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1.
J Gastroenterol Hepatol ; 34(6): 1081-1087, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-30402928

RESUMO

BACKGROUND AND AIM: Several factors, including proangiogenic cytokines, have been reported as predictive markers for the treatment effect of sorafenib in patients with hepatocellular carcinoma (HCC); however, most of them were determined based on one-time measurements before treatment. METHODS: We consecutively recruited 80 advanced HCC patients who were treated with sorafenib prospectively. Serum levels of eight proangiogenic cytokines and the appearance of adverse events were monitored periodically, and their correlations with the prognoses of the patients were evaluated. RESULTS: Among six significant risk factors for overall survival in univariate analyses, high angiopoietin-2 (hazard ratio, 2.06), high hepatocyte growth factor (hazard ratio, 2.08), and poor performance status before the treatment (hazard ratio, 2.48) were determined as independent risk factors. In addition, high angiopoietin-2 at the time of progressive disease was a marker of short post-progression survival (hazard ratio, 4.27). However, there was no significant variable that predicted short progression-free survival except the presence of hepatitis B virus surface antigen. CONCLUSIONS: Predictions of overall survival and post-progression survival were possible by periodically measuring serum proangiogenic cytokines, especially angiopoietin-2, in patients with HCC treated with sorafenib.


Assuntos
Angiopoietina-2/sangue , Antineoplásicos/uso terapêutico , Biomarcadores Tumorais/sangue , Carcinoma Hepatocelular/diagnóstico , Carcinoma Hepatocelular/tratamento farmacológico , Citocinas/sangue , Neoplasias Hepáticas/diagnóstico , Neoplasias Hepáticas/tratamento farmacológico , Monitorização Fisiológica , Sorafenibe/uso terapêutico , Adulto , Idoso , Idoso de 80 Anos ou mais , Carcinoma Hepatocelular/mortalidade , Feminino , Humanos , Neoplasias Hepáticas/mortalidade , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Prognóstico , Taxa de Sobrevida , Resultado do Tratamento
2.
Acta Med Okayama ; 72(4): 401-406, 2018 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-30140089

RESUMO

Daclatasvir (DCV) + asunaprevir (ASV) combination therapy has become available for patients with hepatitis C virus (HCV) serogroup 1 infection. We studied the efficacy of this therapy by focusing on the factors associated with sustained virological responses (SVR) including resistance-associated variants (RAVs) and mixed infection of different HCV genotypes. We enrolled 951 HCV serogroup 1-positive patients who received this combination therapy at our hospital or affiliated hospitals. The presence of RAVs in non-structural (NS) regions 3 and 5A was analyzed by direct sequencing. HCV genotypes were determined by PCR with genotype-specific primers targeting HCV core and NS5B regions. SVR was achieved in 91.1% of patients. Female sex, age > 70 years, and RAVs were significantly associated with non-SVR (p<0.01 for all). Propensity score-matching results among the patients without RAVs regarding sex, age, and fibrosis revealed that mixed HCV infection determined by HCV NS5B genotyping showed significantly lower SVR rates than 1B-mono infection (p=0.02). Female sex and RAVs were significant factors associated with treatment failure of this combination therapy for patients with HCV serogroup 1 infection. Mixed HCV infection other than 1B-mono infection would be useful for predicting treatment failure.


Assuntos
Antivirais/administração & dosagem , Hepatite C/tratamento farmacológico , Imidazóis/administração & dosagem , Isoquinolinas/administração & dosagem , Sulfonamidas/administração & dosagem , Adulto , Idoso , Idoso de 80 Anos ou mais , Carbamatos , Quimioterapia Combinada , Feminino , Genótipo , Hepacivirus/classificação , Hepacivirus/genética , Hepatite C/virologia , Humanos , Masculino , Pessoa de Meia-Idade , Pirrolidinas , Valina/análogos & derivados , Adulto Jovem
3.
J Gastroenterol Hepatol ; 32(9): 1611-1616, 2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-28114749

RESUMO

BACKGROUND AND AIM: It remains unclear whether primary biliary cholangitis (PBC) represents a risk factor for secondary osteoporosis. METHODS: A case-control study was conducted to examine bone mineral density and bone turnover markers in middle-aged postmenopausal PBC patients without liver cirrhosis. We compared the incidence of low bone mineral density between propensity-score matched subgroups of PBC patients and healthy controls and investigated the mechanisms underlying unbalanced bone turnover in terms of the associations between bone turnover markers and PBC-specific histological findings. RESULT: Our analysis included 128 consecutive PBC patients, all postmenopausal women aged in their 50s or 60s, without liver cirrhosis or fragility fracture at the time of PBC diagnosis. The prevalence of osteoporosis was significantly higher in the PBC group than in the control group (26% vs 10%, P = 0.015, the Fisher exact probability test). In most PBC patients (95%), the level of bone-specific alkaline phosphatase was above the normal range, indicating increased bone formation. On the other hand, the urine type I collagen-cross-linked N-telopeptide showed variable levels among our PBC patients, indicating unbalanced bone resorption. Advanced fibrosis was associated with low bone turnover. Lobular cholestasis, evaluated as aberrant keratin 7 expression in hepatocytes, showed significant negative correlations with bone formation and resorption, indicating low bone turnover. CONCLUSION: Our results show that, compared with healthy controls, even non-cirrhotic PBC patients have significantly higher risk of osteoporosis. Moreover, lobular cholestasis was associated with low bone turnover, suggesting this feature of PBC may itself cause secondary osteoporosis in PBC patients.


