Updated on 2024/11/10

写真a

 
RIYU Nanki
 
Organization
Academic Assembly Institute of Medicine and Dentistry IGAKU KEIRETU Assistant Professor
Faculty of Medicine School of Medicine Assistant Professor
Graduate School of Medical and Dental Sciences Biological Functions and Medical Control Regenerative and Transplant Medicine Assistant Professor
Title
Assistant Professor
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Degree

  • 医科学修士学位 ( 2017.3   高知大学 )

Research History

  • Niigata University   Institute of Medicine and Dentistry, Academic Assembly   Assistant Professor

    2024.4

  • Niigata University   Regenerative and Transplant Medicine, Biological Functions and Medical Control, Graduate School of Medical and Dental Sciences   Assistant Professor

    2024.4

  • Niigata University   School of Medicine, Faculty of Medicine   Assistant Professor

    2024.4

  • Niigata University   Institute of Medicine and Dentistry, Academic Assembly   Specially Appointed Assistant Professor

    2022.10 - 2024.3

  • Niigata University   Graduate School of Medical and Dental Sciences   Specially Appointed Assistant Professor

    2022.10 - 2024.3

  • Niigata University   Institute of Medicine and Dentistry, Academic Assembly   Specially Appointed Assistant

    2021.10 - 2022.9

  • Niigata University   Graduate School of Medical and Dental Sciences   Specially Appointed Assistant

    2021.10 - 2022.9

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Papers

  • Mental construction of object symbols from meaningless elements by Japanese macaques (Macaca fuscata). International journal

    Nanxi Liu, Atsuhiko Iijima, Yutaka Iwata, Kento Ohashi, Nobuyoshi Fujisawa, Toshikuni Sasaoka, Isao Hasegawa

    Scientific reports   12 ( 1 )   3566 - 3566   2022.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    When writing an object's name, humans mentally construct its spelling. This capacity critically depends on use of the dual-structured linguistic system, in which meaningful words are represented by combinations of meaningless letters. Here we search for the evolutionary origin of this capacity in primates by designing dual-structured bigram symbol systems where different combinations of meaningless elements represent different objects. Initially, we trained Japanese macaques (Macaca fuscata) in an object-bigram symbolization task and in a visually-guided bigram construction task. Subsequently, we conducted a probe test using a symbolic bigram construction task. From the initial trial of the probe test, the Japanese macaques could sequentially choose the two elements of a bigram that was not actually seen but signified by a visually presented object. Moreover, the animals' spontaneous choice order bias, developed through the visually-guided bigram construction learning, was immediately generalized to the symbolic bigram construction test. Learning of dual-structured symbols by the macaques possibly indicates pre-linguistic adaptations for the ability of mentally constructing symbols in the common ancestors of humans and Old World monkeys.

    DOI: 10.1038/s41598-022-07563-z

    PubMed

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  • Protective effects of the selective alpha1A-adrenoceptor antagonist silodosin against cyclophosphamide-induced cystitis in rats.

    Nanxi Liu, Shogo Shimizu, Takahiro Shimizu, Kumiko Nakamura, Masaki Yamamoto, Youichirou Higashi, Motoaki Saito

    Journal of pharmacological sciences   132 ( 1 )   71 - 77   2016.9

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    Language:English   Publishing type:Research paper (scientific journal)  

    We investigated the protective effects of a selective α1A-adrenoceptor antagonist, silodosin (Silod) on urinary bladder function in cyclophosphamide (CYP)-induced cystitis rats, with and without desensitization of the capsaicin (CAP)-sensitive afferent nerve pathway. Male Wistar rats (310-400 g) were pretreated with Silod (0, 100, or 300 μg/kg/day, p.o.) for 1 week before cystometry, and were administered either CYP (150 mg/kg, i.p.) or saline 2 days before the experiment. In another experiment, the rats were treated with CAP (125 mg/kg, s.c.) 4 days before the cystometry. The rat bladders were harvested, weighed, and evaluated histologically. The cystometric evaluation showed significant reductions in the intercontraction interval (ICI), single voided volume (SVV), and bladder compliance in CYP-treated rats compared to those in the vehicle-treated rats. High-dose Silod or CAP treatment significantly increased the ICI and SVV in the CYP rats. However, high-dose Silod treatment did not increase the ICI and SVV in CAP-treated CYP rats. Treatment with Silod did not improve the bladder weight, edema, and leukocyte infiltration resulting from the CYP-induced bladder inflammation. These data suggest that blockade of α1-adrenoceptors by Silod inhibited the CAP-sensitive afferent pathway in rats with cystitis.

    DOI: 10.1016/j.jphs.2016.08.007

    PubMed

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Teaching Experience

  • 生理学実習

    2024
    Institution name:新潟大学