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1.
PLoS One ; 16(5): e0251861, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33999968

RESUMO

Visceral Leishmaniasis and HIV-AIDS coinfection (VL/HIV) is considered a life-threatening pathology when undiagnosed and untreated, due to the immunosuppression caused by both diseases. Serological tests largely used for the VL diagnosis include the direct agglutination test (DAT), ELISA and immunochromatographic (ICT) assays. For VL diagnosis in HIV infections, different studies have shown that the use of the DAT assay facilitates the VL diagnosis in co-infected patients, since the performance of the most widely used ELISA and ICT tests, based on the recombinant protein rK39, are much less efficient in HIV co-infections. In this scenario, alternative recombinant antigens may help the development of new serological diagnostic methods which may improve the VL diagnosis for the co-infection cases. This work aimed to evaluate the use of the recombinant Lci2 antigen, related to, but antigenically more diverse than rK39, for VL diagnosis in co-infected sera through ELISA assays. A direct comparison between recombinant Lci2 and rK39 was thus carried out. The two proteins were first tested using indirect ELISA with sera from VL afflicted individuals and healthy controls, with similar performances. They were then tested with two different sets of VL/HIV co-infected cases and a significant drop in performance, for one of these groups, was observed for rK39 (32% sensitivity), but not for Lci2 (98% sensitivity). In fact, an almost perfect agreement (Kappa: 0.93) between the Lci2 ELISA and DAT was observed for the coinfected VL/HIV patients. Lci2 then has the potential to be used as a new tool for the VL diagnosis of VL/HIV co-infections.


Assuntos
Anticorpos Antiprotozoários/isolamento & purificação , Infecções por HIV/genética , Leishmania infantum/isolamento & purificação , Leishmaniose Visceral/diagnóstico , Proteínas Recombinantes/isolamento & purificação , Testes de Aglutinação , Anticorpos Antiprotozoários/imunologia , Antígenos de Protozoários/imunologia , Coinfecção/diagnóstico , Coinfecção/genética , Coinfecção/parasitologia , Ensaio de Imunoadsorção Enzimática , HIV/patogenicidade , Infecções por HIV/complicações , Infecções por HIV/parasitologia , Infecções por HIV/virologia , Humanos , Leishmania infantum/genética , Leishmania infantum/patogenicidade , Leishmaniose Visceral/genética , Leishmaniose Visceral/parasitologia , Leishmaniose Visceral/virologia , Proteínas de Protozoários/imunologia , Proteínas Recombinantes/genética
2.
J Epidemiol Glob Health ; 8(1-2): 77-81, 2018 12.
Artigo em Inglês | MEDLINE | ID: mdl-30859792

RESUMO

It is important to assess whether regional progress toward achieving the millennium development goals (MDGs) has contributed to human development and whether this has had an effect on the triple burden of disease in the continent. This analysis investigates the association between the human development index (HDI) and co-occurrence of HIV/AIDS, tuberculosis (TB), and malaria as measured by MDG 6 indicators in 35 selected sub-Saharan African countries from 2000 to 2014. The analysis used secondary data from the United Nations Development Programme data repository for HDI and disease data from WHO Global Health observatory data repository. Generalized Linear Regression Models were used to analyze relationships between HDI and MDG 6 indicators. HDI was observed to improve from 2001 to 2014, and this varied across the selected sub-regions. There was a significant positive relationship between HDI and HIV prevalence in East Africa (ß = 0.048 [95% CI: 0.040-0.056], p < 0.001) and Southern Africa (ß = 0.032 [95% CI: 0.002-0.062], p = 0.034). A significant positive relationship was observed with TB incidence (ß = 0.009 [95% CI: 0.003-0.015], p = 0.002) and a significant negative relationship was observed with malaria incidence (ß = -0.020 (95% CI: -0.029 to -0.010, p < 0.001) in East Africa. Observed improvements in HDI from the year 2000 to 2014 did not translate into commensurate progress in MDG 6 goals.


