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AKI CKD Transition

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32 papers 0 to 25 followers
By Isabel Acosta-Ochoa Nephrology senior staff. Valladolid. Spain
https://www.readbyqxmd.com/read/27817055/hypoalbuminemia-a-risk-factor-for-acute-kidney-injury-development-and-progression-to-chronic-kidney-disease-in-critically-ill-patients
#1
Min Shao, Shengyu Wang, Praveen Kolumam Parameswaran
PURPOSE: The increased likelihood of poor outcomes in critically ill patients with hypoalbuminemia is well recognized. However, hypoalbuminemia remains poorly defined as an independent predictor of acute kidney injury (AKI) and stage 4 chronic kidney diseases (CKD4). The aim of this study was to assess the role of hypoalbuminemia as an independent risk factor for AKI and CKD4 in critically ill patients. DESIGN: A retrospective cohort study. SETTING: General intensive care unit (ICU) at Anhui Provincial Hospital, PR China...
November 5, 2016: International Urology and Nephrology
https://www.readbyqxmd.com/read/27755064/rapid-occurrence-of-chronic-kidney-disease-in-patients-experiencing-reversible-acute-kidney-injury-after-cardiac-surgery
#2
David Legouis, Pierre Galichon, Aurélien Bataille, Sylvie Chevret, Sophie Provenchère, Anne Boutten, Dimitrios Buklas, Jean-Luc Fellahi, Jean-Luc Hanouz, Alexandre Hertig
BACKGROUND: There is recent evidence to show that patients suffering from acute kidney injury are at increased risk of developing chronic kidney disease despite the fact that surviving tubular epithelial cells have the capacity to fully regenerate renal tubules and restore renal function within days or weeks. The aim of the study was to investigate the impact of acute kidney injury on de novo chronic kidney disease. METHODS: The authors conducted a retrospective population-based cohort study of patients initially free from chronic kidney disease who were scheduled for elective cardiac surgery with cardiopulmonary bypass and who developed an episode of acute kidney injury from which they recovered...
October 17, 2016: Anesthesiology
https://www.readbyqxmd.com/read/27692563/low-dose-hydralazine-prevents-fibrosis-in-a-murine-model-of-acute-kidney-injury-to-chronic-kidney-disease-progression
#3
Björn Tampe, Ulrike Steinle, Désirée Tampe, Julienne L Carstens, Peter Korsten, Elisabeth M Zeisberg, Gerhard A Müller, Raghu Kalluri, Michael Zeisberg
Acute kidney injury (AKI) and progressive chronic kidney disease (CKD) are intrinsically tied syndromes. In this regard, the acutely injured kidney often does not achieve its full regenerative capacity and AKI directly transitions into progressive CKD associated with tubulointerstitial fibrosis. Underlying mechanisms of such AKI-to-CKD progression are still incompletely understood and specific therapeutic interventions are still elusive. Because epigenetic modifications play a role in maintaining tissue fibrosis, we used a murine model of ischemia-reperfusion injury to determine whether aberrant promoter methylation of RASAL1 contributes causally to the switch between physiological regeneration and tubulointerstitial fibrogenesis, a hallmark of AKI-to-CKD progression...
September 27, 2016: Kidney International
https://www.readbyqxmd.com/read/27677327/losartan-reduces-ensuing-chronic-kidney-disease-and-mortality-after-acute-kidney-injury
#4
Shun-Yang Cheng, Yu-Hsiang Chou, Fang-Ling Liao, Chi-Chun Lin, Fan-Chi Chang, Chia-Hao Liu, Tao-Min Huang, Chun-Fu Lai, Yu-Feng Lin, Vin-Cent Wu, Tzong-Shinn Chu, Ming-Shiou Wu, Shuei-Liong Lin
Acute kidney injury (AKI) is an important risk factor for incident chronic kidney disease (CKD). Clinical studies disclose that ensuing CKD progresses after functional recovery from AKI, but the underlying mechanisms remain illusive. Using a murine model representing AKI-CKD continuum, we show angiotensin II type 1a (AT1a) receptor signaling as one of the underlying mechanisms. Male adult CD-1 mice presented severe AKI with 20% mortality within 2 weeks after right nephrectomy and left renal ischemia-reperfusion injury...
