Evidence map›Paper›PMID 28442719›Full record

ArticleScientific reports2017

Chlamydia trachomatis neither exerts deleterious effects on spermatozoa nor impairs male fertility.

Jenniffer Puerta Suarez, Leonardo R Sanchez, Florencia C Salazar, Hector A Saka, Rosa Molina, Andrea Tissera, Virginia E Rivero, Walter D Cardona Maya, Ruben D Motrich

Erratum issuedOpen 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. An erratum has been issued. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
2.2field-weighted citation impact, top 15% 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, 30 citations in OpenAlex.

  1. Evaluation of the APTIMA Combo 2™ kit for the detection of Chlamydia trachomatis and Neisseria gonorrhoeae in frozen semen.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2025
    Article
  2. Review
  3. Article
  4. Chlamydiosis in Animals.Animals : an open access journal from MDPI · 2024
    Review
  5. Article
  6. Article
  7. Expression of HPV-16 E6 and E7 oncoproteins altersFrontiers in cellular and infection microbiology · 2023
    Article
  8. Article
  9. Article
  10. Microorganisms · 2019
    Review
  11. Article
  12. Effects of infections with five sexually transmitted pathogens on sperm quality.Clinical and experimental reproductive medicine · 2017
    Article
  13. Asian journal of andrology
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 2 countries.

Jenniffer Puerta SuarezCentro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI-CONICET), Departamento de Bioquímica Clínica. Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Haya de la Torre y Medina Allende, Córdoba, 5016, Argentina.
Leonardo R SanchezCentro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI-CONICET), Departamento de Bioquímica Clínica. Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Haya de la Torre y Medina Allende, Córdoba, 5016, Argentina.
Florencia C SalazarCentro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI-CONICET), Departamento de Bioquímica Clínica. Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Haya de la Torre y Medina Allende, Córdoba, 5016, Argentina.
Hector A SakaCentro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI-CONICET), Departamento de Bioquímica Clínica. Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Haya de la Torre y Medina Allende, Córdoba, 5016, Argentina.
Rosa MolinaLaboratorio de Andrología y Reproducción, LAR, Córdoba, 5016, Argentina.
Andrea TisseraLaboratorio de Andrología y Reproducción, LAR, Córdoba, 5016, Argentina.
Virginia E RiveroCentro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI-CONICET), Departamento de Bioquímica Clínica. Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Haya de la Torre y Medina Allende, Córdoba, 5016, Argentina.
Walter D Cardona MayaGrupo Reproducción, Facultad de Medicina, Universidad de Antioquia, Sede de Investigación Universitaria, SIU, Laboratorio 534, 1226, Medellín, Colombia.
Ruben D MotrichCentro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI-CONICET), Departamento de Bioquímica Clínica. Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Haya de la Torre y Medina Allende, Córdoba, 5016, Argentina. rmotrich@fcq.unc.edu.ar.
Consejo Nacional de Investigaciones Científicas y Técnicas · ARUniversidad de Antioquia · COUniversidad Nacional de Córdoba · AR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Chlamydia trachomatis is the most prevalent sexually transmitted bacterial infection. However, whether Chlamydia trachomatis has a negative impact on sperm quality and male fertility is still controversial. Herein, we report the effects on sperm quality of the in vitro exposure of spermatozoa to Chlamydia trachomatis, and also the effects of male genital infection on male fertility using an animal model. Human and mouse sperm were obtained from healthy donors and cauda epididimys from C57BL/6 mice, respectively. Highly motile human or mouse spermatozoa were in vitro exposed to C. trachomatis (serovar E or LGV) or C. muridarum, respectively. Then, sperm quality parameters were analyzed. Moreover, male fertility of Chlamydia muridarum infected male C57BL/6 mice was assessed. Human or murine sperm in vitro exposed to increasing bacterial concentrations or soluble factors from C. trachomatis or C. muridarum, respectively, did not show differences in sperm motility and viability, apoptosis, mitochondrial membrane potential, DNA fragmentation, ROS production and lipid peroxidation levels, when compared with control sperm (p > 0.05). Moreover, no differences in fertility parameters (potency, fecundity, fertility index, pre- and post-implantation loss) were observed between control and infected males. In conclusion, our results indicate that Chlamydia spp. neither directly exerts deleterious effects on spermatozoa nor impairs male fertility.

Indexed as

FertilityAnimalsCell MovementCell SurvivalChlamydia InfectionsChlamydia muridarumChlamydia trachomatisDisease Models, AnimalHumansLipid PeroxidationMaleMice, Inbred C57BLReactive Oxygen SpeciesReproductive Tract InfectionsSpermatozoaReactive Oxygen Species

Identifiers

PMID28442719
PMCPMC5430866
OpenAlexW2606955898

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.