Serologic Tests
Mostrando 1-12 de 214 artigos, teses e dissertações.
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1. Serologic strategy in detecting RHD altered alleles in Brazilian blood donors
ABSTRACT Background: We evaluated different technological approaches and anti-D clones to propose the most appropriate serologic strategy in detecting the largest numbers of D variants in blood donors. Methods: We selected 101 samples from Brazilian blood donors with different expressions of D in our donor routine. The tests were performed in immediate spi
Hematol., Transfus. Cell Ther.. Publicado em: 2020-10
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2. Secondary syphilis with pulmonary involvement mimicking lymphoma: a case report
Abstract We present a case of atypical presentation of secondary syphilis with extensive lymph node involvement and pulmonary lesions, initially suspected as lymphoma. The patient presented with weight loss, dry cough, chest pain, palpable lymph nodes in several peripheral chains, and multiple pulmonary nodules and masses on chest imaging. The key features f
Rev. Soc. Bras. Med. Trop.. Publicado em: 10/10/2019
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3. Specific antigen serologic tests in leprosy: implications for epidemiological surveillance of leprosy cases and household contacts
BACKGROUND There is a lack of straightforward tests for field application and known biomarkers for predicting leprosy progression in infected individuals. OBJECTIVE The aim was to analyse the response to infection by Mycobacterium leprae based on the reactivity of specific antigens: natural disaccharide linked to human serum albumin via an octyl (NDOHSA)
Mem. Inst. Oswaldo Cruz. Publicado em: 2017-09
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4. Evolution of hepatitis B serological markers in HIV coinfected patients: a case study
ABSTRACT OBJECTIVE To describe the evolution of serological markers among HIV and hepatitis B coinfected patients, with emphasis on evaluating the reactivation or seroreversion of these markers. METHODS The study population consisted of patients met in an AIDS Outpatient Clinic in São Paulo State, Brazil. We included in the analysis all HIV-infected and
Rev. Saúde Pública. Publicado em: 30/03/2017
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5. Benznidazole therapy for Chagas disease in asymptomatic Trypanosoma cruzi -seropositive former blood donors: evaluation of the efficacy of different treatment regimens
Abstract: INTRODUCTION: Chagas disease currently affects 5.7 million people in Latin America and is emerging in non-endemic countries. There is no consensus concerning the efficacy of trypanocidal therapy for patients with the chronic form of the disease. We evaluated cardiac function and sociodemographic, clinical, and serologic characteristics of a group
Rev. Soc. Bras. Med. Trop.. Publicado em: 2016-12
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6. Factors associated with seropositivity for APGL-Iamong household contacts of leprosy patients
Abstract: INTRODUCTION: Leprosy is mainly transmitted among family members who share genetic and ambient factors. The clinical form of leprosy in the index case and kinship could be risk factors for leprosy transmission. High antibody levels in household contacts (HC) in the absence of neural or skin lesions may characterize latent infection. This study aim
Rev. Soc. Bras. Med. Trop.. Publicado em: 2016-02
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7. Waterborne toxoplasmosis investigated and analysed under hydrogeological assessment: new data and perspectives for further research
We present a set of data on human and chicken Toxoplasma gondiiseroprevalence that was investigated and analysed in light of groundwater vulnerability information in an area endemic for waterborne toxoplasmosis in Brazil. Hydrogeological assessment was undertaken to select sites for water collection from wells for T. gondii oocyst testing and for collecting
Mem. Inst. Oswaldo Cruz. Publicado em: 2015-11
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8. Hepatitis B virus genotyping in chronic hepatitis B patients in southwestern Saudi Arabia
ABSTRACTThe distribution of hepatitis B virus genotypes in Saudi Arabia is largely unknown. To the best of our knowledge there are no data available about HBV genotypes in southwestern region of the country. This study aimed to determine the epidemiologic distribution of hepatitis B virus genotypes in chronic hepatitis B patients in southwestern region, and
Braz J Infect Dis. Publicado em: 2015-10
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9. Impact of a confirmatory RhD test on the correct serologic typing of blood donors
BACKGROUND: The RHD gene is highly polymorphic, which results in a large number of RhD variant phenotypes. Discrepancies in RhD typing are still a problem in blood banks and increase the risk of alloimmunization. In this study, the RhD typing strategy at a blood bank in Brazil was evaluated.METHODS: One-hundred and fifty-two samples typed as RhD negative and
Rev. Bras. Hematol. Hemoter.. Publicado em: 2015-10
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10. Comparison of recombinant A2-ELISA with rKE16 dipstick and direct agglutination tests for diagnosis of visceral leishmaniasis in dogs in Northwestern Iran
INTRODUCTION: Various methods are used for the diagnosis of visceral leishmaniasis (VL), such as microscopic examination, culture and inoculation of laboratory animals; however, serological assays are commonly used for the detection of antibodies in serum samples with a wide range of specificity and sensitivity. METHODS: The purpose of this study was to com
Rev. Soc. Bras. Med. Trop.. Publicado em: 2015-04
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11. Domestic, peridomestic and wild hosts in the transmission of Trypanosoma cruzi in the Caatinga area colonised by Triatoma brasiliensis
The role played by different mammal species in the maintenance of Trypanosoma cruzi is not constant and varies in time and place. This study aimed to characterise the importance of domestic, wild and peridomestic hosts in the transmission of T. cruzi in Tauá, state of Ceará, Caatinga area, Brazil, with an emphasis on those environments colonised by Triatom
Mem. Inst. Oswaldo Cruz. Publicado em: 22/08/2014
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12. Perfil clínico, laboratorial e epidemiológico de pacientes chagásicos idosos seguidos em um serviço de referência = : Clinical, laboratory and epidemiological profile of elderly chagasic patients followed in a reference service / Clinical, laboratory and epidemiological profile of elderly chagasic patients followed in a reference service
Chagas disease, discovered by Carlos Chagas in 1909, is a disease caused by the protozoan Trypanosoma cruzi, which already had the track vector as their main mode of transmission. With the control of vector transmission, the incidence of new cases decreased, providing a change in the characteristics of the infected population. Currently, the chagasic populat
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/08/2012