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1.
J Antimicrob Chemother ; 77(3): 747-752, 2022 02 23.
Artigo em Inglês | MEDLINE | ID: mdl-34849955

RESUMO

BACKGROUND: Short-cycle therapy (SCT) is the administration of ART for 4 or 5 consecutive days a week, followed by 3 or 2 days off therapy. Its benefits include improving patient satisfaction and reducing ART toxicity and costs. METHODS: In this observational study we included HIV-infected adults with a three-drug ART containing rilpivirine, a history of long-term virological suppression and no evidence of resistance to previous drug regimens. Patients switched to a SCT of 4 days on/3 days off and were followed for 48 weeks with regular check-ups. The primary outcome was virological suppression; secondary outcomes were changes in CD4+ cells and rilpivirine plasma concentration, the occurrence of adverse events and resistance in the case of failure, and patient satisfaction. RESULTS: At week 48 no virological failure was observed, with a virological suppression rate of 30/30 (100%). Three patients switched back to continuous therapy for other reasons, with an overall success rate of SCT of 30/33 (90.9%, 95% CI = 81.24% to 100%). The CD4+ mean value increased by +64 cells/mm3 (95% CI = -59 to +187 cells/mm3; P = 0.052). No adverse events were observed and the mean total score in the satisfaction questionnaire was 57.7/60 (96.22%). Rilpivirine plasma concentration was below the efficacy threshold in 71.3% of the samples, suggesting that the patients' characteristics, more than the drug's pharmacokinetics, played a role in maintaining virological suppression. CONCLUSIONS: SCT with rilpivirine-containing regimens could be an effective alternative to continuous therapy in selected HIV-infected patients with previous long-term virological suppression.


Assuntos
Infecções por HIV , HIV-1 , Infecções por HIV/tratamento farmacológico , Humanos , Rilpivirina/efeitos adversos
2.
Lancet ; 401(10373): 267-268, 2023 01 28.
Artigo em Inglês | MEDLINE | ID: mdl-36709070
4.
New Microbiol ; 41(4): 262-267, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-30311623

RESUMO

Combination abacavir/lamivudine/dolutegravir (ABC/3TC/DTG) is approved as a first-line treatment for antiretroviral naïve patients. This report investigated the immunovirological outcome and total HIV-1 DNA decay in a small cohort of naïve HIV-1-positive patients treated with this regimen. In the presence of viral suppression and increased lymphocyte T CD4+ cells, the quantitative analysis of total HIV-1 DNA content revealed a significant decay after 12 months of treatment. Subsequently, we deintensificated the treatment of these patients from (ABC/3TC/DTG) to lamivudine plus dolutegravir (3TC/DTG) after 12 months of virological suppression, as a strategy of "induction-maintenance" therapy. The analysis of HIV-1 RNA viral load, total HIV-1 DNA, CD4+ T lymphocyte count and CD8+ HLA-DR+ T lymphocyte percentage after a mean 3.5 months of therapy deintensification showed no significant difference with respect to data detected after 12 months of ABC/3TC/DTG treatment in the presence of continuous viral suppression. These results indicate that the deintensification of highly active antiretroviral therapy (HAART) from ABC/ 3TC/DTG to 3TC/DTG effectively controls HIV-1 replication and in the early period does not induce any significant variations of total HIV-1 DNA. This suggests that HAART deintensification might be proposed as a therapeutic evolution in the treatment of HIV-1 infection.


Assuntos
Fármacos Anti-HIV , Infecções por HIV , HIV-1 , Adulto , Idoso , Fármacos Anti-HIV/administração & dosagem , Terapia Antirretroviral de Alta Atividade , Contagem de Linfócito CD4 , Estudos de Coortes , DNA Viral/metabolismo , Didesoxinucleosídeos/administração & dosagem , Quimioterapia Combinada , Feminino , Infecções por HIV/tratamento farmacológico , HIV-1/genética , Compostos Heterocíclicos com 3 Anéis/administração & dosagem , Humanos , Lamivudina/administração & dosagem , Masculino , Pessoa de Meia-Idade , Oxazinas , Piperazinas , Piridonas , Carga Viral , Adulto Jovem
6.
Lancet ; 395(10240): 1833, 2020 06 13.
Artigo em Inglês | MEDLINE | ID: mdl-32534641
7.
Lancet ; 393(10181): 1594, 2019 04 20.
Artigo em Inglês | MEDLINE | ID: mdl-31007197
9.
J Gastroenterol Hepatol ; 29(5): 912-9, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-24863185

