C‐Myc and its target FoxM1 are critical downstream effectors of constitutive androstane receptor (CAR) mediated direct liver hyperplasia

William E. Blanco‐Bose, Mark J. Murphy, Armin Ehninger, Sandra Offner, Christelle Dubey, Wendong Huang, David D. Moore, Andreas Trumpp – 26 September 2008 – In the adult liver, 1,4‐bis[2‐(3,5‐dichloropyridyloxy)]benzene (TCPOBOP), an agonist of the constitutive androstane receptor (CAR, NR1I3), produces rapid hepatomegaly in the absence of injury. In this study, we identify c‐Myc as a gene induced by CAR and demonstrate that TCPOBOP‐induced proliferation of hepatocytes depends on c‐Myc function.

Utility of serum tumor markers, imaging, and biliary cytology for detecting cholangiocarcinoma in primary sclerosing cholangitis

Phunchai Charatcharoenwitthaya, Felicity B. Enders, Kevin C. Halling, Keith D. Lindor – 26 September 2008 – There is limited information on test performance for detecting cholangiocarcinoma in primary sclerosing cholangitis (PSC), particularly when used sequentially. This study aimed to characterize diagnostic performance of serum carbohydrate antigen 19‐9 (CA 19‐9), ultrasonography, computed tomography, magnetic resonance imaging, cholangiography, and biliary cytologic techniques for detecting cholangiocarcinoma in PSC.

Treatment recommendations for chronic hepatitis B: An evaluation of current guidelines based on a natural history study in the United States

Myron John Tong, Carlos Hsien, Leeyen Hsu, Hai‐En Sun, Lawrence Mitchell Blatt – 26 September 2008 – Current guidelines for treatment of chronic hepatitis B include hepatitis B e antigen (HBeAg) status, levels of hepatitis B virus (HBV) DNA, and serum alanine aminotransferase (ALT) values in the setting of either chronic hepatitis or cirrhosis.

Hepatocyte signaling through CXC chemokine receptor‐2 is detrimental to liver recovery after ischemia/reperfusion in mice

Satoshi Kuboki, Thomas Shin, Nadine Huber, Thorsten Eismann, Elizabeth Galloway, Rebecca Schuster, John Blanchard, Michael J. Edwards, Alex B. Lentsch – 26 September 2008 – CXC chemokines and their receptor, CXC chemokine receptor‐2 (CXCR2), are important components of the hepatic inflammatory response to ischemia/reperfusion (I/R). However, direct effects of CXC chemokines on hepatocytes during this response have not been studied. Wild‐type and CXCR2−/− mice were subjected to 90 minutes of partial hepatic ischemia followed by up to 96 hours of reperfusion.

Induction of incomplete autophagic response by hepatitis C virus via the unfolded protein response

Donna Sir, Wen‐ling Chen, Jinah Choi, Takaji Wakita, T.S. Benedict Yen, Jing‐hsiung James Ou – 26 September 2008 – Autophagy is important for cellular homeostasis and can serve as innate immunity to remove intracellular pathogens. Here, we demonstrate by a battery of morphological and biochemical assays that hepatitis C virus (HCV) induces the accumulation of autophagosomes in cells without enhancing autophagic protein degradation.

A randomized trial of combination hepatitis B therapy in HIV/HBV coinfected antiretroviral naïve individuals in Thailand

Gail V. Matthews, Anchalee Avihingsanon, Sharon R. Lewin, Janaki Amin, Rungsun Rerknimitr, Panusit Petcharapirat, Pip Marks, Joe Sasadeusz, David A. Cooper, Scott Bowden, Stephen Locarnini, Kiat Ruxrungtham, Gregory J. Dore – 26 September 2008 – Coinfection with human immunodeficiency virus (HIV) and hepatitis B virus (HBV) is associated with considerable liver disease morbidity and mortality. Emerging HIV epidemics in areas of high HBV endemicity such as Asia are expanding the population with HIV/HBV coinfection.

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