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Ischemia reperfusion kidney

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https://www.readbyqxmd.com/read/28545716/connective-tissue-growth-factor-regulates-fibrosis-associated-renal-lymphangiogenesis
#1
Hiroshi Kinashi, Lucas L Falke, Tri Q Nguyen, Niels Bovenschen, Jan Aten, Andrew Leask, Yasuhiko Ito, Roel Goldschmeding
Lymphangiogenesis is correlated with the degree of renal interstitial fibrosis. Pro-fibrotic transforming growth factor β induces VEGF-C production, the main driver of lymphangiogenesis. Connective tissue growth factor (CTGF) is an important determinant of fibrotic tissue remodeling, but its possible involvement in lymphangiogenesis has not been explored. We found prominent lymphangiogenesis during tubulointerstitial fibrosis to be associated with increased expression of CTGF and VEGF-C in human obstructed nephropathy as well as in diabetic kidney disease...
May 23, 2017: Kidney International
https://www.readbyqxmd.com/read/28545277/-effect-of-the-ischemic-post-conditioning-on-the-prevention-of-the-cardio-renal-damage-in-patients-with-acute-st-segment-elevation-myocardial-infarction-after-primary-percutaneous-coronary-intervention
#2
Y Y Wang, T Li, Y W Liu, B J Liu, X M Hu, Y Wang, W Q Gao, P Wu, L Huang, X Li, W J Peng, M Ning
Objective: To evaluate the effect of the ischemic post-conditioning (IPC) on the prevention of the cardio-renal damage in patients with acute ST-segment elevation myocardial infarction (STEMI) after primary percutaneous coronary intervention (PPCI). Methods: A total of 251 consecutive STEMI patients underwent PPCI in the heart center of Tianjin Third Central Hospital from January 2012 to June 2014 were enrolled in this prospective, randomized, control, single-blinded, clinical registry study. Patients were randomly divided into IPC group (123 cases) and control group (128 cases) with random number table...
April 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28539382/il233-a-novel-il-2-and-il-33-hybrid-cytokine-ameliorates-renal-injury
#3
Marta E Stremska, Sheethal Jose, Vikram Sabapathy, Liping Huang, Amandeep Bajwa, Gilbert R Kinsey, Poonam R Sharma, Saleh Mohammad, Diane L Rosin, Mark D Okusa, Rahul Sharma
CD4(+)Foxp3(+) regulatory T cells (Tregs) protect the kidney during AKI. We previously found that IL-2, which is critical for Treg homeostasis, upregulates the IL-33 receptor (ST2) on CD4(+) T cells, thus we hypothesized that IL-2 and IL-33 cooperate to enhance Treg function. We found that a major subset of Tregs in mice express ST2, and coinjection of IL-2 and IL-33 increased the number of Tregs in lymphoid organs and protected mice from ischemia-reperfusion injury (IRI) more efficiently than either cytokine alone...
May 24, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28538623/impact-of-a-novel-pi3-kinase-inhibitor-in-preventing-mitochondrial-dna-damage-and-damage-associated-molecular-pattern-accumulation-results-from-the-biochronicity-project
#4
George E Black, Kyle K Sokol, Donald M Moe, Jon Simmons, David Muscat, Victor Pastukh, Gina Capley, Olena Gorodnya, Mykhalo Ruchko, Mark B Roth, Mark Gillespie, Matthew J Martin
BACKGROUND: Despite improvements in the management of severely injured patients, development of multiple organ dysfunction syndrome (MODS) remains a morbid complication of traumatic shock. One of the key attributes of MODS is a profound bioenergetics crisis, for which the mediators and mechanisms are poorly understood. We hypothesized that metabolic uncoupling using an experimental PI3-kinase inhibitor, LY294002 (LY), may prevent mitochondrial abnormalities that lead to the generation of mitochondrial DNA (mtDNA) damage and the release of mtDNA damage associated molecular patterns (DAMPs) METHODS: 16 swine were studied using LY294002 (LY), a non-selective PI3-KI: Animals were assigned to Trauma only (TO, N=3); LY drug only (LYO, N=3); and Experimental (N=10), trauma + drug (LY+T) groups...
May 22, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28532702/trimetazidine-in-the-prevention-of-contrast-induced-nephropathy-in-chronic-kidney-disease
#5
Tarek A Ibrahim, Ramzy H El-Mawardy, Ahmed S El-Serafy, Ehab M El-Fekky
BACKGROUND: Contrast induced nephropathy (CIN) may be defined as Acute Renal Failure (ARF) that occurs within 24-72h of exposure to intra-venous or intra-arterial iodinated contrast media that cannot be attributed to other causes. CIN occurs in up to 5% of hospitalized patients with normal renal function prior to injection of contrast media. It occurs more frequently in patients with renal impairment particularly if associated with diabetic nephropathy. Among all procedures utilizing contrast agents for either diagnostic or therapeutic purposes, coronary angiography and percutaneous coronary interventions are associated with the highest rates of CIN...
