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Liver fibrosis

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https://www.readbyqxmd.com/read/28231488/the-value-of-elastpq-for-the-evaluation-of-liver-stiffness-in-patients-with-b-and-c-chronic-hepatopathies
#1
Ruxandra Mare, Ioan Sporea, Raluca Lupuşoru, Roxana Şirli, Alina Popescu, Mirela Danila, Corina Pienar
: The aim of this study was to evaluate the diagnostic performance of a point shear wave elastography using ARFI technique - ElastPQ, in patients with B and C chronic hepatopathies, using Transient Elastography (TE) as the reference method, since it is a validated method for liver fibrosis assessment. SUBJECTS AND METHODS: the study included 228 consecutive subjects with chronic hepatopathies (26% HBV, 74% HCV) from whom 51% had liver cirrhosis. Liver stiffness (LS) was evaluated in the same session by means of 2 elastographic methods: TE (FibroScan, EchoSens) and ElastPQ (Affinity, Philips) techniques...
February 9, 2017: Ultrasonics
https://www.readbyqxmd.com/read/28231420/serum-ferritin-concentration-predicts-hepatic-fibrosis-better-than-hepatic-iron-concentration-in-human-hfe-hemochromatosis
#2
Marnie J Wood, Darrell H G Crawford, Leesa F Wockner, Lawrie W Powell, Grant A Ramm
BACKGROUND & AIMS: Ferritin is purported to have proinflammatory and profibrogenic effects on hepatic stellate cells. Thus, rather than acting as a passive indicator of hepatic iron concentration (HIC) in hemochromatosis, ferritin may directly influence fibrosis. This study evaluated whether serum ferritin is a better predictor of hepatic fibrosis compared to variables previously associated with increased fibrosis risk in hemochromatosis. METHODS: We identified 291 C282Y HFE-homozygous patients who had undergone liver biopsy for histological fibrosis staging and measurement of HIC...
February 23, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28231326/expression-of-glyoxalase-i-is-reduced-in-cirrhotic-livers-a-possible-mechanism-in-the-development-of-cirrhosis
#3
Marcus Hollenbach, Antje Thonig, Sabine Pohl, Cristina Ripoll, Maurice Michel, Alexander Zipprich
BACKGROUND: High concentrations of methylglyoxal (MGO) cause cytotoxiticy via formation of advanced glycation endproducts (AGEs) and inflammation. MGO is detoxificated enzymatically by glyoxalase-I (Glo-I). The aim of this study was to analyze the role of Glo-I during the development of cirrhosis. METHODS: In primary hepatocytes, hepatic stellate cells (pHSC) and sinusoidal endothelial cells (pLSEC) from rats with early (CCl4 8wk) and advanced cirrhosis (CCl4 12wk) expression and activity of Glo-I were determined and compared to control...
2017: PloS One
https://www.readbyqxmd.com/read/28231240/galectin-3-histone-deacetylases-and-hedgehog-signaling-possible-convergent-targets-in-schistosomiasis-induced-liver-fibrosis
#4
REVIEW
Felipe Leite de Oliveira, Katia Carneiro, José Marques Brito, Mariana Cabanel, Jonathas Xavier Pereira, Ligia de Almeida Paiva, Wingkin Syn, Neil C Henderson, Marcia Cury El-Cheikh
Schistosomiasis affects approximately 240 million people in the world. Schistosoma mansoni eggs in the liver induce periportal fibrosis and hepatic failure driven by monocyte recruitment and macrophage activation, resulting in robust Th2 response. Here, we suggested a possible involvement of Galectin-3 (Gal-3), histone deacetylases (HDACs), and Hedgehog (Hh) signaling with macrophage activation during Th1/Th2 immune responses, fibrogranuloma reaction, and tissue repair during schistosomiasis. Gal-3 is highly expressed by liver macrophages (Kupffer cells) around Schistosoma eggs...
