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1.
Liver Int ; 44(6): 1396-1408, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38451069

RESUMO

BACKGROUND: In recent years, age at liver transplantation (LT) has markedly increased. In the context of organ shortage, we investigated the impact of recipient age on post-transplantation mortality. METHODS: All adult patients who received a first LT between 2007 and 2017 were included in this cross-sectional study. Recipients' characteristics at the time of listing, donor and surgery data, post-operative complications and follow-up of vital status were retrieved from the national transplantation database. The impact of age on 5-year overall mortality post-LT was estimated using a flexible multivariable parametric model which was also used to estimate the association between age and 10-year net survival, accounting for expected age- and sex-related mortality. RESULTS: Among the 7610 patients, 21.4% were aged 60-65 years, and 15.7% over 65. With increasing age, comorbidities increased but severity of liver disease decreased. Older recipient age was associated with decreased observed survival at 5 years after LT (p < .001), with a significant effect particularly during the first 2 years. The linear increase in the risk of death associated with age does not allow any definition of an age's threshold for LT (p = .832). Other covariates associated with an increased risk of 5-year death were dialysis and mechanical ventilation at transplant, transfusion during LT, hepatocellular carcinoma and donor age. Ten-year flexible net survival analysis confirmed these results. CONCLUSION: Although there was a selection process for older recipients, increasing age at LT was associated with an increased risk of death, particularly in the first years after LT.


Assuntos
Transplante de Fígado , Humanos , Transplante de Fígado/mortalidade , Pessoa de Meia-Idade , Masculino , Feminino , França/epidemiologia , Idoso , Fatores Etários , Estudos Transversais , Adulto , Fatores de Risco , Complicações Pós-Operatórias/mortalidade , Análise de Sobrevida , Doença Hepática Terminal/cirurgia , Doença Hepática Terminal/mortalidade , Transplantados/estatística & dados numéricos
2.
HPB (Oxford) ; 26(7): 895-902, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38702254

RESUMO

BACKGROUND: Huge (>10 cm) hepatocellular carcinoma is burdened by elevated mortality due to its peculiar characteristics and delayed diagnosis. Liver resection is considered the gold standard although survival is poor. Recently, some different strategies have been evaluated to improve results in tumor recurrence and survival. The aim of this research is to identify which strategy offers the best results in terms of overall survival for resectable huge hepatocellular carcinoma. METHODS: A systematic review and network meta-analysis of 13 studies was conducted from PubMed, Embase, Scopus, Cochrane Library, and Web of Science databases including research comparing two or more treatments to manage huge hepatocellular carcinoma. Results were synthesized through forest plots and risk of bias assessed with the CINeMA framework as recommended. RESULTS: The association of liver resection and transcatheter arterial chemoembolization confers a significant improvement in survival compared to liver resection alone (HR: 0.55) while transcatheter arterial chemoembolization, radioembolization, and ethanol ablation alone were associated to decreased overall survival. Within-study bias, indirectness and incoherence were the domains mainly affected by concerns in risk of bias analysis. CONCLUSION: Multimodal treatment including liver resection and transcatheter arterial chemoembolization increases survival in patients with resectable huge hepatocellular carcinoma.


Assuntos
Carcinoma Hepatocelular , Quimioembolização Terapêutica , Hepatectomia , Neoplasias Hepáticas , Metanálise em Rede , Humanos , Carcinoma Hepatocelular/terapia , Carcinoma Hepatocelular/mortalidade , Carcinoma Hepatocelular/patologia , Terapia Combinada , Neoplasias Hepáticas/terapia , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/patologia , Fatores de Risco , Resultado do Tratamento
3.
JAMA ; 329(18): 1558-1566, 2023 05 09.
Artigo em Inglês | MEDLINE | ID: mdl-37159035

RESUMO

Importance: The benefits of prophylactic antibiotics for hospitalized patients with severe alcohol-related hepatitis are unclear. Objective: To determine the efficacy of amoxicillin-clavulanate, compared with placebo, on mortality in patients hospitalized with severe alcohol-related hepatitis and treated with prednisolone. Design, Setting, and Participants: Multicenter, randomized, double-blind clinical trial among patients with biopsy-proven severe alcohol-related hepatitis (Maddrey function score ≥32 and Model for End-stage Liver Disease [MELD] score ≥21) from June 13, 2015, to May 24, 2019, in 25 centers in France and Belgium. All patients were followed up for 180 days. Final follow-up occurred on November 19, 2019. Intervention: Patients were randomly assigned (1:1 allocation) to receive prednisolone combined with amoxicillin-clavulanate (n = 145) or prednisolone combined with placebo (n = 147). Main Outcome and Measures: The primary outcome was all-cause mortality at 60 days. Secondary outcomes were all-cause mortality at 90 and 180 days; incidence of infection, incidence of hepatorenal syndrome, and proportion of participants with a MELD score less than 17 at 60 days; and proportion of patients with a Lille score less than 0.45 at 7 days. Results: Among 292 randomized patients (mean age, 52.8 [SD, 9.2] years; 80 [27.4%] women) 284 (97%) were analyzed. There was no significant difference in 60-day mortality between participants randomized to amoxicillin-clavulanate and those randomized to placebo (17.3% in the amoxicillin-clavulanate group and 21.3% in the placebo group [P = .33]; between-group difference, -4.7% [95% CI, -14.0% to 4.7%]; hazard ratio, 0.77 [95% CI, 0.45-1.31]). Infection rates at 60 days were significantly lower in the amoxicillin-clavulanate group (29.7% vs 41.5%; mean difference, -11.8% [95% CI, -23.0% to -0.7%]; subhazard ratio, 0.62; [95% CI, 0.41-0.91]; P = .02). There were no significant differences in any of the remaining 3 secondary outcomes. The most common serious adverse events were related to liver failure (25 in the amoxicillin-clavulanate group and 20 in the placebo group), infections (23 in the amoxicillin-clavulanate group and 46 in the placebo group), and gastrointestinal disorders (15 in the amoxicillin-clavulanate group and 21 in the placebo group). Conclusion and Relevance: In patients hospitalized with severe alcohol-related hepatitis, amoxicillin-clavulanate combined with prednisolone did not improve 2-month survival compared with prednisolone alone. These results do not support prophylactic antibiotics to improve survival in patients hospitalized with severe alcohol-related hepatitis. Trial Registration: ClinicalTrials.gov Identifier: NCT02281929.


