What is alexander disease
Alexander disease is a rare, genetic, degenerative disorder of the nervous system. The disease, usually begins at 6 months of age. [ Source: http://www.chacha.com/question/what-is-alexander-disease ]
More Answers to “What is alexander disease“
- Alexander disease is a rare, genetically determined degenerative disorder of the central nervous system. It is one of a group of disorders known as the leukodystrophies, diseases that result from imperfect growth or development of the myeli…
- Alexander disease is one of a group of neurological conditions known as the leukodystrophies, disorders that are the result of abnormalities in myelin, the “white matter” that protects nerve fibers in the brain. Alexander disease is a progr…
- Alexander disease is a rare disorder of the nervous system. It is one of a group of disorders, called leukodystrophies, that involve the destruction of myelin. Myelin is the fatty covering that insulates nerve fibers and promotes the rapid …
Related Questions Answered on Y!Answers
- Does anyone know what infant ella alexander disease is?
- Q: Heard it on House, got curious and can’t seem to find it on the net!!!
- A: It’s just Alexander’s Disease. The infant part was just defining when it affected the patient. Go here:http://jcn.sagepub.com/cgi/content/abstract/18/9/625p.s. I don’t actually watch House b/c it is incredibly unrealistic, but that is what my best guess would be without hearing him say the name myself. Hope that helped.
- What is Alexander disease?
- A: Alexander Disease is a rare, genetically determined disease of the disease of the central nervous system resulting in defects in the growth or development of the myelin sheath ( the fatty insulator that covers nerves and brain). The white matter in the brain is made up of myelin. Alexander disease causes destruction of the white matter in the brain and protein deposits called Rosenthal fibers. The disease is caused by a genetic mutation. It usually affects males and begins by 6 months of age. There is no cure and no standard treatment other than supportive measures. Symptoms may include dementia, mental and physical retardation, enlarged head, enlarged brain, muscle spasicity, seizures, The prognosis is poor with most children who have the infantile form not living past the age of 6 yrs. Juvenile and adult onset forms have a more lengthy course. The National Organization for Rare Disorders is working to find out more and is a good resource. Sorry to provide such a gloomy explanation.
- Genetics Question….Huntington disease is caused by a recessive allele….?
- Q: Huntington disease is caused by a recessive allele. Linda has a father who died of Huntington disease. Alexander’s mother’s father also died of this disease. What is the probability that Alexander will develop the symptoms of Huntington disease. My answer is: 50%. I’m checking to see if I’m correct.
- A: It is 50%, you are correct!Assuming Alexander’s mother doesn’t have the disease, you can say she is Hh for Huntington. Alex’s father did have it, so he is hh. When you cross these two you get:HhHhhhhhSo there is a 50% chance of Alex having Huntington’sSide note: Huntington’s disease is caused by a repetition of the “CAG” codon in the genome. The more times this codon repeats the more severe case of Huntington’s the patient has!