کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5923851 | 1571177 | 2015 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Female breakfast skippers display a disrupted cortisol rhythm and elevated blood pressure
ترجمه فارسی عنوان
سرپرست خانوار صبحانه یک ریتم کورتیزول مختل شده و فشار خون بالا را نشان می دهد
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کلمات کلیدی
کورتیزول، صبحانه پرش، فشار خون، سلامت قلب و عروق،
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
فیزیولوژی
چکیده انگلیسی
Chronic stress and over-activity in the hypothalamic-pituitary-adrenal (HPA) axis may link breakfast skipping and poor cardiometabolic health. Missing the first major meal of the day in rodents prolongs elevated circulating corticosterone at a time when it's normally decreasing. To extend these findings to humans, we hypothesized that habitual breakfast skippers would display a similar pattern of circulating cortisol and alterations in meal and stress-induced cortisol reactions. Normal weight to obese women aged 18-45 years old who were strictly defined as either breakfast skippers (n = 30) or breakfast eaters (n = 35) were invited to participate in our study. Normal breakfast habits were maintained for the entire study period and each participant attended 4 lab visits. Over the first 2 lab visits, body composition, fasting clinical chemistries, and self-reports of chronic stress were assessed. On each of 2 additional days (lab visits 3 and 4), salivary free cortisol was measured at home upon waking and at bedtime, and in the lab in response to a standard lunch, ad libitum afternoon snack buffet, and stress and control (relaxation) tasks. The order of the control and stress test visits was randomized. While body weight, body composition, HOMA-IR, total and HDL cholesterol did not statistically differ (p > 0.05), both diastolic and systolic blood pressure was elevated (p < 0.01) and LDL cholesterol was lower (p = 0.04) in the breakfast skipper group. Compared to the breakfast eaters and on the control task visit only, breakfast skippers had higher circulating cortisol from arrival to midafternoon (p < 0.01) and during the snack buffet (p < 0.05). Furthermore, the lunch-induced cortisol reaction was larger in the 'skippers' (p = 0.03). On both stress and control visit days, the diurnal cortisol amplitude was significantly (p = 0.02) blunted in breakfast skippers. Self-reports of chronic stress did not differ between the groups. These data indicate that habitually skipping breakfast is associated with stress-independent over-activity in the HPA axis which, if prolonged, may increase risk (e.g., hypertension) for cardiometabolic disease in some people.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physiology & Behavior - Volume 140, 1 March 2015, Pages 215-221
Journal: Physiology & Behavior - Volume 140, 1 March 2015, Pages 215-221
نویسندگان
Megan Witbracht, Nancy L. Keim, Shavawn Forester, Adrianne Widaman, Kevin Laugero,