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Acute kidney injury,

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https://www.readbyqxmd.com/read/29045746/identification-of-natural-products-as-inhibitors-of-human-organic-anion-transporters-oat1-and-oat3-and-their-protective-effect-on-mercury-induced-toxicity
#1
Xue Wang, Lifeng Han, Gentao Li, Wei Peng, Xiumei Gao, Curtis D Klaassen, Guanwei Fan, Youcai Zhang
Mercury accumulates in kidneys and produces acute kidney injury. Semen cassiae (SC), a widely consumed tea and herbal medicine in Eastern Asia, has been reported to have protective effects on kidneys. In this study, SC extract was shown to almost abolish the histological alterations induced by mercuric chloride (HgCl2) in rat kidneys. A total of 22 compounds were isolated from SC, and 1,7,8-methoxyl-2-hydroxyl-3-methyl-anthraquinone was detected in SC for the first time. Among the 8 compounds identified in the blood of rats after SC treatment, 6 were strong inhibitors of human organic anion transporter 1 and 3 (OAT1 and OAT3)...
October 13, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29045706/kidney-injury-molecule-1-staining-in-renal-allograft-biopsies-10-days-after-transplantation-is-inversely-correlated-with-functioning-proximal-tubular-epithelial-cells
#2
Jonna R Bank, Pieter van der Pol, Dianne Vreeken, Catherine Monge-Chaubo, Ingeborg M Bajema, Nicole Schlagwein, Daniëlle J van Gijlswijk, Sandra W van der Kooij, Marlies E J Reinders, Johan W de Fijter, Cees van Kooten
Background: Kidney injury molecule-1 (KIM-1) and neutrophil gelatinase-associated lipocalin (NGAL) are promising biomarkers for monitoring delayed graft function (DGF) after kidney transplantation. Here we investigated localization and distribution of KIM-1 and NGAL staining in renal allograft biopsies and studied their association with histological features, functional DGF (fDGF) and the tubular function slope (TFS), a functioning proximal tubular epithelial cell (PTEC) marker. Methods: Day 10 protocol biopsies of 64 donation after circulatory death recipients were stained for KIM-1 and NGAL and the positive area was quantified using ImageJ software...
October 16, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29045621/using-proton-pump-inhibitors-correlates-with-an-increased-risk-of-chronic-kidney-disease-a-nationwide-database-derived-case-controlled-study
#3
Shih-Chang Hung, Kuan-Fu Liao, Hung-Chang Hung, Cheng-Li Lin, Shih-Wei Lai, Po-Chang Lee, Shih-Rong Hung
Background: Those taking proton pump inhibitors (PPIs) might have a higher risk of acute kidney injury. The long-term safety, especially the PPI-associated chronic kidney disease (CKD) is the subsequent concern. Objective: This study explores the potential relationship between using PPIs and CKD in Taiwan. Methods: Using a database collated by the Taiwan National Health Insurance programme, we conducted a population-based case-controlled study to identify 16 704 cases of patients aged 20 years or older with newly diagnosed CKD between 2000 and 2013...
October 14, 2017: Family Practice
https://www.readbyqxmd.com/read/29045467/the-dose-of-hydroxyethyl-starch-6-130-0-4-for-fluid-therapy-and-the-incidence-of-acute-kidney-injury-after-cardiac-surgery-a-retrospective-matched-study
#4
Mona Momeni, Lompoli Nkoy Ena, Michel Van Dyck, Amine Matta, David Kahn, Dominique Thiry, André Grégoire, Christine Watremez
The safety of hydroxyethyl starches (HES) is still under debate. No studies have compared different dosing regimens of HES in cardiac surgery. We analyzed whether the incidence of Acute Kidney Injury (AKI) differed taking into account a weight-adjusted cumulative dose of HES 6% 130/0.4 for perioperative fluid therapy. This retrospective cohort study included all adult patients undergoing elective or emergency cardiac surgery with or without cardiopulmonary bypass. Exclusion criteria were patients on renal replacement therapy (RRT), cardiac trauma surgery, heart transplantation, patients with ventricular assist devices, subjects who required a surgical revision for bleeding and those whose medical records were incomplete...
