Andrey Kostyuk

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We measured characteristics of thermal/pain (th/p) sensitivity of Helix albescens (threshold and latency of the avoidance behavioral reaction) under conditions of the hot-plate test. As was found, weakening (shielding) of the background electromagnetic field, as well as the action of low-intensity radiations of extremalfrequency ranges, induced two-phase(More)
Electromagnetic screening for several days induced triphasic changes in nociception in mollusks and mice: an initial phase of hyperalgesia was followed by an antinociceptive phase and subsequent normalization of measures of nociception. In mollusks, these changes developed more slowly and the hyperalgesia phase was more marked than in mice. Daily(More)
We studied the role of the opioid system in the modulation of thermonociceptive sensitivity of Helix albestens mollusks subjected within a 21-day-long period to the conditions of electromagnetic shielding, action of a weak extremely low-frequency oscillating magnetic field, and combination of the above factors. Results of blocking of opioid receptors by(More)
It has been found that long-term electromagnetic shielding (19 hours per day for 10 days) leads to an increase in the duration of passive swimming time in male rats, decrease the duration of active swimming in the "forced swim" test as well as decrease of libido. On the other hand animals kept under the "open field" conditions do not show significant(More)
Prolonged electromagnetic screening (19 hours/day for 10 days) was found to induce an increase in the duration of passive swimming and a decrease in the duration of active swimming in the Porsolt test in male rats, along with a decrease in sexual motivation. There were no significant changes in the animals’ behavior in an open field test. These results lead(More)
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