Search Results
Results 1 - 50 of 1544
1 2 3 4 5 6 7 8 9 10 >
Bodanapally Uttam K UK Departments of 1 Radiology - - 2014
Object The authors conducted a study to compare the sensitivity and specificity of helical CT angiography (CTA) and digital subtraction angiography (DSA) in detecting intracranial arterial injuries after penetrating traumatic brain injury (PTBI). Methods In a retrospective evaluation of 48 sets of angiograms from 45 consecutive patients with PTBI, 3 ...
Slottosch Ingo I Department of Cardiothoracic Surgery, Heartcenter, University Hospital Cologne, Cologne, Germany - - 2014
Ischaemia/reperfusion (I/R) injury of the lungs contributes to pulmonary dysfunction after cardiac surgery with cardiopulmonary bypass (CPB), leading to increased morbidity and mortality of patients. This study investigated the value of controlled lung reperfusion strategies on lung ischemia-reperfusion injury in a porcine CPB model. Pigs were subjected to routine CPB ...
Maio M Tina MT Department of Biomedical and Molecular Sciences, Queen's University, Kingston, ON, - - 2014
Chronic kidney disease (CKD), erectile dysfunction (ED), and cardiovascular disease share common vascular etiologies and risk factors. Using a rat model, this is the first study to characterize the consequences of CKD in the onset and development of ED associated with differential regional vascular calcification and circulatory changes. Stable CKD ...
Durán Ana C AC Department of Animal Biology, Faculty of Science, University of Málaga, Campus de Teatinos s/n, 29071 Málaga, Spain. Electronic address: - - 2014
It has been reported that in chondrichthyans the cardiac outflow tract is composed of the myocardial conus arteriosus, while in most teleosteans it consists of the nonmyocardial bulbus arteriosus. Classical studies already indicated that a conus and a bulbus coexist in several ancient actinopterygian and teleost groups. Recent work has ...
Chen Bing B Department of Anesthesia, Southwest Hospital, Third Military Medical University, 30 Gaotanyan Street, Shapingba District, Chongqing, 400038, - - 2014
Common bile duct ligation (CBDL) rats is an accepted experimental model of hepatopulmonary syndrome (HPS), defined as liver disease and intrapulmonary vascular dilatation and hypoxemia. Pulmonary Akt and ERK activation, followed by angiogenesis in the later stages of CBDL, contribute to the pathogenesis of HPS. However, the mechanisms behind Akt ...
Chen Jian-Ying JY Department of Cardiology, the Affiliated Hospital of Guangdong Medical College, Zhanjiang 524001, - - 2014
Aim:Microvesicles (MVs) are nanoscale membrane fragments released from virtually all cell types upon activation or apoptosis, and may contribute to the beneficial effects of stem cell therapy. In this study, we investigated the therapeutic effects of mesenchymal stem cell (MSC) derived MVs (MSC-MVs) on pulmonary artery hypertension (PAH) in rats.Methods:MSC-MVs ...
Wang R R Department of Respiratory Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, People's Republic of - - 2014
Pulmonary hypertension is a life-threatening medical condition, and a growing body of evidence shows that the expression of connective tissue growth factor (CTGF) is significantly associated with its pathogenesis, making it an attractive therapeutic target. Our earlier work revealed that plasmid-based CTGF-specific short hairpin RNA (shRNA) could attenuate pulmonary artery ...
Li Bingbing B Department of Anesthesiology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu 210008, P.R. - - 2014
The formation of neointimal lesions is one of the characteristic pathological alterations of the pulmonary vasculature in response to sustained pulmonary arterial hypertension (PAH). To date, the effect of dichloroacetate (DCA) on these intimal lesions had remained to be investigated. In the present study, the beneficial impact of DCA on ...
Smirnova S L SL Laboratory of Comparative Cardiology, Komi Science Center, Ural Division of the Russian Academy of Sciences, Syktyvkar, Russia, - - 2014
The formation of early activation regions was demonstrated in the area of the pulmonary vein orifice in hypertensive rats. The appearance of early activation zones on the dorsal side of the left atrium near the pulmonary veins simultaneously with the sinoatrial node in rats with arterial hypertension indicates the possibility ...
Liu Xiaoyan X State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, People's Republic of China; Medical Research Center, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, - - 2014
Phenotype modification of pulmonary artery smooth muscle cells (PASMCs) (excessive proliferation, migration and impaired apoptosis) plays central roles in pulmonary vascular remodeling of pulmonary arterial hypertension (PAH), however, the potential mechanism and contributing factors involved in the phenotype alteration in PASMCs are still not completely elucidated. This study attempted to ...
