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1.
BMC Infect Dis ; 23(1): 707, 2023 Oct 20.
Artigo em Inglês | MEDLINE | ID: mdl-37864131

RESUMO

BACKGROUND: This study's objective was to investigate the predictors for severe anemia, severe leukopenia, and severe thrombocytopenia when amphotericin B deoxycholate-based induction therapy is used in HIV-infected patients with talaromycosis. METHODS: A total of 170 HIV-infected patients with talaromycosis were enrolled from January 1st, 2019, to September 30th, 2020. RESULTS: Approximately 42.9%, 20.6%, and 10.6% of the enrolled patients developed severe anemia, severe leukopenia, and severe thrombocytopenia, respectively. Baseline hemoglobin level < 100 g/L (OR = 5.846, 95% CI: 2.765 ~ 12.363), serum creatinine level > 73.4 µmol/L (OR = 2.573, 95% CI: 1.157 ~ 5.723), AST/ALT ratio > 1.6 (OR = 2.479, 95% CI: 1.167 ~ 5.266), sodium level ≤ 136 mmol/liter (OR = 4.342, 95% CI: 1.747 ~ 10.789), and a dose of amphotericin B deoxycholate > 0.58 mg/kg/d (OR = 2.504, 95% CI:1.066 ~ 5.882) were observed to be independent risk factors associated with the development of severe anemia. Co-infection with tuberculosis (OR = 3.307, 95% CI: 1.050 ~ 10.420), and platelet level (per 10 × 109 /L) (OR = 0.952, 95% CI: 0.911 ~ 0.996) were shown to be independent risk factors associated with the development of severe leukopenia. Platelet level < 100 × 109 /L (OR = 2.935, 95% CI: 1.075 ~ 8.016) was identified as the independent risk factor associated with the development of severe thrombocytopenia. There was no difference in progression to severe anemia, severe leukopenia, and severe thrombocytopenia between the patients with or without fungal clearance at 2 weeks. 10 mg on the first day of amphotericin B deoxycholate was calculated to be independent risk factors associated with the development of severe anemia (OR = 2.621, 95% CI: 1.107 ~ 6.206). The group receiving a starting amphotericin B dose (10 mg, 20 mg, daily) exhibited the highest fungal clearance rate at 96.3%, which was significantly better than the group receiving a starting amphotericin B dose (5 mg, 10 mg, 20 mg, daily) (60.9%) and the group receiving a starting amphotericin B dose (5 mg, 15 mg, and 25 mg, daily) (62.9%). CONCLUSION: The preceding findings reveal risk factors for severe anemia, severe leukopenia, and severe thrombocytopenia. After treatment with Amphotericin B, these severe adverse events are likely unrelated to fungal clearance at 2 weeks. Starting amphotericin B deoxycholate at a dose of 10 mg on the first day may increase the risk of severe anemia but can lead to earlier fungal clearance. TRIAL REGISTRATION: ChiCTR1900021195. Registered 1 February 2019.


Assuntos
Anemia , Infecções por HIV , Leucopenia , Trombocitopenia , Humanos , Anfotericina B/efeitos adversos , Antifúngicos/uso terapêutico , Estudos Prospectivos , Quimioterapia de Indução , Anemia/induzido quimicamente , Anemia/tratamento farmacológico , Leucopenia/induzido quimicamente , Leucopenia/tratamento farmacológico , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Trombocitopenia/induzido quimicamente , Trombocitopenia/tratamento farmacológico
2.
Mol Cell Biochem ; 477(11): 2481-2491, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-33983562

RESUMO

The effects of hepatocyte steatosis on hepatitis B virus (HBV) DNA replication and HBV-related antigen secretion are incompletely understood. The aims of this study are to explore the effects and mechanism of hepatocyte steatosis on HBV replication and secretion. Stearic acid (SA) and oleic acid (OA) were used to induce HepG2.2.15 cell steatosis in this study. The expressions of glucose-regulated protein 78 (GRP78), phosphorylation of protein kinase R-like endoplasmic reticulum (ER) kinase (p-PERK), and eukaryotic translation initiation factor 2α (p-eIF2α) were detected by Western blotting (WB). HBV DNA, HBsAg, and HBeAg in the supernatant were determined by real-time fluorescent polymerase chain reaction (PCR) and enzyme-linked immunosorbent assay. Intracellular HBV DNA, HBsAg level, and HBV RNA were measured by real-time fluorescent PCR, WB, and real-time quantitative reverse transcriptase-PCR, respectively. The results showed that SA and OA significantly increased intracellular lipid droplets and triglyceride levels. SA and OA significantly induced GRP78, p-PERK, and p-eIF2α expressions from 24 to 72 h. 4-phenylbutyric acid (PBA) alleviated ER stress induced by SA. SA promoted intracellular HBsAg and HBV DNA accumulation; however, it inhibited the transcript of HBV 3.5 kb mRNA and S mRNA. The secretion of HBsAg and HBV DNA inhibited by SA or OA could be partially restored by pretreatment with PBA but not by inhibiting GRP78 expression with siRNA. Hepatocyte steatosis inhibits HBsAg and HBV DNA secretion via induction of ER stress in hepatocytes, but not via induction of GRP78.


