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Urbanization and kidney dysfunction in Brazilian indigenous people: a burden for the youth
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Gomes, Orlando Vieira

; Guimarães, Manoel Pereira

; Nicacio, Jandir Mendonça

; Morena, Leela

; Silva, Antônio Marconi Leandro da

; Morais Junior, Jeová Cordeiro de

; Souza, Carlos Dornels Freire de

; Barral Netto, Manoel

; Lima, João Augusto Costa

; Armstrong, Anderson da Costa

Revista da Associação Médica Brasileira

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feb 2023, Volume 69 N. 2 Pages 240 - 245

Abstract: En | Text: En | PDF: En

SUMMARY OBJECTIVE: The aim of this study was to investigate whether the degree of urbanization influences the prevalence of chronic kidney disease in Brazilian indigenous people. METHODS: This is a cross-sectional study conducted between 2016 and 2017 in northeastern Brazil and includes individuals aged between 30 and 70 years from two specific indigenous groups who volunteered to participate in the study: the Fulni-ô people (lowest degree of urbanization) and the Truká group (greater degree of urbanization). Cultural and geographical parameters were used to characterize and measure the magnitude of urbanization. We excluded individuals with known cardiovascular disease or renal failure who required hemodialysis. Chronic kidney disease was defined as a single measurement of an estimated glomerular filtration rate <60 mL/min/1.73 m2 using the Chronic Kidney Disease Epidemiology Collaboration creatinine equation. RESULTS: A total of 184 indigenous people from the Fulni-ô group and 96 from the Truká group with a median age of 46 years (interquartile range: 15.2) were included. We found a chronic kidney disease rate of 4.3% in the total indigenous population, generally affecting an older population: 41.7% over 60 years old (p<0.001). The Truká people had a chronic kidney disease prevalence of 6.2%, with no differences in kidney dysfunction across age groups. The Fulni-ô participants had a chronic kidney disease prevalence of 3.3%, with a higher proportion of kidney dysfunction in older participants (of the six Fulni-ô indigenous people with chronic kidney disease, five were older). CONCLUSION: Our results suggest that a higher degree of urbanization seems to negatively influence the prevalence of chronic kidney disease in Brazilian indigenous people.

https://doi.org/10.1590/1806-9282.20220934

Métodos para avaliação da efetividade de vacinas para COVID-19 com ênfase em abordagens quase-experimentais
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Pescarini, Julia Moreira

; Teixeira, Camila Silveira Silva

; Cruz, Enny Paixão

; Ortelan, Naia

; Pinto, Priscila Fernanda Porto Scaff

; Ferreira, Andrêa Jacqueline Fortes

; Alves, Flavia Jôse Oliveira

; Pinto Junior, Elzo Pereira

; Falcão, Ila Rocha

; Rocha, Aline dos Santos

; Silva, Nivea Bispo da

; Ortiz, Renzo Flores

; Saavedra, Ramon da Costa

; Oliveira, Vinicius de Araújo

; Ribeiro-Silva, Rita de Cássia

; Ichihara, Maria Yury Travassos

; Boaventura, Viviane

; Barral Netto, Manoel

; Kerr, Ligia Regina Franco Sansigolo

; Werneck, Guilherme Loureiro

; Barreto, Mauricio L.

Ciência & Saúde Coletiva

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nov 2021, Volume 26 N. 11 Pages 5599 - 5614

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo A avalição da efetividade de vacinas é feita com dados do mundo real e é essencial para monitorar o desempenho dos programas de vacinação ao longo do tempo bem como frente a novas variantes. Até o momento, a avaliação da efetividade das vacinas para COVID-19 tem sido baseada em métodos clássicos como estudos de coorte e caso controle teste-negativo, que muitas vezes podem não permitir o adequado controle dos vieses intrínsecos da alocação das campanhas de vacinação. O objetivo dessa revisão foi discutir os desenhos de estudo disponíveis para avaliação de efetividade das vacinas, enfatizando os estudos quase-experimentais, que buscam mimetizar os estudos aleatorizados ao introduzir um componente exógeno para atribuição ao tratamento, bem como suas vantagens, limitações e aplicabilidade no contexto dos dados brasileiros. O emprego de métodos quase-experimentais, incluindo as séries temporais interrompidas, o método de diferença em diferenças, escore de propensão, variáveis instrumentais e regressão descontínua, são relevantes pela possibilidade de gerar estimativas mais acuradas da efetividade de vacinas para COVID-19 em cenários como o brasileiro, que se caracteriza pelo uso de várias vacinas, com respectivos número e intervalos entre doses, aplicadas em diferentes faixas etárias e em diferentes momentos da pandemia.

