Sympathetic neural regulation of blood pressure: influences of sex and aging.
نویسندگان
چکیده
Sex and age have important influences on sympathetic neural control of blood pressure in humans. Young women are relatively protected against risk of hypertension due to greater peripheral vasodilator influences compared with young men and older people. This protective effect is lost at menopause. Older men and women have higher sympathetic nerve activity and tighter coupling between SNA and blood pressure, contributing to the increased risk of hypertension with aging.
منابع مشابه
Hypertension Highlights Sympathetic Nervous System and Blood Pressure in Humans Individualized Patterns of Regulation and Their Implications
The autonomic nervous system and its sympathetic arm play important roles in the regulation of blood pressure.1–3 Their role in the short-term regulation of blood pressure, especially in responses to transient changes in arterial pressure, via baroreflex mechanisms is well known.4 However, the role of the sympathetic branch in longer-term (days, months, and years) blood pressure regulation has ...
متن کاملSympathetic nervous system and blood pressure in humans: individualized patterns of regulation and their implications.
The autonomic nervous system and its sympathetic arm play important roles in the regulation of blood pressure.1–3 Their role in the short-term regulation of blood pressure, especially in responses to transient changes in arterial pressure, via baroreflex mechanisms is well known.4 However, the role of the sympathetic branch in longer-term (days, months, and years) blood pressure regulation has ...
متن کاملTonic and reflex control of the cardio-respiratory system by neurons in the ventral medulla
To investigate the channels and neurotransmitters in the ventrolateral medulla (VLM) oblongata that are responsible for the maintenance of sympathetic tone and cardio-respiratory reflex regulation. Microinjections of excitant amino acid (glutamate, 100 nl, 100 mM), calcium channel blockers, agonists and antagonists were made throughout the VLM in anaesthetized rats. Arterial blood pressure, sym...
متن کاملTonic and reflex control of the cardio-respiratory system by neurons in the ventral medulla
To investigate the channels and neurotransmitters in the ventrolateral medulla (VLM) oblongata that are responsible for the maintenance of sympathetic tone and cardio-respiratory reflex regulation. Microinjections of excitant amino acid (glutamate, 100 nl, 100 mM), calcium channel blockers, agonists and antagonists were made throughout the VLM in anaesthetized rats. Arterial blood pressure, sym...
متن کاملEffect of Reversible Inactivation of the Kolliker Fuse Nucleus on Basal Blood Pressure and Heart Rate in Anesthetized Rat
Introduction: Several supra spinal areas such as rostral ventrolateral medulla (RVLM) area are involved in basic cardiovascular regulation. The Kolliker— Fuse nucleus (KF) is located in pons and is heavily connected with RVLM. The cardiovascular effect of KF nucleus has been shown and it is suggested that KF is involved in sympathetic vasomotor tone and basic cardiovascular regulation. Therefor...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Physiology
دوره 29 1 شماره
صفحات -
تاریخ انتشار 2014