Assuntos
Colangite/complicações , Colangite/metabolismo , Colestase/complicações , Colestase/metabolismo , Osteoporose/epidemiologia , Osteoporose/etiologia , Idoso , Densidade Óssea , Remodelação Óssea , Reabsorção Óssea , Estudos de Casos e Controles , Colangite/patologia , Colestase/patologia , Feminino , Humanos , Cirrose Hepática , Pessoa de Meia-Idade , Osteogênese , Osteoporose/metabolismo , Pós-Menopausa , Prevalência , Pontuação de Propensão , Risco , Fatores de Risco
4.
Acta Med Okayama ; 70(1): 1-12, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26899604

RESUMO

Chronic hepatitis B (CHB) leads to cirrhosis and hepatocellular carcinoma (HCC). With a cohort of 1,206 CHB patients who visited Okayama University Hospital and related hospitals in 2011 and 2012, we compared the incidence rates of HCC among the patients grouped by age, hepatitis B virus (HBV) DNA, hepatitis B e antigen (HBeAg), and treatment. HCCs were observed in 115 patients with the median observation period of 1,687 days. Among the HCC patients aged > 35 years, HBV DNA > 4 log copies/mL and positive HBeAg at diagnosis (n=184), the HCC incidence rate was 8.4% at 5 years in the entecavir (ETV)-treated patients, 21.8% in the lamivudine (LVD)-treated patients, and 26.4% among the patients not treated with drugs. The cumulative HCC incidence was significantly reduced in the ETV-treated patients compared to those treated with LVD or not treated (p=0.013). Among the patients aged >35 years with HBV DNA > 4 log copies/mL and negative HBeAg (n=237), the cumulative HCC incidence was 14.6% in 5 years in ETV group and 13.9% among those not treated with a drug (p>0.05). Only small numbers of HCCs occurred in other patients. In CHB patients aged > 35 years with HBV DNA > 4 log copies/mL and positive HBeAg, ETV treatment is recommended for the suppression of HCC development.


Assuntos
Antivirais/uso terapêutico , Guanina/análogos & derivados , Hepatite B Crônica/tratamento farmacológico , Neoplasias Hepáticas/prevenção & controle , Inibidores da Transcriptase Reversa/uso terapêutico , Fatores Etários , Feminino , Guanina/uso terapêutico , Antígenos E da Hepatite B/sangue , Vírus da Hepatite B/genética , Hepatite B Crônica/complicações , Humanos , Incidência , Lamivudina/uso terapêutico , Cirrose Hepática/etiologia , Cirrose Hepática/prevenção & controle , Neoplasias Hepáticas/etiologia , Masculino , Pessoa de Meia-Idade
5.
Acta Med Okayama ; 69(4): 237-44, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26289915

RESUMO

The effectiveness of extending treatment duration as response guided therapy was previously reported for chronic hepatitis C (CHC) genotype 1, but is still controversial for genotype 2. The present study is a retrospective cohort study to investigate the effectiveness of extending treatment duration in therapy with pegylated interferon and ribavirin for patients with CHC genotype 2 by focusing on the timing at which patients obtained undetectable HCV RNA. A total of 306 patients who obtained undetectable HCV RNA by week 24 of treatment and completed 24 weeks of treatment were enrolled. Rapid virological response (RVR) to standard therapy was achieved by 122 patients (51%), and 89% of them obtained sustained virological response (SVR), while 69% of non-RVR patients achieved SVR. Non-RVR patients with undetectable HCV RNA at week 8, and insufficient adherence<80% pegylated interferon and ribavirin during the first 24 weeks, significantly improved their SVR rate by extended therapy. Among patients receiving extended therapy, drug adherences did not differ between SVR and non-SVR patients, indicating that extending treatment duration might compensate for insufficient antiviral effects due to insufficient drug adherences. This finding might be useful in creating a guideline for extending treatment duration for patients with CHC genotype 2.


