RELATED FACTORS FOR COLONIZATION BY Candida SPECIES IN THE ORAL CAVITY OF HIV-INFECTED INDIVIDUALS
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista do Instituto de Medicina Tropical de São Paulo |
Texto Completo: | https://www.revistas.usp.br/rimtsp/article/view/112728 |
Resumo: | The colonization of the oral cavity is a prerequisite to the development of oropharyngeal candidiasis. Aims: The aims of this study were: to evaluate colonization and quantify Candida spp. in the oral cavity; to determine the predisposing factors for colonization; and to correlate the levels of CD4+ cells and viral load with the yeast count of colony forming units per milliliter (CFU/mL) in HIV-positive individuals treated at a University Hospital. Saliva samples were collected from 147 HIV patients and were plated on Sabouraud Dextrose Agar (SDA) and chromogenic agar, and incubated at 30 ºC for 72 h. Colonies with similar morphology in both media were counted and the result expressed in CFU/mL. Results: Of the 147 HIV patients, 89 had positive cultures for Candida spp., with a total of 111 isolates, of which C. albicans was the most frequent species (67.6%), and the mean of colonies counted was 8.8 × 10³ CFU/mL. The main predisposing factors for oral colonization by Candida spp. were the use of antibiotics and oral prostheses. The use of reverse transcriptase inhibitors appears to have a greater protective effect for colonization. A low CD4+ T lymphocyte count is associated with a higher density of yeast in the saliva of HIV patients. |
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RELATED FACTORS FOR COLONIZATION BY Candida SPECIES IN THE ORAL CAVITY OF HIV-INFECTED INDIVIDUALS Fatores relacionados a colonização da cavidade bucal de indivíduos portadores do HIV por espécies de Candida The colonization of the oral cavity is a prerequisite to the development of oropharyngeal candidiasis. Aims: The aims of this study were: to evaluate colonization and quantify Candida spp. in the oral cavity; to determine the predisposing factors for colonization; and to correlate the levels of CD4+ cells and viral load with the yeast count of colony forming units per milliliter (CFU/mL) in HIV-positive individuals treated at a University Hospital. Saliva samples were collected from 147 HIV patients and were plated on Sabouraud Dextrose Agar (SDA) and chromogenic agar, and incubated at 30 ºC for 72 h. Colonies with similar morphology in both media were counted and the result expressed in CFU/mL. Results: Of the 147 HIV patients, 89 had positive cultures for Candida spp., with a total of 111 isolates, of which C. albicans was the most frequent species (67.6%), and the mean of colonies counted was 8.8 × 10³ CFU/mL. The main predisposing factors for oral colonization by Candida spp. were the use of antibiotics and oral prostheses. The use of reverse transcriptase inhibitors appears to have a greater protective effect for colonization. A low CD4+ T lymphocyte count is associated with a higher density of yeast in the saliva of HIV patients. A colonização da cavidade oral pode ser considerada um pré-requisito para o desenvolvimento de candidíase orofaríngea. Os objetivos deste estudo foram: avaliar e quantificar espécies de Candidaisoladas da cavidade oral, para determinar os fatores predisponentes para a colonização, e correlacionar os níveis de células CD4+ e carga viral em indivíduos HIV-positivos atendidos em um hospital universitário. Foram coletadas amostras de saliva de 147 pacientes portadores do HIV, as quais foram semeadas em Ágar Sabouraud Dextrose (ASD) e ágar cromogênico e incubadas a 30 °C por 72 horas. As colônias com morfologia semelhante em ambos os meios foram contadas e o resultado expresso em unidade formadora de colônias por mililitro (UFC/mL). Dos 147 pacientes HIV positivos, 89 apresentaram culturas positivas para Candidaspp., totalizando 111 isolados, e C. albicansfoi a espécie mais frequente (67,6%). A contagem média de colônias foi de 8.8 × 10³ UFC/mL. Os principais fatores predisponentes para colonização oral por Candidaspp. foram a utilização de antibióticos e de próteses orais. O uso de antirretroviral da classe de inibidores da transcriptase reversa pareceu ter maior efeito protetor para a colonização. Baixa contagem de linfócitos T CD4+ está relacionada com maior densidade de leveduras na saliva de indivíduos HIV positivos. Universidade de São Paulo. Instituto de Medicina Tropical de São Paulo2015-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/rimtsp/article/view/112728Revista do Instituto de Medicina Tropical de São Paulo; Vol. 57 No. 5 (2015); 413-419Revista do Instituto de Medicina Tropical de São Paulo; Vol. 57 Núm. 5 (2015); 413-419Revista do Instituto de Medicina Tropical de São Paulo; v. 57 n. 5 (2015); 413-4191678-99460036-4665reponame:Revista do Instituto de Medicina Tropical de São Pauloinstname:Instituto de Medicina Tropical (IMT)instacron:IMTenghttps://www.revistas.usp.br/rimtsp/article/view/112728/110649Copyright (c) 2018 Revista do Instituto de Medicina Tropical de São Pauloinfo:eu-repo/semantics/openAccessMENEZES, Ralciane de PaulaBORGES, Aércio SebastiãoARAUJO, Lúcio Borges dePEDROSO, Reginaldo dos SantosRÖDER, Denise Von Dolinger de Brito2016-03-23T16:28:46Zoai:revistas.usp.br:article/112728Revistahttp://www.revistas.usp.br/rimtsp/indexPUBhttps://www.revistas.usp.br/rimtsp/oai||revimtsp@usp.br1678-99460036-4665opendoar:2022-12-13T16:52:34.933820Revista do Instituto de Medicina Tropical de São Paulo - Instituto de Medicina Tropical (IMT)true |
