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sepsis-induced acute kidney injury

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https://www.readbyqxmd.com/read/29778842/curcumin-attenuates-sepsis-induced-acute-organ-dysfunction-by-preventing-inflammation-and-enhancing-the-suppressive-function-of-tregs
#1
Longwang Chen, Yang Lu, Linjun Zhao, Lili Hu, Qiaomeng Qiu, Zhuoling Zhang, Mengfang Li, Guangliang Hong, Bing Wu, Guangju Zhao, Zhongqiu Lu
Sepsis is characterized by the extensive release of cytokines and other mediators. It results in a dysregulated immune response and can lead to organ damage and death. Curcumin has anti-inflammatory properties and immunoregulation functions in various disorders such as sepsis, cancer, rheumatoid arthritis, cardiovascular diseases, lung fibrosis, gallstone formation, and diabetes. This paper investigates the effects of curcumin on immune status and inflammatory response in mice subjected to cecal ligation and puncture (CLP)...
May 17, 2018: International Immunopharmacology
https://www.readbyqxmd.com/read/29771701/dynamic-contrast-enhanced-ultrasound-identifies-microcirculatory-alterations-in-sepsis-induced-acute-kidney-injury
#2
Alexandre Lima, Tom van Rooij, Bulent Ergin, Michele Sorelli, Yasin Ince, Patricia A C Specht, Egbert G Mik, Leonardo Bocchi, Klazina Kooiman, Nico de Jong, Can Ince
OBJECTIVES: We developed quantitative methods to analyze microbubble kinetics based on renal contrast-enhanced ultrasound imaging combined with measurements of sublingual microcirculation on a fixed area to quantify early microvascular alterations in sepsis-induced acute kidney injury. DESIGN: Prospective controlled animal experiment study. SETTING: Hospital-affiliated animal research institution. SUBJECTS: Fifteen female pigs...
May 15, 2018: Critical Care Medicine
https://www.readbyqxmd.com/read/29741778/gadd45%C3%AE-plays-a-protective-role-in-acute-lung-injury-by-regulating-apoptosis-in-experimental-sepsis-in-vivo
#3
Sung-Je Moon, Hyun-Yong Kim, Yong-Hoon Kim, Kyoung-Shim Kim, Jung-Ran Noh, Hyun-Jong Kim, Ji-Hyun Choi, Jung H Hwang, Chul-Ho Lee
Sepsis is a systemic inflammatory response syndrome due to microbial infection. Growth arrest and DNA-damage-inducible 45 beta (GADD45β) are induced by genotoxic stress and inflammatory cytokines. However, the role of GADD45β during bacterial infection remains unclear. This study was aimed at investigating the role of GADD45β in sepsis. We used GADD45β-knockout (KO) mice and C57BL/6J wild-type (WT) mice. Experimental sepsis was induced by lipopolysaccharide (LPS) administration or cecal ligation and puncture (CLP)...
May 9, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29738027/hydralazine-associated-adverse-events-a-report-of-two-cases-of-hydralazine-induced-anca-vasculitis
#4
Roman Zuckerman, Mayurkumar Patel, Eric J Costanzo, Harry Dounis, Rany Al Haj, Seyedehsara Seyedali, Arif Asif
Hydralazine is a direct-acting vasodilator, which has been used in treatment for hypertension (HTN) since the 1950s. While it is well known to cause drug-induced lupus (DIL), recent reports are indicating the emergence of the drug-induced anti-neutrophil cytoplasmic antibody (ANCA) associated vasculitis (DIV). Herein, we describe two patients (aged 57 and 87 years) who presented with severe acute kidney injury (AKI), proteinuria, and hematuria. Both were receiving hydralazine for the treatment of hypertension...
May 7, 2018: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
https://www.readbyqxmd.com/read/29733849/dexmedetomidine-restores-septic-renal-function-via-promoting-inflammation-resolution-in-a-rat-sepsis-model
#5
Rongzong Qiu, Weifeng Yao, Haocong Ji, Dongdong Yuan, Xiaofeng Gao, Weiping Sha, Fei Wang, Pinjie Huang, Ziqing Hei
BACKGROUND: Acute kidney injury occurred after sepsis, resulting in high mortality. This research aims to elucidate the mechanistic effect of DEX on the renal inflammation resolution during sepsis in rats. METHODS: The rats were randomly divided into a sham group and the other three cecal ligation and puncture (CLP) model groups, based on different treatments: placebo, DEX and 2-adrenergic receptor (AR) inhibitor atipamezole (AT) treatment (DEX + AT) groups...
