Prepubertal organochlorine pesticide concentrations and age of pubertal onset among Russian boys
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2014/12/01
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Details
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Personal Author:Altshul LM ; Birnbaum LS ; Burns JS ; Hauser R ; Korrick SA ; Lam T ; Lee MM ; Patterson DG Jr. ; Revich B ; Sergeyev O ; Turner, Wayman E. ; Williams PL
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Description:BACKGROUND: In animal studies, organochlorine pesticide (OCP) exposure alters pubertal development; however, epidemiological data are limited and inconsistent. OBJECTIVE: To evaluate the associations of serum OCP concentrations [hexachlorobenzene (HCB), beta-hexachlorocyclohexane (beta-HCH), and p,p'-dichlorodiphenyldichloroethylene (p,p'-DDE)] with male pubertal onset. METHODS: In Chapaevsk, Russia, a town environmentally contaminated with OCPs, 350 8-9 year old boys with measured OCPs were enrolled during 2003-2005 and were followed annually for eight years. We evaluated three measures of pubertal onset: testicular volume (TV)>3 mL in either testis, or stage 2 or greater for genitalia (G2+), or pubic hair (P2+). We used multivariable interval-censored models to evaluate associations of OCPs (quartiles) with physician-assessed pubertal onset. RESULTS: In adjusted models, boys with higher HCB concentrations had later mean ages of TV>3 mL and P2+ (but not G2+). Mean age at attaining TV>3 mL was delayed 3.6 (95% CI: -2.6, 9.7), 7.9 (95% CI: 1.7, 14.0), and 4.7 months (95% CI: -1.4, 10.9) for HCB Q2, Q3, and Q4, respectively, compared to Q1 (trend p: 0.06). Boys with higher HCB concentrations reached P2+ 0.1 months earlier (95% CI: -5.8, 5.6) for Q2, 4.7 months later (95% CI: -1.0, 10.3) for Q3 and 4.6 months later (95% CI: -1.1, 10.3) for Q4 compared to Q1 (trend p: 0.04). There were no associations of serum beta-HCH and p,p'-DDE concentrations with age of pubertal onset. CONCLUSION: Higher prepubertal serum HCB concentrations were associated with later age of gonadarche and pubarche. [Description provided by NIOSH]
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ISSN:0160-4120
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Pages in Document:135-142
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Volume:73
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NIOSHTIC Number:nn:20045499
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Citation:Environ Int 2014 Dec; 73:135-142
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CAS Registry Number:
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Federal Fiscal Year:2015
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Performing Organization:Harvard School of Public Health
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Peer Reviewed:True
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Start Date:20050701
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Source Full Name:Environment International
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End Date:20280630
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Main Document Checksum:urn:sha-512:c2bdc421532810bf5116c9a53687edceaa86bd81094d0d6a0c18b2f992d9bccdf2487927025fb48e4b05d5d93aceecc1681b01c2471f5f44030573d06fc0cf7c
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