Impaired circadian modulation of sympathovagal activity in diabetes. A possible explanation for altered temporal onset of cardiovascular disease
| العنوان: | Impaired circadian modulation of sympathovagal activity in diabetes. A possible explanation for altered temporal onset of cardiovascular disease |
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| المؤلفون: | A. Calciati, Giorgio Finardi, Pierangelo Lazzari, Luciano Bernardi, M R Ferrari, I Vandea, Soldà Pl, L. Ricordi, Pietro Fratino |
| المصدر: | Circulation. 86:1443-1452 |
| بيانات النشر: | Ovid Technologies (Wolters Kluwer Health), 1992. |
| سنة النشر: | 1992 |
| مصطلحات موضوعية: | Adult, Male, medicine.medical_specialty, Sympathetic Nervous System, Disease, Diabetic Neuropathies, Risk Factors, Physiology (medical), Diabetes mellitus, Internal medicine, Heart rate, medicine, Humans, Heart rate variability, Circadian rhythm, Balance (ability), medicine.diagnostic_test, business.industry, Reproducibility of Results, Signal Processing, Computer-Assisted, Vagus Nerve, medicine.disease, Circadian Rhythm, Diabetes Mellitus, Type 1, Endocrinology, Autonomic Nervous System Diseases, Diabetes Mellitus, Type 2, Cardiovascular Diseases, Electrocardiography, Ambulatory, Female, Cardiology and Cardiovascular Medicine, business, Complication, Electrocardiography |
| الوصف: | BACKGROUND Diabetic subjects have a high incidence of cardiovascular accidents, with an altered circadian distribution. Abnormalities in the circadian rhythm of autonomic tone may be responsible for this altered temporal onset of cardiovascular disease. METHODS AND RESULTS To assess circadian changes of sympathovagal balance in diabetes, we performed 24-hour power spectral analysis of RR interval fluctuations in 54 diabetic subjects (age, 44 +/- 2 years) with either normal autonomic function or mild to severe autonomic neuropathy and in 54 age-matched control subjects. The power in the low-frequency (LF, 0.03-0.15 Hz) and high-frequency (HF, 0.18-0.40 Hz) bands was considered an index of relative sympathetic and vagal activity, respectively. Diabetic subjects with autonomic abnormalities showed a reduction in LF compared with control subjects (5.95 +/- 0.12 In-msec2 versus 6.73 +/- 0.11, p < 0.001) and an even greater reduction in LF, particularly during the night and the first hours after awakening (5.11 +/- 0.18 In-msec2 versus 6.52 +/- 0.14, p < 0.001). Day-night rhythm in sympathovagal balance was reduced or absent in diabetic subjects compared with control subjects. CONCLUSIONS Diabetic subjects with or without signs of autonomic neuropathy have a decreased vagal activity (and hence a relatively higher sympathetic activity) during night hours and at the same time of the day, during which a higher frequency of cardiovascular accidents has been reported. These observations may provide insight into the increased cardiac risk of diabetic patients, particularly if autonomic neuropathy is present. |
| تدمد: | 1524-4539 0009-7322 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c2c4b402eac95200ebb6815330733e8Test https://doi.org/10.1161/01.cir.86.5.1443Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....4c2c4b402eac95200ebb6815330733e8 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15244539 00097322 |
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