Suzuki S, Sasaki R, Ito Y, Hamajima N, Shibata A, Tamakoshi A, Otani M, Aoki K
Department of Preventive Medicine, Nagoya University School of Medicine.
Jpn J Cancer Res. 1990 May;81(5):463-9. doi: 10.1111/j.1349-7006.1990.tb02592.x.
Serum levels of beta-carotene among 147 healthy male inhabitants were measured twice with an interval of one year in order to determine the relationship between changes in serum beta-carotene levels and changes in the dietary intake of green-yellow vegetables. A positive association was found to exist between changes in the intake frequency of green-yellow vegetables and changes in serum beta-carotene levels, whereas changes in alcohol intake and smoking were discovered to be negatively associated with changes in serum beta-carotene levels. The positive association between changes in the intake frequency of green-yellow vegetables and changes in serum beta-carotene levels was preserved after adjustment for these negative factors.
对147名健康男性居民的血清β-胡萝卜素水平进行了两次测量,间隔为一年,以确定血清β-胡萝卜素水平的变化与黄绿色蔬菜饮食摄入量变化之间的关系。发现黄绿色蔬菜摄入频率的变化与血清β-胡萝卜素水平的变化呈正相关,而酒精摄入量和吸烟量的变化与血清β-胡萝卜素水平的变化呈负相关。在对这些负面因素进行调整后,黄绿色蔬菜摄入频率的变化与血清β-胡萝卜素水平的变化之间的正相关关系依然存在。