摘要
本研究以低锌饲料喂养实验大鼠，观察了缺锌和补锌对动物血浆、肝脏、肾脏和毛中锌含量的影响；同时，测定了血球三磷酸腺苷（ＡＴＰ）含量及血浆中碱性磷酸酶（ＡＫＰ）、血管紧张素转化酶（ＡＣＢ）和甘露糖苷酶（Ｍａｎｎ）的活性变化，以比较评价这些生化指标对机体锌营养状况改变的灵敏性。研究结果表明，血浆锌含量，ＡＫＰ活性和体外加锌法测定的Ｍａｎｎ活性变化对动物缺锌的反应最灵敏。红细胞ＡＴＰ含量和ＡＣＥ活性虽然也受动物锌营养状况变化的影响，但其灵敏性不如上述三项指标。实验中未观察到毛锌含量的显著改变。
he effects of
zinc depletion and repletion on the indices for assessing zinc nutritional status were observed
in rats.The animaks were fed diets with different levels of zinc supplement following a low-zinc
diet intake for one month.The zinc content in plasma and tissues, the activity ofzinc
metalloenzymes in plasma and ATP content in red cells were deter-mined,The results indicated
that the zinc concentration in plasma,the acti-vity of alkaline pbosphatase and the stimulation of
mannosidase activity by adding zinc in vitro were responsible rapidly to zinc deficiency in
animals.The activity of angiotensin-converting enzymeand the ATP level were less sensitive
than the indices mentioned above.No significant change of zinc content in hair were detected in
present study.
出处
《解放军预防医学杂志》
CAS
北大核心
1994年第5期337-341,共5页
Journal of Preventive Medicine of Chinese People's Liberation Army
基金
国家自然科学基金
关键词
锌
营养状况
评价指标
zinc nutrition,Assessment,Indices
