Intraocular pressure lowering effects of novel arylpiperazine derivatives.
1998
ABSTRACT Arylpiperazine derivatives were synthesized and investigated in this study. Two animal models, including an intraocular pressure (IOP) recovery method and an α-chymotrypsin-induced glaucoma model, were used to determine the ocular pharmacological effects of the arylpiperazine derivatives. In the IOP recovery method, New Zealand rabbits with normal IOP were instilled with 50 μl of 0.5% eye drops, then 10% sodium chloride solution was infused through the ear marginal vein. The relative percent of IOPs were calculated, then △IOPt% was obtained from the difference of IOPt% between the treated and controlled eye. In the α-chymotrypsin-induced glaucoma model, the induced glaucoma rabbits were topically instilled with 0.5% arylpiperazines onto the eyes, and then the IOP changes were calculated to evaluate the effect of eye drops. Our results showed that in the IOP recovery method, BG31 and YCT2-2 demonstrated a very significant effect for reducing IOP; △IOPt% were -27.6 and -25.5 for BG31 and YCT2-2, re...
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