Growth differentiation factor 15 (GDF15) and semaglutide inhibit food intake and body weight through largely distinct, additive mechanisms.
Growth differentiation factor 15 (GDF15) and semaglutide inhibit food intake and body weight through largely distinct, additive mechanisms.
复制标题
生长分化因子 15 (GDF15) 和索马鲁肽通过很大程度上不同的累加机制抑制食物摄入和体重。
DOI：
10.1111/dom.14663
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发表时间：
2022-06
影响因子：
5.8
通讯作者：
Grill, H. J.
中科院分区：
文献类型：
--
作者：
Ghidewon, M.;Wald, H. S.;McKnight, A. D.;De Jonghe, B. C.;Breen, D. M.;Alhadeff, A. L.;Borner, T.;Grill, H. J.
关键词：
To evaluate whether the potent hypophagic and weight-suppressive effects of growth differentiation factor-15 (GDF15) and semaglutide combined would be a more efficacious antiobesity treatment than either treatment alone by examining whether the neural and behavioural mechanisms contributing to their anorectic effects were common or disparate. Three mechanisms were investigated to determine how GDF15 and semaglutide induce anorexia: the potentiation of the intake suppression by gastrointestinal satiation signals; the reduction in motivation to feed; and the induction of visceral malaise. We then compared the effects of short-term, combined GDF15 and semaglutide treatment on weight loss to the individual treatments. Rat pharmaco-behavioural experiments assessed whether GDF15 or semaglutide added to the satiating effects of orally gavaged food and exogenous cholecystokinin (CCK). A progressive ratio operant paradigm was used to examine whether GDF15 or semaglutide reduced feeding motivation. Pica behaviour (ie, kaolin intake) and conditioned affective food aversion testing were used to evaluate visceral malaise. Additionally, fibre photometry studies were conducted in agouti-related protein (AgRP)-Cre mice to examine whether GDF15 or semaglutide, alone or in combination with CCK, modulate calcium signalling in hypothalamic AgRP neurons. Semaglutide reduced food intake by amplifying the feeding-inhibitory effect of CCK or ingested food, inhibited the activity of AgRP neurons when combined with CCK, reduced feeding motivation and induced malaise. GDF15 induced visceral malaise but, strikingly, did not affect feeding motivation, the satiating effect of ingested food or CCK signal processing. Combined GDF15 and semaglutide treatment produced greater food intake and body weight suppression than did either treatment alone, without enhancing malaise. GDF15 and semaglutide reduce food intake and body weight through largely distinct processes that produce greater weight loss and feeding suppression when combined.
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影响因子：
3.4
作者：
Kay, Kristen;Parise, Eric M.;Lilly, Nicole;Williams, Diana L.
通讯作者：
Williams, Diana L.
影响因子：
7.7
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Borner T;Geisler CE;Fortin SM;Cosgrove R;Alsina-Fernandez J;Dogra M;Doebley S;Sanchez-Navarro MJ;Leon RM;Gaisinsky J;White A;Bamezai A;Ghidewon MY;Grill HJ;Crist RC;Reiner BC;Ai M;Samms RJ;De Jonghe BC;Hayes MR
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DOI：
10.1152/ajpregu.00179.2014
发表时间：
2014-08-15
影响因子：
2.8
作者：
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DOI：
10.1016/j.ecl.2016.04.013
发表时间：
2016-09-01
影响因子：
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作者：
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通讯作者：
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