Harris Anna, Gray Marion A, Slaney David P, Turley Maria L, Fowles Jefferson R, Weinstein Philip
Department of Public Health, Wellington School of Medicine and Health Sciences, University of Otago, Wellington, New Zealand.
Anticancer Res. 2004 Jul-Aug;24(4):2551-6.
To examine ethnic differences in diet and dietary associations with clinical markers of prostate disease in New Zealand men.
A total of 1031 males (616 New Zealand European, 230 Maori and 185 Pacific Islands) aged 40-69 years, with no history of prostate cancer, completed a questionnaire covering diet. A serum prostate specific antigen (PSA) blood analysis was also undertaken. Regression models were developed to examine the ethnic-specific levels of selected dietary components, and their relationship with PSA and urinary symptom scores.
The results confirmed previously found ethnic differences in the New Zealand diet. Combined tomato intake was positively-correlated with free PSA and % free PSA (p=0.021, r=0.197 and p=0.011, r=0.096 respectively). Beer intake was negatively-correlated with total PSA (p=0.028, r=-0.071) and free PSA (p=0.004, r=-0.094).
Ethnic differences found in the consumption of foods (associated with prostate cancer) highlight the possible importance of dietary interactions for ethnic prostate cancer risk. Associations between specific foods and PSA warrant further investigation.
研究新西兰男性在饮食方面的种族差异以及饮食与前列腺疾病临床指标之间的关联。
共有1031名年龄在40至69岁之间、无前列腺癌病史的男性(616名新西兰欧洲人、230名毛利人和185名太平洋岛民)完成了一份关于饮食的问卷。同时还进行了血清前列腺特异性抗原(PSA)血液分析。建立回归模型以研究特定饮食成分的种族特异性水平,及其与PSA和尿路症状评分的关系。
结果证实了此前发现的新西兰饮食中的种族差异。番茄摄入量与游离PSA和游离PSA百分比呈正相关(分别为p = 0.021,r = 0.197和p = 0.011,r = 0.096)。啤酒摄入量与总PSA(p = 0.028,r = -0.071)和游离PSA(p = 0.004,r = -0.094)呈负相关。
在(与前列腺癌相关的)食物消费中发现的种族差异凸显了饮食相互作用对种族前列腺癌风险的潜在重要性。特定食物与PSA之间的关联值得进一步研究。