Brazil is among the biggest pesticide consumers in the world, with its population severely exposed to tons of such substances, both because of environmental contamination and occupational use. The health consequences of pesticide exposure are well-documented, but still sparse regarding Brazilian population. This study systematically reviewed the Brazilian studies published that address the relationship between exposure to pesticides and health problems in the Brazilian population. Also, information about pesticide use in Brazil is provided. The included studies showed that exposure to pesticides has a relevant impact on the health of the Brazilian population, regardless of age and gender, and on workers in rural areas or not. Most poisoning events seem to result from the continuous use of pesticides, whether occupationally or environmentally, characterizing a public health problem. The major consequences reported in literature were damage to the central nervous system, cancer, deleterious effects on rural workers' health, intoxications, malformations, and endocrine changes. These findings point out the need to understand the impact of chronic exposure to pesticides on severely exposed people and highlight the importance of creating public policies to protect them and avoid disease occurrence.
A Imunodeficiência combinada grave (SCID) é uma doença primária letal, quando não empregado tratamento precoce, diagnóstico por meio da análise do círculo de excisão do receptor de células T (TREC) e o círculo de excisão de recombinação kappa (KREC). Por intermédio dos cartões de Guthrie e do papel filtro, são extraídas as informações baseadas no teste molecular de reação em cadeia de polimerase (polymerase chain reaction, PCR), em tempo real (qRT-PCR), para avaliar simultaneamente as deficiências de células B e T e rastrear as alterações imunológicas. Deste modo, o objetivo desta revisão sistemática foi verificar a sensibilidade e especificidade da utilização de qRT-PCR, em TREC e KREC, no diagnóstico da SCID, conforme publicações nas bases de dados PUBMED e SCIELO, entre 2011 e 2021, resultando em 30 artigos completos, após aplicação da metodologia, em que foi possível concluir que a quantificação de TRECs e KRECs, ao utilizar o teste de qRT-PCR, foi eficiente na detecção das SCIDs e validada em vários países, no entanto, ainda pouco empregada no Brasil, evidenciando baixo diagnóstico de erros inatos da imunidade e alta taxa de mortalidade no primeiro ano de vida.
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