Selenium Flashcards
1
Q
selenium facts
A
- varies in soil concentration
- low area=China, Denmark and New Zealand
2
Q
Se containing proteins
A
- Glutathionine Peroxidase
- Thyronine Deiodinase
- Thioredoxin Reductase
3
Q
Se functions
A
- part of antioxidant enzyme
- thyroid metabolism
- immune function
4
Q
Se deficiency
A
Keshan- cardiomyopathy w/congestive heart failure
Kashin-Beck’s disease- osteoarthropathy w/ degenerative and necrosis of joints
5
Q
Se RDA
A
55 micrograms
UL= 400 micrograms/d
6
Q
Se toxicity
A
- nausea
- vomiting
- fatigue
- diarrhea
- hair/nail brittleness
- lethal w/acute poisoning
7
Q
Se food sources
A
- brazil nuts
- shrimp
- crab
- salmon
- chicken
- pork
- noodles
- rice
8
Q
Se nutritional status
A
measured through:
- whole blood
- urine
GPx=plasma, platelets, RBC
RBC= long-term status indicator
9
Q
Se cancer prevention
A
- decrease intake= increase risk of prostate cancer
- 42% decrease in cancer
