Comprehensive analysis for viral elements and interleukin‐28B polymorphisms in response to pegylated interferon plus ribavirin therapy in hepatitis C virus 1B infection

Shinya Maekawa, Minoru Sakamoto, Mika Miura, Makoto Kadokura, Ryota Sueki, Kazuki Komase, Hiroko Shindo, Nobutoshi Komatsu, Kuniaki Shindo, Asuka Kanayama, Takako Ohmori, Fumitake Amemiya, Shinichi Takano, Tatsuya Yamaguchi, Yasuhiro Nakayama, Takatoshi Kitamura, Taisuke Inoue, Shunichi Okada, Nobuyuki Enomoto – 10 May 2012 – To comprehensively characterize the contribution of virological factors as well as interleukin‐28B (IL28B) single‐nucleotide polymorphisms (SNPs) in determining treatment responses in pegylated‐interferon plus ribavirin (Peg‐IFN/RBV) therapy for chronic hepatitis C vir

B cell homeostasis in chronic hepatitis C virus–related mixed cryoglobulinemia is maintained through naïve B cell apoptosis

Lauren E. Holz, Joo Chun Yoon, Sukanya Raghuraman, Susan Moir, Michael C. Sneller, Barbara Rehermann – 4 May 2012 – Mixed cryoglobulinemia (MC) is the most common extrahepatic manifestation of chronic hepatitis C virus (HCV) infection. Although the formation of inflammation‐triggering immune complexes is driven by clonal expansions of autoreactive B cells, we found total B cell numbers paradoxically reduced in HCV‐infected patients with MC.

Hematopoietic chimerism in liver transplantation patients and hematopoietic stem/progenitor cells in adult human liver

Xiao Qi Wang, Chung Mau Lo, Lin Chen, Cindy K.Y. Cheung, Zhen Fan Yang, Yong Xiong Chen, Michael N. Ng, Wan Ching Yu, Xiaoyan Ming, Wu Zhang, David W.Y. Ho, See Ching Chan, Sheung Tat Fan – 27 April 2012 – Liver transplantation (LT) is a cure for many liver diseases. Blood chimerism of donor origin can develop after LT, which raises the possibility of the existence of hematopoietic stem/progenitor cells (HSPCs) in the liver. We characterized the blood chimerism in a large cohort of 249 LT patients and analyzed putative HSPCs in adult human livers.

CD11b+ Gr1+ bone marrow cells ameliorate liver fibrosis by producing interleukin‐10 in mice

Yang‐Gun Suh, Ja Kyung Kim, Jin‐Seok Byun, Hyon‐Seung Yi, Young‐Sun Lee, Hyuk Soo Eun, So Yeon Kim, Kwang‐Hyub Han, Kwan Sik Lee, Gregg Duester, Scott L. Friedman, Won‐Il Jeong – 27 April 2012 – Clinical trials and animal models suggest that infusion of bone marrow cells (BMCs) is effective therapy for liver fibrosis, but the underlying mechanisms are obscure, especially those associated with early effects of BMCs. Here, we analyzed the early impact of BMC infusion and identified the subsets of BMCs showing antifibrotic effects in mice with carbon tetrachloride–induced liver fibrosis.

Pericentral activity of alpha‐fetoprotein enhancer 3 and glutamine synthetase upstream enhancer in the adult liver are regulated by β‐catenin in mice

Erica L. Clinkenbeard, James E. Butler, Brett T. Spear – 27 April 2012 – We previously showed that mouse alpha‐fetoprotein (AFP) enhancer 3 activity is highly restricted to pericentral hepatocytes in the adult liver. Here, using transgenic mice, we show that the upstream enhancer of the rat glutamine synthetase gene is also active, specifically in pericentral regions. Activity of both enhancers is lost in the absence of β‐catenin, a key regulator of zonal gene expression in the adult liver.

Randomized, placebo‐controlled trial of tenofovir disoproxil fumarate in adolescents with chronic hepatitis B

Karen F. Murray, Leszek Szenborn, Jacek Wysocki, Stephen Rossi, Amoreena C. Corsa, Phillip Dinh, John McHutchison, Phillip S. Pang, Luminita M. Luminos, Malgorzata Pawlowska, Jacek Mizerski – 27 April 2012 – Tenofovir disoproxil fumarate (DF) is highly effective for the suppression of hepatitis B virus (HBV) in chronically infected adults. This study evaluated the safety and efficacy of tenofovir DF in adolescents with chronic hepatitis B (CHB).

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