本文選題：職業(yè)性錳接觸　切入點：UHVA　出處：《山西醫(yī)科大學》2017年碩士論文　論文類型：學位論文

【摘要】：目的:從多巴胺能神經(jīng)毒性的角度研究職業(yè)性錳接觸對職業(yè)人群的危害,探討職業(yè)性錳接觸對工人機體神經(jīng)損害的影響。方法:對某鋼鐵集團修造公司中錳作業(yè)環(huán)境進行監(jiān)測,選擇該鋼鐵企業(yè)中男性接觸錳煙塵危害的電焊工150人作為錳接觸組,同時將該鋼鐵企業(yè)的能源動力廠的男性水處理工162人作為對照組。收集各組工人一般情況,如工作制度、年齡、職業(yè)工齡史、吸煙等,同時應用精神狀態(tài)量表(MMSE)、畫鐘測試(CDT)和語言流暢性方式(VFT)測驗錳接觸組和對照組工人的神經(jīng)行為認知功能、各組工人的個人癥狀與體征,綜合測評其神經(jīng)功能損害程度。依據(jù)國家職業(yè)衛(wèi)生標準,監(jiān)測作業(yè)環(huán)境空氣中錳及其化合物、NOx、O3的含量;測定內(nèi)暴露劑量尿錳的濃度用石墨爐原子吸收分光光度法。經(jīng)ELISA試劑盒檢測對錳接觸和對照組工人尿高香草酸(UHVA)表達水平進行檢測,經(jīng)ELISA試劑盒檢測錳接觸工人和對照組工人催乳素(PRL)、parkin表達水平。以尿錳分組,比較不同接觸組中UHVA、PRL、Parkin表達水平。結果:在錳接觸組,其作業(yè)場所中的錳及其化合物的濃度(0.120±0.020)、氮氧化物濃度(1.073±0.079)均高于對照組(0.046±0.023、0.919±0.113),有統(tǒng)計學意義(P0.05)。錳接觸組VFT(39.90±2.70)及神經(jīng)行為認知功能測試(72.64±3.11)低于對照組(41.49±2.08;74.51±2.31),有統(tǒng)計學意義(P0.05);且不同接觸組之間比較,高接觸組中VFT(37.45±1.61、69.68±2.16)及神經(jīng)行為認知功能測試均低于中、低接觸組(40.55±2.54、41.13±2.27;74.36±2.51、73.31±2.73),有統(tǒng)計學意義(P0.05)。錳接觸組的個人癥狀與體征調(diào)查中,在乏力、注意力不集中、焦慮、易怒的陽性率(11.3%;12.0%;8.7%;6.7%)均高于對照組(4.9%;5.6%;3.1%;1.9%),均有統(tǒng)計學意義(P0.05)。錳接觸組(6.78±1.395)與對照組UHVA水平(4.97±1.242)比較,差異有統(tǒng)計學意義(P0.05),在錳接觸組中,不同接觸組間UHVA水平比較,中接觸組(7.10±1.493)與低工齡(6.37±1.128)和高接觸組(6.54±1.279)比較,差異均有統(tǒng)計學意義(P0.01)。錳接觸組(12.63±3.108)與對照組(11.10±2.819)的血清PRL表達水平比較,差異有統(tǒng)計學意義(P0.05),錳接觸組中不同接觸組之間血清PRL表達水平經(jīng)倆倆比較,中接觸組(14.02±2.859)與低工齡(11.56±2.865)、中接觸組與高接觸組(10.90±2.453)比較,差異均有統(tǒng)計學意義(P0.01)。錳接觸組在parkin表達水平(0.559±0.219)上低于對照組(0.639±0.187),有統(tǒng)計學意義(P0.05),錳接觸組中不同接觸組之間parkin表達水平經(jīng)倆倆比較,高接觸組parkin蛋白表達水平(0.655±0.220)明顯低于中、低接觸組(0.574±0.212、0.436±0.176),有統(tǒng)計學意義(P0.05)。相關性分析顯示,其中神經(jīng)行為認知功能測試與UHVA、血清PRL表達水平呈負相關關系((rHVA=-0.577,P0.01;(rPRL=-0.394,P0.01),神經(jīng)行為認知功能測試與Parkin表達水平呈現(xiàn)正相關關系(rparkin=0.675,P0.01)。結論:Ⅰ.職業(yè)性錳接觸引起了一定的神經(jīng)行為認知功能改變。Ⅱ.錳接觸改變了多巴胺能神經(jīng)遞質(zhì)表達水平,且隨錳接觸的時間,影響其神經(jīng)系統(tǒng)行為認知功能以及多巴胺能神經(jīng)遞質(zhì)表達的程度。Ⅲ.parkin蛋白表達水平可能作為早期錳中毒的神經(jīng)毒性指標。
[Abstract]:Objective: from the perspective of dopaminergic neurotoxicity of manganese exposure on occupation occupation harm people, explore the occupation of effects of manganese exposure on human nerve damage to the workers. Methods: monitoring of a steel group company built of manganese in the work environment, the iron and steel enterprises in men exposed to manganese smoke welders 150 as exposed to manganese at the same time, the iron and steel enterprise group, the power plant water treatment workers 162 men as control group were collected. Workers in general, such as working system, age, occupation age history, smoking and so on, at the same time the application of mental state scale (MMSE), clock drawing test (CDT) and verbal fluency (VFT way) test of manganese exposure group and the control group of workers neurobehavioral cognitive function, symptoms and signs of each individual workers, the comprehensive evaluation of the degree of neurological damage. According to the national health standard occupation, work environment monitoring Manganese and its compounds in the air, NOx, O3 content; Determination of exposure dose of manganese in urine by spectrophotometry by graphite furnace atomic absorption. The ELISA kit to detect the contact and control workers urinary homovanillic acid (UHVA) on manganese levels were detected by ELISA kit, detection and control of manganese exposed workers group of workers (PRL), prolactin. The expression level of parkin in urine manganese group, UHVA, compare the different contact group PRL, the expression level of Parkin. Results: in manganese exposure group, the concentration of manganese and its compounds in their workplace in the (0.120 + 0.020), the concentration of nitrogen oxides (1.073 + 0.079) were higher than the control group (0.046 + 0.023,0.919 + 0.113), there was statistical significance (P0.05). VFT manganese exposure group (39.90 + 2.70) cognitive function and neurobehavioral test (72.64 + 3.11) is lower than that of control group (41.49 + 2.08; 74.51 + 2.31), there was statistical significance (P0.05); and the comparison between different contact group, high contact 緇勪腑VFT(37.45鹵1.61,69.68鹵2.16)鍙婄緇忚涓鴻鐭ュ姛鑳芥祴璇曞潎浣庝簬涓，

本文編號：1611532