Aflatoxin B 1 albumin adducts in plasma and aflatoxin M 1 in urine are associated with plasma concentrations of vitamins A and E

Academic Article

Abstract

  • Background: Although aflatoxin exposure has been associated with micronutrient deficiency in animals, there are few investigations on the effects of aflatoxin exposure on micronutrient metabolism in humans. Objective: To examine the relationship between aflatoxin B 1 (AFB 1) albumin adducts (AF-ALB) in plasma and the aflatoxin M 1 (AFM 1) metabolite in urine and plasma concentrations of retinol (vitamin A) and α-tocopherol (vitamin E) in Ghanaians. Methods: A cross-sectional study of 147 adult participants was conducted. Blood and urine samples were tested for aflatoxin and vitamins A and E levels. Results: Multivariable analysis showed that participants with high AF-ALB (≥ 0.80 pmol/mg albumin) had increased odds of having vitamin A deficiency compared to those with lower AF-ALB [Odds Ratio (OR) = 2.61; CI = 1.03-6.58; p = 0.04]. Participants with high AF-ALB also showed increased odds of having vitamin E deficiency but this was not statistically significant (OR = 2.4; CI = 0.96-6.05; p = 0.06). Conversely, those with higher AFM 1 values had a statistically nonsignificant reduced odds of having vitamin A deficiency (OR = 0.31; CI = 0.09-1.02; p = 0.05) and a statistically significant reduced odds of having vitamin E deficiency (OR = 0.31; CI = 0.10-0.97; p = 0.04). Participants with high AFALB or high AFM 1 (≥ 437.95 pg/dL creatinine) were almost 6 times more likely to be hepatitis B virus surface antigen (HBsAg)-positive (OR = 5.88; CI = 1.71-20.14; p = 0.005) and (OR = 5.84; CI = 1.15-29.54; p = 0.03) respectively. Conclusions: These data indicate that aflatoxin may modify plasma micronutrient status. Thus, preventing aflatoxin exposure may reduce vitamin A and E deficiencies. © Hogrefe & Huber Publishers.
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    Author List

  • Obuseh FA; Jolly PE; Jiang Y; Shuaib FMB; Waterbor J; Ellis WO; Piyathilake CJ; Desmond RA; Afriyie-Gyawu E; Phillips TD
  • Start Page

  • 355
  • End Page

  • 368
  • Volume

  • 80
  • Issue

  • 6