative colitis has been reported. However, little is known about esophageal ulcers. We herein report two rare cases of esophageal ulcers associated with ulcerative colitis. Furthermore, the clinical and histological characteristics of 18 previously reported cases are summarized. This case series and literature review will encourage the accurate diagnosis and treatment of esophageal ulcers associated with ulcerative colitis.

DOI： 10.2169/internalmedicine.4437-20

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：JAPAN SOC INTERNAL MEDICINE  

DOI： 10.2169/internalmedicine.5257-20

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：JAPAN SOC INTERNAL MEDICINE  

A 75-year-old woman with liver cirrhosis was admitted for treatment of portal vein thrombosis (PVT). Computed tomography (CT) showed PVT, massive ascites, and multiple abdominal organ embolism. Blood tests revealed a decreased liver function (Child-Pugh grade C). Language impairment followed by progressive left hemi-paralysis was subsequently detected. Magnetic resonance imaging revealed multiple small acute cerebral infarctions and, on CT, a 30-mm bladder tumour; a biopsy specimen examination showed squamous cell carcinoma. Her general condition worsened rapidly, and the best supportive care was chosen. Our findings suggest that, in patients with PVT, Trousseau syndrome should be considered, even in cases of liver cirrhosis.

DOI： 10.2169/internalmedicine.4112-19

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：WILEY  

Although linear mucosal tears have been reported, we found a relatively rare case of wavy mucosal tear in collagenous colitis. This may be related to the mutual weak adhesiveness between the epithelium and collagen band. This complication necessitates great care to be taken while performing colonoscopy in patients suspected of collagenous colitis.

DOI： 10.1002/ccr3.2275

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1007/s12328-019-00939-1

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記述言語：英語   出版者・発行元：W B SAUNDERS CO-ELSEVIER INC  

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：ELSEVIER SCI LTD  

Hepatocellular carcinomas (HCCs), which often arise from chronic liver damage, have poor conditional 5-year survival and are recognized as heterogeneous tumors. Considering the heterogeneity of HCCs, diverse perspectives need to be addressed for treating such tumors, besides the findings of conventional imaging modalities and tumor markers. Data from the latest technologies, such as liquid biopsy, and the detection of the presence of cancer cells with stem/progenitor cell markers, gene mutations and diverse pathways, crosstalk with immune cells and cancer-associated fibroblasts, and mechanisms of epithelial-mesenchymal transition provide diverse lines of information. Integration of these data with clinical data might be necessary to develop effective therapies for precision medicine. Here, we review several aspects of dealing with the complexity of heterogeneous HCCs.

DOI： 10.1016/j.heliyon.2019.e01325

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：SPRINGER JAPAN KK  

We report a case of inferior vena cava (IVC) thrombosis caused by compression by a giant liver cyst. A 68-year-old man with a 1-day history of abdominal pain was referred to another hospital. Ultrasonography (US) and enhanced computed tomography (CT) showed a multilobular cyst on the right liver lobe that had increased to 300mm in diameter from 90mm 18months earlier. Thrombosis was detected in the IVC, which was compressed by the cyst. Percutaneous transhepatic cyst drainage achieved no significant change in size. Cytological analysis from the percutaneous drainage tube fluid showed no evidence of malignancy. He was referred to our hospital for further assessment and treatment. Enhanced US using perfluorobutane, CT, and magnetic resonance imaging showed no tumorous lesions in the cyst. Thus, we diagnosed it as a multilobular cyst with no evidence of malignancy. A 3-week course of heparin resulted in the successful resolution of the thrombosis. Cystectomy was subsequently performed and pathological examination showed a multifocal cyst consisting of central suppurative inflammatory exudation and hemorrhagic material, with no malignancy. This case demonstrates that giant, expanding, non-tumorous cysts can cause IVC thrombosis. Careful treatment using heparin successfully resolved the thrombosis and allowed successful cystectomy.

DOI： 10.1007/s12328-018-0885-x

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1159/000498913

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DOI： 10.1111/jgh.14312

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記述言語：日本語   出版者・発行元：埼玉県医学会  

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記述言語：日本語   出版者・発行元：埼玉県医学会  

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記述言語：日本語   出版者・発行元：(一社)日本外科感染症学会  

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：WILEY  

Key Clinical Message Our case highlights the need for caution during vascular endothelial growth factor pathway inhibitor (VPI) therapy and for the occurrence of aortic dissection. If Stanford classification type A aortic dissection occurs during VPI therapy, surgical intervention should be considered to prevent cardiac tamponade if the patient's clinical condition permits it.

DOI： 10.1002/ccr3.1674

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：GEORG THIEME VERLAG KG  

Background Esophageal squamous cell carcinoma (ESCC) invading the muscularis mucosae (MM) and submucosa up to 200 mu m (SM1) has a risk of metastasis. The aims of this study were to investigate the long-term outcome of endoscopic submucosal dissection (ESD) for MM/SM1 ESCC and to assess the management after ESD in our hospital. Methods This was a retrospective cohort study conducted at a single institution. Patients with MM or SM1 ESCC who were treated with ESD were included. Additional prophylactic therapy was added if lymphovascular involvement (LVI) was noted in the ESD specimens.Results A total of 102 patients were analyzed. The median length of follow-up was 71.5months (range 9-144 months) and the median number of CTs was 6 (range 0-24). LVI was found in 21 patients (20.6%), and 12 patients underwent additional prophylactic therapy. The 5-year overall survival, disease-specific survival, and tumor-free survival rates were 84.1%, 97.5%, and 82.1%, respectively. A total of 26 patients died, but only 2 of them died from ESCC. The cumulative metastasis rate was 11.8%, and LVI was a significant predictor of metastasis (hazard ratio 5.42, 95% confidence interval 1.39-21.18; P = 0.02). There were no differences between patients with MM ESCC and those with SM1 ESCC.Conclusions The long-term outcome after ESD for MM/SM1 ESCC was favorable with additional prophylactic therapy and strict adherence to follow-up.These results indicate that our management decision based on LVI is a valid approach and that ESD can be offered as a therapeutic option to MM/SM1 ESCCs.