February 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28230981/high-potency-phenylquinoxalinone-cystic-fibrosis-transmembrane-conductance-regulator-cftr-activators
#5
Jung-Ho Son, Jie S Zhu, Puay-Wah Phuan, Onur Cil, Andrew P Teuthorn, Colton K Ku, Sujin Lee, Alan S Verkman, Mark J Kurth
We previously identified phenylquinoxalinone CFTRact-J027 (4) as a cystic fibrosis transmembrane conductance regulator (CFTR) activator with an EC50 of ~200 nM, and demonstrated its therapeutic efficacy in mouse models of constipation. Here, structure-activity studies were done on 36 synthesized phenylquinoxalinone analogs to identify compounds with improved potency and altered metabolic stability. Synthesis of the phenylquinoxalinone core was generally accomplished by condensation of 1,2-phenylenediamines with substituted phenyloxoacetates...
February 23, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28230279/folate-protects-hepatocytes-of-hyperhomocysteinemia-mice-from-apoptosis-via-cystic-fibrosis-transmembrane-conductance-regulator-cftr-activated-endoplasmic-reticulum-stress
#6
Anning Yang, Yue Sun, Caiyan Mao, Songhao Yang, Min Huang, Mei Deng, Ning Ding, Xiaoling Yang, Minghao Zhang, Shaoju Jin, Yideng Jiang, Ying Huang
Folate deficiency is a known risk factor for liver injury; however, the underlying mechanism remains unclear. In this study, we employed a high homocysteine-induced liver injury model of Apolipoprotein E-deficient (ApoE(-/-) ) mice fed high-methionine diet and found that high homocysteine induced endoplasmic reticulum (ER) stress and liver cell apoptosis by downregulation of cystic fibrosis transmembrane conductance regulator (CFTR) expression; observations that were attenuated with supplementation of dietary folate...
February 23, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28229927/alteration-of-n-glycan-expression-profile-and-glycan-pattern-of-glycoproteins-in-human-hepatoma-cells-after-hcv-infection
#7
Tian Xiang, Ganglong Yang, Xiaoyu Liu, Yidan Zhou, Zhongxiao Fu, Fangfang Lu, Jianguo Gu, Naoyuki Taniguchi, Zengqi Tan, Xi Chen, Yan Xie, Feng Guan, Xiao-Lian Zhang
BACKGROUND: Hepatitis C virus (HCV) infection causes chronic liver diseases, liver fibrosis and even hepatocellular carcinoma (HCC). However little is known about any information of N-glycan pattern in human liver cell after HCV infection. METHODS: The altered profile of N-glycans in HCV-infected Huh7.5.1 cell were analyzed by using mass spectrometry. Then, lectin microarray, lectin pull-down assay, reverse transcription-quantitative real time PCR (RT-qPCR) and western-blotting were used to identify the altered N-glycosylated proteins and glycosyltransferases...
February 13, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28229818/relationship-between-calcium-channel-blockers-and-skin-fibrosis-in-patients-with-systemic-sclerosis
#8
Guowei Li, Jonathan D Adachi, Ji Cheng, Lehana Thabane, Marie Hudson, Marvin J Fritzler, Steven Lorenzi, Murray Baron, Maggie Larché
OBJECTIVES: Recent experimental evidence suggests that calcium channel blockers (CCBs) may have anti-fibrotic effects on liver and pulmonary fibrosis. We aimed to investigate whether use of CCBs was associated with the skin fibrosis in patients with systemic sclerosis (SSc). METHODS: Based on the 5-year follow-up data from the Canadian Scleroderma Research Group registry, we used the generalised estimating equations (GEE) model to assess the relationship between use of CCBs and the primary outcome of skin fibrosis measured by the modified Rodnan skin score (mRSS)...
