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Renal injury

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https://www.readbyqxmd.com/read/29677080/corm-401-reduces-ischemia-reperfusion-injury-in-an-ex-vivo-renal-porcine-model-of-the-donation-after-cardiac-death
#1
Rabindra N Bhattacharjee, Mahms Richard-Mohamed, Qizhi Sun, Aaron Haig, Ghaleb Aboalsamh, Peter Barrett, Richard Mayer, Ibrahim Alhasan, Karen Pineda-Solis, Larry Jiang, Hajed Alharbi, Manujendra Saha, Eric Patterson, Alp Sener, Gediminas Cepinskas, Anthony M Jevnikar, Patrick P W Luke
BACKGROUND: Carbon monoxide (CO) inhalation protects organ by reducing inflammation and cell death during transplantation processes in animal model. However, using CO in clinical transplantation is difficult due to its delivery in a controlled manner. A manganese-containing CORM-401 has recently been synthesized which can efficiently deliver 3 molar equivalents of CO. We report the ability of this anti-inflammatory CORM-401 to reduce ischemia reperfusion injury associated with prolonged cold storage of renal allografts obtained from donation after cardiac death in a porcine model of transplantation...
April 19, 2018: Transplantation
https://www.readbyqxmd.com/read/29676702/klotho-a-promising-biomarker-closely-related-to-kidney-transplant
#2
REVIEW
Gengguo Deng, Dong Liu
Organ shortage has long been an obstacle to transplant procedures. As acceptance of aging kidneys from expanded criteria donors increases, the long-term outcomes of renal allografts could be unsatisfactory. The klotho gene, which is known as an antiaging gene that is highly expressed in kidneys, is closely associated with chronic kidney disease and acute kidney injury. Results from existing literature have shown a tendency to support Klotho as a renal protective protein owing to its pleiotropic effects. However, few data are available on Klotho in renal transplant...
April 20, 2018: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/29675617/is-acute-pulmonary-embolism-more-severe-in-the-presence-of-obstructive-sleep-apnea-results-from-an-observational-cohort-study
#3
Dinah Konnerth, Florian Schwarz, Michael Probst, Martin Seidler, Tanja Wagner, Christian Faul, Wolfgang von Scheidt, Martin Schwaiblmair, Thomas M Berghaus
Obstructive sleep apnea (OSA) might influence disease severity in acute pulmonary embolism (PE). 253 survivors of acute PE were evaluated for sleep-disordered breathing by portable monitoring and nocturnal polysomnography. PE patients with an apnea-hypopnoea index (AHI) ≥ 15/h were significantly older (p < 0.001), had significantly impaired renal (p < 0.001) and left ventricular functions (p = 0.003), showed significantly elevated troponin I (p = 0.005) and D-dimer levels (p = 0...
April 19, 2018: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/29674665/the-proximal-tubular-%C3%AE-7-nicotinic-acetylcholine-receptor-attenuates-ischemic-acute-kidney-injury-through-akt-pkc-signaling-mediated-ho-1-induction
#4
Hwajin Kim, So Ra Kim, Jihyun Je, Kyuho Jeong, Sooji Kim, Hye Jung Kim, Ki Churl Chang, Sang Won Park
Activation of the α7 nicotinic acetylcholine receptor (α7nAChR) has been shown to attenuate excessive inflammation by inhibiting proinflammatory cytokines during ischemia-reperfusion (IR) injury; however, the underlying kidney-specific molecular mechanisms remain unclear. The protective action of α7nAChR against renal IR injury was investigated using a selective α7nAChR agonist and antagonist. α7nAChR activation reduced plasma creatinine levels and tubular cell damage, whereas α7nAChR inhibition aggravated the IR-induced phenotype...
April 20, 2018: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/29674622/il-33-st2-axis-mediates-hyperplasia-of-intrarenal-urothelium-in-obstructive-renal-injury
#5
Wei-Yu Chen, Jenq-Lin Yang, Yi-Hsiu Wu, Lung-Chih Li, Ru-Fang Li, Ya-Ting Chang, Lo-Hsin Dai, Wan-Chen Wang, Ya-Jen Chang
The monolayered intrarenal urothelium covers the renal papilla and ureteropelvic junction (UPJ). In response to increased renal pressure during obstruction or ischemic injuries, intrarenal urothelial cells begin to proliferate and form a multilayered urothelium. Little is known regarding the mechanism and pathophysiological role of urothelium hyperplasia during renal obstruction. In this study, we investigated the expression of interleukin (IL)-33, an IL-1 family cytokine, in kidneys with unilateral ureteral obstruction (UUO)-induced obstructive injury...
