keyword
MENU ▼
Read by QxMD icon Read
search

Endothelium

keyword
https://www.readbyqxmd.com/read/28943490/the-curcumin-induced-vasorelaxation-in-rat-superior-mesenteric-arteries
#1
Han Zhang, Huanhuan Liu, Yulong Chen, Yan Zhang
BACKGROUND: Curcumin (Cur) is a natural lipophilic polyphenol compound extracted from the rhizome of turmeric. Recently, protective effect of Cur on cardiovascular system is pay close attention. Some researches demonstrated that Cur could induce vascular relaxation in many arterial beds. However, relaxant effect of Cur on rat superior mesenteric artery is not clear. OBJECTIVE: The present study will investigate the vasorelaxant effect of Cur on rat superior mesenteric arteries and the mechanisms involved...
September 21, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28943342/mechanisms-of-platelet-activation-by-the-pneumococcus-and-the-role-of-platelets-in-community-acquired-pneumonia
#2
REVIEW
Ronald Anderson, Charles Feldman
There is increasing recognition of the involvement of platelets in orchestrating inflammatory responses, driving the activation of neutrophils, monocytes and vascular endothelium, which, if poorly controlled, may lead to microvascular dysfunction. Importantly, hyperreactivity of platelets has been implicated in the pathogenesis of myocardial injury and the associated particularly high prevalence of acute cardiovascular events in patients with severe community-acquired pneumonia (CAP), of which Streptococcus pneumoniae (pneumococcus) is the most commonly encountered aetiologic agent...
September 21, 2017: Journal of Infection
https://www.readbyqxmd.com/read/28942003/inhalation-exposure-to-three-dimensional-printer-emissions-stimulates-acute-hypertension-and-microvascular-dysfunction
#3
A B Stefaniak, R F LeBouf, M G Duling, J Yi, A B Abukabda, C R McBride, T R Nurkiewicz
Fused deposition modeling (FDM™), or three-dimensional (3D) printing has become routine in industrial, occupational and domestic environments. We have recently reported that 3D printing emissions (3DPE) are complex mixtures, with a large ultrafine particulate matter component. We and others have reported that inhalation of xenobiotic particles in this size range is associated with an array of cardiovascular dysfunctions. Sprague-Dawley rats were exposed to 3DPE aerosols via nose-only exposure for ~3h. Twenty-four hours later, intravital microscopy was performed to assess microvascular function in the spinotrapezius muscle...
September 20, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28941934/effects-of-dietary-nitrate-supplementation-on-the-response-to-extremity-cooling-and-endothelial-function-in-individuals-with-cold-sensitivity-a-double-blind-placebo-controlled-crossover-randomised-control-trial
#4
Clare M Eglin, Joseph T Costello, Stephen J Bailey, Mark Gilchrist, Heather Massey, Anthony I Shepherd
Individuals with cold sensitivity have low peripheral skin blood flow and skin temperature possibly due to reduced nitric oxide (NO•) bioavailability. Beetroot has a high concentration of inorganic nitrate and may increase NO-mediated vasodilation. Using a placebo-controlled, double blind, randomised, crossover design, this study tested the hypotheses that acute beetroot supplementation would increase the rate of cutaneous rewarming following a local cold challenge and augment endothelium-dependent vasodilation in cold sensitive individuals...
September 20, 2017: Nitric Oxide: Biology and Chemistry
https://www.readbyqxmd.com/read/28941609/association-of-apolipoproteins-b-and-a-1-with-markers-of-vascular-health-or-cardiovascular-events
#5
Yiming M Zhu, Subodh Verma, Marinda Fung, Matthew J McQueen, Todd J Anderson, Eva M Lonn
BACKGROUND: Apolipoprotein B (apoB) and apolipoprotein A-1 (apoA-1) are markers of lipoprotein metabolism. Although their relationship to cardiovascular disease has been well documented, little is known regarding their correlation to measures of vascular structure and function. This study was conducted to investigate the relationship between apoA-1, apoB, and measures of vascular function, as well their relationship to adverse cardiovascular events. Moreover, we evaluated whether apoB or the apoB/apoA-1 ratio was more closely related to vascular markers than was low-density lipoprotein cholesterol (LDL-C) or non-high-density lipoprotein cholesterol (non-HDL-C)...
