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1.
Sci Rep ; 11(1): 16616, 2021 08 16.
Artigo em Inglês | MEDLINE | ID: mdl-34400736

RESUMO

We aimed to evaluate factors associated with changes in skeletal muscle mass in hepatitis C virus (HCV)-infected patients after treatment with direct-acting antivirals (DAAs). Consecutive HCV-infected patients after treatment with DAA were recruited into the study. Patients who achieved sustained virological response (SVR); and had complete clinical information, preserved serum samples at baseline and SVR48, and skeletal muscle mass evaluations based on the psoas muscle mass index (PMI) on computed tomography at baseline and ≥ 12 months were included. Altogether, 70.7% of patients (41/58) showed increased PMI after DAA therapy, and mean relative PMI was significantly higher after DAA therapy than at baseline. There were no significant associations between baseline clinical factors routinely examined in clinical practice and increased PMI. Among factors reported to be associated with skeletal muscle loss in patients with chronic liver disease, serum zinc levels and total and free carnitine levels increased significantly after DAA therapy and only changes in serum free carnitine levels were significantly associated with an increased PMI (r = 0305, P = 0.020). In conclusion, increased skeletal muscle mass after successful HCV eradication by DAAs was significantly associated with increased serum-free carnitine levels. L-carnitine supplementation may be beneficial in patients with low skeletal muscle mass after DAA.


Assuntos
Antivirais/uso terapêutico , Carnitina/sangue , Hepatite C Crônica/tratamento farmacológico , Músculos Psoas/patologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Aminoácidos de Cadeia Ramificada/sangue , Carnitina/farmacologia , Carnitina/uso terapêutico , Feminino , Hepatite C Crônica/sangue , Hepatite C Crônica/patologia , Humanos , Fator de Crescimento Insulin-Like I/análise , Masculino , Pessoa de Meia-Idade , Tamanho do Órgão , Resposta Viral Sustentada , Vitamina D/sangue , Zinco/sangue
2.
Oxid Med Cell Longev ; 2020: 7087921, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32566096

RESUMO

The widespread adaptation of a new generation of direct-acting antiviral agents (DAAs) unveils a superlative effect in the eradication of the hepatitis C virus (HCV). However, this therapy has been reported to exhibit vigorous side effects that pose a risk in fleet recovery. This study was conducted to investigate the efficacy of DAAs: sofosbuvir (SOF) and ribavirin (RBV), along with black cumin (BLC) and ascorbate (ASC), as adjuvants on hematological parameters; oxidative stress markers such as total antioxidant status (TAS), superoxide dismutase (SOD), reduced (GSH) and oxidized (GSSG) glutathione (GSH), gamma-glutamyl transferase (GGT), and malondialdehyde (MDA); liver function markers such as aspartate transaminase (AST), alanine aminotransferase (ALT), bilirubin, and alkaline phosphatase (ALP); and viral load with determined genotypes. HCV-infected patients (n = 30) were randomly divided into two equal groups: control group (n = 15) and treatment group (n = 15). The control group was subjected only to SOF and RBV (400 mg each/day). Synergistically, the treatment group was administered with adjuvant therapy of BLC (250 mg/day) and ASC (1000 mg/day) along with DAAs (400 mg each/day) for 8 weeks. All selected patients were subjected to sampling at pre- and posttreatment stages for the assessment of defined parameters. The data revealed that the BLC/ASC adjuvant therapy boosted the efficacy of DAAs by reducing the elevated levels of liver markers such as AST, ALT, ALP, and bilirubin in the treatment group compared with those in the control group (P > 0.05). The adjuvant therapy synchronously showed an ameliorating effect on hematological parameters. The SOF/RBV with adjuvant therapy also demonstrated an increasing effect in the activity of SOD, TAS, and GSH and a decreasing effect for GSSG, GGT, and malondialdehyde (MDA; P > 0.05) followed by curtailing a RT-PCR-quantified viral load. Our findings provide evidence that systemic administration of BLC/ASC efficiently alleviates hematological, serological, and antioxidant markers as well as the viral load in hepatitis C patients. This highlights a potentially novel role of BLC and ASC in palliating hepatitis C.


Assuntos
Adjuvantes Farmacêuticos/uso terapêutico , Antioxidantes/uso terapêutico , Antivirais/uso terapêutico , Ácido Ascórbico/administração & dosagem , Ácido Ascórbico/uso terapêutico , Hepatite C Crônica/tratamento farmacológico , Nigella sativa/química , Adjuvantes Farmacêuticos/farmacologia , Antioxidantes/farmacologia , Antivirais/farmacologia , Ácido Ascórbico/efeitos adversos , Biomarcadores/sangue , Glutationa/sangue , Hepacivirus/genética , Hepatite C Crônica/sangue , Hepatite C Crônica/fisiopatologia , Hepatite C Crônica/virologia , Humanos , Testes de Função Hepática , Malondialdeído/metabolismo , Estresse Oxidativo/efeitos dos fármacos , Ribavirina/uso terapêutico , Sofosbuvir/uso terapêutico , Superóxido Dismutase/metabolismo , gama-Glutamiltransferase/sangue
3.
PLoS One ; 14(6): e0218852, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31246992

RESUMO

BACKGROUND AND AIMS: Liver disease in people living with HIV co-infected with hepatitis C virus is a source of morbidity and mortality in Russia. HIV accelerates liver fibrosis in the setting of HCV co-infection and alcohol use. Zinc deficiency is common among people living with HIV and may be a factor that facilitates the underlying mechanisms of liver fibrosis. We investigated the association between zinc deficiency and advanced liver fibrosis in a cohort of HIV/HCV co-infected persons reporting heavy drinking in Russia. METHODS: This is a secondary data analysis of baseline data from 204 anti-retroviral treatment naïve HIV/HCV co-infected Russians with heavy drinking that were recruited into a clinical trial of zinc supplementation. The primary outcome of interest in this cross-sectional study was advanced liver fibrosis. Zinc deficiency, the main independent variable, was defined as plasma zinc <0.75 mg/L. Exploratory analyses were performed examining continuous zinc levels and fibrosis scores. Analyses were conducted using multivariable regression models adjusted for potential confounders. RESULTS: The prevalence of advanced liver fibrosis was similar for those with zinc deficiency compared to those with normal zinc levels, (27.7% vs. 23.0%, respectively). We did not detect an association between zinc deficiency and advanced liver fibrosis in the adjusted regression model (aOR: 1.28, 95% CI: 0.62-2.61, p = 0.51) nor in exploratory analyses. CONCLUSIONS: In this cohort of Russians with HIV/HCV co-infection, who are anti-retroviral treatment naïve and have heavy alcohol use, we did not detect an association between zinc deficiency or zinc levels and advanced liver fibrosis.


