Analytical methods | ||
---|---|---|
Comparative study | #1 | |
Chromatography | GC | |
Ion source | EI | |
Positive/Negative mode | – | |
Mass analyzer | TOF | |
Identification level | – |
Sample information | ||
---|---|---|
Comparative study | #1 | |
Country | US | |
Specimen | tissue | |
Marker function | diagnosis | |
Participants(Case) | Cancer type | adenocarcinoma |
Stage | I | |
Number | 39 | |
Gender (M,F) | 15, 24 | |
Mean age (range) (M,F) | 72.33 ± 8.78 | |
Smoking status | smoker, non-smoker | |
Participants(Control) | Type | tumor vs. adjacent normal tissue |
Number | 39.0 | |
Gender (M,F) | 15, 24 | |
Mean age (range) (M,F) | 72.33 ± 8.78 | |
Smoking status | smoker, non-smoker |
Data processing and metabolite identification | |
---|---|
Data processing software | BinBase |
Database search | NIST11, BinBase |
Statistics and concentration information | |
---|---|
Differential analysis method | OPLS-DA |
Classification method | – |
Survival analysis method | – |
Metabolite | Comparative study | Author-emphasized biomarkers | Mean concentration (case) | Mean concentration (control) | Fold change (case/control) | P-value | FDR | VIP |
---|---|---|---|---|---|---|---|---|
1,5-anhydroglucitol | – | – | – | – | 1.2 | – | 0.037 | – |
1-hexadecanol | – | – | – | – | 1 | – | 0.441 | – |
1-monopalmitin | – | – | – | – | 1.1 | – | 0.047 | – |
1-monostearin | – | – | – | – | 1.2 | – | 0.047 | – |
238267 trisaccharide | – | – | – | – | 1.6 | – | 0.177 | – |
2-aminoadipic acid | – | – | – | – | 1.1 | – | 0.77 | – |
2-hydroxybutanoic acid | – | – | – | – | 1.1 | – | 0.178 | – |
2-hydroxyglutaric acid | – | – | – | – | 1.7 | – | 0.003 | – |
2-ketoisocaproic acid | – | – | – | – | 1.2 | – | 0.285 | – |
2-monoolein | – | – | – | – | 1.1 | – | 0.361 | – |
2-monopalmitin | – | – | – | – | 1.2 | – | 0.129 | – |
2-phenylpropanol | – | – | – | – | 1.3 | – | 0.052 | – |
3-aminoisobutyric acid | – | – | – | – | 1.1 | – | 0.275 | – |
3-hydroxybutanoic acid | – | – | – | – | 1.1 | – | 0.523 | – |
3-phenyllactic acid | – | – | – | – | 1.4 | – | 0.152 | – |
3-phosphoglycerate | – | – | – | – | 2.2 | – | 0.001 | – |
4-hydroxybutyric acid | – | – | – | – | 1.3 | – | 0.004 | – |
4-hydroxyproline | – | – | – | – | 1.7 | – | 0.47 | – |
5,6-dihydrouracil | – | V | – | – | 2.4 | – | 0.00000024 | – |
5-aminovaleric acid | – | – | – | – | 1.6 | – | 0.313 | – |
5'-deoxy-5'-methylthioadenosine | – | V | – | – | 1.8 | – | 0.000065 | – |
5-hydroxynorvaline | – | – | – | – | 1.1 | – | 0.457 | – |
5-methoxytryptamine | – | – | – | – | 1.1 | – | 0.725 | – |
acetophenone | – | – | – | – | 1.3 | – | 0.178 | – |
adenine | – | – | – | – | 1.5 | – | 0.00037 | – |
adenosine | – | – | – | – | 1.3 | – | 0.057 | – |
adenosine-5-phosphate | – | – | – | – | 2.5 | – | 0.001 | – |
adipic acid | – | – | – | – | 1.3 | – | 0.163 | – |
alanine | – | – | – | – | 1.2 | – | 0.013 | – |
allantoic acid | – | – | – | – | 1.6 | – | 0.005 | – |
allo-inositol | – | – | – | – | 1.1 | – | 0.19 | – |
alpha-ketoglutaric acid | – | – | – | – | 1 | – | 0.845 | – |
alpha-tocopherol | – | V | – | – | 2.2 | – | 0.00000041 | – |
aminomalonic acid | – | – | – | – | 1.3 | – | 0.03 | – |
arabinose | – | – | – | – | 1.3 | – | 0.00045 | – |
