Analysis of the influence of vasopressin neuropeptides on social recognition of rats

Autor: Jan M. van Ree, Ryuichi Sekiguchi, Gerrit Wolterink
Rok vydání: 1991
Předmět:
Zdroj: European neuropsychopharmacology : the journal of the European College of Neuropsychopharmacology. 1(2)
ISSN: 0924-977X
Popis: The facilitatory effect of vasopressin neuropeptides on social recognition of adult male rats was analyzed. The decrease of social investigation behaviors during a second encounter with the same juvenile rat served as index for social recognition. Treatment with desglycinamide-(Arg8)-vasopressin (6 mg·kg−1, s.c.) extended the time that adults recognize the same juvenile from 30 min to 24 h. Structure-activity studies revealed that the effect of vasopressin neuropeptides on social recognition resides in the 5–8 part of the AVP molecule. The peptide (pGlu4,Cyt6) AVP-(4–8) was more potent than DGAVP in this behavioral paradigm. These effects bear similarities with the memory enhancing effects of vasopressin neuropeptides as found in other test procedures.
Databáze: OpenAIRE