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Related Concept Videos

Disorders of the Autonomic Nervous System01:18

Disorders of the Autonomic Nervous System

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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...
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Pathophysiology of Heart Failure01:17

Pathophysiology of Heart Failure

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Heart failure (HF) is a progressive syndrome involving ventricles that leads to inadequate cardiac output. It can be classified based on location and output or ejection fraction. Ejection fraction (EF) is an essential measurement in the diagnosis and surveillance of HF. Reduced EF corresponds to systolic heart failure (HFrEF). However, HF with preserved ejection fraction (HFpEF) is becoming increasingly prevalent. Also known as diastolic HF, this form of HF is related to aging. The...
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Autoregulation of Blood Flow01:17

Autoregulation of Blood Flow

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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
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Regulation of Heart Rates01:31

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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...
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Neural Regulation of Blood Pressure01:18

Neural Regulation of Blood Pressure

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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...
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Pathophysiology of Cardiac Performance01:29

Pathophysiology of Cardiac Performance

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Typical heart performance is influenced by heart rate, rhythm, myocardial contraction, and metabolism or blood flow. The cardiac muscle exhibits distinct electrophysiological features, including pacemaker activity and calcium channel control, which play a vital role in the heart's response to various drugs. The autonomic nervous system, comprising the sympathetic and parasympathetic branches, regulates heart rate. Sympathetic activation increases heart rate, while parasympathetic activation...
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Updated: Jun 15, 2025

Comprehensive Autopsy Program for Individuals with Multiple Sclerosis
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Current understanding of cardiovascular autonomic dysfunction in multiple sclerosis.

Insha Zahoor1, Guodong Pan2, Mirela Cerghet1

  • 1Department of Neurology, Henry Ford Health, Detroit, MI, USA.

Heliyon
|August 22, 2024
PubMed
Summary

Multiple sclerosis (MS) increases cardiovascular disease (CVD) risk due to inflammation. More research is needed to understand immune system effects on heart health in MS patients and guide treatment.

Keywords:
Autonomic nervous system dysfunctionCardiovascular diseasesComorbidityEpidemiologyExperimental autoimmune encephalomyelitisMultiple sclerosisPrevalence

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Area of Science:

  • Immunology
  • Neurology
  • Cardiology

Background:

  • Autoimmune diseases like multiple sclerosis (MS) are linked to increased cardiovascular disease (CVD) risk.
  • Systemic inflammation and immune responses in MS can cause autonomic nervous system dysfunction, leading to cardiovascular abnormalities.
  • CVD can exacerbate MS progression by affecting brain structures like white matter.

Purpose of the Study:

  • To review the prevalence of CVD in MS patients.
  • To highlight the need for preclinical studies on MS-related cardiac damage.
  • To emphasize understanding the etiopathogenesis of immune-mediated cardiac dysfunction in MS.

Main Methods:

  • Literature review of existing studies on MS and CVD.
  • Analysis of the impact of MS on cardiovascular health.
  • Identification of research gaps in understanding immune cell involvement in cardiac pathology.

Main Results:

  • The prevalence and mortality rates of CVD in MS patients are not well-established.
  • Vascular risk factor management is crucial for MS patient care.
  • Current research lacks detailed studies on the temporal effects of immune cells on cardiac damage in MS.

Conclusions:

  • Further investigation into the clinical presentation and mechanisms of CVD in MS is essential.
  • Preclinical animal models are needed to elucidate MS-related cardiac pathogenesis.
  • Clinicians must monitor for cardiovascular complications and medication side effects in MS patients.