Hum. Reprod. Advance Access originally published online on December 16, 2005
Human Reproduction 2006 21(3):657-665; doi:10.1093/humrep/dei397
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Time to pregnancy as a function of male and female serum concentrations of 2,2'4,4'5,5'-hexachlorobiphenyl (CB-153) and 1,1-dichloro-2,2-bis (p-chlorophenyl)-ethylene (p,p'-DDE)
1 Division of Occupational and Environmental Medicine and Psychiatric Epidemiology, Lund University Hospital, SE-221 85 Lund, Sweden, 2 Department of Occupational Medicine, Aarhus University Hospital, Aarhus, Denmark, 3 Centre for Arctic Environmental Medicine, Nuuk, Greenland, Denmark, 4 Laboratory of Human Reproduction, Kharkiv State Medical University, Kharkiv, Ukraine, 5 Department of Environmental Toxicology, National Institute of Hygiene, Warsaw, Poland and 6 http://www.inuendo.dk
7 To whom correspondence should be addressed. E-mail: anna.axmon{at}med.lu.se
BACKGROUND: Persistent organochlorine pollutants (POP) may affect both the female and male reproductive system in animals as well as in humans. METHODS: Blood samples were collected from pregnant women and their partners from Greenland, Warsaw and Kharkiv, and from a cohort of Swedish fishermens wives. Blood samples were analysed for 2,2',4,4',5,5'-hexachlorobiphenyl (CB-153) and 1,1-dichloro-2,2-bis (p-chlorophenyl)-ethylene (p,p'-DDE). Information on the participants fertility, measured as time to pregnancy (TTP), was collected. In total, 778 men and 1505 women were included in the analyses. RESULTS: The data from Warsaw, Kharkiv and the Swedish fishermens wives indicated no effect of either male or female exposure to POP on TTP. However, among men and women from Greenland, there seemed to be an association between serum concentrations of CB-153 and p,p'-DDE and prolonged TTP. Due to the strong intra-individual correlation between CB-153 and p,p'-DDE in the Greenlandic population, it was not possible to determine whether the risk was associated with CB-153 or p, p'-DDE or was an interaction between the two compounds. CONCLUSIONS: The overall results of the present study create a somewhat ambiguous pattern, but give some support to the idea that dietary POP exposure might be harmful for couple fertility.
Key words: female exposure/fertility/male exposure/persistent organochlorine pollutants/seafood consumption