As shown in

As shown in Supporting Table S3 and Fig. 2A, 15 differentially expressed spots were successfully identified. According to annotations from Genecards (http://www.genecards.org/index.shtml) and the Gene Ontology Database, the identified cellular proteins were involved in the stress response, the cytoskeleton, and signal transduction and metabolism. To verify the DIGE results, clone 1 and 2 cells were further analyzed by way of western blotting. The up-regulation of heat shock protein 27 (HSP27) was verified by way of western check details blotting (Figs. 2C, 3A). Several reports have shown

that HSP27 is a terminal substrate of the p38 mitogen-activated protein kinase (MAPK) cascade,22, 23 and activation of p38 results in the phosphorylation of HSP27. Therefore, we assessed the level of phosphorylation of HSP27 (phospho-Ser15 and phospho-Ser82) and p38 MAPK (phospho-Tyr182). As shown in Fig. 3A,B, increased phosphorylation of HSP27 (phospho-Ser82 and phospho-Ser15) and p38 MAPK (phospho-Tyr182) were observed in clone 1 and 2 cells. Previous studies have reported that activated p38 MAPK increases the metastatic potential of cancer cell by up-regulating the expression of matrix metalloproteinase 2 (MMP-2). We quantified the levels of secreted MMP-2 in clone 1 and 2 cell culture. As shown in Fig. 3C, miR-17-5p increased MMP-2 secretion in HCC cells. These

results indicate that the p38 MAPK-HSP27 signaling pathway might be activated in pEZX-17-5p-Huh-7 cells (clone 1 and Urease 2). These phenomena were also observed in HepG2 cells (Supporting Fig. S1A). We did not detect any changes in HSP27 transcription levels after

miR-17-5p up-regulation (data not shown). To detect whether miR-17-5p enhances HSP27 stability, we treated clone 1 and 2 cells with the protein synthesis inhibitor cycloheximide and proteasome inhibitor MG-132 as described in the Supporting Information. As shown in Fig. 3D, MG-132 abolished the changes in HSP27 expression levels between miR-17-5p overexpressed and control cells, but cycloheximide did not. Our data suggest that miR-17-5p reduces the rate of HSP27 degradation and enhances its stability. To elucidate the crucial role of the p38 MAPK pathway and total HSP27 levels in the activation of HSP27, we performed western blotting in clone 1 cells treated with the p38 MAPK inhibitor SB203580 or transfected with small interfering RNA (siRNA) against HSP27. As shown in Fig. 4A,B, HSP27 phosphorylation (both phospho-Ser15 and phospho-Ser82) was reduced by treatment with SB203580 and siRNAs against HSP27. These results indicate that activation of p38 MAPK and total HSP27 levels are essential for HSP27 phosphorylation. One proven target gene of miR-17-5p is E2F1,15 which modulates p38 MAPK phosphorylation through transcriptional regulation of Wip1.

The underlying mechanisms remain unclear Mismatch negativity (MM

The underlying mechanisms remain unclear. Mismatch negativity (MMN) is an auditory event-related potential that reflects an attentional trigger. Patients with schizophrenia show impaired attention and cognitive function, which are reflected in altered MMN. We hypothesized that patients with MHE, similarly to those with schizophrenia, should show MMN alterations related with attention deficits. The aims of this work were to assess whether (1) MMN is

altered Cytoskeletal Signaling inhibitor in cirrhotic patients with MHE, compared to those without MHE, (2) MMN changes in parallel with performance in attention tests and/or MHE in a longitudinal study, and (3) MMN predicts performance in attention tests and/or in the Psychometric Hepatic Encephalopathy Score (PHES). We performed MMN analysis as well as attention and coordination tests in 34 control subjects and in 37 patients with liver cirrhosis without MHE and 23 with MHE. Patients with MHE show reduced performance in selective and sustained attention tests and in visuomotor and bimanual coordination tests. The MMN wave area was reduced in patients with MHE, but not in those without

