Explain the absorption and assimilation of nonheme iron into hemoglobin in the RBC
What will be an ideal response?
Answer: Nonheme iron is usually in the trivalent (ferric) form. Once it comes into contact with the enterocytes, it is reduced to the divalent (ferrous) form by DCytB. DMT1 is responsible for transporting ferrous iron through the apical membrane. Ferroportin then takes ferrous iron from the apical membrane across the basolateral membrane. At the basolateral membrane, hephaestin converts ferrous iron back to the ferric form, which binds to transferrin in the blood and is transported to the bone marrow. It can be used in heme synthesis or stored as ferritin. Some of the iron remains in the enterocyte as ferritin.
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Which of the following are reported barriers to providing dietary recommendations by the dental team?
A) Lack of skills B) Lack of reimbursement for service C) Lack of time D) All of the above