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Related Concept Videos

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Hypertension, the most common cardiovascular disease, is diagnosed through repeated measurements of elevated blood pressure. Its risks, including damage to the kidney, heart, and brain, are directly proportional to blood pressure levels. Starting from 115/75 mm Hg, the risk of cardiovascular disease doubles with each increment of 20/10 mm Hg. The diagnosis relies on blood pressure measurements, not on patient symptoms, as hypertension is often asymptomatic until end-organ damage is imminent or...
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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,...
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Hypertension I: Introduction01:28

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Hypertension is a widespread, long-term medical condition where blood pressure in the arteries remains elevated. It is characterized by systolic blood pressure readings of 130 mm Hg or above or diastolic blood pressure (DBP) readings of 80 mm Hg or higher. Unmanaged hypertension poses significant health risks, making the distinction between primary (or essential) hypertension and secondary hypertension crucial, as their management and implications vary.Primary HypertensionPrimary hypertension,...
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Hypertension III: Clinical Manifestations and Diagnostic Studies01:30

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Hypertension is asymptomatic and also referred to as the "silent killer" until it progresses to a severe stage or causes target organ disease. Patients may experience symptoms stemming from the strain on blood vessels and tissues in various organs or the heart's increased workload.Physical exams might show no abnormalities other than high blood pressure. Signs of vascular damage, when present, correspond to the organs supplied by the affected vessels, leading to target organ damage. For...
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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.
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Visualizing Leukocyte Rolling and Adhesion in Angiotensin II-Infused Mice: Techniques and Pitfalls
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Inflammation in Hypertension.

Liang Xiao1, David G Harrison1

  • 1Departments of Medicine, Pharmacology, and Physiology, and Division of Clinical Pharmacology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA.

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|May 12, 2020
PubMed
Summary
This summary is machine-generated.

Inflammation plays a key role in hypertension pathogenesis. New research highlights immune cell involvement and suggests targeting inflammation may offer novel therapeutic strategies for hypertension management.

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Area of Science:

  • Cardiovascular Science
  • Immunology
  • Nephrology

Background:

  • Accumulating evidence over 50 years links inflammation to hypertension development.
  • Immune cells and inflammatory biomarkers are elevated in hypertensive individuals.
  • Hypertension involves complement activation, inflammasome activity, and altered immune cell phenotypes.

Purpose of the Study:

  • To explore the role of immune cells and inflammation in hypertension.
  • To identify novel immune cell subclasses involved in hypertension pathogenesis.
  • To investigate potential therapeutic targets based on inflammatory pathways.

Main Methods:

  • Analysis of immune cell presence in hypertensive subjects.
  • Measurement of inflammatory biomarkers (e.g., C-reactive protein, cytokines).
  • High-dimensional transcriptomic analysis of immune cells.

Main Results:

  • Immune cells, particularly myeloid cells, are implicated in hypertension.
  • Transcriptomic data reveals distinct, injurious immune cell subclasses.
  • Inflammatory events are interconnected, engaging the adaptive immune system.

Conclusions:

  • Inflammation is a critical driver of hypertension pathogenesis.
  • Understanding immune cell roles offers new therapeutic avenues.
  • Inflammatory biomarker levels could guide treatment for end-organ damage.