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steatosis and liver transplantation

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https://www.readbyqxmd.com/read/29299759/translating-scientific-discovery-the-need-for-preclinical-models-of-nonalcoholic-steatohepatitis
#1
REVIEW
Abdul M Oseini, Banumathi K Cole, Danny Issa, Ryan E Feaver, Arun J Sanyal
Non-alcoholic fatty liver disease (NAFLD) is the most common cause of chronic liver disease in the Western world, affecting about 1/3 of the US general population and remaining as a significant cause of morbidity and mortality. The hallmark of the disease is the excessive accumulation of fat within the liver cells (hepatocytes), which eventually paves the way to cellular stress, injury and apoptosis. NAFLD is strongly associated with components of the metabolic syndrome and is fast emerging as a leading cause of liver transplant in the USA...
January 3, 2018: Hepatology International
https://www.readbyqxmd.com/read/29291167/epidemic-of-non-alcoholic-fatty-liver-disease-and-hepatocellular-carcinoma
#2
REVIEW
Adnan Said, Aiman Ghufran
Non-alcoholic fatty liver disease (NAFLD) associated hepatocellular carcinoma (HCC) incidence is increasing worldwide, paralleling the obesity epidemic. Although most cases are associated with cirrhosis, HCC can occur without cirrhosis in NAFLD. Diabetes and obesity are associated risk factors for HCC in patients. Given the sheer magnitude of the underlying risk factors (diabetes, obesity, non-cirrhotic NAFLD) screening for HCC in the non-cirrhotic population is not recommended. Optimal screening strategies in NAFLD cirrhosis are not completely elucidated with Ultrasound having significant limitations in detection of liver lesions in the presence of obesity and steatosis...
December 10, 2017: World Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29286155/mesenchymal-stem-cells-reverse-high%C3%A2-fat-diet%C3%A2-induced-non%C3%A2-alcoholic-fatty-liver-disease-through-suppression-of-cd4-t-lymphocytes-in-mice
#3
Huafeng Wang, Huan Zhang, Biao Huang, Guolin Miao, Xiaoyan Yan, Gang Gao, Yongping Luo, Huize Chen, Wei Chen, Luhong Yang
Although the multipotency of mesenchymal stem cells (MSCs) makes them an attractive choice for clinical applications, immune modulation is an important factor affecting MSC transplantation. At present, the effect of treatment with MSCs on non‑alcoholic fatty liver disease (NAFLD) has received little attention. In the present study, a compact bone‑derived method was used to isolate mouse MSCs (mMSCs) and a high‑fat diet was used to establish a mouse model of NAFLD. Immunophenotypic features of mMSCs were analyzed using flow cytometry...
December 20, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29273476/gasdermin-d-plays-a-key-role-as-a-pyroptosis-executor-of-non-alcoholic-steatohepatitis-in-humans-and-mice
#4
Bing Xu, Mingzuo Jiang, Yi Chu, Weijie Wang, Di Chen, Xiaowei Li, Zhao Zhang, Di Zhang, Daiming Fan, Yongzhan Nie, Feng Shao, Kaichun Wu, Jie Liang
BACKGROUND & AIMS: Gasdermin D (GSDMD)-executed programmed necrosis is involved in inflammation and controls interleukin (IL)-1β release. However, the role of GSDMD in non-alcoholic steatohepatitis (NASH) remains unclear. We investigated the role of GSDMD in the pathogenesis of steatohepatitis. METHODS: Human liver tissues of non-alcoholic fatty liver disease (NAFLD) patients and control subjects were obtained to evaluate GSDMD expression. GSDMD knockout (GSDMD-/-) mice, obese db/db mice and their wild-type (WT) littermates were fed with methionine-and-choline-deficient (MCD) or control diet to induce steatohepatitis...
December 19, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/29249127/liver-transplantation-for-non-alcoholic-fatty-liver-disease
#5
Giacomo Germani, Chiara Becchetti
Non-alcoholic fatty liver disease (NAFLD) is considered the hepatic manifestation of metabolic syndrome (MS) [1], and it is defined by the presence of steatosis in >5% of hepatocytes, according to histological analysis or detected by specific proton density fat fraction obtained MRI. The term NAFLD covers two pathologically distinct conditions: non-alcoholic fatty liver (NAFL) and non-alcoholic steatohepatitis (NASH), which can have similar clinical presentation, but with different prognosis. Both conditions can lastly lead to the development of cirrhosis...
