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Aflatoxin M-1 in raw cow milk and associated hepatocellular carcinoma risk among dairy farming households in Malawi

机译:黄金牛奶中黄曲霉毒素M-1和Malawi奶牛家庭中的相关肝细胞癌风险

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摘要

In the present study, a total of 112 raw milk samples were collected between October and December of 2018 from dairy farming households in Malawi and analyzed for aflatoxin M1 (AFM1) using VICAM aflatest fluorometry procedure. These data together with the consumption data obtained through a milk consumption frequency questionnaire were used for the calculation of AFM(1) exposure and its association with hepatocarcinoma (HCC) risk in dairy farming population. Average daily milk intake by children and adults were approximately 300 +/- 0.07 and 541.7 +/- 0.14 mL, respectively. All raw milk samples tested positive to AFM(1) averaging 0.551 mu g/L. Probable mean daily exposure to AFM(1) for adults was 4.98 +/- 7.25 ng/kg BW/day almost half that of children (8.28 +/- 11.82 ng/kg BW/day). Estimated risk of AFM(1)-induced HCC associated with consumption of milk among children and adults were 0.038 and 0.023 cases per 100,000 individuals per year, respectively. Although the results of this investigation suggest a low risk of HCC, other negative health effects of AFM(1) justify its continuous monitoring and update of the risk assessment. This work presents the first insight in the occurrence of AFM(1) in cow milk in Malawi as well as associated AFM(1) exposure in dairy farming population.
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