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4.
J Infect Dev Ctries ; 15(11): 1761-1765, 2021 11 30.
Artigo em Inglês | MEDLINE | ID: mdl-34898508

RESUMO

INTRODUCTION: Oral clinical manifestations in HBV HCV and HIV patients indicate a deterioration in general health status. The aim of the study was to assess pathomorphologic features of oral mucosa observed in patients with these diseases. METHODOLOGY: The study was conducted in N1 Dental Clinic of YSMU after M. Heratsi. The total number of patients taking part in the research was 120, including HBV (n = 40), HCV (n = 40) and HIV (n = 40). After biopsy and subsequent histological examination of the oral mucosa, statistical analysis was carried out using Excel 2013 and R software. RESULTS: Pathomorphological examination revealed inflammatory infiltrations in all samples collected from HBV, HCV and HIV patients. These changes included microcirculatory disorders in 98.3% of samples: fibrinous-like deposits lining the surface of erosions and ulcers on the oral mucosa (1.67%), fibrosis of the mucous membrane (70%), dystrophy of squamous epithelium (93.3%) and bone sequestration (3.3%). Comparative analysis of pathomorphological characteristics revealed distinct content of infiltrates: lymphoplasmacytic infiltration in patients with HBV and HCV, while HIV patients showed neutrophils infiltration and lack of plasmocytes. CONCLUSIONS: There are common abnormal morphological changes in the oral mucosa typical of all patients with HBV, HCV and HIV, as well as liver diseases specific to each of them. Inflammation in the patients with HIV indicated impairment of the humoral immune system. Understanding the distinct characteristic of inflammation in the oral cavity could be useful for early differential diagnosis and management of patients with HIV, HBV and HCV.


Assuntos
Doenças da Boca/etiologia , Mucosa Bucal/patologia , Adulto , Idoso , Progressão da Doença , Feminino , Infecções por HIV/complicações , Infecções por HIV/imunologia , Hepatite B Crônica/complicações , Hepatite B Crônica/imunologia , Hepatite C Crônica/complicações , Hepatite C Crônica/imunologia , Humanos , Imunidade Humoral , Masculino , Pessoa de Meia-Idade , Doenças da Boca/virologia , Mucosa Bucal/virologia
5.
PLoS One ; 16(8): e0256576, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34432828

RESUMO

BACKGROUND: Non-communicable diseases (NCDs) are increased amongst people living with HIV (PLWH) and are driven by persistent immune activation. The role of socioeconomic status (SES) in immune activation amongst PLWH is unknown, especially in low-income sub-Saharan Africa (SSA), where such impacts may be particularly severe. METHODS: We recruited Malawian adults with CD4<100 cells/ul two weeks after starting ART in the REALITY trial (NCT01825031), as well as volunteers without HIV infection. Clinical assessment, socioeconomic evaluation, blood draw for immune activation markers and carotid femoral pulse wave velocity (cfPWV) were carried out at 2- and 42-weeks post-ART initiation. Socioeconomic risk factors for immune activation and arterial stiffness were assessed using linear regression models. RESULTS: Of 279 PLWH, the median (IQR) age was 36 (31-43) years and 122 (44%) were female. Activated CD8 T-cells increased from 70% amongst those with no education to 88% amongst those with a tertiary education (p = 0.002); and from 71% amongst those earning less than 10 USD/month to 87% amongst those earning between 100-150 USD/month (p = 0.0001). Arterial stiffness was also associated with higher SES (car ownership p = 0.003, television ownership p = 0.012 and electricity access p = 0.029). Conversely, intermediate monocytes were higher amongst those with no education compared to a tertiary education (12.6% versus 7.3%; p = 0.01) and trended towards being higher amongst those earning less than 10 USD/month compared to 100-150 USD/month (10.5% versus 8.0%; p = 0.08). Water kiosk use showed a protective association against T cell activation (p = 0.007), as well as endothelial damage (MIP1ß, sICAM1 and sVCAM1 p = 0.047, 0.026 and 0.031 respectively). CONCLUSIONS: Socioeconomic risk factors for persistent inflammation amongst PLWH in SSA differ depending on the type of inflammatory pathway. Understanding these pathways and their socioeconomic drivers will help identify those at risk and target interventions for NCDs. Future studies assessing drivers of inflammation in HIV should include an SES assessment.