Assuntos
Combinação Amoxicilina e Clavulanato de Potássio , Antibacterianos , Antibioticoprofilaxia , Hepatite Alcoólica , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Combinação Amoxicilina e Clavulanato de Potássio/administração & dosagem , Combinação Amoxicilina e Clavulanato de Potássio/efeitos adversos , Combinação Amoxicilina e Clavulanato de Potássio/uso terapêutico , Antibacterianos/administração & dosagem , Antibacterianos/efeitos adversos , Antibacterianos/uso terapêutico , Doença Hepática Terminal/tratamento farmacológico , Doença Hepática Terminal/etiologia , Doença Hepática Terminal/mortalidade , Hepatite/tratamento farmacológico , Hepatite/etiologia , Hepatite/mortalidade , Prednisolona/efeitos adversos , Prednisolona/uso terapêutico , Índice de Gravidade de Doença , Antibioticoprofilaxia/efeitos adversos , Antibioticoprofilaxia/métodos , Antibioticoprofilaxia/mortalidade , Hepatite Alcoólica/tratamento farmacológico , Hepatite Alcoólica/etiologia , Hepatite Alcoólica/mortalidade , Hospitalização , Anti-Inflamatórios/efeitos adversos , Anti-Inflamatórios/uso terapêutico , Glucocorticoides/efeitos adversos , Glucocorticoides/uso terapêutico , Adulto
4.
J Hepatol ; 77(3): 710-722, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-35358616

RESUMO

BACKGROUND & AIMS: Hepatic insulin resistance in obesity and type 2 diabetes was recently associated with endoplasmic reticulum (ER)-mitochondria miscommunication. These contact sites (mitochondria-associated membranes: MAMs) are highly dynamic and involved in many functions; however, whether MAM dysfunction plays a causal role in hepatic insulin resistance and steatosis is not clear. Thus, we aimed to determine whether and how organelle miscommunication plays a role in the onset and progression of hepatic metabolic impairment. METHODS: We analyzed hepatic ER-mitochondria interactions and calcium exchange in a time-dependent and reversible manner in mice with diet-induced obesity. Additionally, we used recombinant adenovirus to express a specific organelle spacer or linker in mouse livers, to determine the causal impact of MAM dysfunction on hepatic metabolic alterations. RESULTS: Disruption of ER-mitochondria interactions and calcium exchange is an early event preceding hepatic insulin resistance and steatosis in mice with diet-induced obesity. Interestingly, an 8-week reversal diet concomitantly reversed hepatic organelle miscommunication and insulin resistance in obese mice. Mechanistically, disrupting structural and functional ER-mitochondria interactions through the hepatic overexpression of the organelle spacer FATE1 was sufficient to impair hepatic insulin action and glucose homeostasis. In addition, FATE1-mediated organelle miscommunication disrupted lipid-related mitochondrial oxidative metabolism and induced hepatic steatosis. Conversely, reinforcement of ER-mitochondria interactions through hepatic expression of a synthetic linker prevented diet-induced glucose intolerance after 4 weeks' overnutrition. Importantly, ER-mitochondria miscommunication was confirmed in the liver of obese patients with type 2 diabetes, and correlated with glycemia, HbA1c and HOMA-IR index. CONCLUSIONS: ER-mitochondria miscommunication is an early causal trigger of hepatic insulin resistance and steatosis, and can be reversed by switching to a healthy diet. Thus, targeting MAMs could help to restore metabolic homeostasis. LAY SUMMARY: The literature suggests that interactions between the endoplasmic reticulum and mitochondria could play a role in hepatic insulin resistance and steatosis during chronic obesity. In the present study, we reappraised the time-dependent regulation of hepatic endoplasmic reticulum-mitochondria interactions and calcium exchange, investigating reversibility and causality, in mice with diet-induced obesity. We also assessed the relevance of our findings to humans. We show that organelle miscommunication is an early causal trigger of hepatic insulin resistance and steatosis that can be improved by nutritional strategies.


Assuntos
Diabetes Mellitus Tipo 2 , Fígado Gorduroso , Resistência à Insulina , Hepatopatias , Animais , Cálcio/metabolismo , Comunicação , Proteínas de Ligação a DNA/metabolismo , Diabetes Mellitus Tipo 2/etiologia , Diabetes Mellitus Tipo 2/metabolismo , Retículo Endoplasmático/metabolismo , Fígado Gorduroso/etiologia , Fígado Gorduroso/metabolismo , Glucose/metabolismo , Humanos , Fígado/metabolismo , Hepatopatias/metabolismo , Camundongos , Mitocôndrias/metabolismo , Obesidade/complicações , Obesidade/metabolismo , Fatores de Transcrição/metabolismo
5.
Liver Int ; 42(6): 1330-1343, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-35488390

RESUMO

Excessive alcohol consumption is the leading cause of liver diseases in Western countries, especially in France. Alcohol-related liver disease (ARLD) is an extremely broad context and there remains much to accomplish in terms of identifying patients, improving prognosis and treatment, and standardising practices. The French Association for the Study of the Liver wished to organise guidelines together with the French Alcohol Society in order to summarise the best evidence available about several key clinical points in ARLD. These guidelines have been elaborated based on the level of evidence available in the literature and each recommendation has been analysed, discussed and voted by the panel of experts. They describe how patients with ARLD should be managed nowadays and discuss the main unsettled issues in the field.