arabitol | – | – | – | – | 1.4 | – | 0.003 | – |
arachidic acid | – | – | – | – | 3.5 | – | 0.136 | – |
arachidonic acid | – | – | – | – | 1.5 | – | 0.007 | – |
ascorbic acid | – | – | – | – | 1.6 | – | 0.739 | – |
asparagine | – | – | – | – | 1.2 | – | 0.18 | – |
aspartic acid | – | – | – | – | 1 | – | 0.644 | – |
azelaic acid | – | – | – | – | 1.2 | – | 0.178 | – |
behenic acid | – | – | – | – | 1 | – | 0.644 | – |
benzoic acid | – | – | – | – | 1.1 | – | 0.039 | – |
beta-alanine | – | – | – | – | 1.1 | – | 0.375 | – |
biuret | – | – | – | – | 1.6 | – | 0.002 | – |
capric acid | – | – | – | – | 1.2 | – | 0.004 | – |
caprylic acid | – | – | – | – | 1.3 | – | 0.002 | – |
cellobiotol | – | – | – | – | 1.6 | – | 0.443 | – |
cholesterol | – | – | – | – | 1 | – | 0.655 | – |
citric acid | – | – | – | – | 1.6 | – | 0.007 | – |
citrulline | – | – | – | – | 1.5 | – | 0.004 | – |
conduritol-beta-epoxide | – | – | – | – | 1 | – | 0.694 | – |
creatinine | – | – | – | – | 1.4 | – | 0.011 | – |
cysteine | – | – | – | – | 1.6 | – | 0.003 | – |
cysteine-glycine | – | – | – | – | 1.2 | – | 0.097 | – |
cystine | – | – | – | – | 1.3 | – | 0.178 | – |
cytidine-5-diphosphate | – | – | – | – | 1 | – | 0.926 | – |
cytidine-5-monophosphate | – | – | – | – | 1.8 | – | 0.001 | – |
digalacturonic acid | – | – | – | – | 1.3 | – | 0.47 | – |
dihydroabietic acid | – | – | – | – | 1.1 | – | 0.873 | – |
dihydrosphingosine | – | – | – | – | 1.5 | – | 0.00054 | – |
dodecane | – | – | – | – | 1.1 | – | 0.275 | – |
dodecanol | – | – | – | – | 1.3 | – | 0.002 | – |
eicosenoic acid | – | – | – | – | 1 | – | 0.635 | – |
erythritol | – | – | – | – | 1 | – | 0.81 | – |
erythronic acid | – | – | – | – | 1.2 | – | 0.048 | – |
erythronic acid lactone | – | – | – | – | 1.6 | – | 0.006 | – |
ethanol phosphate N | – | – | – | – | 1.1 | – | 0.837 | – |
ethanolamine | – | – | – | – | 1.2 | – | 0.17 | – |
FAD | – | – | – | – | 1.2 | – | 0.092 | – |
fructose | – | – | – | – | 1.2 | – | 0.562 | – |
fructose-1-phosphate | – | – | – | – | 1 | – | 0.696 | – |
fructose-6-phosphate | – | – | – | – | 1.3 | – | 0.193 | – |
fucose | – | – | – | – | 1.5 | – | 0.008 | – |
fumaric acid | – | – | – | – | 1 | – | 0.845 | – |
galactose-6-phosphate | – | – | – | – | 1.2 | – | 0.152 | – |
gamma-tocopherol | – | V | – | – | 1.2 | – | 0.01 | – |
gluconic acid | – | – | – | – | 2.1 | – | 0.00038 | – |
glucose | – | V | – | – | 2 | – | 0.00037 | – |
glucose-6-phosphate | – | – | – | – | 1.2 | – | 0.19 | – |
glucuronic acid | – | – | – | – | 1 | – | 0.846 | – |
glutamic acid | – | – | – | – | 1.4 | – | 0.002 | – |
glutamine | – | – | – | – | 1.1 | – | 0.647 | – |
glyceric acid | – | – | – | – | 1.4 | – | 0.017 | – |
glycerol | – | – | – | – | 1.2 | – | 0.019 | – |
glycerol-3-galactoside | – | – | – | – | 2.2 | – | 0.003 | – |
glycerol-alpha-phosphate | – | – | – | – | 1.2 | – | 0.231 | – |
glycerol-beta-phosphate | – | – | – | – | 1.2 | – | 0.201 | – |
glycine | – | – | – | – | 1.1 | – | 0.202 | – |
glycocyamine | – | – | – | – | 1.2 | – | 0.392 | – |
glycolic acid | – | – | – | – | 1 | – | 0.507 | – |
guanine | – | – | – | – | 1.1 | – | 0.249 | – |
guanosine | – | – | – | – | 1 | – | 0.845 | – |
histidine | – | – | – | – | 1.6 | – | 0.012 | – |