October 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28941176/optimized-human-platelet-lysate-as-novel-basis-for-a-serum-xeno-and-additive-free-corneal-endothelial-cell-and-tissue-culture
#6
Daniel Thieme, Lynn Reuland, Toni Lindl, Friedrich Kruse, Thomas Fuchsluger
INTRODUCTION: The expansion of donor derived corneal endothelial cells is a promising approach for regenerative therapies in corneal diseases. To achieve the best GMP standard the entire cultivation process should be devoid of non-human components. However, so far there is no suitable xeno-free protocol for clinical applications. METHODS: We therefore introduce a processed variant of a platelet lysate for the use in corneal cell and tissue culture based on a GMP-grade thrombocyte concentrate...
September 21, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28940664/a-novel-histological-examination-with-dynamic-3d-reconstruction-from-multiple-immunohistochemically-stained-sections-of-a-programmed-cell-death-ligand-1-positive-colon-cancer
#7
Shotaro Korehisa, Tetsuo Ikeda, Shinji Okano, Hiroshi Saeki, Eiji Oki, Yoshinao Oda, Makoto Hashizume, Yoshihiko Maehara
AIMS: Programmed cell death-ligand 1 (PD-L1) expression is observed in patients with high level microsatellite instability (MSI-H) colon cancer, which is susceptible to immune checkpoint blockade. The aim of this study was to investigate the interrelationship between PD-L1-positive cells and cytotoxic T cells, lymphatic vessels, and vascular endothelium using histological examination with the three-dimensional (3D) reconstruction of a PD-L1-positive colon cancer. METHODS AND RESULTS: Serial sections of MSI-H colon cancer tissue were stained with haematoxylin and eosin (H&E) and Masson trichrome stains; PD-L1, CD8, D2-40, and CD31 immunohistochemistry were performed...
September 21, 2017: Histopathology
https://www.readbyqxmd.com/read/28940408/protective-repairing-and-fibrinolytic-effects-of-rivaroxaban-on-vascular-endothelium
#8
Ezequiel Alvarez, Beatriz Paradela-Dobarro, Sergio Raposeiras-Roubín, José Ramón González-Juanatey
AIM: Rivaroxaban, a direct inhibitor of activated factor X (FXa), is the only new oral anticoagulant approved for secondary prevention after acute coronary syndrome. Our objective was to identify the possible molecular mechanisms of rivaroxaban that contributes to endothelial function. METHODS: Cell viability and growth of human umbilical vein endothelial cells (HUVEC) were registered. Gene expression studies comparing the effects of rivaroxaban and FXa were conducted by a selective RNA array and confirmed by protein quantification...
September 23, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28940111/hyperuricemia-is-associated-with-increased-apo-ai-fractional-catabolic-rates-and-dysfunctional-hdl-in-new-zealand-rabbits
#9
Miriam Martínez-Ramírez, Cristóbal Flores-Castillo, L Gabriela Sánchez-Lozada, Rocío Bautista-Pérez, Elizabeth Carreón-Torres, José Manuel Fragoso, José Manuel Rodriguez-Pérez, Fernando E García-Arroyo, Victoria López-Olmos, María Luna-Luna, Gilberto Vargas-Alarcón, Martha Franco, Oscar Pérez-Méndez
The potential cause-effect relationship between uric acid plasma concentrations and HDL functionality remains elusive. Therefore, this study aimed to explore the effect of oxonic acid (OA)-induced hyperuricemia on the HDL size distribution, lipid content of HDL subclasses, and apo AI turnover, as well as HDL functionality in New Zealand white rabbits. Experimental animals received OA 750 mg/kg/day by oral gavage during 21 days. The HDL-apo AI fractional catabolic rate (FCR) was determined by exogenous labeling with (125)I, and HDL subclasses were determined by sequential ultracentrifugation and PAGE...
September 22, 2017: Lipids
https://www.readbyqxmd.com/read/28939367/comparison-of-three-human-platelet-lysates-used-as-supplements-for-in-vitro-expansion-of-corneal-endothelium-cells
#10
Tsung-Jen Wang, Ming-Sheng Chen, Ming-Li Chou, Hsiu-Chen Lin, Jerard Seghatchian, Thierry Burnouf
BACKGROUND: Human platelet lysates (HPLs) are emerging as the new gold standard supplement of growth media for ex vivo expansion of cells for transplant. However, variations do exist in the way how HPLs are prepared. In particular, uncertainties still exist regarding the type of HPL most suitable for corneal endothelium cells (CEC) expansion, especially as these cells have limited proliferative capacity. MATERIAL AND METHODS: Three distinct HPL preparations were produced, with or without calcium chloride/glass beads activation, and with or without heat treatment at 56°C for 30min...
