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1.
Public Health ; 227: 282-290, 2024 02.
Artigo em Inglês | MEDLINE | ID: mdl-38238130

RESUMO

OBJECTIVES: To assess the prevalence, all-cause mortality and determinants of advanced HIV disease (AHD) or severe immunosuppression (SIS) in the rural-urban communities of Southwestern China. STUDY DESIGN: Retrospective cohort study. METHOD: Data on HIV/AIDS cases reported in 2005-20 were collected from Case Report System. A binary logistic regression model assessed the risk factors of AHD/SIS prevalence. Survival curves across rural-urban regions were compared using Kaplan-Meier estimates and log-rank tests. Determinants of all-cause mortality were identified using the Cox proportional hazard model. RESULTS: Among 14,533 newly diagnosed HIV/AIDS patients, 7497 (51.6%) presented with AHD and 2564 (17.6%) with SIS. Compared with urban patients, rural patients had a higher prevalence of AHD (56.7% vs 40.7%) and SIS (20.1% vs 12.4%), all-cause mortality (AHD 12.3 vs 5.6, SIS 16.3 vs 5.5, per 100 person-years). Their 5-year survival probability (AHD 59.5% vs 77.1%; SIS 54.4% vs 76.3%) and mean survival time (AHD 106.5 vs 140.6 months, SIS 95.3 vs 144.2 months, p < 0.0001) were lower. Rural patients had an increased risk of SIS prevalence (adjusted odds ratios 1.45, 95% confidence interval [CI] 1.28-1.64; p < 0.0001) and mortality of the total cohort (adjusted hazard ratios 1.41, 95% CI 1.29-1.55; p < 0.0001), AHD cohort (1.38, 1.24-1.54; p < 0.0001), and SIS cohort (1.49, 1.23-1.81; p < 0.0001). CONCLUSIONS: A high prevalence of AHD/SIS was a severe phenomenon that caused high mortality in rural areas. A regional point-of-care strategy targeting AHD/SIS detection and management is essential for reducing the mortality risk.


Assuntos
Síndrome da Imunodeficiência Adquirida , Infecções por HIV , Humanos , Estudos Retrospectivos , Infecções por HIV/epidemiologia , Infecções por HIV/diagnóstico , Fatores de Risco , Modelos de Riscos Proporcionais
2.
J Clin Med ; 11(17)2022 Aug 25.
Artigo em Inglês | MEDLINE | ID: mdl-36078925

RESUMO

Objective: The primary endpoint of the study was to determine the proportion of patients with HIV RNA < 50 copies/mL at 48 weeks. Design: Phase IV, multicentric, open-label, single-arm clinical trial of participants recruited in 2018−2019 to evaluate the efficacy and safety of tenofovir alafenamide/emtricitabine/elvitegravir-cobicistat (TAF/FTC/EVG-c) as first-line treatment in HIV-1 infected naïve participants with advanced disease. Methods: Adverse events were graded according to the Division of AIDS scale version 2.0. Quantitative variables were recorded as median and interquartile range, and qualitative variables as absolute number and percentage. T-Student or Wilcoxon tests were used to analyze intragroup differences of the continuous variables. Results: Fifty participants were recruited with a baseline median CD4 lymphocyte count of 116 cells/µL and a viral load of 218,938 copies/mL. The proportion of patients with viral load <50 copies/mL at week 48 was 94% in the per-protocol analysis, with a median time of 1.9 months to achieve it. Three adverse events attributed to the study drug caused trial discontinuation. Conclusions: the use of TAF/FTC/EVG-c in patients with advanced HIV disease in our study demonstrated efficacy comparable to data from pivotal clinical trials with a good safety profile.

