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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.) |
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Folic Acid
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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 |
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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) |
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B6
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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 |
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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) |
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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 |
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B2
Riboflavin |
b complex energy releasing
src: milk, eggs, liver fx: cofactor (FAD, FMN) for oxidases & DHs Defic sx: ariboflavinosis, dermatitis, cheilosis |
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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 |
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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 |
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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. |
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Vit D
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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. |
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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 |
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Vit E
tocopherols |
fat soluble
src: veg oils, nuts, green vegs fx: antioxidant, HD protectant defic: hemolytic anemia, m weakness/ataxia, periph. neuropathy |
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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... |
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Zn
|
mineral
src: fx: cofactor for HS, O2- dismutase, carbonic anhydrase, peptidase, zn fingers. defic: growth retardation, hypogonadism, decr wound healing, skin lesions |
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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. |