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Updated: May 25, 2026

Using Enzyme-based Biosensors to Measure Tonic and Phasic Glutamate in Alzheimer's Mouse Models
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Using Enzyme-based Biosensors to Measure Tonic and Phasic Glutamate in Alzheimer's Mouse Models

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Assessing glutamatergic function and dysfunction in peripheral tissues.

L Tremolizzo1, G Sala, C P Zoia

  • 1Department of Neuroscience and Biomedical Technologies, University of Milano-Bicocca, via Cardore 48-20900 Monza (MI), Italy. lucio.tremolizzo@unimib.it

Current Medicinal Chemistry
|February 7, 2012
PubMed
Summary
This summary is machine-generated.

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Peripheral glutamate measurements in cells like leukocytes and platelets can reflect central nervous system (CNS) dysfunctions, offering a novel diagnostic approach for neuropsychiatric diseases. This method assesses glutamate dynamics in easily accessible tissues.

Area of Science:

  • Neuroscience
  • Biochemistry
  • Pathology

Background:

  • Glutamate is a key neurotransmitter in the central nervous system (CNS) and peripheral nervous system (PNS).
  • Glutamatergic systems are present in various peripheral non-neural tissues, and alterations are linked to neuropsychiatric diseases.
  • Peripheral glutamate measurements offer a potential window into CNS pathophysiology.

Purpose of the Study:

  • To review evidence supporting the use of peripheral glutamate measurements for assessing CNS function.
  • To highlight the utility of peripheral cells (leukocytes, platelets, fibroblasts) and plasma for glutamate analysis.
  • To discuss technical challenges and potential applications in neuropsychiatric disorders.

Main Methods:

  • Review of existing literature on glutamate signaling in the CNS and PNS.

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  • Analysis of studies measuring glutamate dynamics (release, uptake, signaling, synthesis, degradation) in peripheral cells.
  • Examination of plasma and cerebrospinal fluid (CSF) glutamate levels.

    • Main Results:

    • Peripheral cell glutamate measurements can mirror CNS glutamatergic dysfunctions.
    • Leukocytes, platelets, and fibroblasts are viable peripheral biomarkers due to accessibility and stability.
    • Plasma and CSF glutamate levels can indicate central-peripheral glutamate crosstalk.

    Conclusions:

    • Peripheral glutamate analysis, particularly in blood cells, presents a promising, minimally invasive method for evaluating CNS glutamatergic status.
    • This approach may aid in diagnosing and monitoring neuropsychiatric conditions by reflecting homologous central dysfunctions.
    • Further research is needed to address technical pitfalls and fully validate these peripheral biomarkers.