Evidence map›Paper›PMID 35501726›Full record

ArticleBMC pregnancy and childbirth2022

Leukocyte telomere dynamics across gestation in uncomplicated pregnancies and associations with stress.

Danielle M Panelli, Stephanie A Leonard, Ronald J Wong, Martin Becker, Jonathan A Mayo, Erica Wu, Anna I Girsen, Ian H Gotlib, Nima Aghaeepour, Maurice L Druzin and 3 more

Open access · goldAbstract read
In one paragraph

Article in BMC pregnancy and childbirth, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
1.4field-weighted citation impact, top 19% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 12 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Observational
  5. Article
  6. Article
  7. Article
  8. Mode of delivery predicts postpartum maternal leukocyte telomere length.European journal of obstetrics, gynecology, and reproductive biology · 2024
    Article
  9. Article
  10. Article
  11. Article
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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

13 authors at 1 institution in 1 country.

Danielle M PanelliDepartment of Obstetrics and Gynecology, Stanford University, 453 Quarry Road, Palo Alto, CA, 94304, USA. dpanelli@stanford.edu.
Stephanie A LeonardDepartment of Obstetrics and Gynecology, Stanford University, 453 Quarry Road, Palo Alto, CA, 94304, USA.
Ronald J WongDepartment of Pediatrics, Stanford University, Stanford, CA, USA.
Martin BeckerDepartment of Pediatrics, Stanford University, Stanford, CA, USA.
Jonathan A MayoDepartment of Pediatrics, Stanford University, Stanford, CA, USA.
Erica WuDepartment of Obstetrics and Gynecology, Stanford University, 453 Quarry Road, Palo Alto, CA, 94304, USA.
Anna I GirsenDepartment of Obstetrics and Gynecology, Stanford University, 453 Quarry Road, Palo Alto, CA, 94304, USA.
Ian H GotlibDepartment of Psychology, Stanford University, Stanford, CA, USA.
Nima AghaeepourDepartment of Pediatrics, Stanford University, Stanford, CA, USA.
Maurice L DruzinDepartment of Obstetrics and Gynecology, Stanford University, 453 Quarry Road, Palo Alto, CA, 94304, USA.
Gary M ShawDepartment of Pediatrics, Stanford University, Stanford, CA, USA.
David K StevensonDepartment of Pediatrics, Stanford University, Stanford, CA, USA.
Katherine BiancoDepartment of Obstetrics and Gynecology, Stanford University, 453 Quarry Road, Palo Alto, CA, 94304, USA.
Stanford University · US

Funding

Machine Learning for Integrative Modeling of the Immune System in Clinical SettingsR35GM138353 · NIGMS · STANFORD UNIVERSITY · PI AGHAEEPOUR, NIMA · 2020 to 2024
$2.2M
NIGMS NIH HHS R35 GM138353
6 · The paper itself

Abstract

backgroundShort leukocyte telomere length is a biomarker associated with stress and morbidity in non-pregnant adults. Little is known, however, about maternal telomere dynamics in pregnancy. To address this, we examined changes in maternal leukocyte telomere length (LTL) during uncomplicated pregnancies and explored correlations with perceived stress.

methodsIn this pilot study, maternal LTL was measured in blood collected from nulliparas who delivered live, term, singleton infants between 2012 and 2018 at a single institution. Participants were excluded if they had diabetes or hypertensive disease. Samples were collected over the course of pregnancy and divided into three time periods: < 20

resultsA total of 115 samples from 46 patients were analyzed. LTL (mean ± SD), expressed as telomere to single copy gene (T/S) ratios, were: 1.15 ± 0.26, 1.13 ± 0.23, and 1.07 ± 0.21 for Timepoints 1, 2, and 3, respectively. There were no significant differences in LTL between Timepoints 1 and 2 (LTL T/S change - 0.03 ± 0.26, p = 0.39); 2 and 3 (- 0.07 ± 0.29, p = 0.38) or Timepoints 1 and 3 (- 0.07 ± 0.21, p = 0.06). Participants who underwent cesareans had significantly shorter postpartum LTLs than those who delivered vaginally (T/S ratio: 0.94 ± 0.12 cesarean versus 1.12 ± 0.21 vaginal, p = 0.01). In secondary analysis, poor sleep quality was the main stress construct associated with shorter Timepoint 1 LTLs (p = 0.02) and shorter mean LTLs (p = 0.03).

conclusionsIn this cohort of healthy pregnancies, maternal LTLs did not significantly change across gestation and postpartum LTLs were shorter after cesarean than after vaginal birth. Significant associations between sleep quality and short LTLs warrant further investigation.

Indexed as

TelomereTelomere ShorteningAdultCohort StudiesFemaleHumansLeukocytesPilot ProjectsPregnancyLeukocyte telomere lengthMaternal mental healthPregnancyPsychosocial stressSleep

Identifiers

PMID35501726
PMCPMC9063069
OpenAlexW4225276433

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.