Enteric neurons increase maternal food intake during reproduction.

Enteric neurons increase maternal food intake during reproduction.
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DOI:
10.1038/s41586-020-2866-8
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发表时间:
2020-11
期刊:
影响因子:
64.8
通讯作者:
Miguel-Aliaga I
Miguel-Aliaga I
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Hadjieconomou D;King G;Gaspar P;Mineo A;Blackie L;Ameku T;Studd C;de Mendoza A;Diao F;White BH;Brown AEX;Plaçais PY;Préat T;Miguel-Aliaga I

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生殖导致许多动物物种的雌性摄食量增加,为探索食欲调节提供了一个生理上相关的范例。分析果蝇肠道神经元的多样性,我们发现肠道神经支配的神经元具有性别和生殖状态特异性活动,在维持繁殖期间母亲增加的食物摄入量方面发挥了关键作用。类固醇和肠内分泌激素对这些神经元进行功能重塑,导致它们的神经肽在交配后释放到作物的肌肉上:一个类似胃的器官。交配后神经肽的释放改变了作物生长的动态,导致食物摄入量的增加。防止肠道神经元重塑会钝化生殖功能亢进,降低生殖适合度。因此,肠神经元的可塑性是繁殖成功的关键。我们的发现提供了一种新的机制来实现维持妊娠的正能量平衡,如果妊娠调节不当,可能会导致不孕或体重增加。
Reproduction induces increased food intake across females of many animal species, providing a physiologically relevant paradigm for exploration of appetite regulation. Parsing enteric neuronal diversity in Drosophila, we identify a key role for gut-innervating neurons with sex- and reproductive state-specific activity in sustaining the increased food intake of mothers during reproduction. Steroid and enteroendocrine hormones functionally remodel these neurons, leading to post-mating release of their neuropeptide onto the muscles of the crop: a stomach-like organ. Post-mating neuropeptide release changes the dynamics of crop enlargement, resulting in increased food intake. Preventing enteric neuron remodelling blunts reproductive hyperphagia and reduces reproductive fitness. Thus, plasticity of enteric neurons is key to reproductive success. Our findings provide a new mechanism to attain the positive energy balance that sustains gestation which, if dysregulated, could contribute to infertility or weight gain.
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