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Assessment of multiple mycotoxin exposure and its association with food consumption: a human biomonitoring study in a pregnant cohort in rural Bangladesh

Urheber*innen
/persons/resource/nicholas.kyei

Kyei,  Nicholas
Potsdam Institute for Climate Impact Research;

Cramer,  Benedikt
External Organizations;

Humpf,  Hans-Ulrich
External Organizations;

Degen,  Gisela H.
External Organizations;

Ali,  Nurshad
External Organizations;

/persons/resource/gabrysch

Gabrysch,  Sabine
Potsdam Institute for Climate Impact Research;

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26966oa.pdf
(Verlagsversion), 978KB

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Zitation

Kyei, N., Cramer, B., Humpf, H.-U., Degen, G. H., Ali, N., Gabrysch, S. (2022): Assessment of multiple mycotoxin exposure and its association with food consumption: a human biomonitoring study in a pregnant cohort in rural Bangladesh. - Archives of Toxicology, 96, 7, 2123-2138.
https://doi.org/10.1007/s00204-022-03288-0


Zitierlink: https://publications.pik-potsdam.de/pubman/item/item_26966
Zusammenfassung
Aflatoxins (AFs), ochratoxin A (OTA), citrinin (CIT), fumonisin B1 (FB1), zearalenone (ZEN), and deoxynivalenol (DON) are mycotoxins that may contaminate diets, especially in low-income settings, with potentially severe health consequences. This study investigates the exposure of 439 pregnant women in rural Bangladesh to 35 mycotoxins and their corresponding health risks and links their exposure to certain foods and local stimulants. Overall, 447 first-morning urine samples were collected from pregnant women between July 2018 and November 2019. Mycotoxin biomarkers were quantified by DaS-HPLC–MS/MS. Urinary concentration of frequently occurring mycotoxins was used to estimate dietary mycotoxin exposure. Median regression analyses were performed to investigate the association between the consumption of certain foods and local stimulants, and urinary concentration of frequently occurring mycotoxins. Only in 17 of 447 urine samples (4%) were none of the investigated mycotoxins detected. Biomarkers for six major mycotoxins (AFs, CIT, DON, FB1, OTA, and ZEN) were detected in the urine samples. OTA (95%), CIT (61%), and DON (6%) were most frequently detected, with multiple mycotoxins co-occurring in 281/447 (63%) of urine samples. Under the lowest exposure scenario, dietary exposure to OTA, CIT, and DON was of public health concern in 95%, 16%, and 1% of the pregnant women, respectively. Consumption of specific foods and local stimulants—betel nut, betel leaf, and chewing tobacco—were associated with OTA, CIT, and DON urine levels. In conclusion, exposure to multiple mycotoxins during early pregnancy is widespread in this rural community and represents a potential health risk for mothers and their offspring.