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Poly(lactide-co-glycolide) (PLGA) nanoparticles coated with poloxamer 188 (Pluronic((R)) F-68) or polysorbate 80 (Tween((R)) 80) enable an efficient brain delivery of the drugs after intravenous injection. This ability was evidenced by two different pharmacological test systems employing as model drugs the anti-tumour antibiotic doxorubicin and the agonist(More)
Prolonged epileptic seizures during status epilepticus (SE) are known to cause neuronal death and lead to brain damage. Lesions in various brain regions can result in memory and cognitive impairment, thus searching of new neuroprotective drugs is important. We evaluated effects of single and chronic administration of ginseng extract on early and late(More)
The susceptibility to pentylenetetrazol (PTZ)-induced seizures during postnatal ontogeny [postnatal day (PN) 10-220] was investigated in two rat strains. The WAG/Rij strain, genetically prone for developing generalized absence epilepsy, and Wistar rats were tested and compared at PN 10, 26, 30, 70, 90, 125, and 220 on the PTZ-convulsive threshold. A(More)
This report addresses the verification of the hypothesis that arginine-vasopressin affects the formation of hyperthermia-evoked convulsions in early ontogenesis in rats on days 3, 5, 7, and 9 of postnatal life. The modification of experimental febrile convulsions by PACAP (pituitary adenylate cyclase-activating peptide) was investigated; PACAP is a(More)
Spontaneously occurring spike-wave discharges (SWDs) and serum concentrations of ovarian steroid hormones were investigated before, during and after pregnancy in WAG/Rij rats, a rat strain with genetically determined absence seizures. Eight groups of rats were included in the assays of progesterone and estradiol: rats at diestrus, at various days of(More)
Thyroliberin (TRH) promoting endogenous antidepressive effect is the most general regulator of the central mechanisms and visceral functions (especially respiration). Our group pioneered in applying the anticonvulsant action of TRH after local intranasal application. This application TRH in ultra-low doses contrast the method of systemic TRH administration(More)
The basics of neurophysiological, neurochemical and molecular mechanisms of epileptogenesis in early ontogeny are discussed. The role of developmental neuropathology, synaptogenesis; the role of glutamatergic and GABA-ergic transmitter systems are summarized. The candidates of genes in the childhood epilepsies, developmental changes in the expression of(More)
In comparison with the actions of other biologically active substances, ginsenosides, obtained from ginseng, have a nootropic spectrum of pharmacological activity, including improvements in memory fixation, antihypoxic actions, increases in the resistance of the central nervous system to damage due to trauma, electric shock, and toxic substances. The(More)