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  2. Blood–brain barrier - Wikipedia

    en.wikipedia.org/wiki/Bloodbrain_barrier

    The bloodbrain barrier (BBB) is a highly selective semipermeable border of endothelial cells that regulates the transfer of solutes and chemicals between the circulatory system and the central nervous system, thus protecting the brain from harmful or unwanted substances in the blood. [1]

  3. Biological barrier - Wikipedia

    en.wikipedia.org/wiki/Biological_barrier

    Blood-testis barrier, the biological barrier between blood and testes; Blood-placental barrier, the biological barrier between a pregnant individual's blood and foetal blood (blood of one or more foetuses) Blood-CSF barrier, the biological barrier between blood and cerebrospinal fluid (CSF; also called brain fluid) Blood–spinal cord barrier ...

  4. You might have a spoon's worth of microplastics - in your brain.

    www.aol.com/might-spoons-worth-microplastics...

    Children could be at highest risk from plastic in the brain Because the brain is relatively protected by the blood-brain barrier, there is at least some defense by the body. However, two groups ...

  5. Lead poisoning - Wikipedia

    en.wikipedia.org/wiki/Lead_poisoning

    Lead is able to pass through the endothelial cells at the blood brain barrier because it can substitute for calcium ions and be taken up by calcium-ATPase pumps. [202] Lead poisoning interferes with the normal development of a child's brain and nervous system; therefore children are at greater risk of lead neurotoxicity than adults are. [203]

  6. Drug delivery to the blood–brain barrier - Wikipedia

    en.wikipedia.org/wiki/Drug_delivery_to_the_brain

    The bloodbrain barrier is formed by special tight junctions between endothelial cells lining brain blood vessels. Blood vessels of all tissues contain this monolayer of endothelial cells, however only brain endothelial cells have tight junctions preventing passive diffusion of most substances into the brain tissue. [1]

  7. Brain health and pollution - Wikipedia

    en.wikipedia.org/wiki/Brain_health_and_pollution

    Lead's ability to imitate calcium allows it to cross the bloodbrain barrier. Lead also upregulates glutathione. [44] Blood lead concentrations ≥ 5·0 μg/dL could result in children scoring 3–5 points lower in intelligence tests than those with the concentrations < 5·0 μg/dL .

  8. Human brain samples contain an entire spoon’s worth of ...

    www.aol.com/human-brain-samples-contain-entire...

    The human brain is about 60% fat by weight, far more than any other organ. Essential fatty acids, such as omega 3s, are key to the strength and performance of the brain’s cells.

  9. GLUT1 deficiency - Wikipedia

    en.wikipedia.org/wiki/GLUT1_deficiency

    The GLUT1 protein that transports glucose across the blood brain barrier is encoded by the SLC2A1 gene, located on chromosome 1. [8] In GLUT1 deficiency syndrome, one of the two genes is damaged by a mutation and an insufficient amount protein is made. As a result, insufficient glucose is passing the blood brain barrier.