Pervasive social deficits, but normal parturition, in oxytocin receptor-deficient mice

Yuki Takayanagi, Masahide Yoshida, Isadora F. Bielsky, Heather E. Ross, Masaki Kawamata, Tatsushi Onaka, Teruyuki Yanagisawa, Tadashi Kimura, Martin M. Matzuk, Larry J. Young, Katsuhiko Nishimori

研究成果: ジャーナルへの寄稿学術誌査読

553 被引用数 (Scopus)

抄録

The oxytocin receptor (OXTR) and its ligand, oxytocin (OXT), regulate reproductive physiology (i.e., parturition and lactation) and sociosexual behaviors. To define the essential functions of OXTR, we generated mice with a null mutation in the Oxtr gene (Oxtr-/-) and compared them with OXT-deficient (Oxt-/-) mice. Oxtr-/- mice were viable and had no obvious deficits in fertility or reproductive behavior. Oxtr -/- dams exhibited normal parturition but demonstrated defects in lactation and maternal nurturing. Infant Oxtr-/- males emitted fewer ultrasonic vocalizations than wild-type littermates in response to social isolation. Adult Oxtr-/- males also showed deficits in social discrimination and elevated aggressive behavior. Ligand Oxt-/- males from Oxtr-/- dams, but not from Oxt+/- dams, showed similar high levels of aggression. These data suggest a developmental role for the OXT/OXTR system in shaping adult aggressive behavior. Our studies demonstrate that OXTR plays a critical role in regulating several aspects of social behavior and may have important implications for developmental psychiatric disorders characterized by deficits in social behavior.

本文言語英語
ページ(範囲)16096-16101
ページ数6
ジャーナルProceedings of the National Academy of Sciences of the United States of America
102
44
DOI
出版ステータス出版済み - 11月 1 2005
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 一般

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