journal
MENU ▼
Read by QxMD icon Read
search

Journal of Vascular Research

journal
https://www.readbyqxmd.com/read/29166645/angiotensin-ii-infusion-does-not-cause-abdominal-aortic-aneurysms-in-apolipoprotein-e-deficient-rats
#1
Evan H Phillips, Mandy S Chang, Sydney Gorman, Hamna J Qureshi, Karin F K Ejendal, Tamara L Kinzer-Ursem, A Nicole Blaize, Craig J Goergen
The apolipoprotein E-deficient (apoE-/-) mouse model has advanced our understanding of cardiovascular disease mechanisms and experimental therapeutics. This spontaneous model recapitulates aspects of human atherosclerosis, and allows for the development of dissecting abdominal aortic aneurysms (AAAs) when combined with angiotensin II. We characterized apoE-/- rats and hypothesized that, similar to mice, they would develop dissecting AAAs. We created rats with a 16-bp deletion of the apoE gene using transcription activator-like effector nucleases...
November 23, 2017: Journal of Vascular Research
https://www.readbyqxmd.com/read/29166642/effect-of-calcium-infiltrated-hydroxyapatite-scaffolds-on-the-hematopoietic-fate-of-human-umbilical-vein-endothelial-cells
#2
Qinghao Zhang, Jörg C Gerlach, Eva Schmelzer, Ian Nettleship
Foamed hydroxyapatite offers a three-dimensional scaffold for the development of bone constructs, mimicking perfectly the in vivo bone structure. In vivo, calcium release at the surface is assumed to provide a locally increased gradient supporting the maintenance of the hematopoietic stem cells niche. We fabricated hydroxyapatite scaffolds with high surface calcium concentration by infiltration, and used human umbilical vein endothelial cells (HUVECs) as a model to study the effects on hematopoietic lineage direction...
November 23, 2017: Journal of Vascular Research
https://www.readbyqxmd.com/read/29136627/toll-like-receptor-4-reduces-occludin-and-zonula-occludens-1-to-increase-retinal-permeability-both-in-vitro-and-in-vivo
#3
Li Liu, Youde Jiang, Jena J Steinle
We reported that β-adrenergic receptors regulate toll-like receptor 4 (TLR4) signaling in the retina of diabetic mice and in retinal endothelial cells (REC) and Müller cells. We hypothesized that TLR4 regulates retinal permeability both in vitro and in vivo in the retinal vasculature. We used REC cultured in normal and high-glucose conditions and TLR4 siRNA treatments for cell culture studies of permeability and protein analyses of tumor necrosis factor α, occludin, and zonula occludens 1 (ZO-1). We used endothelial cell (EC)-specific Cre-Lox TLR4 knockout mice to study retinal permeability and neuronal and vascular changes following exposure to ocular ischemia/reperfusion (I/R) used as a retinal stressor...
November 15, 2017: Journal of Vascular Research
https://www.readbyqxmd.com/read/29131060/aging-induced-modulation-of-pituitary-adenylate-cyclase-activating-peptide-and-vasoactive-intestinal-peptide-induced-vasomotor-responses-in-the-arteries-of-mice
#4
Ivan Ivic, Margit Solymar, Balazs D Fulop, Hitoshi Hashimoto, Gabor Toth, Andrea Tamas, Tamas Juhasz, Akos Koller, Dora Reglodi
Pituitary adenylate cyclase-activating peptide (PACAP; 1-38 and 1-27) and vasoactive intestinal peptide (VIP) are related neuropeptides of the secretin/glucagon family. Overlapping signaling through G-protein-coupled receptors mediates their vasomotor activity. We previously showed that PACAP deficiency (PACAP-KO) shifts the mechanisms of vascular response and maintains arterial relaxation through the VIP backup mechanism and (mainly) its VPAC1R, but their age-dependent modulation is still unknown. We hypothesized that backup mechanisms exist, which maintain the vasomotor activity of these peptides also in older age...
November 9, 2017: Journal of Vascular Research
https://www.readbyqxmd.com/read/29065409/low-frequency-components-in-rat-pial-arteriolar-rhythmic-diameter-changes
#5
Dominga Lapi, Teresa Mastantuono, Martina Di Maro, Maurizio Varanini, Antonio Colantuoni
This study aimed to analyze the frequency components present in spontaneous rhythmic diameter changes in rat pial arterioles. Pial microcirculation was visualized by fluorescence microscopy. Rhythmic luminal variations were evaluated via computer-assisted methods. Spectral analysis was carried out on 30-min recordings under baseline conditions and after administration of acetylcholine (Ach), papaverine (Pap), Nω-nitro-L-arginine (L-NNA) prior to Ach, indomethacin (INDO), INDO prior to Ach, charybdotoxin and apamin, and charybdotoxin and apamin prior to Ach...
