Rethinking ALS: Current understanding and emerging therapeutic strategies
Abstract
Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disorder characterized by progressive degeneration of the upper and lower motor neurons, which leads to muscle atrophy, spasticity, and ultimately respiratory failure. The etiology of ALS remains unclear, though a combination of genetic and environmental factors is suspected. Advances in understanding ALS pathophysiology, including the role of RNA metabolism, mitochondrial dysfunction, and glutamate toxicity, have paved the way for new research directions. While Riluzole offers limited survival benefits, there is no cure, and treatment remains mostly supportive. This article summarizes the current understanding of ALS in terms of its pathophysiology, epidemiology, risk factors, clinical presentation, and treatment strategies.
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