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1.
Indian J Med Res ; 145(4): 543-550, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-28862188

RESUMO

BACKGROUND & OBJECTIVES: One of the multiple factors contributing to virological response in chronic hepatitis C (CHC) is interferon-gamma-inducible protein-10 (IP-10). Its level reflects the status of interferon-stimulated genes, which in turn is associated with virological response to antiviral therapy. The aim of this study was to evaluate the role of serum IP-10 levels on sustained virological response (SVR) and the association of this parameter with insulin resistance (IR) and liver histology. METHODS: Two hundred and three consecutive biopsy proven CHC patients were included in the study. Serum levels of IP-10 were determined using ELISA method. IR was evaluated by homeostasis model assessment-IR (HOMA-IR). Histological features were assessed invasively by liver biopsy and noninvasively using FibroTest, ActiTest and SteatoTest. Predictive factors for SVR and their interrelations were assessed. RESULTS: A cut-off value for IP-10 of 392 pg/ml was obtained to discriminate between responders and non-responders. SVR was obtained in 107 patients (52.70%). Area under the receiver operating characteristic curve for SVR was 0.875 with a sensitivity of 91.6 per cent, specificity 74.7 per cent, positive predictive value 80.3 per cent and negative predictive value 88.7 per cent. Higher values of IP-10 were associated with increasing stages of fibrosis (P<0.01) and higher grades of inflammation (P=0.02, P=0.07) assessed morphologically and noninvasively through FibroTest and ActiTest. Significant steatosis and IR were also associated with increased levels of IP-10 (P=0.01 and P=0.02). In multivariate analysis, IP-10 levels and fibrosis stages were independently associated with SVR. INTERPRETATION & CONCLUSIONS: Our findings showed that the assessment of serum IP-10 level could be a predictive factor for SVR and it was associated with fibrosis, necroinflammatory activity, significant steatosis and IR in patients with chronic HCV infection.


Assuntos
Quimiocina CXCL10/sangue , Fígado Gorduroso/sangue , Hepatite C Crônica/sangue , Resistência à Insulina/genética , Adulto , Idoso , Antivirais/administração & dosagem , Biópsia , Quimiocina CXCL10/genética , Ensaio de Imunoadsorção Enzimática , Fígado Gorduroso/complicações , Fígado Gorduroso/virologia , Feminino , Genótipo , Hepacivirus/efeitos dos fármacos , Hepacivirus/patogenicidade , Hepatite C Crônica/complicações , Hepatite C Crônica/tratamento farmacológico , Hepatite C Crônica/virologia , Humanos , Interferon gama/sangue , Interferon gama/genética , Fígado/efeitos dos fármacos , Fígado/patologia , Fígado/virologia , Masculino , Pessoa de Meia-Idade , Ribavirina/administração & dosagem , Resultado do Tratamento , Carga Viral/efeitos dos fármacos
2.
Liver Int ; 35(2): 317-25, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25228102

RESUMO

BACKGROUND & AIMS: Liver stiffness (LS), spleen stiffness (SS) and serum markers have been proposed to non-invasively assess portal hypertension or oesophageal varices (EV) in cirrhotic patients. We aimed to evaluate the performance of a stepwise algorithm that combines Lok score with LS and SS for diagnosing high-risk EV (HREV) and to compare it with other already-validated non-invasive methods. METHODS: We performed a cross-sectional study including 136 consecutive compensated cirrhotic patients with various aetiologies, divided into training (90) and validation (46) set. Endoscopy was performed within 6 months from inclusion for EV screening. Spleen diameter was assessed by ultrasonography. LS and SS were measured using Fibroscan. Lok score, platelet count/spleen diameter ratio, LSM-spleen diameter to platelet ratio score and oesophageal varices risk score (EVRS) were calculated and their diagnostic accuracy for HREV was assessed. The algorithm classified patients as having/not-having HREV. Its performance was tested and compared in both groups. RESULTS: In the training set, all variables could select patients with HREV with moderate accuracy, the best being LSPS (AUROC = 0.818; 0.93 sensitivity; 0.63 specificity). EVRS, however, was the only independent predictor of HREV (OR = 1.521; P = 0.032). The algorithm correctly classified 69 (76.66%) patients in the training set (P < 0.0001) and 36 (78.26%) in the validation one. In the validation group, the algorithm performed slightly better than LSPS and EVRS, showing 100% sensitivity and negative predicted value. CONCLUSION: The stepwise algorithm combining Lok score, LS and SS could be used to select patients at low risk of having HREV and who may benefit from more distanced endoscopic evaluation.


