How can a laboratory select and use a pathway probe with enough confidence that observed biology is not simply an artifact of concentration drift, stability behavior, solvent mismatch, or assay interference
Thiele, A
More research is needed to understand the relationship between homocysteine levels, vitamin B12 and cognitive function
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Then, we'll review your medical history, looking at things like your diet (especially if you're vegan or vegetarian), your age, any stomach or gut conditions, past surgeries, and even the medicines you take, like metformin or proton pump inhibitors, which can sometimes affect B12 levels