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ischemia reperfusion injury liver

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https://www.readbyqxmd.com/read/29782474/lipid-metabolites-the-alarm-signal-to-trigger-liver-ischemia-reperfusion-injury
#1
Bibo Ke, Jerzy W Kupiec-Weglinski
No abstract text is available yet for this article.
June 2018: Transplantation
https://www.readbyqxmd.com/read/29777940/curcumin-attenuates-cerebral-ischemia-injury-in-sprague-dawley-rats-and-pc12-cells-by-suppressing-overactivated-autophagy
#2
Yan Zhang, Ming Fang, Yameng Sun, Ting Zhang, Nan Shi, Jinfeng Li, Lei Jin, Kangyong Liu, Jianliang Fu
The present study assessed whether the protective effects of curcumin against cerebral ischemia injury were due to the suppression of overactivated autophagy. Curcumin is a well-known natural polyphenolic compound that effectively counteracts oxidation, inflammation, and various types of cancer. Several studies have demonstrated the protective effects of curcumin against ischemia-reperfusion injury in tissues from the lungs, cardiomyocytes, and liver. The present study employed brain injury models induced by middle cerebral artery occlusion (MCAO) in rats and PC12 oxygen-glucose-deprived (OGD) cells...
May 7, 2018: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/29775224/circular-rnas-are-differentially-expressed-in-liver-ischemia-reperfusion-injury-model
#3
Zhiqiang Ye, Qinglei Kong, Jianhua Han, Jingyi Deng, Miaolue Wu, Hong Deng
Liver ischemia/reperfusion (I/R) injury has high mortality due to the intense inflammatory process occurs in the liver. However, the pathological mechanism underlying I/R injury is still not clear. Recent works showed that circular RNAs play critical roles in many human diseases. In this study, the occurrence of liver I/R injury was validated by an analysis of the blood samples and hematoxylin-eosin (HE) staining of liver tissues. Total RNA was purified and followed by RNA-seq in the purpose of screening the circRNAs in significant differentially expression, which were validated by quantitative PCR...
May 18, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29774638/loss-of-sirtuin-1-and-mitofusin-2-contributes-to-enhanced-ischemia-reperfusion-injury-in-aged-livers
#4
Sung Kook Chun, Sooyeon Lee, Joseph Flores-Toro, Rebecca Y U, Ming-Jim Yang, Kristina L Go, Thomas G Biel, Catherine E Miney, Schiley Pierre Louis, Brian K Law, Mary E Law, Elizabeth M Thomas, Kevin E Behrns, Christiaan Leeuwenburgh, Jae-Sung Kim
Ischemia/reperfusion (I/R) injury is a causative factor contributing to morbidity and mortality during liver resection and transplantation. Livers from elderly patients have a poorer recovery from these surgeries, indicating reduced reparative capacity with aging. Mechanisms underlying this age-mediated hypersensitivity to I/R injury remain poorly understood. Here, we investigated how sirtuin 1 (SIRT1) and mitofusin 2 (MFN2) are affected by I/R in aged livers. Young (3 months) and old (23-26 months) male C57/BL6 mice were subjected to hepatic I/R in vivo...
May 17, 2018: Aging Cell
https://www.readbyqxmd.com/read/29769640/hypoxia-induced-microrna-191-contributes-to-hepatic-ischemia-reperfusion-injury-through-the-zonab-cyclin-d1-axis
#5
Wenming Pan, Lin Wang, Xiao-Fei Zhang, Hongji Zhang, Jinxiang Zhang, Guoliang Wang, Peng Xu, Yunwei Zhang, Ping Hu, Xiao-Dong Zhang, Run-Lei Du, Hui Wang
Hepatic ischemia/reperfusion injury (IRI) is a common cause of morbidity and mortality in liver transplantation settings and involves severe cell death and inflammatory responses. MicroRNA-191 has recently been reported to be abnormally expressed in hepatocellular carcinoma and other liver diseases in the regulation of important cellular processes. However, little is known about its function and molecular mechanism in IRI. Here, we demonstrate that miR-191 is significantly upregulated in a cultured cell line during hypoxia/reperfusion (H/R) and in liver tissue during IRI in mice...
