@rsingler said in an earlier post (I have mucked up something when I replied), sorry)
Assuming the OP was serious, she is merely misinformed.
An English professor might confirm a relationship between NITrogen, NITrox, NITrous oxide and NITric oxide, but a medical professional would be hard pressed, lol.
1) There is no nitric oxide in sildenafil.
2) There is no nitric oxide in Nitrous oxide.
3) There is no nitric oxide in EANx.
4) Non-enzymatic production of nitric oxide in the body requires a niTRATE, which is also absent from EANx. It is a reductive process, not oxidative, and therefore elevated O2 partial pressure would not be expected to help in nitric oxide formation via this pathway.
5) Nitric oxide is produced in multiple sites in the body, inducing vasodilation, causing other known effects. Sildenadil affects the enzymatic process involved in nitric oxide degradation.
6) Suggestion is a powerful thing.
I'm afraid this will be my only post on the subject. Have fun, all!
Diving Doc[/QUOTE]
In support of this while trawling the net to try and understand how increased oxygen could increase the level of NO, I came across the abstract of an article from 2012, which if I am reading correctly ( I do not have a background in chemistry or physiology) which says that Tibetans living at high altitude, with low 02 levels have high levels of NO. While visitors from low altitudes suffered a drop in NO in the first few hours and increased over the baseline as time went by ( 5 days).
edited to clean up copy and paste errors