Assuntos
Antígenos de Superfície da Hepatite B , Vírus da Hepatite B , Vírus da Hepatite B/genética , Antígenos de Superfície da Hepatite B/genética , Antígenos de Superfície da Hepatite B/metabolismo , Antígenos de Superfície da Hepatite B/farmacologia , Estresse do Retículo Endoplasmático , DNA Viral/farmacologia , Hepatócitos/metabolismo , Fator de Iniciação 2 em Eucariotos , RNA Mensageiro , Replicação Viral
3.
J Gastroenterol Hepatol ; 36(9): 2375-2382, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-33491236

RESUMO

BACKGROUND AND AIM: This single-arm, open-label, multicenter, phase 3 trial evaluated the efficacy and safety of seraprevir, an hepatitis C virus (HCV) nonstructural protein 3/4A (NS3/4A) inhibitor, combined with sofosbuvir for treating Chinese patients with chronic HCV infection without cirrhosis. METHODS: Treatment-naive or interferon-experienced adult patients without cirrhosis were treated with a universal, combinational regimen of seraprevir 100 mg, twice daily and sofosbuvir 400 mg, once daily, for 12 or 24 weeks. The primary efficacy endpoint was sustained virologic response at week 12 after treatment (SVR12). RESULTS: Overall, 205 patients with genotype 1 HCV infection without cirrhosis were enrolled from 23 sites, 202 of whom completed the full treatment and post-treatment course and 3 discontinued follow-up. In total, 27 patients (13.2%) were interferon experienced. SVR12 was achieved by 201 out of 205 (98.0% [95% CI, 95.1%, 99.5%]) patients, 100.0% of patients with genotype 1a, and 98.0% of genotype 1b. In the other exploratory study, SVR 12 was achieved by 100% patients with genotype 2 (n = 21), genotype 3 (n = 7), and genotype 6 (n = 8). The majority of adverse events were mild to moderate and transient and did not require a specific medical intervention. CONCLUSIONS: The all-oral, ribavirin-free regimen of seraprevir and sofosbuvir is an effective and well-tolerated treatment option for Chinese patients mono-infected with HCV, including those with a history of interferon treatment.


Assuntos
Hepatite C Crônica , Sofosbuvir , Proteínas não Estruturais Virais , Adulto , Antivirais/efeitos adversos , China/epidemiologia , Quimioterapia Combinada , Genótipo , Hepacivirus/genética , Hepatite C Crônica/tratamento farmacológico , Hepatite C Crônica/genética , Humanos , Cirrose Hepática/epidemiologia , Sofosbuvir/efeitos adversos , Resultado do Tratamento , Proteínas não Estruturais Virais/efeitos adversos , Proteínas não Estruturais Virais/antagonistas & inibidores
4.
Ann Hepatol ; 19(1): 79-87, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-31548168

RESUMO

INTRODUCTION AND OBJECTIVES: Necroptosis and endoplasmic reticulum (ER) stress has been implicated in acute and chronic liver injury. Activated eukaryotic initiation factor 2 alpha (eIF2α) attenuates protein synthesis and relieves the load of protein folding in the ER. In this study, we aimed to analyze the impact of eIF2α phosphorylation on hepatocyte necroptosis in acute liver injury. MATERIALS AND METHODS: Male BALB/c mice were injected with tunicamycin or d-galactosamine, and LO2 cells were incubated with tunicamycin to induce acute liver injury. 4-Phenylbutyric acid (PBA) and salubrinal were used to inhibit ER stress and eIF2α dephosphorylation, respectively. We analyzed the eIF2α phosphorylation, ER stress, and hepatocyte necroptosis in mice and cells model. RESULTS: Tunicamycin or d-galactosamine significantly induced ER stress and necroptosis, as well as eIF2α phosphorylation, in mice and LO2 cells (p<0.05). ER stress aggravated tunicamycin-induced hepatocyte necroptosis in mice and LO2 cells (p<0.05). Elevated eIF2α phosphorylation significantly mitigated hepatocyte ER stress (p<0.05) and hepatocyte necroptosis in mice (34.37±3.39% vs 22.53±2.18%; p<0.05) and LO2 cells (1±0.11 vs 0.33±0.05; p<0.05). Interestingly, tumor necrosis factor receptor (TNFR) 1 protein levels were not completely synchronized with necroptosis. TNFR1 expression was reduced in d-galactosamine-treated mice (p<0.05) and cells incubated with tunicamycin for 12 and 24h (p<0.05). ER stress partially restored TNFR1 expression and increased necroptosis in tunicamycin-incubated cells (p<0.05). CONCLUSIONS: These results imply that ER stress can mediate hepatocyte necroptosis independent of TNFR1 signaling and elevated eIF2α phosphorylation can mitigate ER stress during acute liver injury.


