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. Author manuscript; available in PMC: 2014 Apr 5.
Published in final edited form as: Mol Biosyst. 2013 Feb 13;9(4):723–731. doi: 10.1039/c3mb25454b

Table 1.

Statistically significant features detected for different IR doses and time points.

Radiation dose Time No of peaks
Total number of features post XCMS processing

4Gy Day 1 7184
Day 4 7184
8Gy Day 1 7184
Day 4 7184

Total number of features selected by PLS-DA based on Standard Deviation*

4Gy Day 1 6421*
Day 4 6588*
8Gy Day 1 6478*
Day 4 6378*

Total number of significantly dysregulated features for different IR doses

4Gy Day 1 133
Day 4 147
8Gy Day 1 141
Day 4 111

Total number of features used for pathway analysis by IPA**

4Gy Day 1 56
Day 4 37
8Gy Day 1 28
Day 4 41
*

Feature selection based on standard deviation cut off of 10%.

**

Top 50 metabolites from each set were putatively identified via accurate mass based search with MMCD.