April 20, 2018: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/29673592/intravenous-vitamin-c-attenuates-hemorrhagic-shock-related-renal-injury-through-the-induction-of-sirt1-in-rats
#6
Meng-Zhi Qi, Yi Yao, Rong-Li Xie, Si-Lei Sun, Wen-Wu Sun, Jin-Long Wang, Ying Chen, Bing Zhao, Er-Zhen Chen, En-Qiang Mao
To investigate the effect of intravenous Vitamin C (VC) on hemorrhagic shock (HS)-associated rat renal injury and the involved mechanism. Thirty SD rats were randomly assigned to the sham surgery (sham), hemorrhagic shock (HS), HS+100 mg/kg VC (H + VL), HS+500 mg/kg VC (H + VH) and HS+100 mg/kg VC + EX527 (H + VL + E) groups. Tissue and blood samples were collected 6 h after surgery. Kidney pathological changes were scored. Creatinine (CRE), blood urea nitrogen (BUN), tumor necrosis factor-α (TNF-α), and interleukin-1β (IL-1β) levels in serum and Vitamin C levels and superoxide dismutase (SOD) activity and the ability to suppress hydroxyl radical (RAFHR) in plasma were measured...
April 16, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29673559/prognostic-value-of-the-urea-creatinine-ratio-in-decompensated-heart-failure-and-its-relationship-with-acute-kidney-damage
#7
C Josa-Laorden, A Sola, I Giménez-López, J Rubio-Gracia, V Garcés-Horna, J I Pérez-Calvo
BACKGROUND: Worsening renal function is associated with an adverse prognosis for patients with acute heart failure (AHF). Urea-creatinine ratio (U:C ratio) might be useful for measuring renal function and could help stratify patients with AHF. MATERIAL AND METHODS: An observational and prospective study was conducted to analyse the prognostic value of the U:C ratio, measured during the first 24-28 hours of admission, for patients hospitalised for decompensated Heart failure, and its relationship with estimated glomerular filtration rate (eGFR) and acute kidney injury (AKI)...
April 16, 2018: Revista Clínica Española
https://www.readbyqxmd.com/read/29673370/early-versus-standard-initiation-of-renal-replacement-therapy-in-furosemide-stress-test-non-responsive-acute-kidney-injury-patients-the-fst-trial
#8
Nuttha Lumlertgul, Sadudee Peerapornratana, Thananda Trakarnvanich, Wanjak Pongsittisak, Kajbundit Surasit, Anan Chuasuwan, Pleumjit Tankee, Khajohn Tiranathanagul, Kearkiat Praditpornsilpa, Kriang Tungsanga, Somchai Eiam-Ong, John A Kellum, Nattachai Srisawat
BACKGROUND: The timing of initiation of renal replacement therapy (RRT) in severe acute kidney injury (AKI) remains controversial, with early initiation resulting in unnecessary therapy for some patients while expectant therapy may delay RRT for other patients. The furosemide stress test (FST) has been shown to predict the need for RRT and therefore could be used to exclude low-risk patients from enrollment in trials of RRT timing. We conducted this multicenter pilot study to determine whether FST could be used to screen patients at high risk for RRT and to determine the feasibility of incorporating FST into a trial of early initiation of RRT...
April 19, 2018: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/29672718/mineralocorticoid-receptor-antagonists-in-kidney-transplantation-time-to-consider
#9
Sophie Girerd, Frédéric Jaisser
Although patient survival is significantly improved by kidney transplantation (KT) in comparison with dialysis, it remains significantly lower than that observed in the general population. Graft function is one of the major determinants of patient survival after KT. Mineralocorticoid receptor antagonists (MRAs) could be of particular interest in this population to improve graft function and treat or prevent cardiovascular (CV) complications. In KT, ischaemia/reperfusion injury is a major factor involved in delayed graft function, which is often associated with inferior long-term graft survival...
April 17, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29672566/exogenous-pentraxin-3-inhibits-the-reactive-oxygen-species-mitochondrial-and-apoptosis-pathway-in-acute-kidney-injury
#10
Hyung Ho Lee, Sook Young Kim, Joon Chae Na, Young Eun Yoon, Woong Kyu Han
Pentraxin-3 (PTX3) is a long-form member of the pentraxin family of proteins that has been studied in inflammatory diseases and in various organs. We found that PTX3 protects kidney cells during ischemia and proinflammatory acute kidney injury. The aim of this study was to develop an in vitro experimental model of acute kidney injury and to analyze the protective mechanism of exogenous recombinant PTX3. In this study, cells of the HK-2 renal tubular cell line were treated with a calcium ionophore (A23187), which induced injury by increasing intracellular calcium concentrations and inducing calpain activity and the generation of reactive oxygen species...
