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cholecystokinin-A receptors are hyperphagic, obese, and diabetic. Although exercise attenuates OLETF rats ’ obesity, the mechanisms underlying the effects of exercise are unclear. In this study, we determined the effects of running wheel activity on patterns of body weight gain, food intake, and hypothalamic gene expression. We demonstrate that voluntary running activity beginning at 8 wk of age normalized meal patterns, food intake, body weight, and plasma levels of glucose and leptin in OLETF rats. During the initial exercise period, corticotropin-releasing factor (CRF) mRNA expression was significantly elevated in the dorsomedial hypothalamus (DMH) but not in the paraventricular nucleus in both OLETF and control Long-Evans Tokushima rats. In response to long-term exercise, arcuate nucleus (Arc) neuropeptide Y
Bi et al. (Thu,) studied this question.