People can start to show the symptoms of Huntington's disease at almost any age. Most will develop problems between the ages of 30 and 50. The condition gradually gets worse for around 10-25 years, until the person dies.
Average age of onset is about 40 years old, with a range from childhood to the eighth decade [2,3]. It has been suggested that older onset patients are more likely to present with motor manifestations, and younger patients with psychiatric/behavioral manifestations [4].
The first symptoms of Huntington's disease often include: difficulty concentrating. memory lapses. depression – including low mood, a lack of interest in things, and feelings of hopelessness.
Early signs and symptoms can include irritability, depression, small involuntary movements, poor coordination, and trouble learning new information or making decisions. Many people with Huntington disease develop involuntary jerking or twitching movements known as chorea.
Symptoms typically emerge from age 30 to 50, but also can develop in children and older adults. Late-onset Huntington's, characterized by some as emerging after age 5o and others after age 60, is thought to be less severe than earlier onset Huntington's.
Lots of people at risk of Huntington's disease decide they'd rather not know until any symptoms appear. If you do want to know, ask your GP for a referral to a genetic counsellor. You'll have several appointments with the counsellor. It's only done once all the benefits and risks have been explained.
Although anyone can develop HD, it tends to run in people of European descent (having family members who came from Europe). But the main factor is whether you have a parent with HD. If you do, you have a 50% chance of also having the disease.
Huntington's disease is caused by an inherited difference in a single gene. Huntington's disease is an autosomal dominant disorder, which means that a person needs only one copy of the nontypical gene to develop the disorder.
Familial prion disease may produce a diverse range of phenotypes, even within the same pedigree. It may resemble HD with prominent personality change, psychiatric symptoms and cognitive decline, chorea, rigidity, and dysarthria. Limb and truncal ataxia and seizures may be present.
Huntington's disease (HD) is a progressive brain disorder caused by a defective gene. This disease causes changes in the central area of the brain, which affect movement, mood and thinking skills.
The most effective and accurate method of testing for HD—called the direct genetic test—counts the number of CAG repeats in the HD gene, using DNA taken from a blood sample. The presence of 36 or more repeats supports a diagnosis of HD. A test result of 26 or fewer repeats rules out HD.
In the United States, Huntington's disease occurs in about one of every 10,000 to 20,000 people. It affects males and females equally and crosses all ethnic and racial boundaries. Typically, symptoms begin between age 30 and 55.
Mood and behavioral changes
Agitation, irritability, and aggression are other possible personality changes. Some patients may experience hallucinations and delusions that can severely affect their day-to-day interactions. Living with Huntington's can induce feelings of anxiety, depression, apathy, and frustration.
Medical imaging techniques, such as computerized tomography (CT) and magnetic resonance imaging (MRI) can reveal atrophy of the caudate nuclei, which is observed in the early stages of Huntington's disease.
Huntington's disease is currently found in many different countries and ethnic groups around the world. The highest frequencies of HD are found in Europe and countries of European origin, such as the United States and Australia. The lowest documented frequencies of HD are found in Africa, China, Japan, and Finland.
Huntington's disease is caused by a faulty gene that results in parts of the brain becoming gradually damaged over time. You're usually only at risk of developing it if one of your parents has or had it. Both men and women can get it.
Myth 1: HD is a male disease. Fact: Both men and women can be born with the HD gene.
On average, individuals with Huntington's disease live for 10 to 30 years after the onset of symptoms. However, it is essential to note that this is an average estimate, and some individuals may live longer or shorter than this range.
Huntington's Disease (HD) is not fatal in itself. People with HD have a shorter life expectancy and die of other life-threatening complications related to this disease. Pneumonia and heart disease are the two leading causes of death for people with HD.
If you have Huntington disease, it is important to closely monitor you condition, and contact your healthcare provider if you notice any of the following symptoms: Increasing difficulty with motor tasks such as walking. Trouble swallowing. Mood changes, such as increasing symptoms of depression or feelings of suicide.
Currently, there are no treatments available for Huntington's disease that change the course of the disease.