[The effect of amiridin on the MPTP-induced Parkinson-like syndrome in monkeys].

Development of behavioral disturbances was investigated during N-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) administration (0,2 mg/kg, i/m, at 48 h. intervals, total dose 11.2-13.

[The effect of MPTP on the neuronal uptake of monoamines].

The results of kinetic analysis of synaptosomal uptake of dopamine, noradrenaline, adrenaline and serotonin showed the presence of their own carrier systems with high or low affinity for each monoamine. The low affinity system of the uptake of monoamines by nerve endings differs from extraneuronal one by higher affinity. MPTP noncompetitively inhibits the system of highly effective uptake of the studied monoamines by nerve endings, competitively inhibiting synaptosomal uptake with low affinity of noradrenaline, adrenaline and noncompetitively serotonin and dopamine.

[Attenuation of the action of morphine in rats immunized with a conjugated morphine-protein antigen].

The effect of immunization of rats with the conjugated antigen morphine-bovine serum albumin synthetized by the authors on the analgetic activity of morphine hydrochloride has been investigated. Morphine binding antibodies were shown to appear in the blood of rats during immunization. The spleen demonstrated mononuclear cells also capable of morphine binding.