September 28, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27658322/the-risk-of-chronic-kidney-disease-and-mortality-are%C3%A2-increased-after-community-acquired-acute-kidney-injury
#5
Karina Soto, Pedro Campos, Iola Pinto, Bruno Rodrigues, Francisca Frade, Ana Luísa Papoila, Prasad Devarajan
We investigated whether community-acquired acute kidney injury encountered in a tertiary hospital emergency department setting increases the risk of chronic kidney disease (CKD) and mortality, and whether plasma biomarkers could improve the prediction of those adverse outcomes. In a prospective cohort study, we enrolled 616 patients at admission to the emergency department and followed them for a median of 62.1 months. Within this cohort, 130 patients were adjudicated as having acute kidney injury, 159 transient azotemia, 15 stable CKD, and 312 normal renal function...
November 2016: Kidney International
https://www.readbyqxmd.com/read/27512298/changing-picture-of-acute-kidney-injury-in-pregnancy-study-of-259-cases-over-a-period-of-33-years
#6
J Prakash, P Pant, S Prakash, M Sivasankar, R Vohra, P K Doley, L K Pandey, U Singh
The incidence of acute kidney injury (AKI) in pregnancy is declining in developing countries but still remains a major cause of maternal and fetal morbidity and mortality. The aim of the study was to analyze the changing trends in pregnancy related AKI (PR-AKI) over a period of thirty-three years. Clinical characteristics of PR-AKI with respect to incidence, etiology and fetal and maternal outcomes were compared in three study periods, namely 1982-1991,1992-2002 and 2003-2014. The incidence of PR-AKI decreased to 10...
July 2016: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/27550923/progression-of-chronic-kidney-disease-after-acute-kidney-injury-role-of-self-perpetuating-versus-hemodynamic-induced-fibrosis
#7
Maria Picken, Jianrui Long, Geoffrey A Williamson, Aaron J Polichnowski
The relative contribution of self-perpetuating versus hemodynamic-induced fibrosis to the progression of chronic kidney disease (CKD) after acute kidney injury (AKI) is unclear. In the present study, male Sprague-Dawley rats underwent right uninephrectomy and were instrumented with a blood pressure radiotelemeter. Two weeks later, separate groups of rats were subjected to 40 minutes renal ischemia-reperfusion or sham surgery and followed up for 4 or 16 weeks to determine the extent to which glomerulosclerosis and tubulointerstitial fibrosis as a result of the AKI-CKD transition (ie, at 4 weeks post AKI) change over time during the progression of CKD (ie, at 16 weeks post AKI)...
October 2016: Hypertension
https://www.readbyqxmd.com/read/27475659/the-role-of-acute-kidney-injury-in-chronic-kidney-disease
#8
REVIEW
Raymond K Hsu, Chi-Yuan Hsu
There is increasing recognition that acute kidney injury (AKI) and chronic kidney disease (CKD) are closely linked and likely promote one another. Underlying CKD now is recognized as a clear risk factor for AKI because both decreased glomerular filtration rate and increased proteinuria have been shown to be associated strongly with AKI. A growing body of literature also provides evidence that AKI accelerates the progression of CKD. Individuals who suffered dialysis-requiring AKI are particularly vulnerable to worse long-term renal outcomes, including end-stage renal disease...
July 2016: Seminars in Nephrology
https://www.readbyqxmd.com/read/27438710/a-mechanistic-link-between-renal-ischemia-and-fibrosis
#9
Tetsuhiro Tanaka
Renal fibrosis is characterized by tubular cell atrophy and accumulation of extracellular matrix. Fibroblast activation becomes evident in areas surrounding atrophic tubules, with rarefaction of peritubular capillaries. Tubulointerstitial hypoxia is the final common pathway in progressive kidney disease. Hypoxia suppresses tubular epithelial growth and leads to failure of remodeling by facilitating dedifferentiation and apoptosis. Profibrotic factors such as transforming growth factor-β (TGF-β) mediate fibroblast activation, and recruited leukocytes, which appear in hypoxic areas, contribute to fibrosis...
