Laser effects with energy density of 28.8, 86.4, 144 J/cm2 and 86.4 J/cm2 in combination with fluorine agents on succinate dehydrogenase (SDH) activity were studied in 264 noninbred white rats (5 groups). The animals were decapitated in 1, 6, 12, 24, 48, 72 h and 12 and 30 days. The findings evidence elevated SDH activity virtually in all periods tested. Laser exposure enhanced enzymic activity in all the animals.
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