Assuntos
Hepatopatias , Etanol , França/epidemiologia , Humanos , Hepatopatias/etiologia , Hepatopatias/terapia
6.
FASEB J ; 34(4): 5046-5060, 2020 04.
Artigo em Inglês | MEDLINE | ID: mdl-32043636

RESUMO

Nonalcoholic fatty liver disease is a chronic liver disease which is associated with obesity and insulin resistance. We investigated the implication of REDD1 (Regulated in development and DNA damage response-1), a stress-induced protein in the development of hepatic steatosis. REDD1 expression was increased in the liver of obese mice and morbidly obese patients, and its expression correlated with hepatic steatosis and insulin resistance in obese patients. REDD1 deficiency protected mice from the development of hepatic steatosis induced by high-fat diet (HFD) without affecting body weight gain and glucose intolerance. This protection was associated with a decrease in the expression of lipogenic genes, SREBP1c, FASN, and SCD-1 in liver of HFD-fed REDD1-KO mice. Healthy mitochondria are crucial for the adequate control of lipid metabolism and failure to remove damaged mitochondria is correlated with liver steatosis. Expression of markers of autophagy and mitophagy, Beclin, LC3-II, Parkin, BNIP3L, was enhanced in liver of HFD-fed REDD1-KO mice. The number of mitochondria showing colocalization between LAMP2 and AIF was increased in liver of HFD-fed REDD1-KO mice. Moreover, mitochondria in liver of REDD1-KO mice were smaller than in WT. These results are correlated with an increase in PGC-1α and CPT-1 expression, involved in fatty acid oxidation. In conclusion, loss of REDD1 protects mice from the development of hepatic steatosis.


Assuntos
Hepatopatia Gordurosa não Alcoólica/genética , Fatores de Transcrição/deficiência , Adulto , Animais , Autofagia , Carnitina O-Palmitoiltransferase/genética , Carnitina O-Palmitoiltransferase/metabolismo , Células Cultivadas , Dieta Hiperlipídica/efeitos adversos , Ácido Graxo Sintase Tipo I/genética , Ácido Graxo Sintase Tipo I/metabolismo , Feminino , Deleção de Genes , Humanos , Masculino , Camundongos , Mitofagia , Hepatopatia Gordurosa não Alcoólica/etiologia , Hepatopatia Gordurosa não Alcoólica/metabolismo , Coativador 1-alfa do Receptor gama Ativado por Proliferador de Peroxissomo/genética , Coativador 1-alfa do Receptor gama Ativado por Proliferador de Peroxissomo/metabolismo , Estearoil-CoA Dessaturase/genética , Estearoil-CoA Dessaturase/metabolismo , Proteína de Ligação a Elemento Regulador de Esterol 1/genética , Proteína de Ligação a Elemento Regulador de Esterol 1/metabolismo , Fatores de Transcrição/genética , Fatores de Transcrição/metabolismo
7.
Int J Colorectal Dis ; 35(11): 2041-2048, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-32627072

RESUMO

PURPOSE: Evaluate the impact of fecal incontinence (FI) and chronic constipation (CC) on the quality of life (QoL) in a large population and determine if a threshold of symptom scores was associated with alterations to QoL. METHODS: A total of 422 outpatients with FI (n = 186), CC (n = 186), and mixed FI-CC (n = 50) referred for anorectal manometry were included prospectively. All patients completed a set of questionnaires to evaluate the severity of FI and CC (respectively Jorge and Wexner and KESS scores) and their impact on QoL (Gastrointestinal Quality of Life Index (GIQLI)). RESULTS: The study population included 81.8% women. The QoL was altered to the same degree for both FI and CC, with significant more marked impairments in patients with mixed FI-CC (median GIQLI: 91 (71-108) vs. 91 (73-108) vs. 81 (57-97) respectively, p = 0.05). The symptom severity significantly but weekly correlated with the GIQLI score (r2 = - 0.454 for FI and r2 = - 0.483 for CC, p < 0.001). Thus, the large dispersion of the data flawed the identification of a threshold for symptom severity that could predict major impairment to QoL. CONCLUSION: The QoL was equally altered for FI and CC. Although the symptom score severity was slightly but significantly associated with alterations to QoL, it was not possible to determine a threshold for symptom scores that predict an alteration to QoL. Therefore, the evaluation of QoL in parallel to the assessment of the symptom score is required to endorse the entire spectrum of the severity of CC or FI.


Assuntos
Incontinência Fecal , Qualidade de Vida , Constipação Intestinal , Feminino , Humanos , Masculino , Índice de Gravidade de Doença , Inquéritos e Questionários
8.
Gastroenterology ; 155(6): 1816-1827.e9, 2018 12.
Artigo em Inglês | MEDLINE | ID: mdl-30144431

RESUMO

BACKGROUND & AIMS: There is debate over the effects of long-term oral fluoroquinolone therapy in patients with advanced cirrhosis. We performed a randomized controlled trial to evaluate the effects of long-term treatment with the fluoroquinolone norfloxacin on survival of patients with cirrhosis. METHODS: We performed a double-blind trial of 291 patients with Child-Pugh class C cirrhosis who had not received recent fluoroquinolone therapy. The study was performed at 18 clinical sites in France from April 2010 through November 2014. Patients were randomly assigned to groups given 400 mg norfloxacin (n = 144) or placebo (n = 147) once daily for 6 months. Patients were evaluated monthly for the first 6 months and at 9 months and 12 months thereafter. The primary outcome was 6-month mortality, estimated by the Kaplan-Meier method, censoring spontaneous bacterial peritonitis, liver transplantation, or loss during follow-up. RESULTS: The Kaplan-Meier estimate for 6-month mortality was 14.8% for patients receiving norfloxacin and 19.7% for patients receiving placebo (P = .21). In competing risk analysis that took liver transplantation into account, the cumulative incidence of death at 6 months was significantly lower in the norfloxacin group than in the placebo group (subdistribution hazard ratio, 0.59; 95% confidence interval, 0.35-0.99). The subdistribution hazard ratio for death at 6 months with norfloxacin vs placebo was 0.35 (95% confidence interval, 0.13-0.93) in patients with ascites fluid protein concentrations <15 g/L and 1.39 (95% confidence interval, 0.42-4.57) in patients with ascites fluid protein concentrations ≥15 g/L. Norfloxacin significantly decreased the incidence of any and Gram-negative bacterial infections without increasing infections caused by Clostridium difficile or multiresistant bacteria. CONCLUSIONS: In a randomized controlled trial of patients with advanced cirrhosis without recent fluoroquinolone therapy, norfloxacin did not reduce 6-month mortality, estimated by the Kaplan-Meier method. Norfloxacin, however, appears to increase survival of patients with low ascites fluid protein concentrations. ClinicalTrials.gov ID: NCT01037959.


