Hill M J
ECP (UK) Headquarters, Lady of Sobell G-I Unit, Wexham Park Hospital, Slough, Berks, UK.
Eur J Cancer Prev. 1996 Sep;5 Suppl 1:71-4.
Table 4 summarizes the factors limiting endogenous N-nitrosation by bacteria and their likely relative importance. It is now well established that NNOCs are formed in large amounts in the hypochlorhydric stomach. Similar quantities would be expected in the urinary bladder when there is a complex flora. Large amounts would also be expected in the vagina of women with vaginitis, but only small amounts would be expected in saliva, in patients with small bowel overgrowth or in simple bladder infections.
表4总结了限制细菌内源性亚硝化作用的因素及其可能的相对重要性。现已充分证实，在胃酸缺乏的胃中会大量形成N-亚硝基化合物（NNOCs）。当存在复杂菌群时，预计膀胱中也会有类似数量的此类化合物。患有阴道炎的女性阴道中预计也会有大量此类化合物，但在唾液、小肠细菌过度生长的患者或单纯膀胱感染患者中预计只会有少量。
