众所周知，长期接触低浓度肝脏毒物可致慢性化学性肝脏损害，但迄今对慢性中毒性肝病的诊断，尚缺乏理想的具有特异性、敏感性较高的诊断指标。探索慢性化学性肝脏损害亚临床指标，更是国内外普遍关注的课题。本研究从接受健康监护体检的职工中，随机选择了职业接触肝脏毒物且 It is well-known that long-term exposure to low concentrations of liver toxicants can cause chronic chemical liver damage, but so far the diagnosis of chronic toxic liver disease, the lack of an ideal specific, sensitive diagnostic indicators. To explore sub-clinical indicators of chronic chemical liver damage is a topic of widespread concern at home and abroad. In this study, workers who received physical examination for health care were randomly assigned to occupationally exposed liver toxicants