Assuntos
Consumo de Bebidas Alcoólicas/efeitos adversos , Infecções por HIV/complicações , Hepatite C Crônica/complicações , Cirrose Hepática/etiologia , Zinco/deficiência , Adulto , Consumo de Bebidas Alcoólicas/sangue , Estudos de Coortes , Coinfecção , Estudos Transversais , Feminino , Infecções por HIV/sangue , Infecções por HIV/epidemiologia , Hepatite C Crônica/sangue , Hepatite C Crônica/epidemiologia , Humanos , Cirrose Hepática/sangue , Cirrose Hepática/epidemiologia , Cirrose Hepática Alcoólica/sangue , Cirrose Hepática Alcoólica/epidemiologia , Cirrose Hepática Alcoólica/etiologia , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Prevalência , Federação Russa/epidemiologia , Adulto Jovem , Zinco/sangue
4.
Pak J Pharm Sci ; 32(1): 205-212, 2019 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30772810

RESUMO

Synthetic drugs are associated with adverse side-effects and rapid increase in resistance to most of them inspires to evaluate plants for their therapeutic values. We have been aimed to suggest the medicinal use of Nigella sativa seed aqueous extract to minimize the severity of liver damage via its antioxidant properties and its role in maintenance of cell ion-homeostasis. Annoyances in serum levels of some antioxidants and trace metals in human hepatitis C infected patients were compared with that from acetaminophen-induced hepatotoxic rabbits. Serum analysis of human patients and that of hepatotoxic rabbits have exhibited the same trend of incidence of liver marker enzymes, antioxidant levels, and trace metal concentrations, except for the serum levels of cobalt. Significance of pre-/ or post-treatment of Nigella sativa to acetaminophen induced-hepatotoxic rabbit has also evaluated. NS post-treatment to rabbits has been found effective in normalizing the levels (P<0.001) of serum liver markers; especially the ALP levels, and the antioxidants; with significant effect on the serum catalase levels. However, NS pre-treatment has shown its role (P<0.001) in maintaining the serum nickel and cobalt concentrations. Therefore, we suggest the use of Nigella sativa seeds as pre-/ or post-treatment therapy, and also as supplement to the normal medications of liver infection to normalize the status of cell antioxidants and trace metal concentrations.


Assuntos
Antioxidantes/farmacologia , Doença Hepática Induzida por Substâncias e Drogas/prevenção & controle , Fígado/efeitos dos fármacos , Nigella sativa , Estresse Oxidativo/efeitos dos fármacos , Extratos Vegetais/farmacologia , Acetaminofen , Adulto , Idoso , Animais , Antioxidantes/isolamento & purificação , Biomarcadores/sangue , Estudos de Casos e Controles , Doença Hepática Induzida por Substâncias e Drogas/sangue , Doença Hepática Induzida por Substâncias e Drogas/patologia , Citoproteção , Modelos Animais de Doenças , Feminino , Hepatite C Crônica/sangue , Hepatite C Crônica/diagnóstico , Hepatite C Crônica/virologia , Humanos , Fígado/metabolismo , Fígado/patologia , Masculino , Metais/sangue , Pessoa de Meia-Idade , Nigella sativa/química , Extratos Vegetais/isolamento & purificação , Coelhos , Sementes , Oligoelementos/sangue , Adulto Jovem
5.
Vascul Pharmacol ; 113: 86-91, 2019 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-29886103

RESUMO

BACKGROUND AND AIM: Anticoagulation therapy is the main line of treatment for acute portal vein thrombosis (PVT) in the absence of cirrhosis. However, the use of this therapy in cirrhotic PVT is still with doubtful evidence. We aimed to evaluate the efficacy and safety of rivaroxaban compared to warfarin for the management of acute non-neoplastic PVT in Hepatitis C virus (HCV)-related compensated cirrhosis. METHODS: Out of 578 patients with chronic HCV infection, 80 patients with acute PVT who had undergone splenectomy due to hypersplenism and 4 patients with acute PVT due to portal pyemia were selected. The patients were randomly assigned (1:1) to the study group (n = 40), in which the patients received rivaroxaban 10 mg/12 h, or the control group (n = 40), in which the patients received warfarin. RESULTS: In the rivaroxaban group, the resolution of PVT was achieved in 34 patients (85%) within 2.6 ±â€¯0.4 months and delayed, partial recanalization after 6.7 ±â€¯1.2 months (n = 6.15%). Complications such as major bleeding, abnormal liver functions, death, or recurrence did not occur during treatment, and patients in this group showed improved short-term survival rate (20.4 ±â€¯2.2 months) compared to the survival rate in the control group (10.6 ±â€¯1.8 months) in which warfarin achieved complete resolution in 45% of patients. Complications such as severe upper GI tract bleeding (43.3%), hepatic decompensation (22.5%), progression to mesenteric ischemia (12.5%), recurrence (10%), and death (20%) were observed in the control group. The duration until complete resolution of thrombus correlated with age, the extent of the thrombus, creatinine level, and MELD score. The recurrence after complete resolution of thrombus correlated with age, the extent of the thrombus, thrombogenic gene polymorphism, and the use of warfarin. CONCLUSION: Rivaroxaban was effective and safe in acute HCV-related non-neoplastic PVT with improved short-term survival rate; ClinicalTrials.gov Identifier: NCT03201367.


Assuntos
Anticoagulantes/uso terapêutico , Coagulação Sanguínea/efeitos dos fármacos , Inibidores do Fator Xa/uso terapêutico , Veia Porta , Rivaroxabana/uso terapêutico , Trombose Venosa/tratamento farmacológico , Varfarina/uso terapêutico , Adulto , Anticoagulantes/efeitos adversos , Angiografia por Tomografia Computadorizada , Egito , Inibidores do Fator Xa/efeitos adversos , Feminino , Hemorragia/induzido quimicamente , Hepatite C Crônica/sangue , Hepatite C Crônica/complicações , Hepatite C Crônica/virologia , Humanos , Cirrose Hepática/sangue , Cirrose Hepática/virologia , Masculino , Pessoa de Meia-Idade , Flebografia/métodos , Veia Porta/diagnóstico por imagem , Recidiva , Rivaroxabana/efeitos adversos , Fatores de Tempo , Resultado do Tratamento , Ultrassonografia Doppler em Cores , Trombose Venosa/sangue , Trombose Venosa/diagnóstico por imagem , Trombose Venosa/virologia , Varfarina/efeitos adversos
6.
BMC Infect Dis ; 20(1): 3, 2019 Dec 31.
Artigo em Inglês | MEDLINE | ID: mdl-31892307

