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某些金属元素能与毛发中角蛋白的巯基牢固结合,使这些金属元素蓄积其中。头发作为人体微量元素的排泄器官,与其他组织不同,一旦金属元素沉积其中,就不易再被重新吸收。就样品来说,头发有比血、尿等生化样品采集容易、性质稳定、易于保存、运送方便等特点。锌是人体必需的微量元素之一。人体缺锌会引起生长停滞,少年期性不发育,特发性低味觉和创伤愈合受损等病理状况。在青少年较普通出现的边缘性锌缺乏,使缺锌者处于低生长百分位数和低生化指标。许多人认为,发锌含量可以评价人体锌营养
Certain metal elements bind strongly to the thiol group of keratin in the hair, accumulating these metal elements. Hair as a human body excretion of trace elements, and other organizations, once the metal elements deposited in them, it is not easy to be reabsorbed. In terms of samples, the hair is easier to collect than biochemical samples such as blood and urine, and has the characteristics of stable properties, easy storage and convenient transportation. Zinc is one of the essential trace elements of the human body. Zinc deficiency causes growth arrest, adolescent retardation, idiopathic low taste, and impaired wound healing. Marginal zinc deficiency appears more commonly in adolescents, leaving zinc deficient persons at low growth percentiles and with low biochemical markers. Many people think that hair zinc content can evaluate human zinc nutrition