Clonidine improves spontaneous baroreflex sensitivity in conscious mice
نویسندگان
چکیده
منابع مشابه
Clonidine improves spontaneous baroreflex sensitivity in conscious mice through parasympathetic activation.
Alpha-2 adrenoceptors are important in baroreflex regulation. We tested the impact of alpha-2 adrenoceptors on heart rate variability (HRV) and spontaneous baroreflex sensitivity (BRS) in conscious mice with telemetry (TA11PA-C20). Baseline beat-to-beat measurements (2 hours between 8:00 am to 12:00 pm) were compared with measurements after intraperitoneal alpha-2 adrenoceptor blockade (yohimbi...
متن کاملAssessment of spontaneous baroreflex sensitivity in neonates.
AIMS To determine whether it is possible to assess baroreflex sensitivity in neonates by studying only spontaneous variation in systolic blood pressure and heart rate. METHODS ECG and non-invasive blood pressure signals were continuously studied in 14 preterm neonates (term 29-32 weeks) and five term neonates (term 40-41 weeks). Non-invasive blood pressure measures were obtained using a Finap...
متن کاملSpontaneous baroreflex sensitivity in (pre)adolescents.
OBJECTIVE To present normal spontaneous baroreflex sensitivity (BRS) values and investigate the influence of posture, sex, age, pubertal stage, body mass index (BMI), and physical activity level on BRS in (pre)adolescents. BRS is a sensitive measure of both sympathetic and parasympathetic cardiovascular regulation that may help detect early subclinical autonomic dysfunction. DESIGN A cross-se...
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The Bainbridge reflex, i.e., the effect of rapid saline infusion (1.1 +/- 0.1 liters) on heart rate and arterial and atrial blood pressures, was examined in 12 intact conscious dogs; mean arterial blood pressure rose by 33 +/- 3 (SE) mm Hg, mean atrial pressure by 14 +/- 1 mm Hg, and heart rate by 75 +/- 9 beats/min. After beta-receptor blockade, heart rate rose slightly less (+49 +/- 5 beats/m...
متن کاملRelationship between spontaneous sympathetic baroreflex sensitivity and cardiac baroreflex sensitivity in healthy young individuals.
Low baroreflex sensitivity (BRS) is associated with elevated cardiovascular risk. However, the evidence is based primarily on measurements of cardiac BRS. It cannot be assumed that cardiac or sympathetic BRS alone represent a true reflection of baroreflex control of blood pressure. The aim of this study was to examine the relationship between spontaneous sympathetic and cardiac BRS in healthy, ...
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ژورنال
عنوان ژورنال: American Journal of Hypertension
سال: 2003
ISSN: 0895-7061
DOI: 10.1016/s0895-7061(03)00380-7