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Scientometric review of research on Neglected Tropical Diseases: a 31-year perspective from the Journal of the Brazilian Society of Tropical Medicine
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Ferreira, Anderson Fuentes

; Heukelbach, Jorg

; Costa, Carlos Henrique Nery

; Souza, Eliana Amorim de

; Maciel, Adjoane Maurício Silva

; Correia, Dalmo

; Ramos Jr, Alberto Novaes

Revista da Sociedade Brasileira de Medicina Tropical

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2023, Volume 56 elocation e0403-2022

Abstract: En | Text: En | PDF: En

ABSTRACT Background: To analyze the temporal evolution of research on Neglected Tropical Diseases (NTDs) published by the Journal of the Brazilian Society of Tropical Medicine (JBSTM). Methods: We performed an analysis of the scientific production in JBSTM on NTDs using an advanced search, which included authors’ descriptors, title, and abstract, and by combining specific terms for each NTDs from 1991 to 2021. Data related to authors, countries of origin, institutions, and descriptors, were evaluated and analyzed over time. Bibliographic networks were constructed using VOSviewer 1.6.16. Results: The JBSTM published 4,268 scientific papers during this period. Of these 1,849 (43.3%) were related to NTDs. The number of publications on NTDs increased by approximately 2.4-fold, from 352 (total 724) during 1991-2000 to 841 (total 2,128) during 2011-2021, despite the proportional reduction (48.6% versus 39.5%). The most common singular NTDs subject of publications included Chagas disease (31.4%; 581/1,849), leishmaniasis (25.5%, 411/1,849), dengue (9.4%, 174/1,849), schistosomiasis (9.0%; 166/1,849), and leprosy (6.5%, 120/1,849), with authorship mostly from Brazil’s South and Southeast regions. Conclusions: Despite the proportional reduction in publications, JBSTM remains an important vehicle for disseminating research on NTDs during this period. There is a need to strengthen the research and subsequent publications on specific NTDs. Institutions working and publishing on NTDs in the country were concentrated in the South and Southeast regions, requiring additional investments in institutions in other regions of the country.

https://doi.org/10.1590/0037-8682-0403-2022

ChatGPT: the new panacea of the academic world
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Quintans-Júnior, Lucindo José

; Gurgel, Ricardo Queiroz

; Araújo, Adriano Antunes de Souza

; Correia, Dalmo

; Martins-Filho, Paulo Ricardo

Revista da Sociedade Brasileira de Medicina Tropical

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2023, Volume 56 elocation e0060-2023

Abstract: En | Text: En | PDF: En

https://doi.org/10.1590/0037-8682-0060-2023

Response to Chagas disease in Brazil: strategic milestones for achieving comprehensive health care
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Ramos Jr, Alberto Novaes

; Souza, Eliana Amorim de

; Guimarães, Maria Cristina Soares

; Vermeij, Debbie

; Cruz, Marly Marques

; Luquetti, Alejandro O.

; Diotaiuti, Liléia

; Palmeira, Swamy Lima

; Lima, Mayara Maia

; Costa, Veruska Maia da

; Andrade, Luiz Antonio Botelho

; Correia, Dalmo

; Sousa, Andréa Silvestre de

Revista da Sociedade Brasileira de Medicina Tropical

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2022, Volume 55 elocation e0193-2022

Abstract: En | Text: En | PDF: En

https://doi.org/10.1590/0037-8682-0193-2022

Prognosis of chronic Chagas heart disease and other pending clinical challenges
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Torres, Rosália Morais

; Correia, Dalmo

; Nunes, Maria do Carmo Pereira

; Dutra, Walderez O

; Talvani, André

; Sousa, Andréa Silvestre

; Mendes, Fernanda de Souza Nogueira Sardinha

; Scanavacca, Maurício Ibrahim

; Pisani, Cristiano

; Moreira, Maria da Consolação Vieira

; de Souza, Dilma do Socorro Moraes

; de Oliveira Junior, Wilson

; Martins, Silvia Marinho

; Dias, João Carlos Pinto

Memórias do Instituto Oswaldo Cruz

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2022, Volume 117 elocation e210172

