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https://www.readbyqxmd.com/read/28331061/an-intracellular-matrix-metalloproteinase-2-isoform-induces-tubular-regulated-necrosis-implications-for-acute-kidney-injury
#1
Carla S Ceron, Celine Baligand, Sunil K Joshi, Shaynah Wanga, Patrick M Cowley, Joy P Walker, Sang Heon Song, Rajeev Mahimkar, Anthony J Baker, Robert L Raffai, Zhen J Wang, David H Lovett
Acute kidney injury (AKI) causes severe morbidity, mortality, and chronic kidney disease (CKD). Mortality is particularly marked in the elderly and with pre-existing CKD. Oxidative stress is a common theme in models of AKI induced by ischemia/reperfusion (I/R) injury. We recently characterized an intracellular isoform of matrix metalloproteinase-2 (MMP-2) induced by oxidative stress-mediated activation of an alternate promoter in the first intron of the MMP-2 gene. This generates an N-terminal truncated MMP-2 isoform (NTT-MMP-2) that is intracellular and associated with mitochondria...
March 22, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28330439/impact-of-preoperative-anemia-and-postoperative-hemoglobin-drop-on-the-incidence-of-acute-kidney-injury-and-in-hospital-mortality-in-patients-with-type-b-acute-aortic-syndromes-undergoing-thoracic-endovascular-aortic-repair
#2
Riccardo Gorla, Konstantinos Tsagakis, Michael Horacek, Amir-Abbas Mahabadi, Philipp Kahlert, Heinz Jakob, Eduardo Bossone, Raimund Erbel, Rolf Alexander Jánosi
BACKGROUND: The impact of preoperative anemia and postoperative hemoglobin (Hb) drop on the incidence of acute kidney injury (AKI) after thoracic endovascular aortic repair (TEVAR) for type B acute aortic syndromes (AAS) as well as their prognostic value is unknown. METHODS: This retrospective study included 144 patients with type B AAS undergoing TEVAR at our center. Preoperative anemia was classified as no/mild (Hb ≥ 12.0 g/dL in men; ≥11.3 g/dL in women), moderate (Hb 10...
April 2017: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28321464/erratum-to-post-contrast-acute-kidney-injury-in-intensive-care-unit-patients-a-propensity-score-adjusted-study
#3
Jennifer S McDonald, Robert J McDonald, Eric E Williamson, David F Kallmes, Kianoush Kashani
No abstract text is available yet for this article.
March 20, 2017: Intensive Care Medicine
https://www.readbyqxmd.com/read/28320994/a-nomogram-to-predict-contrast-induced-nephropathy-in-patients-undergoing-percutaneous-coronary-intervention
#4
Xun Hu, Xiao-Dong Zhuang, Yi Li, Fei-Fei Li, Yue Guo, Zhi-Min Du, Xin-Xue Liao
Contrast-induced nephropathy (CIN) is the third leading cause of hospital-acquired acute kidney injury (AKI). Emerging evidence has revealed that soluble klotho (sklotho) could be a novel biomarker for early AKI diagnosis. The aims of this study were to assess the predictive role of sklotho for CIN and to develop a prediction nomogram in patients undergoing percutaneous coronary intervention (PCI). This study is registered on Clinicaltrials.gov (NCT 02650336).Patients aged 18 years or older undergoing planned PCI were prospectively recruited between May 2014 and July 2015...
March 21, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28320854/nonsteroidal-mineralocorticoid-receptor-antagonist-finerenone-protects-against-acute-kidney-injury-mediated-chronic-kidney-disease-role-of-oxidative-stress
#5
Lionel Lattenist, Sebastian M Lechner, Smail Messaoudi, Alan Le Mercier, Soumaya El Moghrabi, Sonia Prince, Norma A Bobadilla, Peter Kolkhof, Frédéric Jaisser, Jonatan Barrera-Chimal
Acute kidney injury induced by ischemia/reperfusion (IR) is a frequent complication in hospitalized patients. Mineralocorticoid receptor antagonism has shown to be helpful against renal IR consequences; however, the potential benefit of novel nonsteroidal mineralocorticoid receptor antagonists such as finerenone has to be further explored. In this study, we evaluated the efficacy of finerenone to prevent the acute and chronic consequences of ischemic acute kidney injury. For the acute study (24 hours), 18 rats were divided into sham, bilateral renal ischemia of 25 minutes, and rats that received 3 doses of finerenone at 48, 24, and 1 hour before the ischemia...