DOI： 10.1055/s-0043-124433

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記述言語：日本語   出版者・発行元：(一社)日本消化器外科学会  

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記述言語：英語   出版者・発行元：MOSBY-ELSEVIER  

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記述言語：英語   出版者・発行元：MOSBY-ELSEVIER  

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記述言語：英語   出版者・発行元：MOSBY-ELSEVIER  

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記述言語：英語   出版者・発行元：MOSBY-ELSEVIER  

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記述言語：英語   出版者・発行元：W B SAUNDERS CO-ELSEVIER INC  

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

A 74-year-old Japanese man with a history of chronic hepatitis C and kidney transplant (KT) was administered pegylated-interferon plus ribavirin therapy. However, this therapy was ineffective. The patient was then hospitalized to receive ombitasvir (OBV) plus paritaprevir (PTV) plus ritonavir (r) antiviral combination therapy. He tested negative for the virus after 4 weeks, and completed 12 weeks of treatment. The patient ultimately achieved a sustained virological response after the 12 weeks of treatment. Cyclosporine (CyA) trough levels, during the OBV-PTV-r therapy, reached a peak within 5 days of initiating therapy, and increases in serum creatinine and total bilirubin were also observed. However, onset of irreversible nephropathy and hepatopathy were avoided by reducing the CyA dosage. The OBV-PTV-r therapy demonstrated a sufficient antiviral effect and could be safely administered postoperatively to patients having undergone KT. When a combination therapy with interferon-free, direct-acting antivirals is used in patients post-transplantation, consideration of drug-drug interactions with and monitoring CyA are of vital importance.

DOI： 10.1016/j.transproceed.2018.01.006

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記述言語：日本語   出版者・発行元：(一社)日本外科学会  

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記述言語：日本語   出版者・発行元：(一社)日本外科学会  

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：SPRINGER  

Malignant bowel obstruction is a complication of colorectal carcinoma or metastasis from other carcinoma, and it causes significant damage on the condition of elderly patients; however, the self-expandable metallic stents (SEMSs) have been effectively used either for palliation or for bridging to the surgical procedure for this condition. The aim of this study was to investigate the factors influencing long-term outcomes of old-aged patients with SEMS for large bowel obstruction to develop the strategy for those patients in the community medicine.We performed a retrospective review of 42 patients with a median age of 83.0 years (range, 65-99 years), who underwent SEMS placement for malignant colorectal obstruction between 2006 and 2015 in our hospital. Univariate and multivariate logistic regressions were performed on data from the patients to assess the factors affecting 6-month survival without stent dysfunction.The study population comprised 24 females (57.1%) and 18 males (42.9%). Of these, 38 patients (90.5%) received SEMS as palliation, whereas 4 patients (9.5%) underwent subsequent surgery. SEMSs were successfully inserted in 97.6% of patients. The median duration of follow-up was 205.0 days (range, 20-1377 days). On multivariate analysis, shorter stents (< 10 cm) yielded better outcomes than longer stents (>= 10 cm) (P = 0.041), and the Cox proportional hazard model also indicated that shorter stents (P = 0.036) predicted longer event-free survival.Elderly patients with malignant bowel obstruction receiving shorter stents had longer event-free survival after stenting with better general condition.

DOI： 10.1007/s00384-017-2946-x

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掲載種別：研究論文（学術雑誌）  

DOI： 10.1111/nmo.13168

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記述言語：英語  

Background: Pancreatic tumors are often difficult to diagnose in atypical cases, and a pancreatic schwannoma is very rare. We present a case of pancreatic schwannoma with calcification diagnosed preoperatively by endoscopic ultrasonography (EUS)-guided fine needle aspiration (FNA) and treated with laparoscopic distal pancreatectomy. Presentation: A 72-year-old-woman was admitted to our hospital due to a 6 × 4.5 cm large tumor in the pancreatic tail. Imaging modalities revealed that the tumor was hypovascular and gradually enhanced with calcification, but was without cystic lesions. EUS revealed the tumor had a clear boundary with a low echoic mass. EUS-FNA was performed and spindle-shaped cells that were immunopositive for S-100 and negative for c-kit, CD34, and desmin were detected, resulting in a diagnosis of schwannoma. Laparoscopic distal pancreatectomy with splenectomy was safely performed without recurrence for a year. Conclusions: Schwannoma is very rare; however, characteristics of the tumor, such as calcification, can help the diagnosis and, if possible, EUS-FNA should be performed for an appropriate treatment decision.

DOI： 10.1089/pancan.2018.0002

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：BAISHIDENG PUBLISHING GROUP INC  

Duodenal gastrointestinal stromal tumors (GISTs) are extremely rare disease entities, and the extraluminal type is difficult to diagnose. These tumors have been misdiagnosed as pancreatic tumors; hence, pancreaticoduodenectomy has been performed, although partial duodenectomy can be performed if accurately diagnosed. Developing a diagnostic methodology including endoscopic ultrasonography (EUS) and fine-needle aspiration (FNA) has allowed us to diagnose the tumor directly through the duodenum. Here, we present a case of a 50-year-old woman with a 27-mm diameter tumor in the pancreatic uncus on computed tomography scan. EUS showed a well-defined hypoechoic mass in the pancreatic uncus that connected to the duodenal proper muscular layer and was followed by endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA). Histological examination showed spindle-shaped tumor cells positively stained for c-kit. Based on these findings, the tumor was finally diagnosed as a duodenal GIST of the extraluminal type, and the patient underwent successful mass resection with partial resection of the duodenum. This case suggests that EUS and EUS-FNA are effective for diagnosing the extraluminal type of duodenal GISTs, which is difficult to differentiate from pancreatic head tumor, and for performing the correct surgical procedure.

