What is ALS? Signs, treatment options and prognosis as Grey's Anatomy star Eric Dane passes away

Actor Eric Dane, widely recognised for portraying Dr Mark Sloan in the hit medical drama Grey's Anatomy, has passed away at the age of 53 after battling with amyotrophic lateral sclerosis (ALS). In April 2025, the icon publicly shared his diagnosis, bringing renewed attention to an illness that profoundly remains incurable and devastating for patients and families alike.

His family mentioned in a statement: "With heavy hearts, we share that Eric Dane passed on Thursday afternoon following a courageous battle with ALS," citing that he spent his final days surrounded by close ones.

What Is ALS?

ALS, also commonly known as Lou Gehrig’s disease, is a progressive and fatal neurodegenerative condition that destructs motor neurons. These specialised nerve cells manage voluntary muscle movements like walking, speaking, chewing and breathing. When motor neurons get destroyed and die, the brain can no longer send signals to muscles, resulting in weakness, loss of movement and gradually causes paralysis.

There are two groups of motor neurons are:

• Upper motor neurons, which stretch from the brain to the spinal cord
  
• Lower motor neurons, which stretch from the spinal cord to muscles across the body
  

ALS destroys both groups. As the neurons fail, muscles eventually weaken and waste away.

Early Signs and Symptoms

ALS frequently begins subtly. It may start in the hands, feet, arms or legs before spreading to other areas of the body. Common early symptoms are:

• Muscle spasms and cramping
  
• Weakness in an arm or leg
  
• Difficulty in walking or doing usual everyday activities
  
• Stumbling and falling
  
• Weakness in the legs, feet or ankles
  
• Hand weakness or clumsiness
  
• Slurred speech or difficulty in swallowing
  
• Weakness connected with muscle cramps and twitching in the arms, shoulders and tongue
  
• Untimely crying, laughing or yawning
  
• Thinking or behavioural shifts
  
  

As the disease advances, it affects muscles needed to move, speak, eat and breathe.

Interestingly, ALS typically does not impact bladder control or the senses like taste, smell, touch and hearing. Pain is not common in the early stages and not typically a defining feature later.

What Causes ALS?

The exact reason remains to be uncertain. Almost 5–10% of cases are inherited, called familial ALS. These cases are connected to certain genetic mutations and a family history of the disease. The majority are sporadic, which means they happen without a clear inherited cause.

Experts believe ALS likely outcomes from a complex interaction between genetic susceptibility and environmental elements. Research into possible triggers remains worldwide.

Treatment Options

There is currently no cure for ALS and no treatment can reverse motor neuron damage. Management concentrates on slowing disease progression, relieving symptoms and enhancing quality of life.

Available treatment approaches are:

• Medications that may modestly delay progression
  
• Physiotherapy to maintain mobility
  
• Speech therapy for communication difficulties
  
• Nutritional aid
  
• Respiratory support as breathing muscles weaken
  

A multidisciplinary care technique has been shown to enhance comfort and survival.

Prognosis

ALS is regarded as fatal. The average survival time is between three and five years after symptoms start. However, some people live ten years or longer. Disease progression differs significantly from person to person.

FAQs:

Q1. What is ALS?
ALS is a progressive neurological disease that destructs motor neurons in the brain and spinal cord. It results in gradual loss of muscle control.

Q2. What are the early signs of ALS?
Early symptoms often include muscle twitching, weakness in limbs, and slurred speech. These signs may appear mild at first and worsen over time.