title: New topics in vasopressin receptors and approach to novel drugs: involvement of vasopressin V1a and V1b receptors in nociceptive responses and morphine-induced effects.
abstract: Arginine vasopressin (AVP) receptors have been classified into V1a, V1b, and V2 subtypes. Recent studies have demonstrated the involvement of AVP in anti-nociception and in morphine-induced anti-nociception. However, the roles of individual AVP-receptor subtypes have not been fully elucidated. Here, we have summarized the role of V1-receptor subtypes in behavioral responses to noxious stimuli and to morphine. In this review, we focus on studies using mice lacking the V1a receptor (V1a(-/-) mice) and the V1b receptor (V1b(-/-) mice).
authors.affiliation: Department of Physiology and Pharmacology, Faculty of Pharmaceutical Sciences, Fukuoka University, Fukuoka, Japan. khonda@fukuoka-u.ac.jp
authors.forename: Kenji
authors.initials: K
authors.lastname: Honda
authors.forename: Yukio
authors.initials: Y
authors.lastname: Takano
mesh_terms: D000701:Analgesics, Opioid / Q000494:pharmacology; D000818:Animals; D001522:Behavior, Animal / Q000187:drug effects / Q000502:physiology; D004341:Drug Evaluation / Q000379:methods; D051379:Mice; D018345:Mice, Knockout; D009020:Morphine / Q000494:pharmacology*; D009619:Nociceptors / Q000502:physiology*; D010146:Pain / Q000503:physiopathology / Q000517:prevention & control; D017483:Receptors, Vasopressin / Q000235:genetics / Q000502:physiology*
chemical_list: D000701:Analgesics, Opioid; D017483:Receptors, Vasopressin; D009020:Morphine