Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Sperm Structure and Semen Composition01:22

Sperm Structure and Semen Composition

3.1K
During ejaculation, males release around 2-5 milliliters of semen, which is a complex mixture of mature sperm and various fluids produced by accessory glands. The mature sperm cells measure approximately 60 micrometers in length and consist of a head, neck, midpiece, and tail. The head is flattened and tapered, measuring about 4 to 5 micrometers in length. It contains a nucleus with condensed chromosomes and an acrosome, a cap-like structure filled with enzymes essential for penetrating the...
3.1K
Infertility in Males01:23

Infertility in Males

299
Male infertility affects millions of couples worldwide, arising from various factors that impact different stages of the reproductive process. An endocrine imbalance resulting from conditions like hypogonadism, Klinefelter syndrome, or pituitary disorders can disrupt hormone levels and reduce sperm production. Testicular defects, such as tumors, cryptorchidism, atrophic testes, abnormal sperm morphology, and low sperm count or motility, may arise due to genetic factors, structural...
299

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Use of Artificial Intelligence in the choice of sperm for ICSI - A Literature Review.

JBRA assisted reproduction·2026
Same author

Egg freezing in transgender men.

JBRA assisted reproduction·2026
Same author

Seminal parameters of patients with Type 2 Diabetes Mellitus undergoing Assisted Reproduction: A retrospective analysis.

JBRA assisted reproduction·2025
Same author

Associations Between APOE Polymorphisms, Neurological Symptoms, and Cognitive Assessments in Long COVID Patients: An Analysis of SNPs rs7412 and rs429358.

Molecular neurobiology·2025
Same author

New Insights from Toxinology in Mammalian Reproduction: A Systematic Review.

Mini reviews in medicinal chemistry·2025
Same author

Introducing the Blastocyst Fragmentation Indicator (BFI): A Novel Time-Lapse Metric for Enhanced Aneuploidy Risk Stratification in Non-Invasive Embryo Assessment.

JBRA assisted reproduction·2025

Related Experiment Video

Updated: Jul 28, 2025

Author Spotlight: Revolutionizing Research on Vaginal Microbiome Interactions Using a Vaginal Chip
08:15

Author Spotlight: Revolutionizing Research on Vaginal Microbiome Interactions Using a Vaginal Chip

Published on: February 16, 2024

2.4K

Microbiota and seminal quality: A systematic review.

Isadora de Almeida Gomes1, Paula Bruno Monteiro2, Gabriel Acácio de Moura3

  • 1Graduating in biomedicine at the Christus University Center - UNICHRISTUS, Fortaleza, CE, Brazil.

JBRA Assisted Reproduction
|May 31, 2023
PubMed
Summary

The human microbiota impacts health. Infertility in men may link to gut bacteria imbalances, with lower Lactobacillus and higher Prevotella linked to poor seminal quality.

Keywords:
male infertilitymicrobiotaseminal quality

More Related Videos

Microbiota Analysis Using Two-step PCR and Next-generation 16S rRNA Gene Sequencing
11:22

Microbiota Analysis Using Two-step PCR and Next-generation 16S rRNA Gene Sequencing

Published on: October 15, 2019

28.4K
Author Spotlight: A Simple and Cost-Effective Method for Leukocyte Analysis in Semen
04:36

Author Spotlight: A Simple and Cost-Effective Method for Leukocyte Analysis in Semen

Published on: January 19, 2024

4.2K

Related Experiment Videos

Last Updated: Jul 28, 2025

Author Spotlight: Revolutionizing Research on Vaginal Microbiome Interactions Using a Vaginal Chip
08:15

Author Spotlight: Revolutionizing Research on Vaginal Microbiome Interactions Using a Vaginal Chip

Published on: February 16, 2024

2.4K
Microbiota Analysis Using Two-step PCR and Next-generation 16S rRNA Gene Sequencing
11:22

Microbiota Analysis Using Two-step PCR and Next-generation 16S rRNA Gene Sequencing

Published on: October 15, 2019

28.4K
Author Spotlight: A Simple and Cost-Effective Method for Leukocyte Analysis in Semen
04:36

Author Spotlight: A Simple and Cost-Effective Method for Leukocyte Analysis in Semen

Published on: January 19, 2024

4.2K

Area of Science:

  • Microbiology
  • Reproductive Health
  • Human Microbiome

Background:

  • The human microbiota, comprising resident microorganisms, significantly influences host health and disease.
  • Microbiota dysbiosis is implicated in various pathological processes, including male infertility.
  • Understanding the gut-semen axis is crucial for reproductive health.

Approach:

  • A systematic review was conducted to investigate the correlation between the human microbiota and seminal quality in men.
  • Searched PubMed, Medline, and Cochrane Library databases for relevant studies published between 2012 and 2022.
  • Analyzed 7 selected English-language papers.

Key Points:

  • Men with normal semen parameters exhibited a higher prevalence of Lactobacillus.
  • Patients experiencing seminal alterations showed a higher prevalence of Prevotella.
  • Specific microbial shifts are associated with variations in semen quality.

Conclusions:

  • The human microbiota composition is demonstrably correlated with seminal quality.
  • A decrease in Lactobacillus and an increase in other bacterial species, such as Prevotella, are observed in infertile men.
  • Further research into microbiota modulation may offer novel therapeutic strategies for male infertility.