생쥐를 이용한 스테로이드 유발 고안압 모델

• 영문명: Steroid-Induced Ocular Hypertension Model in the Mice
• 발행기관: 대한안과학회
• 저자명: 김유라 강완석 권의용 조남천 이동욱,You Ra Kim, MD, Wan Seok Kang, MD, Eui Yong Kweon, MD, Nam Chun Cho, MD, Dong Wook Lee, MD
• 간행물 정보: 『대한안과학회지』Ophthalmological Society,volume55,number8, 1202~1207쪽, 전체 6쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 2014.08.15

영문 초록

Purpose: To determine whether rat eyes develop increases in intraocular pressure (IOP) in response to a topically applied corticosteroid and to investigate the relationship between ocular hypertension and apoptosis of retinal ganglion cells. Methods: IOP was monitored by rebound tonometry in a group of 10 rats that received topically administered dexamethasone in both eyes (experimental) and in another group of 5 rats that received artificial tears (control) three times daily for 4 weeks after the establishment of baseline IOP values. Only eyes that increased by more than 50% compared with the basal IOP were administered once per day for 5 weeks. After 8 weeks, selective immunofluorescence stain for retinal ganglion cells and terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) stain were conducted. Results: Among 20 experimental eyes, 11 eyes (55%) showed a greater than 50% increase in IOP compared with basal IOP. After 8 weeks, the mean IOPs for the experimental and control groups were 11.8 ± 1.4 mm Hg and 18.5 ± 1.0 mm Hg, respectively (p < 0.01). The counts of central retinal ganglion cells (RGCs) were 2718 ± 240 and 2612 ± 443, respectively (p = 0.294). The results of the TUNEL stain also showed no differences. Conclusions: Rat eyes exhibit a steroid-induced ocular hypertensive response with no local complications. However, maintaining ocular hypertension increased by 50% for two months was not enough to detect changes in RGCs. J Korean Ophthalmol Soc 2014;55(8):1202-1207

키워드

Ocular hypertension, Retinal ganglion cell, Steroid-induced glaucoma