This central action provides a strong basis for its role in neuroprotection against biochemical insults and stress
This is helpful because it bypasses your digestive system, where B12 absorption often breaks down due to gut health issues or low stomach acid
At the same time, the number of senescent cells, associated with damage or stress that secretes proinflammatory factors (SASP or senescence-associated secretory phenotype), increases with age in many key tissues, including the kidneys, lungs, blood vessels, and brain SAM may not get the same level of media attention as NAD+, but that doesnt stop it from being less useful: S-adenosylmethionine, or SAM, has been used for several years in the treatment of hepatic conditions and osteoarthritis and more recently in the treatment of clinical depression
The injection bypasses oral absorption, which is impaired in patients with low intrinsic factor, gastric atrophy, or malabsorptive disorders