O M Efremov

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Administration of Interleukin-1 beta (IL-1 beta) in pyrogenic and subpyrogenic doses induced a depression of social and exploratory behaviour in rats. A reduction in locomotor activity only occurred with pyrogenic doses of the IL-1 beta. The low dose induced the reduction whereas the high dose the increase of anxiety in elevated plus maze. The opposite(More)
Pure human interleukin-1 beta (IL-1 beta) and interleukin-6 (IL-6), both of natural origin, were found to cause fever in rabbits when injected into the PO/AH region of the brain. The threshold dose required for this effect was between 0.4 and 4 U, equivalent to 0.04 to 0.4 ng for IL-1 beta, and around 50 U, equivalent to 0.05 ng for IL-6. From this it was(More)
Prenatal administration of the n-cholinolytic ganglerone to pregnant female rats at different periods of gestation was found to lead to long-term changes in sexual behavior in pubescent offspring: there was a reduced dynamic of acquiring sexual experience and a very low level of sexual activity, with significant impairment to the motivational and(More)
Systemic intraperitoneal administration of polyamine agonist IEM-1460 containing the Me3N(+) group with a stable positive charge preventing permeation of this substance through the blood-brain barrier and polyamine antagonist arcaine had no effect on the development of seizures caused by intracerebral injection of N-methyl-D-aspartate in mice.(More)
The hypogonadal status of hemigonadectomised male rats has been choseh as a model of age-related sexual function decline in animals. The effect of dipeptide Vilon on parameters of sexual function and neuroendocrine status was studied. The results showed that regular introduction of Vilon in a dose of 50 microg per rat activates sexual function in old male(More)
Comparative doses (100-180 ng/kg) of highly purified human native interleukin-1 beta (nIL-1 beta) and human recombinant IL-1 beta (rIL-1 beta) intravenously injected were found to cause similar changes in body temperature in rabbits. Under these conditions, stabilization of rIL-1 beta by human serum albumin (HSA) fails to affect rIL-1 beta pyrogenic(More)
The pyrogenic potential of natural and recombinant human IL-1 beta in rabbits was found to be very similar when the substances were given intravenously. Under these conditions, stabilization of rIL-1 beta with human serum albumin (HSA) failed to affect the pyrogenic activity of recombinant IL-1 beta. When the two preparations were administered directly into(More)