Nobody downloaded yet

Huntington's Disease - Essay Example

Comments (0) Cite this document
Summary
Huntington’s disease Name: Institution: Huntington’s disease Introduction Huntington’s disease (HD) is a condition that is inherited from parents (WebMD, 2011). Currently, over 15,000 Americans live with Huntington’s disease, and at least 150,000 others are at 50 percent risk of developing this disease (WebMD, 2011)…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER92% of users find it useful
Huntingtons Disease Essay
Read TextPreview

Extract of sample
"Huntington's Disease"

Download file to see previous pages This disease can develop at any age, however, it is most common between the ages of 30 to 50. HD was previously known as Huntington’s chorea. Chorea means jerky, involuntary movements. This paper provides a description of Huntington’s disease including its causes, symptoms, and treatment. Causes HD is caused by a genetic defect on chromosome 4. This disease causes part of DNA, known as a CAG repeat, to replicate itself more than it is supposed to (Lawrence, 2009). In normal conditions, this part of DNA section is repeated 10 to 28 times. However, in HD patients, it is repeated 36 to 120 times. Since this is a hereditary disease, the number of repeats tends to get bigger down the subsequent generations. Therefore, children having a larger number of repeats tend to develop symptoms of this disease at early ages. This condition affects basal ganglia that control balance and movement in human beings (WebMD, 2011). In the region of basal ganglia, HD mainly targets neurons of the striatum, especially those in the pallidum and caudate nuclei. There are two types of Huntington’s disease: adult-onset Huntington’s disease, which is the most common, and an early-onset form, which begins in childhood or adolescent stages of development (Lawrence, 2009). How HD is inherited HD is a disease that is passed from parents to children through misspelling or mutation in the normal gene, and it is found in every part of the world. A single abnormal gene can lead to the development of this disease. Genes are made up of deoxyribonucleic acid (DNA): which is a molecule that exists as spiral ladder (HDSA, 2008). Every strand of DNA is made up of two paired chemicals known as bases. These bases include adenine (A), thymine (T), cytosine (C) and guanine (G). Bases usually pair together, and combine with other pairs to form coded messages. Genes, therefore, exist as long strands of paired bases in various combinations. A normal human being has approximately 30,000 genes, which determine a person’s traits and characteristics (HDSA, 2008). The effect of genes on determining an individual’s characteristics depends on whether it is dominant or recessive. When a gene is dominant, only a single chromosome is needed to produce its effect, and when it is recessive, pair of chromosome copies is required to produce a characteristic or trait. HD is a dominant disorder that is caused by a copy of a defective gene, which is inherited from one parent (HDSA, 2008). The defective gene that produces HD is a sequence of DNA on the chromosome 4, which is made up of several base pairs that repeat themselves many times. A normal gene is usually composed of three DNA bases, made up of the sequence CAG. In HD patients, this sequence normally repeats itself several times, and the number of repeats becomes larger in the subsequent generations. Parents have two copies of chromosomes each, but they only donate one copy to each child (HDSA, 2008). A child born of HD parents has 50-50 chance of developing this disease. Any child, who does not inherit a copy of HD gene from parents, can never develop this condition, and he or she cannot pass it to the next generations. Children who inherit HD gene may not show symptoms of this disease in early ages, but later in their lives. It has also been shown that some people develop this condition even if there is no family history of HD. It is believed that this is caused by a new genetic mutation, a process ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
  • CHICAGO
(“Huntington's Disease Essay Example | Topics and Well Written Essays - 1250 words”, n.d.)
Retrieved from https://studentshare.org/english/1442180-huntington-s-disease
(Huntington'S Disease Essay Example | Topics and Well Written Essays - 1250 Words)
https://studentshare.org/english/1442180-huntington-s-disease.
“Huntington'S Disease Essay Example | Topics and Well Written Essays - 1250 Words”, n.d. https://studentshare.org/english/1442180-huntington-s-disease.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document
CHECK THESE SAMPLES - THEY ALSO FIT YOUR TOPIC
Huntington's disease
The study throws light on Huntington’s disease (HD), a neurological, incurable disorder of the central nervous system. The genes that result to the disorder are dominantly hereditary. The disease results to progressive degeneration of nerve cells in the brain, especially in the cerebral cortex and the basal ganglia regions.
10 Pages(2500 words)Research Paper
Disease
Whenever such movements of stomach acids likes the hydrochloric acid that help in the digestion of food leaks from the stomach back to the esophagus, the mucus lining of the wall prevent them from corroding the esophagus. Additionally, such backward movement of stomach and intestinal acids are rare since the digestion system has a mechanism of enclosing both the stomach and the intestines thus preventing such occurrences.
4 Pages(1000 words)Essay
Cardiovascular Disease Essay
Other factors do have their effect too, such as hereditary factors and congenital causes. According to the World Health Organization (WHO) in 2003 an estimation of 16.7 million people die each year from cardiovascular diseases. 1And it is percepted that by 2030 24 million people will suffer and eventually die as a consequence to this disease.
10 Pages(2500 words)Essay
Chronic Obstructive Pulmonary Disease Essay
The study was conducted to be able to focus in particular to the patient's conditions in relation to the causative agents and the possible outcomes of the ailment. Another aim is to clearly present the diagnosis and possible recommendation in relation to the results of the tests that are undertaken.
20 Pages(5000 words)Essay
Alzheimer's Disease Essay
Alzheimer's disease is a progressive neurodegenerative disease, characterized by degeneration in intellect and a general growing disability to manage normal daily tasks or routines. The disease is caused by the loss, or atrophy, of neuronal cells, in conjunction with the deposition of cytotoxic amyloid plaques and neurofibrillary knots, with genetic factors thought to be important in the formation of the disease.
7 Pages(1750 words)Essay
Mad Cow Disease College Essay
The key events that formed the world meat market in the last decade include the change in trade policy regimes ushered in by the 1995 Uruguay Round Agreement in Agriculture, the macroeconomic crises in Asia and the Former Soviet Union in 1998 and the series of animal disease outbreaks in major livestock producing regions in Asia and the European Union (fapri.iastate.edu, N.D.).
7 Pages(1750 words)Essay
Mad Cow Disease Essay
There is no cure for this disease however preventive measures can be taken to eradicate it to a large extend. The scientific name for mad cow disease is Bovine Spongiform Encephalopathy (BSE). Bovine means "cow", spongiform means "sponge-like" and encephalopathy means "brain disease".
4 Pages(1000 words)Essay
Alzheimer's Disease College Essay
and found certain abnormalities within her brain, Alzheimer had studied the woman for almost 5 years. After the initial work of Alois Alzheimer, scientists from all over the world have worked on the issue and today as a result of the work that has been put in we today have information on all aspects of Alzheimer's.
6 Pages(1500 words)Essay
GENETICS Huntington's Disease MUST HAVE BIOLOGY BACKGROUND
Gene mapping, aimed at spanning the genome at regular intervals, or the fine-point charting of interstices between intervals, is proceeding at a furious pace, and a complete map of the human
7 Pages(1750 words)Essay
Essay on a disease ( OBESITY)
In America alone 31%, i.e. about 59 million American adults are obese. These numbers are on a steady rise and children have become a huge casualty of this disease. Among the many
3 Pages(750 words)Essay
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Let us find you another Essay on topic Huntington's Disease Essay for FREE!
Contact us:
+16312120006
Contact Us Now
FREE Mobile Apps:
  • About StudentShare
  • Testimonials
  • FAQ
  • Blog
  • Free Essays
  • New Essays
  • Essays
  • Miscellaneous
  • The Newest Essay Topics
  • Index samples by all dates
Join us:
Contact Us