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Related Concept Videos

The Blood-brain Barrier00:49

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Physiological barriers are semi-permeable cellular structures restricting drug diffusion into intracellular compartments and tissues. There are six types of physiological barriers: blood endothelial, cell membrane, blood-brain, blood-cerebrospinal fluid (CSF), blood-placenta, and blood-testis barriers.
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Drug distribution in the body is intricately regulated by various physiological barriers that control the passage of substances. These include the capillary endothelial barrier, the blood-brain, blood-cerebrospinal fluid, blood-placental, and blood-testis barriers.
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Related Experiment Video

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Author Spotlight: A Personalized Approach Towards Investigating Alzheimer's Disease Using an In Vitro Blood-Brain Barrier Model
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The dynamic blood-brain barrier.

James Keaney1, Matthew Campbell1

  • 1Smurfit Institute of Genetics, Trinity College Dublin, Ireland.

The FEBS Journal
|August 17, 2015
PubMed
Summary
This summary is machine-generated.

The blood-brain barrier (BBB) is a dynamic interface regulating brain function, not an impermeable wall. Recent research highlights its role in CNS disorders and its plasticity in maintaining brain homeostasis.

Keywords:
Alzheimer's diseaseGLUT-1Mfsd2aastrocytesblood-brain barriergut microbiotaneurovascular unitpericytestight junctionstranscytosis

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Area of Science:

  • Neuroscience
  • Cell Biology
  • Physiology

Background:

  • The blood-brain barrier (BBB) is a critical multicellular interface separating the central nervous system (CNS) from peripheral circulation.
  • BBB dysfunction is linked to numerous acute and chronic CNS disorders, impacting brain function.
  • The healthy BBB acts as a communication hub, not merely a barrier, between the CNS and blood.

Purpose of the Study:

  • To provide an overview of current blood-brain barrier research.
  • To summarize novel findings on BBB regulation in brain homeostasis.
  • To highlight the BBB's role as a dynamic signaling center.

Main Methods:

  • Review of current literature on blood-brain barrier structure and function.
  • Synthesis of recent findings on molecular transport and plasticity.
  • Analysis of the BBB's role in central nervous system homeostasis.

Main Results:

  • The BBB is a complex, dynamic structure with specific transport pathways regulating molecular traffic.
  • BBB plasticity, including changes in tight junction complexes, is crucial for barrier maintenance.
  • Novel insights reveal the BBB's active role in the homeostatic regulation of the brain.

Conclusions:

  • The blood-brain barrier is a highly plastic and communicative interface essential for central nervous system health.
  • Understanding BBB regulation offers new perspectives on managing CNS disorders.
  • Further research into BBB transport and plasticity is vital for advancing neuroscience.