Increased level of platelet P-selectin in nonarteritic anterior ischemic optic neuropathy

  • Valeria Nagy
  • Bence Kolozsvari
  • Zsuzsa Balogh
  • Adrienne Csutak
  • Marta Kasza
  • Bela NagyJr
  • Laszlo Kardos
  • Andras Berta
  • Gyorgy Pfliegler
Neurophthalmology

DOI: 10.1007/s00417-012-2196-0

Cite this article as:
Nagy, V., Kolozsvari, B., Balogh, Z. et al. Graefes Arch Clin Exp Ophthalmol (2013) 251: 917. doi:10.1007/s00417-012-2196-0

Abstract

Purpose

P-selectin receptor is expressed in platelets and endothelial cells in a cell-activation-dependent manner. Platelet P-selectin (CD62) levels may become elevated in a number of vasoocclusive diseases, including arteriosclerosis, atherothrombosis, and diabetes mellitus (DM). Nonarteritic anterior ischemic optic neuropathy (NAION) is associated with a sudden loss of vision due to the vascular insufficiency of ciliary arteries supplying the optic nerve. In this study, our aim was to investigate the presence of increased platelet reactivity in the development of NAION.

Methods

Twenty-one NAION patients, 39 healthy control subjects, and 44 patients suffering from diabetes mellitus (DM) were examined in our case-control, pilot study. Platelet activation was investigated by flow cytometric analysis of the mean fluorescence intensity (MFI) of CD62 on platelets. These results were compared among the different study groups.

Results

NAION patients showed considerably although not signifactly (p = 0.2017) higher P-selectin MFI values (71.98 ± 40.30) versus healthy subjects (55.48 ± 20.95), insulin-dependent DM patients (50.02 ± 13.08), and non-insulin-dependent DM subjects (54.72 ± 24.74). However, logistic regression analysis resulted in a statistically significant adjusted effect on the odds of NAION when CD62 MFI values were logarithmically transformed (OR: 3.86, 95 % CI: 1.10 to 13.53, p = 0.0346).

Conclusion

Elevated platelet CD62 positivity may be related to NAION, suggesting a possible role of enlarged platelet activity in the generation of this type of ischemic optic neuropathy.

Keywords

Nonarteritic anterior ischemic optic neuropathy (NAION)Arteriae ciliares posteriores brevesP-selectinMean fluorescence intensityFlow cytometry

Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Valeria Nagy
    • 1
  • Bence Kolozsvari
    • 1
  • Zsuzsa Balogh
    • 1
  • Adrienne Csutak
    • 1
  • Marta Kasza
    • 2
  • Bela NagyJr
    • 3
  • Laszlo Kardos
    • 4
  • Andras Berta
    • 1
  • Gyorgy Pfliegler
    • 5
  1. 1.Department of Ophthalmology, Medical and Health Science CenterUniversity of DebrecenDebrecenHungary
  2. 2.Department of OphthalmologyHungarian Military HospitalBudapestHungary
  3. 3.Department of Laboratory Medicine, Medical and Health Science CenterUniversity of DebrecenDebrecenHungary
  4. 4.Kenezy Hospital — Institute of InfectologyDebrecenHungary
  5. 5.Division of Rare Diseases, Medical and Health Science CenterUniversity of DebrecenDebrecenHungary