Altered B12 handling and reduced clearance in kidney disease, and both cellular release and reduced clearance in liver disease, can raise B12, so supportive renal or hepatic findings make those causes plausible
Senior Oliver Yancey (20.20), junior Sam Nonemaker (20.32), senior Aedan Collins (20.62), and senior Jack Edelson (20.44) finished in 1:21.58, the fifth fastest time in Gettysburg history
More structurally-focused peptides like Dihexa may take 2-4 weeks for full effects as synaptic changes develop
Beyond central nervous system trauma it has also been examined in models of peripheral nerve injury
If supplement-related
How GHK-Cu Compares to Retinoids, Vitamin C, and Other Anti-Aging Ingredients The 1998 head-to-head trial by Abdulghani measured procollagen synthesis side by side, and the copper-binding peptide outperformed both vitamin C and tretinoin