Assuntos
Doença Hepática Induzida por Substâncias e Drogas/metabolismo , Estresse do Retículo Endoplasmático/fisiologia , Fator de Iniciação 2 em Eucariotos/metabolismo , Hepatócitos/metabolismo , Necroptose/fisiologia , Receptores Tipo I de Fatores de Necrose Tumoral/metabolismo , Animais , Antibacterianos/toxicidade , Western Blotting , Linhagem Celular , Sobrevivência Celular , Doença Hepática Induzida por Substâncias e Drogas/patologia , Cinamatos/farmacologia , Modelos Animais de Doenças , Estresse do Retículo Endoplasmático/efeitos dos fármacos , Galactosamina/toxicidade , Hepatócitos/efeitos dos fármacos , Hepatócitos/patologia , Humanos , Técnicas In Vitro , Camundongos , Necroptose/efeitos dos fármacos , Fenilbutiratos/farmacologia , Fosforilação , Tioureia/análogos & derivados , Tioureia/farmacologia , Tunicamicina/toxicidade
5.
Croat Med J ; 60(6): 532-544, 2019 Dec 31.
Artigo em Inglês | MEDLINE | ID: mdl-31894919

RESUMO

AIM: To investigate the impact of alpha subunit of eukaryotic initiation factor 2 (eIF2α) phosphorylation on liver regeneration. METHODS: Male BALB/c mice were intraperitoneally injected with carbon tetrachloride (CCl4) to induce liver injury. Human hepatocyte LO2 cells were incubated with thapsigargin to induce endoplasmic reticulum (ER) stress. Salubrinal, integrated stress response inhibitor (ISRIB), and DnaJC3 overexpression were used to alter eIF2α phosphorylation levels. RESULTS: CCl4 administration induced significant ER stress and eIF2α phosphorylation, and increased hepatocyte proliferation proportionally to the extent of injury. Inhibiting eIF2α dephosphorylation with salubrinal pretreatment significantly mitigated liver injury and hepatocyte proliferation. In LO2 cells, thapsigargin induced significant eIF2α phosphorylation and inhibited proliferation. Inhibiting eIF2α dephosphorylation partly restored cell proliferation during ER stress. CONCLUSIONS: In acute liver injury, inhibiting eIF2α dephosphorylation protects injured hepatocytes and reduces hepatocyte proliferation.


Assuntos
Doença Hepática Induzida por Substâncias e Drogas/metabolismo , Fator de Iniciação 2 em Eucariotos/metabolismo , Hepatócitos/fisiologia , Regeneração Hepática , Animais , Apoptose , Tetracloreto de Carbono , Proliferação de Células/efeitos dos fármacos , Cinamatos/metabolismo , Estresse do Retículo Endoplasmático , Inibidores Enzimáticos/farmacologia , Proteínas de Choque Térmico HSP40/metabolismo , Humanos , Masculino , Camundongos , Camundongos Endogâmicos BALB C , Fosforilação , Tapsigargina/farmacologia , Tioureia/análogos & derivados , Tioureia/metabolismo
6.
Gut ; 67(4): 757-766, 2018 04.
Artigo em Inglês | MEDLINE | ID: mdl-28130311

RESUMO

OBJECTIVE: Acute-on-chronic liver failure (ACLF) is an extreme condition after severe acute exacerbation of chronic hepatitis B; however, the underlying genetic factors involved in its onset and progression are currently unclear. DESIGN: We carried out a genome-wide association study among 399 HBV-related ACLFs (cases) and 401 asymptomatic HBV carriers (AsCs, as controls) without antiviral treatment. The initial findings were replicated in four independent case-control sets (a total of 901 ACLFs and 1686 AsCs). The roles of risk variants on clinical traits of ACLF were also analysed. RESULTS: Among 1300 ACLFs and 2087 AsCs, we identified rs3129859 at human leucocyte antigen (HLA) class II region (chromosome 6p21.32) associated with HBV-related ACLF (combined P dominant =2.64×10-20, OR=1.83). Analysis identified HLA-DRB1*12:02 as the top susceptible HLA allele associated with ACLF (p=3.94×10-6, OR=2.05). The association of rs3129859 was robust in ACLF subgroups (ACLFs with liver cirrhosis, p=1.36×10-16; ACLFs without liver cirrhosis, p=1.52×10-7), and patients at low-replicative phase (p=6.36×10-11, OR=2.29) or HBV e antigen-negative chronic hepatitis B phase (p=1.51×10-14, OR=1.86). Clinical traits analysis in patients with ACLF showed that the risky rs3129859*C allele was also associated with prolonged prothrombin time, faster progression to ascites development and higher 28-day mortality. CONCLUSIONS: Our genome-wide association study identified HLA-DR as the major locus for susceptibility to HBV-related ACLF. Our findings highlight the importance of HLA class II restricted CD4+ T-cell pathway on the immunopathogenesis of HBV-related ACLF.


Assuntos
Insuficiência Hepática Crônica Agudizada/genética , Estudo de Associação Genômica Ampla , Antígenos HLA-DR/genética , Insuficiência Hepática Crônica Agudizada/mortalidade , Adulto , Alelos , Índice de Massa Corporal , Estudos de Casos e Controles , Feminino , Estudo de Associação Genômica Ampla/métodos , Genótipo , Vírus da Hepatite B , Hepatite B Crônica , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Fenótipo , Polimorfismo de Nucleotídeo Único/genética
7.
Hepatol Res ; 48(9): 692-700, 2018 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-29336092