Assuntos
Controle de Doenças Transmissíveis/organização & administração , Saúde Global , Saúde Pública/normas , Indicadores de Qualidade em Assistência à Saúde , Desenvolvimento Sustentável , África Subsaariana/epidemiologia , Bases de Dados Factuais , Países em Desenvolvimento , Feminino , Infecções por HIV/epidemiologia , Infecções por HIV/parasitologia , Humanos , Incidência , Malária/epidemiologia , Malária/prevenção & controle , Masculino , Análise Multivariada , Saúde Pública/tendências , Análise de Regressão , Estudos Retrospectivos , Medição de Risco , Tuberculose/epidemiologia , Tuberculose/parasitologia
3.
J Int Assoc Provid AIDS Care ; 12(2): 122-7, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-22745183

RESUMO

OBJECTIVE: This was a cross-sectional study intended to assess the prevalence and management of helminthiasis (HL) among underfives living with HIV/AIDS (ULHA). METHODOLOGY: Clinical histories of ULHA were scrutinized for HIV/AIDS status, antiretroviral therapy (ART), HL prevalence, and their management. RESULTS: About 364 ULHA were studied, 213 (58.5%) were girls and 151 (41.5%) were boys. Of the 364 ULHA, 171 (47.5%) had HL and 64.3% were treated with albendazole (ABZ). Trichuriasis was ascribed to 23.6% of HL. Majority (72.5%) of ULHA had a CD4 count below 200 cells/mm³. Direct association was observed between CD4 counts and HL. About 55% ULHA were on lamivudine (3TC)-stavudine (d4T)-nevirapine (NVP; LSN) combination therapy. The ABZ-LSN combination was frequently used for HIV/AIDS and HL management. CONCLUSION: High prevalence of HL and vivid correlation between HIV status and HL were observed. The LSN-ABZ combination was frequently employed for management of HIV/AIDS and HL. We recommended prompt diagnosis of HL to avoid acceleration of HIV infection to AIDS.


Assuntos
Infecções por HIV/complicações , Helmintíase/epidemiologia , Helmintíase/terapia , Fatores Etários , Anti-Helmínticos/uso terapêutico , Fármacos Anti-HIV/uso terapêutico , Pré-Escolar , Estudos Transversais , Feminino , Infecções por HIV/parasitologia , Infecções por HIV/terapia , Helmintíase/diagnóstico , Humanos , Lactente , Masculino , Prevalência , Estudos Retrospectivos , Tanzânia
4.
AIDS Care ; 24(7): 929-35, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22273077

RESUMO

Studies on HIV/AIDS treatment adherence have been carried out in a limited number of geographic settings, but few studies have explored it in people of higher socioeconomic status in Latin America. This qualitative study explored and compared determinants of adherence behaviors among 52 HIV-positive Colombian women in medium and high socioeconomic positions (SPs). Findings indicated that the two SP groups reported high adherence behaviors related to taking medication, following a diet, and executing lifestyle changes in line with healthcare providers' recommendations. Nevertheless, differences were observed between the two groups. While women with a medium SP disclosed their diagnosis, were empowered, and had acceptable access to economic resources that resulted in favorable adherence, their better off counterparts tended to hide their status and made a conscious effort to keep their adherence behaviors in secret due to HIV-related stigma. More studies on adherence of people living with HIV/AIDS from high SPs should be conducted to better understand how psychosocial support can be provided and to advance the knowledge of how and why adherence practices in these groups are undertaken.


Assuntos
Infecções por HIV/tratamento farmacológico , Adesão à Medicação/estatística & dados numéricos , Estigma Social , Revelação da Verdade , Síndrome da Imunodeficiência Adquirida/tratamento farmacológico , Adulto , Colômbia/epidemiologia , Feminino , Infecções por HIV/epidemiologia , Infecções por HIV/parasitologia , Pessoal de Saúde , Humanos , Adesão à Medicação/psicologia , Classe Social , Inquéritos e Questionários
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