Lamand M, Favier A, Pineau A
INRA, Laboratoire des Maladies Nutritionnelles, Saint-Genès-Champanelle.
Ann Biol Clin (Paris). 1990;48(7):433-42.
Trace elements analysis in hair is sometimes used by clinician for a diagnosis of nutritional deficiency. Hair contents are supposed to reflect the elements status on an extended period. Hair may be contaminated by environment and its mineral composition may be modified in the different steps of the analytical process. Experiments in well known physiological conditions show a wide variability of the analytical results. These results are poorly correlated to the nutritional status so their interpretation is difficult. An epidemiological use of samples obtained from a wide population may provide worthwhile informations to the clinician. It is necessary to be very careful interpreting results coming from isolated samples.
临床医生有时会通过分析头发中的微量元素来诊断营养缺乏症。头发中的成分被认为可以反映较长一段时间内的元素状况。头发可能会受到环境污染，并且其矿物质成分在分析过程的不同步骤中可能会发生改变。在已知生理条件下进行的实验表明，分析结果存在很大差异。这些结果与营养状况的相关性很差，因此难以对其进行解读。对从广泛人群中获取的样本进行流行病学研究，可能会为临床医生提供有价值的信息。在解读来自个别样本的结果时必须非常谨慎。
