Huntington’s disease causes certain nerve cells in the brain to stop working properly. It leads to mental deterioration and loss of control over major muscle movements. Typically, the symptoms of the illness begin between ages 35 and 50, although they can start as early as childhood or later in life.
Regardless of at what age it starts, Huntington’s disease worsens over time. It is an inherited (genetic) disease. Each child of a parent with Huntington’s disease has a 50% chance of inheriting the illness.
Huntington’s disease is relatively uncommon. It affects people from all ethnic groups. The disease affects males and females equally.
Huntington’s disease is a genetic, progressive brain disorder that causes the breakdown of nerve cells, leading to changes in movement, thinking, and behavior. It is inherited in an autosomal dominant pattern, meaning a child of an affected parent has a 50% chance of inheriting the gene.
🧬 What Huntington’s Disease Is
Huntington’s disease (HD) is caused by a mutation in the HTT gene, which leads to production of a toxic form of the huntingtin protein. This protein damages neurons—especially in areas controlling movement, coordination, and cognition. clevelandcli…
🧠 Key Symptoms
Symptoms usually begin between ages 30–50, but juvenile cases can occur. HD worsens over time.
- Movement symptoms — involuntary jerking (chorea), rigidity, slow movements, balance problems, difficulty swallowing. National Ins…
- Cognitive symptoms — trouble organizing, focusing, making decisions, slowed thinking. Mayo Clinic
- Psychiatric symptoms — depression, irritability, mood swings, impulsivity. Mayo Clinic
Juvenile HD may include seizures, stiffness, and school performance decline. Mayo Clinic
🧪 Diagnosis
- Genetic testing confirms the number of CAG repeats in the HTT gene.
- MRI/CT may show brain changes as the disease progresses.
- Neurological and psychiatric evaluation helps assess symptoms. Johns Hopkin…
💊 Treatment & Management
There is no cure, but treatments help manage symptoms:
- VMAT2 inhibitors (tetrabenazine, deutetrabenazine) reduce chorea.
- Antidepressants for mood symptoms.
- Antipsychotics for irritability, aggression, or psychosis.
- Therapies: physical, occupational, speech therapy.
- Nutrition support to address weight loss. clevelandcli…
Clinical trials are exploring gene-silencing therapies, stem cell approaches, and neuroprotective drugs. National Ins…
📉 Progression & Outlook
HD typically progresses over 15–20 years after symptom onset.
Common complications include pneumonia, falls, and swallowing-related issues. Mayo Clinic
Team Mandi 