Assuntos
Antibacterianos/administração & dosagem , Cirrose Hepática/tratamento farmacológico , Cirrose Hepática/mortalidade , Norfloxacino/administração & dosagem , Ascite/etiologia , Ascite/mortalidade , Método Duplo-Cego , Feminino , França/epidemiologia , Infecções por Bactérias Gram-Negativas/tratamento farmacológico , Infecções por Bactérias Gram-Negativas/mortalidade , Humanos , Incidência , Estimativa de Kaplan-Meier , Cirrose Hepática/complicações , Masculino , Pessoa de Meia-Idade , Modelos de Riscos Proporcionais , Estudos Prospectivos , Fatores de Tempo , Resultado do Tratamento
9.
Liver Transpl ; 25(3): 500-509, 2019 03.
Artigo em Inglês | MEDLINE | ID: mdl-30380197

RESUMO

The growing number of patients on waiting lists for liver transplantation and the shortage of organs have forced many centers to adopt extended criteria for graft selection, moving the limit of acceptance for marginal livers. Steatotic grafts that were, in the past, considered strictly unacceptable for transplantation because of the high risk of early nonfunction are now considered as a potential resource for organ implementation. Several methods to diagnose, measure, classify, and stage steatosis exist, but none can be considered qualitatively and quantitatively "the ideal method" to date. Clinical, biological, and imaging data can be very helpful to estimate graft steatosis, but histology still remains the gold standard. There is an increasing need for rapid and reliable tools to assess graft steatosis. Herein, we present a comprehensive review of the approaches that are currently used to quantify steatosis in liver grafts.


Assuntos
Seleção do Doador/métodos , Doença Hepática Terminal/cirurgia , Fígado Gorduroso/diagnóstico , Transplante de Fígado/normas , Aloenxertos/diagnóstico por imagem , Aloenxertos/patologia , Aloenxertos/provisão & distribuição , Seleção do Doador/normas , Fígado Gorduroso/sangue , Fígado Gorduroso/patologia , Humanos , Fígado/diagnóstico por imagem , Fígado/patologia , Testes de Função Hepática , Imageamento por Ressonância Magnética , Índice de Gravidade de Doença , Tomografia Computadorizada por Raios X , Ultrassonografia
10.
Hepatology ; 68(2): 515-532, 2018 08.
Artigo em Inglês | MEDLINE | ID: mdl-29457838

RESUMO

Endoplasmic reticulum (ER) stress is activated in nonalcoholic fatty liver disease (NAFLD), raising the possibility that ER stress-dependent metabolic dysfunction, inflammation, and cell death underlie the transition from steatosis to steatohepatitis (nonalcoholic steatohepatitis; NASH). B-cell lymphoma 2 (BCL2)-associated X protein (Bax) inhibitor-1 (BI-1), a negative regulator of the ER stress sensor, inositol-requiring enzyme 1 alpha (IRE1α), has yet to be explored in NAFLD as a hepatoprotective agent. We hypothesized that the genetic ablation of BI-1 would render the liver vulnerable to NASH because of unrestrained IRE1α signaling. ER stress was induced in wild-type and BI-1-/- mice acutely by tunicamycin (TM) injection (1 mg/kg) or chronically by high-fat diet (HFD) feeding to determine NAFLD phenotype. Livers of TM-treated BI-1-/- mice showed IRE1α-dependent NOD-like receptor family, pyrin domain containing 3 (NLRP3) inflammasome activation, hepatocyte death, fibrosis, and dysregulated lipid homeostasis that led to liver failure within a week. The analysis of human NAFLD liver biopsies revealed BI-1 down-regulation parallel to the up-regulation of IRE1α endoribonuclease (RNase) signaling. In HFD-fed BI-1-/- mice that presented NASH and type 2 diabetes, exaggerated hepatic IRE1α, X-box binding protein 1 (XBP1), and C/EBP homologous protein (CHOP) expression was linked to activated NLRP3 inflammasome and caspase-1/-11. Rises in interleukin (IL)-1ß, IL-6, monocyte chemoattractant protein 1 (MCP1), chemokine (C-X-C motif) ligand 1 (CXCL1), and alanine transaminase (ALT)/aspartate transaminase (AST) levels revealed significant inflammation and injury, respectively. Pharmacological inhibition of IRE1α RNase activity with the small molecules, STF-083010 or 4µ8c, was evaluated in HFD-induced NAFLD. In BI-1-/- mice, either treatment effectively counteracted IRE1α RNase activity, improving glucose tolerance and rescuing from NASH. The hepatocyte-specific role of IRE1α RNase activity in mediating NLRP3 inflammasome activation and cell death was confirmed in primary mouse hepatocytes by IRE1α axis knockdown or its inhibition with STF-083010 or 4µ8c. CONCLUSION: Targeting IRE1α-dependent NLRP3 inflammasome signaling with pharmacological agents or by BI-1 may represent a tangible therapeutic strategy for NASH. (Hepatology 2018).


