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Study · Animal study (in vivo) · tree shrew (tupaia belangeri chinensis) · 1990

2 results

[Effects of simulated space rhythm (L:D = 0.75h:0.75h) on circadian rhythm in tree shrews (Tupaia belangeri chinensis)].

Li HY, Liu SY

Sheng li xue bao : [Acta physiologica Sinica]1 Oct 1990

PMID2278004 (opens in a new tab)PepBankPUB-02278004
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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

2 results from studies that gave the peptide. No result from this study comes from people.

  1. 01AnimalAnimal study (in vivo)Efficacy outcome

    In tree shrews under simulated space rhythm, Asp5-alpha-DSIP did not prevent the basic disturbance of circadian rhythm.

    In plain wordsIn tree shrews, DSIP given around a simulated space light cycle did not stop the disturbance of the body clock.

    Peptide
    Delta sleep-inducing peptide (DSIP)
    Outcome
    No significant changeDisturbance of circadian rhythm by space rhythm
    Study

    tree shrew (Tupaia belangeri chinensis)n: not reported in source

    circadian rhythm disturbed by simulated space rhythm
    Outcome group
    Sleep · Sleep
    Studied dose
    30 micrograms/kg · intraperitoneal · 5 daysAs given in this study (tree shrew (Tupaia belangeri chinensis)).

    Source sentences

    Summary
    Experimental results also demonstrated that consecutive administration of Asp5-alpha-DSIP (30 micrograms/kg, i.p.) for 5 days (2 days before and 3 days during space rhythm) did not prevent the basic disturbance of circadian rhythm of Tupaia belangeri chinensis caused by the space rhythm (L:D = 0.75h:0.75h).
    1 context sentence
    Summary · context
    The present study was undertaken to investigate the effects of simulated space rhythm (L:D = 0.75 h:0.75 h) at this altitude on circadian rhythm in tree shrews (Tupaia belangeri chinensis) and the effects of endogenous sleep inducing neuropeptide Asp5-alpha-DSIP on the space-rhythm-entrained circadian rhythm.
  2. 02AnimalAnimal study (in vivo)Efficacy outcome

    In tree shrews given Asp5-alpha-DSIP, total 24-h motor activity showed no decrease, or even some enhancement, during space rhythm or after its cessation.

    In plain wordsIn tree shrews given DSIP, total daily movement did not drop and sometimes rose during or after the simulated space light cycle.

    Peptide
    Delta sleep-inducing peptide (DSIP)
    Outcome
    MixedTotal 24-h motor activity during and after space rhythm
    Study

    tree shrew (Tupaia belangeri chinensis)n: not reported in source

    circadian rhythm disturbed by simulated space rhythm
    Outcome group
    Sleep · Sleep
    Studied dose
    30 micrograms/kg · intraperitoneal · 5 daysAs given in this study (tree shrew (Tupaia belangeri chinensis)).

    Source sentences

    Summary
    Nevertheless, no decrease or even some enhancement of the total amount of 24th motor activity was observed during space rhythm or after its cessation.
    2 context sentences
    Summary · context
    consecutive administration of Asp5-alpha-DSIP (30 micrograms/kg, i.p.) for 5 days
    Summary · context
    The present study was undertaken to investigate the effects of simulated space rhythm (L:D = 0.75 h:0.75 h) at this altitude on circadian rhythm in tree shrews (Tupaia belangeri chinensis) and the effects of endogenous sleep inducing neuropeptide Asp5-alpha-DSIP on the space-rhythm-entrained circadian rhythm.

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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, 17:28 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.

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