Evidence map›Paper›PMID 30825879›Full record

ArticleReproductive biology and endocrinology : RB&E2019

Physiological and anatomical aspects of the reproduction of mice with reduced Syndecan-1 expression.

Christina Gougoula, Alexandra P Bielfeld, Sarah J Pour, Jan-S Krüssel, Martin Götte, W Peter M Benten, Dunja M Baston-Büst

Open access · goldAbstract read
In one paragraph

Article in Reproductive biology and endocrinology : RB&E, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.5field-weighted citation impact, top 41% 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

4 citing papers in PubMed, 10 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

7 authors at 3 institutions in 1 country.

Christina GougoulaCentral Unit for Animal Research and Animal Welfare Affairs (ZETT) of the Heinrich-Heine-University of Düsseldorf, Universitätsstraße 1, 40225, Düsseldorf, Germany.
Alexandra P BielfeldDepartment of OB/GYN and REI (UniKiD), University Hospital Düsseldorf, Moorenstraße 5, 40225, Düsseldorf, Germany.
Sarah J PourDepartment of OB/GYN and REI (UniKiD), University Hospital Düsseldorf, Moorenstraße 5, 40225, Düsseldorf, Germany.
Jan-S KrüsselDepartment of OB/GYN and REI (UniKiD), University Hospital Düsseldorf, Moorenstraße 5, 40225, Düsseldorf, Germany.
Martin GötteDepartment of Gynecology and Obstetrics, Münster University Hospital, Albert-Schweitzer-Campus 1, 48149, Münster, Germany.
W Peter M BentenCentral Unit for Animal Research and Animal Welfare Affairs (ZETT) of the Heinrich-Heine-University of Düsseldorf, Universitätsstraße 1, 40225, Düsseldorf, Germany.
Dunja M Baston-BüstDepartment of OB/GYN and REI (UniKiD), University Hospital Düsseldorf, Moorenstraße 5, 40225, Düsseldorf, Germany. baston-buest@unikid.de.ORCID http://orcid.org/0000-0003-4934-1351
Düsseldorf University Hospital · DEHeinrich Heine University Düsseldorf · DEUniversity Hospital Münster · DE

Funding

Deutsche Forschungsgemeinschaft HE 3544/2-2 and 2-3
6 · The paper itself

Abstract

backgroundSyndecan-1 is a heparan sulfate proteoglycan acting as a co-receptor for cytokines and growth factors mediating developmental, immunological and angiogenic processes. In human, the uteroplacental localization of Syndecan-1 and its reduced expression in pregnancy-associated pathologies, such as the intrauterine growth restriction, suggests an influence of Syndecan-1 in embryo-maternal interactions. The aim of the present study was to identify the effect of a reduced expression of Syndecan-1 on the reproductive phenotype of mice and their progenies.

methodsReproductive characteristics have been investigated using animals with reduced Syndecan-1 and their wildtype controls after normal mating and after vice versa embryo transfers. Female mice were used to measure the estrus cycle length and the weight gain during pregnancy, as well as for histological examination of ovaries. Male mice were examined for the concentration, motility, viability and morphology of spermatozoa. Organs like heart, lung, liver, kidney, spleen, brain and ovaries or testes and epididymis of 6-month-old animals were isolated and weighed. Statistical analyses were performed using two-tailed students t-test with P < .05 and P < .02, chi square test (P < .05) and Fisher's Exact Test (P < .05). A linear and a non-linear mixed-effects model were generated to analyze the weight gain of pregnant females and of the progenies.

resultsFocusing on the pregnancy outcome, the Syndecan-1 reduced females gave birth to larger litters. However, regarding the survival of the offspring, a higher percentage of pups with less Syndecan-1 died during the first postnatal days. Even though the ovaries and the testes of Syndecan-1 reduced mice showed no histological differences and the ovaries showed a similar number of primary and secondary follicles and corpora lutea, the spermatozoa of Syndecan-1 reduced males showed more tail and midpiece deficiencies. Concerning the postnatal and juvenile development the pups with reduced Syndecan-1 expression remained lighter and smaller regardless whether carried by mothers with reduced Syndecan-1 or wildtype foster mothers. With respect to anatomical differences kidneys of both genders as well as testes and epididymis of male mice with reduced syndecan-1 expression weighed less compared to controls.

conclusionsThese data reveal that the effects of Syndecan-1 reduction are rather genotype- than parental-dependent.

Indexed as

AnimalsAnimals, NewbornBody WeightEstrusFemaleGenotypeHumansLitter SizeMaleMice, 129 StrainMice, Inbred C57BLMice, KnockoutMice, TransgenicPregnancyReproductionSpermatozoaSyndecan-1CycleDevelopmentEmbryo implantationProteoglycanSpermSyndecans

Identifiers

PMID30825879
PMCPMC6397749
OpenAlexW2924757331

What OpenQuestion holds

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LicenceCC BY
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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.