October 25, 2017: Journal of Vascular Research
https://www.readbyqxmd.com/read/29040972/regulation-of-coronary-arterial-large-conductance-ca2-activated-k-channel-protein-expression-and-function-by-n-3-polyunsaturated-fatty-acids-in-diabetic-rats
#6
Xu Tang, Ling-Ling Qian, Ru-Xing Wang, Yong Yao, Shi-Peng Dang, Ying Wu, Wen Wang, Yuan Ji, Man-Qing Sun, Da-Yun Xia, Xiao-Yu Liu, Dai-Min Zhang, Qiang Chai, Tong Lu
AIM: The objective of this study was to examine the effects of n-3 polyunsaturated fatty acids (n-3 PUFAs) on coronary arterial large conductance Ca2+-activated K+ (BK) channel function in coronary smooth muscle cells (SMCs) of streptozotocin-induced diabetic rats. METHODS: The effects of docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) on coronary BK channel open probabilities were determined using the patch clamp technique. The mRNA and protein expressions of BK channel subunits were measured using qRT-PCR and Western blots...
October 18, 2017: Journal of Vascular Research
https://www.readbyqxmd.com/read/28950284/overexpression-of-insulin-like-growth-factor-2-in-expanded-endothelial-progenitor-cells-improves-left-ventricular-function-in-experimental-myocardial-infarction
#7
Gabi Demetz, Robert A J Oostendorp, A Melanie Boxberg, Wibke Sitz, Eliane Farrell, Birgit Steppich, Anna-Lena Steinsiek, Martina Rudelius, Ilka Ott
Insulin-like growth factors (IGFs) are mediators of growth hormone-induced metabolic and anabolic actions, but also regulate cell growth, differentiation, and apoptosis and show beneficial effects in acute myocardial ischemia. Since endothelial progenitor cells (EPCs) improve myocardial function after acute myocardial infarction, we sought to investigate whether overexpression of IGF-2 in expanded EPCs (eEPCs) further contributes to improvement in left ventricular function after myocardial infarction. EPCs were isolated from human cord blood and transduced by a retroviral vector expression of IGF-2 (IGF-2 eEPCs) or vector only...
September 27, 2017: Journal of Vascular Research
https://www.readbyqxmd.com/read/28942444/peripheral-endothelial-function-and-coronary-flow-velocity-reserve-are-not-associated-in-women-with-angina-and-no-obstructive-coronary-artery-disease-the-ipower-study
#8
Kristoffer Flintholm Raft, Daria Frestad, Marie Mide Michelsen, Hannah Elena Suhrs, Anna Bay Rask, Malin Nilsson, Thomas Steffen Hermann, Eva Prescott
PURPOSE: We investigated whether impaired flow-mediated dilation (FMD) and plasma biomarkers reflecting endothelial dysfunction are associated with coronary microvascular dysfunction (CMD) in women with angina and no obstructive coronary artery disease (CAD). METHODS: Patients (n = 194) were randomly selected women with angina pectoris and no obstructive CAD (<50% stenosis). A reference population of asymptomatic women without CAD (n = 25) was included. We measured FMD in the brachial artery by high-resolution ultrasound...
2017: Journal of Vascular Research
https://www.readbyqxmd.com/read/28942440/epigallocatechin-3-gallate-ameliorates-angiotensin-ii-induced-oxidative-stress-and-apoptosis-in-human-umbilical-vein-endothelial-cells-through-the-activation-of-nrf2-caspase-3-signaling
#9
Xiuli Zhou, Liwen Liang, Yan Zhao, Hong Zhang
INTRODUCTION: This study aimed to investigate whether epigallocatechin-3-gallate (EGCG) shows antioxidant activity against angiotensin II (Ang II)-induced human umbilical vein endothelial cell (HUVEC) apoptosis. MATERIALS AND METHODS: The viability of HUVECs was revealed by MTT and LDH assay. The cell apoptosis was detected by FITC-PI assay. A fluorescent probe assay was used to measure the reactive oxygen species (ROS) generation in HUVECs. Mitochondrial permeability transition pore (MPTP) opening, mitochondrial membrane potential, and caspase-3, -4, -8, -9 activities were also measured...
