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Altered haem--haem interaction and tissue-oxygen supply: a theoretical analysis
British Journal of Haematology
|March 1, 1977
Summary
Haem-haem interaction significantly impacts oxygen transport, potentially as much as haemoglobin-oxygen affinity (P50). Further research is needed to understand its variability and effects on tissue oxygen supply.
Area of Science:
- Physiology
- Biophysics
Background:
- The haem-haem interaction, influencing the oxyhaemoglobin dissociation curve shape, is often overlooked in oxygen transport studies.
- Haemoglobin-oxygen affinity, measured by P50, is typically the focus, while haem-haem interaction's role is underestimated.
Purpose of the Study:
- To review experimental evidence on haem-haem interaction invariance.
- To demonstrate the impact of altered haem-haem interaction on tissue oxygen supply, distinct from P50 effects.
Main Methods:
- Review of existing experimental data on haem-haem interaction.
- Theoretical modeling of oxygen transport with varying haem-haem interaction parameters.
Main Results:
- Altered haem-haem interaction can substantially modify oxygen transport to tissues.
- The effect of haem-haem interaction on oxygen transport can be comparable to or greater than that of P50 variations.
Conclusions:
- The invariance assumption of haem-haem interaction may be incorrect.
- Variations in haem-haem interaction warrant further systematic investigation due to their significant implications for oxygen transport and tissue oxygenation.