Mercury

Clarkson, Thomas W.; Hursh, John B.; Sager, Polly R.; Syversen, Tore

doi:10.1007/978-1-4613-0961-1_8

Cited by 97 publications

(38 citation statements)

References 128 publications

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“…Several studies have shown that dental fillings can liberate mercury that may be absorbed by the digestive tract 15,16 . We lacked statistics on the number of dental fillings in individuals in the sample, which prevents us from adjusting for this variable.…”

Section: Discussionmentioning

confidence: 99%

“…Metallic and inorganic forms of mercury are distributed equally among erythrocytes and plasma, while exposure to methylmercury causes higher levels in erythrocytes than in plasma. As a result, mercury levels in erythrocytes (Ery-Hg) and mercury levels in plasma (P-Hg) may be used as indicators of methylmercury and inorganic mercury, respectively 4,8,12,15 . Absorbed methylmercury is excreted mainly in faeces (approximately 90%) while inorganic mercury is excreted mainly in the urine 1,16 .…”

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confidence: 99%

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Estimation and validation of mercury intake associated with fish consumption in an EPIC cohort of Spain

Sanzo

Dorronsoro²,

Amiano³

et al. 2001

Public Health Nutr.

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Objective: To estimate mercury intake due to fish consumption among the individuals from Gipuzkoa participating in the European Prospective Investigation into Cancer (EPIC), and to validate the estimation of mercury exposure through diet, by measuring blood mercury level. Design and setting: The population for the EPIC Gipuzkoa cohort was recruited from 1992 to 1995. Each individual's diet was assessed regarding habitual intake over the previous year, using the diet history method. Blood samples were taken at the time of the interview. The mercury content of the fish species consumed was supplied by the Food Chemical Surveillance Programme in the Basque Country. Subjects: For the estimation, 8417 volunteers, men and women, aged 35±65 years, of the EPIC cohort; for the validation, a random sample of 120 individuals stratified by fish intake was taken.

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Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

Estimation and validation of mercury intake associated with fish consumption in an EPIC cohort of Spain

Sanzo

Dorronsoro²,

Amiano³

et al. 2001

Public Health Nutr.

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“…A 24-hr urine collection revealed elevated manganese excretion at 8.5 µg/L (reference normal, < 1.07 ug/L) (3) or 8.9 µg manganese/g creatinine (urine creatinine 713 mg/24 hr). The hair manganese level was 3,091 ppb of washed, acid-digested hair (reference normal, < 260 ppb hair) (4). A sample of hair from this child's older sibling also revealed an elevated manganese concentration, 1,988 ppb of washed, acid-digested hair.…”

mentioning

confidence: 87%

A child with chronic manganese exposure from drinking water.

Woolf

Wright

Amarasiriwardena

et al. 2002

Environ Health Perspect

149

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The patient's family bought a home in a suburb, but the proximity of the house to wetlands and its distance from the town water main prohibited connecting the house to town water. The family had a well drilled and they drank the well water for 5 years, despite the fact that the water was turbid, had a metallic taste, and left an orange-brown residue on clothes, dishes, and appliances. When the water was tested after 5 years of residential use, the manganese concentration was elevated (1.21 ppm; U.S. Environmental Protection Agency reference, < 0.05 ppm). The family's 10-year-old son had elevated manganese concentrations in whole blood, urine, and hair. The blood manganese level of his brother was normal, but his hair manganese level was elevated. The patient, the 10-year-old, was in the fifth grade and had no history of learning problems; however, teachers had noticed his inattentiveness and lack of focus in the classroom. Our results of cognitive testing were normal, but tests of memory revealed a markedly below-average performance: the patient's general memory index was at the 13th percentile, his verbal memory at the 19th percentile, his visual memory at the 14th percentile, and his learning index at the 19th percentile. The patient's free recall and cued recall tests were all 0.5-1.5 standard deviations (1 SD = 16th percentile) below normal. Psychometric testing scores showed normal IQ but unexpectedly poor verbal and visual memory. These findings are consistent with the known toxic effects of manganese, although a causal relationship cannot necessarily be inferred. Key words: ADHD, attention deficit hyperactivity disorder, manganese, manganese exposure, water, water pollution.

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“…• monitoramento de doses absorvidas -o monitoramento biológico da forma metálica, que é concentrada nos rins, é feito pela análise na urina (Clarkson et al, 1988 (Câmara & Corey, 1992).…”

Section: Outras Parasitoses Intestinais Como a Infecção Por Ascaris unclassified

Epidemiologia: contextos e pluralidade

Veras¹,

Barreto²,

Almeida-Filho³

et al. 1998

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Mercury

Cited by 97 publications

References 128 publications

Estimation and validation of mercury intake associated with fish consumption in an EPIC cohort of Spain

Estimation and validation of mercury intake associated with fish consumption in an EPIC cohort of Spain

A child with chronic manganese exposure from drinking water.

Epidemiologia: contextos e pluralidade

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