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Environ Int ; 147: 106318, 2021 02.
Artigo em Inglês | MEDLINE | ID: mdl-33387882

RESUMO

Several studies suggest that organochlorine exposure can affect male reproductive functions, causing poor semen quality, endocrine disruption, or dysregulation of thyroid hormones. This study uses multiple linear regression (MLR) models to analyze the correlation between male reproductive functions and polychlorinated biphenyl (PCBs) congeners or p,p'-DDE levels in serum, semen, and indoor dust samples. Multiple comparisons were all adjusted using the false discovery rate (FDR). The results revealed that the PCB congener levels in seminal plasma were significantly associated with the quality parameters of human semen (i.e., sperm count, morphology, and motility) and thyroid hormones after adjusting for covariates, e.g., associations of the sperm concentration with levels of CB105 (ß = -0.323, 95% CI: -0.561, -0.085, p = 0.009), CB44 (ß = 0.585, 95% CI: 0.290, 0.880, p < 0.001), and CB66 (ß = -0.435, 95% CI: -0.728, -0.143, p = 0.004) in the seminal plasma were observed. Correlations between serum pollutants levels and the semen quality, reproductive hormones, or thyroid hormones were also observed. Moreover, our results demonstrate that the quantification of PCBs in seminal plasma can better describe male reproductive disorders than that in serum or dust. Organochlorine exposure measured in serum or dust, especially in seminal plasma, was associated with semen quality, as well as reproductive and thyroid hormones, thus suggesting that the impacts of persistent pollutants on male reproductive health require further investigation.


Assuntos
Resíduo Eletrônico , Poluentes Ambientais , Bifenilos Policlorados , China , Diclorodifenil Dicloroetileno , Exposição Ambiental/efeitos adversos , Poluentes Ambientais/toxicidade , Humanos , Masculino , Bifenilos Policlorados/toxicidade , Análise do Sêmen
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