Assuntos
Infecções por HIV/epidemiologia , Infecções por HIV/patologia , Inflamação/epidemiologia , Inflamação/patologia , Classe Social , Adulto , Biomarcadores/metabolismo , Velocidade da Onda de Pulso Carótido-Femoral , Escolaridade , Características da Família , Feminino , Infecções por HIV/imunologia , Infecções por HIV/fisiopatologia , Humanos , Renda , Inflamação/imunologia , Inflamação/fisiopatologia , Malaui/epidemiologia , Masculino , Água
6.
PLoS Negl Trop Dis ; 15(5): e0009376, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-34043617

RESUMO

BACKGROUND: It is essential that clinical trial participants are representative of the population under investigation. Using HIV-associated cryptococcal meningitis (CM) as a case study, we conducted a systematic review of clinical trials to determine how inclusive and representative they were both in terms of the affected population and the involvement of local investigators. METHODS: We searched Medline, EMBASE, Cochrane, Africa-Wide, CINAHL Plus, and Web of Science. Data were extracted for 5 domains: study location and design, screening, participants, researchers, and funders. Data were summarised and compared over 3 time periods: pre-antiretroviral therapy (ART) (pre-2000), early ART (2000 to 2009), and established ART (post-2010) using chi-squared and chi-squared for trend. Comparisons were made with global disease burden estimates and a composite reference derived from observational studies. RESULTS: Thirty-nine trials published between 1990 and 2019 were included. Earlier studies were predominantly conducted in high-income countries (HICs) and recent studies in low- and middle-income countries (LMICs). Most recent studies occurred in high CM incidence countries, but some highly affected countries have not hosted trials. The sex and ART status of participants matched those of the general CM population. Patients with reduced consciousness and those suffering a CM relapse were underrepresented. Authorship had poor representation of women (29% of all authors), particularly as first and final authors. Compared to trials conducted in HICs, trials conducted in LMICs were more likely to include female authors (32% versus 20% p = 0.014) but less likely to have authors resident in (75% versus 100%, p < 0.001) or nationals (61% versus 93%, p < 0.001) of the trial location. CONCLUSIONS: There has been a marked shift in CM trials over the course of the HIV epidemic. Trials are primarily performed in locations and populations that reflect the burden of disease, but severe and relapse cases are underrepresented. Most CM trials now take place in LMICs, but the research is primarily funded and led by individuals and institutions from HICs.


Assuntos
Ensaios Clínicos como Assunto/métodos , Infecções por HIV/etiologia , Equidade em Saúde/estatística & dados numéricos , Meningite Criptocócica/tratamento farmacológico , Pesquisadores/estatística & dados numéricos , Autoria , Feminino , Equidade de Gênero , Infecções por HIV/tratamento farmacológico , Infecções por HIV/imunologia , Humanos , Masculino
7.
Sci Rep ; 11(1): 6798, 2021 03 24.
Artigo em Inglês | MEDLINE | ID: mdl-33762616

RESUMO

Pathogen populations can evolve in response to selective pressure from vaccine-induced immune responses. For HIV, models predict that viral adaptation, either via strain replacement or selection on de novo mutation, may rapidly reduce the effectiveness of an HIV vaccine. We hypothesized that behavioral risk compensation after vaccination may accelerate the transmission of vaccine resistant strains, increasing the rate of viral adaptation and leading to a more rapid decline in vaccine effectiveness. To test our hypothesis, we modeled: (a) the impact of risk compensation on rates of HIV adaptation via strain replacement in response to a partially effective vaccine; and (b) the combined impact of risk compensation and viral adaptation on vaccine-mediated epidemic control. We used an agent-based epidemic model that was calibrated to HIV-1 trends in South Africa, and includes demographics, sexual network structure and behavior, and within-host disease dynamics. Our model predicts that risk compensation can increase the rate of HIV viral adaptation in response to a vaccine. In combination, risk compensation and viral adaptation can, under certain scenarios, reverse initial declines in prevalence due to vaccination, and result in HIV prevalence at 15 years equal to or greater than prevalence without a vaccine.


Assuntos
Vacinas contra a AIDS/administração & dosagem , Infecções por HIV/prevenção & controle , HIV-1/fisiologia , Modelos Teóricos , Vacinas contra a AIDS/imunologia , Análise Custo-Benefício , Farmacorresistência Viral , Infecções por HIV/imunologia , Infecções por HIV/virologia , HIV-1/isolamento & purificação , Humanos , Medição de Risco , Vacinação
8.
Int J Med Sci ; 18(3): 846-851, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33437221

RESUMO

In the last 50 years we have experienced two big pandemics, the HIV pandemic and the pandemic caused by SARS-CoV-2. Both pandemics are caused by RNA viruses and have reached us from animals. These two viruses are different in the transmission mode and in the symptoms they generate. However, they have important similarities: the fear in the population, increase in proinflammatory cytokines that generate intestinal microbiota modifications or NETosis production by polymorphonuclear neutrophils, among others. They have been implicated in the clinical, prognostic and therapeutic attitudes.


