Journal of Autism and Developmental Disorders

, Volume 25, Issue 6, pp 641–654

Brief report: Circadian melatonin, thyroid-stimulating hormone, prolactin, and cortisol levels in serum of young adults with autism

  • Isaac Nir
  • Daniel Meir
  • Neli Zilber
  • Haim Knobler
  • Jacques Hadjez
  • Yaacov Lerner
Brief Reports

DOI: 10.1007/BF02178193

Cite this article as:
Nir, I., Meir, D., Zilber, N. et al. J Autism Dev Disord (1995) 25: 641. doi:10.1007/BF02178193

Abstract

An abnormal circadian pattern of melatonin was found in a group of young adults with an extreme autism syndrome. Although not out of phase, the serum melatonin levels differed from normal in amplitude and mesor. Marginal changes in diurnal rhythms of serum TSH and possibly prolactin were also recorded. Subjects with seizures tended to have an abnormal pattern of melatonin correlated with EEG changes. In others, a parallel was evidenced between thyroid function and impairment in verbal communication. There appears to be a tendency for various types of neuroendocrinological abnormalities in autistics, and melatonin, as well as possibly TSH and perhaps prolactin, could serve as biochemical variables of the biological parameters of the disease.

Copyright information

© Plenum Publishing Corporation 1995

Authors and Affiliations

  • Isaac Nir
    • 1
    • 2
  • Daniel Meir
    • 1
    • 2
  • Neli Zilber
    • 1
    • 2
  • Haim Knobler
    • 1
    • 2
  • Jacques Hadjez
    • 1
    • 2
  • Yaacov Lerner
    • 1
    • 2
  1. 1.Eitanim Psychiatric HospitalIsrael
  2. 2.Department of PharmacologyHebrew University-Hadassah Medical SchoolJerusalemIsrael