膳食胡萝卜素摄入量与皮肤类胡萝卜素水平的关系

The Association of Dietary Carotene Intake with the Skin Carotenoids Level

[目的]探讨人群中膳食胡萝卜素摄入量与皮肤类胡萝卜素水平的关系。[方法]选取上海某社区110名健康成年人作为研究对象,分别运用共振拉曼散射光谱法测定研究人群皮肤类胡萝卜素,观察皮肤类胡萝卜素水平,同时进行体格检查和膳食营养调查。[结果]①膳食胡萝卜素摄入量无性别差异;皮肤类胡萝卜素女性高于男性,差别有统计学意义(P<0．001)。②膳食中的胡萝卜素摄入量与皮肤类胡萝卜素水平呈正相关,控制年龄、性别和体质指数(BMI)后这种相关性仍然存在(P<0．05)。③多元回归分析显示男性皮肤类胡萝卜素水平受膳食纤维摄入量的影响(P<0．001);女性还受膳食中的维生素C、脂肪、能量等摄入量的影响(P<0．05)。[结论]食物中胡萝卜素、膳食纤维、脂肪、维生素C摄入量与皮肤类胡萝卜素水平有一定的关联。

[ Objective ] To explore dietary carotene intake and its possible association with the skin carotenoids level. [ Methods ] The skin carotenoids were detected with resonance raman spectroscopy, meanwhile the physical examinations and 24h- dietary questionnaires for 110 healthy adult subjects were carried out. [ Rosults ] ① There was no significant difference in their intakes of dietary carotene between male and female subjects while the females were with higher level of carotenoids in the skin than the males （ P〈0.001 ）. ② There was a positive correlation between dietary carotene intake and the skin carotenoids level even after several confounding factors adjusted such as age, gender and body mass index （ BMI ）（ P〈0.05 ）. ③ The multi-linear regression analysis showed the intake of fiber influenced skin carotenoids level in the males （ P〈0.001 ）while vitamin C, fat, energy played an important role in the females（ P〈0.05 ）. [ Conclusion ] The skin carotenoids level is associated with dietary carotene intake and other nutrients such as fiber, fat and vitamin C.