Alejandro O. Luquetti

ORCID: 0000-0003-0335-0877
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About
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Research Areas
  • Trypanosoma species research and implications
  • Research on Leishmaniasis Studies
  • Parasites and Host Interactions
  • Insect symbiosis and bacterial influences
  • Synthesis and Biological Evaluation
  • Biochemical and Molecular Research
  • Lysosomal Storage Disorders Research
  • Coenzyme Q10 studies and effects
  • Cardiomyopathy and Myosin Studies
  • Gastrointestinal motility and disorders
  • Child Nutrition and Feeding Issues
  • Helminth infection and control
  • Parasitic Infections and Diagnostics
  • Monoclonal and Polyclonal Antibodies Research
  • Viral Infections and Immunology Research
  • Toxin Mechanisms and Immunotoxins
  • T-cell and Retrovirus Studies
  • Science and Education Research
  • Global Public Health Policies and Epidemiology
  • Galectins and Cancer Biology
  • Toxoplasma gondii Research Studies
  • Cardiovascular Issues in Pregnancy
  • Glycosylation and Glycoproteins Research
  • Gastroesophageal reflux and treatments
  • Immune Cell Function and Interaction

Universidade Federal de Goiás
2015-2025

Universidade Federal da Bahia
2023

Universidade Federal do Rio de Janeiro
2023

Justus-Liebig-Universität Gießen
2010

Universitat de Barcelona
2010

Fundação Oswaldo Cruz
2003

Simón Bolívar University
2003

Universidade de São Paulo
2003

Consejo Nacional de Investigaciones Científicas y Técnicas
2003

Universidade Federal de São Paulo
2003

Background A century after its discovery, Chagas disease still represents a major neglected tropical threat. Accurate diagnostics tools as well surrogate markers of parasitological response to treatment are research priorities in the field. The purpose this study was evaluate performance PCR methods detection Trypanosoma cruzi DNA by an external quality evaluation. Methodology/Findings An international collaborative launched expert laboratories from 16 countries. Currently used strategies...

10.1371/journal.pntd.0000931 article EN cc-by PLoS neglected tropical diseases 2011-01-11

Chagas disease is a neglected chronic condition with high burden of morbidity and mortality. It has considerable psychological, social, economic impacts. The represents significant public health issue in Brazil, different regional patterns. This document presents the evidence that resulted Brazilian Consensus on Disease. objective was to review standardize strategies for diagnosis, treatment, prevention, control country, based available scientific evidence. consensus articulation strategic...

10.1590/0037-8682-0505-2016 article EN cc-by Revista da Sociedade Brasileira de Medicina Tropical 2016-12-01

Chagas disease is a neglected chronic condition that presents high morbidity and mortality burden, with considerable psychological, social, economic impact.The represents significant public health issue in Brazil, different regional patterns.This document the evidence resulted Brazilian Consensus on Disease.The objective was to review standardize strategies for diagnosis, treatment, prevention, control of country, based available scientific evidence.The consensus collaboration contribution...

10.5123/s1679-49742016000500002 article EN cc-by-nc Epidemiologia e Serviços de Saúde 2016-06-01

In the acute phase and in chronic forms of Chagas disease, etiological diagnosis may be performed by detection parasite using direct or indirect parasitological methods presence antibodies serum way serological tests. Several techniques are easily available, ranging from simplest wet smear preparation to immuno-enzymatic assays with recombinant antigens that will meet most diagnostic needs. Other tests under evaluation include a molecular test polymerase chain reaction, which has shown...

10.1590/s0074-02762009000900017 article EN Memórias do Instituto Oswaldo Cruz 2009-07-01

This opinion piece presents an approach to standardisation of important aspect Chagas disease drug discovery and development: selecting Trypanosoma cruzi strains for in vitro screening. We discuss the rationale strain selection representing T. diversity provide recommendations on preferred parasite stage discovery, discrete typing units include panel number strains/clones primary screens lead compounds. also consider experimental approaches assays. The Figure illustrates current...

