We investigated the effect of a single 2?g dose of vasopressin (AVP) analogue on the processes of retrieval of conditioned reflexes in rats with experimentally induced amnesia.The models used were: electroconvulsive shock (ECS) and hypoxia.It severely impaired the memory processes.The AVP analogue facilitated retrieval of passive avoidance in all animals.
The effects of bicuculline (0.25 mg/kg i.p.) and AP-7 (5 nmols icv) on the processes of retrieval, consolidation of conditioned reflexes, object recognition and locomotor activity were tested in rats. Neither AP-7, nor bicuculline nor AP-7 with bicuculline changed locomotor and exploratory activity in the open field test. Coadministration of AP-7 with bicuculline however, facilitated retrieval of passive avoidance in rats, but was without effect on consolidation in this test. Also neither AP-7 nor bicuculline when were given alone had an effect on influenced consolidation. We found no differences in effects of either AP-7 or bicuculline on object recognition regardless whether administered alone or in combination.
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