Fig 3. Citrulline & arginine Whole-Body Production (WBP).

Logarithmic fitting of tracer-tracee ratio (TTR) of (A) L- Citrulline [5-¹³C; 4,4,5,5-D₄] and (B) L- Arginine [Guanidino-¹⁵N₂] in low-active (red) and high-active (blue) mice over a period of 40 mins. The fit was utilized for calculations of citrulline and arginine WBP depicted in bar graphs. Data are normalized for lean body mass (lbm) and expressed as mean (± SE). Statistics are by t-test, *** indicates p≤0.001.