keyword
MENU ▼
Read by QxMD icon Read
search

Oxidant stress , endothelial damage

keyword
https://www.readbyqxmd.com/read/28077855/the-nox2-derived-reactive-oxygen-species-damaged-endothelial-nitric-oxide-system-via-suppressed-bkca-skca-in-preeclampsia
#1
Jie Chen, Qinqin Gao, Lin Jiang, Xueqin Feng, Xiaolin Zhu, Xiaorong Fan, Caiping Mao, Zhice Xu
The endothelial nitric oxide (NO) system may be damaged in preeclampsia; however, the involved mechanisms are unclear. In this study, we used primary human umbilical vein endothelial cells (HUVECs) to evaluate the endothelial NO system in preeclampsia and to determine the underlying mechanisms that are involved. We isolated and cultured HUVECs from normal and preeclamptic pregnancies and evaluated endothelial NO synthase enzyme (eNOS) expression and NO production. Whole-cell K(+) currents and oxidative stress were also determined in normal and preeclamptic HUVECs...
January 12, 2017: Hypertension Research: Official Journal of the Japanese Society of Hypertension
https://www.readbyqxmd.com/read/28061407/the-antioxidant-role-of-agomelatine-and-gallic-acid-on-oxidative-stress-in-stz-induced-type-i-diabetic-rat-testes
#2
Gurkan Yigitturk, Ahmet Cagdas Acara, Oytun Erbas, Fatih Oltulu, Nefise Ulku Karabay Yavasoglu, Aysegul Uysal, Altug Yavasoglu
Diabetes is a multisystem disorder and its effects are observed on the reproductive system. One of the main causes of testicular tissue damage is diabetes-induced overproduction of reactive oxygen species and glycated end products. The main objectives of this study were to investigate the possible effects of agomelatine (AG) and gallic acid (GA) in suppressing oxidative stress in Type I diabetes induced testicular damage. A total of 28 adult male rats were included in the study. Diabetes was induced by intraperitoneal injection of streptozocin (STZ, 55mg/kg) to 21 rats, which were then randomly assigned to 3 groups; 1mL saline solution was given to the diabetes+saline group by oral gavage, 20mg/kg/day oral AG was given to the diabetes+AG group, and 20mg/kg/day oral GA was given to the diabetes+GA group for 4 weeks...
January 3, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28025032/the-metabolic-syndrome-and-chronic-kidney-disease
#3
REVIEW
Xin Zhang, Lilach O Lerman
The metabolic syndrome (MetS) is a cluster of cardiovascular risk factors including insulin resistance (IR), dyslipidemia, and hypertension, which may also foster development of chronic kidney disease. The mechanisms of MetS-induced kidney disease are not fully understood. The purpose of this review is to summarize recent discoveries regarding the impact of MetS on the kidney, particularly on the renal microvasculature and cellular mitochondria. Fundamental manifestations of MetS include IR and adipose tissue expansion, the latter promoting chronic inflammation and oxidative stress that exacerbate IR...
December 9, 2016: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/28006934/hypertriglyceridemic-rats-fed-high-fat-diet-as-a-model-of-metabolic-syndrome
#4
B Kaprinay, B Lipták, L Slovák, K Švík, V Knezl, R Sotníková, Z Gáspárová
People with metabolic syndrome have higher risk of cardiovascular diseases then those without. The aim of the work was to investigate whether high fat diet administered to Prague hereditary hypertriglyceridemic (HTG) rats can induce signs of metabolic syndrome (MetS). Our results showed that HTG rats fed high fat diet (HTGch) had disturbed glucose metabolism and also lipid metabolism - increased serum triacylglycerols (TAG), total cholesterol (Ch), low-density lipoprotein-Ch (LDL-Ch), and decreased high-density lipoprotein-Ch (HDL-Ch)...
December 21, 2016: Physiological Research
https://www.readbyqxmd.com/read/28004401/hypoxia-inducible-factors-as-neuroprotective-agent-in-alzheimer-s-disease
#5
REVIEW
Ben Sundra Ashok, Thekkuttuparambil Ananthanarayanan Ajith, Senthilkumar Sivanesan
Beta amyloid (Aβ)-42 peptide and phosphorylated tau protein had been demonstrated as the pathological hallmarks of Alzheimer's disease (AD). A gradual decline of oxygen and glucose supply to the brain during aging or hypoxia was manifested as contributing factors to hypometabolism. The brain regions susceptible to hypometabolism are hippocampus, entorhinal cortex and cognition-associated neocortical regions like parietal, temporal and frontal cortex. In AD patients, the brain regions with hypometabolism can trigger overexpression of amyloid precursor protein and decreased the clearance of Aβ...
