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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

The 460Trp allele of alpha-adducin increases carotid intima-media thickness in young adult males.

BACKGROUND: The 460Trp allele of the alpha-adducin gene (ADD1), which is involved in a form of salt-sensitive hypertension, has been associated with patterns of target organ damage. OBJECTIVES: As carotid artery intima-media thickness (IMT) largely depends upon unknown genetic factors, besides being associated to conventional risk factors, we tested the association of the 460Trp allele of ADD1 with IMT in a well-characterized sample of young healthy normotensive subjects, to assess the role of ADD1 polymorphism without overlapping effects of age or already elevated blood pressure. METHODS: Anthropometric measurements, blood pressure (BP), and carotid artery wall IMT (high-resolution sonography and digitalized morphometry) were obtained in 420 healthy normotensive Caucasian university students. Genotypes for ADD1 were detected by automated genomic polymerase chain reaction (PCR). RESULTS: ADD1 genotypes were evenly distributed between genders. IMT was significantly larger in carriers of the 460Trp allele of ADD1, while a significant gender x ADD1 interaction (P = 0.02) demonstrated that IMT was increased only in males carrying the 460Trp allele (P < 0.001). No significant association was found in females. CONCLUSIONS: The 460Trp allele of ADD1 contributes substantially to increase carotid IMT, in a male hormonal milieu only, at least in the young age range.[1]


  1. The 460Trp allele of alpha-adducin increases carotid intima-media thickness in young adult males. Sarzani, R., Cusi, D., Salvi, F., Barlassina, C., Macciardi, F., Pietrucci, F., Cola, G., Catalini, R., Dal Fiume, C., Dessì-Fulgheri, P., Rappelli, A. J. Hypertens. (2006) [Pubmed]
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