| 摘要: | This study examined the effects of eugenosedin-A (Eu-A) in a streptozotocin (STZ)/
nicotinamide-induced rat model of type II diabetes mellitus (T2DM). Six-week-old Spraguee
Dawley rats were randomly divided into three groups: (1) RD group, normal rats fed a regular
diet (RD), (2) DM group, T2DM rats fed a high-fat diet, and (3) Eu-A group, T2DM rats fed a high
fat diet plus oral Eu-A (5 mg/kg/day). After 30 days, the DM group had higher body weight,
higher blood glucose and lower insulin levels than the RD group. The DM group also had
increased protein expression of glycogen synthase kinase (GSK) in liver and skeletal muscle
and decreased protein expression of insulin receptor (IR), insulin receptor substrate-1 (IRS-
1), IRS-2, AMP-activated protein kinase (AMPK), glucose transporter-4 (GLUT-4), glucokinase
(GCK), and peroxisome proliferator-activated receptor g (PPAR-g). STZ/nicotinamideinduced
T2DM increased the expression of mitogen-activated protein kinases (MAPKs: p38,
ERK, JNK) and inflammatory p65 protein. In the Eu-A treated T2DM rats, however, blood |
