Vascular endothelial growth factor (VEGF) is a multifunctional cytokine with distinct functions in angiogenesis, lymphangiogenesis, vascular permeability, and hematopoiesis. VEGF is a highly conserved, disulfide-bonded dimeric glycoprotein of 34 to 45 kDa produced by several cell types including fibroblasts, neutrophils, endothelial cells, and peripheral blood mononuclear cells, particularly T ...

background: new blood vessels formation is a critical step in tumor progression. vascular density affects the clinical outcome and prognosis of malignant tumors. the aim of this study was to investigate the relation between the vascular endothelial growth factor (vegf) expression and vascular density with the clinical and histopathologic features in oral squamous cell carcinoma (oscc).   method...

uncontrolled hypertension is well- known to give rise to systemic complications involving multiple central organs. artherosclerosis leads to damage of the retinal vessels wall, contributing to venous stasis, thrombosis and finally, occlusion. retinal vein occlusions compromise vision through development of ischaemic maculopathy, macular oedema, and rubeotic glaucoma. laser photocoagulation rema...

objective(s):every year, a large number of people lose their lives due to stroke. stroke is the second leading cause of death worldwide. surprisingly, recent studies have shown that preconditioning with hyperoxia (ho) increases tissue tolerance to ischemia, ultimately reducing damages caused by stroke. addressed in this study are beneficial contributions from ho preconditioning into reduced har...

conclusions our study indicated that ace-d and vegf-g alleles can be an independent risk factor for microalbominuria in t2dm patients. results a total of 255 consecutive patients with t2dm and microalbuminuria (group a) and 235 patients with t2dm and normoalbuminuria (group b) were included in the study. in univariate analysis, the groups were statistically similar for all variables, except for...

objective: vascular endothelial growth factor (vegf) and vegf receptors (vegfrs) play important roles in angiogenesis of different developmental mechanisms such as wound healing, embryogenesis and diseases, including different types of cancer. vegfr2 is associated with cell proliferation, migration, and vascular permeability of endothelial cells. blocking vegf and its receptors is suggested as ...

Background: Vascular endothelial growth factor-A (VEGF-A), an endothelial cell-specific mitogen produced by various cell types, plays important roles in cell differentiation and proliferation. In this study we investigated the effect of recombinant VEGF-A on differentiation of mesenchymal stem cells (MSCs) to endothelial cells (ECs). Methods: VEGF-A was expressed in E. coli BL21 (DE3) and BL21...

vascular endothelial growth factor (vegf-a) is one of the most important regulatory factors in pathological and physiological angiogenesis. alternative splicing is a complicated molecular process in vegf-a gene expression which adds complexity to vegf-a biology. among all vegf-a exons, alternative splicing of exon 8 is the key determinant of isoform switching from pro-angiogenic vegf-xxx to ant...

Background: Vascular endothelial growth factor (VEGF) has a key role in angiogene-sis and in transplantation. The level of VEGF is related to the differences in the DNA sequence of its promoter region. Objectives: In this study, the association between the combination of VEGF –1154 G and –2578 C alleles and VEGF production by LPS-stimulated PBMCs was investigated. In addition; the relationship ...