Neurochemical Research

, Volume 22, Issue 5, pp 629–636

Effects of Electroconvulsive Stimuli and MK-801 on Neuropeptide Y, Neurokinin A, and Calcitonin Gene-Related Peptide in Rat Brain

  • A. A. Mathé
  • S. Gruber
  • P. A. Jiménez
  • E. Theodorsson
  • C. Stenfors
Article

DOI: 10.1023/A:1022482322329

Cite this article as:
Mathé, A.A., Gruber, S., Jiménez, P.A. et al. Neurochem Res (1997) 22: 629. doi:10.1023/A:1022482322329

Abstract

Rats were pretreated with 0.9% NaCl, or 0.1 or 1.0 mg/kg MK-801, an anticonvulsant and a psychotomimetic drug, and 60 minutes later given ECS or sham ECS. After six sessions the animals were sacrificed and neuropeptide Y (NPY-), neurokinin A (NKA-), and calcitonin gene-related peptide (CGRP-) like immunoreactivity (-LI) measured with radioimmunoassays. ECS increased NPY-LI in frontal cortex, striatum, occipital cortex and hippocampus, and NKA-LI in occipital cortex and hippocampus. MK-801 increased CGRP in a dose-response manner in frontal cortex, and NKA-LI in occipital cortex. Although the higher MK-801 dose reduced seizure duration by 50%, the ECS induced NPY-LI increase in striatum, occipital cortex and hippocampus, and NKA-LI in occipital cortex was not diminished. In contrast, there was a parallel decrease in seizures and NPY-LI and NKA-LI changes in frontal cortex and hippocampus, respectively. Investigation of neuropeptides in brain may contribute to understanding of the mechanisms of action of antide-pressive and antipsychotic treatments and of psychotomimetic drugs.

Rat brainelectroconvulsive treatmentMK-801neuropeptide Yneurokinin Acalcitonin gene-related peptide

Copyright information

© Plenum Publishing Corporation 1997

Authors and Affiliations

  • A. A. Mathé
    • 1
  • S. Gruber
    • 1
  • P. A. Jiménez
    • 1
  • E. Theodorsson
    • 3
  • C. Stenfors
    • 4
  1. 1.Institution of Clinical NeuroscienceKarolinska Institute-St Görans HospitalStockholmSweden
  2. 2.Department of PsychiatrySt. Göran's HospitalStockholmSweden
  3. 3.Department of Clinical ChemistryUniversity HospitalLinköpingSweden
  4. 4.Department of Laboratory MedicineKarolinska HospitalStockholmSweden