Abstract | OBJECTIVE: To assess whether renin- angiotensin- aldosterone (RAA) system gene polymorphisms shown to be associated with alterations in the activity of the system, may predict cardiac function changes subsequent to initiating medical therapy in heart failure. METHODS: RESULTS: RAA system genotypes were not significantly associated with LVEF prior to initiating medical therapy. However, the CYP11B2 gene variant (P=0.0064 on covariate analysis [adjusted for multiple genotyping] with a 1-2% chance of false positive data), but neither the ACE, nor the AGT variants, predicted improvement in LV ejection fraction in patients on medical therapy. CONCLUSION: A CYP11B2 gene variant predicts the variable improvement in LV ejection fraction that occurs subsequent to initiating medical therapy in IDC. These data suggest a role for the aldosterone synthase locus in regulating the progression of heart failure.
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Authors | Armindo D Tiago, Danelle Badenhorst, Daniel Skudicky, Angela J Woodiwiss, Geoffrey P Candy, Richard Brooksbank, Karen Sliwa, Pinhas Sareli, Gavin R Norton |
Journal | Cardiovascular research
(Cardiovasc Res)
Vol. 54
Issue 3
Pg. 584-9
(Jun 2002)
ISSN: 0008-6363 [Print] England |
PMID | 12031704
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Angiotensin-Converting Enzyme Inhibitors
- Diuretics
- Enzyme Inhibitors
- Angiotensinogen
- Digoxin
- Furosemide
- Cytochrome P-450 CYP11B2
- Peptidyl-Dipeptidase A
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Topics |
- Angiotensin-Converting Enzyme Inhibitors
(therapeutic use)
- Angiotensinogen
(genetics)
- Cardiomyopathy, Dilated
(enzymology, pathology, physiopathology)
- Case-Control Studies
- Cytochrome P-450 CYP11B2
(genetics)
- Digoxin
(therapeutic use)
- Diuretics
(therapeutic use)
- Echocardiography
- Enzyme Inhibitors
(therapeutic use)
- Female
- Furosemide
(therapeutic use)
- Heart Ventricles
(pathology)
- Humans
- Logistic Models
- Male
- Middle Aged
- Peptidyl-Dipeptidase A
(genetics)
- Polymorphism, Genetic
- Radionuclide Ventriculography
- Stroke Volume
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