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Diabetes Pathogenesis

MCHr1 deficiency raises insulin sensitivity in obese leptin-deficient, but not body weight

Published in Obesity and Diabetes Week, April 24th, 2006

Melanin-concentrating hormone receptor 1 deficiency increases insulin sensitivity in obese leptin-deficient mice without affecting body weight.

"The hypothalamic peptide melanin-concentrating hormone (MCH) plays important roles in energy homeostasis. Animals overexpressing MCH develop hyperphagia, obesity, and insulin resistance," scientists writing in the journal Diabetes report.

"In this study," explained M. Bjursell and colleagues working with AstraZeneca in Sweden, "mice lacking both the MCH receptor-1 (MCHr1 knockout) and leptin (ob/ob) double-null mice (MCHr1 knockout ob/ob) were generated to investigate whether the obesity and/or the...

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