3.
J Infect ; 84(3): 400-409, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-34973280

RESUMO

OBJECTIVES: High HIV-related mortality is mainly associated with severe immunosuppression (CD4 count < 50 cells/µL) in people living with HIV (PLWH). This study intended to explore the trends in epidemic and early mortality among PLWH with severe immunosuppression for further targeted intervention. METHODS: We extracted the data of treatment-naïve PLWH with severe immunosuppression from China's National Free Antiretroviral Treatment (ART) Program database. Early mortality (within 6 or 12 months after initiating ART) and spatial, temporal, and population distribution were analyzed during 2005-2018. RESULTS: Of 748,066 treatment-naïve PLWH, 105,785 (14.1%) were severely immunosuppressed PLWH aged more than 15-year-old. The proportion of severely immunosuppressed PLWH peaked at 31.4% and then decreased with time, leveling off at approximately 11-12% from 2015 onward. Early mortality rates of these PLWH declined significantly (from 17.0% to 8.1% after 6 months of initiating ART; 20.4% to 10.6% after 12 months; both p values < 0.01) from 2005-2007 to 2016-2018. In the South-central and Southwest, the number of these PLWH was larger than that in the other regions during 2005-2018, and it increased to 4780 (37.1%) and 3370 (26.2%) in 2018. The proportion of PLWH aged 30-44 years among all treatment-naïve severely immunosuppressed PLWH in each region was higher than that of other age groups during 2005-2018. After the proportion decreased during 2005-2007, the proportion of PLWH aged 45-59 years in Southwest and South-central were increased steadily from 11% (69/626) and 16.7% (358/2140) in 2007 to 33.8% (1138/3370) and 34.0% (1626/4780) in 2018, respectively; the proportion of PLWH aged ≥60 years showed an increasing trend during 2005-2018; while changes in the proportion of those age groups were less pronounced in North and Northeast. The proportion of PLWH infected by heterosexual contact was high at 83% (2798/3370) in Southwest, and 75.1% (3588/4780) in South-central in 2018; conversely, proportion of PLWH infected by homosexual contacts was largest in North (57.8% [500/865]) and Northeast (59.9% [561/936]). CONCLUSIONS: The persistent burden of treatment-naïve PLWH with severe immunosuppression remains challenging. Our results provide evidence for policy-makers to allocate resources and establish targeting strategies to identify early infection of PLWH.


Assuntos
Infecções por HIV , Adolescente , Adulto , Idoso , Antirretrovirais/uso terapêutico , Terapia Antirretroviral de Alta Atividade , Contagem de Linfócito CD4 , China/epidemiologia , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Humanos , Pessoa de Meia-Idade
4.
Front Immunol ; 12: 613502, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33968017

RESUMO

In these times of COVID-19 pandemic, concern has been raised about the potential effects of SARS-CoV-2 infection on immunocompromised patients, particularly on those receiving B-cell depleting agents and having therefore a severely depressed humoral response. Convalescent plasma can be a therapeutic option for these patients. Understanding the underlying mechanisms of convalescent plasma is crucial to optimize such therapeutic approach. Here, we describe a COVID-19 patient who was deeply immunosuppressed following rituximab (anti-CD20 monoclonal antibody) and concomitant chemotherapy for chronic lymphoid leukemia. His long-term severe T and B cell lymphopenia allowed to evaluate the treatment effects of convalescent plasma. Therapeutic outcome was monitored at the clinical, biological and radiological level. Moreover, anti-SARS-CoV-2 antibody titers (IgM, IgG and IgA) and neutralizing activity were assessed over time before and after plasma transfusions, alongside to SARS-CoV-2 RNA quantification and virus isolation from the upper respiratory tract. Already after the first cycle of plasma transfusion, the patient experienced rapid improvement of pneumonia, inflammation and blood cell counts, which may be related to the immunomodulatory properties of plasma. Subsequently, the cumulative increase in anti-SARS-CoV-2 neutralizing antibodies due to the three additional plasma transfusions was associated with progressive and finally complete viral clearance, resulting in full clinical recovery. In this case-report, administration of convalescent plasma revealed a stepwise effect with an initial and rapid anti-inflammatory activity followed by the progressive SARS-CoV-2 clearance. These data have potential implications for a more extended use of convalescent plasma and future monoclonal antibodies in the treatment of immunosuppressed COVID-19 patients.


