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AKI Biomarkers

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181 papers 25 to 100 followers
By Isabel Acosta-Ochoa Nephrology senior staff. Valladolid. Spain
Katja M Gist, David S Cooper, Julia Wrona, Sarah Faubel, Christopher Altmann, Zhiqian Gao, Bradley S Marino, Jeffrey Alten, Kristal M Hock, Tomoyuki Mizuno, Alexander A Vinks, Melanie S Joy, Michael F Wempe, Michael R Bennett, Stuart L Goldstein
BACKGROUND: Milrinone, an inotropic agent used ubiquitously in children after cardiac surgery, accumulates in acute kidney injury (AKI). We assessed if urinary AKI biomarkers are predictive of an increase in milrinone concentrations in infants after cardiac surgery. METHODS: Multicenter prospective pilot study of infants undergoing cardiac surgery. Urinary AKI biomarkers were measured in the urine at specific time intervals after cardiopulmonary bypass initiation...
April 2018: Therapeutic Drug Monitoring
Jason H Greenberg, Prasad Devarajan, Heather R Thiessen-Philbrook, Catherine Krawczeski, Chirag R Parikh, Michael Zappitelli
BACKGROUND: We previously reported that children undergoing cardiac surgery are at high risk for long-term chronic kidney disease (CKD) and hypertension, although postoperative acute kidney injury (AKI) is not a risk factor for worse long-term kidney outcomes. We report here our evaluation of renal injury biomarkers 5 years after cardiac surgery to determine whether they are associated with postoperative AKI or long-term CKD and hypertension. METHODS: Children aged 1 month to 18 years old undergoing cardiopulmonary bypass were recruited to this prospective cohort study...
March 6, 2018: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
Li Ning, Zhiguo Li, Dianjun Wei, Haiyan Chen, Chao Yang, Dawei Wu, Yanchun Wang, Jingwei Zhang
Contrast-induced acute kidney injury (CI-AKI) is a serious complication of diagnostic coronary angiograph and percutaneous coronary intervention (PCI). However, the exact pathophysiological mechanisms underlying CI-AKI development are largely unknown. The present study examined whether urinary semaphorin 3A levels predict the development of CI-AKI in patients undergoing PCI. This study enrolled 168 patients with stable angina undergoing elective PCI. Serial urine samples, obtained at baseline and 2, 6, 12, 24, 36, and 48 h post-PCI were analyzed by semaphorin 3A and neutrophil gelatinase-associated lipocalin (NGAL) ELISA kit...
March 1, 2018: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
Bo Wu, Xue Gong, William A Kennedy, James D Brooks
Renal obstruction is a common cause of renal failure in adults and children and is suspected when hydronephrosis is detected on imaging. Since not all cases of hydronephrosis are associated with renal damage, biomarkers are needed to guide intervention to relieve obstruction. We performed gene expression profiling on the kidneys from adult mice over a detailed time course after obstruction and compared these data to a neonatal model of bilateral high grade obstruction induced by conditional deletion of the calcineurin ß1 (Cnb1) gene...
February 28, 2018: American Journal of Physiology. Renal Physiology
Laura Di Leo, Federico Nalesso, Francesco Garzotto, Yun Xie, Bo Yang, Grazia Maria Virzì, Alberto Passannante, Raffaele Bonato, Mariarosa Carta, Davide Giavarina, Dario Gregori, Alessandra Brendolan, Fiorenza Ferrari, Claudio Ronco
BACKGROUND: Acute kidney injury (AKI) diagnosis is based on a rise in serum creatinine and/or fall in urine output. It has been shown that there are patients that fulfill AKI definition but do not have AKI, and there are also patients with evidence of renal injury who do not meet any criteria for AKI. Recently the innovative and emerging proteomic technology has enabled the identification of novel biomarkers that allow improved risk stratification. METHODS: Tissue inhibitor of metalloproteinases-2 (TIMP-2), insulin-like growth factor-binding protein 7 (IGFBP7) were measured to a cohort of 719 consecutive patients admitted to Intensive Care Unit (ICU)...
January 26, 2018: Blood Purification
Lynn Redahan, Patrick T Murray
There is an expanding body of literature regarding the utility of novel biomarkers in drug-induced kidney injury (DIKI) and other forms of acute kidney injury (AKI). The authors could not thoroughly review this topic without referring to and acknowledging this work. Included is a list of additional articles (see Supplementary Reading List) that have been referenced, but not cited within the body of the text. These references have provided data used within this article and have allowed the authors to discuss the epidemiology of DIKI, its classification, the utility of specific biomarkers, and the impact that comorbid illness and medications can have on their levels...
