Freni S C, Dalderup L M, Oudegeest J J, Wensveen N
J Clin Pathol. 1977 Apr;30(4):341-4. doi: 10.1136/jcp.30.4.341.
In a population of 432 apparently healthy men aged 50 years and over 19-2% had one or more erythrocytes per high-power field in the urine while 8-1% had more than 10. Erythrocyturia seemed to be strongly correlated with tobacco consumption. No significant association with occupation could be demonstrated but the data were insufficient to refute the possibility of such an association. Raised levels of orthoaminophenols as a result of abnormal tryptophan metabolism induced by smoking might cause microhaematuria in smokers. As these metabolites are carcinogens microhaematuria might be a valuable sign of cancer of the urinary bladder.
在432名50岁及以上的明显健康男性群体中，19.2%的人尿液中每高倍视野有一个或多个红细胞，而8.1%的人红细胞超过10个。红细胞尿似乎与烟草消费密切相关。未发现与职业有显著关联，但数据不足以排除这种关联的可能性。吸烟引起的色氨酸代谢异常导致邻氨基酚水平升高，可能会导致吸烟者出现微量血尿。由于这些代谢物是致癌物，微量血尿可能是膀胱癌的一个重要迹象。