RESUMO

AIM: The aim of this study was to develop and validate a scoring system to predict the progression to acute-on-chronic liver failure (ACLF) in patients with acute exacerbation (AE) of chronic hepatitis B (CHB). METHODS: The baseline characteristics of 474 patients with AE of CHB were retrospectively reviewed; 280 and 194 patients were randomly assigned to the derivation and validation cohorts, respectively. Univariate risk factors associated with ACLF development were entered into a multivariate logistic regression. The score model was established, and its predictive value was evaluated by the receiver operating characteristic (ROC) curve and the area under the ROC curve (AUROC). RESULTS: Hepatitis B virus (HBV) DNA, international normalized ratio (INR) of prothrombin time, and patient age were identified as independent risk factors associated with progressing to ACLF. The prediction model was established as R = -13.323 + 0.553 × log HBV-DNA (copies/mL) + 3.631× INR + 0.053 × age. The AUROCs of our prediction model were higher than those of the Model for End-stage Liver Disease (MELD) and MELD-sodium (Na) for both cohorts. At the cut-off value of -2.43, our prediction model had higher sensitivity (87.5%), specificity (73.6%), positive predictive value (23.0%), positive likelihood ratio (3.30), and lower negative likelihood ratio (0.17) in the validation cohort than those of MELD and MELD-Na. CONCLUSION: The independent risk factors associated with progressing to ACLF in patients with AE of CHB are HBV-DNA, INR, and age. Our risk prediction model is useful for predicting the development of ACLF.

8.
Wilderness Environ Med ; 26(3): 380-3, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-26228492

RESUMO

Wild mushroom poisoning is often reported to cause acute liver or renal failure. However, acute rhabdomyolysis caused by wild mushroom poisoning has rarely been reported. We describe 7 patients of 1 family with Russula subnigricans Hongo poisoning. Their clinical manifestations varied from gastrointestinal symptoms to rhabdomyolysis, with 1 fatality. Our report provides supporting evidence that rhabdomyolysis may result from ingestion of R subnigricans mushrooms. A key to survival for patients with rhabdomyolysis caused by R subnigricans poisoning may be early recognition and intensive supportive care.


Assuntos
Gastroenteropatias/diagnóstico , Gastroenteropatias/terapia , Intoxicação Alimentar por Cogumelos/diagnóstico , Intoxicação Alimentar por Cogumelos/terapia , Rabdomiólise/diagnóstico , Rabdomiólise/terapia , Adolescente , Adulto , Basidiomycota/fisiologia , China , Evolução Fatal , Feminino , Gastroenteropatias/microbiologia , Gastroenteropatias/fisiopatologia , Humanos , Masculino , Pessoa de Meia-Idade , Intoxicação Alimentar por Cogumelos/microbiologia , Intoxicação Alimentar por Cogumelos/fisiopatologia , Rabdomiólise/microbiologia , Rabdomiólise/fisiopatologia , Resultado do Tratamento , Adulto Jovem
9.
Mol Cell Biochem ; 389(1-2): 151-8, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24390087

RESUMO

The molecular mechanisms of impaired liver regeneration in several liver diseases remain poorly understood. Endoplasmic reticulum (ER) stress has been observed in a variety of liver diseases. The aims of this study were to explore the impacts of ER stress on hepatocyte growth factor (HGF)-induced proliferation and c-Met expression in human hepatocyte L02 cells. Human hepatocyte L02 cells were incubated with thapsigargin (TG) to induce ER stress. 4-Phenylbutyric acid (PBA) was used to rescue ER stress. Activation of glucose-regulated protein 78, phosphorylation of PKR-like ER kinase and eukaryotic translation initiation factor-2α, and the expression of c-Met were determined by western blotting. The expression of c-Met mRNA was observed by reverse transcription polymerase chain reaction. L02 cell proliferation was determined by the MTS assay. L02 cell proliferation was significantly impaired in TG-treated L02 cells from 24 to 48 h, while PBA partly restored the proliferation of L02 cells. In addition, TG treatment significantly decreased the sensitivity of L02 cells to HGF-induced proliferation. PBA partly resumed the sensitivity of L02 cells to HGF-induced proliferation. The expression of c-Met protein in L02 cells was downregulated from 6 h after TG treatment, and PBA partly restored c-Met expression inhibited by TG. The expression of c-Met mRNA was also significantly downregulated from 24 to 48 h after TG treatment. Our results strongly suggest that sustained ER stress inhibits hepatocyte proliferation via downregulation of both c-Met mRNA and protein expression in human hepatocyte L02 cells.


Assuntos
Regulação para Baixo/genética , Estresse do Retículo Endoplasmático/genética , Expressão Gênica/genética , Hepatócitos/metabolismo , Proteínas Proto-Oncogênicas c-met/genética , Linhagem Celular , Proliferação de Células , Proteínas de Choque Térmico HSP70/genética , Fator de Crescimento de Hepatócito/genética , Humanos , Proteínas de Membrana/genética , Fosforilação/genética
10.
Hepatogastroenterology ; 61(135): 2021-7, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25713905

RESUMO

BACKGROUND/AIMS: The aims of this study are to explore the effects of epidermal growth factor (EGF) on hepatocyte proliferation in presence of plasma from patients with acute liver failure (ALF). METHODOLOGY: HepG2 cells were cultured with 50% plasma from patients with ALF for 6, 12, 24, 48 and 72h with or without different concentrations of EGF. Cell proliferation was determined by the MTT assay and intracellular cyclin D1, cyclin-dependent kinase 4 (CDK4) expressions were analyzed by western blotting. RESULTS: The proliferation of HepG2 cells was significantly inhibited by treatment with plasma from patients with ALF from 12 to 72 h. Intracellular expression of cyclin D1 and CDK4 was also markedly down-regulated. 5ng/ml, 10ng/ml and 20ng/ml EGF dose dependently induced HepG2 proliferation in presence of plasma from normal control, but only 20ng/ml EGF showed a transient promoting effect on proliferation of HepG2 cells in presence of plasma from patients with ALF. CONCLUSIONS: Plasma from patients with ALF inhibits HepG2 cell proliferation via downregulation of cyclin D1 and CDK4 expression. Plasma from patient with ALF dampens HepG2 cells to EGF induced proliferation response.


