Skip to content

Study · Measured the body's own peptide · 1987

4 results

Immunoreactive delta sleep-inducing peptide in pituitary adrenocorticotropin/alpha-melanotropin cells and adrenal medullary cells of the pig.

Ekman R, Bjartell A, Ekblad E, Sundler F

Neuroendocrinology1 Apr 1987Cited by 16 (Europe PMC)

PMID3033539 (opens in a new tab)DOI10.1159/000124744 (opens in a new tab)PepBankPUB-03033539
Publisher pagePubMedAsk about this study
Jump to 4 results

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

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

Natural levels measured4

These results measure the body's own peptide. Nobody was given the peptide. They are not evidence about taking it. They are left out of key results, evidence counts and charts.

  1. 01LabEndogenous levelEx vivo tissueOther

    In pig pituitary and adrenal medulla, radioimmunoassay and immunocytochemistry showed DSIP-like immunoreactivity.

    In plain wordsIn pig tissue, the body's own DSIP-like material was found in the pituitary and the adrenal gland core.

    Peptide
    Delta sleep-inducing peptide (DSIP)
    Outcome
    Not applicableDSIP-like immunoreactivity in porcine pituitary and adrenal medulla
    Study

    pign: not reported in source

    Porcine pituitary and adrenal medulla tissue
    Outcome group
    Receptor activity and mechanism · Endocrine and hormones

    Source sentences

    Summary
    In the present study, DSIP-like immunoreactivity was demonstrated in the porcine pituitary and adrenal medulla using radioimmunoassay and immunocytochemistry.

    This result measures the body's own Delta sleep-inducing peptide (DSIP). Nobody was given the peptide. It is not evidence about taking it.

  2. 02LabEndogenous levelEx vivo tissueOther

    In the pig pituitary, DSIP-like material was present in a subpopulation of cells that store adrenocorticotropin and alpha-melanotropin.

    In plain wordsIn pig pituitary, the body's own DSIP-like material was found in a subset of cells that make two other hormones.

    Peptide
    Delta sleep-inducing peptide (DSIP)
    Outcome
    Not applicablePituitary cell type holding DSIP-like material
    Study

    pign: not reported in source

    Porcine pituitary and adrenal medulla tissue
    Outcome group
    Receptor activity and mechanism · Endocrine and hormones

    Source sentences

    Summary
    In the pituitary, the DSIP-like material was present in a subpopulation of the cells storing adrenocorticotropin and alpha-melanotropin.

    This result measures the body's own Delta sleep-inducing peptide (DSIP). Nobody was given the peptide. It is not evidence about taking it.

  3. 03LabEndogenous levelEx vivo tissueOther

    In the pig adrenal medulla, DSIP-immunoreactive cells were identical with a major population of noradrenaline-storing cells.

    In plain wordsIn the pig adrenal gland core, the body's own DSIP-like material was found in cells that store noradrenaline.

    Peptide
    Delta sleep-inducing peptide (DSIP)
    Outcome
    Not applicableAdrenal medullary cell type holding DSIP-like material
    Study

    pign: not reported in source

    Porcine pituitary and adrenal medulla tissue
    Outcome group
    Receptor activity and mechanism · Endocrine and hormones

    Source sentences

    Summary
    The DSIP immunoreactive cells in the adrenal medulla were identical with a major population of the noradrenaline-storing cells.

    This result measures the body's own Delta sleep-inducing peptide (DSIP). Nobody was given the peptide. It is not evidence about taking it.

  4. 04LabEndogenous levelEx vivo tissueOther

    In pig tissue extracts, the major peak of DSIP-like immunoreactivity did not coelute with synthetic DSIP on HPLC.

    In plain wordsIn pig tissue, the natural DSIP-like material did not behave exactly like synthetic DSIP in a lab separation test.

    Peptide
    Delta sleep-inducing peptide (DSIP)
    Outcome
    Not applicableHPLC identity of DSIP-like material versus synthetic DSIP
    Study

    pign: not reported in source

    Porcine pituitary and adrenal medulla tissue
    Outcome group
    Receptor activity and mechanism · Endocrine and hormones

    Source sentences

    Summary
    High-performance liquid chromatography of tissue extracts revealed one major peak of DSIP-like immunoreactivity which did not coelute with synthetic DSIP.

    This result measures the body's own Delta sleep-inducing peptide (DSIP). Nobody was given the peptide. It is not evidence about taking it.

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

    10 Oct 2026, 09:43 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.

PepBank is a research reference. Talk to a doctor before you use any peptide.