March 2018: Clinical Pharmacology and Therapeutics
Rishabh Singh, Joanna Dodkins, James F Doyle, Lui G Forni
The definition of acute kidney injury (AKI) is now well established and encompasses changes in both the urine output and the serum creatinine (SCr) over time. Many studies to date have concentrated solely on the SCr criteria, as this is relatively easy to monitor, given that accurate urine output is rarely measured outside critical care areas. However, many studies have emphasised the inadequacies of SCr in highlighting potential renal injury in a timely fashion. These limitations reflect not only acute changes in creatinine metabolism in the critically ill but also the kinetics of creatinine generation that may hinder early recognition of AKI...
2018: Contributions to Nephrology
Peter Celec, Barbora Vlková, Lucia Lauková, Janka Bábíčková, Peter Boor
Cell-free DNA (cfDNA) is present in various body fluids and originates mostly from blood cells. In specific conditions, circulating cfDNA might be derived from tumours, donor organs after transplantation or from the foetus during pregnancy. The analysis of cfDNA is mainly used for genetic analyses of the source tissue -tumour, foetus or for the early detection of graft rejection. It might serve also as a nonspecific biomarker of tissue damage in critical care medicine. In kidney diseases, cfDNA increases during haemodialysis and indicates cell damage...
January 18, 2018: Expert Reviews in Molecular Medicine
Braian M Beker, Mateo G Corleto, Cecilia Fieiras, Carlos G Musso
Acute kidney injury (AKI) consists of a rapid renal function decline which usually increases serum urea and creatinine levels. Since kidney injury begins by inducing biological and molecular changes which evolve to cellular damage, biomarkers could be used as tools for monitoring early AKI appearance, and predicting its recovery. Among the main AKI biomarkers the neutrophil gelatinase-associated lipocalin, cystatin C, kidney injury molecule-1, monocyte chemotactic peptide-1, N-acetyl-β-D-glucosaminidase, interleukin-18, liver-type fatty acid-binding protein, netrin-1, cycle arrest markers, endogenous ouabain, selenium-binding protein 1, and BPIFA2 marker, have been described...
January 6, 2018: International Urology and Nephrology
David Marx, Jochen Metzger, Martin Pejchinovski, Ryan Bruce Gil, Maria Frantzi, Agnieszka Latosinska, Iwona Belczacka, Silke Sophie Heinzmann, Holger Husi, Jerome Zoidakis, Matthias Klingele, Stefan Herget-Rosenthal
Acute kidney injury (AKI) is a severe and frequent condition in hospitalized patients. Currently, no efficient therapy of AKI is available. Therefore, efforts focus on early prevention and potentially early initiation of renal replacement therapy to improve the outcome in AKI. The detection of AKI in hospitalized patients implies the need for early, accurate, robust, and easily accessible biomarkers of AKI evolution and outcome prediction because only a narrow window exists to implement the earlier-described measures...
January 2018: Seminars in Nephrology
Karolina Rygasiewicz, Tomasz Hryszko, Andrzej Siemiatkowski, Szymon Brzosko, Alicja Rydzewska-Rosolowska, Beata Naumnik
BACKGROUND: FGF23 proved its value in prognostication of cardiovascular events and mortality among renal patients and general population. Limited data exist whether FGF23 may have any use in prediction of negative outcomes among critically ill patients admitted to intensive care unit (ICU). METHODS: Single center cohort study performed among patients admitted to ICU. The primary exposure was FGF23 plasma concentration measured within 24 h of ICU admission. The primary outcome was incident Acute Kidney Injury (AKI) and in-hospital mortality during the ICU stay...
December 27, 2017: Cytokine
Yan-Fang Zou, Wen Zhang
Acute kidney injury, characterized by sharply decreased renal function, is a common and important complication in hospitalized patients. The pathological mechanism of acute kidney injury is mainly related to immune activation and inflammation. Given the high morbidity and mortality rates of hospitalized patients with acute kidney injury, the identification of biomarkers useful for assessing risk, making an early diagnosis, evaluating the prognosis, and classifying the injury severity is urgently needed. Furthermore, investigation into the development of acute kidney injury and potential therapeutic targets is required...
January 2018: Experimental Biology and Medicine
Su Hooi Teo, Zoltán Huba Endre
Acute kidney injury is common in critically ill patients and portends a significant impact on mortality, progressive chronic kidney disease, and cardiovascular disease and mortality. Though most physicians alter therapy depending on changes in serum creatinine, this often represents delayed intervention. Various AKI biomarkers have been discovered and validated to improve timely detection, differentiation and stratification into risk groups for progressive renal decline, need for renal replacement therapy or death...
