Effect of Persistent Mild Hyperglycemic Hyperinsulinemia on Development of Insulin Resistance in Rats.
10.12701/yujm.1995.12.2.269
- Author:
Yong Woon KIM
;
Jin Hyun PARK
;
So Young PARK
;
Jong Yeon KIM
;
Suck Kang LEE
- Publication Type:Original Article
- MeSH:
Animals;
Blood Glucose;
Eating;
Glucans;
Glucose;
Glucose Clamp Technique;
Glycogen;
Hyperinsulinism*;
Insulin Resistance*;
Insulin*;
Liver;
Models, Animal;
Rats*
- From:Yeungnam University Journal of Medicine
1995;12(2):269-281
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
The effect of persistant mild hyperglycemic hyperinsulinemia on the development of the insulin resistance in rats was studied in vivo. Also, the characteristics of the insulin resistance compared with the insulin resistance of STZ diabetic rats. Persistant mild hyperglycemic hyperinsulinemic rat model was produced by ingestion of glucose polymer for 8 days. The glucose disappearance and infusion rate was measured by hyperinsulinemic euglycemic clamp to"Imique at steady state of blood glucose and insulin levels. The clamped level of blood glucose was 100 mg/dl, and the clamped levels of insulin were 70 pU/ml (physiologic condition) and 3000 pU/ml (supramaximal condition). Hepatic glucose producticon rate was calculated using measured data. And the glycogen synthetic capacity of skeletal muscle(soleus) and liver was measured after 2 hours of hyperinsulinemic euglycemic clamp study. The glucose disappearance and glucose infusion rate in glucose polymer group was decreased in the both physiological and supramaximal insulin level compared to the rate of the normal control group. The rate of STZ diabetic group wase lowest at supramaximal insulin level among two another experimental groups. The hepatic glucose production rate of glucose polymer group was decreased compared to normal control but increased in STZ diabetic group.
