Analyte | Matrix | N | R2 | P-value | Known |
---|---|---|---|---|---|
Targeted metabolic assays | |||||
 Ketones | Plasma | 5 | 1.00 | < 0.0001 | No |
 2-Methylcitric acida | Plasma | 42 | 0.77 | < 0.0001 | Yes |
 Arachidonic acid | Plasma | 44 | 0.72 | < 0.0001 | No |
 3-Hydroxyisovaleric acid | Plasma | 39 | 0.70 | 0.0058 | No |
 2-Methylcitric acida | Plasma | 79 | 0.67 | < 0.0001 | Yes |
 3-Hydroxyisovaleric acid | Urine | 163 | 0.67 | < 0.0001 | No |
 3-Hydroxypropionic acid | Plasma | 46 | 0.66 | < 0.0001 | Yes |
 Glutaric acid | Urine | 149 | 0.64 | < 0.0001 | No |
 Pipecolinic acid | Plasma | 68 | 0.52 | 0.0432 | No |
 Alanine/lysine ratio | Plasma | 94 | −0.68 | < 0.0001 | No |
 C4-DC carnitine | Plasma | 225 | −0.55 | < 0.0001 | No |
 C14:1 carnitine/C2 carnitine ratio | Plasma | 88 | −0.53 | 0.0011 | No |
 Alanine/(phenylalanine+tyrosine) ratio | Plasma | 94 | −0.51 | 0.0013 | No |
Untargeted DI-HRMS | |||||
 2-Methylcitric acid (3 isomers) | Plasma | 157 | 0.68 | < 0.0001 | Yes |
 Alanyl-Isoleucine (3 isomers) | Plasma | 157 | 0.65 | < 0.0001 | No |
 3-Hydroxyisovaleric acid (10 isomers) | Plasma | 157 | 0.64 | < 0.0001 | No |
 3-Methyl-2-oxovaleric acid (7 isomers) | DBS | 122 | 0.56 | < 0.0001 | No |
 Isobutyrylglycine (6 isomers) | Plasma | 157 | 0.55 | < 0.0001 | No |
 Indole-5,6-quinone | DBS | 122 | 0.53 | < 0.0001 | No |
 Propionylglycine (9 isomers) | DBS | 122 | 0.52 | < 0.0001 | Yes |
 3-Hydroxyphenylacetic acid (3 isomers) | Plasma | 157 | 0.51 | < 0.0001 | No |
 Indole-5,6-quinone | Plasma | 157 | 0.51 | < 0.0001 | No |
 Pyrocatechol sulfate | DBS | 122 | −0.65 | < 0.0001 | No |
 Threonic acid | DBS | 122 | −0.60 | < 0.0001 | No |
 Trimethylamine N-oxide | DBS | 122 | −0.59 | < 0.0001 | No |
 Stearoylcarnitine | DBS | 122 | −0.58 | < 0.0001 | No |
 Methylmalonic acid (3 isomers) | DBS | 122 | −0.57 | < 0.0001 | No |
 Ergothioneine | DBS | 122 | −0.55 | < 0.0001 | No |