keyword
MENU ▼
Read by QxMD icon Read
search

ischemia and reperfusion

keyword
https://www.readbyqxmd.com/read/29346429/the-farnesoid-x-receptor-agonist-obeticholic-acid-upregulates-biliary-excretion-of-asymmetric-dimethylarginine-via-mate-1-during-hepatic-ischemia-reperfusion-injury
#1
Andrea Ferrigno, Laura Giuseppina Di Pasqua, Clarissa Berardo, Veronica Siciliano, Vittoria Rizzo, Luciano Adorini, Plinio Richelmi, Mariapia Vairetti
BACKGROUND: We previously showed that increased asymmetric dimethylarginine (ADMA) biliary excretion occurs during hepatic ischemia/reperfusion (I/R), prompting us to study the effects of the farnesoid X receptor (FXR) agonist obeticholic acid (OCA) on bile, serum and tissue levels of ADMA after I/R. MATERIAL AND METHODS: Male Wistar rats were orally administered 10mg/kg/day of OCA or vehicle for 5 days and were subjected to 60 min partial hepatic ischemia or sham-operated...
2018: PloS One
https://www.readbyqxmd.com/read/29346125/the-unknown-mechanism-of-exogenous-tetrahydrobiopterin-in-the-renal-protection-of-sheep-ischemia-and-reperfusion
#2
Hiroyuki Kinoshita, Kazunobu Otake, Takashi Yamasaki
No abstract text is available yet for this article.
January 17, 2018: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29345729/sinus-node-dysfunction-after-heart-transplantation-how-much-pacing-is-required
#3
Florian Ernst Martin Herrmann, Petra Wellmann, Sebastian Sadoni, René Schramm, Christian Hagl, Gerd Juchem
INTRODUCTION: We investigated the development of sinus node dysfunction (SND) requiring pacemaker implantation after heart transplant (HTx) especially regarding pacing burden in these patients. PATIENTS AND METHODS: Patients requiring a pacemaker for SND were compared to all other patients in an HTx cohort including transplant patients from 1981-2016. RESULTS: SND requiring pacemaker implantation developed in 118 patients (10%). These patients had received a biatrial anastomosis more frequently than those in the No SND group 95...
January 18, 2018: Clinical Transplantation
https://www.readbyqxmd.com/read/29345574/role-of-cd73-in-disease-promising-prognostic-indicator-and-therapeutic-target
#4
Jiayin Yang, Xiaohong Liao, Jerry Yu, Ping Zhou
CD73, also known as ecto-5'-nucleotidase (eN, NT5E, EC3.13.5), is the rate-limiting enzyme for adenosine generation and is expressed on multiple cells. Its expression is significantly influenced by hypoxia and inflammatory factors. During inflammation, CD73 protects endothelial barrier function and inhibits leukocyte trafficking. CD73 also promotes M2 macrophages (anti-inflammatory phenotype). In addition, CD73 is expressed on Treg cells and mediates immune suppression through adenosine. CD73 serves as an essential regulator for the immunity and inflammation...
January 16, 2018: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29345532/ischemic-pre-conditioning-does-not-influence-maximal-sprint-acceleration-performance
#5
Kyle M A Thompson, Alanna K Whinton, Shane Ferth, Lawrence L Spriet, Jamie F Burr
Ischemic pre-conditioning (IPC) was initially developed to protect the myocardium from ischemia through altered cardiocyte metabolism. Due to the observed effects on metabolism and oxygen kinetics, IPC gained interest as a potential ergogenic aid in sport. Limited research evaluating the effects of IPC on maximal short-duration activities has been performed and of the existing literature, mixed outcomes resulting from intra-subject variation may have clouded the efficacy of this technique for enhancing sprint performance...
January 18, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29345393/the-protective-effect-of-spinal-cord-stimulation-postconditioning-against-spinal-cord-ischemia-reperfusion-injury-in-rabbits
#6
Huixian Li, Xiuhua Dong, Mu Jin, Weiping Cheng
BACKGROUND: Delayed paraplegia due to spinal cord ischemia/reperfusion injury (IRI) remains one of the most severe complications of thoracoabdominal aneurysm surgery, for which effective prevention and treatment is still lacking. OBJECTIVES: The current study investigates whether spinal cord stimulation (SCS) postconditioning has neuroprotective effects against spinal cord IRI. METHOD: Ninety-six New Zealand white male rabbits were randomly divided into four groups as follows: a sham group and three experimental groups (C group, 2 Hz group, and 50 Hz group) n = 24/group...
