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Study · Animal study (in vivo) · rat · 2013

4 results

Treatment of mild traumatic brain injury with an erythropoietin-mimetic peptide.

Robertson CS, Garcia R, Gaddam SS, Grill RJ, Cerami Hand C, Tian TS, Hannay HJ

Journal of neurotrauma20 Sept 2012Cited by 24 (Europe PMC)

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 study4

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

  1. 01AnimalAnimal study (in vivo)Efficacy outcome

    In rats with mild traumatic brain injury, pHBSP shortened the time to find the platform in the Morris water maze compared with control peptide.

    In plain wordsIn rats with mild brain injury, pHBSP helped rats find the maze platform faster than the inactive control peptide.

    Outcome
    DecreaseMorris water maze: time to find the platform
    Study

    ratn = 64

    Mild traumatic brain injury (cortical impact)
    Comparator
    Inactive control peptide
    Outcome group
    Cognition and memory · Nervous system and cognition
    Studied dose
    30 μg/kg · intraperitoneal · Every 12 h for 3 daysAs given in this study (rat).

    Measurements

    Time to find platform
    22.3 sec
    pHBSP
    Time to find platform
    26.3 sec
    Control

    Source sentences

    Summary
    Treatment with pHBSP resulted in significantly improved performance on the Morris water maze task. Rats that received pHBSP required 22.3±1.3 sec to find the platform, compared to 26.3±1.3 sec in control rats (p=0.022).
    1 context sentence
    Summary · context
    Sixty-four rats were randomly assigned to pHBSP or control (inactive peptide) 30 μg/kg IP every 12 h for 3 days, starting at either 1 hour (early treatment) or 24 h (delayed treatment), after mTBI (cortical impact injury 3 m/sec, 2.5 mm deformation).
  2. 02AnimalAnimal study (in vivo)Efficacy outcome

    In rats with mild traumatic brain injury, pHBSP shortened the distance traveled to the platform in the Morris water maze compared with control peptide.

    In plain wordsIn rats with mild brain injury, pHBSP rats swam a shorter way to the maze platform than rats given the inactive control peptide.

    Outcome
    DecreaseMorris water maze: distance traveled to the platform
    Study

    ratn = 64

    Mild traumatic brain injury (cortical impact)
    Comparator
    Inactive control peptide
    Outcome group
    Cognition and memory · Nervous system and cognition
    Studied dose
    30 μg/kg · intraperitoneal · Every 12 h for 3 daysAs given in this study (rat).

    Measurements

    Distance to platform
    5 meters
    pHBSP
    Distance to platform
    6.1 meters
    Control

    Source sentences

    Summary
    The rats that received pHBSP also traveled a significantly shorter distance to get to the platform, 5.0±0.3 meters, compared to 6.1±0.3 meters in control rats (p=0.019).
    1 context sentence
    Summary · context
    Sixty-four rats were randomly assigned to pHBSP or control (inactive peptide) 30 μg/kg IP every 12 h for 3 days, starting at either 1 hour (early treatment) or 24 h (delayed treatment), after mTBI (cortical impact injury 3 m/sec, 2.5 mm deformation).
  3. 03AnimalAnimal study (in vivo)Efficacy outcome

    In rats with mild traumatic brain injury, pHBSP had no treatment effect on motor performance.

    In plain wordsIn rats with mild brain injury, pHBSP did not change movement ability compared with the inactive control peptide.

    Outcome
    No significant changeMotor performance
    Study

    ratn = 64

    Mild traumatic brain injury (cortical impact)
    Comparator
    Inactive control peptide
    Outcome group
    Exercise and physical function · Nervous system and cognition
    Studied dose
    30 μg/kg · intraperitoneal · Every 12 h for 3 daysAs given in this study (rat).

    Source sentences

    Summary
    Motor tasks were only transiently impaired in this mTBI model, and no treatment effect on motor performance was observed with pHBSP.
    1 context sentence
    Summary · context
    Sixty-four rats were randomly assigned to pHBSP or control (inactive peptide) 30 μg/kg IP every 12 h for 3 days, starting at either 1 hour (early treatment) or 24 h (delayed treatment), after mTBI (cortical impact injury 3 m/sec, 2.5 mm deformation).
  4. 04AnimalAnimal study (in vivo)Mechanism

    In rats with mild traumatic brain injury, pHBSP reduced the activation of CD68-labeled inflammatory cells.

    In plain wordsIn rats with mild brain injury, pHBSP reduced the activation of inflammatory cells in the brain.

    Outcome
    DecreaseCD68-labeled inflammatory cell activation
    Study

    ratn = 64

    Mild traumatic brain injury (cortical impact)
    Comparator
    Inactive control peptide
    Outcome group
    Inflammation markers · Nervous system and cognition
    Studied dose
    30 μg/kg · intraperitoneal · Every 12 h for 3 daysAs given in this study (rat).

    Source sentences

    Summary
    Despite the minimal tissue injury with this mTBI model, there was significant activation of inflammatory cells identified by labeling with CD68, which was reduced in the pHBSP-treated animals.
    1 context sentence
    Summary · context
    Sixty-four rats were randomly assigned to pHBSP or control (inactive peptide) 30 μg/kg IP every 12 h for 3 days, starting at either 1 hour (early treatment) or 24 h (delayed treatment), after mTBI (cortical impact injury 3 m/sec, 2.5 mm deformation).

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

    9 Oct 2026, 19:08 UTC

    Study results updated

  2. Version 1

    9 Oct 2026, 03:13 UTC

    First added · source update from Europe PMC

Subjects

Terms as the source lists them.

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