Assuntos
Antivirais/administração & dosagem , Hepacivirus/genética , Hepatite C Crônica/tratamento farmacológico , Interferon-alfa/administração & dosagem , Polietilenoglicóis/administração & dosagem , Ribavirina/administração & dosagem , Adulto , Idoso , Antivirais/uso terapêutico , Estudos de Coortes , Quimioterapia Combinada , Feminino , Genótipo , Humanos , Interferon alfa-2 , Interferon-alfa/uso terapêutico , Masculino , Pessoa de Meia-Idade , Polietilenoglicóis/uso terapêutico , Proteínas Recombinantes/administração & dosagem , Proteínas Recombinantes/uso terapêutico , Estudos Retrospectivos , Ribavirina/uso terapêutico , Fatores de Tempo , Resultado do Tratamento
6.
Acta Med Okayama ; 68(4): 243-7, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25145410

RESUMO

Hepatitis B virus (HBV) is one of the major viruses causing acute hepatitis. Recently, the incidence of acute hepatitis with genotype A has been increasing in Japan. The aim of this study was to investigate acute hepatitis B (AHB) in Okayama prefecture, with special attention to HBV genotype A. AHB patients who visited one of 12 general hospitals in Okayama prefecture between 2006 and 2010 were retrospectively analyzed. Over the course of the study period, 128 patients were diagnosed with AHB. Sexual transmission was supposed in the majority of patients (78 patients, 61%), including 59 (76%) having sex with heterosexual partners. The genotypes of HBV were assessed in 90 patients (70%), of whom 27 patients were infected with genotype A, 5 with genotype B, and 58 with genotype C. The prevalence of genotype A was significantly higher among male patients (28.7%), aged 20-29 (35.6%, p<0.01), among men who had sex with men (100%, p<0.005), and among patients having sex with unspecified partners (44.8%, p<0.005). Genotype A was not a significant factor associated with delayed HBsAg disappearance. Caution should be exercised with regard to sexually transmissible diseases in order to slow the pandemic spread of AHB due to genotype A.


Assuntos
Vírus da Hepatite B/genética , Hepatite B/epidemiologia , Hepatite B/terapia , Adulto , Feminino , Genótipo , Humanos , Incidência , Japão/epidemiologia , Masculino , Pandemias , Prevalência , Fatores de Risco , Doenças Virais Sexualmente Transmissíveis/epidemiologia , Doenças Virais Sexualmente Transmissíveis/transmissão , Fatores de Tempo , Adulto Jovem
7.
Cancer Med ; 12(17): 17559-17568, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37537956

RESUMO

BACKGROUND AND AIMS: The IMbrave 150 trial revealed the usefulness of atezolizumab plus bevacizumab therapy in patients with unresectable hepatocellular carcinoma (HCC), making it now considered the first-line systemic chemotherapy agent for HCC. The present study investigated factors associated with early tumor progression of atezolizumab plus bevacizumab in patients with advanced HCC in real-world clinical practice. METHODS: A total of 184 HCC patients who received atezolizumab plus bevacizumab therapy were studied. We investigated the frequency of early progressive disease (e-PD; PD within 9 weeks) and analyzed the risk factors for e-PD. RESULTS: There were 47 patients (25.5%) diagnosed as e-PD. Patients with e-PD had a worse performance status (PS) and albumin-bilirubin (ALBI) and Child-Pugh (C-P) scores and a significantly higher rate of a systemic therapy than those with non-e-PD. A multivariate analysis showed that PS ≥1 (odds ratio [OR] = 4.5, 95% confidence interval [CI] = 1.9-10, p < 0.001), ALBI score ≥-2.30 (OR = 2.1, 95% CI = 1.0-4.5, p = 0.044) and the history of a systemic therapy (OR = 3.0, 95% CI = 1.4-6.4, p = 0.0038) were significant and independent determinants of e-PD. When examining the liver function trends in e-PD patients, the ALBI scores at 3 and 6 weeks after starting therapy were significantly higher than before the treatment (p < 0.001). CONCLUSIONS: The liver function and systemic therapy are useful predictors of e-PD in HCC patients treated with atezolizumab plus bevacizumab in real-world clinical practice.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , Humanos , Bevacizumab/efeitos adversos , Carcinoma Hepatocelular/tratamento farmacológico , Neoplasias Hepáticas/tratamento farmacológico , Anticorpos Monoclonais Humanizados/efeitos adversos , Albuminas , Bilirrubina
8.
J Med Virol ; 84(10): 1562-70, 2012 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-22930504