homoserine | – | – | – | – | 1.1 | – | 0.392 | – |
hydroxycarbamate | – | – | – | – | 1.1 | – | 0.19 | – |
hydroxylamine | – | – | – | – | 1.3 | – | 0.013 | – |
hypoxanthine | – | – | – | – | 1.1 | – | 0.386 | – |
indole-3-acetate | – | – | – | – | 1.1 | – | 0.392 | – |
inosine | – | – | – | – | 1.1 | – | 0.394 | – |
inosine 5'-monophosphate | – | – | – | – | 3.5 | – | 0.00085 | – |
inositol-4-monophosphate | – | – | – | – | 1.4 | – | 0.02 | – |
isoheptadecanoic acid (methyl-C16:0) | – | – | – | – | 1.1 | – | 0.178 | – |
isoleucine | – | – | – | – | 1.2 | – | 0.124 | – |
isothreonic acid | – | – | – | – | 1.3 | – | 0.008 | – |
kynurenine | – | – | – | – | 1.3 | – | 0.116 | – |
lauric acid | – | – | – | – | 1.2 | – | 0.035 | – |
leucine | – | – | – | – | 1.1 | – | 0.377 | – |
levoglucosan | – | – | – | – | 1 | – | 0.846 | – |
linoleic acid | – | – | – | – | 1.1 | – | 0.416 | – |
lysine | – | – | – | – | 2.7 | – | 0.000065 | – |
maleimide | – | – | – | – | 1 | – | 0.837 | – |
malic acid | – | – | – | – | 1.3 | – | 0.045 | – |
maltose | – | – | – | – | 1.6 | – | 0.47 | – |
maltotriose | – | – | – | – | 1.7 | – | 0.615 | – |
mannitol | – | – | – | – | 1.4 | – | 0.017 | – |
mannose | – | – | – | – | 1.1 | – | 0.542 | – |
methanolphosphate | – | – | – | – | 1.1 | – | 0.204 | – |
methionine | – | – | – | – | 1.1 | – | 0.405 | – |
methionine sulfoxide | – | – | – | – | 1.8 | – | 0.045 | – |
myo-inositol | – | – | – | – | 1 | – | 0.837 | – |
myristic acid | – | – | – | – | 1.1 | – | 0.084 | – |
N-acetyl-D-mannosamine | – | – | – | – | 1.5 | – | 0.00033 | – |
nicotinamide | – | – | – | – | 1.4 | – | 0.006 | – |
N-methylalanine | – | – | – | – | 1.1 | – | 0.826 | – |
octadecane-1,12-diol N | – | – | – | – | 1.1 | – | 0.129 | – |
octadecanol | – | – | – | – | 2.1 | – | 0.38 | – |
oleic acid | – | – | – | – | 1.1 | – | 0.663 | – |
ornithine | – | – | – | – | 1.9 | – | 0.0000096 | – |
orotic acid | – | – | – | – | 1.2 | – | 0.389 | – |
oxalic acid | – | – | – | – | 1.1 | – | 0.429 | – |
oxoproline | – | – | – | – | 1.1 | – | 0.094 | – |
palmitic acid | – | – | – | – | 1.2 | – | 0.027 | – |
pantothenic acid | – | – | – | – | 1.1 | – | 0.725 | – |
pelargonic acid | – | – | – | – | 1.2 | – | 0.033 | – |
pentadecanoic acid (C15:0) | – | – | – | – | 1.2 | – | 0.015 | – |
phenylalanine | – | – | – | – | 1.1 | – | 0.328 | – |
phenylethylamine | – | – | – | – | 1.3 | – | 0.51 | – |
phenylpyruvic acid | – | – | – | – | 1.1 | – | 0.202 | – |
phosphoethanolamine | – | – | – | – | 1.4 | – | 0.289 | – |
phosphoric acid | – | – | – | – | 1.2 | – | 0.18 | – |
pipecolic acid | – | – | – | – | 1.1 | – | 0.123 | – |
proline | – | – | – | – | 1.4 | – | 0.008 | – |
pseudo uridine | – | – | – | – | 1 | – | 0.846 | – |
putrescine | – | – | – | – | 1.1 | – | 0.73 | – |
pyrophosphate | – | – | – | – | 1 | – | 0.67 | – |
quinic acid | – | – | – | – | 1.3 | – | 0.02 | – |
ribitol | – | – | – | – | 1.8 | – | 0.00000066 | – |
ribonic acid | – | – | – | – | 1 | – | 0.38 | – |
ribose | – | – | – | – | 1 | – | 0.696 | – |
salicylaldehyde | – | – | – | – | 1.1 | – | 0.372 | – |
serine | – | – | – | – | 1.1 | – | 0.758 | – |
shikimic acid | – | – | – | – | 1.1 | – | 0.845 | – |
sorbitol | – | – | – | – | 1.4 | – | 0.837 | – |
