Neuroprotective effect of rasagiline, a selective monoamine oxidase-B inhibitor, against closed head injury in the mouse
Huang W, Chen Y, Shohami E, Weinstock M.
Department of Pharmacology,
Hebrew University Hadassah School of Medicine,
Jerusalem, Israel.
Eur J Pharmacol. 1999 Feb 5;366(2-3):127-35.


The potential neuroprotective effects of rasagiline, N-propargyl-1R-aminoindan, a selective monoamine oxidase-B inhibitor and its inactive enantiomer TVP 1022, N-propargyl-1S-aminoindan were assessed against the sequelae of closed head injury in the mouse. Injury was induced in the left hemisphere under ether anaesthesia. Rasagiline (0.2 and 1 mg/kg) or TVP1022 (1 and 2 mg/kg) injected 5 min after injury accelerated the recovery of motor function and spatial memory and reduced the cerebral oedema by about 40-50%, (P < 0.01). The neuroprotective effects on motor function and spatial memory, but not on cerebral oedema, were prevented by scopolamine (0.2 mg/kg). Daily injection of rasagiline (1 mg/kg) from day 3 after injury accelerated the recovery of spatial memory but not motor function. Conclusions: Early administration of rasagiline or TVP1022 can reduce the immediate sequelae of brain injury. The mechanism of action does not appear to involve monoamine oxidase-B inhibition but could be mediated by the maintenance of cholinergic transmission in brain neurons.

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