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aids, diseases, eli lilly, nutritional supplement, liverdisease, renal, norwegian fish oil, racine, cod liver oil, plump up , army, hepatitis g, coconut fatty acid , statins, ob/gyn, | We now have over twenty families in which the effects of high research & development fat feeding are exacerbated or prevented. Testing the heritability of these phenotypes is ongoing. Once proven heritable, a subset of these families will be mapped in an effort to find the mutated gene leading the phenotype. Insulin Signaling and Mechanisms of Insulin Resistance Insulin is the body's chief anabolic hormone. research & development It increases glucose uptake and glycogen synthesis while decreasing glycogen breakdown. Likewise, it increases the uptake of amino acids and incorporation into protein while decreasing the breakdown of protein. research & development Finally, it increases the incorporation of fatty acid into triglyceride while slowing lipolysis. Type 2 diabetes is defined by a serum glucose level above 7 mM and is marked by a resistance of peripheral tissue (e.g. muscle, liver, and fat) to the actions of insulin. This peripheral insulin resistance is the result of environmental and genetic influences. |
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Interestingly, PC1 knockout mice do not become obese; in fact they are runted, likely due to an inability eli lilly to process pro-growth hormone releasing hormone. This mutation highlights the advantages eli lilly of ENU mutagenesis and phenotype-driven screening and affords the opportunity to study the role of PC1 and peptide processing in energy homeostasis. Relevant to human disease, the mouse is a good model for obesity, diabetes, and insulin resistance. Like humans, mice fed a high fat diet gain more weight, and are more insulin resistant than low fat-fed counterparts. Prolonged high fat feeding will lead to overt diabetes. eli lilly We are taking advantage of this fact and challenging the mutagenized mice with a high fat diet. This allows us to uncover genes that both predispose to insulin resistance and obesity, and genes that protect from the effects of high fat feeding. Genes that protect against the effects of high fat feeding when inactivated (via ENU) are, of course, good drug targets for combating diabetes and obesity. |
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