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. 2013 Aug 14;98(3):712–722. doi: 10.3945/ajcn.113.065235

TABLE 3.

The number of metabolites that were significantly different between PAPOLG genotypes 1 and 2 before and after the intervention in volunteers within the high-glucoraphanin broccoli arm (n = 19)1

Before intervention
After intervention
Pathway2 Higher in genotype 1 Higher in genotype 2 Higher in genotype 1 Higher in genotype 2
Amino acids (85) 8 3 1 5
Carbohydrates (23) 1 0 0 0
Cofactors and vitamins (15) 4 0 1 1
Energy (9) 3 0 0 0
Acylcarnitines (12) 8 0 0 0
Lipids (129) 32 0 0 23
Nucleotides (14) 2 0 1 3
Peptides (14) 0 1 0 0
Xenobiotics (46) 4 0 1 1
Total (347) 66 37
Median number after Y scrambling3 15 15
4 <0.0001 <0.02
1

All values are the number of metabolites within each class that reached the achieved statistical threshold (P < 0.05). Details of the metabolites and P values are provided elsewhere (see Supplemental Table S5 under “Supplemental data” in the online issue). t Tests were used to analyze differences in the log2 ion intensity of each metabolite between the genotypes before and after the intervention.

2

Numbers in parentheses are the total number of metabolites within each class.

3

The values were derived after 75,528 permutations of the data set.

4

The probability that the total number of metabolites found to be different would have occurred by chance, estimated from the frequency distribution of metabolites that reached the statistical threshold (P < 0.05) after 75,528 permutations of the data set.