December 22, 2016: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/27996266/blueberry-anthocyanin-enriched-extracts-attenuate-fine-particulate-matter-pm2-5-induced-cardiovascular-dysfunction
#6
Ziyu Wang, Wei Pang, Congcong He, Yibo Li, Yugang Jiang, Changjiang Guo
Blueberry anthocyanin-enriched extracts (BAE) at three doses (0.5, 1.0, and 2.0 g/kg) were administered by oral gavage to rats exposed to 10 mg/kg fine particulate matter (PM2.5) three times a week. A positive control group was exposed to PM2.5 without BAE treatment. We analyzed heart rate (HR), electrocardiogram (ECG), and histopathology, and biomarkers of cardiovascular system injuries, systemic inflammation, oxidative stress, endothelial function, and apoptosis. Results indicated that BAE, particularly at 1...
December 20, 2016: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/27995330/piceatannol-attenuates-homocysteine-induced-endoplasmic-reticulum-stress-and-endothelial-cell-damage-via-heme-oxygenase-1-expression
#7
Jin-Sang Kil, Sun-Oh Jeong, Hun-Taeg Chung, Hyun-Ock Pae
A growing body of evidence implicates endoplasmic reticulum (ER)-induced cellular dysfunction and apoptosis as important factors to a variety of diseases. In endothelial cells (ECs), the sulfur-containing amino acid homocysteine (Hcy) causes EC apoptosis and reactive oxygen species (ROS) generation through induction of ER stress. Here, we have investigated whether piceatannol (Pic), a resveratrol analog, could protect ECs against Hcy-induced apoptosis, oxidative stress and ER stress, with specific emphasis on heme oxygenase-1 (HO-1)...
December 20, 2016: Amino Acids
https://www.readbyqxmd.com/read/27993148/blood-transfusion-improves-renal-oxygenation-and-renal-function-in-sepsis-induced-acute-kidney-injury-in-rats
#8
Lara Zafrani, Bulent Ergin, Aysegul Kapucu, Can Ince
BACKGROUND: The effects of blood transfusion on renal microcirculation during sepsis are unknown. This study aimed to investigate the effect of blood transfusion on renal microvascular oxygenation and renal function during sepsis-induced acute kidney injury. METHODS: Twenty-seven Wistar albino rats were randomized into four groups: a sham group (n = 6), a lipopolysaccharide (LPS) group (n = 7), a LPS group that received fluid resuscitation (n = 7), and a LPS group that received blood transfusion (n = 7)...
December 20, 2016: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/27983965/cyanidin-3-glucoside-attenuates-angiotensin-ii-induced-oxidative-stress-and-inflammation-in-vascular-endothelial-cells
#9
Sivanan Sivasinprasasn, Rungusa Pantan, Sarinthorn Thummayot, Jiraporn Tocharus, Apichart Suksamrarn, Chainarong Tocharus
Angiotensin II (Ang II) causes oxidative stress and vascular inflammation, leading to vascular endothelial cell dysfunction, and is associated with the development of inflammatory cardiovascular diseases such as atherosclerosis. Therefore, interventions of oxidative stress and inflammation may contribute to the reduction of cardiovascular diseases. Cyanidin-3-glucoside (C3G) plays a role in the prevention of oxidative damage in several diseases. Here, we investigated the effect of C3G on Ang II-induced oxidative stress and vascular inflammation in human endothelial cells (EA...
October 28, 2016: Chemico-biological Interactions
https://www.readbyqxmd.com/read/27977895/a-soluble-form-of-psgl-1-requires-nrf2-signaling-to-protect-liver-transplant-endothelial-cells-against-ischemia-reperfusion-injury
#10
Cheng Zhang, Yu Zhang, Yuanxing Liu, Yuan Liu, Shoichi Kageyama, Xiu-da Shen, Feng Gao, Shusen Zheng, Ronald W Busuttil, Gray D Shaw, Haofeng Ji, Jerzy W Kupiec-Weglinski
Liver endothelial cell (LEC) damage is essential in the pathogenesis of ischemia-reperfusion injury (IRI) in transplant recipients. We analyzed the mechanism of LEC resistance against IRI by using a novel recombinant soluble form of PSGL-1 (Tandem P-Selectin Glycoprotein Ligand-Immunoglobulin; TSGL-Ig) in a mouse model of hepatic cold preservation (4°C in UW for 20h) and syngeneic orthotopic liver transplantation (OLT). Unlike in controls, TSGL-Ig protected OLT against IR-stress, evidenced by depressed sALT levels, well-preserved hepatic architecture, and improved survival (42% vs...
