For NNMT assays remember that the compound competes at the nicotinamide substrate site, so the apparent potency depends on the nicotinamide concentration used
Hyperglycemia may directly cause oxidative stress in all retinal cells or contribute to oxygen deficits in the inner retinal layers due to the retinas high metabolic activity, making it prone to oxidative stress
Amount of Water: Let's say you decide to add 2mL of bacteriostatic water
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References: Seiwerth, S., Rucman, R., Turkovic, B., Sever, M., Klicek, R., Radic, B., & Sikiric, P
Youre reintroducing an aqueous environment, which 'wakes up' the peptide chain but also exposes it to the elements that cause it to break down