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Arteriosclerosis. 1985 Jan-Feb;5(1):93-100.

Serum lipoprotein and lipoprotein lipase in overweight, type II diabetics during and after supplemented fasting.


Poorly controlled, obese, Type II diabetics were studied before, during, and 3 months after a weight reduction program that used supplemented fasting (200 kcal or 0.9 MJ/day). During fasting, the very low density lipoprotein (VLDL) triglycerides (TG) decreased, as did the adipose tissue lipoprotein lipase (AT-LPLA) and skeletal muscle lipoprotein lipase (SM-LPLA) activities. Three months later VLDL TG remained low (-59%), while high density lipoprotein cholesterol was higher (+11%) and blood glucose control improved compared with values on admission. The fractional removal rate (K2) at the i.v. fat tolerance test (IVFTT) and the SM-LPLA were unchanged, while AT-LPLA (expressed per gram of wet weight, but not as whole-body AT-LPLA) increased by 25%. There were no significant correlations between AT-LPLA and the lipoprotein TG concentrations or K2-IVFTT, although there were significant positive correlations between SM-LPLA and K2-IVFtt, both on admission and after body weight stabilization. This may indicate that SM-LPLA is more directly related to the capacity to remove lipoprotein TG, at least in obese diabetic patients. K2-IVFTT was inversely correlated to the VLDL TG and cholesterol concentrations both before and 3 months after fasting. Because both SM-LPLA and K2-IVFTT were unchanged after body weight reduction, the change in VLDL TG may be mainly due to a reduced rate of lipoprotein synthesis.

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