This study was presented at the ASLMS annual meeting in Washington, DC, on April 5, 2009.
Article first published online: 25 JUN 2010
Copyright © 2010 Wiley-Liss, Inc.
Lasers in Surgery and Medicine
Volume 42, Issue 5, pages 371–378, July 2010
How to Cite
Croce, A. C., De Simone, U., Freitas, I., Boncompagni, E., Neri, D., Cillo, U. and Bottiroli, G. (2010), Human liver autofluorescence: An intrinsic tissue parameter discriminating normal and diseased conditions. Lasers Surg. Med., 42: 371–378. doi: 10.1002/lsm.20923
The authors who have taken part in this study declared that they do not have anything to disclose regarding funding from industry or conflict of interest with respect to this manuscript.
- Issue published online: 25 JUN 2010
- Article first published online: 25 JUN 2010
- Manuscript Accepted: 8 FEB 2010
- MIUR “PRIN 2006,”. Grant Number: 2006064975_002
- endogenous fluorophores;
Background and Objective
Autofluorescence (AF) emission is an intrinsic parameter that can provide real-time information on morpho-functional properties of biological tissue, being strictly related with their biochemical composition and structural organization. The diagnostic potentials of AF-based techniques have been investigated on normal, fibrotic, and steatotic liver tissues, in reference to histological features as evidenced by specific histochemical stainings.
Materials and Methods
AF emission under excitation at 366 nm has been examined on cryostatic tissue sections obtained from biopsies collected during surgical operation, by means of fluorescence imaging and microspectrofluorometric techniques.
NAD(P)H, collagen, and vitamin A were found to be the endogenous fluorophores characterizing normal, fibrotic, and steatotic liver tissue AF, respectively. The differences of their photo-physical properties, in terms of emission amplitude, spectral shape, and response to irradiation, give rise to modifications of overall AF signal collected from tissues that allow the liver conditions to be distinguished.
The study provides a valid premise for a development of AF-based optical biopsy techniques for a real-time discrimination of liver anatomo-pathological patterns. Lasers Surg. Med. 42:371-378, 2010. © 2010 Wiley-Liss, Inc.