Assuntos
Proteínas Reguladoras de Apoptose/metabolismo , Estresse do Retículo Endoplasmático/genética , Endorribonucleases/metabolismo , Proteínas de Membrana/metabolismo , Hepatopatia Gordurosa não Alcoólica/metabolismo , Proteínas Serina-Treonina Quinases/metabolismo , Animais , Técnicas de Cultura de Células , Morte Celular , Citocinas/metabolismo , Humanos , Immunoblotting , Inflamassomos/metabolismo , Fígado/metabolismo , Fígado/patologia , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Proteína 3 que Contém Domínio de Pirina da Família NLR/metabolismo , Reação em Cadeia da Polimerase em Tempo Real , Transdução de Sinais/genética
11.
J Hepatol ; 66(6): 1158-1165, 2017 06.
Artigo em Inglês | MEDLINE | ID: mdl-28088581

RESUMO

BACKGROUND & AIMS: Chronic liver diseases (CLD) are common, and are therefore mainly managed by non-hepatologists. These physicians lack access to the best non-invasive tests of liver fibrosis, and consequently cannot accurately determine the disease severity. Referral to a hepatologist is then needed. We aimed to implement an algorithm, comprising a new first-line test usable by all physicians, for the detection of advanced liver fibrosis in all CLD patients. METHODS: Diagnostic study: 3754 CLD patients with liver biopsy were 2:1 randomized into derivation and validation sets. Prognostic study: longitudinal follow-up of 1275 CLD patients with baseline fibrosis tests. RESULTS: Diagnostic study: the easy liver fibrosis test (eLIFT), an "at-a-glance" sum of points attributed to age, gender, gamma-glutamyl transferase, aspartate aminotransferase (AST), platelets and prothrombin time, was developed for the diagnosis of advanced fibrosis. In the validation set, eLIFT and fibrosis-4 (FIB4) had the same sensitivity (78.0% vs. 76.6%, p=0.470) but eLIFT gave fewer false positive results, especially in patients ≥60years old (53.8% vs. 82.0%, p<0.001), and was thus more suitable as screening test. FibroMeter with vibration controlled transient elastography (VCTE) was the most accurate among the eight fibrosis tests evaluated. The sensitivity of the eLIFT-FMVCTE algorithm (first-line eLIFT, second-line FibroMeterVCTE) was 76.1% for advanced fibrosis and 92.1% for cirrhosis. Prognostic study: patients diagnosed as having "no/mild fibrosis" by the algorithm had excellent liver-related prognosis with thus no need for referral to a hepatologist. CONCLUSION: The eLIFT-FMVCTE algorithm extends the detection of advanced liver fibrosis to all CLD patients and reduces unnecessary referrals of patients without significant CLD to hepatologists. LAY SUMMARY: Blood fibrosis tests and transient elastography accurately diagnose advanced liver fibrosis in the large population of patients having chronic liver disease, but these non-invasive tests are only currently available in specialized centers. We have developed an algorithm including the easy liver fibrosis test (eLIFT), a new simple and widely available blood test. It is used as a first-line procedure that selects at-risk patients who need further evaluation with the FibroMeterVCTE, an accurate fibrosis test combining blood markers and transient elastography result. This new algorithm, called the eLIFT-FMVCTE, accurately identifies the patients with advanced chronic liver disease who need referral to a specialist, and those with no or mild liver lesions who can remain under the care of their usual physician. CLINICAL TRIAL REGISTRATION: No registration (analysis of pooled data from previously published diagnostic studies).


Assuntos
Algoritmos , Cirrose Hepática/diagnóstico , Adulto , Biomarcadores/sangue , Biópsia , Estudos Transversais , Técnicas de Imagem por Elasticidade , Feminino , Seguimentos , Testes Hematológicos , Humanos , Estimativa de Kaplan-Meier , Cirrose Hepática/sangue , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Prognóstico
12.
J Hepatol ; 67(2): 328-338, 2017 08.
Artigo em Inglês | MEDLINE | ID: mdl-28323124

RESUMO

BACKGROUND & AIMS: Cluster of differentiation (CD)44 regulates adipose tissue inflammation in obesity and hepatic leukocyte recruitment in a lithogenic context. However, its role in hepatic inflammation in a mouse model of steatohepatitis and its relevance in humans have not yet been investigated. We aimed to evaluated the contribution of CD44 to non-alcoholic steatohepatitis (NASH) development and liver injury in mouse models and in patients at various stages of non-alcoholic fatty liver disease (NAFLD) progression. METHODS: The role of CD44 was evaluated in CD44-/- mice and after injections of an αCD44 antibody in wild-type mice challenged with a methionine- and choline-deficient diet (MCDD). In obese patients, hepatic CD44 (n=30 and 5 NASH patients with a second liver biopsy after bariatric surgery) and serum sCD44 (n=64) were evaluated. RESULTS: Liver inflammation (including inflammatory foci number, macrophage and neutrophil infiltration and CCL2/CCR2 levels), liver injury and fibrosis strongly decreased in CD44-/- mice compared to wild-type mice on MCDD. CD44 deficiency enhanced the M2 polarization and strongly decreased the activation of macrophages by lipopolysaccharide (LPS), hepatocyte damage-associated molecular patterns (DAMPs) and saturated fatty acids. Neutralization of CD44 in mice with steatohepatitis strongly decreased the macrophage infiltration and chemokine ligand (CCL)2 expression with a partial correction of liver inflammation and injury. In obese patients, hepatic CD44 was strongly upregulated in NASH patients (p=0.0008) and correlated with NAFLD activity score (NAS) (p=0.001), ballooning (p=0.003), alanine transaminase (p=0.005) and hepatic CCL2 (p<0.001) and macrophage marker CD68 (p<0.001) expression. Correction of NASH was associated with a strong decrease in liver CD44+ cells. Finally, the soluble form of CD44 increased with severe steatosis (p=0.0005) and NASH (p=0.007). CONCLUSION: Human and experimental data suggest that CD44 is a marker and key player of hepatic inflammation and its targeting partially corrects NASH. LAY SUMMARY: Human and experimental data suggest that CD44, a cellular protein mainly expressed in immune cells, is a marker and key player of non-alcoholic steatohepatitis (NASH). Indeed, CD44 enhances the non-alcoholic fatty liver (NAFL) (hepatic steatosis) to NASH progression by regulating hepatic macrophage polarization (pro-inflammatory phenotype) and infiltration (macrophage motility and the MCP1/CCL2/CCR2 system). Targeting CD44 partially corrects NASH, making it a potential therapeutic strategy.


