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0002-9491/87/6605-0264$02.00/0 AMERICAN JOURNAL OF PHYSICAL MEDICINE Vol. 66, No. 5 Copyright 0 1987 by The Williams & Wilkins Co. Printed in U.S.A. EFFECT OF NEGATIVE AIR IONIZATION ON HYPERACTIVE AND AUTISTIC CHILDREN' ALAYNE YATES, M.D.,2, FRANK GRAY, M.S.3, LARRY E. BEUTLER, PH.D.4, DAVID E. SHERMAN, M.D.5, AND ELIZABETH M. SECERSTROM, M.ED.~ INTRODUCTION Serotonin (5-HT) is a neurohormone with far reaching neurovascular, endocrine and metabolic effects throughout the body. Alterations in serotonin have been implicated in sleep, mood, activity level, and anxiety. In animal research, exposure to negative ions decreases brain serotonin (Krueger et al., 1968; Diamond, 1980) by enhancing its oxidative deamination (Krueger, 1978). Exposure to negative ions increases the responsiveness of rats' forebrain neurons to serotonin (Dowdall, 1985) and the long term exposure of rats living in an enriched environment to negative air ionization demonstrates a signifi- cant reduction of brain serotonin and cyclic AMP (Diamond et al., 1980). Elevated blood levels of serotonin are present in some autistic, severely retarded, and attentional deficit disorder children (Irwin et al., 1981; Geller et al., 1982; Takahashi et al., 1976; Goldman et al., 1979). Morton and Kershner (1984) demonstrate an improvement in memory and attention in both learning disabled and
American Journal of Physical Medicine – Wolters Kluwer Health
Published: Jan 1, 2007
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