Assuntos
Carcinoma Hepatocelular/metabolismo , Proliferação de Células/efeitos dos fármacos , Fator de Crescimento Epidérmico/farmacologia , Falência Hepática Aguda/sangue , Neoplasias Hepáticas/metabolismo , Adolescente , Adulto , Apoptose/efeitos dos fármacos , Carcinoma Hepatocelular/patologia , Estudos de Casos e Controles , Ciclina D1/metabolismo , Quinase 4 Dependente de Ciclina/metabolismo , Relação Dose-Resposta a Droga , Feminino , Células Hep G2 , Humanos , Neoplasias Hepáticas/patologia , Masculino , Pessoa de Meia-Idade , Fatores de Tempo
11.
Zhonghua Gan Zang Bing Za Zhi ; 22(1): 33-7, 2014 Jan.
Artigo em Zh | MEDLINE | ID: mdl-24721241

RESUMO

OBJECTIVE: To determine the risk factor of HCC in Guizhou. METHODS: A group case-control study design was conducted between 762 cases and 798 controls in Guizhou province. The main related-factors were analyzed with unconditional logistic regression model and evaluated by odds ratio (OR) and 95% confidence interval (95% CI). RESULTS: There are significant differences between cases and controls in regarding to cigarette smoking 210 (27.6%),non-alcoholic fatty liver disease 336 (44.1%), alcoholic liver disease 245 (32.2%), family history of HCC 141 (16.5%), alcohol consumption 300 (39.4%), HBV infection 436 (57.2%), pickled food 290 (38.1%), and economic status 5 years ago 420 (55.1%) in cases,and cigarette smoking 116 (14.5%),non-alcoholic fatty liver disease 160 (20.1%), alcoholic liver disease 101 (12.7%), family history of HCC 40 (5.0%), alcohol consumption 180 (22.6%), HBV infection 82 (10.3%), pickled food 225 (28.2%), and economic status 5 years ago 647 (81.1%) in controls, with OR of each variable was 3.520, 2.464, 4.330, 2.219, 2.451, 19.245, 6.212, 0.174 respectively, P less than 0.01. CONCLUSION: HBV infection and pickled food were the most common risks for HCC in Guizhou. Alcohol consumption excessively and cigarette smoking may increase the risk too.


Assuntos
Carcinoma Hepatocelular/epidemiologia , Neoplasias Hepáticas/epidemiologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Consumo de Bebidas Alcoólicas , Carcinoma Hepatocelular/etiologia , Estudos de Casos e Controles , China/epidemiologia , Comportamento Alimentar , Feminino , Hepatite B/epidemiologia , Humanos , Neoplasias Hepáticas/etiologia , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Adulto Jovem
12.
Dig Liver Dis ; 56(4): 648-655, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37758609

RESUMO

BACKGROUND: The pathogenesis involved in glucose metabolism disorders (GMDs) in patients with liver cirrhosis remains unclear. AIMS: We investigated the effects of acute-on-chronic liver failure (ACLF) development and bacterial infections (BIs) on pancreatic ß-cell function and glucose homeostasis in individuals with liver cirrhosis. METHODS: A retrospective analysis was conducted on 327 patients experiencing acute deterioration of liver cirrhosis. Oral glucose tolerance tests (OGTTs) and OGTT-based ß-cell function indices were employed to assess ß-cell function and glucose homeostasis. Univariate and multivariate logistic regression analyses were employed to identify GMD-associated risk factors. RESULTS: Both the development of ACLF and BIs significantly increased the prevalence of GMDs. Both ACLF and BIs markedly elevated the homeostasis model of assessment 2-insulin resistance (HOMA2-IR). ACLF significantly impaired glucose-stimulated insulin secretion, as evidenced by reduced insulinogenic index (IGI). Patients with GMDs exhibited significantly lower IGI levels than those without GMDs. Independent risk factors associated with GMDs were prothrombin activity (odds ratio [OR]=0.981, 95% confidence interval [CI]: 0.960-0.995), HOMA2-IR (OR=1.749, 95% CI: 1.130-2.707), and IGI (OR=0.963, 95% CI: 0.947-0.978). CONCLUSIONS: In liver cirrhosis, the onset of ACLF impairs glucose-stimulated insulin secretion from ß-cells. Both liver impairment and BIs contribute to increased insulin resistance, ultimately disturbing glucose homeostasis.


