Omaida C. Velázquez

ORCID: 0000-0003-0841-0525
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About
Contact & Profiles
Research Areas
  • Aortic aneurysm repair treatments
  • Angiogenesis and VEGF in Cancer
  • Mesenchymal stem cell research
  • Aortic Disease and Treatment Approaches
  • Wound Healing and Treatments
  • Vascular Procedures and Complications
  • Cardiac, Anesthesia and Surgical Outcomes
  • Peripheral Artery Disease Management
  • Diabetic Foot Ulcer Assessment and Management
  • Cell Adhesion Molecules Research
  • Cerebrovascular and Carotid Artery Diseases
  • Central Venous Catheters and Hemodialysis
  • Cancer, Hypoxia, and Metabolism
  • Atherosclerosis and Cardiovascular Diseases
  • Infectious Aortic and Vascular Conditions
  • Renal and Vascular Pathologies
  • Vascular anomalies and interventions
  • Cardiovascular Health and Disease Prevention
  • Diversity and Career in Medicine
  • Connective Tissue Growth Factor Research
  • Electrospun Nanofibers in Biomedical Applications
  • Intracranial Aneurysms: Treatment and Complications
  • Acute Ischemic Stroke Management
  • Cardiac Valve Diseases and Treatments
  • Tissue Engineering and Regenerative Medicine

University of Miami
2016-2025

Clinical Research Management
2022

Codarts Rotterdam
2022

Bucheon University
2022

Society of Thoracic Surgeons
2020

Jackson Memorial Hospital
2009-2020

Dartmouth College
2019

University of Miami Health System
2019

Casa de Velázquez
2011-2016

University of Miami Hospital
2008-2015

Endothelial progenitor cells (EPCs) are essential in vasculogenesis and wound healing, but their circulating level numbers decreased diabetes. This study aimed to determine mechanisms responsible for the diabetic defect EPCs. Since mobilization of BM EPCs occurs via eNOS activation, we hypothesized that activation is impaired diabetes, which results reduced EPC mobilization. hyperoxia activates NOS other tissues, investigated whether restores mice through activation. Additionally, studied...

10.1172/jci29710 article EN Journal of Clinical Investigation 2007-05-01

Notch and its ligands play critical roles in cell fate determination. Expression of ligand vascular endothelium defects phenotypes targeted mutants the pathway have suggested a role for signaling vasculogenesis angiogenesis. However, angiogenic that controls gene expression is unknown. We show here endothelial growth factor (VEGF) but not basic fibroblast can induce Notch1 ligand, Delta-like 4 (Dll4), human arterial cells. The VEGF-induced specific mediated through VEGF receptors 1 2...

10.1128/mcb.23.1.14-25.2003 article EN Molecular and Cellular Biology 2002-12-13

We hypothesized that exposure to hyperbaric oxygen (HBO(2)) would mobilize stem/progenitor cells from the bone marrow by a nitric oxide (*NO) -dependent mechanism. The population of CD34(+) in peripheral circulation humans doubled response single 2.0 atmospheres absolute (ATA) O(2) for 2 h. Over course 20 treatments, circulating increased eightfold, although overall white cell count was not significantly increased. number colony-forming (CFCs) 16 +/- 26 3 CFCs/100,000 monocytes plated....

10.1152/ajpheart.00888.2005 article EN AJP Heart and Circulatory Physiology 2005-11-19

10.1007/978-1-4615-5967-2_14 article EN Advances in experimental medicine and biology 1997-01-01

The exact significance of collateral endoleaks is unknown and a topic great debate. Because this uncertainty, some physicians choose to watch wait while others aggressively treat these leaks. purpose investigation was the evaluation efficacy two techniques used in treatment that occur after endovascular aneurysm repair.Patients with 33 angiographically proven type 2 underwent either transarterial inferior mesenteric artery embolization (n = 20) or direct translumbar 13) during an 18-month...

10.1067/mva.2002.121068 article EN publisher-specific-oa Journal of Vascular Surgery 2002-01-01

Objective: The exact significance of collateral endoleaks is unknown and a topic great debate. Because this uncertainty, some physicians choose to watch wait while others aggressively treat these leaks. purpose investigation was the evaluation efficacy two techniques used in treatment that occur after endovascular aneurysm repair. Methods: Patients with 33 angiographically proven type 2 underwent either transarterial inferior mesenteric artery embolization (n = 20) or direct translumbar 13)...

10.1016/s0741-5214(02)32021-4 article EN publisher-specific-oa Journal of Vascular Surgery 2002-01-01

Hyperbaric oxygen (HBO) therapy has been used as an adjunctive for diabetic foot ulcers, although its mechanism of action is not completely understood. Recently, it shown that HBO mobilizes the endothelial progenitor cells (EPCs) from bone marrow eventually will aggregate in wound. However, gathering EPCs wounds impaired because decreased levels local stromal-derived factor-1α (SDF-1α). Therefore, we investigated influence on hypoxia-inducible factor 1 (HIF-1), which a central regulator...

10.1111/wrr.12253 article EN Wound Repair and Regeneration 2014-12-23

Fibroblasts are stromal cells ubiquitously distributed in the body of nearly every organ tissue. These were previously considered to be “passive cells”, solely responsible for ensuring turnover extracellular matrix (ECM). However, their versatility, including ability switch phenotypes response tissue injury and dynamic activity maintenance specific homeostasis integrity have been recently revealed by innovation technological tools such as genetically modified mouse models single cell...

10.3390/ijms25042172 article EN International Journal of Molecular Sciences 2024-02-11

An in vitro model has been developed to study migration, survival, proliferation, and capillary-like differentiation of human microvascular endothelial cells (HMVECs) an environment that avoids tumor promoters complex matrices. HMVEC monolayers were plated, then induced form three-dimensional, networks by overlaying with type I collagen followed a second overlay embedded fibroblasts. Detachment migration into the matrix was triggered within hours collagen, fibroblasts stimulated survival...

10.1096/fj.01-1011fje article EN The FASEB Journal 2002-06-07

To review the incidence and repair of inferior mesenteric arterial (IMA) type II endoleaks after endovascular abdominal aortic aneurysms.Fifty patients who underwent aneurysms were examined. If an endoleak was identified at 30-day postoperative computed tomography, conventional arteriography performed to identify eliminate its source. After exclusion attachment site leaks, a catheter placed selectively in superior artery (SMA). retrograde filling IMA aneurysm identified, coil embolization...

10.1148/radiology.215.2.r00ma17409 article EN Radiology 2000-05-01
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