Editing Arginine (section)

===Herpes-Simplex Virus (Cold sores)===
Research from 1964 into amino acid requirements of [[herpes simplex virus]] in human cells indicated that "...the lack of arginine or [[histidine]], and possibly the presence of [[lysine]], would interfere markedly with virus synthesis", but concludes that "no ready explanation is available for any of these observations".<ref>{{cite journal | vauthors = Tankersley RW |title=Amino Acid Requirements of Herpes Simplex Virus in Human Cells |journal=Journal of Bacteriology |date=March 1964 |volume=87 |issue=3 |pages=609–613 |doi=10.1128/jb.87.3.609-613.1964 |pmid=14127578 |pmc=277062 |doi-access=free }}</ref>

Further reviews conclude that "lysine's efficacy for [[herpes labialis]] may lie more in prevention than treatment." and that "the use of lysine for decreasing the severity or duration of outbreaks" is not supported, while further research is needed.<ref>{{cite journal | vauthors = Tomblin FA, Lucas KH | title = Lysine for management of herpes labialis | journal = American Journal of Health-System Pharmacy | volume = 58 | issue = 4 | pages = 298–300, 304 | date = February 2001 | pmid = 11225166 | doi = 10.1093/ajhp/58.4.298 | doi-access = free }}</ref> A 2017 study concludes that "clinicians could consider advising patients that there is a theoretical role of lysine supplementation in the prevention of herpes simplex sores but the research evidence is insufficient to back this. Patients with cardiovascular or gallbladder disease should be cautioned and warned of the theoretical risks."<ref>{{cite journal | vauthors = Mailoo VJ, Rampes S | title = Lysine for Herpes Simplex Prophylaxis: A Review of the Evidence | journal = Integrative Medicine | volume = 16 | issue = 3 | pages = 42–46 | date = June 2017 | pmid = 30881246 | pmc = 6419779 }}</ref>