Metabonomics-Based Study of Clinical Urine Samples in Suboptimal Health with Different Syndromes

Table 1

The lookup table of concentration changes of the relevant metabolites.

Chemical shifts (ppm)	Compound name	Group A versus; group D	Group A versus; group B	Group A versus; group C
1.34, 4.14	Lactic acid	—	↑	—
2.54, 2.66	Citric acid	—	—	↓
3.06, 4.06	Creatinine	↑	↑	↑
3.26	Trimethylamine oxide	↓	↑	↓
3.26, 3.42	Taurine	—	↑	—
3.98, 7.54, 7.58, 7.62, 7.66, 7.82, 7.86	Hippuric acid	↓	↓	↓

↑ indicates relatively high levels of contents; ↓ indicates the relatively low levels of contents; — indicates that contents are similar to each other. TMAO: trimethylamine oxide.