DOI： 10.4253/wjge.v9.i12.583

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：CELL PRESS  

Development of an effective, safe, and convenient method for gene delivery to the pancreas is a critical step toward gene therapy for pancreatic diseases. Therefore, we tested the possibility of applying the principle of hydrodynamic gene delivery for successful gene transfer to pancreas using rats as a model. The established procedure involves the insertion of a catheter into the superior mesenteric vein with temporary blood flow occlusion at the portal vein and hydrodynamic injection of DNA solution. We demonstrated that our procedure achieved efficient pancreas-specific gene expression that was 2,000-fold higher than that seen in the pancreas after the systemic hydrodynamic gene delivery. In addition, the level of gene expression achieved in the pancreas by the pancreas-specific gene delivery was comparable to the level in the liver achieved by a liver-specific hydrodynamic gene delivery. The optimal level of reporter gene expression in the pancreas requires an injection volume equivalent to 2.0% body weight with flow rate of 1 mL/s and plasmid DNA concentration at 5 mu g/mL. With the exception of transient expansion of intercellular spaces and elevation of serum amylase levels, which recovered within 3 days, no permanent tissue damage was observed. These results suggest that pancreas-targeted hydrodynamic gene delivery is an effective and safe method for gene delivery to the pancreas and clinically applicable.

DOI： 10.1016/j.omtn.2017.08.009

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掲載種別：研究論文（学術雑誌）  

DOI： 10.1093/dote/dox057

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：AME PUBL CO  

Background: Endoscopic submucosal dissection (ESD) and peroral endoscopic myotomy (POEM) are recently developed techniques that have the potential to significantly improve clinical outcomes. However, training opportunities on these techniques remain limited. To address this issue, we developed a novel ex-vivo ESD/POEM training model. Our aim in this paper is to describe the model and provide preliminary evidence of promising feasibility to improve access to ESD/POEM training.Methods: The model was developed using polyvinyl alcohol hydrogel, which can easily be modified to reproduce the stiffness of the different intestinal layers, namely the mucosa, submucosa, and muscle layer.Results: A training workshop, using our ex-vivo model, was held for 28 residents. Satisfaction and feasibility in using the ex-vivo model for endoscopic training were evaluated by using a self-report questionnaire. All participants were satisfied with their training experience (100% satisfaction rate), with 27 of the 28 participants reporting that the model was feasible in replicating all components of the ESD/POEM technique (96.4% feasibility rate).Conclusions: Based on this feedback, we propose that our non-biomaterial model has the feasibility to provide an effective endoscopy education tool and a satisfactory training experience.

DOI： 10.21037/atm.2017.01.27

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：BAISHIDENG PUBLISHING GROUP INC  

AIMTo define clinical criteria to differentiate eosinophilic gastrointestinal disorder (EoGD) in the esophagus.METHODSOur criteria were defined based on the analyses of the clinical presentation of eosinophilic esophagitis (EoE), subepithelial eosinophilic esophagitis (sEoE) and eosinophilic esophageal myositis (EoEM), identified by endoscopy, manometry and serum immunoglobulin E levels (s-IgE), in combination with histological and polymerase chain reaction analyses on esophageal tissue samples.RESULTSIn five patients with EoE, endoscopy revealed longitudinal furrows and white plaques in all, and fixed rings in two. In one patient with sEoE and four with EoEM, endoscopy showed luminal compression only. Using manometry, failed peristalsis was observed in patients with EoE and sEoE with some variation, while EoEM was associated with hypercontractile or hypertensive peristalsis, with elevated s-IgE. Histology revealed the following eosinophils per high-power field values. EoE = 41.4 +/- 7.9 in the epithelium and 2.3 +/- 1.5 in the subepithelium; sEoE = 3 in the epithelium and 35 in the subepithelium (conventional biopsy); EoEM = none in the epithelium, 10.7 +/- 11.7 in the subepithelium (conventional biopsy or endoscopic mucosal resection) and 46.8 +/- 16.5 in the muscularis propria (peroral esophageal muscle biopsy). Presence of dilated epithelial intercellular space and downward papillae elongation were specific to EoE. Eotaxin-3, IL-5 and IL-13 were overexpressed in EoE.CONCLUSIONBased on clinical and histological data, we identified criteria, which differentiated between EoE, sEoE and EoEM, and reflected a different pathogenesis between these esophageal EoGDs.

DOI： 10.3748/wjg.v23.i13.2414

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：GEORG THIEME VERLAG KG  

DOI： 10.1055/s-0043-100691

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：S. Karger AG  

Alpha-fetoprotein (AFP)-L3 was originally reported as a hepatocellular carcinoma (HCC)-specific tumor marker, and recent accumulation of evidence has revealed that AFP-L3 frequency predicts the biological malignancy potential of HCC. However, AFP-L3 elevation from undetectable levels after curative treatment could not be discussed due to the difficulties of calculating AFP-L3 concentrations when serum AFP levels were low. Here, as a novel method, we used highly sensitive AFP-L3 frequency to predict HCC recurrence after curative treatment. Our cases illustrate that recognizing elevation of AFP-L3 from undetectable levels led to the early detection of recurrent HCC due to more careful surveillance.

DOI： 10.1159/000462969

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：JAPAN SOC INTERNAL MEDICINE  

We herein report the case of a rapidly progressive sporadic mesenteric desmoid tumor (DT). A 62-year-old woman presented with a 4-cm-diameter palpable mass in the left supraumbilical area. The mass showed an ill-defined margin with heterogeneous delayed enhancement on computed tomography and heterogeneous high intensity on T2-weighted magnetic resonance imaging. Sixteen months after the initial observation, the mass had grown in size, reaching 13 cm in diameter. The resected mass was histologically confirmed as a DT of the mesentery. Since DT often has an unpredictable clinical course, clinicians should bear in mind the need for imaging follow-up.