Abstract: En | Text: En | PDF: En

In this chapter, the main prognostic markers of Chagas heart disease are addressed, with an emphasis on the most recent findings and questions, establishing the basis for a broad discussion of recommendations and new approaches to managing Chagas cardiopathy. The main biological and genetic markers and the contribution of the electrocardiogram, echocardiogram and cardiac magnetic resonance are presented. We also discuss the most recent therapeutic proposals for heart failure, thromboembolism and arrhythmias, as well as current experience in heart transplantation in patients suffering from severe Chagas cardiomyopathy. The clinical and epidemiological challenges introduced by acute Chagas disease due to oral contamination are discussed. In addition, we highlight the importance of ageing and comorbidities in influencing the outcome of chronic Chagas heart disease. Finally, we discuss the importance of public policies, the vital role of funding agencies, universities, the scientific community and health professionals, and the application of new technologies in finding solutions for better management of Chagas heart disease.

https://doi.org/10.1590/0074-02760210172

Trypanosoma cruzi vectors and reservoirs in Southern Sergipe
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Euzébio, Diana Matos

; Santos, Fábia Regina dos

; Cruz, Daniel Matos Euzébio de Queiroz da

; Varjão, Ana Elisabeth Leal

; Costa, Isabela Soares

; Manhães, Guilherme Lopes Vasconcelos

; Nascimento, Eduardo Melo

; Correia, Dalmo

; Silva, Angela Maria da

Revista da Sociedade Brasileira de Medicina Tropical

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2021, Volume 54 elocation e0740-2020

Abstract: En | Text: En | PDF: En

Abstract INTRODUCTION: Chagas disease is a health problem that affects approximately 7 million people worldwide, according to the World Health Organization. Vector transmission is one of the most important routes in South and Central American countries. Between 2013 and 2019, municipalities of Sergipe sent 507 triatomines for analysis, unveiling the largest records found in the south in the villages of Poço da Clara, Alagoinhas and Pilões, and the municipality of Tobias Barreto. The high prevalence of infected vectors in these localities motivated this epidemiological study. METHODS: After educational lectures on the vectors and risks of the disease, a structured questionnaire was administered to identify areas and risk factors for transmission of the parasite. The data guided the collection of vectors and blood samples from domestic reservoirs. RESULTS: The studied region is considered endemic for triatomines infected by Trypanosoma cruzi with three species of vectors; the highest prevalence was Panstrongylus lutzi (54.83%), followed by Triatoma pseudomaculata (43.54%), and Triatoma tibiamaculata (1.61%). In the villages in this study, 100% of the vectors were found intradomically. The coexistence of residents with domestic animals was reported by 62.04% (255) of those surveyed. Forty-one small animals that were actively living with humans at home in the localities were evaluated serologically. No infection was observed in the domestic animals. CONCLUSIONS: There are favorable conditions for the domiciliation of triatomines in the evaluated locations, contributing to the risk of vectorial transmission of Chagas disease.

https://doi.org/10.1590/0037-8682-0740-2020

Molecular characterization of Blastocystis subtypes isolated in the city of Uberaba, Minas Gerais State, Brazil
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Cabrine-Santos, Marlene

; Moura, Renata Gregório Franco

; Pedrosa, André Luiz

; Correia, Dalmo

; Oliveira-Silva, Márcia Benedita de

Revista da Sociedade Brasileira de Medicina Tropical

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2021, Volume 54 elocation e0305-2021

