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Nonalcoholic steatohepatitis

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https://www.readbyqxmd.com/read/29045180/quantitative-liver-mri-biopsy-correlation-in-pediatric-and-young-adult-patients-with-nonalcoholic-fatty-liver-disease-can-one-be-used-to-predict-the-other
#1
Jonathan R Dillman, Andrew T Trout, Emma N Costello, Suraj D Serai, Kristin S Bramlage, Rohit Kohli, Stavra A Xanthakos
OBJECTIVE: The purpose of this study is to determine the relationships between quantitative liver MRI measurements and liver biopsy findings in pediatric and young adult patients with nonalcoholic fatty liver disease (NAFLD). MATERIALS AND METHODS: Data were obtained from a registry that prospectively enrolls pediatric and young adult patients with biopsy-confirmed NAFLD at our tertiary medical center with parent or guardian and subject informed consent, as appropriate...
October 18, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29040984/ability-of-cytokeratin-18-fragments-and-fib-4-index-to-diagnose-overall-and-mild-fibrosis-nonalcoholic-steatohepatitis-in-japanese-nonalcoholic-fatty-liver-disease-patients
#2
Natsuko Kobayashi, Takashi Kumada, Hidenori Toyoda, Toshifumi Tada, Takanori Ito, Masayoshi Kage, Takeshi Okanoue, Masatoshi Kudo
BACKGROUND: Several laboratory markers used in lieu of liver biopsy are reportedly useful in the diagnosis of nonalcoholic steatohepatitis (NASH). In the present study, we investigated the diagnostic impact of various non-invasive markers for predicting NASH. METHODS: A total of 229 nonalcoholic fatty liver disease (NAFLD) patients who underwent liver biopsy were enrolled for the study. The diagnostic ability of various markers to diagnose NASH from NAFLD was investigated...
2017: Digestive Diseases
https://www.readbyqxmd.com/read/29038049/inhibition-of-egfr-attenuates-fibrosis-and-stellate-cell-activation-in-diet-induced-model-of-nonalcoholic-fatty-liver-disease
#3
Dandan Liang, Hongjin Chen, Leping Zhao, Wenxin Zhang, Jie Hu, Zhiguo Liu, Peng Zhong, Wei Wang, Jingying Wang, Guang Liang
Nonalcoholic fatty liver disease (NAFLD) is the most common cause of chronic liver disease. NAFLD begins with steatosis and advances to nonalcoholic steatohepatitis (NASH) and cirrhosis. The molecular mechanisms involved in NAFLD progression are not understood. Based on recent studies showing dysregulation of epidermal growth factor receptor (EGFR) in animal models of liver injury, we sought to determine if inhibition of EGFR mitigates liver fibrosis and HSC activation in NAFLD. We utilized the high fat diet (HFD)-induced murine model of liver injury to study the role of EGFR in NAFLD...
October 13, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29037210/a-vicious-circle-between-insulin-resistance-and-inflammation-in-nonalcoholic-fatty-liver-disease
#4
REVIEW
Zhonge Chen, Rong Yu, Ying Xiong, Fangteng Du, Shuishan Zhu
Nonalcoholic fatty liver disease (NAFLD) comprises a spectrum of diseases, including simple steatosis, nonalcoholic steatohepatitis (NASH), liver cirrhosis and hepatocellular carcinoma. Lipotoxicity, insulin resistance (IR) and inflammation are involved in the disease process. Lipotoxicity promotes inflammation and IR, which in turn, increase adipocyte lipolysis and exacerbates lipotoxicity. Furthermore, IR and inflammation form a vicious circle, with each condition promoting the other and accelerating the development of NAFLD in the presence of lipotoxicity...
October 16, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/29027308/animal-models-for-analyzing-metabolic-syndrome-associated-liver-diseases
#5
REVIEW
Koichi Tsuneyama, Kazuchika Nishitsuji, Minoru Matsumoto, Tomoko Kobayashi, Yuki Morimoto, Takaaki Tsunematsu, Hirohisa Ogawa
Metabolic syndrome (MS) is a worldwide healthcare issue and a dominant risk factor for the development of incurable diseases affecting the entire body. The hepatic manifestations of MS include nonalcoholic fatty liver disease (NAFLD) and its progressive variant, nonalcoholic steatohepatitis (NASH). NASH is known to progress to liver cirrhosis and hepatocellular carcinoma (HCC). Excellent animal models for determining the mechanism of pathogenesis and establishing therapeutic treatment of NASH/HCC are strongly required worldwide...
