Tuesday, May 5, 2009

A Review

Recently in science, my class has been learning about genetic disorders. While reading my classmates blogs, (some are listed on the right) I came across a very harmful genetic disorder called Phenylketonuria. This is when a baby lacks the enzyme to convert phenylalanine into tyrosine after protein is consumed. This disorder is a recessive allele, meaning both parents need to be Phenylketonuria dominant. Ivar Asbjorn Folling discovered this genetic disorder in 1934. One in ten thousand people have this rare disease. Phenylketonuria has symptoms like musty odor to the carrier’s body and hair, loss of weight from vomiting and diarrhea, and sensitivity to light. So far, there is no treatment to this disorder. But there are some treatments to help a little bit, such as, a lifetime protein diet.
The complete description of this genetic disorder can be found at matsfan123's blog. The URL is http://metsfan123.blogspot.com/. I thought this was a very well written blog. I understood the terrible disorder and learned about what people living with it have to deal with everyday. I too want to find a cure for this disorder because the person has no say in getting it and is completely innocent. Hopefully, with further research, scientists can find a cure or treatments to stop at least some of the harsh symptoms.

Monday, May 4, 2009

The Truth About Klinefelter Syndrome

In 1959, Dr. Harry Klinefelter discovered the Klinefelter Syndrome. This disorder, the most common of the genetic disorders, have symptoms physically, emotionally, and trouble with language development. Klinefelter syndrome is found in males. The most common symptom is infertility. Physically, males with this disorder don't often make as much male hormone testosterone as other boys. Teenagers also don't grow as much facial and body hair. Emotionally, males may have trouble fitting in and expressing themselves using language. There is no complete cure for this syndrome but doctors say it is easier to treat this disorder at the earliest age. Some treatments include, educational services, physical, speech, and occupational therapy, and medical treatments including testosterone replacement.
About 40% of the males with Klinefelter syndrome survive the fetal period. It is not significantly higher than in healthy children. This syndrome is so common, 1 in 650 men acquire it. What is happening at the "MOLECULAR" level with the genes that cause the disease? With males who have Klinefelter syndrome, there is an extra X chromosome. Instead of XY, they have XXY.
This genetic disorder makes me want to help find a cure. To know that many men live with this disease in the world makes it hard to imagine. I believe if more scientists take the time to understand how the carriers with this disease feel and react to everyday lifestyle, they could eventually find a cure.

To learn more about Klinefelter syndrome go to:
http://www.nlm.nih.gov/medlineplus/klinefelterssyndrome.html
http://www.andrologyaustralia.org/pageContent.asp?pageCode=FSKLINE#FSKLINECOMMON
http://www.medicinenet.com/klinefelter_syndrome/article.htm
or
http://www.genetic.org/

Also, to learn more about genetic disorders look to to Blogs I Have Read to the right to look at other people who learned about genetic disorders.

October Sky

A week ago, in school, we watched a educational yet touching movie called October Sky. There were many connections to both science, math, and the character education traits we have been learning about for the past three years. To start out, this movie connects to rockets because Homer and his friends decided to create their own self-made rocket inspired by the Sputnik launch. Homer and his friends needed to discover what ingredients and the physical size of all the necessary tools to make the rocket work. The coal mines were a large part of this movie because Homer lived in a town in West Virginia where all boys grew up to work in the mines. This caused extreme problems around the town because of the large risks of injury, deaths, and danger to the worker's health. For instance, when Homer's friend was in the mine when an emergency happened. Sadly, Homer's friend died and Homer's father was severely injured. They boys also proved their innocence using math. They were accused of starting a forest fire because they couldn't account for all the rockets they had tested to launch, and they thought that one of their rockets caused a forest fire. The principal of their school had them arrested because he thought what they were doing, by building a rocket, was a disgrace to their town. These examples also show the character traits of all the women and men in the town. An example is cooperation. The group of boys cooperated through their differences and created a working rocket. Together, they also won the national science fair. They also showed self-control to their fellow peers. When everyone was calling them nerds, they stood for what they believed in and didn't let anyone tell them they were doing the wrong thing. Finally, they showed respect. They respected their town and decided to create their project in an open location, as well as, using all the necessities given to them properly.