May 4, 2018: Life Sciences
https://www.readbyqxmd.com/read/29731819/cytoprotective-effect-of-aquaporin-1-against-lipopolysaccharide-induced-apoptosis-and-inflammation-of-renal-epithelial-hk-2-cells
#6
Yiduo Wang, Wenzheng Zhang, Guangzhe Yu, Qian Liu, Yingyu Jin
Sepsis is the most common underlying disease of disseminated intravascular coagulation. Acute kidney injury is a common and serious complications of sepsis. In the present study, a lipopolysaccharide (LPS)-induced human proximal tubule cell line (HK-2 cells) was selected as an in vitro model of septic acute kidney injury. The aim of the present study was to investigate whether aquaporin 1 (AQP-1) has a cytoprotective role in LPS-induced HK-2 cells. HK-2 cells were treated with 0-16 µg/ml LPS for 0-24 h to establish the in vitro model of sepsis...
May 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29728790/in-vitro-comparison-of-the-adsorption-of-inflammatory-mediators-by-blood-purification-devices
#7
Benjamin Malard, Corine Lambert, John A Kellum
BACKGROUND: Septic shock, a leading cause of acute kidney injury, induces release of pro-/anti-inflammatory mediators, leading to increased mortality and poor renal recovery. This is the first in vitro study directly comparing three single-use blood purification devices in terms of removing sepsis-associated mediators and endotoxins. METHODS: In vitro hemoperfusion was performed using oXiris® , CytoSorb® , and Toraymyxin® . Heparinized human plasma from healthy volunteers was pre-incubated with pathologic quantities of inflammatory mediators and filtered in a closed-loop circulation model for 2 h...
May 4, 2018: Intensive Care Medicine Experimental
https://www.readbyqxmd.com/read/29725250/lipopolysaccharide-mediates-the-destruction-of-intercellular-tight-junction-among-renal-tubular-epithelial-cells-via-rhot1-smad-4-jam-3-pathway
#8
Shixiang Zheng, Zhuoyong Lin, Zhongwei Liu, Yipeng Liu, Wenwei Wu
Background: The morbidity of sepsis induced acute kidney injury remains unacceptable high and the mechanisms of that disease remains unclear. For urine backleak and intercellular tight junction among tubular epithelial cells (TECs) destruction often occur during sepsis induced acute kidney injury, we examined whether lipopolysaccharide could damage intercellular tight junction among TECs and associated mechanisms in our present study. Methods: HK-2 cells were cultured, transfected with different SiRNAs and stimulated with LPS and PYR-41...
2018: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/29723248/activation-of-m1-macrophages-in-sepsis-induced-acute-kidney-injury-in-response-to-heparin-binding-protein
#9
Li Xing, Lu Zhongqian, Song Chunmei, Chen Pingfa, He Lei, Jin Qin, Mu Genhua, Deng Yijun
BACKGROUND: In the early stage of sepsis, M1 macrophages result in the production of inflammatory mediators and AKI. Heparin-binding protein (HBP) have been shown to play important roles in sepsis-induced AKI. In this study, we investigate the association of HBP with M1 macrophages in sepsis-induced AKI. METHODS: Male C57BL6 mice were subjected to cecal ligation and puncture (CLP) or sham surgery. Biochemical and histological renal damage was assessed. Macrophage infiltration was assessed by immunohistochemistry...
2018: PloS One
https://www.readbyqxmd.com/read/29704392/the-nephroprotective-effect-of-ms-275-on-lipopolysaccharide-lps-induced-acute-kidney-injury-by-inhibiting-reactive-oxygen-species-ros-oxidative-stress-and-endoplasmic-reticulum-stress
#10
Haiyue Zhang, Wenbin Zhang, Fangzhou Jiao, Xun Li, Hong Zhang, Luwen Wang, Zuojiong Gong
BACKGROUND Histone deacetylase (HDAC) inhibitors can attenuate acute kidney injury (AKI)-mediated damage and reduce fibrosis in kidney disease models. The aim of the present study was to investigate the effects of the HDAC inhibitor MS-275 on lipopolysaccharide (LPS)-induced AKI and the associated mechanisms. MATERIAL AND METHODS A LPS-induced model in 6-8 weeks-old mice was established by intraperitoneal injection of LPS (10 mg/kg), with pre-treatment of MS-275 (2 mg/kg/day) administered intraperitoneally for five days...
