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https://www.readbyqxmd.com/read/27813491/hyperin-protects-against-lps-induced-acute-kidney-injury-by-inhibiting-tlr4-and-nlrp3-signaling-pathways
#1
Gong Chunzhi, Li Zunfeng, Qin Chengwei, Bu Xiangmei, Yu Jingui
Hyperin is a flavonoid compound derived from Ericaceae, Guttifera, and Celastraceae that has been shown to have various biological effects, such as anti-inflammatory and anti-oxidant effects. However, there is no evidence to show the protective effects of hyperin on lipopolysaccharide (LPS)-induced acute kidney injury (AKI). Therefore, we investigated the protective effects and mechanism of hyperin on LPS-induced AKI in mice. The levels of TNF-α, IL-6, and IL-1β were tested by ELISA. The effects of hyperin on blood urea nitrogen (BUN) and serum creatinine were also detected...
November 1, 2016: Oncotarget
https://www.readbyqxmd.com/read/27767365/early-septic-insult-in-neonatal-pigs-increases-serum-and-urinary-soluble-fas-ligand-and-decreases-kidney-function-without-inducing-significant-renal-apoptosis
#2
Hitesh Soni, Adebowale Adebiyi
Apoptosis of renal tubular and glomerular cells during kidney disease involves activation of Fas ligand (FasL)-dependent death pathway. The significance of FasL in neonates with septic acute kidney injury (AKI) is unresolved, but an increase in renal FasL production, and/or infiltration of circulating FasL into the kidneys may occur following initial septic insult. Here, we examined whether soluble Fas ligand (sFasL) levels are altered during early phase of septic AKI in neonates. Six hours of polymicrobial sepsis elicited by cecal ligation and puncture (CLP) elevated serum C-reactive protein (CRP) (a bacteremia and sepsis marker) concentration in anesthetized and mechanically ventilated neonatal pigs...
October 21, 2016: Renal Failure
https://www.readbyqxmd.com/read/27760529/the-effect-of-continuous-venovenous-hemofiltration-on-neutrophil-gelatinase-associated-lipocalin-plasma-levels-in-patients-with-septic-acute-kidney-injury
#3
Xingui Dai, Tao Li, Zhenhua Zeng, Chunlai Fu, Shengbiao Wang, Yeping Cai, Zhongqing Chen
BACKGROUND: It is known that continuous venonenous hemofiltration (CVVH) does not affect the plasma level of neutrophil gelatinase-associated lipocalin (pNGAL) in acute kidney injury (AKI) patients. However, because of the unique pathophysiology underlying AKI caused by sepsis, the effect of CVVH on pNGAL in this clinical setting is less certain. The purpose of this study was to determine the effect of CVVH on pNGAL in sepsis-induced AKI patients. METHODS: Between August 1, 2014, and December 31, 2014, 42 patients with sepsis-induced AKI underwent CVVH in the general intensive care unit of our institution and were consecutively enrolled in this study...
October 19, 2016: BMC Nephrology
https://www.readbyqxmd.com/read/27760303/effects-of-a-human-recombinant-alkaline-phosphatase-on-renal-hemodynamics-oxygenation-and-inflammation-in-two-models-of-acute-kidney-injury
#4
Esther Peters, Bülent Ergin, Asli Kandil, Ebru Gurel-Gurevin, Andrea van Elsas, Rosalinde Masereeuw, Peter Pickkers, Can Ince
Two small clinical trials indicated that administration of bovine intestinal alkaline phosphatase (AP) improves renal function in critically ill patients with sepsis-associated acute kidney injury (AKI), for which the mechanism of action is not completely understood. Here, we investigated the effects of a newly developed human recombinant AP (recAP) on renal oxygenation and hemodynamics and prevention of kidney damage and inflammation in two in vivo AKI models. To induce AKI, male Wistar rats (n=18) were subjected to renal ischemia (30min) and reperfusion (I/R), or sham-operated...
