alexa Hyperlipoproteinemia in spontaneously diabetic guinea pigs.
Diabetes & Endocrinology

Diabetes & Endocrinology

Journal of Metabolic Syndrome

Author(s): Arbeeny CM, Nordin C, Edelstein D, Stram N, Gibbons N,

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Abstract A colony of Hartley guinea pigs that exhibit hyperglycemia, glucosuria, and hypertriglyceridemia characteristic of human diabetes mellitus was developed. Initially, a group of guinea pigs that had normal serum glucose concentrations (less than or equal to 200 mg/dL of serum) at 3 to 4 weeks of age was obtained; however, in some of the animals progressively severe hyperglycemia (300 to 500 mg/dL of serum) and glucosuria (greater than 2 g of glucose/24 h) occurred as the animals matured. In addition, the animals exhibiting hyperglycemia and glucosuria had plasma insulin concentrations that were similar to those animals that were not hyperglycemic. The diabetic animals were found to be hypertriglyceridemic, with plasma triglyceride levels of 140 to 290 mg/dL at four months of age. Nondiabetic animals (plasma glucose concentration of less than or equal to 200 mg/dL and no glucosuria) had plasma triglyceride concentrations between 37 and 76 mg/dL. Lipoprotein analysis of plasma from nondiabetic and diabetic animals indicated that the diabetics had a fourfold increase in VLDL triglyceride and protein concentrations. The VLDL had an abnormal apolipoprotein composition and had reduced levels of apoprotein-E. The progeny from the mating of diabetic males and females also exhibited the diabetic trait, suggesting that the origin of the disease is genetic. This colony of guinea pigs is being further investigated as a suitable model for the study of the hyperlipoproteinemia of human noninsulin-dependent diabetes mellitus.
This article was published in Metabolism and referenced in Journal of Metabolic Syndrome

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