Abstract: En | Text: En | PDF: En

Abstract INTRODUCTION Blastocystis is an intestinal protozoan that may play a role in the pathogenicity of humans. This study aimed to (i) genetically characterize Blastocystis isolates obtained from human fecal samples and the water supply of the city of Uberaba, Minas Gerais, Brazil, and (ii) to verify the phylogenetic relationship between these isolates. METHODS Blastocystis species present in 26 fecal samples obtained from humans and animals from Uberaba were genetically characterized by polymerase chain reaction-restriction fragment length polymorphism and polymerase chain reaction-sequence-tagged sites. All amplicons were partially sequenced and/or defined according to the GenBank classification. RESULTS Polymerase chain reaction amplicons were generated from 21 human isolates and 18 water samples. The subtypes defined were ST1 (53.3%), ST3 (40.0%), and ST2 (6.7%) for human isolates; ST10 (100%) for bovine isolates; and ST5 (50.0%), ST1 (25%), and ST3 (25%) for pigs. Sequencing of polymerase chain reaction products showed a 98%-99% identity for the Blastocystis sequences deposited in GenBank, except for sequences from water samples that showed the identity of algae sequences. Phylogenetic analysis of Blastocystis sequences showed two distinct groups, one of which was principally formed by ST1, ST5, and ST10, and the other by isolates characterized as ST3 and ST7. Both clades showed human and animal sequences, reinforcing the notion that Blastocystis subtypes are not host-specific. CONCLUSIONS The data showed that Blastocystis subtypes circulating in Uberaba are ST1-ST3, ST5, and ST10, present in both humans and animals, demonstrating that the Blastocystis subtypes are not host-specific; that is, zoonotic transmission is possible.

https://doi.org/10.1590/0037-8682-0305-2021

Oswaldo Gonçalves Cruz: archives, memory and history
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Correia, Dalmo

; Lima, Ana Luce Girão Soares de

; Daniel-Ribeiro, Cláudio Tadeu

Revista da Sociedade Brasileira de Medicina Tropical

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2020, Volume 53 Suppl. 1 elocation e20200313b

Abstract: En | Text: En | PDF: En

https://doi.org/10.1590/0037-8682-0313b-2020

Correlation between the cytokine profile and anticongestive medication in patients with chronic chagasic cardiopathy
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Sousa, Rodrigo Cunha de

; Deus, Diego Bernardo de

; Costa, Thiago Álvares da

; Silva, Marcos Vinícius da

; Rodrigues Junior, Virmondes

; Correia, Dalmo

Revista da Sociedade Brasileira de Medicina Tropical

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2019, Volume 52 elocation e20190386

Abstract: En | Text: En | PDF: En

Abstract INTRODUCTION: Chronic chagasic cardiopathy (CCC) is essentially a dilated cardiomyopathy in which a subacute, but constant chronic inflammatory process causes progressive destruction of the heart tissue. The action of proinflammatory cytokines, such as tumor necrosis factor alpha (TNF-α), interferon gamma (IFN-γ), and anti-inflammatory cytokines, like interleukin IL-10 and IL-17, plays a fundamental role in the immunopathogenesis and evolution of disease. Early anti-congestive therapy, aimed at changing the morbidity and mortality rate, has been shown to reduce disease progression and to alter patients’ immune response pattern. METHODS: This cross-sectional study aimed to evaluate the profile of Th1 and Th17 cytokines and IL-17, TNF-α, and IFN-γ expressions in different stages of CCC. Forty patients affected by chronic Chagas disease were divided into different groups according to the stage of the pathology. In agreement with the Brazilian consensus on Chagas disease, patients were classified as presenting an undetermined form, a cardiac form and a digestive form. Serum IFN-γ, TNF-α, IL-10, and IL-17 were evaluated. RESULTS: Lower serum IFN-γ concentrations were detected in patients receiving angiotensin-converting enzyme inhibitors (p = 0.0182), but not in those using angiotensin receptor blockers (p = 0.0783). Patients using amiodarone and aldosterone antagonist presented higher serum TNF-α concentrations (p = 0.0106 and 0.0187, respectively). IL-10 and IL-17 levels did not differ between the study groups (p = 0.7273 and p = 0.6697, respectively). CONCLUSIONS: These results suggest that the cytokine profile and disease progression are altered by anti-congestive medications commonly prescribed for CCC.

https://doi.org/10.1590/0037-8682-0386-2019

Clinical and epidemiological characteristics of Chagas disease in an endemic area of Sergipe State, Brazil
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Glass, Ivani Rodrigues

; Santos, Allan Dantas dos

; Varjão, Ana Elisabeth Leal

; Costa, Isabela Soares

; Correia, Dalmo

; Silva, Ângela Maria

Revista da Sociedade Brasileira de Medicina Tropical

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oct 2018, Volume 51 N. 5 Pages 660 - 664

