About Me

I am sishan. I like dogs very much, but my mom does not like dogs so I never had a chance to own one. That's my biggest disappointment. And I hope my blog is useful for you, it can help you learn something. Thank you!

Klinefelter syndrome

Klinefelter syndrome

Friday, April 23, 2010

Interesting facts about Klinefelter syndrome


This disorder is named by Dr. Harry Klinefelter, who first reported its symptoms in 1942. Klinefelter syndrome does not decrease the longevity of males. Male with Klinefelter syndrom are sterile. Before puberty, there are no obvious symptoms, symptoms become clear until puberty. Half of patients with breast development was gynecomastia. Gynecomastia is a condition of overdevelopment of a male's breasts.




Facts about Klinefelter syndrome

Klinefelter syndrome usually is not inherited but occurs during fetal development, so there is no means of preventing the disease. However, one risk factor for this condition is the mother giving birth at an older age; therefore, genetic counseling and testing is recommended.

Wednesday, April 21, 2010

Instresting facts about Marfan syndrome.

A French pediatrician named Antoine Marfan first wrote about it after examining a 5-year-old girl who had extremely long arms and legs in 1896. And in the U.S., February is Marfan's Syndrome Awareness Month. And there is a crazy fact about Marfan syndrome: Pulling a tooth can kill a person with Marfan's Syndrome!!!

Do you know these people are said to have had Marfan's Syndrome?




Lincoln is speculated to have had Marfan syndrome.
Hyman who helped the U.S. Olympic Volleyball Team win a silver medal in 1984. No one(not ever her) knew she had it, until after she collapsed and died during a game.

Monday, April 19, 2010

Interesting facts about Turner syndrome

Do you know what is the average heigh of a Turner sydrome female? The average height of an untreated woman with Turner syndrome is 4 feet 8 inches.A female fetus (normally XX) can survive with only one X chromosome, but a male fetus (normally XY) could not survive with only one Y chromosome. That's why Turner syndrome only affect female.

Saturday, April 17, 2010

Interesting facts about Turner syndrome

Turner syndrome is named for Dr. Henry Turner, he published a report about Turner syndrome in 1938. Turner Syndrome affects 60,000 females in the United States. This disorder is seen in 1 of every 2000 to 2500 babies born, with about 800 new cases diagnosed each year.