Assuntos
Receptores de Hialuronatos/metabolismo , Hepatopatia Gordurosa não Alcoólica/etiologia , Adulto , Animais , Cirurgia Bariátrica , Biomarcadores/metabolismo , Modelos Animais de Doenças , Feminino , Humanos , Receptores de Hialuronatos/sangue , Receptores de Hialuronatos/deficiência , Receptores de Hialuronatos/genética , Fígado/imunologia , Fígado/metabolismo , Fígado/patologia , Macrófagos/imunologia , Macrófagos/metabolismo , Macrófagos/patologia , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Camundongos Knockout , Pessoa de Meia-Idade , Hepatopatia Gordurosa não Alcoólica/metabolismo , Hepatopatia Gordurosa não Alcoólica/patologia , Obesidade Mórbida/sangue , Obesidade Mórbida/metabolismo , Obesidade Mórbida/cirurgia , Regulação para Cima
13.
J Hepatol ; 65(4): 711-718, 2016 10.
Artigo em Inglês | MEDLINE | ID: mdl-27262758

RESUMO

BACKGROUND & AIMS: HCV recurrence remains a major issue in the liver transplant field, as it has a negative impact on both graft and patient survival. The purpose of this study was to investigate the efficacy and safety of treating HCV recurrence with sofosbuvir (SOF) and daclatasvir (DCV) combination therapy. METHODS: From October 2013 to March 2015, 559 liver recipients were enrolled in the prospective multicentre France REcherche Nord&Sud Sida-hiv Hépatites (ANRS) Compassionate use of Protease Inhibitors in viral C Liver Transplantation cohort. We selected 137 patients with an HCV recurrence receiving SOF and DCV, whatever the genotype or fibrosis stage. The use of ribavirin and the duration of therapy were at the investigator's discretion. The primary efficacy end point was a sustained virological response (SVR) 12weeks after the end of treatment. RESULTS: The SVR rate 12weeks after completing treatment was 96% under the intention-to treat analysis and 99% when excluding non-virological failures. Only two patients experienced a virological failure. The serious adverse event (SAE) rate reached 17.5%. Four patients (3%) stopped their treatment prematurely because of SAEs. Anaemia was the most common AE, with significantly more cases in the ribavirin group (56% vs. 18%; p<0.0001). A slight but significant reduction in creatinine clearance was reported. No clinically relevant drug-drug interactions were noted, but 52% of patients required a change to the dosage of immunosuppressive drugs. CONCLUSIONS: Treatment with SOF plus DCV was associated with a high SVR12 and low rates of serious adverse events among liver recipients with HCV recurrence. LAY SUMMARY: The recurrence of hepatitis C used to be the first cause of graft failure in infected liver transplanted recipients. Our study demonstrates the great efficacy of one combination of new all-oral direct-acting antiviral, sofosbuvir and daclatasvir, to treat the recurrence of hepatitis C on the graft. Ninety-six per cent of recipients were cured. The safety profile of this combination seemed to be good, especially no relevant drug-drug interaction with immunosuppressive drugs.


Assuntos
Hepatite C , Antivirais , Ensaios de Uso Compassivo , Quimioterapia Combinada , França , Hepacivirus , Humanos , Estudos Prospectivos , Ribavirina , Sofosbuvir , Resultado do Tratamento
14.
Am J Gastroenterol ; 111(10): 1402-1409, 2016 10.
Artigo em Inglês | MEDLINE | ID: mdl-27619833

RESUMO

OBJECTIVES: We aimed to assess the performance of a new strip (Periscreen) for the rapid diagnosis of spontaneous bacterial peritonitis (SBP). METHODS: Ascitic fluid (AF) of cirrhotic patients hospitalized between March 2014 and August 2015 was independently tested by two readers using the new strip, which has four colorimetric graduations (negative, trace, small, and large). SBP was diagnosed on neutrophils in ascites>250/mm3. Ascites not related to portal hypertension were excluded. RESULTS: Overall, 649 patients from 21 French centers were included and 1,402 AF (803 AF samples from 315 outpatients and 599 samples from 334 inpatients) were assessed. Eighty-four AF samples (17 AF in 9 outpatients and 67 AF in 31 inpatients) were diagnosed as SBP. The prevalence of SBP was 6% (2.1% in outpatients vs. 11.2% in inpatients; P<0.001) and 7.2% in patients with symptoms suggestive of SBP (3% in outpatients vs. 11.3% in inpatients; P<0.001). The κ value for inter-reader agreement was 0.81 (95% confidence interval: 0.77-0.84) when using the "trace" threshold. Considering discordant results (n=131) as positive to interpret the diagnostic performance of the strip at the "trace" threshold, sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) were 91.7, 57.1, 12.0, and 99.1%, respectively. At this "trace" threshold, sensitivity and NPV were both 100% in outpatients, and 89.5 and 97.9% in inpatients, respectively. At the "small" threshold, sensitivity, specificity, PPV and NPV were 81.0, 85.9, 25.9 and 98.7%, respectively. CONCLUSIONS: The Periscreen strip is a rapid and highly efficient tool for excluding SBP in the outpatient setting.