Assuntos
Anticorpos Neutralizantes/sangue , Anticorpos Antivirais/sangue , Tratamento Farmacológico da COVID-19 , COVID-19/imunologia , COVID-19/terapia , Idoso , Anticorpos Neutralizantes/administração & dosagem , Anticorpos Antivirais/administração & dosagem , Antineoplásicos Alquilantes/uso terapêutico , Antineoplásicos Imunológicos/uso terapêutico , Cloridrato de Bendamustina/uso terapêutico , Diabetes Mellitus Tipo 2/complicações , Humanos , Imunização Passiva/métodos , Imunoglobulina A/sangue , Imunoglobulina G/sangue , Imunoglobulina M/sangue , Terapia de Imunossupressão , Leucemia Linfoide/complicações , Leucemia Linfoide/tratamento farmacológico , Masculino , Rituximab/uso terapêutico , SARS-CoV-2/efeitos dos fármacos , SARS-CoV-2/imunologia , Resultado do Tratamento , Soroterapia para COVID-19
5.
J Trop Pediatr ; 66(1): 106-109, 2020 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-31257424

RESUMO

Children with human immunodeficiency virus (HIV) infection are reported to have various malignancies, most common being Non-Hodgkin lymphoma. Despite higher risk of malignancies, brain tumors are infrequently described in these children. We report Primitive Neuroectodermal tumor (PNET) in a young boy with HIV infection. PNET has never been described in association with HIV infection. Though a causative association cannot be established, it does emphasize that with longer survivals on effective antiretroviral therapy, we may see a wide range of malignancies more frequently.


Assuntos
Neoplasias Encefálicas/complicações , Infecções por HIV/complicações , Tumores Neuroectodérmicos Primitivos/complicações , Neoplasias Encefálicas/diagnóstico por imagem , Neoplasias Encefálicas/patologia , Pré-Escolar , Terapia Combinada , Humanos , Imageamento por Ressonância Magnética , Masculino , Tumores Neuroectodérmicos Primitivos/diagnóstico por imagem , Tumores Neuroectodérmicos Primitivos/patologia
7.
Pan Afr Med J ; 26: 14, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28450993

RESUMO

INTRODUCTION: Up to 30% of HIV infected patients who are receiving HAART do not exhibit a marked increase in the CD4+ T cell count. There is still a concern that immune recovery may not be complete once CD4+ T cells have decreased below 200 cells/µl. The objective is to assess CD4+ cell recovery in HIV+ patients with CD4 count below 200 cells/µl) at HAART initiation. METHODS: This was a retrospective cohort study among 110 HIV+ patients with initial CD4 count < 200 cells/µl. Baseline Age, sex, CD4 count and viral load were extracted from the patient's database. After12 months of HAART; CD4 count was done using flow cytometry and viremia by COBAS AmpliPrep/COBAS TaqMan HIV-1 test v 2.0 technology. RESULTS: The mean age of the respondents was 35 years; males being 57% and females were 43%. The mean CD4 count before HAART was 110.18 cells/µl whereas at 12 months of HAART; this was 305.01 cells/µl. Though some patients did not achieve a CD4 count of more than 200 cells/µl or a drop in viral load; there was a significant recovery of CD4+ cells (P value=0.000) and viremia following HAART (P value=0.001). Participants aged 18-30 years were likely to have less than 200 cells/µl CD4 count (46.4%) [OR=4.33; 95%CI: 1.29-14.59; P=0.018] than participants aged above 40 years (16.7%). CONCLUSION: HAART was associated with viremia suppression but many patients failed to achieve a CD4 count >200 cells/µl. HAART before severe immunosuppression is a key factor for immune restoration among HIV+ patients.