October 12, 2017: Pathology International
https://www.readbyqxmd.com/read/29026064/the-effect-of-recipient-body-mass-index-and-its-extremes-on-survival-and-graft-vascular-and-biliary-complications-after-liver-transplantation-a-single-center-retrospective-study
#6
Emmanouil Giorgakis, Michele Tedeschi, Eliano Bonaccorsi-Riani, Shirin Elizabeth Khorsandi, Krishna Menon, Hector Vilca-Melendez, Wayel Jassem, Parthi Srinivasan, Andreas Prachalias, Nigel Heaton
BACKGROUND This is the largest UK-based study on the effect of recipient body mass index (BMI) and its extremes (BMI <18.5 and BMI ≥35 kg/m²) on liver transplant (LT) outcomes. Its purpose was to analyze the BMI effect on post-LT mortality, graft loss, primary non-function (PNF), and graft vascular and biliary complications. MATERIAL AND METHODS Data were retrieved from a single-center LT database of 2,115 consecutive patients receiving first LT during period February 2004 to September 2015. Survivals were compared across the BMI groups; the effects of recipient BMI on survival, PNF, and graft vascular and biliary complications were analyzed via regression...
October 13, 2017: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/29025246/vaspin-mrna-levels-in-the-liver-of-morbidly-obese-women-with-nonalcoholic-fatty-liver-disease
#7
Marek Waluga, Michał Kukla, Michał Żorniak, Marta Grabiec, Maciej Kajor, Michał Dyaczyński, Grzegorz Kowalski, Dominika Żądło, Agnieszka Berdowska, Rafał Kotulski, Rafał J Bułdak, Tomasz Sawczyn, Ewa Waluga, Paweł Olczyk, Marek Hartleb
The aim of this study was to evaluate hepatic vaspin mRNA in morbidly obese women with nonalcoholic fatty liver disease (NAFLD) and to look for its relationships with metabolic and histopathological features. The study included 56 severely obese women who underwent intraoperative wedge liver biopsy during bariatric surgery. Hepatic vaspin mRNA was assessed by quantitative real-time PCR. Vaspin mRNA found in all included patients was markedly higher in patients with body mass index (BMI) ≥ 40 kg/m2 (4.59 ±3...
2017: Polish Journal of Pathology: Official Journal of the Polish Society of Pathologists
https://www.readbyqxmd.com/read/29025245/hepatic-chemerin-mrna-in-morbidly-obese-patients-with-nonalcoholic-fatty-liver-disease
#8
Maciej Kajor, Michał Kukla, Marek Waluga, Łukasz Liszka, Michał Dyaczyński, Grzegorz Kowalski, Dominika Żądło, Agnieszka Berdowska, Mateusz Chapuła, Anna Kostrząb-Zdebel, Rafał J Bułdak, Tomasz Sawczyn, Marek Hartleb
The aim of this study was to investigate hepatic chemerin mRNA, serum chemerin concentration, and immunohistochemical staining for chemerin and and chemokine receptor-like 1 (CMKLR1) in hepatic tissue in 56 morbidly obese women with nonalcoholic fatty liver disease (NAFLD) and to search for a relationship with metabolic and histopathological features. Chemerin mRNA was assessed by quantitative real-time PCR, chemerin, and CMKLR1 immunohistochemical expression with specific antibodies, while serum chemerin concentration was assessed with commercially available enzyme-linked immunosorbent assays...
2017: Polish Journal of Pathology: Official Journal of the Polish Society of Pathologists
https://www.readbyqxmd.com/read/29024407/ghrelin-deletion-protects-against-age-associated-hepatic-steatosis-by-downregulating-the-c-ebp%C3%AE-p300-dgat1-pathway
#9
Bobby Guillory, Nicole Jawanmardi, Polina Iakova, Barbara Anderson, Pu Zang, Nikolai A Timchenko, Jose M Garcia
Nonalcoholic fatty liver disease (NAFLD) is the most common liver disease worldwide. NAFLD usually begins as low-grade hepatic steatosis which further progresses in an age-dependent manner to nonalcoholic steatohepatitis (NASH), fibrosis, cirrhosis, and hepatocellular carcinoma in some patients. Ghrelin is a hormone known to promote adiposity in rodents and humans, but its potential role in hepatic steatosis is unknown. We hypothesized that genetic ghrelin deletion will protect against the development of age-related hepatic steatosis...
