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Methyl mercury and inorganic mercury in Swedish pregnant women and in cord blood: influence of fish consumption.
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MedLine Citation:
PMID:  12676628     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We studied exposure to methyl mercury (MeHg) in Swedish pregnant women (total mercury [T-Hg] in hair) and their fetuses (MeHg in cord blood) in relation to fish intake. The women were recruited at antenatal care clinics in late pregnancy to participate in an exposure study of environmental pollutants. Fish consumption was evaluated using food frequency questionnaires including detailed questions on fish consumption. In addition, we determined inorganic mercury (I-Hg) and selenium (Se) in cord blood. On average, the women consumed fish (all types) 6.7 times/month (range 0-25 times/month) during the year they became pregnant. They reported less consumption of freshwater fish--species that might contain high concentrations of MeHg--during than before pregnancy. T-Hg in maternal hair (median 0.35 mg/kg; range 0.07-1.5 mg/kg) was significantly associated (R2 = 0.53; p < 0.001) with MeHg in cord blood (median 1.3 microg/L; range 0.10-5.7 microg/L). Both hair T-Hg and cord blood MeHg increased with increasing consumption of seafood (r = 0.41; p < 0.001 and r = 0.46; p < 0.001, respectively). Segmental hair analysis revealed that T-Hg closer to the scalp was lower and more closely correlated with MeHg in cord blood than T-Hg levels in segments corresponding to earlier in pregnancy. We found a weak association between Se (median 86 microg/L; range 43-233 microg/L) and MeHg in cord blood (r = 0.26; p = 0.003), but no association with fish consumption. I-Hg in cord blood (median 0.15 microg/L; range 0.03-0.53 microg/L) increased significantly with increasing number of maternal dental amalgam fillings.
Authors:
K Ask Björnberg; M Vahter; K Petersson-Grawé; A Glynn; S Cnattingius; P O Darnerud; S Atuma; M Aune; W Becker; M Berglund
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Environmental health perspectives     Volume:  111     ISSN:  0091-6765     ISO Abbreviation:  Environ. Health Perspect.     Publication Date:  2003 Apr 
Date Detail:
Created Date:  2003-04-04     Completed Date:  2003-07-15     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  0330411     Medline TA:  Environ Health Perspect     Country:  United States    
Other Details:
Languages:  eng     Pagination:  637-41     Citation Subset:  IM    
Affiliation:
Division of Metals and Health, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
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MeSH Terms
Descriptor/Qualifier:
Adult
Animals
Dental Amalgam
Diet
Environmental Exposure*
Female
Fetal Blood / chemistry*
Fishes
Food Contamination*
Humans
Maternal-Fetal Exchange*
Mercury / pharmacokinetics*
Methylmercury Compounds / pharmacokinetics*
Pregnancy
Seafood*
Sweden
Chemical
Reg. No./Substance:
0/Methylmercury Compounds; 7439-97-6/Mercury; 8049-85-2/Dental Amalgam
Comments/Corrections

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Full Text
Journal Information
Journal ID (nlm-ta): Environ Health Perspect
ISSN: 0091-6765
Article Information
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Print publication date: Month: 4 Year: 2003
Volume: 111 Issue: 4
First Page: 637 Last Page: 641
ID: 1241457
PubMed Id: 12676628

Methyl mercury and inorganic mercury in Swedish pregnant women and in cord blood: influence of fish consumption.
K Ask Bj?rnberg
M Vahter
K Petersson-Graw?
A Glynn
S Cnattingius
P O Darnerud
S Atuma
M Aune
W Becker
M Berglund
Division of Metals and Health, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.


Article Categories:
  • Research Article


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