Evidence map›Paper›PMID 28894123›Full record

ArticleScientific reports2017

Mutations in the prostate specific antigen (PSA/KLK3) correlate with male infertility.

Nishi Gupta, Digumarthi V S Sudhakar, Pravin Kumar Gangwar, Satya Narayan Sankhwar, Nalini J Gupta, Baidyanath Chakraborty, Kumarasamy Thangaraj, Gopal Gupta, Singh Rajender

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
2.4field-weighted citation impact, top 11% 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

15 citing papers in PubMed, 36 citations in OpenAlex.

  1. Review
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  4. Androgens modulate endometrial function.Medical molecular morphology · 2025
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  10. KLK3 in the Regulation of Angiogenesis-Tumorigenic or Not?International journal of molecular sciences · 2021
    Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. 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

9 authors at 4 institutions in 1 country.

Nishi GuptaCentral Drug Research Institute, Lucknow, India.
Digumarthi V S SudhakarCentre for Cellular and Molecular Biology, Hyderabad, India.
Pravin Kumar GangwarKing George's Medical University, Lucknow, India.
Satya Narayan SankhwarKing George's Medical University, Lucknow, India.
Nalini J GuptaInstitute of Reproductive Medicine, Kolkata, India.
Baidyanath ChakrabortyInstitute of Reproductive Medicine, Kolkata, India.
Kumarasamy ThangarajCentre for Cellular and Molecular Biology, Hyderabad, India.
Gopal GuptaCentral Drug Research Institute, Lucknow, India.
Singh RajenderCentral Drug Research Institute, Lucknow, India. rajender_singh@cdri.res.in.
Central Drug Research Institute · INCentre for Cellular and Molecular Biology · INKing George's Medical University · INInstitute of Reproductive Medicine · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Prostate specific antigen (PSA/KLK3) is known to be the chief executor of the fragmentation of semenogelins, dissolution of semen coagulum, thereby releasing sperm for active motility. Recent research has found that semenogelins also play significant roles in sperm fertility by affecting hyaluronidase activity, capacitation and motility, thereby making PSA important for sperm fertility beyond simple semen liquefaction. PSA level in semen has been shown to correlate with sperm motility, suggesting that PSA level/activity can affect fertility. However, no study investigating the genetic variations in the KLK3/PSA gene in male fertility has been undertaken. We analyzed the complete coding region of the KLK3 gene in ethnically matched 875 infertile and 290 fertile men to find if genetic variations in KLK3 correlate with infertility. Interestingly, this study identified 28 substitutions, of which 8 were novel (not available in public databases). Statistical comparison of the genotype frequencies showed that five SNPs, rs266881 (OR = 2.92, P < 0.0001), rs174776 (OR = 1.91, P < 0.0001), rs266875 (OR = 1.44, P = 0.016), rs35192866 (OR = 4.48, P = 0.025) and rs1810020 (OR = 2.08, P = 0.034) correlated with an increased risk of infertility. On the other hand, c.206 + 235 T > C, was more freuqent in the control group, showing protective association. Our findings suggest that polymorphisms in the KLK3 gene correlate with infertility risk.

Indexed as

Genetic Predisposition to DiseasePolymorphism, Single NucleotideAmino Acid SubstitutionGene FrequencyGenotypeHumansInfertility, MaleKallikreinsMaleProstate-Specific AntigenRisk AssessmentSequence Analysis, DNAKallikreinsKLK3 protein, humanProstate-Specific Antigen

Identifiers

PMID28894123
PMCPMC5593825
OpenAlexW2750954161

What OpenQuestion holds

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Registered trials

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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.