Related Experiment Video
Updated: Feb 11, 2026

Author Spotlight: Oral Candida Diagnosis to Advance Clinical Treatment Regimen for pSS Patients
Published on: March 1, 2024
The relation between protein Z polymorphism and the risk of thrombosis in Egyptian patients with antiphospholipid
Yomna K Eissa1, Hend N Ellithy1, Sherif M Yousry2
1Clinical Hematology Unit, Internal Medicine Department, Kasr Alainy Faculty of Medicine, Cairo University, Cairo, Egypt.
Background:
The genetic background plays an important role in thrombosis and pregnancy morbidities. Low levels of protein Z is associated with increased risk of thrombosis. The G79A polymorphism in the protein Z gene may be a genetic risk factor for thrombosis.
Aim Of The Study:
To investigate the prevalence and clinical significance of the protein Z-79 G/A gene polymorphism in Egyptian patients with antiphospholipid syndrome (APS).
Methods:
We genotyped 60 APS patients and 41 controls, for protein Z-79 G/A gene polymorphism using the PCR-restriction fragment length. The polymorphism was then analyzed in relation to thrombosis and pregnancy morbidities in APS patients.
Results:
We observed a higher prevalence of the A allele in the controls when compared to the APS patients (P Value = <0.001). In our studied sample, the G79A polymorphism, as well as its minor A allele, were not associated with an increased risk of thrombosis or pregnancy morbidities in APS.
Conclusion:
Protein Z-79 G/A gene polymorphism may be of a protective value against thrombosis in APS. The G79A polymorphism of protein Z was not found to be an independent risk factor of thrombosis in APS.
Related Concept Videos
Relative Risk
Venous Thrombosis I: Introduction
Single Nucleotide Polymorphisms-SNPs
Factors Affecting Protein-Drug Binding: Patient-Related Factors
Age stands as a key determinant in protein-drug binding. Neonates, characterized by low albumin content, experience heightened concentrations of unbound drugs such as phenytoin and...
Factors Affecting the Risk of Infection
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
Factors Affecting Dissolution: Polymorphism, Amorphism and Pseudopolymorphism
Some polymorphic crystals possess lower aqueous solubility than their amorphous counterparts, leading to incomplete absorption. For instance, the oral suspension of Chloramphenicol, which...