RESUMO

Although a rather benign course of chronic hepatitis B virus (HBV) infection during childhood has been described, 3-5% and 0.01-0.03% of chronic carriers develop cirrhosis or hepatocellular carcinoma before adulthood. Considering the whole lifetime, the risk of hepatocellular carcinoma rises to 9-24% and the incidence of cirrhosis to 2-3% per year. The aim of this article is to review the current knowledge regarding the natural history and treatment of chronic hepatitis B in children and to focus on critical aspects and unresolved questions in the management of childhood HBV infection. A literature search was carried out on MEDLINE, EMBASE, and Web of Science for articles published in English in peer-reviewed journals from January 1980 to February 2013. The search terms used included "Hepatitis B virus infection," "children," "HBV," "interferon," "lamivudine," "adefovir," "entecavir," and "tenofovir." Articles resulting from these searches and relevant references cited in the articles retrieved were reviewed. The current goals of therapy are to suppress viral replication, reduce liver inflammation, and reverse liver fibrosis. Therapeutic options for children are currently limited, and the risk for viral resistance to current and future therapies is a particular concern. Based on the data available at this time, it is the consensus of the panel that it is not appropriate to treat children in the immune-tolerant phase or in the inactive carrier state. For children in the immune-active or reactivation phases, liver histology can help guide treatment decisions. Outside of clinical trials, interferon is the agent of choice in most cases; currently, available nucleoside analogs are secondary therapies.


Assuntos
Hepatite B Crônica/tratamento farmacológico , Adenina/análogos & derivados , Adenina/uso terapêutico , Antivirais/uso terapêutico , Carcinoma Hepatocelular/epidemiologia , Carcinoma Hepatocelular/etiologia , Portador Sadio , Criança , Bases de Dados Bibliográficas , Guanina/análogos & derivados , Guanina/uso terapêutico , Hepatite B Crônica/complicações , Hepatite B Crônica/epidemiologia , Hepatite B Crônica/imunologia , Humanos , Tolerância Imunológica , Incidência , Interferons/uso terapêutico , Lamivudina/uso terapêutico , Cirrose Hepática/epidemiologia , Cirrose Hepática/etiologia , Neoplasias Hepáticas/epidemiologia , Neoplasias Hepáticas/etiologia , Nucleosídeos/uso terapêutico , Organofosfonatos/uso terapêutico , Risco , Tenofovir
10.
AIDS Res Hum Retroviruses ; 40(2): 69-72, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37551977

RESUMO

The use of long-acting antiretroviral regimens will not be suitable for all people living with HIV for various reasons (previous virological failure with drugs of the same class, side effects, logistic difficulties, and costs). We think that short-cycle therapies could represent a feasible and valuable option for antiretroviral treatment optimization in selected individuals. So here we review clinical evidence about efficacy of short-cycle therapy in suppressed HIV-infected patients.


Assuntos
Fármacos Anti-HIV , Infecções por HIV , HIV-1 , Humanos , Fármacos Anti-HIV/efeitos adversos , Infecções por HIV/tratamento farmacológico , Antirretrovirais/uso terapêutico
11.
PLoS One ; 19(3): e0290917, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38437229

