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Astrocytes and Glutamate Regulation

Protecting neurons from their own excitatory signal.

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The Nirva InstitutePublished 2026≈ 6 min read
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Glutamate is the primary excitatory neurotransmitter in the central nervous system. It also, at high concentrations, causes neuronal damage. Astrocytes manage this trade-off in real time.

§ 1

Astrocyte glutamate transporters

EAAT2/GLT-1 is the dominant astrocytic glutamate transporter, responsible for the majority of extracellular glutamate clearance.182

§ 2

Consequences of disruption

Impaired astrocytic glutamate clearance contributes to excitotoxicity in stroke, ALS, TBI, and epilepsy.214,202,206

Scientific References

Primary literature

AMA numeric style. Citation numbers are unified across the Nirva Life ecosystem — the same number refers to the same reference across every library article. Full registry is anchored in the Cornerstone Paper.

  1. 182.Verkhratsky A, Nedergaard M. Physiology of astroglia. Physiol Rev. 2018;98(1):239-389. PubMed ↗
  2. 202.Liu Z, Chopp M. Astrocytes, therapeutic targets for neuroprotection and neurorestoration in ischemic stroke. Prog Neurobiol. 2016;144:103-120. PubMed ↗
  3. 206.Robel S, Sontheimer H. Glia as drivers of abnormal neuronal activity. Nat Neurosci. 2016;19(1):28-33. PubMed ↗
  4. 214.Yamanaka K, Komine O. The multi-dimensional roles of astrocytes in ALS. Neurosci Res. 2018;126:31-38. PubMed ↗

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