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https://www.readbyqxmd.com/read/29778557/nanotechnological-foundations-of-a-%C3%A2-new%C3%A2-nephrology
#1
M Laura Sorian, Alberto Rodríguez-Benot, Miguel Valcárcel
After contextualising the generic frameworks of nanotechnology and nanomedicine, the 2disciplines are discussed in the field of Nephrology. The potential downside to nanonephrology is the renal clearance of nanoparticles, the use of which is ever-increasing both for nanomedicinal purposes and in nanofoods. The positive impact of nanotechnology in Nephrology is centred on the development of renal nanodiagnostics for basic renal function studies, the early diagnosis of acute kidney injury, reliable and simple follow-up of chronic kidney disease and the improvement of magnetic resonance imaging...
May 16, 2018: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
https://www.readbyqxmd.com/read/29776437/coenzyme-q10-combined-with-trimetazidine-in-the-prevention-of-contrast-induced-nephropathy-in-patients-with-coronary-heart-disease-complicated-with-renal-dysfunction-undergoing-elective-cardiac-catheterization-a-randomized-control-study-and-in-vivo-study
#2
Fei Chen, Fan Liu, Jingchao Lu, Xiuchun Yang, Bing Xiao, Yaqiong Jin, Jie Zhang
BACKGROUND: Contrast-induced nephropathy (CIN) is one of the common hospital-acquired acute renal failures. The purpose of this study was to investigate whether Coenzyme Q10 (CoQ10) and trimetazidine (TMZ) can prevent the occurrence of CIN after elective cardiac catheterization in patients with coronary artery disease complicated with renal dysfunction. METHODS: Consecutive coronary artery disease patients with renal insufficiency scheduled for coronary angiography were enrolled in randomized, paralleled, double-blind, controlled trial...
May 18, 2018: European Journal of Medical Research
https://www.readbyqxmd.com/read/29772311/mid-term-outcomes-of-endovascular-aortic-aneurysm-repair-with-carbon-dioxide-guided-angiography
#3
Yuriko Takeuchi, Noriyasu Morikage, Yutaro Matsuno, Tamami Nakamura, Makoto Samura, Koshiro Ueda, Takasuke Harada, Yoshitaka Ikeda, Kotaro Suehiro, Hiroshi Ito, Kensuke Sakata, Kimikazu Hamano
BACKGROUND: Although iodinated contrast (IC) agents are commonly used in endovascular aneurysm repair (EVAR), perioperative use in patients with renal dysfunction or IC allergies is avoided. Carbon dioxide (CO2 )-guided angiography is a promising alternative. We aimed to evaluate short-term and mid-term outcomes of EVAR using CO2 -guided angiography. METHODS: Three hundred and eighty-one patients who underwent EVAR from January 2012 to September 2016 were retrospectively reviewed and divided into an IC-EVAR group (n=351) and CO2 -EVAR group (n=30)...
May 14, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29771991/progenitor-renin-lineage-cells-are-not-involved-in-the-regeneration-of-glomerular-endothelial-cells-during-experimental-renal-thrombotic-microangiopathy
#4
Leo Ruhnke, Jan Sradnick, Moath Al-Mekhlafi, Michael Gerlach, Florian Gembardt, Bernd Hohenstein, Vladimir T Todorov, Christian Hugo
Endothelial cells (EC) frequently undergo primary or secondary injury during kidney disease such as thrombotic microangiopathy or glomerulonephritis. Renin Lineage Cells (RLCs) serve as a progenitor cell niche after glomerular damage in the adult kidney. However, it is not clear whether RLCs also contribute to endothelial replenishment in the glomerulus following endothelial injury. Therefore, we investigated the role of RLCs as a potential progenitor niche for glomerular endothelial regeneration. We used an inducible tet-on triple-transgenic reporter strain mRen-rtTAm2/LC1/LacZ to pulse-label the renin-producing RLCs in adult mice...
2018: PloS One
https://www.readbyqxmd.com/read/29771701/dynamic-contrast-enhanced-ultrasound-identifies-microcirculatory-alterations-in-sepsis-induced-acute-kidney-injury
#5
Alexandre Lima, Tom van Rooij, Bulent Ergin, Michele Sorelli, Yasin Ince, Patricia A C Specht, Egbert G Mik, Leonardo Bocchi, Klazina Kooiman, Nico de Jong, Can Ince
OBJECTIVES: We developed quantitative methods to analyze microbubble kinetics based on renal contrast-enhanced ultrasound imaging combined with measurements of sublingual microcirculation on a fixed area to quantify early microvascular alterations in sepsis-induced acute kidney injury. DESIGN: Prospective controlled animal experiment study. SETTING: Hospital-affiliated animal research institution. SUBJECTS: Fifteen female pigs...