2017: PloS One
https://www.readbyqxmd.com/read/29044764/estimated-glomerular-filtration-rate-and-the-risk-benefit-profile-of-intensive-blood-pressure-control-among-non-diabetic-patients-a-post-hoc-analysis-of-a-randomized-clinical-trial
#5
Yoshitsugu Obi, Kamyar Kalantar-Zadeh, Ayumi Shintani, Csaba P Kovesdy, Takayuki Hamano
BACKGROUND: The Systolic Blood Pressure Intervention Trial (SPRINT; ClinicalTrials. gov, NCT01206062) reported reduced cardiovascular events by intensive blood pressure (BP) control among hypertensive patients without diabetes. However, the risk-benefit profile of intensive BP control may differ across estimated glomerular filtration rate (eGFR) levels. METHODS: This is a post-hoc analysis of the SPRINT. Non-diabetic hypertensive adults (n=9,361) with eGFR >20 mL/min/1...
October 16, 2017: Journal of Internal Medicine
https://www.readbyqxmd.com/read/29044520/quercetin-protects-against-radiocontrast-medium-toxicity-in-human-renal-proximal-tubular-cells
#6
Michele Andreucci, Teresa Faga, Antonio Pisani, Raffele Serra, Domenico Russo, GIovambattista De Sarro, Ashour Michael
Radiocontrast media (RCM)-induced acute kidney injury (CI-AKI) is a major clinical problem whose, pathophysiology is not well understood. Direct toxic effects on renal cells, possibly mediated by reactive oxygen species, have been postulated as contributing to CI-AKI. We investigated the effect of quercetin on human renal proximal tubular (HK-2) cells treated with the radiocontrast medium (RCM) sodium diatrizoate. Quercetin is the most widely studied flavonoid, and the most abundant flavonol present in foods...
October 16, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29044341/the-use-of-antimicrobials-in-septic-patients-with-acute-kidney-injury
#7
Fernanda Moreira de Freitas, Welder Zamoner, Durval Sampaio de Souza Garms, Mariele Gobo de Oliveira, André Luis Balbi, Daniela Ponce
Sepsis is the most common cause of death in critically ill patients and it may be associated with multiorgan failure, including acute kidney injury (AKI). This situation can require acute renal support and increase mortality. Therefore, it is essential to administrate antimicrobials in dosis to achieve adequate serum levels, preventing overdosis and drug toxicity or underdosing and risk for resistance to antibiotics and higher mortality. To date, there aren't validated guidelines on antibiotic dosis adjustment in septic patients with AKI and the recommendations are extrapolated from studies conducted in non-critical patients with chronic kidney disease in end stage receiving chronic renal replacement therapy...
July 2017: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
https://www.readbyqxmd.com/read/29044306/biomarkers-of-renal-recovery-after-acute-kidney-injury
#8
Sérgio Mina Gaião, José Artur Osório de Carvalho Paiva
Novel biomarkers can be suitable for early acute kidney injury diagnosis and the prediction of the need for dialysis. It remains unclear whether such biomarkers may also play a role in the prediction of recovery after established acute kidney injury or in aiding the decision of when to stop renal support therapy. PubMed, Web of Science and Google Scholar were searched for studies that reported on the epidemiology of renal recovery after acute kidney injury, the risk factors of recovery versus non-recovery after acute kidney injury, and potential biomarkers of acute kidney injury recovery...
July 2017: Revista Brasileira de Terapia Intensiva
https://www.readbyqxmd.com/read/29043146/calciphylaxis-in-a-nondialysis-patient-treated-with-sodium-thiosulfate-and-high-dose-of-oxygen
#9
Anawin Sanguankeo, Natanong Thamcharoen, Sikarin Upala
BACKGROUND: Calciphylaxis in a nondialysis patient is a rare condition and is characterized by calcific deposition in tissue. We present a case of calciphylaxis in a nondialysis patient who was diagnosed by clinical presentation and skin biopsy and was treated with sodium thiosulfate with improvement of skin lesions. CASE: A 43-year-old female with type 2 diabetes and atrial fibrillation taking oral anticoagulation medication presented with reddish drainage from the right buttock...
2017: Clin Nephrol Case Stud
https://www.readbyqxmd.com/read/29043145/anca-associated-pauci-immune-glomerulonephritis-in-a-patient-with-bacterial-endocarditis-a-challenging-clinical-dilemma
#10
Andrea Cervi, Dylan Kelly, Iakovina Alexopoulou, Nader Khalidi
PURPOSE: We report the case of a 59-year-old man with chronic hepatitis B and C infection presenting with acute kidney injury and enterococcus faecalis-infective endocarditis (IE). An elevated proteinase-3 (PR3)-ANCA and pauci-immune glomerulonephritis (GN) on renal biopsy were discovered, corresponding to ANCA-mediated GN. We conducted a literature review to assess the role of ANCA in IE and treatment implications. METHODS: On systematic review of the literature, we found five previous cases whereby IE caused by streptococcus and bartonella species were related to ANCA vasculitis-associated GN...
