July 1988
Volume 29, Issue 7
Free
Articles  |   July 1988
Experimental ischemia induces cell mitosis in the adult rat retina.
Author Affiliations
  • E Stefánsson
    National Eye Institute, Bethesda, Maryland.
  • C A Wilson
    National Eye Institute, Bethesda, Maryland.
  • T Schoen
    National Eye Institute, Bethesda, Maryland.
  • T Kuwabara
    National Eye Institute, Bethesda, Maryland.
Investigative Ophthalmology & Visual Science July 1988, Vol.29, 1050-1055. doi:
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      E Stefánsson, C A Wilson, T Schoen, T Kuwabara; Experimental ischemia induces cell mitosis in the adult rat retina.. Invest. Ophthalmol. Vis. Sci. 1988;29(7):1050-1055.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Experimental occlusion of the central retinal vessels in albino rats followed by reperfusion for 2 or 4 days resulted in a highly active proliferative response. Mitotic figures were produced in retinal vascular cells, presumed Müller cells, retinal pigment epithelial cells, and possibly other cell populations in the retina. A large number of mitoses were observed in 60-100% of 50 experimental eyes with 2, 4 or 6 hr of experimental ischemia and 2 or 4 days of reperfusion and in none of the 37 control eyes. Autoradiography demonstrated 3H-thymidine uptake in the retina and in vascular cells on a trypsin digest preparation of the retina. Retinal ischemia followed by reperfusion leads to mitosis of retinal cells. This suggests a causal relationship in proliferative retinopathies where ischemia and cell proliferation coincide.

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