May 16, 2018: Cell Death and Differentiation
https://www.readbyqxmd.com/read/29768493/remote-ischemic-preconditioning-stat3-dependently-ameliorates-pulmonary-ischemia-reperfusion-injury
#6
Nanfu Luo, Jin Liu, Yan Chen, Huan Li, Zhaoyang Hu, Geoffrey W Abbott
The lungs are highly susceptible to injury, including ischemia/reperfusion (I/R) injury. Pulmonary I/R injury can occur when correcting conditions such as primary pulmonary hypertension, and is also relatively common after lung transplantation or other cardiothoracic surgery. Methods to reduce pulmonary I/R injury are urgently needed to improve outcomes following procedures such as lung transplantation. Remote liver ischemic preconditioning (RLIPC) is an effective cardioprotective measure, reducing damage caused by subsequent cardiac I/R injury, but little is known about its potential role in pulmonary protection...
2018: PloS One
https://www.readbyqxmd.com/read/29767698/mechanisms-by-which-dietary-fatty-acids-regulate-mitochondrial-structure-function-in-health-and-disease
#7
E Madison Sullivan, Edward Ross Pennington, William D Green, Melinda A Beck, David A Brown, Saame Raza Shaikh
Mitochondria are the energy-producing organelles within a cell. Furthermore, mitochondria have a role in maintaining cellular homeostasis and proper calcium concentrations, building critical components of hormones and other signaling molecules, and controlling apoptosis. Structurally, mitochondria are unique because they have 2 membranes that allow for compartmentalization. The composition and molecular organization of these membranes are crucial to the maintenance and function of mitochondria. In this review, we first present a general overview of mitochondrial membrane biochemistry and biophysics followed by the role of different dietary saturated and unsaturated fatty acids in modulating mitochondrial membrane structure-function...
May 1, 2018: Advances in Nutrition
https://www.readbyqxmd.com/read/29755641/ischemic-preconditioning-attenuates-acute-lung-injury-after-partial-liver-transplantation
#8
Qinlong Liu, Hasibur Rehman, Yasodha Krishnasamy, John J Lemasters, Zhi Zhong
Pulmonary complications frequently occur after liver transplantation and are often life-threatening. Thus, we investigated whether hepatic ischemic preconditioning (IP) attenuates acute lung injury (ALI) after small-for-size liver transplantation. Rat livers were explanted after 9-min ischemia plus 5-min reperfusion, reduced to 50% of original size ex vivo , and implanted into recipients with approximately twice the donor body weight, resulting in quarter-size liver grafts (QSG). After QSG transplantation, hepatic Toll-like receptor 4 (TLR4) and tumor necrosis factor-α (TNFα ) expression increased markedly and high mobility group box-1 (HMGB1), an endogenous damage-associated molecular pattern molecule (DAMP), was released from QSG into the blood...
2018: International Journal of Physiology, Pathophysiology and Pharmacology
https://www.readbyqxmd.com/read/29742804/monocyte-chemoattractant-protein-induced-protein-1-targets-hypoxia-inducible-factor-1%C3%AE-to-protect-against-hepatic-ischemia-reperfusion-injury
#9
Peng Sun, Yue-Xin Lu, Daqing Cheng, Kuo Zhang, Jilin Zheng, Yupeng Liu, Xiaozhan Wang, Yu-Feng Yuan, Yi-Da Tang
Sterile inflammation is an essential factor causing hepatic ischemia/reperfusion (I/R) injury. As a critical regulator of inflammation, the role of monocyte chemoattractant protein-induced protein 1 (MCPIP1) in hepatic I/R injury remains undetermined. In this study, we discovered that MCPIP1 downregulation was associated with hepatic I/R injury in liver transplant patients and a mouse model. Hepatocyte-specific Mcpip1 gene knockout (HKO) and transgenic (HTG) mice demonstrated that MCPIP1 functions to ameliorate liver damage, reduce inflammation, prevent cell death, and promote regeneration...
May 9, 2018: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/29735782/an-overview-of-liver-transplant-pathology-data-from-a-tertiary-referral-centre-in-western-india
#10
Fiona Fonseca, Bijal Kulkarni, Meenal Hastak, Vinay Kumaran, Vibha Varma, Sorabh Kapoor
INTRODUCTION AND AIM: 1. Study of liver explants - Etiologic types of end-stage chronic liver disease (ESCLD) and acute liver failure (ALF) in adults and children. 2. Assessment of donor steatosis and incidental granulomas. 3. Post-transplant liver biopsies. MATERIAL AND METHODS: Specimens of 180 explant hepatectomies, 173 donor wedge and 30 core liver biopsies, and 58 post transplant liver biopsies received in our department from April 2013 to March 2017. RESULTS: 1...
