Evidence map›Paper›PMID 24798705›Full record

ArticleHormones and behavior2014

Pregnancy-induced changes in ultradian rhythms persist in circadian arrhythmic Siberian hamsters.

Z Yan Wang, Erin J Cable, Irving Zucker, Brian J Prendergast

Open access · greenAbstract read
In one paragraph

Article in Hormones and behavior, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.4field-weighted citation impact, top 45% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 7 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 1 country.

Z Yan WangCommittee on Neurobiology, University of Chicago, Chicago, IL 60637, USA. Electronic address: zyw@uchicago.edu.
Erin J CableDepartment of Psychology, University of Chicago, Chicago, IL 60637, USA.
Irving ZuckerDepartment of Psychology, University of California, Berkeley, CA 94720, USA; Department of Integrative Biology, University of California, Berkeley, CA 94720, USA.
Brian J PrendergastCommittee on Neurobiology, University of Chicago, Chicago, IL 60637, USA; Department of Psychology, University of Chicago, Chicago, IL 60637, USA.
University of Chicago · USUniversity of California, Berkeley · US

Funding

Processing Photoperiod Information by the Immune SystemR01AI067406 · NIAID · UNIVERSITY OF CHICAGO · PI PRENDERGAST, BRIAN J · 2005 to 2015
$3.2M
NIAID NIH HHS R01 AI067406
6 · The paper itself

Abstract

The impact of pregnancy and lactation on ultradian rhythms (URs) and circadian rhythms (CRs) of locomotor activity was assessed in circadian rhythmic and arrhythmic Siberian hamsters maintained in a long-day photoperiod (16h light/day). Progressive decrements in CR robustness and amplitude over the course of gestation were accompanied by enhanced URs. Dark-phase UR period and amplitude increased during early gestation and complexity and robustness increased during late gestation. The persistence of pregnancy-associated enhancements of URs in circadian arrhythmic (ARR) hamsters suggests that reproductive modulation of the UR waveform is not dependent on coherent circadian organization. The increased incidence of dark-phase URs appeared more rapidly in ARR dams than entrained (ENTR) dams. Throughout gestation, the percentage of dams with dark-phase URs was significantly greater in the ARR group. Gestational increases in UR complexity and robustness emerged earlier and were greater in ARR than ENTR dams. The attenuation of CRs during lactation is correlated with increased expression of URs. Relaxation of circadian control of the dam's behavior may increase fitness by permitting more efficient interactions with circadian arrhythmic pups.

Indexed as

Activity CyclesAnimalsCircadian RhythmCricetinaeDarknessFemaleLightMotor ActivityPhenotypePhodopusPregnancySexual Behavior, AnimalArrhythmiaBiological rhythmsLactationMaternal behaviorReproductionSuprachiasmatic nucleus

Identifiers

PMID24798705
PMCPMC4372156
OpenAlexW2054015996

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.