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宝宝的绿便之谜

Zhu Nin Jian Kang(2021)

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Abstract
〇 谁给大便"染"了颜色 人体在消化食物的过程中需要胆汁的参与,胆汁是通过胆囊收缩经胆管排泄到十二指肠,然后参与对小肠中食糜的消化活动.胆汁中的主要色素是胆红素,呈金黄色,而胆红素经氧化后变成的胆绿素是暗绿色的. 正常情况下,胆红素随胆汁排到肠道,在细菌的作用下被还原成胆素原,胆素原再在肠道下段被氧化为粪胆素,粪胆素是黄色的,这便是正常大便的颜色了.
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