May 15, 2018: Critical Care Medicine
https://www.readbyqxmd.com/read/29770709/lessons-learned-from-the-preserve-trial
#6
Sasan Partovi, Thomas Trischman, Preet S Kang
The recently published PRESERVE trial is presently the largest and most comprehensive clinical trial comparing commonly applied strategies for prevention of iodinated contrast-induced acute kidney injury in high-risk patients. The fundamental conclusion of the PRESERVE trial is that oral acetylcysteine and intravenous sodium bicarbonate are not superior to simple intravenous hydration with isotonic saline for the prevention of contrast-induced renal sequelae. In this commentary, we discuss the results in the context of selected past major trials, and provide insights into the strengths and potential weaknesses of the PRESERVE trial...
May 17, 2018: British Journal of Radiology
https://www.readbyqxmd.com/read/29760658/high-plasma-exposure-of-statins-associated-with-increased-risk-of-contrast-induced-acute-kidney-injury-in-chinese-patients-with-coronary-artery-disease
#7
Liyun Cai, Xue Bai, Heping Lei, Hong Wu, Yong Liu, Qian Zhu, Shanshan Zhang, Yibin Liu, Qiuxiong Lin, Jiyan Chen, Bin Zhang, Guodong He, Qingshan Geng, Min Huang, Shilong Zhong
The role of statins in reducing the incidence of contrast-induced acute kidney injury (CI-AKI) remains controversial. We sought to evaluate the association between CI-AKI and high plasma exposure of statins in coronary artery disease (CAD) patients undergoing coronary angiography (CAG). This association was first evaluated in 1,219 patients with CAD receiving atorvastatin (AT) therapy and validated in 635 patients receiving rosuvastatin (RST) therapy. The plasma concentrations of statins were quantified using validated UPLC-MS/MS methods and CI-AKI incidence was assessed during the first 48 h postoperatively...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29751980/preserve-the-end-or-the-beginning-of-a-new-era-in-prevention-of-contrast-associated-acute-kidney-injury
#8
EDITORIAL
Richard Solomon
No abstract text is available yet for this article.
May 8, 2018: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/29743906/glomerular-filtration-decrease-after-diagnostic-cardiac-catheterisation-in-children-with-congenital-cardiac-malformation-the-role-of-serum-creatinine-cystatin-c-neutrophil-gelatinase-and-urine-output-monitoring
#9
Marcin Tkaczyk, Daria Tomczyk, Anna Jander, Sebastian Góreczny, Tomasz Moszura, Paweł Dryżek, Wojciech Krajewski, Ewa Głowacka, Agnieszka Wosiak
Introduction: Diagnosis of contrast induced-nephropathy (CIN) by a classic renal biomarker such as creatinine concentration can be delayed because of various factors that can influence this marker. Changes in new biomarkers such as neutrophil-gelatinase associated lipocalin (NGAL) and cystatin C are postulated to be more sensitive for recognizing patients prone to CIN-acute kidney injury (AKI). Aim: To investigate the role of NGAL and cystatin C as early biomarkers in the diagnosis of kidney injury after cardiac catheterisation...
2018: Postępy W Kardiologii Interwencyjnej, Advances in Interventional Cardiology
https://www.readbyqxmd.com/read/29739889/farnesoid-x-receptor-is-essential-for-the-survival-of-renal-medullary-collecting-duct-cells-under-hypertonic-stress
#10
Sujuan Xu, Shizheng Huang, Zhilin Luan, Tingyue Chen, Yuanyi Wei, Miaomiao Xing, Yaqing Li, Chunxiu Du, Bing Wang, Feng Zheng, Nanping Wang, Youfei Guan, Jan-Åke Gustafsson, Xiaoyan Zhang
Hypertonicity in renal medulla is critical for the kidney to produce concentrated urine. Renal medullary cells have to survive high medullary osmolarity during antidiuresis. Previous study reported that farnesoid X receptor (FXR), a nuclear receptor transcription factor activated by endogenous bile acids, increases urine concentrating ability by up-regulating aquaporin 2 expression in medullary collecting duct cells (MCDs). However, whether FXR is also involved in the maintenance of cell survival of MCDs under dehydration condition and hypertonic stress remains largely unknown...