2017: Clin Nephrol Case Stud
https://www.readbyqxmd.com/read/29043141/antineutrophil-cytoplasmic-antibody-positive-pauci-immune-glomerulonephritis-associated-with-mantle-cell-lymphoma
#11
Kana N Miyata, Nazia A Siddiqi, Lawrence P Kiss, Nikolas B Harbord, James F Winchester
Renal involvement in non-Hodgkin lymphoma, especially mantle cell lymphoma (MCL) is rare. A 77-year-old man presented with acute kidney injury (AKI), which rapidly progressed to dialysis dependence. Kidney biopsy revealed patchy B-cell lymphocytic aggregates in the interstitium, which were positive for cyclin D1, consistent with atypical CD5-negative MCL as confirmed by the detection of translocation t(11;14) by FISH. Crescents were noted in 3 of 26 glomeruli; while PR-3 antineutrophil cytoplasmic antibody (ANCA) positivity and negative immunofluorescence suggested an additional pauci-immune (rapidly progressive) glomerulonephritis pattern of injury...
2017: Clin Nephrol Case Stud
https://www.readbyqxmd.com/read/29043140/warfarin-related-nephropathy-in-a-patient-with-renal-pelvic-cancer
#12
Yuki Nagasako, Akiko Fujii, Satoshi Furuse, Katsunori Saito, Naobumi Mise
An 83-year-old Japanese man had a history of chronic heart failure due to bradycardia-tachycardia syndrome. He was admitted to our hospital because of macrohematuria and acute kidney injury (AKI), which were detected by an urologist at an outpatient visit. He had a history of recurrent macrohematuria and transurethral resection of bladder tumors twice in the preceding 2 years. He had been on warfarin for 12 years, with a stable international normalized ratio (INR) that was usually less than 2.1. Urinalysis revealed numerous red blood cells (RBCs) and mild proteinuria without RBC casts...
2017: Clin Nephrol Case Stud
https://www.readbyqxmd.com/read/29043098/spermidine-is-protective-against-kidney-ischemia-and-reperfusion-injury-through-inhibiting-dna-nitration-and-parp1-activation
#13
Jinu Kim
Kidney ischemia and reperfusion injury (IRI) is associated with a high mortality rate, which is attributed to tubular oxidative and nitrative stresses; however, an effective approach to limit IRI remains elusive. Spermidine, a naturally occurring polyamine, protects yeast cells against aging through the inhibition of oxidative stress and necrosis. In the present study, spermidine supplementation markedly attenuated histological damage and kidney dysfunction during IRI. In addition, exogenous spermidine potently inhibited poly(ADP-ribose) polymerase 1 (PARP1) activation and DNA nitrative/oxidative stress following IRI...
September 2017: Anatomy & Cell Biology
https://www.readbyqxmd.com/read/29042954/dexmedetomidine-ameliorates-the-inflammatory-immune-response-in-rats-with-acute-kidney-damage
#14
Weihua Liu, Wenli Yu, Yiqi Weng, Yongwang Wang, Mingwei Sheng
It has been demonstrated that dexmedetomidine (Dex) can protect patients with acute kidney injury from experiencing further tissue damage, however its mechanism of action remains unclear. The present study investigated the immune modulatory functions of Dex in rats with acute kidney injury (AKI) induced via injection of lipopolysaccharide into the tail vein. ELISA analysis showed that Dex reduced the levels of inflammatory cytokines in rats with AKI in a dose dependent manner. Furthermore, the regulatory effects of Dex on cytokine production disappeared when the α-2 adrenergic receptor antagonist Yohimbine (YOH) was added...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29042548/human-mesenchymal-stromal-cells-transplanted-into-mice-stimulate-renal-tubular-cells-and-enhance-mitochondrial-function
#15
Luca Perico, Marina Morigi, Cinzia Rota, Matteo Breno, Caterina Mele, Marina Noris, Martino Introna, Chiara Capelli, Lorena Longaretti, Daniela Rottoli, Sara Conti, Daniela Corna, Giuseppe Remuzzi, Ariela Benigni
Mesenchymal stromal cells (MSCs) are renoprotective and drive regeneration following injury, although cellular targets of such an effect are still ill-defined. Here, we show that human umbilical cord (UC)-MSCs transplanted into mice stimulate tubular cells to regain mitochondrial mass and function, associated with enhanced microtubule-rich projections that appear to mediate mitochondrial trafficking to create a reparative dialogue among adjacent tubular cells. Treatment with UC-MSCs in mice with cisplatin-induced acute kidney injury (AKI) regulates mitochondrial biogenesis in proximal tubuli by enhancing PGC1α expression, NAD(+) biosynthesis and Sirtuin 3 (SIRT3) activity, thus fostering antioxidant defenses and ATP production...