Assuntos
COVID-19/epidemiologia , Infecções por HIV/epidemiologia , HIV-1/patogenicidade , Pandemias/história , SARS-CoV-2/patogenicidade , COVID-19/imunologia , COVID-19/psicologia , COVID-19/transmissão , Citocinas/sangue , Citocinas/imunologia , Armadilhas Extracelulares/imunologia , Armadilhas Extracelulares/metabolismo , Medo , Carga Global da Doença/estatística & dados numéricos , Infecções por HIV/imunologia , Infecções por HIV/psicologia , Infecções por HIV/transmissão , HIV-1/imunologia , HIV-1/isolamento & purificação , História do Século XX , História do Século XXI , Interações Hospedeiro-Patógeno/imunologia , Humanos , Mediadores da Inflamação/sangue , Mediadores da Inflamação/imunologia , Mortalidade , Neutrófilos/imunologia , Neutrófilos/metabolismo , Pandemias/estatística & dados numéricos , Prognóstico , SARS-CoV-2/imunologia , SARS-CoV-2/isolamento & purificação
9.
AIDS Care ; 33(3): 285-289, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-31838894

RESUMO

In this work, we use 2011-2013 Texas HIV surveillance data (N=2,175) and apply hierarchical linear and Cox regression modeling to characterize the association of gender and race/ethnicity with rate of immune recovery and determine whether immune recovery contributes to gender and racial/ethnic disparities in AIDS diagnosis and survival. The associations between gender and rate of immune recovery and between race/ethnicity and rate of immune recovery were not statistically significant (p > 0.05). In the multivariate survival analyses, there was no statistically significant association between gender and AIDS diagnosis (Adjusted Hazard Ratio (AHR) = 1.06, p = 0.61, 95%=0.85-1.32) and between race/ethnicity and AIDS diagnosis (Blacks vs Whites: AHR = 1.10, p = 0.24, 95% CI = 0.94-1.30; Hispanics vs Whites: AHR = 1.06, p = 0.46, 95% CI = 0.91-1.24). Similarly, there were no statistically significant associations with death (males vs females: AHR = 0.88, p = 0.73, 95% CI = 0.43-1.81; Blacks vs Whites: AHR = 0.68 p = 0.25, 95% CI = 0.36-1.30; Hispanics vs Whites: AHR = 0.96, p = 0.88, 95% CI = 0.55-1.67). However, the direction of the point estimates were in the reverse direction when compared to the rate of immune recovery or the AIDS diagnosis models. Our findings suggest that differences in rate of immune recovery may better explain disparities in AIDS diagnosis than disparities in survival. Future studies with longer follow-up may potentially generate statistically significant results.


Assuntos
Síndrome da Imunodeficiência Adquirida/etnologia , Síndrome da Imunodeficiência Adquirida/mortalidade , Etnicidade/estatística & dados numéricos , Infecções por HIV/etnologia , Infecções por HIV/mortalidade , Reconstituição Imune , Mortalidade/etnologia , Vigilância em Saúde Pública/métodos , Síndrome da Imunodeficiência Adquirida/imunologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Feminino , Infecções por HIV/imunologia , Disparidades nos Níveis de Saúde , Hispânico ou Latino , Humanos , Masculino , Pessoa de Meia-Idade , Mortalidade/tendências , Estudos Retrospectivos , Fatores Sexuais , Análise de Sobrevida , Texas/epidemiologia , População Branca , Adulto Jovem
11.
J Neurovirol ; 26(6): 899-907, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-32839950

RESUMO

Everyday functioning (EF) impairment is frequent in people living with HIV (PLWH). Our aim was to better explore EF and its association with PLWH cognition, by administering both the IADL scale, the most common functional scale, and a new and ecologic multi-domain (communication and financial skills) tool to measure EF as the University of California San Diego (UCSD) Performance-Based Skills Assessment-Brief Version (UPSA-B). Eighty-five PLWH on cART with very good immunological condition and 23 age- and education-matched healthy controls (HC) were enrolled. PLWH underwent a standardized neuropsychological battery plus IADL, and cognitive impairment was defined according to Frascati criteria. Both groups underwent the UPSA-B. Only 6 subjects (7%) were affected by cognitive impairment (asymptomatic profile). While IADL score was at ceiling for all patients, the UPSA-B total score was significantly worse in PLWH when compared with HC [mean 82.1 (SD 9.3) vs 89.2 (SD 6.2); p < 0.001]. At communication subtest, PLWH group and HC were significantly different (p = 0.002), while no difference emerged at financial skills (p = 0.096). Higher score at UPSA-B was independently associated with better global cognitive performance (composite Z-score) (ß 7.79; p < 0.001). Also considering each single cognitive domain, UPSA-B performance (both total and at subtests) confirmed the association with neurocognitive performance. In conclusion, UPSA-B seems to better discriminate EF impairment than IADL in PLWH, and it was associated with cognitive functions, also in the absence of symptomatic cognitive impairment. Thus, it appears a promising tool in the context of HIV infection to avoid misdiagnosis and to better detect also mild EF.


