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aki progression

Keigo Tsushida, Katsuyuki Tanabe, Kana Masuda, Satoshi Tanimura, Hiromasa Miyake, Yuka Arata, Hitoshi Sugiyama, Jun Wada
Acute kidney injury (AKI) has been associated with not only higher in-hospital mortality but also the subsequent development of chronic kidney disease (CKD). Recent evidence has suggested the involvement of mitochondrial dysfunction and impaired dynamics in the pathogenesis of AKI. Estrogen-related receptor α (ERRα) is an orphan nuclear receptor that acts as a transcription factor to regulate the transcription of genes required for mitochondrial biogenesis and oxidative phosphorylation. In the present study, we examined the effects of ERRα deficiency on the progression of AKI induced by cisplatin...
March 12, 2018: Biochemical and Biophysical Research Communications
Florence Wong, Peter Jepsen, Hugh Watson, Hendrik Vilstrup
BACKGROUND & AIMS: Acute episodes of renal dysfunction or acute kidney injury (AKI) in cirrhotic patients with ascites are mostly precipitated by an acute event. The prevalence of un-precipitated AKI in stable ascitic cirrhotic patients is unknown. The aims of this study were to determine i) the prevalence of un-precipitated AKI in stable cirrhotics with ascites, and ii) any predictive factors for its development. METHODS: 1115 stable cirrhotic patients with mild liver and renal dysfunction but varying degrees of ascites severity from 3 previous satavaptan versus placebo randomized controlled trials (group A: ascites requiring diuretics but not paracentesis; Group B: ascites requiring frequent paracentesis; Group C: refractory ascites) were included...
March 13, 2018: Liver International: Official Journal of the International Association for the Study of the Liver
Yin-Wu Bao, Yuan Yuan, Jiang-Hua Chen, Wei-Qiang Lin
Acute kidney injury (AKI) and chronic kidney disease (CKD) are worldwide public health problems affecting millions of people and have rapidly increased in prevalence in recent years. Due to the multiple causes of renal failure, many animal models have been developed to advance our understanding of human nephropathy. Among these experimental models, rodents have been extensively used to enable mechanistic understanding of kidney disease induction and progression, as well as to identify potential targets for therapy...
March 18, 2018: Zoological Research
Hjalmar R Bouma, Hubert E Mungroop, A Fred de Geus, Daniel D Huisman, Maarten W N Nijsten, Massimo A Mariani, Thomas W L Scheeren, Johannes G M Burgerhof, Robert H Henning, Anne H Epema
BACKGROUND: Perioperative acute kidney injury (AKI) is an important predictor of long-term all-cause mortality after coronary artery bypass (CABG). However, the effect of AKI on long-term mortality after cardiac valve operations is hitherto undocumented. METHODS: Perioperative renal injury and long-term all-cause mortality after valve operations were studied in a prospective cohort of patients undergoing solitary valve operations (n=2,806) or valve operations combined with CABG (n=1,260) with up to 18 years of follow-up...
March 1, 2018: Annals of Thoracic Surgery
Magaiver Andrade-Silva, Marcos Antônio Cenedeze, Luiz Augusto Perandini, Raphael José Ferreira Felizardo, Ingrid Mizuno Watanabe, Juan Sebastian Henao Agudelo, Ângela Castoldi, Giselle Martins Gonçalves, Clarice Silvia Taemi Origassa, Patricia Semedo, Meire Ioshie Hiyane, Orestes Foresto Neto, Denise Maria Avancini Costa Malheiros, Marlene Antonia Reis, Clarice Kazue Fujihara, Roberto Zatz, Alvaro Pacheco-Silva, Niels Olsen Saraiva Câmara, Danilo Candido de Almeida
Acute kidney injury (AKI) is considered an inflammatory disease in which Toll-like receptors (TLRs) signaling pathways play an important role. The activation of TLRs results in production of several inflammatory cytokines leading to further renal damage. In contrast, TLRs are key players on autophagy induction, which is associated with a protective function on cisplatin-induced AKI. Hence, this study aimed evaluate the specific participation of TLR2 and TLR4 molecules on development of cisplatin-induced AKI...
