However, unintended N-glycosylation (e.g., at residue N181 in CtPL-DM) might result in the reduced catalytic activity unless mitigated via mutagenesis (e.g., N181A)
Its first usage in the treatment of melasma dates back to 1979.[] It has been reported to be efficacious as oral medication, localized intradermal microinjection[] or intravenous formulation (not available in India).[] Several mechanisms of action have been proposed for this medication, and those have been tabulated below [Table 2].[] Several authors have demonstrated the efficacy of oral TA in melasma [Table 3]
Keratin is an excellent hydrogel candidate given its multi-stimulus responsiveness to pH and glutathione and enzyme levels (Peralta Ramos et al., 2017
Their identity, strength, and quality may be uncertain
Branchfield K, Nantie L, Verheyden JM, Sui P, Wienhold MD, Sun X
Key Nutrients for Histamine Metabolism: B Vitamins: Methylfolate (active folate) and methylcobalamin (active vitamin B12) are essential for the methylation cycle that produces SAMe