Differential inhibition of fat intake in two strains of rat by the peptide enterostatin - PubMed (original) (raw)
Differential inhibition of fat intake in two strains of rat by the peptide enterostatin
S Okada et al. Am J Physiol. 1992 Jun.
Abstract
The effect of enterostatin, the amino-terminal pentapeptide of pancreatic procolipase, on food intake was investigated in two strains of rat, the dietary fat-sensitive Osborne-Mendel (OM) rat and the dietary fat-resistant S5B/Pl rat. After an overnight fast, enterostatin inhibited intake of high-fat (HF) but not low-fat (LF) diets in OM rats, but had no effect in S5B/Pl rats. When fed a macronutrient three-choice diet, OM rats selected fat preferentially, whereas S5B/Pl rats selected carbohydrate. Enterostatin specifically inhibited the intake of fat in OM rats but not S5B/Pl rats fed a three-choice macronutrient diet. The activity of pancreatic colipase was increased in S5B/Pl rats on both HF and LF diets compared with OM rats. Pancreatic colipase activities were negatively related to the voluntary intake of fat on three-choice macronutrient diets. The data support the hypothesis that enterostatin may control the intake of dietary fat.
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