RESUMO

To clarify the factors associated with delayed reduction of HBV DNA during combination treatment with adefovir dipivoxil (ADV) and lamivudine (LAM) for patients with LAM-resistant hepatitis B virus (HBV), factors including patient characteristics, viral mutations, and drug metabolism were investigated during a 5-year observation period. Delayed reduction of HBV DNA was defined as delayed viral response of detectable HBV DNA after 3 years of combination therapy. Of 67 consecutive patients, 47 attained undetectable HBV DNA after 3 years of combination therapy, and the mean therapeutic duration was 5 years (range: 3.0-8.4 years). The patients with delayed viral response had high levels of HBV DNA and HBe antigen, while those with negative or low levels of HBe antigen were also negative for HBV DNA, even if they had high levels of HBV DNA. In the multivariate analysis with the proportional hazards model, a high baseline level of HBe antigen was negatively associated with viral decline to an undetectable level (P = 0.013). A higher baseline of HBe antigen corresponded to a lower annual decline in HBV DNA (R = -0.38, P = 0.004). No patients showed ADV-resistant mutations in the HBV reverse transcriptase region. Trough concentrations of LAM and ADV showed no clear associations with viral response. HBe antigen levels at the initiation of therapy, and reductions in these levels during therapy are predictive of the therapeutic response to combination therapy with ADV and LAM for patients with LAM-resistant HBV.


Assuntos
Adenina/análogos & derivados , Antivirais/administração & dosagem , Antígenos E da Hepatite B/sangue , Hepatite B Crônica/tratamento farmacológico , Lamivudina/administração & dosagem , Organofosfonatos/administração & dosagem , Carga Viral , Adenina/administração & dosagem , Adulto , Idoso , Estudos de Coortes , DNA Viral/sangue , Feminino , Hepatite B Crônica/virologia , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Tempo , Resultado do Tratamento
9.
J Gastroenterol Hepatol ; 27(8): 1320-8, 2012 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-22414162

RESUMO

BACKGROUND AND AIMS: Recent routine testing for anti-mitochondrial antibodies has increased the number of patients with early primary biliary cirrhosis (PBC). The prevalence and clinical significance of esophageal varices in those patients remains obscure. METHODS: A systematic cohort analysis of 256 PBC patients was performed to clarify the prevalence, characteristics, and prognosis of the patients with early PBC and esophageal varices. RESULTS: Twenty-two patients had esophageal varices at the time of diagnosis: 5.5% (12/217) with early disease of histological stage 1 or 2, and 25.6% (10/39) with advanced disease of stage 3 or 4. Immediate treatments were required for two patients with early PBC: one for bleeding varices, and the other for large varices. The overall survival of the patients with early PBC and esophageal varices at diagnosis did not significantly differ from that of patients without esophageal varices (P = 0.66). High alkaline phosphatase (ALP) ratios (odds ratio = 2.3) and low platelet counts (odds ratio = 0.77) were significantly associated with the presence of esophageal varices in the patients with early PBC. Significant associations of these two factors with the development of esophageal varices during follow-up were also revealed (odds ratio = 1.4 and 0.88, respectively). The patients with early PBC and high ALP ratios ≥ 1.9 had significantly high risks of developing esophageal varices during follow-up (P = 0.022). CONCLUSIONS: High ALP ratios and low platelet counts at diagnosis and decreased platelet counts during follow-up are useful predictors of esophageal varices in patients with early PBC.


Assuntos
Varizes Esofágicas e Gástricas/epidemiologia , Cirrose Hepática Biliar/epidemiologia , Adulto , Idoso , Fosfatase Alcalina/sangue , Biomarcadores/sangue , Diagnóstico Precoce , Varizes Esofágicas e Gástricas/diagnóstico , Varizes Esofágicas e Gástricas/mortalidade , Varizes Esofágicas e Gástricas/terapia , Feminino , Hemorragia Gastrointestinal/epidemiologia , Humanos , Japão/epidemiologia , Estimativa de Kaplan-Meier , Cirrose Hepática Biliar/diagnóstico , Cirrose Hepática Biliar/mortalidade , Cirrose Hepática Biliar/terapia , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Razão de Chances , Contagem de Plaquetas , Valor Preditivo dos Testes , Prevalência , Prognóstico , Modelos de Riscos Proporcionais , Medição de Risco , Fatores de Risco , Fatores de Tempo , Regulação para Cima
10.
Intern Med ; 61(8): 1151-1156, 2022 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-34670880

RESUMO

Pancreatic colloid carcinoma, also known as mucinous non-cystic carcinoma, is a rare subtype of pancreatic cancer accounting for 1-3% of the pancreatic malignant neoplasms. We herein report a woman who initially presented for acute pancreatitis. Computed tomography showed pancreatic swelling due to acute pancreatitis and a 16-mm mass with an enhanced margin in the pancreatic tail. We performed endoscopic ultrasound fine-needle aspiration. The patient was diagnosed with pancreatic colloid carcinoma, and distal pancreatectomy was performed. This case indicates that pancreatic colloid carcinoma should be considered as a differential diagnosis of pancreatic tumor presenting with acute pancreatitis.


