论文部分内容阅读
据统计,近年来国内外老年人前列腺癌发病率呈不断上升趋势。前列腺癌的发病除了与年龄、种族、遗传及生活习惯等因素相关外,美国科研人员最近发现,老年人体内某些维生素缺乏与前列腺癌的发病也有密切关系。 调查显示患病30年以上的前列腺癌患者与维生素A、β-胡萝卜素的摄入不足有明显关系,在正常的前列腺组织中维生素A及β-胡萝卜素的浓度较前列腺癌组织中高5～8倍,较良性前列腺增生的组织高2倍,这表明维生素A和β-胡萝卜素可预防前列腺癌的发生。
According to statistics, the incidence of prostate cancer at home and abroad has been on the rise in recent years. The incidence of prostate cancer is related to factors such as age, ethnicity, genetics, and lifestyle habits. U.S. researchers recently discovered that the lack of certain vitamins in the elderly is also closely related to the onset of prostate cancer. The survey shows that patients with prostate cancer who have been sick for more than 30 years are significantly associated with insufficient intake of vitamin A and beta-carotene. In normal prostate tissue, the concentrations of vitamin A and beta-carotene are 5 to 8 higher than those in prostate cancer tissues. Times, two times higher than that of benign prostatic hyperplasia, suggesting that vitamin A and beta-carotene can prevent the occurrence of prostate cancer.