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Related Experiment Videos

Ultrastructure of the lymph node after prolonged immunization.

C Cotutiu, S Hrisanidi, C Ionescu

    Morphologie Et Embryologie
    |January 1, 1976
    PubMed
    Summary
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    Prolonged immunization with foreign sera caused lymph node changes, including hypertrophy and germinal center development. These morphological alterations in lymph nodes correlate with immune responses.

    Area of Science:

    • Immunology
    • Histology

    Background:

    • Lymph nodes are critical for immune responses.
    • Understanding lymph node morphology provides insights into immune activity.

    Purpose of the Study:

    • To investigate the fine structural changes in lymph nodes following prolonged immunization with heterologous sera.
    • To correlate morphological alterations with serological findings.

    Main Methods:

    • Histological examination of lymph node fine structure.
    • Prolonged immunization protocols using heterologous sera.
    • Observation of splenectomized and immunosuppressed animal models.

    Main Results:

    • Hypertrophy of lymph node cortex and paracortex observed.

    Related Experiment Videos

  • Development of bursa-dependent zones near lymphatic sinuses, postcapillary venules, veins, and arteries.
  • Presence of germinative centers with large ribosomes, rich cells, and macrophages.

    • Conclusions:

    • Prolonged immunization induces significant morphological changes in lymph nodes.
    • These changes reflect heightened immunologic activity.
    • Morphological findings are consistent with serological data, underscoring their significance in immune response.