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Erschienen in: Lasers in Medical Science 4/2009

01.07.2009 | Original Article

Effect of diode laser on enzymatic activity of parotid glands of diabetic rats

verfasst von: Alyne Simões, Emily Ganzerla, Paula Mochidome Yamaguti, Carlos de Paula Eduardo, José Nicolau

Erschienen in: Lasers in Medical Science | Ausgabe 4/2009

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Abstract

The aim of this study was to evaluate the effect of laser irradiation (LI) on enzymatic activities of amylase, catalase and peroxidase in the parotid glands (PG) of diabetic and non-diabetic rats. Ninety-six female rats were divided into eight groups: D0; D5; D10; D20 and C0; C5; C10; C20, respectively. Diabetes was induced by administration of streptozotocin and confirmed later by the glycemia results. Twenty-nine (29) days after the induction, the PGs of groups D5 and C5; D10 and C10; D20 and C20, were irradiated with 5 J/cm2, 10 J/cm2 and 20 J/cm2 of laser diode (660 nm/100 mW) respectively. On the following day, the rats were euthanized and the enzymatic activity in the PGs was measured. Diabetic rats that had not been irradiated (group D0) showed higher catalase activity (P < 0.05) than those in group C0 (0.14 ± 0.02 U/mg protein and 0.10 ± 0.03 U/mg protein, respectively). However, laser irradiation of 5 J/cm2 and 20 J/cm2 decreased the catalase activity of the diabetic groups (D5 and D20) to non-diabetic values (P > 0.05). Based on the results of this study, LI decreased catalase activity in the PGs of diabetic rats.
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Metadaten
Titel
Effect of diode laser on enzymatic activity of parotid glands of diabetic rats
verfasst von
Alyne Simões
Emily Ganzerla
Paula Mochidome Yamaguti
Carlos de Paula Eduardo
José Nicolau
Publikationsdatum
01.07.2009
Verlag
Springer-Verlag
Erschienen in
Lasers in Medical Science / Ausgabe 4/2009
Print ISSN: 0268-8921
Elektronische ISSN: 1435-604X
DOI
https://doi.org/10.1007/s10103-008-0619-2

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