397,201 results match your criteria vascular formation


Georgian Med News 2021 Mar(312):125-132

Tbilisi State Medical University, Departments of Pharmaceutical Technology and Medical Pharmacology, Georgia.

In the present article is considered antihypertensive and cardioprotective action of epoxieicosatrienoic acids (EETs) analogues and soluble epoxide hydrolase (sEH) inhibitors. Being epoxygenase products of arachidonic acid metabolism EETs provide a wide spectrum of biological activity in different organs implicated in the regulation of arterial pressure, including vascular endothelium (VE), heart and kidney. EETs are acting as autocrine or paracrine agents producing vasodilation, reduction in salt and fluid retention. Read More

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Hypoxia-induced retinal pigment epithelium cell-derived bFGF promotes the migration and angiogenesis of HUVECs through regulating TGF-β1/smad2/3 pathway.

Gene 2021 May 5:145695. Epub 2021 May 5.

Department of Pediatric Ophthalmology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University. Electronic address:

Hypoxia promotes the secretion of basic fibroblast growth factor (bFGF) in retinal pigment epithelium (RPE), which plays an important part in retinopathy of prematurity (ROP). This study preliminarily explored the effect of hypoxia-induced RPE-derived bFGF on the biological functions of human umbilical vein endothelial cells (HUVECs). After cell culture in hypoxia conditions, the cell viability, apoptosis, and the expressions of bFGF and vascular endothelial growth factor A (VEGFA) in human RPEs were detected by 3-(4, 5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), flow cytometry, Western blot, RT-qPCR, or ELISA. Read More

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Current Approach to the Diagnosis and Treatment of Heterozygote and Homozygous FH Children and Adolescents.

Curr Atheroscler Rep 2021 May 8;23(6):30. Epub 2021 May 8.

Department of Molecular Medicine, Lipid Clinic and Atherosclerosis Prevention Centre, Immunohematology and Transfusion Medicine, Regional Centre for Rare Diseases, Extracorporeal Therapeutic Techniques Unit - Severe Genetic Dyslipidemias, Umberto I Hospital, 'Sapienza' University of Rome, Rome, Italy.

Purpose Of Review: To elucidate the current approach of care in pediatric patients with familial hypercholesterolemia (FH). We sought an answer to the question whether the advances and major changes in lipid management are relevant and apply to children and adolescents.

Recent Findings: Latest research findings clearly demonstrate that lowering cholesterol levels at a young age prevents vascular atherosclerotic changes and decreases cardiovascular events in adulthood and emphasizes the importance of early detection and intervention in the pediatric FH patients group. Read More

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False lumen enhancement characteristics on computed tomography angiography predict risk of aneurysm formation in acute type B aortic dissection.

Interact Cardiovasc Thorac Surg 2021 May 8. Epub 2021 May 8.

Department of Radiology, University of Michigan, Ann Arbor, MI, USA.

Objectives: Differential luminal enhancement [between true lumen (TL) and false lumen (FL)] results from differential flow patterns, most likely due to outflow restriction in the FL. We aimed to assess the impact of differential luminal enhancement at baseline computed tomography angiography on the risk of adverse events in patients with acute type B aortic dissection (TBAD).

Methods: Baseline computed tomography angiographies of patients with acute TBAD between 2007 and 2016 (n = 48) were analysed using three-dimensional software at multiple sites along the descending thoraco-abdominal aorta. Read More

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Sex differences in the association of prediabetes and type 2 diabetes with microvascular complications and function: The Maastricht Study.

Cardiovasc Diabetol 2021 May 7;20(1):102. Epub 2021 May 7.

Department of Internal Medicine, Maastricht University Medical Centre+, Maastricht, The Netherlands.

Background: Women with type 2 diabetes are disproportionally affected by macrovascular complications; we here investigated whether this is also the case for microvascular complications and retinal microvascular measures.

Methods: In a population-based cohort study of individuals aged 40-75 years (n = 3410; 49% women, 29% type 2 diabetes (oversampled by design)), we estimated sex-specific associations, and differences therein, of (pre)diabetes (reference: normal glucose metabolism), and of continuous measures of glycemia with microvascular complications and retinal measures (nephropathy, sensory neuropathy, and retinal arteriolar and venular diameters and dilatation). Sex differences were analyzed using regression models with interaction terms (i. Read More

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New challenges in vascular biology and medicine: from unravelling the mechanisms of neointima formation to the prevention of amputations and of ischaemic stroke.