Assuntos
Insuficiência Hepática Crônica Agudizada , Infecções Bacterianas , Resistência à Insulina , Humanos , Insuficiência Hepática Crônica Agudizada/complicações , Estudos Retrospectivos , Cirrose Hepática/complicações , Glucose , Homeostase , Infecções Bacterianas/complicações , Glicemia/metabolismo
13.
J Clin Transl Hepatol ; 11(3): 649-660, 2023 Jun 28.
Artigo em Inglês | MEDLINE | ID: mdl-36969889

RESUMO

Background and Aims: Tenofovir amibufenamide (TMF) is a novel phosphoramidated prodrug of tenofovir with noninferior efficacy and better bone and renal safety to tenofovir disoproxil fumarate (TDF) in 48 weeks of treatment. Here, we update 96-week comparison results. Methods: Patients with chronic hepatitis B were assigned (2:1) to receive either 25 mg TMF or 300 mg TDF with matching placebo for 96 weeks. The virological suppression was defined as HBV DNA levels <20 IU/mL at week 96. Safety was evaluated thoroughly with focusing on bone, renal, and metabolic parameters. Results: Virological suppression rates at week 96 were similar between TMF and TDF group in both HBeAg-positive and HBeAg-negative populations. Noninferior efficacy was maintained in the pooled population, while it was first achieved in patients with HBV DNA ≥7 or 8 log10 IU/mL at baseline. Non-indexed estimated glomerular filtration rate for renal safety assessment was adopted, while a smaller decline of which was seen in the TMF group than in the TDF group (p=0.01). For bone mineral density, patients receiving TMF displayed significantly lower reduction levels in the densities of spine, hip, and femur neck at week 96 than those receiving TDF. In addition, the lipid parameters were stable after week 48 in all groups while weight change still showed the opposite trend. Conclusions: TMF maintained similar efficacy at week 96 compared with TDF with continued superior bone and renal safety profiles (NCT03903796).

14.
Front Cell Infect Microbiol ; 12: 721138, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35273920

RESUMO

Background and Aim: To investigate the short-term dynamic changes and the factors associated with regression of glucose metabolism disorders in patients with hepatitis flare of chronic hepatitis B virus (HBV) infection. Methods: In this study, 118 patients with severe hepatitis flare of chronic HBV infection were prospectively studied. Oral glucose tolerance test was performed on admission and during follow-up to evaluate dynamic changes in glucose metabolism disorders. The factors associated with regression of glucose metabolism disorders were identified using univariate and multivariate logistic regression analyses. Results: The prevalence of diabetes was significantly higher in 70 (47.1%) patients with liver cirrhosis than that in 48 (16.8%) patients without liver cirrhosis. The prevalence of impaired glucose tolerance in patients with liver cirrhosis (35.7%) was significantly lower than that in patients without liver cirrhosis (47.8%). After a follow-up of 20.0 ± 18.7 days, 28 of 31 (90.3%) patients without liver cirrhosis experienced regression of glucose metabolism disorders. Additionally, 30 (54.5%) patients with liver cirrhosis experienced regression of glucose metabolism disorders after 42.0 ± 36.2 days. In patients with liver cirrhosis, those with regression of glucose metabolism disorders had significantly higher levels of homeostasis model assessment-ß-cell function, albumin (ALB), and a significantly lower level of fibrosis-4 score. ALB was identified as an independent factor associated with the regression of glucose metabolism disorders in patients with liver cirrhosis. Conclusion: Severe acute liver inflammation aggravates glucose metabolism disorders in patients with hepatitis B-related liver cirrhosis and high ALB level is associated with regression of glucose metabolism disorders upon resolution of acute liver inflammation.


Assuntos
Diabetes Mellitus , Hepatite B Crônica , Hepatite B , Albuminas , Hepatite B/complicações , Vírus da Hepatite B , Hepatite B Crônica/complicações , Humanos , Inflamação/complicações , Cirrose Hepática/complicações , Cirrose Hepática/metabolismo , Exacerbação dos Sintomas
15.
Infect Dis Ther ; 11(5): 1839-1851, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-36151452

RESUMO

INTRODUCTION: The aims of this study were to investigate the risk factors for bacterial infections (BIs) and the association of BIs with the progression to acute-on-chronic liver failure (ACLF) in patients with hepatitis B virus (HBV)-related compensated liver cirrhosis and severe hepatitis flares. METHODS: A total of 237 patients were retrospectively reviewed. Baseline biochemical characteristics were compared between patients with and without the occurrence of BIs and progression to ACLF. Univariate and multivariate logistic regression analyses were used to identify independent risk factors for ACLF before and after 1:1 propensity score matching. RESULTS: Forty-eight (20.3%) patients progressed to ACLF after admission. Additionally, 136 (57.4%) patients progressed to hepatic decompensation (HD) and 52 (21.9%) patients had BIs before the development of ACLF. Patients with BIs had significantly higher incidences of HD (84.6%) and ACLF (46.2%) than those without BIs (49.7% and 13.0%, respectively; P < 0.01). CTP score (OR 1.660, 95% CI 1.267-2.175) and MELD-Na score (OR 1.082, 95% CI 1.010-1.160) were independent risk factors for BIs. BIs (OR 4.037, 95% CI 1.808-9.061), CLIF-SOFA score (OR 2.007, 95% CI 1.497-2.691), and the MELD-Na score (OR 1.167, 95% CI 1.073-1.260) were independent risk factors for the progression to ACLF. BIs (OR 4.730, 95% CI 1.520-14.718) were also an independent risk factor for the progression to ACLF after propensity score matching. CONCLUSION: High CTP and MELD-Na scores are risk factors for BIs, and BIs are risk factors for the progression to ACLF in patients with HBV-related compensated liver cirrhosis and severe hepatitis flares.

