Abstract |
Experimental studies have reported that pyrethroid insecticides affect male endocrine and reproductive function, but human data are limited. We recruited 161 men from an infertility clinic between years 2000-2003 and measured serum reproductive and thyroid hormone levels, as well as the pyrethroid metabolites 3-phenoxybenzoic acid (3PBA) and cis- and trans-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropane carboxylic acid (cis-DCCA and trans-DCCA) in spot urine samples. When adjusting for potential confounders, categories for all three metabolites, as well as their summed values, were positively associated with FSH (all p-values for trend <0.05). Statistically significant or suggestive positive relationships with LH were also found. In addition, cis-DCCA and trans-DCCA were inversely associated with inhibin B (p for trend=0.03 and 0.02, respectively). Finally, there was evidence that trans-DCCA was inversely associated with testosterone and free androgen index (the ratio of testosterone to sex hormone binding globulin; p for trend=0.09 and 0.05, respectively). The observed relationships were consistent with previous findings, but further research is needed for a better understanding of the potential association between pyrethroid insecticides and male reproduction.
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Authors | John D Meeker, Dana B Barr, Russ Hauser |
Journal | Reproductive toxicology (Elmsford, N.Y.)
(Reprod Toxicol)
Vol. 27
Issue 2
Pg. 155-60
(Apr 2009)
ISSN: 0890-6238 [Print] United States |
PMID | 19429394
(Publication Type: Journal Article, Research Support, N.I.H., Extramural)
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Chemical References |
- Benzoates
- Follicle Stimulating Hormone, Human
- Hormones
- Insecticides
- Pyrethrins
- Sex Hormone-Binding Globulin
- Thyroid Hormones
- inhibin B
- Testosterone
- 3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropane carboxylic acid
- Inhibins
- 3-phenoxybenzoic acid
- Luteinizing Hormone
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Topics |
- Adult
- Benzoates
(adverse effects, urine)
- Biotransformation
- Follicle Stimulating Hormone, Human
(blood)
- Hormones
(blood)
- Humans
- Inhibins
(blood)
- Insecticides
(adverse effects, urine)
- Luteinizing Hormone
(blood)
- Male
- Pyrethrins
(adverse effects, urine)
- Reproduction
(drug effects)
- Risk Assessment
- Sex Hormone-Binding Globulin
(analysis)
- Testosterone
(blood)
- Thyroid Hormones
(blood)
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