Evidence map›Paper›PMID 34326815›Full record

ArticleFrontiers in endocrinology2021

Decreased piRNAs in Infertile Semen Are Related to Downregulation of Sperm MitoPLD Expression.

Yeting Hong, Yanqian Wu, Jianbin Zhang, Chong Yu, Lu Shen, Hanxiao Chen, Linjie Chen, Xue Zhou, Fang Gao

Open access · goldAbstract read
In one paragraph

Article in Frontiers in endocrinology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
4.2field-weighted citation impact, top 6% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 29 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Role of Seminal Exosomes in Reproduction.Journal of cellular physiology · 2025
    Review
  5. Review
  6. Review
  7. Article
  8. Single Sperm RNA signatures reveal MicroRNA biomarkers for male subfertility.Journal of assisted reproduction and genetics · 2024
    Article
  9. Article
  10. Small RNAs, spermatogenesis, and male infertility: a decade of retrospect.Reproductive biology and endocrinology : RB&E · 2023
    Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Review
  16. Article
  17. Review
  18. 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

9 authors at 4 institutions in 1 country.

Yeting HongCollege of Laboratory Medicine, Hangzhou Medical College, Hangzhou, China.
Yanqian WuCollege of Laboratory Medicine, Hangzhou Medical College, Hangzhou, China.
Jianbin ZhangZhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China.
Chong YuZhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China.
Lu ShenCollege of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China.
Hanxiao ChenCollege of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China.
Linjie ChenCollege of Laboratory Medicine, Hangzhou Medical College, Hangzhou, China.
Xue ZhouDepartment of Andrology, Nanjing Drum Tower Hospital, Affiliated Hospital of Nanjing University Medical School, Nanjing, China.
Fang GaoZhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China.
Hangzhou Medical College · CNWenzhou Medical University · CNZhejiang Provincial People's Hospital · CNNanjing Drum Tower Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Currently, the molecular mechanisms underlining male infertility are still poorly understood. Our previous study has demonstrated that PIWI-interacting RNAs (piRNAs) are downregulated in seminal plasma of infertile patients and can serve as molecular biomarkers for male infertility. However, the source and mechanism for the dysregulation of piRNAs remain obscure. In this study, we found that exosomes are present in high concentrations in human seminal plasma and confirmed that piRNAs are predominantly present in the exosomal fraction of seminal plasma. Moreover, we showed that piRNAs were significantly decreased in exosomes of asthenozoospermia patients compared with normozoospermic men. By systematically screening piRNA profiles in sperms of normozoospermic men and asthenozoospermia patients, we found that piRNAs were parallelly reduced during infertility. At last, we investigated the expression of some proteins that are essential for piRNAs biogenesis in sperms and therefore identified a tight correlation between the levels of spermatozoa piRNA and MitoPLD protein, suggesting that the loss-of-function of MitoPLD could cause a severe defect of piRNA accumulation in sperms. In summary, this study identified a parallel reduction of piRNAs and MitoPLD protein in sperms of asthenozoospermia patients, which may provide pathophysiological clues about sperm motility.

Indexed as

AdultAsthenozoospermiaCase-Control StudiesDown-RegulationExosomesGene Expression ProfilingHigh-Throughput Nucleotide SequencingHumansInfertility, MaleMaleMitochondrial ProteinsPhospholipase DRNA, Small InterferingSemenSemen AnalysisSequence Analysis, RNAMitochondrial ProteinsmitoPLD protein, humanPhospholipase DRNA, Small InterferingexosomeinfertilityMitoPLDpiRNAssperm

Identifiers

PMID34326815
PMCPMC8315149
OpenAlexW3182743820

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.