Gastrin releasing peptide-29 evokes feeding responses in the rat

Gastrin releasing peptide-29 evokes feeding responses in the rat
复制标题

DOI:
10.1016/j.peptides.2010.10.027
复制
发表时间:
2011-02-01
期刊:
影响因子:
3
通讯作者:
Sayegh, Ayman I.
Sayegh, Ayman I.
中科院分区:
医学3区
文献类型:
--
作者:
Washington, Martha C.;Wright, Susan A.;Sayegh, Ayman I.

文献摘要

被引文献

相似文献

在哺乳动物中,胃泌素释放肽(GRP)10和27减少食物摄入。在目前的工作中,我们测试的假设,即GRP-29,大分子形式的GRP在大鼠中,也引起进食反应与饱腹感的可能作用一致。在这里,我们测量了三个喂养反应,第一餐的大小,(IMI,第一餐和第二餐之间的时间)和饱腹感比率(SR,第一餐中消耗的每单位食物的饱足期),在GRP-10、27或29后的过夜食物剥夺大鼠中(0、0.3、1.0、2.1、4.1、10.3、17.2 nmol/kg),并提供10%蔗糖试验饮食。GRP-29和GRP-27减少了第一餐的大小,延长IMI和增加SR,但GRP-10未能表现出类似的摄食反应。效力的顺序为GRP-29 = GRP-27 > GRP-10。目前的数据支持GRP-29在食物摄入的短期调节中的作用。爱思唯尔公司出版。
In mammals, gastrin releasing peptide (GRP) 10 and 27 reduce food intake. In the current work, we test the hypothesis that GRP-29, the large molecular form of GRP in the rat, also evokes feeding responses consistent with a possible role in satiety. Here, we measured three feeding responses, size of first meal, intermeal interval (IMI, time between first and second meal) and satiety ratio (SR, satiation period for every unit of food consumed in the first meal), in overnight food deprived rats following GRP-10, 27 or 29 (0, 0.3, 1.0, 2.1, 4.1, 10.3, 17.2 nmol/kg) intraperitoneally and presentation of a 10% sucrose test diet. GRP-29 and GRP-27 reduced the size of the first meal, prolonged IMI and increased SR, but GRP-10 failed to exhibit similar feeding responses. The order of potency was GRP-29 = GRP-27 > GRP-10. The current data support a role for GRP-29 in the short-term regulation of food intake. Published by Elsevier Inc.