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 ORIGINAL ARTICLE
Year : 2019  |  Volume : 23  |  Issue : 1  |  Page : 21-27

Risk assessment in mining-based industrial workers by immunological parameters as copper toxicity markers


Department of Biochemistry, RTM Nagpur University, Nagpur, Maharashtra, India

Correspondence Address:
Dr. Nirmalendu Nath
Department of Biochemistry, RTM Nagpur University, Lit Premises, Amravati Road, Nagpur - 440 033, Maharashtra
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijoem.IJOEM_116_18

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Background: Manifestation of certain health morbidity in copper dust–exposed subjects impels us to obtain a cogent view regarding the implicate relationship of immunoglobulin on health risk assessment in them. We present here immunological profile of copper pit worker and office employees residing in the vicinity. Rationale of this study is to delineate the risk factors involved for copper toxicity. Materials and Methods: Copper mine workers (n = 87) were selected from a copper mine at Malanjkhand. Blood metal concentration and immunological profile such as IgG, IgM, IgA, and IgE were analyzed from these subjects. Data analysis was carried out using proper statistical tools. Results: Chronically copper dust–exposed miners (N = 71) and office employees (N = 47) exhibited significantly higher contents of copper (P < 0.0001) when compared with normal control. Serum IgG and IgA were found to be elevated significantly (P < 0.0001) in them when compared with both office employees and normal control. Contrarily, significant decrease in serum IgM was observed in both the groups when compared with normal control (P < 0.0001). Serum IgE was found to be elevated more significantly only in miner when compared with normal control. Copper exhibited significant positive Pearson's correlation coefficient with IgE, IgG, and IgA (r = 0.39; r = 0.28; r = 0.21) but negative correlation (r = −0.39) with IgM. Odds ratio analysis validated that elevated levels of IgE in miner and decrease in levels of IgM in both groups were truly affected by increase in copper levels from normal to abnormal. Conclusion: Miners are prone to morbidity such as type 2 diabetes and respiratory discomfort (asthma and hypersensitivity) since imbalance in both IgM and IgE is known to be associated with such morbidity. Immunopathy observed in chronically exposed miners could be attributed to copper toxicity in them.






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