Although food-craving episodes during pregnancy are common in humans, the neural, cellular and molecular mechanisms that underlie these eating bouts remain unknown. New work points to dopamine receptor D2-expressing neurons of the reward system as critical mediators of compulsive feeding during pregnancy.

中文翻译：

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多巴胺会导致怀孕期间对食物的渴望

尽管怀孕期间的食物渴望发作在人类中很常见，但这些饮食发作背后的神经、细胞和分子机制仍然未知。新的研究表明，奖励系统中表达多巴胺受体 D2 的神经元是怀孕期间强迫进食的关键介质。