Vitamins Flashcards Preview

1st Aid Memorize > Vitamins > Flashcards

Flashcards in Vitamins Deck (43):
1

Fat soluble

A, D, E, K

2

B1

thiamine (TTP)

3

B2

Riboflavin (FAD, FMN)

4

B3

Niacin (NAD+)

5

B5

Pantothenic acid (CoA)

6

B6

Pyridoxine (PLP)

7

B7

Biotin

8

B9

Folate

9

B12

Cobalamin

10

C

Ascorbic acid

11

A

Retinol

12

Function of Vit A

-Antioxidant
-Retinal pigment
-Prevents squamous metaplasia
-Normal differentiation of epithelial cells into specialized tissue

13

Function of Vit B1

Cofactor for dehydrogenase enzyme reactions like:
-Pyruvate dehydrogenase
-Alpha-ketogluterate dehydrogenase
-Transketolase
-Branched chain ketoacid dehydrogenase

14

Function of Vit B2

Component of FMN and FAD which are used as cofactors in redox reactions (ex. succinate dehydrogenase)

15

Function of Vit B3

-Constituent of NAD+ and NADP+ (used in redox reactions
-Lowers VLDL and raises HDL

16

Function of Vit B5

Essential component of coA and fatty acid synthase

17

Function of Vit B6

-Converted to pyridoxal phosphate (used in transamination, decarboxylation reactions, glycogen phosphorylase
-Synthesis of cystathionine, heme, niacin, histamine and neurotransmitters

18

Function of Vit B7

Cofactor for carboxylation enzymes (add 1-carbon groups) like:
-Pyruvate carboxylase
-Acetyl-CoA carboxylase
-Propionyl-CoA carboxylase

19

Function of Vit B9

-Converted to THF (coenzyme for 1-carbon transfer/methylation reactions)
-Important for synthesis of nitrogenous bases in DNA and RNA

20

Function of Vit B12

Cofactor for homocysteine methyltransferase and methylmalonyl-CoA mutase

21

Function of Vit C

-Antioxidant
-Facilitates iron absorption by reducing to Fe2+ state
-Necessary for hydroxylation of proline and lysine in collagen synthesis
-Necessary for dopamine-beta hydroxylase (converts DA to NE)

22

Function of Vit D

-Increase intestinal absorption of calcium and phosphate
-Increase bone mineralizaiton

23

Function of Vit E

-Antioxidant (protects RBCs and membranes from free-radical damage)

24

Function of Vit K

Cofactor for gamma-carboxylation of glutamic acid residues on various proteins required for blood clotting (2, 7, 9, 10, C, and S)

25

Function of zinc

-Essential for activity of >100 enzymes
-Help form zinc fingers (TF motif)

26

VITAMIN DEFICIENCY
-Night blindness
-Dry, scaly skin
-Corneal degeneration
-Immune suppression

A

27

VITAMIN DEFICIENCY
-Wernicke-Korsakoff syndrome (confusion, opthalmoplegia, ataxia)
-Beriberi

B1

28

VITAMIN DEFICIENCY
-Cheilosis
-Cornea vascularization

B2

29

VITAMIN DEFICIENCY
-RARE
-Dermatitis
-Alopecia
-Enteritis

B7

30

VITAMIN DEFICIENCY
-Glossitis
-Diarrhea
-Deentia
-Dermatitis

B3

31

VITAMIN DEFICIENCY
-Convulsions
-Hyperirritability
Peripheral neuropathy
-Sideroblastic anemias

B6

32

VITAMIN DEFICIENCY
-Dermatitis
-Enteritis
-Alopecia
-Adrenal insufficiency

B5

33

VITAMIN DEFICIENCY
-Macrocytic, megaloblastic anemia
-GLossitis
-NO NEURO SYMPTOMS
-Increase homocysteine (normal methionine)

B9

34

VITAMIN DEFICIENCY
-Macrocytic, megaloblastic anemia
-Paresthesias
-Increased serum homocysteine and methylmalonic acid

B12

35

VITAMIN DEFICIENCY
-Rickets
-Osteomalacia

D

36

VITAMIN DEFICIENCY
-Delayed wound healing
-Hypogonadism
-Decreased adult hair
-Dysgeusia
-Anosmia
-Acrodermatitis enteropathica

Zinc

37

VITAMIN DEFICIENCY
-Hemolytic anemia
-Acanthocytosis
-Muscle weakness
-Posterior column and spinocerebellar tract demyelination

E

38

VITAMIN DEFICIENCY
-Swollen gums
-Bruising
-Hemarthrosis
-Anemia
-Poor wound healing
-"Corkscrew hair"
-Weakened immune response

C

39

VITAMIN DEFICIENCY
-Neonatal hemorrhage (increase PT and PTT with normal bleeding time)

K

40

VITAMIN EXCESS
-Facial flushing
-Hyperglycemia
-Hyperuricemia

B3

41

VITAMIN EXCESS
-Teratogenic (cleft palate, cardiac abnormalities)
-Arthralgias
-Scaly skin
-Pseudotumor cerebri
-Hepatic toxicity

A

42

VITAMIN EXCESS
-Hypercalcemia
-Hypercalciuria
-Loss of appetite
-Stupor
-Seen in sarcoidosis!

D

43

VITAMIN EXCESS
-N/V
-Diarrhea
-Fatigue
-Calcium oxalate kidney stones
-Increased risk of iron toxicity

C