Peng Xue X Department of Pathophysiology, Harbin Medical University, Harbin, 150086, - - 2014
Phenotype modulation of pulmonary artery smooth muscle cells (PASMCs) plays an important role during hypoxia-induced vascular remodeling and pulmonary hypertension (PAH). We had previously shown that calcium-sensing receptor (CaSR) is expressed in rat PASMCs. However, little is known about the role of CaSR in phenotypic modulation of PASMCs in hypoxia-induced ...
Guo Xiaomei X Indiana University Purdue University - - 2014
An increase in pulse pressure (PP) is highly associated with hypertension. The goal of this study was to determine the effect of increased aortic stiffness on PP and endothelial dysfunction as precursors to hypertension. A rat model of suddenly increased aortic stiffness by use of a non-constrictive restraint (glue coating) ...
Matsumoto Takayuki T Department of Physiology and Morphology, Institute of Medicinal Chemistry, Hoshi University, Shinagawa-ku, Tokyo 142-8501, - - 2014
Serotonin (5-hydroxytryptamine: 5-HT) plays important roles in the cardiovascular system; however, the relationship between 5-HT-induced vasocontraction and the arterial 5-HT system including metabolism and signal transduction, in the presence of chronic type 2 diabetes (T2D) remains unclear. Therefore, we investigated 5-HT-induced contraction and associated mechanisms in carotid arteries from chronic ...
Wang Xuebing X Department of Center ICU, East Hospital, School of Medicine, Tongji University, Shanghai, 200120, China, - - 2014
This research is aimed to discover the influence and underling mechanism of combined infusion of arginine vasopressin with levosimendan on acute lung injury in rat septic shock with norepinephrine supplemented. The traditional fecal peritonitis-induced septic shock model was undergone in rats for study. It is observed that the combined infusion ...
Plomaritas Danielle R DR University of New Mexico Health Sciences - - 2014
Our laboratory shows that acid-sensing ion channel 1 (ASIC1) contributes to the development of hypoxic pulmonary hypertension by augmenting store-operated Ca(2+) entry (SOCE) that is associated with enhanced agonist-induced vasoconstriction and arterial remodeling. However, this enhanced Ca(2+) influx following chronic hypoxia (CH) is not dependent on an increase ASIC1 protein ...
Peddinti Kalyan Chakravarthy KC Assistant Professor, Department of Anaesthesiology and Critical Care, GSL Medical College and General Hospital , Lakshmipuram, Rajahmundry, Andhra Pradesh, India - - 2014
Here, we present successful management of a patient with rupture of right sinus valsalva and ventricular septal defect. Aneurysm of the aortic sinus also known as sinus of valsalva (ASOV) is a rare cardiac defect which can be congenital or acquired. Right coronary sinus (most common) usually ruptures into the ...
Hamada Kazuhide K Department of Neurosurgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie, 514-8507, - - 2014
The aims of this study were to develop a new coil, gellan sulfate core platinum coil (GSCC), that delivers tenascin-C (TNC) to an aneurysm (GSCC-TNC) and to evaluate the effects on intra-aneurysmal organization. We performed in vitro adsorption tests of TNC to gellan sulfate (GS). GSCC-TNC was produced by immersing ...
Chaumais Marie-Camille - - 2014
The outcome of patients suffering from pulmonary arterial hypertension (PAH) are predominantly determined by the response of the right ventricle to the increase afterload secondary to high vascular pulmonary resistance. However, little is known about the effects of the current available or experimental PAH treatments on the heart. Recently, inflammation ...
Liu Huan H a Department of Aerospace Physiology, Key Laboratory of Aerospace Medicine of Ministry of Education, Fourth Military Medical University, 169 Changle West Road, Xi'an 710032, Shaanxi Province, - - 2014
Post-spaceflight orthostatic intolerance is one of the most important adverse effects after exposure to space microgravity, and there are still no effective countermeasures. It has been considered that arterial remodeling may play an important role in the occurrence of post-spaceflight orthostatic intolerance, but the cellular mechanisms remain unknown. In this ...
Zhao Lei L 1 Department of Physiology, School of Basic Science, Guangzhou Medical University, Guangzhou 510182, China ; 2 Guangzhou Institute of Respiratory Disease, State Key Laboratory of Respiratory Diseases, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China ; 3 School of Life Science, Sun Yat-Sen University, Guangzhou 510275, - - 2014
To evaluate the dominant role in rat pulmonary artery (PA) remodeling induced by chronic smoking exposure (CSE). Thirty-five male Sprague-Dawley (SD) rats were exposed to 36 cigarettes per day, 6 days per week, for 1, 3, or 5 months. Another 35 SD rats were sham-exposed during the same period. Hemodynamic ...
