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Evaluation of p53 Polymorphism in Patients with Pannus-Derived Prosthetic Dysfunction
The Journal of Heart Valve Disease
|February 23, 2016
Summary
Pannus formation causing prosthetic valve dysfunction (PVD) is not linked to the p53 Arg72Pro gene polymorphism. This genetic variation does not appear to be a factor in the development of PVD related to pannus in patients with prosthetic heart valves.
Area of Science:
- Cardiovascular Surgery
- Genetics
- Biomaterials Science
Background:
- Prosthetic valve dysfunction (PVD) can arise from pannus formation, a biological reaction to prosthetic materials.
- The p53 gene is crucial for apoptosis and cell proliferation.
- p53 Arg72Pro polymorphism is implicated in coronary stent restenosis but unstudied in PVD.
Purpose of the Study:
- To investigate the association between pannus-derived PVD and the p53 G72C(Arg72Pro) polymorphism.
Main Methods:
- A prospective, single-center study involving 25 patients with PVD (group 1) and 49 controls with functional prostheses (group 2).
- Prostheses were assessed via echocardiography.
- p53 G72C(Arg72Pro) polymorphism was analyzed using real-time polymerase chain reaction.
Main Results:
- The mitral position was the most common site for valve replacement in both groups.
- No significant difference in p53 Arg72Pro polymorphism was found between patients with PVD and controls (p = 0.769).
- Allelic distribution showed no statistically significant variation between the groups.
Conclusions:
- The mechanism of pannus formation in patients with prosthetic valves is independent of the p53 Arg72Pro polymorphism.
- This genetic polymorphism does not appear to be a contributing factor to pannus-related PVD.
