Novel α-glucosidase inhibitors, CKD-711 and CKD-711a produced by Streptomyces sp CK-4416II.: Biological properties

被引：12

作者：

Kwon, YI ^{[1
]}

Son, HJ ^{[1
]}

Moon, KS ^{[1
]}

Kim, JK ^{[1
]}

Kim, JG ^{[1
]}

Chun, HS ^{[1
]}

Ahn, SK ^{[1
]}

Hong, CI ^{[1
]}

机构：

[1] CKD Res Inst, Cheonan 330600, South Korea

来源：

JOURNAL OF ANTIBIOTICS | 2002年 / 55卷 / 05期

关键词：

D O I：

10.7164/antibiotics.55.462

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

CKD-711 and CKD-711a are aminooligosaccharide alpha-glucosidase inhibitors discovered during the bioactive material screening for antibacterial agent. Their inhibitory activities were studied and compared with those of acarbose in vitro and in vivo with animals, In in vitro study, CKD-711 showed similar effects to acarbose on porcine intestinal maltase and sucrase, IC(50)s of 2.5 and 0.5 mug/ml, respectively, whereas it had about 2 fold lower alpha-amylase inhibitory activity (IC50, 78.0 mug/ml) than acarbose (IC50, 36 mug/ml). CKD-711a showed less inhibitory activity than CKD-711 against all the enzymes tested. In rat fed on starch and sucrose meals, the dose of CKD-711 which reduced the postprandial blood glucose increment by 50 percent in comparison to control rats (ED50) were 3.07 and 1.15 mg/kg, respectively, and acarbose had ED(50)s of 1.94 and 1.15 mg/kg, respectively. CKD-711 and CKD-711a also showed antibacterial activity against Comamonas terrigena.

引用

页码：462 / 466

页数：5

共 20 条

[1]

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[2] Novel α-glucosidase inhibitors, CKD-711 and CKD-711a produced by Streptomyces sp CK-4416 -: III.: Physico-chemical properties and structure elucidation [J].