Item

Analysis of aflatoxin biomarkers in the hair of experimental animals.

Mupunga, Innocent
Janse Van Rensburg, IIse
Luthuli, Nokuthula
Abafe, Ovokoreyo A.
Shai, Leshweni J.
Katerere, David R.
Citations
Altmetric:
Abstract
Analysis of body fluids and tissues of aflatoxin exposed individuals for the presence of aflatoxins and aflatoxin metabolites has emerged as a reliable indicator of exposure and metabolism of aflatoxins. However, current aflatoxin biomarkers are not appropriate for investigating the long-term effects of aflatoxin exposure. In this explorative study, we investigated the analysis of hair as a complementary or alternative matrix for the assessment of biomarkers of long-term aflatoxin exposure. Three groups of guinea pigs were orally dosed with 5 ugkg1bw1, 50 ugkg1bw1, and 100 ugkg1bw1 of AFB1. Urine and hair samples were collected on days 0, 1, 2, 3, 7, 30, 60, and 90 and analysed for AFB1 and AFM1 using UHPLC-MS/MS. AFB1 and AFM1 were detected in 75% and 13.6%, respectively, of the day 1 to day 7 urine samples. AFB1 was detected in hair samples collected from day 3 up to day 60. This is the first report to confirm the deposition of AFB1 in the hair of experimental animals. These findings indicate that hair analysis has the potential to provide an accurate long-term historical record of aflatoxin exposure with potentially important implications for the field of aflatoxin biomarkers.
Description
Date
2021-08-16
Journal Title
Journal ISSN
Volume Title
Publisher
MDPI
Research Projects
Organizational Units
Journal Issue
Keywords
Aflatoxin biomakers, AFM1, AFB1, Hair, ULHPC-MS/MS
Citation
Embedded videos