Volume 31 #1

Contents

1. Sensory properties of reward pattern affect food preferences in rats
2. Probable role of p38 MAP-kinase in reception of infrared irradiation
3. Investigation of Src-kinase inhibitor PP2 effects on modulation of slow sodium channels by ouabain
4. Perimetric assessment of a blind zone margin at the extreme periphery of human temporal retina
5. LogMAR for visual acuity is worse than horsepower for electric lamp
6. Bright light induced freezing behavior in American cockroach, Periplaneta americana
7. Analysis of human eye movements in the management of self-propelled chassis with video eye-tracking interface system
8. Mechanisms of transduction of olfactory signals: the possible role of the contractive apparatus of the olfactory ciliae
9. Architecture of a system for computer vision-based vehicle detection and classification under natural conditions
10. Localization of a stereo camera equipped robot using poles with known location as landmarks

Low-power (nonthermal) infrared (IR) irradiation activates transducer function of Na+, K+-ATPase that might be realized as basic molecular mechanism of reception for the stimuli of this modality. Investigation of neurite growth of sensory neurons of 10–12-days chicken embryos was done using organotypic tissue culture method. Low-power IR irradiation (energy density was equal to 2 ⋅ 10–10 J/cm2) inhibited the neurite growth. Participation of p38 MAPK in regulation of the transducer-coupled mechanism of intracellular signalization triggered by IR irradiation was elucidated using SB239063 inhibitor of p38 MAPK. Combined action of IR irradiation and SB239063 (1 mkM) eliminated inhibiting effect of IR irradiation on neurite growth. The data obtained allow to conclude that p38 MAPK participates in intracellular cascade processes in sensory neuron that are transducer-coupled triggered by low-power IR irradiation generated by СО2-laser.

Key words: sensory neuron, organotypic tissue culture, p38 MAPK, Na+, K+-АТPase, infrared irradiation

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