January 31, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28229316/utility-of-the-elf-test-for-detecting-steatohepatitis-in-morbid-obese-patients-with-suspicion-of-nonalcoholic-fatty-liver-disease
#9
Iria Cebreiros López, Florentina Guzmán Aroca, Maria Dolores Frutos Bernal, Juan Antonio Luján Mompeán, Águeda Bas Bernal, Antonio Miguel Hernández Martínez, Enrique Martínez Barba, Jose Antonio Noguera Velasco, Pascual Parilla Paricio
BACKGROUND: Morbid obese patients have a high rate of nonalcoholic fatty liver disease (NAFLD) and nonalcoholic steatohepatitis (NASH). NASH is related to the progression and poor evolution of chronic hepatopathy in NAFLD, so that its detection makes it possible to identify the subjects who are most at risk in order to prioritize treatment. The ELF test (Enhanced Liver Fibrosis test; Siemens Diagnostics, NY, USA) has been assessed for its capacity to detect fibrosis in patients with NAFLD, but its capacity for diagnosing NASH has not been checked...
February 22, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28229097/pediatric-hypovitaminosis-d-molecular-perspectives-and-clinical-implications
#10
Rafiu Ariganjoye
Vitamin D, a secosteroid, is essential for the development and maintenance of healthy bone in both the adult and pediatric populations. Low level of 25-hydroxy vitamin D (25-(OH)-D) is highly prevalent in children worldwide and has been linked to various adverse health outcomes including rickets, osteomalacia, osteomalacic myopathy, sarcopenia, and weakness, growth retardation, hypocalcemia, seizure and tetany, autism, cardiovascular diseases, diabetes mellitus, cancers (prostate, colon, breast), infectious diseases (viral, tuberculosis), and autoimmune diseases, such as multiple sclerosis and Hashimoto's thyroiditis...
2017: Global Pediatric Health
https://www.readbyqxmd.com/read/28228506/low-plasma-zinc-is-associated-with-higher-mitochondrial-oxidative-stress-and-faster-liver-fibrosis-development-in-the-miami-adult-studies-in-hiv-cohort
#11
Sabrina S Martinez, Adriana Campa, Yinghui Li, Christina Fleetwood, Tiffanie Stewart, Venkataraghavan Ramamoorthy, Marianna K Baum
Background: Oxidative stress and reduced antioxidants may be a trigger for liver fibrogenesis. Reducing oxidative stress through higher antioxidant concentration may be a potential antifibrotic target.Objective: We aimed to investigate longitudinally whether plasma zinc, an antioxidant, is related to mitochondrial oxidative stress and the progression of liver fibrosis in the Miami Adult Studies in HIV (MASH) cohort.Methods: A prospective observational cohort study was conducted in 487 predominantly African American HIV-monoinfected and HIV/hepatitis C virus (HCV)-coinfected adults with a mean ± SD age of 47...
February 22, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28227294/early-diagnosis-of-nafld-nash-transition-using-mid-infrared-spectroscopy
#12
Siouar Bensaid, Amar Kachenoura, Nathalie Costet, Victor De Ledinghen, Julien Vergniol, Fabrice Laine, Bruno Turlin, Hugues Tariel, Lotfi Senhadji, Siouar Bensaid, Amar Kachenoura, Nathalie Costet, Victor De Ledinghen, Julien Vergniol, Fabrice Laine, Bruno Turlin, Hugues Tariel, Lotfi Senhadji, Hugues Tariel, Siouar Bensaid, Victor De Ledinghen, Fabrice Laine, Bruno Turlin, Lotfi Senhadji, Amar Kachenoura, Julien Vergniol, Nathalie Costet
Non-alcoholic fatty liver disease (NAFLD) is defined as an excessive accumulation of fat in the liver in the absence of excessive drinking of alcohol. Initially considered as benign and self-limited, NAFLD may progress to the malignant stage of non-alcoholic steatohepatitis (NASH) characterized by degenerate hepatocellular ballooning and lobular inflammation. NASH can lead to hepatic fibrosis and ultimately to cirrhosis and hepatocellular carcinoma. Unfortunately, the transition from NAFLD to NASH is difficult to detect so far...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227015/a-comparison-of-multimodal-biomarkers-for-chronic-hepatitis-b-assessment-using-recursive-feature-elimination
