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Study · Not a test of the peptide alone · 2007

2 results

A single growth hormone determination 30 minutes after the administration of the GHRH plus GHRP-6 test is sufficient for the diagnosis of somatotrope dysfunction in patients who have suffered traumatic brain injury.

Castro AI, Lage M, Peino R, Kelestimur F, Dieguez C, Casanueva FF

Journal of endocrinological investigation1 Mar 2007Cited by 2 (Europe PMC)

PMID17505156 (opens in a new tab)DOI10.1007/bf03347429 (opens in a new tab)PepBankPUB-17505156
Publisher pagePubMedAsk about this study
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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

No result from this study comes from a test of the peptide.

Studies that did not test the peptide alone2

In this study, GHRP-6 was a lab tool or a carrier, part of a mix, or the subject of a lab method. These results are not evidence about taking GHRP-6.

  1. 01HumanNot a test of GHRP-6 aloneObservational studyOther

    In patients with traumatic brain injury, GH at 30 min correlated strongly with the GH peak after the GHRH plus GHRP‑6 test.

    In plain wordsIn people with past brain injury, one growth hormone reading at 30 minutes closely matched the peak in the GHRH plus GHRP‑6 test.

    Peptide
    GHRP-6
    Outcome
    Not applicableCorrelation of GH at 30 min with GH peak in the GHRH plus GHRP-6 test
    Study

    n = 83

    Outcome group
    Growth hormone and IGF-1 · Endocrine and hormones

    Measurements

    Correlation r
    0.972 r
    GH at 30 min versus GH peak

    Source sentences

    Summary
    An excellent correlation was observed between GH values at 30 min and GH peaks (r=0.972, p<0.0001).
    1 context sentence
    Summary · context
    A total of 83 subjects who suffered TBI at least one year before the study were administered GHRH 1 mug/kg iv plus GHRP-6 1 mug/kg iv at 0 min, and blood samples were obtained at regular intervals.

    In this study, GHRP-6 was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking GHRP-6.

  2. 02HumanNot a test of GHRP-6 aloneObservational studyOther

    In patients with traumatic brain injury, using GH at 30 min instead of the peak changed the classification in only 5 of 83 subjects.

    In plain wordsIn people with past brain injury, a single reading at 30 minutes changed the test result in only 5 of 83 people.

    Peptide
    GHRP-6
    Outcome
    Not applicableChange of biochemical classification using GH at 30 min instead of GH peak
    Study

    n = 83

    Outcome group
    Growth hormone and IGF-1 · Endocrine and hormones

    Measurements

    Subjects reclassified
    5 subjects
    of 83

    Source sentences

    Summary
    When comparing the 30-min GH values against the peaks, the biochemical classification changed only in 5 out of 83 subjects from normal GH secretion to uncertain.
    1 context sentence
    Summary · context
    A total of 83 subjects who suffered TBI at least one year before the study were administered GHRH 1 mug/kg iv plus GHRP-6 1 mug/kg iv at 0 min, and blood samples were obtained at regular intervals.

    In this study, GHRP-6 was a lab tool or a carrier, part of a mix, or the subject of a lab method. This result is not evidence about taking GHRP-6.

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, 12:58 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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