Evidence map›Paper›PMID 24419359›Full record

ReviewNature reviews. Endocrinology2014

Vitamin D and male reproduction.

Martin Blomberg Jensen

5 registry-linked trialsAbstract readReview
PubMed Publisher
In one paragraph

Review in Nature reviews. Endocrinology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 5 registered trials, which are not on this map. Cited by 95 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
95citing papers in PubMed, 4 pooled it
12.0field-weighted citation impact, top 1% 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.

NCT02336932 completednot on this mapstarted 2015, after this paper: background citation

Vitamin D and the Free Hormone Hypothesis: Lessons From Surgical Stress

TypeobservationalSponsorRigshospitalet, DenmarkRan2015 to 2018Enrolled20ConditionsArthrosis, Surgery
NCT03073720 completednot on this mapstarted 2017, after this paper: background citation

Correlation Between Follicular Fluid Levels of Bioavailable Vitamin D and Embryo Quality Markers: Euploid Status, Morphokinetics and Mitochondrial DNA Content Among UAE Women Undergoing an IVF Cycle

TypeobservationalSponsorART Fertility Clinics LLCRan2017 to 2019Enrolled43ConditionsVitamin D Deficiency
NCT05212337 phase2active not recruitingnot on this mapstarted 2022, after this paper: background citation

Effect of a Single-dose Denosumab on Semen Quality in Infertile Men (FITMI): A Randomized Controlled Trial

TypeinterventionalSponsorMartin Blomberg JensenRan2022 to 2025Enrolled180ConditionsInfertility, MaleArmsDenosumab, Sodium chloride
NCT06300229 phase1 / phase2completednot on this mapstarted 2024, after this paper: background citation

Novel Approach for Oligospermia (NAPO): A Randomized Controlled Trial

TypeinterventionalSponsorMartin Blomberg JensenRan2024 to 2025Enrolled42ConditionsInfertility, MaleArmsDenosumab, sodium chloride
NCT06706414 phase1 / phase2active not recruitingnot on this mapstarted 2025, after this paper: background citation

Novel Treatment of Some Men With Non-Obstructive Azoospermia (NT-NOA): A Clinical Interventional Study

TypeinterventionalSponsorMartin Blomberg JensenRan2025 to 2026Enrolled16ConditionsInfertility, MaleArmsDenosumab (Prolia), Letrozole (Aromatase Inhibitors)
3 · Its place in the literature

Who cites it

95 citing papers in PubMed, 4 syntheses or guidelines pooled it, 229 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Vitamin D Deficiency in Testicular Cancer Survivors: A Systematic Review.International journal of molecular sciences · 2021
    Pooled it
  4. Association between polymorphisms in vitamin D receptor gene and adolescent idiopathic scoliosis: a meta-analysis.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2018
    Pooled it
  5. Trial
  6. High-dose vitamin DRespiratory research · 2024
    Trial
  7. Trial
  8. Trial
  9. Trial
  10. Trial
  11. Trial
  12. Trial
  13. Nutritional modulation of male fertility: a molecular-focused scoping review.Journal of health, population, and nutrition · 2026
    Article
  14. Review
  15. Article
  16. Review
  17. Review
  18. Review
  19. Article
  20. Article

35 more citing papers are in PubMed but not listed here.

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.

Martin Blomberg JensenUniversity Department of Growth and Reproduction, Rigshospitalet, Section 5064, Blegdamsvej 9, 2100 Copenhagen, Denmark.
Rigshospitalet · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Vitamin D is a versatile signalling molecule with a well-established role in the regulation of calcium homeostasis and bone health. The spectrum of vitamin D target organs has expanded and the reproductive role of vitamin D is highlighted by expression of the vitamin D receptor (VDR) and enzymes that metabolize vitamin D in testis, male reproductive tract and human spermatozoa. The expression levels of VDR and CYP24A1 in human spermatozoa serve as positive predictive markers of semen quality, and VDR mediates a nongenomic increase in intracellular calcium concentration that induces sperm motility. Interestingly, functional animal models show that vitamin D is important for estrogen signalling and sperm motility, while cross-sectional studies support the positive association between serum 25-hydroxyvitamin D level and sperm motility in both fertile and infertile men. Expression of VDR and enzymes that metabolize vitamin D in fetal testis indicates a yet unknown role during development, which may be extrapolated from invasive testicular germ cell tumours where 1α,25-dihydroxyvitamin D induces a mesodermal differentiation of the pluripotent testicular cancer cells. Taken together, vitamin D signalling has a positive effect on semen quality, increases estrogen responsiveness and differentiates germ cell tumours. Future studies are needed to determine when 1α,25-dihydroxyvitamin D acts in a paracrine manner and whether systemic changes, which are subject to pharmacological modulation, could influence male reproductive function.

Indexed as

AnimalsFertilityHumansMaleReceptors, CalcitriolSpermatozoaTestisVitamin D25-hydroxyvitamin DReceptors, CalcitriolVitamin D

Identifiers

PMID24419359
OpenAlexW1995632906

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.