Adenosinergic modulation of the EEG and locomotor effects of the A2 agonist, CGS 21680

Cynthia A. Janusz, Robert F Berman

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The present study in rats was designed to identify the respective roles of A1 and A2 adenosine receptor activation in the anticonvulsant and behavioral actions of adenosine. Intracaudate injections of the highly selective A2 agonist, CGS 21680, did not affect caudate seizures. However, seizure threshold was increased in the presence of CGS 21680 after blockade of the A1 receptor with CPX, or following activation of the A1 receptor with R-PIA or NECA. Additionally, CGS 21680 led to a dose-related inhibition of locomotor activity when injected into the caudate. These results implicate the involvement of the A2 adenosine receptor in the locomotor depressant actions of adenosine and also suggest possible A2 anticonvulsant effects may depend upon the activation of the A1 receptor.

Original languageEnglish (US)
Pages (from-to)913-919
Number of pages7
JournalPharmacology, Biochemistry and Behavior
Volume45
Issue number4
DOIs
StatePublished - 1993
Externally publishedYes

Fingerprint

Electroencephalography
Adenosine A2 Receptors
varespladib methyl
Chemical activation
Modulation
Anticonvulsants
Adenosine
Seizures
Adenosine-5'-(N-ethylcarboxamide)
Adenosine A1 Receptors
Locomotion
Rats
Injections
2-(4-(2-carboxyethyl)phenethylamino)-5'-N-ethylcarboxamidoadenosine

Keywords

  • Adenosine
  • Alkylxanthine
  • Anticonvulsant
  • Caudate nucleus
  • Locomotor activity

ASJC Scopus subject areas

  • Biochemistry
  • Behavioral Neuroscience
  • Pharmacology

Cite this

Adenosinergic modulation of the EEG and locomotor effects of the A2 agonist, CGS 21680. / Janusz, Cynthia A.; Berman, Robert F.

In: Pharmacology, Biochemistry and Behavior, Vol. 45, No. 4, 1993, p. 913-919.

Research output: Contribution to journalArticle

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