TCB II: 4247kDa protein Essential protein in the delivery of vitamin B12 to cells and tissues The production site of TCB II is primarily hepatocytic, and secondarily endothelial, monocytic and intestinal Functions of vitamin B12: B12 acts as a cofactor for two key enzymatic reactions: Methionine Synthase (cytoplasm): Converts homocysteine methionine Requires methylcobalamin Supports DNA synthesis via the folate cycle (regenerates tetrahydrofolate) Methylmalonyl-CoA Mutase (mitochondria): Converts methylmalonyl-CoA succinyl-CoA Requires adenosylcobalamin Involved in fatty acid and amino acid metabolism Elevated vitamin B12 (hypervitaminemia B12) While vitamin B12 deficiency is commonly discussed, elevated serum B12 (hypercobalaminemia) is less common and often overlooked or misinterpreted
Glutathione is vital for protecting your cells from the daily environmental damage that contributes to the visible and internal signs of aging
For others, we generally dont recommend methylcobalamin because it hasnt been rigorously tested like cyanocobalamin and we dont have reliable absorption data
Finally, TRANSCEND-T2D-3 (NCT06297603) will compare retatrutide to placebo over 14 months, in people with inadequately controlled T2D and moderate-or-severe renal impairment on basal insulin
Bowman GL, Kaye JA, Quinn JF (2012) Dyslipidemia and blood-brain barrier integrity in Alzheimers disease
