APASL HCV guidelines of virus-eradicated patients by DAA on how to monitor HCC occurrence and HBV reactivation.

In the direct-acting antiviral (DAA) era for hepatitis C virus (HCV) infection, sustained virological response (SVR) is very high, but close attention must be paid to the possible occurrence of hepatocellular carcinoma (HCC) and reactivation of hepatitis B virus (HBV) in patients with co-infection who achieved SVR in short term. HCC occurrence was more often observed in patients with previous HCC history. We found occurrence of HCC in 178 (29.6%) of 602 patients with previous HCC history (15.4 months mean follow-up post-DAA initiation) but, in contrast, in only 604 (1.3%) of 45,870 patients without previous HCC history (18.2 months mean follow-up). Thus, in these guidelines, we recommend the following: in patients with previous HCC history, surveillance at 4-month intervals for HCC by ultrasonography (US) and tumor markers should be performed. In patients without previous HCC history, surveillance at 6- to 12-month intervals for HCC including US is recommended until the long-term DAA treatment effects, especially for the resolution of liver fibrosis, are confirmed. This guideline also includes recommendations on how to follow-up patients who have been infected with both HCV and HBV. When HCV was eradicated in these HBsAg-positive patients or patients with previous HBV infection (anti-HBc and/or anti-HBs-positive), it was shown that HBV reactivation or HBV DNA reappearance was observed in 67 (41.4%) of 162 or 12 (0.9%) of 1317, respectively. For these co-infected patients, careful attention should be paid to HBV reactivation for 24 weeks post-treatment.

APASL clinical practice recommendation: how to treat HCV-infected patients with renal impairment?

Chronic hepatitis C virus (HCV) infection is common among patients with chronic kidney disease (CKD) and those on hemodialysis due to nosocomial infections and past blood transfusions. While a majority of HCV-infected patients with end-stage renal disease are asymptomatic, some may ultimately experience decompensated liver diseases and hepatocellular carcinoma. Administration of a combination of elbasvir/grazoprevir for 12 weeks leads to high sustained virologic response (SVR) rates in patients with HCV genotypes (GTs) 1a, 1b or 4 and stage 4 or 5 CKD. Furthermore, a combination of glecaprevir/pibrentasvir for 8-16 weeks also results in high SVR rates in patients with all HCV GTs and stage 4 or 5 CKD. However, these regimens are contraindicated in the presence of advanced decompensated cirrhosis. Although sofosbuvir and/or ribavirin are not generally recommended for HCV-infected patients with severe renal impairment, sofosbuvir-based regimens may be appropriate for those with mild renal impairment. To eliminate HCV worldwide, HCV-infected patients with renal impairment should be treated with interferon-free therapies.

Helicobacter pylori outer membrane protein Q genotypes and their susceptibility to anti-adhesive phytotherapeutic agents / 中西医结合学报

<p><b>OBJECTIVE</b>Helicobacter pylori is a Gram-negative organism. Its outer membrane protein Q (HopQ) mediates host-pathogen interactions; HopQ genotypes 1 and 2 are found associating with gastroduodenal pathologies. The authors measured the anti-adhesion effects of the extracts of Abelmoschus esculentus, Zingiber officinale, Trachyspermum ammi, Glycyrrhiza glabra, Curcuma longa and Capsicum annum against HopQ genotypes and H. pylori cytotoxin-associated gene A (CagA).</p><p><b>METHODS</b>DNA was extracted by polymerase chain reaction of the HopQ genotypes (i.e., type 1, type 2 and CagA) from 115 H. pylori strains. The effect of the extracts from selected dietary ingredients was determined using a gastric adenocarcinoma cell line and a quantitative DNA fragmentation assay. The anti-adhesive effect of these extracts on H. pylori was tested using an anti-adhesion analysis.</p><p><b>RESULTS</b>C. annum, C. longa and A. esculentus showed prominent anti-adhesion effects with resultant values of 17.3% ± 2.9%, 14.6% ± 3.7%, 13.8% ± 3.6%, respectively, against HopQ type 1 and 13.1% ± 1.7%, 12.1% ± 2%, 11.1% ± 1.6%, respectively, against HopQ type 2. C. longa (93%), C. annum (89%) and A. esculentus (75%) had better anti-adhesive activity against H. pylori with HopQ type 1 compared to HopQ type 2 with respective values of 70%, 64% and 51%. Extracts of C. annum (14.7% ± 4.1%), A. esculentus (12.3% ± 4.1%) and Z. officinale (8.4% ± 2.8%) had an anti-adhesion effect against CagA-positive H. pylori strains compared to CagA-negative strains.</p><p><b>CONCLUSION</b>The anti-adhesion properties of the tested phytotherapeutic dietary ingredients were varied with HopQ genotypes. HopQ type 1 was found to be more sensitive to extracts of C. annum, C. longa and A. esculentus compared to the HopQ type 2 genotype.</p>

APASL consensus statements and recommendations for hepatitis C prevention, epidemiology, and laboratory testing.