spermidine | – | – | – | – | 1.4 | – | 0.002 | – |
stearic acid | – | – | – | – | 1.2 | – | 0.047 | – |
stigmasterol | – | – | – | – | 1 | – | 0.954 | – |
succinic acid | – | – | – | – | 1.3 | – | 0.726 | – |
sucrose | – | – | – | – | 1.3 | – | 0.313 | – |
tagatose | – | – | – | – | 1.3 | – | 0.022 | – |
taurine | – | – | – | – | 1.3 | – | 0.095 | – |
threitol | – | – | – | – | 1.1 | – | 0.18 | – |
threonic acid | – | – | – | – | 1.2 | – | 0.648 | – |
threonine | – | – | – | – | 1.1 | – | 0.291 | – |
thymine | – | – | – | – | 1.2 | – | 0.306 | – |
trans-4-hydroxyproline | – | – | – | – | 1.3 | – | 0.008 | – |
trehalose | – | – | – | – | 1.7 | – | 0.523 | – |
triethanolamine | – | – | – | – | 1.4 | – | 0.002 | – |
tryptophan | – | – | – | – | 1.2 | – | 0.837 | – |
tyrosine | – | – | – | – | 1.1 | – | 0.429 | – |
UDP GlcNAc | – | – | – | – | 2.3 | – | 0.000022 | – |
UDP-glucuronic acid | – | – | – | – | 1.2 | – | 0.007 | – |
uracil | – | – | – | – | 1.4 | – | 0.037 | – |
urea | – | – | – | – | 1 | – | 0.615 | – |
uric acid | – | – | – | – | 1.4 | – | 0.019 | – |
uridine | – | – | – | – | 1.4 | – | 0.002 | – |
uridine-5'-monophosphate | – | – | – | – | 1.1 | – | 0.555 | – |
valine | – | – | – | – | 1 | – | 0.846 | – |
xanthine | – | V | – | – | 2.7 | – | 0.00038 | – |
xanthosine | – | – | – | – | 1.1 | – | 0.826 | – |
xylitol | – | – | – | – | 1.4 | – | 0.00094 | – |
Metabolite | Comparative study | Author-emphasized biomarkers | Cutoff value | AUROC (95%CI) | Sensitivity (%) | Specificity (%) | Accuracy (%) |
---|---|---|---|---|---|---|---|
1,5-anhydroglucitol | – | – | – | – | – | – | – |
1-hexadecanol | – | – | – | – | – | – | – |
1-monopalmitin | – | – | – | – | – | – | – |
1-monostearin | – | – | – | – | – | – | – |
238267 trisaccharide | – | – | – | – | – | – | – |
2-aminoadipic acid | – | – | – | – | – | – | – |
2-hydroxybutanoic acid | – | – | – | – | – | – | – |
2-hydroxyglutaric acid | – | – | – | – | – | – | – |
2-ketoisocaproic acid | – | – | – | – | – | – | – |
2-monoolein | – | – | – | – | – | – | – |
2-monopalmitin | – | – | – | – | – | – | – |
2-phenylpropanol | – | – | – | – | – | – | – |
3-aminoisobutyric acid | – | – | – | – | – | – | – |
3-hydroxybutanoic acid | – | – | – | – | – | – | – |
3-phenyllactic acid | – | – | – | – | – | – | – |
3-phosphoglycerate | – | – | – | – | – | – | – |
4-hydroxybutyric acid | – | – | – | – | – | – | – |
4-hydroxyproline | – | – | – | – | – | – | – |
5,6-dihydrouracil | – | V | – | – | – | – | – |
5-aminovaleric acid | – | – | – | – | – | – | – |
5'-deoxy-5'-methylthioadenosine | – | V | – | – | – | – | – |
5-hydroxynorvaline | – | – | – | – | – | – | – |
5-methoxytryptamine | – | – | – | – | – | – | – |
acetophenone | – | – | – | – | – | – | – |
adenine | – | – | – | – | – | – | – |
adenosine | – | – | – | – | – | – | – |
adenosine-5-phosphate | – | – | – | – | – | – | – |
adipic acid | – | – | – | – | – | – | – |
alanine | – | – | – | – | – | – | – |
allantoic acid | – | – | – | – | – | – | – |
allo-inositol | – | – | – | – | – | – | – |
alpha-ketoglutaric acid | – | – | – | – | – | – | – |
alpha-tocopherol | – | V | – | – | – | – | – |
aminomalonic acid | – | – | – | – | – | – | – |
