Summary
The stereospecific form of the known acetylenic mechanismbased MAO-inhibitor AGN1135 (Rasagiline, TVP-1012) is devoid of sympathomimetic amphetamine-like properties.
To evaluate the efficiency and selectivity of subcutaneous injections of TVP-1012 (dose range from 0.01 up to 10mg/kg for 7 days) the activities of monoamine oxidases A and B (MAO-A,-B) were determined in different brain regions of the common marmoset.
At a dose of 0.1mg/kg TVP-1012, almost 80% of MAO-B activity is inhibited in all brain regions investigated (prefrontal and occipital cortex, cerebellum, caudate nucleus, putamen, nucleus accumbens). In contrast, MAO-A is not inhibited in putamen and nucleus accumbens. However, by increasing the TVP-1012 dose to 0.5mg/kg, MAO-A is inhibited to a significant extent as well, concomitant to total inhibition of MAO-B.
The results obtained indicate that TVP-1012 irreversibly inhibits both types of MAO in the common marmoset with selectivity for MAO-B at doses less than 0.5mg/kg. TVP-1012 could be useful in studies requiring selective MAO-B inhibition without concomitant sympathomimetic amphetamine-like effects and could thus be of therapeutic interest for Parkinson’s disease and retarded depression.
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Götz, M.E. et al. (1998). Chronic TVP-1012 (rasagiline) dose — activity response of monoamine oxidases A and B in the brain of the common marmoset. In: Finberg, J.P.M., Youdim, M.B.H., Riederer, P., Tipton, K.F. (eds) MAO — The Mother of all Amine Oxidases. Journal of Neural Transmission. Supplement, vol 52. Springer, Vienna. https://doi.org/10.1007/978-3-7091-6499-0_27
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DOI: https://doi.org/10.1007/978-3-7091-6499-0_27
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