Optoacoustic detection of tissue glycation
Ghazaryan A, Omar M, Tserevelakis GJ, Ntziachristos V (2015)
Publication Type: Journal article
Publication year: 2015
Journal
Book Volume: 6
Pages Range: 3149-3156
Article Number: A039
Journal Issue: 9
DOI: 10.1364/BOE.6.003149
Abstract
Oxidative-based diseases including diabetes, chronic renal failure, cardiovascular diseases and neurological disorders are accompanied by accumulation of advanced glycation endproducts (AGE). Therefore, AGE-associated changes in tissue optical properties could yield a viable pathological indicator for disease diagnostics and monitoring. We investigated whether skin glycation could be detected based on absorption changes associated with AGE accumulation using spectral optoacoustic measurements and interrogated the optimal spectral band for skin glycation determination. Glycated and non-glycated skin was optoacoustically measured at multiple wavelengths in the visible region. The detected signals were spectrally processed and compared to measurements of skin autofluorescence and to second harmonic generation multiphoton microscopy images. Optoacoustic measurements are shown to be capable of detecting skin glycolysis based on AGE detection. A linear dependence was observed between optoacoustic intensity and the progression of skin glycation. The findings where corroborated by autofluorescence observations. Detection sensitivity is enhanced by observing normalised tissue spectra. This result points to a ratiometric method for skin glycation detection, specifically at 540 nm and 620 nm. We demonstrate that optoacoustic spectroscopy could be employed to detect AGE accumulation, and possibly can be employed as a non-invasive quick method for monitoring tissue glycation.
Involved external institutions
Germany (DE)How to cite
APA:
Ghazaryan, A., Omar, M., Tserevelakis, G.J., & Ntziachristos, V. (2015). Optoacoustic detection of tissue glycation. Biomedical Optics Express, 6(9), 3149-3156. https://doi.org/10.1364/BOE.6.003149
MLA:
Ghazaryan, Ara, et al. "Optoacoustic detection of tissue glycation." Biomedical Optics Express 6.9 (2015): 3149-3156.
BibTeX: Download