Figure 6: Effects of Short-Term and Long-Term L-Phe on Systemic and Tissue Phenylalanine, Tyrosine, Dopamine, and Adrenaline/Noradrenaline

Effects of short-term (100 mg·kg−1 L-phe, oral gavage, 4 h, n = 6) and long-term administration (2.5% L-phe in drinking water for 60 days, n = 6) in SHR and WKY on levels of different catecholamines: (A) L-phe/L-tyr ratio, (B) dopamine, and (C) adrenaline/noradrenaline in plasma and tissues. The datasets shown represent the mean ± SEM (n = 6) where *p < 0.05 and **p < 0.01. Abbreviations as in Figure 1.