Indirect Immunofluorescence Assay
Mostrando 1-12 de 477 artigos, teses e dissertações.
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1. Performance evaluation of an indirect immunofluorescence kit for the serological diagnosis of dengue
RESUMO Objetivo: Avaliar o desempenho da imunofluorescência indireta no diagnóstico sorológico de dengue em uma população com alta prevalência de arboviroses. Métodos: Duzentas amostras de soro de pacientes com suspeita clínica de dengue foram testadas por ensaio imunoenzimático e imunofluorescência indireta mosaico BIOCHIP®. Foram calculados es
Einstein (São Paulo). Publicado em: 20/12/2019
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2. A quantitative enzyme-linked immunosorbent assay (ELISA) for the detection of anti-double-stranded DNA IgG antibodies
RESUMO Introdução: A detecção de anticorpos contra o ácido desoxirribonucleico (DNA) nativo (ds) é um dos critérios de classificação para o diagnóstico do lúpus eritematoso sistêmico (LES). Objetivo: Descrever uma técnica imunoenzimática enzyme-linked immunosorbent assay (ELISA) quantitativa para a detecção de anticorpos imunoglobulina da c
J. Bras. Patol. Med. Lab.. Publicado em: 23/05/2019
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3. Circulation of spotted fever group rickettsiae among dogs seropositive for Leishmania spp. in an urban area of Brazil
Abstract INTRODUCTION: Dogs play an epidemiological role in several vector-borne diseases that affect human and animal health worldwide. We aimed to identify rickettsial circulation among dogs with canine visceral leishmaniasis (CVL) from a region endemic for both diseases. METHODS: CVL-seropositive dogs were screened for spotted fever group rickettsiae
Rev. Soc. Bras. Med. Trop.. Publicado em: 21/02/2019
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4. Linfoma leucemizado em felino coinfectado com os vírus da imunodeficiência felina e da leucemia felina: relato de caso
RESUMO O presente trabalho teve por objetivo relatar um caso de linfoma leucemizado em um felino coinfectado com os vírus da imunodeficiência felina (FIV) e o da leucemia felina (FeLV). Foram realizados exames de hemograma, contagem de reticulócitos, mielograma, bioquímica, teste de imunocromatografia para FIV e FeLV, imunofluorescência indireta (IFA) p
Arq. Bras. Med. Vet. Zootec.. Publicado em: 2019-02
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5. Systematic neonatal screening for congenital Chagas disease in Northeast Brazil: prevalence of Trypanosoma cruzi infection in the Southern region of Sergipe
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
Rev. Soc. Bras. Med. Trop.. Publicado em: 2018-06
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6. Natural infection by Trypanosoma cruzi in triatomines and seropositivity for Chagas disease of dogs in rural areas of Rio Grande do Norte, Brazil
Abstract INTRODUCTION: Chagas disease is caused by the protozoa Trypanosoma cruzi. Its main reservoir is the domestic dog, especially in rural areas with favorable characteristics for vector establishment and proliferation. The aims of this study were to collect data, survey and map the fauna, and identify T. cruzi infection in triatomines, as well as to a
Rev. Soc. Bras. Med. Trop.. Publicado em: 2018-04
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7. Anti-neutrophil cytoplasmic antibodies in new-onset systemic lupus erythematosus
Abstract: Background: The clinical significance of anti-neutrophil cytoplasmic antibodies in patients with new-onset systemic lupus erythematosus, especially in systemic disease accompanied by interstitial lung disease remains to be elucidated. Objectives: This study was designed to investigate the role of anti-neutrophil cytoplasmic antibodies in new-onse
An. Bras. Dermatol.. Publicado em: 2017-08
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8. Sexual transmission of American trypanosomiasis in humans: a new potential pandemic route for Chagas parasites
BACKGROUND The Trypanosoma cruzi infection endemic in Latin America has now spread to several countries across four continents; this endemic involves triatomine vector-free protists. We hypothesised that the sexual transmission of T. cruzi contributes to the ongoing spread of Chagas disease. OBJECTIVES A short-term longitudinal study was conducted to eva
Mem. Inst. Oswaldo Cruz. Publicado em: 2017-06
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9. Bartonella species pathogenic for humans infect pets, free-ranging wild mammals and their ectoparasites in the Caatinga biome, Northeastern Brazil: a serological and molecular study
ABSTRACT This study verified the occurrence of Bartonella spp. in dogs, cats, wild mammals and their ectoparasites in Petrolina and Lagoa Grande Counties, Pernambuco, located in a semi-arid region in Northeastern Brazil. Anti-Bartonella spp. antibodies were detected by indirect immunofluorescence assay (IFA) in 24.8% of dogs (27/109) and in 15% of cats (6/40
Braz J Infect Dis. Publicado em: 2017-06
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10. Analysis of the seroprevalence of and factors associated with Chagas disease in an endemic area in Northeastern Brazil
ABSTRACT INTRODUCTION: Chagas disease (CD) is currently considered a neglected disease; hence, identifying the factors associated with its high prevalence is essential. This study aimed to identify the seroprevalence of and the possible factors associated with CD in inhabitants of the City of Limoeiro do Norte, Northeastern Brazil. METHODS: Between April
Rev. Soc. Bras. Med. Trop.. Publicado em: 2017-02
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11. Maxadilan-simile expression in Nyssomyia neivai, a sandfly vector in an endemic region of Brazil, and its immunogenicity in patients with American tegumentary leishmaniasis
BACKGROUND Maxadilan (Max) is a salivary component in the sandfly Lutzomyia longipalpis (Lutz & Neiva 1912), a vector of visceral leishmaniasis. Max has a powerful vasodilatory effect and is a candidate vaccine that has been tested in experimental leishmaniasis. Nyssomyia neivai (Pinto 1926) is a vector of the pathogen responsible for American tegumentary
Mem. Inst. Oswaldo Cruz. Publicado em: 2017-02
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12. Antibodies for Rickettsia spp. in patients with negative serology for dengue virus, leptospirosis, and meningococcal disease in municipalities of São Paulo State, Brazil
Abstract INTRODUCTION Brazilian spotted fever is an infectious disease with a high mortality rate if not treated early. Differential diagnosis is difficult, as the first clinical signs are non-specific and can be confused with other diseases. The aim of the study was to investigate evidence of infection with Rickettsia rickettsii and Rickettsia parkeri in
Rev. Soc. Bras. Med. Trop.. Publicado em: 2016-10