Summary of key recommendations The clinical picture is the most important factor in
assessing the significance of test results assessing cobalamin status because there is no …

Background Supplementation with high doses of oral cobalamin is as effective as cobalamin
administered by intramuscular injection to correct plasma markers of vitamin B 12 deficiency …

The purpose of this narrative review is to highlight insights into the importance and
frequency of metabolic vitamin B12 (B12) deficiency, reasons why it is commonly missed …

Background Measurement of serum cobalamin levels is routinely used to diagnose
cobalamin deficiency. Surprisingly, approximately 15% of patients have high cobalamin …

The story of SCCD, which is severalfold times more common in the elderly than clinical
cobalamin deficiency but also differs from it in arising only infrequently from severe …

To the stalwart little band of investigators of vitamin B12—now more rationally termed
cobalamin—there is comfort in knowing that the stream of important scientific problems will …

Methods.–This retrospective study included patients with neurological symptoms and
cobalamin (B12 vitamin) deficiency confirmed by laboratory tests collected over a period of …

Neuropsychiatric syndromes occur in about 40% of Cbl-deficient patients and are
characterized by progressive and variable damage to the spinal cord, peripheral nerves and …

Abstract Vitamin B 12 (B12; also known as cobalamin) is a B vitamin that has an important
role in cellular metabolism, especially in DNA synthesis, methylation and mitochondrial …

Further muddying the waters is the fact that B12 deficiency appears to be more common
among patients who have a variety of chronic neurologic conditions such as stroke …