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Related Concept Videos

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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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.
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The human immune system is a complex defense mechanism that protects the body from harmful pathogens and foreign substances. It comprises two crucial components: innate and adaptive immunity.
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Natural flora, body system defenses, and inflammation are natural barriers of the body against infectious agents regardless of previous exposure. Normal floras of the human body refer to the microbial population that colonizes the skin and mucous membranes.
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Updated: Feb 17, 2026

Intravenous Endotoxin Challenge in Healthy Humans: An Experimental Platform to Investigate and Modulate Systemic Inflammation
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Immunity and Inflammation: From Jekyll to Hyde.

Weili Xu1, Anis Larbi2

  • 1Singapore Immunology Network (SIgN), Agency for Science Technology and Research (A*STAR), Immunos Building, Biopolis, 138648 Singapore, Singapore; School of Biological Sciences, Nanyang Technological University, Singapore, Singapore.

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Chronic inflammation, linked to age-related diseases, arises from immune system dysregulation. Understanding immunity and inflammation can improve health-span and quality of life in the elderly.

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Area of Science:

  • Immunology and aging research
  • Pathogen defense mechanisms
  • Inflammatory processes

Background:

  • The immune system defends against pathogens, with inflammation as a key alert.
  • Dysregulated inflammation leads to chronic conditions, particularly in aging.
  • Age-related diseases are often associated with imbalanced inflammatory molecules.

Purpose of the Study:

  • To review the association between immunity, inflammation, and persistent infection.
  • To explore future research directions in tissue-specific immunity and interventions.
  • To understand how to prevent regulatory loss in inflammation for improved health-span.

Main Methods:

  • Literature review on immunity, inflammation, and aging.
  • Analysis of the dual role of inflammation (protective vs. detrimental).
  • Identification of research gaps in immune regulation and interventions.

Main Results:

  • Chronic inflammation is a significant factor in age-related diseases.
  • Loss of immune regulation contributes to detrimental inflammatory states.
  • Tissue-specific immunity and targeted interventions are potential research avenues.

Conclusions:

  • Maintaining immune system regulation is crucial for preventing chronic inflammation.
  • Further research into tissue-specific immunity can lead to better health outcomes.
  • Interventions aimed at regulating inflammation may enhance health-span and quality of life for the elderly.