DOI： 10.2169/internalmedicine.56.7320

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記述言語：日本語   出版者・発行元：日本臨床外科学会  

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記述言語：日本語   出版者・発行元：日本臨床外科学会  

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：HINDAWI LTD  

Bezoars are relatively rare foreign bodies of gastrointestinal tract and often cause ileus and ulcerative lesions in the stomach and subsequent bleeding and perforation due to their size and stiffness. Therefore, the removal of bezoars is essential and recent development of devices, the endoscopic removal procedure, is often applied. However, due to their stiffness, simple endoscopic removal failed in not a few cases, and surgical removal has also been used. Recently, the efficacy of a combination therapy of endoscopic procedure and dissolution using carbonated liquid has been reported. To develop the safe and effective removal procedure, we carefully reviewed a total of 55 reported cases in this study including our 3 additional cases, successfully treated with dissolution with endoscopic fragmentation. In summary, the data showed the efficiency in the combination therapy, treating the larger size of bezoar and reducing the length of hospital stay. To the best of our knowledge, this is the largest pragmatical and clinical review for the combination therapy of dissolution and endoscopic treatment for bezoars. This review should help physicians to manage bezoars more efficiently.

DOI： 10.1155/2016/7456242

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：HINDAWI LTD  

Background. Dentures and dental instruments are frequently encountered ingested foreign bodies. The aim of the present study was to assess the safety and efficacy of endoscopically removing ingested dental objects. Methods. Twenty-nine consecutive patients with 29 dental objects who were treated at the Niigata University Medical and Dental Hospital from August 2009 to December 2015 were retrospectively reviewed. Characteristics of the patients and the ingested dental objects, the clinical features and findings of radiological imaging tests, and outcomes of endoscopic removal were analyzed. Results. Patients' mean age was 62.9 + 21.0 years. The ingested dental objects included 23 dentures (13 crowns, 4 bridges, 4 partial dentures, and 2 other dentures) and 6 dental instruments. Twenty-seven upper gastrointestinal endoscopies and 2 colonoscopies were performed, and their success rates were 92.6% and 100%, respectively. There were 2 cases of removal failure; one case involved an impacted partial denture in the cervical esophagus, and this case required surgical removal. Conclusions. Endoscopic removal of ingested dentures and dental instruments is associated with a favorable success rate and acceptable complications. The immediate intervention and appropriate selection of devices are essential for managing ingested dental objects.

DOI： 10.1155/2016/3537147

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

We present a systemic primary AL amyloidosis patient with severe gastrointestinal bleeding for whom treatment with bortezomib and dexamethasone was very effective. An 83-year-old woman was admitted to our hospital suffering from multiple gastric ulcers with bleeding. She had monoclonal protein (IgG, λ) in her serum. Systemic primary AL amyloidosis was diagnosed. She was also suspected of having amyloid deposition in cardiac muscle, as well as her bladder and intestinal mucosa. However, we were unable to carry out other invasive examinations due to her bleeding tendency. She was treated with bortezomib and dexamethasone. Her bleeding tendency gradually diminished. After one year, the bleeding tendency had completely resolved. However, she still had amyloid deposition in her gastric mucosa and skin.

DOI： 10.11406/rinketsu.55.808

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

The hepatic cyst is a common benign liver tumor, and no surgical treatment is necessary. However, it is difficult to correctly diagnose the giant hepatic cyst containing the solid septal structures inside, from the malignant cystadenocarcinomas. The various imaging modalities such as computed tomography, magnetic resonance imaging, and ultrasonography, have been developed and are useful for the diagnosis of these liver tumors. Reviewing the other reports in this paper, the combination of more than 2 modalities will help to diagnose these tumors; however, the malignant potential is unable to be excluded if the tumor is huge. Therefore, the surgical resection should be considered for the huge hepatic cysts with septal structures if the correct diagnosis is unable to be made. For example, when the hemorrhages cause the granulation in the septa which often shows neovascularization, the imaging modalities are unable to define this situation from the malignant tissue with hypervascularity. Therefore, with the careful review of other reports, we conclude that if the imaging studies show the possible malignant potential or the sizing-up is marked, the surgical treatment should be considered with the consent from the patients.

DOI： 10.1155/2013/981975

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：JAPAN SOC INTERNAL MEDICINE  

We report a case of primary malignant mesothelioma of the appendix. A 35-year-old man without any history of asbestos exposure was admitted to our hospital for further examination following the discovery of multiple liver tumors, an ileocecal tumor, and abdominal lymph node swelling. An ultrasound-guided liver tumor biopsy revealed malignant mesothelioma. Despite receiving systemic chemotherapy, he died 3 months after the initial diagnosis. At autopsy, a diagnosis of multiple organ metastases from a malignant biphasic mesothelioma of the appendix was made. To our knowledge, this is only the second reported case of primary malignant mesothelioma of the appendix.

DOI： 10.2169/internalmedicine.51.6990

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：SPRINGER  

The shape and porosity of hematite particles, produced from a forced hydrolysis reaction of acidic FeCl3 solution, were controlled by using Pluronics as nonionic surfactants (0-4 wt.%). Pluronics possess a nominal formula of (PEO) (x) -(PPO) (y) -(PEO) (x) . The effect of Pluronics with low hydrophilicity (PEO contents were less than 50 mol%) was small and provided spherical particles the same as that of the system without Pluronics (control system). However, Pluronics with higher hydrophilicity (PEO contents were over 50 mol%) gave ellipsoidal hematite particles. This effect on the particle morphology was enhanced by an increase in their molecular weight. On the other hand, the Pluronics possessing an opposite nominal formula [(PPO) (x) -(PEO) (y) -(PPO) (x) ] exhibited no effect on the particle shape; it only depressed phase transformation from aZ center dot-FeOOH to hematite. Not only the morphology but also the pore size of hematite particles was controlled from nonporous to mesoporous by using Pluronics. The N-2 adsorption experiment and t-plot curve analysis revealed that the hematite particles changed from mesoporous to microporous by an increase in the concentration of Pluronics. On the other hand, in the presence of very low amounts of Pluronics molecules (0.1 wt.%), nonporous hematite particles were produced via strong aggregation of PN particles by their hydrogen bonding between hydroxyl and PEO or PPO groups. The dynamic light scattering measurement for the system with Pluronics clarified the existence of polynuclear (PN) particles with a hydrodynamic particle diameter (D (a)) of ca. 40 nm after these were aged for 6 h. The size of PN particles remained constant at ca. 40 nm during aging time of 12 h similar to 3 days, but the scattering intensity was decreased. This decrease in the scattering intensity reveals that the number of PN particles is reduced by aggregation. The transmission electron microscope, inductively coupled plasma atomic emission spectroscopy, and total organic carbon analysis measurements employed on the systems produced for ellipsoidal particles elucidated that the formation of ellipsoidal hematite particles is attributed to the adsorption of Pluronics on the surfaces of PN and growing hematite particles.

