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Vitamins

Vitamins. Hossein Piri Department of Biochemistry and Genetics, School of Medicine, Qazvin University of Medical Sciences, Qazvin, Iran September 2014. ویتامین ها. محلول در لیپید و محلول در آب پروویتامین نقش ها: کوآنزیمی و هورمونی علل کمبود: اختلال در جذب نقص متابولیسم مصرف دارو.

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Vitamins

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  1. Vitamins Hossein PiriDepartment of Biochemistry and Genetics, School of Medicine, Qazvin University of Medical Sciences, Qazvin, Iran September 2014

  2. ویتامین ها • محلول در لیپید و محلول در آب • پروویتامین • نقش ها: • کوآنزیمی و هورمونی • علل کمبود: • اختلال در جذب • نقص متابولیسم • مصرف دارو

  3. Water-soluble Vitamins Fat-soluble Vitamins Vitamins

  4. Water-soluble Vitamins • Vitamin B1 (Thiamin) • Vitamin B2 (Riboflavin) • Vitamin B3 (Niacin) • Vitamin B5 (Panthotenic acid) • Vitamin B6 (Pyridoxine) • Vitamin H (Biotin) • Vitamin B9 (Folic acid) • Vitamin B12 (Cobalamin) • Vitamin C (Ascorbic acid)

  5. Water-Soluble Vitamins Water-soluble vitamins are: • Soluble in aqueous solutions. • Used as cofactors by many enzymes. • Not stored in the body.

  6. Water-soluble Vitamins

  7. Vitamine B1 (Thiamin)

  8. TPP is necessary as a cofactor for: Pyruvatedehydrogenase a-ketoglutaratedehydrogenase Transketolase catalyzed reactions of PPP. A deficiency in thiamin intake leads to a severely reduced capacity of cells to generate energy as a result of its role in these reactions.

  9. Clinical Significances of Thiamin Deficiency • Beriberi, is the result of a diet that is carbohydrate rich and thiamin deficient. • Wernicke-Korsakoff syndrome. This disease is most commonly found in chronic alcoholics due to their poor dietetic lifestyles.

  10. Vitamine B2

  11. Vitamine B2

  12. Vitamine B2

  13. Vitamine B3

  14. Vitamine B3

  15. Vitamin B5 kkkk

  16. Vitamine B5

  17. Vitamine B6

  18. Vitamine B6 • Transamination • Deaminetion • Decarboxylation(α-amino acids) • Glycogenolysis(glycogen phosphorylase) • NAD+(Trp pathway)

  19. Vitamine H (Biotin)

  20. Folic acid

  21. Folic acid

  22. Vitamine B12

  23. Vitamine C

  24. Vitamine C • Collagen biocynthesis • Tyr catabolism • Epinephrine biosynthesis • Bile salts biosynthesis • Biosynthesis of stroid hormones • Iron absorption • As an antioxidant

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