Hair mercury (signature of fish consumption) and cardiovascular risk in Munduruku and Kayabi Indians of Amazonia

Dórea, José G.; Souza, Jurandir Rodrigues de; Rodrigues, Patrícia; Ferrari, Íris; Barbosa, Antônio C.

doi:10.1016/j.envres.2004.04.007

Cited by 82 publications

(74 citation statements)

References 58 publications

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“…Sabe-se que o peixe é uma importante fonte proteica, rico em aminoácidos sulfurados e em ácidos graxos insaturados, o que o torna um importante fator protetor contra doenças cardiovasculares 28 e outros processos degenerativos associados a substâncias tóxicas oxidantes presentes no ambiente 29,30 .…”

Section: Discussionunclassified

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Prevalência de hipertensão arterial em comunidades ribeirinhas do Rio Madeira, Amazônia Ocidental Brasileira

Oliveira¹,

Mourão²,

Gomes³

et al. 2013

Cad. Saúde Pública

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Section: Discussionunclassified

“…Cerca de 80% da população adulta dessa região consome peixe mais de 3 vezes na semana e tem acesso relativamente limitado ao açúcar e a outros itens com maior poder calórico. Essa característica pode estar influenciando diretamente na prevalência de HAS, particularmente em razão das propriedades nutritivas do consumo de peixe 29,30 .…”

Section: Discussionunclassified

Prevalência de hipertensão arterial em comunidades ribeirinhas do Rio Madeira, Amazônia Ocidental Brasileira

Oliveira¹,

Mourão²,

Gomes³

et al. 2013

Cad. Saúde Pública

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“…Some authors have recently minimized the importance of mercury exposure in the Amazonian region, suggesting that despite high concentrations of methyl mercury in fish, daily consumption of large amounts of this central and highly nutritious food over the course of a lifetime, poses no health hazards for Amazonians (Do´rea, 2003(Do´rea, , 2004Do´rea et al, 2005). There has been the suggestion that based on the general health status of the population, ''normal'' values higher than those proposed by WHO could be established in the Amazon (Santos et al, 2002).…”

Section: Discussionmentioning

confidence: 99%

“…During the last decade, a large number of exposure assessments of fish-eating populations have been conducted in different countries of the Amazon (Barbosa et al, 1997;Lebel et al, 1997;Cordier et al, 1998;Dolbec et al, 2001;Santos et al, 2003;Passos et al, 2003a;Gonc¸alves and Gonc¸alves, 2004;Webb et al, 2004;Do´rea et al, 2005;Bastos et al, 2006;Pinheiro et al, 2006). However, little attention has been given to the importance of mercury intake in these populations, although a limited number of studies have tried to estimate the rates of mercury intake Henshel, 1996, 2000;Bidone et al, 1997;Hacon et al, 1997;Kehrig et al, 1998;Fre´ry et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

Daily mercury intake in fish-eating populations in the Brazilian Amazon

Passos

Silva

Lemire

et al. 2007

J Expo Sci Environ Epidemiol

113

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Although high levels of fish consumption and bioindicators of mercury exposure have been reported for traditional populations in the Amazon, little is known about their actual daily intake of Hg. Using an ecosystem approach, calculate daily mercury intake in adult fish-eaters, examine the relations between mercury intake and bioindicators of exposure and the factors that influence these relations. A cross-sectional dietary survey on fish and fruit consumption frequency was carried out with 256 persons from six villages of the Tapajo´s River. Fish portion per meal was determined. Mercury concentration was determined for 1123 local fish specimens. Daily mercury intake (mg/kg/day) was determined for men and women from each village using the average fish-mercury concentration for the fish caught in their fishing zone, the average quantity of fish per meal, fish-species frequency consumption and participants' body weight. Fish-mercury averaged 0.33 mg/g70.33. Daily mercury intake varied between 0 and 11.8 mg/kg/day (mean 0.92 mg/kg/day70.89) and varied by gender and village. Mean blood-and hair-mercury were 58.7736.1 mg/l and 17.9711.5 mg/g, respectively. There was a strong and positive relation between blood-mercury and daily mercury intake, with an inverse relation for fruit intake and schooling; significant variations were observed with immigrant status, and among villages. Hair-mercury was directly associated with daily mercury intake and inversely related to schooling and fruit consumption. Fruit consumption modified the relation between daily mercury intake and blood-mercury levels: for the same daily mercury intake, persons eating more fruit had lower blood-mercury concentrations (ANCOVA Interaction term: F ¼ 10.9, Po0.0001). The median difference of the ratio of blood-mercury to daily mercury intake between low and high fruit consumers was 26, representing a 26.3% reduction. These findings reveal high levels of daily mercury intake. Rigorous studies for developing risk-based reference doses in the Amazon should be undertaken to orient viable risk-management strategies to reduce exposure, while maintaining fish diet.

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“…A large number of exposure assessments of fish-eating populations have been conducted in many parts of the huge Amazon region, using blood and/or hair as biomarkers to study communities environmentally exposed through their fish diet (Campos 2001;Dorea 2003;Dorea et al 2005;Santos et al 2007;Hacon et al 2008;. Fish has always been an important item in the diet for Amazonians and per se is their best source of essential nutrients.…”

Section: Introductionmentioning

confidence: 99%

Mercury and methylmercury concentration assessment in children's hair from Manaus, Amazonas state, Brazil

et al. 2012

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The present study evaluated Hg and MeHg content in hair samples of 201 children 2 to 7 years old, living in six neighborhoods of the city of Manaus, Amazonas State, Brazil. In general, the total Hg and MeHg median ranges in hair were similar (0.91 to 1.71 mg kg -1 ) except for the São Jose neighborhood, which was lower (0.16 mg kg -1 ). De spite the fact that the Manaus population consumes fish as part of the normal dietary intake, the Hg hair levels were below the level for an adult population not exposed to mercury (2.0 mg kg -1 ). These data were compared to demographic, socioeconomic information and eating habits of the families that took part in the study. The results were also compared to other published data from the Amazon region, other regions of Brazil and other countries. Future studies to set Hg and MeHg levels in hair of children in Brazil should take into account and assess the diversity of the country, mainly in terms of eating habits, socio-economic and cultural aspects. Keywords: mercury, methylmercury, children's hair, Amazon region. ). Esses dados foram comparados com informações demográficas, socioeconômicas e hábitos alimentares das famílias que participaram do estudo. Os resultados também foram comparados com outros dados publicados da Amazônia, outras regiões do Brasil e outros países. Futuros estudos para definir os níveis de Hg total e MeHg no cabelo das crianças brasileiras deverão considerar e avaliar a diversidade do país, principalmente em termos de hábitos alimentares, nível sócio-econômico e os aspectos culturais. Avaliação da concentração de Mercúrio e Metilmercúrio em cabelo de crianças de Manaus, Estado do Amazonas, Brasil

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Hair mercury (signature of fish consumption) and cardiovascular risk in Munduruku and Kayabi Indians of Amazonia

Cited by 82 publications

References 58 publications

Prevalência de hipertensão arterial em comunidades ribeirinhas do Rio Madeira, Amazônia Ocidental Brasileira

Prevalência de hipertensão arterial em comunidades ribeirinhas do Rio Madeira, Amazônia Ocidental Brasileira

Daily mercury intake in fish-eating populations in the Brazilian Amazon

Mercury and methylmercury concentration assessment in children's hair from Manaus, Amazonas state, Brazil

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