Immunization of BALB/c mice with glutamate-BSA conjugate reduced anxiety and improved passive avoidance retention, while in C57Bl/6 mice immunization disturbed passive avoidance retention, but had no effect on anxiety. Interstrain differences in the shuttle box behavior were found between control animals.
The effect of antiserotonin antibodies on basal electrocorticogram was studied in electrophysiological experiments on rats. Intracortical injection of 10 microg antiserotonin antibodies into the sensorimotor cortex induced epileptiform activity in this area. It is assumed that antiserotonin antibodies modulate activity of cortical neurons due to both binding serotonin molecules and interaction with serotonin receptors.
Electrophysiological experiments on Wistar rats demonstrated that prior immunization of animals with conjugates of dopamine and serotonin with bovine serum albumin, as well as with bovine serum albumin alone, played a partial protective role in relation to the subsequent development in these animals of experimental MPTP-induced depressive syndrome: immunized animals showed no signs of the depressive state such as decreases in the latency of onset of REM sleep and the development of epileptiform activity in the caudate-putamen complex, though the increase in the proportion of REM sleep in the overall structure of sleep persisted. Changes in the spectral characteristics of brain electrical activity and sleep structure during the development of experimental MPTP-induced syndrome in animals immunized with conjugates of dopamine and serotonin with bovine serum albumin and with bovine serum albumin alone were antigen-specific and reflected functional shifts in the activity of those neurotransmitter systems targeted by immunization, as well as others sensitive to changes in the body's immunological status.
We studied the effects of active immunization with glutamate-protein conjugates on behavioral reactions of C57Bl/6 and BALB/c mice in the open-field test and on animal anxiety in the tail suspension test. Antiglutamate antibodies produced different behavioral changes in mice of these strains.
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