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Related Concept Videos

Disorders of the Autonomic Nervous System01:18

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.
Raynaud's disease, also known as Raynaud's phenomenon, is a...
Autoregulation of Blood Flow01:17

Autoregulation of Blood Flow

Autoregulation mechanisms are characterized by their inherent capacity for self-regulation without necessitating specific nervous stimulation or endocrine control. These mechanisms facilitate the adjustment of blood flow and, therefore, perfusion specific to each tissue region. This self-regulation encompasses chemical signals and myogenic controls.
Chemical Signaling in Autoregulation
Chemical signaling operates at the precapillary sphincter level, inciting either contraction or relaxation.
Neural Regulation of Blood Pressure01:18

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...
Hypertension II: Pathophysiology01:29

Hypertension II: Pathophysiology

Hypertension is a chronic condition in which the blood's force against artery walls is excessively high, posing risks such as heart disease. The condition's underlying mechanisms involve complex interactions among the cardiovascular, kidney, and autonomic nervous systems.Renin-Angiotensin-Aldosterone System (RAAS): This system significantly influences blood pressure regulation. When blood pressure decreases, the kidneys secrete renin. This enzyme transforms angiotensinogen, a plasma protein,...
Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation01:21

Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation

Clinical manifestationsPeripheral Arterial Disease (PAD) manifests through a range of symptoms, from the characteristic intermittent claudication to atypical presentations and severe complications in advanced stages. Intermittent claudication, a hallmark symptom of PAD, presents as exercise-induced muscle pain that typically resolves within minutes of rest. This pain is reproducible and stems from inadequate blood flow, leading to the accumulation of lactic acid produced during anaerobic...
The Parasympathetic Nervous System01:14

The Parasympathetic Nervous System

Overview

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Related Experiment Video

Updated: Jun 4, 2026

3D-Neuronavigation In Vivo Through a Patient's Brain During a Spontaneous Migraine Headache
10:39

3D-Neuronavigation In Vivo Through a Patient's Brain During a Spontaneous Migraine Headache

Published on: June 2, 2014

Autonomic dysfunction and endothelial changes in migraine sufferers.

A Rossato1, F Veronese, F Maggioni

  • 1Department of Cardiological, Thoracic and Vascular Sciences, University of Padua, Padua, Italy.

Panminerva Medica
|February 25, 2011
PubMed
Summary
This summary is machine-generated.

Migraine patients exhibit impaired endothelial function and increased intima-media thickness, linked to autonomic nervous system changes. These autonomic dysfunctions may contribute to vascular alterations in migraineurs.

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Assessment of Vascular Tone Responsiveness using Isolated Mesenteric Arteries with a Focus on Modulation by Perivascular Adipose Tissues
08:41

Assessment of Vascular Tone Responsiveness using Isolated Mesenteric Arteries with a Focus on Modulation by Perivascular Adipose Tissues

Published on: June 3, 2019

Related Experiment Videos

Last Updated: Jun 4, 2026

3D-Neuronavigation In Vivo Through a Patient's Brain During a Spontaneous Migraine Headache
10:39

3D-Neuronavigation In Vivo Through a Patient's Brain During a Spontaneous Migraine Headache

Published on: June 2, 2014

Assessment of Vascular Tone Responsiveness using Isolated Mesenteric Arteries with a Focus on Modulation by Perivascular Adipose Tissues
08:41

Assessment of Vascular Tone Responsiveness using Isolated Mesenteric Arteries with a Focus on Modulation by Perivascular Adipose Tissues

Published on: June 3, 2019

Area of Science:

  • Neurology
  • Cardiovascular Medicine
  • Vascular Biology

Background:

  • Migraine is a complex neurological disorder.
  • Endothelial dysfunction and early atherosclerosis are potential complications.
  • Autonomic nervous system involvement is increasingly recognized.

Purpose of the Study:

  • To assess endothelial function (flow-mediated dilation, FMD) and atherosclerotic changes (intima-media thickness, IMT) in migraineurs without traditional risk factors.
  • To evaluate autonomic function in migraine patients.
  • To explore correlations between autonomic dysfunction and vascular modifications.

Main Methods:

  • Compared 20 migraine patients with 20 matched controls.
  • Utilized echo-color-Doppler imaging for IMT (carotid) and FMD (brachial artery).
  • Assessed autonomic function via Tilt, Lying-to-Standing, Valsalva, Hand grip, Deep breath, Stroop, and Sweat tests.

Main Results:

  • Migraineurs showed significantly lower FMD and higher IMT compared to controls.
  • Autonomic dysfunction was evident in migraine patients across multiple tests (Tilt, Valsalva, Hand Grip, Deep Breath, Stroop).
  • Reduced FMD correlated with observed autonomic changes.

Conclusions:

  • Autonomic dysfunctions appear to alter vascular reactivity in migraine sufferers.
  • These autonomic changes may be a key factor leading to endothelial dysfunction and intima-media thickening in migraine.
  • The findings highlight a link between the autonomic nervous system and vascular health in migraine.