Assuntos
Atividades Cotidianas/psicologia , Cognição , Disfunção Cognitiva/psicologia , Infecções por HIV/psicologia , HIV-1/patogenicidade , Fármacos Anti-HIV/uso terapêutico , Terapia Antirretroviral de Alta Atividade , Atenção/fisiologia , Linfócitos T CD4-Positivos/imunologia , Linfócitos T CD4-Positivos/virologia , Estudos de Casos e Controles , Disfunção Cognitiva/tratamento farmacológico , Disfunção Cognitiva/imunologia , Disfunção Cognitiva/virologia , Função Executiva/fisiologia , Feminino , Infecções por HIV/tratamento farmacológico , Infecções por HIV/imunologia , Infecções por HIV/virologia , HIV-1/imunologia , Humanos , Masculino , Memória/fisiologia , Pessoa de Meia-Idade , Testes Neuropsicológicos , Escalas de Graduação Psiquiátrica , Desempenho Psicomotor/fisiologia , Fala/fisiologia
12.
BMC Cancer ; 20(1): 798, 2020 Aug 24.
Artigo em Inglês | MEDLINE | ID: mdl-32831073

RESUMO

BACKGROUND: The optimal chemotherapy regimen for treating HIV associated NHL in low resource settings is unknown. We conducted a retrospective study to describe survival rates, treatment response rates and adverse events in patients with HIV associated NHL treated with CHOP and dose adjusted-EPOCH regimens at the Uganda Cancer Institute. METHODS: A retrospective study of patients diagnosed with HIV and lymphoma and treated at the Uganda Cancer Institute from 2016 to 2018 was done. RESULTS: One hundred eight patients treated with CHOP and 12 patients treated with DA-EPOCH were analysed. Patients completing 6 or more cycles of chemotherapy were 51 (47%) in the CHOP group and 8 (67%) in the DA-EPOCH group. One year overall survival (OS) rate in patients treated with CHOP was 54.5% (95% CI, 42.8-64.8) and 80.2% (95% CI, 40.3-94.8) in those treated with DA-EPOCH. Factors associated with favourable survival were BMI 18.5-24.9 kg/m2, (p = 0.03) and completion of 6 or more cycles of chemotherapy, (p < 0.001). The overall response rate was 40% in the CHOP group and 59% in the DA-EPOCH group. Severe adverse events occurred in 19 (18%) patients in the CHOP group and 3 (25%) in the DA-EPOCH group; these were neutropenia (CHOP = 13, 12%; DA-EPOCH = 2, 17%), anaemia (CHOP = 12, 12%; DA-EPOCH = 1, 8%), thrombocytopenia (CHOP = 7, 6%; DA-EPOCH = 0), sepsis (CHOP = 1), treatment related death (DA-EPOCH = 1) and hepatic encephalopathy (CHOP = 1). CONCLUSION: Treatment of HIV associated NHL with curative intent using CHOP and infusional DA-EPOCH is feasible in low resource settings and associated with > 50% 1 year survival.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Infecções por HIV/complicações , Linfoma Difuso de Grandes Células B/tratamento farmacológico , Adulto , Anemia/induzido quimicamente , Anemia/economia , Anemia/epidemiologia , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/economia , Ciclofosfamida/administração & dosagem , Ciclofosfamida/efeitos adversos , Ciclofosfamida/economia , Doxorrubicina/administração & dosagem , Doxorrubicina/efeitos adversos , Doxorrubicina/economia , Esquema de Medicação , Etoposídeo/administração & dosagem , Etoposídeo/efeitos adversos , Etoposídeo/economia , Feminino , Infecções por HIV/imunologia , Encefalopatia Hepática/induzido quimicamente , Encefalopatia Hepática/economia , Encefalopatia Hepática/epidemiologia , Humanos , Infusões Intravenosas/economia , Infusões Intravenosas/métodos , Linfoma Difuso de Grandes Células B/economia , Linfoma Difuso de Grandes Células B/imunologia , Linfoma Difuso de Grandes Células B/mortalidade , Masculino , Pessoa de Meia-Idade , Neutropenia/induzido quimicamente , Neutropenia/economia , Neutropenia/epidemiologia , Prednisona/administração & dosagem , Prednisona/efeitos adversos , Prednisona/economia , Estudos Retrospectivos , Sepse/induzido quimicamente , Sepse/economia , Sepse/epidemiologia , Taxa de Sobrevida , Trombocitopenia/induzido quimicamente , Trombocitopenia/economia , Trombocitopenia/epidemiologia , Fatores de Tempo , Resultado do Tratamento , Uganda/epidemiologia , Vincristina/administração & dosagem , Vincristina/efeitos adversos , Vincristina/economia
13.
J Int AIDS Soc ; 23(7): e25580, 2020 07.
Artigo em Inglês | MEDLINE | ID: mdl-32722897

