Walker A R
Am J Clin Nutr. 1978 Oct;31(10 Suppl):S248-S251. doi: 10.1093/ajcn/31.10.S248.
Colon cancer, very rare in rural South African blacks, is also rare in urban dwellers despite considerable rise in prosperity. The disease has scarcely increased during the last quarter of a century. The same situation applies to appendicitis. Endeavors to characterize different black populations in transition (including subjects who have had appendicitis) are being made respecting 1) diet, especially dietary fiber intake; 2) bowel physiology (e.g., transit time); 3) concentrations of fecal bile acids and other metabolites; and 4) the activity of certain fecal enzymes.
结肠癌在南非农村黑人中极为罕见，在城市居民中也很罕见，尽管生活水平有了显著提高。在过去的四分之一个世纪里，这种疾病几乎没有增加。阑尾炎的情况也是如此。目前正在努力从以下几个方面对不同的转型期黑人人群（包括患过阑尾炎的人）进行特征描述：1）饮食，尤其是膳食纤维摄入量；2）肠道生理功能（如转运时间）；3）粪便胆汁酸和其他代谢物的浓度；4）某些粪便酶的活性。
