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The detail below is mostly useful if you have been prescribed B12 and are storing it at home between appointments

Liu and Gu, 2022)

Those considering B12 injections for non-medical purposes should discuss the risk-benefit profile with a healthcare professional, as the potential harms may outweigh any perceived advantages in the absence of deficiency

No elevation of IGF-1 Growth hormone works partly through stimulating insulin-like growth factor 1 (IGF-1) production in the liver

Apoptosis of Esophageal Cancer Cells following Ad-TNFa gene therapy: the role of the double-stranded RNA activatedprotein kinase (PKR) and the nuclear factor kappa B (NF-kB)