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The prognostic value of phosphatidylinositol-4,5-bisphosphate 3-kinase,catalytic subunit alpha (PIK3CA) in patients with esophageal squamous cell carcinoma (ESCC) is controversial.We aimed to investigate the prognostic significance of PIK3CA mutation in patients with ESCC.EMBASE,PubMed,and Web of Science databases were systematically searched from inception through Oct.3,2016.The hazard ratios (HRs) and 95％ confidence intervals (CI) were calculated using a random effects model for overall survival (OS) and disease-free survival (DFS).Seven studies enrolling 1505 patients were eligible for inclusion of the current meta-analysis.Results revealed that PIK3CA mutation was not significantly associated with OS (HR:0.90,95％ CI:0.63-1.30,P=0.591),with a significant heterogeneity (I2=65.7％,P=0.012).Additionally,subgroup analyses were further conducted according to various variables,such as types of specimen,the sample size,technique and statistical methodology.All results suggested that no significant relationship was found between PIK3CA mutation and OS in patients with ESCC.For DFS,there was no significant association between PIK3CA mutation and DFS in patients with ESCC (HR:1.00,95％ CI=0.47-2.11,P=0.993,I2=73.7％).Publication bias was not present and the results of sensitivity analysis were very stable in the current meta-analysis.Our findings suggest that PIK3CA mutation has no significant effects on OS and DFS in ESCC patients.More well-designed prospective studies with better methodology for PIK3CA assessment are required to clarify the prognostic significance of PIK3CA mutation in ESCC patients.
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Patients with acute-on-chronic hepatitis B liver failure (HBV-ACLF) show high morbidity and mortality. Independent prognostic predictors of short-term HBV-ACLF mortality include the Child-Turcotte-Pugh (CTP) score, the model for end-stage liver disease (MELD) score, other MELD-based indices and the dynamic changes in these indices. The aims of this study were to evaluate the existing prognostic scores in a large cohort of HBV-ACLF patients and create a new predictive model. We retrospectively reviewed 392 HBV-ACLF patients from December 2008 to November 2011 and evaluated their 3-month survival. The predictive accuracy of CTP, MELD and MELD-based indices and the dynamic changes in the MELD-related scores (Δ scoring systems) upon admission and after two weeks of treatment were compared using the area under the receiver operating characteristic (ROC) curve method. Life-threatening factors and a series of bio-clinical parameters were studied by univariate and multivariate analyses. Among the existing scores, MELD had the best predictive ability. However, our new regression model provided an area under the curve of 0.930 ± 0.0161 (95% CI: 0.869 to 0.943), which was significantly larger than that obtained with the MELD score at admission and after two weeks of treatment as well as with the dynamic changes of the MELD score (0.819, 0.921, and 0.826, respectively) (Z=3.542, P=0.0004). In a large cohort of patients retrospectively reviewed for this study, our prognostic model was superior to the MELD score and is, therefore, a promising predictor of short-term survival in patients with HBV-ACLF.
Assuntos
Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Doença Aguda , Doença Crônica , Hepatite B , Falência Hepática , PrognósticoRESUMO
Patients with acute-on-chronic hepatitis B liver failure (HBV-ACLF) show high morbidity and mortality. Independent prognostic predictors of short-term HBV-ACLF mortality include the Child-Turcotte-Pugh (CTP) score, the model for end-stage liver disease (MELD) score, other MELD-based indices and the dynamic changes in these indices. The aims of this study were to evaluate the existing prognostic scores in a large cohort of HBV-ACLF patients and create a new predictive model. We retrospectively reviewed 392 HBV-ACLF patients from December 2008 to November 2011 and evaluated their 3-month survival. The predictive accuracy of CTP, MELD and MELD-based indices and the dynamic changes in the MELD-related scores (Δ scoring systems) upon admission and after two weeks of treatment were compared using the area under the receiver operating characteristic (ROC) curve method. Life-threatening factors and a series of bio-clinical parameters were studied by univariate and multivariate analyses. Among the existing scores, MELD had the best predictive ability. However, our new regression model provided an area under the curve of 0.930±0.0161 (95% CI: 0.869 to 0.943), which was significantly larger than that obtained with the MELD score at admission and after two weeks of treatment as well as with the dynamic changes of the MELD score (0.819, 0.921, and 0.826, respectively) (Z=3.542, P=0.0004). In a large cohort of patients retrospectively reviewed for this study, our prognostic model was superior to the MELD score and is, therefore, a promising predictor of short-term survival in patients with HBV-ACLF.
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OBJECTIVE@#To evaluate the protective effect of recombinant human granulocyte colony stimulating factor (rhG-CSF) on acute hepatic failure induced by galactosamine (D-GalN) and lipopolysaccharide (LPS) in mice, and to explore its mechanism.@*METHODS@#The mice were intraperitoneally administered D-GalN (800 mg/kg) and LPS (10 microg/kg), and then were intraperitoneally injected either saline (the control group )or rhG-CSF at 300 microg/kg body weight (the therapy group) at 4 h, 2 h and 0 h before the D-GalN/LPS injection. The survival rate of the mice was estimated at 24 h after the D-GalN/LPS injection. The degree of hepatic injury was evaluated at 6 h after the D-GalN/LPS injection, and the levels of TNF-alpha, IFN-gamma, IL-6 and IL-10 mRNA were simultaneously measured by semiquantitative RT-PCR.@*RESULTS@#The survival rate of the therapy group was significantly higher than that of the control group (68.4% vs 20%, P<0.01). As compared with the control group, the degree of liver injury in the therapy group significantly decreased (P<0.05), and the levels of TNF-alpha and IFN-gamma mRNA in the hepatic tissue also reduced remarkably (P<0.01, respectively), while the levels of IL-6 and IL-10 mRNA increased (P<0.01, respectively) at 6 h after the D-GalN/LPS injection.@*CONCLUSION@#G-CSF can protect the mice from acute hepatic failure induced by D-GalN/LPS.