RESUMO

INTRODUCTION: As integrase inhibitors become available in low- and middle-income countries (LMICs), they offer the potential to expand extremely limited treatment options available to children and adolescents. In LMICs, only small numbers have used raltegravir, primarily as part of third-line regimens. Using data from the IeDEA global consortium, we aimed to describe the characteristics of children on raltegravir-containing regimens and their outcomes. METHODS: We included data from 1994 to 2017 from children (age <18 years), from East and Southern Africa, Asia and South America, who received cART regimens containing raltegravir for ≥90 days. We describe their characteristics at raltegravir start, and their immunological and virological outcomes. RESULTS AND DISCUSSION: In total, 62 children were included, with median age at raltegravir initiation of 14.3 years (IQR 11.2 to 15.8) and median CD4 count of 276 cells/µL (IQR 68 to 494). Among 40 (65%) with drug resistance testing prior to raltegravir, 71% were resistant to at least one protease inhibitor (PI), and 32% had high-level resistance to at least one drug class. Most (n = 50; 81%) received raltegravir as part of third-line cART following PI-based regimens, and were on regimens containing four or more drugs (n = 47, 76%). By database closure, median duration on raltegravir was 2.0 years (IQR 0.8 to 3.0), 1 (1.6%) patient had died, 6 (9.7%) were lost to follow-up and 21 (34%) had discontinued raltegravir. Among 15 patients reporting reasons for stopping raltegravir, six discontinued because it was no longer available. Within one year of starting raltegravir, among 53 patients with VL measures, 40 (75%) had VL < 1000 copies/mL, and among 54 with a reported CD4 count, 45 (83%) and 36 (67%) were ≥350 and ≥500 cells/µL, respectively, with median CD4 count increasing to 517.5 cells/µL (IQR 288 to 810). CONCLUSIONS: Among children in LMICs, the initial use of raltegravir has been primarily for post PI-based cART. We found good virological and immunological outcomes despite frequent prior triple-class failure and high levels of drug resistance. Both access to raltegravir and long-term adherence to regimens with large pill-burdens remain challenging. Policies which promote earlier access to new drugs and simplify daily regimens for children and adolescents in LMICs are needed.


Assuntos
Infecções por HIV/tratamento farmacológico , Inibidores de Integrase de HIV/uso terapêutico , Raltegravir Potássico/uso terapêutico , Adolescente , África Austral , Ásia , Contagem de Linfócito CD4 , Criança , Feminino , Infecções por HIV/economia , Infecções por HIV/imunologia , Infecções por HIV/virologia , Humanos , Masculino , Pobreza , América do Sul , Resultado do Tratamento , Carga Viral/efeitos dos fármacos
14.
AIDS Care ; 32(11): 1451-1456, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-32539474

RESUMO

We aimed to evaluate differences in socio-economic variables in a Ugandan cohort of children with perinatally acquired HIV (PHIVs), HIV exposed uninfected (HEU) and HIV unexposed uninfected (HIV-) children and their associations with markers of inflammation and intestinal integrity. This is a cross-sectional study in 57 PHIV, 59 HEU and 56 HIV - children aged 2-10 years old enrolled in Uganda. Mean age of all participants was 7 years and 55% were girls. Compared to HEU and HIV - children, PHIVs were more likely to have parents that only completed a primary education, live in a household without electricity and live in poverty (p≤0.034). PHIVs living in poverty had higher IL-6 (p=0.006), those with lack of electricity had higher hsCRP, IL6, sTNFRII and d-dimer (p≤0.048) and PHIVs with an unprotected water source had higher IL6 and d-dimer (p≤0.016). After adjusting for demographic and HIV variables, IL-6 and d-dimer remained associated with lack of electricity and having an unprotected water source only in PHIVs (p<0.019). Our findings suggest that addressing economic insecurity may mitigate the persistent low-level inflammation in HIV that lead to many end organ disease. Longitudinal studies are needed to better understand the impact of socioeconomic factors on HIV inflammation and comorbidities.


Assuntos
Microbioma Gastrointestinal , Infecções por HIV , Monócitos , Estudos de Casos e Controles , Criança , Pré-Escolar , Estudos Transversais , Feminino , Infecções por HIV/imunologia , Infecções por HIV/microbiologia , Humanos , Inflamação , Masculino , Gravidez , Complicações Infecciosas na Gravidez , Efeitos Tardios da Exposição Pré-Natal , Fatores Socioeconômicos , Uganda/epidemiologia
15.
Pak J Biol Sci ; 23(4): 542-551, 2020 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-32363840

RESUMO

BACKGROUND AND OBJECTIVE: Combination antiretroviral therapy (cART) has improved the survival of HIV infected patients significantly. However, in some patients, survival is not guaranteed due to several factors that are either individual-based or cART based. This study presents an HIV, AIDS, Death (HAD) model to analyse the survival of patients on cART. MATERIALS AND METHODS: Continuous-time Markov models are fitted based on the states occupied for an HIV, AIDS and Death (HAD) model. These states are based on CD4 cell count. Factors that affect the survival of HIV-infected patients on cART are also analyzed. These, among others, include age, gender, routinely collected viral load, time on treatment, non-adherence and peripheral neuropathy. RESULTS: Patients with higher viral loads than expected are 11.1 times more likely to be at risk of HIV progression to the AIDS state and 1.1 times more likely to be at risk of mortality from a CD4 cell count state above 200 cell/mm3compared to patients with lower viral loads. Non-adherence to treatment increases the risk of transition from CD4 cell count state above 200 cell/mm3 to the AIDS state by 2.2 folds. Patients who were non-adherent to treatment are 3.8 times more likely to transit from the CD4 state above 200 cell/mm3 to death compared to patients who were adherent to treatment. Patients are expected to recover from the AIDS state after one year of treatment. CONCLUSIONS: Recovery from AIDS state by HIV infected patients on cART is likely to occur after one year of cART treatment. However, if the viral load remains higher than expected, this increases risks of immune deterioration even after having achieved normal CD4 cell counts and consequently, mortality risks are increased.


