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Does neuregulin-1 play a role in Type A behavior? The cardiovascular risk in young Finns study.

ABSTRACT: BACKGROUND: Neuregulin-1 proteins are related to physiological correlates of Type A in terms of cardiac reactivity. Furthermore, neuregulin-1 gene (NRG1) may play a role in cardiovascular disease such as atherosclerosis and coronary heart disease i.e. the suggested "outcomes" of Type A behavior. Therefore, NRG1 is hypothesized to be associated with Type A behavior. METHODS: The study examined whether Type A behavior pattern is associated with the single nucleotide polymorphism (SNP) SNP8NRG221533 of the NRG1. The subjects were 631 men and women participating in the population-based Cardiovascular Risk in Young Finns study in 1992 and 2001. Type A was self-assessed with the Framingham Type A Scale and reassessed nine years later. RESULTS: Type A was associated with NRG1 genotype. Carriers of genotype CC scored lower on Type A compared to the others. CONCLUSION: Our study has pinpointed a SNP in NRG1 that predicts Type A behavior. As previous evidence suggests an association for NRG1 with beta-adrenergic stimulation, its role underlying Type A is discussed.

SUBMITTER: Service HM

PROVIDER: S-EPMC2553789 | biostudies-literature | 2008

REPOSITORIES: biostudies-literature

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Does neuregulin-1 play a role in Type A behavior? The cardiovascular risk in young Finns study.

Service Helena M HM Hintsanen Mirka M Hintsa Taina T Lehtimäki Terho T Raitakari Olli T OT Viikari Jorma S JS Keltikangas-Järvinen Liisa L

Behavioral and brain functions : BBF 20080917

<h4>Background</h4>Neuregulin-1 proteins are related to physiological correlates of Type A in terms of cardiac reactivity. Furthermore, neuregulin-1 gene (NRG1) may play a role in cardiovascular disease such as atherosclerosis and coronary heart disease i.e. the suggested "outcomes" of Type A behavior. Therefore, NRG1 is hypothesized to be associated with Type A behavior.<h4>Methods</h4>The study examined whether Type A behavior pattern is associated with the single nucleotide polymorphism (SNP) ...[more]

PMID: 18798975

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Project description:ObjectiveSedentary behaviour may contribute to the development of obesity. We investigated the relations between different types of sedentary behaviour and adiposity markers in a well-characterised adult population after controlling for a wide range of potential confounders.DesignCross-sectional study.SettingThe Cardiovascular Risk in Young Finns Multicenter Study. Participants Sedentary time (TV viewing, computer time, reading, music/radio listening and other relaxation) was assessed with a questionnaire for 1084 women and 909 men aged 30-45 years. Other study variables included occupational and leisure-time physical activity, sleep duration, socioeconomic status, smoking, alcohol consumption, energy intake, adherence to the recommended diet, multiple individual food items, age and genetic variants associated with body mass index (BMI). Primary outcome measures BMI in kg/m(2) and waist circumference (WC in cm).ResultsOf the different sedentary behaviour types, TV viewing was most consistently related to higher BMI and WC, both in men and women. One additional daily TV hour was associated with a 1.81±0.44 cm larger WC in women and 2 cm±0.44 cm in men (both p<0.0001). The association with TV was diluted, but remained highly significant after adjustments with all measured covariates, including several potentially obesogenic food items associated with TV viewing. The intakes of food items such as sausage, beer and soft drinks were directly associated with TV viewing, while the intakes of oat and barley, fish, and fruits and berries were associated indirectly. After these adjustments, non-TV sedentary behaviour remained associated with adiposity indices only in women.ConclusionsOut of the different types of sedentary behaviour, TV viewing was most consistently associated with adiposity markers in adults. Partial dilution of these associations after adjustments for covariates suggests that the obesogenic effects of TV viewing are partly mediated by other lifestyle factors.

Dataset Information

Does neuregulin-1 play a role in Type A behavior? The cardiovascular risk in young Finns study.

Publications

Does neuregulin-1 play a role in Type A behavior? The cardiovascular risk in young Finns study.

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