RESUMO

BACKGROUND: Nucleic acid hybridization (NAH) of hepatitis C virus (HCV) is a practical and reliable tool for virus genotyping. Genotype assignment is an important factor in the prediction of treatment success in chronic hepatitis C patients. The aim of this study was to determine the genotype distribution among HCV clinical isolates in Jordan between 2007 and 2018. METHODS: Electronic and paper-based clinical data registry records from 2007 to 2018 at the Jordan University Hospital (JUH) were retrospectively examined for individuals with HCV genotype, HCV viral load, and alanine aminotransferase (ALT) testing results. Genotype determination was based on NAH technique using the HCV 5' untranslated region (5' UTR) with 386 requests available from 342 unique individuals. RESULTS: A total of 263 out of 342 unique individuals (76.9%) had genotyping results available for final analysis with 259 individuals each having a single genotyping result. The most common HCV genotypes in the study were: genotype 4 (n = 142, 54.0%), genotype 1 (n = 87, 33.1%), genotype 3 (n = 16, 6.1%), genotype 2 (n = 9, 3.4%), other undetermined genotypes (n = 5, 1.9%) and mixed infections (n = 4, 1.5%). Sub-genotyping results were available for 46 individuals as follows: sub-genotype 4c/d (n = 13, 28.3%), sub-genotype 1a (n = 11, 23.9%), sub-genotype 1b (n = 10, 21.7%), sub-genotype 4a (n = 8, 17.4%), sub-genotype 3a (n = 2, 4.3%), sub-genotypes 2a/c and 4 h (n = 1, 2.2% for both). Individuals infected with genotype 1 showed higher viral load when compared to those infected with genotype 4 (p = 0.048, t-test). Younger HCV-infected individuals (< 52 years) had higher ALT levels compared to older individuals (p = 0.036, t-test). Self-reported risk factors for HCV acquisition included: history of previous surgery, invasive dental procedures, and blood transfusion, delivery at home, circumcision at home and wet cupping therapy (hijama). CONCLUSIONS: High genetic diversity of HCV was found in Jordan, with genotypes 4 and 1 as the most prevalent genotypes co-circulating in the country. Potential impact of virus genotype on disease markers (viral load, ALT) was detected and needs further assessment. The study can be helpful to plan for future prevention and management of HCV infection in Jordan.


Assuntos
Hepacivirus/genética , Hepatite C Crônica/virologia , Adulto , Alanina Transaminase/sangue , Feminino , Genótipo , Hepacivirus/patogenicidade , Hepatite C Crônica/sangue , Hospitais de Ensino , Humanos , Jordânia/epidemiologia , Masculino , Pessoa de Meia-Idade , Prevalência , Estudos Retrospectivos , Fatores de Risco , Atenção Terciária à Saúde , Carga Viral
7.
Nutrients ; 10(6)2018 05 31.
Artigo em Inglês | MEDLINE | ID: mdl-29857547

RESUMO

BACKGROUND: Coffee intake has been shown to modulate both the effect of ethanol on serum GGT activities in some alcohol consumers and the risk of alcoholic cirrhosis in some patients with chronic diseases. This study aimed to analyze the impact of coffee intake and alcohol consumption on advanced liver fibrosis (ALF) in HIV-HCV co-infected patients. METHODS: ANRS CO13-HEPAVIH is a French, nationwide, multicenter cohort of HIV-HCV-co-infected patients. Sociodemographic, behavioral, and clinical data including alcohol and coffee consumption were prospectively collected using annual self-administered questionnaires during five years of follow-up. Mixed logistic regression models were performed, relating coffee intake and alcohol consumption to ALF. RESULTS: 1019 patients were included. At the last available visit, 5.8% reported high-risk alcohol consumption, 27.4% reported high coffee intake and 14.5% had ALF. Compared with patients with low coffee intake and high-risk alcohol consumption, patients with low coffee intake and low-risk alcohol consumption had a lower risk of ALF (aOR (95% CI) 0.24 (0.12­0.50)). In addition, patients with high coffee intake had a lower risk of ALF than the reference group (0.14 (0.03­0.64) in high-risk alcohol drinkers and 0.11 (0.05­0.25) in low-risk alcohol drinkers). CONCLUSIONS: High coffee intake was associated with a low risk of liver fibrosis even in HIV-HCV co-infected patients with high-risk alcohol consumption.


Assuntos
Consumo de Bebidas Alcoólicas/efeitos adversos , Café/efeitos adversos , Infecções por HIV/complicações , Hepatite C Crônica/complicações , Cirrose Hepática/etiologia , Fígado/fisiopatologia , Adulto , Biomarcadores/sangue , Estudos de Coortes , Progressão da Doença , Feminino , França/epidemiologia , Infecções por HIV/sangue , Infecções por HIV/virologia , Hepatite C Crônica/sangue , Hepatite C Crônica/virologia , Humanos , Cirrose Hepática/complicações , Cirrose Hepática/epidemiologia , Cirrose Hepática/fisiopatologia , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Risco , Autorrelato , Índice de Gravidade de Doença
8.
Eur J Gastroenterol Hepatol ; 30(7): 741-746, 2018 07.
Artigo em Inglês | MEDLINE | ID: mdl-29664746

RESUMO

In the past few years, a growing body of clinical evidence has highlighted the risk of vitamin D deficiency in patients with chronic hepatitis C and that vitamin D levels are associated with the course of hepatitis C virus (HCV) infection, adverse effects, and treatment response to peginterferon/ribavirin. Recently, studies have found that vitamin D status is related to drug resistance and increased risk of infection in patients with liver cirrhosis. Vitamin D-related gene polymorphisms have been found to explain the interactions between vitamin D deficiency and HCV infection, offering a new perspective toward understanding the current problems such as the development of insulin resistance and racial differences in sustained virological response. Studies have been conducted to determine whether vitamin D supplementation as an adjuvant yields a better result compared with traditional HCV treatment. Here, we provide a brief review of the past and present knowledge of vitamin D in HCV infection.


