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Related Concept Videos

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Immunological memory, a pivotal pillar of the adaptive immune system, is responsible for the body's ability to remember and respond more swiftly and effectively to previously encountered pathogens. This remarkable feature is what makes vaccines so effective in preventing diseases.
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Updated: Sep 16, 2025

Author Spotlight: Advancing Immune Monitoring in Critical Care Patients Using Whole Blood Assays
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A multidimensional immunological perspective on long COVID.

Sergio Giunta1, Angelica Giuliani2, Jacopo Sabbatinelli3

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Summary
This summary is machine-generated.

Long COVID involves persistent symptoms driven by immune dysregulation and autonomic dysfunction. Inflammaging may worsen this chronic inflammation and autoimmunity, impacting recovery.

Keywords:
AutoantibodiesAutoimmunityAutonomic dysfunctionInflammagingLong COVID

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Area of Science:

  • Immunology
  • Neuroscience
  • Gerontology

Background:

  • Long COVID presents persistent, debilitating symptoms post-SARS-CoV-2 infection.
  • Evidence links Long COVID to autoimmune mechanisms, including immune dysregulation and autoantibody production.
  • Inflammaging, chronic inflammation associated with aging, may predispose to and exacerbate Long COVID.

Purpose of the Study:

  • To propose a conceptual framework linking inflammaging, immune tolerance breakdown, and autonomic dysfunction in Long COVID.
  • To explore the interplay between these factors in sustaining Long COVID pathophysiology.
  • To discuss potential biomarkers for early identification and targeted therapies.

Main Methods:

  • Conceptual framework development.
  • Review of emerging biomarkers across immunological and autonomic axes.
  • Discussion of inflammaging-related biomarkers and biological clocks.

Main Results:

  • A proposed framework highlights the interaction of inflammaging, immune tolerance breakdown, and autonomic dysfunction.
  • Identified biomarkers include cytokines, autoantibodies, immune cell phenotypes, epigenetic modifications, and heart rate variability.
  • Inflammaging may increase susceptibility and amplify immune activation in Long COVID.

Conclusions:

  • Inflammaging, immune dysregulation, and autonomic dysfunction are key interacting factors in Long COVID.
  • Biomarkers for inflammaging and biological clocks may aid in identifying at-risk individuals.
  • Precise diagnostic and therapeutic strategies for Long COVID can be informed by these insights.