Abstract: En | Text: En | PDF: En

Abstract INTRODUCTION: We evaluated clinical and epidemiological characteristics of Trypanosoma cruzi infection in Sergipe. METHODS: In this cross-sectional study, we collected serum samples to identify serological markers of Chagas disease. A questionnaire was used, and electrocardiogram, echocardiogram, chest radiography, and contrast radiography of esophagus and colon were performed. RESULTS: T. cruzi infection seroprevalence was 12.1%, mean age of subjects was 55 years, 90% had an elementary school education, 78.6% were agriculture workers, and 60.5% had electrocardiographic abnormalities. CONCLUSIONS: A high prevalence of T. cruzi infection was observed in mostly elderly individuals.

https://doi.org/10.1590/0037-8682-0067-2018

10.

Systematic neonatal screening for congenital Chagas disease in Northeast Brazil: prevalence of Trypanosoma cruzi infection in the Southern region of Sergipe
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Santos, Fábia Regina dos

; Euzébio, Diana Matos

; Oliveira, Genilde Gomes de

; Chagas, Mayra Souza

; Ferreira, Alex Ricardo

; Mendonça, Lídia Almeida

; Correia, Dalmo

; Silva, Angela Maria da

Revista da Sociedade Brasileira de Medicina Tropical

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jun 2018, Volume 51 N. 3 Pages 310 - 317

Abstract: En | Text: En | PDF: En

Abstract INTRODUCTION: Chagas disease is caused by the flagellate protozoan Trypanosoma cruzi, being one of the leading causes of morbidity and mortality in the Americas with an estimated six to seven million infected people worldwide. In Brazil, the improvement in vector control and blood donor screening has evidenced the important epidemiological role of congenital transmission of Chagas disease. METHODS: A serological survey for Chagas disease was performed in 3,952 newborns in the southern region of Sergipe using paper filter disks of dried blood samples. The newborns were screened using the Sergipe State Neonatal Screening Program between July 2015 and July 2016, and 3,749 and 750 blood samples were obtained for the IgG enzyme-linked immunosorbent assay and indirect immunofluorescence assay, respectively. In addition, mothers of the children who presented initial reagent serology were examined. RESULTS: Among 3,749 blood samples, samples of two children were positive for the enzyme-linked immunosorbent assay; however, their confirmation test results were negative, suggesting passive transfer of the mother’s antibody. One puerpera was identified with Chagas disease, with a prevalence of 0.02%. CONCLUSIONS: Congenital Chagas disease was not observed in newborns in the Southern region of Sergipe. However, Chagas disease was observed in women of reproductive age. Therefore, effective measurements for monitoring and systematic evaluation should be conducted. The Neonatal Screening Program proved to be an effective public health strategy for the prevention and control of Chagas disease.

https://doi.org/10.1590/0037-8682-0024-2018

11.

Towards control of Chagas disease: the contribution of the new brazilian consensus
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Ramos Jr, Alberto Novaes

; Dias, João Carlos Pinto

; Correia, Dalmo

Revista da Sociedade Brasileira de Medicina Tropical

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dec 2016, Volume 49 Suppl. 1 Pages 1 - 2

Abstract: En | Text: En | PDF: En

https://doi.org/10.1590/0037-8682-0504-2016

12.

2 nd Brazilian Consensus on Chagas Disease, 2015
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Dias, João Carlos Pinto

