Download Alexis Palacios 2nd period 12/7/2011 Biology Genetic Disorders

Alexis Palacios
2nd period
12/7/2011
Biology
Genetic Disorders Essay
The disorder I found interesting Hypothyroidism. Hypothyroidism is a common condition which
is the thyroid glands produces too little thyroid hormones. About 1 in every 5,000 babies is born with
Congenital Hypothyroidism. Thyroid gland fails to grow normally and cannot produce enough thyroid
hormone. There is no known cause for most cases of Congenital Hypothyroid 10% to 20% the condition
is caused by an inherited defect the alters then production of thyroid hormone. Most common inherited
form of Hypothyroidism is defect TPO (Thyroid Peroxidase) gene on Chromosomes 2. Thee gene plays an
important role in thyroid hormone production.
A disease caused by antibodies that attacks the thyroid gland. Surgery or radiation is used to
treat thyroid cancer. Rare and random genetic events in which a mutation is acquired during early
development.
Babies with inherited form hypothyroidism affect growth and cognitive development. It may
cause mental retardation, delayed puberty, stunted growth or ataxia (inability to coordinate muscle
movements)
Babies are screened for Hypothyroidism 24 hours after birth or tiny sample of blood taken from
the baby’s heel is tested for low thyroid hormone levels or (TSH) levels.
Hypothyroidism is treated with hormone replacement therapy. People with Hypothyroidism
must take a synthetic form of thyroid hormone every day to reduce their symptoms.