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Dive into the research topics where Kazuya Miyoshi is active.

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Featured researches published by Kazuya Miyoshi.


Journal of Japanese Society for Dialysis Therapy | 1993

Bone metabolism on long-term follow-up after total parathyroidectomy with autotransplantation.

Shinji Takasu; Yoshiaki Kokumai; Susumu Uchida; Shigeko Takatsu; Masato Kodera; Shigehiro Shiozaki; Masashi Miyazaki; Kazuya Miyoshi; Shinichiro Tanaka; Kenichi Sakagami; Kunzo Orita

二次性副甲状腺機能亢進症による腎性骨異栄養症 (ROD) に対して上皮小体全摘一部自家移植術 (PTX-AT) が行われているが, 術後3年以上の遠隔期における骨代謝, 骨所見に関する報告は少ない. 過去8年で38例に, PTX-ATを施行した. このうち術後3年以上経過した27症例について骨代謝の生化学的指標と, 全身骨X線所見について検討した. 透析歴は120-235か月 (平均181.1±30.7か月), PTX-AT後36-89か月 (平均61.9±11.9か月) を経過していた. C-PTHは術直後より減少し, 術後3年で5ng/ml以下のものは22例で, 残り5例中4例は術後もほとんど減少せず, その後の検査で残存副甲状腺を確認した. 骨新生の指標となるオステオカルシンを, 術後症例 (PTX-AT群) とC-PTH 10ng/ml以上の二次性副甲状腺機能亢進症例 (2°HPT群) で比較検討すると, PTX-AT群 (n=26) は平均106.9±98.7ng/ml, 2°HPT群 (n=27) は平均230.9±157.9ng/mlで, 有意にPTX-AT群が低値を示した (p<0.005). また, PTX-AT群では100ng/ml以下のものは19例でその全例がC-PTH 5ng/ml以下であった. 100ng/ml以上の8例は, 2°HPT群と有意差を認めなかった. さらに, 両群においてオステオカルシンとC-PTHは正の相関が認められた (p=0.05). 全身骨X線所見を1. 手指骨 (Tuft resorption, TR), 2. 頭蓋骨 (Salt and pepper, SP), 3. 腰椎 (Rugger jersey, RJ) の骨吸収像に分けてPTX-AT前後で比較検討した.1) TR (n=23): 悪化例0, 不変例2, 改善例21, 2) SP (n=21): 悪化例0, 不変例1, 改善例20, 3) RJ (n=21): 悪化例1, 不変例10, 改善例10.以上より, PTX-ATにより手指骨, 頭蓋骨は著明に改善するが, 腰椎は半数が不変であり改善傾向が少なかった. また, 術後持続副甲状腺機能亢進症を呈する症例では, 骨所見改善に乏しく, 骨代謝の生化学的指標のC-PTH, オステオカルシンと骨所見は相関するものと考えられた.


Transplant International | 1992

Ex vivo perfusion of canine pancreaticoduodenal allografts using class-II-specific monoclonal antibody delays the onset of acute rejection

Kazuya Miyoshi; Sakagami K; Kunzo Orita

In the following study, we investigated whether ex vivo perfusion of canine pancreaticoduodenal allografts prior to transplantation using a class-II-specific monoclonal antibody (MoAb) OKIa1) could prevent acute rejection. Untreated grafts were rejected within 6 days after transplantation, and all of these recipients suffered severe hyperglycemia. In contrast, in recipients who received grafts which underwent ex vivo class-II-specific MoAb perfusion treatment, the mean urinary amylase levels were sustained significantly higher (11,733 +/- 4493 vs. 3274 +/- 2108 U/L on day 7, P < 0.005), and mean fasting blood glucose (FBG) levels remained within the normal range (13.4 +/- 5.8 vs. 23.4 +/- 3.9 mM on day 7, P < 0.0005). Low doses of cyclosporin A (CsA) were necessary in order to maintain lower FBG levels. Histopathology analysis on day 7 after transplantation showed that endotheliitis and necrosis were much less prominent in the MoAb-treated grafts. In the light of our results, we conclude that ex vivo perfusion of canine pancreaticoduodenal allografts using a class-II-specific MoAb is effective in delaying the onset of acute rejection, and low doses of CsA could extend this effect.


Nihon Rinsho Geka Gakkai Zasshi (journal of Japan Surgical Association) | 2005

A CASE REPORT OF SUPERIOR MESENTERIC ARTERY SYNDROME AFTER OPERATION OF COLON CANCER

Shinya Otsuka; Ryousuke Yoshida; Kazuya Miyoshi; Masaru Inagaki; Sadanori Fuchimoto; Masahito Yumura


Transplantation | 1991

The effect of ex vivo perfusion of the liver with anti-class II antibody on acute rejection in canine liver transplantation

Kurozumi Y; Kenichi Sakagami; Shinji Takasu; Minoru Haisa; Toshihiko Oiwa; Hideaki Hasuoka; Takahito Yagi; Sinya Saito; Masaru Inagaki; Takefumi Niguma; Kazuya Miyoshi; Naoya Kobayashi; Takuzo Fuziwara; Satosi Kusaka; Junji Matuoka; Kunzo Orita


Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 2000

Evaluation of Jejunal Pouch Reconstruction after Total Gastrectomy.

Kazuya Miyoshi; Sadanori Fuchimoto; Toshihide Ohsaki; Tatsuhiko Sakata; Isao Takeda; Kenji Takahashi; Takaomi Ohkawa; Toshihiro Murata; Kimiaki Tanaka; Norihisa Takakura


Jpn J Gastroenterol Surg, Nihon Shokaki Geka Gakkai zasshi | 1995

A Survived Case of Acute Mesenteric Artery Occlusion with Hepatic Portal Venous Gas.

Kazuya Miyoshi; Takeshi Matsui; Junichi Gangi; Toshihiko Waku; Kunzo Orita


Transplantation Proceedings | 1991

Correlation between microvascular damage and hepatic clearance in swine liver transplantation

Shinji Takasu; Kenichi Sakagami; Toshihiko Oiwa; Hideaki Hasuoka; Masaru Inagaki; Kurozumi Y; Yagi T; Kazuya Miyoshi; Matsuoka J; Kusaka S


Kanzo | 2005

A Case of Intractable Hepatic Hydrothorax treated by Pleuro-Venous Shunt

Masaru Inagaki; Syunsuke Tanabe; Ryousuke Yoshida; Norifumi Ariki; Yousuke Tsunemitsu; Shinya Otsuka; Kazuya Miyoshi; Toshihide Osaki; Sadanori Fuchimoto; Masahito Yumura; Keisuke Hori; Jun Tomoda


Asian Society of Transplantation-International congress | 1992

Abdominal organ cluster transplantation in pigs receiving FK 506

Naoya Kobayashi; Kenichi Sakagami; T. Yagi; Kazuya Miyoshi; H. Nagakawa; Y. Takaishi; K. Tanakaya; S. Saito; Shinji Takasu; Tsuyoshi Matsuno; Kunzo Orita


Nihon Nyugan Kenshin Gakkaishi (journal of Japan Association of Breast Cancer Screening) | 2018

Analysis of mammary microcalcifications diagnosed using stereotactic vacuum-assisted breast biopsies

Kazuya Miyoshi; Hirotoshi Takahashi; Tomio Nakagawa; Tsunehisa Nomura

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