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Related Experiment Videos

Periluminal antigen in fetal kidneys.

W Heymann, W E Grupe, S P Makker

    Pediatric Research
    |September 1, 1975
    PubMed
    Summary

    This study found that an apical periluminal antigen increases with fetal kidney development, suggesting proximal tubular cell synthesis. This supports the use of fetal kidneys in studying nephrotic renal disease models.

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    NITROGEN, POTASSIUM, SODIUM, AND CHLORINE METABOLISM IN RICKETS, WITH SPECIAL REFERENCE TO BILIARY FISTULA RICKETS IN PUPPIES.

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    Area of Science:

    • Nephrology
    • Developmental Biology
    • Immunology

    Background:

    • Nephrotic renal disease is a complex condition.
    • Periluminal antibodies are implicated in renal disease pathogenesis.
    • The origin of the apical periluminal antigen is not fully understood.

    Purpose of the Study:

    • To investigate the presence and developmental pattern of apical periluminal antigen in human fetal kidneys.
    • To explore the antigen's role in the context of nephrotic renal disease.

    Main Methods:

    • Analysis of 89 human fetal kidneys (6-31 weeks gestational age) for apical periluminal antigen.
    • Utilized sera from rats with experimentally induced nephrotic renal disease containing periluminal antibodies.

    Main Results:

    • Apical periluminal antigen was detected in 24% of kidneys <12 weeks gestational age, increasing to 100% in older fetuses.
    • The antigen's presence correlated with fetal kidney maturation.
    • Disease incidence was 60% with human fetal kidneys and 62% with newborn rat kidneys.

    Conclusions:

    • The findings suggest apical periluminal antigen is synthesized by proximal tubular cells.
    • This supports the hypothesis that the antigen is endogenously produced.
    • The study validates the use of human fetal and newborn rat kidneys in modeling endogenous complex renal diseases.

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