arabinose | – | – | – | – | – | – | – |
arabitol | – | – | – | – | – | – | – |
arachidic acid | – | – | – | – | – | – | – |
arachidonic acid | – | – | – | – | – | – | – |
ascorbic acid | – | – | – | – | – | – | – |
asparagine | – | – | – | – | – | – | – |
aspartic acid | – | – | – | – | – | – | – |
azelaic acid | – | – | – | – | – | – | – |
behenic acid | – | – | – | – | – | – | – |
benzoic acid | – | – | – | – | – | – | – |
beta-alanine | – | – | – | – | – | – | – |
biuret | – | – | – | – | – | – | – |
capric acid | – | – | – | – | – | – | – |
caprylic acid | – | – | – | – | – | – | – |
cellobiotol | – | – | – | – | – | – | – |
cholesterol | – | – | – | – | – | – | – |
citric acid | – | – | – | – | – | – | – |
citrulline | – | – | – | – | – | – | – |
conduritol-beta-epoxide | – | – | – | – | – | – | – |
creatinine | – | – | – | – | – | – | – |
cysteine | – | – | – | – | – | – | – |
cysteine-glycine | – | – | – | – | – | – | – |
cystine | – | – | – | – | – | – | – |
cytidine-5-diphosphate | – | – | – | – | – | – | – |
cytidine-5-monophosphate | – | – | – | – | – | – | – |
digalacturonic acid | – | – | – | – | – | – | – |
dihydroabietic acid | – | – | – | – | – | – | – |
dihydrosphingosine | – | – | – | – | – | – | – |
dodecane | – | – | – | – | – | – | – |
dodecanol | – | – | – | – | – | – | – |
eicosenoic acid | – | – | – | – | – | – | – |
erythritol | – | – | – | – | – | – | – |
erythronic acid | – | – | – | – | – | – | – |
erythronic acid lactone | – | – | – | – | – | – | – |
ethanol phosphate N | – | – | – | – | – | – | – |
ethanolamine | – | – | – | – | – | – | – |
FAD | – | – | – | – | – | – | – |
fructose | – | – | – | – | – | – | – |
fructose-1-phosphate | – | – | – | – | – | – | – |
fructose-6-phosphate | – | – | – | – | – | – | – |
fucose | – | – | – | – | – | – | – |
fumaric acid | – | – | – | – | – | – | – |
galactose-6-phosphate | – | – | – | – | – | – | – |
gamma-tocopherol | – | V | – | – | – | – | – |
gluconic acid | – | – | – | – | – | – | – |
glucose | – | V | – | – | – | – | – |
glucose-6-phosphate | – | – | – | – | – | – | – |
glucuronic acid | – | – | – | – | – | – | – |
glutamic acid | – | – | – | – | – | – | – |
glutamine | – | – | – | – | – | – | – |
glyceric acid | – | – | – | – | – | – | – |
glycerol | – | – | – | – | – | – | – |
glycerol-3-galactoside | – | – | – | – | – | – | – |
glycerol-alpha-phosphate | – | – | – | – | – | – | – |
glycerol-beta-phosphate | – | – | – | – | – | – | – |
glycine | – | – | – | – | – | – | – |
glycocyamine | – | – | – | – | – | – | – |
glycolic acid | – | – | – | – | – | – | – |
guanine | – | – | – | – | – | – | – |
guanosine | – | – | – | – | – | – | – |
histidine | – | – | – | – | – | – | – |
homoserine | – | – | – | – | – | – | – |
hydroxycarbamate | – | – | – | – | – | – | – |
hydroxylamine | – | – | – | – | – | – | – |
hypoxanthine | – | – | – | – | – | – | – |
indole-3-acetate | – | – | – | – | – | – | – |
inosine | – | – | – | – | – | – | – |
inosine 5'-monophosphate | – | – | – | – | – | – | – |
inositol-4-monophosphate | – | – | – | – | – | – | – |
isoheptadecanoic acid (methyl-C16:0) | – | – | – | – | – | – | – |
isoleucine | – | – | – | – | – | – | – |
isothreonic acid | – | – | – | – | – | – | – |