February 10, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28515179/arginase-2-mediates-renal-ischemia-reperfusion-injury
#6
Wesley M Raup-Konsavage, Ting Gao, Timothy K Cooper, Sidney M Morris, W Brian Reeves, Alaa S Awad
Novel therapeutic interventions for preventing or attenuating kidney injury following ischemia/reperfusion injury (IRI) remain a focus of significant interest. Currently, there are no definitive therapeutic or preventive approaches available for ischemic acute kidney injury (AKI). Our objective is to determine (a) whether renal arginase activity or expression is increased in renal IRI and (b) whether arginase plays a role in development of renal IRI. The impact of arginase activity and expression on renal damage was evaluated in male C57BL/6J (WT) and arginase-2 deficient (Arg2(-/-) ) mice subjected to bilateral renal ischemia for 28min followed by reperfusion for 24h...
May 17, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28497082/evaluation-of-selenium-on-kidney-function-following-ischemic-injury-in-rats-protective-effects-and-antioxidant-activity
#7
Amin Hasanvand, Abolfazl Abbaszadeh, Saeideh Darabi, Afshin Nazari, Mohammadreza Gholami, Ali Kharazmkia
Introduction: Renal dysfunction is caused by ischemia-reperfusion (I/R) injury, which is a common problem in kidney surgery or kidney transplantation. The human body consists of enormous complex antioxidant systems, which inquires adequate selenium (Se) absorption for normal physiologic function. It is known that Se has some antioxidant effects. Objectives: In the present research, effects of the Se on damages caused by I/R injury investigated. Materials and Methods: In this experimental research, four groups of rats (weighing 220±10 g) used, include control group, I/R group, healthy group treated with Se for two weeks, and I/R group with two-week Se treatment...
2017: Journal of Renal Injury Prevention
https://www.readbyqxmd.com/read/28495528/hepatic-ischemia-reperfusion-injury-disrupts-the-homeostasis-of-kidney-primary-cilia-via-oxidative-stress
#8
Sang Jun Han, Hee-Seong Jang, Sung Young Seu, Hee-Jung Cho, Yoon Jin Hwang, Jee In Kim, Kwon Moo Park
Acute kidney injury (AKI) is a major complication of hepatic surgeries. The primary cilium protrudes to the lumen of kidney tubules and plays an important role in renal functions. Disruption of primary cilia homeostasis is highly associated with human diseases including AKI. Here, we investigated whether transient hepatic ischemia induces length change and deciliation of kidney primary cilia, and if so, whether reactive oxygen species (ROS)/oxidative stress regulates those. HIR induced damages to the liver and kidney with increases in ROS/oxidative stress...
May 8, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28487973/benefits-of-anti%C3%A2-inflammatory-therapy-in-the-treatment-of-ischemia-reperfusion-injury-in-the-renal-microvascular-endothelium-of-rats-with-return-of-spontaneous-circulation
#9
Wei Wei, Yong Xie, Shi-Chao Lai, Bo-Fu Liu, Ya-Rong He, Hai Hu, Yu Cao
The aim of the present study was to investigate whether prostaglandin E1 (PGE1), target temperature management (TTM) and a combined intervention involving the two would be beneficial as anti‑inflammatory therapies for ischemia/reperfusion (I/R) injury to the renal microvascular endothelium of rats with return of spontaneous circulation (ROSC). In each group of rats with different interventions, following successful cardiopulmonary resuscitation, the levels of thrombomodulin (TM), interleukin‑6 (IL‑6) and tumor necrosis factor‑α (TNF‑α) in the plasma were evaluated...
June 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28486919/metabolic-imbalance-of-homocysteine-and-hydrogen-sulfide-in-kidney-disease
#10
O Karmin, Yaw L Siow
Homocysteine (Hcy) and hydrogen sulfide (H2S) are important molecules produced during the metabolism of sulfur-containing amino acids. Hcy metabolism is central to the supply of methyl groups that are essential for biological function. Hcy can be either regenerated to methionine or metabolized to cysteine, a precursor for glutathione synthesis. Cystathionine-β-synthase (CBS) and cystathionine-γ-lyase (CSE) play a crucial role in metabolizing Hcy to cysteine through the transsulfuration pathway. These two enzymes are also responsible for H2S generation through desulfuration reactions...
