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 Experiment Videos

Pronuclear scoring. Time for international standardization.

Ursula Zollner1, Klaus-Peter Zollner, Thomas Steck

  • 1Department of Obstetrics and Gynecology, University of Würzburg, Josef-Schneider-Strasse 4, D-97080 Würzburg, Germany. zollner_u@klinik.uni-wuerzburg.de

The Journal of Reproductive Medicine
|June 21, 2003
PubMed
Summary

Standardizing zygote scoring systems is crucial for reliable embryo selection. This approach enhances the consistency of pronuclear evaluation, improving assisted reproductive technology outcomes.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Bone Morphogenetic Protein Augmentation of Large Acetabular Defects in Revision Total Hip Arthroplasty: A Viable Option for Massive Bone Loss.

Arthroplasty today·2026
Same author

Trabecular Metal Augments During Complex Primary Total Hip Arthroplasty.

Arthroplasty today·2024
Same author

Ovarian cancer cells regulate their mitochondrial content and high mitochondrial content is associated with a poor prognosis.

BMC cancer·2024
Same author

Ovarian Cancer-Cell Pericellular Hyaluronan Deposition Negatively Impacts Prognosis of Ovarian Cancer Patients.

Biomedicines·2022
Same author

Conforming Polyethylene Inserts in Total Knee Arthroplasty: Beyond the Posterior-Stabilized and Cruciate-Retaining Debate.

The Journal of the American Academy of Orthopaedic Surgeons·2021
Same author

The Bavarian Ethics Committee for Pre-Implantation Diagnosis-811 Decisions Over 5 Years.

Deutsches Arzteblatt international·2021

Area of Science:

  • Reproductive biology
  • Embryology
  • Assisted Reproductive Technology (ART)

Background:

  • Zygote scoring is a valuable tool for embryo selection in ART.
  • Current scoring systems lack standardization, hindering inter-laboratory comparisons.
  • Standardization is needed for pronuclear evaluation, similar to WHO semen analysis guidelines.

Purpose of the Study:

  • To highlight the need for a standardized zygote scoring system.
  • To identify key morphological parameters influencing embryonic development.
  • To propose a clear and applicable scoring method for zygotes.

Main Methods:

  • Review of existing zygote scoring systems.
  • Identification of critical pronuclear morphological features.

Related Experiment Videos

  • Analysis of parameters influencing early embryonic development.

    • Main Results:

    • Lack of standardization complicates embryo assessment across different labs.
    • Key features for zygote scoring include pronuclear alignment and size, nucleoli characteristics, and vacuole presence.
    • These parameters can be integrated into a comprehensive zygote score.

    Conclusions:

    • A standardized zygote scoring system is essential for consistent embryo selection.
    • Standardization will improve the reliability and comparability of zygote morphology assessments.
    • Implementing a clear, applicable scoring system can enhance ART success rates.