Assuntos
Hepacivirus/patogenicidade , Hepatite C Crônica/epidemiologia , Deficiência de Vitamina D/epidemiologia , Antivirais/uso terapêutico , Biomarcadores/sangue , Suplementos Nutricionais , Farmacorresistência Viral , Predisposição Genética para Doença , Hepacivirus/efeitos dos fármacos , Hepacivirus/genética , Hepatite C Crônica/sangue , Hepatite C Crônica/tratamento farmacológico , Hepatite C Crônica/virologia , Humanos , Fenótipo , Polimorfismo Genético , Fatores de Risco , Resposta Viral Sustentada , Resultado do Tratamento , Vitamina D/sangue , Vitamina D/uso terapêutico , Deficiência de Vitamina D/sangue , Deficiência de Vitamina D/tratamento farmacológico , Deficiência de Vitamina D/genética
9.
World J Gastroenterol ; 24(4): 445-460, 2018 Jan 28.
Artigo em Inglês | MEDLINE | ID: mdl-29398866

RESUMO

The secosteroid hormone vitamin D has, in addition to its effects in bone metabolism also functions in the modulation of immune responses against infectious agents and in inhibiting tumorigenesis. Thus, deficiency of vitamin D is associated with several malignancies, but also with a plethora of infectious diseases. Among other communicable diseases, vitamin D deficiency is involved in the pathogenesis of chronic liver diseases caused by hepatitis B and C viruses (HBV, HCV) and high prevalence of vitamin D deficiency with serum levels below 20 mg/mL in patients with HBV and HCV infection are found worldwide. Several studies have assessed the effects of vitamin D supplementation on the sustained virological response (SVR) to interferon (IFN) plus ribavirin (RBV) therapy in HBV and HCV infection. In these studies, inconsistent results were reported. This review addresses general aspects of vitamin D deficiency and, in particular, the significance of vitamin D hypovitaminosis in the outcome of HBV- and HCV-related chronic liver diseases. Furthermore, current literature was reviewed in order to understand the effects of vitamin D supplementation in combination with IFN-based therapy on the virological response in HBV and HCV infected patients.


Assuntos
Antivirais/uso terapêutico , Hepatite B Crônica/imunologia , Hepatite C Crônica/imunologia , Deficiência de Vitamina D/imunologia , Vitamina D/uso terapêutico , Progressão da Doença , Quimioterapia Combinada/métodos , Hepacivirus/isolamento & purificação , Hepacivirus/fisiologia , Vírus da Hepatite B/isolamento & purificação , Vírus da Hepatite B/fisiologia , Hepatite B Crônica/sangue , Hepatite B Crônica/tratamento farmacológico , Hepatite B Crônica/virologia , Hepatite C Crônica/sangue , Hepatite C Crônica/tratamento farmacológico , Hepatite C Crônica/virologia , Humanos , Interferons/uso terapêutico , Ribavirina/uso terapêutico , Resposta Viral Sustentada , Carga Viral/efeitos dos fármacos , Vitamina D/sangue , Deficiência de Vitamina D/sangue , Deficiência de Vitamina D/tratamento farmacológico
10.
Clin Pharmacokinet ; 57(8): 911-928, 2018 08.
Artigo em Inglês | MEDLINE | ID: mdl-29353349

RESUMO

Daclatasvir is a first-in-class, highly selective, hepatitis C virus, non-structural protein 5a polymerase replication complex inhibitor with picomolar potency and broad genotypic coverage in vitro. Daclatasvir undergoes rapid absorption, with a time to reach maximum plasma concentration of 1-2 h and an elimination half-life of ~ 10 to 14 h observed in single-ascending dose studies. Steady state was achieved by day 4 in multiple-ascending dose studies. Daclatasvir can be administered without regard to food or pH modifiers. Daclatasvir exposure is similar between healthy subjects and subjects infected with hepatitis C virus. Intrinsic factors such as age, race, or sex do not impact daclatasvir exposure. No dose adjustment is necessary for patients with any degree of hepatic or renal impairment. Daclatasvir has low-to-moderate clearance with the predominant route of elimination via cytochrome P450 3A4-mediated metabolism and P-glycoprotein excretion and intestinal secretion. Renal clearance is a minor route of elimination for daclatasvir. As a result, the dose of daclatasvir should be reduced from 60 to 30 mg once daily when co-administered with strong inhibitors of cytochrome P450 3A4. No dose adjustment is required when daclatasvir is co-administered with moderate inhibitors of cytochrome P450 3A4. The dose of daclatasvir should be increased from 60 to 90 mg once daily when co-administered with moderate inducers of cytochrome P450 3A4. Co-administration of daclatasvir with strong inducers of cytochrome P450 3A4 is contraindicated. Concurrent medications with inhibitory effects on P-glycoprotein without concurrent inhibition of cytochrome P450 3A4 are unlikely to cause marked changes in daclatasvir exposure, as the clearance of daclatasvir is through both cytochrome P450 3A4 and P-glycoprotein. The potential for daclatasvir to affect the pharmacokinetics of concomitantly administered drugs that are substrates of the cytochrome P450 enzyme system is low. In vitro, daclatasvir is a weak-to-moderate inhibitor of transporters including organic cation transporter 1, P-glycoprotein, organic transporting polypeptide 1B1, organic transporting polypeptide 1B3, and breast cancer resistance protein, although in clinical studies, daclatasvir has not altered the pharmacokinetics of concomitantly administered drugs that are substrates of these transporters to an appreciable degree, except for rosuvastatin. In summary, daclatasvir is a hepatitis C virus, non-structural protein 5a-selective inhibitor with a well-characterized pharmacokinetic profile that forms part of potent and well-tolerated all-oral treatment regimens for chronic hepatitis C virus infection.


Assuntos
Antivirais/farmacocinética , Hepatite C Crônica/tratamento farmacológico , Imidazóis/farmacocinética , Absorção Fisiológica , Animais , Antivirais/administração & dosagem , Antivirais/sangue , Disponibilidade Biológica , Carbamatos , Ensaios Clínicos como Assunto , Citocromo P-450 CYP3A/metabolismo , Avaliação Pré-Clínica de Medicamentos , Interações Medicamentosas , Meia-Vida , Hepatite C Crônica/sangue , Humanos , Imidazóis/administração & dosagem , Imidazóis/sangue , Pirrolidinas , Distribuição Tecidual , Valina/análogos & derivados , Proteínas não Estruturais Virais/antagonistas & inibidores
11.
Cochrane Database Syst Rev ; 11: CD011564, 2017 11 03.
Artigo em Inglês | MEDLINE | ID: mdl-29099543

