keyword
MENU ▼
Read by QxMD icon Read
search

vasodilation

keyword
https://www.readbyqxmd.com/read/28930576/impact-of-chocolate-on-the-cardiovascular-health
#1
Maria Alessandra Gammone, Konstantinos Efthymakis, Francesca Romana Pluchinotta, Sonia Bergante, Guido Tettamanti, Graziano Riccioni, Nicolantonio D'Orazio
The antioxidants such as polyphenols, especially flavonols, present in large quantitites in cocoa, cause vasodilation, modulate inflammatory markers and cardiovascular health, and possess a range of protective cardiovascular effects. On the other hand, overconsumption of chocolate can lead to tachyarrhythmias, supraventricular tachycardia, atrial fibrillation, ventricular tachycardia and ventricular fibrillation due to its caffeine content. This review describes both the cardioprotective and adverse effects of chocolate and its constituents...
January 1, 2018: Frontiers in Bioscience (Landmark Edition)
https://www.readbyqxmd.com/read/28929822/genetic-and-ethnic-modulation-of-cardiovascular-toxicity-of-vascular-endothelial-growth-factor-inhibitors
#2
Yen-Chou Chen, Cheng-Chih Chung, Yung-Kuo Lin, Yi-Jen Chen
Vascular endothelial growth factor (VEGF) inhibitors, including monoclonal antibodies and tyrosine kinase inhibitors (TKIs), are important as anticancer treatments through curbing tumor angiogenesis and growth. VEGF inhibitors have significant cardiovascular effects. By blocking VEGF receptors, ligands, or signal pathways, VEGF inhibitors disturb the balance between vasodilation and vasoconstriction, undermine endothelial cell integrity, and activate cardiomyocyte apoptosis. VEGF inhibitors increase risks of hypertension, heart failure, thromboembolism, and arrhythmia...
September 20, 2017: Annals of Medicine
https://www.readbyqxmd.com/read/28929454/antihypertensive-therapies-and-left-ventricular-hypertrophy
#3
REVIEW
Elsayed Z Soliman, Ronald J Prineas
PURPOSE OF REVIEW: It is widely accepted that successful lowering of blood pressure (BP) in patients with hypertension leads to regression of left ventricular hypertrophy (LVH). However, whether differences exist among pharmacological BP-lowering therapies is debated. In this report, we discuss these differences in light of recent literature and the position of extant practice guidelines. RECENT FINDINGS: Studies comparing the effects of antihypertensive classes on LVH regression reached different conclusions, but the overall direction which is reflected in current society guidelines is that successful lowering of BP is more important than selection of an individual antihypertensive class...
September 19, 2017: Current Hypertension Reports
https://www.readbyqxmd.com/read/28927349/hospital-readmissions-after-elective-lower-extremity-vascular-procedures
#4
Todd R Vogel, Jamie B Smith, Robin L Kruse
Background This study evaluated risk factors associated with 30-day readmission after open and endovascular lower extremity revascularization. Methods Patients admitted with peripheral artery disease and lower extremity procedures were selected from national electronic medical record data, Cerner Health Facts® (2008-2014). Thirty-day readmission was determined. Logistic regression models identified characteristics independently associated with readmission. Results There were 2781 open and 2611 endovascular procedures...
January 1, 2017: Vascular
https://www.readbyqxmd.com/read/28925860/pharmacologic-and-perioperative-considerations-for-antihypertensive-medications
#5
Sher-Lu Pai, Ryan M Chadha, Joan M Irizarry Alvarado, Johnathan Ross Renew, Stephen Aniskevich
BACKGROUND: As the prevalence of hypertension continues to increase, physicians routinely encounter patients preoperatively receiving one or more cardiovascular medications to manage hypertension. Thus, the physician's knowledge of perioperative antihypertensive medication management is crucial to ensure patient safety. OBJECTIVE: We discuss the decisions to continue or stop antihypertensive medications to reduce the risk of perioperative complications. METHOD: We conducted a review of the original research studies, review articles, and editorials present on PubMed within the past 60 years...
