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29 Cards in this Set
- Front
- Back
The rhythm nearly proved contagious
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B1 -> Thiamine
B2 -> Riboflavin B3 -> Niacin B4 -> Pyrodoxine B5 -> Cobalamin |
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CE Thiamine
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TPP(Thiamine Pyrophosphate)
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Function of TPP:
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1- Oxidative decarboxylation of alpha keto acids.
2- Transketolase. |
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Deficiency thiamine:
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1- Beriberi.
2- Wernicke-Korsakoff. |
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CE Riboflavin
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FMN
FAD |
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FMN function
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Oxidative deamination of some amino acids.
Respiratory chain. |
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FAD function
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Carbs metabolism
Lipids metabolism Some AAs metabolism |
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Riboflavin deficiency
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1- Stomatitis,
2- Glossitis. 3- Agular stomatitis. 4- Scally dermatitis. |
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Manufacture of Niacin from tryptophan requires
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Pyrodoxine
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CE Niacin
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NAD
NADP NMN |
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Function NAD and NADP
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Hydrogen carriers
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NAD dependent enzymes:
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Lactate dehydrogenase
Pyruvate dehydrogenase |
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NADP dependent enzymes:
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Glucose-6-P dehydrogenase
Folate reductase |
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Niacin deficiency
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Pellagra:
1- Dementia. 2- Diarrhea. 3- Dermatitis. |
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CE Pyrodoxine
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PLP(pyrodoxal phosphate)
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Function PLP
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1- Deamination and Decarboxylation of some amino acid
GABA and Serotonin. 2- Heme biosynthesis. 3- Tryptophan -> Niacin. 4- Ceramide and sphingolipids. 5- Carbohydrate metabolism. |
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Deficiency pyridoxine
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1- Microcytic hypochromic anemia.
2- Convulsions. 3- Pellagra manifestations. |
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an enzyme containing selenium
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Glutathione peroxidase
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co-carboxylase
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Biotin
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Deficiency biotin
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Developmental delay and neurological disorders
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Folic acid composition
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Pteridine ring, PABA, Glutamate
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A competitive inhibitor of dihydrofolate reductase
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Methotrexate
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Antibacterial drugs depending on folate synthesis by bacteria
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Sulfonamides
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Structure of cobalamin
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Four corrin rings connected to a cobalt ion
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Cobalamin synthesized in the body is of no biological importance
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absorption only occurs in the small intestine
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CE Cobalamin
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Cobamide
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Hydrolytic products pantothenic acid:
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1- Pantoic acid + Beta alanine.
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CE pantothenic acid
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CoA
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Lipoic acid
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intermediate in oxidative decarboxylation of alpha keto acids
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