The present work discusses effect of infrared (IR) femtosecond laser irradiation on neoplasm of white
mice with experimental cervical cancer- 5 (CC-5 on the 20th and 30th days after tumor transplantation). Tumor
tissue was irradiated by femtosecond erbium doped fiber laser: the wavelength is 1.55 μm, average and peak
powers are1,25 mW and 6kW, respectively, irradiation trials n=10. The average energy density (energy dose)
on a tissue for two groups of animals was 0,24 J/cm2 and 0,36 J/cm2 for a single trial. Irradiation was
followed by biochemical determination of LPO AOS parameters (“Lipid peroxidation-antioxidants” system):
malondialdehyde (MDA), activity of superoxide dismutase (SOD), catalase and glutathione-reductase (GR),
glutathione-S-transferase (GST). A subsequent morphological study of tumor tissue was performed.
Mathematical analysis of data demonstrates a weak dependence of the studied parameters on energy
dose. The latter implies the trigger effect of IR femtosecond laser irradiation on redox-dependent processes in
neoplasm at experimental cervical cancer.