April 9, 2018: Annals of Hepatology
https://www.readbyqxmd.com/read/29734133/down-regulation-of-ifit3-protects-liver-from-ischemia-reperfusion-injury
#11
Ge Guan, Yuntai Shen, Qianqian Yu, Huan Liu, Bin Zhang, Yuan Guo, Xiaodan Zhu, Zhiqiang Li, Wei Rao, Likun Zhuang, Yunjin Zang
Hepatic ischemia-reperfusion injury (IRI) could result in severe liver damage and dysfunction during liver surgery and transplantation. As one of the Interferon (IFN)-stimulated genes, IFIT3 exerted antitumor activity but its roles in hepatic IRI are still unknown. In this study, roles of IFIT3 in hepatic IRI were investigated using a mouse hepatic IRI model and a cellular hypoxia-reoxygenation model. Firstly, our results showed that IFIT3 was up-regulated in reperfused liver tissues of patients undergoing liver transplantation and was positively correlated with serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST)...
May 4, 2018: International Immunopharmacology
https://www.readbyqxmd.com/read/29733995/comparison-of-hepatoprotective-effect-from-ischemia-reperfusion-injury-of-remote-ischemic-preconditioning-of-the-liver-vs-local-ischemic-preconditioning-of-the-liver-during-human-liver-resections
#12
Mislav Rakić, Leonardo Patrlj, Fedor Amić, Gorana Aralica, Ivica Grgurević
AIM: To compare and evaluate the hepatoprotective effect of remote ischemic preconditioning (RIPC) with local ischemic preconditioning (LIPC) of the liver during human liver resections. METHODS: A prospective, single-centre, randomised control trial was conducted in the Clinical Hospital "***" from April 2017 to January 2018. A total of 60 patients, who underwent liver resection due to colorectal cancer liver metastasis, were randomised to one of three study arms: 1)a RIPC group, 2) an LIPC group and 3) a control group (CG) in which no ischemic preconditioning was done before liver resection...
May 4, 2018: International Journal of Surgery
https://www.readbyqxmd.com/read/29733120/thymoquinone-protects-rat-liver-after-partial-hepatectomy-under-ischemia-reperfusion-through-oxidative-stress-and-endoplasmic-reticulum-stress-prevention
#13
Ahlem Bouhlel, Mohamed Bejaoui, Ismail Ben Mosbah, Najet Hadj Abdallah, Catherine Ribault, Roselyne Viel, Hassen Hentati, Anne Corlu, Hassen Ben Abdennebi
Ischemia reperfusion (I/R) is associated with liver injury and impaired regeneration during partial hepatectomy (PH). The aim of this study was to investigate the effect of thymoquinone (TQ), the active compound of essential oil obtained from Nigella sativa seeds, on rat liver after PH. Male Wistar rats were equally divided into four groups (n=6) receiving an oral administration of either vehicle solution (Sham and PH groups) or TQ at 30 mg/kg (TQ and TQ+PH groups) for ten consecutive days. Then, rats underwent PH (70%) with 60 min of ischemia followed by 24h of reperfusion (PH and TQ+PH groups)...
May 7, 2018: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/29729104/the-impact-of-diet-induced-hepatic-steatosis-in-a-murine-model-of-hepatic-ischemia-reperfusion-injury
#14
Kim H H Liss, Kyle S McCommis, Kari T Chambers, Terri A Pietka, George G Schweitzer, Sara L Park, ILKe Nalbantoglu, Carla J Weinheimer, Angela M Hall, Brian N Finck
The prevalence of obesity-associated nonalcoholic fatty liver disease has significantly increased over the past decade and end stage liver disease secondary to nonalcoholic steatohepatitis has become one of the most common indications for liver transplantation. This both increases the demand for organs and decreases the availability of donor livers deemed suitable for transplantation. While in the past many steatotic livers were discarded due to concerns over enhanced susceptibility to ischemia reperfusion injury and organ failure, the discrepancy between supply and demand has resulted in increasing use of expanded criteria donor organs including steatotic livers...
May 5, 2018: Liver Transplantation
https://www.readbyqxmd.com/read/29717788/assessment-of-liver-ischemia-reperfusion-injury-in-mice-using-hepatic-t-2-mapping-comparison-with-histopathology
#15
Katja Hueper, Hannah Lang, Björn Hartleben, Marcel Gutberlet, Thorsten Derlin, Tobias Getzin, Rongjun Chen, Hassan Abou-Rebyeh, Frank Lehner, Martin Meier, Hermann Haller, Frank Wacker, Song Rong, Faikah Gueler
BACKGROUND: Liver ischemia reperfusion injury (IRI) occurs during liver surgery or transplantation resulting in an inflammatory response, tissue damage, and functional impairment of the organ. PURPOSE: To assess the feasibility of T2 mapping for noninvasive quantification of liver edema after partial liver IRI in mice. STUDY TYPE: Prospective, experimental study. ANIMAL MODEL: Partial liver IRI was induced in C57BL/6-mice by transient clamping of the left lateral and median liver lobes for 35 (n = 8), 45 (n = 6), 60 (n = 17), or 90 minutes (n = 5)...
