Abstract
Microvascular changes in diabetes are related to the presence of neuropathy and highlighted by increased vascular permeability and impaired autoregulation of blood flow and vascular tone. The functional impairment of the microcirculation has been attributed to deficiencies at the level of the nerve-axon reflex and endothelial cell dysfunction, resulting in diminished expression of endothelial nitric oxide synthetase and poly polymerase. Consequently, there is a diminished hyperemic response, resulting in failure to achieve maximal blood flow following injury. This observed functional ischemia may be a possible mechanism for the poor wound healing in diabetic foot ulcers.
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Abbreviations
- PAS:
-
Periodic acid Schiff
- ACh:
-
Acetylcholine
- SNP:
-
Sodium nitroprusside
- EDRF:
-
Endothelium-derived relaxing factor
- EDNO:
-
Endothelial-derived nitric oxide
- PKC:
-
Protein kinase C
- PARP:
-
Poly ADP-ribose polymerase
- AGEs:
-
Advanced glycosylated end products
- VPF:
-
Vascular permeability factor
- TXA2 :
-
Thromboxane
- PGH2 :
-
Prostaglandin
- vWF:
-
von Willebrand factor
- CAM:
-
Cellular adhesion molecule
- sICAM:
-
Soluble intercellular adhesion molecule
- sVCAM:
-
Soluble vascular cell adhesion molecule
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Tecilazich, F., Dinh, T., Kafanas, A., Veves, A. (2012). Microvascular Changes in the Diabetic Foot. In: Veves, A., Giurini, J., LoGerfo, F. (eds) The Diabetic Foot. Contemporary Diabetes. Humana Press, Totowa, NJ. https://doi.org/10.1007/978-1-61779-791-0_10
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