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Our brain is a complex organ protected by our 7mm thick skull, a protective membrane, known as the meninges, and cerebrospinal fluid. These essential brain structures help protect the brain against physical damage or injury. Another brain structure that protects the brain from harm is the blood-brain barrier. The blood-brain barrier is the shield between the brain’s blood vessels and the cells in the brain’s tissue. While the skull, meninges, and cerebrospinal fluid protect the brain from physical damage or injury, the blood-brain barrier protects the brain from toxins and pathogens in the bloodstream.
Moreover, the presence of the blood-brain barrier in the human brain was first discovered in the late 1800s by the German scientist Paul Ehrlich when he injected blue dye in the bloodstream of a group of mice during an experiment. The blue dye strained all of the animals’ tissues and organs with the exception of the brain and spinal cord. Although the outcome measures of the research study demonstrated the existence of the blood-brain barrier, it wasn’t until the 1960s that researchers were able to use much more powerful technologies to ultimately prove the presence of the blood-brain barrier in the human brain.
After the discoveries of the German scientist Paul Ehrlich during the late 1800s, a collection of experiments on a group of mice demonstrated how the brain regulates what to permit passage to and what to block from entering its blood vessels through the blood-brain barrier. The brain is ultimately protected by the blood-brain barrier, however, this security system can frequently prevent drugs and/or medications from being able to effectively treat brain health issues. Scientists have started working towards developing successful ways to allow treatments to penetrate the blood-brain barrier. Other research studies have demonstrated that by using ultrasound, the blood-brain barrier can be temporarily opened to permit passage for medicines to help treat a variety of brain health issues and neurological diseases, among other problems. For more information, please feel free to ask Dr. Alex Jimenez or contact us at (915) 850-0900.