Concentrations of mercury (Hg) and selenium (Se) in afterbirth and their relations with various factors.
Environ Geochem Health
; 40(4): 1683-1695, 2018 Aug.
Article
em En
| MEDLINE
| ID: mdl-29492803
ABSTRACT
The aim of the study was to evaluate Hg and Se concentrations and SeHg molar ratios in the placenta, umbilical cord and fetal membranes, and to examine the relationship between the concentrations of the elements and selected factors. The study material consisted of the placenta, umbilical cord and fetal membranes obtained from 91 healthy women from northwestern and central Poland. In our study mean Hg and Se concentrations in afterbirth were ~ 0.01 mg/kg dry weight (dw) and ≤ 0.5 mg/kg dw, respectively. Correlation analysis showed negative relationships between placenta weight and Se concentration in the placenta and umbilical cord, as well as between placenta length and Se levels in the umbilical cord. We found negative correlations between THg concentration in the placenta and birth weight and between Se concentration in the placenta and umbilical cord and the morphological parameters of the placenta. Furthermore, we noted new types of interactions in specific parts of the afterbirth. In our study, SeTHg molar ratios ranged from 5 to 626; these values indicate protection against Hg toxicity.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Placenta
/
Selênio
/
Cordão Umbilical
/
Membranas Extraembrionárias
/
Mercúrio
Idioma:
En
Revista:
Environ Geochem Health
Ano de publicação:
2018
Tipo de documento:
Article
País de afiliação:
Polônia