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Neurodevelopment of Amazonian Infants : Antenatal and Postnatal Exposure to Methyl- and Ethylmercury
Joint Authors
Dorea, Jose G.
Isejima, Cintya
Marques, Rejane C.
Source
Journal of Biomedicine and Biotechnology
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-04-26
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Neurodevelopment as Gesell development scores (GDSs) in relation to mercury exposure in infants (<6 months of age) of one urban center and two rural villages, respectively, of fisherman and cassiterite miners.
Mean total hair-Hg (HHg) concentrations of infants from Itapuã (3.95±1.8 ppm) were statistically (P=0.0001) different from those of infants from Porto Velho (3.84±5.5 ppm) and Bom Futuro (1.85±0.9 ppm).
Differences in vaccine coverage among these populations resulted in significantly higher (P=0.0001) mean ethylmercury (EtHg) exposure in urban infants (150 μg) than in infants from either village (41.67 μg, Itapuã; 42.39 μg, Bom Futuro).
There was an inverse significant (Spearman r=−0.2300; P=0.0376) correlation between HHg and GDS for infants from Porto Velho, but not for the rural infants from Bom Futuro (Spearman r=0.1336; P=0.0862) and Itapuã (Spearman r=0.1666; P=0.5182).
Logistic regression applied to variables above or below the median GDS showed that EtHg exposure (estimated probability=−0.0157; P=0.0070) and breastfeeding score (estimated probability=−0.0066; P=0.0536) score were significantly associated with GDS.
Conclusion.
In nurslings whose mothers are exposed to different levels of fish-MeHg (HHg), a higher score of neurological development at six months was negatively associated with exposure to additional TCV-EtHg.
Results should be interpreted with caution because of unaccounted variables.
American Psychological Association (APA)
Dorea, Jose G.& Marques, Rejane C.& Isejima, Cintya. 2012. Neurodevelopment of Amazonian Infants : Antenatal and Postnatal Exposure to Methyl- and Ethylmercury. Journal of Biomedicine and Biotechnology،Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-448305
Modern Language Association (MLA)
Dorea, Jose G.…[et al.]. Neurodevelopment of Amazonian Infants : Antenatal and Postnatal Exposure to Methyl- and Ethylmercury. Journal of Biomedicine and Biotechnology No. 2012 (2012), pp.1-9.
https://search.emarefa.net/detail/BIM-448305
American Medical Association (AMA)
Dorea, Jose G.& Marques, Rejane C.& Isejima, Cintya. Neurodevelopment of Amazonian Infants : Antenatal and Postnatal Exposure to Methyl- and Ethylmercury. Journal of Biomedicine and Biotechnology. 2012. Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-448305
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-448305