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Study · Ex vivo tissue · rat · 2011

2 results

[Studying specific effects of nootropic drugs on glutamate receptors in the rat brain].

Firstova IuIu, Vasil'eva EV, Kovalev GI

Eksperimental'naia i klinicheskaia farmakologiia1 Jan 2011

PMID21476267 (opens in a new tab)PepBankPUB-21476267

Summary

The text of this summary is not shown here, because the article license does not allow reuse. Read it at the source (opens in a new tab)

Text rights: Publisher copyright. Results still quote short attributed sentences.

Results from this study2

2 results from studies that gave the peptide. No result from this study comes from people.

  1. 01LabEx vivo tissueActivity measurement

    In an in vitro binding assay on rat brain, semax moderately competed with the mGlu receptor ligand [G-3H]LY 354740 for receptor sites.

    In plain wordsIn lab tests on rat brain tissue, semax moderately competed with a reference ligand for mGlu receptor binding sites.

    Peptide
    Semax
    Outcome
    Not applicableCompetition with [G-3H]LY 354740 at mGlu receptor binding sites
    Study

    ratn: not reported in source

    Radioligand binding to rat brain glutamate receptors in vitro
    Outcome group
    Receptor activity and mechanism · Nervous system and cognition
    Studied dose
    Dose not stated

    Measurements

    IC50
    33 microM
    mGlu receptor sites, competition with [G-3H]LY 354740

    Source sentences

    Summary
    The heptapeptide drug semax was moderately competitive with [G-3H]LY 354740 for mGlu receptor sites (IC50 = 33 +/- 2.4 microM).
    1 context sentence
    Summary · context
    The influence of nootropic drugs of different groups (piracetam, phenotropil, nooglutil, noopept, semax, meclofenoxate, pantocalcine, and dimebon) on the binding of the corresponding ligands to AMPA, NMDA, and mGlu receptors of rat brain has been studied by the method of radio-ligand binding in vitro.
  2. 02LabEx vivo tissueActivity measurement

    In rat brain binding assays, noopept competed for AMPA receptor sites with an IC50 of 80 microM, approximately tenfold weaker than nooglutil.

    In plain wordsIn lab tests with rat brain, noopept competed for AMPA receptor sites more weakly than nooglutil.

    Outcome
    Not applicableCompetition for AMPA receptor binding sites
    Study

    ratn: not reported in source

    Rat brain glutamate receptor binding assay
    Comparator
    Nooglutil
    Outcome group
    Receptor activity and mechanism · Nervous system and cognition
    Studied dose
    Dose not stated

    Measurements

    IC50
    80 microM
    noopept competition for AMPA receptor sites

    Source sentences

    Summary
    It is established that nooglutil exhibits pharmacologically significant competition with a selective agonist of AMPA receptors ([G-3H]Ro 48-8587) for the receptor binding sites (with IC50 = 6.4 +/- 0.2 microM), while the competition of noopept for these receptor binding sites was lower by an order o…
    1 context sentence
    Summary · context
    The influence of nootropic drugs of different groups (piracetam, phenotropil, nooglutil, noopept, semax, meclofenoxate, pantocalcine, and dimebon) on the binding of the corresponding ligands to AMPA, NMDA, and mGlu receptors of rat brain has been studied by the method of radio-ligand binding in vitro.

AI wrote and checked these results. AI can make mistakes, so check important results against the source.

Version history

PepBank keeps every version of the data on this study. Status changes from Retraction Watch, Europe PMC and Crossref are listed with their source.

  1. Versions 4 to 12Current

    28 Oct 2026, 02:02 UTC

    The same notice was added 9 times, first on 21 Oct 2026, 15:59 UTC. The status did not change between them.

    Study results updated

  2. Version 3

    21 Oct 2026, 12:50 UTC

    Study data updated · source update from Europe PMC

  3. Version 2

    12 Oct 2026, 17:28 UTC

    Study results updated

  4. Version 1

    9 Oct 2026, 03:04 UTC

    First added · source update from Europe PMC

Subjects

Terms as the source lists them.

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