; Ramos Jr., Alberto Novaes

; Gontijo, Eliane Dias

; Luquetti, Alejandro

; Shikanai-Yasuda, Maria Aparecida

; Coura, José Rodrigues

; Torres, Rosália Morais

; Melo, José Renan da Cunha

; Almeida, Eros Antonio de

; Oliveira Jr., Wilson de

; Silveira, Antônio Carlos

; Rezende, Joffre Marcondes de

; Pinto, Fabiane Scalabrini

; Ferreira, Antonio Walter

; Rassi, Anis

; Fragata Filho, Abílio Augusto

; Sousa, Andréa Silvestre de

; Correia, Dalmo

; Jansen, Ana Maria

; Andrade, Glaucia Manzan Queiroz

; Britto, Constança Felícia De Paoli de Carvalho

; Pinto, Ana Yecê das Neves

; Rassi Jr., Anis

; Campos, Dayse Elisabeth

; Abad-Franch, Fernando

; Santos, Silvana Eloi

; Chiari, Egler

; Hasslocher-Moreno, Alejandro Marcel

; Moreira, Eliane Furtado

; Marques, Divina Seila de Oliveira

; Silva, Eliane Lages

; Marin-Neto, José Antonio

; Galvão, Lúcia Maria da Cunha

; Xavier, Sergio Salles

; Valente, Sebastião Aldo da Silva

; Carvalho, Noêmia Barbosa

; Cardoso, Alessandra Viana

; Silva, Rafaella Albuquerque e

; Costa, Veruska Maia da

; Vivaldini, Simone Monzani

; Oliveira, Suelene Mamede

; Valente, Vera da Costa

; Lima, Mayara Maia

; Alves, Renato Vieira

Revista da Sociedade Brasileira de Medicina Tropical

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dec 2016, Volume 49 Suppl. 1 Pages 3 - 60

Abstract: En | Text: En | PDF: En

Abstract Chagas disease is a neglected chronic condition with a high burden of morbidity and mortality. It has considerable psychological, social, and economic impacts. The disease represents a significant public health issue in Brazil, with different regional patterns. This document presents the evidence that resulted in the Brazilian Consensus on Chagas Disease. The objective was to review and standardize strategies for diagnosis, treatment, prevention, and control of Chagas disease in the country, based on the available scientific evidence. The consensus is based on the articulation and strategic contribution of renowned Brazilian experts with knowledge and experience on various aspects of the disease. It is the result of a close collaboration between the Brazilian Society of Tropical Medicine and the Ministry of Health. It is hoped that this document will strengthen the development of integrated actions against Chagas disease in the country, focusing on epidemiology, management, comprehensive care (including families and communities), communication, information, education, and research .

https://doi.org/10.1590/0037-8682-0505-2016

13.

New cases of Chagas disease in a rural area of Northeast Brazilian
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Euzébio, Diana Matos

; Oliveira, Genilde Gomes

; Costa, Flávia Oliveira da

; Correia, Dalmo

; Costa, Bernard Guimarães

; Silva, Angela Maria

Revista da Sociedade Brasileira de Medicina Tropical

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apr 2016, Volume 49 N. 2 Pages 245 - 247

Abstract: En | Text: En | PDF: En

Abstract: INTRODUCTION: Chagas disease is considered one of the 17 most neglected tropical diseases in the World, with the most common form of vector transmission. METHODS: This structured cross-sectional study was conducted through an epidemiological survey in the Tobias Barreto municipality of Sergipe. RESULTS: Of the 255 participants, 1 (0.4%) participant was positive for human Chagas disease. Approximately 30.2% of the participants found the triatomine bugs in their houses and outbuildings. CONCLUSIONS: The detection of a case indicated transmission, which was also evidenced by the presence of triatomines and poor housing conditions.

https://doi.org/10.1590/0037-8682-0340-2015

14.

OCCURRENCE OF Blastocystis spp. IN UBERABA, MINAS GERAIS, BRAZIL
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CABRINE-SANTOS, Marlene

; CINTRA, Eduardo do Nascimento

; CARMO, Rafaela Andrade do

; NASCENTES, Gabriel Antônio Nogueira

; PEDROSA, André Luiz

; CORREIA, Dalmo

; OLIVEIRA-SILVA, Márcia Benedita de

Revista do Instituto de Medicina Tropical de São Paulo

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jun 2015, Volume 57 N. 3 Pages 211 - 214

