Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/4748
Título: Occupational exposure to aflatoxin B1 and ochratoxin A: co-exposure in swine production
Autor: Viegas, Susana
Veiga, Luísa
Almeida, Ana
Figueiredo, Paula
Carolino, Elisabete
Palavras-chave: Occupational health
Co-exposure
Risk assessment
Mycotoxins
Aflatoxin B1
Ochratoxin A
Swinery
Portugal
Data: Fev-2015
Citação: Viegas S, Veiga L, Almeida A, Figueiredo P, Carolino E. Occupational exposure to aflatoxin B1 and ochratoxin A: co-exposure in swine production. In: Arezes PM, Baptista JS, Barroso MP, Carneiro P, Cordeiro P, Costa N, et al, editors. Occupational safety and hygiene III – SHO-2015, International Symposium on Occupational Safety and Hygiene, Guimarães (Portugal), 12-13 February 2015. Guimarães: Sociedade Portuguesa de Segurança e Higiene Ocupacionais; 2015. p. 424-6.
Resumo: The most common scenario in occupational settings is the co-exposure to several risk factors. This aspect has to be considered in the risk assessment process because can alter the toxicity and the health effects when dealing with a co-exposure to two or more chemical agents. A study was developed aiming to elucidate if there is occupational co-exposure to aflatoxin B1 (AFB1) and ochratoxin (OTA) in Portuguese swine production. To assess occupational exposure to both mycotoxins, a biomarker of internal dose was used. The same blood samples from workers of seven swine farms and controls were consider to measure AFB1 and OTA. Twenty one workers (75%) showed detectable levels of AFB1 with values ranging from <1 ng/ml to 8.94 ng/ml and with significantly higher concentration when compared with controls. In the case of OTA, there wasn't found a statistical difference between workers and controls and the values for workers group ranged from 0.34 ng/ml to 3.12 ng/ml and 1.76 ng/ml to 3.42 ng/ml for control group. The results suggest that occupational exposure to AFB1 occurs. However, in the case of OTA results, seems that food consumption plays an important role in both groups exposure. The results claim attention for the possible implications on health of this co-exposure.
Peer review: yes
URI: http://hdl.handle.net/10400.21/4748
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