2018: PloS One
https://www.readbyqxmd.com/read/29672418/perioperative-use-of-levosimendan-improves-clinical-outcomes-in-patients-post-cardiac-surgery-a-systematic-review-and-meta-analysis
#11
Hua Qiang, Xiu Luo, Jian-Hua Huo, Zhi-Quan Wang
Severe postoperative complications can affect cardiac surgery patients. Levosimendan is a novel calcium sensitizer commonly administered after cardiac surgery. However, the patient benefits are controversial. PubMed, Embase, and the Cochrane library were systematically searched for randomized controlled trials (RCTs) comparing levosimendan with control in adult cardiac surgery patients. Twenty-five studies (3247 patients) were included. Pooled data indicated that levosimendan reduced mortality after cardiac surgery (OR 0...
April 3, 2018: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/29672307/extended-sessions-of-polymyxin-b-immobilized-fiber-column-hemoperfusion-ameliorate-renal-outcome-and-mortality-in-septic-shock-with-acute-kidney-injury
#12
Hiroshi Maekawa, Kousuke Negishi
BACKGROUND/AIMS: Polymyxin-B (PMX) treatment has been reported to decrease mortality in patients with septic shock and acute kidney injury (AKI). In this study, we aimed to evaluate whether extended sessions of PMX (Ext-PMX) immobilized fiber column hemoperfusion ameliorate clinical outcomes in patients complicated with septic shock and AKI without surgical control. METHODS: Twenty-two patients with nonsurgical septic shock and AKI who received PMX were included...
April 19, 2018: Blood Purification
https://www.readbyqxmd.com/read/29672292/identification-of-risk-factors-in-high-dose-methotrexate-induced-acute-kidney-injury-in-childhood-acute-lymphoblastic-leukemia
#13
Dao-Hai Cheng, Hua Lu, Tao-Tao Liu, Xiao-Qin Zou, Hui-Mei Pang
AIMS: Although high-dose methotrexate (HDMTX) is an effective means for the treatment of acute lymphoblastic leukemia (ALL), the development of renal dysfunction remains a significant management challenge. This study aimed to identify the key factors in HDMTX-induced acute kidney injury (AKI) in childhood ALL. METHODS: We retrospectively analyzed the clinical data in 1,329 courses of HDMTX treatment in 336 Chinese ALL children at the First Affiliated Hospital of Guangxi Medical University from September 2012 to November 2016...
April 19, 2018: Chemotherapy
https://www.readbyqxmd.com/read/29671873/t-cell-derived-ifn-%C3%AE-downregulates-protective-group-2-innate-lymphoid-cells-in-murine-lupus-erythematosus
#14
Mathis Düster, Martina Becker, Ann-Christin Gnirck, Malte Wunderlich, Ulf Panzer, Jan-Eric Turner
Innate lymphoid cells (ILCs) are important regulators of the immune response and play a crucial role in the restoration of tissue homeostasis after injury. GATA-3+ IL-13- and IL-5-producing group 2 innate lymphoid cells (ILC2s) have been shown to promote tissue repair in barrier organs, but despite extensive research on ILCs in the recent years, their potential role in autoimmune diseases is still incompletely understood. In the present study, we investigate the role of ILC2s in the MRL/MpJ-Faslpr (MRL-lpr) mouse model for severe organ manifestation of systemic lupus erythematosus (SLE)...
April 19, 2018: European Journal of Immunology
https://www.readbyqxmd.com/read/29671040/preoperative-right-heart-hemodynamics-predict-postoperative-acute-kidney-injury-after-heart-transplantation
#15
Goksel Guven, Milos Brankovic, Alina A Constantinescu, Jasper J Brugts, Dennis A Hesselink, Sakir Akin, Ard Struijs, Ozcan Birim, Can Ince, Olivier C Manintveld, Kadir Caliskan
PURPOSE: Acute kidney injury (AKI) frequently occurs after heart transplantation (HTx), but its relation to preoperative right heart hemodynamic (RHH) parameters remains unknown. Therefore, we aimed to determine their predictive properties for postoperative AKI severity within 30 days after HTx. METHODS: From 1984 to 2016, all consecutive HTx recipients (n = 595) in our tertiary referral center were included and analyzed for the occurrence of postoperative AKI staged by the kidney disease improving global outcome criteria...
