20/11/2025
Motor Neurone Disease (MND), also known as amyotrophic lateral sclerosis (ALS), is a degenerative neurological condition first clearly described by French neurologist Jean-Martin Charcot in the 1860s. The disease attacks motor neurons nerve cells controlling voluntary muscles leading to progressive muscle weakness, paralysis, and eventually death. There are several types of MND, but ALS is the most common.
History
The earliest recorded cases of what would later be classified as MND date back to the early 19th century, but Charcot’s detailed observations and publication in 1869 laid the groundwork for understanding the disease. Over time, different forms (such as primary lateral sclerosis or progressive bulbar palsy) have been identified under the MND umbrella.
Causes
The precise cause of most cases is still unknown. About 5–10% of cases are inherited (familial), often related to genetic mutations like SOD1, C9orf72, or others. Most cases are sporadic, meaning they occur without family history or clear cause. Some possible factors under study include environmental toxins, viral infections, and oxidative stress, but no single cause is established for the majority of sufferers. There are currently no proven ways to prevent MND, but ongoing research seeks to identify risk factors.
Progression and Life Expectancy
The average age of onset is mid-50s to early 60s. After diagnosis, the typical life expectancy is 2–5 years, though about 10% of people may live ten years or more. Survival depends on the speed of progression, type of MND, and individual circumstances. Disease progression is usually relentless and leads to increasing paralysis, and death is most commonly due to respiratory muscle failure.
Symptoms and Course
• Early: Muscle twitches, cramps, loss of strength, slurred speech, tripping and dropping objects.
• Middle: Spreading weakness, trouble swallowing (dysphagia), loss of mobility, muscle stiffness, increased dependency for personal care.
• Late: Severe paralysis, inability to speak, difficulty breathing, total dependence for all daily activities and care.
Treatment
There is currently no cure for MND. Treatments focus on managing symptoms, maintaining quality of life, and prolonging survival.
• Medications: Riluzole (may slightly prolong life), Edaravone (slows progression in some cases), and symptom-relief medicines for drooling, spasticity, or pain.
• Supportive therapies: Physiotherapy, speech therapy, occupational therapy, respiratory support (like non-invasive ventilation), gastrostomy feeding for swallowing problems, and palliative care.
• Multidisciplinary care from neurologists, allied health, and palliative teams is essential for improving comfort and function as the disease progresses.
Reference:
“Motor neurone disease is an incurable neurodegenerative disorder with insidious onset, progressive muscle paralysis, loss of motor, speech, swallowing and respiratory functions, and eventual death, usually within 2–5 years of symptom onset.” (MND Australia, 2019).