Chemical and Pharmaceutical Bulletin p. 359 - 361 (1998)
Update date:2022-08-16
Topics:
Ikeda, Tsuyoshi
Udayama, Manabu
Okawa, Masafumi
Arao, Tomonori
Kinjo, Junei
Nohara, Toshihiro
As a part of our studies of hepatoprotective drugs, we prepared some soyasapogenol B analogs from soyasaponin I. We examined the hepatoprotective effects of these analogs, using immunologically-induced liver injury, in primary cultured rat hepatocytes. Soyasaponin III and soyasapogenol B monoglucuronide were more effective than soyasaponin I. Both compounds were significantly effective even at 30μM. The action of soyasapogenol B was almost equal to that of soyasaponin I, although glucuronic acid did not show any activity even at the highest dose (500μM). When the two compounds were mixed, the hepatoprotective action did not change, compared with soyasapogenol B. Therefore, we concluded that the linkage between glucuronic acid and soyasapogenol B could enhance the hepatoprotective activity.
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