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Related Experiment Videos

Zinc status in polycythaemia.

K Simmer1, T C Pearson, M J Wheeler

  • 1Gastrointestinal Laboratory, United Medical School of Guy's Hospital, London, U.K.

European Journal of Haematology
|May 1, 1987
PubMed
Summary
This summary is machine-generated.

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Polycythaemic patients undergoing venesection show lower zinc levels, particularly in polymorphonuclear cells (PMN). This zinc deficiency may contribute to symptoms and infections in these patients.

Area of Science:

  • Hematology
  • Nutritional Science

Background:

  • Polycythaemia is a condition characterized by an abnormally high concentration of red blood cells.
  • Management often involves venesection (blood removal), which can impact nutrient status.
  • Zinc and iron are essential minerals with roles in immune function and erythropoiesis.

Purpose of the Study:

  • To assess zinc and iron status in patients with different types of polycythaemia.
  • To investigate the relationship between venesection management and micronutrient levels.
  • To explore potential links between nutrient deficiencies and patient symptoms or complications.

Main Methods:

  • Measured zinc and iron status in three polycythaemia groups (polycythaemia rubra vera, secondary polycythaemia, idiopathic erythrocytosis).
  • Assessed zinc status via zinc concentration in polymorphonuclear cells (PMN) and plasma.

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  • Compared patient values to age-matched healthy controls.

    • Main Results:

    • Polycythaemic patients had significantly lower mean PMN zinc levels compared to controls (57.5 vs. 68.9 µg/10¹⁰ PMN, p < 0.05).
    • The most pronounced reduction in PMN zinc was observed in polycythaemia rubra vera patients, who were also iron-deficient.
    • Reduced PMN zinc levels suggest potential zinc deficiency in polycythaemic patients managed with venesection.

    Conclusions:

    • Polycythaemic patients managed by venesection may be zinc-deficient.
    • This zinc deficiency could contribute to non-specific polycythaemia symptoms.
    • Recurrent infections in hypoxic polycythaemic patients might be linked to zinc deficiency.