[1] [13] When B12 levels are borderline or clinical suspicion remains high despite normal B12, additional tests include: Holotranscobalamin (active B12) , which may be more sensitive in early or borderline deficiency Methylmalonic acid (MMA) and homocysteine levels, which become elevated in functional B12 deficiency (note that MMA is also elevated in renal impairment, and homocysteine rises in folate and B6 deficiency) Full blood count to identify macrocytic anaemia (elevated mean cell volume) Blood film examination may show hypersegmented neutrophils and megaloblastic changes Serum folate should be checked concurrently, as deficiencies often coexist Investigating the underlying cause is essential for appropriate management
It provides practical steps, key talking points, and guidance on sharing personal HCU stories to advance policies supporting medical nutrition access, newborn screening, and rare disease research
Novo Nordisk is doing just that, developing CagriSema, a medication that combines semaglutide with a novel drug known as cargrillintide
Our work involves synthesizing peptides to the highest possible standards of purity for one reason: to provide researchers with reliable tools