RESUMO

BACKGROUND: Vitamin D deficiency is often reported in people with chronic liver diseases. Therefore, improving vitamin D status could have a beneficial effect on people with chronic liver diseases. OBJECTIVES: To assess the beneficial and harmful effects of vitamin D supplementation in people with chronic liver diseases. SEARCH METHODS: We searched The Cochrane Hepato-Biliary Group Controlled Trials Register, Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, Embase, Science Citation Index Expanded, and Conference Proceedings Citation Index - Science. We also searched databases of ongoing trials and the World Health Organization International Clinical Trials Registry Platform. We scanned bibliographies of relevant publications and asked experts and pharmaceutical companies for additional trials. All searches were up to January 2017. SELECTION CRITERIA: Randomised clinical trials that compared vitamin D at any dose, duration, and route of administration versus placebo or no intervention in adults with chronic liver diseases. Vitamin D could have been administered as supplemental vitamin D (vitamin D3 (cholecalciferol) or vitamin D2 (ergocalciferol)), or an active form of vitamin D (1α-hydroxyvitamin D (alfacalcidol), 25-hydroxyvitamin D (calcidiol), or 1,25-dihydroxyvitamin D (calcitriol)). DATA COLLECTION AND ANALYSIS: We used standard methodological procedures expected by The Cochrane Collaboration. We contacted authors of the trials to ask for missing information. We conducted random-effects and fixed-effect meta-analyses. For dichotomous outcomes, we calculated risk ratios (RRs), and for continuous outcomes, we calculated mean differences (MD), both with 95% confidence intervals (CI) and Trial Sequential Analyses-adjusted CIs. We calculated Peto odds ratio (OR) for rare events. We considered risk of bias in domains to assess the risk of systematic errors. We conducted Trial Sequential Analyses to control the risk of random errors. We assessed the quality of the evidence with GRADE. MAIN RESULTS: We included 15 randomised clinical trials with 1034 participants randomised. All trials had a parallel group design. Nine trials were conducted in high-income countries and six trials in middle-income countries. All trials were at high risk of bias. Six trials included participants with chronic hepatitis C, four trials included participants with liver cirrhosis, four trials included participants with non-alcoholic fatty liver disease, and one trial included liver transplant recipients. All included trials reported the baseline vitamin D status of participants. Participants in six trials had baseline 25-hydroxyvitamin D levels at or above vitamin D adequacy (20 ng/mL), while participants in the remaining nine trials were vitamin D insufficient (less than 20 ng/mL). All trials administered vitamin D orally. Mean duration of vitamin D supplementation was 0.5 years and follow-up was 0.6 years. Eleven trials (831 participants; 40% women; mean age 52 years) tested vitamin D3, one trial (18 men; mean age 61 years) with three intervention groups tested vitamin D2 and 25-dihydroxyvitamin D in separate groups, and three trials (185 participants; 55% women; mean age 55 years) tested 1,25-dihydroxyvitamin D. Seven trials used placebo, and eight trials used no intervention in the control group.The effect of vitamin D on all-cause mortality at the end of follow-up is uncertain because the results were imprecise (Peto OR 0.70, 95% CI 0.09 to 5.38; I2 = 32%; 15 trials; 1034 participants; very low quality evidence). Trial Sequential Analysis on all-cause mortality was performed based on a mortality rate in the control group of 10%, a relative risk reduction of 28% in the experimental intervention group, a type I error of 2.5%, and type II error of 10% (90% power). There was no diversity. The required information size was 6396 participants. The cumulative Z-curve did not cross the trial sequential monitoring boundary for benefit or harm after the 15th trial, and the Trial Sequential Analyses-adjusted CI was 0.00 to 2534.The effect of vitamin D on liver-related mortality (RR 1.62, 95% CI 0.08 to 34.66; 1 trial; 18 participants) and on serious adverse events such as hypercalcaemia (RR 5.00, 95% CI 0.25 to 100.8; 1 trial; 76 participants), myocardial infarction (RR 0.75, 95% CI 0.08 to 6.81; 2 trials; 86 participants), and thyroiditis (RR 0.33 95% CI 0.01 to 7.91; 1 trial; 68 participants) is uncertain because the results were imprecise. The evidence on all these outcomes is of very low quality. The effect of vitamin D3 on non-serious adverse events such as glossitis (RR 3.70, 95% CI 0.16 to 87.6; 1 trial; 65 participants; very low quality of evidence) is uncertain because the result was imprecise.Due to few data, we did not conduct Trial Sequential Analysis on liver-related mortality, and serious and non-serious adverse events.We found no data on liver-related morbidity and health-related quality of life in the randomised trials included in this review. AUTHORS' CONCLUSIONS: We are uncertain as to whether vitamin D supplements in the form of vitamin D3, vitamin D2, 1,25-dihydroxyvitamin D, or 25-dihydroxyvitamin D have important effect on all-cause mortality, liver-related mortality, or on serious or non-serious adverse events because the results were imprecise. There is no evidence on the effect of vitamin D supplementation on liver-related morbidity and health-related quality of life. Our conclusions are based on few trials with an insufficient number of participants and on lack of data on clinically important outcomes. In addition, the analysed trials are at high risk of bias with significant intertrial heterogeneity. The overall quality of evidence is very low.


Assuntos
Hepatopatias/complicações , Deficiência de Vitamina D/terapia , Vitamina D/administração & dosagem , Vitaminas/administração & dosagem , Administração Oral , Calcitriol/administração & dosagem , Causas de Morte , Colecalciferol/administração & dosagem , Doença Crônica , Ergocalciferóis/administração & dosagem , Feminino , Hepatite C Crônica/sangue , Hepatite C Crônica/complicações , Humanos , Hidroxicolecalciferóis/administração & dosagem , Cirrose Hepática/sangue , Cirrose Hepática/complicações , Hepatopatias/sangue , Hepatopatias/mortalidade , Transplante de Fígado , Masculino , Pessoa de Meia-Idade , Hepatopatia Gordurosa não Alcoólica/sangue , Hepatopatia Gordurosa não Alcoólica/complicações , Ensaios Clínicos Controlados Aleatórios como Assunto , Vitamina D/análogos & derivados , Deficiência de Vitamina D/mortalidade
12.
Sci Rep ; 7(1): 8905, 2017 08 21.
Artigo em Inglês | MEDLINE | ID: mdl-28827788

RESUMO

Hepatic fibrosis is the net accumulation of matrix tissue components which controlled by pro-fibrolytic enzymes, matrix metalloproteinases (MMPs), and pro-fibrotic cytokine, TGF-ß1, and enzymes, tissue inhibitors of MMPs (TIMPs). Vitamin D (VD) supplementation has been shown to reverse these processes in vitro and in vivo. This study sought to determine the effect of VD supplementation on serum fibrotic markers in chronic hepatitis C (CHC) patients. Fifty-four CHC patients with VD deficiency were randomized into two groups, a VD group (n = 29) and a placebo group (n = 29). The serum levels of 25-hydroxy VD, TGF-ß1, TIMP-1, MMP2 and MMP9 were measured at baseline and at the end of the 6-week study period. Upon correction of VD levels, TGF-ß1 and TIMP-1 levels were decreased, and the MMP2 and MMP9 levels were significantly increased in the VD group. A comparison of the mean changes (delta) in the markers between groups showed that TGF-ß1 and TIMP-1 levels were significantly decreased and the MMP2 and MMP9 were significantly higher in the VD group than in the placebo group. By using CHC patients as a model, this study provides additional evidence that VD plays an important role in the reversal of hepatic fibrogenesis.