March 2, 2018: Clinical Science (1979-)
Osamu Ichii, Taro Horino
Mature microRNAs (miRNAs) are single-stranded RNAs with approximately 18-25 bases, and their sequences are highly conserved among animals. miRNAs act as posttranscriptional regulators by binding mRNAs, and their main function involves the degradation of their target mRNAs. Recent studies revealed altered expression of miRNAs in the kidneys during the progression of acute kidney injury (AKI) and chronic kidney disease (CKD) in humans and experimental rodent models by using high-throughput screening techniques including microarray and small RNA sequencing...
January 2018: Journal of Toxicologic Pathology
Koji Kawamura, Hideki Nakasone, Saiko Kurosawa, Kazuki Yoshimura, Yukiko Misaki, Ayumi Gomyo, Jin Hayakawa, Masaharu Tamaki, Yu Akahoshi, Machiko Kusuda, Kazuaki Kameda, Hidenori Wada, Yuko Ishihara, Miki Sato, Kiriko Terasako-Saito, Misato Kikuchi, Shun-Ichi Kimura, Aki Tanihara, Shinichi Kako, Heiwa Kanamori, Takehiko Mori, Satoshi Takahashi, Shuichi Taniguchi, Yoshiko Atsuta, Yoshinobu Kanda
The aim of this study was to develop a new composite endpoint that accurately reflects the long-term success of allogeneic hematopoietic stem cell transplantation (allo-HCT), since the conventional graft-versus-host disease-free, relapse-free survival (GRFS) overestimates the impact of GVHD. First, we validated current GRFS (cGRFS), which recently was proposed as a more accurate endpoint of long-term transplant success. cGRFS was defined as survival without disease relapse/progression or active chronic GVHD at a given time after allo-HCT, calculated using two distinct methods; a linear combination of a Kaplan-Meier estimates approach and a multistate modelling approach...
February 21, 2018: Biology of Blood and Marrow Transplantation
Jason H Greenberg, Michael Zappitelli, Yaqi Jia, Heather R Thiessen-Philbrook, Christina A de Fontnouvelle, F Perry Wilson, Steven Coca, Prasad Devarajan, Chirag R Parikh
Background As children progress to higher stages of AKI, the risk for adverse outcomes dramatically increases. No reliable methods exist to predict AKI progression in hospitalized children. To determine if biomarkers of inflammation and kidney injury can predict AKI progression, we conducted a three-center prospective cohort study of children undergoing cardiopulmonary bypass. Methods On the first day of serum creatinine-defined AKI, we measured urine biomarkers (neutrophil gelatinase-associated lipocalin [NGAL], IL-18, kidney injury molecule 1, liver fatty acid binding protein [L-FABP], albumin, and cystatin C) and plasma biomarkers (IFN, IL-1, IL-2, IL-4, IL-6, IL-8, IL-10, IL-12, IL-13, TNF- α , NGAL, and cystatin C)...
February 22, 2018: Journal of the American Society of Nephrology: JASN
Yugeesh R Lankadeva, Junko Kosaka, Roger G Evans, Clive N May
The development of acute kidney injury (AKI) is both a significant and independent prognostic factor of mortality in patients with sepsis, but its pathophysiology remains unclear. Herein, we describe an ovine model of sepsis evoked by the administration of live Escherichia coli in which there is hypotension, peripheral vasodilatation with a large increase in cardiac output; a similar hyperdynamic state to that commonly reported in humans. Interestingly, in this sheep model of sepsis, despite an increase in global kidney blood flow, there is a progressive reduction in renal function...
2018: Methods in Molecular Biology
Mira Küllmar, Alexander Zarbock
Acute kidney injury (AKI) is a common complication in critically ill patients and is associated with a worse short- and long-term outcome. The KDIGO (Kidney Disease: Improving Global Outcomes) guidelines suggest to implement preventive strategies in high-risk patients. Definition and classification of acute kidney injury according to the KDIGO criteria are based on an increase in serum creatinine and/or a decrease in urinary output. Renal replacement therapy (RRT) is the only supportive measure in patients with severe AKI...
