Hepatic reticuloendothelial system cell iron deposition is associated with increased apoptosis in nonalcoholic fatty liver disease

Bryan D. Maliken, James E. Nelson, Heather M. Klintworth, Mary Beauchamp, Matthew M. Yeh, Kris V. Kowdley – 16 January 2013 – The aim of this study was to examine the relationship between the presence of hepatic iron deposition, apoptosis, histologic features, and serum markers of oxidative stress (OS) and cell death in nonalcoholic fatty liver disease (NAFLD). Clinical, biochemical, metabolic, and independent histopathologic assessment was conducted in 83 unselected patients with biopsy‐proven NAFLD from a single center.

Soluble receptor for advanced glycation end products and risk of liver cancer

Kristin A. Moy, Li Jiao, Neal D. Freedman, Stephanie J. Weinstein, Rashmi Sinha, Jarmo Virtamo, Demetrius Albanes, Rachael Z. Stolzenberg‐Solomon – 16 January 2013 – Binding of advanced glycation end products (AGEs) to their receptor (RAGE) increases oxidative stress and inflammation and may be involved in liver injury and subsequent carcinogenesis. Soluble RAGE (sRAGE) may neutralize the effects mediated by the AGE/RAGE complex. Epidemiologic studies examining sRAGE or AGEs in association with liver cancer are lacking.

Plasma interferon‐gamma‐inducible protein‐10 (IP‐10) levels during acute hepatitis C virus infection

Jason Grebely, Jordan J. Feld, Tanya Applegate, Gail V. Matthews, Margaret Hellard, Alana Sherker, Kathy Petoumenos, Geng Zang, Ineke Shaw, Barbara Yeung, Jacob George, Suzy Teutsch, John M. Kaldor, Vera Cherepanov, Julie Bruneau, Naglaa H. Shoukry, Andrew R. Lloyd, Gregory J. Dore – 16 January 2013 – Systemic levels of interferon‐gamma‐inducible protein‐10 (IP‐10) are predictive of treatment‐induced clearance in chronic hepatitis C virus (HCV).

Gene expression profiling in the cerebral cortex of patients with cirrhosis with and without hepatic encephalopathy

Boris Görg, Hans‐Jürgen Bidmon, Dieter Häussinger – 16 January 2013 – Hepatic encephalopathy (HE) is a frequent complication of liver cirrhosis and is seen as the clinical manifestation of a low‐grade cerebral edema associated with oxidative‐nitrosative stress. However, comprehensive data on HE‐associated molecular derangements in the human brain are lacking. In the present study, we used a whole human genome microarray approach for gene expression profiling in post mortem brain samples from patients with cirrhosis with or without HE and controls without cirrhosis.

Efficient drug screening and gene correction for treating liver disease using patient‐specific stem cells

Su Mi Choi, Yonghak Kim, Joong Sup Shim, Joon Tae Park, Rui‐Hong Wang, Steven D. Leach, Jun O. Liu, Chuxia Deng, Zhaohui Ye, Yoon‐Young Jang – 16 January 2013 – Patient‐specific induced pluripotent stem cells (iPSCs) represent a potential source for developing novel drug and cell therapies. Although increasing numbers of disease‐specific iPSCs have been generated, there has been limited progress in iPSC‐based drug screening/discovery for liver diseases, and the low gene‐targeting efficiency in human iPSCs warrants further improvement.

BTB/POZ domain‐containing protein 7: Epithelial‐mesenchymal transition promoter and prognostic biomarker of hepatocellular carcinoma

Yi‐Ming Tao, Jin‐Lin Huang, Shan Zeng, Sai Zhang, Xue‐Gong Fan, Zhi‐Ming Wang, Hui‐Xiang Yang, Xiao‐Hua Yuan, Pu Wang, Fan Wu, Jia Luo, De‐Yu Zeng, Hong Shen – 16 January 2013 – Epithelial‐mesenchymal transition (EMT) is a critical step in the metastasis of hepatocellular carcinoma (HCC). BTB/POZ domain‐containing protein 7 (BTBD7) regulates EMT‐associated proteins implicated in HCC progression. However, the role(s) of BTBD7 in HCC have not been identified.

MAT2B‐GIT1 interplay activates MEK1/ERK 1 and 2 to induce growth in human liver and colon cancer

Hui Peng, Lily Dara, Tony W.H. Li, Yuhua Zheng, Heping Yang, Maria Lauda Tomasi, Ivan Tomasi, Pasquale Giordano, Jose M. Mato, Shelly C. Lu – 16 January 2013 – Methionine adenosyltransferase 2B (MAT2B) encodes for two variant proteins (V1 and V2) that promote cell growth. Using in‐solution proteomics, GIT1 (G Protein Coupled Receptor Kinase Interacting ArfGAP 1) was identified as a potential interacting partner of MAT2B. Here, we examined the functional significance of this interplay. Coimmunoprecipitation experiments examined protein interactions.

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