April 28, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29690924/the-effect-of-regularly-dosed-paracetamol-versus-no-paracetamol-on-renal-function-in-plasmodium-knowlesi-malaria-packnow-study-protocol-for-a-randomised-controlled-trial
#11
Daniel J Cooper, Katherine Plewes, Matthew J Grigg, Giri S Rajahram, Kim A Piera, Timothy William, Mark D Chatfield, Tsin Wen Yeo, Arjen M Dondorp, Nicholas M Anstey, Bridget E Barber
BACKGROUND: Plasmodium knowlesi is the most common cause of human malaria in Malaysia. Acute kidney injury (AKI) is a frequent complication. AKI of any cause can have long-term consequences, including increased risk of chronic kidney disease, adverse cardiovascular events and increased mortality. Additional management strategies are therefore needed to reduce the frequency and severity of AKI in malaria. In falciparum malaria, cell-free haemoglobin (CFHb)-mediated oxidative damage contributes to AKI...
April 24, 2018: Trials
https://www.readbyqxmd.com/read/29682165/urinary-mitochondrial-dna-identifies-renal-dysfunction-and-mitochondrial-damage-in-sepsis-induced-acute-kidney-injury
#12
Qiongyuan Hu, Jianan Ren, Huajian Ren, Jie Wu, Xiuwen Wu, Song Liu, Gefei Wang, Guosheng Gu, Kun Guo, Jieshou Li
Background: Recent animal studies have shown that mitochondrial dysfunction initiates and accelerates renal injury in sepsis, but its role in sepsis remains unknown. Mitochondrial stress or dying cells can lead to fragmentation of the mitochondrial genome, which is considered a surrogate marker of mitochondrial dysfunction. Therefore, we evaluated the efficiency of urinary mitochondrial DNA (UmtDNA) as a marker of renal dysfunction during sepsis-induced acute kidney injury (AKI). Methods: We isolated DNA from plasma and urine of patients...
2018: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29669307/long-non-coding-rna-neat1-plays-an-important-role-in-sepsis-induced-acute-kidney-injury-by-targeting-mir-204-and-modulating-the-nf-%C3%AE%C2%BAb-pathway
#13
REVIEW
Yi Chen, Jialing Qiu, Bin Chen, Youping Lin, Yulan Chen, Guojin Xie, Junming Qiu, Huasheng Tong, Dongxin Jiang
This study aimed to explore the role of long non-coding RNA NEAT1 in sepsis-induced acute kidney injury (AKI). The expression levels of NEAT1 in sepsis-induced AKI patients were detected. The rat mesangial cells (RMCs) were treated with lipopolysaccharide (LPS) to induce cell injury. Then, the effects of NEAT1 suppression on the cell viability, apoptosis, cytokines expression, and oxidative stress in the LPS-stimulated RMCs were tested. The regulatory miRNA of NEAT1, as well as the target genes of this miRNA, were investigated...
April 15, 2018: International Immunopharmacology
https://www.readbyqxmd.com/read/29667230/nephropreventing-effect-of-hypoxia-inducible-factor-1%C3%AE-in-a-rat-model-of-ischemic-reperfusion-acute-kidney-injury
#14
Huiling Wang, Nanmei Liu, Rui Li, Jun Tian, Weifeng Hu, Jinyuan Zhang
Acute kidney injury (AKI) often occurs in 5% hospitalized patients and in 50% sepsis patients with acute renal dysfunction. However, there is no safe and effective therapeutic strategies until now. Hypoxia condition is closely related to renal injuries and function under AKI. As HIF-1α is critical for cellular response to hypoxia, we investigated the protective effect of HIF-1α in a rat AKI model. We found that HIF-1 α injection improved the survival of rat with AKI, and the level of Cr and BUN was also increased...
April 17, 2018: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/29620262/dynamic-expression-and-roles-of-sequestome%C3%A2-1-p62-in-lps%C3%A2-induced-acute-kidney-injury-in-mice
#15
Ting Li, Jie Zhao, Shuying Miao, Yunfei Xu, Xianzhong Xiao, Ying Liu
Acute kidney injury (AKI) is one of the most common complications of sepsis. The roles of autophagy in AKI have been demonstrated in previous studies. Sequestosome‑1 (p62) has been demonstrated to serve essential roles in autophagy. The dysregulation of autophagy causes p62 accumulation, which is associated with increased inflammation and tumorigenesis. However, the expression patterns and role of p62 in septic AKI remain unknown. The present study detected the renal autophagy level, and the expression and localization of p62, in a lipopolysaccharide (LPS)‑induced AKI mouse model...
