Journal Of Traditional Chinese Medicine
Microbead injection induced a steady increase in intraocular pressure (IOP) of rats. Elevated IOP resulted in a progressive reduction in the number of CTB-labeled RGCs, 24 weeks after microbead injection. QF administration may moderately reduce IOP in the rat COH model and attenuate reduction of the number of CTB-labeled RGCs in COH rats. Furthermore, elevated IOP resulted in a progressive increase in the number of TUNEL-positive RGCs, 24 weeks after microbead injection, suggestive of an increase in the extent of RGC apoptosis. There was a significant reduction in the number of TUNEL-positive signals in QF-treated COH retinas, compared with untreated COH retinas.