December 15, 2016: American Journal of Transplantation
https://www.readbyqxmd.com/read/27960187/rnai-mediated-down-regulation-of-cd47-protects-against-ischemia-reperfusion-induced-myocardial-damage-via-activation-of-enos-in-a-rat-model
#11
Hui-Bo Wang, Jun Yang, Jia-Wang Ding, Li-Hua Chen, Song Li, Xiao-Wen Liu, Chao-Jun Yang, Zhi-Xin Fan, Jian Yang
BACKGROUND/AIMS: Oxidative stress is strongly implicated in the pathogenesis of myocardial damage caused by ischemia reperfusion (I/R). Previous studies have confirmed that cardiac CD47 drives left ventricular heart failure. However, the role for CD47 in myocardial I/R injury (MIRI) has not previously been proposed. This study was designed to investigate whether down-regulation of CD47 using RNA interference (RNAi) technology can relieve inhibition of nitric oxide signaling and attenuate myocardial damage in a rat model of I/R...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27940206/hydroxytyrosol-ameliorates-metabolic-cardiovascular-and-liver-changes-in-a-rat-model-of-diet-induced-metabolic-syndrome-pharmacological-and-metabolism-based-investigation
#12
Hemant Poudyal, Nikolaos Lemonakis, Panagiotis Efentakis, Evangelos Gikas, Maria Halabalaki, Ioanna Andreadou, Leandros Skaltsounis, Lindsay Brown
Metabolic syndrome is a clustering of interrelated risk factors for cardiovascular disease and diabetes. The Mediterranean diet has been proposed as an important dietary pattern to confer cardioprotection by attenuating risk factors of metabolic syndrome. Hydroxytyrosol (HT) is present in olive fruit and oil, which are basic constituents of the Mediterranean diet. In this study, we have shown that treatment with HT (20mg/kg/d for 8 weeks) decreased adiposity, improved impaired glucose and insulin tolerance, improved endothelial function with lower systolic blood pressure, decreased left ventricular fibrosis and resultant diastolic stiffness and reduced markers of liver damage in a diet-induced rat model of metabolic syndrome...
December 8, 2016: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/27939630/endosulfan-inhibits-proliferation-through-the-notch-signaling-pathway-in-human-umbilical-vein-endothelial-cells
#13
Jialiu Wei, Lianshuang Zhang, Lihua Ren, Jin Zhang, Yang Yu, Ji Wang, Junchao Duan, Cheng Peng, Zhiwei Sun, Xianqing Zhou
Our previous research showed that endosulfan triggers the extrinsic coagulation pathway by damaging endothelial cells and causes hypercoagulation of blood. To identify the mechanism of endosulfan-impaired endothelial cells, we treated human umbilical vein endothelial cells (HUVECs) with different concentrations of endosulfan, with and without an inhibitor for Notch, N-[N-(3, 5-difluorophenacetyl)-1-alanyl]S-Phenylglycinet-butylester (DAPT, 20 μM), or a reactive oxygen species (ROS) scavenger, N-Acetyl-l-cysteine (NAC, 3 mM), for 24 h...
February 2017: Environmental Pollution
https://www.readbyqxmd.com/read/27936392/rutin-protects-endothelial-dysfunction-by-disturbing-nox4-and-ros-sensitive-nlrp3-inflammasome
#14
Wei Wang, Qiu-Hong Wu, Yong Sui, Yan Wang, Xin Qiu
High glucose induced endothelial dysfunction is blamed for initiation of vascular complication in Type 2 diabetes mellitus. Rutin has been described in possessing comprehensive pharmacological activities, but the mechanism involved in endothelial protection through regulating oxidative stress and damage is still ambiguous. In the present study, rutin was evaluated in high glucose stimulated human umbilical vein endothelial cells (HUVECs) and high glucose diet-treated SD rats were applied to explored the molecular mechanism in rutin counteracting oxidative stress and damage...
December 6, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27921431/-short-term-and-long-term-glycemic-variability-and-its-relationship-to-microvascular-complications-of-diabetes
#15
Martin Prázný, Jan Škrha, Jan Šoupal, Jan Škrha Jr
Vascular complications of diabetes result from long lasting unsatisfactory glycemic control. We usually assess glycemic control based on the value of glycated hemoglobin HbA1c. The glycated hemoglobin test, however, says nothing about short-term glycemic fluctuations. Recently, continuous monitoring of glycemia has enabled us an in-depth assessment of changes in glucose concentrations, called glycemic variability. In connection with the research into short-term glycemic variability, also the study of long-term fluctuations in glycemic control based on HbA1c variability has now intensified...
