sizzling

Hey everyone, brand new here. So I take MSM daily as it really helps with my joint pain. Really been a godsend for me. Recenty, I stumbled on this study, http://www.ncbi.nlm.nih.gov/pubmed/19336900, which says : "MSM significantly inhibited the release of nitric oxide and prostaglandin E(2) by alleviating the expression of inducible nitric oxide synthase and cyclooxygenase-2 in LPS-stimulated RAW264.7 cells." Now I know nitric oxide is critical for erections , as drugs like viagra promote nitric oxide, as well as nitric oxide being important for other systems as well, so I was very concerned when I read this. My question is: is this saying it is only lowering NO when it is released as part of inflammation or is it just lowering NO overall, regardless? If you of the male gender like myself, Im sure you can understand my significant concern about this. Any insight on this is greatly appreciated!