192 Another trial included 83 men with at least one abnormal sperm parameter who received either 2 grams of combined L-carnitine and acetyl-L-carnitine plus 250 mg L-arginine, 100 mg glutathione, 40 mg CoQ10, 7.5 mg zinc, 234 mcg folic acid, 2 mcg vitamin B12, and 50 mcg selenium or placebo daily for six months
References & Links Erdman, J.W., Ford, N.A., Lindshield, B.L
Lower doses have not been adequately evaluated and a no adverse effect level could not be established
Through the actions of GTP cyclohydrolase 1 GTP is converted to 7,8-dihydroneopterin triphosphate
Overall, several enzyme systems are implicated in the scavenging of peroxide and other free radicals in the cell (Figure 1)
Nasal spray protocol: Dose: 200-500 mcg per application Frequency: 1 to 2 times daily Duration: 4 to 8 weeks Nasal delivery is particularly interesting for researchers focused on neurological applications, as the nasal route provides a potential pathway to bypass the blood-brain barrier through the olfactory and trigeminal nerve pathways