Assuntos
Ascite/etiologia , Líquido Ascítico/citologia , Infecções Bacterianas/diagnóstico , Leucócitos Mononucleares/citologia , Cirrose Hepática/complicações , Peritonite/diagnóstico , Idoso , Assistência Ambulatorial , Infecções Bacterianas/etiologia , Colorimetria , Feminino , Humanos , Contagem de Leucócitos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Neutrófilos/citologia , Paracentese , Peritonite/etiologia , Valor Preditivo dos Testes , Estudos Prospectivos , Sensibilidade e Especificidade
15.
Liver Int ; 36(3): 328-33, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26179015

RESUMO

BACKGROUND & AIMS: Hepatitis E virus (HEV) genotypes 3 and 4 cause sporadic cases of infection in developed countries. Being elderly and having an underlying liver disease are the main risk factors for death in this population. Chronic infection has been described in immunocompromised patients. Ribavirin is now the antiviral treatment of choice in solid-organ-transplant recipients with chronic HEV infection. We hypothesized that early short-term treatment of acute HEV infection may be useful for patients with risk factors or undergoing chemotherapy. METHODS: Between July 2010 and January 2014, 21 patients diagnosed with acute HEV infection were treated with ribavirin, at 600-800 mg/day for up to 3 months. All serum samples were positive for HEV RNA. RESULTS: Nine patients were treated for severe hepatitis. Six patients were aged >70 years. Four patients were receiving an immunosuppressive therapy for an autoimmune disease and two patients were undergoing chemotherapy for a malignancy. Two patients received a fixed-dose regimen. For all other patients, ribavirin was stopped when HEV became undetectable in the serum. The median duration of ribavirin treatment was 26 days. Two patients developed severe anaemia. Two patients with encephalopathy died. One patient relapsed transiently. All patients were cleared of HEV and regained normalized liver-enzyme levels. Immunosuppressive treatment and chemotherapy could be resumed. CONCLUSIONS: Treatment of acute HEV infection using ribavirin seems safe and effective. Short-term treatment tailored to viraemia may be the best regimen for this indication.


Assuntos
Antivirais/administração & dosagem , Vírus da Hepatite E/efeitos dos fármacos , Hepatite E/tratamento farmacológico , Infecções Oportunistas/tratamento farmacológico , Ribavirina/administração & dosagem , Doença Aguda , Idoso , Idoso de 80 Anos ou mais , Antivirais/efeitos adversos , Esquema de Medicação , Feminino , França , Genótipo , Hepatite E/diagnóstico , Hepatite E/imunologia , Hepatite E/mortalidade , Vírus da Hepatite E/genética , Vírus da Hepatite E/imunologia , Humanos , Hospedeiro Imunocomprometido , Masculino , Pessoa de Meia-Idade , Infecções Oportunistas/diagnóstico , Infecções Oportunistas/imunologia , Infecções Oportunistas/mortalidade , RNA Viral/sangue , Recidiva , Indução de Remissão , Ribavirina/efeitos adversos , Índice de Gravidade de Doença , Fatores de Tempo , Resultado do Tratamento , Carga Viral
16.
J Hepatol ; 62(4): 822-30, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25463545

RESUMO

BACKGROUND & AIMS: Albumin infusion improves renal function and survival in cirrhotic patients with spontaneous bacterial peritonitis (SBP) but its efficacy in other types of infections remains unknown. We investigated this issue through a multicenter randomized controlled trial. METHODS: A total of 193 cirrhotic patients with a Child-Pugh score greater than 8 and sepsis unrelated to SBP were randomly assigned to receive antibiotics plus albumin (1.5 g/kg on day 1 and 1g/kg on day 3; albumin group [ALB]: n=96) or antibiotics alone (control group [CG]: n=97). The primary endpoint was the 3-month renal failure rate (increase in creatinine ⩾50% to reach a final value ⩾133 µmol/L). The secondary endpoint was 3-month survival rate. RESULTS: Forty-seven (24.6%) patients died (ALB: n=27 vs. CG: n=20; 3-month survival: 70.2% vs. 78.3%; p=0.16). Albumin infusion delayed the occurrence of renal failure (mean time to onset, ALB: 29.0 ± 21.8 vs. 11.7 ± 9.1 days, p=0.018) but the 3-month renal failure rate was similar (ALB: 14.3% vs. CG: 13.5%; p=0.88). By multivariate analysis, MELD score (p<0.0001), pneumonia (p=0.0041), hyponatremia (p=0.031) and occurrence of renal failure (p<0.0001) were predictors of death. Of note, pulmonary edema developed in 8/96 (8.3%) patients in the albumin group of whom two died, one on the day and the other on day 33 following albumin infusion. CONCLUSIONS: In cirrhotic patients with infections other than SBP, albumin infusion delayed onset of renal failure but did not improve renal function or survival at 3 months. Infusion of large amounts of albumin should be cautiously administered in the sickest cirrhotic patients.


Assuntos
Albuminas/administração & dosagem , Antibacterianos/administração & dosagem , Infecções Bacterianas , Cirrose Hepática/complicações , Insuficiência Renal , Sepse , Adulto , Infecções Bacterianas/tratamento farmacológico , Infecções Bacterianas/etiologia , Feminino , Humanos , Infusões Intravenosas , Testes de Função Renal/métodos , Testes de Função Hepática , Masculino , Pessoa de Meia-Idade , Insuficiência Renal/diagnóstico , Insuficiência Renal/etiologia , Insuficiência Renal/prevenção & controle , Sepse/tratamento farmacológico , Sepse/etiologia , Taxa de Sobrevida , Resultado do Tratamento
18.
Alcohol Clin Exp Res ; 39(6): 1027-33, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25941109

RESUMO

BACKGROUND: Among its pleiotropic effects, vitamin D may protect the liver from fibrosis and/or inflammation. However, the impact of vitamin D on liver pathology in hepatitis C remains unclear, and very few studies including alcoholic patients with liver pathologies have been performed. Here we compared the levels of 25-OH vitamin D in the blood of alcoholic patients with the occurrence of alcoholic steatohepatitis (ASH) or bridging fibrosis. METHODS: One hundred and one alcoholic patients were included. All the patients received a liver biopsy, and the levels of 25-OH vitamin D were evaluated with the Liaison 25-OH vitamin D assay. Logistic regression analyses were performed to obtain predictive factors of liver histology. RESULTS: Among alcoholic patients, 40.6% presented ASH and 39.6% presented bridging fibrosis. A severe deficiency in 25-OH vitamin D (<10 ng/ml) was seen in 60.4% of patients. This deficiency was frequent in patients with ASH (85.4%) and in those with bridging fibrosis (80%) but was independently associated only with ASH (odds ratio = 8.46 [95% confidence interval 2.05 to 34.89], p = 0.003). CONCLUSIONS: In alcoholic patients, a severe deficiency in 25-OH vitamin D was independently associated with the occurrence of ASH.


