Algerian Journal of Health Sciences
Volume 4, Numéro 2, Pages 106-110
2023-01-18
Exposure To Organophosphate Pesticides And Thyroid Function: A Systematic Review
Authors : Chefirat Bilel . Rezk-kallah Haciba . Bettayeb Hakima . Mesbah Ryma . Terbeche Ahlem .
Abstract
Organophosphate pesticides (OPs) are widely used for various agricultural, industrial and domestic purposes. Long-term exposure to these products leads to several health problems, including a potential disruption of the thyroid gland as suggested by recent studies. The purpose of this review is to examine the published scientific evidence on this effect. A systematic review of articles published between 1970 and 2019 was conducted using the PubMed and ScienceDirect databases. 22 studies were included in this review: 4 human studies, 16 in vivo studies and 2 in vitro studies. Almost all in vivo studies have shown impaired thyroid function with decreased T3 and T4 hormones and increased TSH levels, reflecting hypothyroidism. The findings from human studies converge with in vivo tests regarding the presence of a disruption in thyroid hormones, but diverge in the direction of this disruption. In the 2 in vitro studies, dysthyroidism was induced by OPs, although the diagnostic tools were different, in terms of cell lines or parameters explored. Studies on the impact of OPs on thyroid function remain insufficient. More clinical and empirical studies are needed with a standardized methodology that allows the comparison of the results of several studies.
Keywords
Organophosphate pesticides ; Endocrine disruption ; Thyroid hormone
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