Evidence map›Paper›PMID 21989093›Full record

ArticleHuman reproduction (Oxford, England)2011

A survey of small RNAs in human sperm.

Stephen A Krawetz, Adele Kruger, Claudia Lalancette, Rebecca Tagett, Ester Anton, Sorin Draghici, Michael P Diamond

Open access · bronzeAbstract read
In one paragraph

Article in Human reproduction (Oxford, England), 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 166 papers.

0numbers the graph read from it
0cells of the map it votes in
166citing papers in PubMed
10.9field-weighted citation impact, top 1% 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

166 citing papers in PubMed, 402 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Unravelling male infertility through epigenetics: present understanding and future challenges.Mammalian genome : official journal of the International Mammalian Genome Society · 2026
    Review
  7. Methods for Investigating the Sperm Epigenome.Advances in experimental medicine and biology · 2026
    Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Sperm abnormality: Differential expression of microRNAs.Journal of assisted reproduction and genetics · 2025
    Review
  13. Review
  14. Article
  15. Article
  16. The composition of human sperm sncRNAome: a cross-country small RNA profiling.Reproductive biology and endocrinology : RB&E · 2025
    Article
  17. Review
  18. Review
  19. Review
  20. Article

106 more citing papers are in PubMed but not listed here.

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 2 institutions in 2 countries.

Stephen A KrawetzCenter for Molecular Medicine and Genetics, Wayne State University School of Medicine, Detroit, MI, USA. steve@compbio.med.wayne.edu
Adele Kruger
Claudia Lalancette
Rebecca Tagett
Ester Anton
Sorin Draghici
Michael P Diamond
Wayne State University · USUniversitat Autònoma de Barcelona · ES

Funding

GENETIC MECHANISMS THAT POTENTIATE HUMAN SPERMATOGENESISR01HD036512 · NICHD · WAYNE STATE UNIVERSITY · PI KRAWETZ, STEPHEN A · 1999 to 2009
$2.1M
NICHD NIH HHS HD36512
6 · The paper itself

Abstract

backgroundThere has been substantial interest in assessing whether RNAs (mRNAs and sncRNAs, i.e. small non-coding) delivered from mammalian spermatozoa play a functional role in early embryo development. While the cadre of spermatozoal mRNAs has been characterized, comparatively little is known about the distribution or function of the estimated 24,000 sncRNAs within each normal human spermatozoon.

methodsRNAs of <200 bases in length were isolated from the ejaculates from three donors of proved fertility. RNAs of 18-30 nucleotides in length were then used to construct small RNA Digital Gene Expression libraries for Next Generation Sequencing. Known sncRNAs that uniquely mapped to a single location in the human genome were identified.

resultsBioinformatic analysis revealed the presence of multiple classes of small RNAs in human spermatozoa. The primary classes resolved included microRNA (miRNAs) (≈ 7%), Piwi-interacting piRNAs (≈ 17%), repeat-associated small RNAs (≈ 65%). A minor subset of short RNAs within the transcription start site/promoter fraction (≈ 11%) frames the histone promoter-associated regions enriched in genes of early embryonic development. These have been termed quiescent RNAs.

conclusionsA complex population of male derived sncRNAs that are available for delivery upon fertilization was revealed. Sperm miRNA-targeted enrichment in the human oocyte is consistent with their role as modifiers of early post-fertilization. The relative abundance of piRNAs and repeat-associated RNAs suggests that they may assume a role in confrontation and consolidation. This may ensure the compatibility of the genomes at fertilization.

Indexed as

Computational BiologyHumansMaleMicroRNAsRNA, Small InterferingRNA, Small UntranslatedSequence Analysis, RNASpermatozoaMicroRNAsRNA, Small InterferingRNA, Small Untranslated

Identifiers

PMID21989093
PMCPMC3212879
OpenAlexW2138052059

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.