MHE. In the longitudinal study, MMN area improved in parallel with performance in attention tests and PHES in 4 patients and worsened in parallel in another 4. Logistic regression analyses showed that MMN area predicts performance in attention tests and in PHES, but not in other tests or critical flicker frequency. Receiver operating characteristic curve analyses showed that MMN area predicts attention deficits in the number connection http://www.selleckchem.com/products/ly2157299.html tests A and B, Stroop tasks, and MHE, with sensitivities of 75%-90% and specificities of 76%-83%. Conclusion: MMN area is useful to diagnose

attention deficits and MHE in patients with liver cirrhosis. (HEPATOLOGY 2012;) Approximately 33%-50% of patients with liver cirrhosis without clinical symptoms of learn more encephalopathy show minimal hepatic encephalopathy (MHE), which can be unveiled using psychometric tests or neurophysiological analysis.1-4 Patients with MHE show attention deficits and mild cognitive impairment. MHE reduces quality of life and is associated with increased risk of suffering with work, driving, and home accidents as well as clinical hepatic encephalopathy (HE) and reduced life span.5-10 Attention deficits are an early manifestation of MHE.11-16 Amodio et al.16 reported that MHE affects primarily selective attention control. Weissenborn et al.15 reported that patients with MHE show dysfunction in all attention subsystems. The brain areas involved in the attention system and the alterations in attention in MHE were previously summarized.15, 16 However, how MHE alters attention systems, which components are affected, and the underlying mechanisms remain unknown.

RT-PCR was applied to measure the gene expression of apoptosis-as

RT-PCR was applied to measure the gene expression of apoptosis-associated genes, Bcl-2 and Bax, and also to detect the FASN gene expression. Results: HCC cells treated with EGCG exhibited significant cell shrinkage, chromatin condensation, and the formation of apoptotic bodies with Hoechst 33258 staining. The highest apoptosis rate was 28.6% Selleckchem Inhibitor Library in 160 μmol/L EGCG-treated groups measured by low cytometry. RT-PCR analysis indicated that Bcl-2 and FASN gene expression were significantly decreased with the increasing of EGCG concentration. Conclusion: EGCG can inhibit cell proliferation,

and induce apoptosis of HCC cells, this effect may be related to inhibition of tumor cell apoptosis-associated genes Bcl-2 and the expression of endogenous FASN. Key Word(s): 1. EGCG; 2. Apoptosis; 3. Fatty acid synthase; 4. HepG2; Presenting Author: JEFFEY GEORGE Additional Authors: VARGHESE THOMAS Corresponding Author: JEFFEY GEORGE Affiliations: GIOVERNMENT; GOVERNMENT Objective: To assess the effect of short course prednisolone in comparision with UDCA (Ursodeoxycholic acid) in the management of patients with

cholestatic viral hepatitis A. Methods: Patients diagnosed as acute hepatitis A with cholestasis having serum bilirubin level more than 10 mg/dl and with pruritus of grade 3 or 4 were enrolled and randomized into group A (UDCA 20 mg/kg/day for 4 weeks) and group B (prednisolone 0.75 mg/kg/day for 4 weeks). LFT and clinical parameters were recorded weekly for a maximum of 6 weeks. Primary endpoints were a fall 5-Fluoracil solubility dmso this website in bilirubin to 3 mg/dl and/or reduction in pruritus by 2 grades. Mean time to clearance of jaundice and pruritis were compared. Results: 40 patients (34 males) were studied (group A = 20, group B = 20). Two were excluded, one due to protocol violation

and another due to steroid induced mild pancreatitis which resolved within a few days. Mean time to clearance of jaundice was 49.7 days (21–85) in group A versus 36.3 days (14–82) in Group B (p = 0.02). Maximum treatment response was seen at day 17 in steroid arm (p < 0.01). Mean time to resolution of pruritus was 34.9 days (16–62) versus 20.7 (7–69) respectively (p < 0.01). Adverse effects noted were acne vulgaris in 2, facial puffiness in 1 and pedal edema in 1 patient in the steroid arm and 2 patients with skin infection in the UDCA arm. Conclusion: CONCLUSION: Short course prednisolone treatment hastens recovery from jaundice and improves pruritus in patients with acute hepatitis A with cholestasis as against treatment with UDCA. Short course treatment with prednisolone is inexpensive and without major side effects. Key Word(s): 1. Prednisolone; 2. Cholestasis; 3. Viral hepatitis A; 4.

