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Related Experiment Videos

An improved method for repeated plasmapheresis in the rat.

J Markofsky, N Orentreich

    Laboratory Animal Science
    |February 1, 1976
    PubMed
    Summary

    Researchers developed a novel rat plasmapheresis method for long-term studies. This technique safely removes plasma weekly for 10 weeks, maintaining animal health and body weight for valuable research insights.

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    Area of Science:

    • Veterinary Medicine
    • Physiology
    • Animal Research

    Background:

    • Plasmapheresis is a medical procedure to separate plasma from blood.
    • Long-term plasmapheresis in rats is challenging to implement safely and effectively.
    • Existing methods may cause harm or alter physiological parameters.

    Purpose of the Study:

    • To design and validate an improved, minimally invasive plasmapheresis method for rats.
    • To assess the safety and efficacy of weekly long-term plasmapheresis in a rodent model.
    • To establish a reliable technique for studies requiring chronic plasma removal.

    Main Methods:

    • Anesthetized rats underwent venipuncture of the iliac vein using a butterfly infusion set.
    • Six ml of blood were collected into a heparinized syringe and centrifuged.
    • Plasma was separated, and red blood cells (RBCs) were reinfused via the phlebotomy apparatus.

    Main Results:

    • The procedure was performed weekly for 10 weeks without apparent harm to the animals.
    • No significant changes were observed in total serum protein and albumin levels.
    • Body weights remained stable in most animals throughout the study period.

    Conclusions:

    • The developed method offers a safe and effective approach for long-term plasmapheresis in rats.
    • This technique is suitable for research requiring chronic plasma removal without compromising animal welfare.
    • The method's consistency in maintaining physiological parameters makes it valuable for preclinical studies.

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