July 20, 2016: Medical Molecular Morphology
https://www.readbyqxmd.com/read/27429539/progression-of-chronic-kidney-disease-after-acute-kidney-injury
#10
Prasad Devarajan, John Lynn Jefferies
The incidence of chronic kidney disease (CKD) in children and adults is increasing. Cardiologists have become indispensable members of the care provider team for children with CKD. This is partly due to the high incidence of CKD in children and adults with congenital heart disease, with current estimates of 30-50%. In addition, the high incidence of acute kidney injury (AKI) due to cardiac dysfunction or following pediatric cardiac surgery that may progress to CKD is also well documented. It is now apparent that AKI and CKD are uniquely intertwined as interconnected syndromes...
June 2016: Progress in Pediatric Cardiology
https://www.readbyqxmd.com/read/27398799/insights-into-the-mechanisms-of-the-acute-kidney-injury-to-chronic-kidney-disease-continuum
#11
Koji Takaori, Motoko Yanagita
Acute kidney injury (AKI) is an increasingly common clinical problem with significant impact on long-term patient outcome. Recent clinical trials demonstrate that AKI is closely related to the progression of chronic kidney disease (CKD) and end-stage renal disease, though the precise mechanisms linking AKI to CKD remain unclear. While inflammation, microvascular rarefaction and hypoxia are involved in the AKI-to-CKD continuum, proximal tubule injury seems to play an important role in the progression of CKD...
July 12, 2016: Nephron
https://www.readbyqxmd.com/read/27270990/inhibition-of-microtubule-dynamics-impedes-repair-of-kidney-ischemia-reperfusion-injury-and-increases-fibrosis
#12
Sang Jun Han, Ji-Hyeon Kim, Jee In Kim, Kwon Moo Park
The microtubule cytoskeleton is composed of α-tubulin and β-tubulin heterodimers, and it serves to regulate the shape, motility, and division of a cell. Post-translational modifications including acetylation are closely associated with the functional aspects of the microtubule, involving in a number of pathological diseases. However, the role of microtubule acetylation in acute kidney injury (AKI) and progression of AKI to chronic kidney disease have yet to be understood. In this study, ischemia/reperfusion (I/R), a major cause of AKI, resulted in deacetylation of the microtubules with a decrease in α-tubulin acetyltransferase 1 (α-TAT1)...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27238156/tubular-transport-in-acute-kidney-injury-relevance-for-diagnosis-prognosis-and-intervention
#13
Volker Vallon
The clinical diagnosis and recovery of acute kidney injury (AKI) are mainly based on the rapid decline of glomerular filtration rate (GFR) and its subsequent recovery. The factors that determine kidney recovery and reduce the risk of subsequent progression to chronic kidney disease (CKD), however, are poorly understood. Thus, there is a need to better define the magnitude and time pattern of changes in kidney function during AKI and its recovery that go beyond GFR. Tubular transport regulates body homeostasis and the associated transport work is a primary determinant of the kidneys' energy needs...
2016: Nephron
https://www.readbyqxmd.com/read/27234568/regenerative-medicine-in-kidney-disease
#14
REVIEW
Melissa H Little, Pamela Kairath
The treatment of renal failure has changed little in decades. Organ transplantation and dialysis continue to represent the only therapeutic options available. However, decades of fundamental research into the response of the kidney to acute injury and the processes driving progression to chronic kidney disease are beginning to open doors to new options. Similarly, continued investigations into the cellular and molecular basis of normal kidney development, together with major advances in stem cell biology, are now delivering options in regenerative medicine not possible as recently as a decade ago...
August 2016: Kidney International
https://www.readbyqxmd.com/read/27194714/the-proximal-tubule-is-the-primary-target-of-injury-and-progression-of-kidney-disease-role-of-the-glomerulotubular-junction
#15
REVIEW
Robert L Chevalier
There is an alarming global increase in the incidence of end-stage kidney disease, for which early biomarkers and effective treatment options are lacking. Largely based on the histology of the end-stage kidney and on the model of unilateral ureteral obstruction, current investigation is focused on the pathogenesis of renal interstitial fibrosis as a central mechanism in the progression of chronic kidney disease (CKD). It is now recognized that cumulative episodes of acute kidney injury (AKI) can lead to CKD, and, conversely, CKD is a risk factor for AKI...