(HEPATOLOGY 2012) Combination therapy with peginterferon alfa/rib

(HEPATOLOGY 2012) Combination therapy with peginterferon alfa/ribavirin (P/R) has been the standard approach to the management of chronic hepatitis C virus (HCV) infections for the last decade. Sustained virological response (SVR) rates of 54% to 56% were achieved in the pivotal trials of peginterferon alfa-2a and peginterferon alfa-2b with ribavirin.1, 2 Patients with genotype 1 HCV infections had lower SVR rates (approximately 40%) and required 48 weeks of therapy, whereas higher SVR rates were attained by patients with genotype 2 or 3 infections despite shorter treatment durations.1-5 The troublesome array of toxicities Decitabine order associated

with interferon-based therapy led to retrospective analyses of the pivotal trial databases, and these analyses culminated in the identification of robust early stopping rules for futility. It was consistently observed for genotype 1 infections that a failure to attain a ≥2-log reduction in the baseline HCV RNA level by week 12 of therapy was associated with a negative predictive value for SVR of 97% to 100%,1, 6 and this

observation was INK 128 cell line incorporated into routine clinical practice early in the era of peginterferon-based therapy.7 This response-guided paradigm has spared many patients destined to fail P/R therapy the futile prolongation of treatment with its attendant side effects and additional costs. Furthermore, the retreatment of interferon-nonresponders has demonstrated that patients with detectable HCV RNA at week 12 of P/R therapy rarely achieve SVR.8 The recently licensed nonstructural 3/4A serine protease inhibitors [boceprevir (Victrelis, Merck, Whitehouse Station, NJ) and telaprevir (Incivek, Vertex Pharmaceuticals, Cambridge, MA)] must be given with P/R because of their low barrier to viral resistance when they are used as monotherapy.9, 10 In contrast to conventional P/R therapy, virological failure with protease

inhibitor–based combination therapy is often attended by the selection of viral variants with resistance to protease inhibitors. This resistance may emerge early during treatment before impending failure becomes apparent by standard monitoring.9-15 The pivotal trials of boceprevir included a this website 4-week P/R lead-in period for all patients followed by the addition of boceprevir at the beginning of the fifth week. The duration of treatment varied among the different arms of each study. The Serine Protease Inhibitor Therapy 2 (SPRINT-2) study demonstrated that the addition of boceprevir to standard P/R therapy significantly improved SVR rates in previously untreated patients.11 The Retreatment With HCV Serine Protease Inhibitor Boceprevir and Pegintron/Rebetol 2 (RESPOND-2) study likewise demonstrated superior response rates with boceprevir plus P/R in patients who had partially responded to or relapsed after a standard course of P/R alone.

[21, 22] In this mini review, we briefly summarize the hepatoprot

[21, 22] In this mini review, we briefly summarize the hepatoprotective functions of IL-22, highlight our recent findings about the effects of IL-22 on LPCs and HSCs, and discuss the therapeutic potential of IL-22 for the treatment of ALD. Numerous studies suggest that IL-22 plays key roles in the prevention of hepatocellular damage in a variety

of liver injury models.[10-15] IL-22 was first found to be hepatoprotective against murine liver injury induced by Concanavalin A (Con A), carbon tetrachloride, and Fas ligand,[10, 11] and was later confirmed in many other liver injury models.[12-15] IL-22 Cell Cycle inhibitor protects against hepatocyte damage and promotes hepatocyte proliferation by activating the STAT3 signaling pathway. Autophagy Compound Library price Activation of STAT3 subsequently leads to upregulation of a variety of anti-apoptotic (e.g. Bcl-2, Bcl-xL, Mcl-1) and mitogenic (e.g. c-myc, cyclin D1, Rb2, CDK4) genes, resulting in hepatoprotective effects

