Huntingtons Disease

Huntington’s Disease is a brain disorder affecting movement, cognition, and emotions (Schoenstadt). It is a genetic disorder generally affecting people in their middle 30s and 40s (Sheth). Worldwide, Huntington’s disease (affects between 3-7 per 100,000 people of European ancestry (Schoenstadt). In the United States alone, 1 in every 30,000 people has Huntington’s disease (Genetic Learning Center). Huntington’s Disease is a multi-faceted disease, with a complex inheritance pattern and a wide range of symptoms. There is also much research being done in the field of Huntington’s disease, because as of 2012, this disease is untreatable. THESIS.

Huntington's disease is an inherited neurodegenerative disorder. It is passed on to children from one or both parents (though two parents with Huntington's is extraordinarily rare) in an autosomal dominant manner. This is different from autosomal recessive disorder, which requires two altered genes (one from each parent) to inherit the disorder.

The genetic disorder is caused by a mutation in the DNA segment CAG found in chromosome 4 which results nerve cell death. Phenotypic characteristics include gradual motor dysfunction, psychological issues that correlate to degeneration of metal health, and cognitive degeneration. Studies on transgenic mice have allowed a better understanding of the proteins that relate to Huntington’s

Huntington's Disease is a genetic autosomal disorder which effects the brain. It affects about 1 in 20,000 individuals. The symptoms of the disease do not start to occur until after or around 40 years of age. With the onset of the disease the patient starts to gradually deteriorate intellectually, this deterioration also causes involuntary movements. Scientists have only recently found the section of the gene which causes Huntington's disease, and this is allowed them to devise pre-symptomatic tests. However, a cure for the disease is yet to be found.

Huntington’s disease destroys the organs that carry the functions of the central nervous system. Kalat (2013) states, “Huntington disease (also known as Huntington disease or Huntington’s Chorea) is a severe neurological disorder that strikes about 1 person in 10,000 in the United States” (A.B. Young, 1995, p. 258).Individual’s develop the symptoms in their middle age, but even if it is a rare disorders juveniles as well as children before the age of ten can develop the disease. Huntington’s disease is hereditary disease that is passed on from a parent. Huntington’s disease is of the lack of the chromosome 4, if one of the parents carries the gene, they can pass that gene to their

Huntington's Disease (HD) is an autosomal dominant, progressive, neurodegenerative disorder (Walker, 2007 and Harmon, 2007). The gene that causes the disease is located on the fourth chromosome and causes an abnormal number of repeats in the patient's genetic code (Harmon, 2007). Huntington's Disease can have devastating effects on patients' quality of life. The first symptoms of HD generally start between the ages of 30 and 45 and patients are typically asymptomatic prior to this time (Terrenoire, 1992 and Walker, 2007). However, the disease progresses with subtle changes in motor control, personality, and cognition. Patients eventually develop distinct

Huntington's Disease is a devastating and progressive neurological disorder that resu lts primarily from degeneration of nerve cells deep in the center of the brain. The condition was first described by George Huntington, a physician in New York, in 1872. Even then, the physician recognized the all-encompassing factors of the disorder when describing it as, "coming on gradually but surely, increasing by degrees, and often occupying years in its development until the hapless sufferer is but a quivering wreck of his former self".

Huntington’s disease is an autosomal, dominant inherited disorder caused by a polyglutamine expansion at the amino-terminal on the huntingtin protein. It causes a progressive degeneration of spiny nerve cells in the striatum and cortex of the brain, impairing a person’s functional and cognitive abilities. Polyglutamine repeats of 36 are found to be non-threating but sequences containing an additional two or three repeats are associated with Huntington’s disease.

4. “Huntington Disease - Genetics Home Reference.” U.S. National Library of Medicine, National Institutes of Health, ghr.nlm.nih.gov/condition/huntington-disease.

In 2008, the FDA approved tetrabenazine, which is used to help treat chorea. This was the first drug approved to treat symptoms of HD ("Huntington's Disease: Hope Through Research," n.d.). Additionally, the use of antipsychotic drugs are used to help lessen the extremity of involuntary movements and help moderate the individuals temperament ("Huntington's Disease: Hope Through Research," n.d.). In contrast, the use of antipsychotics are not used to help treat dystonia and may actually worsen these symptoms by causing stiffness in movement ("Huntington's Disease: Hope Through Research," n.d.). Many individuals with HD also suffer from depression and may be prescribed fluoxetine, sertraline, or nortriptyline ("Huntington's Disease: Hope Through Research," n.d.). Mood swings and anxiety are controlled with the use of tranquilizers and/or lithium ("Huntington's Disease: Hope Through Research,"

The movement disorders associated with Huntington's disease can include both involuntary movements and impairments in voluntary movements:

Huntington's disease is an autosomal dominant disorder, which is found on the # 4 chromosome. George Huntington discovered it in 1872. It mainly has an effect on the nervous system. There are around 210,000 bases between D4S180 and D4S127. The disease itself is found in 2% of people in their childhood, and in 5% of the people they were older then 60. (Miller p 16) In the majority of the affected people the disease is detected between the ages of 35-45. In males the disease begins around the time of their childhood. However, in females it begins later in life. This severe symptom has a tendency for the condition to worsen as it is passed on from generation to generation. Huntington’s disease is paternally

“An Interview with Dr. Nancy Wexler: Discovering the Huntington Disease Gene.” HD Insights, Huntington Study Group, 2012, chrome-extension://ecnphlgnajanjnkcmbpancdjoidceilk/content/web/viewer.html?source=extension_pdfhandler&file=http%3A%2F%2Fhdsa.org%2Fwp-content%2Fuploads%2F2015%2F02%2Fhd-insights-volume-3.pdf. Accessed 15 Dec. 2017.

Huntington’s Disease is a disorder in the brain that has an impact on the way people talk, think, and move. The disease kills off cells in the part of the brain that controls movements, emotions, and cognitive ability, which is called the basal ganglia. The brain cells of people with Huntington’s Disease build up lots of protein that eventually turn toxic, and cause the cells to die over time. People with this disease can lose up to 25% of their brain cells before they die!

Huntington’s disease (HD) is neurodegenerative disease related to some manifestations developing through the path of the disease as movement disorders in the form of incoordination and chorea in first stages, then dystonia, rigidity, and bradykinesia which become more aggressive .finally, patients die 15 to 25 years from the beginning of the first manifestations(1-4) Brains from patients with HD show neuronal degeneration ,mainly in the striatum.The mechanism of neuronal degeneration is uncertain but mitochondrial dysfunction may be one of the important contributors to neuronal dysfunction and finally neurodegeneration in HD.(5-7)