October 12, 2017: Aging Cell
https://www.readbyqxmd.com/read/29023783/melatonin-application-in-targeting-oxidative-induced-liver-injuries-a-review
#10
REVIEW
Keywan Mortezaee, Neda Khanlarkhani
It is believed that oxidative stress is a key causing factor of liver damage induced by a variety of agents, and it is a major contributing factor in almost all conditions compromising liver function, including ischemia-reperfusion injury (IRI), nonalcoholic fatty liver disease (NAFLD), nonalcoholic steatohepatitis (NASH), liver fibrosis, liver cirrhosis and hepatocellular carcinoma (HCC). Liver is the organ that high concentration of melatonin (N-acetyl-5-methoxytryptamine) accumulates, and it is the sole organ where circulating melatonin is metabolized...
October 12, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29023757/acute-autoimmune-hemolytic-anemia-due-to-anti-en-a-autoantibody-successfully-treated-with-rituximab
#11
Elena Nedelcu, Megan Desai, Jennifer Green, Kathleen M Bensing, Austin Turner, David Head, Pampee P Young
BACKGROUND: Autoimmune hemolytic anemia (AIHA) due to anti-En(a) has been previously reported in association with massive intravascular hemolysis, disseminated intravascular coagulation, and fatal outcomes. Here we report a case of successfully treated AIHA due to anti-En(a) . CASE REPORT: A 69-year-old male with a past medical history of cirrhosis due to nonalcoholic steatohepatitis status post-orthotopic liver transplant presented with 1-month history of progressive anemia...
October 11, 2017: Transfusion
https://www.readbyqxmd.com/read/29018509/circrna_0046367-prevents-hepatoxicity-of-lipid-peroxidation-an-inhibitory-role-against-hepatic-steatosis
#12
Xing-Ya Guo, Jian-Neng Chen, Fang Sun, Yu-Qin Wang, Qin Pan, Jian-Gao Fan
Hepatic steatosis reflects the miRNA-related pathological disorder with triglyceride accumulation and lipid peroxidation, which leads to nonalcoholic steatohepatitis, liver fibrosis/cirrhosis, and even hepatocellular carcinoma. Circular RNA (circRNA)/miRNA interaction reveals a novel layer of epigenetic regulation, yet the miRNA-targeting circRNA remains uncertain in hepatic steatosis. Here, we uncover circRNA_0046367 to be endogenous modulator of miR-34a that underlies hepatic steatosis. In contrast to its expression loss during the hepatocellular steatosis in vivo and in vitro, circRNA_0046367 normalization abolished miR-34a's inhibitory effect on peroxisome proliferator-activated receptor α (PPARα) via blocking the miRNA/mRNA interaction with miRNA response elements (MREs)...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28993096/altered-expression-of-malat1-lncrna-in-nonalcoholic-steatohepatitis-fibrosis-regulates-cxcl5-in-hepatic-stellate-cells
#13
Fatjon Leti, Christophe Legendre, Christopher D Still, Xin Chu, Anthony Petrick, Glenn S Gerhard, Johanna K DiStefano
In the present study, we sought to identify long noncoding RNA (lncRNA) expression profiles in nonalcoholic steatohepatitis (NASH) patients with histologic evidence of lobular inflammation and advanced fibrosis. We profiled lncRNA expression using RNA-sequencing of wedge liver biopsies from 24 nonalcoholic fatty liver disease (NAFLD) patients with normal liver histology, 53 NAFLD patients with lobular inflammation, and 65 NAFLD patients with advanced fibrosis. Transcript profiling identified 4432 and 4057 differentially expressed lncRNAs in comparisons of normal tissue with lobular inflammation and fibrosis samples, respectively...
September 19, 2017: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/28990215/ultrasonic-perfluorohexane-loaded-monocyte-imaging-toward-a-minimally-invasive-technique-for-selective-detection-of-liver-inflammation-in-fatty-liver-disease
#14
Koen D Reesink, Tim Hendrikx, Patrick J van Gorp, Arnold P Hoeks, Ronit Shiri-Sverdlov
OBJECTIVES: To investigate the utility of ultrasonic (US) perfluorohexane (PFH)-loaded monocyte imaging for detection of liver inflammation in fatty liver disease. METHODS: C57Bl6 mice were injected intraperitoneally with tumor necrosis factor α and assessed by US PFH-loaded monocyte imaging 3 hours later. Echogenic monocytes were injected intravenously, leading to a transient increase in liver tissue intensity on a US perfusion scan. The contrast wash-out time constant was hypothesized to reflect the degree of inflammation...
