HA had the best correlation with a correlation coefficient value of 0.62. These variables were included

in multivariate analysis and achieved an R square value of 0.511 to predict CPA. Using the backwards selection method, selleck chemicals three serum markers (HA, α2-macroglobulin and platelet count) which remained significant were included in the final model and achieved an R square value of 0.46 to predict CPA. Using this model the predicted CPA was calculated for each patient. The mean predicted CPA was 7.70 (range: 0.98-28.2) and the mean variance between the predicted and measured CPA was 2.78. The final model had an AUROC of 0.86 (95% CI, 0.78-0.95) to predict those patients with a CPA≥10% and a cut point of 8.7 had a sensitivity of 80.8% and specificity of 85.2%. The AUROC of the model to predict patients with a CPA ≥ 20% was 0.96 (95% CI, 0.91-1.00) and a cut point of 10.7 had a sensitivity of 100% and specificity of 89%. A similar predictive ability of the final

model was found in the validation set. Conclusion: This study has for the first time GSI-IX developed a serum biochemical model using CPA as the reference standard. The model has the potential to improve the prediction of liver related clinical outcomes and non-invasively measure changes liver collagen with the use of anti-fibrotic agents. Disclosures: Enrico Rossi – Patent Held/Filed, UNIVERSITY OF WA Gary P. Jeffrey – Advisory Committees or Review Panels: MSD, Novartis The following people have nothing to disclose: Yi Huang, Bastiaan de Boer, Leon Adams, Gerry C. MacQuillan, Max K. Bulsara Background and aims: Vitamin D deficiency was found to have impacts on both negative outcome of IFN-α2b/ribavirin treatment and severe liver fibrosis in chronic hepatitis C patients (CHC).

medchemexpress Researches proved that vitamin D binding protein (GC), rs7041 G>T, rs4588 C>A contribute to negative treatment response, while DHCR7 GG homozygosis involves in severe liver fibrosis. The study aimed to asses whether the GC, CYP2R1, DHCR7 can affect the outcome of combined therapy (IFN-α2b/ribavirin) and explore the relationship between those SNPs and liver fibrosis in CHC patients. Methods: 526 northern Chinese CHC patients were genotyped for the GC, CYP2R1_rs10741657, DHCR7_rs12785878 polymorphisms, 271 of them received a recombinant IFN-α2b/ribavirin combination for 48 weeks. 321 CHC patients who underwent liver stiffness measurement (fibroscan) were analyzed. Results: The genotype distributions of those SNPs in CHC patients did not deviate from H-W equilibrium. Analysis results between SNPs and treatment response are presented in table. After multiple analysis (adjusted factors: gender, HCV RNA baseline, IL28B C/C), CYP2R1 AA genotype can predict successful treatment response (OR=2.89, 95% CI=1.32-6.28, P = 0.008 for RVR; OR=3.67, 95% CI=1.17-11.50, P = 0.