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Ischemia reperfusion kidney

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https://www.readbyqxmd.com/read/29332180/cd39-adenosinergic-axis-in-renal-pathophysiology-and-therapeutics
#1
REVIEW
Bellamkonda K Kishore, Simon C Robson, Karen M Dwyer
Extracellular ATP interacts with purinergic type 2 (P2) receptors and elicits many crucial biological functions. Extracellular ATP is sequentially hydrolyzed to ADP and AMP by the actions of defined nucleotidases, such as CD39, and AMP is converted to adenosine, largely by CD73, an ecto-5'-nucleotidase. Extracellular adenosine interacts with P1 receptors and often opposes the effects of P2 receptor activation. The balance between extracellular ATP and adenosine in the blood and extracellular fluid is regulated chiefly by the activities of CD39 and CD73, which constitute the CD39-adenosinergic axis...
January 13, 2018: Purinergic Signalling
https://www.readbyqxmd.com/read/29326493/renal-mitochondria-can-withstand-hypoxic-ischemic-injury-secondary-to-renal-failure-in-uremic-rats-pretreated-with-sodium-thiosulfate
#2
Dhivya Mohan, Eswari Dhivya Balasubramanian, Sriram Ravindran, Gino A Kurian
BACKGROUND: Sodium thiosulfate (STS) is a potent drug used to treat calcific uremic arteriopathy in dialysis patients and its mode of action is envisaged by calcium chelation and antioxidant potential. STS's action on mitochondrial dysfunction, one of the major players in the pathology of vascular calcification is yet to be explored. METHODS: Adenine (0.75%, 28 days)-treated vascular calcified rat kidney was used to isolate mitochondria, where the animal was administered with or without STS for 28 days...
July 2017: Indian Journal of Pharmacology
https://www.readbyqxmd.com/read/29326040/downregulation-of-exocyst-sec10-accelerates-kidney-tubule-cell-recovery-through-enhanced-cell-migration
#3
Mi Ra Noh, Hee-Seong Jang, Dae-Kyu Song, Seong-Ryong Lee, Joshua H Lipschutz, Kwon Moo Park, Jee In Kim
Migration of surviving kidney tubule cells after sub-lethal injury, for example ischemia/reperfusion (I/R), plays a critical role in recovery. Exocytosis is known to be involved in cell migration, and a key component in exocytosis is the highly-conserved eight-protein exocyst complex. We investigated the expression of a central exocyst complex member, Sec10, in kidneys following I/R injury, as well as the role of Sec10 in wound healing following scratch injury of cultured Madin-Darby canine kidney (MDCK) cells...
January 8, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29324683/pentoxifylline-and-methylprednisolone-additively-alleviate-kidney-failure-and-prolong-survival-of-rats-after-renal-warm-ischemia-reperfusion
#4
Grzegorz Wystrychowski, Wojciech Wystrychowski, Władysław Grzeszczak, Andrzej Więcek, Robert Król, Antoni Wystrychowski
Renal ischemia-reperfusion injury (IRI) induces local inflammation leading to kidney damage. Since pentoxifylline (PTX) and steroids have distinct immunomodulatory properties, we aimed to evaluate for the first time their combined use in IRI-induced acute kidney injury (AKI) and chronic kidney disease (CKD) in rats. In two experiments, PTX (100 mg/kg body weight subcutaneously) was administered 90 min prior to renal IRI or/and methylprednisolone (MP; 100 mg/kg body weight intramuscularly) was infused 60 min after reperfusion of a solitary kidney (AKI model: 45 min ischemia, 48 male Sprague-Dawley rats) or one kidney with excision of contralateral kidney 2 weeks later (CKD model: 90 min ischemia, 38 rats)...
January 11, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29312858/de-novo-glomerular-diseases-after-renal-transplantation-how-is-it-different-from-recurrent-glomerular-diseases
#5
REVIEW
Fedaey Abbas, Mohsen El Kossi, Jon Kim Jin, Ajay Sharma, Ahmed Halawa
The glomerular diseases after renal transplantation can occur de novo, i.e., with no relation to the native kidney disease, or more frequently occur as a recurrence of the original disease in the native kidney. There may not be any difference in clinical features and histological pattern between de novo glomerular disease and recurrence of original glomerular disease. However, structural alterations in transplanted kidney add to dilemma in diagnosis. These changes in architecture of histopathology can happen due to: (1) exposure to the immunosuppression specifically the calcineurin inhibitors (CNI); (2) in vascular and tubulointerstitial alterations as a result of antibody mediated or cell-mediated immunological onslaught; (3) post-transplant viral infections; (4) ischemia-reperfusion injury; and (5) hyperfiltration injury...
