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Kelly Lee

on 24 September 2013

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Transcript of Iodine

Alternate Names:
Atomic number 53, Cadexomer Iodine, Diatomic Iodine, I2, Iode, Iode de Cadexomer
Chemical Formula:
Structural Formula:
I - I
Active Site
The hormone, thyroxine, in the thyroid gland
How much Iodine do we need?
a lifetime = less than a teaspoon of iodine
body cannot store iodine -> consume iodine on a daily basis
150 micrograms daily
by: Kelly Lee & Kelsey Lam
Body Temperature
Iodine deficiency is known to lead to low blood temperature (below 98 degrees Fahrenheit). Hormones produced from using Iodine are essential to regulation of body temperature.
Acid-Base Balance
Iodine is one of the most common acidic elements found in food, and helps maintain the acid-base balance by adding acid.
Disease Prevention
kills fungus, bacteria
prevents goiter, breast cancer, eye & heart diseases, mental retardation, cysts, mucositis
protects thyroid gland against radioactive iodides
treat diabetic ulcers
decreases infertility

Hormonal Control
make up thyroid hormones->cellular metabolism
maintain & balance estrogen level
increases hormone receptor sensitivity (e.g. insulin receptor; neurotransmitters: serotonin, dopamine)
Other: testosterone, FSH, LH, cortisol

Functioning of Body System & Control of Blood Pressure
WBC can't guard infections w/o
glandular system includes: thyroid, breasts, pancreas, brain, stomach, skin, etc.
stabilizes heart rhythm, lowers blood pressure, thins blood

Waste Removal
-90% of iodine is excreted in urine
-it can help with kidney infections
-excess iodine should be avoided, especially when kidneys are diseased
Growth & Repair
-used for tissue growth and repair
-influences cell respiration
-affects differentiation in a fetus
How does Iodine work?
Iodine is absorbed through the thyroid gland and forms hormones thyroxine and triiodothyronine , which have 4 and 3 atoms of Iodine accordingly, using tyrosine. They are stored in thyroglobulin before being released into the bloodstream.
sea vegetables
cod, shrimp, tuna
milk, yogurt, egg
potatoes, navy beans
strawberries, cranberries
gray salt
Sources of Iodine
The Effects of Iodine Deficiency
-low levels of thyroid hormone->infertility->stop ovulating
-autoimmune disease of thyroid-> thyroid cancer
-pregnancy: mom high blood pressure/child mental retardation
-increases risk of prostate & breast cancer

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