March 20, 2017: Hypertension
https://www.readbyqxmd.com/read/28318632/endovascular-aneurysm-repair-evar-and-transcatheter-aortic-valve-replacement-tavr-associated-acute-kidney-injury
#6
REVIEW
Kenar D Jhaveri, Athanasios N Saratzis, Rimda J Wanchoo, Pantelis A Sarafidis
Acute kidney injury (AKI) after surgery or intervention is an important complication that may impact mortality, morbidity, and health care costs. Endovascular procedures are now performed routinely for a variety of pathologies that were traditionally treated with open surgery because randomized trials comparing endovascular and open surgery have shown at least equally good results and reduced complication and hospitalization rates with endovascular techniques. However, endovascular procedures have been associated with an increased risk for postoperative AKI, predominantly owing to contrast nephrotoxicity...
March 16, 2017: Kidney International
https://www.readbyqxmd.com/read/28303661/immunological-and-physiological-observations-in-baboons-with-life-supporting-genetically-engineered-pig-kidney-grafts
#7
Hayato Iwase, Hidetaka Hara, Mohamed Ezzelarab, Tao Li, Zhongqiang Zhang, Bingsi Gao, Hong Liu, Cassandra Long, Yi Wang, Amy Cassano, Edwin Klein, Carol Phelps, David Ayares, Abhinav Humar, Martin Wijkstrom, David K C Cooper
BACKGROUND: Genetically engineered pigs could provide a source of kidneys for clinical transplantation. The two longest kidney graft survivals reported to date have been 136 and 310 days, but graft survival >30 days has been unusual until recently. METHODS: Donor pigs (n=4) were on an α1,3-galactosyltransferase gene-knockout (GTKO)/human complement regulatory protein (CD46) background (GTKO/CD46). In addition, the pigs were transgenic for at least one human coagulation regulatory protein...
March 17, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/28294175/the-age-associated-loss-of-ischemic-preconditioning-in-the-kidney-is-accompanied-by-mitochondrial-dysfunction-increased-protein-acetylation-and-decreased-autophagy
#8
Stanislovas S Jankauskas, Irina B Pevzner, Nadezda V Andrianova, Ljubava D Zorova, Vasily A Popkov, Denis N Silachev, Nataliya G Kolosova, Egor Y Plotnikov, Dmitry B Zorov
In young rats, ischemic preconditioning (IPC), which consists of 4 cycles of ischemia and reperfusion alleviated kidney injury caused by 40-min ischemia. However,old rats lost their ability to protect the ischemic kidney by IPC. A similar aged phenotype was demonstrated in 6-month-old OXYS rats having signs of premature aging. In the kidney of old and OXYS rats, the levels of acetylated nuclear proteins were higher than in young rats, however, unlike in young rats, acetylation levels in old and OXYS rats were further increased after IPC...
March 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28292877/the-effects-of-dual-ppar%C3%AE-%C3%AE-agonism-compared-with-ace-inhibition-in-the-btbrob-ob-mouse-model-of-diabetes-and-diabetic-nephropathy
#9
Anette Ericsson, Pernilla Tonelius, Mark Lal, Alan Sabirsh, Gerhard Böttcher, Lena William-Olsson, Maria Strömstedt, Camilla Johansson, Gina Hyberg, Sofia Tapani, Ann-Cathrine Jönsson-Rylander, Robert Unwin
The leptin-deficient BTBRob/ob mouse develops progressive albuminuria and morphological lesions similar to human diabetic nephropathy (DN), although whether glomerular hyperfiltration, a recognized feature of early DN that may contribute to renal injury, also occurs in this model is not known. Leptin replacement has been shown to reverse the signs of renal injury in this model, but in contrast, the expected renoprotection by angiotensin-converting enzyme (ACE) inhibition in BTBRob/ob mice seems to be limited...
March 2017: Physiological Reports
https://www.readbyqxmd.com/read/28285376/association-of-podocyte-autophagosome-numbers-with-idiopathic-membranous-nephropathy-and-secondary-membranous-nephropathy
#10
Juan Jin, Huifang Zhan, Bo Lin, Yiwen Li, Wei Zhang, Qiang He
PURPOSE: This study was to investigate the relation between the number of autophagosomes in podocytes and the syndromes of idiopathic membranous nephropathy (IMN) and secondary membranous nephropathy (sMN). METHODS: The pathological changes in the kidney tissues of patients were detected with the hematoxylin and eosin staining, the periodic acid-Schiff reagent treatment, the Masson's trichrome staining and the immunofluorescence detection (IF). Meanwhile, the autophagosomes in podocyte were analyzed by transmission electron microscopy and the IF assay pointing to LC3-II, an autophagic marker...
