Fig. 4
From: Metabolomics of mouth-rinsed water for assessing psychophysiological stress in office workers
Distribution of the N-acetyl-β-alanine/ADMA ratio at rest. Box plots show the median (central horizontal line) and interquartile range (box boundaries); whiskers indicate 1.5 × interquartile range (IQR). Each dot represents an individual sample (Control group, n = 16; High-stress group, n = 16). A significant decrease in the ratio was observed in the High-stress group compared to the Control group (p < 0.05, Mann–Whitney U test). ADMA, asymmetric dimethylarginine.