Filippo Crea

Eur Heart J 2021 May;42(18):1715-1719

Department of Cardiovascular Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy.

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Quercetin inhibits invasion and angiogenesis of esophageal cancer cells.

Pathol Res Pract 2021 Apr 28;222:153455. Epub 2021 Apr 28.

Department of Gastroenterology, Renmin Hospital, Hubei University of Medicine, Shiyan 442000, Hubei Province, China.

Background: Esophageal carcinoma has poor prognosis and novel therapies for esophageal carcinoma are urgently needed. Quercetin is a natural flavonoid compound that can be found in many foods. In this study, we investigated the effects of quercetin on invasion and angiogenesis of esophageal cancer cells. Read More

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Possible contribution of hepatocyte secretion to the elevation of plasma exosomal arginase-1 in high-fat diet-fed mice.

Life Sci 2021 May 4:119588. Epub 2021 May 4.

Department of Environmental Medicine, Kochi Medical School, Kochi University, Kohasu, Oko-cho, Nankoku, Kochi 783-8505, Japan. Electronic address:

Aims: The elevation of arginase in vascular tissues decreases nitric oxide production, which is considered as an early step of atherosclerosis in obesity. Previously, we found that arginase-1, one of arginase isozymes, was elevated in the blood plasma of obese adults. The purpose of this study is to elucidate the mechanism by which obesity increases arginase-1 levels in the blood. Read More

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Pericyte-specific deletion of Ninjurin-1 induces fragile vasa vasorum formation and enhances intimal hyperplasia of injured vasculature.

Am J Physiol Heart Circ Physiol 2021 May 7. Epub 2021 May 7.

Department of Biochemistry, Division of Integrated Life Science; Department of Cardiovascular Regeneration and Innovation, Asahikawa Medical University, Asahikawa, 2-1-1 Midorigaoka-higashi, Asahikawa 078-8510, Japangrid.252427.4.

Adventitial abnormalities including enhanced vasa vasorum malformation are associated with development and vulnerability of atherosclerotic plaque. However, the mechanisms of vasa vasorum malformation and its role in vascular remodeling have not been fully clarified. We recently reported that Ninjurin-1 (Ninj1) is a crucial adhesion molecule for pericytes to form matured neovessels. Read More

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Characterization of Blue Light Treatment for Infected Wounds: Antibacterial Efficacy of 420, 455, and 480 nm Light-Emitting Diode Arrays Against Common Skin Pathogens Versus Blue Light-Induced Skin Cell Toxicity.

Photobiomodul Photomed Laser Surg 2021 May;39(5):339-348

Chair, Department of Virology and Microbiology, Centre for Biomedical Education and Research (ZBAF), University Witten/Herdecke, Witten, Germany.

To determine effective treatment strategies against bacterial infections of chronic wounds, we tested different blue light (BL)-emitting light-emitting diode arrays (420, 455, and 480 nm) against wound pathogens and investigated in parallel BL-induced toxic effects on human dermal fibroblasts. Wound infection is a major factor for delayed healing. Infections with and are clinically relevant caused by their ability of biofilm formation and their quickly growing antibiotics resistance. Read More

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Vitamin B12 Induces Hepatic Fatty Infiltration through Altered Fatty Acid Metabolism.

Cell Physiol Biochem 2021 May;55(3):241-255

Division of Metabolic and Vascular Health, Clinical Sciences Research Laboratories, Warwick Medical School, University of Warwick, University Hospital-Walsgrave Campus, Coventry, UK,

Background/aims: Rise in global incidence of obesity impacts metabolic health. Evidence from human and animal models show association of vitamin B12 (B12) deficiency with elevated BMI and lipids. Human adipocytes demonstrated dysregulation of lipogenesis by low B12 via hypomethylation and altered microRNAs. Read More

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Environmental oxygen regulates astrocyte proliferation to guide angiogenesis during retinal development.

Development 2021 May 7;148(9). Epub 2021 May 7.

Department of Neurobiology, Duke University School of Medicine, Durham, NC 27710, USA.

Angiogenesis in the developing mammalian retina requires patterning cues from astrocytes. Developmental disorders of retinal vasculature, such as retinopathy of prematurity (ROP), involve arrest or mispatterning of angiogenesis. Whether these vascular pathologies involve astrocyte dysfunction remains untested. Read More

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Nano drug delivery system reconstruct tumor vasculature for the tumor vascular normalization.