16.
Front Physiol ; 13: 1006657, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36237519

RESUMO

We aimed to validate the performance of the ratio of the platelet count (PLT) to liver stiffness measurement (LSM) in excluding high-risk varices (HRVs) in patients with hepatitis B virus (HBV)-related compensated cirrhosis beyond Baveno VI criteria. A total of 310 patients were assessed. The performances of the PLT:LSM ratio (PLER), PLER adjusted for the international normalized ratio, etiology, age, and sex (PLEASE), and the sequential algorithm for HRV screening (VariScreen) in excluding HRVs were evaluated and compared with those of expanded Baveno VI criteria (LSM <25 kPa and PLT >110×109/L, EB6C); PLT >150×109/L and model for end-stage liver disease score = 6 (P150M6 criterion); PLT >120×109/L and albumin >36 g/L (P120A36 criterion); and albumin-bilirubin (ALBI) grade and PLT score (ALBI-PLT score). Among the enrolled patients, 43 (13.9%) had HRVs. The area under the receiver operating characteristic curve of PLER for predicting HRVs (0.771, 95% confidence interval, 0.720-0.817) was significantly higher than that for PLT and LSM (p < 0.01). PLER was an independent risk factor for HRVs. VariScreen, PLEASE, and PLER could spare 20 (6.5%), 91 (29.4%), and 60 (19.4%) endoscopies, with 0, 3 (3.3%), and 1 (1.7%) HRVs missed, respectively. The EB6C and P120A36 criteria could spare 45 (14.5%) and 36 (11.6%) endoscopies, with 1 (2.2%) and 1 (2.8%) HRVs missed, respectively. The P150M6 criterion and ALBI-PLT score missed 6.8% and 10.3% of HRVs, respectively. We found that PLER performed better than other non-invasive tests. VariScreen secured the screening of HRVs in patients with HBV-related cirrhosis beyond Baveno VI criteria.

17.
Biomed Pharmacother ; 153: 113397, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-36076480

RESUMO

BACKGROUND: 7,8-Dihydroxyflavone (DHF) mimicks the physiological action of brain-derived neurotrophic factor (BDNF). Since local BDNF delivery to the injured spinal cord enhanced diaphragmatic respiratory function, we aimed to ascertain whether DHF might have similar beneficial effects after Brown-Sequard Syndrome in a rat model of spinal cord lateral hemisection (HX) at the 9th thoracic (T9) vertebral level. METHODS: Three sets of adult female rats were included: sham+vehicle group, T9HX+vehicle group and T9HX+DHF group. On the day of surgery, HX+DHF group received DHF (5 mg/kg) while HX+vehicle group received vehicle. Neurobehavioral function, morphology of motor neurons innervating the tibialis anterior muscle and the transmission in descending motor pathways were evaluated. RESULTS: Adult female rats received T9 HX had paralysis and loss of proprioception on the same side as the injury and loss of pain and temperature on the opposite side. We found that, in this model of Brown-Sequard syndrome, reduced cord dendritic arbor complexity, reduced cord motoneuron numbers, enlarged cord lesion volumes, reduced motor evoked potentials, and cord astrogliosis and microgliosis were noted after T9HX. All of the above-mentioned disorders showed recovery by Day 28 after surgery. Therapy with DHF significantly accelerated the electrophysiological, histological and functional recovery in these T9HX animals. CONCLUSIONS: Our data provide a biological basis for DHF as a neurotherapeutic agent to improve recovery after a Brown-Sequard syndrome. Such an effect may be mediated by synaptic plasticity and glia-mediated inflammation in the spared lumbar motoneuron pools to a T9HX.


Assuntos
Síndrome de Brown-Séquard , Traumatismos da Medula Espinal , Animais , Fator Neurotrófico Derivado do Encéfalo/metabolismo , Síndrome de Brown-Séquard/tratamento farmacológico , Feminino , Flavonas , Ratos , Medula Espinal/metabolismo , Traumatismos da Medula Espinal/complicações , Traumatismos da Medula Espinal/tratamento farmacológico , Traumatismos da Medula Espinal/patologia
18.
Hepatol Int ; 15(3): 593-601, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-33389677

RESUMO

BACKGROUND AND AIM: The aim of this study was to evaluate the accuracy of serum markers of liver fibrosis for predicting progression to acute-on-chronic liver failure (ACLF) in patients with acute exacerbation (AE) and severe AE (SAE) of chronic hepatitis B virus (HBV) infection. METHODS: The predictive accuracy of aminotransferase-to-platelet ratio index (APRI), Fibrosis-4, Lok index, and Forns index for progression to ACLF was evaluated via receiver operating characteristic (ROC) curve and area under the ROC (AUROC) in 441 and 130 patients with AE and SAE. RESULTS: After admission, 24 (5.8%) and 25 (19.2%) patients with AE and SAE, respectively, progressed to ACLF. The Lok index was one of the independent risk factors associated with progression to ACLF in patients with AE and SAE. The AUROC of Lok index for diagnosing liver cirrhosis was 0.815 (0.774-0.851) in patients with AE and 0.715 (0.629-0.791) in patients with SAE. The AUROC of Lok index for predicting progression to ACLF in patients with AE and SAE was 0.756 (0.711-0.797) and 0.866 (0.795-0.919), respectively. In patients with AE and SAE, the cut-off values of the Lok index for predicting ACLF were higher and lower, respectively, than those for diagnosing liver cirrhosis. CONCLUSION: The Lok index has predictive accuracy regarding progression to ACLF in patients with AE and SAE. Different thresholds of liver fibrosis are needed for determining progression to ACLF in patients with different severity of liver injury during acute exacerbation of chronic HBV infection.


