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Dive into the research topics where Yasuhisa Matsushima is active.

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Featured researches published by Yasuhisa Matsushima.


Neuroendocrinology | 1979

Effect of Hypophysectomy and Growth Hormone Administration on Somatostatin Content in the Rat Hypothalamus

Azuma Kanatsuka; Hideichi Makino; Yasuhisa Matsushima; Masaaki Osegawa; Masahiro Yamamoto; Akira Kumagai

The effect of hypophysectomy and bovine GH administration on somatostatin (SRIF) content in the rat hypothalamus was investigated. SRIF content was determined by a specific radioimmunoassay method described elsewhere. The total SRIF content of the rat hypothalamus as well as its content per milligram wet weight had decreased 4 weeks after hypophysectomy but was restored significantly in those rats which were subjected to bovine GH administration for 7 days 3 weeks after hypophysectomy. Furthermore, in nonoperated rats, increase of hypothalamic SRIF content was observed after 7 days GH administration. These results indicate that growth hormone may influence the SRIF content of hypothalamus and it seems likely that a feedback mechanism between pituitary GH and hypothalamic SRIF exists.


Endocrinology | 1979

Changes in pancreatic somatostatin content in spontaneously diabetic mice, as determined by radioimmunoassay and immunohistochemical methods.

Hideichi Makino; Yasuhisa Matsushima; Azuma Kanatsuka; Masahiro Yamamoto; Akira Kumagai; Masahiko Nishimura


Endocrinologia Japonica | 1977

Effect of streptozotocin administration on somatostatin content of pancreas and hypothalamus in rats.

Hideichi Makino; Azuma Kanatsuka; Yasuhisa Matsushima; Masahiro Yamamoto; Akira Kumagai; Noboru Yanaihara


Endocrinology | 1981

Effect of Glucose on Somatostatin Secretion from Isolated Pancreatic Islets of Normal and Streptozotocin- Diabetic Rats*

Azuma Kanatsuka; Hideichi Makino; Yasuhisa Matsushima; Masaaki Osegawa; Junji Kasanuki; Morihiro Miyahira; Masahiro Yamamoto; Akira Kumaga


Endocrinology | 1981

Effect of Calcium on the Secretion of Somatostatin and Insulin from Pancreatic Islets

Azuma Kanatsuka; Hideichi Makino; Yasuhisa Matsushima; Junji Kasanuki; Masaaki Osegawa; Akira Kumagai


Endocrinologia Japonica | 1977

Increase of Somatostatin Concentration in Rat Pancreas after Hypophysectomy

Azuma Kanatsuka; Hideichi Makino; Yasuhisa Matsushima; Masahiro Yamamoto; Akira Kumagai; Noboru Yanaihara


Endocrinologia Japonica | 1981

Effect of Hypophysectomy and Growth Hormone Administration on Somatostatin and Gastrin Content in the Stomach of Rats

Junji Kasanuki; Hideichi Makino; Yasuhisa Matsushima; Azuma Kanatsuka; Morihiro Miyahira; Yoshitaka Tokumasa; Akira Kumagai


Endocrinologia Japonica | 1975

Effects of ACTH, dexamethasone, adrenalectomy and stress on cAMP content of adenohypophysis and adrenals in rats.

Hideichi Makino; Michiko Masaka; Yasuhisa Matsushima; Azuma Kanatsuka; Masahiro Yamamoto; Akira Kumagai


Folia Endocrinologica Japonica | 1978

The effect of ritalin cb 154 and various drugs on serum growth hormone in acromegalics

Azuma Kanatsuka; Hideichi Makino; Yasuhisa Matsushima; Masaaki Osegawa; Masahiro Yamamoto; Akira Kumagai


Folia Endocrinologica Japonica | 1976

Results of Treatment in 320 Patients with Cushing's Syndrome in Japan

Akira Kumagai; Masahiro Yamamoto; Yutaka Suzuki; Yasuhisa Matsushima; Yasushi Tamura; Tetsuo Nishikawa

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