[中国三个城市老年女性膳食植物甾醇摄入量与血脂含量的比较]
[Comparison of the dietary phytosterols intake and serum lipids content in elderly women from three cities of China].
作者信息
Han Jun-hua, Li Yan-ping, Men Jian-hua, Yu Wen-tao, Yang Yue-xin
机构信息
National Institute for Nutrition and Food Safety, Chinese Centre for Disease Control and Prevention, Beijing 100050, China.
出版信息
Zhonghua Yu Fang Yi Xue Za Zhi. 2009 Dec;43(12):1060-3.
OBJECTIVE
To investigate the dietary phytosterol intake of elderly women in three different cities of China, and to compare the main dietary sources, so that to discuss the relationship of dietary phytosterol intake and serum lipids.
METHODS
Based on the dietary pattern, women more than 50 years old from Beijing, Hefei and Urumchi were chosen as testers, 80 - 100 people for each city respectively. The dietary survey was done by continues 24 hours review of two days, the plant food were collected and the phytosterol content (include beta-sitosterol, campesterol, stigmasterol, sitostanol) were analyzed by GC methods, the total phytosterols content were calculated. The dietary phytosterol intake were calculated and serum lipids were also analyzed in all the testers.
RESULTS
Testers from Beijing, Hefei and Urumchi were 100, 101 and 84 respectively. The average dietary phytosterol intake of people in Beijing and Hefei were 340.3 mg/d and 313.5 mg/d, the main sources were plant oil and cereals, while the average dietary phytosterol intake of people in Urumchi were 550.4 mg/d, higher than the other two cities (t values were 9.369, 10.420, respectively, both P values < 0.01), the main source in Urumchi was cereal (provide 53.1% of the total phytosterol intake). The laboratory results showed, testers in Urumchi had significantly lower serum TC content ((4.04 +/- 0.78) mmol/L) than that in Beijing ((4.89 +/- 0.91) mmol/L) and Hefei ((4.71 +/- 0.83) mmol/L) (t value were 6.766 and 5.401 respectively, both P values < 0.01); serum TG content in Urumchi((1.01 +/- 0.48) mmol/L) was also lower than that in Beijing ((1.31 +/- 0.53) mmol/L) and Hefei ((1.66 +/- 0.75) mmol/L) (t values were 3.343 and 7.293 respectively, both P values < 0.01); the serum glucose is also lower in testers in Urumchi ((5.02 +/- 2.18) mmol/L) compared with testers in Beijing ((5.69 +/- 1.53) mmol/L, t = 2.561, P < 0.05) and Hefei ((5.78 +/- 1.53) mmol/L, t = 2.934, P < 0.01).
CONCLUSION
Different dietary pattern result in significantly different dietary phytosterol intake in elder women in three cities, higher, phytosterol intake seemed to contribute to lower serum lipids.
目的
调查中国三个不同城市老年女性的膳食植物甾醇摄入量，比较其主要膳食来源，以探讨膳食植物甾醇摄入量与血脂的关系。
方法
根据膳食模式，选取北京、合肥和乌鲁木齐50岁以上女性作为受试对象，每个城市分别选取80 - 100人。采用连续两天24小时回顾法进行膳食调查，收集植物性食物，用气相色谱法分析植物甾醇含量（包括β-谷甾醇、菜油甾醇、豆甾醇、谷甾烷醇），计算总植物甾醇含量。计算所有受试对象的膳食植物甾醇摄入量，并分析其血脂情况。
结果
北京、合肥和乌鲁木齐的受试对象分别为100人、101人和84人。北京和合肥人群的膳食植物甾醇平均摄入量分别为340.3mg/d和313.5mg/d，主要来源为植物油和谷类；而乌鲁木齐人群的膳食植物甾醇平均摄入量为550.4mg/d，高于其他两个城市（t值分别为9.369、10.420，P值均<0.01），乌鲁木齐的主要来源是谷类（占植物甾醇总摄入量的53.1%）。实验室结果显示，乌鲁木齐受试对象的血清总胆固醇（TC）含量（(4.04±0.78)mmol/L）显著低于北京（(4.89±0.91)mmol/L）和合肥（(4.71±0.83)mmol/L）（t值分别为6.766和5.401，P值均<0.01）；乌鲁木齐的血清甘油三酯（TG）含量（(1.01±0.48)mmol/L）也低于北京（(1.31±0.53)mmol/L）和合肥（(1.66±0.75)mmol/L）（t值分别为3.343和7.293，P值均<0.01）；乌鲁木齐受试对象的血糖（(5.02±2.
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