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Related Concept Videos

Pulmonary Tuberculosis II01:28

Pulmonary Tuberculosis II

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Tuberculosis, or TB, is a bacterial infectious disease caused by Mycobacterium tuberculosis. While its primary impact is on the lungs, leading to pulmonary tuberculosis, it can also affect various other organs, a condition referred to as extrapulmonary tuberculosis.
Here is a detailed explanation of its pathophysiology:
Transmission: The process begins when a person inhales droplet nuclei containing M. tuberculosis. These are typically released into the air when an individual with pulmonary or...
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Pulmonary Tuberculosis III01:31

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Tuberculosis (TB) is a contagious infection primarily affecting the lung parenchyma but which can also affect other body parts. TB can be classified based on disease development, presentation, and the affected anatomical site.
The first classification is based on the development of the disease, and it includes the following categories:
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Pulmonary Tuberculosis IV01:26

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Tuberculosis, more commonly referred to as TB, is an infectious disease stemming from Mycobacterium tuberculosis. While it primarily impacts the lungs, TB can also affect other body areas. Given its severity and global impact, timely and accurate diagnosis is crucial for controlling its spread and improving patient outcomes.
Several diagnostic approaches are used to detect TB. The conventional method is the Tuberculin Skin Test (TST), also known as the Mantoux test. However, this method has...
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Tuberculosis, often called TB, is a contagious illness primarily caused by Mycobacterium tuberculosis. It mainly affects the lung parenchyma but can also impact other body parts.
Causative Organism
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The human immune system is a complex network of cells, tissues, and organs that work together to defend the body against bacterial infections. It consists of various immune cells, each playing a specific role in the defense mechanism.
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Medical management of tuberculosis (TB) patients involves a comprehensive approach that includes diagnosis, treatment, and monitoring. The specific strategies can vary depending on the type of tuberculosis (latent or active), the patient's overall health status, and other considerations.
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A 3D Human Lung Tissue Model for Functional Studies on Mycobacterium tuberculosis Infection
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Immunopathology in human tuberculosis.

Thomas J Scriba1, Mahlatse Maseeme2,3, Carly Young1

  • 1South African Tuberculosis Vaccine Initiative, Division of Immunology, Department of Pathology and Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, South Africa.

Science Immunology
|December 13, 2024
PubMed
Summary
This summary is machine-generated.

Understanding Mycobacterium tuberculosis (M.tb) infection in humans requires studying complex immune pathways. Research highlights the critical role of immunopathology in tuberculosis (TB) pathogenesis and progression.

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Area of Science:

  • Immunology
  • Infectious Diseases
  • Pathogenesis

Background:

  • Mycobacterium tuberculosis (M.tb) is a human-evolved pathogen with intricate host interactions.
  • Immune pathways are crucial for controlling M.tb infection, forming granulomas, and disease progression to tuberculosis (TB).

Purpose of the Study:

  • To explore the complex interplay of immune cells and signaling in M.tb infection.
  • To understand the role of immunopathology in TB pathogenesis and clinical manifestations.
  • To identify research gaps in human TB immunopathogenesis.

Main Methods:

  • Review of immune cell interactions (macrophages, T cells, B cells, etc.) via cytokines, cell-cell contact, and eicosanoid signaling.
  • Analysis of clinical manifestations including pulmonary, extrapulmonary TB, and post-TB lung disease.
  • Examination of risk factors for TB progression related to immune status.

Main Results:

  • Immune cells can either contain M.tb infection or mediate pathological changes leading to transmission.
  • Clinical TB presentations vary, and progression is linked to host immune status.
  • Interventions for TB often target immune mechanisms, emphasizing immunopathology's significance.

Conclusions:

  • Maintaining a balance between protective immunity and detrimental inflammation is key to TB immunopathogenesis.
  • Further research is needed to address knowledge gaps in human TB immunopathogenesis.
  • Prioritizing research on immunopathology is essential for improving TB understanding and treatment.