the carnitine and acetyl-carnitine measured in the plasma of 6 normal subjects at different times of the day vary respectively from 28 to 37 mumol/l and from 1.1 to 5.2 mumol/l in agreement with plasma free fatty acid ( ffa ) variation from 230 to 779 microeq/l .
C0007258
carnitine
C0001040
acetyl-carnitine