Assuntos
Adenocarcinoma Mucinoso , Neoplasias Pancreáticas , Pancreatite , Doença Aguda , Adenocarcinoma Mucinoso/diagnóstico , Adenocarcinoma Mucinoso/diagnóstico por imagem , Feminino , Humanos , Neoplasias Pancreáticas/diagnóstico , Neoplasias Pancreáticas/diagnóstico por imagem , Pancreatite/complicações , Pancreatite/diagnóstico por imagem , Neoplasias Pancreáticas
11.
BMC Cancer ; 11: 458, 2011 Oct 21.
Artigo em Inglês | MEDLINE | ID: mdl-22014121

RESUMO

BACKGROUND: Hepatitis B virus (HBV) is a major cause of hepatocarcinogenesis.To identify mutations relevant to hepatocellular carcinoma (HCC) development, we compared the full genome sequences of HBV from the sera of patients with and without HCC. METHODS: We compared the full genome sequences of HBV isolates from 37 HCC patients (HCC group 1) and 38 patients without HCC (non-HCC group 1). We also investigated part of the core promoter region sequences from 40 HCC patients (HCC group 2) and 68 patients without HCC. Of the 68 patients who initially did not have HCC, 52 patients remained HCC-free during the follow-up period (non-HCC group 2), and 16 patients eventually developed HCC (pre-HCC group 2). Serum samples collected from patients were subjected to PCR, and the HBV DNA was directly sequenced. RESULTS: All patients had genotype C. A comparison of the nucleotide sequences of the HBV genome between HCC group 1 and non-HCC group 1 revealed that the prevalence of G1613A and C1653T mutations in the core promoter region was significantly higher in the HCC group. These mutations tended to occur simultaneously in HCC patients. Multivariate analysis with group 2 revealed that the presence of HCC was associated with aging and the double mutation. Future emergence of HCC was associated with aging and the presence of a single G1613A mutation. CONCLUSIONS: G1613A and C1653T double mutations were frequently found in patients with HCC. A single G1613A mutation was associated with future emergence of HCC. These mutations may serve as useful markers in predicting HCC development.


Assuntos
Carcinoma Hepatocelular/genética , Vírus da Hepatite B/genética , Hepatite B Crônica/complicações , Neoplasias Hepáticas/genética , Mutação , Regiões Promotoras Genéticas/genética , Adulto , Idoso , Carcinoma Hepatocelular/virologia , Análise Mutacional de DNA , DNA Viral/genética , Feminino , Genes Virais/genética , Genótipo , Humanos , Neoplasias Hepáticas/virologia , Masculino , Pessoa de Meia-Idade , Análise Multivariada
12.
J Gastroenterol Hepatol ; 26(9): 1395-401, 2011 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-21443659

RESUMO

BACKGROUND AND AIM: Ursodeoxycholic acid (UDCA) has been widely used in the treatment of patients with primary biliary cirrhosis (PBC). However, some patients are refractory to UDCA. The aim of this study is to clarify the additive improvement induced by bezafibrate in patients refractory to UDCA. METHODS: This study was a prospective analysis of 37 consecutive PBC patients. All patients were treated first for 6 months with UDCA, and then with bezafibrate, if their alkaline phosphatase (ALP) levels did not decrease more than 40% or within the normal range after 6 months' treatment with UDCA. Clinical parameters were monitored for the subsequent 24 months. RESULT: Twenty-two patients (59%) achieved improvement of ALP levels after the treatment with UDCA. Those patients (Group A) had significantly lower levels of ALP at diagnosis than those with abnormal ALP levels after 6 months' treatment with UDCA (Group B; P = 0.020). They continued UDCA monotherapy, and maintained normal ALP levels at subsequent follow ups. However, immunoglobulin M (IgM) levels remained abnormal in eight patients, whose IgM levels at the time of diagnosis were significantly higher than those whose IgM were normalized after 6 months' treatment with UDCA (P = 0.026). Those in Group B were treated additionally with bezafibrate, and 12 patients (80%) achieved normal ALP and IgM levels within 12 months of commencement of therapy. CONCLUSION: Higher ALP level at diagnosis is one of the predictors for UDCA failure. Combination treatment of bezafibrate in addition to UDCA may be an effective treatment for PBC patients refractory to UDCA.


