Publication


Featured researches published by Hiroomi Yokoyama.


Endocrinologia Japonica | 1979

Stimulation of pituitary-adrenocortical system by ginseng saponin.

Susumu Hiai; Hiroomi Yokoyama; Hikokichi Oura; Saburo Yano


Chemical & Pharmaceutical Bulletin | 1981

Stimulation of the Pituitary-adrenocortical Axis by Saikosaponin of Bupleuri Radix

Susumu Hiai; Hiroomi Yokoyama; Tetsuro Nagasawa; Hikokichi Oura


Endocrinologia Japonica | 1979

Features of ginseng saponin-induced corticosterone secretion.

Susumu Hiai; Hiroomi Yokoyama; Hikokichi Oura


Chemical & Pharmaceutical Bulletin | 1983

Evaluation of Corticosterone Secretion-inducing Activities of Ginsenosides and Their Prosapogenins and Sapogenins

Susumu Hiai; Hiroomi Yokoyama; Hikokichi Oura; Yuji Kawashima


Chemical & Pharmaceutical Bulletin | 1981

Chemical Structures and Corticosterone Secretion-inducing Activities of Saikosaponins

Hiroomi Yokoyama; Susumu Hiai; Hikokichi Oura


Yakugaku Zasshi-journal of The Pharmaceutical Society of Japan | 1982

桔梗総サポニンならびにそのProsapogenin Methyl Estersのラット血漿コルチコステロン分泌促進活性

Hiroomi Yokoyama; Susumu Hiai; Hikokichi Oura


Chemical & Pharmaceutical Bulletin | 1981

Effect of Escin on Adrenocorticotropin and Corticosterone Levels in Rat Plasma

Susumu Hiai; Hiroomi Yokoyama; Hikokichi Oura


Chemical & Pharmaceutical Bulletin | 1984

Effect of saikosaponins on dexamethasone suppression of the pituitary-adrenocortical system.

Hiroomi Yokoyama; Susumu Hiai; Hikokichi Oura


Chemical & Pharmaceutical Bulletin | 1987

Effect of Chronic Treatment with Saikosaponin d and Dexamethasone on Responsiveness of Pituitary and Adrenal Cortex and Adrenal Weight in Rats

Susumu Hiai; Hiroomi Yokoyama


Yakugaku Zasshi-journal of The Pharmaceutical Society of Japan | 1982

Effects of total saponins extracted from several crude drugs on rat adrenocortical hormone secretion

Hiroomi Yokoyama; Susumu Hiai; Hikokichi Oura; Teruaki Hayashi

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