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Fig. 3 | Journal of Translational Medicine

Fig. 3

From: Discrimination of cirrhotic nodules, dysplastic lesions and hepatocellular carcinoma by their vibrational signature

Fig. 3

Spectroscopic and statistical analysis on proteins. Spectra were acquired using SR-FTIR on normal livers as controls (n = 5), cirrhosis and their corresponding HCC (n = 3). All spectra were baseline corrected within the 1760–1480 cm−1 region. Principal component analysis (PCA) was performed on spectra from a normal livers, cirrhosis and HCC or b only from cirrhosis and HCC. The score plot based on PC1 and PC2 is shown where each point represents one spectrum. c The average spectra corresponding to normal liver, cirrhosis and HCC tissues were extracted. d The ratio of two areas of Amide I band was calculated and plotted as boxplot highlighting the Amide I peak position shifts within each group. Unpaired Student t test was applied between control and cirrhosis/HCC. *: unpaired t test, p < 0.05

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