December 15, 2017: Minerva Gastroenterologica e Dietologica
https://www.readbyqxmd.com/read/29194512/alcohol-relapse-after-liver-transplantation-for-alcoholic-cirrhosis-impact-on-liver-graft-and-patient-survival-a-meta-analysis
#6
Sudha Kodali, Mohamed Kaif, Raseen Tariq, Ashwani K Singal
Aim: We performed meta-analysis to determine effect of alcohol relapse after liver transplantation (LT) for alcoholic cirrhosis on graft histology and survival. Methods: Studies were selected using following criteria: (a) LT for alcoholic cirrhosis, (b) reporting data on liver histology and/or patient survival among relapsers and abstainers, (c) minimum follow-up of 3 years. Random effects model was used to pool data to compare relapsers and abstainers on liver histology and patient survival...
November 29, 2017: Alcohol and Alcoholism: International Journal of the Medical Council on Alcoholism
https://www.readbyqxmd.com/read/29185228/deceased-donor-liver-transplant-experience-from-a-public-sector-hospital-in-india
#7
Viniyendra Pamecha, Deeplaxmi Purushottam Borle, Senthil Kumar, Kishore Gurumoorthy Subramanya Bharathy, Piyush Kumar Sinha, Shridhar Vasantrao Sasturkar, Vibuti Sharma, Chandra Kant Pandey, Shiv Kumar Sarin
BACKGROUND: Deceased donor liver transplant (DDLT) is an uncommon procedure in India. We present our experience of DDLT from a public sector teaching hospital. METHODS: A retrospective analysis of all DDLT was performed from April 2012 till September 2016. Demographics, intraoperative, donor factors, morbidity, and outcome were analyzed. RESULTS: During the study period, 305 liver transplants were performed, of which 36 were DDLT (adult 32, pediatric 4; 35 grafts; 1 split)...
November 29, 2017: Indian Journal of Gastroenterology: Official Journal of the Indian Society of Gastroenterology
https://www.readbyqxmd.com/read/29132522/nonalcoholic-fatty-liver-disease
#8
REVIEW
Patrick H Sweet, Teresa Khoo, Steven Nguyen
Nonalcoholic fatty liver disease (NAFLD) defines a condition of hepatic steatosis with or without hepatic injury. NAFLD is increasing in prevalence worldwide and presents a public health burden. Most patients are asymptomatic, although some present with fatigue and right upper quadrant pain. NAFLD is discovered incidentally when patients have elevated liver enzymes or fatty liver is seen on imaging modalities. Imaging studies can confirm fatty deposits in the liver, but needle biopsy is needed to determine degree of inflammation...
December 2017: Primary Care
https://www.readbyqxmd.com/read/29128058/nonalcoholic-fatty-liver-disease-nonalcoholic-steatohepatitis-in-liver-transplantation
#9
REVIEW
Danielle Carter, Douglas T Dieterich, Charissa Chang
The number of transplants caused by nonalcoholic fatty liver disease/nonalcoholic steatohepatitis (NASH) has been progressively increasing and this is expected to become the most common indication for liver transplant in the United States. Patients with NASH show many features of the metabolic syndrome and, as a result, are at higher risk for postoperative cardiovascular morbidity and mortality. Despite this, patients with NASH have long-term graft and patient survival rates comparable with other causes of chronic liver disease...
February 2018: Clinics in Liver Disease
https://www.readbyqxmd.com/read/29127685/the-first-case-of-ischemia-free-organ-transplantation-in-humans-a-proof-of-concept
#10
Xiaoshun He, Zhiyong Guo, Qiang Zhao, Weiqiang Ju, Dongping Wang, Linwei Wu, Lu Yang, Fei Ji, Yunhua Tang, Zhiheng Zhang, Shanzhou Huang, Linhe Wang, Zebin Zhu, Kunpeng Liu, Yanling Zhu, Yifang Gao, Wei Xiong, Ming Han, Bing Liao, Maogen Chen, Yi Ma, Xiaofeng Zhu, Wenqi Huang, Changjie Cai, Xiangdong Guan, Xian Chang Li, Jiefu Huang
Ischemia and reperfusion injury (IRI) is an inevitable event in conventional organ transplant procedure and is associated with significant mortality and morbidity post-transplantation. We hypothesize that IRI is avoidable if the blood supply for the organ is not stopped, thus resulting in optimal transplant outcomes. Here we described the first case of a novel procedure called ischemia-free organ transplantation (IFOT) for patients with end-stage liver disease. The liver graft with severe macrovesicular steatosis was donated from a 25-year-old man...