October 9, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28988798/differential-carbonylation-of-proteins-in-end-stage-human-fatty-and-nonfatty-nash
#15
Colin T Shearn, Laura M Saba, James R Roede, David J Orlicky, Alisabeth H Shearn, Dennis R Petersen
OBJECTIVE: In the liver, a contributing factor in the pathogenesis of non-alcoholic fatty liver disease is oxidative stress leading to the accumulation of highly reactive electrophilic α/β unsaturated aldehydes. The objective of this study was to determine if significant differences were evident when evaluating carbonylation in human end-stage fatty nonalcoholic steatohepatitis (fNASH) compared to end-stage nonfatty NASH (nfNASH). METHODS: Using hepatic tissue obtained from healthy humans and patients diagnosed with end stage nfNASH or fNASH, overall carbonylation was assessed by immunohistochemistry (IHC) and LC-MS/MS followed by bioinformatics...
October 6, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28987260/treatment-strategies-for-nonalcoholic-fatty-liver-disease-and-nonalcoholic-steatohepatitis
#16
REVIEW
Pegah Golabi, Haley Bush, Zobair M Younossi
Nonalcoholic fatty liver disease (NAFLD) is recognized as a global health problem and as a common cause of chronic liver disease. Nonalcoholic steatohepatitis (NASH) carries an increased risk for development of advanced liver disease. Lifestyle modifications with diet and exercise have been the initial management recommendation. However, these changes are difficult to achieve and sustain overtime. There are pharmacologic agents being considered for treatment of NASH. Some target insulin resistance and others focus on oxidative stress, inflammation, apoptosis, and fibrosis...
November 2017: Clinics in Liver Disease
https://www.readbyqxmd.com/read/28986475/pediatric-cytochrome-p450-activity-alterations-in-nonalcoholic-steatohepatitis
#17
Hui Li, Canet J Mark, John D Clarke, Dean Billheimer, Stavra A Xanthakos, Joel E Lavine, Robert P Erickson, Nathan J Cherrington
Variable drug responses(VDRs) are dependent upon individual variation in the activity of drug-metabolizing enzymes including cytochrome P450s(CYPs). As the most common chronic liver disease in children and adults, nonalcoholic steatohepatitis(NASH) has been identified as a source of significant inter-individual variation in hepatic drug metabolism. Compared to adults, children present age-related differences in pharmacokinetics and pharmacodynamics. The purpose of this study was to determine the impact of fatty liver disease severity on the activity of a variety of CYPs in children and adolescents...
October 6, 2017: Drug Metabolism and Disposition: the Biological Fate of Chemicals
https://www.readbyqxmd.com/read/28985395/nonhuman-primates-and-translational-research-cardiovascular-disease
#18
Laura A Cox, Michael Olivier, Kimberly Spradling-Reeves, Genesio M Karere, Anthony G Comuzzie, John L VandeBerg
Cardiovascular disease (CVD) is the leading cause of morbidity and mortality in the United States. Human epidemiological studies provide challenges for understanding mechanisms that regulate initiation and progression of CVD due to variation in lifestyle, diet, and other environmental factors. Studies describing metabolic and physiologic aspects of CVD, and those investigating genetic and epigenetic mechanisms influencing CVD initiation and progression, have been conducted in multiple Old World nonhuman primate (NHP) species...
August 28, 2017: ILAR Journal
https://www.readbyqxmd.com/read/28985205/corrigendum-targeting-casp8-and-fadd-like-apoptosis-regulator-ameliorates-nonalcoholic-steatohepatitis-in-mice-and-nonhuman-primates
#19
Pi-Xiao Wang, Yan-Xiao Ji, Xiao-Jing Zhang, Ling-Ping Zhao, Zhen-Zhen Yan, Peng Zhang, Li-Jun Shen, Xia Yang, Jing Fang, Song Tian, Xue-Yong Zhu, Jun Gong, Xin Zhang, Qiao-Fang Wei, Yong Wang, Jing Li, Lu Wan, Qingguo Xie, Zhi-Gang She, Zhihua Wang, Zan Huang, Hongliang Li
This corrects the article DOI: 10.1038/nm.4290.
October 6, 2017: Nature Medicine
https://www.readbyqxmd.com/read/28983452/role-of-fxr-in-liver-inflammation-during-nonalcoholic-steatohepatitis
#20
Laura E Armstrong, Grace L Guo
PURPOSE OF REVIEW: About 15-25% of patients with simple steatosis of non-alcoholic fatty liver disease progresses to non-alcoholic steatohepatitis (NASH), and the underlying mechanism for this progression has not been elucidated. NASH ultimately could progress to cirrhosis, an irreversible condition. RECENT FINDINGS: Farnesoid X receptor (FXR) has been studied for its role in modulating inflammation, and the expression of FXR is down-regulated during NASH development...
April 2017: Current Pharmacology Reports
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