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https://www.readbyqxmd.com/read/29140147/sprint-running-performance-and-technique-changes-in-athletes-during-periodized-training-an-elite-training-group-case-study
#1
Ian N Bezodis, David G Kerwin, Stephen-Mark Cooper, Aki I T Salo
PURPOSE: To understand how training periodization influences sprint performance and key step characteristics over an extended training period in an elite sprint training group. METHODS: Four sprinters were studied during five months of training. Step velocities, step lengths and step frequencies were measured from video of the maximum velocity phase of training sprints. Bootstrapped mean values were calculated for each athlete for each session and 139 within-athlete, between-session comparisons were made with a repeated measures ANOVA...
November 15, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29131132/points-of-concern-in-post-acute-kidney-injury-management
#2
Jill Vanmassenhove, Raymond Vanholder, Norbert Lameire
The incidence of acute kidney injury (AKI) will in the future remain high, partly due to an increase in comorbidities and other AKI favoring factors such as the rise in high-risk diagnostic and therapeutic interventions. AKI has emerged as a major public health concern with high human and financial costs. It has recently been demonstrated that patients surviving an AKI episode show increased all-cause mortality, chronic kidney disease (CKD), ESRD, cardiovascular events, and reduced quality of life. Although it is important to acknowledge that, after an AKI episode, the risk of dying by far exceeds the risk of developing incident or progressive CKD and/or entering a maintenance renal replacement therapy (RRT) program, currently only a minority of patients are referred for renal follow-up, even after AKI-requiring RRT...
November 2, 2017: Nephron
https://www.readbyqxmd.com/read/29127739/renal-haemodynamics-and-oxygenation-during-and-after-cardiac-surgery-and-cardiopulmonary-bypass
#3
REVIEW
Roger G Evans, Yugeesh R Lankadeva, Andrew D Cochrane, Bruno Marino, Naoya Iguchi, Michael Z L Zhu, Sally G Hood, Julian A Smith, Rinaldo Bellomo, Bruce S Gardiner, Chang-Joon Lee, David W Smith, Clive N May
Acute kidney injury (AKI) is a common complication following cardiac surgery performed on cardiopulmonary bypass (CPB) and has important implications for prognosis. The aetiology of cardiac surgery-associated AKI is complex, but renal hypoxia, particularly in the medulla, is thought to play at least some role. There is strong evidence from studies in experimental animals, clinical observations and computational models, that medullary ischaemia and hypoxia occurs during CPB. There are no validated methods to monitor or improve renal oxygenation during CPB, and thus possibly decrease the risk of AKI...
November 11, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/29118018/th17-cells-contribute-to-pulmonary-fibrosis-and-inflammation-during-chronic-kidney-disease-progression-following-acute-ischemia
#4
Purvi Mehrotra, Jason A Collett, Susan J Gunst, David P Basile
Acute kidney injury (AKI) is associated with high mortality rates and predisposes development of chronic kidney disease (CKD). Distant organ damage, particularly in the lung, may contribute to mortality in AKI patients. Animal models of AKI demonstrate an increase in pulmonary infiltration of lymphocytes and reveal an acute compromise of lung function, but the chronic effects of AKI on pulmonary inflammation are unknown. We hypothesized that in response to renal I/R, there is a persistent systemic increase in Th17 cells with potential effects on pulmonary structure and function...
November 8, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/29111542/a-call-to-action-to-develop-integrated-curricula-in-cardiorenal-medicine
#5
Claudio Ronco, Federico Ronco, Peter A McCullough
With the adoption of the new definition and classification of cardiorenal syndrome (CRS) and its relevant subtypes, much attention has been placed on elucidating the mechanisms of heart and kidney interactions. The pathophysiologic pathways are of great interest by which acute heart failure may result in acute kidney injury (AKI; type 1), chronic heart failure accelerates the progression of chronic kidney disease (CKD; type 2), AKI provokes cardiac events (type 3), and CKD increases the risk and severity of cardiovascular disease (type 4)...
