Nov 13, 2001

Effects of angiotensin III and angiotensin IV on pentylenetetrazol seizure susceptibility (threshold and kindling): interaction with adenosine A(1) receptors

Brain Research Bulletin
Jana TchekalarovaVasil Georgiev

Abstract

The effects of angiotensin (ANG) III and ANG IV on pentylenetetrazol (PTZ) seizure susceptibility--threshold and kindling in mice--as well as the influence of adenosine A(1) receptor agents (agonist and antagonist) on these effects were studied. It was found that ANG III and ANG IV increased dose-dependently the PTZ seizure threshold and decreased the seizure intensity in PTZ kindled mice. Cyclohexyladenosine (CHA), an adenosine A(1) receptor agonist, potentiated the effects of ANG III and ANG IV on the seizure threshold and kindling, whereas DPCPX (an A(1) receptor antagonist) reversed peptide-induced effects on the PTZ kindling. Taken together, ANG III and ANG IV decrease the PTZ seizure susceptibility. We could suggest that these effects are realized in part through interaction with adenosine A(1) receptors.

  • References22
  • Citations24

Citations

Mentioned in this Paper

Kindling, Neurologic
Receptors, Purinergic P1
Purinergic P1 Receptor Antagonists
Adenosine
Antagonist Muscle Action
Brain
Purinergic P1 Receptor Agonists
Single Seizure
Mouse, Inbred ICRC
Angiotensins

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