DOI： 10.1007/s00396-010-2234-6

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記述言語：日本語   出版者・発行元：日本臨床外科学会  

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記述言語：日本語   出版者・発行元：(一社)日本膵臓学会  

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記述言語：日本語   出版者・発行元：(一財)日本消化器病学会  

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記述言語：日本語   出版者・発行元：日本消化器病学会-甲信越支部  

J-GLOBAL

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記述言語：日本語   出版者・発行元：日本消化器病学会-甲信越支部  

J-GLOBAL

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記述言語：日本語   出版者・発行元：日本消化器病学会-甲信越支部  

J-GLOBAL

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記述言語：日本語   出版者・発行元：日本消化器病学会-甲信越支部  

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記述言語：日本語   出版者・発行元：(一社)日本肝臓学会  

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記述言語：日本語   出版者・発行元：(一社)日本消化器内視鏡学会  

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記述言語：日本語   出版者・発行元：(一社)日本消化器内視鏡学会  

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記述言語：日本語   出版者・発行元：(株)癌と化学療法社  

症例は21歳、男性。当院血液内科にて悪性リンパ腫の治療寛解2年後に、右下腹部腫瘤を自覚した。腹部CTで回盲部に腫瘤性病変を認め、再発の疑いで当科へ生検目的で紹介となった。腫瘤は盲腸に浸潤しており、腹腔鏡下回盲部切除術を施行した。病理組織学的に再発は否定され、デスモイド腫瘍と診断された。開腹歴のない若年性の腹腔内デスモイド腫瘍の報告例は少ないため、文献的考察を加えて報告する。(著者抄録)

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その他リンク： https://search.jamas.or.jp/index.php?module=Default&action=Link&pub_year=2019&ichushi_jid=J00296&link_issn=&doc_id=20190919200017&doc_link_id=%2Fab8gtkrc%2F2019%2F004609%2F018%2F1441-1443%26dl%3D0&url=http%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Fab8gtkrc%2F2019%2F004609%2F018%2F1441-1443%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

記述言語：日本語   出版者・発行元：医歯薬出版(株)  

腹部超音波はその非侵襲性と簡便性のため、検診的なスクリーニングから緊急時のスクリーニング、造影超音波や穿刺治療など、幅広い場面で日常診療において使用されている。したがって、腹部超音波の技術の習得は実臨床において非常に重要である。腹部超音波診断ファントムは、生体と同じようにプローベを当てることができ、腹部臓器の基本描出の習得に有用である。また、バーチャル技術を用いたシミュレータでは超音波画像と周囲臓器の超音波の断面を同時に見ることができ、超音波検査における臓器の解剖学的位置関係の理解や技術習得の助けとなる。また、近年では腹部消化器領域、とくに胆膵領域の診断と治療において超音波内視鏡が必須となってきている。超音波内視鏡の画像読影と技術の習得には修練を要するが、専用のファントムやバーチャル技術を用いたシミュレータが使用可能となってきており、技術の習得が、より容易になることが期待される。(著者抄録)

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その他リンク： https://search.jamas.or.jp/index.php?module=Default&action=Link&pub_year=2019&ichushi_jid=J00060&link_issn=&doc_id=20190624030012&doc_link_id=%2Faa7ayuma%2F2019%2F026912%2F013%2F0945-0948%26dl%3D0&url=http%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Faa7ayuma%2F2019%2F026912%2F013%2F0945-0948%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

記述言語：日本語   出版者・発行元：(一社)日本消化器内視鏡学会  

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記述言語：日本語   出版者・発行元：(一社)日本消化器内視鏡学会  

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記述言語：日本語   出版者・発行元：(株)癌と化学療法社  

症例は19歳、女性。前医にて黄疸を指摘され当院を紹介受診した。腹部造影CT検査で肝内・外胆管の拡張を、上部消化管内視鏡検査で乳頭部に潰瘍性病変を認めた。生検で中分化型腺癌と診断され、幽門輪温存膵頭十二指腸切除術が施行された。病理にてpT3bN1M0、pStage IIBの診断となり、術後補助療法としてS-1の内服を6ヵ月間行った。術後17年現在、無再発生存中である。若年性十二指腸乳頭部癌の症例は自験例を含め3例と非常にまれなため報告する。(著者抄録)

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その他リンク： https://search.jamas.or.jp/index.php?module=Default&action=Link&pub_year=2019&ichushi_jid=J00296&link_issn=&doc_id=20190604480022&doc_link_id=%2Fab8gtkrc%2F2019%2F004605%2F023%2F0937-0939%26dl%3D0&url=http%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Fab8gtkrc%2F2019%2F004605%2F023%2F0937-0939%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

記述言語：日本語   出版者・発行元：日本臨床外科学会  

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記述言語：日本語   出版者・発行元：(一財)日本消化器病学会  

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記述言語：日本語   出版者・発行元：(一財)日本消化器病学会  

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記述言語：日本語   出版者・発行元：東京慈恵会医科大学成医会  

65歳女。発熱と食思不振を主訴に当院救急外来を受診した。6年前に肝嚢胞を指摘されており、造影CTで同部位に厚い被膜形成を伴う液体貯留を認めたことから感染性肝嚢胞と診断し、超音波ガイド下にPTADを施行した。内容液は乳白色を呈しており、ピッグテール型ドレナージチューブを留置した。内容液の培養検査でKlebsiella oxytocaが検出され、抗菌薬治療としてCTRX 3g/日の投与を開始した。排液量は徐々に減少し、内容液の性状は黄色漿液性となり、炎症反応も改善した。第6病日に抗菌薬を終了し、第8病日に嚢胞造影で胆管との交通がないことを確認してチューブを抜去した。その後の経過も良好で、第10病日に退院となった。

