Loss of histone deacetylases 1 and 2 in hepatocytes impairs murine liver regeneration through Ki67 depletion

Jie Xia, Yongjie Zhou, Hongjie Ji, Yujia Wang, Qiong Wu, Ji Bao, Feng Ye, Yujun Shi, Hong Bu – 6 June 2013 – Histone deacetylases 1 and 2 (HDAC1 and HDAC2) are ubiquitously expressed in tissues, including the liver, and play critical roles in numerous physiopathological processes. Little is known regarding the role of HDAC1 and HDAC2 in liver regeneration.

Performance of chronic kidney disease epidemiology collaboration creatinine‐cystatin C equation for estimating kidney function in cirrhosis

Ayse L. Mindikoglu, Thomas C. Dowling, Matthew R. Weir, Stephen L. Seliger, Robert H. Christenson, Laurence S. Magder – 6 June 2013 – Conventional creatinine‐based glomerular filtration rate (GFR) equations are insufficiently accurate for estimating GFR in cirrhosis. The Chronic Kidney Disease Epidemiology Collaboration (CKD‐EPI) recently proposed an equation to estimate GFR in subjects without cirrhosis using both serum creatinine and cystatin C levels.

Sleep‐wake abnormalities in patients with cirrhosis

Sara Montagnese, Cristiano De Pittà, Michele De Rui, Michela Corrias, Matteo Turco, Carlo Merkel, Piero Amodio, Rodolfo Costa, Debra J. Skene, Angelo Gatta – 6 June 2013 – A considerable proportion of patients with cirrhosis exhibit insomnia, delayed sleep habits, and excessive daytime sleepiness. These have been variously attributed to hepatic encephalopathy and impaired hepatic melatonin metabolism, but the understanding of their pathophysiology remains limited and their treatment problematic. Sleep is regulated by the interaction of a homeostatic and a circadian process.

CD73 (ecto‐5′‐nucleotidase) hepatocyte levels differ across mouse strains and contribute to mallory‐denk body formation

Natasha T. Snider, Nicholas W. Griggs, Amika Singla, David S. Moons, Sujith V.W. Weerasinghe, Anna S. Lok, Chunhai Ruan, Charles F. Burant, Hari S. Conjeevaram, M. Bishr Omary – 31 May 2013 – Formation of hepatocyte Mallory‐Denk bodies (MDBs), which are aggregates of keratins 8 and 18 (K8/K18), ubiquitin, and the ubiquitin‐binding protein, p62, has a genetic predisposition component in humans and mice. We tested the hypothesis that metabolomic profiling of MDB‐susceptible C57BL and MDB‐resistant C3H mouse strains can illuminate MDB‐associated pathways.

Neutralization resistance of hepatitis C virus can be overcome by recombinant human monoclonal antibodies

Jannie Pedersen, Thomas H.R. Carlsen, Jannick Prentoe, Santseharay Ramirez, Tanja B. Jensen, Xavier Forns, Harvey Alter, Steven K.H. Foung, Mansun Law, Judith Gottwein, Nina Weis, Jens Bukh – 31 May 2013 – Immunotherapy and vaccine development for hepatitis C virus (HCV) will depend on broadly reactive neutralizing antibodies (NAbs). However, studies in infectious strain JFH1‐based culture systems expressing patient‐derived Core‐NS2 proteins have suggested neutralization resistance for specific HCV strains, in particular, of genotype 2.

Identification of driver genes in hepatocellular carcinoma by exome sequencing

Sean P. Cleary, William R. Jeck, Xiaobei Zhao, Kui Chen, Sara R. Selitsky, Gleb L. Savich, Ting‐Xu Tan, Michael C. Wu, Gad Getz, Michael S. Lawrence, Joel S. Parker, Jinyu Li, Scott Powers, Hyeja Kim, Sandra Fischer, Maha Guindi, Anand Ghanekar, Derek Y. Chiang – 31 May 2013 – Genetic alterations in specific driver genes lead to disruption of cellular pathways and are critical events in the instigation and progression of hepatocellular carcinoma (HCC). As a prerequisite for individualized cancer treatment, we sought to characterize the landscape of recurrent somatic mutations in HCC.

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