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作者通过测定正中神经纤维的传导速度分布(DCV),以观察无症状铅锌铜吸收增加对较慢和较快纤维传导速度的影响。观察组为金属板厂20名男性青铜铸工,年龄34～59岁,平均48岁,职业工龄2～17年,平均10年,血铅浓度22～59(平均39)μg/dl,其中9人血铅≥40μg/dl为高铅组,其余血铅在40μg/dl以下为低铅组,所有铸工平均每月饮酒283ml,他们均无铅中毒症状和体征或神经的及其他内源性疾病,也无人接触其他可以引起神经毒效应的化学物
The authors measured the median nerve fiber conduction velocity distribution (DCV), in order to observe the increase of asymptomatic lead-zinc copper absorption of slower and faster fiber conduction velocity. In the observation group, 20 male bronze castors were aged from 34 to 59 years with a mean age of 48 years and a working career of 2 to 17 years with an average of 10 years. Blood lead concentrations ranged from 22 to 59 (mean, 39 μg / dl), of whom 9 Blood Lead ≥40μg / dl for the high lead group, the remaining blood lead below 40μg / dl for the lead group, all castor average monthly drinking 283ml, they are lead-free poisoning symptoms and signs or neurological and other endogenous diseases, No one is exposed to other chemicals that can cause neurotoxic effects