BACKGROUND: Polymorphisms of the upstream transcription factor 1 (USF1) have been associated with familial combined hyperlipidemia and coronary heart disease. The impact of this gene on subclinical atherosclerosis is unknown. Associations of 3 allelic variants of the USF1 gene and their haplotypes with carotid artery intima - media thickness (IMT), carotid artery compliance (CAC) and brachial artery flow mediated dilatation (FMD) were studied in a population of Finnish healthy young adults. METHODS AND RESULTS: The study population comprised 2,281 individuals participating in the Cardiovascular Risk in Young Finns study. IMT, CAC and FMD values were measured by ultrasound examination. Genotypes were analysed using the 5' nuclease assay. A significant difference in IMT was found for usf1s1 (rs3737787) and usf1s8 (rs2516838) genotypes (p-values 0.046 and 0.021, respectively). Moreover, there was a significant difference between groups in haplotype 1 and haplotype 2 for IMT (p-values 0.011 and 0.028 respectively). In multivariate stepwise linear regression models adjusted by age, sex, body mass index, systolic and diastolic blood pressures, smoking, C-reactive protein, glucose, high- and low-density lipoprotein-cholesterols and triglycerides there were significant associations for the usf1s1 minor genotype AA to predict low IMT (p=0.038) and usf1s8 minor genotype GG to predict high IMT (p=0.003). There was also a significant association for haplotype 2 to predict low IMT in the otherwise similar multivariate model (p=0.006). No associations were found for polymorphisms and CAC, FMD or serum lipids. CONCLUSIONS: The rs2516838 and rs3737787 polymorphisms of USF1 influence the carotid artery IMT, which is a new finding.
BACKGROUND: Polymorphisms of the upstream transcription factor 1 (USF1) have been associated with familial combined hyperlipidemia and coronary heart disease. The impact of this gene on subclinical atherosclerosis is unknown. Associations of 3 allelic variants of the USF1 gene and their haplotypes with carotid artery intima - media thickness (IMT), carotid artery compliance (CAC) and brachial artery flow mediated dilatation (FMD) were studied in a population of Finnish healthy young adults. METHODS AND RESULTS: The study population comprised 2,281 individuals participating in the Cardiovascular Risk in Young Finns study. IMT, CAC and FMD values were measured by ultrasound examination. Genotypes were analysed using the 5' nuclease assay. A significant difference in IMT was found for usf1s1 (rs3737787) and usf1s8 (rs2516838) genotypes (p-values 0.046 and 0.021, respectively). Moreover, there was a significant difference between groups in haplotype 1 and haplotype 2 for IMT (p-values 0.011 and 0.028 respectively). In multivariate stepwise linear regression models adjusted by age, sex, body mass index, systolic and diastolic blood pressures, smoking, C-reactive protein, glucose, high- and low-density lipoprotein-cholesterols and triglycerides there were significant associations for the usf1s1 minor genotype AA to predict low IMT (p=0.038) and usf1s8 minor genotype GG to predict high IMT (p=0.003). There was also a significant association for haplotype 2 to predict low IMT in the otherwise similar multivariate model (p=0.006). No associations were found for polymorphisms and CAC, FMD or serum lipids. CONCLUSIONS: The rs2516838 and rs3737787 polymorphisms of USF1 influence the carotid artery IMT, which is a new finding.
Authors: Sulin Wu; Rebecca Mar-Heyming; Eric Z Dugum; Nicholas A Kolaitis; Hongxiu Qi; Päivi Pajukanta; Lawrence W Castellani; Aldons J Lusis; Thomas A Drake Journal: Hum Mol Genet Date: 2009-12-08 Impact factor: 6.150
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Authors: Yue-Mei Fan; Jussi Hernesniemi; Niku Oksala; Mari Levula; Emma Raitoharju; Auni Collings; Nina Hutri-Kähönen; Markus Juonala; Jukka Marniemi; Leo-Pekka Lyytikäinen; Ilkka Seppälä; Ari Mennander; Matti Tarkka; Antti J Kangas; Pasi Soininen; Juha Pekka Salenius; Norman Klopp; Thomas Illig; Tomi Laitinen; Mika Ala-Korpela; Reijo Laaksonen; Jorma Viikari; Mika Kähönen; Olli T Raitakari; Terho Lehtimäki Journal: Sci Rep Date: 2014-04-11 Impact factor: 4.379