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その他リンク： https://search.jamas.or.jp/index.php?module=Default&action=Link&pub_year=2019&ichushi_jid=J00884&link_issn=&doc_id=20190426090002&doc_link_id=%2Fcz8jikei%2F2019%2F013401%2F002%2F0009-0012%26dl%3D0&url=http%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Fcz8jikei%2F2019%2F013401%2F002%2F0009-0012%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

記述言語：日本語   出版者・発行元：日本消化器病学会-甲信越支部  

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記述言語：日本語   出版者・発行元：(株)癌と化学療法社  

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記述言語：日本語   出版者・発行元：(株)癌と化学療法社  

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記述言語：日本語   出版者・発行元：日本消化器病学会-甲信越支部  

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記述言語：日本語   出版者・発行元：日本消化器病学会-甲信越支部  

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記述言語：日本語   出版者・発行元：(一社)日本肝臓学会  

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記述言語：日本語   出版者・発行元：(一社)日本消化器内視鏡学会  

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記述言語：日本語   出版者・発行元：(一社)日本消化器内視鏡学会  

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記述言語：日本語   出版者・発行元：(一社)日本消化器内視鏡学会  

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記述言語：日本語   出版者・発行元：(一社)日本消化器内視鏡学会  

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記述言語：日本語   出版者・発行元：(一社)日本消化器内視鏡学会  

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記述言語：日本語   出版者・発行元：(株)癌と化学療法社  

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記述言語：日本語   出版者・発行元：(株)癌と化学療法社  

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記述言語：日本語   出版者・発行元：日本臨床外科学会  

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記述言語：日本語   出版者・発行元：(一財)日本消化器病学会  

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記述言語：日本語   出版者・発行元：(一社)日本消化器内視鏡学会  

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記述言語：日本語   出版者・発行元：(一社)日本消化器内視鏡学会  

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記述言語：日本語   出版者・発行元：(一社)日本消化器内視鏡学会  

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記述言語：日本語   出版者・発行元：(一財)日本消化器病学会  

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記述言語：日本語   出版者・発行元：(一財)日本消化器病学会  

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記述言語：日本語   出版者・発行元：(一財)日本消化器病学会  

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記述言語：日本語   出版者・発行元：(一財)日本消化器病学会  

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記述言語：日本語   出版者・発行元：(一社)日本消化管学会  

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記述言語：日本語   出版者・発行元：(株)癌と化学療法社  

症例は67歳、女性。腹痛、嘔気を主訴に当院へ救急搬送され、急性膵炎と診断し入院した。入院後に重症化し、意識障害と急性呼吸不全を併発したため人工呼吸器管理を開始した。発熱が持続し感染性膵壊死を疑い腹部エコーを施行、腹腔内に大量の貯留物を認めたため腹壁から経皮的ドレナージを5回施行した。しかし、高熱が出現するため腹部CT検査を行い、多発ガス像を伴う被包化壊死(walled-off necrosis:WON)を認め、感染の原因と考えた。CT検査および上部消化管内視鏡検査で胃体下部後壁に瘻孔を確認できたため、これを利用した内視鏡的ネクロセクトミー(endoscopic necrosectomy:EN)を6回施行し壊死組織を除去、発熱は改善した。瘻孔は経皮的ドレナージにより結果的に経胃的となり、穿刺部が脆弱となったため形成されたと考えた。重症急性膵炎後のWONに対して、瘻孔を利用したENが感染コントロールに有用であった。(著者抄録)

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その他リンク： https://search.jamas.or.jp/index.php?module=Default&action=Link&pub_year=2018&ichushi_jid=J02150&link_issn=&doc_id=20181227060009&doc_link_id=issn%3D0912-0505%26volume%3D34%26issue%3D2%26spage%3D171&url=http%3A%2F%2Fwww.pieronline.jp%2Fopenurl%3Fissn%3D0912-0505%26volume%3D34%26issue%3D2%26spage%3D171&type=PierOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00005_2.gif

記述言語：日本語   出版者・発行元：新潟医学会  

近年、様々な疾患で体組成が病態や予後と関連していることが報告されている。我々の検討で、経動脈的治療を行った進行肝細胞癌症例のうち、骨格筋の6ヵ月間変化率が-4.6%未満の症例は予後不良であることが明らかとなった。また低皮下脂肪量も予後不良因子の一つであることを見出した。膵癌非切除例においては、内臓脂肪量が1ヵ月間で大きく減少した群で予後不良だった。進行消化器癌においては体組成、特にその変化率と予後が密接に関連していることが示唆された。(著者抄録)

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その他リンク： http://hdl.handle.net/10191/00051575

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記述言語：日本語   出版者・発行元：(株)癌と化学療法社  

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記述言語：日本語   出版者・発行元：(一社)日本消化器内視鏡学会  

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記述言語：日本語   出版者・発行元：(一財)日本消化器病学会  

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記述言語：日本語   出版者・発行元：(一財)日本消化器病学会  

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記述言語：英語   出版者・発行元：日本癌学会  

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記述言語：日本語   出版者・発行元：(NPO)日本高齢消化器病学会  

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：MOSBY-ELSEVIER  

DOI： 10.1016/j.gie.2017.03.161

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記述言語：日本語   出版者・発行元：(一社)日本内分泌学会  

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記述言語：日本語   出版者・発行元：(一社)日本消化器内視鏡学会  

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記述言語：日本語   出版者・発行元：(一社)日本消化器内視鏡学会  

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記述言語：日本語   出版者・発行元：(一財)日本消化器病学会  

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記述言語：日本語   出版者・発行元：(一財)日本消化器病学会  

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記述言語：日本語   出版者・発行元：(一財)日本消化器病学会  

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記述言語：日本語   出版者・発行元：(一財)日本消化器病学会  

