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锌是人体必需的微量元素,与人体50多种酶有关。由于锌在核酸代谢和蛋白质合成中起重要作用,处于生长发育旺盛阶段的青少年,对锌的需要量相对较多,所以更容易缺乏。严重锌缺乏可表现为侏儒症,还伴有厌食、性发育延迟等。轻度锌缺乏除有生长发育落后外,其他表现可正常,称为边缘性锌缺乏。国外发现少儿边缘性锌缺乏普遍。近年来我国学者报道我国少儿边缘性锌缺乏也常见,尤其在农村和山区,用锌剂治疗,收到显著的效果。
Zinc is an essential trace element of the human body, and the human body more than 50 kinds of enzymes. As zinc plays an important role in nucleic acid metabolism and protein synthesis, young people who are in a period of vigorous growth and development have a greater demand for zinc and are therefore more likely to be deficient. Serious zinc deficiency can be manifested as dwarfism, but also associated with anorexia, sexual retardation and so on. In addition to mild zinc deficiency, lack of growth and development, the other performance can be normal, known as marginal zinc deficiency. Abroad found that children with marginal zinc deficiency is widespread. In recent years, Chinese scholars reported that children with borderline zinc deficiency are also common in our country, especially in rural and mountainous areas. Treatment with zinc has received remarkable results.