Results: CK18 levels were higher in theNA^LD activity score (NAS)>5 than NAS<4 (675.1 U/L vs 348.7 U/L; p<0.0001). The receiver operating characteristic curve indicated a cutoff value of 375 U/L, with specificity, 81.5%; Selumetinib sensitivity, 65%; and positive and negative

predictive values, 80.8% and 43.1%, respectively, for the diagnosis NAS>5. The serum CK18 levels correlated with those of ALT (r=0.49, p<0.0001), AST (r=0.47, p<0.0001), ferritin (r=0.42, p<0.0001), TIMP-1 (r=0.44, p<0.0001), and procollagen III peptide (r = 0.31, p<0.0001) and with HOMA-IR (r=0.33, p<0.0001). In addition, the serum CK18 levels were associated with lobular and portal inflammations, hepatocellular ballooning, and Mallory body formation, but not with steatosis. Among the 71 patients who required a second liver biopsy, 19 with fibrosis progression had significantly high mean CK1 8 levels (from 539 to 907 U/L, p<0.01) and the NAS score increased from 5.2 to 6.1 (p<0.05). In contrast, a significant decrease was noted in the mean CK18 levels

(from 637.3 to 468.7 U/L, p<0.001) and NAS score (from 5.8 to 4.1, p<0.0001) in 52 patients with static or improved fibrosis. Conclusion: CK18 levels were significantly elevated in NASH/NAFLD patients with fibrosis progression, but not in patients with static or improved fibrosis. Careful monitoring of serum CK18 Small molecule library levels may be useful in predicting fibrosis progression in NASH. Disclosures: The following people have nothing to disclose: Miwa Kawanaka, Ken Nishino, Jun Nakamura, Takahito Oka, Noriyo Urata, Daisuke Goto, Mitsuhiko Suehiro, Hircfumi Kawamoto, Gotaro Yamada Nonalcoholic fatty liver disease (NAFLD) is rapidly increasing in prevalence and will become the number one cause of liver disease worldwide by 2020. NAFLD is associated with high triglycerides (TG), high low-density lipoprotein cholesterol (LDLC) levels, and low high-density lipoprotein cholesterol (HDL-C) levels. Both

NAFLD and blood lipid levels are genetically influenced and may share a common genetic etiology. Purpose: We aimed to identify genes 上海皓元 and pathways enriched for genetic associations with both blood lipids and NAFLD using human genome wide association study (GWAS) data. Methods: We examined whether genome wide, significantly associated lipid SNP sets from publicly available HDL-C, LDL-C and TG GWAS analyses (N=99, 000) were enriched for associations with hepatic steatosis, the hallmark of NAFLD, measured using computed tomography(CT) (N=7, 126, Speliotes, PLoS Gen, 2011). We then used gene set enrichment analysis (GSEA) as implemented in MAGENTA to identify pathways enriched in HDL-C, LDL-C, and TG GWAS analyses.