Abstract The evaluation of vaccine effectiveness is conducted with real-world data. They are essential to monitor the performance of vaccination programmes over time, and in the context of the emergence of new variants. Until now, the effectiveness of COVID-19 vaccines has been assessed based on classic methods, such as cohort and test-negative case-control studies, which may often not allow for adequate control of inherent biases in the assignment of vaccination campaigns. The aim of this review was to discuss the study designs available to evaluate vaccine effectiveness, highlighting quasi-experimental studies, which seek to mimic randomized trials, by introducing an exogenous component to allocate to treatment, in addition to the advantages, limitations, and applicability in the context of Brazilian data. The use of quasi-experimental approaches, such as interrupted time series, difference-in-differences, propensity scores, instrumental variables, and regression discontinuity design, are relevant due to the possibility of providing more accurate estimates of COVID-19 vaccine effectiveness. This is especially important in scenarios such as the Brazilian, which characterized by the use of various vaccines, with the respective numbers and intervals between doses, applied to different age groups, and introduced at different times during the pandemic.

https://doi.org/10.1590/1413-812320212611.18622021 1 downloads

Métodos para avaliação da efetividade de vacinas para COVID-19 com ênfase em abordagens quase-experimentais
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Pescarini, Julia Moreira

; Teixeira, Camila Silveira Silva

; Cruz, Enny Paixão

; Ortelan, Naia

; Pinto, Priscila Fernanda Porto Scaff

; Ferreira, Andrêa Jacqueline Fortes

; Alves, Flavia Jôse Oliveira

; Pinto Junior, Elzo Pereira

; Falcão, Ila Rocha

; Rocha, Aline dos Santos

; Silva, Nivea Bispo da

; Ortiz, Renzo Flores

; Saavedra, Ramon da Costa

; Oliveira, Vinicius de Araújo

; Ribeiro-Silva, Rita de Cássia

; Ichihara, Maria Yury Travassos

; Boaventura, Viviane

; Barral Netto, Manoel

; Kerr, Ligia Regina Franco Sansigolo

; Werneck, Guilherme Loureiro

; Barreto, Mauricio L.

Ciência & Saúde Coletiva

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2021, Volume 26 N. 11 Pages 5599 - 5614

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

https://doi.org/10.1590/1413-812320212611.18622021

Medidas de distanciamento social no controle da pandemia de COVID-19: potenciais impactos e desafios no Brasil
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Aquino, Estela M. L.

; Silveira, Ismael Henrique

; Pescarini, Julia Moreira

; Aquino, Rosana

; Souza-Filho, Jaime Almeida de

; Rocha, Aline dos Santos

; Ferreira, Andrea

; Victor, Audêncio

; Teixeira, Camila

; Machado, Daiane Borges

; Paixão, Enny

; Alves, Flávia Jôse Oliveira

; Pilecco, Flávia

; Menezes, Greice

; Gabrielli, Ligia

; Leite, Luciana

; Almeida, Maria da Conceição Chagas de

; Ortelan, Naiá

; Fernandes, Qeren Hapuk R. Ferreira

; Ortiz, Renzo Joel Flores

; Palmeira, Raquel Nunes

; Pinto Junior, Elzo Pereira

; Aragão, Erika

; Souza, Luis Eugenio Portela Fernandes de

; Barral Netto, Manoel

; Teixeira, Maria Glória

; Barreto, Mauricio Lima

; Ichihara, Maria Yury

; Lima, Raíza Tourinho dos Reis Silva

Ciência & Saúde Coletiva

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jun 2020, Volume 25 Suppl. 1 Pages 2423 - 2446

