Abstract

We studied morphofunctional features of human platelets exposed in vitro to low-pulse laser radiation (LPLR) with different wavelengths. Platelet-rich plasma (PRP) was irradiated at wavelengths of 635, 488, and 355 nm. LPLR with λ=635 nm and 1 W power after 10 min caused degranulation of many platelets, formation of small platelet conglomerates, and accelerated platelet adhesion on glass. LPLR with λ=635 nm and 2 mW and LPLR with λ=488 nm did not cause significant changes in the morphofunctional platelet status. LPLR with λ=355 nm induced massive platelets' deformation, sharp decrease in their morphofunctional status without activation.

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