Visual acuity in fish consumers of the Brazilian Amazon: risks and benefits from local diet

Fillion, Myriam; Lemire, Mélanie; Philibert, Aline; Frenette, Benoît; Weiler, Hope A.; DeGuire, Jason R.; Guimarães, Jean Rémy Davée; Larribe, Fabrice; Barbosa, Fernando; Mergler, Donna

doi:10.1017/s1368980011001765

Cited by 18 publications

(17 citation statements)

References 44 publications

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“…On the contrary, these findings are consistent with other results in this study population showing positive associations between Se status and motor performances and near visual acuity (Lemire et al, 2011;Fillion, 2011a) and a lower prevalence of agerelated cataracts among those with elevated Se (Lemire et al, 2010b).…”

Section: Discussionsupporting

confidence: 92%

“…It is not clear at which levels organic Se from food intake may become unsafe. Our data in the Lower Tapajós region shows no deleterious effect of Se, and even beneficial effects of high Se status on health (Lemire et al, 2010a,b;Lemire et al, 2011;Fillion, 2011a). Whether dietary Se is less toxic in Hg-exposed populations remains unanswered.…”

Section: Discussionmentioning

confidence: 67%

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No evidence of selenosis from a selenium-rich diet in the Brazilian Amazon

Lemire

Philibert

Fillion

et al. 2012

Environment International

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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 67%

No evidence of selenosis from a selenium-rich diet in the Brazilian Amazon

Lemire

Philibert

Fillion

et al. 2012

Environment International

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“…Ocular findings revealed that the presence of Hg and Pb might increase the risk for visual acuity in older persons. However, loss of visual acuity during ageing is also diet-related, and consumption of n-3 fatty acids and Se has positive effects on eyesight [25]. Similar seafood studies lack information about direct lead and cadmium effects on the sight organ.…”

Section: Metals and Sight Organmentioning

confidence: 99%

Occurrence and Exposure to Lead and Cadmium and Their Environmental Influence on Eyesight

Nelke¹,

Mulak²,

Łuczak³

et al. 2015

Pol. J. Environ. Stud.

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Heavy metal influence on the environment and humans is well known, although not all aspects are fully understood. Increased manufacturing and industrial growth without any proper approach for usage, distribution, and storage of heavy metals might lead to a very dangerous influence not only on an entire ecosphere, but also might affect human health. Because of different forms of exposure to heavy metals, different forms of after-exposure diseases might appear. Exposure by air, water, direct contact, and even by consumption -along with other less common ways of exposure -have been mentioned globally [1].Soil and water exposed to heavy metals results in both animal and plant metal poisoning. Humans at the end of the food chain are exposed on any long-or short-term influence of heavy metal poisoning [2]. Many variables are related to poison activity on humans and the environment. Factors such as age, coexisting other diseases, and time and type of exposure are very important. Different topics are related to the environment. Type of soil, insolation, and closure to any human habitats and other factors should always be considered when discussing heavy metal exposure. Accumulation of heavy metals is dangerous for the environment. A special focus should be particularly used in order to avoid improper heavy metal disposal and increase a safe and long-term method for waste storage [3]. In order to fully understand the impact of heavy metals on humans and the environment is unlikely to improve factory production and safety standards [4].Evaluate and describe briefly how lead and cadmium heavy metal exposure influences the sight organ and discuss whether it is a common or rare occurrence.Pol. J. Environ. Stud. Vol. 24, No. 4 (2015) AbstractNowadays heavy metals in the environment and everyday life are very common. Their usage and influence in industry is essential. Quite often not only the environment but also general human health might be impacted by their use and presence. Metal poisoning and its effect on living structures and tissues impacts their condition. The environment and every living species in it are heavily vulnerable to any heavy metal exposure and might lead to catastrophic natural disasters. In humans skin irritations and general diseases are not so common, but they do appear, and everyone should be aware of this. In this paper we focus on a very special topic related to heavy metal exposure to eyesight and their influence on this important organ. Lead and cadmium are the most common heavy metals used almost everywhere.

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“…Alguns estudos têm avaliado as consequências da exposição ao mercú-rio sobre o funcionamento do sistema nervoso dessas populações ou populações que sofrem de exposição semelhante 27,28,29,30,31,32,33,34,35,36 . Outros estudos têm mostrado que populações expostas ao mercúrio pela ingestão de peixes e com índices de mercúrio abaixo dos preconizados pela OMS apresentam alterações neurológi-cas diversas 27,28,32,34,37,38 .…”

Section: Introductionunclassified

Manifestações neurológicas em ribeirinhos de áreas expostas ao mercúrio na Amazônia brasileira

et al. 2013

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No presente estudo, foram avaliados comparativamente os níveis atuais de exposição ao mercúrio e as manifestações neurológicas em ribeirinhos residentes em comunidades situadas no Estado do Pará, Brasil. Participaram do estudo 78 ribeirinhos de Barreiras (bacia do rio Tapajós), 30 de São Luiz do Tapajós (bacia do rio Tapajós) e 49 do Furo do Maracujá (bacia do rio Tocantins). As concentrações de mercúrio total foram quantificadas, em cabelo, pela espectrofotometria de absorção atômica, e a avaliação neurológica foi realizada por meio de testes de rotina. As concentrações de mercúrio nas comunidades do Tapajós foram maiores que as do Tocantins (p < 0,01). A avaliação das alterações neurológicas não mostrou diferença significativa entre as comunidades das áreas expostas e controle para os resultados observados pelo exame neurológico convencional, exceto para desvio da marcha (p < 0,05). Concluiu-se que, apesar dos níveis de exposição ao mercúrio, houve uma baixa frequência de alterações somatossensoriais encontradas por meio de exames neurológicos convencionais.

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Visual acuity in fish consumers of the Brazilian Amazon: risks and benefits from local diet

Cited by 18 publications

References 44 publications

No evidence of selenosis from a selenium-rich diet in the Brazilian Amazon

No evidence of selenosis from a selenium-rich diet in the Brazilian Amazon

Occurrence and Exposure to Lead and Cadmium and Their Environmental Influence on Eyesight

Manifestações neurológicas em ribeirinhos de áreas expostas ao mercúrio na Amazônia brasileira

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