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Dive into the research topics where Kenichi Shikata is active.

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Featured researches published by Kenichi Shikata.


Journal of Diabetic Complications | 1991

Changes in glomerular extracellular matrices components in diabetic nephropathy

Shuji Ikeda; Hirofumi Makino; Toshinori Haramoto; Kenichi Shikata; Isao Kumagai; Zensuke Ota

The changes in glomerular extracellular matrices components in diabetic nephropathy were investigated. Indirect immunofluorescence staining, using polyclonal antibodies to heparan sulfate proteoglycan (HS-PG), laminin, type IV collagen, and fibronectin was carried out on renal specimens obtained by needle biopsy. Immunofluorescence intensity and distribution were observed. HS-PG and laminin decreased in the capillary walls; on the other hand, type IV collagen and fibronectin tended to increase in the mesangial area. HS-PG and laminin decreased in inverse proportion to sclerosis grades and proteinuria. These changes seemed to play an important role in progression of diabetic glomerulosclerosis.


Journal of Japanese Society for Dialysis Therapy | 1993

Study on changes in plasma vitronectin levels during hemodialysis.

Yoshio Nagake; Jun Wada; Hirofumi Makino; Kenichi Shikata; Isao Kumagai; Toshie Awata; Shigeru Morioka; Toshio Ogura; Zensuke Ota

血漿vetronectin (VN) 値は, 血液透析患者では低値を示すが, 透析歴が長くなるほど, より低値を示すことが知られている. そこで, 今回我々は, 同一患者に対し, regenerated cellulose (RC膜), cellulose triacetate膜 (CTA膜), polysulfone膜 (PS膜) の3種類の透析膜を順次変えて血液透析を施行し, その際の血漿VN値の変動を測定することにより, これらの透析膜で血漿VN値の変動に有意な変化があるか否かを検討した. また, 抗凝固剤としてのheparinの影響の有無を検討するため, 抗凝固剤として, heparinを使用した時とnafamostat mesilate (NM) を使用した時の, 血漿VN値の変動を比較検討した.その結果, すべての膜において, 透析開始前の血漿VN値は, 正常値より低値を示した. 血漿VN値の変動では, RC膜のみ有意な変化を認め, 透析開始後15分の血漿VN値が, 開始前に比べ有意に低値を示したが, CTA膜, PS膜には, 有意な変動を認めなかった. 従って, 使用している透析膜の種類により補体活性化の程度が異なり, VNの消費の程度が異なってくることが示唆された. また, 抗凝固剤による検討では, すべての膜において, heparin使用時とNM使用時とでは, 血漿VN値の変動に関し有意差を認めなかったため, VNがheparinと結合することによりVNが消費されるという説を支持する結果は得られなかった.


Archive | 1997

Preparation for prophylaxis or treatment of renal diseases containing sulfated polysaccharide

Kazuo Akima; Kenichi Shikata; Hirofumi Makino; Zensuke Ota; Kyoji Hirata; Masayuki Miyasaka; Yasuo Suzuki


Connective tissue | 1990

Changes in glomerular basement membrane components in diabetic nephropathy

Shuji Ikeda; Toshinori Haramoto; Kenichi Shikata; Isao Kumagai; Hirofumi Makino; Zensuke Ota


日本骨形態計測学会雑誌 = Journal of Japanese Society of Bone Morphometry | 1998

The Speed of Sound Waves Propagating along the Tibial Bone in Patients with Non-Insulin-Dependent Diabetes Mellitus

Nobuyuki Miyatake; Kenichi Shikata; Kayo Takahashi; Hisao Suzuki; Jun Wada; Mie Kunitomi; Koji Yamamoto; Mutsumi Matsueda; Hirofumi Makino


Jpn J Nephrol | 1997

Study on coagulation and fibrinolytic systems in predialysis patients with chronic renal failure. Comparison between patients with chronic glomerulonephritis and patients with diabetic nephropathy.:—Comparison between patients with chronic glomerulonephritis and patients with diabetic nephropathy—

Yoshio Nagake; Hirofumi Makino; Noriaki Yorioka; Shinsuke Nomura; Gengo Osawa; Michio Yamakido; Hironaka Kawasaki; Yuzuru Kato; Masunori Matsuzaki; Kenichi Shikata; Jiro Uemasu; Hajime Somiya; Zenzo Fujii; Shigeaki Hayashida; Takahito Nasu; Yasuhiko Oyabub; Yutaka Nitta; Hideki Kawanishi; Koji Usui; Kenta Fujiwara; Norihisa Takasugi; Koji Kanehara; Naoki Hamaguchi; Isao Kumagai; Haruo Ichikawa; Maki Takahashi; Hiroyuki Omori; Katsuhiko Arimoto; Yasuaki Mino; Kenji Kawabata


Connective tissue | 1992

Glomerular basement membrane meshwork structure of type IV collagen after SDS and mercaptoethanol treatment

Kenichi Shikata; Makino H; Toshinori Haramoto; Yoshiko Hayashi; Zensuke Ota


Connective tissue | 1992

Immunohistochemical study of vitronectin and membrane attack complex in normal and diseased renal tissues

Jun Wada; Makino H; Kenichi Shikata; Shigeru Morioka; Zensuke Ota


Connective tissue | 1992

Distribution of a novel chain of basement membrane associated-collagen in the renal tissue

Hirofumi Makino; Toshinori Haramoto; Kenichi Shikata; Kyoji Hirata; Jun Wada; Shigeru Morioka; Zensuke Ota; T. Yoshida; Toshihiko Hayashi


Connective tissue | 1991

Serum and urinary concentrations of type IV collagen in the patients with renal diseases

Yoshiko Hayashi; Makino H; Kenichi Shikata; Zensuke Ota

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