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo A pandemia de COVID-19 tem desafiado pesquisadores e gestores a encontrar medidas de saúde pública que evitem o colapso dos sistemas de saúde e reduzam os óbitos. Esta revisão narrativa buscou sistematizar as evidências sobre o impacto das medidas de distanciamento social na epidemia de COVID-19 e discutir sua implementação no Brasil. Foram triados artigos sobre o efeito do distanciamento social na COVID-19 no PubMed, medRXiv e bioRvix, e analisados atos do poder público nos níveis federal e estadual para sumarizar as estratégias implementadas no Brasil. Os achados sugerem que o distanciamento social adotado por população é efetivo, especialmente quando combinado ao isolamento de casos e à quarentena dos contatos. Recomenda-se a implementação de medidas de distanciamento social e de políticas de proteção social para garantir a sustentabilidade dessas medidas. Para o controle da COVID-19 no Brasil, é imprescindível que essas medidas estejam aliadas ao fortalecimento do sistema de vigilância nos três níveis do SUS, que inclui a avaliação e uso de indicadores adicionais para monitorar a evolução da pandemia e o efeito das medidas de controle, a ampliação da capacidade de testagem, e divulgação ampla e transparente das notificações e de testagem desagregadas.

Abstract The COVID-19 pandemic has challenged researchers and policy makers to identify public safety measures forpreventing the collapse of healthcare systems and reducingdeaths. This narrative review summarizes the available evidence on the impact of social distancing measures on the epidemic and discusses the implementation of these measures in Brazil. Articles on the effect of social distancing on COVID-19 were selected from the PubMed, medRXiv and bioRvix databases. Federal and state legislation was analyzed to summarize the strategies implemented in Brazil. Social distancing measures adopted by the population appear effective, particularly when implemented in conjunction with the isolation of cases and quarantining of contacts. Therefore, social distancing measures, and social protection policies to guarantee the sustainability of these measures, should be implemented. To control COVID-19 in Brazil, it is also crucial that epidemiological monitoring is strengthened at all three levels of the Brazilian National Health System (SUS). This includes evaluating and usingsupplementary indicators to monitor the progression of the pandemic and the effect of the control measures, increasing testing capacity, and making disaggregated notificationsand testing resultstransparentand broadly available.

https://doi.org/10.1590/1413-81232020256.1.10502020 73073 downloads

Preservação da privacidade no enfrentamento da COVID-19: dados pessoais e a pandemia global
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Almeida, Bethania de Araujo

; Doneda, Danilo

; Ichihara, Maria Yury

; Barral-Netto, Manoel

; Matta, Gustavo Correa

; Rabello, Elaine Teixeira

; Gouveia, Fabio Castro

; Barreto, Mauricio

Ciência & Saúde Coletiva

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jun 2020, Volume 25 Suppl. 1 Pages 2487 - 2492

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo Dados ganham cada vez mais importância e valor na busca de respostas para enfrentar a COVID-19 tanto para a ciência quanto para as autoridades sanitárias. Em virtude da dificuldade de realizar diagnóstico da infecção na população em geral, iniciativas apoiadas em tecnologias digitais vêm sendo desenvolvidas por governos ou empresas privadas para possibilitar rastreamentos de sintomas, contatos e deslocamentos de modo a apoiar estratégias de acompanhamento e avaliação na vigilância de contágios. A despeito da importância e necessidade dessas iniciativas, questionamentos acerca da quantidade e tipos de dados pessoais coletados, processados, compartilhados e utilizados em nome da saúde pública, bem como os concomitantes ou posteriores usos desses dados, suscitam questionamentos éticos, legais e técnicos. Desafios que apontam para a necessidade de novos modelos de governança de dados e de tecnologias, responsáveis e transparentes, para controlar o Sars-Cov2 e as futuras emergências de saúde pública.

Abstract Data has become increasingly important and valuable for both scientists and health authorities searching for answers to the COVID-19 crisis. Due to difficulties in diagnosing this infection in populations around the world, initiatives supported by digital technologies are being developed by governments and private companies to enable the tracking of the public's symptoms, contacts and movements. Considering the current scenario, initiatives designed to support infection surveillance and monitoring are essential and necessary. Nonetheless, ethical, legal and technical questions abound regarding the amount and types of personal data being collected, processed, shared and used in the name of public health, as well as the concomitant or posterior use of this data. These challenges demonstrate the need for new models of responsible and transparent data and technology governance in efforts to control SARS-COV2, as well as in future public health emergencies.

