S.T. TULEUHANOV* , O.S. DESOUKY**, M.A. MOHASEB*
*Department of Physiology of Human and Animals and Biophysics, Faculty of biology, “Al-Faraby” Kazakh National University, Almaty, Kazakhstan
**Radiation Physics Department, National Center for Radiation Research and Technology (NCRRT), EAEA, POB 29 Madinat Nasr, Cairo, Egypt
Abstract. Recent interest in adverse effects of infrasound on organisms arises from health concerns. Infrasonic sound or infrasound is the sound produced below audible frequency range. Generation of infrasound can be found everywhere on the planet. During the 1970´s infrasound was a fairly popular topic within the scientific community. In spite of the loss of interest over the years, recently it has been gaining importance. In order to study the effect of infrasound on immunological properties of rats we measured the changes in the general and differential counts of white blood cells. For this purpose 20 albino rats, each of average weight 200–250 g were exposed to infrasonic wave in an infrasonic radiator with an exit of sound fluctuations from 13 to 30 Hz with intensity 10.9 to 14 dB. The animals were exposed to both infrasound directly for 10 minutes and indirectly irradiated through water exposed to infrasound for 10 minutes. The samples of blood collected before irradiation from rats as control and after exposure for 3, 6, 12, 30, 60 days. The obtained results show that the general leukocytic count significantly increases after direct and indirect exposure to infrasonic wave in all intervals groups; this is accompanied by significant increase in immature precursors. It can concluded from the obtained results that infrasound from 13 to 30 Hz with intensity range 10.9 to 14 dB can induce immunological changes. This changes are represented in the disturbance of the production of leukcocytic cells especially appearance of immature cells. This can be due to the effect of the intense infrasound on the resonant frequencies of body organs.
Key words: Infrasound, leukocytes, immunity