Neuroprotective Effects of Phytochemicals in Neurological Disorders and Their Clinical Implications

Abstract

Phytochemicals, naturally occurring bioactive compounds found in plants, have garnered significant attention for their therapeutic potential in treating a variety of diseases. While they are widely studied for their role in neurodegenerative diseases such as Alzheimer’s and Parkinson’s, their therapeutic scope extends beyond neurological conditions. Phytochemicals, including ginseng, garlic, curcumin, and berberine, have shown promise in the management of cardiovascular diseases, diabetes, infectious diseases, and liver and kidney health. These compounds exert their effects through mechanisms such as antioxidant activity, anti-inflammatory properties, and immune modulation, targeting key pathways like oxidative stress, neuroinflammation, and cellular apoptosis. Despite their promising preclinical results, challenges like low bioavailability, inconsistent dosages, and limited clinical validation remain barriers to their widespread clinical use. However, ongoing research continues to highlight their potential as complementary therapies in various health conditions. This review explores the mechanisms through which phytochemicals provide therapeutic benefits, summarizing both preclinical and clinical evidence while addressing the hurdles to their clinical application. With further research, phytochemicals could play a pivotal role in the prevention and treatment of numerous diseases, offering a natural and potentially safer alternative or adjunct to conventional therapies.