J Drug Target 2021 May 7:1-46. Epub 2021 May 7.

Department of Pharmaceutics, School of Pharmacy, Ningxia Medical University, No. 1160, Shengli Street, Yinchuan, 750004, China.

The specific tumor microenvironment plays a crucial role in the occurrence and development of tumors. Among them, the abnormal structure and function of blood vessels in the tumor microenvironment are obvious characteristics of the tumor. Abnormal blood vessels with high leakage can lead to impaired blood perfusion and non-specific leakage of blood components into the surrounding interstitial spaces. Read More

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Unravelling Magnetic Nanochain Formation in Dispersion for In Vivo Applications.

Adv Mater 2021 May 7:e2008683. Epub 2021 May 7.

Forschungszentrum Jülich GmbH, Jülich Centre for Neutron Science (JCNS-1) and Biological Matter (IBI-8), 52425, Jülich, Germany.

Self-assembly of iron oxide nanoparticles (IONPs) into 1D chains is appealing, because of their biocompatibility and higher mobility compared to 2D/3D assemblies while traversing the circulatory passages and blood vessels for in vivo biomedical applications. In this work, parameters such as size, concentration, composition, and magnetic field, responsible for chain formation of IONPs in a dispersion as opposed to spatially confining substrates, are examined. In particular, the monodisperse 27 nm IONPs synthesized by an extended LaMer mechanism are shown to form chains at 4 mT, which are lengthened with applied field reaching 270 nm at 2. Read More

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AMPA-Type Glutamate Receptors Associated With Vascular Smooth Muscle Cell Subpopulations in Atherosclerosis and Vascular Injury.

Front Cardiovasc Med 2021 20;8:655869. Epub 2021 Apr 20.

Laboratory of Immunobiology, Center for Bioelectronic Medicine, Department of Medicine, Center for Molecular Medicine, Karolinska Institute, Stockholm, Sweden.

Vascular smooth muscle cells (VSMCs) are key constituents of both normal arteries and atherosclerotic plaques. They have an ability to adapt to changes in the local environment by undergoing phenotypic modulation. An improved understanding of the mechanisms that regulate VSMC phenotypic changes may provide insights that suggest new therapeutic targets in treatment of cardiovascular disease (CVD). Read More

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scFv-Anti-LDL(-)-Metal-Complex Multi-Wall Functionalized-Nanocapsules as a Promising Tool for the Prevention of Atherosclerosis Progression.

Front Med (Lausanne) 2021 20;8:652137. Epub 2021 Apr 20.

Department of Clinical and Toxicological Analysis, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil.

Atherosclerosis can be originated from the accumulation of modified cholesterol-rich lipoproteins in the arterial wall. The electronegative LDL, LDL(-), plays an important role in the pathogenesis of atherosclerosis once this cholesterol-rich lipoprotein can be internalized by macrophages, contributing to the formation of foam cells, and provoking an immune-inflammatory response. Herein, we engineered a nanoformulation containing highly pure surface-functionalized nanocapsules using a single-chain fragment variable (scFv) reactive to LDL(-) as a ligand and assessed whether it can affect the LDL(-) uptake by primary macrophages and the progression of atherosclerotic lesions in mice. Read More

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Exosomal Transfer of miR-185 Is Controlled by hnRNPA2B1 and Impairs Re-endothelialization After Vascular Injury.

Front Cell Dev Biol 2021 20;9:619444. Epub 2021 Apr 20.

Department of Vascular Surgery, Zhongshan Hospital Fudan University, Shanghai, China.

Dysfunction of endothelial cells (ECs) contributes to restenosis after vascular reconstruction for patients with coronary artery disease (CAD). The intercellular communication between ECs and vascular smooth muscle cells (VSMCs) might be critical in the development of restenosis and can be mediated by exosomes carrying functional microRNAs. miR-185 is reported to be associated with atherosclerosis, whether it plays a similar role in restenosis is unknown. Read More

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ACR Appropriateness Criteria® Radiologic Management of Portal Hypertension.

J Am Coll Radiol 2021 May;18(5S):S153-S173

Specialty Chair, Froedtert & The Medical College of Wisconsin, Milwaukee, Wisconsin, Chair, FMLH credentials committee, Division chief of IR at Medical College of Wisconsin.