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記述言語：日本語   出版者・発行元：(株)東京医学社  

筆者らは経口内視鏡的筋層切開術(POEM)から経口内視鏡的食道筋層生検術(POEM-b)の着想を得て、本法を食道アカラシアなどの食道運動障害に対して施行してきた。これにより、食道アカラシアの食道内圧所見・罹病期間と消化管ペースメーカ細胞であるCajal介在細胞の関係性について明らかになりつつある。また、jackhammer食道やnutcracker食道などの食道運動障害の一部に、食道筋層への好酸球浸潤を特徴とする疾患があることが明らかになり、好酸球性食道筋炎(EoEM)と命名し報告した。POEM-bにより得られた新しい知見を紹介する。(著者抄録)

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記述言語：日本語   出版者・発行元：一般社団法人 日本肝臓学会  

<p>Trousseau症候群は，Trousseauによって1865年に報告された，悪性腫瘍に合併する血栓症である．その脳卒中症状は，重篤な神経症状を呈し，直接的に生命予後に関与しうる傍悪性腫瘍症候群の一つとして認識されている．今回，胆管細胞癌に脳卒中症状を呈するTrousseau症候群を合併し死亡した2例を経験したので報告する．症例1は90歳，男性，症例2は58歳，女性でいずれの症例も生活習慣病の危険因子を有し，40 mm前後の肝腫瘍で初診，各種画像検査，胆汁細胞診，組織診にて胆管細胞癌の診断となった．経過中，腫瘍の急激な増大，胆道出血を合併し，本症候群を発症しやすい状況であった．担癌患者では，病態が急速に進行する場合，凝固線溶系の異常値などに留意し，抗凝固療法の開始を含む対応が本症候群の発症を予防し，原病に対する治療介入の機会を増やしうる方法論であると考え，報告する．</p>

DOI： 10.2957/kanzo.58.528

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その他リンク： http://search.jamas.or.jp/link/ui/2017404163

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：WILEY-BLACKWELL  

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記述言語：日本語   出版者・発行元：日本臨床外科学会  

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記述言語：日本語   出版者・発行元：(一財)日本消化器病学会  

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記述言語：日本語   出版者・発行元：(株)東京医学社  

生検を極めるには、スコープ操作や採取手技だけでなく、実際の内視鏡所見を踏まえて、どの場所から生検を採取すると、どのような組織像が得られるのかを予測しながら検査を行うトレーニングが必要である。内視鏡観察を疎かにして、診断を安易に生検に頼っていては、内視鏡検査をいくら行っても実力は身につかない。内視鏡診断力の向上のためには、生検を含めた病理組織診断に関する知識や理解も必要となる。生検後に動脈性出血をきたした経験もあり、緊急止血を含めた偶発症対策も欠かすことはできない。これらは、内視鏡を用いた各種治療手技を目指すための第一歩でもあり確実に習得したい。(著者抄録)

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記述言語：日本語   出版者・発行元：新潟医学会  

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その他リンク： http://search.jamas.or.jp/link/ui/2015374719

記述言語：日本語   出版者・発行元：(一社)日本消化器内視鏡学会  

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記述言語：日本語   出版者・発行元：(一社)日本消化器内視鏡学会  

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記述言語：日本語   出版者・発行元：(株)先端医学社  

ヘリコバクター・ピロリ感染胃炎に対して、除菌療法の保険診療が承認され、除菌治療を受ける患者は増加している。その一方、Helicobacter pylori除菌後の長期経過観察例も増加することになり、H.pylori除菌後胃癌が発見される症例が今後増加することが予想される。今回われわれは、除菌後に発見される胃癌は慢性胃炎像に類似した表面模様を呈することを示し、その発見および範囲決定が困難になっていることを提示した。除菌後胃癌の発見には、背景胃粘膜の萎縮の評価とともに、NBI拡大内視鏡を用いるなどして、通常より注意深い観察が必要となろう。(著者抄録)

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記述言語：日本語   出版者・発行元：新潟医学会  

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その他リンク： http://search.jamas.or.jp/link/ui/2016166709

記述言語：日本語   出版者・発行元：(株)癌と化学療法社  

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記述言語：日本語   出版者・発行元：(株)医学書院  

胃癌ESDを受けた500例を経過観察(中央値5.2年)し,119例(24%)に同時性多発癌,61例(12%)に異時性多発癌が発見された.異時性例に原病死はないが,3例はSM2であった.また,EMR/ESDを受けた524例においてH.pylori感染,時代背景(1990年代vs.2000年代),背景粘膜萎縮,同時多発,性別などの因子別に異時性多発癌累積発見率を検討した.同時多発例と男性から高率に異時多発癌が発見され,H.pylori陰性例からの発見は陽性例と同等であった.発癌を認めた胃炎粘膜からは,同時・異時合わせて30%以上の多発癌が発生することを念頭に置き,ESDの前後には慎重な内視鏡観察が必要である.(著者抄録)

DOI： 10.11477/mf.1403200031

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記述言語：日本語   出版者・発行元：新潟医学会  

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その他リンク： http://search.jamas.or.jp/link/ui/2015093998

記述言語：日本語   出版者・発行元：(一社)日本血液学会-東京事務局  

消化管出血症状が著明な全身性ALアミロイドーシスに対してボルテゾミブが著効した貴重な症例を報告する。83歳女性。食欲不振を主訴に受診し,上部消化管内視鏡検査で多発胃潰瘍と診断された。病理組織学的検査でALアミロイドの沈着が証明され,精査加療目的に入院した。皮膚生検でもアミロイドの沈着が証明され,またIgG-λ型Mタンパク血症を有し,全身性・原発性ALアミロイドーシスと診断された。心筋,膀胱,下部消化管へのアミロイドの沈着も疑われたが,止血困難な胃粘膜出血,皮下出血斑,血尿と出血症状が著しく,侵襲的な全身検索は施行できなかった。ボルテゾミブ・デキサメタゾンを用いた治療を開始し,全身の出血症状は軽快した。治療継続1年後には明らかな出血症状は認めないものの,病理組織学的検査で胃粘膜と皮下に依然としてアミロイドの沈着を認めた。(著者抄録)