May 9, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28482291/sustained-delivery-of-insulin-loaded-block-copolymers-potential-implications-on-renal-ischemia-reperfusion-injury-in-diabetes-mellitus
#11
Fei Tong, Xiangyuan Tang, Lei Luo, Xin Li, Wenquan Xia, Chao Lu, Daojun Liu
The purpose of this research was to evaluate the protective effects of insulin-loaded poly(ethylene glycol)-b-poly((2-aminoethyl-l-glutamate)-g-poly(l-lysine)) (PEG-b-P(ELG-g-PLL)) on renal ischemia/reperfusion (I/R) injury in rats with diabetes mellitus. Rats were preconditioned with free insulin or insulin/PEG-b-P(ELG-g-PLL) polyplexes, then subjected to renal I/R. The blood and kidneys were then harvested, Glucose uptake rate, glucose transporter 4 (GULT4) mRNA level, cell membrane GULT4 content and GULT4 expression were measured, the level of serum creatinine and blood urea nitrogen were determined, the activity of superoxide dismutase and inducible nitric oxide synthase, the content of malondialdehyde and nitric oxide, reactive oxygen species (ROS) production and nuclear factor κB (NF-κB) mRNA level, Bcl-2 assaciated x protein (Bax) mRNA and B cell lymphoma/lewkmia-2 (Bcl-2) mRNA level, and the expression of protein 47kDa phagocyte oxidase (p47phox) in renal tissues were measured...
May 5, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28479435/surgical-repair-of-a-living-donor-kidney-graft-artery-kink-by-a-post-anastomotic-external-iliac-artery-rotation-and-re-anastomosis
#12
Raphael Meier, Ian Fournier, Christian Toso, Thierry Berney, Marek Bednarkiewicz
A 61-year-old man received a living-donor kidney graft for an end-stage renal disease. In the postoperative course the patient was oliguric and needed dialysis. The postoperative Doppler showed a normal peak systolic velocity and maintained parenchymal perfusion associated with a parvus tardus signal. The patient was operated and a kinked renal artery was found. To reposition the artery, the distal iliac artery was clamped, sectioned, shortened and re-anastomosed after a 90° axial rotation. This innovative technic allowed restoration of a normal flow in the parenchyma and avoided an additional clamping, cooling, ischemia and re-anastomosis/reperfusion of the graft...
May 4, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28476205/therapeutic-efficacy-of-human-umbilical-cord-mesenchymal-stem-cells-transplantation-against-renal-ischemia-reperfusion-injury-in-rats
#13
Sohair R Fahmy, Amel M Soliman, Mervat El Ansary, Samah Abd Elhamid, Heba Mohsen
BACKGROUND: Acute kidney injury (AKI) is a common clinical problem raising the urgent needs to develop new strategies for treatment. The present study investigated the therapeutic potential of human umbilical cord - mesenchymal stem cells (HUC-MSCs) transplantation against renal ischemia/reperfusion injury (IRI) in rats. METHODS: Twenty four male Wistar rats were assigned into two main groups, sham group (control group) and I/R group. I/R group was injected in the tail vein with either phosphate buffer saline (PBS) or HUC-MSCs...
April 25, 2017: Tissue & Cell
https://www.readbyqxmd.com/read/28472797/up-regulation-of-hmgb1-exacerbates-renal-ischemia-reperfusion-injury-by-stimulating-inflammatory-and-immune-responses-through-the-tlr4-signaling-pathway-in-mice
#14
Chuan-Bao Chen, Long-Shan Liu, Jian Zhou, Xiao-Ping Wang, Ming Han, Xing-Yuan Jiao, Xiao-Shun He, Xiao-Peng Yuan
BACKGROUND/AIMS: The aim of this study was to elucidate how high-mobility group box 1 (HMGB1) exacerbates renal ischemic-reperfusion injury (IRI) by inflammatory and immune responses through the toll-like receptor 4 (TLR4) signaling pathway. METHODS: A total of 30 wild-type (WT) mice and 30 TLR4 knockout (TLR4-/-) mice were selected and then randomly assigned to the Sham, I/R or HMGB1 groups. The serum and kidney tissues of all mice were collected 24 h after the perfusion...
May 3, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28471234/protective-effects-of-diltiazem-and-tadalafil-on-shock-wave-induced-kidney-injury-in-rats
#15
G Ozmerdiven, B A Vuruskan, O Kaygisiz, H Vuruskan
BACKGROUND: We aimed to compare the protective effects of tadalafil and diltiazem on renal histology after ischemia and reperfusion injury in a rat model of shock wave lithotripsy. METHODS: A total of 40 adult, male Sprague-Dawley rats were randomized into four groups as follows; control group (group C), group S (SWL + nephrectomy), group T (SWL + tadalafil given before nephrectomy) and group D (SWL + diltiazem given before nephrectomy). Both kidneys were evaluated regarding tubular damage, peritubular fibrosis and heat shock protein-70 (HSP-70) immune-expression of glomeruli, cortical and medullar collector tubules on light microscopy...
