Evidence map›Paper›PMID 25202669›Full record

ArticleJournal of reproduction & infertility2014

Role of postnatal expression of fgfr1 and fgfr2 in testicular germ cells on spermatogenesis and fertility in mice.

Shengqiang Li, Zi-Jian Lan, Xian Li, Jing Lin, Zhenmin Lei

Open access · greenAbstract read
In one paragraph

Article in Journal of reproduction & infertility, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.6field-weighted citation impact, top 32% 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

6 citing papers in PubMed, 14 citations in OpenAlex.

  1. Review
  2. Article
  3. The Transcriptome of Pig Spermatozoa, and Its Role in Fertility.International journal of molecular sciences · 2020
    Article
  4. Article
  5. Article
  6. 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 2 institutions in 1 country.

Shengqiang LiDepartment of Obstetrics/Gynecology and Women's Health, University of Louisville, School of Medicine, Louisville, USA.
Zi-Jian LanDivision of Life Sciences, Alltech, Nicholasville, USA.
Xian LiDepartment of Obstetrics/Gynecology and Women's Health, University of Louisville, School of Medicine, Louisville, USA.
Jing LinDepartment of Obstetrics/Gynecology and Women's Health, University of Louisville, School of Medicine, Louisville, USA.
Zhenmin LeiDepartment of Obstetrics/Gynecology and Women's Health, University of Louisville, School of Medicine, Louisville, USA.
University of Louisville · USAlltech (United States) · US

Funding

The Mechanism of Cryptorchidism in LH Receptor Knockout AnimalsR01HD057501 · NICHD · UNIVERSITY OF LOUISVILLE · PI LEI, ZHENMIN · 2008 to 2012
$1.4M
NICHD NIH HHS R01 HD057501
6 · The paper itself

Abstract

backgroundFibroblast growth factor (FGF) signaling is thought to play diverse roles in the male reproductive system. However, its role in testicular cells for spermatogenesis and fertility remains unclear.

methodsIn this study, the expression and localization of Fgfr 1 (FGF Receptor) and Fgfr 2 in the postnatal mouse testes were examined by RT-PCR, Western blotting and immunohistochemistry. The in vivo function of each receptor in testicular germ cells was determined using germ cell-specific Fgfr mutant animals, Tex101-iCre;Fgfr (flox/flox) and Tex101-iCre;Fgfr (flox/flox) mice. The results were analyzed by Kruskal-Wallis test and Dunn's Post-test.

resultsBoth Fgfr1 and Fgfr2 were expressed in the testis throughout the entire postnatal development. Prominent immunostaining of these FGFRs was observed in interstitial and peritubular cells with little or no changes in all phases during postnatal development. Positive staining of these receptors was also detected in germ cells including elongated spermatids and spermatozoa. Germ cell-specific Fgfr1 or Fgfr2 mutant mice were viable with no developmental abnormalities in the testes and accessory sex organs. Fertility studies showed that the fecundity of both mutant mouse lines did not significantly differ from wild-type siblings (n=4, p>0.05). Further analysis indicated the presence of other Fgfrs in testicular germ cells including Fgfr 3, 4 and 5.

conclusionThe results demonstrated that Fgfr1 and 2 are expressed in all testicular cell types and that neither Fgfr1 nor Fgfr2 in testicular germ cells is essential for spermatogenesis and fertility. Future studies are needed to investigate the potential functional redundancy among five Fgfrs in male germ cells for spermatogenesis and fertility.

Indexed as

Conditional gene knockoutFertilityFGFFgfrSpermatogenesisTestis

Identifiers

PMID25202669
PMCPMC4138418
OpenAlexW2129578769

What OpenQuestion holds

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Registered trials

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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.