December 15, 2016: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/27754216/os-32-01-atrial-natriuretic-peptide-improves-urine-flow-at-proximal-tubules-in-septic-acute-kidney-injury
#5
Hiroaki Kitamura, Daisuke Nakano, Zhang Yifan, Akira Nishiyama
OBJECTIVE: Carperitide, alpha-human atrial natriuretic peptide, is used in expectation of protecting the kidney during sepsis in internal care unit; however, the detailed mechanism of action has not been clarified yet. As septic acute kidney injury (AKI) does not induce characteristic histological damage, we aimed assess the effects of carperitide treatment on the decline of renal function during lipopolysaccharide-induced AKI by using real-time intravital imaging technique. DESIGN AND METHOD: The renal function was analyzed by the bolus-shot FITC-inulin kinetics method that visualizes the tubular flow after free filtration from glomeruli...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27671340/effects-of-n-acetylcysteine-nac-supplementation-in-resuscitation-fluids-on-renal-microcirculatory-oxygenation-inflammation-and-function-in-a-rat-model-of-endotoxemia
#6
Bulent Ergin, Philippe Guerci, Lara Zafrani, Frank Nocken, Asli Kandil, Ebru Gurel-Gurevin, Cihan Demirci-Tansel, Can Ince
BACKGROUND: Modulation of inflammation and oxidative stress appears to limit sepsis-induced damage in experimental models. The kidney is one of the most sensitive organs to injury during septic shock. In this study, we evaluated the effect of N-acetylcysteine (NAC) administration in conjunction with fluid resuscitation on renal oxygenation and function. We hypothesized that reducing inflammation would improve the microcirculatory oxygenation in the kidney and limit the onset of acute kidney injury (AKI)...
December 2016: Intensive Care Medicine Experimental
https://www.readbyqxmd.com/read/27661757/sepsis-induced-acute-kidney-injury
#7
Hernando Gómez, John A Kellum
PURPOSE OF REVIEW: Sepsis is a common and frequently fatal condition in which mortality has been consistently linked to increasing organ dysfunction. For example, acute kidney injury (AKI) occurs in 40-50% of septic patients and increases mortality six to eight-fold. However, the mechanisms by which sepsis causes organ dysfunction are not well understood and hence current therapy remains reactive and nonspecific. RECENT FINDINGS: Recent studies have challenged the previous notion that organ dysfunction is solely secondary to hypoperfusion, by showing, for example, that AKI occurs in the setting of normal or increased renal blood flow; and that it is characterized not by acute tubular necrosis or apoptosis, but rather by heterogeneous areas of colocalized sluggish peritubular blood flow and tubular epithelial cell oxidative stress...
December 2016: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/27643176/os-32-01-atrial-natriuretic-peptide-improves-urine-flow-at-proximal-tubules-in-septic-acute-kidney-injury
#8
Hiroaki Kitamura, Daisuke Nakano, Zhang Yifan, Akira Nishiyama
OBJECTIVE: Carperitide, alpha-human atrial natriuretic peptide, is used in expectation of protecting the kidney during sepsis in internal care unit; however, the detailed mechanism of action has not been clarified yet. As septic acute kidney injury (AKI) does not induce characteristic histological damage, we aimed assess the effects of carperitide treatment on the decline of renal function during lipopolysaccharide-induced AKI by using real-time intravital imaging technique. DESIGN AND METHOD: The renal function was analyzed by the bolus-shot FITC-inulin kinetics method that visualizes the tubular flow after free filtration from glomeruli...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27620507/protective-effects-of-sirtuin-3-in-a-murine-model-of-sepsis-induced-acute-kidney-injury
#9
Wen-Yu Zhao, Lei Zhang, Ming-Xing Sui, You-Hua Zhu, Li Zeng
Acute kidney injury (AKI) is a rapid loss of kidney function characterized by damage to renal tubular cells driven by mitochondrial dysregulation and oxidative stress. Here, we used a murine caecal ligation and puncture (CLP) model of sepsis-induced AKI to study the role of sirtuin 3 (SIRT3), a NAD(+) dependent deacetylase critical for the maintenance of mitochondrial viability, in AKI-related renal tubular cell damage and explored the underlying mechanisms. CLP induced alterations in kidney function and morphology were associated with SIRT3 downregulation, and SIRT3 deletion exacerbated CLP-induced kidney dysfunction, renal tubular cell injury and apoptosis, mitochondrial alterations, and ROS production in a knockout mouse model...
