Evidence map›Paper›PMID 18448840›Full record

ArticleBiology of reproduction2008

Age-dependent loss of sperm production in mice via impaired lysophosphatidic acid signaling.

Xiaoqin Ye, Michael K Skinner, Grace Kennedy, Jerold Chun

Abstract read
In one paragraph

Article in Biology of reproduction, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
–field-weighted citation impact
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

38 citing papers in PubMed.

  1. Sexual Selection as a Driver of Shared Neural and Reproductive Mechanisms.International journal of molecular sciences · 2026
    Review
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Testicular aging, male fertility and beyond.Frontiers in endocrinology · 2022
    Review
  8. Sperm Lipid Markers of Male Fertility in Mammals.International journal of molecular sciences · 2021
    Review
  9. Lysophosphatidic acid (LPA) as a modulator of plasma membrane CaJournal of physiology and biochemistry · 2021
    Article
  10. Article
  11. Review
  12. Article
  13. Review
  14. Review
  15. Review
  16. Article
  17. The Autotaxin-Lysophosphatidic Acid Axis Modulates Histone Acetylation and Gene Expression during Oligodendrocyte Differentiation.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2015
    Article
  18. Article
  19. Article
  20. Comparative analyses of lysophosphatidic acid receptor-mediated signaling.Cellular and molecular life sciences : CMLS · 2015
    Review
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

4 authors.

Xiaoqin YeDepartment of Molecular Biology, The Helen L. Dorris Child and Adolescent Neuropsychiatric Disorder Institute, The Scripps Research Institute, La Jolla, California 92037, USA.
Michael K Skinner
Grace Kennedy
Jerold Chun

Funding

Interactions of LPA and prostaglandins in implantationR01HD050685 · NICHD · SCRIPPS RESEARCH INSTITUTE, THE · PI CHUN, JEROLD · 2006 to 2010
$1.9M
NICHD NIH HHS R01 HD050685
6 · The paper itself

Abstract

Approximately half of all infertility cases can be attributed to male reproductive dysfunction for which low sperm count is a major contributing factor. The current study identified receptor-mediated lysophosphatidic acid (LPA) signaling as a new molecular component influencing male fertility. LPA is a small signaling phospholipid, the effects of which are mediated through at least five G protein-coupled receptors, named LPA 1-5. LPA1/2/3, but not LPA4/5, show high expression in mouse testis. Mice deficient in LPA1/2/3 showed a testosterone-independent reduction of mating activity and sperm production, with an increased prevalence of azoospermia in aging animals. A significant increase of germ cell apoptosis also was observed in testes. Germ cell apoptosis led to a reduction in germ cell proliferation. These data demonstrate a novel in vivo function for LPA signaling as a germ cell survival factor during spermatogenesis.

Indexed as

Age FactorsAnimalsCell ProliferationFemaleLysophospholipidsMaleMiceMice, Inbred C57BLMice, KnockoutMitogen-Activated Protein Kinase 3PhosphorylationReceptors, Lysophosphatidic AcidSexual Behavior, AnimalSignal TransductionSpermatogenesisSpermatozoalysophosphatidic acidLysophospholipidsMitogen-Activated Protein Kinase 3Receptors, Lysophosphatidic AcidTestosterone

Identifiers

PMID18448840
PMCPMC2574971

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.