September 18, 2017: Current Clinical Pharmacology
https://www.readbyqxmd.com/read/28925591/melinjo-gnetum-gnemon-seed-extract-consumption-during-lactation-improved-vasodilation-and-attenuated-the-development-of-hypertension-in-female-offspring-of-fructose-fed-pregnant-rats
#6
Rachael A Uson-Lopez, Saori Kataoka, Yuuka Mukai, Shin Sato, Masaaki Kurasaki
BACKGROUND: Fructose intake has been correlated with increased prevalence of metabolic disorders including hypertension. In pregnant rats, fructose intake has been reported to have adverse effects on the health of its offspring. This study investigated the effects of gestational maternal fructose consumption and if supplementation with melinjo seed extracts to the maternal diet during lactation could benefit the offspring in later life. METHODS: Pregnant rats were randomly divided into three groups: untreated (CC), fructose-treated (FC), and fructose and melinjo-treated (FM)...
September 19, 2017: Birth defects research
https://www.readbyqxmd.com/read/28925313/hemodynamics-and-oxygen-extraction-in-chronic-large-artery-steno-occlusive-disease-clinical-applications-for-predicting-stroke-risk
#7
Colin P Derdeyn
Depending on the adequacy of collateral sources of blood flow, arterial stenosis or occlusion may lead to reduced perfusion pressure and ultimately reduced blood flow in the distal territory supplied by that vessel. There are two well-defined compensatory mechanisms to reduced pressure or flow - autoregulatory vasodilation and increased oxygen extraction fraction. Other changes, such as metabolic downregulation, are likely. The positive identification of autoregulatory vasodilation and increased oxygen extraction fraction in humans is an established risk factor for future ischemic stroke in some disease states such as atherosclerotic carotid stenosis and occlusion...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28924814/the-prognostic-value-of-heart-rate-response-during-vasodilator-stress-myocardial-perfusion-imaging-in-patients-with-end-stage-renal-disease-undergoing-renal-transplantation
#8
Wael AlJaroudi, Chiedozie Anokwute, Ibtihaj Fughhi, Tania Campagnoli, Marwan Wassouf, Aviral Vij, Michael Kharouta, Andrew Appis, Amjad Ali, Rami Doukky
BACKGROUND: In asymptomatic end-stage renal disease (ESRD) patients undergoing vasodilator stress myocardial perfusion imaging (MPI) prior to renal transplantation (RT), the impact of pre-transplant heart rate response (HRR) to vasodilator stress on post-RT outcomes is unknown. METHODS: We analyzed a retrospective cohort of asymptomatic patients with ESRD who underwent a vasodilator stress SPECT-MPI and subsequently received RT. Blunted HRR was defined as HRR <28% for regadenoson stress and <20% for adenosine stress...
September 18, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28924736/vasoactive-agents-for-hepatorenal-syndrome-a-mixed-treatment-comparison-network-meta-analysis-and-trial-sequential-analysis-of-randomized-clinical-trials
#9
Kannan Sridharan, Gowri Sivaramakrishnan
BACKGROUND: Hepatorenal syndrome (HRS) is a common complication among patients with cirrhosis, primarily attributable to vasodilation of renal vessels. Vasoactive agents are commonly used to treat HRS. The present network meta-analysis compares the vasoactive agents used in HRS. METHODS: We searched electronic databases for appropriate randomized controlled clinical trials in patients with HRS, comparing active interventions with either placebo or standard of care...
September 18, 2017: Journal of General Internal Medicine
https://www.readbyqxmd.com/read/28924052/role-of-the-endothelial-caveolae-microdomain-in-shear-stress-mediated-coronary-vasorelaxation
#10
Tong Lu, Xiao-Li Wang, Qiang Chai, Xiaojing Sun, Gary C Sieck, Zvonimir S Katusic, Hon-Chi Lee
In this study, we determined the role of caveolae and the ionic mechanisms that mediate shear stress-mediated vasodilation (SSD). We found that both TRPV4 and SK channels are targeted to caveolae in freshly isolated bovine coronary endothelial cells (BCECs) and that TRPV4 and KCa2.3 (SK3) channels are co-immunoprecipitated by anti-caveolin-1 antibodies. Acute exposure of BCECs seeded in a capillary tube to 10 dynes/cm2 of SS resulted in activation of TRPV4 and SK currents. However, after incubation with HC067047 (TRPV4 inhibitor) SK currents could no longer be activated by SS, suggesting SK channel activation by SS was mediated through TRPV4...