Assuntos
Algoritmos , Varizes Esofágicas e Gástricas/diagnóstico , Hipertensão Portal/diagnóstico , Cirrose Hepática/complicações , Fígado/patologia , Baço/diagnóstico por imagem , Estudos Transversais , Endoscopia Gastrointestinal , Varizes Esofágicas e Gástricas/etiologia , Humanos , Hipertensão Portal/etiologia , Cirrose Hepática/patologia , Contagem de Plaquetas , Ultrassonografia
3.
J Gastrointestin Liver Dis ; 33(2): 212-217, 2024 Jun 29.
Artigo em Inglês | MEDLINE | ID: mdl-38944873

RESUMO

BACKGROUND AND AIMS: Hepatocellular carcinoma (HCC) is a significant public health issue, with an increasing incidence and prevalence and a high incidence-to-mortality ratio. The prognosis of HCC depends on two competing factors, tumor burden and underlying liver disease severity, encompassed in the Barcelona Clinic Liver Cancer (BCLC) classification. To assess HCC staging and the way staging affects eligibility for treatment at the time of the first diagnosis in Romania in the setting of opportunistic diagnosis, in the absence of a national HCC screening policy. METHODS: Data regarding HCC staging, underlying liver disease, and eligibility for treatment at the time of diagnosis was analyzed using a prospectively maintained multicentric database, which included patients from the five largest tertiary care hepatology units in the country between June 2016 and February 2020. RESULTS: A consecutive series of 477 patients was included. The distribution within BCLC classes was as follows: very early (0) 7.1%, early (A) 34.3%, intermediate (B) 19.4%, advanced (C) 14.2%, terminal (D) 24.7%. At the time of the diagnosis, 198 (41.5%) were eligible for a curative intent treatment, while 359 (75.2%) were eligible for a disease-modifying therapy. 228 patients (47.8%) had decompensated liver disease at the time of diagnosis, the most common decompensating event being ascites (78.1%). CONCLUSIONS: A large proportion of HCC cases are diagnosed at the time of a decompensating event, severely restricting the therapeutic potential. Proactive diagnostic strategies should be implemented to improve the rate of actionable diagnosis.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , Estadiamento de Neoplasias , Humanos , Carcinoma Hepatocelular/patologia , Carcinoma Hepatocelular/epidemiologia , Carcinoma Hepatocelular/mortalidade , Carcinoma Hepatocelular/diagnóstico , Carcinoma Hepatocelular/terapia , Neoplasias Hepáticas/epidemiologia , Neoplasias Hepáticas/patologia , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/diagnóstico , Neoplasias Hepáticas/terapia , Romênia/epidemiologia , Masculino , Feminino , Pessoa de Meia-Idade , Idoso , Adulto , Idoso de 80 Anos ou mais , Bases de Dados Factuais , Estudos Retrospectivos
5.
J Clin Med ; 11(5)2022 Feb 26.
Artigo em Inglês | MEDLINE | ID: mdl-35268381

RESUMO

(1) Background: The pursuit of finding biomarkers for the diagnosis and prognosis of hepatocellular carcinoma (HCC) has never been so paramount in the days of personalized medicine. The main objective of our study is to identify new biomarkers for diagnosing HCC, and to identify which patients are at risk of developing tumor recurrence, decompensation, or even possesses the risk of cancer-related death. (2) Methods: We have conducted an untargeted metabolomics study from the serum of 69 European patients­32 compensated cirrhotic patients without HCC (controls), and 37 cirrhotic patients with HCC with compensated underlying liver disease (cases), that underwent curative treatment (surgery or ablation), performing ultra-high-performance liquid chromatography coupled with electrospray ionization quadrupole time-of-flight mass spectrometry (UHPLC-QTOF- (ESI+)-MS) with an emphasis on lipid metabolites. (3) Results: 1,25-dihydroxy cholesterol (m/z = 419.281), myristyl palmitate (m/z = 453.165), 25-hydroxy vitamin D2 (m/z = 413.265), 12-ketodeoxycholic acid (m/z = 391.283), lysoPC (21:4) (m/z = 558.291), and lysoPE (22:2) (m/z = 534.286) represent notable biomarkers that differentiate compensated cirrhosis from early HCC, and ceramide species are depleted in the serum of HCC patients. Regarding prognosis, no metabolite identified in our study could determine tumor relapse. To distinguish between the HCC patients that survived curative treatment and those at risk that developed tumor burden, we have identified two notable phosphocholines (PC (30:2); PC (30:1)) with AUROCs of 0.820 and 0.807, respectively, that seem to increase when patients are at risk. In a univariate analysis, arachidonic acid was the only metabolite to predict decompensation (OR = 0.1, 95% CI: 0−0.16, p < 0.005), while in the multivariate analysis, dismally, no variable was associated with decompensation. Furthermore, in the multivariate analysis, we have found out for the first time that the increased expression of 1,25-dihydroxy cholesterol, myristyl palmitate, 12-keto deoxycholic acid, lysoPC (21:4), and lysoPE (22:2) are independent markers of survival. (4) Conclusions: Our study reveals that lipids play a crucial role in discriminating compensated cirrhosis and early hepatocellular carcinoma, and might represent markers of survival and prognosis in personalized and minimally invasive medicine.

