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Trace element

Trace element. ** Iron :. 45 mg Kg body weight . Enter information of hemoglobin . Storage mainly in the liver ,spleen ,& bone marrow . Excess iron storage called hemosidrosis . Absorbed in acidic media of the stomach. factors increased absorption of iron :.

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Trace element

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  1. Trace element ** Iron :

  2. 45 mg \ Kg body weight . Enter information of hemoglobin . Storage mainly in the liver ,spleen ,& bone marrow . Excess iron storage called hemosidrosis . Absorbed in acidic media of the stomach

  3. factors increased absorption of iron : • 1- body need : during growth period [ pregnancy ,lactation ,childhood ] • 2-acidic media : vit c aid in absorption of iron • 3- calcium • *factors decrease iron absorption : • 1- substance as phosphate ,tea ,coffee • 2- reduce gastric acid secretion • 3- infection • 4 –GIT disease as malabsorption

  4. physiological function of iron : • oxygen transport • cellular oxidation to produce energy . • growth need • ** iron deficiency anemia may be : • nutritional anemia ,inadequate supply of iron • hemorrhagic anemia ,excessive iron blood loss. • Post gastrectomy anemia • Malabsorption anemia • Chronic disease anemia [ arthritis ] • *source of iron in food : liver ,egg ,vegetables ,cereals ,flour ,bread .

  5. ** Iodine • -participate in synthesis of thyroxin hormone • - 20% on iodine in thyroid gland • -absorbed in small intestine in form of iodide ,go to blood stream ,join with protein to thyroid gland & other tissue . • * physiological function of iodine : • 1- thyroid hormone synthesis • 2- plasma thyroxin : carry iodine in plasma protein to body cell [ muscle ,skin ,skeletal tissue ] • - hypothyroidism : decrease thyroxin hormone , creationism in children ,myexdema in adult . • - goiter is an enlargement of thyroid gland with decrease function . • \\ food source of iodine is sea food .

  6. ** Zink : • -stored in pancreas , liver ,kidney ,lung ,muscle ,bone , prostate . • * deficiency of Zink lead to : • 1- hypogonadism : decrease function of gonads • 2-taste & smell defect • 3-decrease wound healing • 4-chronic illness in aging [ reduce immune function ] • 5- malabsorption disease . • - food source : sea food ,meat ,egg .

  7. ** Copper : • iron twin • act on energy production • deficiency occur with total parentral nutrition • found in liver ,seafood ,nuts ,seeds • ** Manganese : • stored in liver ,bone ,pancreas ,pituitary • important in metabolic reaction . • deficiency of manganese in D.M • source : plant food ,cereal ,grains ,nuts ,tea ,coffee , vegetables .

  8. ** Fluoride : • found in bone & teeth . • deficiency of this substance lead to dental caries . • fish & fish product & tea contain the highest concentration of fluoride . • fluoridation of public water is very important .

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