February 2018: Anästhesiologie, Intensivmedizin, Notfallmedizin, Schmerztherapie: AINS
Johanna Uusimaa, Riitta Kaarteenaho, Teija Paakkola, Hannu Tuominen, Minna K Karjalainen, Javad Nadaf, Teppo Varilo, Meri Uusi-Mäkelä, Maria Suo-Palosaari, Ilkka Pietilä, Anniina E Hiltunen, Lloyd Ruddock, Heli Alanen, Ekaterina Biterova, Ilkka Miinalainen, Annamari Salminen, Raija Soininen, Aki Manninen, Raija Sormunen, Mika Kaakinen, Reetta Vuolteenaho, Riitta Herva, Päivi Vieira, Teija Dunder, Hannaleena Kokkonen, Jukka S Moilanen, Heikki Rantala, Lawrence M Nogee, Jacek Majewski, Mika Rämet, Mikko Hallman, Reetta Hinttala
A novel multi-organ disease that is fatal in early childhood was identified in three patients from two non-consanguineous families. These children were born asymptomatic but at the age of 2 months they manifested progressive multi-organ symptoms resembling no previously known disease. The main clinical features included progressive cerebropulmonary symptoms, malabsorption, progressive growth failure, recurrent infections, chronic haemolytic anaemia and transient liver dysfunction. In the affected children, neuropathology revealed increased angiomatosis-like leptomeningeal, cortical and superficial white matter vascularisation and congestion, vacuolar degeneration and myelin loss in white matter, as well as neuronal degeneration...
February 8, 2018: Acta Neuropathologica
Remina Shirai, Kengo Sato, Tomoyuki Yamashita, Maho Yamaguchi, Taisuke Okano, Kaho Watanabe-Kominato, Rena Watanabe, Taka-Aki Matsuyama, Hatsue Ishibashi-Ueda, Shinji Koba, Youichi Kobayashi, Tsutomu Hirano, Takuya Watanabe
BACKGROUND: Neopterin, a metabolite of GTP, is produced by activated macrophages and is abundantly expressed within atherosclerotic lesions in human aorta and carotid and coronary arteries. We aimed to clarify the influence of neopterin on both vascular inflammation and atherosclerosis, as neither effect had been fully assessed. METHODS AND RESULTS: We investigated neopterin expression in coronary artery lesions and plasma from patients with coronary artery disease...
February 2, 2018: Journal of the American Heart Association
Naoto Katakami, Tomoya Mita, Yoko Irie, Mitsuyoshi Takahara, Taka-Aki Matsuoka, Masahiko Gosho, Hirotaka Watada, Iichiro Shimomura
BACKGROUND: Ultrasonic gray-scale median (GSM) of the carotid wall reflects its composition and low-GSM carotid plaque is considered to be vulnerable. This study aimed to evaluate the effect of sitagliptin, a dipeptidyl peptidase-4 inhibitor, on the longitudinal change in GSM, an index of the tissue characteristics of the carotid wall, in patients with type 2 diabetes mellitus (T2DM). METHODS: This is a post hoc sub-analysis using data obtained from the SPIKE trial, a randomized controlled trial that demonstrated the beneficial effect of sitagliptin on the progression of carotid intima-media thickness in patients with T2DM...
February 5, 2018: Cardiovascular Diabetology
C Yu, D W Liu, X T Wang, H W He, P Pan, Z Q Xing
Objective: To evaluate the value of microcirculation and oxygen metabolism evaluation (MicrOME) in acute kidney injury(AKI) evaluation in patients with septic shock after resuscitation. Methods: Consecutive patients with septic shock after resuscitation and mechanical ventilation were enrolled from October 2016 to February 2017 in ICU at Peking Union Medical College Hospital.Patients were divided into 3 groups based on 10 min transcutaneous oxygen challenge test transcutaneous partial pressure of oxygen(PtcO(2))and venoarterial pressure of carbon dioxide difference (Pv-aCO(2)) /arteriovenous O(2) content difference (Ca-vO(2)) by blood gas analysis, i...