November 10, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/29121675/astaxanthin-prevents-ischemia-reperfusion-injury-of-the-steatotic-liver-in-mice
#11
Shaowei Li, Terumi Takahara, Masayuki Fujino, Yasuyuki Fukuhara, Toshiro Sugiyama, Xiao-Kang Li, Shiro Takahara
Steatosis has a low tolerance against ischemia-reperfusion injury (IRI). To prevent IRI in the steatotic liver, we attempted to elucidate the protective effect of astaxanthin (ASTX) in the steatotic liver model by giving mice a methionine and choline-deficient high fat (MCDHF) diet. Levels of lipid peroxidation and apoptosis, the expression of inflammatory cytokines and heme oxygenase (HO)-1, in the liver were assessed. Reactive oxygen species (ROS), inflammatory cytokines, apoptosis-related proteins and members of the signaling pathway were also examined in isolated Kupffer cells and/or hepatocytes from the steatotic liver...
2017: PloS One
https://www.readbyqxmd.com/read/29096719/subunit-composition-of-respiratory-chain-complex-1-and-its-responses-to-oxygen-in-mitochondria-from-human-donor-livers
#12
S E Khorsandi, J W Taanman, N Heaton
OBJECTIVE: Donor liver function in transplantation is defined by mitochondrial function and the ability of mitochondria to recover from the sequence of warm and/or cold ischemia. Mitochondrial resilience maybe related to assembly and- subunit composition of Complex 1. The aim of this study was to determine if Complex 1 subunit composition was different in donor livers of varying quality and whether oxygen exposure had any effect. RESULTS: Five human livers not suitable for transplant were split...
November 2, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/29083037/review-article-the-gut-microbiome-as-a-therapeutic-target-in-the-pathogenesis-and-treatment-of-chronic-liver-disease
#13
REVIEW
C A Woodhouse, V C Patel, A Singanayagam, D L Shawcross
BACKGROUND: Mortality from chronic liver disease is rising exponentially. The liver is intimately linked to the gut via the portal vein, and exposure to gut microbiota and their metabolites translocating across the gut lumen may impact upon both the healthy and diseased liver. Modulation of gut microbiota could prove to be a potential therapeutic target. AIM: To characterise the changes in the gut microbiome that occur in chronic liver disease and to assess the impact of manipulation of the microbiome on the liver...
October 30, 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28988570/alcoholic-liver-disease-pathogenesis-and-current-management
#14
Natalia A Osna, Terrence M Donohue, Kusum K Kharbanda
Excessive alcohol consumption is a global healthcare problem. The liver sustains the greatest degree of tissue injury by heavy drinking because it is the primary site of ethanol metabolism. Chronic and excessive alcohol consumption produces a wide spectrum of hepatic lesions, the most characteristic of which are steatosis, hepatitis, and fibrosis/cirrhosis. Steatosis is the earliest response to heavy drinking and is characterized by the deposition of fat in hepatocytes. Steatosis can progress to steatohepatitis, which is a more severe, inflammatory type of liver injury...
2017: Alcohol Research: Current Reviews
https://www.readbyqxmd.com/read/28987256/liver-disease-in-patients-on-total-parenteral-nutrition
#15
REVIEW
Arnab Mitra, Joseph Ahn
Parenteral nutrition-associated liver disease (PNALD) spectrum ranges from liver enzyme abnormalities to steatosis to fibrosis, and, eventually, cirrhosis from total parenteral nutrition (TPN). The pathophysiology is postulated to be multifactorial. Diagnosis in adults is primarily by exclusion, eliminating other causes of chronic liver disease or cirrhosis, and other factors seen in critically ill or postoperative patients on TPN. Principal treatment is avoiding TPN. If this is not feasible, research supports fish oil-based lipid emulsions in TPN formulations to reduce risk and progression of PNALD...