Assuntos
Fármacos Anti-HIV/uso terapêutico , Infecções por HIV/tratamento farmacológico , Modelos Teóricos , Adulto , Fármacos Anti-HIV/efeitos adversos , Contagem de Linfócito CD4 , Progressão da Doença , Feminino , Infecções por HIV/imunologia , Infecções por HIV/mortalidade , Infecções por HIV/virologia , Humanos , Masculino , Cadeias de Markov , Adesão à Medicação , Pessoa de Meia-Idade , Indução de Remissão , Estudos Retrospectivos , Medição de Risco , Fatores de Risco , África do Sul/epidemiologia , Fatores de Tempo , Resultado do Tratamento , Carga Viral
16.
Curr HIV Res ; 18(3): 194-200, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32209045

RESUMO

BACKGROUND: Coinfection of Hepatitis C virus (HCV) with human immunodeficiency virus (HIV) has a higher risk of mortality than HCV or HIV monoinfection. HCV and HIV infections are specified by systemic inflammation, but the inflammation process in HCV/HIV coinfection is much complicated and is not well characterized. OBJECTIVE: The aim of this study was to analyze the expression of TLR-3, TLR-7, IL-10, IFN-1 (IFN-α, IFN-ß), and TNF-α in HIV, HCV and HIV/HCV co-infected patients. METHODS: Forty-five patients including HIV group (n=15), HCV group (n=15), HIV/HCV coinfection group (n=15) and healthy control group (n=15) participated. Peripheral blood mononuclear cells (PBMCs) were obtained. PBMC-RNA, HCV and HIV RNA were extracted from all subjects and cDNA was synthesized. The viral load analyzed by reverse transcription-quantitative PCR (RT-qPCR), and the expression levels of IFN-α, IFN-ß, TLR-3, TLR-7, TNF, and IL-10 mRNA were quantified in PBMCs. RESULTS: The levels of IFN-I, IL-10, and TNF-α were overexpressed in all patients' groups (p<0.05), TLR-7 was upregulated in all groups, but this upregulation was not statistically significant (p>0.05). TLR-3 showed a decrease in all patient groups (p<0.05). The statistical analysis demonstrated that TLR-3 has a negative correlation with HIV load, whereas other genes positively correlated with HIV load. In addition, TLR-3, TNF-α, and IFN-I were negatively correlated with HCV load, whereas TLR-7 and IL-10 s were positively correlated with HCV load. CONCLUSION: Our results showed a significant relationship between the expression level of innate immunity genes and inflammation in HCV, HIV, and HIV/HCV coinfected patients.


Assuntos
Infecções por HIV/imunologia , HIV/imunologia , Hepacivirus/imunologia , Hepatite C Crônica/imunologia , Imunidade Inata , RNA Viral/imunologia , Adulto , Estudos de Casos e Controles , Coinfecção , Feminino , Regulação da Expressão Gênica , HIV/genética , Infecções por HIV/genética , Infecções por HIV/patologia , Infecções por HIV/virologia , Hepacivirus/genética , Hepatite C Crônica/genética , Hepatite C Crônica/patologia , Hepatite C Crônica/virologia , Interações Hospedeiro-Patógeno/genética , Interações Hospedeiro-Patógeno/imunologia , Humanos , Inflamação , Interferon-alfa/genética , Interferon-alfa/imunologia , Interferon beta/genética , Interferon beta/imunologia , Interleucina-10/genética , Interleucina-10/imunologia , Masculino , Pessoa de Meia-Idade , RNA Viral/genética , Receptor 3 Toll-Like/genética , Receptor 3 Toll-Like/imunologia , Receptor 7 Toll-Like/genética , Receptor 7 Toll-Like/imunologia , Fator de Necrose Tumoral alfa/genética , Fator de Necrose Tumoral alfa/imunologia , Carga Viral/genética , Carga Viral/imunologia
17.
United European Gastroenterol J ; 8(4): 396-402, 2020 05.
Artigo em Inglês | MEDLINE | ID: mdl-32213022