September 13, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27602552/physiological-aspects-of-toll-like-receptor-4-activation-in-sepsis-induced-acute-kidney-injury
#10
S B Anderberg, T Luther, R Frithiof
Sepsis-induced acute kidney injury (SI-AKI) is common and associated with high mortality. Survivors are at increased risk of chronic kidney disease. The precise mechanism underlying SI-AKI is unknown, and no curative treatment exists. Toll-like receptor 4 (TLR4) activates the innate immune system in response to exogenous microbial products. The result is an inflammatory reaction aimed at clearing a potential infection. However, the consequence may also be organ dysfunction as the immune response can cause collateral damage to host tissue...
September 7, 2016: Acta Physiologica
https://www.readbyqxmd.com/read/27530232/does-furosemide-increase-oxidative-stress-in-acute-kidney-injury
#11
Benjamin I Silbert, Kwok M Ho, Jeffrey Lipman, Jason A Roberts, Tomas B Corcoran, David J Morgan, Warren Pavey, Emilie Mas, Anne E Barden, Trevor A Mori
Furosemide, a loop diuretic, is used to increase urine output in patients with acute kidney injury (AKI). It remains uncertain whether the benefits of furosemide in AKI outweigh its potential harms. We investigated if furosemide influenced oxidative stress in 30 critically ill patients with AKI by measuring changes in F2-isoprostanes (F2-IsoPs), markers of in vivo oxidative stress, in plasma and urine following intravenous furosemide. Urine F2-IsoPs were higher in sepsis (p = 0.001) and increased in proportion to urine furosemide (p = 0...
September 15, 2016: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/27470403/erythropoietin-attenuates-renal-and-pulmonary-injury-in-polymicrobial-induced-sepsis-through-epo-r-vegf-and-vegf-r2-modulation
#12
Mauro Heitrich, Daiana Maria de Los Ángeles García, Tania Romina Stoyanoff, Juan Pablo Rodríguez, Juan Santiago Todaro, María Victoria Aguirre
Sepsis remains the most important cause of acute kidney injury (AKI) and acute lung injury (ALI) in critically ill patients. The cecal ligation and puncture (CLP) model in experimental mice reproduces most of the clinical features of sepsis. Erythropoietin (EPO) is a well-known cytoprotective multifunctional hormone, which exerts anti-inflammatory, anti-oxidant, anti-apoptotic and pro-angiogenic effects in several tissues. The aim of this study was to evaluate the underlying mechanisms of EPO protection through the expression of the EPO/EPO receptor (EPO-R) and VEGF/VEF-R2 systems in kidneys and lungs of mice undergoing CLP-induced sepsis...
August 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27434563/-early-diagnostic-value-of-neutrophil-gelatinase-associated-lipocalin-and-interleukin-18-in-patients-with-sepsis-induced-acute-kidney-injury
#13
Lili Zhu, Dongwu Shi
OBJECTIVE: To evaluate the early diagnosis value of blood neutrophil gelatinase-associated lipocalin (NGAL) and interleukin-18 (IL-18) in patients with sepsis-induced acute kidney injury (AKI). METHODS: A prospective case controlled study was conducted. Fifty-six patients with sepsis but without renal disease admitted to intensive care unit (ICU) of Shanxi People's Hospital from April 2014 to April 2015 were enrolled. Blood lactic acid and acute physiology and chronic health evaluation II (APACHE II) score at ICU admission were recorded...
August 2016: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/27430552/the-neutrophil-elastase-inhibitor-sivelestat-attenuates-sepsis-related-kidney-injury-in-rats
#14
Guofu Li, Jia Jia, Kaiqiang Ji, Xiaoying Gong, Rui Wang, Xiaoli Zhang, Haiyuan Wang, Bin Zang
Sepsis-induced acute kidney injury (AKI) represents a major cause of mortality in intensive care units. Sivelestat, a selective inhibitor of neutrophil elastase (NE), can attenuate sepsis-related acute lung injury. However, whether sivelestat can preserve kidney function during sepsis remains unclear. In this study, we thus examined the effects of sivelestat on sepsis-related AKI. Cecal ligation and puncture (CLP) was performed to induce multiple bacterial infection in male Sprague-Dawley rats, and subsequently, 50 or 100 mg/kg sivelestat were administered by intraperitoneal injection immediately after the surgical procedure...
