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Anxiety and platelet MAO levels after relaxation training

Published Online:https://doi.org/10.1176/ajp.138.3.371

The authors measured platelet MAO activity with phenylethylamine and tryptamine substrates in a group of 20 subjects with chronic anxiety before and after they underwent relaxation training. Levels of anxiety were quantified using a self-rating scale. Posttreatment values for anxiety and enzyme activity were significantly lower than pretreatment values. Anxiety and enzyme activity levels were not significantly correlated at any stage of the study.

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