May 8, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29739428/incidence-and-outcomes-of-acute-kidney-injury-in-octogenarians-in-jordan
#11
Ashraf O Oweis, Sameeha A Alshelleh
OBJECTIVE: Improvements in the health care system, resulted in a greater number of geriatric patients diagnosed with acute kidney injury (AKI). We evaluated the incidence and outcome of AKI in octogenarians, as studies in the Middle-East region are few; moreover, treatment approaches, in addition to medical decisions, may require special consideration for advanced age to improve the outcomes. RESULTS: At King Abdullah II teaching and referral hospital, we recruited patients aged 80-90 years who were admitted to the medical floor between January 2010 and December 2013...
May 8, 2018: BMC Research Notes
https://www.readbyqxmd.com/read/29735309/the-elevation-of-circulating-fibroblast-growth-factor-23-without-kidney-disease-does-not-increase-cardiovascular-disease-risk
#12
Eva-Maria Pastor-Arroyo, Nicole Gehring, Christiane Krudewig, Sarah Costantino, Carla Bettoni, Thomas Knöpfel, Sibylle Sabrautzki, Bettina Lorenz-Depiereux, Johanne Pastor, Tim M Strom, Martin Hrabě de Angelis, Giovanni G Camici, Francesco Paneni, Carsten A Wagner, Isabel Rubio-Aliaga
High circulating fibroblast growth factor 23 (FGF23) levels are probably a major risk factor for cardiovascular disease in chronic kidney disease. FGF23 interacts with the receptor FGFR4 in cardiomyocytes inducing left ventricular hypertrophy. Moreover, in the liver FGF23 via FGFR4 increases the risk of inflammation which is also found in chronic kidney disease. In contrast, X-linked hypophosphatemia is characterized by high FGF23 circulating levels due to loss of function mutations of the phosphate-regulating gene with homologies to an endopeptidase on the X chromosome (PHEX), but is not characterized by high cardiovascular morbidity...
May 5, 2018: Kidney International
https://www.readbyqxmd.com/read/29732146/oxidative-stress-and-kidney-injury-in-trans-radial-catheterization
#13
Konstantinos Tsarouhas, Christina Tsitsimpikou, Xrisoula Papantoni, Dimitra Lazaridou, Michael Koutouzis, Savvas Mazzaris, Ramin Rezaee, Charalambos Mamoulakis, Panagiotis Georgoulias, Charitini Nepka, Elias Rentoukas, Zenon Kyriakides, Aristidis Tsatsakis, Demetrios A Spandidos, Demetrios Kouretas
Oxidative stress is linked to coronary artery disease and is a major mechanism in contrast-induced nephropathy. Trans-radial approach in coronary angiography (CA) with minimized peri-procedural bleeding is expected to reduce acute kidney injury incidence. In the present study, oxidative stress patterns observed in radial CA and their associations with early manifestations of kidney injury are described. A total of 20 stable coronary disease patients submitted to CA and 17 sex-matched patients undergoing computed tomography for myoskeletal reasons were enrolled...
May 2018: Biomedical Reports
https://www.readbyqxmd.com/read/29731246/gdf11-induces-kidney-fibrosis-renal-cell-epithelial-to-mesenchymal-transition-and-kidney-dysfunction-and-failure
#14
Marianne Pons, Leonidas G Koniaris, Sharon M Moe, Juan C Gutierrez, Aurora Esquela-Kerscher, Teresa A Zimmers
BACKGROUND: GDF11 modulates embryonic patterning and kidney organogenesis. Herein, we sought to define GDF11 function in the adult kidney and in renal diseases. METHODS: In vitro renal cell lines, genetic, and murine in vivo renal injury models were examined. RESULTS: Among tissues tested, Gdf11 was highest in normal adult mouse kidney. Expression was increased acutely after 5/6 nephrectomy, ischemia-reperfusion injury, kanamycin toxicity, or unilateral ureteric obstruction...
May 3, 2018: Surgery
https://www.readbyqxmd.com/read/29730853/renalguard-system-to-prevent-contrast-induced-acute-kidney-injury-in-japanese-patients-with-renal-dysfunction-respect-kidney-study
#15
Hiromasa Katoh, Tsuyoshi Nozue, Kazuki Horie, Takashi Sozu, Naoto Inoue, Ichiro Michishita
Increasing the urine flow rate (UFR) reduces the toxic effect of contrast media. Use of the RenalGuard system enables the achievement of a high UFR by maintaining intravascular volume and prevents the development of contrast-induced acute kidney injury (CI-AKI). However, the efficacy and safety of RenalGuard system have not yet been evaluated in Japan. This multicenter prospective study evaluated the efficacy and safety of the RenalGuard therapy in preventing CI-AKI development in 60 Japanese patients with renal dysfunction [estimated glomerular filtration rate (eGFR) < 45 mL/min/1...