Assuntos
Biomarcadores/sangue , Suplementos Nutricionais , Hepatite C Crônica/sangue , Hepatite C Crônica/complicações , Cirrose Hepática/tratamento farmacológico , Cirrose Hepática/etiologia , Vitamina D/administração & dosagem , Adulto , Idoso , Feminino , Genótipo , Hepacivirus/genética , Hepatite C Crônica/virologia , Humanos , Cirrose Hepática/patologia , Masculino , Pessoa de Meia-Idade , Fator de Crescimento Transformador beta1/sangue , Carga Viral , Vitamina D/análogos & derivados , Vitamina D/sangue
13.
PLoS One ; 12(4): e0174608, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28376103

RESUMO

Vitamin D deficiency was common among patients with chronic hepatitis C (CHC) and had negative influence on treatment outcome. Correction of vitamin D deficiency improved treatment response. Interferon gamma-induced protein 10 (IP-10) and enzyme dipeptidyl peptidase-4 (DPP IV) involved in inflammatory responses in CHC. Their higher levels at pretreatment of CHC could predict poorer responses. Vitamin D suppressed expression of IP-10 from monocytes in vitro. In CHC patients, DPP IV involved in IP-10 regulation. We hypothesized that correction of vitamin D insufficiency or deficiency in CHC patients might restore immune dysregulation through a pathway linked to the TH1/Th2 cytokines, IP-10 or DPP IV. We conducted a double-blind, placebo-controlled trial. 80 CHC patients with vitamin D levels less than 30 ng/mL were assigned to receive vitamin D (40) or placebo (40) supplements for 6 weeks. The levels of 25-hydroxyvitamin D [25(OH)D], Th1/Th2 cytokines, IP-10 and DPP IV were measured at baseline and at the 6th week. At the end of study, the mean 25(OH)D level in vitamin D group was significantly increased and normalised. There were no changes in the level of Th1/Th2 cytokines. Our important finding revealed that upon correction of vitamin D insufficiency or deficiency, the serum IP-10 and DPP IV levels were decreased significantly as compare to the placebo group (delta changes; 83.27 vs -133.80; 95% CI [-326.910, -40.758], p = 0.0125, and 271.04 vs -518.69; 95% CI [-1179,15, -59.781], p = 0.0305, respectively. As previous evidences suggested that each factor individually influenced and predicted outcome of CHC treatment. Our results offer a new insight and help to piece the puzzle of vitamin D deficiency, IP-10 and DPP IV together in CHC. TRIAL REGISTRATION: Thai Clinical Trials Registry TCTR20160429001.


Assuntos
Quimiocina CXCL10/sangue , Dipeptidil Peptidase 4/sangue , Hepatite C Crônica/sangue , Hepatite C Crônica/complicações , Deficiência de Vitamina D/sangue , Deficiência de Vitamina D/complicações , Adulto , Idoso , Biomarcadores/sangue , Citocinas/sangue , Método Duplo-Cego , Ergocalciferóis/uso terapêutico , Feminino , Hepatite C Crônica/tratamento farmacológico , Humanos , Masculino , Pessoa de Meia-Idade , Deficiência de Vitamina D/tratamento farmacológico
14.
Biol Trace Elem Res ; 179(1): 1-7, 2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-28093695

RESUMO

Zinc is essential for the activation of approximately 300 metallo-enzymes. Serum and hepatic zinc is decreased in chronic liver disease patients, and zinc depletion has been suggested to accelerate liver fibrosis. The study was designed to assess Zinc status in chronic HCV Egyptian patients and its relationship to fibrosis stage diagnosed by FibroScan. This was a cross-sectional study on 297 Egyptian patients with naïve chronic HCV. All patients underwent laboratory tests (including assessment of serum Zinc) and liver stiffness measurement (LSM) by Transient Elastography (FibroScan®). The study included 170 (57.2%) females and 127 (42.8%) males with a mean age 52.4 ± 10.2 years. Most of the patients had zinc deficiency as the mean zinc level was 55.5 ± 30.7 µg/dl. The FibroScan scores showed that 97 patients had mild to moderate fibrosis (≤F2), while 200 patients had advanced to severe fibrosis (˃F2). Zinc level was significantly lower in patients with ˃F2 than those with ≤F2 (52 ± 30.7 vs 62.5 ± 29.7, p value: 0.005), as the zinc values decreased with the progression of liver fibrosis. Serum zinc level had a negative significant correlation with INR and negative significant correlation with FibroScan score but no correlation to bilirubin, ALT, AST, or albumin. Most of Egyptian chronic liver disease patients had zinc deficiency. Zinc level gets significantly lower with progression of fibrosis. Zinc supplementation is essential before and during antiviral therapy for HCV.


Assuntos
Hepatite C Crônica/sangue , Hepatite C Crônica/complicações , Cirrose Hepática/sangue , Cirrose Hepática/etiologia , Zinco/sangue , Zinco/deficiência , Estudos Transversais , Egito , Feminino , Humanos , Cirrose Hepática/metabolismo , Masculino , Pessoa de Meia-Idade , Zinco/metabolismo
15.
J Ethnopharmacol ; 196: 1-8, 2017 Jan 20.
Artigo em Inglês | MEDLINE | ID: mdl-27965049

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: Traditional Chinese medicine (TCM) has been widely used by the Chinese population for treatment of chronic hepatitis. However, the efficacy of TCM for patients with chronic hepatitis has not been confirmed, mostly due to the lack of available scientific parameters such as serum viral load to evaluate treatment response. AIM OF THE STUDY: We evaluated the efficacy of Rong-Yang-Jyh-Gan-Tang (RYJGT, composed of Long-Dan-Xie-Gan-Tang, Jia-Wei-Xia-Yao-San, Dan-Shen, and Hou-Po) on patients with chronic hepatitis C. MATERIALS AND METHODS: Thirty-six patients with chronic hepatitis C who had no response to or had contraindications to interferon-ribavirin therapy were randomly allocated to receive RYJGT 15g/day or placebo for 12 weeks. After a 2-week washout period, patients were crossed over to receive placebo or RYJGT for another 12 weeks. Evaluation parameters included liver biochemistries, serum HCVRNA, side effects of RYJGT/placebo, and TCM symptoms. RESULTS: Of the patients who had 12-week RYJGT treatment, 51.7% had decreased serum HCVRNA levels, whereas only 25.8% patients had decreased levels in the placebo group (p=0.036). TCM patterns of "Damp-Heat" and "Liver Qi Depression" had significantly improved after RYJGT treatment in comparison with the placebo. Logistic analyses showed that RYJGT treatment, and pre-treatment values of TCM symptoms of "Damp-Heat" and "Liver Qi Depression", were statistically significant factors in predicting the decrease in serum HCVRNA. CONCLUSION: Chronic hepatitis C patients who received a 12-week RYJGT treatment had significantly higher HCVRNA decrease ratio, and improved TCM symptoms of "Damp-Heat" and "Liver Qi Depression", than those who received the placebo. Our results require further larger scale clinical trials.


