A serum B12 level is the starting point
Erythrocytes also contain non-enzymatic antioxidants such as glutathione, ascorbic acid (Vit C), and -tocopherol (Vit E)
Supernatants were transferred to a fresh 1.5 ml microcentrifuge tube
J Neurosci Res 79:509521 Aureli T, Miccheli A, Di Cocco ME, Ghirardi O, Giuliani A, Ramacci MT, Conti F (1994) Effect of acetyl-l-carnitine on recovery of brain phosphorus metabolites and lactic acid level during reperfusion after cerebral ischemia in the ratstudy by 13P- and 1H-NMR spectroscopy
Factors that clinicians typically evaluate include baseline hormone status, medical history, current medications, contraindications such as active malignancies or uncontrolled diabetes, and individual health goals