Novel Death Defying Domain in met entraps the active site of caspase‐3 and blocks apoptosis in hepatocytes

Jihong Ma, Chunbin Zou, Lida Guo, Danushka S. Seneviratne, Xinping Tan, Yong‐Kook Kwon, Jiyan An, Robert Bowser, Marie C. DeFrances, Reza Zarnegar – 3 October 2013 – Met, the transmembrane tyrosine kinase receptor for hepatocyte growth factor (HGF), is known to function as a potent antiapoptotic mediator in normal and neoplastic cells. Herein we report that the intracellular cytoplasmic tail of Met has evolved to harbor a tandem pair of caspase‐3 cleavage sites, which bait, trap, and disable the active site of caspase‐3, thereby blocking the execution of apoptosis.

Pulmonary complications in chronic liver disease

Victor I. Machicao, Maya Balakrishnan, Michael B. Fallon – 2 October 2013 – The association of chronic liver disease with respiratory symptoms and hypoxia is well recognized. Over the last century, three pulmonary complications specific to chronic liver disease have been characterized: hepatopulmonary syndrome (HPS), portopulmonary hypertension (POPH), and hepatic hydrothorax (HH). The development of portal hypertension is fundamental in the pathogenesis of each of these disorders.

IL‐17 signaling accelerates the progression of nonalcoholic fatty liver disease in mice

Isaac T.W. Harley, Traci E. Stankiewicz, Daniel A. Giles, Samir Softic, Leah M. Flick, Monica Cappelletti, Rachel Sheridan, Stavra A. Xanthakos, Kris A. Steinbrecher, R. Balfour Sartor, Rohit Kohli, Christopher L. Karp, Senad Divanovic – 2 October 2013 – Inflammation plays a central pathogenic role in the pernicious metabolic and end‐organ sequelae of obesity. Among these sequelae, nonalcoholic fatty liver disease (NAFLD) has become the most common chronic liver disease in the developed world.

Pulmonary complications in chronic liver disease

Victor I. Machicao, Maya Balakrishnan, Michael B. Fallon – 2 October 2013 – The association of chronic liver disease with respiratory symptoms and hypoxia is well recognized. Over the last century, three pulmonary complications specific to chronic liver disease have been characterized: hepatopulmonary syndrome (HPS), portopulmonary hypertension (POPH), and hepatic hydrothorax (HH). The development of portal hypertension is fundamental in the pathogenesis of each of these disorders.

Poly (ADP‐ribose) polymerase‐1 is a key mediator of liver inflammation and fibrosis

Partha Mukhopadhyay, Mohanraj Rajesh, Zongxian Cao, Béla Horváth, Ogyi Park, Hua Wang, Katalin Erdelyi, Eileen Holovac, Yuping Wang, Lucas Liaudet, Nabila Hamdaoui, Fouad Lafdil, György Haskó, Csaba Szabo, A. Hamid Boulares, Bin Gao, Pal Pacher – 2 October 2013 – Poly (ADP‐ribose) polymerase 1 (PARP‐1) is a constitutive enzyme, the major isoform of the PARP family, which is involved in the regulation of DNA repair, cell death, metabolism, and inflammatory responses.

Expanded classification of hepatitis C virus into 7 genotypes and 67 subtypes: Updated criteria and genotype assignment web resource

Donald B. Smith, Jens Bukh, Carla Kuiken, A. Scott Muerhoff, Charles M. Rice, Jack T. Stapleton, Peter Simmonds – 1 October 2013 – The 2005 consensus proposal for the classification of hepatitis C virus (HCV) presented an agreed and uniform nomenclature for HCV variants and the criteria for their assignment into genotypes and subtypes. Since its publication, the available dataset of HCV sequences has vastly expanded through advancement in nucleotide sequencing technologies and an increasing focus on the role of HCV genetic variation in disease and treatment outcomes.

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