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Vascular Research

21:21 EDT 20th March 2019 | BioPortfolio

Identification of risk factors for arterial repair failures and lessons learned: Experiences from managing 129 combat vascular extremity wounds in the Sri Lankan war.

In extremity vascular trauma, early complications occur at a rate of 13% to 44%. The most common of which are infection, dehiscence, thrombosis, and stenosis. Failure of the arterial repair, also called arterial blow out, has the potential for exsanguinating hemorrhage and poses a considerable challenge for the surgeon to save limb and life.

The Role of Non-Contrast Cone Beam CT in Identifying Incomplete Treatment during Uterine Artery Embolization.

To describe the utility of post-procedure noncontrast cone-beam computed tomography (CT) in identifying cases of incomplete treatment and the need to search for additional vascular supply during uterine artery embolization (UAE).

Vitamin D Ameliorates Angiotensin II-Induced Human Endothelial Progenitor Cell Injury via the PPAR-γ/HO-1 Pathway.

Vitamin D has an important protective effect on chronic inflammatory disease. Angiotensin II (AngII) triggers vascular damage and plays a key role in vascular diseases via several mechanisms, including inflammation. Conversely, vitamin D has been shown to have an important protective effect on chronic inflammation. There is evidence showing that vitamin D can reverse the effects of AngII, but the ...

MRI Imaging of the Hemodynamic Vasculature of Neuroblastoma Predicts Response to Anti-angiogenic Treatment.

Childhood neuroblastoma is a hypervascular tumor of neural origin for which antiangiogenic drugs are currently being evaluated; however, predictive biomarkers of treatment response, crucial for successful delivery of precision therapeutics, are lacking. We describe a MRI-pathological cross-correlative approach using intrinsic susceptibility (IS-) and susceptibility contrast (SC-) MRI to non-invasi...

Effect of Treatment on Imaging, Clinical, and Serologic Assessments of Disease Activity in Large-Vessel Vasculitis.

Disease activity in large-vessel vasculitis (LVV) is traditionally assessed by clinical and serological parameters rather than vascular imaging. This study determined the effect of treatment on 18F-fluorodeoxyglose positron emission tomography (FDG-PET) vascular activity in relationship to clinical and serologic-based assessments.

Adipolin/CTRP12 protects against pathological vascular remodeling through suppression of smooth muscle cell growth and macrophage inflammatory response.

Secreted factors produced by adipose tissue are involved in the pathogenesis of cardiovascular disease. We previously identified adipolin, also known as C1q/Tnf-related protein 12, as an insulin-sensitizing adipokine. However, the role of adipolin in vascular disease remains unknown. Here, we investigated whether adipolin modulates pathological vascular remodeling.

Hypoglycemia Abrogates the Vascular Endothelial Protective Effect of Exenatide in Type 2 Diabetes Mellitus.

Glucagon-like peptide-1 (GLP-1) receptor agonists improve postprandial glucose, lipid metabolism, and vascular endothelial function. However, little is known about the effect of hypoglycemia on vascular endothelial function in patients on GLP-1 receptor agonist therapy. The aim of the present study was to determine the effect of hypoglycemia on vascular endothelial function in patients with type 2...

Role of endothelial NAD+ deficiency in age-related vascular dysfunction.

Age-related alterations in endothelium and the resulting vascular dysfunction critically contribute to a range of pathological conditions associated with old age. To rationally develop therapies that improve vascular health and thereby increase health span and lifespan in older adults, it will be essential to understand the cellular and molecular mechanisms contributing to vascular aging. Pre-clin...

Chronic treatment with acetylcholinesterase inhibitors attenuates vascular dysfunction in spontaneously hypertensive rats.

Acetylcholinesterase inhibition prevents autonomic imbalance, reduces inflammation and attenuates the development of hypertension. Considering that vascular dysfunction is a crucial feature of arterial hypertension, we investigated the effects of chronic administration of acetylcholinesterase inhibitors - pyridostigmine or donepezil - on vascular reactivity of spontaneously hypertensive rats (SHR)...

Implanted vascular access device related deep vein thrombosis in oncology patients: A prospective cohort study.

Implanted vascular access devices (IVADs) have significantly improved the management of cancer patients. These patients are at an increased risk of venous thromboembolism and IVADs are a known risk factor. We sought to assess the incidence of IVAD-related upper extremity deep vein thrombosis (IVAD-related UEDVT) associated with BioFlo® IVADs (Angiodynamics, Inc.).

MSC-derived sEVs enhance patency and inhibit calcification of synthetic vascular grafts by immunomodulation in a rat model of hyperlipidemia.

Vascular grafts often exhibit low patency rates in clinical settings due to the pathological environment within the patients requiring the surgery. Mesenchymal stem cell (MSC)-derived small extracellular vesicles (sEVs) have attracted increasing attention. These sEVs contain many potent signaling molecules that play important roles in tissue regeneration, such as microRNA and cytokines. In this st...

