To review the structure, function, and therapeutic implications of the blood-brain barrier (BBB) in relation to drug delivery and neurological diseases, highlighting its dual role as a protector and a therapeutic obstacle.
Key Findings:
The BBB restricts over 98% of small molecules and 100% of large molecules from entering the brain.
BBB breakdown is a key biomarker for adverse outcomes in neurological conditions.
Recent advancements in molecular technologies have improved understanding of BBB physiology and pathology.
Approximately three billion people worldwide are affected by neurological conditions, highlighting the urgent need for effective treatments.
Interpretation:
The BBB serves as both a protective barrier and a significant obstacle for drug delivery, necessitating innovative strategies to enhance therapeutic access while maintaining brain protection.
Limitations:
Current drug delivery methods often result in low therapeutic levels in the brain.
Limited treatment options exist for neurological conditions affecting billions globally, including Alzheimer's and stroke.
Conclusion:
Understanding the BBB's structure and function is crucial for developing effective therapies for neurological diseases, with ongoing research needed to improve drug delivery systems and innovative strategies.
