The leukocyte blood formula under low-level laser irradiation and simulated stress

Abstract

Leukocyte formula and leukocyte coefficients are used as basic indices for determining adaptive reactions. Low-level laser irradiation (LLLI) may serve as a stress corrector. It was found out that the leukocyte formula after LLLI did not differ throughout the study from intact values of neutrophils, lymphocytes and monocytes. In the group of animals which were exposed to stress, there were marked neutrophilia, monocytosis and lymphopenia. In a day after stress, here was a tendency to restoring values to the level of intact ones in those groups where LLLI was applied at the previously alterated organism. The most significant LLLI effect at the stressed body was observed at the initial stage of the study. To assess stress-reactivity, the researchers calculated the index of adaptation tension (IAT) by Garkavi. In LLLI group, IAT decreased by 50% after preliminary alteration, but a week later it returned to intact values. LLLI effect caused the decline in the immunoreactivity index by 19% in an hour after LLLI exposure; but a day later this immunoreactivity index was close to control values. The present trial has shown that LLLI was effective for controlling post-stress disorders and for the activation of some adaptive, protective and compensatory processes.