2017: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/28471232/protective-effect-of-oxymatrine-against-renal-ischemia-reperfusion-injury-in-rats
#16
H Ozturk, A Cetinkaya, F Yilmaz, H Ozturk
BACKGROUND: Renal ischemia/reperfusion (I/R) injury is a common cause of acute kidney injury. The pathologic mechanisms underlying renal I/R injury are complicated, involving reactive oxygen species, necrosis, cell apoptosis, and inflammation, but the exact mechanisms remain unclear. OBJECTIVES: This study aimed to investigate the effect of oxymatrine (OMT) on renal I/R injury and its underlying mechanism. METHODS: Thirty male Sprague-Dawley rats were randomly allocated to three groups (n = 10): the sham-control group, the renal I/R-untreated (I/R-untreated) group, and the I/R-OMT group...
2017: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/28469775/melatonin-promoted-renal-regeneration-in-folic-acid-induced-acute-kidney-injury-via-inhibiting-nucleocytoplasmic-translocation-of-hmgb1-in-tubular-epithelial-cells
#17
Fengming Zhu, Octavia Ls Chong Lee Shin, Huzi Xu, Zhi Zhao, Guangchang Pei, Zhizhi Hu, Juan Yang, Yanchao Guo, Jingyi Mou, Jie Sun, Han Zhu, Yuxi Wang, Meng Wang, Qian Yang, Wenhui Liao, Gang Xu, Rui Zeng, Ying Yao
Melatonin (N-acetyl-5-methoxytryptamine), a circadian-regulating hormone, has been reported to exert a protective role during acute kidney injury (AKI) induced by renal ischemia-reperfusion injury (I/R). High-mobility group box 1 (HMGB1) is a novel member of the damage-associated molecular pattern (DAMP) family, and has been verified to be an inflammatory cytokine mediating AKI induced by I/R and cisplatin. However, the effect of melatonin on HMGB1, as well as the relationship of these two with folic acid induced AKI are elusive...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28466657/a-review-on-potential-involvement-of-trpv1-channels-in-ischemia-reperfusion-injury
#18
Puneet Kaur Randhawa, Amteshwar Singh Jaggi
Besides functioning as thermosensors, transient receptor potential vanilloid 1 (TRPV1) channels play a pivotal role in ischemia-reperfusion injury. Transient receptor potential vanilloid 1 channel activation attenuates ischemia-reperfusion-induced injury in various organs including the heart, lungs, kidneys, and the brain. Transient receptor potential vanilloid 1 channels are expressed on the sensory neurons innervating the myocardium, ventricles of the heart, epicardial surface of the heart, endothelial cells, and the vascular smooth muscle cells...
January 1, 2017: Journal of Cardiovascular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28466227/protective-effects-and-mechanisms-of-shenhua-tablet-on-toll-like-receptors-in-rat-model-of-renal-ischemia-reperfusion-injury
#19
Qing-Ping Li, Ri-Bao Wei, Xi Yang, Xiao-Yong Zheng, Ting-Yu Su, Meng-Jie Huang, Zhong Yin, Xiang-Mei Chen
OBJECTIVES: To investigate the protective effects and potential mechanisms of Shenhua Tablet (, SHT) on the toll-like receptors (TLRs)-mediated signaling pathways in a rat model of kidney ischemia-reperfusion injury (IRI). METHODS: Sixty male Wistar rats were randomly divided into 5 groups: sham surgery, model control, astragaloside (150 mg•kg(-1)•d(-1)), low- and high-dose SHT (1.5 and 3.0 g•kg(-1)•d(-1), repectively) groups. One week after drug treatment, rats underwent surgery to establish the IRI models...
May 3, 2017: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/28466106/augmenter-of-liver-regeneration-regulates-autophagy-in-renal-ischemia-reperfusion-injury-via-the-ampk-mtor-pathway
#20
Tao Pu, Xiao-Hui Liao, Hang Sun, Hui Guo, Xiao Jiang, Jun-Bo Peng, Ling Zhang, Qi Liu
Autophagy may have protective effects in renal ischemia-reperfusion (I/R) injury, although the underlying mechanisms remain unclear. Augmenter of liver regeneration (ALR), a widely distributed multifunctional protein that is originally identified as a hepatic growth factor, may participate in the process of autophagy. To investigate the role of ALR in autophagy, ALR expression is knocked-down in human kidney 2 (HK-2) cells with short hairpin RNA lentivirals. Then, the level of autophagy is measured in the shRNA/ALR group and the shRNA/control group in an in vitro model of ischemia-reperfusion (I/R)...
May 2, 2017: Apoptosis: An International Journal on Programmed Cell Death
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