#13
Yanru Bai, Xin Chen, Changfeng Dong, Yingxia Liu, Zhiguo Zhang, Yanru Bai, Xin Chen, Changfeng Dong, Yingxia Liu, Zhiguo Zhang, Xin Chen, Changfeng Dong, Zhiguo Zhang, Yanru Bai, Yingxia Liu
An effective assessment of liver fibrosis in patients with chronic hepatitis B (CHB) is highly desired because it is important not only for clinical courses prediction, but also for the determination of antiviral therapy schemes. In recent years, various approaches for liver biopsies analysis have been highlighted, such as elastography techniques and serum markers, due to their properties of non-invasiveness. The aim of this study is to determine the best biomarkers or their combination by comparing multimodal biomarkers (ultrasound elastography parameters, biochemical hematologic parameters, and clinical parameters) for fibrosis assessment in chronic hepatitis B using a support vector machine combined with recursive feature elimination (RFE-SVM) approach...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28225987/can-fib4-and-nafld-fibrosis-scores-help-endocrinologists-refer-patients-with-non-alcoholic-fat-liver-disease-to-a-hepatologist
#14
Rodrigo Bremer Nones, Cláudia Pontes Ivantes, Maria Lucia Alves Pedroso
Objective: The objective of this study is to evaluate the performance of mathematical models used in non-invasive diagnosis of liver fibrosis in nonalcoholic fatty liver disease (NAFLD) patients to determine when the patient needs to be referred to a hepatologist. Subjects and methods: Patients referred by endocrinologists to the liver outpatient departments in two hospitals in Curitiba, Brazil, over a 72-month period were analyzed. The results calculated using the APRI, FIB 4, FORNS and NAFLD Fibrosis Score non-invasive liver fibrosis assessment models were analyzed and compared with histological staging of this population...
February 13, 2017: Archives of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28225568/liver-histology-and-diffusion-weighted-mri-in-children-with-nonalcoholic-fatty-liver-disease-a-magnet-study
#15
Paul Manning, Paul Murphy, Kang Wang, Jonathan Hooker, Tanya Wolfson, Michael S Middleton, Kimberly P Newton, Cynthia Behling, Hannah I Awai, Janis Durelle, Melissa N Paiz, Jorge E Angeles, Diana De La Pena, J Allen McCutchan, Jeffrey B Schwimmer, Claude B Sirlin
PURPOSE: To determine potential associations between histologic features of pediatric nonalcoholic fatty liver disease (NAFLD) and estimated quantitative magnetic resonance diffusion-weighted imaging (DWI) parameters. MATERIALS AND METHODS: This prospective, cross-sectional study was performed as part of the Magnetic Resonance Assessment Guiding NAFLD Evaluation and Treatment (MAGNET) ancillary study to the Nonalcoholic Steatohepatitis Clinical Research Network (NASH CRN)...
February 22, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28223730/magnetic-resonance-elastography-is-accurate-in-detecting-advanced-fibrosis-in-autoimmune-hepatitis
#16
Jin Wang, Neera Malik, Meng Yin, Thomas C Smyrk, Albert J Czaja, Richard L Ehman, Sudhakar K Venkatesh
AIM: To assess the value of magnetic resonance elastography (MRE) in detecting advanced fibrosis/cirrhosis in autoimmune hepatitis (AIH). METHODS: In this retrospective study, 36 patients (19 treated and 17 untreated) with histologically confirmed AIH and liver biopsy performed within 3 mo of MRE were identified at a tertiary care referral center. Liver stiffness (LS) with MRE was calculated by a radiologist, and inflammation grade and fibrosis stage in liver biopsy was assessed by a pathologist in a blinded fashion...
