Prostanoids in the vitreous of diabetic and nondiabetic human eyes with retinal detachment

N. Naveh*, M. Belkin, O. Ben-Chaim, C. Weissman, G. Treister

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

We measured prostaglandin E2 (PGE2) and prostacyclin levels in the vitreous bodies of 5 eyes of patients with diabetic retinopathy complicated by rhegmatogenous retinal detachment (RRD) and compared them with the corresponding levels in 9 nondiabetic eyes with the same condition as well as with 10 control eyes of deceased patients with no known ocular pathology. We also studied the effect of surgical retinal reattachment on vitreal PGE2 and prostacyclin levels in 4 eyes. Vitreal samples from both nondiabetic and diabetic eyes with RRD were obtained during vitrectomy, while samples from deceased subjects (controls) were obtained 2-6 h after death. Vitreal PGE2 and prostacyclin levels in the control eyes approximated plasma levels (79.9 ± 20.5 and 124.5 ± 38.5 pg/ml, means ± SD, respectively), while RRD in the nondiabetic eyes was associated with increased levels of both PGE2 and prostacyclin (3,170 ± 3,024 and 467 ± 283 pg/ml, respectively). In the diabetic eyes with diabetic retinopathy complicated by RRD, all of which underwent retinal photocoagulation, PGE2 and prostacyclin levels were 2-4 times lower than those of the nondiabetic eyes with detached retina. Following surgical retinal reattachment, vitreal levels of both components in diabetics and nondiabetics showed a reduction suggesting that the surgical procedure for obtaining vitreal samples was not the cause for elevated prostaglandin levels in the eyes with detached retina. We showed that RRD is associated with an excessive accumulation of PGE2 and prostacyclin in the vitreous, which is higher in nondiabetic than in diabetic eyes, indicating that diabetic retinopathy in laser-treated eyes might lead to reduced vitreal levels of these metabolites.

Original languageEnglish
Pages (from-to)3-11
Number of pages9
JournalOphthalmic Research
Volume22
Issue number1
DOIs
StatePublished - 1990
Externally publishedYes

Keywords

  • Proliferative diabetic retinopathy
  • Prostacyclin
  • Prostaglandin E
  • Reattached retina
  • Rhegmatogenous retinal detachment
  • Vitreous

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