[Piracetam as a corrector of long-term learning disorders caused by prenatal alcohol exposure: the significance of the length of therapy].
Explore the source record for details and available documents.
Biomedical subjects
Publications and source records attributed to N M Smol'nikova.
Explore the source record for details and available documents.
Hypobaric hypoxia of the pregnant rats was followed by the reduction of weight gain of the newborn pups, delayed impairment of memory (passive and active tasks) and changes of extrapolative water escape. Piracetam (200 mg/kg/day) administered at early postnatal period (from 8th to 20th day of life) corrected behavioral disturbances and physical development in rats. Postnatal therapy by nootropics didn't influence in adaptive behavior damaged by prenatal hypoxia.
The effects of the synthetic dipeptide, L-pyroglutamyl-D-alaninamide (LPDA) were studied in the experiments on offspring of alcoholized during the pregnancy (5 g/kg/day) females. This dipeptide, which revealed the nootropic activity in previous experiments, was injected to the pups in dose of 1 mg/kg from 8 to 19 days of life. LPDA was shown to prevent the delayed disturbances of learning in passive avoidance test, of extrapolatory behaviour in escape test, to attenuate the emotional hyperreactivity. LPDA normalized EEG power spectrum, decreased interhemispheric asymmetry. This substance attenuated the disbalance evoked by prenatal alcoholization.
Cycloheximide, administered to 7-day-old rats, caused the delay of CNS activity changes in grown-up rats. The animals showed impaired memory function, expressed in the decrease of habituation in the "open field" test, and the alteration of passive avoidance reflex. The increased number of intersignal reactions due to hypermotility was found during elaboration of avoidance reflex. The analysis of evoked potential recovery revealed the deficiency of GABA-ergic inhibition in the neocortex. Piracetam was shown to prevent completely behavioural disturbances and deficiency of GABA-ergic processes in grown-up animals.
Explore the source record for details and available documents.
It has been established in experiments on mini pigs of Siberian origin that phenazepam given at a dose of 1 mg/kg per os during organogenesis has no embryotoxic or teratogenic action. The drug content in the blood of pregnant animals was determined simultaneously. A conclusion is drawn about perspectiveness of using mini pigs for testing embryotoxic activity of drugs.
In experiments on rats it was shown that carbidine injected intramuscularly for two weeks does not effect gonadotropic action in a dose effective in experimental therapy of alcohol dependence (4 mg/kg). The drug neither potentiates adverse after-effects of chronic action of ethanol on ovo- and spermatogenesis nor slows down the course of the reparative processes in the gonads after ethanol is discontinued. However, further regressive changes in the gonadal generative elements were recorded in administering carbidine against the background of continued use of ethanol.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.