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https://www.readbyqxmd.com/read/28624109/the-use-of-old-donors-in-liver-transplantation
#1
REVIEW
Bobby V M Dasari, Andrea Schlegel, Hynek Mergental, M Thamara P R Perera
The process of ageing has an impact on the entire human body including the organ systems. In transplantation, professionals are daily faced with risk assessment of suitable donor offers , whether to accept a liver graft for a specific recipient. In this context, livers from elderly donors are more frequently accepted for transplantation, to increase the donor pool and compensate the high waiting list mortality. In the current practice it is not unusual to accept 60-year old donor livers for transplantation, as the donor demographics have significantly changed over the years...
April 2017: Best Practice & Research. Clinical Gastroenterology
https://www.readbyqxmd.com/read/28574625/patatin-like-phospholipase-domain-containing-3-gene-as-a-liver-steatosis-risk-factor-following-living-donor-liver-transplantation-for-hepatitis-c
#2
Hisamitsu Miyaaki, Satoshi Miuma, Naota Taura, Hidetaka Shibata, Akihiko Soyama, Masaaki Hidaka, Mitsuhisa Takatsuki, Susumu Eguchi, Kazuhiko Nakao
Liver steatosis frequently occurs following liver transplantation (LT) and can affect patient outcome. Here, we aimed to clarify the steatosis and steatohepatitis risk factors that apply after living-donor LT for chronic hepatitis C.We retrospectively examined 43 transplant recipients and donors, and tested for single-nucleotide polymorphisms in the patatin-like phospholipase domain-containing 3 gene (PNPLA3). Liver biopsies taken 1 year after transplantation and yearly thereafter, or when abnormal liver enzyme levels were detected, were examined by histopathology...
June 2, 2017: Hepatology Research: the Official Journal of the Japan Society of Hepatology
https://www.readbyqxmd.com/read/28573420/identifying-independent-risk-factors-for-graft-loss-after-primary-liver-transplantation
#3
Jill Gwiasda, Harald Schrem, Jürgen Klempnauer, Alexander Kaltenborn
PURPOSE: The aim of the study is the identification of independent risk factors for re-transplantation after primary liver transplantation beyond the occurrence of hepatic artery thrombosis. METHODS: Eight hundred thirty-four adult patients undergoing primary liver transplantation were analyzed. A propensity score was developed using multivariable binary logistic regression with hepatic artery thrombosis as the dependent variable. The logit link function of the propensity score was included into multivariable Cox regression analysis for graft survival to adjust the study population...
June 1, 2017: Langenbeck's Archives of Surgery
https://www.readbyqxmd.com/read/28552552/b-13-progenitor-derived-hepatocytes-b-13-h-cells-model-lipid-dysregulation-in-response-to-drugs-and-chemicals
#4
Alistair C Leitch, Philip M E Probert, James A Shayman, Stephanie K Meyer, George E N Kass, Matthew C Wright
Lipid dysregulation is a common hepatic adverse outcome after exposure to toxic drugs and chemicals. A donor-free rat hepatocyte-like (B-13/H) cell was therefore examined as an in vitro model for investigating mechanisms. The B-13/H cell irreversibly accumulated triglycerides (steatosis) in a time- and dose-dependent manner when exposed to fatty acids, an effect that was potentiated by the combined addition of hyperglycaemic levels of glucose and insulin. B-13/H cells also expressed the LXR nuclear receptors and exposure to their activators - T0901317 or GW3965 - induced luciferase expression from a transfected LXR-regulated reporter gene construct and steatosis in a dose-dependent manner with T0901317...
May 25, 2017: Toxicology
https://www.readbyqxmd.com/read/28528267/using-mri-to-non-invasively-and-accurately-quantify-preoperative-hepatic-steatosis
#5
Callisia N Clarke, Haesun Choi, Ping Hou, Catherine H Davis, Jingfei Ma, Asif Rashid, Jean-Nicolas Vauthey, Thomas A Aloia
BACKGROUND: The obesity epidemic has significantly increased the incidence and severity of hepatic steatosis in liver surgery patients and liver donors, potentially impacting postoperative liver regeneration and function. Development of a non-invasive means to quantify hepatic steatosis would facilitate selection of candidates for liver resection and transplant donation. METHODS: An IRB-approved protocol prospectively enrolled 28 patients with liver tumors requiring hepatic resection...