dc.title.none.fl_str_mv |
RELATED FACTORS FOR COLONIZATION BY Candida SPECIES IN THE ORAL CAVITY OF HIV-INFECTED INDIVIDUALS Fatores relacionados a colonização da cavidade bucal de indivíduos portadores do HIV por espécies de Candida |
title |
RELATED FACTORS FOR COLONIZATION BY Candida SPECIES IN THE ORAL CAVITY OF HIV-INFECTED INDIVIDUALS |
spellingShingle |
RELATED FACTORS FOR COLONIZATION BY Candida SPECIES IN THE ORAL CAVITY OF HIV-INFECTED INDIVIDUALS MENEZES, Ralciane de Paula |
title_short |
RELATED FACTORS FOR COLONIZATION BY Candida SPECIES IN THE ORAL CAVITY OF HIV-INFECTED INDIVIDUALS |
title_full |
RELATED FACTORS FOR COLONIZATION BY Candida SPECIES IN THE ORAL CAVITY OF HIV-INFECTED INDIVIDUALS |
title_fullStr |
RELATED FACTORS FOR COLONIZATION BY Candida SPECIES IN THE ORAL CAVITY OF HIV-INFECTED INDIVIDUALS |
title_full_unstemmed |
RELATED FACTORS FOR COLONIZATION BY Candida SPECIES IN THE ORAL CAVITY OF HIV-INFECTED INDIVIDUALS |
title_sort |
RELATED FACTORS FOR COLONIZATION BY Candida SPECIES IN THE ORAL CAVITY OF HIV-INFECTED INDIVIDUALS |
author |
MENEZES, Ralciane de Paula |
author_facet |
MENEZES, Ralciane de Paula BORGES, Aércio Sebastião ARAUJO, Lúcio Borges de PEDROSO, Reginaldo dos Santos RÖDER, Denise Von Dolinger de Brito |
author_role |
author |
author2 |
BORGES, Aércio Sebastião ARAUJO, Lúcio Borges de PEDROSO, Reginaldo dos Santos RÖDER, Denise Von Dolinger de Brito |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
MENEZES, Ralciane de Paula BORGES, Aércio Sebastião ARAUJO, Lúcio Borges de PEDROSO, Reginaldo dos Santos RÖDER, Denise Von Dolinger de Brito |
description |
The colonization of the oral cavity is a prerequisite to the development of oropharyngeal candidiasis. Aims: The aims of this study were: to evaluate colonization and quantify Candida spp. in the oral cavity; to determine the predisposing factors for colonization; and to correlate the levels of CD4+ cells and viral load with the yeast count of colony forming units per milliliter (CFU/mL) in HIV-positive individuals treated at a University Hospital. Saliva samples were collected from 147 HIV patients and were plated on Sabouraud Dextrose Agar (SDA) and chromogenic agar, and incubated at 30 ºC for 72 h. Colonies with similar morphology in both media were counted and the result expressed in CFU/mL. Results: Of the 147 HIV patients, 89 had positive cultures for Candida spp., with a total of 111 isolates, of which C. albicans was the most frequent species (67.6%), and the mean of colonies counted was 8.8 × 10³ CFU/mL. The main predisposing factors for oral colonization by Candida spp. were the use of antibiotics and oral prostheses. The use of reverse transcriptase inhibitors appears to have a greater protective effect for colonization. A low CD4+ T lymphocyte count is associated with a higher density of yeast in the saliva of HIV patients. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-10-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://www.revistas.usp.br/rimtsp/article/view/112728 |
url |
https://www.revistas.usp.br/rimtsp/article/view/112728 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://www.revistas.usp.br/rimtsp/article/view/112728/110649 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2018 Revista do Instituto de Medicina Tropical de São Paulo info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2018 Revista do Instituto de Medicina Tropical de São Paulo |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade de São Paulo. Instituto de Medicina Tropical de São Paulo |
publisher.none.fl_str_mv |
Universidade de São Paulo. Instituto de Medicina Tropical de São Paulo |
dc.source.none.fl_str_mv |
Revista do Instituto de Medicina Tropical de São Paulo; Vol. 57 No. 5 (2015); 413-419 Revista do Instituto de Medicina Tropical de São Paulo; Vol. 57 Núm. 5 (2015); 413-419 Revista do Instituto de Medicina Tropical de São Paulo; v. 57 n. 5 (2015); 413-419 1678-9946 0036-4665 reponame:Revista do Instituto de Medicina Tropical de São Paulo instname:Instituto de Medicina Tropical (IMT) instacron:IMT |
instname_str |
Instituto de Medicina Tropical (IMT) |
instacron_str |
IMT |
institution |
IMT |
reponame_str |
Revista do Instituto de Medicina Tropical de São Paulo |
collection |
Revista do Instituto de Medicina Tropical de São Paulo |
repository.name.fl_str_mv |
Revista do Instituto de Medicina Tropical de São Paulo - Instituto de Medicina Tropical (IMT) |
repository.mail.fl_str_mv |
||revimtsp@usp.br |
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1798951651266002944 |