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16 Cards in this Set

  • Front
  • Back
Vit C
Ascorbic Acid
Non-B, water soluble
sources: citrus, tomatoes, berries, green vegetables
Fx: hydroxylation coenzyme; CT synth & maintenance, FR scavenger & reducing agt
Deficiency causes scurvy (bleeding gums, loose teeth, etc.)
Folic Acid
B complex: hematopoietic
sources: green veg, whole grains
Cofactor in 1 C transfers; prevents neural tube defects
Deficiency causes megaloblastic anemia b/c decr in nucleic acid pd'n and therefore cell division
B12
Cobalmin
B complex, Hematopoietic
Sources: animal pdts
Cofactor for met synth and odd # FA breakdown
Deficiency causes incr in odd # FAs, neuro abnormalities and 2º folate defic.
Deficiency can be caused by pernicious anema (destruction of gastric IF cells)
B6
B complex, energy releasing
src: whole grains, fish
fx: cofactor PLP for heme synth, glycogen phosphorylase and AA metab.
Defic: abnormal AA metab, 2ºpellagra, microcytic anemia 2º niacin deficiency
B1
Thiamine
B complex, energy releasing
src: whole grain, liver, pork, yeast, legumes
fx: cofactor TPP for PDH, alphaKDH, transketolase, alpha ketoacid DH.
Defic: decr ATP & incr lactate/pyruvate (Beri Beri, Wernick's and Korsakoff's Syndromes)
B3
Niacin
b complex energy releasing
src: whole grain, meat, fish, trp
fx: cofactor (NAD+/NADP+) for oxidases & DHs; repairs UV damage; decr hyperlipidemia
Defic: pellagra
B2
Riboflavin
b complex energy releasing
src: milk, eggs, liver
fx: cofactor (FAD, FMN) for oxidases & DHs
Defic sx: ariboflavinosis, dermatitis, cheilosis
Biotin
b complex, energy releasing
src: most foods & endogenous bacteria
fx: coenzyme for many carboxylases (carries CO2)
Deficiency: dermatitis
deficiency caused by eating many egg whites and/or decr intest. bacteria
Pantothenic Acid
b complex, energy releasing
src: eggs, liver, yeast, etc.
fx: part of CoA; txfr acyl grps; part of FA synthase
defic: burning foot syndrome
Vit A (retinoids)
fat soluble
src: dairy, liver, green & orange vegs
Fx: 11 cis retinal (rhodopsin) converts to trans retinal + opsin for visual impulsess.
Beta-carotene is antioxidant
retinol n reproduction and fertility
retinoic acid for transcription, embryo development
defic: xeropthalmia, impaired mucosa, night blindness
toxicity: hepatomegaly, b breaks, mucosa defects, birth defects
txts: used in psoriasis, acne, etc.
Vit D
fat soluble
src: fish or synthesized in skin w/ UV
forms: D3, D2, 1, 25 DHcholecalciferol
fx: maintain serum Ca by regulating absorption, bone remodeling and kidney uptake
Defic: osteomalacia/rickets, hypocalcemia & hypophosphatemia
diseased liver, kidney can cause defic.
Vit K
fat soluble
src: Green vegs, egg yolk, liver, cereal, endog bacteria
fx: coenzyme gamma carbox of glu residues in clot factors II, VII, IX, X, prothrombin.
defic: clotting/bleeding disorders
toxicity: hemolytic anemia, jaundice
Vit E
tocopherols
fat soluble
src: veg oils, nuts, green vegs
fx: antioxidant, HD protectant
defic: hemolytic anemia, m weakness/ataxia, periph. neuropathy
Fe
mineral
src: liver, green veg, cereal
fx: component of P450, ETC, catalase
requires C for absorp
defic: anemia, epithelial abnormalities
toxicity: incr absorp cause liver, pancreas, heart disease...
Zn
mineral
src:
fx: cofactor for HS, O2- dismutase, carbonic anhydrase, peptidase, zn fingers.
defic: growth retardation, hypogonadism, decr wound healing, skin lesions
Cu
mineral
src: liver
fx: cofactor for oxidases, tyrosinases, dopamine beta hydroxylase, O2- dismutase
defic: caused by Kinky Hair Synd; weak blood vessels, decr pigment, neuro defects, decr ATP, anemia
Toxicity: caused by Wilson's Disease; gold rings in eye.