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Enterostatin deficiency increases serum cholesterol but does not influence growth and food intake in mice
Rita Miller1, Dymphna D'Agostino, Charlotte Erlanson-Albertsson
1Department of Pediatrics, Children's Hospital of Pittsburgh of University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA.
Abstract:
A pentapeptide released from procolipase, enterostatin, selectively attenuates dietary fat intake when administered peripherally or centrally. Enterostatin may act through the afferent vagus nerve and in the hypothalamus and amygdala, primarily in the central nucleus of the amygdala. To investigate the physiological role of endogenous enterostatin, we created an enterostatin-deficient, colipase-sufficient (Ent(-/-)) mouse. Ent(-/-) mice are viable, normally active, and fertile. They exhibit normal growth on low-fat and high-fat diets. Furthermore, Ent(-/-) mice develop diet-induced obesity, as do Ent(+/+) mice, and have normal responses to a two-macronutrient choice diet and to a switch from a high-fat to a low-fat diet. Levels of total serum (P = 0.004) and non-HDL (P
