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EzraVitamin B12 plays a crucial role in erythropoiesis by supporting the maturation of red blood cells in the bone marrow. It is involved in the synthesis of DNA, which is essential for the production of red blood cells. A deficiency in vitamin B12 can lead to impaired erythropoiesis and result in a type of anemia known as megaloblastic anemia.
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What does hemarexin do to the body?
Hemarexin is a multivitamin supplement that contains vitamin B12. B12 plays a key role in the body's production of red blood cells and in the functioning of the nervous system. Hemarexin can help prevent a deficiency of B12, which can lead to symptoms like anemia, weakness, and nerve damage.
What is the major role of absorption in the illeum?
The function of the ileum is mainly to absorb vitamin B12 and bile salts and whatever products of digestion were not absorbed by the jejunum.
What vitamins does the liver store?
The liver stores vitamins A, D, E, K, and B12. It plays a key role in regulating the levels of these vitamins in the body by storing and releasing them as needed.
A protein secreted by the stomach that is necessary for the absorption of vitamin B12?
The protein secreted by the stomach that is necessary for the absorption of vitamin B12 is called intrinsic factor. Intrinsic factor binds to vitamin B12 in the small intestine, allowing for its absorption into the bloodstream. Without intrinsic factor, vitamin B12 cannot be effectively absorbed and can lead to a deficiency.
Why oral administration of vitamin B12 not effective as a treatment of pernicious anemia?
Oral administration of vitamin B12 is not effective for pernicious anemia because the condition involves a lack of intrinsic factor, which is needed for the absorption of B12 in the intestines. Without intrinsic factor, the intestines are unable to absorb enough B12 from oral supplements to treat the deficiency. In such cases, B12 injections are typically used for effective treatment.