https://doi.org/10.1590/1413-81232020256.1.11792020 6002 downloads

[SciELO Preprints] - Personal data usage and privacy considerations in the COVID-19 global pandemic
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Almeida, Bethania Doneda, Danilo Ichihara, Maria Yury Barral-Netto, Manoel Correa Matta , Gustavo Teixeira Rabello , Elaine Castro Gouveia , Fabio Barreto , Mauricio

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Publication date: 2020-05-20

Abstract: En

Data has become increasingly important and valuable for both scientists and health authorities searching for answers to the COVID-19 crisis. Due to difficulties in diagnosing this infection in populations around the world, initiatives supported by digital technologies are being developed by governments and private companies to enable the tracking of the public’s symptoms, contacts and movements. Considering the current scenario, initiatives designed to support infection surveillance and monitoring are essential and necessary. Nonetheless, ethical, legal and technical questions abound regarding the amount and types of personal data being collected, processed, shared and used in the name of public health, as well as the concomitant or posterior use of this data. These challenges demonstrate the need for new models of responsible and transparent data and technology governance in efforts to control SARS-COV2, as well as in future public health emergencies.

https://doi.org/10.1590/SciELOPreprints.511

[SciELO Preprints] - Personal data usage and privacy considerations in the COVID-19 global pandemic
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Almeida, Bethania Doneda, Danilo Ichihara , Maria Yury Barral-Netto, Manoel Matta, Gustavo Correa Rabello, Elaine Teixeira Gouveia, Fabio Castro Barreto, Mauricio

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Publication date: 2020-05-15

Abstract: En Pt

Data is becoming ever more critical and valuable for both scientists and health authorities searching for answers to the COVID-19 crisis. Due to difficulties in diagnosing this infection in populations around the world, initiatives supported by digital technologies have been developed by governments or private companies which enable the tracking of the public’s symptoms, contacts and movements. Considering the current scenario, these initiatives, designed to support the surveillance and monitoring of contagion, are essential and necessary.  Nonetheless, ethical, legal and technical questions remain unanswered regarding the amount and types of personal data being collected, processed, shared and used in the name of public health, as well as the concomitant or later use of this data. These challenges demonstrate the need for new models of responsible and transparent data and technology governance in efforts to control Sars-Cov2 as well as future public health emergencies.

Dados ganham cada vez mais importância e valor na busca de respostas para enfrentar a COVID-19 tanto para ciência quanto para as autoridades sanitárias. Em virtude da dificuldade de realizar diagnóstico da infecção na população em geral, iniciativas apoiadas em tecnologias digitais vem sendo desenvolvidas por governos ou empresas privadas para possibilitar rastreamentos de sintomas, contatos e deslocamentos para apoiar estratégias de acompanhamento e avaliação na vigilância de contágios. A despeito da importância e necessidade dessas iniciativas, questionamentos acerca da quantidade e tipos de dados pessoais coletados, processados, compartilhados e utilizados em nome da saúde pública, bem como os concomitantes ou posteriores usos desses dados, suscitam questionamentos éticos, legais e técnicos. Desafios que apontam para a necessidade de novos modelos de governança de dados e de tecnologias, responsáveis e transparentes, para controlar o Sars-Cov2 e as futuras emergências de saúde pública.

https://doi.org/10.1590/SciELOPreprints.421

Investigating associations between intestinal alterations and parasite load according to Bifidobacterium spp. and Lactobacillus spp. abundance in the gut microbiota of hamsters infected by Leishmania infantum
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Passos, Fabine Correia

; Gois, Marcelo Biondaro

; Sousa, Adenilma Duranes

; de Marinho, Ananda Isis Lima

; Corvo, Laura

; Soto, Manoel

; Barral-Netto, Manoel

; Barral, Aldina

; Baccan, Gyselle Chrystina

Memórias do Instituto Oswaldo Cruz

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2020, Volume 115 elocation e200377

