FTY720 does not reduce infarct volume after cortical permanent ischemia.

Abstract

<p>Animals in the treatment groups (FTY720) received daily administrations of 1 mg/kg FTY720 by oral gavage starting at 48 h before infarct induction.I Infarct volumes were determined (<b>A</b>) at 3d (n = 8 per group, p = 0.73, 2 individual experiments) and (<b>B</b>) at 7d (n = 17, 0.54, 4 individual experiments) after infarct induction. Control animals received daily PBS injections. (<b>C</b>) Animals were treated daily with either FTY720 or PBS, starting from 3 h after MCAO and infarct volumes were determined at 7d after brain ischemia (n = 10, p = 0.43, 2 individual experiments). (<b>D</b>) Mice received a single dose of FTY720 or PBS at 48 h before brain ischemia and infarct volumetry was performed at day 7 (n = 10, p = 0.27). Behavioural dysfunction and recovery after experimental stroke was assessed in FTY720 pretreated animals (daily treatment starting 48 h before MCAO) or in control animals by the (<b>E</b>) “cylinder test” (n = 12, 3 individual experiments) and the (<b>F</b>) “corner test” (n = 12, 3 individual experiments).</p

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