January 18, 2018: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/29345050/metabolic-alterations-in-a-rat-model-of-hepatic-ischemia-reperfusion-injury-in-vivo-hyperpolarized-13-c-mrs-and-metabolic-imaging
#7
Chung-Man Moon, Sang-Soo Shin, Nam-Yeol Lim, Seul-Kee Kim, Yang-Joon Kang, Hyoung-Ook Kim, Seung-Jin Lee, Byung-Hyun Beak, Gwang-Woo Jeong
BACKGROUND & AIMS: Despite a number of studies addressing the pathophysiology of hepatic IRI, a gold standard test for early diagnosis and evaluation of IRI remains elusive. This study investigated the metabolic alterations in a rat model of hepatic IRI using the in vivo hyperpolarized ¹³C MRS and metabolic imaging. METHODS: Hyperpolarized 13 C MRS with IVIM-DWI were performed on the liver of seven sham-operated control rats, and seven rats before and after hepatic IRI...
January 18, 2018: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/29344983/anti-inflammatory-effect-of-4-methylcyclopentadecanonein-rats-submitted-to-ischemic-stroke
#8
Yan Jin, Fang Wei, Xiaoli Dai, Min Qi, Yukui Ma
The present study aimed to investigate the anti-inflammatory effect of 4-methylcyclopentadecanone (4-MCPC) in rats suffering from a cerebral ischemia/ reperfusion (I/R) injury. In this study, the focal cerebral ischemia in rats was induced by middle cerebral artery occlusion (MCAO) for 2 h, and the rats were treated with 4-MCPC (8 mg/kg) just 0.5 h before reperfusion. The ischemic infarct volume was recorded 24 h after the MCAO. In addition, myeloperoxidase (MPO) activity and TNF-α and IL-1β levels in the ischemic cerebral cortex were determined by ELISA, while nuclear translocation of NF-κB p65 subunit and expression of p-IκBα were investigated by western blotting...
January 18, 2018: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/29344828/neuroprotective-effect-of-p-coumaric-acid-in-mice-with-cerebral-ischemia-reperfusion-injuries
#9
Romgase Sakamula, Wachiryah Thong-Asa
Cerebral ischemia reperfusion (IR) is associated with neuronal death, which leads to disability and cognitive decline. The pathomechanism occurs because ischemia is exacerbated during the reperfusion period. Neuronal damage susceptibility depends on the affected brain areas and the duration of ischemia. Prevention and supplementation to neurons may help them endure during IR and further benefit them in rehabilitation. We investigated the protective effect of p-coumaric acid (PC) on cerebral IR injuries in mice...
January 17, 2018: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29344719/phosphorylation-of-vasodilator-stimulated-phosphoprotein-contributes-to-myocardial-ischemic-preconditioning
#10
David Köhler, Sofia-Iris Bibli, Lothar P Klammer, Judith M Roth, Rainer Lehmann, Ingrid Fleming, Tiago F Granja, Andreas Straub, Peter M Benz, Peter Rosenberger
Ischemic preconditioning (IP) is a well-known strategy to protect organs against cell death following ischemia. The previous work has shown that vasodilator-stimulated phosphoprotein (VASP) is involved in cytoskeletal reorganization and that it holds significant importance for the extent of myocardial ischemia reperfusion injury. Yet, the role of VASP during myocardial IP is, to date, not known. We report here that VASP phosphorylation at serine157 and serine239 is induced during hypoxia in vitro and during IP in vivo...
January 17, 2018: Basic Research in Cardiology
https://www.readbyqxmd.com/read/29344650/adrenomedullin-serves-a-role-in-the-humoral-pathway-of-delayed-remote-ischemic-preconditioning-via-a-hypoxia-inducible-factor-1%C3%AE-associated-mechanism
#11
Wenpei Dong, Ping Yu, Tielong Zhang, Chenzhuang Zhu, Jun Qi, Junhao Liang
Remote ischemic preconditioning (RIPC) is a minimally invasive method that provides protection by reducing injury to the heart, kidneys, brain and other tissues or organs. RIPC may improve the outcome in patients undergoing surgery. Although the role of RIPC has been studied, the results remain controversial. It is difficult to confirm whether RIPC has a kidney protective effect and the understanding of the preconditioning signal pathway involved remains unclear. In the present study, the effect of RIPC in urology was evaluated...
