The effects of occupational exposure to manganese fume on neurobehavioral and neurocognitive functions

dc.contributor.authorMehrifar, Younes
dc.contributor.authorBahrami, Mahshid
dc.contributor.authorSidabadi, Esmail
dc.contributor.authorPirami, Hamideh
dc.date.accessioned2020-12-07T07:56:57Z
dc.date.available2020-12-07T07:56:57Z
dc.date.issued2020-03-13
dc.description.abstractThis study aimed to measure concentrations of manganese fume in breathing zone (BZ) and blood among welders to assess neurocognitive and neurobehavioral functions among them. In this study 38 welders and 27 administrative employees participated. Q16 questionnaire was used to evaluate neurobehavioral symptoms. The computerized Stroop test and Continuous Performance Test (CPT) were used to assess neurocognitive functions. Sampling and analysis of manganese fumes in the BZ and blood samples were performed according to NIOSH-7300 and NIOSH-8005 methods, respectively. Average concentration of manganese in the welders’ BZ and blood was 0.81 ± 0.21 mg/m3 and 18.33 ± 5.84 µg/l. Frequency of neurobehavioral symptoms was significantly higher in welders compared with control group. Spearman correlation test showed a moderate correlation between Mn concentrations in the BZ and blood Mn levels (rs = 0.352). There were statistical moderate and strong correlations between the frequency of neurobehavioral symptoms and manganese concentrations in the BZ (r=0.504) and blood Mn levels (r=0.643).The Pearson correlation coefficient (r=0.433-0.690) obtained on the psychological tests showed a moderate to strong correlation between manganese concentrations in the welders’ BZ and blood and some indices of the Stroop test and CPT. The results of this study can confirm the effect of manganese inhalation on creating neurobehavioral and neurocognitive impairments in welders.en
dc.identifier.citationhttps://www.excli.de/index.php/excli/article/view/1854de
dc.identifier.issn1611-2156
dc.identifier.urihttp://hdl.handle.net/2003/39838
dc.identifier.urihttp://dx.doi.org/10.17877/DE290R-21729
dc.language.isoen
dc.publisherIfADo - Leibniz Research Centre for Working Environment and Human Factors, Dortmunden
dc.relation.ispartofseriesEXCLI Journal;Vol. 19 2020
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectWeldersen
dc.subjectManganese fumeen
dc.subjectBlood manganeseen
dc.subjectStroop testen
dc.subjectContinuous Performance Testen
dc.subject.ddc610
dc.titleThe effects of occupational exposure to manganese fume on neurobehavioral and neurocognitive functionsen
dc.title.alternativean analytical cross-sectional study among weldersen
dc.typeText
dc.type.publicationtypearticle
dcterms.accessRightsopen access
eldorado.dnb.zdberstkatid2132560-1
eldorado.secondarypublicationtrue

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