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Published in: Lasers in Medical Science 5/2014

01-09-2014 | Original Article

The effects of a minimally invasive laser needle system on complete Freund’s adjuvant-induced arthritis

Authors: Heesung Kang, Taeyoon Son, Aeju Lee, Inchan Youn, Dong Hyun Seo, Han Sung Kim, Byungjo Jung

Published in: Lasers in Medical Science | Issue 5/2014

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Abstract

The present study aimed to investigate the effects of a minimally invasive laser needle system (MILNS) on the acute progression of arthritis. Previous studies showed controversial clinical results regarding the effects of low-level laser therapy on arthritis, with the outcomes depending upon stimulation parameters such as laser wavelength and dosage. Based on the positive effects of MILNS on osteoporotic mice, we hypothesized that MILNS could potentially suppress the progression of arthritis owing to its biostimulation effects. Eight C57BL/6 mice with complete Freund’s adjuvant (CFA)-induced arthritis were used as acute progression arthritis models and divided into the laser and control groups (n = 4 each). In the laser group, after minimally invasive laser stimulation, laser speckle contrast images (LSCIs) were obtained every 6 h for a total of 108 h. The LSCIs in the control group were obtained without laser stimulation. The effects of MILNS on the acute progression of arthritis were indirectly evaluated by calculating the paw area and the average laser speckle index (LSI) at the arthritis-induced area. Moreover, the macrophage population was estimated in the arthritis-induced area. Compared to the control group, the laser group showed (1) lower relative variations of the paw area, (2) lower average LSI in the arthritis-induced area, and (3) lower macrophage population in the arthritis-induced area. These results indicate that MILNS may suppress the acute progression of CFA-induced arthritis in mice and may thus be used as a potential treatment modality of arthritis in clinics.
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Metadata
Title
The effects of a minimally invasive laser needle system on complete Freund’s adjuvant-induced arthritis
Authors
Heesung Kang
Taeyoon Son
Aeju Lee
Inchan Youn
Dong Hyun Seo
Han Sung Kim
Byungjo Jung
Publication date
01-09-2014
Publisher
Springer London
Published in
Lasers in Medical Science / Issue 5/2014
Print ISSN: 0268-8921
Electronic ISSN: 1435-604X
DOI
https://doi.org/10.1007/s10103-014-1555-y

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