By influencing S-adenosylmethionine (SAM) levels, it also plays a role in epigenetic regulation and longevity-related gene expression, linking energy metabolism with cellular lifespan
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References National Center for Biotechnology Information
Cyanocobalamin is indicated for Vitamin B12 deficiencies due to malabsorption which may be associated with the following conditions: Addisonian (pernicious) anemia Gastrointestinal pathology, dysfunction, or surgery, including gluten enteropathy or sprue, small bowel bacterial overgrowth, total or partial gastrectomy Fish tapeworm infestation Malignancy of pancreas or bowel Folic acid deficiency It may be possible to treat the underlying disease by surgical correction of anatomic lesions leading to small bowel bacterial overgrowth, expulsion of fish tapeworm, discontinuation of drugs leading to vitamin malabsorption (see Drug/Laboratory Test Interactions), use of a gluten-free diet in nontropical sprue, or administration of antibiotics in tropical sprue
If your levels of cysteine and methionine are low, the B12 has nothing to do once you intake it
Scientific Background Synthetic peptides and peptide-like research compounds play a central role in contemporary biomedical science