September 18, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28923474/beyond-the-inhaled-nitric-oxide-in-persistent-pulmonary-hypertension-of-the-newborn
#11
REVIEW
Mei-Yin Lai, Shih-Ming Chu, Satyan Lakshminrusimha, Hung-Chih Lin
Persistent pulmonary hypertension (PPHN) is a consequence of failed pulmonary vascular transition at birth and leads to pulmonary hypertension with shunting of deoxygenated blood across the ductus arteriosus (DA) and foramen ovale (FO) resulting in severe hypoxemia, and it may eventually lead to life-threatening circulatory failure. PPHN is a serious event affecting both term and preterm infants in the neonatal intensive care unit. It is often associated with diseases such as congenital diaphragmatic hernia, meconium aspiration, sepsis, congenital pneumonia, birth asphyxia and respiratory distress syndrome...
August 10, 2017: Pediatrics and Neonatology
https://www.readbyqxmd.com/read/28921803/the-pathophysiology-of-arterial-vasodilatation-and-hyperdynamic-circulation-in-cirrhosis
#12
Søren Møller, Flemming Bendtsen
Patients with cirrhosis and portal hypertension often develop complications from a variety of organ systems leading to a multiple organ failure. The combination of liver failure and portal hypertension result in a hyperdynamic circulatory state partly owing to simultaneous splanchnic and peripheral arterial vasodilatation. Increases in circulatory vasodilators are believed to be due to portosystemic shunting and bacterial translocation leading to redistribution of the blood volume with central hypovolemia. Portal hypertension per se and increased splanchnic blood flow are mainly responsible for the development and perpetuation of the hyperdynamic circulation and the associated changes in cardiovascular function with development of cirrhotic cardiomyopathy, autonomic dysfunction, and renal dysfunction as part of a cardiorenal syndrome...
September 16, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28921630/metabolic-assessment-of-a-migraine-model-using-relaxation-enhanced-1-h-spectroscopy-at-ultrahigh-field
#13
Nastaren Abad, Jens T Rosenberg, Tangi Roussel, Dillon C Grice, Michael G Harrington, Samuel C Grant
PURPOSE: This study evaluates biochemical imbalances in a rat model that reflects dysfunctional pathways in migraine. The high sensitivity and spectral dispersion available to (1) H MRS at 21.1 T expands metabolic profiling in this migraine model to include lactate (Lac), taurine (Tau), aspartate, and Gly-a mixture of glycine, glutamine, and glutamate. METHODS: Sprague-Dawley male rats were administered in situ an intraperitoneal injection of nitroglycerin (NTG) to induce the migraine analogue or saline as a control...
September 17, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28919322/changes-in-vasodilation-following-myocardial-ischemia-reperfusion-in-rats
#14
Sarah Brøgger Kristiansen, Majid Sheykhzade, Lars Edvinsson, Kristian Agmund Haanes
BACKGROUND: Blockage of a coronary artery, usually caused by arteriosclerosis, can lead to life threatening acute myocardial infarction. Opening with PCI (percutaneous coronary intervention), may be lifesaving, but reperfusion might exacerbate the cellular damage, and changes in the endothelium are believed to be involved in this worsened outcome. AIM: The aim of the present study was to compare endothelial dependent and independent vasodilatory effect after experimental myocardial ischemia/reperfusion (I/R)...
September 14, 2017: Nitric Oxide: Biology and Chemistry
https://www.readbyqxmd.com/read/28918794/-airplane-travels-can-induce-headache
#15
Sebastian Bao Dinh Bui, Parisa Gazerani
Airplane headache is a common problem with 100 million passengers annually suffering from the condition. It has been suggested that the changes in the cabin pressure during take-off and landing may cause inflammation in sinus tissues. This can lead to elevated levels of prostaglandin E2 and vasodilation of cerebral arteries resulting in airplane headache. Current evidence suggests opportunities to develop a treatment plan by examining future potential drugs for reducing the prostaglandin E2 level or preventing the vasodilation of the cerebral arteries...
