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These findings suggested that NMNAT2 could be involved in colorectal cancer development through a P53-mediated mechanism and that NMNAT2 expression could be enhanced through SIRT6 downregulation (although such a role for SIRT6 in NMNAT2 expression regulation remains to be confirmed) [111,112]

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Anyone cleared for vitamin B12 shots shouldnt have much to worry about, making injections one of the best ways to ensure your body has all the vitamin B12 it needs for cellular reproduction and other critical tasks

If levels remain normal, supplementation likely provides no benefit