blood-brain barrier
noun
: a naturally occurring barrier created by the modification of brain capillaries (as by reduction in fenestration and formation of tight cell-to-cell contacts) that prevents many substances from leaving the blood and crossing the capillary walls into the brain tissues
Examples of blood-brain barrier in a Sentence
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Unlike most pathogens, Toxoplasma can cross the blood-brain barrier and invade brain cells.
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Bill Sullivan, Discover Magazine, 12 Aug. 2024
This can cause the blood-brain barrier, a network of tissue and vessels that prevents harmful substances from reaching your brain, to become compromised, causing catastrophic consequences.
—Elizabeth B. Kim, The Enquirer, 17 Aug. 2024
All drugs, especially biologics, have great difficulty penetrating the brain due to the blood-brain barrier.
—Bill Sullivan, Discover Magazine, 12 Aug. 2024
Scientists have discovered how to use the parasite’s ability to cross the blood-brain barrier to deliver a therapy for Rett syndrome, a neurodevelopmental disorder that causes severe symptoms, including seizures, loss of speech, loss of muscle tone, and difficulty breathing.
—Avery Hurt, Discover Magazine, 6 Aug. 2024
See all Example Sentences for blood-brain barrier 
Bill Sullivan, Discover Magazine, 12 Aug. 2024
This can cause the blood-brain barrier, a network of tissue and vessels that prevents harmful substances from reaching your brain, to become compromised, causing catastrophic consequences.
—Elizabeth B. Kim, The Enquirer, 17 Aug. 2024
All drugs, especially biologics, have great difficulty penetrating the brain due to the blood-brain barrier.
—Bill Sullivan, Discover Magazine, 12 Aug. 2024
Scientists have discovered how to use the parasite’s ability to cross the blood-brain barrier to deliver a therapy for Rett syndrome, a neurodevelopmental disorder that causes severe symptoms, including seizures, loss of speech, loss of muscle tone, and difficulty breathing.
—Avery Hurt, Discover Magazine, 6 Aug. 2024
See all Example Sentences for blood-brain barrier
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'blood-brain barrier.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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“Blood-brain barrier.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/blood-brain%20barrier. Accessed 12 Sep. 2024.
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