کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6818015 546997 2016 30 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Salivary latent trait cortisol (LTC): Relation to lipids, blood pressure, and body composition in middle childhood
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی علوم غدد
پیش نمایش صفحه اول مقاله
Salivary latent trait cortisol (LTC): Relation to lipids, blood pressure, and body composition in middle childhood
چکیده انگلیسی
Adversity experienced early in life has the potential to influence physical health later in life. The stress-health relation may be partially explained by stress-related effects on cardiovascular risk factors. This study explored links between individual differences in trait-like variation in the activity of the hypothalamic-pituitary-adrenal (HPA) axis with cardiovascular risk factors in children. 474 children (M age = 9.22 years; 54% female; 83% Caucasian) were included in this study, in which cardiovascular risk was assessed using the following indices − triglycerides (TG), HDL-cholesterol (HDL-C), glucose (Glu); resting systolic and diastolic blood pressure, body mass index (BMI), waist-to-hip ratio, and % fat. Saliva samples were measured 3 times a day (waking, 30 min post-waking and bedtime) over 3 days (later assayed for cortisol). A latent trait cortisol (LTC) factor explained 43% of the variance in cortisol levels within and across days. Confirmatory factor analysis identified three cardiovascular risk factors: lipids (i.e., TG and HDL-C), blood pressure (i.e., systolic and diastolic), and body composition (i.e., BMI, Waist-to-hip ratio, and % fat). Lower salivary LTC was associated with higher lipids, higher blood pressure, and higher body composition. The findings further support the internal and external validity of the LTC construct, and may also advance our understanding of the link between interindividual differences in HPA axis activity and cardiovascular risk in middle childhood.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Psychoneuroendocrinology - Volume 71, September 2016, Pages 110-118
نویسندگان
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