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Related Concept Videos

Inflammation01:38

Inflammation

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Overview
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Inflammatory Response I: Vascular and Cellular01:30

Inflammatory Response I: Vascular and Cellular

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The inflammatory response is the body's defense against infection, injury, or irritation from bacteria, trauma, toxins, or heat. Inflammation helps locate and destroy pathogens and remove damaged tissue elements to heal the body. During this initial phase, fluid, blood products, and nutrients migrate to the injured area, resulting in redness, heat, swelling, ache, and loss of function. Moreover, signs of systemic inflammation include fever, increased WBC count, malaise, anorexia, nausea,...
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Inflammatory Response01:28

Inflammatory Response

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An inflammatory response is a localized, nonspecific immune reaction that occurs when a tissue is injured. It is characterized by redness, swelling, heat, and pain, which are commonly called the cardinal signs and symptoms of inflammation. Inflammation can sometimes result in a loss of function.
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
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Acute Inflammation I: Inflammatory Response01:26

Acute Inflammation I: Inflammatory Response

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Acute inflammation is a rapid, short-lived physiological response to tissue injury or infection, designed to eliminate harmful agents and initiate repair. This tightly regulated process typically lasts from minutes to several days and is triggered by factors such as microbial invasion, physical trauma, or chemical injury.Recognition and Mediator ReleaseThe inflammatory response begins when resident immune cells—such as mast cells, macrophages, and dendritic cells—detect...
118
Acute Inflammation II: Local and Systemic Effects01:25

Acute Inflammation II: Local and Systemic Effects

82
Acute inflammation produces a coordinated set of local and systemic changes that limit injury, eliminate pathogens, and initiate repair. These responses arise within minutes of infection, trauma, or chemical insult and are driven by vascular alterations and leukocyte-derived mediators. When the stimulus resolves, the reaction typically abates within days.Local EffectsAt the site of injury, arteriolar vasodilation increases blood flow, resulting in redness and warmth. Simultaneously, increased...
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Viral Hepatitis I: Introduction01:28

Viral Hepatitis I: Introduction

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Viral hepatitis is an inflammatory condition of the liver caused by infection with hepatotropic viruses, most commonly hepatitis A, B, C, D, and E. Despite variations in structure and transmission, all viruses mentioned infect hepatocytes and provoke immune responses that can hinder liver function. Additionally, some non-hepatotropic viruses can also lead to hepatic inflammation.Hepatitis A VirusHepatitis A virus (HAV) is transmitted through the fecal–oral route, typically by ingestion...
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Correction: Bulatov et al. Camelpox Virus in Western Kazakhstan: Assessment of the Role of Local Fauna as Reservoirs of Infection. <i>Viruses</i> 2024, <i>16</i>, 1626.

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Dissecting Innate Immune Signaling in Viral Evasion of Cytokine Production
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Special Issue "Viral-Induced Inflammation".

Simone de Araújo1, Luciana P Tavares2, Vivian Vasconcelos Costa1

  • 1Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte 31270-901, Brazil.

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Inflammation is a crucial host defense mechanism that combats viral infections and aids tissue healing. Understanding its role is key to developing new antiviral and regenerative therapies.

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Area of Science:

  • Immunology
  • Virology
  • Cell Biology

Background:

  • Inflammation is a fundamental biological process involving immune cells, molecular mediators, and blood vessels.
  • It serves critical roles in pathogen clearance, removal of damaged cells, and initiating tissue repair.
  • Dysregulated inflammation, however, can contribute to chronic diseases and hinder recovery.

Discussion:

  • The intricate mechanisms of inflammatory responses during viral infections are complex and multifaceted.
  • Balancing the pro-inflammatory and anti-inflammatory signals is vital for effective viral control and minimizing host tissue damage.
  • Investigating the specific molecular pathways involved offers insights into therapeutic targets.

Key Insights:

  • Inflammation is essential for limiting viral spread and initiating the healing cascade.
  • Aberrant inflammatory processes can exacerbate viral pathogenesis and impede recovery.
  • Targeting specific inflammatory mediators may offer novel therapeutic strategies for viral diseases.

Outlook:

  • Further research into the precise molecular regulators of inflammation in viral infections is warranted.
  • Exploring the therapeutic potential of modulating inflammatory pathways could lead to improved treatments for viral illnesses.
  • Understanding the dual role of inflammation will be crucial for advancing regenerative medicine and infectious disease control.