Alzheimer's Disease-Current Status and Future Directions.

Area of Science:

• Neurodegenerative Disorders
• Genetics of Aging
• Alzheimer's Disease Pathophysiology

Background:

• Alzheimer's disease (AD) is an age-related neurodegenerative disorder characterized by amyloid-beta (Aβ) plaques, neurofibrillary tangles (NFTs), neuronal loss, and memory impairment.
• The exact cause of AD remains unclear, though genetic and non-genetic factors are implicated, with the apolipoprotein E ɛ4 allele being a significant genetic risk factor.
• Oxidative stress is increasingly recognized as a contributing factor in AD etiology.

Purpose of the Study:

• To review the genetic and predisposing factors contributing to Alzheimer's disease.
• To elucidate the pathophysiology of AD, including the formation mechanisms of Aβ plaques and NFTs.
• To detail recent diagnostic advances and explore nutrition-based antioxidant therapies for AD intervention.

Main Methods:

• Literature review focusing on genetic factors, AD pathophysiology, plaque and tangle formation.
• Analysis of current diagnostic tools and advancements for Alzheimer's disease.
• Examination of oxidative stress and its role, with emphasis on antioxidant therapies.

Main Results:

• Apolipoprotein E ɛ4 is identified as a major genetic risk factor for AD.
• The review details mechanisms of Aβ plaque and NFT formation and their impact on the AD brain.
• Current diagnostic methods and emerging nutritional antioxidant strategies are presented.

Conclusions:

• Understanding genetic and predisposing factors is crucial for AD research.
• Targeting Aβ plaques, NFTs, and oxidative stress, potentially through nutrition, offers therapeutic avenues.
• Continued research into AD causes, diagnostics, and interventions is essential for effective management.