The team discovered that a certain B. subtilis signalling molecule, known as competence and sporulation factor (CSF), is detected by human gut cells (Cell Host &Microbe, vol 1, p 299).
You would be wise to pay very close attention to your gut feelings regarding anything that relates to your home life. Children factor strongly.
你要特别关注你对于家庭生活方面的直觉感受，孩子是其中一个重要因素。
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Parietal cells generate stomach acid as well as a substance called intrinsic factor, which enables a vitamin called B12 to be absorbed further along in the gut.