Cirrhosis is a heterogeneous disease that cannot be studied as a single entity and is classified in two main prognostic stages: compensated and decompensated cirrhosis. Portal hypertension, characterized by a pathological increase of the portal pressure and by the formation of portal-systemic collaterals that bypass the liver, is the initial and main consequence of cirrhosis and is responsible for the majority of its complications. A myriad of treatment options exists for appropriately managing the most common complications of portal hypertension, including acute variceal bleeding and refractory ascites. Read More

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Enhanced diversity and rock-weathering potential of bacterial communities inhabiting potash trachyte surface beneath mosses and lichens - A case study in Nanjing, China.

Sci Total Environ 2021 Apr 26;785:147357. Epub 2021 Apr 26.

Key Laboratory of Agricultural and Environmental Microbiology, Ministry of Agriculture, College of Life Science, Nanjing Agricultural University, Nanjing 210095, PR China.

Mosses and lichens have been shown to play an important role in enhancing global chemical weathering of the surface rock. However, there are no studies concerning the effects of mosses and lichens on the microbial communities inhabiting rock surfaces. In this study, culture-dependent and culture-independent analyses were employed to compare the diversity, composition, and rock-weathering activity of bacterial communities inhabiting potash trachyte surfaces covered by mosses (MR) and lichens (LR) with those inhabiting surrounding bare rock surfaces (BR). Read More

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Delayed Referral of Venous Ulcers Increases Resource Utilization.

J Vasc Surg Venous Lymphat Disord 2021 May 3. Epub 2021 May 3.

MedStar Washington Hospital Center, Washington, DC, USA.

Objective: Venous insufficiency is often not readily recognized as a contributing etiology to non-healing wounds by non-vascular surgery specialists, potentially delaying appropriate treatment to achieve wound healing and increasing health care costs. The objective of this study is to understand the time and resources used prior to definitive treatment of venous ulcers.

Methods: A single-institution retrospective chart review of C6 patients undergoing radiofrequency saphenous and perforator vein ablation (RFA) between May 2016 and January 2018 identified 56 patients with 67 diseased limbs. Read More

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Retinol-binding protein 4 in obesity and metabolic dysfunctions.

Mol Cell Endocrinol 2021 May 3:111312. Epub 2021 May 3.

Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI-MAG) of the Helmholtz Zentrum München at the University of Leipzig and University Hospital Leipzig, Germany; Medical Department III - Endocrinology, Nephrology, Rheumatology, University of Leipzig Medical Center, Germany.

Excessive increased adipose tissue mass in obesity is associated with numerous co-morbid disorders including increased risk of type 2 diabetes, fatty liver disease, hypertension, dyslipidemia, cardiovascular diseases, dementia, airway disease and some cancers. The causal mechanisms explaining these associations are not fully understood. Adipose tissue is an active endocrine organ that secretes many adipokines, cytokines and releases metabolites. Read More

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Results of endovascular aortic arch repair using the Relay Branch system.

Eur J Cardiothorac Surg 2021 May 6. Epub 2021 May 6.

Department of Cardiovascular Surgery, University Heart Center Freiburg-Bad Krozingen, Bad Krozingen, Germany.

Objectives: Our goal was to evaluate results of endovascular aortic arch repair using the Relay Branch system.

Methods: Forty-three patients with thoracic aortic pathology involving the aortic arch have been treated with the Relay Branch system (Terumo Aortic, Sunrise, FL, USA) in 10 centres. We assessed in-hospital mortality, neurological injury, treatment success according to current reporting standards and the need for secondary interventions. Read More

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Encephaloduroarteriosynangiosis (EDAS) treatment of moyamoya syndrome: evaluation by computed tomography perfusion imaging.

Eur Radiol 2021 May 6. Epub 2021 May 6.

Department of Radiology, The Affiliated Hospital of Jining Medical University, Jining, China.

Objective: To explore the value of computed tomography perfusion (CTP) imaging for evaluating the efficacy of encephaloduroarteriosynangiosis (EDAS) treatment of moyamoya syndrome (MMS).