January 17, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29344510/ablation-of-fgfr2-in-fibroblasts-ameliorates-kidney-fibrosis-after-ischemia-reperfusion-injury-in-mice
#12
Zhuo Xu, Chunsun Dai
Background: Fibroblast growth factors (FGFs) are heparin-binding proteins involved in a variety of biological processes. However, the role and mechanisms of FGF/FGFR2 signaling in fibroblast activation and kidney fibrosis need further investigation. Methods: In this study, a mouse model with fibroblast-specific FGFR2 gene disruption was generated. The knockouts were born normal and no kidney dysfunction or histological abnormality was found within 2 months after birth...
December 2017: Kidney Diseases
https://www.readbyqxmd.com/read/29343518/fibroblast-specific-%C3%AE-catenin-signaling-dictates-the-outcome-of-aki
#13
Dong Zhou, Haiyan Fu, Liangxiang Xiao, Hongyan Mo, Hui Zhuo, Xiaojun Tian, Lin Lin, Jianhua Xing, Youhua Liu
AKI is a devastating condition with high morbidity and mortality. The pathologic features of AKI are characterized by tubular injury, inflammation, and vascular impairment. Whether fibroblasts in the renal interstitium have a role in the pathogenesis of AKI is unknown. In this study, we investigated the role of fibroblast-specific β-catenin signaling in dictating the outcome of AKI, using conditional knockout mice in which β-catenin was specifically ablated in fibroblasts (Gli1-β-cat-/-). After ischemia-reperfusion injury (IRI), Gli1-β-cat-/- mice had lower serum creatinine levels and less morphologic injury than Gli1-β-cat+/+ littermate controls...
January 17, 2018: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/29343040/-effect-of-picroside-%C3%A2-on-the-expression-of-mitochondrial-vdac1-after-cerebral-ischemia-reperfusion-in-rats
#14
S Li, T T Wang, L Zhai, W W Deng, Y L Guo, J X Jiang
Objective: To explore the effect of picroside Ⅱ on the expression of mitochondrial voltage-dependent anion channel 1 (VDAC1) in rats after cerebral ischemiareperfusion. Methods: A total of 70 Wistar rats models with middle cerebral artery occlusionreperfusion (MCAO/R) were randomly divided into the sham group, model group, picroside (Picr) group, ruthenium red (RuR) group, RuR+ Picr group, Spermine (Sper) group, Sper+ Picr group (n=10 per group). Modified neurological severity scale (mNSS) was used to evaluated the neurobehavioral function, the expression of reactive oxygen species (ROS) in brain tissues were measured by enzyme-linked immunosorbent assay (ELISA), the morphology of brain tissues was observed by hematoxylin-eosin (HE) staining, the apoptotic cells were counted by terminal deoxynucleotidyl transferase dUTP nick end labeling assay (TUNEL), and the expressions of VDAC1 and endonuclease G (EndoG) were determined by immunohistochemical assay and Western blot...
January 9, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29341964/renal-decapsulation-prevents-intrinsic-renal-compartment-syndrome-in-ischemia-reperfusion-induced-acute-kidney-injury-a-physiologic-approach
#15
Pablo Cruces, Pablo Lillo, Camila Salas, Tatiana Salomon, Felipe Lillo, Carlos González, Alejandro Pacheco, Daniel E Hurtado
OBJECTIVES: Acute kidney injury is a serious complication with unacceptably high mortality that lacks of specific curative treatment. Therapies focusing on the hydraulic behavior have shown promising results in preventing structural and functional renal impairment, but the underlying mechanisms remain understudied. Our goal is to assess the effects of renal decapsulation on regional hemodynamics, oxygenation, and perfusion in an ischemic acute kidney injury experimental model. METHODS: In piglets, intra renal pressure, renal tissue oxygen pressure, and dysoxia markers were measured in an ischemia-reperfusion group with intact kidney, an ischemia-reperfusion group where the kidney capsule was removed, and in a sham group...
February 2018: Critical Care Medicine
https://www.readbyqxmd.com/read/29341864/comparison-of-acute-kidney-injury-of-different-aetiology-reveals-in-common-mechanisms-of-tissue-damage
#16
Michael Hultström, Mediha Becirovic-Agic, Sofia Jönsson
Acute kidney injury (AKI) is a syndrome of reduced glomerular filtration rate (GFR) and urine production caused by a number of different diseases. It is associated with renal tissue damage. This tissue damage can cause tubular atrophy and interstitial fibrosis that leads to nephron loss and progression of chronic kidney disease (CKD). This review describes the in-common mechanisms behind tissue damage in AKI caused by different underlying diseases. Comparing six high-quality microarray studies of renal gene expression after AKI in disease models (gram-negative sepsis, gram-positive sepsis, ischemia-reperfusion, malignant hypertension, rhabdomyolysis and cisplatin toxicity) identified 5254 differentially expressed genes in at least one of the AKI models...
