Evidence map›Paper›PMID 16432229›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2006

Active digestion of sperm mitochondrial DNA in single living sperm revealed by optical tweezers.

Yoshiki Nishimura, Tomoya Yoshinari, Kiyoshi Naruse, Takeshi Yamada, Kazuyoshi Sumi, Hiroshi Mitani, Tetsuya Higashiyama, Tsuneyoshi Kuroiwa

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed, 1 pooled it
–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

53 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Article
  6. Analysis of mtDNA Methylation.Methods in molecular biology (Clifton, N.J.) · 2026
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  8. Review
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  17. Review
  18. Semi-in vitro detection of MgScientific reports · 2022
    Article
  19. Article
  20. Mitochondrial DNA in forensic use.Emerging topics in life sciences · 2021
    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

8 authors.

Yoshiki NishimuraDepartment of Biological Sciences, Graduate School of Science, University of Tokyo, Hongo 7-3-1, Tokyo 113-0033, Japan. yn37@cornell.edu
Tomoya Yoshinari
Kiyoshi Naruse
Takeshi Yamada
Kazuyoshi Sumi
Hiroshi Mitani
Tetsuya Higashiyama
Tsuneyoshi Kuroiwa

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In almost all eukaryotes, mitochondrial (mt) genes are transmitted to progeny mainly from the maternal parent. The most popular explanation for this phenomenon is simple dilution of paternal mtDNA, because the paternal gametes (sperm) are much smaller than maternal gametes (egg) and contribute a limited amount of mitochondria to the progeny. Recently, this simple explanation has been challenged in several reports that describe the active digestion of sperm mtDNA, down-regulation of mtDNA replication in sperm, and proteolysis of mitochondria triggered by ubiquitination. In this investigation, we visualized mt nucleoids in living sperm by using highly sensitive SYBR green I vital staining. The ability to visualize mt nucleoids allowed us to clarify that the elimination of sperm mtDNA upon fertilization is achieved through two steps: (i) gradual decrease of mt nucleoid numbers during spermatogenesis and (ii) rapid digestion of sperm mtDNA just after fertilization. One notable point is that the digestion of mtDNA is achieved before the complete destruction of mitochondrial structures, which may be necessary to avoid the diffusion and transmission of potentially deleterious sperm mtDNA to the progeny.

Indexed as

DNA, MitochondrialAnimalsBenzothiazolesCell LineDiaminesDNADNA PrimersEggsFertilizationMaleMitochondriaNADH DehydrogenaseOrganic ChemicalsOryziasPolymerase Chain ReactionPolymorphism, GeneticBenzothiazolesDiaminesDNADNA, MitochondrialDNA PrimersNADH DehydrogenaseOrganic ChemicalsQuinolinesSYBR Green I

Identifiers

PMID16432229
PMCPMC1360526

What OpenQuestion holds

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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.