Assuntos
Antivirais/uso terapêutico , Medicamentos de Ervas Chinesas/uso terapêutico , Hepatite C Crônica/tratamento farmacológico , Idoso , Idoso de 80 Anos ou mais , Alanina Transaminase/sangue , Antivirais/farmacologia , Aspartato Aminotransferases/sangue , Estudos Cross-Over , Método Duplo-Cego , Medicamentos de Ervas Chinesas/farmacologia , Feminino , Hepacivirus/genética , Hepatite C Crônica/sangue , Hepatite C Crônica/virologia , Humanos , Masculino , Medicina Tradicional Chinesa , Pessoa de Meia-Idade , RNA Viral/sangue , Resultado do Tratamento
16.
Eur J Gastroenterol Hepatol ; 29(3): 289-296, 2017 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-27906753

RESUMO

AIM: The utility of noninvasive serum markers to longitudinally monitor liver fibrosis is not established. METHODS: A total of 70 patients with chronic hepatitis C who had previously failed antiviral therapy were randomized to receive pegylated interferon with or without silymarin for 24 months. Enhanced Liver Fibrosis (ELF) tests (hyularonic acid, terminal peptide of procollagen III, tissue inhibitor of matrix metaloproteinase-1) were performed on patient sera obtained before, during and at the end of the study (0, 12, 24 months) and liver histology obtained before and at the end of the study. RESULTS: At 24 months, absolute changes in Ishak fibrosis stage and ELF ranged from -4 to +4 and from -2.41 to +2.68, respectively. Absolute changes in ELF at 12 months were significantly associated with changes in both ELF and histology at 24 months. A model combining both baseline ELF and change of ELF at 12 months could predict the 24-month ELF (R=0.609, P<1×10), a decrease in ELF at 24 months [area under the curve (AUC): 0.80-0.85] and an increase in ELF at 24 months (AUC: 0.81-0.85). Furthermore, a model combining both baseline histologic stage and ELF together with the change of ELF at 12 months could predict 24-month histology (R=0.601, P<1×10, AUC: 0.88-0.92), histologic fibrosis regression (AUC: 0.81-0.84) and progression (AUC: 0.86-0.91). CONCLUSION: Our observations suggest that a change in the serum marker ELF predicts changes in liver fibrosis over a longer period. These data support the use of ELF as a surrogate marker of liver fibrosis evolution in monitoring antifibrotic treatments, thus permitting 'response-guided' therapy by the early identification of patients who will benefit from prolonged treatment.


Assuntos
Antivirais/uso terapêutico , Hepatite C Crônica/tratamento farmacológico , Interferon-alfa/uso terapêutico , Cirrose Hepática/tratamento farmacológico , Fígado/efeitos dos fármacos , Polietilenoglicóis/uso terapêutico , Silimarina/uso terapêutico , Adolescente , Adulto , Idoso , Antivirais/efeitos adversos , Área Sob a Curva , Áustria , Biomarcadores/sangue , Biópsia , Quimioterapia Combinada , Feminino , Genótipo , Alemanha , Hepacivirus/efeitos dos fármacos , Hepacivirus/genética , Hepatite C Crônica/sangue , Hepatite C Crônica/diagnóstico , Humanos , Ácido Hialurônico/sangue , Interferon alfa-2 , Interferon-alfa/efeitos adversos , Fígado/metabolismo , Fígado/patologia , Fígado/virologia , Cirrose Hepática/sangue , Cirrose Hepática/diagnóstico , Cirrose Hepática/virologia , Masculino , Pessoa de Meia-Idade , Fragmentos de Peptídeos/sangue , Polietilenoglicóis/efeitos adversos , Valor Preditivo dos Testes , Pró-Colágeno/sangue , Estudos Prospectivos , RNA Viral/sangue , Curva ROC , Proteínas Recombinantes/efeitos adversos , Proteínas Recombinantes/uso terapêutico , Silimarina/efeitos adversos , Fatores de Tempo , Inibidor Tecidual de Metaloproteinase-1/sangue , Resultado do Tratamento , Carga Viral , Adulto Jovem
17.
PLoS One ; 11(11): e0166036, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27832143

RESUMO

CONCLUSION: Higher vitamin D status was not beneficially associated with responses to therapy; if anything, patients with higher vitamin D concentrations were less likely to attain SVR. Our data do not support a role for vitamin D supplementation as an adjuvant therapy for HCV.


Assuntos
Antivirais/uso terapêutico , Hepacivirus/efeitos dos fármacos , Hepatite C Crônica/tratamento farmacológico , Interferon-alfa/uso terapêutico , Ribavirina/uso terapêutico , Vitamina D/uso terapêutico , Vitaminas/uso terapêutico , Adulto , Feminino , Hepatite C Crônica/sangue , Humanos , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento
18.
J Hum Nutr Diet ; 29(3): 345-53, 2016 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-26216648

RESUMO

BACKGROUND: Insulin resistance promotes liver disease progression and may be associated with a lower response rate in treated hepatitis C virus (HCV) infected patients. n-3 polyunsaturated fatty acid (PUFA) supplementation may reduce insulin resistance. The present study aimed to evaluate the effect of n-3 PUFA supplementation on insulin resistance in these patients. METHODS: In a randomised, double-blind clinical trial, 154 patients were screened. After applying inclusion criteria, 52 patients [homeostasis model assessment index of insulin resistance (HOMA-IR ≥2.5)] were randomly divided into two groups: n-3 PUFA (n = 25/6000 mg day(-1) of fish oil) or control (n = 27/6000 mg day(-1) of soybean oil). Both groups were supplemented for 12 weeks and underwent monthly nutritional consultation. Biochemical tests were performed at baseline and after intervention. Statistical analysis was performed using the Wilcoxon Mann-Whitney test for comparisons and the Wilcoxon test for paired data. Statistical package r, version 3.02 (The R Project for Statistical Computing) was used and P < 0.05 (two-tailed) was considered statistically significant. RESULTS: Comparisons between groups showed that n-3 PUFA supplementation was more effective than the control for reducing HOMA-IR (P = 0.015) and serum insulin (P = 0.016). The n-3 PUFA group not only showed a significant reduction in HOMA-IR 3.8 (3.2-5.0) versus 2.4 (1.8-3.3) (P = 0.002); serum insulin 17.1 (13.8-20.6) µIU mL(-1) versus 10.9 (8.6-14.6) µIU mL(-1) (P = 0.001); and glycated haemoglobin 5.4% (5.0-5.7%) versus 5.1% (4.8-5.6%) (P = 0.011), but also presented an increase in interleukin-1 97.5 (0.0-199.8) pg mL(-1) versus 192.4 (102.2-266.8) pg mL(-1) (P = 0.003) and tumour necrosis factor 121.2 (0.0-171.3) pg mL(-1) versus 185.7 (98.0-246.9) pg mL(-1) (P = 0.003). CONCLUSIONS: n-3 PUFA supplementation reduces insulin resistance in genotype 1 HCV infected patients.