September 2017: Best Practice & Research. Clinical Anaesthesiology
Magdalena Krochmal, Joost P Schanstra, Harald Mischak
Due to its close connection with the renal system, urine is considered a valuable source of information in kidney disease research. Peptidomics methods focus on the discovery of endogenous peptides, given their wide range of biological functions and diagnostic and therapeutic potential. Representing a non-invasive and sensitive method, technological prospects of urinary peptidomics should be evaluated in the context of drug discovery and research. Areas covered: This review describes urinary peptidomics with focus on its application in drug research in the field of kidney diseases...
December 19, 2017: Expert Opinion on Drug Discovery
Marlies Ostermann, Peter A McCullough, Lui G Forni, Sean M Bagshaw, Michael Joannidis, Jing Shi, Kianoush Kashani, Patrick M Honore, Lakhmir S Chawla, John A Kellum
OBJECTIVES: Urinary tissue inhibitor of metalloproteinase-2 and insulin-like growth factor binding protein 7 predict the development of acute kidney injury following renal insults of varied aetiology. To aid clinical interpretation, we describe the kinetics of biomarker elevations around an exposure. DESIGN: In an ancillary analysis of the multicenter SAPPHIRE study, we examined the kinetics of the urinary [tissue inhibitor of metalloproteinase-2]•[insulin-like growth factor binding protein 7] in association with exposure to common renal insults (major surgery, IV radiocontrast, vancomycin, nonsteroidal anti-inflammatory drugs, and piperacillin/tazobactam)...
March 2018: Critical Care Medicine
Davut Akin, Sehmus Ozmen, Mehmet Emin Yilmaz
INTRODUCTION: It may be difficult to differentiate acute kidney injury from chronic kidney disease in patients with no past medical reports of kidney function. This study aimed to investigate the role of serum hyaluronic acid (HA), which is known as a marker of fibrosis, in differential diagnosis of kidney failure. MATERIALS AND METHODS: A total of 90 patients (52 women and 38 mne) admitted to our renal unit with uremia for the first time were included. Serum HA level was measured...
November 2017: Iranian Journal of Kidney Diseases
Anne-Lie Ståhl, Karl Johansson, Maria Mossberg, Robin Kahn, Diana Karpman
Extracellular vesicles are cell-derived membrane particles ranging from 30 to 5,000 nm in size, including exosomes, microvesicles, and apoptotic bodies. They are released under physiological conditions, but also upon cellular activation, senescence, and apoptosis. They play an important role in intercellular communication. Their release may also maintain cellular integrity by ridding the cell of damaging substances. This review describes the biogenesis, uptake, and detection of extracellular vesicles in addition to the impact that they have on recipient cells, focusing on mechanisms important in the pathophysiology of kidney diseases, such as thrombosis, angiogenesis, tissue regeneration, immune modulation, and inflammation...
November 27, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
Allison Meisner, Chirag R Parikh, Kathleen F Kerr
Many investigators are interested in combining biomarkers to predict a binary outcome or detect underlying disease. This endeavor is complicated by the fact that many biomarker studies involve data from multiple centers. Depending upon the relationship between center, the biomarkers, and the target of prediction, care must be taken when constructing and evaluating combinations of biomarkers. We introduce a taxonomy to describe the role of center and consider how a biomarker combination should be constructed and evaluated...
January 1, 2017: Statistical Methods in Medical Research
Michael L Merchant, Ilse M Rood, Jeroen K J Deegens, Jon B Klein
Urine is a valuable diagnostic medium and, with the discovery of urinary extracellular vesicles, is viewed as a dynamic bioactive fluid. Extracellular vesicles are lipid-enclosed structures that can be classified into three categories: exosomes, microvesicles (or ectosomes) and apoptotic bodies. This classification is based on the mechanisms by which membrane vesicles are formed: fusion of multivesicular bodies with the plasma membranes (exosomes), budding of vesicles directly from the plasma membrane (microvesicles) or those shed from dying cells (apoptotic bodies)...
December 2017: Nature Reviews. Nephrology
M Connolly, M Kinnin, D Mc Eneaney, I Menown, M J Kurth, J Lamont, N Morgan, M Harbinson
Background: Chronic Kidney Disease (CKD) is a risk factor for contrast induced acute kidney injury (CI-AKI). Contrast angiography in CKD patients is a common procedure. Creatinine is a delayed marker of CI-AKI and delays diagnosis which results in significant morbidity and mortality. Aim: Early diagnosis of CI-AKI requires validated novel biomarkers. Design: A prospective observation study of 301 consecutive CKD patients undergoing coronary angiography was performed...
October 23, 2017: QJM: Monthly Journal of the Association of Physicians
2017-10-28 06:28:05
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