Evidence map›Paper›PMID 24723387›Full record

ReviewProtein science : a publication of the Protein Society2014

Vaccine for human contraception targeting sperm Izumo protein and YLP12 dodecamer peptide.

Rajesh K Naz

Open access · bronzeAbstract readReview
In one paragraph

Review in Protein science : a publication of the Protein Society, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
3.2field-weighted citation impact, top 10% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.

  1. Pooled it
  2. Sleep Deprivation and Late Bedtime Impair Sperm Health Through Increasing Antisperm Antibody Production: A Prospective Study of 981 Healthy Men.Medical science monitor : international medical journal of experimental and clinical research · 2017
    Trial
  3. Review
  4. Article
  5. Non-Hormonal Contraception.Journal of clinical medicine · 2023
    Review
  6. Article
  7. Review
  8. Review
  9. RISUGBasic and clinical andrology · 2020
    Article
  10. Sperm IZUMO1-Dependent Gamete Fusion Influences Male Fertility in Mice.International journal of molecular sciences · 2019
    Article
  11. Review
  12. Article
  13. Development of antifertility vaccine using sperm specific proteins.The Indian journal of medical research · 2014
    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

1 author at 1 institution in 1 country.

Rajesh K NazReproductive Immunology and Molecular Biology Laboratories, Department of Obstetrics and Gynecology, West Virginia University, School of Medicine, Morgantown, West Virginia.
West Virginia University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

There is an urgent need to develop a better method of contraception which is non-steroidal and reversible to control world population explosion and unintended pregnancies. Contraceptive vaccines (CV), especially targeting sperm-specific proteins, can provide an ideal contraceptive modality. Sperm-specific proteins can induce an immune response in women as well as men, thus can be used for CV development in both sexes. In this article, we will review two sperm-specific proteins, namely Izumo protein and YLP12 dodecamer peptide. Gene-knockout studies indicate that Izumo protein is essential for sperm-egg membrane fusion. Vaccination with Izumo protein or its cDNA causes a significant reduction in fertility of female mice. The antibodies to human Izumo inhibit human sperm penetration assay. Recently, our laboratory found that a significant percentage of infertile women have antibodies to Izumo protein. The second sperm-specific protein is YLP12 , a peptide mimetic sequence present on human sperm involved in recognition and binding to the human oocyte zona pellucida. Vaccination with YLP12 or its cDNA causes long-term, reversible contraception, without side effects, in female mice. Infertile, but not fertile, men and women have antibodies to YLP12 peptide. Our laboratory has isolated, cloned, and sequenced cDNA encoding human single chain variable fragment (scFv) antibody from infertile men which reacts with YLP12 peptide. The human YLP12 scFv antibody may provide a novel passive immunocontraceptive, the first of its kind. In conclusion, sperm-specific Izumo protein and YLP12 peptide can provide exciting candidates for antisperm CV development.

Indexed as

Contraception, ImmunologicAnimalsFemaleHumansImmunoglobulinsMaleMembrane ProteinsMiceOligopeptidesSingle-Chain AntibodiesSpermatozoaVaccines, ContraceptiveImmunoglobulinsIZUMO1 protein, humanIzumo1 protein, mouseMembrane ProteinsOligopeptidesSingle-Chain AntibodiesVaccines, ContraceptiveYLP(12) peptidecontraceptionIzumoprotein sciencesperm proteinvaccinesYLP12

Identifiers

PMID24723387
PMCPMC4088970
OpenAlexW1570602592

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.