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SCIENTIFIC LITERATURE · MED

Misfolded Proteins and Cognitive Decline: Mechanistic Insights into Neurodegenerative Disorders.

Neurol Int · 2026-03-02

DOI: 10.3390/neurolint18030048PMID: 41893050

Open accessreview-article; Review; Journal ArticleOriginal source ↗

Research overview

The text below is the source article’s original abstract under a verified reuse license. cc by

Cognitive decline represents one of the most common clinical manifestations of neurodegenerative diseases (NDs), substantially affecting the quality of life of both patients and their families. Alzheimer's disease, Parkinson's disease, and amyotrophic lateral sclerosis are major NDs characterized by a progressive degeneration of the central nervous system, with functional impairments extending beyond motor symptoms to multiple cognitive domains, including memory, attention, language, and executive functions. Increasing evidence highlights misfolded protein accumulation as a key driver of neuronal dysfunction and cognitive deterioration. This narrative review examines the major cognitive deficits associated with these disorders, focusing on the underlying molecular mechanisms, particularly protein aggregation, as well as clinical manifestations and their effects on daily life. Furthermore, current diagnostic tools and emerging therapeutic options for mitigating cognitive decline will be further discussed.

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