Abstract: En | Text: En | PDF: En

BACKGROUND Visceral leishmaniasis (VL) is a tropical neglected disease with high associated rates of mortality. Several studies have highlighted the importance of the intestinal tract (IT) and gut microbiota (GM) in the host immunological defense. Data in the literature on parasite life cycle and host immune defense against VL are scarce regarding the effects of infection on the IT and GM. OBJECTIVES This study aimed to investigate changes observed in the colon of Leishmania infantum-infected hamsters, including alterations in the enteric nervous system (ENS) and GM (specifically, levels of bifidobacteria and lactobacilli). METHODS Male hamsters were inoculated with L. infantum and euthanised at four or eight months post-infection. Intestines were processed for histological analysis and GM analysis. Quantitative polymerase chain reaction (qPCR) was performed to quantify each group of bacteria: Bifidobacterium spp. (Bf) and Lactobacillus spp (LacB). FINDINGS Infected hamsters showed histoarchitectural loss in the colon wall, with increased thickness in the submucosa and the mucosa layer, as well as greater numbers of intraepithelial lymphocytes. Forms suggestive of amastigotes were seen inside mononuclear cells. L. infantum infection induced changes in ENS, as evidenced by increases in the area of colonic enteric ganglia. Despite the absence of changes in the levels of Bf and LacB during the course of infection, the relative abundance of these bacteria was associated with parasite load and histological alterations. MAIN CONCLUSIONS Our results indicate that L. infantum infection leads to important changes in the colon and suggest that bacteria in the GM play a protective role.

https://doi.org/10.1590/0074-02760200377 527 downloads

Reorganização da atenção primária à saúde para vigilância universal e contenção da COVID-19
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Teixeira, Maria Glória

; Medina, Maria Guadalupe

; Costa, Maria da Conceição N.

; Barral-Netto, Manoel

; Carreiro, Roberto

; Aquino, Rosana

Epidemiologia e Serviços de Saúde

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2020, Volume 29 N. 4 elocation e2020494

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

https://doi.org/10.5123/s1679-49742020000400015 2308 downloads

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Reorganização da atenção primária à saúde para vigilância universal e contenção da COVID-19
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Teixeira, Maria Glória

; Medina, Maria Guadalupe

; Costa, Maria da Conceição N.

; Barral-Netto, Manoel

; Carreiro, Roberto

; Aquino, Rosana

Epidemiologia e Serviços de Saúde

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2020, Volume 29 N. 4 elocation e2020494

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

https://doi.org/10.5123/s1679-49742020000400015

11.

Medidas de distanciamento social no controle da pandemia de COVID-19: potenciais impactos e desafios no Brasil
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Aquino, Estela M. L.

; Silveira, Ismael Henrique

; Pescarini, Julia Moreira

; Aquino, Rosana

; Souza-Filho, Jaime Almeida de

; Rocha, Aline dos Santos

; Ferreira, Andrea

; Victor, Audêncio

; Teixeira, Camila

; Machado, Daiane Borges

; Paixão, Enny

; Alves, Flávia Jôse Oliveira

; Pilecco, Flávia

; Menezes, Greice

; Gabrielli, Ligia

; Leite, Luciana

; Almeida, Maria da Conceição Chagas de

; Ortelan, Naiá

; Fernandes, Qeren Hapuk R. Ferreira

; Ortiz, Renzo Joel Flores

; Palmeira, Raquel Nunes

; Pinto Junior, Elzo Pereira

; Aragão, Erika

; Souza, Luis Eugenio Portela Fernandes de

; Barral Netto, Manoel

; Teixeira, Maria Glória

; Barreto, Mauricio Lima

; Ichihara, Maria Yury

; Lima, Raíza Tourinho dos Reis Silva

Ciência & Saúde Coletiva

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2020, Volume 25 Suppl. 1 Pages 2423 - 2446

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

https://doi.org/10.1590/1413-81232020256.1.10502020

12.

Preservação da privacidade no enfrentamento da COVID-19: dados pessoais e a pandemia global
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Almeida, Bethania de Araujo

; Doneda, Danilo

; Ichihara, Maria Yury

; Barral-Netto, Manoel

; Matta, Gustavo Correa

; Rabello, Elaine Teixeira

; Gouveia, Fabio Castro

; Barreto, Mauricio

Ciência & Saúde Coletiva

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2020, Volume 25 Suppl. 1 Pages 2487 - 2492

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

https://doi.org/10.1590/1413-81232020256.1.11792020

13.

Urbanization is Associated with Increased Trends in Cardiovascular Mortality Among Indigenous Populations: the PAI Study
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Armstrong, Anderson da Costa

; Ladeia, Ana Marice Teixeira

; Marques, Juracy

; Armstrong, Dinani Matoso Fialho de Oliveira

; Silva, Antonio Marconi Leandro da

; Morais Junior, Jeová Cordeiro de

; Barral, Aldina

; Correia, Luis Claudio Lemos

; Barral-Netto, Manoel

; Lima, João A. C.