February 1, 2018: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
Ladan Golestaneh, Joel Neugarten, Frederick Kaskel, Aileen P McGinn
BACKGROUND: Hyponatremia is a common electrolyte disorder and a prognostic marker for mortality. We hypothesize that in advanced chronic or acute kidney disease, hyponatremia is not independently associated with mortality because of the contribution of kidney failure to its pathophysiology. METHODS: Clinical Looking Glass, Montefiore's clinical database, was used to build a cohort of all patients hospitalized between January of 2009 and December of 2011. A chronic kidney disease (CKD) group and an acute kidney injury (AKI) group were defined based on GFR measurements during and before index hospitalization...
February 2, 2018: Clinical and Experimental Nephrology
Ling Zhang, Xiaodong Zhuang, Xinxue Liao
BACKGROUND: This study aimed to investigate the effect of acute kidney injury (AKI) on the progression of renal disease and to develop a clinico-pathological nomogram to predict the renal outcome of IgA nephropathy (IgAN) patients, based on Oxford classification score. METHODS: This is a retrospective observational study. A total of 988 IgAN patients treated at our hospital between 2006 and 2011 were included and divided into AKI (n = 82) and non-AKI group (n = 906)...
January 30, 2018: European Journal of Internal Medicine
Marco Fiorentino, Giuseppe Grandaliano, Loreto Gesualdo, Giuseppe Castellano
BACKGROUND: Acute kidney injury (AKI), even if followed by renal recovery, is a risk factor for the future development of chronic kidney disease (CKD) and end-stage renal disease (ESRD). In the previous years, novel insights in the pathophysiology of CKD progression suggested a causal link between AKI and CKD due to a maladaptive repair after severe and repeated injury. SUMMARY: Several pathological mechanisms have been proposed to contribute to the progression of AKI and transition to CKD/ESRD including hypoxia and microvascular rarefaction, alterations of renal resident cell phenotypes and functions, cell cycle arrest in the G2/M phase, persistent chronic inflammation, and development of interstitial fibrosis, mitochondrial fragmentation, epigenetic changes, activation of renin-angiotensin system (RAS), cell and tissue senescence...
2018: Contributions to Nephrology
Carlos E Palant, Samir S Patel, Lakhmir S Chawla
BACKGROUND: Acute kidney injury (AKI) is associated with both short- and long-term clinical consequences including progression to chronic kidney disease. Recovery of renal function has gained importance, as interventions to prevent or treat AKI are limited. Basing recovery on a return of serum creatinine values excludes mounting evidence that AKI, even when reversible, is a very serious clinical event that will result in a significant number of both renal and extra-renal complications such as late stage kidney disease, major cardiovascular events, and death...
2018: Contributions to Nephrology
Tiziana Fragasso, Zaccaria Ricci, Stuart L Goldstein
BACKGROUND: Acute kidney injury (AKI) in children is a serious condition with an important impact on morbidity and mortality. Onset can be insidious and it is frequently unrecognized in the early phase when the therapeutic opportunities are theoretically more effective. SUMMARY: The present review focuses on the most recent epidemiology studies and the progress in pediatric AKI (pAKI) research. Standardization of definition (presented in the Kidney Disease: Improving Global Outcomes) and novel biomarkers have been developed to help clinicians recognize kidney injury in a timely manner, both in adult and pediatric populations...
2018: Contributions to Nephrology
Zondiwe Victor Mwanza, Mignon McCulloch, Mark Drayson, Timothy Plant, David V Milford, Gavin Dreyer
BACKGROUND: There is a paucity of data on paediatric kidney disease in developing countries such as Malawi. Descriptive research on kidney disease is essential to improving patient outcomes. METHODS: We conducted a cross-sectional study at a tertiary hospital in Malawi from 2012 to 2013. Children under 14 years with proteinuric kidney disease were enrolled from paediatric wards and outpatient clinics at Queen Elizabeth Central Hospital (QECH). Demographic, clinical and laboratory data were collected from patients at enrolment and at 3 months review at which point clinical status and disease outcome were ascertained...
January 31, 2018: BMC Nephrology
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