RESUMO

Hepatitis B virus (HBV) infection is endemic in Ghana and chronic kidney disease patients on haemodialysis are a high-risk group for HBV infection. We determined the prevalence of overt and occult HBV infection among haemodialysis patients at the Korle Bu Teaching Hospital in Ghana. 104 consenting End Stage Renal Disease patients on long-term haemodialysis were recruited for the study and their socio-demographic, clinical and laboratory information were obtained using structured questionnaire. All the participants were tested for the hepatitis B surface antigen (HBsAg). The HBsAg-negative participants were re-tested for hepatitis B surface antibody (HBsAb), hepatitis B core antibody (HBcAb) and HBV DNA using chemiluminescence and Roche COBAS Ampli-Prep/TaqMan analyser and real-time polymerase chain reaction. Eight (7.7%) of the total participants were positive for HBsAg. Among the 96 HBsAg-negative participants, 12.5% (12) were HBcAb-positive, 7.3% (7) had detectable HBV DNA (mean = 98.7±53.5 IU/mL) and 40.6% (39) were positive for HBsAb. Five out of the 7 HBV DNA-positive participants were males and only one participant was negative for HBcAb. Seventy-three out of the 96 HBsAg-negative participants were vaccinated and 37 of these vaccinated individuals had significant HBsAb titres (mean = 423.21± 380.72 IU/mL). Our data demonstrated that the prevalence of overt and occult HBV infection among the haemodialysis (HD) patients was 7.7% and 7.3%, respectively, and only 50.7% of those who showed proof of vaccination were protected from HBV infection.


Assuntos
Hepatite B Crônica , Hepatite B , Insuficiência Renal Crônica , Masculino , Humanos , Feminino , Vírus da Hepatite B/genética , Centros de Atenção Terciária , Gana/epidemiologia , Antígenos de Superfície da Hepatite B , DNA Viral , Hepatite B/epidemiologia , Anticorpos Anti-Hepatite B , Diálise Renal , Hospitais de Ensino
12.
J Glob Health ; 14: 04054, 2024 02 16.
Artigo em Inglês | MEDLINE | ID: mdl-38386716

RESUMO

Background: In this priority-setting exercise, we sought to identify leading research priorities needed for strengthening future pandemic preparedness and response across countries. Methods: The International Society of Global Health (ISoGH) used the Child Health and Nutrition Research Initiative (CHNRI) method to identify research priorities for future pandemic preparedness. Eighty experts in global health, translational and clinical research identified 163 research ideas, of which 42 experts then scored based on five pre-defined criteria. We calculated intermediate criterion-specific scores and overall research priority scores from the mean of individual scores for each research idea. We used a bootstrap (n = 1000) to compute the 95% confidence intervals. Results: Key priorities included strengthening health systems, rapid vaccine and treatment production, improving international cooperation, and enhancing surveillance efficiency. Other priorities included learning from the coronavirus disease 2019 (COVID-19) pandemic, managing supply chains, identifying planning gaps, and promoting equitable interventions. We compared this CHNRI-based outcome with the 14 research priorities generated and ranked by ChatGPT, encountering both striking similarities and clear differences. Conclusions: Priority setting processes based on human crowdsourcing - such as the CHNRI method - and the output provided by ChatGPT are both valuable, as they complement and strengthen each other. The priorities identified by ChatGPT were more grounded in theory, while those identified by CHNRI were guided by recent practical experiences. Addressing these priorities, along with improvements in health planning, equitable community-based interventions, and the capacity of primary health care, is vital for better pandemic preparedness and response in many settings.


Assuntos
COVID-19 , Preparação para Pandemia , Criança , Humanos , Consenso , Projetos de Pesquisa , COVID-19/epidemiologia , COVID-19/prevenção & controle , Saúde da Criança
16.
Lancet Gastroenterol Hepatol ; 8(11): 1035-1045, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37837969

RESUMO

Acute liver failure is a rare condition involving the rapid development, progression, and worsening of liver dysfunction, characterised by coagulopathy and encephalopathy, and has a high mortality unless liver transplantation is performed. Population-based studies are scarce, and most published data are from high-income countries, where the main cause of acute liver failure is paracetamol overdose. This Review provides an overview of the scanty literature on acute liver failure in low-income and middle-income countries, where patients are often admitted to primary care hospitals and viral hepatitis (especially hepatitis E), tropical infections (eg, dengue), traditional medicines, and drugs (especially anti-tuberculosis drugs) have an important role. We discuss incidence, cause, occurrence in children and pregnant women, prognostic factors and scores, treatment, and mortality. To conclude, we advocate for international collaboration, the establishment of central registries for the condition, and better diagnostics.