March 11, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28281738/efficacy-of-nicorandil-treatment-for-prevention-of-contrast-induced-nephropathy-in-high-risk-patients-undergoing-cardiac-catheterization-a-prospective-randomized-controlled-trial
#11
Leili Iranirad, Seyed Fakhreddin Hejazi, Mohammad Saleh Sadeghi, Shahram Arsang Jang
BACKGROUND: Contrast-induced nephropathy (CIN) remains to be a potentially serious complication of radiographic procedures and is the third leading cause of the acute kidney injury (AKI) among hospitalized patients. This clinical trial was performed to assess the preventive effect of oral nicorandil on CIN in high-risk patients undergoing cardiac catheterization. METHODS: In this prospective, randomized, controlled trial, 128 patients with at least two risk factors for CIN undergoing elective percutaneous coronary intervention (PCI) were randomly assigned to either the nicorandil group or the control group...
March 10, 2017: Cardiology Journal
https://www.readbyqxmd.com/read/28280699/contrast-induced-acute-kidney-injury-in-kidney-transplant-recipients-a-systematic-review-and-meta-analysis
#12
Wisit Cheungpasitporn, Charat Thongprayoon, Michael A Mao, Shennen A Mao, Matthew R D'Costa, Wonngarm Kittanamongkolchai, Kianoush B Kashani
AIM: To evaluate the incidence of contrast-induced acute kidney injury (CIAKI) in kidney transplant recipients. METHODS: A literature search was performed using MEDLINE, EMBASE, and the Cochrane Database of Systematic Reviews from the inception of the databases through July 2016. Studies assessing the incidence of CIAKI in kidney transplant recipients were included. We applied a random-effects model to estimate the incidence of CIAKI. RESULTS: Six studies of 431 kidney transplant recipients were included in the analyses to assess the incidence of CIAKI in kidney transplant recipients...
February 24, 2017: World Journal of Transplantation
https://www.readbyqxmd.com/read/28272231/association-of-n-terminal-pro-brain-natriuretic-peptide-with-contrast-induced-acute-kidney-injury-and-long-term-mortality-in-patients-with-heart-failure-and-mid-range-ejection-fraction-an-observation-study
#13
Kun Wang, Hua-Long Li, Li-Ling Chen, Wei-Jie Bei, Kai-Yang Lin, Brendan Smyth, Shi-Qun Chen, Xiao-Sheng Guo, Wei Guo, Yuan-Hui Liu, Peng-Yuan Chen, Ji-Yan Chen, Kai-Hong Chen, Yong Liu, Ning Tan
The potential value of N-terminal pro-brain natriuretic peptide (NT-proBNP) for contrast-induced acute kidney injury (CI-AKI) in patients with heart failure and mid-range ejection fraction (HFmrEF) is unclear. We investigated whether NT-proBNP is associated with CI-AKI and long-term mortality following elective cardiac catheterization in patients with HFmrEF.A total of 174 consecutive patients with HFmrEF undergoing elective coronary angiography or intervention were enrolled. The primary endpoint was the development of CI-AKI, defined as an absolute increase of ≥0...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28270411/-pro-renin-receptor-is-an-amplifier-of-wnt-%C3%AE-catenin-signaling-in-kidney-injury-and-fibrosis
#14
Zhen Li, Lili Zhou, Yongping Wang, Jinhua Miao, Xue Hong, Fan Fan Hou, Youhua Liu
The (pro)renin receptor (PRR) is a transmembrane protein with multiple functions. However, its regulation and role in the pathogenesis of CKD remain poorly defined. Here, we report that PRR is a downstream target and an essential component of Wnt/β-catenin signaling. In mouse models, induction of CKD by ischemia-reperfusion injury (IRI), adriamycin, or angiotensin II infusion upregulated PRR expression in kidney tubular epithelium. Immunohistochemical staining of kidney biopsy specimens also revealed induction of renal PRR in human CKD...
March 7, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28266940/role-of-temperature-in-reconditioning-and-evaluation-of-cold-preserved-kidney-and-liver-grafts
#15
Thomas Minor, Charlotte von Horn, Andreas Paul
PURPOSE OF REVIEW: Organ shortage in transplantation medicine forces surgical research toward the development of more efficient approaches in organ preservation to enable the application of 'less than optimal' grafts. This review summarizes current techniques aiming to recondition cold-stored organ grafts prior to transplantation to reduce reperfusion-induced tissue injury and improve postimplantation graft function. RECENT FINDINGS: End-ischemic reconditioning has classically been attempted by cold oxygenated perfusion...
