论文部分内容阅读
目的探讨锰对作业工人神经行为功能的影响。方法用个体空气采样器采集空气中的锰,确定时间加权平均接触浓度,按照不同接触浓度将工人分为接触组和对照组,对工人的症状、体征进行检测,并采用美国普度大学提供的神经行为功能测试组合对工人的神经行为功能进行测试。结果接触组与对照组的症状体征检出率比较,差异无统计学意义(P>0.05)。在神经行为功能测试中,接触组的集合试验、Benton视觉保持力测试得分和插板试验非利手、双手的插板数均低于对照组,差异有统计学意义(P<0.01)。接触组在孔稳定静止试验中四、五、六、七、八孔右手和六孔左手的碰壁次数均高于对照组,差异有统计学意义(P<0.05)。结论接触高剂量锰尘的工人在早期尚无自觉症状的情况下,神经行为功能已经发生改变,神经行为功能可作为早期锰接触神经损害的检测指标。
Objective To explore the effect of manganese on the neurobehavioral function of workers. Methods Individual air samplers were used to collect the manganese in the air and determine the time-weighted average exposure concentration. Workers were divided into the exposure group and the control group according to different exposure concentrations. The symptoms and signs of the workers were detected. The nerve supplied by Purdue University The behavioral functional test combination tests the worker’s neurobehavioral function. Results There was no significant difference in the detection rate of symptoms and signs between the exposure group and the control group (P> 0.05). In the neurobehavioral functional tests, the group test, the Benton visual retention test score, the non-profit hands and the number of hands with both hands in the exposure group were all lower than those in the control group (P <0.01). The contact times of four, five, six, seven, eight-hole right-handed and six-hole left-handed rats in the static group were all higher than those in the control group (P <0.05). CONCLUSIONS: Workers exposed to high doses of manganese dust had altered neurobehavioral functions in the absence of early symptoms, and neurobehavioral function could be used as a predictor of early manganese exposure to nerve damage.