DOI： 10.11406/rinketsu.55.808

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その他リンク： https://search.jamas.or.jp/index.php?module=Default&action=Link&pub_year=2014&ichushi_jid=J01540&link_issn=&doc_id=20140807410013&doc_link_id=130004678959&url=http%3A%2F%2Fci.nii.ac.jp%2Fnaid%2F130004678959&type=CiNii&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00003_1.gif

記述言語：日本語   出版者・発行元：(一財)日本消化器病学会  

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記述言語：日本語   出版者・発行元：新潟医学会  

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その他リンク： http://search.jamas.or.jp/link/ui/2014205749

記述言語：日本語   出版者・発行元：新潟県医師会  

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記述言語：日本語   出版者・発行元：新潟医学会  

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その他リンク： http://search.jamas.or.jp/link/ui/2014161036

記述言語：日本語   出版者・発行元：新潟医学会  

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その他リンク： http://search.jamas.or.jp/link/ui/2014161058

記述言語：日本語   出版者・発行元：新潟医学会  

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その他リンク： http://search.jamas.or.jp/link/ui/2014161041

記述言語：日本語   出版者・発行元：新潟医学会  

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その他リンク： http://search.jamas.or.jp/link/ui/2014161046

記述言語：日本語   出版者・発行元：新潟医学会  

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その他リンク： http://search.jamas.or.jp/link/ui/2014161045

記述言語：日本語   出版者・発行元：(一財)日本消化器病学会  

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記述言語：日本語   出版者・発行元：(一財)日本消化器病学会  

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記述言語：日本語   出版者・発行元：新潟医学会  

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J-GLOBAL

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その他リンク： http://search.jamas.or.jp/link/ui/2012333994

記述言語：日本語   出版者・発行元：(株)癌と化学療法社  

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記述言語：日本語   出版者・発行元：新潟医学会  

症例は50歳代男性。1995年より他院にてアルコール性慢性膵炎の診断で経過観察中であった。2010年の腹部CTで膵石以外に、膵周囲の被膜様構造を伴う膵全体の腫大と、血中IgG4の上昇を認め、自己免疫性膵炎を疑った。内視鏡的逆行性胆管膵管造影で膵管は膵石による透亮像とその尾側膵管の拡張を認めたのみで、自己免疫性膵炎に特徴的な膵管狭細像は得られなかった。ERP施行時に十二指腸主乳頭の腫大を認め、生検でIgG4陽性形質細胞の浸潤を確認し、自己免疫性膵炎と確定診断した。AIPの診断のもとステロイド治療により、十二指腸乳頭部の腫大と血液データの改善を認めた。膵石合併により膵管像の評価ができない場合も、十二指腸乳頭の詳細な観察と生検が自己免疫性膵炎の診断に有用であることが示唆された。(著者抄録)

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記述言語：日本語   出版者・発行元：新潟医学会  

症例は50歳代男性. 1995年より他院にてアルコール性慢性腸炎の診断で経過観察中であった. 2010年の腹部CTで膵石以外に, 膵周囲の被膜様構造を伴う膵全体の腫大と, 血中IgG4の上昇を認め, 良己免疫性膵炎を疑った. 内視鏡的逆行性胆管膵管造影で膵管は膵石による透亮像とその尾側膵管の拡張を認めたのみで, 自己免疫性膵炎に特徴的な膵管狭細像は得られなかった. ERP施行時に十二指腸主乳頭の腫大を認め, 生検でIgG4陽性形質細胞の浸潤を確認し, 自己免疫性膵炎と確定診断した. AIPの診断のもとステロイド治療により, 十二指腸乳頭部の腫大と血液データの改善を認めた. 膵石合併により膵管像の評価ができない場合も, 十二指腸乳頭の詳細な観察と生検が自己免疫性膵炎の診断に有用であることが示唆された.

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その他リンク： http://hdl.handle.net/10191/29182

記述言語：日本語   出版者・発行元：新潟医学会  

Globin transcription factor 2 (GATA-2) は造血細胞, 神経細胞, 泌尿生殖器細胞, 血管内皮細胞などに発現する転写調節因子 GATA family の一員である. 本研究では新たに作成された抗ヒトGATA-2抗体を用いて免疫組織学的染色を行い, ヒト成人において骨髄の前赤芽球, 骨髄芽球, 末梢血の肥満細胞, 血管内皮, 腎遠位尿細管上皮にGATA-2の発現を認めた. ヒト胎児では血管内皮, 副腎, 腎臓, 肝内造血細胞, 中枢神経細胞にGATA-2の発現を認めた. 神経芽腫ではロゼット構造をなす円形細胞の核にGATA-2の発現が高く, 分化が進んだ細線維型細胞ではGATA-2の発現は低下する傾向が強いことから, GATA-2の発現は予後を予想する因子となる可能性が示唆された. また, 4種の神経芽腫細胞株 (SH-SY5Y, GOTO, IMR-32, NB-1) の蛍光染色では核にGATA-2の発現を認めたが, GATAS-2発現のもっとも強いSH-SY5Yはオールトランスレチノイン酸を用いた分化誘導によって, GATA-2の蛋白とmRNAの発現は変化せず, 神経芽腫における分化度とGATA-2の発現の関係を再現することはできなかった. 本抗体を用いた免疫染色は神経芽腫の診断及び神経細胞や血球の分化の解析に有用と思われる.

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その他リンク： http://hdl.handle.net/10191/29184

記述言語：日本語   出版者・発行元：(株)癌と化学療法社  

J-GLOBAL

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記述言語：日本語   出版者・発行元：(一社)日本病理学会  

J-GLOBAL

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記述言語：日本語   出版者・発行元：(一社)日本病理学会  

J-GLOBAL

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記述言語：日本語   出版者・発行元：(一社)日本肝臓学会  

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記述言語：日本語   出版者・発行元：(一社)日本農村医学会  

DOI： 10.14879/nnigss.56.0.317.0

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記述言語：日本語   出版者・発行元：(一社)日本透析医学会  

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