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Journal of Biomedical Optics

Morphology alterations of skin and subcutaneous fat at NIR laser irradiation combined with delivery of encapsulated indocyanine green
Author(s): Irina Yu. Yanina; Nikita A. Navolokin; Yulia I. Svenskaya; Alla B. Bucharskaya; Galina N. Maslyakova; Dmitry A. Gorin; Gleb B. Sukhorukov; Valery V. Tuchin
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Paper Abstract

The goal of this study is to quantify the impact of the in vivo photochemical treatment of rats with obesity using indocyanine green (ICG) dissolved in saline or dispersed in an encapsulated form at NIR laser irradiation, which was monitored by tissue sampling and histochemistry. The subcutaneous injection of the ICG solution or ICG encapsulated into polyelectrolyte microcapsules, followed by diode laser irradiation (808 nm, 8    W / cm 2 , 1 min), resulted in substantial differences in lipolysis of subcutaneous fat. Most of the morphology alterations occurred in response to the laser irradiation if a free-ICG solution had been injected. In such conditions, membrane disruption, stretching, and even delamination in some cases were observed for a number of cells. The encapsulated ICG aroused similar morphology changes but with weakly expressed adipocyte destruction under the laser irradiation. The Cochran Q test rendered the difference between the treatment alternatives statistically significant. By this means, laser treatment using the encapsulated form of ICG seems more promising and could be used for safe layerwise laser treatment of obesity and cellulite.

Paper Details

Date Published: 25 May 2017
PDF: 7 pages
J. Biomed. Opt. 22(5) 055008 doi: 10.1117/1.JBO.22.5.055008
Published in: Journal of Biomedical Optics Volume 22, Issue 5
Show Author Affiliations
Irina Yu. Yanina, Saratov State Univ. (Russian Federation)
National Research Tomsk State Univ. (Russian Federation)
Nikita A. Navolokin, Saratov State Univ. (Russia)
Saratov State Medical Univ. (Russia)
Yulia I. Svenskaya, Saratov State Univ. (Russian Federation)
Alla B. Bucharskaya, Saratov State Medical Univ. (Russia)
Galina N. Maslyakova, Saratov State Medical Univ. (Russia)
Dmitry A. Gorin, Saratov State Univ. (Russia)
Gleb B. Sukhorukov, Saratov State Univ. (Russian Federation)
Queen Mary Univ. of London (United Kingdom)
Valery V. Tuchin, Saratov State Univ. (Russia)
National Research Tomsk State Univ. (Russia)
Institute of the Russian Academy of Sciences (Russia)

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