October 17, 2017: Nature Communications
https://www.readbyqxmd.com/read/29042464/recognizing-the-elephant-in-the-room-palliative-care-needs-in-acute-kidney-injury
#16
EDITORIAL
Amar D Bansal, Jane O Schell
No abstract text is available yet for this article.
October 17, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/29042455/microrna-709-mediates-acute-tubular-injury-through-effects-on-mitochondrial-function
#17
Yan Guo, Jiajia Ni, Shuang Chen, Mi Bai, Jiajuan Lin, Guixia Ding, Yue Zhang, Pingping Sun, Zhanjun Jia, Songming Huang, Li Yang, Aihua Zhang
Mitochondrial dysfunction has important roles in the pathogenesis of AKI, yet therapeutic approaches to improve mitochondrial function remain limited. In this study, we investigated the pathogenic role of microRNA-709 (miR-709) in mediating mitochondrial impairment and tubular cell death in AKI. In a cisplatin-induced AKI mouse model and in biopsy samples of human AKI kidney tissue, miR-709 was significantly upregulated in the proximal tubular cells (PTCs). The expression of miR-709 in the renal PTCs of patients with AKI correlated with the severity of kidney injury...
October 17, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/29042438/the-serum-protein-renalase-reduces-injury-in-experimental-pancreatitis
#18
Thomas R Kolodecik, Anamika M Reed, Kimie Date, Christine Shugrue, Vikhil Patel, Shang-Lin Chung, Gary V Desir, Fred S Gorelick
Acute pancreatitis is a disease associated with inflammation and tissue damage. One protein that protects against acute injury, including ischemic injury to both the kidney and heart, renalase, which is secreted into the blood by the kidney and other tissues. However, whether renalase reduces acute injury associated with pancreatitis is unknown. Here, we used both in vitro and in vivo murine models of acute pancreatitis to study renalase effects on this condition. In isolated pancreatic lobules, pretreatment with recombinant human renalase (rRNLS) blocked zymogen activation caused by cerulein, carbachol, and a bile acid...
October 17, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29040977/gene-microarray-integrated-with-high-throughput-proteomics-for-the-discovery-of-transthyretin-in-rhabdomyolysis-induced-acute-kidney-injury
#19
Ou Li, Xiaodong Geng, Qian Ma, Weiwei Wang, Ran Liu, Zhong Yin, Siyang Wang, Guangyan Cai, Xiangmei Chen, Quan Hong
BACKGROUND/AIMS: Rhabdomyolysis, one of the leading causes of acute kidney injury (AKI), develops after trauma, drug toxicity, infections, burns, and physical exertion. The aim of this study was to investigate differences in gene and protein expression to elucidate the pathogenesis of rhabdomyolysis (RM)-induced AKI. METHODS: In this study, we used glycerol induced renal injury as a model of RM-induced AKI. Affymetrix U133 plus 2.0 microarrays were used to perform gene microarray analysis...
October 18, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29040276/the-impact-of-acute-kidney-injury-on-in-hospital-mortality-in-acute-ischemic-stroke-patients-undergoing-intravenous-thrombolysis
#20
Florica Gadalean, Mihaela Simu, Florina Parv, Ruxandra Vorovenci, Raluca Tudor, Adalbert Schiller, Romulus Timar, Ligia Petrica, Silvia Velciov, Cristina Gluhovschi, Flaviu Bob, Adelina Mihaescu, Bogdan Timar, Goce Spasovski, Viviana Ivan
INTRODUCTION: Acute kidney injury (AKI) increases the risk of death in acute ischemic stroke (AIS) patients. Intravenous thrombolytic therapy (iv. rt-PA) seems to be the most effective treatment for AIS patients. The effects of AKI on iv. rt-PA treated AIS cases is less studied. Our paper addresses this issue. METHODS: 45 consecutive stroke patients treated with iv. rt-PA (median age = 64 years; 29 male) and 59 age and sex matched controls not eligible for iv. rt-PA have been enrolled in our study...
2017: PloS One
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