July 1, 2016: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/27113695/delayed-consequences-of-acute-kidney-injury
#16
REVIEW
Sharidan K Parr, Edward D Siew
Acute kidney injury (AKI) is an increasingly common complication of hospitalization and acute illness. Experimental data indicate that AKI may cause permanent kidney damage through tubulointerstitial fibrosis and progressive nephron loss, while also lowering the threshold for subsequent injury. Furthermore, preclinical data suggest that AKI may also cause distant organ dysfunction. The extension of these findings to human studies suggests long-term consequences of AKI including, but not limited to recurrent AKI, progressive kidney disease, elevated blood pressure, cardiovascular events, and mortality...
May 2016: Advances in Chronic Kidney Disease
https://www.readbyqxmd.com/read/27091012/kidney-related-outcomes-after-hospital-associated-acute-kidney-injury-even-the-mildest-episodes-count
#17
EDITORIAL
Ghassan Bandak, Morgan E Grams
No abstract text is available yet for this article.
May 2016: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/27028054/increase-in-urinary-markers-during-the-acute-phase-reflects-the-degree-of-chronic-tubulointerstitial-injury-after-ischemia-reperfusion-renal-injury
#18
Mikako Hisamichi, Atsuko Kamijo-Ikemori, Takeshi Sugaya, Daisuke Ichikawa, Seiko Hoshino, Kazuaki Hirata, Kenjiro Kimura, Yugo Shibagaki
CONTEXT: Acute kidney injury (AKI) could lead to progressive chronic kidney disease (CKD). OBJECTIVES: To demonstrate that urinary markers in AKI are associated with the degree of persistent renal injury. MATERIAL AND METHODS: Human L-FABP chromosomal transgenic (Tg) mice were subjected to ischemia-reperfusion (I/R) clamping renal pedicle for 20 min or 30 min. Kidneys were obtained at one and 40 days after I/R. RESULTS: Urinary L-FABP, NGAL, Kim-1 and albumin levels increased during the acute phase and were significantly correlated with the degree of tubulointerstitial fibrosis during the chronic phase...
March 30, 2016: Biomarkers: Biochemical Indicators of Exposure, Response, and Susceptibility to Chemicals
https://www.readbyqxmd.com/read/26972942/-mechanism-of-and-therapy-for-kidney-fibrosis
#19
REVIEW
Akihiro Kuma, Masahito Tamura, Yutaka Otsuji
Fibrosis occurs in systemic tissues other than the brain and finally induces dysfunction of the fibrotic organ. Kidney fibrosis is related to scarring after acute kidney injury and the progression of chronic kidney disease. Kidney function decreases with the progression of kidney fibrosis. As fibrotic tissue cannot return to its original status, advanced kidney fibrosis requires the administration of dialysis or kidney transplantation. Thus, elucidation the mechanism of kidney fibrosis is an important research theme...
March 1, 2016: Journal of UOEH
https://www.readbyqxmd.com/read/26970941/recovery-from-acute-kidney-injury-and-ckd-following-heart-transplantation-in-children-adolescents-and-young-adults-a-retrospective-cohort-study
#20
Seth A Hollander, Maria E Montez-Rath, David M Axelrod, Catherine D Krawczeski, Lindsay J May, Katsuhide Maeda, David N Rosenthal, Scott M Sutherland
BACKGROUND: Acute kidney injury (AKI) is common in children following surgery for congenital heart disease and has been associated with poor long-term kidney outcomes. Children undergoing heart transplantation may be at increased risk for the development of both AKI and chronic kidney disease (CKD). This study examines AKI rates in children, adolescents, and young adults after heart transplantation and analyzes the relationship between AKI and CKD in this population. STUDY DESIGN: Retrospective cohort study...
August 2016: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
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