Assuntos
Linfócitos T CD4-Positivos/imunologia , Infecções por HIV/tratamento farmacológico , Hospedeiro Imunocomprometido/imunologia , Viremia/tratamento farmacológico , Adolescente , Adulto , Terapia Antirretroviral de Alta Atividade/métodos , Contagem de Linfócito CD4 , Estudos de Coortes , Feminino , Citometria de Fluxo , Infecções por HIV/imunologia , Humanos , Masculino , Estudos Retrospectivos , Ruanda , Carga Viral/efeitos dos fármacos , Adulto Jovem
8.
Germs ; 6(1): 21-8, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-27019829

RESUMO

INTRODUCTION: Studies on the prevalence of and risk factors for tuberculosis (TB) among newly diagnosed human immunodeficiency virus (HIV)-infected children in sub-Saharan Africa are scarce and in Nigeria there is paucity of reported data. We determined the prevalence of and risk factors for pulmonary TB (PTB) in newly diagnosed (treatment-naïve) HIV-1 infected children at the pediatric HIV clinic of the Jos University Teaching Hospital (JUTH) in Nigeria. METHODS: We performed a retrospective analysis of 876 children, aged 2 months - 13 years, diagnosed with HIV-1 infection between July 2005 and December 2012, of which 286 were diagnosed with PTB at presentation after TB screening. The study site was the AIDS Prevention Initiative in Nigeria (APIN)-supported Pediatric HIV clinic at JUTH, Jos. A multivariate forward logistic regression modelling was used to identify risk factors for PTB-HIV co-infection. RESULTS: The prevalence of PTB-HIV co-infection was 32% (286/876). Severe immunosuppression (SI) and World Health Organization (WHO) HIV clinical stage 3/4 were identified as independent risk factors for PTB-HIV co-infection in HIV infected children. The odds of PTB-HIV co-infection was increased two-fold in HIV-infected children with WHO clinical stage 3/4 compared to those with stage 1/2 (adjusted odds ratio (AOR) 1.76 [1.31-2.37], p<0.001) and 1.5-fold in children with SI compared to those without SI (AOR 1.52 [1.12-2.06], p=0.007). CONCLUSION: In our setting, the burden of PTB was high among newly diagnosed HIV-infected children, and late WHO HIV clinical stage and severe immunosuppression were associated with PTB-HIV co-infection. Therefore there is a clear need to improve strategies for early diagnosis of both HIV and PTB to optimize clinical outcomes.

9.
Germs ; 6(4): 139-150, 2016 12.
Artigo em Inglês | MEDLINE | ID: mdl-28053917

RESUMO

BACKGROUND: Mortality data, including the risk factors for mortality in HIV-infected children with pulmonary TB (PTB) being treated for PTB and who are on antiretroviral therapy (ART), are scarce in Nigeria. We determined the mortality rate and risk factors for mortality among such children, at the pediatric HIV clinic of the Jos University Teaching Hospital (JUTH) in Jos, Nigeria. METHODS: We performed a retrospective cohort study on 260 PTB-HIV-1 co-infected children, aged 2 months to 13 years, being treated for PTB and on ART from July 2005 to March 2013. The mortality rate and associated risk factors were determined using multivariate Cox proportional hazards modelling. RESULTS: The mortality rate for the study cohort was 1.4 per 100 child-years of follow-up. Median follow-up time was 5.2 years (IQR, 3.5-6.0 years) with total study time being 1159 child-years. The median age of those who died was lower than that of survivors, 1.9 years (IQR, 0.6-3.6 years) versus 3.8 years (IQR, 1.8-6.0 years), p=0.005). The majority of the deaths occurred in males (13, 81.2%), those <5 years of age (14, 87.4%) and those who had severe immunosuppression (11, 68.8%). Risk factors for death were age (with the risk of dying decreasing by 25% for every 1 year increase in age, adjusted hazard ratio (AHR)=0.75 [0.58-0.98], p=0.032), male gender (AHR=3.80 [1.07-13.5], p=0.039) and severe immunosuppression (AHR=3.35 [1.16-9.66], p=0.025). CONCLUSION: In our clinic setting, mortality among our PTB-HIV co-infected children being treated for PTB and on ART was low. However, those presenting with severe immunosuppression and who are males and very young, should be monitored more closely during follow-up in order to further reduce mortality.

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