An immunohistochemical analysis of the neuroprotective effects of memantine, hyperbaric oxygen therapy, and brimonidine after acute ischemia reperfusion injury
2011

Neuroprotective Effects of Memantine, Hyperbaric Oxygen, and Brimonidine in Rat Retinas

Sample size: 30 publication Evidence: moderate

Author Information

Author(s): Yiğit Ulviye, Erdenöz Serkan, Uslu Ünal, Oba Ersin, Cumbul Alev, Çağatay Halil, Aktaş Şamil, Eskicoğlu Emiray

Primary Institution: Bakırköy Dr. Sadi Konuk Training and Research Hospital Clinics of Eye Diseases, Istanbul, Turkey

Hypothesis

This study aims to compare the efficacy of memantine, hyperbaric oxygen therapy, and brimonidine in treating acute ischemia reperfusion injury in rat retinas.

Conclusion

Memantine, hyperbaric oxygen therapy, and brimonidine were effective in reducing damage from acute ischemia reperfusion in rat retinas.

Supporting Evidence

  • Memantine treatment resulted in a retinal ganglion cell count of 215.89±8.36.
  • HBO therapy resulted in a retinal ganglion cell count of 208.69±2.05.
  • Brimonidine treatment resulted in a retinal ganglion cell count of 172.27±8.16.
  • The apoptotic index was significantly lower in the treatment groups compared to the ARI group.
  • Memantine and HBO therapy showed similar neuroprotective effects.

Takeaway

This study tested three treatments to help protect rat eyes from damage after a lack of blood flow, and found that all three treatments helped.

Methodology

Thirty adult Wistar albino rats were divided into five groups and subjected to acute retinal ischemia, followed by treatment with memantine, HBO therapy, or brimonidine, and then evaluated histologically.

Limitations

The study was conducted on rats, and results may not directly translate to humans.

Participant Demographics

Thirty adult Wistar albino rats, 24 weeks old.

Statistical Information

P-Value

p<0.001

Statistical Significance

p<0.05

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