agr7 Nicotinic Receptor Agonists as Potential Therapeutic Drugs for Schizophrenia

Authors: Hashimoto, Kenji1; Koike, Kaori1; Shimizu, Eiji1; Iyo, Masaomi1

Source: Current Medicinal Chemistry - Central Nervous System Agents, Volume 5, Number 3, September 2005 , pp. 171-184(14)

Publisher: Bentham Science Publishers

Key:
Free Content - Free Content
New Content - New Content
Subscribed Content - Subscribed Content
Free Trial Content - Free Trial Content

Abstract:

Deficient inhibitory processing of the P50 auditory evoked potential is a measurable marker observed in schizophrenia. Several lines of evidence suggest that agr7 nicotinic receptors (agr7 nAChRs) play a critical role in P50 auditory sensory gating in the human brain. Similar to schizophrenic patients, DBA/2 mice spontaneously exhibit a deficit in inhibitory processing of the P20-N40 auditory evoked potential, which is a rodent analogue of the human P50 auditory evoked potential. Agonists at agr7 nAChRs improve deficient inhibitory processing of the P20-N40 auditory gating potential in DBA/2 mice. In this article, we review the role of agr7 nAChRs in the pathophysiology of schizophrenia, and agr7 nAChR agonists and indirect agonists (5-hydroxytryptamine-3 (5-HT3) receptor antagonists, positive allosteric modulators (galantamine, 5-hydroxyindole, PNU-120596), FK960, FR236924) at agr7 nAChRs as potential therapeutic drugs for the treatment of schizophrenia. In addition, we also discuss the role of kynurenic acid as an endogenous antagonist of agr7 nAChRs in brain.

Keywords: a nicotinic receptors; auditory gating; sensory gating; cognition; schizophrenia

Document Type: Review article

DOI: 10.2174/1568015054863828

Affiliations: 1: Dr. Kenji Hashimoto, Division of Clinical Neuroscience, Chiba University Center for Forensic Mental Health, 1-8-1 Inohana, Chiba 260-8670, Japan.

The full text electronic article is available for purchase. You will be able to download the full text electronic article after payment.

$55.10 plus tax      Refund Policy

 

OR

Back to top

Key:
Free Content - Free Content
New Content - New Content
Subscribed Content - Subscribed Content
Free Trial Content - Free Trial Content
Share this item with others: These icons link to social bookmarking sites where readers can share and discover new web pages.
Page Help Click here for Page Help
Shopping cart
Tools
Sign in






Need to register?
Sign up here
Text size: A | A | A | A