March 6, 2017: Current Opinion in Organ Transplantation
https://www.readbyqxmd.com/read/28258868/rates-of-complications-and-secondary-surgeries-after-in%C3%A2-situ-cubital-tunnel-release-compared-with-ulnar-nerve-transposition-a-retrospective-review
#16
Dafang Zhang, Brandon E Earp, Philip Blazar
PURPOSE: The purpose of this study was to contrast the rate and types of complications and secondary surgeries for in situ cubital tunnel release and ulnar nerve transposition. METHODS: A retrospective cohort study was performed by query of hospital billing records for all patients who underwent cubital tunnel surgery from August 2008 to July 2013, yielding 421 patients. Exclusion criteria were acute trauma, revision surgery, neoplasm, age younger than 18 years, incomplete records, and postoperative follow-up less than 3 months...
February 28, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28258258/association-between-acute-kidney-disease-and-intravenous-dye-administration-in-patients-with-acute-stroke-a-population-based-study
#17
Stacie L Demel, Aaron W Grossman, Jane C Khoury, Charles J Moomaw, Kathleen Alwell, Brett M Kissela, Daniel Woo, Matthew L Flaherty, Simona Ferioli, Jason Mackey, Felipe De Los Rios la Rosa, Sharyl Martini, Opeolu Adeoye, Dawn O Kleindorfer
BACKGROUND AND PURPOSE: Computed tomographic angiography and conventional angiography provide timely vascular anatomic information in patients with stroke. However, iodinated contrast dye may cause acute kidney injury (AKI). Within a large, biracial population, we examined in-hospital incidence of new or worsening kidney disease in patients with stroke and its association with administration of intravenous dye. METHODS: All adult residents of the Greater Cincinnati/Northern Kentucky region with acute ischemic stroke or intracerebral hemorrhage who presented to an emergency department in 2010 were included...
March 3, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28252672/acute-podocyte-injury-is-not-a-stimulus-for-podocytes-to-migrate-along-the-glomerular-basement-membrane-in-zebrafish-larvae
#18
Florian Siegerist, Antje Blumenthal, Weibin Zhou, Karlhans Endlich, Nicole Endlich
Podocytes have a unique 3D structure of major and interdigitating foot processes which is the prerequisite for renal blood filtration. Loss of podocytes leads to chronic kidney disease ending in end stage renal disease. Until now, the question if podocytes can be replaced by immigration of cells along the glomerular basement membrane (GBM) is under debate. We recently showed that in contrast to former theories, podocytes are stationary in the zebrafish pronephros and neither migrate nor change their branching pattern of major processes over 23 hours...
March 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28251598/diagnosis-of-cardiac-surgery-associated-acute-kidney-injury-differential-roles-of-creatinine-chitinase-3-like-protein-1-and-neutrophil-gelatinase-associated-lipocalin-a-prospective-cohort-study
#19
Jorien De Loor, Ingrid Herck, Katrien Francois, Astrid Van Wesemael, Lieve Nuytinck, Evelyne Meyer, Eric A J Hoste
BACKGROUND: A common and serious complication of cardiac surgery prompting early detection and intervention is cardiac surgery-associated acute kidney injury (CSA-AKI). Urinary chitinase 3-like protein 1 (UCHI3L1) was found to predict AKI associated with critical illness in adults. Our aims were therefore to evaluate whether UCHI3L1 can also be used to predict AKI associated with elective cardiac surgery in adults, and to compare this predictive ability with that of urinary neutrophil gelatinase-associated lipocalin (UNGAL), more frequently assessed early serum creatinine (SCr) measurements, and various two-biomarker panels...
December 2017: Annals of Intensive Care
https://www.readbyqxmd.com/read/28251313/the-role-of-macrophages-in-hypertension-and-its-complications
#20
REVIEW
A Justin Rucker, Steven D Crowley
Circulating monocytes and tissue macrophages play complex roles in the pathogenesis of hypertension, a highly prevalent disease associated with catastrophic cardiovascular morbidity. In the vasculature and kidney, macrophage-derived reactive oxygen species (ROS) and inflammatory cytokines induce endothelial and epithelial dysfunction, respectively, resulting in vascular oxidative stress and impairment of sodium excretion. By contrast, VEGF-C-expressing macrophages in the skin can facilitate the removal of excess interstitial stores of sodium by stimulating lymphangiogenesis...
March 1, 2017: Pflügers Archiv: European Journal of Physiology
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