6.
Dig Liver Dis ; 54(10): 1385-1391, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-35732546

RESUMO

BACKGROUND: Multidrug-resistant organisms are an increasing concern in patients with decompensated cirrhosis. AIM: We aimed to evaluate the prevalence of infections with carbapenem-resistant Enterobacteriaceae in patients with decompensated cirrhosis. METHODS: Patients with decompensated cirrhosis admitted to ICU were included. The isolated Enterobacteriaceae strains were tested for carbapenemase-producing genes using the Roche LightMix® Modular VIM/IMP/NDM/GES/KPC/OXA48-carbapenemase detection kit. RESULTS: 48 culture-positive infections were registered in 75 patients with acutely decompensated cirrhosis. Thirty patients contracted a second infection. 46% of bacteria isolated at admission and 60% of bacteria responsible for infections identified during ICU-stay were multiresistant. ESBL+ Enterobacteriaceae were predominant at admission, while carbapenem-resistance was dominant in both Enterobacteriaceae and Non-Fermenting-Gram-Negative Bacteria responsible for infections diagnosed during hospitalisation. OXA 48 or KPC type carbapenemases were present in 30% of the analyzed Enterobacteriaceae and in 40% of the phenotypically carbapenem-resistant Klebsiella pneumoniae strains. The length of ICU stay was a risk-factor for a second infection (p=0.04). Previous carbapenem usage was associated with occurence of infections with carbapenem-resistant Gram-negative bacteria during hospitalization (p=0.03). CONCLUSION: The prevalence of infections with carbapenem-resistant Enterobacteriaceae is high in patients with decompensated cirrhosis admitted to ICU. Carbapenemase-producing genes in Enterobacteriaceae in our center are blaOXA-48 and blaKPC.


Assuntos
Enterobacteriáceas Resistentes a Carbapenêmicos , Humanos , Antibacterianos/uso terapêutico , Enterobacteriáceas Resistentes a Carbapenêmicos/genética , Carbapenêmicos/farmacologia , Carbapenêmicos/uso terapêutico , Enterobacteriaceae/genética , Hospitalização , Unidades de Terapia Intensiva , Cirrose Hepática/epidemiologia , Testes de Sensibilidade Microbiana
7.
Gastroenterology ; 139(4): 1257-66, 2010 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-20600013

RESUMO

BACKGROUND & AIMS: The current standard of care for patients with chronic hepatitis C virus (HCV) genotype 1 is once-weekly pegylated interferon-α (Peg-IFNα) plus daily ribavirin for 48 weeks. We evaluated the efficacy/safety of albinterferon alfa-2b (albIFN), a novel, long-acting, genetic fusion polypeptide of albumin and IFNα-2b. METHODS: In the phase 3 ACHIEVE-1 trial, 1331 patients were assigned equally to 3 open-label, 48-week treatment groups: Peg-IFNα-2a 180 µg every week, or albIFN 900 or 1200 µg every 2 weeks administered subcutaneously, with weight-based oral ribavirin 1000-1200 mg/day. During the study, the data monitoring committee recommended dose modification for all patients receiving albIFN 1200 µg to 900 µg because of increased pulmonary adverse events (AEs) in the 1200-µg arms of both ACHIEVE studies. Main outcome measure was sustained virologic response (SVR; undetectable serum HCV RNA at week 72). RESULTS: Intention-to-treat SVR rates were 51.0% (225/441), 48.2% (213/442), and 47.3% (208/440) with Peg-IFNα-2a, and albIFN 900 and 1200 µg, respectively. The primary objective of showing noninferiority of albIFN 900 µg (P < .001) and 1200 µg (P = .003) vs Peg-IFNα-2a for SVR was achieved. Multivariate modeling indicated consistency of treatment effect across subgroups. Serious/severe AE rates were 23.1%, 24.0%, 28.2%; treatment discontinuation rates because of AEs were 4.1%, 10.4%, 10.0%; discontinuation rates because of respiratory AEs were 0%, 0.9%, 1.6%; with Peg-IFNα-2a, and albIFN 900 and 1200 µg, respectively. Hematologic abnormality rates were comparable across the Peg-IFNα-2a and albIFN 900-µg groups. CONCLUSIONS: albIFN 900 µg every 2 weeks showed comparable efficacy, with similar serious/severe AE rates, although with a higher discontinuation rate, vs Peg-IFNα-2a in patients with chronic HCV genotype 1.


Assuntos
Albuminas/uso terapêutico , Antivirais/uso terapêutico , Hepatite C Crônica/tratamento farmacológico , Interferon-alfa/uso terapêutico , Polietilenoglicóis/uso terapêutico , Adulto , Albuminas/administração & dosagem , Albuminas/efeitos adversos , Quimioterapia Combinada , Feminino , Hepatite C Crônica/virologia , Humanos , Interferon alfa-2 , Interferon-alfa/administração & dosagem , Interferon-alfa/efeitos adversos , Masculino , Pessoa de Meia-Idade , Polietilenoglicóis/administração & dosagem , Polietilenoglicóis/efeitos adversos , Proteínas Recombinantes , Ribavirina/administração & dosagem
8.
J Gastroenterol Hepatol ; 26(1): 164-70, 2011 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-21175810

