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Study · Not a test of the peptide alone · 2012

3 results

Cognitive performance in older males is associated with growth hormone secretion.

Quik EH, Conemans EB, Valk GD, Kenemans JL, Koppeschaar HP, van Dam PS

Neurobiology of aging21 May 2010Cited by 11 (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 study3

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

Studies that did not test the peptide alone3

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 elderly males, GH secretion assessed with a GHRH-GHRP‑6 test correlated significantly with target detections in the selection-potential task.

    In plain wordsIn elderly men, growth hormone secretion measured with a combined hormone test linked to target detection performance.

    Peptide
    GHRP-6
    Outcome
    Direction not reportedTarget detections and stimulated GH secretion
    Study

    n = 17

    Outcome group
    Cognition and memory · Nervous system and cognition

    Source sentences

    Summary
    GH secretion was significantly correlated with target detections and speed of responding in the selection-potential task.
    1 context sentence
    Summary · context
    GH secretion of 17 elderly male participants was assessed by a GHRH-GHRP-6 test.

    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 elderly males, GH secretion assessed with a GHRH-GHRP‑6 test correlated significantly with response speed in the selection-potential task.

    In plain wordsIn elderly men, growth hormone secretion measured with a combined hormone test linked to response speed.

    Peptide
    GHRP-6
    Outcome
    Direction not reportedResponse speed and stimulated GH secretion
    Study

    n = 17

    Outcome group
    Cognition and memory · Nervous system and cognition

    Source sentences

    Summary
    GH secretion was significantly correlated with target detections and speed of responding in the selection-potential task.
    1 context sentence
    Summary · context
    GH secretion of 17 elderly male participants was assessed by a GHRH-GHRP-6 test.

    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.

  3. 03HumanNot a test of GHRP-6 aloneObservational studyOther

    In elderly males, peak GH assessed with a GHRH-GHRP‑6 test correlated significantly with letter-digit span test performance.

    In plain wordsIn elderly men, peak growth hormone measured with a combined hormone test linked to letter-digit span performance.

    Peptide
    GHRP-6
    Outcome
    Direction not reportedLetter-digit span performance and stimulated GH peak
    Study

    n = 17

    Outcome group
    Cognition and memory · Nervous system and cognition

    Source sentences

    Summary
    Furthermore, GH peak was significantly correlated with the performance letter-digit span test.
    1 context sentence
    Summary · context
    GH secretion of 17 elderly male participants was assessed by a GHRH-GHRP-6 test.

    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

    21 Oct 2026, 15:58 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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