Articles tagged "Oxidant stress"

2020 American Transplant Congress
Prolonged Cold Ischemia Increases Reactive Oxygen Species Activates Autophagy by Enhancing Glycolysis in the Graft Through the mTOR Signaling Pathway in Orthotopic Lung Transplantation of Rats
H. Lin¹, S. Dai², W. Liu³, X. Lin², B. Yu², S. Chen³, S. Liu², J. Tang²
¹Thoracic Surgery, Wuhan University, Renmin Hospital, Wuhan, China, ²Thoracic Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, China, ³Department of Anesthesiology, The First Affiliated Hospital of Nanchang University, Nanchang, China
*Purpose: The aim of the present study is to investigate the mechanisms by which prolonged CI influences the autophagy in the graft lung, in which…
2020 American Transplant Congress
Hepatic Microenvironment: Molecular and Chemical Changes Associated with Preconditioning Maneuvers
I. Lies, C. Watkins, M. Em, J. D. Eason, C. Eynard, T. Rousselle, V. R. Mas, D. Maluf
Dept of Surgery, Transplant Research Institute, James D. Eason Transplant Institute, University of Tennessee Health Science Center, Memphis, TN
*Purpose: Liver preconditioning has been described to protect liver from ischemia injury and trigger liver regeneration. Hereby, we aimed to assess the effect of preconditioning…
2019 American Transplant Congress
NQO-1 Attenuates Renal Ischemia-Reperfusion Injury in Mice
D. Choi¹, J. Hwang², J. Jeong³, K. Lee¹, K. Na¹, Y. Ham¹, J. Jeon¹, H. Kim¹, Y. Chang¹
¹Nephrology, Chungnam National University, Daejeon, Korea, Republic of, ²Laboratory Animal Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea, Republic of, ³Medical Science, Chungnam National University, Daejeon, Korea, Republic of
*Purpose: Ischemia-reperfusion (I-R)-induced reactive oxygen species (ROS) are thought to be a major factor in the development of acute renal injury by promoting the initial…
2019 American Transplant Congress
Hypothermic Protection Attenuates Kidney Injury in Renal Ischemia-Reperfusion Injury via Phosphorylation of ERK
D. Choi¹, J. Jeong², K. Lee¹, K. Na¹, Y. Chang³, Y. Ham¹, J. Jeon¹, H. Kim¹
¹Nephrology, Chungnam National University, Daejeon, Korea, Republic of, ²Medical Science, Chungnam National University, Daejeon, Korea, Republic of, ³Nephrology, Catholic University of Korea, Daejeon, Korea, Republic of
*Purpose: Hypothermia attenuates the renal injury induced by ischemia-reperfusion. However, the detailed molecular pathway remains unknown. ERK and HIF1 are known to protect against ischemia-reperfusion…
2019 American Transplant Congress
Activation of Oxidative Stress-Adoptive Responses during Extended Ex Situ Heart Perfusion
S. Hatami, X. Qi, M. Buchko, C. W. White, S. Bozso, S. Himmat, J. Nagendran, D. H. Freed
Department of Surgery, University of Alberta, Edmonton, AB, Canada
*Purpose: Cardiac function declines in a time-related fashion during ex situ heart perfusion (ESHP) regardless of ventricular load status. We have previously shown that the…
2019 American Transplant Congress
Effect of Renal Function on Asymmetric Dimethylarginine (ADMA) Homeostasis in Kidney Donors and Recipients
M. Y. Said¹, R. M. Douwes¹, M. van Londen¹, I. Minović¹, A. Frenay², M. H. de Borst¹, E. van den Berg¹, M. R. Heiner-Fokkema³, A. A. Kayacelebi⁴, A. Bollenbach⁴, H. van Goor⁵, G. J. Navis¹, D. Tsikas⁴, S. J. Bakker¹
¹Internal medicine, University Medical Center Groningen, Groningen, Netherlands, ²Gynecology and Obstetrics, Amsterdam University Medical Center, Amsterdam, Netherlands, ³Laboratory Medicine, University Medical Center Groningen, Groningen, Netherlands, ⁴Inst. of Toxicology, Core Unit Proteomics, Hannover Medical School, Hannover, Germany, ⁵Pathology and Medical Biology, University Medical Center Groningen, Groningen, Netherlands
*Purpose: ADMA is a methylated form of arginine and an endogenous nitric oxide synthase inhibitor. Plasma ADMA (pADMA) is known as a strong cardiovascular risk…
2019 American Transplant Congress
Targeting Syk Signaling in Myeloid Cells Protects against Liver Fibrosis and Hepatocarcinogenesis
A. Torres-Hernandez, W. Wang, G. Miller
Surgery, NYU School of Medicine, New York, NY
*Purpose: The purpose of our study was to evaluate the mechanistic role of Spleen Tyrosine Kinase (SYK) signaling on the fibrosis - hepatocarcinogenesis axis and…
2018 American Transplant Congress
Extracellular Vesicles Derived from Huc-MSCs Alleviate Rat Hepatic Ischemia-Reperfusion Injury by Suppressing Oxidative Stress and Neutrophil Inflammatory Response
J. Yao,^1,2 J. Cai,^1,2 J. Zheng,^1,2 L. Chen,^1,2 Y. Zhang,^1,2 Y. Yang.^1,2
¹Department of Hepatic Surgery and Liver Transplantation Center of the Third Affiliated Hospital, Organ Transplantation Institute, Guangzhou, Guangdong, China; ²Guangdong Key Laboratory of Liver Disease Research, Key Laboratory of Liver Disease Biotherapy and Translational Medicine of Guangdong Higher Education Institutes, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, .
Mesenchymal stem cells (MSCs) have been reported possessing therapeutic effects on immunoregulation, tissue repair and regeneration from bench to bedside. Extracellular vesicles (EVs) derived from…
2018 American Transplant Congress
Assessment of Hepatic Ischemia-Reperfusion Injuries by NRF2-Dependent Transcriptional Activities of Bile Transporters in Rats
J. Kim,¹ A. Martin,¹ J. Yee,¹ L. Fojut,¹ A. Geurts,² K. Oshima,³ M. Zimmerman,¹ J. Hong.¹
¹Surgery, Medical College of Wisconsin, Milwaukee, WI; ²Physiology, Medical College of Wisconsin, Milwaukee, WI; ³Pathology, Johns Hopkins University School of Medicine, Baltimore, MD.
Background: The effect of hepatic ischemia and reperfusion injury (IRI) on bile transporter (BT) gene expression and the role of Nrf2 in BT regulation during…
2018 American Transplant Congress
Neuropeptide PACAP Protects Hepatocyte against Liver Ischemia/Reperfusion Injury by Promoting Yes-Associated Protein (YAP) Function
Z. Xue, Y. Liu, C. Zhang, R. Busuttil, J. Kupiec-Weglinski, H. Ji.
Dept of Surgery, The DumontUCLA Transplant Center, Los Angeles, CA.
Background: Previously we have demonstrated that neuropeptide pituitary adenylate cyclase-activating polypeptides (PACAP) suppressed local inflammation, and protected liver against IRI by innervating the liver and…