Arquivos Brasileiros de Cardiologia

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mar 2018, Volume 110 N. 3 Pages 240 - 245

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo Fundamento: O risco cardiovascular das diversas comunidades indígenas não está bem estabelecido e pode ser influenciado pelo processo de urbanização a que se submetem esses povos. Objetivos: Investigar o perfil da mortalidade cardiovascular (CV) das populações indígenas durante o rápido processo de urbanização altamente influenciado por intervenções governamentais de infraestrutura no Nordeste do Brasil. Métodos: Avaliamos a mortalidade de populações indígenas (≥ 30 anos) do Vale do São Francisco (Bahia e Pernambuco) no período de 2007-2011. Considerou-se mortalidade CV se a causa de morte constasse no grupo de doenças CV do CID-10 ou se tivesse sido registrada como morte súbita. As populações indígenas foram divididas em dois grupos conforme o grau de urbanização baseado em critérios antropológicos: Grupo 1 - menos urbanizadas (Funi-ô, Pankararu, Kiriri e Pankararé); e Grupo 2 - mais urbanizadas (Tuxá, Truká e Tumbalalá). Taxas de mortalidade de cidades altamente urbanizadas (Petrolina e Juazeiro) nas proximidades das áreas indígenas foram também avaliadas. A análise explorou tendências na porcentagem de mortalidade CV para cada população estudada. Adotou-se o valor de p < 0,05 como significância estatística. Resultados: Houve 1.333 mortes indígenas nas tribos da Bahia e de Pernambuco (2007-2011): 281 no Grupo 1 (1,8% da população de 2012) e 73 no Grupo 2 (3,7% da população de 2012), mortalidade CV de 24% e 37%, respectivamente (p = 0,02). Entre 2007 e 2009, houve 133 mortes no Grupo 1 e 44 no Grupo 2, mortalidade CV de 23% e 34%, respectivamente. Entre 2009 e 2010, houve 148 mortes no Grupo 1 e 29 no Grupo 2, mortalidade CV de 25% e 41%, respectivamente. Conclusões: A urbanização parece influenciar os aumentos de mortalidade CV dos povos indígenas vivendo de modo tradicional. Mudanças no estilo de vida e ambientais devidas à urbanização somadas à subótima atenção à saúde podem estar implicadas no aumento do risco CV nos povos indígenas.

Abstract Background: The cardiovascular risk burden among diverse indigenous populations is not totally known and may be influenced by lifestyle changes related to the urbanization process. Objectives: To investigate the cardiovascular (CV) mortality profile of indigenous populations during a rapid urbanization process largely influenced by governmental infrastructure interventions in Northeast Brazil. Methods: We assessed the mortality of indigenous populations (≥ 30 y/o) from 2007 to 2011 in Northeast Brazil (Bahia and Pernambuco states). Cardiovascular mortality was considered if the cause of death was in the ICD-10 CV disease group or if registered as sudden death. The indigenous populations were then divided into two groups according to the degree of urbanization based on anthropological criteria:9,10 Group 1 - less urbanized tribes (Funi-ô, Pankararu, Kiriri, and Pankararé); and Group 2 - more urbanized tribes (Tuxá, Truká, and Tumbalalá). Mortality rates of highly urbanized cities (Petrolina and Juazeiro) in the proximity of indigenous areas were also evaluated. The analysis explored trends in the percentage of CV mortality for each studied population. Statistical significance was established for p value < 0.05. Results: There were 1,333 indigenous deaths in tribes of Bahia and Pernambuco (2007-2011): 281 in Group 1 (1.8% of the 2012 group population) and 73 in Group 2 (3.7% of the 2012 group population), CV mortality of 24% and 37%, respectively (p = 0.02). In 2007-2009, there were 133 deaths in Group 1 and 44 in Group 2, CV mortality of 23% and 34%, respectively. In 2009-2010, there were 148 deaths in Group 1 and 29 in Group 2, CV mortality of 25% and 41%, respectively. Conclusions: Urbanization appears to influence increases in CV mortality of indigenous peoples living in traditional tribes. Lifestyle and environmental changes due to urbanization added to suboptimal health care may increase CV risk in this population.

https://doi.org/10.5935/abc.20180026 2000 downloads

14.

