11. It is an intermediate in the synthesis of cysteine and adenosine . 12. Adenosine modulates the preB�tC output via activation of the A2A receptor bilayer13. Specifically, Adenosine is known as the sleep promoting nucleoside neuromodulator. 14. This accumulation of adenosine serves as a sleep-promoting substance. 15. The adenosine then goes to those synapses and we fall asleep. 16. Many physiologists believe that adenosine is an especially important vasodilator metabolite. 17. Inosine monophosphate is converted to adenosine monophosphate in two steps. 18. Here, a reaction between adenosine diphosphate ( ADP ). 19. For example, PDE compromised the antiepileptic activity of adenosine . 20. This enzyme produces the second messenger cyclic adenosine monophosphate ( cAMP ).
