Mercury in neonatal scalp hair

Sikorski, R; Paszkowski, Tomasz; Szprengier-Juszkiewicz, Teresa

doi:10.1016/0048-9697(86)90015-x

Cited by 39 publications

(32 citation statements)

References 10 publications

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“…In the heavily polluted Minamata Bay, where the villagers consume mercury contaminated fish (11.4-39.0 µg mercury/g), the levels of mercury in hair was 191-705 µg mercury/g hair (Koos and Longo 1976;Harada 1982). However, in the less contaminated environments of Japan (Fujita and Takabatake 1977), Poland (Sikorski et al 1986), North Sea (Grandjean et al 1992), and coastal Chile (Bruhn et al 1995), the reported median levels of mercury for women were below 4 µg mercury/g hair. In Canada, 30% of Cree women tested (15-45 years old) showed hair mercury concentrations over 10 µg mercury/g (Wheatley and Paradis 1996) and women of James Bay (Girard and Dumont 1995) Relative changes in maternal hair mercury concentration by trimester.…”

Section: Discussionmentioning

confidence: 94%

Concentration of Mercury in Hair of Indigenous Mothers and Infants from the Amazon Basin

Barbosa

Silva

Dórea

1998

Arch Environ Contam Toxicol

103

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Hair mercury concentration, as an indicator of mercury body load, was studied in 251 samples of indigenous women and children living in selected areas of the Amazonian region. The mothers or women of child-bearing age, either non-Indians or Indians, and their children were sampled along the Madeira River and in the Kayapó reservation (Fresco River), respectively. Among the sampled individuals there were mothers with infants less than 2 years old. Total mercury in hair was determined by cold vapor atomic absorption spectrometry after alkaline digestion. The distribution of hair mercury concentration greater than 10 microg/g occurred in 67.4% of non-Indian women and 25% of Indian women; overall only 1% of non-Indian women had concentrations of hair mercury above 50 microg/g. In women of child-bearing age, the median and range of hair mercury concentration was 14.08 microg/g, and 0.8-94.7 microg/g for non-Indians, and 8.30 microg/g, and 0.8-13.3 microg/g for Indians. The correlation between maternal hair mercury and mercury in hair of infants (less than 2 years of age) still breast-feeding, was statistically significant only for non-Indians (r = 0.555 p < 0. 001). The correlation between length of breast-feeding and mercury concentration in infant's hair was significant for Indian children (r = 0.512; p = 0.029) but not for non-Indian children (r = 0.025; p = 0.832). A subsampling of 30 mothers had segmented hair analysis that showed a mean decrease of 20% in body burden during pregnancy, thus indicating the extent of placental transference of mercury to fetuses.

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Section: Discussionmentioning

confidence: 94%

Concentration of Mercury in Hair of Indigenous Mothers and Infants from the Amazon Basin

Barbosa

Silva

Dórea

1998

Arch Environ Contam Toxicol

103

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“…The analyses were performed at the Institute of Environmental and Occupational Medicine, University of Aarhus, Denmark, by atomic absorption spectrometry using a mercury hydride system (Madsen & Hansen, 1980;Hansen et al, 1983;Sikorski et al, 1986).…”

Section: Methodsmentioning

confidence: 99%

The associations of a marine diet with plasma lipids, blood glucose, blood pressure and obesity among the Inuit in Greenland

2000

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Objective: To analyse the associations between the intake of ®sh and marine mammals and risk factors for cardiovascular disease, ie lipid pro®le, fasting blood glucose, blood pressure and obesity, in a population whose average consumption of n-3 fatty acids is high compared with Western countries. Design: Information was obtained from a population survey in Greenland: interview data, clinical data and fasting blood samples were obtained from a random sample of Inuit from three towns and four villages. Subjects: Two-hundred and ®fty-nine adult Inuit (74% of the sample). Results: Marine diet was positively associated with serum high-density lipoprotein (HDL) and blood glucose and inversely with very-low-density lipoprotein (VLDL) and triglyceride. Association with low-density lipoprotein (LDL), diastolic and systolic blood pressure, waist ± hip ratio and body mass index were inconsistent and not statistically signi®cant. The pattern was similar within groups with low, medium and high consumption of marine food. Conclusions: There are statistically signi®cant associations between the consumption of marine food and certain lipid fractions in the blood also in this population with a very high average intake of marine food. The observation that blood glucose is positively associated with marine diet in a population survey is new and should be repeated. There was good agreement between the results for the reported consumption of seal and those for the biomarkers.

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“…Studies on birth weight and total mercury levels, measured in maternal hair or cord blood, have produced mixed results, with some reporting an inverse relationship (Foldspang and Hansen 1990; Sikorski et al 1986) and others showing no association (Grandjean et al 2001; Lucas et al 2004). In addition, one study of maternal occupational exposure to metallic mercury found no effect on birth weight (Fu 1993).…”

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confidence: 99%

Maternal Fish Consumption, Mercury Levels, and Risk of Preterm Delivery

Xue

Holzman²,

Rahbar³

et al. 2007

Environ Health Perspect

138

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BackgroundPregnant women receive mixed messages about fish consumption in pregnancy because unsaturated fatty acids and protein in fish are thought to be beneficial, but contaminants such as methylmercury may pose a hazard.MethodsIn the Pregnancy Outcomes and Community Health (POUCH) study, women were enrolled in the 15th to 27th week of pregnancy from 52 prenatal clinics in five Michigan communities. At enrollment, information was gathered on amount and category of fish consumed during the current pregnancy, and a hair sample was obtained. A segment of hair closest to the scalp, approximating exposure during pregnancy, was assessed for total mercury levels (70–90% methylmercury) in 1,024 POUCH cohort women.ResultsMercury levels ranged from 0.01 to 2.50 μg/g (mean = 0.29 μg/g; median = 0.23 μg/g). Total fish consumption and consumption of canned fish, bought fish, and sport-caught fish were positively associated with mercury levels in hair. The greatest fish source for mercury exposure appeared to be canned fish. Compared with women delivering at term, women who delivered before 35 weeks’ gestation were more likely to have hair mercury levels at or above the 90th percentile (≥ 0.55 μg/g), even after adjusting for maternal characteristics and fish consumption (adjusted odds ratio = 3.0; 95% confidence interval, 1.3–6.7).ConclusionThis is the first large, community-based study to examine risk of very preterm birth in relation to mercury levels among women with low to moderate exposure. Additional studies are needed to see whether these findings will be replicated in other settings.

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Mercury in neonatal scalp hair

Cited by 39 publications

References 10 publications

Concentration of Mercury in Hair of Indigenous Mothers and Infants from the Amazon Basin

Concentration of Mercury in Hair of Indigenous Mothers and Infants from the Amazon Basin

The associations of a marine diet with plasma lipids, blood glucose, blood pressure and obesity among the Inuit in Greenland

Maternal Fish Consumption, Mercury Levels, and Risk of Preterm Delivery

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