RESUMO

BACKGROUND AND AIM: Splenomegaly in a common finding in liver cirrhosis that should determine changes in the spleen's density because of portal and splenic congestion and/or because of tissue hyperplasia and fibrosis. These changes might be quantified by elastography, so the aim of the study was to investigate whether spleen stiffness measured by transient elastography varies as liver disease progresses and whether this would be a suitable method for the noninvasive evaluation of the presence of esophageal varices. PATIENTS AND METHODS: One hundred and ninety-one patients (135 liver cirrhosis, 39 chronic hepatitis and 17 healthy controls) were evaluated by transient elastography for measurements of spleen and liver stiffness. Cirrhotic patients also underwent upper endoscopy for the diagnosis of esophageal varices. RESULTS: Spleen stiffness showed higher values in liver cirrhosis patients as compared with chronic hepatitis and with controls: 60.96 vs 34.49 vs 22.01 KPa (P<0.0001). In the case of liver cirrhosis, spleen stiffness was significantly higher in patients with varices as compared with those without (63.69 vs 47.78 KPa, P<0.0001), 52.5 KPa being the best cut-off value, with an area under the receiver operating characteristic of 0.74. Using both liver and spleen stiffness measurement we correctly predicted the presence of esophageal varices with 89.95% diagnostic accuracy. CONCLUSION: Spleen stiffness can be assessed using transient elastography, its value increasing as the liver disease progresses. In liver cirrhosis patients spleen stiffness can predict the presence, but not the grade of esophageal varices. Esophageal varices' presence can be better predicted if both spleen and liver stiffness measurements are used.


Assuntos
Técnicas de Imagem por Elasticidade/métodos , Varizes Esofágicas e Gástricas/diagnóstico por imagem , Hepatite C Crônica/complicações , Cirrose Hepática/diagnóstico por imagem , Baço/diagnóstico por imagem , Esplenomegalia/diagnóstico por imagem , Adolescente , Adulto , Idoso , Biópsia , Progressão da Doença , Endoscopia Gastrointestinal , Varizes Esofágicas e Gástricas/etiologia , Varizes Esofágicas e Gástricas/patologia , Feminino , Hepatite C Crônica/diagnóstico por imagem , Hepatite C Crônica/patologia , Humanos , Fígado/diagnóstico por imagem , Fígado/patologia , Cirrose Hepática/etiologia , Cirrose Hepática/patologia , Masculino , Pessoa de Meia-Idade , Tamanho do Órgão , Contagem de Plaquetas , Valor Preditivo dos Testes , Estudos Prospectivos , Curva ROC , Romênia , Sensibilidade e Especificidade , Esplenomegalia/etiologia , Adulto Jovem
9.
Cancers (Basel) ; 12(4)2020 Mar 31.
Artigo em Inglês | MEDLINE | ID: mdl-32244548

RESUMO

An increasing number of studies suggest the implication of microRNAs (miRNAs) in colorectal (CRC) carcinogenesis and disease progression. Nevertheless, the basic mechanism is not yet clear. We determined plasma miRNA expression levels using Agilent microarray technology followed by overlapping with The Cancer Genome Atlas (TCGA) tissue data and a qRT-PCR validation step and analysis of the altered miRNA signatures to emphasize new mechanistic insights. For TGCA dataset, we identified 156 altered miRNAs (79 downregulated and 77 upregulated) in colorectal tissue samples versus normal tissue. The microarray experiment is based on 16 control samples, 38 CRC plasma samples from colorectal cancer patients who have not undergone chemotherapy, and 17 chemo-treated samples. In the case of the analysis of CRC cancer versus healthy control we identified 359 altered miRNAs (214 downregulated and 60 upregulated), considering as the cutoff value a fold-change of ±1.5 and p < 0.01. An additional microarray analysis was performed on plasma from untreated colorectal cancer (n = 38) and chemotherapy-treated colorectal cancer patients (n = 17), which revealed 15 downregulated miRNAs and 53 upregulated miRNAs, demonstrating that the plasma miRNA pattern is affected by chemotherapy and emphasizing important regulators of drug resistance mechanisms. For the validation of the microarray data, we selected a panel of 4 miRNAs from the common miRNA signatures for colon and rectal cancer (miR-642b-3p, miR-195-5p and miR-4741). At the tissue level, the expression levels were in agreement with those observed in colorectal plasma. miR-1228-3p, the top upregulated miRNA in CRC, was chosen to be validated on tissue and plasma samples, as it was demonstrated to be downregulated at tissue level in our patient cohort. This was confirmed by TCGA data and was one example of ta ranscript that has a different expression level between tumor tissue and plasma. Developing more efficient investigation methods will help explain the mechanisms responsible for miRNAs released in biofluids, which is the most upregulated transcript in colorectal plasma samples and which can function as a prediction tool within the oncological field.