May 2, 2018: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29710463/a-comprehensive-review-on-regulatory-effects-of-crocin-on-ischemia-reperfusion-injury-in-multiple-organs
#16
REVIEW
Ghaidafeh Akbari, Seyyed Ali Mard, Ali Veisi
Ischemia-reperfusion (I/R) injury affects o2 -dependent organs including liver, kidneys, heart, brain, and intestine. I/R injury is described as the cellular injury in an organ caused by ischemia and then further aggravated during the reperfusion due to intracellular alterations. It is a process that happens in clinical settings such as organ transplantation, reperfusion after thrombolytic therapy, and coronary angioplasty. Crocus sativus L. known as saffron used in folk medicine for its beneficial effects...
March 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29709475/tnip1-alleviates-hepatic-ischemia-reperfusion-injury-via-the-tlr2-myd88-pathway
#17
Yong Zhang, Xiaoming Lei, Wei Li, Xiaoying Ding, Jie Bai, Jin Wang, Gang Wu
Hepatic ischemia/reperfusion (I/R) injury induces oxidative stress, hepatocyte apoptosis, and release of inflammatory cytokines, which together causes liver damage and even organ dysfunction. TNF-α-induced protein 3-interacting protein 1 (TNIP1) reportedly decreases expression of genes associated with stress response and inflammation. Thus, we investigated the effects of TNIP1 on hepatic cells injury caused by hypoxia/reoxygenation (H/R). Reduced expression of TNIP1 was determined in I/R mice compared to normal mice...
April 27, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29701719/novel-targets-for-treating-ischemia-reperfusion-injury-in-the-liver
#18
REVIEW
Weili Yang, Ji Chen, Yuhong Meng, Zhenzhen Chen, Jichun Yang
Liver ischemia-reperfusion injury (IRI) is a major complication of hemorrhagic shock, liver transplantation, and other liver surgeries. It is one of the leading causes for post-surgery hepatic dysfunction, always leading to morbidity and mortality. Several strategies, such as low-temperature reperfusion and ischemic preconditioning, are useful for ameliorating liver IRI in animal models. However, these methods are difficult to perform in clinical surgeries. It has been reported that the activation of peroxisome proliferator activated receptor gamma (PPARγ) protects the liver against IRI, but with unidentified direct target gene(s) and unclear mechanism(s)...
April 26, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29689376/il-17-deficiency-attenuates-acetaminophen-induced-hepatotoxicity-in-mice
#19
Hung-Chen Lee, Chia-Chih Liao, Yuan-Ji Day, Jiin-Tarng Liou, Allen H Li, Fu-Chao Liu
Acetaminophen (APAP) overdose results in the production of reactive oxygen species (ROS), hepatocyte necrosis, and cell death, and leads to acute liver failure. Interleukin-17 (IL-17), a pro-inflammatory cytokine, plays a key role in the recruitment of neutrophils into sites of inflammation and subsequent damage after liver ischemia-reperfusion injury. In this study, we employed IL-17 knockout (KO) mice to investigate the role of IL-17 in APAP-induced hepatotoxicity. IL-17 wide type (WT) and IL-17 KO mice received an intraperitoneal injection of APAP (300 mg/kg)...
April 21, 2018: Toxicology Letters
https://www.readbyqxmd.com/read/29684255/molecular-profiling-of-post-reperfusion-milieu-determines-acute-kidney-injury-after-liver-transplantation-a-prospective-study
#20
Carlo Pulitano, Phong Ho, Deborah Verran, Charbel Sandroussi, David Joseph, David G Bowen, Geoffrey W McCaughan, Michael Crawford, Nicholas Shackel
Acute kidney injury (AKI) after liver transplantation (LT) is a common event, but its pathogenesis remains unclear. The aim of this prospective study is to investigate the potential relationship between post-reperfusion gene expression, serum mediators, and the onset of AKI after LT. Sixty-five consecutive patients undergoing LT were included in the study. Reverse transcription polymerase chain reaction (RT- PCR), was performed on liver biopsies. Gene expression of 23 genes involved in ischemia reperfusion injury (IRI) was evaluated...
April 23, 2018: Liver Transplantation
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