De Raaf Michiel Alexander MA Department of Pulmonology, Pulmonary Arterial Hypertension Knowledge Centre, VU University Medical Center, Amsterdam, The - - 2014
Pulmonary arterial hypertension (PAH) is a rapidly progressive and devastating disease characterized by remodeling of lung vessels, increased pulmonary vascular resistance, and eventually right ventricular hypertrophy and failure. Because histone deacetylase (HDAC) inhibitors are agents hampering tumor growth and cardiac hypertrophy, they have been attributed a therapeutic potential for patients ...
Lee Nicolas N Department of Orthopaedic Surgery, Medical College of Wisconsin, Milwaukee, - - 2014
Microvascular training models for vein grafting most often use the rat epigastric vein interpositioned to the femoral artery. We describe the rat posterior facial vein as an alternative vein graft model; it has at least a 2:1 diametric ratio to the femoral artery and a tougher connective tissue, making it ...
Eguchi Masamichi M Department of Cardiovascular Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, - - 2014
AMIS: Functional and structural changes in pulmonary vasculature characterize pulmonary arterial hypertension (PAH) and the prognosis of advanced PAH remains poor despite progress in pharmacotherapy. Adipose-derived regenerative cells (ADRC) promote cell regeneration at pathological sites and comprise a novel therapy for ailments of various organs. We investigated the effects of ...
Kattan Javier J Division of Neonatology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, - - 2014
Background: A predictor of neonatal mortality in infants with congenital diaphragmatic hernia (CDH) is disrupted pulmonary vascular development, clinically expressed as pulmonary hypertension. Objective: To determine if prenatal corticosteroids and phosphodiesterase-5 (PDE-5) inhibitors have a beneficial effect on pulmonary vascular development in CDH lungs. Methods: We induced CDH in fetal ...
Zhang Jinzhou J Department of Mechanical Engineering, The University of Texas at San Antonio, San Antonio, TX, 78249, - - 2014
Theoretical modeling and in vitro experiments have demonstrated that arterial buckling is a possible mechanism for the development of artery tortuosity. However, there has been no report of whether artery buckling develops into tortuosity, partially due to the lack of in vivo models for long-term studies. The objective of this ...
Fu Jinyan J From the Vascular Biology and Hypertension Program, Division of Cardiovascular Disease, Department of Medicine (J.F., Y.-F.C., X.Z., Y.-Y.G., F.G.H., S.O., D.D.X.) and Department of Anesthesiology, University of Alabama at Birmingham (J.C.); Department of Biochemistry and the Laboratory of Xinjiang Endemic and Ethnic Diseases, Shihezi University School of Medicine, Xinjiang, China (J.F.); and Section of Cardiology, Birmingham Veteran's Administration Medical Center, - - 2014
Interleukin-8 (IL-8) receptors IL8RA and IL8RB (IL8RA/B) on neutrophil membranes bind to IL-8 with high affinity and play a critical role in neutrophil recruitment to sites of injury and inflammation. This study tested the hypothesis that administration of rat pulmonary arterial endothelial cells (ECs) overexpressing IL8RA/B can accelerate the adhesion ...
Chen T-H TH Division of Cardiovascular Surgery, Cathay General Hospital, Taipei, - - 2014
Hemodynamic instability is a frequent scenario after reperfusion of ischemic liver due to major liver resection and liver transplantation. Previously, we showed that liver ischemia/reperfusion (I/R) injury induced increases in reactive oxygen/nitrogen species and inducible nitric oxide synthase (iNOS) expression impaired cardiac contractility. In addition, nitric oxide (NO) generated via ...
Zaloudíková M M Department of Pathophysiology, Second Faculty of Medicine, Charles University, Prague, Czech Republic. - - 2014
To test whether macrophages can play any role in hypoxic pulmonary vasoconstriction, we tested the in vitro response of rings from small pulmonary arteries to the activation of macrophages by FMLP, a substance stimulating predominantly membrane-bound NADPH oxidase. A small vessel myograph was used to measure the responses of rings ...
Grände Gustaf - - 2014
Migraine attacks occur spontaneously in those who suffer from the condition, but migraine-like attacks can also be induced artificially by a number of substances. Previously published evidence makes the meninges a likely source of migraine related pain. This article investigates the effect of several vasodilators on meningeal arteries in order ...
Zhou Wenting W Department of Pharmacology, Xinjiang Medical University, 830011- Urumqi, Xinjiang, People's Republic of - - 2014
Cydonia Oblonga Miller (COM) is traditionally used in Uyghur medicine for the prevention of cardiovascular disease. The present study is designed to explore the effects of COM extracts on models and markers of thrombosis and related biomarkers. 20, 40, 80mg/kg/day COM aqueous extracts and 5mg/kg/day aspirin, orally for 14 days ...