August 31, 2017: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/28939055/hipertriglyceridemia-induced-acute-pancreatitis-in-pregnancy
#11
María Dolores Mañas García, Enrique Marchán Carranza, Jesús Galiana Gómez Del Pulgar, Belén Fernández de Bobadilla Pascual
Hypertrigliceridemia is the third most common cause of acute pancreatitis. The risk of developing acute pancreatitis is 5% in healthy patients and 4% during pregnancy with triglyceride levels >1,000mg/dl. During pregnancy there are changes in the lipid profile that increase between two and four times triglyceride levels. Its increase in excessive form produces an oxidative environment with injury of the endothelium and appearance of complications such as preeclampsia or pancreatitis. We present the case of a pregnant woman with pancreatitis secondary to hypertriglyceridemia...
September 19, 2017: Clínica e Investigación en Arteriosclerosis
https://www.readbyqxmd.com/read/28939023/vascular-protective-effects-of-aqueous-extracts-of-tribulus-terrestris-on-hypertensive-endothelial-injury
#12
Yue-Hua Jiang, Jin-Hao Guo, Sai Wu, Chuan-Hua Yang
Angiotensin II (Ang II) is involved in endothelium injury during the development of hypertension. Tribulus terrestris (TT) is used to treat hypertension, arteriosclerosis, and post-stroke syndrome in China. The present study aimed to determine the effects of aqueous TT extracts on endothelial injury in spontaneously hypertensive rats (SHRs) and its protective effects against Ang II-induced injury in human umbilical vein endothelial cells (HUVECs). SHRs were administered intragastrically with TT (17.2 or 8.6 g·kg(-1)·d(-1)) for 6 weeks, using valsartan (13...
August 2017: Chinese Journal of Natural Medicines
https://www.readbyqxmd.com/read/28938516/naturally-occurring-anthocyanin-cyanidin-3-rutinoside-possesses-inherent-vasorelaxant-actions-and-prevents-methylglyoxal-induced-vascular-dysfunction-in-rat-aorta-and-mesenteric-arterial-bed
#13
Thavaree Thilavech, Mahinda Y Abeywardena, Michael Adams, Julie Dallimore, Sirichai Adisakwattana
Cyanidin-3-rutinoside (C3R) possesses anti-oxidant, anti-inflammatory and anti-glycation properties. Methylglyoxal (MG), a highly reactive dicarbonyl aldehyde by-product of glycolysis, is a precursor of advanced glycation end products and contributes to vascular dysfunction, particularly during hyperglycemia. We investigated the possible inherent vasoactivity of C3R, and its effectiveness against MG-induced vascular abnormalities in isolated blood vessel preparations from male Wistar Kyoto rat. C3R induced vasorelaxation concentration-dependently in aortic rings (92% maximum relaxation; EC50: 2...
September 18, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28938239/absence-of-a-correlation-between-the-abo-blood-group-and-thrombus-burden-in-patients-with-st-segment-elevation-myocardial-infarction
#14
Lutfu Askin, Mustafa Cetin, Serdar Turkmen
OBJECTIVE: ABO antigens are highly abundant in many human cell types, including platelets, vascular endothelium, and red blood cells. The presence of a thrombus is associated with adverse clinical outcomes in patients with ST-segment elevation myocardial infarction (STEMI). We reviewed the relationship between ABO blood groups and thrombus burden in patients with STEMI. PATIENTS AND METHODS: We carried out a retrospective study of 396 patients with STEMI who did not have an ABO blood group or thrombus burden...
September 21, 2017: Coronary Artery Disease
https://www.readbyqxmd.com/read/28937611/hcg-biological-functions-and-clinical-applications
#15
REVIEW
Chinedu Nwabuobi, Sefa Arlier, Frederick Schatz, Ozlem Guzeloglu-Kayisli, Charles Joseph Lockwood, Umit Ali Kayisli
Human chorionic gonadotropin (hCG) is produced primarily by differentiated syncytiotrophoblasts, and represents a key embryonic signal that is essential for the maintenance of pregnancy. hCG can activate various signaling cascades including mothers against decapentaplegic homolog 2 (Smad2), protein kinase C (PKC), and/or protein kinase A (PKA) in several cells types by binding to luteinizing hormone/chorionic gonadotropin receptor (LHCGR) or potentially by direct/indirect interaction with transforming growth factor beta receptor (TGFβR)...