May 5, 2018: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/29727205/thymosin-%C3%AE-4-a-key-modifier-of-renal-disease
#16
Elisavet Vasilopoulou, Paul R Riley, David A Long
There is an urgent need for new treatments for chronic kidney disease (CKD). Thymosin-β4 is a peptide that reduces inflammation and fibrosis and has the potential to restore endothelial and epithelial cell injury, biological processes involved in the pathophysiology of CKD. Therefore, thymosin-β4 could be a novel therapeutic direction for CKD. Areas covered: Here, we review the current evidence on the actions of thymosin-β4 in the kidney in health and disease. Using transgenic mice, two recent studies have demonstrated that endogenous thymosin-β4 is dispensable for healthy kidneys...
May 4, 2018: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/29720683/characterisation-of-lamp2-deficient-rats-for-potential-new-animal-model-of-danon-disease
#17
Shuoyi Ma, Miao Zhang, Shuai Zhang, Jing Wang, Xia Zhou, Guanya Guo, Lu Wang, Min Wang, Zhengwu Peng, Changcun Guo, Xiaohong Zheng, Xinmin Zhou, Jingbo Wang, Ying Han
Danon disease (DD) is caused by the absence or malfunction of lysosomal-associated membrane protein 2 (LAMP2). Although Lamp2-deficient mice and DD patients have similar characteristics, these mice have clear limitations and are clinically inconsistent. The aim of our paper is to outline the characteristics of Lamp2-deficient rats and to contrast this model with currently available DD mouse models. The baseline levels of some serum enzymes were elevated in Lamp2y/- rats along with hypercholesterolemia and hyperglycaemia at 8 weeks...
May 2, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29713148/association-of-prealbumin-levels-with-contrast-induced-acute-kidney-injury-in-elderly-patients-with-elective-percutaneous-coronary-intervention
#18
Zhe-Bin You, Kai-Yang Lin, Wei-Ping Zheng, Chun-Jin Lin, Fan Lin, Tai-Lin Guo, Peng-Li Zhu, Yan-Song Guo
Purpose: Inflammatory factors play a critical role in contrast-induced acute kidney injury (CI-AKI). Prealbumin, a nutritional and inflammatory indicator, is a well-established predictor of short- and long-term outcomes in numerous clinical conditions. The current study investigated the association of pre-procedural prealbumin levels with CI-AKI and long-term outcomes in geriatric patients after elective percutaneous coronary intervention (PCI). Patients and methods: A total of 558 patients aged≥75 years, who underwent elective PCI between January 2012 and December 2015, were selected for the current study...
2018: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/29706252/gadolinium-based-contrast-agents-in-kidney-disease-comprehensive-review-and-clinical-practice-guideline-issued-by-the-canadian-association-of-radiologists
#19
REVIEW
Nicola Schieda, Jason I Blaichman, Andreu F Costa, Rafael Glikstein, Casey Hurrell, Matthew James, Pejman Jabehdar Maralani, Wael Shabana, An Tang, Anne Tsampalieros, Christian van der Pol, Swapnil Hiremath
Use of gadolinium-based contrast agents (GBCAs) in renal impairment is controversial, with physician and patient apprehension in acute kidney injury (AKI), chronic kidney disease (CKD), and dialysis because of concerns regarding nephrogenic systemic fibrosis (NSF). The position that GBCAs are absolutely contraindicated in AKI, CKD stage 4 or 5 (estimated glomerular filtration rate [eGFR] <30 mL/min/1.73 m2 ) and dialysis-dependent patients is outdated, and may limit access to clinically necessary contrast-enhanced MRI examinations...
May 2018: Canadian Association of Radiologists Journal, Journal L'Association Canadienne des Radiologistes
https://www.readbyqxmd.com/read/29705804/removal-of-procalcitonin-and-selected-cytokines-during-continuous-veno-venous-hemodialysis-using-high-cutoff-hemofilters-in-patients-with-sepsis-and-acute-kidney-injury
#20
Grzegorz Kade, Sławomir Literacki, Agnieszka Rzeszotarska, Stanisław Niemczyk, Arkadiusz Lubas
INTRODUCTION: The purpose of this study was to evaluate the impact of continuous veno-venous hemodialysis (CVVHD) using high cutoff (HCO) hemofilters on the removal of procalcitonin (PCT), and other inflammatory markers in the treatment of patients during septic shock with acute kidney injury (AKI). MATERIALS AND METHODS: Thirty-six patients with septic shock and AKI were included in the study. Before and after the 24-h HCO-CVVHD, PCT, native C-reactive protein (CRP) and cytokines (interleukin-1β, interleukin-6, interleukin-12, interleukin-17, tumor necrosis factor-α) in serum and effluent were assessed...
April 27, 2018: Blood Purification
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