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. 2018 Apr:77:103-108.
doi: 10.1016/j.reprotox.2018.02.008. Epub 2018 Feb 21.

Male urinary biomarkers of antimicrobial exposure and bi-directional associations with semen quality parameters

Affiliations

Male urinary biomarkers of antimicrobial exposure and bi-directional associations with semen quality parameters

Melissa M Smarr et al. Reprod Toxicol. 2018 Apr.

Abstract

Antimicrobials including parabens, triclosan, and triclocarban have endocrine disrupting properties. Among 501 male partners of couples planning to become pregnant, preconception urinary biomarkers of parabens, triclosan and triclocarban exposure were quantified in spot urine samples. Men also provided two fresh semen samples collected approximately one month to undergo 24-h semen quality analysis. Linear mixed-effects models, adjusted for creatinine, race, age and body mass index, were utilized to assess the relationship between log transformed chemical concentrations rescaled by their standard deviations and semen parameters. Methyl, ethyl and butyl parabens, were associated with diminished sperm count and several sperm motility parameters. Hydroxylated paraben metabolites and triclosan were significantly positively associated with select semen quality parameters. Overall, our findings suggest that specific urinary parabens found in consumer goods (methyl, ethyl and butyl parabens) may adversely impact sperm quality parameters among reproductive-age male partners of couples trying for pregnancy.

Keywords: Antimicrobials; Parabens; Semen quality; Triclocarban; Triclosan.

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Conflict of interest statement

Competing Financial Interests: The authors declare they have no actual or potential competing financial interests.

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