Skip to content

Study · Measured the body's own peptide · 2026

4 results

Humanin as a Molecular Indicator of Semen Quality and Cryotolerance in Crossbred Cattle.

Gemeda AE, Singh M, Katiyar R, Kumar A, Pande M, Patra MK, Mathesh K, Srivastava N, Ghosh SK

Reproduction in domestic animals = Zuchthygiene1 Jun 2026

PMID42223320 (opens in a new tab)DOI10.1111/rda.70240 (opens in a new tab)PepBankPUB-42223320
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. 01AnimalEndogenous levelAnimal study (in vivo)Other

    In crossbred bull sperm, immunofluorescence showed humanin in the neck and upper midpiece regions.

    In plain wordsIn bull sperm, natural humanin was found in the neck and upper midpiece regions.

    Peptide
    Humanin
    Outcome
    Not applicableHumanin location in sperm
    Study

    cattle (Vrindavani crossbred bulls)n = 49

    Bull ejaculates
    Outcome group
    Sex hormones and fertility · Reproductive and sexual health

    Source sentences

    Summary
    Immunofluorescence assays revealed humanin in the neck and upper midpiece regions of sperm.
    1 context sentence
    Summary · context
    For this, a total of 49 ejaculates were collected from three Vrindavani crossbred bulls and were evaluated for volume, individual progressive motility (IPM), abnormality, and sperm concentration.

    This result measures the body's own Humanin. Nobody was given the peptide. It is not evidence about taking it.

  2. 02AnimalEndogenous levelAnimal study (in vivo)Other

    In crossbred bulls, seminal plasma humanin was significantly higher in normozoospermic ejaculates than in other groups.

    In plain wordsIn bulls, natural humanin in semen was higher in ejaculates with normal sperm counts and motility than in other groups.

    Peptide
    Humanin
    Outcome
    IncreaseSeminal plasma humanin by semen quality category
    Study

    cattle (Vrindavani crossbred bulls)n = 49

    Bull ejaculates
    Comparator
    Oligozoospermic, asthenozoospermic and oligoasthenozoospermic ejaculates
    Outcome group
    Sex hormones and fertility · Reproductive and sexual health

    Source sentences

    Summary
    Humanin levels in seminal plasma were significantly higher (p < 0.05) in normozoospermic individuals than in other groups.
    1 context sentence
    Summary · context
    The ejaculates were grouped into four categories, that is normozoospermia, oligozoospermia, asthenozoospermia and oligoasthenozoospermia, based on sperm concentration and IPM.

    This result measures the body's own Humanin. Nobody was given the peptide. It is not evidence about taking it.

  3. 03AnimalEndogenous levelAnimal study (in vivo)Other

    In crossbred bulls, seminal plasma humanin was positively and significantly correlated with sperm concentration and individual progressive motility.

    In plain wordsIn bulls, natural humanin in semen was linked to higher sperm concentration and better sperm motility.

    Peptide
    Humanin
    Outcome
    Not applicableCorrelation of seminal plasma humanin with sperm concentration and progressive motility
    Study

    cattle (Vrindavani crossbred bulls)n = 49

    Bull ejaculates
    Outcome group
    Sex hormones and fertility · Reproductive and sexual health

    Source sentences

    Summary
    Humanin levels in seminal plasma were positively and significantly correlated with sperm concentration and individual progressive motility (p < 0.05).

    This result measures the body's own Humanin. Nobody was given the peptide. It is not evidence about taking it.

  4. 04AnimalEndogenous levelAnimal study (in vivo)Other

    In normozoospermic bull ejaculates, seminal plasma humanin was significantly higher in good freezable than in poor freezable ejaculates.

    In plain wordsIn bulls, natural humanin in semen was higher in ejaculates that froze well than in those that froze poorly.

    Peptide
    Humanin
    Outcome
    IncreaseSeminal plasma humanin in good versus poor freezable ejaculates
    Study

    cattle (Vrindavani crossbred bulls)n = 28

    Bull ejaculates
    Comparator
    Poor freezable ejaculates
    Outcome group
    Sex hormones and fertility · Reproductive and sexual health

    Source sentences

    Summary
    Humanin level in the seminal plasma of good freezable ejaculates was significantly (p < 0.05) higher than that of poor freezable ejaculates.
    1 context sentence
    Summary · context
    Out of 28 normozoospermia ejaculates, 19 ejaculates (67.86%) were categorized as good freezable, and nine ejaculates (32.14%) were grouped as poor freezable.

    This result measures the body's own Humanin. 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

    13 Oct 2026, 21:44 UTC

    Study results updated

  2. Version 1

    13 Oct 2026, 16:31 UTC

    First added · source update from Europe PMC

Subjects

Terms as the source lists them.

Publication types

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