PMID: 9555116Apr 29, 1998Paper

Cellular alterations upon IR-laser (890 nm) exposures, in vivo

Pathology Oncology Research : POR
A I KolesnikovaG J Köteles

Abstract

Exposure of cultured cells and small animals to ionizing radiation as well as irradiation of cultured cells with He-Ne laser can cause changes in the functional condition of plasma membranes. The ionizing radiation-induced cell membrane alterations have been determined after either partial or local exposures. The aim of the present study was to reveal whether the local laser treatments cause a general, distant, so called abscopal" effect measured at cellular level, when the laser treatment is intended as a stimulatory procedure. The biological effect of infrared laser (mean power of 5 Watts, 150 Hz frequency, 890 nm wavelength) was demonstrated through 3H-concanavalin A binding by blood cells of daily irradiated (altogether 10 exposures) oncological and non-oncological patients as well as by changes in the proliferation of bone marrow cells of whole body gamma-irradiated (4 Gy) rats, partially laser-treated. The lectin binding of lymphocytes of oncological, as well as ischaemic heart disease patients was increased immediately after the first laser treatment. However, it was decreased after completion of the full course. In cases of inflammatory diseases the test parameters were either unchanged or decreased as compared to their...Continue Reading

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