Reproductive toxicity in male juvenile rats: Antagonistic effects between isolated agrochemicals and in binary or ternary combinations
| Autor: | Cinthia Castro do Nascimento, Paloma da Cunha de Medeiros, Deborah Navit de Carvalho Cavalcante, Juliana Elaine Perobelli, Luciana Le Sueur-Maluf, Gustavo Fonseca, Marcella da Silva Araujo Santiago, Mariana Simões Garcia |
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| Rok vydání: | 2021 |
| Předmět: |
Male
Agrochemical Health Toxicology and Mutagenesis 0211 other engineering and technologies 02 engineering and technology Complex Mixtures Endocrine Disruptors 010501 environmental sciences Biology 01 natural sciences Environmental pollution Toxicology chemistry.chemical_compound Testis Toxicity Tests Animals Juvenile GE1-350 Mancozeb Acephate 0105 earth and related environmental sciences Prepuberty 021110 strategic defence & security studies Food security Carbendazim business.industry Public Health Environmental and Occupational Health General Medicine Pollution Rats Environmental sciences TD172-193.5 chemistry Agriculture Chemical mixture Linear Models Agrochemicals Reproductive toxicity business Brazil |
| Zdroj: | Ecotoxicology and Environmental Safety, Vol 209, Iss, Pp 111766-(2021) |
| ISSN: | 0147-6513 |
| DOI: | 10.1016/j.ecoenv.2020.111766 |
| Popis: | The management of agrochemicals in Brazilian agriculture impacts global environmental sustainability and food security, since this country is one of the major agro-food exporters in the world. Acephate, carbendazim, and dithiocarbamates (DTCs) such as mancozeb, are among the most detected agrochemicals in Brazilian agro-food products, occurring in combination in several crops, especially in fruit cultures. The present study evaluated the impact of the exposure to isolated agrochemicals and all the combined possible mixtures (binary and ternary forms) on the reproductive parameters of male juvenile rats, known to be a vulnerable biological system and developmental window. Data were analyzed using Generalized Linear Models (GzLM), considering each agrochemical as an independent factor. The study revealed higher reproductive toxicity exerted by isolated agrochemicals when compared to the combined treatments, which exhibited mostly an antagonistic effect. Results suggest endocrine disruptive effects of each one separately on the weight of reproductive organs and testicular histomorphometry, besides changes in testicular SOD activity. The full factorial experimental design employed here allowed us to conclude that it is not possible to scale-up the effects of the isolated treatments to the mixtures, showing how difficult it is to know beforehand the response and cross-talk among the multiple physiological mechanisms disturbed by complex mixtures. Considering that food products are shared on a global scale and that some of these three agrochemicals have already been prohibited in EU countries, the consumption of some Brazilian products puts global human health at risk, that of children. |
| Databáze: | OpenAIRE |
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