10.
Hepatology ; 48(2): 407-17, 2008 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-18666223

RESUMO

UNLABELLED: The efficacy and safety of albinterferon alfa-2b (alb-IFN), a novel recombinant protein consisting of interferon alfa-2b genetically fused to human albumin, was evaluated in a phase 2b, open-label study of patients with genotype 1, chronic hepatitis C. In all, 458 IFN-alfa treatment-naïve patients were randomized to 48-week treatment with peginterferon alfa (PEG-IFNalpha)-2a 180 microg one time per week (qwk), or alb-IFN 900 or 1,200 microg once every two weeks (q2wk), or 1,200 microg once every four weeks (q4wk), administered subcutaneously, plus weight-based oral ribavirin 1,000 or 1,200 mg/day. Hepatitis C virus RNA was measured by real-time polymerase chain reaction (limit of detection: 10 IU/mL). The primary efficacy endpoint was sustained virologic response (hepatitis C virus RNA <10 IU/mL 24 weeks after the end of treatment). By intention-to-treat analysis, sustained virologic response rates were 58.5% (69/118) with alb-IFN 900 microg q2wk, 55.5% (61/110) with 1,200 microg q2wk, and 50.9% (59/116) with 1,200 microg q4wk, and 57.9% (66/114) with PEG-IFNalpha-2a (P = 0.64 for overall test). Discontinuation rates due to adverse events were 9.3% with alb-IFN 900 microg q2wk, 18.2% with 1,200 microg q2wk and 12.1% with 1,200 microg q4wk, and 6.1% with PEG-IFNalpha-2a (P = 0.04). Hematologic reductions were lowest in the q4wk group and comparable across other groups. At week 12, mean treatment-associated missed workdays were significantly lower with alb-IFN 900 mug q2wk versus PEG-IFNalpha-2a (1.1 versus 4.3 days; P = 0.006). CONCLUSION: Alb-IFN administered q2wk or q4wk may offer comparable efficacy, with an improved dosing schedule, compared with PEG-IFNalpha-2a.


Assuntos
Albuminas/uso terapêutico , Antivirais/administração & dosagem , Hepacivirus/genética , Hepatite C Crônica/tratamento farmacológico , Interferon-alfa/uso terapêutico , Administração Oral , Adulto , Albuminas/administração & dosagem , Albuminas/efeitos adversos , Antivirais/efeitos adversos , Antivirais/uso terapêutico , Esquema de Medicação , Quimioterapia Combinada , Feminino , Genótipo , Nível de Saúde , Hepatite C Crônica/fisiopatologia , Humanos , Injeções Subcutâneas , Interferon alfa-2 , Interferon-alfa/administração & dosagem , Interferon-alfa/efeitos adversos , Masculino , Pessoa de Meia-Idade , Cooperação do Paciente , Polietilenoglicóis/administração & dosagem , Polietilenoglicóis/uso terapêutico , Qualidade de Vida , RNA Viral/antagonistas & inibidores , Proteínas Recombinantes , Ribavirina/administração & dosagem , Ribavirina/uso terapêutico , Resultado do Tratamento , Carga Viral
11.
Med Ultrason ; 20(3): 272-277, 2018 Aug 30.
Artigo em Inglês | MEDLINE | ID: mdl-30167578

RESUMO

The evaluation of patients with early hepatocellular carcinoma (HCC) referred for liver resection is still a matter of debate. Aims: 1) to compare liver stiffness measurement (LSM) by transient elastography with hepatic venous pressure gradient (HVPG) in the prediction of decompensation after liver resection in patients with cirrhosis and early HCC; 2) to identify which definition for posthepatectomy liver failure is better associated with survival. MATERIAL AND METHODS: Fifty-one patients (MELD score of 10±3) were included. In this group, 34 patients underwent HVPG measurement, of which 13 (38%) had clinically significant portal hypertension (CSPH) and 35 patients underwent LSM (21.8±17.9 kPa). The study's end-points were: posthepatectomy liver failure (PHLF) defined according to International Study Group of Liver Surgery criteria and 3-month decompensation defined as de novo ascites, variceal bleeding, jaundice, hepatic encephalopathy and acute kidney injury. The performance of LSM compared to HVPG in predicting the end-points were assessed by AUROC curves and accuracy. RESULTS: Twenty (39%) patients developed PHLF and 15 (29%) developed decompensationat 3 months. Three-month decompensation tended to be better correlated with survival. LSM performed well in predicting decompensation at 3 months (AUROC=0.78, 95%CI: 0.63-0.94; p=0.01), comparable with HVPG (AUROC=0.89, 95%CI: 0.79-1.00; p<0.01) (DeLong test p=0.21). LSM was not sufficiently accurate to predict PHLF. CONCLUSION: LSM has a similar performance to HVPG in predicting decompensation at 3 months in patients with early HCC submitted to liver resection. Three-month decompensation is better associated with survival.


Assuntos
Carcinoma Hepatocelular/diagnóstico por imagem , Hipertensão Portal/fisiopatologia , Cirrose Hepática/diagnóstico por imagem , Falência Hepática/etiologia , Neoplasias Hepáticas/etiologia , Neoplasias Hepáticas/cirurgia , Idoso , Carcinoma Hepatocelular/complicações , Carcinoma Hepatocelular/patologia , Carcinoma Hepatocelular/cirurgia , Estudos de Coortes , Técnicas de Imagem por Elasticidade/métodos , Feminino , Hepatectomia/efeitos adversos , Hepatectomia/métodos , Humanos , Hipertensão Portal/diagnóstico por imagem , Cirrose Hepática/complicações , Cirrose Hepática/patologia , Cirrose Hepática/cirurgia , Falência Hepática/mortalidade , Falência Hepática/fisiopatologia , Neoplasias Hepáticas/patologia , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/fisiopatologia , Valor Preditivo dos Testes , Prognóstico , Estudos Retrospectivos , Medição de Risco , Índice de Gravidade de Doença , Análise de Sobrevida , Análise e Desempenho de Tarefas , Resultado do Tratamento
12.
J Gastrointestin Liver Dis ; 27(1): 51-58, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29557415

