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Vascular Endothelial Growth Factor (VEGF)

Includes 1 test
3 Days

Vascular endothelial growth factor (VEGF or VEGF-A), also known as vascular permeability factor (VPF), is a potent mediator of angiogenesis and vascular permeability in both fetuses and adults. Structurally, it is a homodimeric heparin-binding glycoprotein with a molecular weight of 34 to 45 kilodaltons. VEGF is produced by multiple types of cells and tissues including skeletal muscle and myocardium, hepatocytes, osteoblasts, neutrophils and blood macrophages, keratinocytes, brown adipose cells, CD34+ cells, endothelial cells, fibroblasts, and smooth muscle cells of the vessels. The expression of VEGF in these cells is induced by hypoxia and certain cytokines such as IL-1, IL-6, IL-8, oncostatin M, and TNF-α.

VEGF plays an important role in several physiological processes, including the creation of vessels during embryogenesis, wound healing, ovulation, menstruation, maintenance of blood pressure, and pregnancy.

VEGF has also been associated with various pathological processes that include angiogenesis, such as arthritis, psoriasis, macular degeneration, and diabetic retinopathy. In general, the growth and spread of tumors have been shown to depend on the development of increased vascular proximity to the tumor to provide adequate oxygenation of the cancer cells. In pathological tissues, VEGF increases vascular permeability. Thus, VEGF is thought to contribute to tumor metastasis by promoting both angiogenesis and the hematogenous dispersion of cancer cells. Increased expression of VEGF has been associated with poorer prognosis in patients with colorectal cancer, stomach, pancreas, breast, ovarian, prostate, and liver cancer, carcinoma of the oral epithelial cells, and melanoma.

VEGF has also been associated with autoimmune disease activity such as rheumatoid arthritis, multiple sclerosis, and systemic lupus erythematosus.

Serum VEGF levels are higher than its plasma levels. This is thought to reflect the fact that VEGF is released into the plasma by platelets as part of the thrombotic process. It has been hypothesized that VEGF released from activated platelets may play a role in angiogenesis during wound healing.



Important Note

Laboratory test results are the most important parameter for the diagnosis and monitoring of all pathological conditions. 70%-80% of diagnostic decisions are based on laboratory tests. The correct interpretation of laboratory results allows a doctor to distinguish "healthy" from "diseased".

Laboratory test results should not be interpreted from the numerical result of a single analysis. Test results should be interpreted in relation to each individual case and family history, clinical findings, and the results of other laboratory tests and information. Your personal physician should explain the importance of your test results.

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Additional information
Tests includedIncludes 1 test
Sample Blood
Procedure completion test
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