Assuntos
Bezafibrato/uso terapêutico , Cirrose Hepática Biliar/tratamento farmacológico , Ácido Ursodesoxicólico/uso terapêutico , Adulto , Idoso , Fosfatase Alcalina/sangue , Biomarcadores/sangue , Resistência a Medicamentos , Quimioterapia Combinada , Feminino , Humanos , Imunoglobulina M/sangue , Japão , Cirrose Hepática Biliar/sangue , Cirrose Hepática Biliar/diagnóstico , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Fatores de Tempo , Falha de Tratamento
13.
Clin J Gastroenterol ; 13(6): 1083-1090, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-32886336

RESUMO

Immune checkpoint inhibitor-related liver injury usually appears as a hepatitis pattern, with a cholangitis pattern being a rare immune-related adverse event. We report a Japanese man in his fifties with immune checkpoint inhibitor-induced cholangitis and gastritis. The patient had been treated for approximately 7 months with carboplatin, pemetrexed sodium hydrate, and bevacizumab for an undifferentiated cancer of unknown primary, with metastases to the right pleura and nasolacrimal duct. The patient was then treated with immune checkpoint inhibitors, including 2 months of atezolizumab followed by 1 month of ramucirumab and docetaxel. Laboratory examinations showed elevated levels of biliary tract enzymes. He complained of generalized fatigue. Computed tomography revealed thickening of the gallbladder and external hepatic bile duct walls and the periportal collar sign. Endoscopic retrograde cholangiopancreatography was negative for bile duct obstruction but showed diffuse asymmetric irregular findings from the hilar region to the distal bile duct. Upper endoscopy showed diffuse irregular erosions and redness. Histopathological examination of specimens of bile duct and gastric mucosa revealed CD8-predominant inflammatory cell infiltrates. We diagnosed the findings as immunotherapy-induced cholangitis and gastritis. Because there are no published reports on immunotherapyinduced cholangitis combined with gastritis, we here report our patient as a rare case.


Assuntos
Colangite , Gastrite , Ductos Biliares , Colangiopancreatografia Retrógrada Endoscópica , Colangite/induzido quimicamente , Gastrite/induzido quimicamente , Humanos , Imunoterapia/efeitos adversos , Masculino
14.
Hepatol Res ; 39(6): 546-52, 2009 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-19254343

RESUMO

AIM: The average age of Japanese patients with drug-induced liver injury (DILI) is expected to rise as the population ages. The aim of this study was to evaluate the clinical characteristics of DILI in elderly Japanese subjects. METHODS: A total of 142 hospitalized patients with DILI were divided into three groups by age (Group A, < 65 years; Group B, 65-74 years; Group C, >/= 75 years). Patients were examined retrospectively with regard to the number of concomitant drugs, duration of drug intake until onset of DILI, clinical types of DILI, treatment, prognosis, and scores on the diagnostic scale described by Digestive Disease Week, Japan 2004. RESULTS: Patients in Group C used more concomitant drugs (P = 0.0019) compared with patients in Group A. The elderly had a higher frequency of unclear duration of drug intake (P = 0.0020), were more likely to experience cholestatic type DILI (P = 0.033), and underwent more intensive treatment for DILI (P = 0.011). There were fewer cases diagnosed as a "high possibility" of DILI in Group C compared with Group A (P = 0.030) and Group B (P = 0.013). In cases diagnosed as "possible" or "low possibility" of DILI, unclear duration of drug intake was more frequently observed in the elderly (P = 0.0027). CONCLUSION: Elderly patients with DILI show different clinical features than younger patients with DILI. These features should be taken into account in the diagnosis and treatment of DILI in the elderly.

15.
Intervirology ; 51(1): 59-68, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18349544

RESUMO

AIMS: To prospectively study whether occult hepatitis B virus (HBV) infection can promote the development of hepatocellular carcinoma (HCC) in patients with hepatitis C virus (HCV)-related chronic liver disease. In addition, to evaluate the difference among HBV DNA-negative patients and patients with high and low HBV copy numbers. METHODS: A total of 167 patients with HCV-related chronic liver disease without HBV surface antigen (HBsAg) were studied. HBV DNA in liver tissue was determined using polymerase chain reaction (PCR). RESULTS: HBV DNA was detected in 9 of 167 patients (5.4%) by single PCR and in 25 patients (15.0%) by nested PCR. HCC developed in 12 of 167 patients (7.2%). Ten of 142 HBV DNA-negative patients (7.0%) and 2 of 9 patients with a high HBV copy number (22.2%) developed HCC, whereas none of 16 patients with a low HBV copy number developed HCC. The incidence rate of HCC in patients with a high HBV copy number was significantly higher than in HBV DNA-negative patients and patients with low HBV copy number. CONCLUSION: A high amount of HBV DNA in liver tissue of HBsAg-negative patients with HCV-related liver disease might be associated with HCC development.


