Summary
Microvessels can be easily isolated from human brain samples obtained at autopsy. Human frontal cortex MAO type A and B activities are similar in microvessel and microvessel-free preparations. In microvessels, enzyme activities and the ratio of MAO type A to type B vary among the areas studied and could selectively regulate the passage of certain amines through the blood vessel wall.
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Acknowledgment. The technical assistance of N. Gentile and the financial support by NIMH grant MH31156 is gratefully acknowledged.
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Haenick, D.H., Ladman, R.K., Weiss, J. et al. Monoamine oxidase activities in human brain microvessels. Experientia 37, 764–765 (1981). https://doi.org/10.1007/BF01967968
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DOI: https://doi.org/10.1007/BF01967968