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Study · Animal study (in vivo) · mouse · 2010

8 results

[Antihypoxic and antiamnesic effects of mexidol and semax].

Iasnetsov VV, Voronina TA

Eksperimental'naia i klinicheskaia farmakologiia1 Apr 2010

PMID20486550 (opens in a new tab)PepBankPUB-20486550

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 study8

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

  1. 01AnimalAnimal study (in vivo)Efficacy outcome

    In mice, a single dose of semax at 0.05 mg/kg only produced an antihypoxic effect in the altitude chamber and hermetic chamber tests.

    In plain wordsIn mice, a single semax dose of 0.05 mg/kg only gave protection against low oxygen in two chamber tests.

    Peptide
    Semax
    Outcome
    IncreaseAntihypoxic effect, single administration (altitude chamber and hermetic chamber)
    Study

    mousen: not reported in source

    Altitude chamber and hermetic chamber tests
    Outcome group
    Neuroprotection · Nervous system and cognition
    Studied dose
    0.05 mg/kg · single administrationAs given in this study (mouse).

    Source sentences

    Summary
    Upon single administration, mexidol and semax only in doses of 100 and 0.05 mg/kg, respectively, produced an antihypoxic effect on mice in the altitude chamber and hermetic chamber tests.
  2. 02AnimalAnimal study (in vivo)Efficacy outcome

    In mice, a 6-day preventive course of semax at 0.1 mg/kg per day gave a significant antihypoxic effect in acute hypobaric hypoxia, where a single dose was ineffective.

    In plain wordsIn mice, six days of semax at 0.1 mg/kg per day protected against low oxygen, where one dose did not.

    Peptide
    Semax
    Outcome
    IncreaseAntihypoxic effect, 6-day course (acute hypobaric hypoxia)
    Study

    mousen: not reported in source

    Acute hypobaric hypoxia
    Outcome group
    Neuroprotection · Nervous system and cognition
    Studied dose
    0.1 mg/kg per day · 6 daysAs given in this study (mouse).

    Source sentences

    Summary
    Preventive course administration of mexidol and semax for 6 days gave significant antihypoxic effect on the model of acute hypobaric hypoxia in mice in doses of 75 and 0.1 mg/kg per day, respectively, in which the same preparations upon single administration were ineffective.
  3. 03AnimalAnimal study (in vivo)Efficacy outcome

    In mice, a single dose of semax was not effective in models of acute hemic and histotoxic hypoxia.

    In plain wordsIn mice, one dose of semax did not protect in two other models of low oxygen.

    Peptide
    Semax
    Outcome
    No significant changeAntihypoxic effect in hemic and histotoxic hypoxia, single administration
    Study

    mousen: not reported in source

    Acute hemic and histotoxic hypoxia
    Outcome group
    Neuroprotection · Nervous system and cognition
    Studied dose
    Dose not stated · single administrationAs given in this study (mouse).

    Source sentences

    Summary
    Neither mexidol nor semax upon single administration were effective on the models of acute hemic and histotoxic hypoxia.
  4. 04AnimalAnimal study (in vivo)Efficacy outcome

    In mice, semax had marked antiamnesic effects on various models of amnesia, comparable with piracetam and oxyracetam.

    In plain wordsIn mice, semax reduced memory loss in several models, to a degree similar to piracetam and oxyracetam.

    Peptide
    Semax
    Outcome
    IncreaseAntiamnesic effect on various models of amnesia
    Study

    mousen: not reported in source

    Various models of amnesia
    Comparator
    Piracetam and oxyracetam
    Outcome group
    Cognition and memory · Nervous system and cognition
    Studied dose
    Dose not stated

    Source sentences

    Summary
    On various models of amnesia (except that induced by the maximal electroshock) in mice, both mexidol and semax exhibited marked antiamnesic effects comparable with that of the reference nootrope drugs piracetam and oxyracetam.
  5. 05AnimalAnimal study (in vivo)Efficacy outcome

    In mice, the antiamnesic effects of semax did not extend to amnesia induced by maximal electroshock.

    In plain wordsIn mice, semax did not reduce memory loss caused by strong electric shock.

    Peptide
    Semax
    Outcome
    No significant changeAntiamnesic effect on amnesia induced by maximal electroshock
    Study

    mousen: not reported in source

    Maximal electroshock-induced amnesia
    Outcome group
    Cognition and memory · Nervous system and cognition
    Studied dose
    Dose not stated

    Source sentences

    Summary
    On various models of amnesia (except that induced by the maximal electroshock)
  6. 06AnimalAnimal study (in vivo)Mechanism

    In mice, semax showed a bell-shaped reversible dose-effect relationship.

    In plain wordsIn mice, semax effects followed a bell-shaped dose curve, so more drug was not always better.

    Peptide
    Semax
    Outcome
    MixedDose-effect relationship
    Study

    mousen: not reported in source

    Mouse hypoxia and amnesia models
    Outcome group
    Neuroprotection · Nervous system and cognition
    Studied dose
    Dose not stated

    Source sentences

    Summary
    semax exhibited a bell-shaped reversible dose-effect relationships.
  7. 07LabEx vivo tissueMechanism

    In rat hippocampal slices, semax inhibited the ortho- and antidromic population response spikes of CA1 pyramidal neurons.

    In plain wordsIn lab tests on rat brain slices, semax reduced the electrical response spikes of CA1 nerve cells.

    Peptide
    Semax
    Outcome
    DecreasePopulation response spikes of CA1 pyramidal neurons in hippocampal slices
    Study

    ratn: not reported in source

    Surviving hippocampal slices
    Outcome group
    Neuroprotection · Nervous system and cognition
    Studied dose
    Dose not stated

    Source sentences

    Summary
    Mexidol and semax inhibited the ortho- and antidromic population response spikes of CA1 pyramidal neurons of survival hippocampal slices in rats.
  8. 08LabEx vivo tissueMechanism

    In rat brain mitochondria, semax, in contrast to mexidol, did not increase oxygen consumption.

    In plain wordsIn lab tests on rat brain mitochondria, semax did not raise oxygen use, unlike mexidol.

    Peptide
    Semax
    Outcome
    No significant changeOxygen consumption in brain mitochondria
    Study

    ratn: not reported in source

    Rat brain mitochondria
    Outcome group
    Mitochondrial function · Nervous system and cognition
    Studied dose
    Dose not stated

    Source sentences

    Summary
    It was estimated that mexidol (in contrast to semax) increased oxygen consumption in rat brain mitochondria and had a linear dose-effect relationship in a concentration range of 1-5 mM.

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. Version 2Current

    12 Oct 2026, 17:28 UTC

    Study results updated

  2. 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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