under conditions of liver injury.[10] The hepatoprotective functions of IL-22 were further supported in genetically modified mice where IL-22 transgenic mice with overexpression of IL-22 were resistant to Con A-induced liver injury,[19] while IL-22 deficient mice were highly susceptible to such injury.[12] In addition, IL-22 treatment ameliorated high fat diet (HFD)- or ethanol-induced liver lipogenesis and hepatic steatosis.[16, 18] IL-22 administration reduced HFD-induced elevation of serum alanine aminotransferase and aspartate aminotransferase (AST) levels, and partially inhibited HFD-induced upregulation of lipogenesis-related genes that are involved in lipid synthesis in the liver. Additionally, IL-22 treatment prevented

liver injury in mouse models induced by chronic-binge ethanol feeding[16] or acute ethanol challenge.[17] Finally, IL-22 was also shown to promote liver cell proliferation in vitro through the activation of AKT and STAT3 signaling; this mitogenic effect was abrogated by overexpression of suppressor of cytokine signaling-1/3, which inhibited STAT3 activation.[23] In a liver selleck inhibitor regeneration model, the levels of serum IL-22 protein and hepatic IL-22R1 mRNA expression were significantly increased after 70% partial hepatectomy. Blockage of IL-22 with administration of an anti-IL-22 antibody before partial hepatectomy significantly decreased hepatocytes proliferation.[20] In agreement with the results from partial hepatectomy model, liver ischemia-reperfusion injury is also associated with elevation of hepatic IL-22 and IL-22R1 expression.[14] Although injection of an IL-22 neutralizing antibody did not exacerbate liver ischemia-reperfusion injury, treatment of mice with recombinant IL-22 protein markedly ameliorated serum AST levels, improved cardinal histological features of ischemia-reperfusion damage (Suzuki’s score), and abrogated leukocyte sequestration.

The presence of anti-HBs at baseline is borderline associated wit

The presence of anti-HBs at baseline is borderline associated with HBsAg reverse seroconversion. However, the role of the kinetics of anti-HBs titers on HBV reactivation is unclear. Methods: Eighty CD20-positive lymphoma patients with RHB were randomized to receive either prophylactic entecavir (ETV)

prior to chemotherapy to 3 months after completing chemotherapy (ETV prophylactic group, n=41) or therapeutic ETV at the time of HBV reactivation and HBsAg reverse seroconversion since chemotherapy (control group, NVP-AUY922 mw n=39). Among them, 58 were positive for anti-HBs by qualitative assay. Serial anti-HBs titers during rituximab treatment were determined for those cases. Results: Patients in the ETV group received mean 7.2 cycles of rituximab-based chemotherapy, while patients in the control group received mean 6.5 cycles. During a mean 1 8 months of follow-up, 1 (2.4%) patient in the ETV prophylactic group and 7 (1 7.9%) in the control group developed HBV reactivation (P=0.027). The control group had a higher incidence of HBsAg reverse seroconversion (1 0.3% vs 0%). Among patients positive for anti-HBs, the anti-HBs titers significantly declined after rituximab treatment both

in ETV group and control group (p<0.05). In patient with HBV reactivation, the degree of anti-HBs decline did not greater than those without HBV reactivation. Conclusion: Rituximab Y 27632 has impact on the anti-HBs titer both in patients with or without entecavir prophylaxis. The kinetics of anti-HBs titers could not predict HBV reactivation in lymphoma patients with RHB. Disclosures: The following people have nothing to disclose: Yi-Hsiang Huang, I-Cheng Lee, Liang-Tsai Hsiao, Han-Chieh Lin, Shou-Dong Lee While selleck chemicals Tenofovir (TDF) has become a popular anti-HBV strategy for naïve patients worldwide, the 4 year effectiveness and safety in field practice is unknown. Methods: 374 naïve patients (55 years, 73% males, HBV-DNA 6.0 log IU/ml, 80% HBeAg-negative, 35% with cirrhosis, 47% with concomitant disease/medications) with chronic hepatitis B with

