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Study · Animal study (in vivo) · rat · 2012

4 results

Neuroprotection with an erythropoietin mimetic peptide (pHBSP) in a model of mild traumatic brain injury complicated by hemorrhagic shock.

Robertson CS, Cherian L, Shah M, Garcia R, Navarro JC, Grill RJ, Hand CC, Tian TS, Hannay HJ

Journal of neurotrauma27 Jul 2011Cited by 36 (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 cortical impact injury followed by hemorrhagic hypotension, pHBSP reduced contusion volume at 2 weeks compared with control.

    In plain wordsIn rats with brain injury and blood loss, pHBSP led to a smaller injury volume at 2 weeks than control treatment.

    Outcome
    DecreaseContusion volume at 2 weeks post-injury
    Study

    Ratn: not reported in source

    Rat model of mild cortical impact injury followed by hemorrhagic hypotension
    Comparator
    Inactive substance (control)
    Outcome group
    Neuroprotection · Nervous system and cognition
    Studied dose
    30 μg/kg every 12 h · 3 daysAs given in this study (Rat).

    Measurements

    Contusion volume
    5.9 mm(3)
    pHBSP-treated
    Contusion volume
    20.8 mm(3)
    control groups

    Source sentences

    Summary
    Both treatments reduced contusion volume at 2 weeks post-injury, from 20.8±2.8 mm(3) in the control groups to 7.7±2.0 mm(3) in the EPO-treated group and 5.9±1.5 mm(3) in the pHBSP-treated group (p=0.001).
    2 context sentences
    Summary · context
    Effects on early cerebral hemodynamics and neurological outcome at 2 weeks post-injury were compared in a rat model of mild cortical impact injury (3m/sec, 2.5 mm deformation) followed by 50 min of hemorrhagic hypotension (MAP 40 mm Hg for 50 min).
    Summary · context
    Rats were randomly assigned to receive 5000 U/kg of EPO, 30 μg/kg of pHBSP, or an inactive substance every 12 h for 3 days, starting at the end of resuscitation from the hemorrhagic hypotension, which was 110 min post-injury.
  2. 02AnimalAnimal study (in vivo)Efficacy outcome

    In rats with mild cortical impact injury and hemorrhagic hypotension, pHBSP improved recovery of cerebral blood flow in the injured brain after resuscitation.

    In plain wordsIn rats with brain injury and blood loss, pHBSP improved the return of blood flow to the injured brain.

    Outcome
    IncreaseRecovery of cerebral blood flow in the injured brain
    Study

    Ratn: not reported in source

    Rat model of mild cortical impact injury followed by hemorrhagic hypotension
    Comparator
    Inactive substance (control)
    Outcome group
    Neuroprotection · Nervous system and cognition
    Studied dose
    30 μg/kg every 12 h · 3 daysAs given in this study (Rat).

    Source sentences

    Summary
    Both agents improved recovery of cerebral blood flow in the injured brain following resuscitation, and resulted in more rapid recovery of performance on beam balancing and beam walking tests.
    2 context sentences
    Summary · context
    Effects on early cerebral hemodynamics and neurological outcome at 2 weeks post-injury were compared in a rat model of mild cortical impact injury (3m/sec, 2.5 mm deformation) followed by 50 min of hemorrhagic hypotension (MAP 40 mm Hg for 50 min).
    Summary · context
    Rats were randomly assigned to receive 5000 U/kg of EPO, 30 μg/kg of pHBSP, or an inactive substance every 12 h for 3 days, starting at the end of resuscitation from the hemorrhagic hypotension, which was 110 min post-injury.
  3. 03AnimalAnimal study (in vivo)Efficacy outcome

    In rats with mild cortical impact injury and hemorrhagic hypotension, pHBSP led to more rapid recovery of performance on the beam balancing test.

    In plain wordsIn rats with brain injury and blood loss, pHBSP gave faster recovery on a balance test.

    Outcome
    IncreaseRecovery of beam balancing performance
    Study

    Ratn: not reported in source

    Rat model of mild cortical impact injury followed by hemorrhagic hypotension
    Comparator
    Inactive substance (control)
    Outcome group
    Neuroprotection · Nervous system and cognition
    Studied dose
    30 μg/kg every 12 h · 3 daysAs given in this study (Rat).

    Source sentences

    Summary
    Both agents improved recovery of cerebral blood flow in the injured brain following resuscitation, and resulted in more rapid recovery of performance on beam balancing and beam walking tests.
    2 context sentences
    Summary · context
    Effects on early cerebral hemodynamics and neurological outcome at 2 weeks post-injury were compared in a rat model of mild cortical impact injury (3m/sec, 2.5 mm deformation) followed by 50 min of hemorrhagic hypotension (MAP 40 mm Hg for 50 min).
    Summary · context
    Rats were randomly assigned to receive 5000 U/kg of EPO, 30 μg/kg of pHBSP, or an inactive substance every 12 h for 3 days, starting at the end of resuscitation from the hemorrhagic hypotension, which was 110 min post-injury.
  4. 04AnimalAnimal study (in vivo)Efficacy outcome

    In rats with mild cortical impact injury and hemorrhagic hypotension, pHBSP led to more rapid recovery of performance on the beam walking test.

    In plain wordsIn rats with brain injury and blood loss, pHBSP gave faster recovery on a walking test.

    Outcome
    IncreaseRecovery of beam walking performance
    Study

    Ratn: not reported in source

    Rat model of mild cortical impact injury followed by hemorrhagic hypotension
    Comparator
    Inactive substance (control)
    Outcome group
    Neuroprotection · Nervous system and cognition
    Studied dose
    30 μg/kg every 12 h · 3 daysAs given in this study (Rat).

    Source sentences

    Summary
    Both agents improved recovery of cerebral blood flow in the injured brain following resuscitation, and resulted in more rapid recovery of performance on beam balancing and beam walking tests.
    2 context sentences
    Summary · context
    Effects on early cerebral hemodynamics and neurological outcome at 2 weeks post-injury were compared in a rat model of mild cortical impact injury (3m/sec, 2.5 mm deformation) followed by 50 min of hemorrhagic hypotension (MAP 40 mm Hg for 50 min).
    Summary · context
    Rats were randomly assigned to receive 5000 U/kg of EPO, 30 μg/kg of pHBSP, or an inactive substance every 12 h for 3 days, starting at the end of resuscitation from the hemorrhagic hypotension, which was 110 min post-injury.

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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