Showing papers on "Isopimpinellin published in 1982"

Effects of various coumarins from roots of Angelica dahurica on actions of adrenaline, ACTH and insulin in fat cells.

Abstract: Experiments were carried out on the effects of various coumarins on the actions of adrenaline, adrenocorticotropic hormone (ACTH) and insulin in fat cells isolated from rats. Furocoumarins such as oxypeucedanin hydrate, bergapten, xanthotoxin, imperatorin, phellopterin activated adrenaline-induced lipolysis. Furocoumarins such as oxypeucedanin hydrate, imperatorin and phellopterin also activated ACTH-induced lipolysis. On the other hand, furocoumarins such as byak-angelicin, neobyakangelicol and isopimpinellin strongly inhibited insulin-stimulated lipogenesis. Therefore, the crude drug “Byakushi” may activate the actions of lipolytic hormones and selectively inhibit the effects of anti-lipolytic hormones.