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Miron Baron, MD; Lauren Asnis, MS; Rhoda Gruen, MA; Morton Levitt, PhD

Arch Gen Psychiatry. 1983;40(3):275-279.

Abstract
• Plasma amine oxidase (PAO) activity was studied in 52 chronic schizophrenics, 130 first-degree relatives, and 36 normal control subjects. Enzyme activity was shown to be a heritable and stable characteristic. Age and sex effects were not present. Patients had lower PAO activity than did control subjects, although the difference fell short of statistical significance. Within families, reduced PAO activity was associated with schizophrenia spectrum disorders.

Author Affiliations
From the Department of Psychiatry, Columbia University College of Physicians and Surgeons, and the New York State Psychiatric Institute, New York.

Footnotes
Accepted for publication May 17, 1982.

Reprint requests to New York State Psychiatric Institute, 722 W 168th St, New York, NY 10032 (Dr Baron).

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