Observations on Certain Enzyme Activities of Normal Human Red Cells Treated with Sulfhydryl Compounds

Abstract
Some enzyme activities of normal human red cells treated with AET and cysteine have been investigated. Treated red cells showed low acetylcholinesterase activity and low O2 uptake in the presence of methylene blue; on the contrary, glucose-6-phosphate-dehydrogenase activity and lactic acid production in the presence of glucose were found to be normal. Results are briefly discussed.