A laboratory study of the carrier state in classic hemophilia.
A laboratory study of the carrier state in classic hemophilia.
复制标题
经典血友病携带者状态的实验室研究。
DOI:
10.1172/jci103387
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发表时间:
1956
期刊:
影响因子:
--
通讯作者:
O. Ratnoff
中科院分区:
文献类型:
--
作者:
A. Margolius;O. Ratnoff
For many years it has been recognized that the hemorrhagic disorder now known as hemophilia is a hereditary disease of males transmitted to them only through females. From both the sociologic and medical points of view it would be important to detect those females who are conductors of the genetic defect responsible for this disease. On genetic grounds three groups of individuals can be assumed to be carriers, firstly, all daughters of a hemophiliac, secondly, the mother of two or more hemophiliacs, and thirdly, the mother of a single hemophiliac when she has other hemophilic relatives. The problem which cannot be answered on the basis of genetic hypothesis is which other female relatives of a hemophiliac are conductors. The published reports of studies of this problem are numerous and contradictory. It is the consensus that female carriers are usually asymptomatic, but there is considerable difference of opinion as to whether their blood has abnormalities detectable in the laboratory. It has only been within the last few years that the syndrome of hemophilia has been differentiated from Christmas disease (deficiency of plasma thromboplastin component). Possibly, the conflicting opinions concerning the detection of carriers have been due in part to the confusion of hemophilia with Christmas disease or with other hemorrhagic disorders. The present report concerns attempts to detect the carrier state in classic hemophilia by laboratory techniques. Among 19 presumptive and 8 possible carriers, an abnormally low concentration of antihemophilic factor was detectable in the plasma in only one instance.