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B12 is necessary for digestion, protein synthesis, absorption of foods and the metabolism of fat and carbohydrates

The structure of human ME2 in its binary complex with the cofactor NAD + is representative of open form I, whereas the structure of pentary complexes such as ME2-nucleotide (NAD + , NADH or ATP)-divalent cation (Mg 2+ or Mn 2+ )-substrate (pyruvate or L-malate)-fumarate is representative of closed form II of the enzyme 10,11,43

Rather than acting like a conventional pharmaceutical drug, GHK-Cu appears to function more like a biological signaling molecule

Challa, and L.W

Additional approaches include liposomal encapsulation, which mimics cell membrane structure to enhance cellular uptake, and emulsion-based systems that improve dispersion in water-based formulations