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

Parasitos intestinais são um problema de saúde pública no mundo e a infecção por Blastocystis, protozoário de patogenicidade controversa, é uma das mais frequentes. Nesse estudo foi investigada a ocorrência de parasitos intestinais em pacientes atendidos na Universidade Federal do Triângulo Mineiro, em Uberaba (MG), com ênfase em Blastocystis, pelos métodos parasitológicos direto e de Ritchie. Foram examinadas fezes de 1.323 pacientes de abril/2011 a maio/2012. Em 28,7% deles foi identificado um parasito intestinal, sendo Blastocystis spp. (17,8%) e Giardia intestinalis(7,4%) os mais frequentes. A ocorrência de parasitismo foi maior em crianças de 6-10 anos e a infecção por Blastocystis spp. foi maior acima de seis anos (p < 0,001). Presença exclusiva de G. intestinalis e de Blastocystis spp. foi observada em 5,4% e 12,2% dos pacientes, respectivamente, sendo que dos pacientes com fezes diarreicas, 8% apresentavam parasitismo exclusivo por Blastocystisspp. Outros parasitos intestinais observados em crianças foram Ascaris lumbricoides (0,3%) e Entamoeba histolytica/dispar/moshkovskii (1,4%). O método de Ritchie foi mais sensível (92,8%) que o direto (89,8%), com alta concordância entre eles (97,7%, kappa = 0,92). Em conclusão, a ocorrência de Blastocystis spp. em Uberaba é elevada e foi observada a presença de fezes diarreicas com parasitismo exclusivo por Blastocystis spp.

Intestinal parasites are a problem for public health all over the world. The infection with Blastocystis, a protozoan of controversial pathogenicity, is one of the most common among them all. In this study, the occurrence of intestinal parasites, with emphasis on Blastocystis, in patients at the Universidade Federal do Triângulo Mineiro was investigated in Uberaba (MG) through microscopy of direct smears and fecal concentrates using Ritchie’s method. Feces of 1,323 patients were examined from April 2011 to May 2012. In 28.7% of them at least one intestinal parasite was identified, and the most frequent organisms were Blastocystis spp. (17.8%) and Giardia intestinalis (7.4%). The occurrence of parasitism was higher in children aged 6 -10 years old, and the infection with Blastocystis spp. was higher above the age of six (p < 0.001). The exclusive presence of G. intestinalis and of Blastocystis spp. was observed in 5.4% and 12.2% of the patients, respectively. Regarding patients with diarrheic feces, 8% revealed unique parasitism of Blastocystis spp. Other intestinal parasites observed in children were Ascaris lumbricoides(0.3%) and Entamoeba histolytica/dispar/moshkovskii (1.4%). The Ritchie’s method was more sensitive (92.8%) when compared to direct microscopy (89.8%), with high agreement between them (97.7%, kappa = 0.92). In conclusion, the occurrence of Blastocystis spp. in Uberaba is high and the presence of diarrheic feces with exclusive presence of the parasite of Blastocystis spp. was observed.

https://doi.org/10.1590/S0036-46652015000300005

15.

High similarity of Trypanosoma cruzikDNA genetic profiles detected by LSSP-PCR within family groups in an endemic area of Chagas disease in Brazil
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Alkmim-Oliveira, Sandra Maria

; Kappel, Henrique Borges

; Andrade, Cristiane Pontes

; Prata, Aluízio

; Ramirez, Luis Eduardo

; Correia, Dalmo

; Lages-Silva, Eliane

Revista da Sociedade Brasileira de Medicina Tropical

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oct 2014, Volume 47 N. 5 Pages 653 - 656

Abstract: En | Text: En | PDF: En

IntroductionDetermining the genetic similarities among Trypanosoma cruzi populations isolated from different hosts and vectors is very important to clarify the epidemiology of Chagas disease.MethodsAn epidemiological study was conducted in a Brazilian endemic area for Chagas disease, including 76 chronic chagasic individuals (96.1% with an indeterminate form; 46.1% with positive hemoculture).ResultsT. cruzi I (TcI) was isolated from one child and TcII was found in the remaining (97.1%) subjects. Low-stringency single-specific-primer-polymerase chain reaction (LSSP-PCR) showed high heterogeneity among TcII populations (46% of shared bands); however, high similarities (80-100%) among pairs of mothers/children, siblings, or cousins were detected.ConclusionsLSSP-PCR showed potential for identifying similar parasite populations among individuals with close kinship in epidemiological studies of Chagas disease.

https://doi.org/10.1590/0037-8682-0255-2013

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