Emergency:

Helpline:

Everything You Need to Know About ALS Symptoms and Causes

By Dr. Atul Prasad in Centre For Neurosciences

Dec 09 , 2024 | 5 min read

Amyotrophic Lateral Sclerosis (ALS), commonly referred to as Lou Gehrig's disease, is a neurodegenerative condition clinically characterised by a progressive decline of all forms of motor functions brought about by the degeneration of the nerve cells in the cerebral and spinal cord. Understanding Amyotrophic Lateral Sclerosis Symptoms and Causes Critical Knowing the symptoms and causes of ALS can be instrumental for those who are affected and their families because early detection alters the management and progression of the disease.


What is ALS?

ALS stands for Amyotrophic Lateral Sclerosis, a disease that primarily targets motor neurons. It is a condition that gradually deteriorates motor neurons, which are vital for controlling voluntary muscles (the ones that you can move by choice). The loss of these neurons leads to muscle weakness and atrophy throughout the body as the neurons lose their ability to trigger muscle movement.

Each year, about two people per 100,000 globally are diagnosed with this devastating disease. Typically striking adults in their mid-50s, ALS does not discriminate, affecting individuals across all demographics.


How Amyotrophic Lateral Sclerosis (ALS) Affects the Body?

ALS progressively damages the motor neurons in the brain and spinal cord. Early in the disease, this damage manifests as mild muscle problems, but as more neurons are affected, the disease leads to increased muscle weakness and impaired movement. Eventually, this progression results in the inability to control arms, legs, and body. Patients require permanent ventilatory support to assist with breathing as the respiratory muscles weaken.


Symptoms of Amyotrophic Lateral Sclerosis (ALS)

Recognising the symptoms of ALS can lead to earlier diagnosis and intervention, which can significantly affect disease management.

Early Symptoms of Amyotrophic Lateral Sclerosis (ALS)

At the onset of ALS, one might start noticing muscle cramps in the arm, leg, shoulder, or tongue. Muscle cramps are often the first sign of ALS and can be easily overlooked. However, as the disease progresses, signs become more pronounced. Muscle weakness in the legs, hands, or arms is often one of the first noticeable symptoms of ALS. Fatigue is another early symptom, where simple tasks become surprisingly exhausting. This weakness gradually spreads, severely affecting voluntary movements.

Advanced Symptoms of Amyotrophic Lateral Sclerosis (ALS)

As the ALS progresses, more severe symptoms may arise. Speech can become slurred as the muscles in the tongue and mouth weaken; the inability to swallow is due to weakened muscles in the throat, a condition known as dysphagia. Choking is also a possibility. Muscle stiffness (spasticity) and exaggerated reflexes become more typical, including an extremely sensitive gag reflex. Ultimately, respiratory problems arise, some of the more severe complications in ALS, as debilitated respiratory muscles prove impossible for the patient to breathe easily and place them at a higher risk for pneumonia.

When to Seek Medical Attention

If you or someone you know is experiencing persistent or worsening symptoms such as muscle weakness, speech changes, difficulty swallowing, or breathing problems, it’s crucial to consult a healthcare provider.

Early medical evaluation is essential for managing ALS effectively. Additionally, sudden or unexplained changes in mood, severe muscle cramps that disrupt daily activities, or increased falls due to weakened limbs are significant symptoms that require immediate attention. Ignoring these signs can delay diagnosis and treatment, potentially impacting the effectiveness of management strategies and overall quality of life.


Causes of Amyotrophic Lateral Sclerosis (ALS)

The exact causes of ALS remain largely unknown, but research has identified several potential risk factors that might contribute to the development of the disease. Some of the most common ones are your genetic makeup, environmental, and autoimmune conditions.

Genetic Factors

About 10% of ALS cases are hereditary, falling under familial ALS, where gene mutations are directly involved. Genes such as SOD1, C9orf72, and TARDBP are frequently involved in these cases. If ALS runs in your family, it's important to undergo genetic counselling to understand better your risks and the potential for passing these genes to the next generation. This understanding of Amyotrophic Lateral Sclerosis helps in personal planning and broadens ALS research, helping develop targeted therapies.

Environmental Factors

The role of environmental factors in ALS is also significant. Research has shown that exposure to certain toxins or heavy metals like lead may increase the risk of developing ALS. At the cellular level, these substances can cause damage that might trigger the degenerative processes that characterise ALS. Furthermore, the prevalence of ALS has also been reported to be higher among veterans in the military, and scientists are studying whether this association is with exposure to certain chemicals or extreme physical demands of military service.

Other Potential Causes

Besides genetic and environmental causes, other contributing factors thought to be involved include autoimmune responses and viral infections. Some scientists propose that a hyperactive immune system that assaults the body's cells contributes to the denervation of neurons observed in ALS. Previous viral infections and chronic inflammatory states have also been investigated for their roles in ALS causation. This is a complex study area because it complicates the interplay of genes, lifestyle, and environment.


Conclusion

Understanding both Amyotrophic Lateral Sclerosis symptoms and causes is essential for managing this complex disease. Early diagnosis and appropriate management can help maintain motor function and prolong independence. At BLK-Max Super Speciality Hospital, we are dedicated to providing comprehensive care and support for ALS patients. If you suspect you or a loved one might be showing symptoms of ALS, don't hesitate to reach out. Early intervention is key, and we are here to help guide you through diagnosis, treatment options, and disease management.


Frequently Asked Questions

1. Can ALS be inherited?

Yes, familial ALS accounts for about 10% of all cases and is directly inherited from a parent who carries a gene mutation linked to the disease.

2. How is ALS diagnosed?

ALS diagnosis typically involves a series of tests to rule out other diseases, including EMG (electromyography), nerve conduction studies, and MRI scans.

3. What are the treatment options for ALS?

While there is no cure for ALS, treatments focus on slowing the progression of symptoms, managing the complications of the disease, and maintaining quality of life. This includes medication, physical therapy, and supportive technologies.

4. Can ALS be prevented?

Currently, there is no known prevention for ALS, as the exact causes are not fully understood.

5. What kind of doctor treats patients with ALS?

Patients with ALS are usually treated by neurologists, specialists in brain and nervous system disorders, who work with a team of healthcare professionals to provide comprehensive care.