December 20, 2017: Physiological Genomics
https://www.readbyqxmd.com/read/29341803/licorice-pretreatment-protects-against-brain-damage-induced-by-middle-cerebral-artery-occlusion-in-mice
#17
Chiyeon Lim, Sehyun Lim, Byoungho Lee, Buyeo Kim, Suin Cho
Licorice is extracted from the roots of plants in the Glycyrrhiza genus, especially Glycyrrhiza uralensis in China and Korea. It has several pharmacological activities, including neuro-protective, anti-fungal, and anti-cariogenic effects. Ischemia/reperfusion-induced brain injury is a leading cause of adult disability and death; thus, the identification of anti-apoptotic, neuro-protective therapeutic agents is viewed as an attractive drug development strategy. Infarct volumes and the expression of several apoptosis-related proteins, including Bcl-xL, Bcl-2, caspase-8, and caspase-9, were evaluated by western blotting in the brains of mice subjected to middle cerebral artery occlusion (MCAO)...
January 17, 2018: Journal of Medicinal Food
https://www.readbyqxmd.com/read/29340110/curcumin-attenuates-myocardial-ischemia-reperfusion-injury
#18
Kun Liu, Honglin Chen, Qing-Sheng You, Qing Ye, Fei Wang, Shuo Wang, Shuang-Long Zhang, Kang-Jun Yu, Qi Lu
Background: Cardiovascular diseases (CVDs) are at a badly high-risk of morbidity and mortality in the world. Methods: Our study was attempted to investigate the cardioprotective role of curcumin. Hearts injury was assessed in isolated hearts and the rats of coronary artery ligated. Results and Conclusions: The inhibition of pro-inflammatory cytokines was observed by curcumin in coronary artery ligated rats. ST segment was also reduced by curcumin...
December 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29340072/hyperbaric-oxygen-protects-against-myocardial-reperfusion-injury-via-the-inhibition-of-inflammation-and-the-modulation-of-autophagy
#19
Chunxia Chen, Wan Chen, Yaoxuan Li, Yanling Dong, Xiaoming Teng, Zhihuan Nong, Xiaorong Pan, Liwen Lv, Ying Gao, Guangwei Wu
Our previous study demonstrated that hyperbaric oxygen (HBO) preconditioning protected against myocardial ischemia reperfusion injury (MIRI) and improved myocardial infarction. However, HBO's effect on MIRI-induced inflammation and autophagy remains unclear. In this study, we investigate the potential impact and underlying mechanism of HBO preconditioning on an MIRI-induced inflammatory response and autophagy using a ligation of the left anterior descending (LAD) coronary artery rat model. Our results showed that HBO restored myocardial enzyme levels and decreased the apoptosis of cardiomyocytes, which were induced by MIRI...
December 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29339643/effect-of-remote-ischemic-preconditioning-on-systemic-toxicity-and-ototoxicity-induced-by-cisplatin-in-rats-role-of-tnf-%C3%AE-and-nitric-oxide
#20
Marcos Jullian Barreto Martins, Avner Marcos Alves Batista, Yuri Neyson Ferreira Brito, Pedro Marcos Gomes Soares, Conceição da Silva Martins, Ronaldo de Albuquerque Ribeiro, Gerly Anne de Castro Brito, Marcos Rabelo de Freitas
BACKGROUND/AIMS: Cisplatin is a chemotherapeutic agent. The use of remote ischemic preconditioning (RIPC) was proposed after the observation that ischemic preconditioning of a cardiac vascular area could protect another completely distinctly. METHODS: This is an experimental study. Male Wistar rats were anesthetized, and they underwent a hearing evaluation via measurement of the brainstem auditory evoked potential (BSAEP). Then, cisplatin was administered intraperitoneally (IP) at a dose of 8 mg/kg/day for 4 consecutive days to group 1, whereas saline solution was administered IP to group 2...
January 17, 2018: ORL; Journal for Oto-rhino-laryngology and its related Specialties
keyword
keyword
33387
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"