Scoring clinical signs can help diagnose canine visceral leishmaniasis in a highly endemic area in Brazil
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Silva, Kleverton Ribeiro da

; Mendonça, Vitor Rosa Ramos de

; Silva, Kellen Matuzzy

; Nascimento, Leopoldo Fabrício Marçal do

; Mendes-Sousa, Antonio Ferreira

; Pinho, Flaviane Alves de

; Barral-Netto, Manoel

; Barral, Aldina Maria Prado

; Cruz, Maria do Socorro Pires e

Memórias do Instituto Oswaldo Cruz

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jan 2017, Volume 112 N. 1 Pages 53 - 63

Abstract: En | Text: En | PDF: En

Canine visceral leishmaniasis (CVL) diagnosis is still a challenge in endemic areas with limited diagnostic resources. This study proposes a score with the potential to distinguish positive CVL cases from negative ones. We studied 265 dogs that tested positive for CVL on ELISA and parasitological tests. A score ranging between 0 and 19 was recorded on the basis of clinical signs. Dogs with CVL had an overall higher positivity of the majority of clinical signs than did dogs without CVL or with ehrlichiosis. Clinical signs such as enlarged lymph nodes (83.93%), muzzle/ear lesions (55.36%), nutritional status (51.79%), bristle condition (57.14%), pale mucosal colour (48.21%), onychogryphosis (58.93%), skin lesion (39.28%), bleeding (12.50%), muzzle depigmentation (41.07%), alopecia (39.29%), blepharitis (21.43%), and keratoconjunctivitis (42.86%) were more frequent in dogs with CVL than in dogs with ehrlichiosis or without CVL. Moreover, the clinical score increased according to the positivity of all diagnostic tests (ELISA, p < 0.001; parasite culture, p = 0.0021; and smear, p = 0.0003). Onychogryphosis (long nails) [odds ratio (OR): 3.529; 95% confidence interval (CI): 1.832-6.796; p < 0.001], muzzle depigmentation (OR: 4.651; 95% CI: 2.218-9.750; p < 0.001), and keratoconjunctivitis (OR: 5.400; 95% CI: 2.549-11.441; p < 0.001) were highly associated with CVL. Interestingly, a score cut-off value ≥ 6 had an area under the curve of 0.717 (p < 0.0001), sensitivity of 60.71%, and specificity of 73.64% for CVL diagnosis. The clinical sign-based score for CVL diagnosis suggested herein can help veterinarians reliably identify dogs with CVL in endemic areas with limited diagnostic resources.

https://doi.org/10.1590/0074-02760160305 1723 downloads

15.

The microbiological signature of human cutaneous leishmaniasis lesions exhibits restricted bacterial diversity compared to healthy skin
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Salgado, Vanessa R

; Queiroz, Artur TL de

; Sanabani, Sabri S

; Oliveira, Camila I de

; Carvalho, Edgar M

; Costa, Jackson ML

; Barral-Netto, Manoel

; Barral, Aldina

Memórias do Instituto Oswaldo Cruz

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apr 2016, Volume 111 N. 4 Pages 241 - 251

Abstract: En | Text: En | PDF: En

Localised cutaneous leishmaniasis (LCL) is the most common form of cutaneous leishmaniasis characterised by single or multiple painless chronic ulcers, which commonly presents with secondary bacterial infection. Previous culture-based studies have found staphylococci, streptococci, and opportunistic pathogenic bacteria in LCL lesions, but there have been no comparisons to normal skin. In addition, this approach has strong bias for determining bacterial composition. The present study tested the hypothesis that bacterial communities in LCL lesions differ from those found on healthy skin (HS). Using a high throughput amplicon sequencing approach, which allows for better populational evaluation due to greater depth coverage and the Quantitative Insights Into Microbial Ecology pipeline, we compared the microbiological signature of LCL lesions with that of contralateral HS from the same individuals.Streptococcus, Staphylococcus,Fusobacterium and other strict or facultative anaerobic bacteria composed the LCL microbiome. Aerobic and facultative anaerobic bacteria found in HS, including environmental bacteria, were significantly decreased in LCL lesions (p < 0.01). This paper presents the first comprehensive microbiome identification from LCL lesions with next generation sequence methodology and shows a marked reduction of bacterial diversity in the lesions.

https://doi.org/10.1590/0074-02760150436 2258 downloads

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