Table 1.

Unique metabolites and their respective biochemical pathways in colonic-cecal contents and feces.

Colon-cecal contents	Feces
Unique metabolites
1-Hexadecanoyl-2-octadecadienoyl-sn-glycero-3-phosphocholine	1H-Indole-3-carboxylic acid
L-Alanyl-L-norleucine	1-Myristoyl-sn-glycero-3-phosphocholine
Leu-Val	1-Octadecanoyl-sn-glycero-3-phosphocholine
N-Palmitoylsphingosine	Betaine
Palmityl-L-carnitine	L-Carnitine
Pregnan-20-one, 17-(acetyloxy)-3-hydroxy-6-methyl-, (3b,5b,6a)-(A)	Nicotinamide adenine dinucleotide (NAD)
3a,12b-Dihydroxy-5b-cholanoic acid-(A)	Oxyquinoline
Deoxythymidine monophosphate (dTMP)	Pregnan-20-one, 17-(acetyloxy)-3-hydroxy-6-methyl-, (3b,5b,6a)-(B)
	13-hydroxy-9Z,11E-octadecadienoic acid
	3a,12b-Dihydroxy-5b-cholanoic acid-(B)
	UDP-N-acetyl-D-galactosamine
Respective biochemical pathways
Ether lipid metabolism	Primary bile acid biosynthesis
Glycerophospholipid metabolism	Tryptophan metabolism
Metabolic pathways	Biosynthesis of secondary metabolites
Choline metabolism in cancer	Ether lipid metabolism
Valine, leucine and isoleucine degradation / biosynthesis	Glycerophospholipid metabolism
Sphingolipid metabolism	Metabolic pathways
Bile secretion	Choline metabolism in cancer
Fatty acid degradation	Glycine, serine and threonine metabolism
Steroid hormone biosynthesis	ABC transporters
Secondary bile acid biosynthesis	Bile secretion
Pyrimidine metabolism	Fatty acid degradation
	Folate biosynthesis
	Nicotinate and nicotinamide metabolism
	Quinolines
	Phenylalanine, tyrosine and tryptophan biosynthesis
	Steroid hormone biosynthesis
	Biosynthesis of unsaturated fatty acids
	Linoleic acid metabolism
	Secondary bile acid biosynthesis
	Mucin type O-Glycan biosynthesis
	Amino sugar and nucleotide sugar metabolism
	Mucin type O-Glycan biosynthesis