September 2016: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/27387474/emerging-role-of-lipopolysaccharide-binding-protein-in-sepsis-induced-acute-kidney-injury
#15
Alessandra Stasi, Angelica Intini, Chiara Divella, Rossana Franzin, Eustacchio Montemurno, Giuseppe Grandaliano, Claudio Ronco, Enrico Fiaccadori, Giovanni Battista Pertosa, Loreto Gesualdo, Giuseppe Castellano
Sepsis remains a serious cause of morbidity and mortality in critically ill patients, with limited therapeutic options available. Of the several disorders connected with sepsis, acute kidney injury (AKI) is one of the major complications. The pathophysiology of sepsis-induced AKI is characterized by severe inflammation in renal parenchyma with endothelial dysfunction, intra-glomerular thrombosis and tubular injury. Endothelial dysfunction is regulated by several mechanisms implicated in cellular de-differentiation, such as endothelial-to-mesenchymal transition (EndMT)...
July 6, 2016: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/27334720/knockout-of-interleukin-17a-protects-against-sepsis-associated-acute-kidney-injury
#16
Cong-Juan Luo, Feng Luo, Li Zhang, Yan Xu, Guang-Yan Cai, Bo Fu, Zhe Feng, Xue-Feng Sun, Xiang-Mei Chen
BACKGROUND: Sepsis-associated acute kidney injury (SA-AKI) is an independent risk factor for death in patients with sepsis, but treatment for it is limited. To improve the diagnosis and treatment of SA-AKI, we must first understand its pathogenesis. Recently, interleukin (IL)-17A has been shown to be associated with the pathogenesis of acute kidney injury and sepsis, but its role in SA-AKI remains unclear. METHODS: SA-AKI was induced in male C57BL/6 and IL-17A(-/-) mice using cecal ligation and puncture (CLP) operations for 24 h...
December 2016: Annals of Intensive Care
https://www.readbyqxmd.com/read/27316915/french-intensive-care-society-international-congress-r%C3%A3-animation-2016
#17
(no author information available yet)
No abstract text is available yet for this article.
June 2016: Annals of Intensive Care
https://www.readbyqxmd.com/read/27266727/determinants-of-hepcidin-levels-in-sepsis-associated-acute-kidney-injury-impact-on-pakt-pten-pathways
#18
Mona F Schaalan, Walid A Mohamed
The antimicrobial β-defensin-like role of hepcidin (HEPC) has been increasingly investigated for its potential role in acute kidney injury (AKI). In sepsis-induced AKI, there is a complex interplay between positive and negative regulation of HEPC, with consequently altered distributions of iron caused by changes in HEPC levels. The aim of the current research was to assess serum HEPC levels in a cohort of septic patients with AKI and investigate the regulatory impact of hypoxia-inducing factor (HIF)-1α, erythropoietin (EPO) and inflammation on HEPC levels and related signal cascades in these patients...
September 2016: Journal of Immunotoxicology
https://www.readbyqxmd.com/read/27193977/beneficial-effects-of-agomelatine-in-experimental-model-of-sepsis-related-acute-kidney-injury
#19
Nurşah Başol, Oytun Erbaş, Türker Çavuşoğlu, Ayfer Meral, Utku Ateş
BACKGROUND: Sepsis-related acute kidney injury (AKI) is a serious complication of sepsis. Problems persist regarding early diagnosis and treatment of AKI. The aim of the present study was to evaluate the efficacy of agomelatine, which is primarily known for its positive effects on depressive and anxiety disorders in sepsis-related AKI. METHODS: Sepsis model was created with cecal ligation puncture (CLP). Rats were separated into 4 groups of 8 each: the control group, the sham-operated group, the CLP+saline group, and the CLP+agomelatine group...
March 2016: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/27163760/nephrology-update-acute-kidney-injury
#20
REVIEW
Nagaraju Sarabu, Mahboob Rahman
Acute kidney injury (AKI) refers to any acute decrease in glomerular filtration rate, regardless of etiology. Staging of AKI has been recommended to stratify AKI patients according to severity of the condition, based on serum creatinine level and urine output. Classification of AKI into prerenal, intrinsic renal, and postrenal etiologies is helpful in differential diagnosis and management. AKI in hospitalized patients typically occurs due to decreased renal perfusion. Drug-induced, contrast-associated, postoperative, and sepsis-associated AKI also can occur...
May 2016: FP Essentials
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