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Global standardisation of haemoglobin A(1c) using metrological principles

W Garry John1

  • 1Department of Clinical Biochemistry, Norfolk and Norwich University Hospital, Norwich NR4 7UY, UK. g.john@nnuh.nhs.uk

Clinical Biochemistry
|August 10, 2012
PubMed
Summary

No abstract available in PubMed .

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Hemoglobin01:24

Hemoglobin

Hemoglobin is a globular protein made up of four subunits. Two of these subunits are alpha chains, and the other two are beta chains. Each subunit contains a molecule of heme, which has an iron atom and can bind to oxygen. When an oxygen molecule binds to one heme group, it changes the shape of hemoglobin, making it easier for the other heme groups to bind oxygen as well.
When all four heme groups are bound to oxygen, the resulting molecule is called oxyhemoglobin. As a result, arterial blood...