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[The function of hemoglobins].

K Winnefeld1

  • 1Klinik und Poliklinik für Chirurgie des Bereiches Medizin, Friedrich-Schiller-Universität Jena.

Folia Haematologica (Leipzig, Germany : 1928)
|January 1, 1989
PubMed
Summary
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Haemoglobin ensures oxygen delivery and acid-base balance in mammals through cooperative oxygen binding and effectors. Different haemoglobin structures support oxygen supply across human developmental stages.

Area of Science:

  • Biochemistry
  • Physiology

Context:

  • Haemoglobin's critical role in oxygen transport and acid-base homeostasis in mammals.
  • The importance of cooperative oxygen binding and allosteric effectors for efficient gas exchange.

Purpose:

  • To elucidate the mechanisms ensuring optimal oxygen loading and unloading by haemoglobin.
  • To highlight the role of varying haemoglobin structures in meeting oxygen demands throughout human development.

Summary:

  • Haemoglobin facilitates oxygen supply and acid-base balance via cooperative binding of its four subunits.
  • Effectors like 2,3-DPG, chloride, pH, and temperature modulate haemoglobin's oxygen affinity.
  • Diverse haemoglobin types ensure adequate oxygenation across different human ontogenetic stages.

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Impact:

  • Provides a foundational understanding of respiratory physiology and oxygen transport.
  • Emphasizes the adaptive strategies of haemoglobin in maintaining physiological function.
  • Informs research on haemoglobinopathies and developmental biology.