Assuntos
Ácidos Graxos Ômega-3/administração & dosagem , Hepatite C Crônica/tratamento farmacológico , Resistência à Insulina , Adolescente , Adulto , Idoso , Índice de Massa Corporal , Suplementos Nutricionais , Fígado Gorduroso/complicações , Feminino , Óleos de Peixe/administração & dosagem , Genótipo , Hepatite C Crônica/sangue , Hepatite C Crônica/complicações , Humanos , Insulina/sangue , Masculino , Pessoa de Meia-Idade
19.
J Immunol Res ; 2015: 846348, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26504859

RESUMO

OBJECTIVES: To assess zinc (Zn) and vitamin D (Vit. D) status in chronic Hepatitis C virus- (HCV) infected patients and their relationship to interleukin- (IL-) 17 and disease severity and then investigate whether Zn and Vit. D3 modulate IL-17 expression in chronic HCV patients. METHODS: Seventy patients and fifty healthy subjects were investigated. Serum levels of Zn, Vit. D, and IL-17 were assessed in the patients group and subgroups. Patients lymphocytes were activated in vitro in the presence or absence of Zn or Vit. D3 and then intracellular IL-17 production was assessed using flow cytometry. RESULTS: Zn and Vit. D were significantly decreased in HCV patients. Increasing disease severity leads to more reduction in Zn level opposed by increasing IL-17 level. Zn potently reduced IL-17 production in a dose-related fashion; however it did not exert any toxic effects. Although Vit. D apparently increases IL17 expression, it is unclear whether it is due to its toxic effect on cell count or lack of definite association between Vit. D and both IL-17 and disease severity. CONCLUSIONS: This study demonstrates that Zn modulates IL-17 expression and provides a rationale for evaluating this compound as a supplementary agent in the treatment of chronic HCV.


Assuntos
Hepatite C Crônica/sangue , Interleucina-17/sangue , Vitamina D/sangue , Zinco/sangue , Adulto , Idoso , Biomarcadores , Citocinas , Feminino , Hepacivirus/imunologia , Hepatite C Crônica/diagnóstico , Hepatite C Crônica/imunologia , Hepatite C Crônica/virologia , Humanos , Mediadores da Inflamação , Interleucina-17/biossíntese , Leucócitos Mononucleares/imunologia , Leucócitos Mononucleares/metabolismo , Contagem de Linfócitos , Masculino , Pessoa de Meia-Idade , Índice de Gravidade de Doença , Adulto Jovem
20.
PLoS One ; 10(7): e0133028, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26176696

RESUMO

BACKGROUND: The efficacy of first-generation protease inhibitor based triple-therapy against hepatitis C virus (HCV) infection is limited in HIV/HCV-coinfected patients with advanced liver fibrosis and non-response to previous peginterferon-ribavirin. These patients have a low chance of achieving a sustained virologic response (SVR) using first generation triple-therapy, with a success rate of only 20%. We investigated the efficacy and safety of lead-in therapy with intravenous silibinin followed by triple-therapy in this difficult-to-treat patient group. METHODOLOGY: Inclusion criteria were HIV/HCV coinfection with advanced liver fibrosis and documented previous treatment failure on peginterferon-ribavirin. The intervention was a lead-in therapy with intravenous silibinin 20 mg/kg/day for 14 days, followed by triple-therapy (peginterferon-ribavirin and telaprevir) for 12 weeks, and peginterferon-ribavirin alone for 36 weeks. Outcome measurements were HCV-RNA after silibinin lead-in and during triple-therapy, SVR data at week 12, and safety and tolerability of silibinin. RESULTS: We examined sixteen HIV/HCV-coinfected patients with previous peginterferon-ribavirin failure, of whom 14 had a fibrosis grade METAVIR ≥F3. All were on successful antiretroviral therapy. Median (IQR) HCV-RNA decline after silibinin therapy was 2.65 (2.1-2.8) log10 copies/mL. Fifteen of sixteen patients (94%) had undetectable HCV RNA at weeks 4 and 12, eleven patients (69%) showed end-of-treatment response (i.e., undetectable HCV-RNA at week 48), and ten patients (63%) reached SVR at week 12 (SVR 12). Six of the sixteen patients (37%) did not reach SVR 12: One patient had rapid virologic response (RVR) (i.e., undetectable HCV-RNA at week 4) but stopped treatment at week 8 due to major depression. Five patients had RVR, but experienced viral breakthroughs at week 21, 22, 25, or 32, or a relapse at week 52. The HIV RNA remained below the limit of detection in all patients during the complete treatment period. No serious adverse events and no significant drug-drug interactions were associated with silibinin. CONCLUSION: A lead-in with silibinin before triple-therapy was safe and highly effective in difficult-to-treat HIV/HCV coinfected patients, with a pronounced HCV-RNA decline during the lead-in phase, which translates into 63% SVR. An add-on of intravenous silibinin to standard of care HCV treatment is worth further exploration in selected difficult-to-treat patients. TRIAL REGISTRATION: ClinicalTrials.gov NCT01816490.


Assuntos
Terapia Antirretroviral de Alta Atividade , Antivirais/uso terapêutico , Infecções por HIV/tratamento farmacológico , Hepatite C Crônica/tratamento farmacológico , Cirrose Hepática/tratamento farmacológico , RNA Viral/antagonistas & inibidores , Silimarina/uso terapêutico , Adulto , Coinfecção , Esquema de Medicação , Feminino , HIV/efeitos dos fármacos , HIV/crescimento & desenvolvimento , Infecções por HIV/sangue , Infecções por HIV/patologia , Infecções por HIV/virologia , Hepacivirus/efeitos dos fármacos , Hepacivirus/crescimento & desenvolvimento , Hepatite C Crônica/sangue , Hepatite C Crônica/patologia , Hepatite C Crônica/virologia , Humanos , Injeções Intravenosas , Interferon-alfa/uso terapêutico , Cirrose Hepática/sangue , Cirrose Hepática/patologia , Cirrose Hepática/virologia , Masculino , Pessoa de Meia-Idade , Oligopeptídeos/uso terapêutico , Segurança do Paciente , Polietilenoglicóis/uso terapêutico , Estudos Prospectivos , Inibidores de Proteases/uso terapêutico , RNA Viral/sangue , Proteínas Recombinantes/uso terapêutico , Ribavirina/uso terapêutico , Silibina , Resultado do Tratamento , Carga Viral/efeitos dos fármacos
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