RESUMO

BACKGROUND AND AIMS: Current management of alcoholic liver disease (ALD), especially for alcoholic hepatitis (AH) is still driven by liver biopsy. Therefore, the identification of novel and accurate noninvasive biomarkers for the diagnosis and assessment of severity is important. Metabolomics, because it unravels changes closest to the phenotype, may represent the key for novel biomarkers. The aim of this study was to identify and characterize potential metabolomic biomarkers for diagnosis, staging and severity assessment of ALD. METHODS: 30 consecutive ALD patients and 10 healthy controls were included in this proof-of-concept cross-sectional study. Baseline assessment consisted in evaluation of Maddrey's Discriminant Function, Model for End-Stage Liver Disease (MELD) and ABIC scores as well as ASH-Test (Fibromax) as a surrogate for the confirmatory diagnosis of AH in suggestive clinical and biologic settings. Additionally, SOP metabolomics and lipidomics were performed from serum samples by liquid chromatography mass-spectrometry analysis. RESULTS: From the 127 and 135 serum/urine candidate metabolites initially identified, only 11/5 metabolites were characteristic for ALD patients. None of them correlated with alcohol intake, and only 5/1 metabolites could differentiate cirrhotic from non-cirrhotic patients. Of those, N-Lauroglycine (NLG) was the best for identifying cirrhosis (100% sensitivity and 90% negative predictive value, NPV) and decatrienoic acid (DTEA) was the best for assessing disease severity (evaluated by ABIC score) with 100% sensitivity and 100% NPV. CONCLUSION: Due to their high NPV, NLG and DTEA could be used in conjunction in ALD patients to exclude cirrhosis or a severe disease. If further validated, they could become biomarkers for better management and risk assessment in ALD.


Assuntos
Lipídeos/sangue , Hepatopatias Alcoólicas/sangue , Hepatopatias Alcoólicas/urina , Adulto , Idoso , Biomarcadores/sangue , Biomarcadores/urina , Estudos de Casos e Controles , Feminino , Humanos , Cirrose Hepática Alcoólica/sangue , Cirrose Hepática Alcoólica/diagnóstico , Hepatopatias Alcoólicas/diagnóstico , Masculino , Metaboloma , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Estudo de Prova de Conceito , Índice de Gravidade de Doença
13.
Rom J Gastroenterol ; 14(1): 53-61, 2005 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-15800694

RESUMO

The understanding of pathogenesis of acute and chronic pancreatitis has benefited from the progress made in genetic investigations. The discoveries of the gain of function mutations of cationic trypsinogen gene (PRSS1) and the loss of function mutations of pancreatic secretory trypsin inhibitor (SPINK 1) or other potential defects in genes that regulate pancreatic secretory function or modulate inflammatory response to pancreatic injury has changed our current concepts on the pathogenesis of pancreatitis. Genetic factors play an important role in the susceptibility to pancreatic injury, severity and evolution of inflammatory process, leading in some cases to chronic inflammation and/or fibrosis. Acute pancreatitis is viewed as an event and chronic pancreatitis as a process, sequentially linked, reflecting a complex interaction between genetic and environmental factors.


Assuntos
Proteínas de Transporte/genética , Regulador de Condutância Transmembrana em Fibrose Cística/genética , Predisposição Genética para Doença , Pancreatite/genética , Pancreatite/fisiopatologia , Tripsina/genética , Tripsinogênio/genética , Proteínas de Transporte/farmacologia , Regulador de Condutância Transmembrana em Fibrose Cística/farmacologia , Análise Mutacional de DNA , Fibrose , Testes Genéticos , Humanos , Inflamação , Pâncreas/fisiologia , Tripsina/farmacologia , Inibidor da Tripsina Pancreática de Kazal , Tripsinogênio/farmacologia
14.
Rom J Gastroenterol ; 14(2): 109-15, 2005 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-15990928

RESUMO

BACKGROUND AND AIM: Pegylated interferon alpha in combination with ribavirin represents nowadays the gold standard therapy in patients with chronic hepatitis C. The aim of this study was to assess early (EVR) and sustained virological response (SVR), tolerability and baseline predictive factors for SVR in patients with chronic hepatitis C treated with peginterferon alpha-2a and ribavirin combination therapy in day-to-day clinical practice. METHODS: The analysis included 174 consecutive patients with chronic hepatitis C (naive, relapsers and non-responders after standard therapy) managed in two expertise gastroenterology centers in Romania, mainly on an outpatient basis. The combination therapy was initiated between 1st of June 2002 - 30th of June 2003. RESULTS: The mean age of the study population was 47 years; 41% were men, mean BMI was 26.5 kg/sq.m. Only 7.5% of them had bridging fibrosis/cirrhosis on liver biopsy. EVR and SVR were noted in 78.7% and 51.1%, respectively. Multivariate analysis showed two independent variables associated with SVR: absence of bridging fibrosis/cirrhosis and absence of hepatic steatosis. The rate and profile of side effects associated with pegylated interferon alpha-2a and ribavirin in our clinical setting were all predictable, based on previous experience in the literature. Side effects resulted in interferon and ribavirin dose reductions in 9.2% and, respectively, 25.3%, but permanent discontinuation of the combination therapy was required in only 5.74% of patients. CONCLUSION: Combination antiviral therapy can be safely and successfully used outside clinical trials. To achieve high response rates and tolerability, similar or better than those reported in clinical trials, hepatitis C patients have to be managed in expertise centers, by experienced physicians, aiming at minimizing side effects, optimizing dosing, and enhancing compliance.


