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Related Concept Videos

Drugs Used in Lower Respiratory Disorders: Overview01:17

Drugs Used in Lower Respiratory Disorders: Overview

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Lower respiratory tract disorders present challenges that often require skilled and nuanced approaches for effective management. Common ailments, such as asthma and chronic obstructive pulmonary disease (COPD), have prompted the development of intricate treatment strategies involving bronchodilators and anti-inflammatory drugs, each tailored to ease breathing and revitalize the lungs.
Bronchodilators, the first step of respiration enhancement, come in various forms, each with its own mechanism...
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Antiasthma Drugs: Leukotriene Modifiers01:19

Antiasthma Drugs: Leukotriene Modifiers

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Leukotriene modifiers, or cysteinyl leukotriene receptor antagonists, are medications used to manage chronic asthma. These agents target specific inflammatory mediators produced during arachidonic acid metabolism, an essential process in generating inflammation in the body.
Leukotriene modifiers work through two distinct mechanisms:
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Drugs Used in Upper Respiratory Disorders: Overview01:16

Drugs Used in Upper Respiratory Disorders: Overview

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Upper respiratory tract disorders, including viral infections and allergic rhinitis, cause significant discomfort and disrupt daily life. Managing these conditions involves a variety of drugs, such as antihistamines, intranasal steroids, decongestants, antitussives, expectorants, and mucolytics. Specific examples of drugs in each category are provided.
Antihistamines (e.g., Benadryl) block histamines from binding. Histamines are chemicals released during an allergic reaction in the body. As a...
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Lipid-derived Compounds in the Human Body01:31

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Fats and lipids are crucial components in the human body. Some lipid-derived compounds, such as fat-soluble vitamins, eicosanoids, lipoproteins, and glycolipids, also play unique roles to support various  biological processes .
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Fat-soluble vitamins, including vitamins A, D, E, and K, are required in minimal quantities, but their deficiencies can lead to severely abnormal physiological conditions. For example, vitamin A deficiency can cause night blindness, dry skin,...
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Chronic Obstructive Pulmonary Disease-II: Pathophysiology

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Chronic Obstructive Pulmonary Disease (COPD) pathophysiology is intricate and multifaceted, involving a complex interplay of physiological processes. Understanding these mechanisms is crucial for effectively managing and treating COPD. Here is an in-depth look at the critical elements in the pathophysiology of COPD:
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Asthma: Pathogenesis and Management01:20

Asthma: Pathogenesis and Management

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Asthma is a chronic pulmonary condition involving inflammation of the airways, hyper-reactivity, and reversible obstruction of the airways. This condition can significantly impact a person's quality of life, making breathing difficult and leading to distressing symptoms.
Asthma is classified as allergic and non-allergic. Allergens such as dust mites, pollen, and pet dander trigger allergic asthma, while factors like cold air, intense emotions, or exercise can induce non-allergic asthma.
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Related Experiment Video

Updated: Jun 12, 2025

A Model of Self-limited Acute Lung Injury by Unilateral Intra-bronchial Acid Instillation
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Proresolving Lipid Mediators in the Respiratory System.

Charles N Serhan1, Bruce D Levy2

  • 1Center for Experimental Therapeutics and Reperfusion Injury, Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA;

Annual Review of Physiology
|September 20, 2024
PubMed
Summary

Omega-3 fatty acids, like DHA and EPA, are crucial for resolving lung inflammation. These essential fatty acids produce specialized pro-resolving mediators that aid in the natural resolution of respiratory inflammation.

Keywords:
cysteinyl-specialized proresolving mediatorsefferocytosislung diseasepolyunsaturated fatty acidproresolving mediatorsresolvins

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Area of Science:

  • Pulmonary Medicine
  • Immunology
  • Biochemistry

Background:

  • Lung inflammation, infection, and injury pose significant health risks, often requiring pharmacological intervention.
  • Current treatments for excessive lung inflammation can lead to immunosuppression, highlighting a need for improved therapeutic strategies.
  • The body's natural inflammatory response involves distinct initiation and resolution phases, crucial for host defense.

Purpose of the Study:

  • To explore the role of polyunsaturated essential fatty acids in regulating lung inflammation.
  • To investigate the potential of omega-3 fatty acids and their derivatives in resolving respiratory inflammation.
  • To identify alternative therapeutic pathways for managing lung inflammation that avoid immunosuppression.

Main Methods:

  • Review of the physiological roles of essential fatty acids in inflammation.
  • Analysis of the biochemical pathways converting arachidonic acid and omega-3 fatty acids into inflammatory mediators.
  • Examination of the functions of prostaglandins, leukotrienes, resolvins, protectins, and maresins in the respiratory system.

Main Results:

  • Polyunsaturated essential fatty acids serve as precursors to key molecules governing inflammation initiation and resolution.
  • Arachidonic acid metabolites (prostaglandins, leukotrienes) drive the initiation phase by activating leukocytes.
  • Omega-3 fatty acid derivatives (resolvins, protectins, maresins) possess potent functions in resolving acute and chronic lung inflammation.

Conclusions:

  • Omega-3 fatty acids are vital precursors for potent mediators that actively resolve lung inflammation.
  • Targeting omega-3 derived pathways offers a promising strategy for treating respiratory inflammatory conditions.
  • These findings suggest a shift towards pro-resolution therapies for lung inflammation, potentially overcoming the limitations of current immunosuppressive treatments.