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Open AccessArticle

Serum Autofluorescence, a Potential Serum Marker for the Diagnosis of Liver Fibrosis in Rats

by Yu-Tao Zhan 1,*, Li Li 1, Jing Weng 2, Xin Song 3, Shao-Qi Yang 4 and Wei An 5,*
1
Department of Gastroenterology and Hepatology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
2
Reproductive Medicine Center, Capital Medical University, Beijing 100069, China
3
Department of Clinic Laboratory, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
4
Department of Gastroenterology, the Affiliated Hospital of Ningxia Medical University, Yinchuan 750000, China
5
Department of Cell Biology, Municipal Laboratory for Liver Protection and Regulation of Regeneration, Capital Medical University, Beijing 100069, China
*
Authors to whom correspondence should be addressed.
Int. J. Mol. Sci. 2012, 13(9), 12130-12139; https://doi.org/10.3390/ijms130912130
Received: 16 June 2012 / Revised: 20 August 2012 / Accepted: 2 September 2012 / Published: 24 September 2012
(This article belongs to the Section Molecular Pathology, Diagnostics, and Therapeutics)
Fluctuations in serum autofluorescence (AF) intensity have recently been widely used as markers of certain diseases such as cancer. To determine the diagnostic value of serum AF intensity for liver fibrosis in rats, we induced liver fibrosis by subcutaneous injection of carbon tetrachloride into rats. The rat serum AF intensities were detected at the excitation wavelength of 337 nm and the emission wavelength of 512 nm. The degree of liver fibrosis was evaluated by Van Gieson’s staining. The relationship between serum AF intensity and the degree of liver fibrosis was analyzed by Spearman and Pearson Correlation. The diagnostic sensitivity and specificity of the serum AF was determined by analyzing the receiver operating characteristic (ROC) curves. Our results show that the serum AF intensity in the rat liver fibrosis model increased when compared with control rats eight weeks and twelve weeks post induction of liver fibrosis. However, there was no significant difference in serum AF intensity between fibrotic and control rats at four week post induction. Furthermore, serum AF intensity correlated positively with the severity of the degree of hepatic fibrosis. ROC analysis further suggested that serum AF intensity is a valid marker for staging fibrosis. Therefore, it may potentially be developed as a novel diagnostic tool for hepatic fibrosis. View Full-Text
Keywords: serum autofluorescence; hepatic fibrosis; diagnosis; noninvasive serum autofluorescence; hepatic fibrosis; diagnosis; noninvasive
MDPI and ACS Style

Zhan, Y.-T.; Li, L.; Weng, J.; Song, X.; Yang, S.-Q.; An, W. Serum Autofluorescence, a Potential Serum Marker for the Diagnosis of Liver Fibrosis in Rats. Int. J. Mol. Sci. 2012, 13, 12130-12139.

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