April 18, 2018: Intensive Care Medicine
https://www.readbyqxmd.com/read/29670679/damaging-effects-of-bisphenol-a-on-the-kidney-and-the-protection-by-melatonin-emerging-evidences-from-in-vivo-and-in-vitro-studies
#16
Anongporn Kobroob, Wachirasek Peerapanyasut, Nipon Chattipakorn, Orawan Wongmekiat
This study investigates the effects of bisphenol A (BPA) contamination on the kidney and the possible protection by melatonin in experimental rats and isolated mitochondrial models. Rats exposed to BPA (50, 100, and 150 mg/kg, i.p.) for 5 weeks demonstrated renal damages as evident by increased serum urea and creatinine and decreased creatinine clearance, together with the presence of proteinuria and glomerular injuries in a dose-dependent manner. These changes were associated with increased lipid peroxidation and decreased antioxidant glutathione and superoxide dismutase...
2018: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29670094/loss-of-deptor-in-renal-tubules-protects-against-cisplatin-induced-acute-kidney-injury
#17
Caixia Wang, Huaiqian Dai, Zhi Xiong, Qiancheng Song, Zhipeng Zou, Mangmang Li, Jing Nie, Xiaochun Bai, Zhenguo Chen
DEP domain containing mTOR-interacting protein (DEPTOR) was originally identified as an in vivo dual inhibitor of mechanistic target of rapamycin (mTOR). It was recently reported to be involved in renal physiology and pathology in vitro; however, its detailed roles and mechanisms in vivo are completely unknown. We observed that DEPTOR expression in the kidney was markedly increased on day 3 after cisplatin treatment, at which time cell apoptosis peaked, implicating DEPTOR in cisplatin-induced acute kidney injury (AKI)...
April 18, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29669946/pravastatin-therapy-during-preeclampsia-prevents-long-term-adverse-health-effects-in-mice
#18
Nicola Garrett, Joaquim Pombo, Michelle Umpierrez, James E Clark, Mark Simmons, Guillermina Girardi
Preeclampsia (PE), associates with long-term increased risk for cardiovascular disease in women, suggesting that PE is not an isolated disease of pregnancy. It is not known if increased risk for long-term diseases is due to PE-specific factors or to prepregnancy renal and cardiovascular risk factors. We used a mouse model in which a WT female with normal prepregnancy health develops PE to investigate if preeclampsia causes long-term cardiovascular consequences after pregnancy for mothers and offspring. Mothers exhibited endothelial dysfunction and hypertension after PE and had glomerular injury that not only persisted but deteriorated, leading to fibrosis...
April 19, 2018: JCI Insight
https://www.readbyqxmd.com/read/29669331/previous-exercise-effects-in-cisplatin-induced-renal-lesions-in-rats
#19
Heloísa D C Francescato, Lucas F Almeida, Natany G Reis, Camila M Faleiros, Marcelo Papoti, Roberto S Costa, Terezila M Coimbra
BACKGROUND/AIMS: Physical training has beneficial effects on endothelial function and can influence the regeneration of the endothelial cell. We investigated the effect of physical training on cisplatin (CP)-induced acute kidney injury and assessed the impact of training on endothelial structure and function, and on the inflammatory processes in rats. METHODS: We injected male Wistar rats subjected to previous physical training in treadmill running (trained, TR) or not (sedentary, SED) with CP (5 mg/kg) (TR+CP and SED+CP groups, respectively)...
April 13, 2018: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/29669318/neurod-expression-in-podocytes-and-interrelationships-with-nephrin-at-both-nuclear-and-cytoplasmic-sites
#20
Silvia Armelloni, Masami Ikehata, Deborah Mattinzoli, Min Li, Carlo Maria Alfieri, Mariapia Rastaldi, Piergiorgio Messa
Background/Aims The research of genes implicated in kidney glomerular function, eliciting cell fate program, is always at the forefront in nephrological studies. Several neurological molecules have been recently the object of study not only for their involvement in the central nervous system differentiation but also for their importance in the functionality of other organs and for mature phenotype, as in kidney. NeuroD, in CNS, is related to two functional roles, the early survival and the differentiation. The aim of our study was to ascertain the presence of NeuroD transcription factor in glomeruli and to understand which targets and mechanisms NeuroD controls...
April 13, 2018: Cellular Physiology and Biochemistry
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