Journal of Pharmacological Sciences
Online ISSN : 1347-8648
Print ISSN : 1347-8613
ISSN-L : 1347-8613
Forum Minireviews
New Topics in Vasopressin Receptors and Approach to Novel Drugs:
Role of the Vasopressin Receptor in Psychological and Cognitive Functions
Nobuaki EgashiraKenichi MishimaKatsunori IwasakiRyozo OishiMichihiro Fujiwara
Author information

2009 Volume 109 Issue 1 Pages 44-49


Arginine vasopressin (AVP) is a neurohypophyseal peptide best known as an antidiuretic hormone. AVP receptors have been classified into three subtypes: V1a, V1b, and V2 receptors. V1a receptor (V1aR) and V1b receptor (V1bR) are widely distributed in the central nervous system, including the septum, cortex, hippocampus, and hypothalamus. Clinical studies have demonstrated an involvement of AVP in psychiatric disorders. In the present study, we examined the performance of V1aR or V1bR knockout (KO) mice compared to wild-type (WT) mice in behavioral tests. V1aR and V1bR KO mice exhibited deficits of social behavior and prepulse inhibition in comparison to WT mice. Moreover, V1aR KO mice exhibited reduced anxiety-like behavior and impairment of spatial learning. These results suggest that V1aR and V1bR play an important role in psychological and cognitive functions.

Information related to the author
© The Japanese Pharmacological Society 2009
Previous article Next article