March 28, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29589603/acute-kidney-injury-in-kidney-transplant-patients
#16
C Dudreuilh, R Aguiar, M Ostermann
Managing kidney transplant patients in an acute medical unit can be challenging, as patients have a single functioning kidney, underlying chronic kidney disease, and are immunosuppressed. Transplant patients develop AKI for all usual reasons but the differential diagnosis is wider and includes specific problems, such as obstruction of a single functioning kidney, vascular thrombosis, rejection, drug toxicity and drug-induced thrombotic microangiopathy. Septic AKI is common but again, the differential diagnosis of sepsis is wider...
2018: Acute Medicine
https://www.readbyqxmd.com/read/29573604/value-of-the-combination-of-renal-resistance-index-and-central-venous-pressure-in-the-early-prediction-of-sepsis-induced-acute-kidney-injury
#17
Jieqiong Song, Wei Wu, Yizhou He, Shilong Lin, Duming Zhu, Ming Zhong
PURPOSE: Early prediction of acute kidney injury (AKI) in septic patients is difficult. This study aimed to assess the values of renal resistive index (RI), central venous pressure (CVP), and their combination in the early prediction of sepsis-induced AKI. METHODS: A prospective cohort study was performed in septic patients. The variables potentially associated with AKI were recorded at admission and compared between the AKI and non-AKI groups. The variables independently associated with sepsis-induced AKI were identified using multivariable logistic regression, and the area under the receiver operating characteristic curve (AUROC) analysis was calculated...
June 2018: Journal of Critical Care
https://www.readbyqxmd.com/read/29568928/oral-supplementation-with-ursolic-acid-ameliorates-sepsis-induced-acute-kidney-injury-in-a-mouse-model-by-inhibiting-oxidative-stress-and-inflammatory-responses
#18
Zhenyu Zhang, Hong Zhang, Rui Chen, Zhong Wang
Ursolic acid (UA) as a multiple bioactive native compound has recently been demonstrated to treat sepsis in animal models. However, the beneficial effects of UA in sepsis‑induced acute kidney injury (AKI) are not completely understood. In the present study, the effect of UA on sepsis‑induced AKI in cecal ligation and puncture (CLP) surgery mice was investigated. Renal histomorphological analysis was performed by hematoxylin and eosin staining. The expression of inflammatory markers in the kidney of septic mice was measured by reverse transcription‑quantitative polymerase chain reaction and western blotting...
March 16, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29568906/mir-124-mcp-1-signaling-pathway-modulates-the-protective-effect-of-itraconazole-on-acute-kidney-injury-in-a-mouse-model-of-disseminated-candidiasis
#19
Xiao-Yue Li, Yu-Qi Zhang, Gang Xu, Shao-Hong Li, Heng Li
Previous studies have indicated that monocyte chemoattractant protein-1 (MCP‑1), also referred to as C‑C motif chemokine ligand 2, has a significant role in the pathogenesis of sepsis, however, how microRNAs (miRs) contribute to this process remains to be fully elucidated. In the present study, using a mouse model of disseminated candidiasis, the renoprotective effect of itraconazole (ITR) and adenovirus‑delivered miR‑124 was investigated. The mice were treated with ITR (50 mg/kg) or transfected with miR‑124 mimics via tail‑vein injection 7 days prior to Candida albicans infection...
March 13, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29545882/pterostilbene-attenuates-acute-kidney-injury-in-septic-mice
#20
Yizi Xia, Ying Chen, Luming Tang, Zheng Wang, Yu Zheng
Acute kidney injury (AKI) is a severe complication of sepsis with a high mortality and morbidity. Pterostilbene (Pte) has been suggested to confer anti-apoptotic and anti-inflammatory effects. In the current study, the effects of Pte on AKI were evaluated in septic mice. Cecal ligation and puncture surgery was performed to induce sepsis. The results suggested that Pte administration significantly decreased the levels of serum urea nitrogen and creatinine, and improved the survival rate of septic mice. Additionally, the renal injury induced by sepsis was attenuated by pterostilbene treatment...
April 2018: Experimental and Therapeutic Medicine
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