Assuntos
Insuficiência Hepática Crônica Agudizada , Hepatite B Crônica , Cirrose Hepática , Insuficiência Hepática Crônica Agudizada/diagnóstico , Insuficiência Hepática Crônica Agudizada/etiologia , Hepatite B Crônica/complicações , Humanos , Cirrose Hepática/diagnóstico , Cirrose Hepática/etiologia , Prognóstico , Curva ROC , Estudos Retrospectivos , Índice de Gravidade de Doença
19.
Hepatol Int ; 15(5): 1093-1102, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-34373965

RESUMO

BACKGROUND/PURPOSE: Associations between the disturbances in glucose homeostasis and prognosis in patients with hepatitis B virus (HBV)-related acute-on-chronic liver failure (ACLF) remain unclear. This study was conducted to investigate the clinical characteristics of disturbances in glucose homeostasis and their associations with 90-day mortality in patients with HBV-related ACLF. METHODS: Ninety-six patients with HBV-related ACLF without pre-existing diabetes were prospectively included. Glucose abnormalities were diagnosed based on fasting plasma glucose and oral glucose tolerance test results on admission and during follow-up. Homeostasis model assessment was used to establish insulin resistance (HOMA2-IR), insulin sensitivity (HOMA2-IS) and HOMA2-ß-cell function (HOMA2-ß). Multivariate Cox proportional hazards analysis was used to identify independent risk factors for death within 90 days after admission. RESULTS: Among 96 patients with ACLF, 51 (53.1%) had diabetes, 29 (30.2%) had impaired glucose tolerance (IGT), and 17 (17.7%) had hypoglycemia. Patients with diabetes had significantly lower levels of HOMA2-ß than did patients with normal glucose tolerance. Of 22 patients with diabetes or IGT and without anti-hyperglycemic treatment, 8 (36.4%) exhibited regression of their glucose metabolism disorders after a follow-up of 32.8 ± 28.8 days, and higher platelet levels were associated with regression. Twenty-five patients (25.0%) with ACLF died of liver failure within 90 days. Diabetes [odds ratio (OR) 3.601, 95% confidence interval (CI) 1.342-9.661] and age (OR 1.045, 95% CI 1.010-1.082) were the independent risk factors associated with mortality. CONCLUSION: Impaired pancreatic ß-cell function is related to diabetes development, and diabetes is associated with high mortality in patients with chronic HBV-related ACLF.


Assuntos
Insuficiência Hepática Crônica Agudizada , Diabetes Mellitus , Hepatite B Crônica , Hepatite B , Diabetes Mellitus/epidemiologia , Vírus da Hepatite B , Hepatite B Crônica/complicações , Humanos , Prognóstico
20.
Aliment Pharmacol Ther ; 54(9): 1134-1149, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34587302

RESUMO

BACKGROUND: Tenofovir amibufenamide (TMF) can provide more efficient delivery than tenofovir disoproxil fumarate (TDF). AIM: To compare the efficacy and safety of TMF and TDF for 48 weeks in patients with chronic hepatitis B (CHB). METHODS: We performed a randomised, double-blind, non-inferiority study at 49 sites in China. Patients with CHB were assigned (2:1) to receive either 25 mg TMF or 300 mg TDF with matching placebo. The primary efficacy endpoint was the proportion of patients with hepatitis B virus (HBV) DNA less than 20 IU/mL at week 48. We also assessed safety, particularly bone, renal and metabolic abnormalities. RESULTS: We randomised 1002 eligible patients. The baseline characteristics were well balanced between groups. After a median 48 weeks of treatment, the non-inferiority criterion was met in all analysis sets. In the HBeAg-positive population, 50.2% of patients receiving TMF and 53.7% receiving TDF achieved HBV DNA less than 20 IU/mL. In the HBeAg-negative population, 88.9% and 87.8%, respectively, achieved HBV DNA less than 20 IU/mL in the TMF and TDF groups. Patients receiving TMF had significantly less decrease in bone mineral density at both hip (P < 0.001) and spine (P < 0.001), and a smaller increase in serum creatinine at week 48 (P < 0.05). Other safety results were similar between groups. CONCLUSION: TMF was non-inferior to TDF in terms of anti-HBV efficacy and showed better bone and renal safety. (NCT03903796).


Assuntos
Hepatite B Crônica , Antivirais/efeitos adversos , DNA Viral , Antígenos E da Hepatite B , Vírus da Hepatite B/genética , Hepatite B Crônica/tratamento farmacológico , Humanos , Tenofovir/efeitos adversos , Resultado do Tratamento , Carga Viral
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