November 2017: Clinics in Liver Disease
https://www.readbyqxmd.com/read/28983074/use-of-hepatitis-c-positive-deceased-liver-donors-in-response-to-the-organ-shortage-in-an-endemic-area
#16
Duilio Pagano, Aurelio Seidida, Alessandro Tropea, Giada Pietrosi, Fabrizio di Francesco, Giovanni Battista Vizzini, Angelo Luca, Salvatore Gruttadauria
The region of Sicily, Italy, is witnessing a chronic organ shortage. Thus, to face this critical issue, the use of marginal donors has increased over time. An example of marginal donor expansion is the use of liver donors who are positive for the hepatitis C antibody (HCV+) for HCV+ patients requiring liver transplantation (LT). In view of new advances in HCV therapy, including direct-acting agents (DAAs) to treat HCV in the post-transplant setting, our study focused on a monocentric experience in a series of consecutive LTs performed in adult patients receiving HCV+ liver donor allografts...
October 6, 2017: Annals of Transplantation: Quarterly of the Polish Transplantation Society
https://www.readbyqxmd.com/read/28970141/primary-sclerosing-cholangitis-is-protective-against-non-alcoholic-fatty-liver-disease-in-inflammatory-bowel-disease
#17
Dustin E Bosch, Matthew M Yeh
Non-alcoholic fatty liver disease (NAFLD) occurs with higher prevalence in patients with inflammatory bowel disease (IBD) relative to the general population, and susceptibility is related to the metabolic syndrome, as well as higher prevalence of bowel resection and gut microbiotal factors. Liver complications, including NAFLD and primary sclerosing cholangitis (PSC) contribute to treatment and prognosis of patients with IBD. However, the potential interplay of NAFLD and PSC is not well understood. We retrospectively assessed severity of steatosis and steatohepatitis in liver specimens from 49 patients with IBD only, 44 with IBD and co-morbid PSC, and 30 with IBD and PSC after liver transplantation...
September 29, 2017: Human Pathology
https://www.readbyqxmd.com/read/28965313/significant-liver-related-morbidity-after-bariatric-surgery-and-its-reversal-a-case-series
#18
Magdalena Eilenberg, Felix B Langer, Andrea Beer, Michael Trauner, Gerhard Prager, Katharina Staufer
BACKGROUND: Nonalcoholic fatty liver disease (NAFLD) occurs in up to 80% of patients with obesity. Current data suggest an improvement of NAFLD after established bariatric procedures. OBJECTIVES: This study investigated liver function impairment after Roux-en-Y gastric bypass (RYGB) and one-anastomosis gastric bypass (OAGB). SETTING: University Hospital, Bariatric Surgery Unit METHODS: In this single-center case series, consecutive in- and outpatients after bariatric surgery who presented with severe liver dysfunction from March 2014 to February 2017 were included and followed until March 2017...
September 30, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28935200/benefit-risk-of-intraoperative-liver-biopsy-during-bariatric-surgery-review-and-perspectives
#19
REVIEW
Sandrine Barbois, Catherine Arvieux, Vincent Leroy, Fabian Reche, Nathalie Stürm, Anne-Laure Borel
Nonalcoholic fatty liver disease (NAFLD) is a metabolic complication of obesity that encompasses a spectrum of conditions, including hepatic steatosis, nonalcoholic steatohepatitis (NASH), cirrhosis, and end-stage liver disease. Screening for NAFLD is important to limit progression, allow early detection of carcinoma, and follow the need for liver transplantation. Although noninvasive markers exist, hepatic histologic evaluation remains the gold standard for diagnosis. To reduce the risk of complications after liver biopsy but increase the accuracy of NAFLD diagnosis, hepatic tissue can be sampled during bariatric surgery...
October 2017: Surgery for Obesity and related Diseases: Official Journal of the American Society for Bariatric Surgery
https://www.readbyqxmd.com/read/28902579/effect-of-liver-histopathology-on-islet-cell-engraftment-in-the-model-mimicking-autologous-islet-cell-transplantation
#20
Chirag S Desai, Khalid M Khan, Xiaobo Ma, Henghong Li, Juan Wang, Lijuan Fan, Guoling Chen, Jill P Smith, Wanxing Cui
BACKGROUND: The inflammatory milieu in the liver as determined by histopathology is different in individual patients undergoing autologous islet cell transplantation. We hypothesized that inflammation related to fatty-liver adversely impacts islet survival. To test this hypothesis, we used a mouse model of fatty-liver to determine the outcome of syngeneic islet transplantation after chemical pancreatectomy. METHODS: Mice (C57BL/6) were fed a high-fat-diet from 6 weeks of age until attaining a weight of ≥28 grams (6-8 weeks) to produce a fatty liver (histologically > 30% fat);steatosis was confirmed with lipidomic profile of liver tissue...
September 13, 2017: Islets
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