or without cirrhosis were treated with TDF monotherapy and enrolled in a retrospective/prospective cohort study from 21 European centers. Median follow-up was 39 months (range 0-72). Virological response was undetectable HBV DNA; safety analysis focused on glomerular and tubular renal function. Results. Virological response rates increased over time reaching 97% at year 4, independently of HBeAg status. 22 (30%) patients serocon-verted to anti-HBe with a 4-year cumulative probability of 37%, 16 (17%) patients cleared HBsAg (1 1 HBeAg-positive patients), of whom 6 successfully stopped TDF. Partial virological response rates progressively declined from 14% at month 12 [residual viremia: 44 IU/ml (10-264.000)], to 5% at month18 [65 IU/ml (12-23.

38 Maintenance of a pool of reduced GSH is especially important d

38 Maintenance of a pool of reduced GSH is especially important during periods of oxidative stress. Extracellular GSH and its oxidized form, GSH disulfide, are broken down to their constituent amino acids by GGT and then transported back into cells for resynthesis of GSH. As the only enzyme of the γ-glutamyl cycle located on the outer surface of the plasma membrane, GGT plays a key ICG-001 order role in GSH homeostasis by providing cysteine, the rate-limiting substrate, for intracellular synthesis of GSH.39

It has been suggested that catabolism of GSH by GGT results in prooxidant metabolites.40 As an adaptive response to exposure to oxidants, the expression of GGT increases, although the mechanisms for induction are uncertain.41, 42 At the population level, GGT activity has been positively associated with C-reactive protein, a general marker for increased oxidative stress.43 It is interesting that GGT activity was associated with fibrosis stage and cirrhosis at baseline and predicted fibrosis progression, but a change in fibrosis score was not associated with change in GGT. Nor

was a change in GGT activity correlated with Dabrafenib changes in platelet count or AST/ALT, which are markers of development of cirrhosis. These findings suggest that GGT is a marker of disease activity, and not merely a reflection of disease severity, such as platelet count, which declines as cirrhosis and portal hypertension develop. This finding provides additional, albeit indirect evidence that GGT reflects a state of oxidative

stress in chronic HCV. It is also interesting that ALT was not independently associated with treatment response or with disease progression and that AST was associated with week 20 virological response but not disease progression. Thus, in the setting of HCV associated advanced liver disease, GGT has greater prognostic significance than ALT or AST. Given the prognostic significance of GGT, we examined other patient characteristics with which GGT was associated, a few of which are stressed here. The mechanisms whereby hepatic steatosis and elevated this website GGT are associated are not entirely clear, but several have been proposed.44 For example, fatty liver could cause hepatocellular damage that would simulate the synthesis of GGT. Alternatively, excess fat in the liver could enhance oxidative stress, leading to overconsumption of GSH with a compensatory increase in GGT synthesis. Finally, a higher GGT production could be secondary to a low-grade hepatic inflammation induced by hepatic steatosis. PNPLA3 genotype was strongly related to steatosis and steatosis strongly related to GGT, but there was not an association of PNLP3 with GGT activity, which was also the case in at least one other study.22 Thus, it appears that the mechanism for the relationship of PNPLA3 with steatosis is likely different from that of steatosis with GGT activity.

[68, 69] Risk factors that require careful assessment include pat

[68, 69] Risk factors that require careful assessment include patient age and weight, nutritional status, hypoalbuminemia, hepatopulmonary syndrome, and cardiomyopathy associated with cirrhosis.[69,

