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https://www.readbyqxmd.com/read/28320106/ctrp3-attenuates-hepatic-stellate-cell-activation-through-transforming-growth-factor-%C3%AE-smad-signaling-pathway
#1
Chuantao Cheng, Shuo Yu, Ran Kong, Qinggong Yuan, Yuefeng Ma, Wenbin Yang, Gang Cao, Liyi Xie
Activation of hepatic stellate cells (HSCs) plays a pivotal role in the development of liver fibrosis. C1q/tumor necrosis factor-related protein 3 (CTRP3), a member of CTRPs, was involved in fibrosis. However, little is known about the role of CTRP3 in liver fibrosis. This study aimed to determine its role in liver fibrosis and explore the possible mechanism. Our results demonstrated that CTRP3 was lowly expressed in liver fibrosis tissues and activated HSCs. Overexpression of CTRP3 inhibited the proliferation and migration of HSCs, as well as suppressed the expression of extracellular matrix (ECM) in transforming growth factor-β1 (TGF-β1)-stimulated HSC-T6 cells...
March 18, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28320105/anti-fibrotic-potential-of-human-umbilical-cord-mononuclear-cells-and-mouse-bone-marrow-cells-in-ccl4-induced-liver-fibrosis-in-mice
#2
Nageh Ahmed Elmahdy, Samia Salem Sokar, Mohamed Labib Salem, Naglaa Ibrahim Sarhan, Sherin Hamed Abou-Elela
Liver fibrosis is the consequence of hepatocyte injury that leads to the activation of hepatic stellate cells (HSC). The treatment of choice is Liver transplantation; however, it has many problems such as surgery-related complications, immunological rejection and high costs associated with the procedure. Stem cell-based therapy would be a potential alternative, so the aim of this study is to investigate the therapeutic potential of human umbilical cord mononuclear cells (MNC) and mouse bone marrow cells (BMC) against carbon tetrachloride (CCl4) induced liver fibrosis in mice and compare it with that of silymarin...
March 18, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28320086/antifibrotic-effect-of-diethylcarbamazine-combined-with-hesperidin-against-ethanol-induced-liver-fibrosis-in-rats
#3
Alaa El-Din El-Sayed El-Sisi, Samia Salim Sokar, Abdelhadi Mohamed Shebl, Dina Zakaria Mohamed
Chronic alcohol consumption leads to extracellular matrix hyperplasia and liver fibrosis with a great role of hepatic stellate cell (HSC) activation in this process. The present study was designed to investigate the possible protective effects of diethylcarbamazine (DEC) (50mg/kg, acting as an anti-inflammatory drug, interferes with the arachidonic acid metabolism) when administrated in combination with hesperidin (HDN) (200mg/kg, a flavanone glycoside with potent antioxidant and anti-inflammatory activities) against alcoholic liver fibrosis in wistar rats compared to silymarin (Sil) (100mg/kg)...
March 14, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28319602/low-hepatic-tissue-copper-in-pediatric-non-alcoholic-fatty-liver-disease
#4
Michael Mendoza, Shelley Caltharp, Ming Song, Lindsay Collin, Juna V Konomi, Craig J McClain, Miriam B Vos
OBJECTIVE: Animal models and studies in adults have demonstrated that copper restriction increases severity of liver injury in non-alcoholic fatty liver disease (NAFLD). This has not been studied in children. We aimed to determine if lower tissue copper is associated with increased NAFLD severity in children. METHODS: This was a retrospective study of pediatric patients who had a liver biopsy including a hepatic copper quantitation. The primary outcome compared hepatic copper concentration in NAFLD versus non-NAFLD...
March 17, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28318912/less-liver-fibrosis-in-metabolically-healthy-compared-with-metabolically-unhealthy-obese-patients-with-non-alcoholic-fatty-liver-disease
#5
Y Gutiérrez-Grobe, E Juárez-Hernández, B A Sánchez-Jiménez, M H Uribe-Ramos, M H Ramos-Ostos, M Uribe, N C Chávez-Tapia
AIM: This cross-sectional study evaluated liver fibrosis in patients with non-alcoholic fatty liver disease (NAFLD), and compared the characteristics of metabolically healthy obese (MHO) with metabolically unhealthy obese (MUHO) patients. METHODS: The study was nested within a randomized clinical trial (RCT) and included obese patients with NAFLD, as determined by liver ultrasonography. Fibrosis was assessed by transient elastography, and AST-to-platelet ratio index (APRI) and NAFLD score...
