alexa Global burden of aflatoxin-induced hepatocellular carcinoma: a risk assessment.
Molecular Biology

Molecular Biology

Journal of Cell Science & Therapy

Author(s): Liu Y, Wu F

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Abstract BACKGROUND: Hepatocellular carcinoma (HCC), or liver cancer, is the third leading cause of cancer deaths worldwide, with prevalence 16-32 times higher in developing countries than in developed countries. Aflatoxin, a contaminant produced by the fungi Aspergillus flavus and Aspergillus parasiticus in maize and nuts, is a known human liver carcinogen. OBJECTIVES: We sought to determine the global burden of HCC attributable to aflatoxin exposure. METHODS: We conducted a quantitative cancer risk assessment, for which we collected global data on food-borne aflatoxin levels, consumption of aflatoxin-contaminated foods, and hepatitis B virus (HBV) prevalence. We calculated the cancer potency of aflatoxin for HBV-postive and HBV-negative individuals, as well as the uncertainty in all variables, to estimate the global burden of aflatoxin-related HCC. RESULTS: Of the 550,000-600,000 new HCC cases worldwide each year, about 25,200-155,000 may be attributable to aflatoxin exposure. Most cases occur in sub-Saharan Africa, Southeast Asia, and China where populations suffer from both high HBV prevalence and largely uncontrolled aflatoxin exposure in food. CONCLUSIONS: Aflatoxin may play a causative role in 4.6-28.2\% of all global HCC cases.
This article was published in Environ Health Perspect and referenced in Journal of Cell Science & Therapy

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