2017: Journal of Vascular Research
https://www.readbyqxmd.com/read/28930755/vegf-and-igf-delivered-from-alginate-hydrogels-promote-stable-perfusion-recovery-in-ischemic-hind-limbs-of-aged-mice-and-young-rabbits
#10
Erin M Anderson, Eduardo A Silva, Yibai Hao, Kathleen D Martinick, Sarah A Vermillion, Alexander G Stafford, Elisabeth G Doherty, Lin Wang, Edward J Doherty, Paul M Grossman, David J Mooney
Biomaterial-based delivery of angiogenic growth factors restores perfusion more effectively than bolus delivery methods in rodent models of peripheral vascular disease, but the same success has not yet been demonstrated in clinically relevant studies of aged or large animals. These studies explore, in clinically relevant models, a therapeutic angiogenesis strategy for the treatment of peripheral vascular disease that overcomes the challenges encountered in previous clinical trials. Alginate hydrogels providing sustained release of vascular endothelial growth factor (VEGF) and insulin-like growth factor-1 (IGF) were injected into ischemic hind limbs in middle-aged and old mice, and also in young rabbits, as a test of the scalability of this local growth factor treatment...
2017: Journal of Vascular Research
https://www.readbyqxmd.com/read/28930750/tauroursodeoxycholic-acid-reduces-arterial-stiffness-and-improves-endothelial-dysfunction-in-type-2-diabetic-mice
#11
Micah L Battson, Dustin M Lee, Dillon K Jarrell, Shoufei Hou, Kayl E Ecton, Anna B Phan, Christopher L Gentile
BACKGROUND/AIMS: Endoplasmic reticulum (ER) stress has emerged as a potential mechanism contributing to diabetes and its comorbidities. However, the importance of ER stress in diabetic vascular dysfunction is unclear. The purpose of this study was to examine the effects of the ER stress inhibitor, tauroursodeoxycholic acid (TUDCA), on arterial stiffness and endothelial dysfunction in type 2 diabetic mice. METHODS: Carotid and mesenteric artery endothelial function were assessed via ex vivo pressure myography, and arterial stiffness was measured by aortic pulse wave velocity...
2017: Journal of Vascular Research
https://www.readbyqxmd.com/read/28910811/impact-of-age-and-aerobic-exercise-training-on-conduit-artery-wall-thickness-role-of-the-shear-pattern
#12
Koichiro Tanahashi, Keisei Kosaki, Yuriko Sawano, Toru Yoshikawa, Kaname Tagawa, Hiroshi Kumagai, Nobuhiko Akazawa, Seiji Maeda
Hemodynamic shear stress is the frictional force of blood on the arterial wall. The shear pattern in the conduit artery affects the endothelium and may participate in the development and progression of atherosclerosis. We investigated the role of the shear pattern in age- and aerobic exercise-induced changes in conduit artery wall thickness via cross-sectional and interventional studies. In a cross-sectional study, we found that brachial shear rate patterns and brachial artery intima-media thickness (IMT) correlated with age...
2017: Journal of Vascular Research
https://www.readbyqxmd.com/read/28858872/12th-international-symposium-on-resistance-arteries-isra-2017-manchester-september-3-6-2017-abstracts
#13
(no author information available yet)
No abstract text is available yet for this article.
2017: Journal of Vascular Research
https://www.readbyqxmd.com/read/28810262/fetal-sheep-mesenteric-resistance-arteries-functional-and-structural-maturation
#14
Julia J Müller, Matthias Schwab, Charles R Rosenfeld, Iwa Antonow-Schlorke, Peter W Nathanielsz, Florian Rakers, Harald Schubert, Otto W Witte, Sven Rupprecht
BACKGROUND: Fetal blood pressure increases during late gestation; however, the underlying vascular mechanisms are unclear. Knowledge of the maturation of resistance arteries is important to identify the mechanisms and vulnerable periods for the development of vascular dysfunction in adulthood. METHODS: We determined the functional and structural development of fetal sheep mesenteric resistance arteries using wire myography and immunohistochemistry. RESULTS: Media mass and distribution of myosin heavy-chain isoforms showed no changes between 0...
2017: Journal of Vascular Research
https://www.readbyqxmd.com/read/28796998/microrna-dependent-control-of-serotonin-induced-pulmonary-arterial-contraction
#15
Diana Dahan, Tran Thi Hien, Philip Tannenberg, Mari Ekman, Catarina Rippe, Thomas Boettger, Thomas Braun, Karin Tran-Lundmark, Phan-Kiet Tran, Karl Swärd, Sebastian Albinsson
BACKGROUND: Serotonin (5-HT) is considered to play a role in pulmonary arterial hypertension by regulating vascular remodeling and smooth muscle contractility. Here, arteries from mice with inducible and smooth muscle-specific deletion of Dicer were used to address mechanisms by which microRNAs control 5-HT-induced contraction. METHODS: Mice were used 5 weeks after Dicer deletion, and pulmonary artery contractility was analyzed by wire myography. RESULTS: No change was seen in right ventricular systolic pressure following dicer deletion, but systemic blood pressure was reduced...