March 16, 2017: Diabetes & Metabolism
https://www.readbyqxmd.com/read/28318046/hepatitis-c-virus-induced-ccl5-secretion-from-macrophages-activates-hepatic-stellate-cells
#6
Reina Sasaki, Pradip B Devhare, Robert Steele, Ranjit Ray, Ratna B Ray
Hepatitis C virus (HCV) mediated chronic liver disease is a serious health problem around the world, and often causes fibrosis/cirrhosis, and hepatocellular carcinoma (HCC). The mechanism of liver disease progression during HCV infection is still unclear, although inflammation is believed to be an important player in disease pathogenesis. We previously reported that macrophages including Kupffer cells exposed to HCV induce proinflammatory cytokines. These secreted cytokines may activate hepatic stellate cells (HSCs) towards fibrosis...
March 20, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28317925/liver-macrophages-in-tissue-homeostasis-and-disease
#7
REVIEW
Oliver Krenkel, Frank Tacke
Macrophages represent a key cellular component of the liver, and are essential for maintaining tissue homeostasis and ensuring rapid responses to hepatic injury. Our understanding of liver macrophages has been revolutionized by the delineation of heterogeneous subsets of these cells. Kupffer cells are a self-sustaining, liver-resident population of macrophages and can be distinguished from the monocyte-derived macrophages that rapidly accumulate in the injured liver. Specific environmental signals further determine the polarization and function of hepatic macrophages...
March 20, 2017: Nature Reviews. Immunology
https://www.readbyqxmd.com/read/28315398/hepatic-expressions-of-cannabinoid-receptors-cb1-and-cb2-correlate-with-the-fibrogenesis-in-patients-with-chronic-hepatitis-b
#8
Erhei Dai, Lianshan Zhang, Lihong Ye, Shiqing Wan, Lulu Feng, Qi Qi, Fang Yao, Zhen Li
AIM: The endocannabinoid system is involved in the pathogenesis of liver fibrosis. However, most of the findings come from experiment researches on animal model or clinical trial on chronic hepatitis C. The roles of cannabinoid receptor 1 (CB1) and cannabinoid receptor 2 (CB2) in hepatofibrosis on patients with chronic hepatitis B(CHB) have not been studied universally. This study aimed to explore the relationship between liver fibrosis and expressions of CB1 and CB2 on patients with CHB...
March 14, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28315314/nicotine-promotes-cholangiocarcinoma-growth-in-xenograft-mice
#9
Allyson K Martínez, Kendal Jensen, Chad Hall, April O'Brien, Laurent Ehrlich, Tori White, Fanyin Meng, Tianhao Zhou, John Greene, Francesca Bernuzzi, Pietro Invernizzi, David E Dostal, Terry Lairmore, Gianfranco Alpini, Shannon Glaser
Nicotine, the main addictive substance in tobacco, is known to play a role in the development and/or progression of a number of malignant tumors. However, nicotine's involvement in the pathogenesis of cholangiocarcinoma is controversial. Therefore, we studied the effects of nicotine on the growth of cholangiocarcinoma cells in vitro and the progression of cholangiocarcinoma in a mouse xenograft model. The predominant subunit responsible for nicotine-mediated proliferation in normal and cancer cells, the α7 nicotinic acetylcholine receptor (α7-nAChR), was more highly expressed in human cholangiocarcinoma cell lines compared with normal human cholangiocytes...
March 14, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28314916/texture-analysis-of-the-liver-at-mdct-for-assessing-hepatic-fibrosis
#10
Meghan G Lubner, Kyle Malecki, John Kloke, Balaji Ganeshan, Perry J Pickhardt
PURPOSE: To evaluate CT texture analysis (CTTA) for staging of hepatic fibrosis (stages F0-F4) METHODS: Quantitative texture analysis (QTA) of the liver was performed on abdominal MDCT scans using commercially available software (TexRAD), which uses a filtration-histogram statistic-based technique. Single-slice ROI measurements of the total liver, Couinaud segments IV-VIII, and segments I-III were obtained. CTTA parameters were correlated against fibrosis stage (F0-F4), with biopsy performed within one year for all cases with intermediate fibrosis (F1-F3)...
March 17, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28314476/polydatin-alleviates-alcohol-induced-acute-liver-injury-in-mice-relevance-of-matrix-metalloproteinases-mmps-and-hepatic-antioxidants
#11
Meghana Koneru, Bidya Dhar Sahu, Sagarika Gudem, Madhusudana Kuncha, Halley Gora Ravuri, Jerald Mahesh Kumar, Eswar Kumar Kilari, Ramakrishna Sistla
BACKGROUND: Alcohol, a most commonly consumed beverage, is the foremost cause of liver injury throughout the world. Polydatin, a stilbenoid glucoside, was known to possess antioxidant and anti-inflammatory properties and is being investigated for use in various disorders. PURPOSE: The present study was intended at investigating the hepatoprotective efficacy of polydatin against acute-alcohol induced liver injury model in mice. STUDY DESIGN: C57BL/6 mice were fed with five doses of 50% ethyl alcohol (10ml/kg body weight) to induce acute liver injury...