December 24, 2017: World Journal of Transplantation
https://www.readbyqxmd.com/read/29310591/uncontrolled-donation-after-circulatory-death-comparison-of-two-kidney-preservation-protocols-on-graft-outcomes
#6
Claire Delsuc, Alexandre Faure, Julien Berthiller, Didier Dorez, Xavier Matillon, Vannary Meas-Yedid, Bernard Floccard, Guillaume Marcotte, Vanessa Labeye, Maud Rabeyrin, Ricardo Codas, Cécile Chauvet, Philip Robinson, Emmanuel Morelon, Lionel Badet, William Hanf, Thomas Rimmelé
BACKGROUND: Kidney transplantation following uncontrolled donation after circulatory death (uDCD) presents a high risk of delayed graft function due to prolonged warm ischemia time. In order to minimise the effects of ischemia/reperfusion injury during warm ischemia, normothermic recirculation recently replaced in situ perfusion prior to implantation in several institutions. The aim of this study was to compare these preservation methods on kidney graft outcomes. METHODS: The primary endpoint was the one-year measured graft filtration rate (mGFR)...
January 8, 2018: BMC Nephrology
https://www.readbyqxmd.com/read/29309901/ischemia-reperfusion-associated-tubular-cells-injury-in-renal-transplantation-can-metabolomics-inform-about-mechanisms-and-help-identify-new-therapeutic-targets
#7
REVIEW
Chantal Barin-Le Guellec, Bérenger Largeau, Delphine Bon, Pierre Marquet, Thierry Hauet
Tubular cells are central targets of ischemia-reperfusion (I/R) injury in kidney transplantation. Inflammation and metabolic disturbances occurring within these cells are deleterious by themselves but also favor secondary events, such as activation of immune response. It is critical to have an in depth understanding of the mechanisms governing tubular cells response to I/R if one wants to define pertinent biomarkers or to elaborate targeted therapeutic interventions. As oxidative damage was shown to be central in the patho-physiological mechanisms, the impact of I/R on proximal tubular cells metabolism has been widely studied, contrary to its effects on expression and activity of membrane transporters of the proximal tubular cells...
January 5, 2018: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/29307339/protective-effect-of-gel-form-of-gastric-gavage-applicated-aloe-vera-on-ischemia-reperfusion-injury-in-renal-and-lung-tissue
#8
Hasan Sahin, Ali Umit Yener, Ihsan Karaboga, Muserref Hilal Sehitoglu, Tugba Dogu, Hatice Betul Altinisik, Ugur Altinisik, Tuncer Simsek
The aloe vera plant has become increasingly popular in recent years. This study aimed to research the effect of aloe vera to prevent renal and lung tissue damage in an experimental ischemia-reperfusion (I/R) injury model. The study included 21 male Wistar Albino rats, which were categorized into control group, n = 7 (no procedures), Sham group n = 7 (I/R); and aloe vera therapy group, n = 7 (aloe vera and I/R). Superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), and malondialdehyde (MDA) were evaluated from lung and kidney tissues for biochemical investigations...
December 30, 2017: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/29304478/differential-mitochondrial-dinitrosyliron-complex-formation-by-nitrite-and-nitric-oxide
#9
Douglas D Thomas, Catherine Corey, Jason Hickok, Yinna Wang, Sruti Shiva
Nitrite represents an endocrine reserve of bioavailable nitric oxide (NO) that mediates a number of physiological responses including conferral of cytoprotection after ischemia/reperfusion (I/R). It has long been known that nitrite can react with non-heme iron to form dinitrosyliron complexes (DNIC). However, it remains unclear how quickly nitrite-dependent DNIC form in vivo, whether formation kinetics differ from that of NO-dependent DNIC, and whether DNIC play a role in the cytoprotective effects of nitrite...
December 23, 2017: Redox Biology
https://www.readbyqxmd.com/read/29301417/isolated-kidney-perfusion-the-influence-of-pulsatile-flow
#10
Charlotte von Horn, Thomas Minor
Within the scope of transplantation research, ex vivo kidney perfusion has been proven an attractive model to study ischemia-reperfusion and preservation injury. Renal perfusion techniques also occupy scientists with the aim to optimize organ reconditioning and preparation prior to transplantation. This study investigated the influence of a pulsatile perfusion pattern that brings flow conditions closer to physiological situations, on renal perfusion characteristic and kidney function in the isolated perfused kidney...
