Vita C & B

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Author:
pkellyle
ID:
82298
Filename:
Vita C & B
Updated:
2011-04-27 16:37:39
Tags:
exam
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Description:
Water soluable
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  1. Water Soluable vitamins
    • Can easily be lost when boil and storage
    • added to "fortified, enriched" foods
    • Most act as coenzymes
    • bound to proteins in foods
    • absorbed in small intestines, circulate to liver via blood.
    • NOT COMMON toxicty, except for B6 (pyridoxine); most pee out.
  2. Thiamin - B1, "Acetyl Coenzyme A"
    • Has Antithiamin factors - coffee, raw fish, berries
    • Deficiency: BeriBeri
    • Alcoholism - blocks active transport of thiamin
  3. Riboflavin - B2 "REDOX"
    • Coenzyme, BETA - Oxidation
    • Deficiency: TIRENESS, Ariboflavinosis, cracked mouth
  4. Niacin -B3 "Needed for Glycolysis & Citric acid (NAD+)"
    • Tryptophan makes B3
    • Deficiency ---- Pellegra (4 D's - death, dermatitis, diahrrea, dementia)
  5. Panthothenic Acid- B5 "COENZYME A, "
    • - Glycolysis and Citric cycle.
    • No Deficiency
  6. Pyridoxal Phosphate - B6 "COenzyme, involves in amino acid"
    • tryptophan - niacin and heme production
    • Deficiency - Mircocytic, hypochromic anemia
    • Toxicity - severe neurological effect, numbness, peripheral apathy. Should not be taken a large amt in supplement.
  7. Biotin - B7 "Carboxylation"
    • Carboxylation reaction; KREB cycle
    • Food - nuts, egg yolk
    • Deficiency - AVIDIN -RARE ---- Eating raw egg white can bind to biotin, making it unavailable to absorb.
    • Can be dangerous in infants. Neurological issues
  8. Folate - Folacin "Methylation"
    • Single Carbon Transfer
    • Hemocysteine to Methionine (need B12)
    • Deficiency --- Megaloblatic, Macrocytic anemia (immature large RBC)
    • Disease - Spina Bifida: Neura; tube defect. Spinal brain column.
    • RDA's - Adult, 400, pregos, 600
  9. Cobalamin - B12 "microflora"
    • similar to Biotin,
    • Deficiency: intrinsic factor can lead to deficiency or low intake.
    • Pernicious Anemia - Autoimmuned
    • Secondary folate deficiency (megaloblastic and macrocytic), if treated for folate defiency, B12 untreated can lead to demensia.
  10. Vita C "Antioxidant"
    • involves collagen
    • enhance absorption of Iron
    • Defiency: Scurvy
    • Smokers need to take more Vita C
  11. Choline: Carnitine
    • Acetylcholine
    • Conditionally essential for infants

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