Assuntos
Antivirais/uso terapêutico , Hepatite C Crônica/tratamento farmacológico , Interferon-alfa/uso terapêutico , Polietilenoglicóis/uso terapêutico , Ribavirina/uso terapêutico , Alanina Transaminase/sangue , Biópsia , Quimioterapia Combinada , Feminino , Seguimentos , Hepacivirus/genética , Hepatite C Crônica/enzimologia , Hepatite C Crônica/patologia , Humanos , Interferon alfa-2 , Masculino , Pessoa de Meia-Idade , Reação em Cadeia da Polimerase , RNA Viral/análise , Proteínas Recombinantes , Estudos Retrospectivos , Romênia , Resultado do Tratamento
15.
Dig Liver Dis ; 47(5): 411-6, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-25732434

RESUMO

BACKGROUND: The diagnostic performance of biochemical scores and artificial neural network models for portal hypertension and cirrhosis is not well established. AIMS: To assess diagnostic accuracy of six serum scores, artificial neural networks and liver stiffness measured by transient elastography, for diagnosing cirrhosis, clinically significant portal hypertension and oesophageal varices. METHODS: 202 consecutive compensated patients requiring liver biopsy and hepatic venous pressure gradient measurement were included. Several serum tests (alone and combined into scores) and liver stiffness were measured. Artificial neural networks containing or not liver stiffness as input variable were also created. RESULTS: The best non-invasive method for diagnosing cirrhosis, portal hypertension and oesophageal varices was liver stiffness (C-statistics=0.93, 0.94, and 0.90, respectively). Among serum tests/scores the best for diagnosing cirrhosis and portal hypertension and oesophageal varices were, respectively, Fibrosis-4, and Lok score. Artificial neural networks including liver stiffness had high diagnostic performance for cirrhosis, portal hypertension and oesophageal varices (accuracy>80%), but were not statistically superior to liver stiffness alone. CONCLUSIONS: Liver stiffness was the best non-invasive method to assess the presence of cirrhosis, portal hypertension and oesophageal varices. The use of artificial neural networks integrating different non-invasive tests did not increase the diagnostic accuracy of liver stiffness alone.


Assuntos
Varizes Esofágicas e Gástricas/diagnóstico , Hipertensão Portal/diagnóstico , Cirrose Hepática/diagnóstico , Fígado/metabolismo , Fígado/patologia , Redes Neurais de Computação , Idoso , Algoritmos , Técnicas de Imagem por Elasticidade/métodos , Varizes Esofágicas e Gástricas/sangue , Varizes Esofágicas e Gástricas/patologia , Feminino , Humanos , Hipertensão Portal/sangue , Hipertensão Portal/patologia , Cirrose Hepática/sangue , Cirrose Hepática/patologia , Masculino , Pessoa de Meia-Idade , Contagem de Plaquetas
16.
J Gastrointestin Liver Dis ; 24(4): 413-21, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26697566

RESUMO

BACKGROUND: Hepatitis delta virus (HDV) infection is associated with accelerated progression of fibrosis, early occurrence of hepatic decompensation and an increased risk for hepatocellular carcinoma. Epidemiological data on hepatitis delta virus (HDV) in Romania are still lacking. AIM: To assess the prevalence, virological, clinical and epidemiological features of HDV infection in Romanian patients. METHODS: We conducted a multicenter study in 10 centers. Data on sociodemographic characteristics and potential risk factors were collected through a questionnaire. Virological markers of HBV and HDV infection, biochemical and clinical features of liver disease were evaluated. RESULTS: The study population comprised 2,761 HBsAg(+) patients with a mean age of 43.8+/-13.8 years, out of whom 5.2% were HBeAg(+) and 55.7% were males. Liver cirrhosis was detected in 17.9% of patients, while 80.4% had chronic hepatitis. The prevalence of IgG anti-HDV(+) patients was 23.1%, out of whom 16.4% were HDV RNA positive. The highest prevalence of HDV infection was encountered in patients aged 50-59 years (28.9%) and patients aged >/= 60 (24.8%) (p=0.0001). Seroprevalence of HDV was significantly higher in AgHBs(+) cirrhotics vs. noncirrhotics (43.4% vs 19.0%, p=0.0001). Risk factors for HDV infection were: occupational hazard, no HCV chronic infection, lack of anti-HBV vaccination, presence of blood transfusions, any previous surgery, frequent hospitalization or endoscopies, tattoos, body piercing, use of glass syringes, number of female sexual partners. CONCLUSIONS: HBsAg(+) population in Romania is characterized by a high prevalence of HBeAg(-) HBV infection as well as HDV co-infection. A cohort phenomenon for HDV prevalence is also observed similar to that of HCV/HBV monoinfections.