Assuntos
Carcinoma Hepatocelular/virologia , DNA Viral/isolamento & purificação , Vírus da Hepatite B/isolamento & purificação , Hepatite B/virologia , Hepatite C Crônica/complicações , Hepatite C Crônica/virologia , Fígado/virologia , Adulto , Idoso , Carcinoma Hepatocelular/epidemiologia , DNA Viral/genética , Feminino , Antígenos de Superfície da Hepatite B/sangue , Vírus da Hepatite B/genética , Humanos , Incidência , Hepatopatias , Masculino , Pessoa de Meia-Idade , Reação em Cadeia da Polimerase , Estudos Prospectivos
16.
J Gastroenterol Hepatol ; 23(5): 794-803, 2008 May.
Artigo em Inglês | MEDLINE | ID: mdl-18086120

RESUMO

BACKGROUND AND AIMS: A prospective, non-randomized cohort study on long-term lamivudine treatment, comparing efficacy, drug resistance, and prognosis for various stages of chronic hepatitis B virus (HBV)-related liver disease was performed to elucidate the significance and indication of lamivudine for individual patients at each stage of disease. METHODS: A total of 158 cases consisting of 87 chronic hepatitis, 28 compensated cirrhosis, and 43 decompensated cirrhosis, with serum HBV-DNA > 5 log(10) copies/mL and with elevated alanine aminotransferase (ALT) over twice the upper normal limit or complications of hepatic insufficiency, were administered 100 mg of lamivudine daily and monitored for HBV markers, biochemistry, and prognosis. RESULTS: Lamivudine reduced HBV-DNA and ALT equally in all groups. Serum albumin, prothrombin time (%), and platelet count increased in all groups. The increased margin of albumin was the highest in the decompensated cirrhosis and higher in the compensated cirrhosis than the chronic hepatitis groups. Cumulative incidence of virologic breakthrough was 16%, 42%, 49%, and 53% at 12, 24, 36, and 48 months, respectively, and the strongest predictive factor for lamivudine resistance was persistent HBV-DNA at 3 months. Ascites, encephalopathy, and jaundice improved in the majority of patients with decompensated cirrhosis. On the other hand, hepatic failure developed or deteriorated in 10 patients after virologic breakthrough, and nine of them had decompensated cirrhosis. CONCLUSIONS: Lamivudine was effective in reducing HBV-DNA and improving hepatic reserve at all stages and was most beneficial and significant for decompensated cirrhosis. Meanwhile, close monitoring of viral load and immediate rescue treatment for lamivudine resistance is necessary to prevent hepatic failure in decompensated cirrhosis.


Assuntos
Antivirais/uso terapêutico , Farmacorresistência Viral , Hepatite B Crônica/complicações , Hepatite B Crônica/tratamento farmacológico , Lamivudina/uso terapêutico , Cirrose Hepática/complicações , Cirrose Hepática/tratamento farmacológico , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Fatores de Tempo
17.
J Gastroenterol ; 41(7): 693-701, 2006 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-16933008

RESUMO

BACKGROUND: Long-term lamivudine treatment induces the emergence of lamivudine-resistant hepatitis B virus (HBV). The objective of this study was to develop a fluorescent biprobe hybridization (FBH) assay for the detection and quantification of HBV mutants in the clinical course of lamivudine-treated patients and to evaluate its clinical usefulness. METHODS: We developed an FBH assay to detect mutations in the HBV DNA polymerase gene. The assay's detection sensitivity was determined using a dilution series of wild-type/mutant plasmid DNA. Blood samples obtained from 27 lamivudine-treated patients were analyzed. RESULTS: Mutant DNA levels as low as 10% of total HBV DNA were detected (sensitivity = 100%, specificity = 80%). HBV mutants were detected in five of the 27 patients during an average follow-up of 20 months after lamivudine administration. In one of the five patients, the YIDD mutant was detected at the initiation of lamivudine treatment, while the remaining four patients were identified as having YIDD mutants within 3 months after beginning lamivudine administration. Of the five patients with an HBV mutant, four developed breakthrough hepatitis more than 10 months after the detection of HBV mutants, following the reappearance or a re-increase of HBV DNA, characterized by a predominance of the mutant. The YIDD mutant was detected in one patient, even when the titer of the serum HBV DNA was below the detection limit of commercially available quantitative polymerase chain reaction. CONCLUSIONS: The FBH assay is an efficient method for detecting and quantifying HBV mutants, as early as 3 months after lamivudine administration.


Assuntos
Antivirais/farmacologia , Farmacorresistência Viral/genética , Vírus da Hepatite B/efeitos dos fármacos , Hepatite B Crônica/tratamento farmacológico , Lamivudina/farmacologia , Mutação , Adulto , Antivirais/administração & dosagem , Antivirais/uso terapêutico , Sondas de DNA , DNA Polimerase Dirigida por DNA/genética , Feminino , Fluorometria , Vírus da Hepatite B/genética , Hepatite B Crônica/virologia , Humanos , Lamivudina/administração & dosagem , Lamivudina/uso terapêutico , Masculino , Pessoa de Meia-Idade , Hibridização de Ácido Nucleico/métodos , Sensibilidade e Especificidade , Temperatura de Transição
18.
Acta Med Okayama ; 60(2): 77-84, 2006 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-16680183