10.1590/0074-0276140156 article EN cc-by Memórias do Instituto Oswaldo Cruz 2014-08-20

In 2005, the World Health Organization (WHO) recognized Chagas disease (CD; Trypanosoma cruzi infection) as a neglected tropical (NTD) [1] and included it into global plan to combat NTDs [2]. The Target 3.3 of United Nations Sustainable Development Goals (UN/SDG) aims at ending epidemics by 2030 [3]. Mother-to-child (congenital/connatal) transmission is currently main mode T. over blood transfusions organ transplantations in vector-free areas within outside Latin America (LA). Based on...

10.1371/journal.pntd.0007694 article EN cc-by PLoS neglected tropical diseases 2019-10-24
José Antônio Marin‐Neto Anis Rassi Gláucia Maria Moraes de Oliveira Luís Cláudio Lemos Correia Alberto Novaes Ramos and 87 more Alejandro O. Luquetti Alejandro Marcel Hasslocher‐Moreno Andréa Silvestre de Sousa Angêlo Amato Vincenzo de Paola Antônio Carlos Sobral Sousa Antônio Luiz Pinho Ribeiro Dalmo Correia Dilma do Socorro Moraes de Souza Edécio Cunha‐Neto Félix José Alvarez Ramires Fernando Bacal Maria do Carmo Pereira Nunes Martino Martinelli Filho Maurício Scanavacca Roberto Magalhães Saraiva Wilson Alves de Oliveira Adalberto M. Lorga-Filho Adriana de Jesus Benevides de Almeida Guimarães Adriana Lopes Latado Adriana Sarmento de Oliveira Álvaro Valentim Lima Sarabanda Ana Yecê das Neves Pinto André Assis Lopes do Carmo André Schmidt A. Costa Bárbara Maria Ianni Brivaldo Markman Carlos Eduardo Rochitte Carolina Thé Macêdo Charles Mady Christophe Chevillard Cláudio Marcelo Bittencourt das Virgens Cleudson Castro Constança Britto Cristiano Pisani Daniela do Carmo Rassi Dário Celestino Sobral Filho Dirceu Rodrigues Almeida Edimar Alcides Bocchi Evandro Tinoco Mesquita Fernanda de Souza Nogueira Sardinha Mendes Francisca Tatiana Moreira Pereira Gilberto Marcelo Sperandio da Silva Giselle de Lima Peixoto Gustavo Glotz de Lima Henrique Horta Veloso Henrique Turin Moreira Hugo Bellotti Lopes Ibraim Pinto João Marcos Bemfica Barbosa Ferreira João Paulo Silva Nunes José Augusto Soares Barreto-Filho José Francisco Kerr Saraiva Joseli Lannes-Vieira Joselina Luzia Menezes Oliveira Luciana Armaganijan Luíz Cláudio Martins Luiz Henrique Conde Sangenis Marco Paulo Tomaz Barbosa Marcos Antônio Almeida-Santos Marcos Vinicius Simões Maria Aparecida Shikanai‐Yasuda Maria da Consolação Vieira Moreira Maria de Lourdes Higuchi M. Monteiro Mauro Felippe Felix Mediano Mayara Maia Lima Maykon Tavares de Oliveira Minna Moreira Dias Romano Nadjar Nitz Paulo de Tarso Jorge Medeiros Renato Vieira Alves Ricardo Alkmim Teixeira Roberto Coury Pedrosa Roque Aras Rosália Morais Tôrres Rui Póvoa Sérgio Gabriel Rassi Sílvia Marinho Martins Alves Suelene Brito do Nascimento Tavares Swamy Lima Palmeira Telêmaco Luiz da Silva Thiago da Rocha Rodrigues Vagner Madrini Veruska Maia da Costa Walderez O. Dutra João Carlos Pinto Dias

Lista de Siglas/Abreviaturas 18 F-FDG – fluordesoxiglicose marcado com flúor-18 123 I-MIBG meta-iodo-benzil-guanidina iodo-123 […] Diretriz da SBC sobre Diagnóstico e Tratamento Pacientes Cardiomiopatia Doença Chagas 2023

10.36660/abc.20230269 article PT cc-by-nc Arquivos Brasileiros de Cardiologia 2023-01-01

In pokeweed (Pa-1)-stimulated human lymphocyte cultures, T cells are essential for the survival, proliferation, plasma-cell development, and high-rate Ig secretion of B cells. Their effects T-cell-specific in sense that B-cell stimulation does not take place absence even when fibroblasts or monocytes provided. The experimental system is most effective model activation lymphocytes so far described. Plasmablast development requires approximately 7 days culture. + cultures established at 1 X...

