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. 1977;55(6):675–702.

Methods for detection of haemophilia carriers: a Memorandum*

PMCID: PMC2366710  PMID: 304395

Abstract

This Memorandum discusses the problems and techniques involved in the detection of carriers of haemophilia A (blood coagulation factor VIII deficiency) and haemophilia B (factor IX deficiency), particularly with a view to its application to genetic counselling. Apart from the personal suffering caused by haemophilia, the proper treatment of haemophiliacs places a great strain on the blood transfusion services, and it is therefore important that potential carriers should have precise information about the consequences of their having children.

The Memorandum classifies the types of carrier and describes the laboratory methods used for the assessment of coagulant activity and antigen concentration in blood. Particular emphasis is laid on the establishment of international, national, and laboratory (working) standards for factors VIII and IX and their calibration in international units (IU). This is followed by a detailed account of the statistical analysis of pedigree and laboratory data, which leads to an assessment of the likelihood that a particular person will transmit the haemophilia gene to her children. Finally, the problems and responsibilities involved in genetic counselling are considered.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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