kynurenine | – | – | – | – | – | – | – |
lauric acid | – | – | – | – | – | – | – |
leucine | – | – | – | – | – | – | – |
levoglucosan | – | – | – | – | – | – | – |
linoleic acid | – | – | – | – | – | – | – |
lysine | – | – | – | – | – | – | – |
maleimide | – | – | – | – | – | – | – |
malic acid | – | – | – | – | – | – | – |
maltose | – | – | – | – | – | – | – |
maltotriose | – | – | – | – | – | – | – |
mannitol | – | – | – | – | – | – | – |
mannose | – | – | – | – | – | – | – |
methanolphosphate | – | – | – | – | – | – | – |
methionine | – | – | – | – | – | – | – |
methionine sulfoxide | – | – | – | – | – | – | – |
myo-inositol | – | – | – | – | – | – | – |
myristic acid | – | – | – | – | – | – | – |
N-acetyl-D-mannosamine | – | – | – | – | – | – | – |
nicotinamide | – | – | – | – | – | – | – |
N-methylalanine | – | – | – | – | – | – | – |
octadecane-1,12-diol N | – | – | – | – | – | – | – |
octadecanol | – | – | – | – | – | – | – |
oleic acid | – | – | – | – | – | – | – |
ornithine | – | – | – | – | – | – | – |
orotic acid | – | – | – | – | – | – | – |
oxalic acid | – | – | – | – | – | – | – |
oxoproline | – | – | – | – | – | – | – |
palmitic acid | – | – | – | – | – | – | – |
pantothenic acid | – | – | – | – | – | – | – |
pelargonic acid | – | – | – | – | – | – | – |
pentadecanoic acid (C15:0) | – | – | – | – | – | – | – |
phenylalanine | – | – | – | – | – | – | – |
phenylethylamine | – | – | – | – | – | – | – |
phenylpyruvic acid | – | – | – | – | – | – | – |
phosphoethanolamine | – | – | – | – | – | – | – |
phosphoric acid | – | – | – | – | – | – | – |
pipecolic acid | – | – | – | – | – | – | – |
proline | – | – | – | – | – | – | – |
pseudo uridine | – | – | – | – | – | – | – |
putrescine | – | – | – | – | – | – | – |
pyrophosphate | – | – | – | – | – | – | – |
quinic acid | – | – | – | – | – | – | – |
ribitol | – | – | – | – | – | – | – |
ribonic acid | – | – | – | – | – | – | – |
ribose | – | – | – | – | – | – | – |
salicylaldehyde | – | – | – | – | – | – | – |
serine | – | – | – | – | – | – | – |
shikimic acid | – | – | – | – | – | – | – |
sorbitol | – | – | – | – | – | – | – |
spermidine | – | – | – | – | – | – | – |
stearic acid | – | – | – | – | – | – | – |
stigmasterol | – | – | – | – | – | – | – |
succinic acid | – | – | – | – | – | – | – |
sucrose | – | – | – | – | – | – | – |
tagatose | – | – | – | – | – | – | – |
taurine | – | – | – | – | – | – | – |
threitol | – | – | – | – | – | – | – |
threonic acid | – | – | – | – | – | – | – |
threonine | – | – | – | – | – | – | – |
thymine | – | – | – | – | – | – | – |
trans-4-hydroxyproline | – | – | – | – | – | – | – |
trehalose | – | – | – | – | – | – | – |
triethanolamine | – | – | – | – | – | – | – |
tryptophan | – | – | – | – | – | – | – |
tyrosine | – | – | – | – | – | – | – |
UDP GlcNAc | – | – | – | – | – | – | – |
UDP-glucuronic acid | – | – | – | – | – | – | – |
uracil | – | – | – | – | – | – | – |
urea | – | – | – | – | – | – | – |
uric acid | – | – | – | – | – | – | – |
uridine | – | – | – | – | – | – | – |
uridine-5'-monophosphate | – | – | – | – | – | – | – |
valine | – | – | – | – | – | – | – |
xanthine | – | V | – | – | – | – | – |
xanthosine | – | – | – | – | – | – | – |
xylitol | – | – | – | – | – | – | – |