10.1111/j.1365-3083.1977.tb00326.x article EN Scandinavian Journal of Immunology 1977-01-01

Background Migration of Latin Americans to the USA, Canada and Europe has modified Chagas disease distribution, but data on imported cases risks local transmission remain scarce. We assessed prevalence risk factors for disease, staged evaluated attitudes towards blood transfusion organ transplant among American migrants in Geneva, Switzerland. Methodology/Principal Findings This cross-sectional study included all consecutive seeking medical care at a primary facility or attending two Latino...

10.1371/journal.pntd.0000592 article EN cc-by PLoS neglected tropical diseases 2010-02-01

Chagas disease is one of the main public health issues in Latin America. Increasingly during past few decades, Trypanosoma cruzi infection has been detected North America, Europe, and Western Pacific, mainly as a result population movement. The limited availability rapid serological diagnostic tests hinders diagnosis early treatment areas endemicity nonendemicity. In collaboration with 11 national reference laboratories (NRLs) from different geographical areas, we evaluated performances...

10.1128/jcm.00144-14 article EN Journal of Clinical Microbiology 2014-05-08

Blood transfusion is one of the most important transmission routes Chagas' disease, a major parasitic infection in Latin America. Therefore, screening for antibodies to Trypanosoma cruzi mandatory blood banks South Most commercial serologic tests employ epimastigote antigens and show high number inconclusive false-positive results, with economic social costs.An ELISA using mixture three T. recombinant antigens, B13, 1F8, H49 (mix-ELISA), was evaluated, first panel well-characterized sera...

10.1046/j.1537-2995.2003.00279.x article EN Transfusion 2003-01-01

ABSTRACT In this study we compared the performance of Chagas Stat-Pak rapid immunochromatographic test with a standard enzyme-linked immunosorbent assay (ELISA) in serodiagnosis Chagas' disease Central America. Out 3,400 blood donor samples, 156 (4.6%) were positive both assays. Three sera out 2,084 samples from reference laboratories negative but ELISA (99.8% agreement). Agreement 100% between two tests was observed 339 additional patients cardiopathies and 175 potential donors emergency...

10.1128/jcm.43.10.5065-5068.2005 article EN Journal of Clinical Microbiology 2005-10-01

The clinical characteristics of acute and chronic Chagas' disease in central Brazil are described (29 cases 111 cases). geographical distribution Trypanosoma cruzi zymodemes this region was mapped. Zymodeme (Z) 1 identified 12 cases, Z2 13 repeated xenodiagnosis gave the same zymodeme identification. pictures Z1 phases were similar. Resistance to benznidazole treatment occurred after either or infections. Only 14 positive xenodiagnoses obtained from phase patients examined. For these...

10.1016/0035-9203(86)90347-0 article EN Transactions of the Royal Society of Tropical Medicine and Hygiene 1986-01-01

ISGlobal work is supported by the Departament d’Universitats i Recerca de la Generalitat Catalunya, Spain (AGAUR; 017SGR00924) and Instituto Salud Carlos III (ISCIII) RICET Network for Cooperative Research in Tropical Diseases (ISCIII; RD16/0027/0004 - PI1290) FEDER. MJP research Ministry of Health, Government Catalonia (PERIS 2016-2010 SLT008/18/00132). ICA, JG, FT are grant number U01AI129783 from National Institute Allergy Infectious (NIAID), Institutes Health (NIH). ICA also partly...

10.1371/journal.pntd.0008035 article EN cc-by PLoS neglected tropical diseases 2020-04-23

ABSTRACT An enzyme-linked immunosorbent assay to diagnose Chagas' disease by a serological test was performed with Trypanosoma cruzi recombinant antigens (JL8, MAP, and TcPo). High sensitivity (99.4%) specificity (99.3%) were obtained when JL8 combined MAP (JM) tested 150 serum samples from chagasic 142 nonchagasic individuals. Moreover, JM also diagnosed 84.2% of patients in the acute phase T. infection.

10.1128/jcm.42.1.449-452.2004 article EN Journal of Clinical Microbiology 2004-01-01
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