2017: Reviews in Cardiovascular Medicine
https://www.readbyqxmd.com/read/29104728/oxidative-stress-and-acute-kidney-injury-in-critical-illness-pathophysiologic-mechanisms-biomarkers-interventions-and-future-perspectives
#6
REVIEW
Paraskevi Pavlakou, Vassilios Liakopoulos, Theodoros Eleftheriadis, Michael Mitsis, Evangelia Dounousi
Acute kidney injury (AKI) is a multifactorial entity that occurs in a variety of clinical settings. Although AKI is not a usual reason for intensive care unit (ICU) admission, it often complicates critically ill patients' clinical course requiring renal replacement therapy progressing sometimes to end-stage renal disease and increasing mortality. The causes of AKI in the group of ICU patients are further complicated from damaged metabolic state, systemic inflammation, sepsis, and hemodynamic dysregulations, leading to an imbalance that generates oxidative stress response...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29100016/urinary-versus-plasma-neutrophil-gelatinase-associated-lipocalin-ngal-as-a-predictor-of-mortality-for-acute-kidney-injury-in-intensive-care-unit-patients
#7
Ata Mahmoodpoor, Hadi Hamishehkar, Vahid Fattahi, Sarvin Sanaie, Pradeep Arora, Nader D Nader
OBJECTIVE: To examine urinary and plasma neutrophil gelatinase-associated lipocalin (NGAL) levels in predicting ICU mortality. DESIGN: Prospective observational. SETTING: University Critical Care setting. PARTICIPANTS: 50 patients with acute kidney injury (AKI). INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: Serial urinary and plasma concentrations of NGAL were measured...
October 26, 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/29065398/a-call-to-action-to-develop-integrated-curricula-in-cardiorenal-medicine
#8
Claudio Ronco, Federico Ronco, Peter A McCullough
With the adoption of the new definition and classification of cardiorenal syndrome (CRS) and its relevant subtypes, much attention has been placed on elucidating the mechanisms of heart and kidney interactions. Of great interest are the pathophysiological pathways by which acute heart failure may result in acute kidney injury (AKI; type 1), chronic heart failure accelerating the progression of chronic kidney disease (CKD; type 2), AKI provoking cardiac events (type 3), and CKD increasing the risk and severity of cardiovascular disease (type 4)...
October 25, 2017: Blood Purification
https://www.readbyqxmd.com/read/29061334/neutrophil-peptidyl-arginine-deiminase-4-has-a-pivotal-role-in-ischemia-reperfusion-induced-acute%C3%A2-kidney-injury
#9
Wesley M Raup-Konsavage, Yanming Wang, Wei Wei Wang, Denis Feliers, Hong Ruan, W Brian Reeves
Ischemia/reperfusion is a common cause of acute kidney injury (AKI). However, mechanisms underlying the sudden loss in kidney function and tissue injury remain to be fully elucidated. Here, we investigated the role of peptidyl arginine deiminase-4 (PAD4), which converts arginine to citrulline and plays a role in epigenetic regulation and inflammation, in renal ischemia/reperfusion injury. PAD4 expression was highly induced in infiltrating leukocytes 24 hours following renal ischemia and reperfusion. This induction was accompanied by citrullination of histone H3 and formation of neutrophil extracellular traps in kidneys of wild-type mice...
October 20, 2017: Kidney International
https://www.readbyqxmd.com/read/29056166/long-term-adverse-events-associated-with-acute-kidney-injury
#10
Manisha Singh, Nithin Karakala, Sudhir V Shah
Acute kidney injury (AKI) occurs in approximately 10% to 15% of hospital-admitted patients and is associated with in-hospital mortality of 50% in patients requiring renal replacement therapy. Recently, multiple observational studies have demonstrated that patients who survive AKI have significant long-term consequences including cardiovascular events, progression to advanced-stage chronic kidney disease (CKD), and mortality. A direct link between AKI and CKD is provided by studies that demonstrate that some patients with normal renal function who develop AKI requiring dialysis never recover...