Methods: Forty-three patients with MMS (48 hemispheres) who received EDAS treatment were examined using CTP and DSA before and after surgery. CTP of the ipsilateral cortex, contralateral mirror area, and pons region were measured, and the relative cerebral blood flow (rCBF) and volume (rCBV), mean transit time (rMTT), and time-to-peak (rTTP) were calculated. Read More

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Patient-specific iPSC-derived cardiomyocytes reveal abnormal regulation of FGF16 in a familial atrial septal defect.

Cardiovasc Res 2021 May 6. Epub 2021 May 6.

Department of Cardiovascular Surgery of the First Affiliated Hospital & Institute for Cardiovascular Science, Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Protection, Medical College, Soochow University, Suzhou, 215000, China.

Aims: Congenital heart disease (CHD) frequently occurs in newborns due to abnormal formation of the heart or major blood vessels. Mutations in the GATA4 gene, which encodes GATA binding protein 4, are responsible for atrial septal defect (ASD), a common CHD. This study aims to gain insights into the molecular mechanisms of CHD using human induced pluripotent stem cells (iPSCs) from a family cohort with ASD. Read More

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Assessment of endothelial progenitor cells, VEGF-A and SDF-1α in Hodgkin's lymphoma.

Blood Coagul Fibrinolysis 2021 Jun;32(4):266-272

Department of Pathophysiology, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Torun.

Recently, there is great interest in vasculogenesis, a process of the formation of new blood vessels from progenitor cells or angioblasts, in the pathogenesis of cancer. To the best of our knowledge, the evaluation of endothelial progenitor cells (EPCs) in Hodgkin's lymphoma has not yet been reported. The aim of the present study was to assess the number of EPCs and selected cytokines, such as vascular endothelial growth factor (VEGF-A) and stromal cell-derived factor (SDF-1α) involved in vasculogenesis in Hodgkin's lymphoma patients. Read More

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Distinct identities of leaf phloem cells revealed by single cell transcriptomics.

Plant Cell 2021 May;33(3):511-530

Institute for Molecular Physiology and Cluster of Excellence on Plant Sciences (CEPLAS), Heinrich-Heine-University Düsseldorf, Düsseldorf 40225, Germany.

The leaf vasculature plays a key role in solute translocation. Veins consist of at least seven distinct cell types, with specific roles in transport, metabolism, and signaling. Little is known about leaf vascular cells, in particular the phloem parenchyma (PP). Read More

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and growth inhibitory, anti-ovarian & anti-lung carcinoma effects of 1,5 diarylpenta-1,4-dien-3-one as synthetically modified curcumin analogue.

J Biomol Struct Dyn 2021 May 6:1-18. Epub 2021 May 6.

Department of Zoology, Molecular Endocrinology Lab, University of Lucknow, Lucknow, India.

The synthesized 1,5 diarylpenta-1,4-dien-3-one derivatives (compounds 1-6) as synthetic curcumin analogues were tested for their potential anticancer activity against human ovarian and lung adenocarcinoma cells. The absorption, distribution, metabolism, excretion, and toxicity (ADMET/pharmacokinetic) parameters of all the compounds were predicted by admetSAR software. The pharmacokinetics, pharmacodynamics and bioactivity scores properties based on Lipinski rule and Ghose filter, calculated with the help of Molinspiration and ChemDraw. Read More

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Senescence Osteoblast-Derived Exosome-Mediated miR-139-5p Regulates Endothelial Cell Functions.

Biomed Res Int 2021 15;2021:5576023. Epub 2021 Apr 15.

Department of Physiology, Guangxi Medical University, Nanning, China.

The pathogenesis of osteoporosis is considered extremely intricate. Osteoblast differentiation and angiogenesis can greatly affect bone development and formation, given their coupling role in these processes. Exosome-mediated miRNA regulates cellular senescence, proliferation, and differentiation. Read More

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Molecular evidence of the avocado defense response to infection: a deep transcriptome analysis using RNA-Seq.

PeerJ 2021 14;9:e11215. Epub 2021 Apr 14.

Catedrático CONACyT en la Red de Estudios Moleculares Avanzados, Instituto de Ecología A.C., Xalapa, Veracruz, México.

is a novel member of the Ambrosia Clade (AFC) that has been recognized as one of the symbionts of the invasive Kuroshio shot hole borer, an Asian ambrosia beetle. This complex is considered the causal agent of dieback, a disease that has severely threatened natural forests, landscape trees, and avocado orchards in the last 8 years. Despite the interest in this species, the molecular responses of both the host and during the infection process and disease establishment remain unknown. Read More

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