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

Microscopic observations on some fibrous dust samples.

K H Friedrichs, B Molik

    Zentralblatt Fur Bakteriologie, Mikrobiologie Und Hygiene. 1. Abt. Originale B, Hygiene
    |December 1, 1985
    PubMed
    Summary
    This summary is machine-generated.

    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

    Interaction between Aeroallergens and Airborne Particulate Matter.

    International archives of allergy and immunology·2021
    Same author

    Airborne particulate matter modulates the production of reactive oxygen species in human polymorphonuclear granulocytes.

    Toxicology·1997
    Same author

    Air pollution and allergy: experimental studies on modulation of allergen release from pollen by air pollutants.

    International archives of allergy and immunology·1997
    Same author

    Asbestos fibers in bronchoalveolar lavage and lung tissue of former asbestos workers.

    American journal of respiratory and critical care medicine·1994
    Same author

    Occupational and environmental hazards associated with lung cancer.

    International journal of epidemiology·1992
    Same author

    Electron microscopy analysis of mineral fibers in human lung tissue.

    American journal of industrial medicine·1992

    Human activities release airborne fibers, posing health risks. This study identified specific fiber characteristics in lung tissue and air, crucial for understanding potential health impacts and improving measurement techniques.

    Area of Science:

    • Environmental Science
    • Toxicology
    • Materials Science

    Background:

    • Airborne fibers, often from human activities, present potential health risks upon inhalation.
    • Current measurement techniques for these fibers are inconsistent due to limited data on their biological, particularly carcinogenic, potential.
    • Understanding fiber characteristics is vital for assessing health impacts and refining detection methods.

    Purpose of the Study:

    • To determine the fiber content in human lung dust from various exposure groups using electron microscopy.
    • To compare fiber characteristics in lung tissue with atmospheric fibers from the Ruhr District.
    • To identify fiber properties associated with increased biological relevance, especially concerning mesothelial risk.

    Main Methods:

    • Electron microscopy was employed to analyze fiber content in human lung dust specimens.

    Related Experiment Videos

  • Specimens included normal lungs (control), mesothelioma cases (spontaneous and occupational), and fibrosis cases (coal and talc miners).
  • Atmospheric air samples from the Ruhr District were analyzed for fiber characteristics (shape, length, diameter).

    • Main Results:

    • Fiber size distribution varied significantly based on prior exposure history.
    • Elongated, irregularly shaped particles complicated counting and sizing, particularly diameter measurements.
    • Fibrous particles >1 micron in length with a length-to-breadth ratio >10:1 indicated heightened biological relevance for mesothelial risk.

    Conclusions:

    • Fiber characteristics in lung tissue are influenced by exposure history.
    • Standardized measurement protocols are needed, considering particle shape and size.
    • Specific fiber dimensions (length >1 micron, L:B ratio >10:1) are critical indicators for mesothelial health risk assessment.