Theanine: a phytochemical candidate for neural protection

Area of Science:

• Neuroscience
• Pharmacology
• Natural Product Chemistry

Background:

• Theanine, found in Camellia sinensis, possesses notable neuroprotective and health-promoting properties.
• Growing interest in natural compounds for neurological health necessitates a review of theanine's potential.

Purpose of the Study:

• To review and synthesize recent literature (past 5 years) on the neuroprotective functions of theanine.
• To analyze the mechanisms and therapeutic applications of theanine in neurological disorders.

Main Methods:

• Comprehensive literature search of studies published within the last five years.
• Analysis and synthesis of research focusing on theanine's neuroprotective effects.
• Examination of studies on its impact on neuroinflammation, neurodegenerative diseases, and nerve injury.

Main Results:

• Theanine alleviates neuroinflammation, offering therapeutic benefits for stress-induced mental disorders, including sleep disturbances and depression.
• It demonstrates efficacy in delaying progression and promoting repair in neurodegenerative conditions like Parkinson's and Alzheimer's disease.
• Theanine also protects against nerve injury-induced organ dysfunction and exhibits synergistic effects with other phytochemicals.

Conclusions:

• Theanine exhibits significant neuroprotective potential through mechanisms involving ferroptosis regulation, neural stem cell differentiation, and modulation of neural signaling pathways.
• Further research is essential for a comprehensive understanding and clinical application of theanine.
• Theanine represents a promising natural compound for neurological health and disease management.