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24. Chronic Mercury Exposure and GSTP1 Polymorphism in Munduruku Indigenous from Brazilian Amazon

Author

Silva, Mayara Calixto da, primary, Oliveira, Rogério Adas Ayres de, additional, Vasconcellos, Ana Claudia Santiago de, additional, Rebouças, Bruno Hojo, additional, Pinto, Bruna Duarte, additional, Lima, Marcelo de Oliveira, additional, Jesus, Iracina Maura de, additional, Machado, Daniel Escorsim, additional, Hacon, Sandra Souza, additional, Basta, Paulo Cesar, additional, and Perini, Jamila Alessandra, additional

Published
2023
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29. Calor y carga de enfermedades: impactos y proyecciones futuras en capitales de la Amazonía Legal

Author

Sauchay Romero, Luis, Jacobson, Ludmilla da Silva Viana, Albuquerque de Castro, Hermano, Hacon, Sandra de Souza, Sauchay Romero, Luis, Jacobson, Ludmilla da Silva Viana, Albuquerque de Castro, Hermano, and Hacon, Sandra de Souza

Abstract

BACKGROUND // Under the influence of climate change, environmental exposure to heat and pollution grows, exacerbated by extreme events, increasing the risk of mortality in vulnerable areas. We aimed to evaluate the present (2000-2019) and future effects of heat on the burden of cardiovascular (in people aged 45 years or older), respiratory (in people aged 60 years or older) and all-cause (in people aged 1 year or more) diseases in capitals of the Legal Amazon (Brazil). METHODS // An ecological study was conducted to initially estimate, for the period 2000-2019, the relative risk (RR) of exposure-response related to the effects of temperature on years of life potentially lost (YLL) using the generalized linear regression model (GLM), combined with the distributed non-linear lag model (DLNM); and the fractions of YLL attributable to heat from the prospective perspective (forward). Subsequently, the results were estimated in the baseline period (1970-2005) and projected into the future in the specific levels of warming and periods: 1.5 ºC (2010-2039), 2 ºC (2040-2069) and 4 ºC (2070-2099), considering the temperature data from the WCRP CORDEX regional climate model in RCP8.5 scenario. RESULTS // The RR of YLL increased significantly in the capitals due to exposure to heat and marked thermal amplitudes between 2000-2019, with the major effects on respiratory diseases in Río Blanco (14%), due to all causes in Manaus (12%) and cardiovascular in Cuiabá (9%). Compared with the baseline period, the period 2040-2069 showed the largest increase (10.40 times) in the fraction of the number of YLL attributable to heat in the region, with the predominance of cardiovascular diseases. The findings were not completely conclusive, the low precision of the estimated confidence intervals did not show the significance of the negative effect of heat. CONCLUSIONS // Regardless of its significance, heat increases the risk of years of life lost in the short and medium term. The results suppo, FUNDAMENTOS // Bajo la influencia del cambio climático crece la exposición ambiental al calor y a la contaminación, exacerbados por eventos extremos, incrementando el riesgo de mortalidad en áreas vulnerables. En este trabajo se evaluaron los efectos presentes (2000-2019) y futuros del calor sobre la carga de enfermedades cardiovasculares (en personas con 45 años o más), respiratorias (en personas con 60 años o más) y por todas las causas (en personas con 1 año o más) en capitales de la Amazonía Legal (Brasil). MÉTODOS // Se realizó un estudio ecológico. Se estimaron inicialmente, para el período 2000-2019, el riesgo relativo (RR) de exposición- respuesta relacionado a los efectos de la temperatura sobre los años de vida potencialmente perdidos (AVPP) mediante el modelo de regresión lineal generalizada (GLM), combinado con el modelo no lineal de desfasajes (lag) distribuidos (DLNM); y las fracciones de AVPP atribuibles al calor desde la perspectiva prospectiva (forward). Posteriormente los resultados fueron estimados en período base (1970-2005) y proyectados a futuro en los niveles específicos de calentamiento y períodos: 1,5 ºC (2010-2039), 2 ºC (2040-2069) y 4 ºC (2070-2099), considerando los datos de temperatura del modelo climático regional WCRP CORDEX en escenario RCP8.5. RESULTADOS // Entre 2000-2019 el RR de AVPP se incrementó significativamente en las capitales ante la exposición al calor y las marcadas amplitudes térmicas, con los mayores efectos sobre las enfermedades respiratorias en Río Blanco (14%), por todas las causas en Manaos (12%) y cardiovasculares en Cuiabá (9%). Comparado con el período base, el período 2040-2069 mostró el mayor aumento (10,40 veces) de la fracción de número de AVPP atribuibles al calor en la región, con predominio de las causas cardiovasculares. Los hallazgos encontrados no fueron totalmente concluyentes, la baja precisión de los intervalos de confianza estimados no mostró significancia en el efecto negativo del calor. CONCLUSI

