Evidence map›Paper›PMID 34564304›Full record

ArticleMethods and protocols2021

Time Mating Guinea Pigs by Monitoring Changes to the Vaginal Membrane throughout the Estrus Cycle and with Ultrasound Confirmation.

Rebecca L Wilson, Kristin Lampe, Brad J Matushewski, Timothy R H Regnault, Helen N Jones

Open access · goldAbstract read
In one paragraph

Article in Methods and protocols, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
0.5field-weighted citation impact, top 39% 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

10 citing papers in PubMed, 11 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. PlacentaAmerican journal of physiology. Endocrinology and metabolism · 2025
    Article
  7. Hallmarks of uterine receptivity predate placental mammals.bioRxiv : the preprint server for biology · 2024
    Article
  8. Article
  9. Article
  10. Article
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

5 authors at 3 institutions in 2 countries.

Rebecca L WilsonCenter for Research in Perinatal Outcomes, College of Medicine, University of Florida, Gainesville, FL 32610, USA.
Kristin LampeCenter for Fetal and Placental Research, Cincinnati Children's Hospital and Medical Center, Cincinnati, OH 45229, USA.
Brad J MatushewskiDepartment of Kinesiology, Western University, London, ON N6A 5B9, Canada.
Timothy R H RegnaultDepartments of Physiology and Pharmacology, and Obstetrics and Gynaecology, Schulich School of Medicine and Dentistry, Western University, London, ON N6A 5B9, Canada.ORCID 0000-0003-1930-8358
Helen N JonesCenter for Research in Perinatal Outcomes, College of Medicine, University of Florida, Gainesville, FL 32610, USA.
University of Florida · USWestern University · CACincinnati Children's Hospital Medical Center · US

Funding

Placental-specific therapy for fetal growth restrictionR01HD090657 · NICHD · UNIVERSITY OF FLORIDA · PI HELEN N JONES · 2017 to 2026
$2.6M
Eunice Kennedy Shriver National Institute of Child Health and Human Development R01HD090657
6 · The paper itself

Abstract

One of the greatest challenges to the development and implementation of pregnancy therapeutics is the ability to rigorously test treatments in clinically relevant animal models. Guinea pigs offer a unique advantage in studying the placenta, fetal development, and reproductive health as they have similar developmental milestones to humans, both throughout gestation and following birth. Tracking the guinea pig estrus cycle is imperative to ensuring appropriately timed mating and can be performed by monitoring the guinea pig vaginal membrane. Here, we describe a methodology to efficiently and accurately time mate guinea pigs, and provide a picture representation of changes to the guinea pig vaginal membrane throughout the estrus cycle. Utilization of this monitoring enabled a 100% pregnancy success rate on the first mating attempt in a cohort of five guinea pigs. This approach, along with early pregnancy ultrasounds as a secondary method to confirm pregnancy, offers a reliable approach to timed mating in the guinea pig.

Indexed as

guinea pigmethodologypregnancyreproductiontime mate

Identifiers

PMID34564304
PMCPMC8482275
OpenAlexW3197397999

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.