Assuntos
Fígado Gorduroso Alcoólico/complicações , Fígado Gorduroso Alcoólico/epidemiologia , Deficiência de Vitamina D/complicações , Deficiência de Vitamina D/epidemiologia , Adulto , Alcoolismo/sangue , Alcoolismo/complicações , Calcifediol/sangue , Fígado Gorduroso Alcoólico/sangue , Feminino , Fibrose/complicações , Fibrose/epidemiologia , França/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , Deficiência de Vitamina D/sangue
19.
J Hepatol ; 60(5): 962-8, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-24480619

RESUMO

BACKGROUND & AIMS: The first studies comparing covered stents (CS) and bare stents (BS) to achieve Transjugular Intrahepatic Portosystemic Shunt (TIPS) were in favor of CS, but only one randomized study has been performed. Our aim was to compare the primary patency of TIPS performed with CS and BS. METHODS: The study was planned as a multicenter, pragmatic (with centers different in size and experience), randomized, single-blinded (with blinding of patients only), parallel group trial. The primary endpoint was TIPS dysfunction defined as either a portocaval gradient ⩾12mmHg, or a stent lumen stenosis ⩾50%. A transjugular angiography with portosystemic pressure gradient measurement was scheduled every 6months after TIPS insertion. RESULTS: 137 patients were randomized: 66 to receive CS, and 71 BS. Patients who were found to have a hepato-cellular carcinoma, or whose procedure was cancelled were excluded, giving a sample of 129 patients (62 vs. 67). Median follow-up for CS and BS were 23.6 and 21.8months, respectively. Compared to BS, the risk of TIPS dysfunction with CS was 0.60 95% CI [0.38-0.96], (p=0.032). The 2-year rate of shunt dysfunction was 44.0% for CS vs. 63.6% for BS. Early post TIPS complications (22.4% vs. 34.9%), risk of hepatic encephalopathy (0.89 [0.53-1.49]) and 2-year survival (70% vs. 67.5%) did not differ in the two groups. The 2-year cost/patient was 20k€ [15.9-27.5] for CS vs. 23.4k€ [18-37] for BS (p=0.52). CONCLUSIONS: CS provided a significant 39% reduction in dysfunction compared to BS. We did not observe any significant difference with regard to hepatic encephalopathy or death.


Assuntos
Varizes Esofágicas e Gástricas/cirurgia , Derivação Portossistêmica Transjugular Intra-Hepática/instrumentação , Stents , Idoso , Ascite/etiologia , Ascite/cirurgia , Carcinoma Hepatocelular/etiologia , Varizes Esofágicas e Gástricas/etiologia , Feminino , Encefalopatia Hepática/etiologia , Humanos , Hipertensão Portal/complicações , Hipertensão Portal/cirurgia , Estimativa de Kaplan-Meier , Neoplasias Hepáticas/etiologia , Transplante de Fígado , Masculino , Pessoa de Meia-Idade , Derivação Portossistêmica Transjugular Intra-Hepática/efeitos adversos , Derivação Portossistêmica Transjugular Intra-Hepática/métodos , Recidiva , Método Simples-Cego , Stents/efeitos adversos , Resultado do Tratamento
20.
Surg Endosc ; 28(2): 592-602, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-24196540

RESUMO

BACKGROUND: Sleeve gastrectomy (SG) has become a popular bariatric procedure. The mechanisms responsible for weight loss and improvement of metabolic disturbances have still not been completely elucidated. We investigated the effect of SG on body weight, adipose tissue depots, glucose tolerance, and liver steatosis independent of reduced caloric intake in high-fat-diet-induced obese mice. METHODS: C57BI/6 J mice fed a high fat diet (45 %) for 33 weeks were divided into three groups: sleeve gastrectomy (SG, 13 mice), sham-operated ad libitum fed (SALF, 13 mice) and sham-operated pair fed (PFS, 13 mice). The animals were humanely killed 23 days after surgery. RESULTS: In SG mice, food intake was reduced transiently, but weight loss was significant and persistent compared to controls (SG vs. PFS, P < 0.05; PFS vs. SALF, P < 0.05). SG mice showed improved glucose tolerance and lower levels of liver steatosis compared with controls (area under the curve, SG vs. PFS, P < 0.01; PFS vs. SALF, P < 0.05) (liver steatosis, SG vs. PFS, P < 0.05; PFS vs. SALF, P < 0.01). This was associated with a decrease in the ratios of the weight of pancreas, epididymal and inguinal adipose tissues to body weight, and an increase in the ratio of brown adipose tissue weight to body weight. Epididymal adipose tissue was also infiltrated by fewer activated T cells and by more anti-inflammatory regulatory T cells. Serum levels of fasting acyl ghrelin were still significantly decreased 3 weeks after surgery in SG mice compared to PFS mice (P < 0.05). CONCLUSIONS: Reduced white adipose tissue inflammation, modification of adipose tissue development (brown vs. white adipose tissue), and ectopic fat are potential mechanisms that may account for the reduced caloric intake independent effects of SG.


Assuntos
Tecido Adiposo Branco/patologia , Ingestão de Energia/fisiologia , Gastrectomia/métodos , Gastroplastia/métodos , Inflamação/patologia , Obesidade/cirurgia , Redução de Peso/fisiologia , Animais , Dieta Hiperlipídica/efeitos adversos , Modelos Animais de Doenças , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Obesidade/etiologia
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