January 4, 2018: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/29300330/alpha-lipoic-acid-a-therapeutic-strategy-that-tend-to-limit-the-action-of-free-radicals-in-transplantation
#11
REVIEW
Nella Ambrosi, Diego Guerrieri, Fiorella Caro, Francisco Sanchez, Geraldine Haeublein, Domingo Casadei, Claudio Incardona, Eduardo Chuluyan
Organ replacement is an option to mitigate irreversible organ damage. This procedure has achieved a considerable degree of acceptance. However, several factors significantly limit its effectiveness. Among them, the initial inflammatory graft reaction due to ischemia-reperfusion injury (IRI) has a fundamental influence on the short and long term organ function. The reactive oxygen species (ROS) produced during the IRI actively participates in these adverse events. Therapeutic strategies that tend to limit the action of free radicals could result in beneficial effects in transplantation outcome...
January 4, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29295873/potentiating-tissue-resident-type-2-innate-lymphoid-cells-by-il-33-to-prevent-renal-ischemia-reperfusion-injury
#12
Qi Cao, Yiping Wang, Zhiguo Niu, Chengshi Wang, Ruifeng Wang, Zhiqiang Zhang, Titi Chen, Xin Maggie Wang, Qing Li, Vincent W S Lee, Qingsong Huang, Jing Tan, Minghao Guo, Yuan Min Wang, Guoping Zheng, Di Yu, Stephen I Alexander, Hui Wang, David C H Harris
The IL-33-type 2 innate lymphoid cell (ILC2) axis has an important role in tissue homeostasis, inflammation, and wound healing. However, the relative importance of this innate immune pathway for immunotherapy against inflammation and tissue damage remains unclear. Here, we show that treatment with recombinant mouse IL-33 prevented renal structural and functional injury and reduced mortality in mice subjected to ischemia-reperfusion injury (IRI). Compared with control-treated IRI mice, IL-33-treated IRI mice had increased levels of IL-4 and IL-13 in serum and kidney and more ILC2, regulatory T cells (Tregs), and anti-inflammatory (M2) macrophages...
January 2, 2018: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/29291552/carvacrol-attenuates-histopathogic-and-functional-impairments-induced-by-bilateral-renal-ischemia-reperfusion-in-rats
#13
Hulya Ozturk, Ayhan Cetinkaya, Selma Erdogan Duzcu, Buket Kin Tekce, Hayrettin Ozturk
BACKGROUND: Renal ischemia/reperfusion injury is the most common cause of acute kidney injury, which frequent occurrence in critically ill patients. OBJECTIVES: The aim of this study was to investigate the role of Carvacrol (CARV) against bilateral ischemia reperfusion (I/R) in rats. METHODS: Renal I/R injury were induced by clamping of the left and right renal arteries for 45 min followed by 24 h of reperfusion. Thirty male Sprague-Dawley rats were randomly allocated to three groups (n = 10): the sham-control group, the renal I/R-untreated (I/R-untreated) group, and the I/R-CARV-treated group...
December 29, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29285782/hyperpolarized-13-c-15-n2-urea-t2-relaxation-changes-in-acute-kidney-injury
#14
Christian Østergaard Mariager, Per Mose Nielsen, Haiyun Qi, Steffen Ringgaard, Christoffer Laustsen
PURPOSE: To investigate the correlation between renal ischemia and 13 C-urea T2 relaxation rate in an acute kidney injury (AKI) rat model. METHODS: Six rats subjected to unilateral renal ischemia were investigated. Creatinine clearance, urine output, plasma creatinine as well as blood-urea nitrogen (BUN) values were acquired before and after the procedure. 1 H T2* mapping was acquired using blood oxygenation level dependent (BOLD) MRI and hyperpolarized 13 C-urea T2 mapping was acquired using a 2D golden-angle radial approach...
December 28, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29283977/divergent-effects-of-hypertonic-fluid-resuscitation-on-renal-pathophysiological-and-structural-parameters-in-rat-model-of-lower-body-ischemia-reperfusion-induced-sterile-inflammation
#15
Bulent Ergin, Coert J Zuurbier, Aysegul Kapucu, Can Ince
The pathogenesis of acute kidney injury (AKI) is characterized by the deterioration of tissue perfusion and oxygenation and enhanced inflammation. The purpose of this study was to investigate whether or not the hemodynamic and inflammatory effects of hypertonic saline (HS) protect the kidney by promoting renal microcirculatory oxygenation and possible deleterious effects of HS due to its high sodium content on renal functional and structural injury following ischemia/reperfusion. Mechanically ventilated and anesthetized rats were randomly divided into four groups (n = 6 per group): a sham-operated control group; a group subjected to renal ischemia for 45 min by supra-aortic occlusion followed by 2 h of reperfusion (I/R); and I/R group treated with a continuous i...
