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Related Experiment Videos

Developing elastic tissue. An electron microscopic study.

E N Albert

    The American Journal of Pathology
    |October 1, 1972
    PubMed
    Summary
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    A new silver stain helps differentiate developing elastic tissue components at the electron microscopic level. This method distinguishes new elastica from existing tissue in normal and diseased states.

    Area of Science:

    • Electron microscopy
    • Histology
    • Biochemistry

    Background:

    • Electron microscopic identification of elastic tissue is challenging due to the absence of specific electron-dense stains.
    • Previous methods lacked specificity for differentiating elastic tissue components.

    Purpose of the Study:

    • To utilize a novel silver porphyrin stain for differentiating developing elastic tissue at the electron microscopic level.
    • To distinguish between newly formed and existing elastic tissue in various conditions.

    Main Methods:

    • Application of a silver porphyrin stain (silver tetraphenylporphine sulfonate) and lead citrate for electron microscopy.
    • Morphological and staining property analysis of developing elastic tissue components.

    Main Results:

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    • Developing elastic tissue comprises two distinct components: fibrous and amorphous.
    • The fibrous component, appearing first, stains with lead citrate.
    • The amorphous component, appearing later, stains with silver porphyrin and forms within the fibrous matrix.
    • Mature elastic tissue lacks the fibrous component.

    Conclusions:

    • The silver porphyrin stain enables differentiation of newly formed from existing elastic tissue.
    • This technique improves the electron microscopic identification of elastic tissue in normal and disease states.