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01.03.2009 | Original article

Laser phototherapy effect on protein metabolism parameters of rat salivary glands

verfasst von: Alyne Simões, Walter Luiz Siqueira, Marcelo Lazzaron Lamers, Marinilce Fagundes Santos, Carlos de Paula Eduardo, José Nicolau

Erschienen in: Lasers in Medical Science | Ausgabe 2/2009

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Abstract

The aim of this study was to evaluate the effects of infrared diode laser phototherapy (LP) on tissues of the submandibular gland (SMG) and parotid gland (PG). Wistar rats were randomly divided into experimental (A and B) and control (C) groups. A diode laser, 808 nm wavelength, in continuous wave mode, was applied to the PG, SMG and sublingual gland in the experimental groups on two consecutive days. The doses were 4 J/cm² and 8 J/cm², and total energy was 7 J and 14 J, respectively. The power output (500 mW) and power density (277 mW/cm²) were the same for both experimental groups. In order to visualize the area irradiated by the infrared laser, we used a red pilot beam (650 nm) with 3 mW maximum power for the experimental groups. For the control group, the red pilot beam was the only device used. The SMG and PG were removed after 1 week of the first irradiation. Total protein concentration, amylase, peroxidase, catalase and lactate dehydrogenase assays were performed, as well as histological analysis. Statistical tests revealed significant increase in the total protein concentration for groups A and B in the parotid glands (P < 0.05). Based on the results of this study, LP altered the total protein concentration in rats’ parotid glands.

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Titel: Laser phototherapy effect on protein metabolism parameters of rat salivary glands
verfasst von: Alyne Simões
Walter Luiz Siqueira
Marcelo Lazzaron Lamers
Marinilce Fagundes Santos
Carlos de Paula Eduardo
José Nicolau
Publikationsdatum: 01.03.2009
Verlag: Springer-Verlag
Erschienen in: Lasers in Medical Science / Ausgabe 2/2009
Print ISSN: 0268-8921
Elektronische ISSN: 1435-604X
DOI: https://doi.org/10.1007/s10103-008-0548-0

Springer Medizin

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