the intracellular levels of s-adenosylhomocysteine ( sah ) , an inhibitor of sam-mediated methylations , were increased by adding adenosine ( 100 microm ) , l-homocysteine thiolactone ( l-hct , 10 microm ) , and erythro-9- ( 2-hydroxy-3-nonyl ) -adenine ( ehna , 10 microm ) , an inhibitor of adenosine deaminase , to human sperm ejaculates that had been diluted with sodium phosphate buffer at ph 7.4 and 25 degrees .
C0036002
an
C0001443
adenosine