Assuntos
Coinfecção , Hepatite B Crônica/epidemiologia , Hepatite D/epidemiologia , Adolescente , Adulto , Biomarcadores/sangue , Feminino , Antígenos de Superfície da Hepatite B/sangue , Antígenos E da Hepatite B/sangue , Hepatite B Crônica/diagnóstico , Hepatite B Crônica/transmissão , Hepatite B Crônica/virologia , Hepatite D/diagnóstico , Hepatite D/transmissão , Hepatite D/virologia , Vírus Delta da Hepatite/isolamento & purificação , Humanos , Cirrose Hepática/diagnóstico , Cirrose Hepática/epidemiologia , Cirrose Hepática/virologia , Masculino , Pessoa de Meia-Idade , Prevalência , Fatores de Risco , Romênia/epidemiologia , Estudos Soroepidemiológicos , Adulto Jovem
17.
Eur J Gastroenterol Hepatol ; 16(1): 27-31, 2004 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-15095849

RESUMO

BACKGROUND AND AIM: Chronic hepatitis is a disabling condition leading to impairment of a patient's quality of life. We investigated the impact of chronic viral hepatitis on health-related quality of life. The relationship between transaminase level and score in the quality-of-life questionnaire was also investigated. METHODS: We studied 66 patients with chronic viral hepatitis (27 with hepatitis B, 38 with hepatitis C, 1 with hepatitis B+C; 32 men, 34 women) naive to any previous antiviral therapy. All had high levels of transaminases. Patients with chronic disease or those using drugs to modify their quality of life were discarded. The control group consisted of 36 healthy volunteers (17 men, 19 women). Both groups completed the Short Form 36 health survey, with the exception of the items concerning bodily pain. RESULTS: Significant differences between the two groups for every domain of quality of life (physical functioning, role physical, mental health, role emotional, social functioning, vitality and general health) were recorded. We found no significant correlation between the level of transaminases and any item of the health-related quality-of-life questionnaire. In hepatitis B patients, several quality-of-life scores (general health, social functioning, mental health) were better than in hepatitis C patients. CONCLUSIONS: Patients with chronic viral hepatitis not receiving antiviral therapy have an impaired quality of life as estimated by the Short Form 36 health survey.


Assuntos
Hepatite Viral Humana , Qualidade de Vida , Adulto , Alanina Transaminase/sangue , Aspartato Aminotransferases/sangue , Doença Crônica , Feminino , Hepatite Viral Humana/tratamento farmacológico , Hepatite Viral Humana/enzimologia , Humanos , Masculino , Romênia , Inquéritos e Questionários
18.
Rom J Gastroenterol ; 11(1): 19-24, 2002 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-12096309

RESUMO

The pathogenesis of chronic alcoholic pancreatitis has not been elucidated yet. There are many theories about this topic. The first regards the initial injuries in the ductal pancreatic system. The second considers that the primary lesion is located in the acinar cells. Three hypotheses are elaborated in this respect: the intervention of toxic metabolites, oxidative stress or neuroimmmune system. The third theory sustains that a severe initial attack of acute pancreatitis may induce lesions typical of chronic pancreatitis. Recently the intervention of genetic factors, responsible for the susceptibility chronic pancreatitis has been put forward.


Assuntos
Pancreatite Alcoólica/etiologia , Fibrose , Humanos , Necrose , Estresse Oxidativo , Pâncreas/patologia , Pancreatite Alcoólica/patologia , Pancreatite Alcoólica/fisiopatologia
19.
Rom J Gastroenterol ; 12(3): 179-82, 2003 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-14502316

RESUMO

Virus D hepatitis continues to represent a public health problem in the south-eastern European countries, but the spread of the D virus infection in Romania is not completely elucidated. The paper proposes to assess the prevalence of the hepatitis D virus infection in patients with HBsAg-positive chronic hepatitis and liver cirrhosis in Romania. A number of 219 patients with chronic hepatitis and 168 with liver cirrhosis, all testing positive for HBsAg were studied. Viral markers were determined by immunoenzymatic methods. In HBsAg-positive chronic hepatitis the prevalence of the D virus was 37.9 % and in liver cirrhosis 51.19%. The great majority of the cases infected with hepatitis B virus were HBeAg-negative. These findings situate Romania among countries with a high prevalence of the hepatitis D virus infection, but which is decreasing as compared to the data communicated by previous reports.


Assuntos
Hepatite D Crônica/epidemiologia , Cirrose Hepática/virologia , Adulto , Feminino , Hepatite B Crônica/complicações , Hepatite B Crônica/epidemiologia , Hepatite D Crônica/complicações , Humanos , Cirrose Hepática/epidemiologia , Masculino , Prevalência , Romênia/epidemiologia
20.
Rom J Gastroenterol ; 12(4): 309-13, 2003 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-14726977

RESUMO

Portal biliopathy is a newly introduced term, describing the changes observed in the biliary ducts of portal hypertension patients. We present here the case of a patient diagnosed with portal vein thrombosis secondary to a chronic pancreatitis; the abnormalities in the bile ducts were observed during the endoscopic retrograde cholangiopancreatography. We also review the existing information on this subject in the literature.


Assuntos
Doenças Biliares/etiologia , Hipertensão Portal/complicações , Adulto , Doenças Biliares/diagnóstico , Humanos , Masculino , Pseudocisto Pancreático/complicações , Pancreatite/complicações , Veia Porta , Trombose Venosa/complicações
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