NFS284H1 Lecture Notes - Lecture 19: Triiodothyronine, Iron-Deficiency Anemia, Hydrogen Peroxide
7 Apr 2018
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Document Summary
Where does iodine come from in your diet: seafood and plants grown near the sea. Is iodized salt found in processed food: no. It is a component of thyroid hormones: thyroxine (t3, triiodothyronine (t4) What do thyroid hormones do: regulate energy metabolism through regulating gene expression. What happens when one is deficient in iodine: hypothyroidism, reduced metabolic rate, fatigue, weight gain, goitre. What happens to offspring from an iodine deficient mother: creatinism, developmental delay, deafness, growth failure. What does chromium do: enhances insulin signalling and increases glucose uptake in cells. What are the forms of iron in the diet: heme iron, animal sources, myoglobin, best absorbed, non-heme iron, plant sources, poorly absorbed. What happens to non-heme iron in the stomach: ferric(3+) -> ferrous(2+, becomes more absorb-able. What do iron supplements and contain to help absorption: ascorbic acid. What is mfp and what does it do: meat fish poultry protein, enhances iron absorption.
