Effect of naringenin on NaIO3-induced retinal pigment epithelium degeneration and laser-induced choroidal neovascularization in rats
10.3969/j.issn.1672-5123.2010.01.001
- VernacularTitle:Naringenin在碘酸钠诱导的视网膜色素上皮细胞变性和激光诱导的脉络膜新生血管鼠模型中的作用
- Author:
Yi, SHEN
;
Wan-Yu, ZHANG
;
George C Y CHIOU
- Publication Type:Journal Article
- Keywords:
naringenin;
sodium iodate;
laser;
retinal pigment epithelium;
age-related macular degeneration
- From:
International Eye Science
2010;10(1):1-4
- CountryChina
- Language:Chinese
-
Abstract:
AIM: To study the effects of naringenin eye drops on NaIO3-induced retinal pigment epithelium (RPE) degeneration and laser-induced choroidal neovascularization (CNV) in rat eyes.METHODS: The 35mg/kg NaIO3-induced RPE degeneration was prevented by 10g/L naringenin eye drops 3 times a day for 7 days in advance of NaIO3 injection, and then 2 to 4 weeks thereafter, RPE function was measured with C-wave of electroretinogram (ERG). The laser-induced CNV rats were treated with laser to break the Bruchs membrane and the CNV formation was prevented by 10g/L naringenin eye drops instilled 3 times a day for 2 to 4 weeks. The CNV formation was measured with fluorescein angiography (FA) and flat mount. RESULTS: Two weeks after NaIO3 injection, the amplitude of ERG C-wave fell markedly in NaIO3 group to 53% of normal group (P<0.01). No apparent difference was observed in naringenin+ NaIO3 group. Four weeks later, the NaIO3 group fell to 37% of normal group (P<0.01), while the naringenin+ NaIO3 group fell to only 57% of normal group (P<0.01). There is a 52% reversal of the ERG C-wave by naringenin as compared to NaIO3 treated group (P<0.05). Two weeks and four weeks after laser treatment, naringenin reduced the CNV formation to 53% and 49% of control group (100%) measured by FA (P<0.01). Four weeks after laser treatment, naringenin reduced the CNV formation by 47% as compared to control group measured with flat mount (P<0.01).CONCLUSION: Naringenin significantly protected RPE from NaIO3 induced degeneration and can also prevent CNV formation.
