Microfilaremic
Mostrando 1-12 de 18 artigos, teses e dissertações.
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1. Evaluation of the recombinant antigens Wb14 and WbT for the capture antibody diagnosis of lymphatic filariasis
BACKGROUND Lymphatic filariasis (LF) is a parasitic disease caused mainly by the Wuchereria bancrofti worm and that affects up to 120 million people worldwide. LF is the second cause of chronic global deformity, responsible for 15 million people with lymphedema (elephantiasis) and 25 million men with scrotal hydrocele. Its diagnosis is still associated wit
Mem. Inst. Oswaldo Cruz. Publicado em: 26/03/2018
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2. Sensitivity of diagnostic methods for Mansonella ozzardi microfilariae detection in the Brazilian Amazon Region
BACKGROUND The human filarial worm Mansonella ozzardi is highly endemic in the large tributaries of the Amazon River. This infection is still highly neglected and can be falsely negative when microfilariae levels are low. OBJECTIVES This study investigated the frequency of individuals with M. ozzardi in riverine communities in Coari municipality, Brazilian
Mem. Inst. Oswaldo Cruz. Publicado em: 2018-03
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3. Wolbachia spp. interfere na detecção molecular de Ehrlichia canis e Anaplasma platys em cães com microfilaremia
This report aimed to study the interference in molecular testing for Ehrlichia canis and Anaplasma platys in blood of 155 dogs from the coastal region of Rio de Janeiro. Five Anaplasmataceae positive samples but negative for E. canis and A. platys, from microfilaremic animals, were chosen for sequencing. These sequences, when compared to Gen et Bank database
Arq. Bras. Med. Vet. Zootec.. Publicado em: 2015-08
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4. Assessment of family and neighbors of an individual infected with Wuchereria bancrofti from a non-endemic area in the city of Maceió, Brazil
The family and neighbors of a patient infected with W. bancrofti microfilariae were assessed aiming to evaluate the occurrence of cases of lymphatic filariasis in a non-endemic area in the city of Maceió, in the Brazilian state of Alagoas. The patient had previously lived in an endemic focus; however, he has been living in an area where the parasite has nev
Brazilian Journal of Infectious Diseases. Publicado em: 2010-04
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5. Situação epidemiológica da filariose linfática bancroftiana no município de Maceió, estado de Alagoas. / The epidemiological situation of bancroftian lymphatic filariasis in the municipality of Maceió, state of Alagoas.
Bancroftian lymphatic filariasis is a neglected parasitic illness, known popularly as elephantiasis, because it is one of its chronic clinical manifestations. It is an anthroponotic disease caused by a nematode helminth of the species Wuchereria bancrofti (Cobbold, 1877) (Spirurida: Onchocercidae). Bancroftian filariasis occurs in 83 countries localized in t
Publicado em: 2008
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6. Tratamento coletivo da filariose com dose Ãnica de dietilcarbamazina em residentes de Ãrea endÃmica do Recife, Pernambuco:um estudo antes e depois / Collective treatment for filariasis with first dose dietilcarbamazin in residents of endemic areas of Recife, Pernambuco: a before-after study
In Recife, filariasis is considered endemic since 1950âs decade and remains as one of the major expression residual centers for autochthonous transmission of bancroftian filariasis in Brasil. The collective treatment in medium and high-prevalence areas, as WHO recommended strategy, has been integrated to antivectorial interventions. This study is part of an
Publicado em: 2005
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7. Differential regulation of in vitro humoral and cellular immune responsiveness in Brugia pahangi-infected jirds.
Patent filarial infection is associated with the downregulation of parasite-specific immune reactivity. In the present study, the relationship between in vitro parasite antigen-specific humoral and cellular immune responsiveness was investigated in Brugia pahangi-infected jirds and in jirds immunized with soluble antigens. Spleen cells from B. pahangi-immuni
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8. Differences in the Frequency of Cytokine-Producing Cells in Antigenemic and Nonantigenemic Individuals with Bancroftian Filariasis
Individuals with clinical manifestations of lymphatic filariasis may be currently infected or not. Twenty-five individuals from a Wuchereria bancrofti-endemic area of Brazil were classified as being asymptomatic microfilaremic individuals, antigenemic individuals with clinical filariasis, or nonantigenemic individuals with clinical filariasis. Intracellular
American Society for Microbiology.
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9. Immunologic tolerance in lymphatic filariasis. Diminished parasite-specific T and B lymphocyte precursor frequency in the microfilaremic state.
To explore the mechanisms of antigen-specific immune unresponsiveness seen in microfilaremic patients with bancroftian filariasis, T and B cell precursor frequency analysis was performed using PBMC from individuals with either asymptomatic microfilaremia (MF, n = 7) or chronic lymphatic obstruction (CP, n = 20). Highly purified CD3+ cells were partially reco
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10. Th1-like antifilarial immune responses predominate in antigen-negative persons.
To characterize immune responses associated with the putatively immune state in bancroftian filariasis (that is, both microfilaria and antigen free), humoral and cellular responses were compared among antigen- and microfilaria-negative, antigen-positive and microfilaria-negative, and microfilaria-positive individuals. Antifilarial isotype levels were measure
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11. Differential recognition of a protective filarial antigen by antibodies from humans with bancroftian filariasis.
The objectives of this study were to identify filarial antigens which induce enhanced clearance of circulating microfilariae and to establish if human antibody reactivity with these molecules correlates with the apparent parasite burdens of residents of an endemic area of Bancroftian filariasis. Mice immunized with an extract of Brugia malayi microfilariae d
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12. Perturbations in Eosinophil Homeostasis following Treatment of Lymphatic Filariasis
Treatment of patients with patent Wuchereria bancrofti infection results in an acute clinical reaction and peripheral eosinophilia. To investigate the dynamics of the eosinophil response, changes in eosinophil activation and degranulation and plasma levels of eosinophil-active chemokines and cytokines were studied in 15 microfilaremic individuals in south In
American Society for Microbiology.