May 17, 2017: HPB: the Official Journal of the International Hepato Pancreato Biliary Association
https://www.readbyqxmd.com/read/28517493/accuracy-of-computed-tomography-for-detecting-hepatic-steatosis-in-donors-for-liver-transplantation-a-meta-analysis
#6
Danping Zheng, Wenshuo Tian, Zhouying Zheng, Jincui Gu, Zhiyong Guo, Xiaoshun He
BACKGROUND: The accuracy of computed tomography (CT) for detecting donor hepatic steatosis (HS) before liver transplantation is not well established. METHODS: A meta-analysis was performed to determine the accuracy of CT for HS detection in liver donor candidates. Pooled sensitivity, specificity, positive and negative likelihood ratios, hierarchical summary receiver operating characteristic (HSROC) curves, and the area under the curve (AUC) were estimated using HSROC and bivariate random-effects models...
May 18, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28436075/does-a-meso-caval-shunt-have-positive-effects-in-a-pig-large-for-size-liver-transplantation-model
#7
Ana Cristina Aoun Tannuri, Daniel de Albuquerque Rangel Moreira, Alessandro Belon, Maria Cecília Mendonça Coelho, Josiane Oliveira Gonçalves, Suellen Serafini, Uenis Tannuri
In pediatric liver transplantations with LFS grafts, higher incidences of graft dysfunction probably occur due to IRI. It was postulated that increasing the blood supply to the graft by means of a meso-caval shunt could ameliorate the IRI. Eleven pigs underwent liver transplantation and were divided into two groups: LFS and LFS+SHUNT group. A series of flowmetric, metabolic, histologic, and molecular studies were performed. No significant metabolic differences were observed between the groups. One hour after reperfusion, portal flow was significantly lower in the recipients than in the donors, proving that the graft was maintained in low portal blood flow, although the shunt could promote a transient increase in the portal blood flow and a decrease in the arterial flow...
April 24, 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/28422425/negativization-of-viremia-prior-to-liver-transplant-reduces-early-allograft-dysfunction-in-hepatitis-c-positive-recipients
#8
Silvia Martini, Francesco Tandoi, Lodovico Terzi di Bergamo, Silvia Strona, Bruna Lavezzo, Marco Sacco, Francesca Maione, Federica Gonella, Paolo Strignano, Dominic Dell Olio, Mauro Salizzoni, Giorgio Maria Saracco, Renato Romagnoli
Although early allograft dysfunction (EAD) negatively impacts survival from the first months following liver transplantation (LT), direct-acting antiviral agents (DAAs) have revolutionized hepatitis C virus (HCV) therapy. We investigated the EAD definition best predicting 90-day graft loss and identified EAD risk factors in HCV-positive recipients. From November 2002 to June 2016, 603 HCV-positive patients (hepatocellular carcinoma, 53.4%) underwent a first LT with HCV-negative donors. The median recipient Model for End-Stage Liver Disease (MELD) score was 15, and the median donor age was 63 years...
July 2017: Liver Transplantation
https://www.readbyqxmd.com/read/28414112/binding-of-erucic-acid-with-human-serum-albumin-using-a-spectroscopic-and-molecular-docking-study
#9
Gulam Rabbani, Mohammad Hassan Baig, Arif Tasleem Jan, Eun Ju Lee, Mohsin Vahid Khan, Masihuz Zaman, Abd-ElAziem Farouk Gad, Rizwan Hasan Khan, Inho Choi
Erucic acid (EA) is one of the key fatty acids usually found in canola oil, mustard oil and rapeseed oil. Consumption of EA in primates was found to cause myocardial lipidosis and cardiac steatosis. To have an insight of the effect of EA in humans, we performed in vitro interaction studies of EA with the primary plasma protein, human serum albumin (HSA). Spectroscopic (UV-vis and fluorescence) analysis of the EA-HSA interaction revealed a static mode of quenching, with binding constant Kb ∼10(4) reflecting high affinity of EA for HSA...