December 27, 2017: Shock
https://www.readbyqxmd.com/read/29280047/an-evaluation-of-the-protective-effect-of-esomeprazole-in-an-experimental-model-of-renal-ischemia-reperfusion
#16
Tayyar Alp Ozkan, Nihat Karakoyunlu, Reyhan Polat, Gülistan Sanem Sarıbaş, Nevzat Can Şener, Seyda Özdemir, Kevser Peker, Dilek Ünal, Can Tuygun
PURPOSE: The ischemia and subsequent reperfusion (IR) which occurs in partial nephrectomy used in the treatment of renal tumors causes loss of parenchyma in the damaged kidney. The aim of this study is to evaluate, both biochemically and histologically, the efficacy of esomeprazole in an ischemia-reperfusion model in rat kidneys. METHODS: The rats were randomized into three groups of seven animals each, referred to as the sham, control, and PPI groups. In the sham group, only a laparotomy was performed...
December 26, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/29275176/cxcl16-rock1-signaling-pathway-exacerbates-acute-kidney-injury-induced-by-ischemia-reperfusion
#17
Hua Liang, Meijuan Liao, Weicheng Zhao, Xueqin Zheng, Feng Xu, Hanbing Wang, Jian Huang
Renal ischemia-reperfusion injury (IRI) is a leading cause of acute kidney injury (AKI) resulting in an abrupt deterioration of kidney function. CXC chemokine ligand 16 (CXCL16) contributes significantly to the pathogenesis of renal injury. However, the signaling pathway mechanisms of CXCL16 in IRI-induced AKI remains obscured. In this study, we examined the role of the CXCL16/ Rho Associated Coiled-Coil Containing Protein Kinase-1 (ROCK1) signaling pathway in AKI induced by IRI. In vivo, CXCL16 was induced markedly after IRI...
December 20, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29274400/conditional-mitotimer-reporter-mice-for-assessment-of-mitochondrial-structure-oxidative-stress-and-mitophagy
#18
Rebecca J Wilson, Joshua C Drake, Di Cui, Mei Zhang, Heather M Perry, Jennifer A Kashatus, Christine M Kusminski, Philipp E Scherer, David F Kashatus, Mark D Okusa, Zhen Yan
Assessment of structural and functional changes of mitochondria is vital for biomedical research as mitochondria are the power plants essential for biological processes and tissue/organ functions. Others and we have developed a novel reporter gene, pMitoTimer, which codes for a redox sensitive mitochondrial targeted protein that switches from green fluorescence protein (GFP) to red fluorescent protein (DsRed) when oxidized. It has been shown in transfected cells, transgenic C. elegans and Drosophila m., as well as somatically transfected adult skeletal muscle that this reporter gene allows quantifiable assessment of mitochondrial structure, oxidative stress, and lysosomal targeting of mitochondria-containing autophagosomes...
December 20, 2017: Mitochondrion
https://www.readbyqxmd.com/read/29245971/systematic-analysis-of-the-expression-profile-of-non-coding-rnas-involved-in-ischemia-reperfusion-induced-acute-kidney-injury-in-mice-using-rna-sequencing
#19
Jun Zhou, Hongtao Chen, Youling Fan
Acute kidney injury (AKI) is a common and serious disease characterized by a rapid decline in renal function and has an unacceptably high mortality rate with no effective treatment beyond supportive care. AKI can be induced by many factors such as ischemia/reperfusion (IR), sepsis, and drug-induced nephrotoxicity. However, the molecular mechanisms of AKI are poorly understood. A non-coding RNA (ncRNA) is a RNA molecule that is not translated into a protein. NcRNAs play multiple roles in cellular processes, and mutations or imbalances of these molecules within the body can cause a variety of diseases...
November 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/29242033/the-evidence-and-rationale-for-the-perioperative-use-of-loop-diuretics-during-kidney-transplantation-a-comprehensive-review
#20
REVIEW
Shaifali Sandal, Pannya Bansal, Marcelo Cantarovich
PURPOSE: Loop diuretics (LD) attenuate ischemic injury in nephrons. They are thought to decrease delayed graft function (DGF) during kidney transplantation (KT). This review aimed to summarize the current evidence for the perioperative use of LD during KT. METHODS: We performed an analysis of all articles that were published since the inception of Medline and Embase: 26 studies were selected for inclusion. Scope was LD use during the perioperative phase of KT only...
November 23, 2017: Transplantation Reviews
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