2016: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/27920727/genetic-targeting-of-arginase-ii-in-mouse-prevents-renal-oxidative-stress-and-inflammation-in-diet-induced-obesity
#16
Ji Huang, Angana Rajapakse, Yuyan Xiong, Jean-Pierre Montani, François Verrey, Xiu-Fen Ming, Zhihong Yang
Obesity is associated with development and progression of chronic kidney disease (CKD). Recent evidence demonstrates that enhanced levels of the L-arginine:ureahydrolase, including the two isoenzymes arginase-I (Arg-I) and arginase-II (Arg-II) in vascular endothelial cells promote uncoupling of endothelial nitric oxide synthase (eNOS), leading to increased superoxide radical anion and decreased NO production thereby endothelial dysfunction. Arg-II but not Arg-I is abundantly expressed in kidney and the role of Arg-II in CKD is uncertain and controversial...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27919332/effects-of-ionizing-radiation-on-the-mammalian-brain
#17
Daniela Hladik, Soile Tapio
Epidemiological studies on the atomic-bomb survivors, cancer survivors and occupational cohorts provide strong evidence for multifaceted damage to brain after ionizing radiation. Radiation-induced late effects may manifest as brain tumors or cognitive impairment. Decreased neurogenesis and differentiation, alteration in neural structure and synaptic plasticity as well as increased oxidative stress and inflammation are suggested to contribute to adverse effects in the brain. In addition to neural stems cells, several brain-specific mature cell types including endothelial and glial cells are negatively affected by ionizing radiation...
October 2016: Mutation Research
https://www.readbyqxmd.com/read/27915246/neutrophil-dependent-pentraxin-3-and-reactive-oxygen-species-production-modulate-endothelial-dysfunction-in-haemodialysis-patients
#18
Maria Pia dell'Oglio, Simona Simone, Marco Ciccone, Roberto Corciulo, Michele Gesualdo, Annapaola Zito, Francesca Cortese, Giuseppe Castellano, Margherita Gigante, Loreto Gesualdo, Giuseppe Grandaliano, Giovanni Battista Pertosa
BACKGROUND: The aim of this study was to investigate neutrophil activation and its role in long pentraxin-3 (PTX3) release and oxidative stress generation during haemodialysis (HD) and to correlate neutrophil PTX3 and oxidant expression with endothelial dysfunction. METHODS: Forty-seven uraemic patients on stable HD, 12 healthy subjects and 15 patients with congestive heart failure (New York Heart Association classes III and IV) were enrolled. Neutrophil PTX3 protein expression was evaluated by confocal microscopy...
December 3, 2016: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/27913210/trpv4-activation-of-endothelial-nitric-oxide-synthase-resists-nonalcoholic-fatty-liver-disease-by-blocking-cyp2e1-mediated-redox-toxicity
#19
Ratanesh K Seth, Suvarthi Das, Diptadip Dattaroy, Varun Chandrashekaran, Firas Alhasson, Gregory Michelotti, Mitzi Nagarkatti, Prakash Nagarkatti, Anna Mae Diehl, P Darwin Bell, Wolfgang Liedtke, Saurabh Chatterjee
NAFLD is a clinically progressive disease with steatosis, inflammation, endothelial dysfunction and fibrosis being the stages where clinical intervention becomes necessary. Lack of early biomarkers and absence of a FDA approved drug obstructs efforts for effective treatment. NAFLD progression is strongly linked to a balance between liver injury, tissue regeneration and the functioning of endogenous defense mechanisms. The failure of the defense pathways to resist the tissue damage arising from redox stress, one of the "multiple hits" in disease progression, give rise to heightened inflammation and occasional fibrosis...
January 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/27909964/oxidative-stress-and-biochemical-markers-of-endothelial-dysfunction-and-organ-damage-under-conditions-of-experimental-nonferrous-metal-intoxication
#20
F S Dzugkoeva, I V Mozhaeva, S G Dzugkoev, O I Margieva, A I Tedtoeva, M A Otiev
Chronic nickel intoxication caused by parenteral nickel chloride administration (0.5 mg/kg of body weight) to Wistar rats led to ROS generation inducing LPO in erythrocyte membranes and homogenates of renal, liver, and myocardial tissue. Superoxide dismutase (SOD) activity was inhibited, while catalase activity and ceruloplasmin concentration increased. LPO and its products disrupted nitric oxide production and reduced its bioavailability, which led to the development of endothelial dysfunction and impaired microcirculatory hemodynamics...
December 2016: Bulletin of Experimental Biology and Medicine
keyword
keyword
20941
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"