牛磺酸和微量营养素干预对人体蛋白营养状况及暗适应功能的影响

目的 :研究低照度作业人员营养干预对血浆蛋白、血浆游离氨基酸含量及夜视功能影响。方法 :驻渝某雷达团战士 34人 ,年龄 1 8～ 2 9岁 ,分为实验组和对照组 ,实验组人员每天加服一定剂量牛磺酸及多种微量营养素。实验期限为 4周 ,分别在服药前、服药 2周及服药 4周检测受试人员快速暗适应时间。结果 :低照度作业人群 ,服用牛磺酸和多种复合微量营养素制剂 2周后 ,快速暗适应功能即大幅度提高 ,服用 4周后效果更佳。营养干预后 ,实验组 PAB、CER、TRF三种血浆蛋白均有所升高 ,而蛋氨酸 ( Met)、异亮氨酸 ( Iie)和亮氨酸 ( Leu)等必需氨基酸含量则降低。结论 :适当补充牛磺酸及 VA、B族维生素、VC、微量元素 Zn、Se能有效提高低照度作业人群暗适应功能

Influences of taurine and micronutrients intervention on protein nutritional status and dark adaptation function in men

Objective:Investigate the effects of nutritional intervention on dark adaptation function and plasma protein level,serum essential amnio acid contents in operator working in low illumination.Methods;34 soldiers of radar regiment,aged 18-29,were divided into experiment group and control group.Under normal dietary condition,a proper dose of taurine and micronutrients was taken orally by subjects of experiment group for 4 weeks,and the quick dark adaptation time was measured before experiment,2 week and 4 week of treatment.results:after treatment 2 weeks,the quick dark adaptation time was greatly shortened,after 4 weeks,the parameter was improved much more obviously.Otherwise,it was showed that the levels of prealbumin,transferrin and ceruloplasmina in plasma were increased,while the essential amino acid contents of Met,Iie,Leu,Phe and Val in serum decreased,But for the greatly individual difference,the changes were not statistical significance.Conclusion:A good nutritional status is important to maintain normal night vision,supplementation of taurine,vitamin A,vitamin B,vitamin C,zinc and selenium can effectively improve dark adaptation.