Lecture 27 Protein

Lecture 27 Protein - Lecture 27 Protein Iron Absorption can...

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Lecture 27 Protein
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Iron Absorption can be enhanced 1. Adding Vitamin C to food 2. Adding acids (vinegar, wine) 3. Meat Factor
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Frank anemia Estimated that 20 - 30% of all women in the world are anemic (< 11.5 g hemoglobin/ dl blood) Respond to iron supplementation "Sports anemia" 10% of athletes are anemic Due loss of intestinal cells, red blood cells, and blood loss However: Most do not respond to increased iron Training produces hypervolemia - diluting blood Does Iron Supplementation Help Athletic Performance?
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15 5 11.5 Drop in hemoglobin Drop in transferin saturation Drop in iron stores Blood hemoglobin g/dl
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1. Malaria Prophylaxis - "Anemic" people are resistant to malaria - Iron supplementation increases the incidence of malaria 2. Caused by a Protist whose life cycles between mosquito and animals - Lives in red blood cells 3. Infection of red blood cell releases cytokines - Causes liver to produce hepcidin - Hepcidin acts as bactericide - Hepcidin inhibits release of iron from feritin Can Iron Supplementation be Harmful?
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Blood Transferin hepcidin liver cytokines Protist Inflamatory Red blood cell
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Lecture 27 Protein - Lecture 27 Protein Iron Absorption can...

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