2017: Journal of Vascular Research
https://www.readbyqxmd.com/read/28768281/%C3%AE-sarcoglycan-deficiency-reduces-atherosclerotic-plaque-development-in-apoe-null-mice
#16
Vignesh Murugesan, Eva Degerman, Ann-Kristin Holmen-Pålbrink, Pontus Duner, Anki Knutsson, Anna Hultgårdh-Nilsson, Uwe Rauch
BACKGROUND: Smooth muscle cells are important for atherosclerotic plaque stability. Their proper ability to communicate with the extracellular matrix is crucial for maintaining the correct tissue integrity. In this study, we have investigated the role of β-sarcoglycan within the matrix-binding dystrophin-glycoprotein complex in the development of atherosclerosis. RESULTS: Atherosclerotic plaque development was significantly reduced in ApoE-deficient mice lacking β-sarcoglycan, and their plaques contained an increase in differentiated smooth muscle cells...
2017: Journal of Vascular Research
https://www.readbyqxmd.com/read/28723696/advanced-glycation-end-products-downregulate-hoxa9ec-through-activation-of-nuclear-factor-kappa-b-by-reciprocal-interaction
#17
Qian-Qian Zhu, Dong-Lin Li, Yang-Yan He, Zi-Heng Wu, Lu Tian, Cheng-Fei Zheng, Nan Zhang, Hong-Kun Zhang
Advanced glycation end-products (AGEs) have been recognized as an important pathophysiological mechanism in endothelial dysfunction during diabetic atherogenesis. Homeobox (Hox) genes have been identified as playing a regulatory role in the adult cardiovascular system. Regulation of HoxA9EC is involved in diabetic endothelial dysfunction, but the mechanism of HoxA9EC regulation has remained undefined. Here, we sought to investigate how HoxA9EC is regulated in AGE-induced endothelial dysfunction and to explore the mechanism involved...
2017: Journal of Vascular Research
https://www.readbyqxmd.com/read/28689199/photoacoustic-imaging-a-novel-tool-for-detecting-carotid-artery-thrombosis-in-mice
#18
Bing Li, Cong Fu, Genshan Ma, Quli Fan, Yuyu Yao
Thrombosis is a main cause of acute cardiovascular events, and detecting thrombi in small arteries via noninvasive imaging remains challenging. In this study, we employed a novel imaging method, photoacoustic imaging (PAI), to study thrombosis in a mouse model of ferric chloride (FeCl3)-induced arterial thrombosis and compared the ability of this method to detect thrombosis with that of a conventional imaging method, namely, ultrasound. The mice (n = 20) were divided equally into the following 4 groups: (1) a normal group, and (2) 3 experimental groups, in which the left common carotid artery was treated with 20% FeCl3 for 1, 3, or 5 min, respectively...
2017: Journal of Vascular Research
https://www.readbyqxmd.com/read/28683458/oral-nitrate-increases-microvascular-reactivity-and-the-number-of-visible-perfused-microvessels-in-healthy-volunteers
#19
Louis Kolb, Diego Orbegozo, Jacques Creteur, Jean-Charles Preiser, Jean-Louis Vincent, Daniel De Backer
Nitric oxide (NO) plays an important role in controlling microcirculatory function, but the effects of exogenous administration of nitrate (NO3-) on the microcirculation have not been well studied. We evaluated whether NO3- could influence the microvascular response to hypoxia in 17 healthy volunteers. We used a vascular occlusion test (VOT) to assess the response of near-infrared spectroscopy-derived indexes to hypoxic stress before and 2 h 15 min after oral administration of 800 mg potassium nitrate. We also monitored changes in the sublingual microcirculation using side-stream dark-field (SDF) video microscopy...
2017: Journal of Vascular Research
https://www.readbyqxmd.com/read/28683445/lysophosphatidylcholine-acyltransferase-3-expression-is-associated-with-atherosclerosis-progression
#20
Hiroki Tanaka, Nobuhiro Zaima, Takeshi Sasaki, Naoto Yamamoto, Kazunori Inuzuka, Tatsuro Yata, Takayuki Iwaki, Kazuo Umemura, Hideto Sano, Yuko Suzuki, Tetsumei Urano, Mitsutoshi Setou, Naoki Unno
Free arachidonic acid (AA) is an important precursor of lipid mediators such as leukotrienes and prostaglandins that induces inflammation and is associated with atherosclerosis progression. Recent studies have shown that lysophosphatidylcholine acyltransferase-3 (LPCAT3) converts lysophosphatidylcholine (LPC) and free AA into phosphatidylcholine (PC)-containing AA (arachidonyl-PC) and thereby can regulate intracellular free-AA levels. However, the association between LPCAT3 and atherosclerosis remains to be established...
2017: Journal of Vascular Research
journal
journal
30993
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"