Figure 1From: Decreased systemic bioavailability of L-arginine in patients with cystic fibrosisPlasma amino acids. Plasma concentrations of L-arginine (A), L-ornithine (B), proline (C), and glutamic acid (D) in cystic fibrosis patients (CF) before (baseline) and after 14 days of antibiotic treatment as well as controls. Results are plotted as means ± SD. Asterisk indicates significant (p < 0.05) difference to controls.Back to article page