Evidence map›Paper›PMID 28859279›Full record

ArticleBiology of reproduction2017

The superovulated environment, independent of embryo vitrification, results in low birthweight in a mouse model.

Rachel Weinerman, Teri Ord, Marisa S Bartolomei, Christos Coutifaris, Monica Mainigi

Open access · bronzeAbstract read
In one paragraph

Article in Biology of reproduction, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
8.1field-weighted citation impact, top 3% 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

27 citing papers in PubMed, 52 citations in OpenAlex.

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  6. [Factors influencing the occurrence of small for gestational age at different degrees].Zhongguo dang dai er ke za zhi = Chinese journal of contemporary pediatrics · 2024
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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

5 authors at 2 institutions in 1 country.

Rachel WeinermanDivision of Reproductive Endocrinology and Infertility, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Teri OrdDivision of Reproductive Endocrinology and Infertility, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA.
Marisa S BartolomeiEpigenetics Program, Department of Cell and Developmental Biology, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Christos CoutifarisDivision of Reproductive Endocrinology and Infertility, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Monica MainigiDivision of Reproductive Endocrinology and Infertility, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
University of Pennsylvania · USUniversity Hospitals of Cleveland · US

Funding

REPRODUCTIVE SCIENTIST TRAINING PROGRAMK12HD000849 · NICHD · WASHINGTON UNIVERSITY · PI Danny J Schust · 1988 to 2026
$33.2M
Research Project 4: Epigenetic Regulation of Retrotransposon Silencing and Male Fertility in the MouseP50HD068157 · NICHD · UNIVERSITY OF PENNSYLVANIA · PI Suneeta Senapati · 2014 to 2026
$16.3M
6 · The paper itself

Abstract

Epidemiological studies suggest that babies born following in vitro fertilization (IVF) and fresh embryo transfer are of lower birthweight than babies born following frozen embryo transfer, although the mechanism responsible for this phenotype is not known. We developed a novel mouse model that isolates the independent effects of embryo freezing and the superovulated environment, which cannot be performed in humans. We transferred blastocysts that had been vitrified and warmed, mixed with with fresh blastocysts, into individual pseudopregnant recipients produced by either natural mating or mating following injection with equine chorionic gonadotropin and human chorionic gonadotropin and hCG (superovulation). We found that superovulation of the recipient dams led to significantly lower fetal weight at term while blastocyst vitrification had no significant effect on fetal weight (1.43 ± 0.24 g fresh-natural, 1.30 ± 0.28 g vitrified-natural vs. 1.09 ± 0.20 fresh-superovulated, 0.93 ± 0.23 g vitrified-superovulated, P < 0.0001). Doppler ultrasound revealed increased median umbilical artery resistance in the placentae of near-term dams exposed to superovulation compared to naturally mated dams (0.927 vs 0.904, P = 0.02). Additionally, placental microvascular density was lower in superovulated compared to naturally mated dams (1.24 × 10-3 vessel/micron vs 1.46 × 10-3 vessels/micron, P = 0.046). Gene expression profiling suggested alterations in fetal genes involved in glucorticoid regulation. These results suggest a potential mechanism for altered birthweight following superovulation in our model and may have implications for human IVF.

Indexed as

SuperovulationVitrificationAnimalsAnimals, NewbornBirth WeightCryopreservationEmbryo TransferFemaleGene Expression Regulation, DevelopmentalMaleMicePregnancyTranscriptomeassisted reproductive technologyblastocystgonadotropinsplacentavitrification

Identifiers

PMID28859279
PMCPMC6248797
OpenAlexW2733548904

What OpenQuestion holds

Textmetadata
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.