Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/49340
Title: Association of angiotensinogen M235T and A(-6)G gene polymorphisms with coronary heart disease with independence of essential hypertension: The PROCAGENE study
Authors: Rodríguez-Pérez, José C. 
Rodríguez-Esparragón, Francisco 
Hernández-Perera, Octavio
Anabitarte, Aranzazu
Losada, Antonio
Medina, Alfonso
Hernández, Enrique
Fiuza, Dolores
Avalos, Octavio
Yunis, Carla
Ferrario, Carlos M.
UNESCO Clasification: 32 Ciencias médicas
320501 Cardiología
Keywords: Angiotensinogen m235t
Coronary heart disease
Hypertension
PROCAGENE Study
Issue Date: 2001
Journal: Journal of the American College of Cardiology 
Abstract: OBJECTIVES We examined the relationship between the angiotensinogen (AGT) gene M235T polymorphism, the variant promoter of the AGT gene A(-6)G and the angiotensin-converting enzyme (ACE) gene insertion/deletion (I/D) polymorphism and coronary heart disease (CHD) in native Gran Canaria Island habitants, who have the highest rates of CHD in Spain. BACKGROUND Some studies subject that the ACE (I/D) polymorphism could be associated with CHD, while AGT (M235T) has been related to essential hypertension. METHODS We studied 304 subjects with angiographic evidence of coronary artery disease and a clinical diagnosis of myocardial infarction or unstable angina and 315 age- and gender-matched controls. Blood was drawn and DNA extracted. Angiotensin-converting enzyme (I/D) gene polymorphism was analyzed by polymerase chain reaction (PCR) and AGT gene polymorphisms by restriction fragment length polymorphism-PCR and mutagenically-separated PCR. RESULTS The ACE (I/D) polymorphism showed no association with CHD, whereas the frequency distribution of AGT (M235T) genotypes among patients and controls (235T: 29.1% and 19.0%; M235T: 48.5% and 50.2%; M235: 22.4% and 30.8%, respectively) was statistically different (p = 0.005) and not related to the presence of essential hypertension. Similar results were observed with the AGT A(-6)G polymorphism. In multiple logistic regression analysis, CHD odds ratio associated with 235T and M235 homozygotes were 1.7 (1.1 to 2.6) and 0.54 (0.36 to 0.82), respectively. CONCLUSIONS This study shows that genetic variation of the AGT (M235T), but not the ACE (I/D), genotypes contributes to the presence of CHD independently of blood pressure profile in a subset of the Spanish population with a high prevalence of cardiovascular disease.
URI: http://hdl.handle.net/10553/49340
ISSN: 0735-1097
DOI: 10.1016/S0735-1097(01)01186-X
Source: Journal of the American College of Cardiology[ISSN 0735-1097],v. 37 (7594), p. 1536-1542 (Mayo 2001)
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