April 13, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28379854/clinical-usefulness-of-controlled-attenuation-parameter-to-screen-hepatic-steatosis-for-potential-donor-of-living-donor-liver-transplant
#10
Young Mi Hong, Ki Tae Yoon, Mong Cho, Chong Woo Chu, Je Ho Rhu, Kwang Ho Yang, Jun Woo Lee
OBJECTIVE: Hepatic steatosis is associated with an increased risk of graft loss. Although the controlled attenuation parameter (CAP), a process based on transient elastography, has been suggested as a noninvasive method of assessing hepatic steatosis, to date, there is no study on the usefulness of CAP as a single screening tool for detecting hepatic steatosis in potential living donor liver. We evaluated the accuracy of CAP for detecting hepatic steatosis in potential liver donors. PATIENTS AND METHODS: All potential donors of living-donor liver transplantation who underwent a CAP assessment and ultrasonography-guided liver biopsy were enrolled...
July 2017: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28364814/extended-criteria-donors-in-liver-transplantation
#11
REVIEW
Irine Vodkin, Alexander Kuo
Mortality rates on the liver transplant waiting list are increasing. The shortage of organs has resulted in higher utilization of extended criteria donors (ECDs), with centers pushing the limits of what is acceptable for transplantation. Donor quality is more appropriately represented as a continuum of risk, and careful selection and matching of ECD grafts with recipients may lead to excellent outcomes. Although there is no precise definition for what constitutes an ECD liver, this review focuses on frequently cited characteristics, including donor age, steatosis, donation after cardiac death, and donors with increased risk of disease transmission...
May 2017: Clinics in Liver Disease
https://www.readbyqxmd.com/read/28364696/differential-effects-of-liver-steatosis-on-pharmacokinetic-profile-of-two-closely-related-hepatoselective-no-donors-v-pyrro-no-and-v-proli-no
#12
Kamil Kus, Edyta Kus, Agnieszka Zakrzewska, Wojciech Jawien, Barbara Sitek, Maria Walczak, Stefan Chlopicki
PURPOSE: To analyze the effect of liver steatosis and obesity on pharmacokinetic profile of two structurally-related liver-selective NO-donors - V-PYRRO/NO and V-PROLI/NO. METHODS: C57BL/6 mice were fed control or high-fat diet for 15 weeks to induced liver steatosis and obesity (HFD mice). Pharmacokinetics and renal elimination studies were conducted in vivo following iv dosing of V-PYRRO/NO and V-PROLI/NO (0.03mmol/kg). Hepatic clearance was evaluated ex vivo in the isolated perfused mice liver and in vitro with the use of liver microsomes...
June 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28338460/role-of-computed-tomography-volumetry-in-estimating-liver-weights-in-surgical-patients-with-hepatic-steatosis
#13
Yeonjung Ha, Ju Hyun Shim, Gi-Won Song, Seon-Ok Kim, Tae-Yong Ha, Dong-Hwan Jung, Kang Mo Kim, Young-Suk Lim, Han Chu Lee, Sung-Gyu Lee
OBJECTIVES: Our objective was to assess the accuracy of computed tomography volumetry in estimating liver volume in steatotic patients. MATERIALS AND METHODS: We divided 641 liver donors (mean age 27 years, 71% male) into 4 groups according to the extent of steatosis on predonation biopsy: with < 5% comprising group 1, 5% to 9% comprising group 2, 10% to 19% comprising group 3, and ≥ 20% comprising group 4. Graft mass estimation error (%) was calculated as follows: [(computed tomography-measured volume minus graft weight)/graft weight] × 100...
April 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28333540/current-state-of-the-art-mri-for-comprehensive-evaluation-of-potential-living-liver-donors
#14
Kartik S Jhaveri, Lijun Guo, Luís Guimarães
OBJECTIVE: This review focuses on the role of state-of-the-art MRI-based techniques for comprehensive evaluation of living donors providing single-visit assessment of the liver vasculature via MR angiography, of the biliary tract via conventional T2-weighted MR cholangiography and T1-weighted gadoxetate disodium-enhanced MR cholangiography, and of hepatic steatosis via T2*-corrected multiecho chemical shift-based water-fat separation MRI and high-speed T2-corrected multiecho MR spectroscopy...
March 23, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28331449/cyclin-d1-in-the-liver-role-of-noncanonical-signaling-in-liver-steatosis-and-hormone-regulation
#15
Kelley G Núñez, Janet Gonzalez-Rosario, Paul T Thevenot, Ari J Cohen
BACKGROUND: Cyclin D1 is an important protein for cell cycle progression; however, functions independent of the cell cycle have been described in the liver. Cyclin D1 is also involved in DNA repair, is overexpressed in many cancers, and functions as a proto-oncogene. The lesser-known roles of Cyclin D1, specifically in hepatocytes, impact liver steatosis and hormone regulation in the liver. METHODS: A comprehensive search of PubMed was conducted using the keywords Cyclin D1, steatosis, lipogenesis, and liver transplantation...
