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Regulation of the Cardiovascular System

Regulation of the Cardiovascular System

The regulation of the cardiovascular system allows the body to adapt to various demands and maintain homeostasis.
The regulation of the cardiovascular system involves the autonomic nervous system (ANS), baroreceptors, and chemoreceptors, ensuring that heart rate and blood pressure are appropriately modulated in response to varying physiological demands.
The ANS comprises two main divisions: the sympathetic and parasympathetic nervous systems. The sympathetic nervous system enhances...

Regulation of Heart Rates

Regulation of Heart Rates

The regulation of heart rate is a complex process controlled by the autonomic nervous system (ANS), hormonal influences, and intrinsic cardiac mechanisms. The ANS has two main components: the sympathetic nervous system (SNS) and the parasympathetic nervous system (PNS).
The SNS increases heart rate through the release of norepinephrine and epinephrine, which act on beta-1 adrenergic receptors in the heart. This action increases the rate of depolarization in the sinoatrial (SA) node, the heart's...

Neural Regulation of Blood Pressure

Neural Regulation of Blood Pressure

The neural regulation of blood pressure involves intricate interactions between the autonomic nervous system (ANS) and cardiovascular system, ensuring adequate perfusion of tissues. This regulation primarily occurs through baroreceptor and chemoreceptor reflexes, involving both short-term and long-term mechanisms.
Baroreceptor Reflex
Baroreceptors, located in the carotid sinuses and aortic arch, detect changes in blood pressure. When blood pressure rises, these stretch-sensitive receptors...

Disorders of the Autonomic Nervous System

Disorders of the Autonomic Nervous System

The autonomic nervous system (ANS) is an intricate network of nerves that controls functions such as the regulation of heart rate, digestion, and blood pressure regulation. When this system malfunctions, it can lead to various disorders that affect multiple bodily functions. One common feature of many autonomic disorders is the involvement of smooth blood vessels, which play a crucial role in regulating blood flow throughout the body.
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Heart Failure Drugs: Inhibitors of Renin-Angiotensin System

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The activation of the sympathetic nervous system and the renin-angiotensin-aldosterone system (RAAS) contributes to cardiac remodeling, and inhibiting the RAAS is a pharmacological target in heart failure management. As a result, neurohumoral modulation is a crucial treatment principle for managing heart failure. This approach involves using medications like ACE inhibitors (ACEIs), angiotensin receptor blockers (ARBs), β-blockers, mineralocorticoid receptor antagonists (MRAs), and neutral...

Sympathetic Signaling

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Sympathetic signaling, a vital part of the autonomic nervous system, plays a crucial role in mobilizing the body's resources in response to stress or emergencies. It involves the transmission of nerve impulses from sympathetic preganglionic fibers to postganglionic fibers. This results in the release of specific neurotransmitters and activation of adrenergic receptors.
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Related Experiment Video

Updated: Oct 8, 2025

Quantifying Acute Changes in Renal Sympathetic Nerve Activity in Response to Central Nervous System Manipulations in Anesthetized Rats

Quantifying Acute Changes in Renal Sympathetic Nerve Activity in Response to Central Nervous System Manipulations in Anesthetized Rats

Published on: September 11, 2018

Device-Based Sympathetic Nerve Regulation for Cardiovascular Diseases.

Le Li¹, Zhao Hu¹, Yulong Xiong¹

¹National Center for Cardiovascular Diseases, Peking Union Medical College, Chinese Academy of Medical Sciences, Fu Wai Hospital, Beijing, China.

Frontiers in Cardiovascular Medicine

|December 27, 2021

Summary

Device-based sympathetic nerve regulation is a promising therapy for cardiovascular diseases (CVDs). Techniques like renal denervation show effectiveness in managing resistant hypertension, heart failure, and arrhythmias.

Keywords:

arrythmia denervation device-based therapy heart failure hypertension sympathetic nervous system

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Quantifying Acute Changes in Renal Sympathetic Nerve Activity in Response to Central Nervous System Manipulations in Anesthetized Rats

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Published on: December 22, 2020

Area of Science:

Cardiology
Medical Devices
Neurology

Background:

Sympathetic overactivation exacerbates cardiovascular diseases (CVDs) by promoting ventricular remodeling, endothelial injury, and plaque progression.
Device-based sympathetic nerve (SN) regulation presents a novel therapeutic avenue for managing CVDs.

Purpose of the Study:

To review the pathophysiological basis and current clinical evidence for device-based therapies targeting sympathetic overactivation in CVDs.
To highlight emerging device-based SN regulation strategies beyond renal denervation.

Main Methods:

Review of existing literature on device-based sympathetic nerve modulation for cardiovascular conditions.
Analysis of clinical trial data for therapies such as renal denervation (RDN), pulmonary artery denervation (PADN), hepatic artery denervation (HADN), and splenic artery denervation (SADN).

Main Results:

Renal denervation (RDN) is validated in resistant hypertension and shows promise in heart failure and arrhythmias.
Pulmonary artery denervation (PADN) effectively manages pulmonary hypertension.
Emerging techniques like HADN and SADN are under investigation for metabolic and inflammatory-immune CVDs, with ongoing first-in-man studies.

Conclusions:

Device-based SN regulation offers a viable therapeutic strategy for various CVDs.
Continued research into novel denervation techniques and other device-based therapies is crucial for advancing cardiovascular care.