PMID 10994696
Researchers often explore intranasal delivery in studies related to neurobiology, cognition, metabolism, peptide signaling, and systemic absorption dynamics
Once inside the mitochondrial matrix, Cu 2+ is reduced to the more reactive Cu + by ferredoxin-1 (FDX1) ( + binds to the lipoyl-lysine residues of DLAT, promoting its oligomerization and functional disruption, which impairs the pyruvate dehydrogenase complex and compromises TCA cycle activity, leading to proteotoxic stress and mitochondrial dysfunction ( Cuproptosis is further modulated by GSH and p53
This does not affect the efficacy of the ingredients and is not a sign that the product has gone bad.
This two-step process, LC-MS, can identify specific peptides with high sensitivity and specificity
Cagrilintide is engineered around that problem: it is a modified, lipidated peptide that acts as a dual amylin and calcitonin receptor agonist and is stable enough for once-weekly subcutaneous dosing