Published
2022

32. Human Risk Assessment of Ashes Soil from Pantanal after 2020 Wildfires

Author

Caumo, Sofia, primary, Lázaro, Wilkinson L., additional, Sobreira, Ernandes, additional, Beringui, Karmel, additional, Gioda, Adriana, additional, Massone, Carlos German, additional, Carreira, Renato, additional, de Freitas Jr, Djair Sérgio, additional, Ignácio, Áurea R.A., additional, and Hacon, Sandra, additional

Published
2022
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35. The potential impact of PM2.5 on the covid-19 crisis in the Brazilian Amazon region.

Author

dos Santos Gonçalves, Karen, Cirino, Glauber G., Oliveira da Costa, Marcelo, de Oliveira do Couto, Lucas, Tortelote, Giovane G., and de Souza Hacon, Sandra

Abstract

OBJECTIVE: This study aims to assess covid-19 morbidity, mortality, and severity from 2020 to 2021 in five Brazilian Amazon states with the highest records of wildfires. METHODS: A distributed lag non-linear model was applied to estimate the potential exposure risk association with particulate matter smaller than 2.5-µm in diameter (PM2.5). Daily mean temperature, relative humidity, percentual of community mobility, number of hospital beds, days of the week, and holidays were considered in the final models for controlling the confounding factors. RESULTS: The states of Para, Mato Grosso, and Amazonas have reported the highest values of overall cases, deaths, and severe cases of covid-19. The worrying growth in the percentual rates in 2020/2021 for the incidence, severity, and mortality were highlighted in Rondônia and Mato Grosso. The growth in 2020/2021 in the estimations of PM2.5 concentrations was higher in Mato Grosso, with an increase of 24.4%, followed by Rondônia (14.9%). CONCLUSION: This study establishes an association between wildfire-generated PM2.5 and increasing covid-19 incidence, mortality, and severity within the studied area. The findings showed that the risk of covid-19 morbidity and mortality is nearly two times higher among individuals exposed to high concentrations of PM2.5. The attributable fraction to PM2.5 in the studied area represents an important role in the risk associated with covid-19 in the Brazilian Amazon region. DESCRIPTORS: Covid-19, Brazilian Amazon, Wildfires, Fine Particulate Matter. [ABSTRACT FROM AUTHOR]

Published
2023
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36. Cerebrovascular mortality: trend and seasonality in Brazilian capitals, 2000-2019.

Author

Sauchay Romero, Luis, Viana Jacobson, Ludmilla da Silva, and de Souza Hacon, Sandra

Abstract

OBJECTIVE: To evaluate the trend and seasonality of cerebrovascular mortality rates in the adult population of Brazilian capitals from 2000 to 2019. METHODS: This is an ecological and descriptive study of a time series of mortality due to cerebrovascular causes in adults (= 18 years) living in Brazilian capitals from 2000 to 2019, based on the Brazilian Mortality Information System. Descriptive statistical techniques were applied in the exploratory analysis of data and in the summary of specific, standardized rates and ratios by sociodemographic characteristics. The jointpoint regression model was used to estimate the trend of cerebrovascular mortality rates by gender, age groups, and geographic regions. The seasonal variability of rates by geographic regions was estimated using the generalized additive model by smoothing cubic splines. RESULTS: People aged over 60 years comprised 77% of all cerebrovascular deaths. Women (52%), white individuals (47%), single people (59%), and those with low schooling (57%, elementary school) predominated in our sample. Recife (20/1,000 inhab.) and Vitória (16/1,000 inhab.) showed the highest crude mortality rates. Recife (49/10,000 inhab.) and Palmas (47/10,000 inhab.) prevailed after we applied standardized rates. Cerebrovascular mortality rates in Brazil show a favorable declining trend for adults of all genders. Seasonality influenced rate increase from July to August in almost all region capitals, except in the North, which rose in March, April, and May. CONCLUSIONS: Deaths due to cerebrovascular causes prevailed in older single adults with low schooling. The trend showed a tendency to decline and winter, the greatest risk. Regional differences can support decision-makers in implementing public policies to reduce cerebrovascular mortality. DESCRIPTORS: Mortality. Seasons. Cerebral Hemorrhage. Brain Ischemia. [ABSTRACT FROM AUTHOR]

