Summary
The possibility that increased levels of the activity of the semicarbazide-sensitive amine oxidase (SSAO) might, to some extent, compensate for the loss of monoamine oxidase (MAO) activity in the atypical form of Norrie Disease, was examined using the rat as a model. Long-term treatment with the MAO inhibitor tranylcypromine (1 mg/kg/day) resulted in sustained inhibition of MAO-A and MAO-B activities in liver and brain. After one week, the SSAO activity in heart had increased by 79% above the control levels. This increase was maintained for 3 weeks. Since such alterations might result from enzyme induction, the turnover of the enzyme was studied in cultured cells from rat aortic smooth muscle. The time-course of recovery of enzyme activity following irreversible inhibition by MDL 72145 corresponded to a half-life of approximately 6 days for this process.
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© 1998 Springer-Verlag Wien
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Fitzgerald, D.H., Tipton, K.F., Lyles, G.A. (1998). Studies on the behaviour of semicarbazide-sensitive amine oxidase in Sprague-Dawley rats treated with the monoamine oxidase inhibitor tranylcypromine. 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_25
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DOI: https://doi.org/10.1007/978-3-7091-6499-0_25
Publisher Name: Springer, Vienna
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