November 2017: Journal of Renal Nutrition
https://www.readbyqxmd.com/read/29054680/phosphorylation-of-protein-phosphatase-2a-facilitated-an-early-stage-of-chemical-carcinogenesis
#11
Yuji Ishii, Ken Kuroda, Kohei Matsushita, Yuh Yokoo, Shinji Takasu, Aki Kijima, Takehiko Nohmi, Kumiko Ogawa, Takashi Umemura
Protein phosphatase 2A (PP2A) is a serine-threonine phosphatase that regulates cell signaling pathways. Its inactivation is correlated with tumor malignancy, possibly due to the effects on cell differentiation and malignant cell transformation. Therefore, it has been noted that PP2A could be a promising target for cancer therapy. In our previous study of the hepatocarcinogen estragole (ES), cell proliferation may be required to convert ES-specific DNA adducts to mutations. To explore the trigger for cell proliferation, gpt delta rats were administered ES by gavage at doses of 3, 30 and 300mg/kg/day for 4weeks...
October 17, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/29050313/adipose-derived-mesenchymal-stem-cells-employed-exosomes-to-attenuate-aki-ckd-transition-through-tubular-epithelial-cell-dependent-sox9-activation
#12
Fengming Zhu, Octavia L S Chong Lee Shin, Guangchang Pei, Zhizhi Hu, Juan Yang, Han Zhu, Meng Wang, Jingyi Mou, Jie Sun, Yuxi Wang, Qian Yang, Zhi Zhao, Huzi Xu, Hui Gao, Weiqi Yao, Xiao Luo, Wenhui Liao, Gang Xu, Rui Zeng, Ying Yao
Acute kidney injury (AKI) predisposes patients to an increased risk into progressive chronic kidney disease (CKD), however effective treatments are still elusive. This study aimed to investigate the therapeutic efficacy of human adipose-derived MSCs (hAD-MSCs) in the prevention of AKI-CKD transition, and illuminate the role of Sox9, a vital transcription factor in the development of kidney, in this process. C57BL/6 mice were subjected to unilateral renal ischemia/reperfusion (I/R) with or without hAD-MSC treatment...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29050002/urinary-erythrocyte-derived-mirnas-emerging-role-in-iga-nephropathy
#13
Zhi-Yu Duan, Guang-Yan Cai, Ji-Jun Li, Ru Bu, Xiang-Mei Chen
Hematuria is one of the basic clinical manifestations of IgA nephropathy (IgAN). Isolated microscopic hematuria or microscopic hematuria combined with proteinuria is risk factor for the long-term prognosis of IgAN. Current evidence of the consequences of glomerular hematuria rests on insights from basic research on the molecular mechanisms of hemoglobin and related reactive oxygen species-induced tubular injury as well as on the clinical evidence of macroscopic hematuria-associated acute kidney injury (AKI) in IgAN...
October 19, 2017: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/29043141/antineutrophil-cytoplasmic-antibody-positive-pauci-immune-glomerulonephritis-associated-with-mantle-cell-lymphoma
#14
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/29027072/outcomes-of-acute-kidney-injury-in-a-nephrology-ward
#15
Ana R Fernandes, Márcio S R Viegas, Elsa Q Soares, Sofia S Coelho, Patricia Valério, José C Barreto, José M Vinhas
Acute kidney injury (AKI) is a global problem which predicts immediate and long-term adverse outcomes. We evaluated the AKI progression to end-stage renal disease, as well as the mortality associated with AKI and the in-hospital readmission rate because of a cardiovascular event in AKI patients admitted in a nephrology ward. A 5-year retrospective study was set in a nephrology department, with a follow-up period of up to 8 years. In a total of 191 patients, mean age was 73.83 ± 12.49 years, and 137 (71...
