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routine B12 level monitoring is generally unnecessary once replacement is established, as levels do not reliably correlate with tissue stores Important safety considerations: Older adults may have impaired renal function, though this rarely affects B12 therapy given its wide safety margin

Cobalamin (B12): daily doses over 500 microgram may help break down homocysteine to methionine

Psychological symptoms : Anxiety, depression, irritability, agitation, mood swings, and difficulty concentrating

Early controlled release of peroxisome proliferator-activated receptor / agonist GW501516 improves diabetic wound healing through redox modulation of wound microenvironment