A focus on vascular malformations.

In Vivo Label-free Functional Photoacoustic Monitoring of Ischemic Reperfusion.

Pressure ulcer (PU) formation is a common problem among patients confined to bed or restricted to wheelchairs. The ulcer forms when the affected skin and underlying tissues go through repeated cycles of ischemia and reperfusion, leading to inflammation. This theory is evident by intravital imaging studies performed in immune cell-specific, fluorescent reporter mouse skin with induced ischemia-repe...

Inhibitory effects of scoparone from chestnut inner shell on platelet-derived growth factor-BB-induced vascular smooth muscle cell migration and vascular neointima hyperplasia.

The chestnut (Castanea crenata) inner shells have diverse effects such as anti-cancer, and anti-oxidant activities. We therefore explored the effects of extract from chestnut inner shells and its bioactive molecule scoparone on vascular smooth muscle cell migration and vessel damage.

Dipeptidyl peptidase-4 inhibition prevents vascular dysfunction induced by β-adrenergic hyperactivity.

Chronic stimulation of the β-adrenergic sympathetic system induces vascular dysfunction which is associated with increased inflammatory cytokines production. A recently proposed therapy to control vascular injury through inflammatory processes involves inhibition of the enzyme dipeptidyl peptidase-IV (DPP4). The present study investigates whether the inhibition of DPP4 prevents the increase in in...

Short term Pm2.5 exposure caused a robust lung inflammation, vascular remodeling, and exacerbated transition from left ventricular failure to right ventricular hypertrophy.

Heart failure (HF) is the single largest cause for increased hospitalization after fine particulate matter (PM2.5) exposure. Patients with left HF often progress to right ventricular (RV) failure even with optimal medical care. An increase of PM2.5 of 10 μg per cubic meter was associated with a 76% increase in the risk of death from cardiovascular disease in 4 years' period. However, the role a...

Vascular Depression and Cognition in Mexican Americans.

Mexican Americans are at increased risk of developing mild cognitive impairment (MCI) and Alzheimer's disease compared to non-Hispanic whites. This study sought to examine the relationship between vascular risk, depression, and cognition in Mexican American elders.

Three-dimensional reconstruction of soybean nodules provides an update on vascular structure.

In many cases, the functioning of a biological system cannot be correctly understood if its physical anatomy is incorrectly described. Accurate knowledge of the anatomy of soybean [Glycine max (L.) Merril] nodules and its connection with the root vasculature is important for understanding its function in supplying the plant with nitrogenous compounds. Previous two-dimensional anatomical observatio...

Segmentation of pulmonary vascular tree by incorporating vessel enhancement filter and variational region-growing.

Automatic segmentation of pulmonary vascular tree in the thoracic computed tomography (CT) image is a promising but challenging task with great clinical potential values. It is difficult to segment the whole vascular tree in reasonable time and acceptable accuracy.

Nicotine-mediated autophagy of vascular smooth muscle cell accelerates atherosclerosis via nAChRs/ROS/NF-κB signaling pathway.

Cigarette smoking is an established risk factor for atherosclerosis. Nicotine, the major constituent of cigarettes, mediates the phenotype switching of vascular smooth muscle cells (VSMCs) and contributes to atherogenesis. Recent studies show that autophagy regulates atherogenesis via several pathways. The aim of this study is to determine whether nicotine regulates autophagy and subsequently medi...

Limitations of Vascular Quality Initiative-derived models to predict the outcomes of intervention for infrapopliteal limb-threatening ischemia.

The purpose of this study was to validate published Society for Vascular Surgery Vascular Quality Initiative (VQI) prediction models for patients with limb-threatening ischemia (LTI) undergoing open or endovascular revascularization for infrapopliteal occlusive disease.

Emphysematous Aortitis by Clostridium septicum: A Rare and Lethal Complication of Right Colon Cancer.

Sickle cell retinopathy: What we now understand using optical coherence tomography angiography. A systematic review.

For over four decades, efforts have been underway for the evaluation of sickle cell retinopathy (SCR) in an attempt to identify peripheral high-risk vascular abnormalities based on Goldberg's classification (gold-standard) (1971). The macula is an area in the center of the retina that is responsible for high-resolution central vision and is also affected in SCR. With the development of new technol...

Corrigendum to Six-Month Outcomes After High-Risk Coronary Artery Bypass Graft Surgery and Preoperative Intra-aortic Balloon Counterpulsation Use: An Inception Cohort Study Journal of Cardiothoracic and Vascular Anesthesia,Volume 32, Issue 5, October 2018, Pages 2067-2073.

Del Nido Cardioplegia Should Be Used in All Adults Undergoing Cardiac Surgery: Con.

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