70] Pediatric conditions and their associated comorbidities that may heighten anesthetic risk include Alagille syndrome (cardiac disease, vascular and renal abnormalities, and moyamoya), biliary atresia with splenic malformation (complex heart disease, interrupted inferior vena cava), and primary hyperoxaluria (renal and cardiac dysfunction).[69] A specialized LT anesthesia team has been associated with more favorable patient outcomes in adults, although pediatric centers were excluded from this study.[71] The United Network for Organ Sharing (UNOS) has recently modified policy to require liver transplant programs to designate a Director of Liver Transplant Anesthesia who has expertise in the area of perioperative care EGFR inhibitor of liver transplant patients and can serve as an advisor to other members of the team. 20. An anesthesiologist familiar with pediatric indications for LT and associated comorbidities should ensure the LT evaluation includes appropriate disease-specific assessments to minimize intraoperative and postoperative anesthetic risk. (2-B) Children with chronic liver disease are often not fully immunized prior to LT.[72, 73] Development of a vaccine

selleck chemical preventable disease (VPD) either before or after LT will increase morbidity and mortality and heightened the risk of graft injury or loss.[74, 75] Timing of immunization administration in the LT candidate is important, as vaccines are more immunogenic before the development of endstage liver disease and more immunogenic before than after LT. Humoral immunity to rubella, measles, and varicella vaccines is significantly decreased in children with biliary atresia compared to healthy controls.[76] VPD can develop in immunized children with chronic liver disease

when antibody titers are low.[77] There is a paucity of data related to influenza vaccine in patients with see more chronic liver disease.[78] Hepatic decompensation has been reported with influenza,[79] and influenza vaccination in adults with cirrhosis significantly reduced the frequency of hepatic decompensation compared to those who did not receive the vaccine.[80] Guidelines for vaccination of liver transplant candidates and recipients are published periodically by the American Society of Transplantation.[81] Clinical practice guidelines for vaccination of the immunocompromised host were recently published by the Infectious Diseases Society of America.[82] Vaccination of household contacts provides additional protection to the child.[83] Paralytic polio has been described in household contacts of oral polio vaccine recipients.[84] Data suggest that administration of live virus vaccines to household contacts, other than oral polio, poses minimal risk to the child.

However, Gram-negative bacterial families Enterobacteriaceae
<

However, Gram-negative bacterial families Enterobacteriaceae

and Bacteroidaceae and phylum Verrucomicrobia were significantly more abundant in SFBL. Trichrome staining of liver sections revealed characteristic PSC-like lesions in 40% of SFBL mice, consisting of intrahepatic periductal fibrosis, compared to 0% of sham mice. CD11c+CD-11b+PDCA1- myeloid dendritic cells (mDCs) were significantly increased in SFBL livers with PSC-like lesions (SFBL-PDF) compared to SFBL livers without PSC-like lesions (SFBL-NON-PDF). Although the expression of co-stimulatory markers CD80 and CD86 in hepatic mDCs did not show significant difference between SFBL-PDF and SFBL-NON-PDF mice, MHC-I expression was significantly increased and MHC-II expression was significantly decreased in hepatic LEE011 in vivo mDCs in SFBL-PDF mice. Compared to SFBL-NON-PDF and sham mice, SFBL-PDF mice had significantly increased CD8+CD44+ T cells and CCL3 and CCL4 mRNA levels in the liver, and significantly increased CCL3 and CCL4 in serum. CONCLUSIONS: Our results suggest that creation of SFBL induced quantitative and qualitative changes in gut microbiota, contributing to the development of PSC-like lesions in NOD.B6Abd3 mice. The development of PSC-like lesions in NOD.B6Abd3 may be triggered selleck screening library by the activation and expansion

of liver mDCs, which in turn recruit activated CD8+ T cells via T cell chemoattractant chemokines CCL3 and CCL4. Disclosures: Jorge A. Bezerra – Grant/Research selleck chemicals Support: Molecular Genetics Laboratory, CHMC The following people have nothing to disclose: Qingqing Wang, Vijay Saxena, Bin Wang, Lili Miles, Marnie A. Ryan, William M. Ridgway, Jaimie D. Nathan Background Bile salt (BS) toxicity plays an important role in cholestatic