April 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28304404/interactions-between-th1-cells-and-tregs-affect-regulation-of-hepatic-fibrosis-in-biliary-atresia-through-the-ifn-%C3%AE-stat1-pathway
#12
Jie Wen, Ying Zhou, Jun Wang, Jie Chen, Wenbo Yan, Jin Wu, Junkai Yan, Kejun Zhou, Yongtao Xiao, Yang Wang, Qiang Xia, Wei Cai
Regulatory T cells (Tregs) and CD4(+) T helper (Th) cells have important roles in bile duct injury of biliary atresia (BA). However, their impacts on liver fibrosis are undefined. Between 2013 and 2016, 146 patients with various stages of BA were enrolled in this study. Peripheral blood, liver biopsy and lymph node samples were collected. Flow cytometry, magnetic cell sorting and immunostaining were used to characterize lymphocytes from BA patients. Deficiency of Tregs was observed along with increased Th1, Th2 and Th17 frequencies in the peripheral blood and livers of BA patients...
March 17, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28303974/antifibrotic-effect-of-pirfenidone-in-a-mouse-model-of-human-nonalcoholic-steatohepatitis
#13
Chikara Komiya, Miyako Tanaka, Kyoichiro Tsuchiya, Noriko Shimazu, Kentaro Mori, Shunsaku Furuke, Yasutaka Miyachi, Kumiko Shiba, Shinobu Yamaguchi, Kenji Ikeda, Kozue Ochi, Kazuhiko Nakabayashi, Ken-Ichiro Hata, Michiko Itoh, Takayoshi Suganami, Yoshihiro Ogawa
Non-alcoholic steatohepatitis (NASH) is characterized by steatosis with lobular inflammation and hepatocyte injury. Pirfenidone (PFD) is an orally bioavailable pyridone derivative that has been clinically used for the treatment of idiopathic pulmonary fibrosis. However, it remains unknown whether PFD improves liver fibrosis in a mouse model with human NASH-like phenotypes. In this study, we employed melanocortin 4 receptor-deficient (MC4R-KO) mice as a mouse model with human NASH-like phenotypes to elucidate the effect and action mechanisms of PFD on the development of NASH...
March 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28303329/diagnostic-performance-of-transient-elastography-for-detection-of-methotrexate-induced-liver-injury-using-roenigk-classification-in-asian-patients-with-psoriasis-a-retrospective-study
#14
Pasinee Rongngern, Leena Chularojanamontri, Chanisada Wongpraparut, Narumol Silpa-Archa, Watcharasak Chotiyaputta, Ananya Pongpaibul, Phunchai Charatcharoenwitthaya
Liver biopsy, the gold standard for monitoring methotrexate-induced liver fibrosis in psoriasis patients, has potential morbidity and mortality. Transient elastography (TE) has been widely used as an alternative non-invasive method. Currently, psoriasis-specific data of TE comparing to Roenigk histopathology is lacking. This retrospective study assessed the diagnostic performance of TE in the detection of methotrexate-induced liver injury and liver fibrosis in Asian psoriasis patients. Risk factors that associated with liver injury by TE and histopathology were also determined...
March 16, 2017: Archives of Dermatological Research
https://www.readbyqxmd.com/read/28303169/diallyl-trisulfide-suppresses-oxidative-stress-induced-activation-of-hepatic-stellate-cells-through-production-of-hydrogen-sulfide
#15
Feng Zhang, Huanhuan Jin, Li Wu, Jiangjuan Shao, Xiaojing Zhu, Anping Chen, Shizhong Zheng
Accumulating data reveal that garlic has beneficial effects against chronic liver disease. We previously reported that diallyl trisulfide (DATS), the primary organosulfur compound in garlic, reduced fibrosis and attenuated oxidative stress in rat fibrotic liver. The present study was aimed at elucidating the underlying mechanisms. The primary rat hepatic stellate cells (HSCs) were cultured and stimulated with hydrogen peroxide (H2O2) for inducing HSC activation under oxidative stress. We examined the effects of DATS on the profibrogenic properties and oxidative stress in H2O2-treated HSCs...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28302560/2-3-7-8-tetrachlorodibenzo-p-dioxin-tcdd-induces-hepatic-stellate-cell-hsc-activation-and-liver-fibrosis-in-c57bl6-mouse-via-activating-akt-and-nf-%C3%AE%C2%BAb-signaling-pathways
#16
Ming Han, Xipeng Liu, Suyi Liu, Guanglei Su, Xikang Fan, Jie Chen, Qianting Yuan, Guangfei Xu
2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) is a widespread environmental pollutant that could induce serious toxic effects in both humans and rodents. Some studies suggested that TCDD exposure may facilitate the activation of hepatic stellate cells (HSCs) and liver injury. However, the underlying molecular mechanism by which environmental pollutants promote liver injury remains poorly understood. In the present study, we established an animal model of TCDD exposure by intraperitoneal injection of TCDD in male C57BL/6J mice...