2017: Ochsner Journal
https://www.readbyqxmd.com/read/28281516/-features-of-a-necrotic-and-inflammatory-process-in-different-forms-of-nonalcoholic-fatty-liver-disease
#16
I V Kurbatova, O P Dudanova
AIM: To identify the features of development of a necrotic and inflammatory process in different forms of nonalcoholic fatty liver disease (NAFLD), by comparatively analyzing a full set of clinical and laboratory parameters, including the cytokine status and the expression level of enzyme genes controlling the apoptosis of peripheral leukocytes. SUBJECTS AND METHODS: 86 patients with NAFLD, including 8 (9.3%) with hepatic steatosis (HS), 70 (81.4%) with nonalcoholic steatohepatitis (NASH), 40, 19, and 11 with mild, moderate, and high disease activity, respectively, and 8 (9...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28267886/primary-non-function-is-frequently-associated-with-fatty-liver-allografts-and-high-mortality-after-re-transplantation
#17
Ulf Kulik, Frank Lehner, Jürgen Klempnauer, Jürgen Borlak
BACKGROUND & AIMS: The shortage of liver donations demands the use of suboptimal grafts with steatosis being a frequent finding. Although ≤30% macrovesicular steatosis is considered to be safe the risk for primary non-function (PNF) and outcome after re-transplantation (re-OLT) is unknown. METHODS: Among 1205 orthotropic liver transplantations performed at our institution the frequency, survival and reason of re-OLT was evaluated. PNF (group A) cases and those with initial transplant function but subsequent need for re-OLT (group B) were analyzed...
March 7, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28260484/impact-of-a-full-time-donor-management-protocol-on-donors-liver-biopsy-findings-progress-to-date
#18
Meysam Mojtabaee, Alireza Shamsaeefar, Siavash Gholami, Mojtaba Mohsenzadeh, Farahnaz Sadegh Beigee
OBJECTIVES: This study investigated a fixed coordinator-directed donor management strategy's impact on donated liver quality, as determined by definitive biopsy results. MATERIALS AND METHODS: We collected donated liver biopsy results from donations both before and after implementing a fixed coordinator-directed donor management strategy. This strategy involved full-time attendance by a donor coordinator and continued resuscitation of brain-dead donors. All donations took place in a single organ procurement unit...
February 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28246131/the-effect-of-cortisol-in-rat-steatotic-and-non-steatoticliver-transplantation-from-brain-dead-donors
#19
Mónica Bibiana Jiménez-Castro, Elsa Negrete-Sánchez, Araní Casillas-Ramírez, Jose Gulfo, Ana I Álvarez-Mercado, Maria Eugenia Cornide-Petronio, Jordi Gracia-Sancho, Juan Rodés, Carmen Peralta
In this study, we examined the effects of cortisol on steatotic and non-steatotic liver grafts from brain-dead donors and characterized the underlying mechanisms involved. Non-steatotic liver grafts showed reduced cortisol and increased cortisone levels in association with upregulation of enzymes that inactivate cortisol. Conversely, steatotic liver grafts exhibited increased cortisol and reduced cortisone levels. The enzymes involved in cortisol generation were overexpressed, and those involved in cortisol inactivation or clearance were downregulated in steatotic liver grafts...
February 28, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28129776/administration-of-multipotent-mesenchymal-stromal-cells-restores-liver-regeneration-and-improves-liver-function-in-obese-mice-with-hepatic-steatosis-after-partial-hepatectomy
#20
Fernando Ezquer, Javiera Bahamonde, Ya-Lin Huang, Marcelo Ezquer
BACKGROUND: The liver has the remarkable capacity to regenerate in order to compensate for lost or damaged hepatic tissue. However, pre-existing pathological abnormalities, such as hepatic steatosis (HS), inhibits the endogenous regenerative process, becoming an obstacle for liver surgery and living donor transplantation. Recent evidence indicates that multipotent mesenchymal stromal cells (MSCs) administration can improve hepatic function and increase the potential for liver regeneration in patients with liver damage...
January 28, 2017: Stem Cell Research & Therapy
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