Vit E

Question 1

Types

Answer 1

4 tocopherols- sat. side chains

4 tocotrienols- unsat. side chains

Question 2

Food sources

Answer 2

Plants, leaves and other greens, soybeans, animals -Vit E, fatty animal tissue

Question 3

Digestion

Answer 3

requires estrases, bile salts
20-50% absorption
stored in adipose tissue, liver muscles, lung, heart, adrenal gland and brain

Question 4

Functions

Answer 4

antioxidant- protects cell membrane, from ox of UFA
-prevent LDL ox
maintain nervous /immune system
protect PUFA (surrounds cell to protect membrane)

Question 5

Diseases

Answer 5

type II diabetes-improves metabolic control
cataracts- formed by protein ox in lens of eye
iron toxicity- production against iron -induced cell damage
heart disease- increases of vit E may reduced HD
- reduced ox of LDL
- more than 7 mg/d of V-E

Question 6

RDA

Answer 6

15 mg/day

UL= 1,000 mg/d

Question 7

Deficiency

Answer 7

Symptoms:
Hemolytic anemia, muscle weakness, degenerative effect, neurological problems
uncommon- except w/certain disorders
-fat malabsortion -cystic fibrosis
- cholestasis- decreased production of bile

Question 8

Toxicity

Answer 8

100x RDA= chronically no harm hemophiliac should avoid supplements

Question 9

Assessment

Answer 9

-erythrocyte malondialaldyhe test- + h2o2 to RBC
RBC hemolysis test-most convient- less than 20% deficiency.
Serum levels= not accurate