Modulation of macrophage structure and function by low level He–Ne laser irradiation
Abstract
Studies have shown that He–Ne laser irradiation can affect the biological functions of macrophages. The aim of the present study was to investigate the effect of He–Ne laser irradiation on the various functional parameters of macrophages and look for possible correlations in the effects to understand the mechanisms involved. Mice peritoneal macrophages were irradiated with a He–Ne laser (632.8 nm, ∼10 W m−2) at energy densities ranging from 100 to 600 J m−2 and the activities of lysozyme and cathepsin, phagocytosis, and cell spreading (markers of cell