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

On round-headed human spermatozoa.

S Kullander, A Rausing

    International Journal of Fertility
    |January 1, 1975
    PubMed
    Summary
    This summary is machine-generated.

    This study identifies a rare cause of male infertility: acrosomeless spermatozoa, characterized by abnormal head development. This condition, observed in infertile brothers and others, impacts sperm function and fertility 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

    Contamination of smears with "sergentella spiroides".

    Scandinavian journal of infectious diseases·2015
    Same author

    Abashian-Booth-Crowe effect in basic double-pionic fusion: a new resonance?

    Physical review letters·2011
    Same author

    Some observations on radiation sickness and its treatment.

    Acta radiologica·2010
    Same author

    Double-pionic fusion of nuclear systems and the "ABC" effect: approaching a puzzle by exclusive and kinematically complete measurements.

    Physical review letters·2009
    Same author

    Experimental kerma coefficients for carbon deduced from microscopic cross sections at 96 MeV incident neutron energy.

    Physics in medicine and biology·2004
    Same author

    Exclusive measurement of the pp --> pppi(+)pi(-) reaction near threshold.

    Physical review letters·2002
    Same journal

    Confidentiality and American semen donors.

    International journal of fertility·1993
    Same journal

    Trichosanthin as an abortifacient for terminating early pregnancy in mice.

    International journal of fertility·1993
    Same journal

    Hormonal and immunologic methods in the diagnosis and treatment of patients with benign ovarian tumors and endometriotic cysts.

    International journal of fertility·1993
    Same journal

    A decade of experience with transdermal estrogen replacement therapy: overview of key pharmacologic and clinical findings.

    International journal of fertility·1993
    Same journal

    Homologous artificial insemination (AIH) and gamete intrafallopian transfer (GIFT) in Roman Catholicism and Halakhic Judaism.

    International journal of fertility·1993
    Same journal

    Auto-immunity to spermatozoa and quality of semen in men with spinal cord injury.

    International journal of fertility·1993
    See all related articles

    Area of Science:

    • Reproductive Biology
    • Human Genetics
    • Spermatozoa Morphology

    Background:

    • Investigates a rare cause of male infertility characterized by unique sperm malformations.
    • Focuses on infertile individuals with round-headed spermatozoa lacking normal head development.

    Observation:

    • Electron microscopy revealed a complete absence of acrosomes in all spermatozoa.
    • Acrosomeless spermatozoa were identified in both ejaculate and testicular tubules.
    • No endocrine dysfunction or karyotype abnormalities were detected in affected individuals.

    Findings:

    • The primary finding is the absence of acrosomes, leading to abnormal sperm head development and infertility.
    • Meiotic investigations showed a rudimentary second division.
    • Two additional unrelated infertile men presented with the same isolated spermiogram disturbance.

    Related Experiment Videos

    Implications:

    • This research distinguishes a novel teratospermia syndrome, crucial for understanding male infertility.
    • Identifies a specific morphological defect (acrosomeless spermatozoa) as a distinct cause of infertility.
    • Highlights the need for specialized diagnostic approaches for unexplained male infertility.