Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UNIPROT:P00750 (PLA)
 16,800 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Platelet membrane glycoprotein IIb/IIIa plays an important role in platelet aggregation. A polymorphism of the gene encoding the IIIa subunit, with the two allele forms PLA1 and PLA2, has been identified. Some, but not all, studies suggest that the PLA2 allele confers an increased risk of suffering a myocardial infarction. Conversely, a recent study suggests that the PLA1 allele may contribute to early atherosclerosis and more rapid progression of stable coronary artery disease. To test whether these associations could be reproduced in a well-characterized sample of survivors of premature myocardial infarction, we examined 369 patients admitted to coronary care units in the Stockholm area who suffered a first myocardial infarction before the age of 60 years. There were no significant differences in extent of coronary artery disease according to PLA genotype group (based on quantitative coronary angiography). In addition, the frequencies of PLA1 and PLA2 alleles did not differ from those of 388 well-matched control subjects without coronary artery disease. These results suggest that the PLA1/PLA2 polymorphism of the platelet glycoprotein IIIa gene does not substantially contribute to the development of coronary atherosclerosis or the genetic susceptibility to premature myocardial infarction.
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PMID:No evidence that the PLA1/PLA2 polymorphism of platelet glycoprotein IIIa is implicated in angiographically characterized coronary atherosclerosis and premature myocardial infarction. 1461 55

The Pl(A) polymorphism of the platelet glycoprotein IIIa gene is associated with altered platelet function and response to antiplatelet drugs. We sought to assess whether the Pl(A) polymorphism influences myocardial salvage achieved by reperfusion therapy in patients with acute myocardial infarction. We analyzed 292 patients enrolled in 2 randomized trials that compared stenting plus abciximab with thrombolysis (alteplase alone or alteplase plus abciximab) in acute myocardial infarction. Patients were genotyped for the Pl (A) polymorphism using polymerase chain reaction with fluorogenic probes. Technetium-99m sestamibi was injected before and 1-2 weeks after reperfusion treatment. The scintigrams enabled the calculation of the initial perfusion defect, final infarct size, and the proportion of initial defect salvaged by reperfusion (salvage index). Clinical follow-up was done up to 18 months after primary treatment. The genotype distribution was as follows: Pl (A2/A2) in 3.4%, Pl (A1/A2) in 24.7% and Pl (A1/A1) in 71.9% of patients. There were no significant differences between Pl( A2) allele carriers and Pl(A1/A1) patients in salvage index (0.4+/-0.50 vs. 0.4+/-0.43, respectively, P=0.48), final infarct size (16.8+/-20.8% vs. 18.4+/-19.1% of left ventricle, respectively, P=0.46) as well as 18-month mortality (8.5% vs.7.1%, respectively, P=0.69). The lack of relationship between Pl(A2) allele and myocardial salvage was observed for both reperfusion strategies, stenting and thrombolysis. Thus, these findings show that the functional Pl(A) polymorphism of platelet glycoprotein IIIa has no influence on the degree of myocardial salvage achieved by reperfusion therapies in patients with acute myocardial infarction.
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PMID:PlA polymorphism of the glycoprotein IIIa and efficacy of reperfusion therapy in patients with acute myocardial infarction. 1469 79

PLA polymorphism of platelet integrin receptor, GpIIIa glycoprotein, (PLA polymorphism of the ITGB3 gene) is associated with the risk of myocardial infarction and CHD especially in young subjects. We analyzed ITGB3 gene polymorphism in patients with acute coronary insufficiency. It was shown that increased AP and altered blood lipid spectrum in the acute period of disease in carriers of the PLA allele (PLA1/PLA2 and PLA2/PLA2 genotypes) can be regarded as manifestations of stress reaction. The data obtained indicate that the PLA2 allele is a predictor of complications of acute coronary insufficiency. This observation is of importance for the choice of adequate therapy for the patients with this disorder.
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PMID:[The influence of ITGB3 gene polymorphism on the frequency of arterial hypertension in patients with acute coronary syndrome]. 2443 79