liver injury. Adaptive mechanisms are operational to reduce hepatic toxicity and promote urinary elimination of BS in cholestasis. Following up on the observation that ectopic FGF19 expression in the human cholestatic liver comprises an adaptive strategy to reduce BS synthesis (Hepatology 49:1228), we now explore the human hepatic transcriptome to gain further insight into molecular networks affected by cholestasis. Methods Total RNA was isolated from liver biopsies of patients with pancreatic tail cancer or benign liver tumors without cholestasis (controls,n=9), patients with cholestasis due to periampullary malignancies (cholestatic,n=9), and initially jaundiced patients with periampullary malignancies receiving pre-operative biliary drainage (drained,n=10). mRNA and miRNA expression profiles were determined using Agilent arrays. Results Median total BS and bilirubin level was 194 and 186 μmol/L, resp., in cholestatic patients, with notable elevation of cholestatic injury markers (GGT 1055U/L, AP 540U/L) and transaminases (AST 232U/L, ALT 388U/L). In patients receiving pre-operative biliary drainage total BS, bilirubin and transaminases were within the normal range.

None of 27 patients of Child B and C liver cirrhosis , developed

None of 27 patients of Child B and C liver cirrhosis , developed ATT induced hepatotoxicity after being started on regimen 2. Conclusion: Conclusions -Prevalence of tuberculosis in patients with cirrhosis of liver in our study, was 145.33 per 1000 patients (14.53%) which was 30 times higher than the prevalence of all forms of tuberculosis in general population in India. PZA should be avoided in patients with cirrhosis of liver, even in Child A liver cirrhosis. Combination of RMP, EMB and Ofloxacin is absolutely safe in cirrhosis of liver, even in Child B or C cirrhosis Key Word(s): 1. Tuberculosis; 2. Cirrhosis of liver; 3. ATT; 4. Regimen; Presenting

Author: IOAN SPOREA Additional Authors: SIMONA BOTA, ROXANA SIRLI, ALINA POPESCU, MIRELA DANILA, ANA JURCHIS, OANA GRADINARU-TASCAU Corresponding Author: IOAN SPOREA Affiliations: Department of Gastroenterology and Hepatology, Talazoparib in vivo „Victor Babes” University of Medicine and Pharmacy, Timisoara, Romania Objective: To assess the value of liver stiffness (LS) measurements by means of Acoustic Radiation Force Impulse (ARFI) elastography as a predictive Ixazomib molecular weight factor for the severity of fibrosis. Methods: Our study included 1150 subjects with an median age of 55 years (18-87): 652 patients (56.7%) diagnosed with liver cirrhosis by clinical, ultrasound, endoscopy criteria; 244 subjects (21.2%) without known liver disease, 133 patients (11.6%) with chronic hepatitis C in

whom liver biopsy (LB) was performed, 72 chronic hepatitis B patients (6.3%) with LB and 49 patients (4.2%) with non-cirrhotic ascites. Ten LS valid ARFI measurements were performed in each subject and a median value was calculated, expressed in

meters/second (m/s). Reliable LS measurements were considered the median of 10 valid measurements with a success rate ≥60% and an interquartile range interval <30%. Results: Reliable LS values by means of ARFI measurements learn more were obtained in 1076/1150 (93.5%) subjects. In „normal subjects” the mean LS value assessed by ARFI was 1.22 ± 0.31 m/s (median 1.19 m/s). In patients with LB, the best LS ARFI cut-offs values for predicting different stages of liver fibrosis were: F ≥ 2 – 1.48 m/s (AUROC = 0.671), F ≥ 3 – 1.61 m/s (AUROC = 0.709) and F = 4 – 1.75 m/s (AUROC = 0.824). The mean LS values were significantly higher in cirrhotic patients with significant esophageal varices (al least grade 2) as compared with those without or with grade 1 varices: 2.96 ± 0.71 m/s vs. 2.81 ± 0.71 m/s, p = 0,01; also in cirrhotic with ascites as compared with those without ascites: 3.01 ± 0.70 m/s vs. 2.78 ± 0.68 m/s, p = 0.0001. The mean LS values assessed by ARFI were significantly higher in cirrhotic patients with ascites as compared with patients with non-cirrhotic etiology of ascites: 3.01 ± 0.70 m/s vs. 1.43 ± 0.49 m/s, p < 0.0001. Conclusion: ARFI is a good method for noninvasive liver fibrosis assessment. Key Word(s): 1. ARFI; 2.