The Asian Pacific Association for the Study of the Liver (APASL) convened an international working party on "APASL consensus statements and recommendations for management of hepatitis C" in March 2015 to revise the "APASL consensus statements and management algorithms for hepatitis C virus infection" (Hepatol Int 6:409-435, 2012). The working party consisted of expert hepatologists from the Asian-Pacific region gathered at the Istanbul Congress Center, Istanbul, Turkey on 13 March 2015. New data were presented, discussed, and debated during the course of drafting a revision. Participants of the consensus meeting assessed the quality of the cited studies. The finalized recommendations for hepatitis C prevention, epidemiology, and laboratory testing are presented in this review.

APASL consensus statements and recommendation on treatment of hepatitis C.

The Asian-Pacific Association for the Study of the Liver (APASL) convened an international working party on the "APASL consensus statements and recommendation on management of hepatitis C" in March, 2015, in order to revise "APASL consensus statements and management algorithms for hepatitis C virus infection (Hepatol Int 6:409-435, 2012)". The working party consisted of expert hepatologists from the Asian-Pacific region gathered at Istanbul Congress Center, Istanbul, Turkey on 13 March 2015. New data were presented, discussed and debated to draft a revision. Participants of the consensus meeting assessed the quality of cited studies. Finalized recommendations on treatment of hepatitis C are presented in this review.

Yield of esophagogastroduodenoscopy and colonoscopy in cancer of unknown primary.

OBJECTIVES: Carcinoma of unknown primary origin (CUP) is heterogeneous group of cancers. Role of gastrointestinal (GI) endoscopy in this entity is under investigated. Aim of this study was to evaluate yield of Colonoscopy and Esophagogastroduodenoscopy (EGD) in localizing primary tumor in patients with CUP. METHODOLOGY: Patients with histopathologically proven CUP who underwent colonoscopy / EGD to find the primary tumor from December 2009 to December 2011 were included in the study. Abdominal symptoms and cytokeratin (CK) 7 and 20 markers were correlated with presence of primary in GI tract. RESULTS: After giving informed consent 86 patients were included in final analysis. All patients underwent colonoscopy while 60(70%) got EGD along with colonoscopy. Mean age was 55.10 +/-11.94 years with 52(60%) male. Abdominal symptoms were present in 50%. CK7+/CK20- in 34(40%); CK7-/CK20+ in 2(2%) while CK7+/20+ in 7(8%) of metastatic tumor samples. Liver was metastatic site in 47(55%), Lymph node 12(14%) and Ascites in 8(9%). Endoscopy detected primary in 6 (7%) patients with 3 each in stomach and colon. No association of abdominal symptoms and cytokeratin markers was found with presence of GI primary site. CONCLUSION: Yield of localizing primary lesion in the GI tract by pan-endoscopy was limited. Abdominal symptoms and cytokeratin markers do not predict presence of gastrointestinal malignancies.

MELD score: utility and comparison with King's College criteria in non-acetaminophen acute liver failure.

