CVClient

山岸 喜彰

ヤマギシ ヨシアキ  (Yamagishi Yoshiaki)

基本情報

所属
武蔵野大学 薬学部 薬学科 助教

J-GLOBAL ID
201701019472152398
researchmap会員ID
B000277381

論文

 13
  • Kenjiro Okubo, Toshiyuki Kudo, Sae Yoshihara, Yu Nakabayashi, Kana Nakauchi, Akimi Tanaka, Moe Saito, Ayumi Tsujisawa, Hitomi Goda, Yoshiaki Yamagishi, Chinatsu Otake, Kosho Makino, Hideyo Takahashi, Kiyomi Ito
    Drug Metabolism and Pharmacokinetics 54 100537-100537 2024年2月  
  • Yoshiaki Yamagishi, Rei Saiki, Takeshi Yoshimi, Toshiyuki Kudo, Kiyomi Ito
    Nutrients 13(9) 2021年9月21日  
    We have previously shown that two enteral nutrition formulas suppressed gastric lesions induced by the oral administration of indomethacin (IND) in mice. However, the mechanism of their protective effect is unknown. In this study, the effect of the two enteral nutrition formulas on gastric lesions induced by subcutaneous IND injection was investigated, with the objective of exploring the possibility that they may interact directly with IND in the gastrointestinal tract. Ten-week-old, male, ICR mice were fasted, then orally given either purified water, Mermed® One, or 2-fold diluted Terumeal® 2.0α as enteral nutrition formula (25 mL/kg). IND was injected subcutaneously at 20 mg/kg after 30 min, and the stomach was removed 6 h later and fixed in formalin. The number and area of lesions in the stomachs of mice given enteral nutrition formula was reduced to 56-89% and 34-61%, respectively, compared with the mice given purified water. The time courses of plasma IND concentrations were comparable among the three groups. These results suggested that the effect of these enteral nutrition formulas on gastric lesions did not originate from their direct interaction with IND in the gastrointestinal tract or their effect on the disposition of IND.
  • Yoshiaki Yamagishi, Toshiyuki Kudo, Masafumi Oyumi, Yusuke Sakamoto, Kazuki Takahashi, Taiki Akashi, Shohei Kobayashi, Takeaki Kawakami, Hitomi Goda, Yasuhiro Sato, Masakazu Mimaki, Hiroko Kodama, Mitsutoshi Munakata, Kosho Makino, Hideyo Takahashi, Toshiro Fukami, Kiyomi Ito
    Pharmaceutical research 38(8) 1335-1344 2021年8月  
    PURPOSE: Menkes disease is a rare hereditary disease in which systemic deficiency of copper due to mutation of the ATP7A gene causes severe neurodegenerative disorders. The present parenteral drugs have limited efficacy, so there is a need for an efficacious drug that can be administered orally. This study focused on glyoxal-bis (N(4)-methylthiosemicarbazonato)-copper(II (CuGTSM), which has shown efficacy in macular mice, a murine model of Menkes disease, and examined its pharmacokinetics. In addition, nanosized CuGTSM (nCuGTSM) was prepared, and the effects of nanosizing on CuGTSM pharmacokinetics were investigated. METHODS: CuGTSM or nCuGTSM (10 mg/kg) was administered orally to male macular mice or C3H/HeNCrl mice (control), and plasma was obtained by serial blood sampling. Plasma concentrations of CuGTSM and GTSM were measured by LC-MS/MS and pharmacokinetic parameters were calculated. RESULTS: When CuGTSM was administered orally, CuGTSM and GTSM were both detected in the plasma of both mouse strains. When nCuGTSM was administered, the Cmax was markedly higher, and the mean residence time was longer than when CuGTSM was administered for both CuGTSM and GTSM in both mouse strains. With macular mice, the AUC ratio (GTSM/CuGTSM) was markedly higher and the plasma CuGTSM concentration was lower than with C3H/HeNCrl mice when either CuGTSM or nCuGTSM was administered. CONCLUSION: Absorption of orally administered CuGTSM was confirmed in macular mice, and the nano-formulation improved the absorption and retention of CuGTSM in the body. However, the plasma concentration of CuGTSM was lower in macular mice than in control mice, suggesting easier dissociation of CuGTSM.
  • Takeshi Yoshimi, Yoshiaki Yamagishi, Issei Kanegawa, Megumi Suda, Rei Saiki, Ken-ichiro Tanaka, Hitomi Goda, Toshiyuki Kudo, Kiyomi Ito
    Nutrients 11(12) 3058-3058 2019年12月14日  査読有り
    We investigated the effects of enteral nutrition formula on non-steroidal anti-inflammatory drug (NSAID)-induced gastric lesions in mice. Male ICR mice aged 7–9 weeks old were fasted, then orally given either purified water, Mermed® One, or 2-fold diluted Terumeal® 2.0α as enteral nutrition (25 or 50 mL/kg each). Indomethacin (IND) was orally administered at 20 mg/kg after 30 min, and the stomach was removed 6 h later and fixed in formalin. The number and area of lesions in the stomachs of the mice given enteral nutrition showed a significant, dose-dependent decrease compared to the purified water-treated group, and no significant difference was seen between the two enteral nutrition-treated groups. Comparable time courses of plasma IND concentrations suggest that enteral nutrition does not inhibit gastrointestinal absorption of IND. Our findings indicate that administering enteral nutrition could inhibit the onset of NSAID-induced gastric ulcers.
  • Satoshi Nagamata, Taiki Aoshi, Akiko Kawabata, Yoshiaki Yamagishi, Mitsuhiro Nishimura, Soichiro Kuwabara, Kouki Murakami, Hideto Yamada, Yasuko Mori
    Scientific reports 9(1) 3911-3911 2019年3月7日  
    The identification of Human herpesvirus 6B (HHV-6B) epitopes that are recognized by T-cells could contribute to the development of potential vaccines and immunotherapies. Here, we identified CD4+ and H-2Kd-restricted CD8+ T-cell epitopes on the glycoprotein Q1 of HHV-6B (BgQ1), which is a unique glycoprotein and essential for HHV-6B viral entry, by using in vivo electroporation with a plasmid DNA encoding BgQ1, overlapping peptides spanning the BgQ1 sequence, ELISPOT assay for quantification of gamma interferon (IFN-γ), and computer-based T-cell epitope prediction programs. The CD4+ and CD8+ T-cell epitopes identified in BALB/c mice in this study could be a good animal model system for use in the development of T-cell responses, inducing HHV-6B vaccines or immunotherapies.

書籍等出版物

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共同研究・競争的資金等の研究課題

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