March 13, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28302418/lncrna-atb-microrna-200a-%C3%AE-catenin-regulatory-axis-involved-in-the-progression-of-hcv-related-hepatic-fibrosis
#17
Na Fu, Su-Xian Zhao, Ling-Bo Kong, Jing-Hua Du, Wei-Guang Ren, Fang Han, Qing-Shan Zhang, Wen-Cong Li, Cui Po, Rong-Qi Wang, Yu-Guo Zhang, Yue-Min Nan
OBJECTIVE(S): Long noncoding RNAs (lncRNAs)-activated by transforming growth factor beta (lncRNA-ATB) is known to be involved in the invasion of hepatocellular carcinoma by regulating target gene miR-200a. However, the role and molecular mechanisms of lncRNA-ATB/miR-200a in HCV-related liver fibrosis remains unclear. In this study, we examined the expression of lncRNA-ATB/miR-200a, and their target gene β-Catenin in liver tissues of HCV patients and hepatic stellate cells (HSCs) to elucidate the possible role of lncRNA-ATB/miR-200a axis in HSC activation and development of liver fibrosis...
March 13, 2017: Gene
https://www.readbyqxmd.com/read/28302166/secreted-phospholipase-a2-of-clonorchis-sinensis-activates-hepatic-stellate-cells-through-a-pathway-involving-jnk-signalling
#18
Yinjuan Wu, Ye Li, Mei Shang, Yu Jian, Caiqin Wang, Adham Sameer A Bardeesi, Zhaolei Li, Tingjin Chen, Lu Zhao, Lina Zhou, Ai He, Yan Huang, Zhiyue Lv, Xinbing Yu, Xuerong Li
BACKGROUND: Secreted phospholipase A2 (sPLA2) is a protein secreted by Clonorchis sinensis and is a component of excretory and secretory products (CsESPs). Phospholipase A2 is well known for its role in liver fibrosis and inhibition of tumour cells. The JNK signalling pathway is involved in hepatic stellate cells (HSCs) activation. Blocking JNK activity with SP600125 inhibits HSCs activation. In a previous study, the protein CssPLA2 was expressed in insoluble inclusion bodies. Therefore, it's necessary to express CssPLA2 in water-soluble form and determine whether the enzymatic activity of CssPLA2 or cell signalling pathways is involved in liver fibrosis caused by clonorchiasis...
March 16, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28302006/transplantation-for-large-liver-tumors-in-the-setting-of-abernethy-malformation
#19
İlgin Özden, Ayşen Yavru, Mine Güllüoğlu, Aydin Alper, Orhan Bilge, Serdar Cantez, Özlem Durmaz
In this study, we report our experiences on the role of transplantation in 2 patients with large liver tumors in the setting of Abernethy malformation. Patient 1 was a 17-year-old boy who was referred for hepatic masses and recurrent hepatic encephalopathy episodes. Computed tomography and magnetic resonance imaging showed 2 large tumors (4 and 8 cm) in the liver. The portal vein drained directly into the vena cava. Core biopsy of the larger mass revealed fibrosis and regenerative hyperplasia. There were hyperintense signals in the T1-weighted images in the globus pallidus...
March 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28301738/active-immunization-against-transforming-growth-factor-beta1-prevents-hepatic-fibrosis-in-a-rat-model-of-liver-disease
#20
Hong Ji, Gerald Y Minuk, Zhikang Peng, Yongping Chen, Chenwei Pan, Yuewen Gong
Transforming growth factor-beta1 (TGF-β1) plays an important role in hepatic fibrogenesis. To document the effects of active immunization against TGF-β1 on hepatic fibrosis in an animal model of chronic liver disease. BALB/c mice were immunized against three different peptides of TGF-β1 ligated into hepatitis B virus core protein (HBVc). Titers of TGF-β1 antibodies were documented by enzyme linked immunoassays and antibody activity by cell membrane receptor binding and proliferation assays. The most immunogenic recombinant HBVc+TGF-β1 peptide (HBVc+C) then served as a vaccine in Sprague-Dawley rats with dimethylnitrosamine-induced chronic liver disease...
March 16, 2017: Canadian Journal of Physiology and Pharmacology
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