February 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28223370/the-lim-only-protein-fhl2-is-a-negative-regulator-of-tgf-%C3%AE-1-expression
#17
Jennifer Dahan, Florence Levillayer, Tian Xia, Yann Nouët, Catherine Werts, Martine Fanton d'Andon, Minou Adib-Conquy, Anne-Marie Cassard-Doulcier, Varun Khanna, Ju Chen, Thierry Tordjmann, Marie-Annick Buendia, Grégory Jouvion, Yu Wei
TGF-β1 is a master cytokine in many biological processes including tissue homeostasis, epithelial to mesenchymal transition and wound repair. Here we report that the four and a half LIM-only protein 2 (FHL2) is a critical regulator of TGF-β1 expression. Devoid of DNA-binding domain, FHL2 is a transcriptional co-factor that plays the role of co-activator or co-repressor depending on the cell and promoter contexts. We detected association of FHL2 with the TGF-β1 promoter, which showed higher activity in Fhl2(-/-) cells than WT cells in a reporter assay...
February 21, 2017: Molecular and Cellular Biology
https://www.readbyqxmd.com/read/28223291/ctrp7-deletion-attenuates-obesity-linked-glucose-intolerance-adipose-tissue-inflammation-and-hepatic-stress
#18
Pia S Petersen, Xia Lei, Risa M Wolf, Susana Rodriguez, Stefanie Y Tan, Hannah C Little, Michael A Schweitzer, Thomas H Magnuson, Kimberley E Steele, G William Wong
Chronic low-grade inflammation and cellular stress are important contributors to obesity-linked metabolic dysfunction. Here, we uncover an immune-metabolic role for C1q/TNF-related protein 7 (CTRP7), a secretory protein of the C1q family with previously unknown function. In obese humans, circulating CTRP7 levels were markedly elevated and positively correlated with BMI, glucose, insulin, insulin resistance index, hemoglobin A1c, and triglyceride levels. Expression of CTRP7 in liver was also significantly upregulated in obese humans and positively correlated with gluconeogenic genes...
February 21, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28222857/liver-fibrosis-assessed-with-transient-elastography-is-an-independent-risk-factor-for-ischemic-stroke
#19
Seung Up Kim, Dongbeom Song, Ji Hoe Heo, Joonsang Yoo, Beom Kyung Kim, Jun Yong Park, Do Young Kim, Sang Hoon Ahn, Kwang Joon Kim, Kwang-Hyub Han, Young Dae Kim
BACKGROUND AND AIMS: The relationship between liver fibrosis and the occurrence of ischemic stroke is unknown. We investigated the correlation between liver fibrosis assessed with transient elastography (TE) and the risk of ischemic stroke. METHODS: Between April 2013 and August 2014, patients with acute ischemic stroke and subjects who underwent a health check-up were included in the study. Liver fibrotic burden was assessed with TE in all participants. The degree of liver fibrosis was compared between groups by using various multiple logistic regression models and propensity-score matched analyses...
February 12, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28222401/combination-of-sitagliptin-and-silymarin-ameliorates-liver-fibrosis-induced-by-carbon-tetrachloride-in-rats
#20
Samia Salem Sokar, Magda El-Sayed El-Sayad, Mai El-Sayed Ghoneim, Abdelhadi Mohamed Shebl
Liver fibrosis is a common pathological condition that occurs in most conditions associated with chronic liver injury. Silymarin is a herbal product widely used for its hepatoprotective effect. Sitagliptin, a dipeptidyl peptidase-4 inhibitor (DPP4-I), is clinically used as an oral antidiabetic agent. This study was designed to investigate the effects of Sitagliptin, Silymarin, and their combination on established liver fibrosis in carbon tetrachloride (CCl4) rat model. Male albino rats received intraperitoneal injections of CCl4 three times a week for 7 weeks, as well as daily oral treatments of Sitagliptin (100mg/kg) or Silymarin (100mg/kg) or their combination during the 7 weeks of intoxication...
February 18, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
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