RESUMO

This study was conducted to develop a simple surrogate index comprised of routinely available laboratory tests to reflect the histological fibrosis stage. Clinical characteristics and laboratory data from 368 and 249 consecutive patients with chronic hepatitis C, a training cohort and a validation cohort, respectively, were retrospectively evaluated. Platelet (Plt) count and albumin (Alb) level contributed to the discrimination of the respective fibrosis stages. We derived the fibrosis index (FI), FI = 8.0-0.01 x Plt (10(3)/microliter) - Alb (g/dl), from a multiple regression model. FI significantly correlated with the histological fibrosis stage in both the initial and validation cohort at rho=0.691 and rho=0.661, respectively (Spearman's rank correlation coefficient, p<0.0001). The sensitivity and positive predictive value of FI at a cutoff value < 2.10 for predicting fibrosis stage F0-1 were 66.8% and 78.8% in the initial cohort and 68.5% and 63.6% in the validation cohort, respectively. Corresponding values of FI at a cutoff value > or = 3.30 for the prediction of F4 were 67.7% and 75.0% in the initial cohort and 70.8% and 81.0% in the validation cohort. The fibrosis index comprised of platelet count and albumin level reflected the histological fibrosis stage in patients with chronic hepatitis C.


Assuntos
Hepatite C Crônica/sangue , Cirrose Hepática/sangue , Albumina Sérica/metabolismo , Índice de Gravidade de Doença , Adulto , Estudos de Coortes , Feminino , Hepatite C Crônica/diagnóstico , Humanos , Cirrose Hepática/diagnóstico , Masculino , Pessoa de Meia-Idade , Contagem de Plaquetas
19.
Intern Med ; 44(9): 949-53, 2005 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-16258209

RESUMO

A 57-year-old woman was admitted due to a hemorrhage from esophageal varices. Laboratory tests showed liver dysfunction, elevated immunoglobulin G levels and positivity for anti-nuclear antibodies. Serum hepatitis B virus and hepatitis C virus markers were negative. The liver biopsy specimen was compatible with autoimmune hepatitis, and low-dose prednisolone was started. During the follow-up, her serum alanine aminotransferase levels continued to fluctuate between 40 and 60 IU/l. Nine years later, hepatocellular carcinoma 20 mm in diameter was detected. This case suggests that hepatocellular carcinoma develops even if serum alanine aminotransferase levels are maintained at less than twice the upper normal limit.


Assuntos
Carcinoma Hepatocelular/etiologia , Hepatite Autoimune/complicações , Neoplasias Hepáticas/etiologia , Corticosteroides/uso terapêutico , Alanina Transaminase/sangue , Anti-Inflamatórios/uso terapêutico , Carcinoma Hepatocelular/diagnóstico , Feminino , Hepacivirus/isolamento & purificação , Vírus da Hepatite B/isolamento & purificação , Hepatite Autoimune/tratamento farmacológico , Hepatite Autoimune/enzimologia , Hepatite Autoimune/virologia , Humanos , Neoplasias Hepáticas/diagnóstico , Pessoa de Meia-Idade , Prednisolona/uso terapêutico , Fatores de Tempo
20.
Acta Med Okayama ; 59(5): 217-24, 2005 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-16286955

RESUMO

Lamivudine is widely used to treat patients with hepatitis B. However, the outcomes in patients with hepatocellular carcinoma (HCC) treated with lamivudine have not been established. This study was conducted to evaluate the outcomes of lamivudine treatment for patients with HCC using an untreated, matched control group. Thirty patients with controlled HCC orally received lamivudine. As controls, 40 patients with HCC who were not treated with lamivudine and matched for clinical features were selected. The lamivudine-treated and untreated groups were compared with respect to changes in liver function, HCC recurrence, survival, and cause of death. In the lamivudine-treated group, there was significant improvement in the Child-Pugh score at 24 months after starting treatment, while no improvement was observed in the untreated group. There was no significant difference in the cumulative incidence of HCC recurrence and survival between the groups. However, there was a significant difference in the cumulative incidence of death due to liver failure (P= 0.043). A significant improvement in liver function was achieved by lamivudine treatment, even in patients with HCC. These results suggest that lamivudine treatment for patients with HCC may prevent death due to liver failure. Further prospective randomized studies using a larger number of patients are required.


Assuntos
Antivirais/uso terapêutico , Carcinoma Hepatocelular/complicações , Carcinoma Hepatocelular/tratamento farmacológico , Hepatite B/complicações , Hepatite B/tratamento farmacológico , Lamivudina/uso terapêutico , Neoplasias Hepáticas/complicações , Neoplasias Hepáticas/tratamento farmacológico , Adulto , Idoso , Antivirais/administração & dosagem , Carcinoma Hepatocelular/mortalidade , Carcinoma Hepatocelular/virologia , Feminino , Humanos , Lamivudina/administração & dosagem , Neoplasias Hepáticas/virologia , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia
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