low urinary excretion of cysteinylglycine , cyst ( e ) ine , taurine , n-acetylcysteine , mercaptolactate and mercaptoacetate and reduced leukocyte taurine levels constituted additional evidence of decreased intracellular availability of cysteine , i.e . glutathione .
C0001047
n-acetylcysteine
C0010654
cysteine