“A 2‐h infusion of adenosine increased KYNA levels in a dose‐dependent manner, with 10 mm of adenosine causing a twofold elevation within 1 h. This effect was reversible and was effectively blocked by coinfusion of the specific A1 adenosine receptor antagonist 8‐cyclopentyltheophylline (100 µm).”
“This mechanism may result in a synergism between the neurobiological effects of adenosine and KYNA.”