RESUMO

INTRODUCTION: Although pancreatic tuberculosis (TB) is traditionally considered to be a rare clinical entity, in recent times, an increase in the number of reports of pancreatic TB has been noted. We conducted a systematic review in order to summarise currently available data on pancreatic TB. METHODS: A comprehensive literature search of Medline, Scopus and ISI Web of Science databases was conducted in order to identify papers reporting cases of pancreatic TB. The eligibility criteria for inclusion in the review required that the studies reported patient(s) affected by pancreatic TB and that individual data on age, sex, clinical presentation and outcome were available. RESULTS: In total, 116 studies reporting data on 166 patients were included in the analysis. The majority of patients were males (62.1%) diagnosed at a mean age of 41.61 ± 13.95 years. Most cases were diagnosed in Asia (50.0%), followed by North America (22.9%), Europe (20.5%), Africa (4.2%) and South America (2.4%). Human immunodeficiency virus (HIV) infection was diagnosed in 25.3% of those affected. Pancreatic TB most frequently presented itself in the form of a pancreatic mass (79.5%) localised mainly in the head (59.0%) and less frequently in the body (18.2%) and tail (13.4%). Extrapancreatic TB involvement most frequently affected the peripancreatic lymph nodes (47.3%). More than half of patients (55.2%) were subjected to laparotomy, while 21.08% underwent endoscopic ultrasound fine-needle aspiration biopsy. The presence of TB was identified most frequently through histological analysis (59.6%), followed by culture (28.9%), staining (27.7%) and, in a smaller number, by polymerase chain reaction (9.6%) and cytology (6.6%). Almost all patients received anti-tubercular pharmacological therapy (98.2%), while 24.1% underwent surgery. Despite treatment, 8.7% of patients died. CONCLUSION: Increased awareness of pancreatic TB is needed, not only in endemic areas but especially in relation to HIV infection and other clinical conditions associated with immunoincompetence.


Assuntos
Infecções por HIV/complicações , Mycobacterium tuberculosis/isolamento & purificação , Pancreatite/diagnóstico , Tuberculose Endócrina/diagnóstico , Tuberculose dos Linfonodos/diagnóstico , Antituberculosos/uso terapêutico , Doenças Endêmicas , Carga Global da Doença , Infecções por HIV/epidemiologia , Infecções por HIV/imunologia , Humanos , Excisão de Linfonodo , Linfonodos/imunologia , Linfonodos/microbiologia , Linfonodos/cirurgia , Mycobacterium tuberculosis/imunologia , Pâncreas/imunologia , Pâncreas/microbiologia , Pâncreas/cirurgia , Pancreatectomia , Pancreatite/epidemiologia , Pancreatite/microbiologia , Pancreatite/terapia , Tuberculose Endócrina/epidemiologia , Tuberculose Endócrina/microbiologia , Tuberculose Endócrina/terapia , Tuberculose dos Linfonodos/epidemiologia , Tuberculose dos Linfonodos/microbiologia , Tuberculose dos Linfonodos/terapia
18.
Clin Exp Dent Res ; 6(1): 75-81, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-32067394

RESUMO

BACKGROUND: Children continue to suffer from the impact of the human immunodeficiency virus-acquired immunodeficiency syndrome (HIV/AIDS) pandemic. In Cape Town, these children receive medical care including antiretroviral therapy from facilities like Tygerberg Hospital's Paediatric Infectious Diseases Clinic. HIV-infected children may experience an increased caries experience when compared with their healthy peers. AIM: The aim of this study was to determine the oral health status of HIV-infected children younger than 12 years receiving antiviral drugs at the Paediatric Infectious Diseases Clinic. DESIGN: A cross-sectional survey was conducted among children aged between 2 and 12 years presenting at this clinic. Caregivers were interviewed to obtain information regarding health seeking behaviour, oral hygiene practices and dietary habits. A single clinician undertook a standardized clinical intraoral examination according to the World Health Organization guidelines, with modifications. RESULTS: Sixty-six children were recruited. A high prevalence of dental caries (78.8%) and an unmet treatment need of 90.4% were recorded among the participants. Most children had never visited the dentist, and those who did had mainly received emergency dental care. CONCLUSION: The high prevalence of severe dental caries in this population highlights the need for oral health awareness and the inclusion of oral health care in the comprehensive care of children with HIV. WHY THIS PAPER IS IMPORTANT TO PAEDIATRIC DENTISTS: The study highlights the importance of collaborating with health professions outside of dentistry. Doctors and nurses are often the first health professionals to come into contact with children with special needs. They should therefore be made aware of the early signs of decay so that these patients can be referred for dental treatment timeously. Holistic management of children with special healthcare needs is essential to improve their overall well-being.


Assuntos
Fármacos Anti-HIV/uso terapêutico , Assistência Integral à Saúde/organização & administração , Assistência Odontológica/organização & administração , Cárie Dentária/epidemiologia , Infecções por HIV/complicações , Criança , Pré-Escolar , Assistência Integral à Saúde/métodos , Estudos Transversais , Índice CPO , Cárie Dentária/diagnóstico , Cárie Dentária/imunologia , Cárie Dentária/prevenção & controle , Feminino , Infecções por HIV/tratamento farmacológico , Infecções por HIV/imunologia , Necessidades e Demandas de Serviços de Saúde , Hospitais Urbanos/organização & administração , Humanos , Masculino , Saúde Bucal , Ambulatório Hospitalar/organização & administração , Prevalência , Encaminhamento e Consulta/organização & administração , Índice de Gravidade de Doença , África do Sul/epidemiologia
19.
J Virol ; 94(9)2020 04 16.
Artigo em Inglês | MEDLINE | ID: mdl-32051267

