Thromb Haemost 1993; 69(01): 064-069
DOI: 10.1055/s-0038-1651550
Original Article
Platelets
Schattauer GmbH Stuttgart

Application of GPIIIa Gene Taq I Polymorphism to Determination of Carrier Status in Glanzmann’s Thrombasthenia Families of Chinese Origin

Changgeng Ruan
The Jiangsu Institute of Haematology, Thrombosis and Haemostasis Research Unit, Suzhou Medical College, The People’s Republic of China
,
Jianming Gu
The Jiangsu Institute of Haematology, Thrombosis and Haemostasis Research Unit, Suzhou Medical College, The People’s Republic of China
,
Xiaodong Wang
The Jiangsu Institute of Haematology, Thrombosis and Haemostasis Research Unit, Suzhou Medical College, The People’s Republic of China
,
Xiaohong Chu
The Jiangsu Institute of Haematology, Thrombosis and Haemostasis Research Unit, Suzhou Medical College, The People’s Republic of China
,
Junliang Pan
The Jiangsu Institute of Haematology, Thrombosis and Haemostasis Research Unit, Suzhou Medical College, The People’s Republic of China
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Publikationsverlauf

Received 02. März 1992

Accepted after revision 27. August 1992

Publikationsdatum:
04. Juli 2018 (online)

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Summary

Glanzmann’s thrombasthenia is a bleeding disorder caused by qualitative and/or quantitative defects of platelet membrane glycoprotein (GP) IIb/IIIa complex. The disease is inherited in an autosomal recessive manner. In this paper, cDNA probes were used to study restriction fragment length polymorphisms (RFLPs) in GPIIIa gene. A Taq I polymorphism was identified and this RFLP was composed of variant bands of 6.5 Kb/4.0 and 2.5 Kb with a frequency of 0.46/0.54 in Chinese population. The Taq I polymorphism was further localized by polymerase chain reaction (PCR) method to exon VIII of the GPIIIa gene. In two Glanzmann’s thrombasthenia families, the Taq I RFLP studied by both Southern blotting and PCR methods identified the defective GPIIIa gene inherited by patients, and determined the genotype of asymptomatic subjects. Analysis of this Taq I polymorphism by PCR method should be potentially useful in future for the carrier detection and prenatal diagnosis in Glanzmann’s thrombasthenia families.