Assuntos
Falência Hepática Aguda , Transplante de Fígado , Criança , Humanos , Feminino , Gravidez , Acetaminofen/efeitos adversos , Países em Desenvolvimento , Falência Hepática Aguda/diagnóstico , Falência Hepática Aguda/epidemiologia , Falência Hepática Aguda/etiologia , Transplante de Fígado/efeitos adversos , Pobreza
17.
J Chemother ; 35(7): 623-626, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37102326

RESUMO

Immunocompromised patients with leukemia/lymphoma often have a suboptimal response to vaccination against SARS-CoV-2 and, if infected, can develop a persistent infection.SARS-CoV-2 PCR was performed on nasopharingeal swabs and serum IgG anti-SARS-CoV-2 trimeric spike glycoprotein antibodies were measured during persistence of infection. Treatment with a combination of nirmatrelvir/ritonavir plus sotrovimab led to viral clearance in three patients with leukaemia or lymphoma with persistent SARS-CoV-2 and negative SARS-CoV-2 antibody tests. No standardized treatments for persistent infection with SARS-CoV-2 infection are available. We have reported the viral clearance in two immunocompromised patients treated with antiviral drug nirmatrelvir/ritonavir and monoclonal antibody sotrovimab. We suggest that this strategy should be tested in clinical trials to find the right strategy for a clinical problem with public health implications to SARS-CoV-2 evolution and immune escape in these sub-set of patients.


Assuntos
COVID-19 , Linfoma , Humanos , SARS-CoV-2 , Infecção Persistente , Ritonavir/uso terapêutico , Tratamento Farmacológico da COVID-19 , Antivirais/uso terapêutico , Hospedeiro Imunocomprometido
18.
Artigo em Inglês | MEDLINE | ID: mdl-37776179

RESUMO

The availability of long-acting cabotegravir and rilpivirine injection combination requires some changes in service delivery of outpatient HIV clinics; it is therefore important for clinicians to know the potential number of people living with HIV (PLWH) who are interested in a long-acting antiretroviral treatment. We aimed to determine in an outpatient clinic the number of PLWH, on dolutegravir/rilpivirine, accepting a switch to an injectable long-acting antiretroviral treatment, and the reasons underlying this choice. In our single-center study, in this subset of HIV-infected patients, the main cause for refusal of a long-acting injectable regimen was the need for the administration to be done in hospital, as required in Italy, suggesting that current regulations about this aspect must be changed.

19.
Health Sci Rep ; 6(2): e1101, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36789398

RESUMO

Background and Aims: Liver fibrosis leading to chronic liver disease (CLD) is a major cause of morbidity, mortality and health-care expenditure worldwide. The "gold standard" for diagnosis and staging of liver fibrosis is histological analysis of liver tissue obtained by liver biopsy, an invasive procedure. Therefore, there is the need to identify noninvasive and inexpensive markers for diagnosis and staging of liver fibrosis. This study aimed at evaluating the correlation of hyaluronic acid (HA) and 25-hydroxyvitamin D (25-OH vitamin D) serum levels as markers of fibrosis with histologically staged and graded liver biopsies obtained from CLD patients. Methods: This was a case-control study involving 40 CLD patients requiring liver biopsies and 40 controls. Liver biopsies were staged to determine the degree of fibrosis. Serum levels of 25-OH vitamin D and HA were determined using ELISA. Statistical analyses were performed to determine differences in HA and 25-OH vitamin D levels between controls and patients as well as to correlate the biomarkers with the stages of fibrosis. Results: CLD patients showed significant (p < 0.001) increase in the levels of AST, ALT, GGT, compared to the controls. Patients also had significantly (p < 0.001) lower serum 25-OH vitamin D and higher HA (p < 0.001) levels compared to the controls. Additionally, 25-OH vitamin D levels of the CLD patients were significantly different across the stages of liver fibrosis likewise serum HA levels. Furthermore, 25-OH vitamin D levels inversely correlated with the severity of liver fibrosis. A significant negative correlation (r = -0.33, p < 0.05) between CLD patients' HA and 25-OH vitamin D were found. Conclusion: CLD patients had significantly reduced serum 25-OH vitamin D and higher HA. Both markers correlated with the degree of liver fibrosis. These findings have major clinical translatable implication in the use of vitamin D supplementation in the management of CLD in Ghana.

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