Mofikoya B O BO Department of Surgery, Burns, Plastic Surgery and Hand Rehabilitation Unit, College of Medicine, University of Lagos, Lagos, - - 2014
The anastomosis of sub-millimeter vessels is fraught with significant technical challenges even for the experienced microsurgeon. The supermicrosurgery era is increasing the demand for repair of very small vessels. Our study aims to ascertain whether the open guide suture technique provides a superior patency rate compared with conventional technique when ...
Farkas Daniela D Virginia Commonwealth University, Internal Medicine, Division of Pulmonary Disease and Critical Care Medicine, Richmond, Virginia, United States ; - - 2014
Nuclear factor-κB (NF-κB) and interleukin-6 (IL-6), a NF-κB downstream mediator, play a central role in the inflammatory response of tissues. We aimed to determine the role of the classical NF-κB pathway in severe pulmonary arterial hypertension (PAH) induced by SU5416 and chronic hypoxia (SuHx) in rats. Tissue samples from patients ...
Xiang Shui S Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, - - 2014
Coronary artery bypass graft (CABG) surgery is one of the most effective treatments for coronary artery disease. However, neointimal hyperplasia and ultimate luminal occlusion that is caused by vascular smooth muscle cell (VSMC) migration, proliferation and inflammatory response impede the long-term prognosis. The SOCS3 protein is involved in modulating various ...
Ping N-N NN Department of Pharmacology, Xi'an Jiaotong University College of Medicine, Xi'an Shaanxi, P.R. China. - - 2014
The aim of the present study was to determine the optimal initial tension, i.e. initial stretch for rat coronary artery when using the multi-wire myograph system. We used the normalization procedure to mimic physiological conditions and to stretch the coronary arterial segments to normalized internal circumference (IC(1)). It is determined ...
Gregoire E E Aix-Marseille University. Department of General surgery and liver transplantation, Hôpital de la Conception Marseille, France. Electronic address: - - 2014
The main hindrance in promoting living donor liver transplantation remains the morbi-mortality risk for the donor. Considering the opposed remodeling influence of portal and hepatic artery flows, our working hypothesis was to identify a lobar portal vein stenosis capable of inducing a contralateral liver mass compensatory enlargement, without the downstream ...
Yokoi Toshihiro T Department of Neurosurgery - - 2014
Object Although cerebral aneurysmal subarachnoid hemorrhage is a devastating disease for humans, effective medical treatments have not yet been established. Recent reports have shown that regression of some inflammatory-related mediators has protective effects in experimental cerebral aneurysm models. This study corroborated the effectiveness of tumor necrosis factor-α (TNF-α) inhibitor for ...
Yamamoto Yuka Y Fetal & Neonatal Cardiology Program, Division of Pediatric Cardiology; Department of Obstetrics & Gynecology, Juntendo University Faculty of Medicine, Tokyo, - - 2014
Congenital diaphragmatic hernia (CDH) is clinically challenging due to associated lung hypoplasia (LH). There have been no validated parameters to evaluate fetal LH severity. Sildenafil has been shown to improve LH mass in Nitrofen-induced CDH models, but the pulmonary vascular tone has not been evaluated in vivo. To identify the ...
Brito Marlon V MV Departamento de Bioquímica, Universidade Federal de São Paulo, Rua três de Maio, 100, 04044-020 São Paulo, - - 2014
The Bauhinia bauhinioides Kallikrein Inhibitor (BbKI) is a Kunitz-type serine peptidase inhibitor of plant origin that has been shown to impair the viability of some tumor cells and to feature a potent inhibitory activity against human and rat plasma kallikrein (Kiapp 2.4nmol/L and 5.2nmol/L, respectively). This inhibitory activity is possibly ...
Minareci Edibe E Department of Pharmacology, School of Medicine, Akdeniz University, Antalya 07070, - - 2014
Vardenafil was reported to relax rat pulmonary artery through endothelium-dependent mechanisms. The aim of this in vitro study was to investigate other related mechanisms for this effect. Endothelium-intact and denuded artery rings were suspended in order to record isometric tension. In the rings with or without endothelium, the concentration-response curves ...
Alencar Allan K N AK Programa de Desenvolvimento de Fármacos, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, - - 2014
Pulmonary arterial hypertension (PAH) is a disease that results in right ventricular (RV) dysfunction. While pulmonary vascular disease is the primary pathological focus, RV hypertrophy and RV dysfunction are the major determinants of prognosis in PAH. The aim of this study was to investigate the effects of (E)-N'-(3,4-dimethoxybenzylidene)-4-methoxybenzohydrazide (LASSBio-1386), an ...
