Objective to investigate the role of oestrogen receptors and enteric mast cells in the pathogenesis of irritable bowel syndrome (IBS).

目的探讨肠易激综合征(IBS)患者肠道内雌、孕激素受体阳性细胞和肥大细胞相关性及其临床意义。

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In women there are more oestrogen receptors and in men more androgen receptors present.

BBC: NEWS | Health | Your brain's sex can make you ill

Because male-typical behaviours developed as the result of a burst of testosterone, but in the absence of receptors for the hormone, the researchers suspect that the testosterone in the surge is being converted into oestrogen to carry out the newborn sexual-differentiation.

ECONOMIST: Behaviour of the sexes