September 22, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28937259/cardiac-morphofunctional-characteristics-of-transgenic-rats-with-overexpression-of-the-bradykinin-b1-receptor-in-the-endothelium
#16
R F Levy, A J Serra, E L Antonio, L Dos Santos, D S Bocalini, J B Pesquero, M Bader, V F Merino, H A de Oliveira, E C de Arruda Veiga, J A Silva, P Jf Tucci
Evaluate whether endothelial overexpressing of the bradykinin B1 receptor could be associated with altered left ventricular and myocardial performance. Echocardiography and hemodynamic were employed to assess left ventricular morphology and function in Sprague-Dawley transgenic rats overexpressing the endothelial bradykinin B1 receptor (Tie2B1 rats). The myocardial inotropism was evaluated on papillary muscles contradicting in vitro. In Tie2B1 animals, an enlarged left ventricular cavity and lower fractional shortening coupled with a lower rate of pressure change values indicated depressed left ventricular performance...
September 22, 2017: Physiological Research
https://www.readbyqxmd.com/read/28936480/the-role-of-corneal-stroma-a-potential-nutritional-source-for-the-cornea
#17
Lingling Zhang, Matthew C Anderson, Chia-Yang Liu
Corneal stroma plays a pivotal role in normal visual function. Anatomically, it is located between the outer epithelium and the inner endothelium and is the thickest layer of the cornea. Keratocytes in the stroma produce a variety of cellular products, including growth factors/cytokines, extracellular matrix (ECM) components, and kinases. These products support normal corneal development and homeostasis.
August 2017: Journal of Nature and Science
https://www.readbyqxmd.com/read/28936376/bacterial-endocarditis-presenting-as-leukocytoclastic-vasculitis
#18
Sarah El Chami, Atieh Jibbe, Shadi Shahouri
Subacute bacterial endocarditis can have many different presentations; in rare instances, it can present as leukocytoclastic vasculitis owing to the effect of circulating immune complexes and micro-emboli on the vascular endothelium. A high index of suspicion needs to be maintained to differentiate between infectious vs noninfectious autoimmune vasculitides, keeping in mind that missing a diagnosis can have fatal results. In this case report, we introduce a young female patient who initially presented with a picture of idiopathic autoimmune cutaneous vasculitis delaying the diagnosis of an underlying infective endocarditis with aortic valve involvement...
July 13, 2017: Curēus
https://www.readbyqxmd.com/read/28936197/functional-role-of-gonadotrope-plasticity-and-network-organization
#19
REVIEW
Brian S Edwards, Colin M Clay, Buffy S Ellsworth, Amy M Navratil
Gonadotrope cells of the anterior pituitary are characterized by their ability to mount a cyclical pattern of gonadotropin secretion to regulate gonadal function and fertility. Recent in vitro and in vivo evidence suggests that gonadotropes exhibit dramatic remodeling of the actin cytoskeleton following gonadotropin-releasing hormone (GnRH) exposure. GnRH engagement of actin is critical for gonadotrope function on multiple levels. First, GnRH-induced cell movements lead to spatial repositioning of the in vivo gonadotrope network toward vascular endothelium, presumably to access the bloodstream for effective hormone release...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28936050/comparative-evaluation-of-corneal-endothelium-in-patients-with-diabetes-undergoing-phacoemulsification
#20
Pramod K Sahu, Gopal K Das, Sumeet Agrawal, Sabitabh Kumar
PURPOSE: The purpose of this study is to determine if phacoemulsification with posterior chamber foldable intraocular lens implantation has a greater impact on the corneal endothelium of type 2 diabetic patients as compared to nondiabetic controls. MATERIALS AND METHODS: This study compared the corneal endothelial status in sixty patients with diabetes with good glycemic control and sixty nondiabetic controls before and after (1 week, 1 month, 2 month, and 3 month) uneventful phacoemulsification...
April 2017: Middle East African Journal of Ophthalmology
keyword
keyword
11004
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"