Kudryavtseva Olga O Aarhus - - 2014
L-type Ca(2+) channels (LTCCs) are important for vascular smooth muscle cell (VSMC) contraction, as well as VSMC differentiation, as indicated by loss of LTCCs during VSMC dedifferentiation. However it is not clear whether loss of LTCCs is a primary event underlying phenotypic modulation or whether loss of LTCCs has significance ...
Ozturk Can C Department of Plastic Surgery, Cleveland Clinic, Cleveland, - - 2014
Venous grafting has been widely used in microsurgical training. Different types of vascular grafts have been described in experimental models. In this study we describe for the first time the Y- and X-shaped vein grafts (YVG, XVG) with accompanying drain-out branches as a new tool for the microsurgical training and ...
Arnberg Fabian F Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, - - 2014
The purpose of this study was to investigate the radioligand uptake and iodine contrast distribution in the intra- and extracranial circulation of the rat, after intra-arterial injections to the common carotid artery and different parts of the internal carotid artery. All animal experiments were carried out in accordance with Karolinska ...
Ali Ayyaz A - - 2014
We aim to develop a rat model of veno-arterial extracorporeal membrane oxygenation (VA-ECMO). VA-ECMO was established in twelve Male Sprague-Dawley rats (250-350 g) through cannulation of the right jugular vein for venous drainage and the right femoral artery for arterial reinfusion. Arterial blood pressure was measured using a conductance catheter ...
Gomart Samantha - - 2014
Systemic hypertension may be associated with an increased pulmonary vascular resistance, which we hypothesized could be, at least in part, mediated by increased leptin. Vascular reactivity to phenylephrine (1 mumol/L), endothelin-1 (10 nmol/L) and leptin (0.001-100 nmol/L) was evaluated in endothelium-intact and -denuded isolated thoracic aorta and pulmonary arteries from ...
Liu Bin B aDepartment of Pharmacology, School of Pharmaceutical Sciences, Central South University, Changsha 410078, China. bHunan Provincial Key Laboratory of Cardiovascular Research, School of Pharmaceutical Sciences, Central South University, Changsha 410078, China cDepartment of Cardiology, Xiangya Hospital, Central South University, Changsha 410008, - - 2014
Recent studies show that resveratrol exerts beneficial effects on prevention of pulmonary hypertension. This study is performed to explore the effects of trimethoxystilbene, a novel resveratrol analog, on rat pulmonary vascular remodeling and right ventricular hypertrophy in hypoxia-induced pulmonary arterial hypertension (PAH) and the underlying mechanisms. Sprague-Dawley (SD) rats were ...
Zhang Hongyu H School of Pharmacy, Zhejiang Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University, Wenzhou, Zhejiang, - - 2014
Apelin is highly expressed in the lungs, especially in the pulmonary vasculature, but the functional role of apelin under pathological conditions is still undefined. Hypoxic pulmonary hypertension is the most common cause of acute right heart failure, which may involve the remodeling of artery and regulation of autophagy. In this ...
Sinha Aditi A Department of Bioengineering, Clemson - - 2014
Abdominal aortic aneurysms (AAA) are progressive dilatations of infra-renal aorta causing structural weakening rendering the aorta prone to rupture. AAA can be potentially stabilized by inhibiting inflammatory enzymes such as matrix metalloproteinases (MMP); however, active regression of AAA is not possible without new elastic fiber regeneration. Here we report the ...
Zhang Bo B Department of Pathology and Pathophysiology, Fourth Military Medical University, Xi`an, 710032, PR China. Electronic address: - - 2014
Pulmonary hypertension is a progressive disease characterized by marked pulmonary arterial remodeling and increased vascular resistance. Inflammation and oxidative stress promote the development of pulmonary hypertension. Oxymatrine, one of the main active components of Chinese herb Sophora flavescens Ait (Kushen), plays anti-inflammatory and antioxidant protective roles, which effects on pulmonary ...
Madigan Michael M Department of Veterans Affairs Medical Center, Pittsburgh, Pa; Division of Vascular Surgery, University of Pittsburgh, Pittsburgh, - - 2014
Intimal hyperplasia (IH) contributes to the failure of vascular interventions. While many investigational therapies inhibit the development of IH in animal models, few of these potential therapies can reverse established lesions. Inhaled carbon monoxide (CO) dramatically inhibits IH in both rats and pigs when given perioperatively. It also prevented the ...
1 2 3 4 5 6 7 8 9 10 >