Blood flow distribution and the endothelial surface layer in the diabetic retina

Research output: Contribution to journalArticle

Authors

  • Norman R. Harris
  • Wendy Leskova
  • Gaganpreet Kaur
  • Randa S. Eshaq
  • Patsy R. Carter

External Institution(s)

  • LSU Health Sciences Center - Shreveport

Details

Original languageEnglish (US)
Pages (from-to)181-189
Number of pages9
JournalBiorheology
Volume56
Issue number2-3
StatusPublished - Jan 1 2019
Peer-reviewedYes

Abstract

Diabetic retinopathy is known as a microvascular complication of hyperglycemia, with a breakdown of the blood-retinal barrier, loss of pericytes, formation of microhemorrhages, early decreases in perfusion and areas of ischemia, with the latter speculated to induce the eventual proliferative, angiogenic phase of the disease. Our animal models of diabetic retinopathy demonstrate similar decreases in retinal blood flow as seen in the early stages of diabetes in humans. Our studies also show an alteration in the retinal distribution of red blood cells, with the deep capillary layer receiving a reduced fraction, and with flow being diverted more towards the superficial vascular layer. Normal red blood cell distribution is dependent on the presence of the endothelial surface layer, specifically the glycocalyx, which has been reported to be partially lost in the diabetic retina of both humans and animals. This review addresses these two phenomena in diabetes: altered perfusion patterns and loss of the glycocalyx, with a possible connection between the two.

    Research areas

  • capillary density, capillary perfusion, Glycocalyx, PECAM-1

Citation formats

APA

Harris, N. R., Leskova, W., Kaur, G., Eshaq, R. S., & Carter, P. R. (2019). Blood flow distribution and the endothelial surface layer in the diabetic retina. Biorheology, 56(2-3), 181-189. https://doi.org/10.3233/BIR-180200

Harvard

Harris, NR, Leskova, W, Kaur, G, Eshaq, RS & Carter, PR 2019, 'Blood flow distribution and the endothelial surface layer in the diabetic retina', Biorheology, vol. 56, no. 2-3, pp. 181-189. https://doi.org/10.3233/BIR-180200