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Marletta AS, Massarotti A, Orsomando G, Magni G, Rizzi M, Garavaglia S (2015) Crystal structure of human nicotinic acid phosphoribosyltransferase

But biologically, one of its most important roles is supporting energy production especially in high-demand organs like the brain

B12, also known as cobalamin, is a water-soluble vitamin that is essential for brain and nervous system function, as well as the production of red blood cells

The SURMOUNT-5 trial answered it directly, putting tirzepatide head-to-head against semaglutide over 72 weeks

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