Evidence map›Paper›PMID 25409172›Full record

ArticlePloS one2014

Sperm preservation by freeze-drying for the conservation of wild animals.

Takehito Kaneko, Hideyuki Ito, Hidefusa Sakamoto, Manabu Onuma, Miho Inoue-Murayama

Abstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing 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

14 citing papers in PubMed.

  1. Article
  2. Biobanking biodiversity: recent strategies, challenges, and opportunities.The Journal of reproduction and development · 2026
    Review
  3. Freeze-Drying and Room Temperature Preservation of Mammalian Sperm.Methods in molecular biology (Clifton, N.J.) · 2026
    Article
  4. Article
  5. Review
  6. Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Review
  13. Review
  14. 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

5 authors.

Takehito KanekoInstitute of Laboratory Animals, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
Hideyuki ItoKyoto City Zoo, Kyoto, Japan; Wildlife Research Center of Kyoto University, Kyoto, Japan.
Hidefusa SakamotoKyoto City Zoo, Kyoto, Japan; Wildlife Research Center of Kyoto University, Kyoto, Japan.
Manabu OnumaCenter for Environmental Biology and Ecosystem studies, National Institute for Environmental Studies, Ibaraki, Japan.
Miho Inoue-MurayamaWildlife Research Center of Kyoto University, Kyoto, Japan; Center for Environmental Biology and Ecosystem studies, National Institute for Environmental Studies, Ibaraki, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Sperm preservation is a useful technique for the maintenance of biological resources in experimental and domestic animals, and in wild animals. A new preservation method has been developed that enables sperm to be stored for a long time in a refrigerator at 4 °C. Sperm are freeze-dried in a solution containing 10 mM Tris and 1 mM EDTA. Using this method, liquid nitrogen is not required for the storage and transportation of sperm. We demonstrate that chimpanzee, giraffe, jaguar, weasel and the long-haired rat sperm remain viable after freeze-drying. In all species, pronuclei were formed after the injection of freeze-dried sperm into the mouse oocytes. Although preliminary, these results may be useful for the future establishment of "freeze-drying zoo" to conserve wild animals.

Indexed as

AnimalsAnimals, ZooCell SurvivalFemaleFreeze DryingGiraffesMaleMiceOocytesPantheraPan troglodytesRatsSemen PreservationSpermatozoaSperm Injections, Intracytoplasmic

Identifiers

PMID25409172
PMCPMC4237436

What OpenQuestion holds

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LicenceCC BY
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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.