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  • P-ISSN 1010-0695
  • E-ISSN 2288-3339

Effects of Palmijihwangtang (PMT) and Exercise on Glucose Metabolism in Myocardium Cell Membrane and Pancreas β-Cell of Zucker Diabetic Fatty Rats

Journal of Korean Medicine / Journal of Korean Medicine, (P)1010-0695; (E)2288-3339
2004, v.25 no.4, pp.200-208
Myeong-Jong Lee
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Abstract

Objectives : Non-insulin Dependent Diabetes Mellitus (NIDDM) is characterized by insulin resistance, which affects the glucose transportation inside the cell. The purpose of this study was to find out how Palmijihwangtang (PMT) and exercise influence the glucose transport metabolism in the organ muscles of ZDF (zucker diabetic fatty) rat with insulin resistance. Methods : Using three male normal zucker rats and twelve male obese rats, they were divided into a normal lean group (N=3), obese control group (N=3), obese exercises group (N=3), obese medication group (N=3), obese exercise and medication group (N=3). Treadmill exercise were repeated with 27m/min speed for an hour a day, five days a week, for 8 weeks. And 20㎖ of PMT was orally administered twice a day for 8 weeks, after that a period blood sample was exsanguinated by heart perforation and was analyzed. Results : The body weight of the OM and OEM group showed a significant decrease among all the obese groups. The blood insulin level increased significantly of all groups in comparison with the N group. All of the OE, OM and the OEM groups showed a significant decrease of insulin level compared with the OC group; especially the OEM group demonstrated the most among obese groups. Regarding GLUT-4 level, OEM was the unique group showed a significant increase among all the obese groups. The VAMP-2 level in myocardium cell membrane was increased significantly at OC group in comparison with the N group, whereas the OEM group only showed significant decrease of it. In addition, the VAMP-2 level in pancreas β-cell was significantly decreased at all the obese groups in comparison with the N group. Only the OEM group showed significant increase among all the obese groups. Conclusion : Palmijihwangtang (PMT) and exercise could effectively promote the insulin metabolism in pancreas β-cells and activate the glucose transport process in myocardium cell membrane by lowering the insulin resistance of ZDF rats.

keywords
Key words: Non-insulin Dependent Diabetes Mellitus (NIDDM), insulin resistance, GLUT-4, VAMP-2, Palmijihwangtang (PMT)


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