RESUMO

Clinical trials investigating histone deacetylase inhibitors (HDACi) to reverse HIV-1 latency aim to expose reservoirs in antiretroviral (ARV)-treated individuals to clearance by immune effectors, yet have not driven measurable reductions in the frequencies of infected cells. We therefore investigated the effects of the class I-selective HDACi nanatinostat and romidepsin on various blocks to latency reversal and elimination, including viral splicing, antigen presentation, and CD8+ T cell function. In ex vivo CD4+ T cells from ARV-suppressed individuals, both HDACi significantly induced viral transcription, but not splicing nor supernatant HIV-1 RNA. In an HIV-1 latency model using autologous CD8+ T cell clones as biosensors of antigen presentation, neither HDACi-treated CD4+ T cell condition induced clone degranulation. Both HDACi also impaired the function of primary CD8+ T cells in viral inhibition assays, with nanatinostat causing less impairment. These findings suggest that spliced or cell-free HIV-1 RNAs are more indicative of antigen expression than unspliced HIV-RNAs and may help to explain the limited abilities of HDACi to generate CD8+ T cell targets in vivoIMPORTANCE Antiretroviral (ARV) drug regimens suppress HIV-1 replication but are unable to cure infection. This leaves people living with HIV-1 burdened by a lifelong commitment to expensive daily medication. Furthermore, it has become clear that ARV therapy does not fully restore health, leaving individuals at elevated risk for cardiovascular disease, certain types of cancers, and neurocognitive disorders, as well as leaving them exposed to stigma. Efforts are therefore under way to develop therapies capable of curing infection. A key focus of these efforts has been on a class of drugs called histone deacetylase inhibitors (HDACi), which have the potential of exposing hidden reservoirs of HIV-1 to elimination by the immune system. Unfortunately, clinical trial results with HDACi have thus far been disappointing. In the current study, we integrate a number of experimental approaches to build a model that provides insights into the limited activity of HDACi in clinical trials and offers direction for future approaches.


Assuntos
Inibidores de Histona Desacetilases/farmacologia , Latência Viral/efeitos dos fármacos , Adulto , Linfócitos T CD4-Positivos/efeitos dos fármacos , Linfócitos T CD4-Positivos/imunologia , Linfócitos T CD8-Positivos/efeitos dos fármacos , Linfócitos T CD8-Positivos/imunologia , Depsipeptídeos/farmacologia , Feminino , Infecções por HIV/imunologia , Soropositividade para HIV/tratamento farmacológico , HIV-1/metabolismo , HIV-1/patogenicidade , HIV-1/fisiologia , Histona Desacetilases/metabolismo , Humanos , Masculino , Pessoa de Meia-Idade , Cultura Primária de Células , Latência Viral/fisiologia , Replicação Viral/efeitos dos fármacos
20.
HIV Med ; 21(2): 128-134, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-31702111

RESUMO

OBJECTIVES: The aim of this study was to evaluate adherence to the recommendations of the Spanish guidelines for the initial assessment of patients with HIV infection in the multicentre Cohort of the Spanish HIV/AIDS Network (CoRIS) during the years 2004-2017. METHODS: We calculated the percentage of patients who had each of 11 clinical and analytical recommended examinations performed in their initial evaluation. We evaluated the factors associated with not performing each examination with multivariable logistic regression models. RESULTS: We included 13 612 patients in the study. In the initial assessment, CD4 count and viral load were determined in more than 98.0% of the patients. Serologies for hepatitis A, B and C and syphilis were determined in 55.8%, 66.4%, 89.8% and 81.7% of the patients, respectively. Total cholesterol and creatinine were determined in 78.7% and 78.9% of the patients, respectively. The lowest proportions of examinations were observed for blood pressure, smoking status and latent tuberculosis screening, which were performed in 43.2%, 50.6% and 53.9% of the patients, respectively. Injecting drug users and heterosexual patients (compared to men who have sex with men) and patients with a lower educational level had a higher risk of having an incomplete initial assessment for a substantial number of examinations. Latent tuberculosis screening was less likely in patients with CD4 counts < 200 cells/µL. CONCLUSIONS: The initial assessment of HIV-infected patients is suboptimal for the evaluation of cardiovascular risk, smoking status, screening of syphilis and viral hepatitis, and diagnosis of latent tuberculosis: adherence to the guidelines was low for these examinations.


Assuntos
Infecções por HIV/imunologia , Hepatite A/diagnóstico , Hepatite B/diagnóstico , Hepatite C/diagnóstico , Sífilis/diagnóstico , Adulto , Contagem de Linfócito CD4 , Feminino , Fidelidade a Diretrizes , Infecções por HIV/virologia , Hepatite A/imunologia , Hepatite B/imunologia , Hepatite C/imunologia , Humanos , Modelos Logísticos , Masculino , Guias de Prática Clínica como Assunto , Sorologia , Espanha , Sífilis/imunologia , Carga Viral
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