Title : Effects of oxytocin and vasopressin on retrieval of passive avoidance response in melatonin-treated and/or pinealectomized male rats.

Pub. Date : 1999

PMID : 11473233






2 Functional Relationships(s)
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1 Melatonin alone, when injected to shamoperated animals 30 min before behavioral experiment, did not affect the passive avoidance response in SA- or OT-treated rats, but blocked the VP-induced lengthening of the passive avoidance latency in the first retention trial. Melatonin arginine vasopressin Rattus norvegicus
2 We conclude that: a) VP needs a regulated pineal function for developing short-term effects on the passive avoidance response and b) the effect of OT on the avoidance latency in pinealectomized rats develops after melatonin treatment as a long-term effect. Melatonin arginine vasopressin Rattus norvegicus