December 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/29025786/disparity-between-nephrologists-opinions-and-contemporary-practices-for-community-follow-up-after-aki-hospitalization
#16
Divya J Karsanji, Neesh Pannu, Braden J Manns, Brenda R Hemmelgarn, Zhi Tan, Kailash Jindal, Nairne Scott-Douglas, Matthew T James
BACKGROUND AND OBJECTIVES: Recent guidelines suggest that patients should be evaluated after AKI for resolution versus progression of CKD. There is uncertainty as to the role of nephrologists in this process. The objective of this study was to compare the follow-up recommendations from nephrologists with contemporary processes of care for varying scenarios of patients hospitalized with AKI. DESIGN, SETTING PARTICIPANTS, & MEASUREMENTS: We surveyed Canadian nephrologists using a series of clinical vignettes of patients hospitalized with severe AKI and asked them to rank their likelihood of recommending follow-up for each patient after hospital discharge...
November 7, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/29025142/community-acquired-acute-kidney-injury-findings-from-a-large-population-cohort
#17
J Holmes, J Geen, B Phillips, J D Williams, A O Phillips
Background: The extent of patient contact with medical services prior to development of community acquired-acute kidney injury (CA-AKI)is unknown. Aim: We examined the relationship between incident CA-AKI alerts, previous contact with hospital or primary care and clinical outcomes. Design: A prospective national cohort study of all electronic AKIalerts representing adult CA-AKI. Methods: Data were collected for all cases of adult (≥18 years of age) CA-AKI in Wales between 1 November 2013 and 31 January 2017...
July 21, 2017: QJM: Monthly Journal of the Association of Physicians
https://www.readbyqxmd.com/read/29023315/biomarkers-of-drug-induced-kidney-injury
#18
Lynn Redahan, Patrick T Murray
PURPOSE OF REVIEW: Drug-induced kidney injury (DIKI) is an important and potentially modifiable cause of acute kidney injury (AKI). The reliance on traditional markers of kidney injury to diagnose DIKI impedes early detection. Biomarkers of DIKI that facilitate early diagnosis and the identification of high-risk patients are essential to ameliorate the clinical burden of this complication. RECENT FINDINGS: Recent progress in this area supports the potential utility of several biomarkers for the diagnosis of DIKI, for the prediction of outcomes and also for monitoring responses to potential nephrotoxic or beneficial therapies...
December 2017: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/29022913/mbd2-upregulates-mir-301a-5p-to-induce-kidney-cell-apoptosis-during-vancomycin-induced-aki
#19
Juan Wang, Huiling Li, Shuangfa Qiu, Zheng Dong, Xudong Xiang, Dongshan Zhang
Despite DNA methylation occurred in acute kidney injury (AKI), how it influenced progression of AKI remains unclear. Methyl-CpG-binding domain protein 2 (MBD2), a protein readers of methylation, was used to analyze the impact of DNA methylation on vancomycin (VAN)-induced AKI. Here, in cultured human kidney tubular epithelial cells (HK-2), we show that knockdown of MBD2 by siRNA attenuated VAN-induced apoptosis, caspase activity, and the expression of BAX and cleaved caspase 3. Interestingly, knockdown of MBD2 by siRNA was associated with the suppression of miR-301a-5p...
October 12, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28984775/clinicopathological-features-of-progressive-renal-involvement-in-tafro-syndrome-a-case-report-and-literature-review
#20
REVIEW
Mari Tanaka, Hiraku Tsujimoto, Kojiro Yamamoto, Saeko Shimoda, Kazumasa Oka, Hiroya Takeoka
RATIONALE: TAFRO syndrome is a systemic inflammatory disease characterized by a constellation of symptoms: Thrombocytopenia, Anasarca, MyeloFibrosis, Renal dysfunction, and Organomegaly. Progressive renal insufficiency is a predominant symptom; however, the mechanism of acute kidney injury (AKI) remains unclear, probably because severe thrombocytopenia prevents kidney biopsy. We report a rare case of TAFRO syndrome with histologically confirmed renal involvement. PATIENTS CONCERNS: A 70-year-old man developed fever, anasarca, AKI, thrombocytopenia, and hepatosplenomegaly...
October 2017: Medicine (Baltimore)
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