Food intake in rhesus monkeys following central administration of orexins

被引:13
作者
Ramsey, JJ [1 ]
Kemnitz, JW
Newton, W
Hagopian, K
Patterson, TA
Swick, AG
机构
[1] Univ Calif Davis, Sch Vet Med, Dept Mol Sci, Davis, CA 95616 USA
[2] Univ Wisconsin, Wisconsin Reg Primate Res Ctr, Madison, WI 53715 USA
[3] Pfizer Global Res & Dev, Dept Metab Dis, Groton, CT 06340 USA
关键词
orexin A; orexin B; neuropeptide Y; obesity;
D O I
10.1016/j.regpep.2004.07.018
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Orexin A has been reported to stimulate food intake in rats while orexin B does not. The purpose of this study was to determine the role of orexin A or orexin B administration on food intake in adult, male rhesus monkeys. Food intake was measured at 2 and 8 h after the morning feeding following central injections of vehicle, orexin A (10, or 20 mug) or orexin B (10, 30, or 100 mug). When compared to vehicle injections, the 10 and 20 mug doses of orexin A decreased food intake at 2 h post-dose by 45% and 64%, respectively. Eight-hour food intake was decreased at only the 20 mug orexin A dose. Orexin B at all doses and time points did not alter food intake when compared to vehicle. These results indicate that orexin A exhibits anorectic activity while orexin B does not affect food intake in the rhesus monkey. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:209 / 214
页数:6
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