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Fat soluble vitamins
Terms in this set (30)
What are the 3 forms of Vit A?
Vit A is transported by what and to where ?
What retrieves Vit A from the liver and where is it transported?
Retinol binding protein
to special protein receptors on cells
Where do retinyl esters come from and what are they converted to?
-converted in INTESTINES
What is the function of retinOL
-normal fetal development in women
Where does Beta-carotene come from and what is it converted to?
-converted in INTESTINES and LIVER
What is the function of retinAL
Participates in vision
-helps convert light E into nerve impulses in retina
What is the function of retinOIC acid?
-promotes differentiation of epithelial cells and goblet cells
What two light-sensitive pigments is retinal found in?
One of the first detectable signs of Vit A deficiency is ____ ________
Vitamin A food sources
What two forms is Vitamin D found in?
Ergocalciferol (vit D2)- plants
Cholecalciferol (vit D3)- skin
What roles do Vit D play a part of in the body?
reduction of inflammation
Vitamin D deficiency is called _______
Rickets (infants and children)
What is considered a low serum level of Vit D?
LESS than 20 ng/ml
What are the benefits of supplementation of Vit D?
Decrease incidence of metabolic syndrome
Decrease incidence of fractures in older adults
Decrease risk for colorectal and breast cancer
Vit D food sources
What are the 4 forms of Vit E?
+ 2 racemic forms of each
-d and l
What is Vit E deficiency usually associated with?
diseases of fat malabsorption
Prolonged deficiency can cause neuromuscular dysfunction involving ______ and ________
the spinal cord
Is Vit E the most or least toxic of fat soluble vit?
Daily supplementation can lead to risk of _______ cancer in men
Vit E food sources
What two sources supply the body with Vit K
1/2 dietary sources
1/2 GI tract bacteria
Like other fat soluble vitamins Vit K is transported by _______ to _______ for storage
Deficiency from ______ is rare but can occur from ______
GI tract bacteria (secondary)
Secondary deficiency occurs in patients....
with fat malabsorption disorders
prolonged antibiotic therapy
S/S of Vit K deficiency
melena (black tarry stools)
Vit K toxicity usually comes from supplements or overdosage of synthetic Vit K in patients taking ________ or _________
Vit K food sources
Green leafy vegetables
THIS SET IS OFTEN IN FOLDERS WITH...
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