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Overexpression of human lipoprotein lipase protects diabetic transgenic mice from diabetic hypertriglyceridemia and hypercholesterolemia. 1995

M Shimada, and S Ishibashi, and T Gotoda, and M Kawamura, and K Yamamoto, and T Inaba, and K Harada, and J Ohsuga, and S Perrey, and Y Yazaki
Third Department of Internal Medicine, University of Tokyo, Japan.

We investigated the role of the overexpression of lipoprotein lipase (LPL) in lipoprotein abnormalities in transgenic mice with streptozotocin-induced diabetes mellitus. Before the induction of diabetes, LPL activity was 4.6-fold in skeletal muscle and 2.0-fold higher in the heart in transgenic mice than in their nontransgenic littermates. LPL activity in skeletal muscles in diabetic nontransgenic mice and cardiac LPL activity in diabetic nontransgenic and transgenic mice were decreased. Body weights were similarly reduced, and no appreciable amount of adipose tissue was observed in diabetes in both groups. The plasma triglyceride level was lower in diabetic transgenic mice than in diabetic nontransgenic mice (33.2 +/- 22.5 versus 185.3 +/- 57.4 mg/dL). Induction of diabetes was associated with a significant increase in the plasma cholesterol level in nontransgenic mice (90.0 +/- 11.1 versus 163.9 +/- 39.3 mg/dL) but much less in transgenic mice. Our results indicate that overexpression of LPL in transgenic mice inhibited diabetes-associated hypertriglyceridemia and hypercholesterolemia but did not affect the loss of body weight induced by diabetes.

UI MeSH Term Description Entries
D007328 Insulin A 51-amino acid pancreatic hormone that plays a major role in the regulation of glucose metabolism, directly by suppressing endogenous glucose production (GLYCOGENOLYSIS; GLUCONEOGENESIS) and indirectly by suppressing GLUCAGON secretion and LIPOLYSIS. Native insulin is a globular protein comprised of a zinc-coordinated hexamer. Each insulin monomer containing two chains, A (21 residues) and B (30 residues), linked by two disulfide bonds. Insulin is used as a drug to control insulin-dependent diabetes mellitus (DIABETES MELLITUS, TYPE 1). Iletin,Insulin A Chain,Insulin B Chain,Insulin, Regular,Novolin,Sodium Insulin,Soluble Insulin,Chain, Insulin B,Insulin, Sodium,Insulin, Soluble,Regular Insulin
D008071 Lipoprotein Lipase An enzyme of the hydrolase class that catalyzes the reaction of triacylglycerol and water to yield diacylglycerol and a fatty acid anion. The enzyme hydrolyzes triacylglycerols in chylomicrons, very-low-density lipoproteins, low-density lipoproteins, and diacylglycerols. It occurs on capillary endothelial surfaces, especially in mammary, muscle, and adipose tissue. Genetic deficiency of the enzyme causes familial hyperlipoproteinemia Type I. (Dorland, 27th ed) EC 3.1.1.34. Heparin-Clearing Factor,Lipemia-Clearing Factor,Diacylglycerol Lipase,Diglyceride Lipase,Post-Heparin Lipase,Postheparin Lipase,Postheparin Lipoprotein Lipase,Factor, Heparin-Clearing,Factor, Lipemia-Clearing,Heparin Clearing Factor,Lipase, Diacylglycerol,Lipase, Diglyceride,Lipase, Lipoprotein,Lipase, Post-Heparin,Lipase, Postheparin,Lipase, Postheparin Lipoprotein,Lipemia Clearing Factor,Lipoprotein Lipase, Postheparin,Post Heparin Lipase
D008822 Mice, Transgenic Laboratory mice that have been produced from a genetically manipulated EGG or EMBRYO, MAMMALIAN. Transgenic Mice,Founder Mice, Transgenic,Mouse, Founder, Transgenic,Mouse, Transgenic,Mice, Transgenic Founder,Transgenic Founder Mice,Transgenic Mouse
D001786 Blood Glucose Glucose in blood. Blood Sugar,Glucose, Blood,Sugar, Blood
D001835 Body Weight The mass or quantity of heaviness of an individual. It is expressed by units of pounds or kilograms. Body Weights,Weight, Body,Weights, Body
D003921 Diabetes Mellitus, Experimental Diabetes mellitus induced experimentally by administration of various diabetogenic agents or by PANCREATECTOMY. Alloxan Diabetes,Streptozocin Diabetes,Streptozotocin Diabetes,Experimental Diabetes Mellitus,Diabete, Streptozocin,Diabetes, Alloxan,Diabetes, Streptozocin,Diabetes, Streptozotocin,Streptozocin Diabete
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D006937 Hypercholesterolemia A condition with abnormally high levels of CHOLESTEROL in the blood. It is defined as a cholesterol value exceeding the 95th percentile for the population. Hypercholesteremia,Elevated Cholesterol,High Cholesterol Levels,Cholesterol Level, High,Cholesterol Levels, High,Cholesterol, Elevated,Cholesterols, Elevated,Elevated Cholesterols,High Cholesterol Level,Hypercholesteremias,Hypercholesterolemias,Level, High Cholesterol,Levels, High Cholesterol
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D015228 Hypertriglyceridemia A condition of elevated levels of TRIGLYCERIDES in the blood. Hypertriglyceridemias

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