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Related Experiment Videos

Sickled red cells in the Cervidae.

W J Taylor

    Advances in Veterinary Science and Comparative Medicine
    |January 1, 1983
    PubMed
    Summary

    Deer hemoglobin can polymerize into sickle-shaped cells under specific conditions, similar to human sickle cell disease, but does not occur in vivo. This phenomenon offers insights into hemoglobin polymerization mechanisms.

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    Author reply to Douglas.

    Internal medicine journal·2013

    Area of Science:

    • Hematology
    • Molecular Biology
    • Evolutionary Biology

    Background:

    • Hemoglobin polymerization in red blood cells is a key factor in sickle cell disease.
    • Deer hemoglobin exhibits unique polymerization properties under non-physiological conditions.

    Purpose of the Study:

    • To investigate the phenomenon of hemoglobin polymerization in deer red blood cells.
    • To explore the structural and genetic basis of deer hemoglobin aggregation.
    • To understand the potential of deer hemoglobin as a model for studying polymerization.

    Main Methods:

    • Analysis of hemoglobin polymerization under varying pH and oxygen levels.
    • Comparison of deer sickle cells with human sickle cells.
    • Examination of deer hemoglobin genetics, including alpha-chain gene duplication and beta-chain variability.

    Main Results:

    • Deer hemoglobin polymerizes into sickle-shaped and matchstick-shaped cells when exposed to elevated pH and oxygen.
    • These deer sickle cells share mechanical fragility and viscosity with human sickle cells.
    • Polymerization occurs outside physiological ranges, preventing in vivo sickling or disease in deer.
    • Deer hemoglobin exhibits alpha-chain gene duplication and significant beta-chain primary structure variability.

    Conclusions:

    • Deer hemoglobin polymerization, while not causing disease in vivo, provides a model for studying the molecular interactions driving hemoglobin aggregation.
    • The genetic features of deer hemoglobin, such as beta-chain polymorphism, warrant further investigation.
    • Understanding deer hemoglobin polymerization may elucidate the fundamental mechanisms and contact points involved in sickle cell formation.

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