نتایج جستجو برای: vascular density

تعداد نتایج: 621090  

Journal: :The American journal of physiology 1998
Robert J Tomanek Kapildeo Lotun Edward B Clark Padma R Suvarna Norman Hu

We tested the hypothesis that early vascularization of the embryonic heart is enhanced after bolus injections of vascular endothelial growth factor (VEGF) and basic fibroblast growth factor (bFGF) into the vitelline vein before the onset of myocardial vasculogenesis (3.5 days, stage 21). Electron and light microscopy were utilized to obtain morphometric data. At stages 29 and 31, myocardial ves...

Journal: :Cardiovascular research 2010
Prasanna K Venkatesh Christopher B Pattillo Billy Branch Jay Hood Steven Thoma Sandra Illum Sibile Pardue Xinjun Teng Rakesh P Patel Christopher G Kevil

AIMS Anti-platelet agents, such as dipyridamole, have several clinical benefits for peripheral artery disease with the speculation of angiogenic potential that could preserve ischaemic tissue viability, yet the effect of dipyridamole on ischaemic arteriogenesis or angiogenesis is unknown. Here we test the hypothesis that dipyridamole therapy augments arteriolar vessel development and function d...

2014
Bernardo Gomes de Lacerda Almeida Carlos E Bacchi Jesus P Carvalho Cristiane R Ferreira Filomena M Carvalho

OBJECTIVE Ovarian mucinous metastases commonly present as the first sign of the disease and are capable of simulating primary tumors. Our aim was to investigate the role of intratumoral lymphatic vascular density together with other surgical-pathological features in distinguishing primary from secondary mucinous ovarian tumors. METHODS A total of 124 cases of mucinous tumors in the ovary (63 ...

2016
Yunjie Tong Lia M. Hocke Kimberly P. Lindsey Sinem B. Erdoğan Gordana Vitaliano Carolyn E. Caine Blaise deB. Frederick

Blood-oxygen-level dependent (BOLD) signals are widely used in functional magnetic resonance imaging (fMRI) as a proxy measure of brain activation. However, because these signals are blood-related, they are also influenced by other physiological processes. This is especially true in resting state fMRI, during which no experimental stimulation occurs. Previous studies have found that the amplitu...

2011
Eric P. Davidson Lawrence J. Coppey Brian Dake Mark A. Yorek

We sought to determine the effect of dipeptidyl peptidase IV (DPP-IV) inhibition on streptozotocin diabetes-induced vascular and neural dysfunction. After 4 weeks of untreated diabetes, rats were treated for 12 weeks with Alogliptin (DPP-IV inhibitor). Diabetes caused a slowing of motor and sensory nerve conduction velocity, thermal hypoalgesia, reduction in intraepidermal nerve fiber density i...

Journal: :Brain research 2012
Enrike G Argandoña Harkaitz Bengoetxea Susana Bulnes Irantzu Rico-Barrio Naiara Ortuzar Jose V Lafuente

VEGF is the major angiogenic and vascular permeability factor in health and disease. Vascular development depends on function, and in sensory areas is experience-dependent. Our aim was to investigate, qualitatively and quantitatively, the effects of intracortical infusion and neutralisation of VEGF during the first days of the critical visual period, when peak levels of endogenous VEGF secretio...

Journal: :journal of lasers in medical sciences 0
reza fekrazad laser research center in medical sciences (lrcms), aja university of medical sciences- laser research center of dentistry (lrcd), school of dentistry, tehran university of medical sciences, tehran, iran katayoun am kalhori laser research center in medical sciences (lrcms), aja university of medical sciences- laser research center of dentistry (lrcd), school of dentistry, tehran university of medical sciences, tehran, iran nasim chiniforush laser research center of dentistry (lrcd), school of dentistry, tehran university of medical sciences, tehran, iran

vascular lesions rise from abnormalities in blood vessels or endothelial proliferation . capillary hemangiomas are formed by small capillaries surrounded by a layer of endothelial cells in a connective tissue stroma . various treatments are used for these conditions like excisional surgery , sclerotherapy, and recently laser irradiation. in this case study, we report successful treatment of int...

Journal: :journal of current ophthalmology 0
حسین آقایی hossein aghaei کورش شهرکی kourosh shahraki

purpose : to report clinical and pathologic result of a young patient with isolated cavernous hemangioma of conjunctiva case report : a 26-year-old man who presented with smooth, red, lobular surface mass was seen in the bulbar conjunctiva in temporal side with engorged episcleral and conjunctival vessels around the lesion. excisional biopsy was performed. pathologist confirmed the diagnosis of...

Journal: :Annals of the rheumatic diseases 1992
A J MacGregor V B Dhillon A Binder C A Forte B C Knight D J Betteridge D A Isenberg

Fasting cholesterol, triglyceride, low density lipoprotein cholesterol, high density lipoprotein cholesterol, apoprotein AI, and apoprotein B were measured in 64 patients with systemic lupus erythematosus to assess the risk factors for vascular disease. The relation between the lipid profile, steroid treatment, the presence of anticardiolipin antibodies, and the prevalence of vascular disease w...

2012
Xavier Descombes Franck Plouraboué Abdelhakim El Boustani Caroline Fonta Géraldine Le Duc Raphael Serduc Timm Weitkamp

Micro-tomography produces high resolution images of biological structures such as vascular networks. In this paper, we present a new approach for segmenting vascular network into pathological and normal regions from considering their micro-vessel 3D structure only. We consider a partition of the volume obtained by a watershed algorithm based on the distance from the nearest vessel. Each territo...

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