September 18, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/28917976/low-molecular-weight-fucoidan-ameliorates-hindlimb-ischemic-injury-in-type-2-diabetic-rats
#16
Zhiqiang Wang, Tiantian Liu, Xiaoping Chen, Hongjie You, Quanbin Zhang, Jingyi Xue, Yuanyuan Zheng, Dali Luo
ETHNOPHARMACOLOGICAL RELEVANCE: Low molecular weight fucoidan (LMWF), extracted from Laminaria japonica Areschoug, is a traditional Chinese medicine, commonly used to alleviate edema, particularly for feet with numbness and pain. AIM OF THE STUDY: Diabetic mellitus (DM) patients are at high risk of developing peripheral arterial disease (PAD). Individuals with DM and PAD co-morbidity have a much higher risk of critical limb ischemia. LMWF showed several beneficial effects, such as anti-inflammation, anti-thrombosis, and enhancing revascularization...
September 13, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28914189/a-hopeful-prospect-of-riociguat-as-a-soluble-guanylate-cyclase-stimulator-for-management-of-pressure-ulcers
#17
Soha Azadi, Hajar Ashrafi, Amir Azadi
Pressure ulcer remains as a common problem, especially developed in disabled patients and hence, subjected to continuous pressure for prolonged periods of time. Most of the studies investigating the preventive and therapeutic approaches have focused on wound cleansing, dressing and supportive strategies , as well as pharmacological therapy including zinc sulphate, vitamin A or phenytoin. Despite such efforts, pressure ulcer continues to impair the life quality and expectancy. Thus involving in the paradigm shift in biomedical studies, the recent ones focus on biological signaling pathways involving nitric oxide (NO)- soluble guanylatecyclase (sGC)- cyclic guanosine monophosphate (cGMP) contributing in vasodilation, reperfusion and oxygen delivery...
September 15, 2017: Current Drug Discovery Technologies
https://www.readbyqxmd.com/read/28913687/non-atherosclerotic-vascular-disease-in-women
#18
REVIEW
Lee Joseph, Esther S H Kim
Takayasu arteritis, fibromuscular dysplasia (FMD), spontaneous arterial dissection, Raynaud's phenomenon, and chilblains are vascular conditions that are associated with an increased predisposition in women and are often underdiagnosed. Takayasu arteritis has an incidence rate of 2.6 cases per million individuals per year in the USA and predominantly affects women of childbearing age. HLA-B5 genetic locus is linked with Takayasu arteritis susceptibility. Methods to determine active disease are limiting; currently utilized clinical and imaging findings and laboratory tests are of limited value for this purpose...
September 14, 2017: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28913547/probucol-prevents-the-attenuation-of-%C3%AE-2-adrenoceptor-mediated-vasodilation-of-retinal-arterioles-in-diabetic-rats
#19
Asami Mori, Kentaro Higashi, Shun Wakao, Kenji Sakamoto, Kunio Ishii, Tsutomu Nakahara
Probucol is an antihyperlipidemic drug with potent antioxidant properties. Oxidative stress plays an important role in the pathogenesis of diabetic retinopathy. In this study, we aimed to investigate the protective effects of probucol against diabetes-induced retinal vascular dysfunction in a rat model of diabetes. Diabetes was induced by a combination of streptozotocin treatment and D-glucose feeding, and retinal vasodilator responses were assessed by measuring the diameter of retinal arterioles. The vasodilator effect of salbutamol, a β2-adrenoceptor agonist, on retinal arterioles was significantly diminished 2 weeks after the induction of diabetes...
September 14, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28912722/repeated-mandibular-extension-in-rat-a-procedure-to-modulate-the-cerebral-arteriolar-tone
#20
Dominga Lapi, Maurizio Varanini, Antonio Colantuoni, Cristina Del Seppia, Sergio Ghione, Enza Fommei, Rossana Scuri
Previous data have shown both in the rat and in the human that a single mandibular extension lasting 10 min induces a significant important and prolonged reduction in blood pressure and heart rate, affecting also rat pial microcirculation by the release of endothelial factors. In the present work, we assessed whether repeated mandibular extension could further prolong these effects. We performed two mandibular extensions, the second mandibular extension being applied 10 min after the first one. The second mandibular extension produced a reduction in blood pressure and heart rate for at least 240 min...
2017: Frontiers in Physiology
keyword
keyword
8203
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"