Published
2023
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38. An Assessment of Health Outcomes and Methylmercury Exposure in Munduruku Indigenous Women of Childbearing Age and Their Children under 2 Years Old

Author

Kempton, Joeseph William, primary, Périssé, André Reynaldo Santos, additional, Hofer, Cristina Barroso, additional, de Vasconcellos, Ana Claudia Santiago, additional, de Sousa Viana, Paulo Victor, additional, de Oliveira Lima, Marcelo, additional, de Jesus, Iracina Maura, additional, de Souza Hacon, Sandra, additional, and Basta, Paulo Cesar, additional

Published
2021
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39. Mercury Exposure in Munduruku Indigenous Communities from Brazilian Amazon: Methodological Background and an Overview of the Principal Results

Author

Basta, Paulo Cesar, primary, Viana, Paulo Victor de Sousa, additional, Vasconcellos, Ana Claudia Santiago de, additional, Périssé, André Reynaldo Santos, additional, Hofer, Cristina Barroso, additional, Paiva, Natalia Santana, additional, Kempton, Joseph William, additional, Ciampi de Andrade, Daniel, additional, Oliveira, Rogério Adas Ayres de, additional, Achatz, Rafaela Waddington, additional, Perini, Jamila Alessandra, additional, Meneses, Heloísa do Nascimento de Moura, additional, Hallwass, Gustavo, additional, Lima, Marcelo de Oliveira, additional, Jesus, Iracina Maura de, additional, Santos, Cleidiane Carvalho Ribeiro dos, additional, and Hacon, Sandra de Souza, additional

Published
2021
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41. Genetic Polymorphism of Delta Aminolevulinic Acid Dehydratase (ALAD) Gene and Symptoms of Chronic Mercury Exposure in Munduruku Indigenous Children within the Brazilian Amazon

Author

Perini, Jamila Alessandra, primary, Silva, Mayara Calixto, additional, Vasconcellos, Ana Claudia Santiago de, additional, Viana, Paulo Victor Sousa, additional, Lima, Marcelo Oliveira, additional, Jesus, Iracina Maura, additional, Kempton, Joseph William, additional, Oliveira, Rogério Adas Ayres, additional, Hacon, Sandra Souza, additional, and Basta, Paulo Cesar, additional

Published
2021
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43. Semiquantitative mercury determination in fish: a tool for poisoning prevention

Author

YALLOUZ ALLEGRA V., CALIXTO TATIANA, and HACON SANDRA

Subjects
mercury, fish, semiquantitative determination, poisoning prevention, Science
Abstract

Human exposure to mercury intoxication through contaminated fish ingestion has been well studied, mainly among Japanese population. The Brazilian population, particulaly in the Amazon region, is now in focus due to findings of fish contamination. Major health impacts caused by mercury affect mostly people who have a regular fish diet. A continuous checking for mercury content in the most consumed fish could prevent human intoxication. A simple, non-instrumental method to allow a continuous checking of the mercury content in fish was developed. Based on this method, we are proposing a prevention action where community agents can be trained to perform fish analysis. Technical Schools and Universities located nearby the affected areas would be in charge of quality control programs for the fish analysis as well as for the selection, training and update for operators.

Published
2002

46. Health Risk Assessment of Mercury Exposure from Fish Consumption in Munduruku Indigenous Communities in the Brazilian Amazon

Author

Vasconcellos, Ana Claudia Santiago de, primary, Hallwass, Gustavo, additional, Bezerra, Jaqueline Gato, additional, Aciole, Angélico Nonato Serrão, additional, Meneses, Heloisa Nascimento de Moura, additional, Lima, Marcelo de Oliveira, additional, Jesus, Iracina Maura de, additional, Hacon, Sandra de Souza, additional, and Basta, Paulo Cesar, additional

Published
2021
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48. Complexo industrial e portuário do Pecém: um inquérito epidemiológico

Author

Nuto, Sharmênia de Araújo Soares, primary, Barreira Filho, Edenilo Baltazar, additional, Oliveira, Beatriz Fátima Alves de, additional, Freitas, Roberto Wagner Júnior Freire de, additional, Couto, Lucas de Oliveira do, additional, Jacobson, Ludmilla da Silva Viana, additional, Hacon, Sandra de Souza, additional, and Périssé, André Reynaldo Santos, additional

Published
2021
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