OBJECTIVE: To compare Model for End-stage Liver Disease Score (MELD Score, MS) and King's College Hospital (KCH) criteria for finding correlation of mortality in non-acetaminophen induced acute liver failure (NAI-ALF). STUDY DESIGN: An analytical cross-sectional study. PLACE AND DURATION OF STUDY: The Aga Khan University Hospital, Karachi, from 2005 to 2007. METHODOLOGY: The study included patients with NAI-ALF. KCH criteria were labelled as good and bad prognosis groups. MELD score were calculated by using the MELD calculator. ROC was plotted and sensitivity analysis was done. ETA was used to see correlation between MELD and KCH. RESULTS: Ninety-one patients with mean age of 32.5 + 16.3 years were studied; 49 were males (54%). Out of these, 57 patients died (63%); two leading causes of non-acetaminophen induced acute liver failure (NAI-ALF) were hepatitis hepatitis B virus (HBV) (n = 30, 33%) followed by hepatitis E virus in (n = 23, 25.3%). According to King's College Hospital (KCH) criteria, 50 patients (88%) who died had bad prognosis and 24 patients (70.6%) who survived had good prognosis. The ROC determined MELD score of 32 was the best predictor of mortality with sensitivity and specificity of 79% and 71%, respectively and positive predictive value (PPV) and negative predictive values (NPV) of 82% and 67% respectively. There was significant association between mortality and bad prognosis according to KCH criteria (p < 0.001). Overall mean MELD score (MMS) was 35.35 + 8.64. MMS on admission was 38 + 7.32 in patients who died and 30.7 + 8.77 in those who survived (p = < 0.001). MMS correlated equally with KCH criteria (ETA = 0.52). CONCLUSION: The admission MELD score has an excellent utility and correlates equally with KCH criteria for mortality in NAI- ALF.

Factors predicting the recurrence of spontaneous bacterial peritonitis in patients with cirrhosis.

OBJECTIVE: To evaluate the frequency of recurrence of spontaneous bacterial peritonitis (SBP) in patients with end stage liver disease and the factors responsible for it. STUDY DESIGN: Descriptive study. PLACE AND DURATION OF STUDY: The Aga Khan University Hospital, Karachi, from November 2008 till November 2009. METHODOLOGY: Patients with cirrhosis who were admitted at AKUH with diagnosis of SBP during the study period were included. Any episode of SBP after resolution of the first index case of SBP within one year was considered as recurrence. RESULTS: Out of 238 cirrhotic patients, 157 (66%) had single, while 81 (34%) had recurrent episodes of SBP. History of using proton pump inhibitors (PPI) and diuretics was found in 113 (47.5%) and 139 (58.4%) patients respectively. Only 58 24.4%) patients were on prophylactic antibiotic therapy. Univariate analysis revealed that the female gender (52%), and presence of porto-systemic encephalopathy (PSE, 31%) were statistically significant (p=0.03) among those who had recurrent SBP. On multivariate analysis bilirubin level of > 1.0 mg (OR=7.03; 95%CI=1.55-32), protective factor of hepatitis B (OR 0.31; 95%CI=0.13-0.70) and presence of urinary tract infection (UTI) (OR=2.24; 95%CI=0.99-5.09) were significant in patients with recurrent SBP. CONCLUSION: Recurrent SBP was noticed in 34% patients. Serum bilirubin level of > 1.0 mg, protective factor of HBV and presence of UTI were significant factors present in patients with recurrent SBP.

Associations between the Plasticity Region Genes of Helicobacter pylori and Gastroduodenal Diseases in a High-Prevalence Area

BACKGROUND/AIMS: Genes associated with the Helicobacter pylori (H. pylori) plasticity region may play a role in the pathogenesis of H. pylori. We compared the genes jhp0940, jhp0947, and jhp0986 in H. pylori isolates from patients with different gastroduodenal diseases and in different age groups. METHODS: The H. pylori hyperplasticity region genes jhp0940, jhp0947, and jhp0986 were studied by PCR. We also evaluated whether these genes were related to the cytotoxin-associated gene (cagA) and histology findings. RESULTS: Of the patient cohort, 71 (62%) were positive for jhp0940, 67 (59%) for jhp0947, 12 (10%) for jhp0986, and 69 (60%) for cagA. jhp0940 (n=18, 67%) and jhp0947 (n=23, 85%) were found more frequently in duodenal ulcer (DU) patients than in gastritis patients (n=14, 39%; p=0.029 and p<0.001, respectively). Gastric ulcer (GU) was more frequently associated with jhp0940 (17 patients, 77%; p=0.003) than with gastritis (14 patients, 39%). Gastric carcinoma (GC) was more strongly associated with both jhp0940 (22 patients, 76%; p=0.003) and jhp0947 (22 patients, 76%; p=0.003) than was gastritis (14 patients, 39%). jhp0947 was more frequently associated with chronic active inflammation (58 patients, 87%; p=0.009) than with chronic inflammation (9 patients, 13%). Multivariate analysis demonstrated that jhp0947 was associated with DU (odds ratio, 6.1; 95% confidence interval, 1.87-20). CONCLUSIONS: The genes jhp0947 and jhp0940 were identified in H. pylori isolates from patients with GC and DU, while jhp0940 was also isolated from patients with GU. jhp0947 was independently associated with DU.