Occult hepatitis B infection and HBV replicative activity in patients with cryptogenic cause of hepatocellular carcinoma

Danny Ka Ho Wong, Fung Yu Huang, Ching Lung Lai, Ronnie Tung Ping Poon, Wai Kay Seto, James Fung, Ivan Fan Ngai Hung, Man Fung Yuen – 11 July 2011 – We aimed to investigate the incidence of occult hepatitis B infection (OBI) in patients with “cryptogenic” hepatocellular carcinoma (HCC) and to study the HBV replicative activity in these patients. Tumorous and adjacent nontumorous liver tissues were obtained from 33 cryptogenic HCC patients and 28 HCC patients with identifiable causes (13 with chronic hepatitis B [CHB], six with chronic hepatitis C, and nine alcohol‐related).

Natural killer inhibitory receptor expression associated with treatment failure and interleukin‐28B genotype in patients with chronic hepatitis C

Lucy Golden‐Mason, Kiran M. Bambha, Linling Cheng, Charles D. Howell, Milton W. Taylor, Paul J. Clark, Nezam Afdhal, Hugo R. Rosen, on behalf of the Virahep‐C Study Group – 11 July 2011 – Natural killer (NK) cells constitute a first line of defense against viral infections; their function is governed by the integration of signals from multiple activating and inhibitory surface receptors. We hypothesized that because NKs become rapidly activated by cytokines, response to anti‐hepatitis C virus (HCV) therapy would be predicted by the phenotype and function of NKs.

Impact of the duration of posttransplant renal replacement therapy on bacterial infections in liver transplant recipients

Hsin‐Yun Sun, Thomas V. Cacciarelli, Marilyn M. Wagener, Nina Singh – 8 July 2011 – Whether the duration of renal replacement therapy (RRT) after liver transplantation influences the rate and types of bacterial infections is not known. In this study, 47 of 299 consecutive liver transplant recipients (16%) required posttransplant RRT. The incidence of bacterial infections was higher in the RRT group versus the non‐RRT group (8.84 versus 1.38 per 1000 patient days, P < 0.001).

Substance use by liver transplant candidates: An anonymous urinalysis study

Ian Webzell, David Ball, James Bell, Roy A. Sherwood, Andrew Marsh, John G. O'Grady, Nigel D. Heaton – 8 July 2011 – Toxicological urinalysis is a highly sensitive and specific test that detects recent substance use. It has been established for substance misuse treatment but has not been routinely used at liver transplantation (LT) centers. Patients with a history of substance misuse are required to be abstinent from alcohol and illicit drugs before they are listed for LT.

Impact of reversible cardiac arrest in the brain‐dead organ donor on the outcome of adult liver transplantation

Eric Levesque, Emir Hoti, Meriem Khalfallah, Chady Salloum, Luana Ricca, Eric Vibert, Daniel Azoulay – 8 July 2011 – Several donor and graft characteristics are associated with higher failure rates for deceased donor liver transplantation (LT). The influence of reversible cardiac arrest in the donor on these failure rates is unclear because of scarce and inconsistent data. The aim of this study was to determine whether reversible cardiac arrest in the donor could affect the early postoperative outcome of LT.

Portal vein thrombosis and outcomes for pediatric liver transplant candidates and recipients in the United States

Seth A. Waits, Brandon M. Wojcik, Shijie Cai, Amit K. Mathur, Michael J. Englesbe – 8 July 2011 – The effect of occlusive portal vein thrombosis (PVT) on the mortality of pediatric liver transplant candidates and recipients is poorly defined. Using standard multivariate techniques, we studied the relationship between PVT and waiting‐list and posttransplant survival rates with data from the Scientific Registry of Transplant Recipients (September 2001 to December 2007). In all, 5087 liver transplant candidates and 3630 liver transplant recipients were evaluated during the period.

Genes inducing iPS phenotype play a role in hepatocyte survival and proliferation in vitro and liver regeneration in vivo

Vishakha S. Bhave, Shirish Paranjpe, William C. Bowen, Shashikiran Donthamsetty, Aaron W. Bell, Jaspal S. Khillan, George K. Michalopoulos – 7 July 2011 – Reprogramming factors have been used to induce pluripotent stem cells as an alternative to somatic cell nuclear transfer technology in studies targeting disease models and regenerative medicine. The neuronal repressor RE‐1 silencing transcription factor (REST) maintains self‐renewal and pluripotency in mouse embryonic stem cells by maintaining the expression of Oct3/4, Nanog, and cMyc.

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