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Related Concept Videos

Pulmonary Tuberculosis II01:28

Pulmonary Tuberculosis II

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...
Cystic Fibrosis: Pathogenesis01:23

Cystic Fibrosis: Pathogenesis

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Pulmonary Tuberculosis III01:31

Pulmonary Tuberculosis III

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:
Pulmonary Tuberculosis V01:28

Pulmonary Tuberculosis V

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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Lipid Absorption01:24

Lipid Absorption

Dietary triglycerides from chyme in the duodenum are mixed with bile salts produced by the liver to emulsify fats. As a result, large droplets are broken down into smaller ones, increasing the surface area for enzymatic action. Once emulsified, pancreatic lipases hydrolyze the triglycerides into free fatty acids and monoglycerides.
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Colonisation of Pathogens01:25

Colonisation of Pathogens

Pathogen colonization of host tissues is a critical step in the development of infectious diseases. Various pathogenic microorganisms, including bacteria, fungi, viruses, and protozoa, have evolved complex strategies to attach to, invade, and persist within host environments. These mechanisms enable pathogens to establish infections, evade immune responses, and resist antimicrobial treatments.Attachment to Host CellsIn bacteria, colonization typically begins with adherence to host epithelial...

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Related Experiment Video

Updated: May 25, 2026

Analysis of the Lipid Composition of Mycobacteria by Thin Layer Chromatography
07:42

Analysis of the Lipid Composition of Mycobacteria by Thin Layer Chromatography

Published on: April 16, 2021

A waxy path: Lipid dynamics during tuberculosis.

Priya Yadav, Sheetal Gandotra

    Current Opinion in Cell Biology
    |May 23, 2026
    PubMed
    Summary
    This summary is machine-generated.

    Mycobacterium tuberculosis exploits host lipids for energy but must manage their toxicity. The bacterium uses coordinated pathways for lipid management and exports lipids to modulate immune responses during tuberculosis infection.

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    Area of Science:

    • Microbiology
    • Immunology
    • Biochemistry

    Background:

    • Infectious pathogens adapt to host metabolism, utilizing nutrients like lipids.
    • Host lipids are an energy source but pose toxic risks for pathogens.
    • Mycobacterium tuberculosis (M. tuberculosis) thrives in lipid-rich environments.

    Purpose of the Study:

    • To review recent advances in host-pathogen lipid interactions in tuberculosis.
    • To explore how M. tuberculosis manages host lipids for survival.
    • To understand the role of bacterial lipid exports in pathogenesis.

    Main Methods:

    • Literature review of recent studies on M. tuberculosis and lipid metabolism.
    • Synthesis of findings on host and bacterial lipid pathways.
    • Analysis of lipid transfer, uptake, detoxification, and export mechanisms.

    Main Results:

    • Coordinated host-bacterial pathways facilitate fatty acid transfer, uptake, buffering, and detoxification.
    • M. tuberculosis employs mechanisms to avoid lipotoxicity during intracellular survival.
    • Bacterial lipid exports influence local and bystander immune cell responses.

    Conclusions:

    • Dynamic, bidirectional lipid interactions are central to tuberculosis pathogenesis.
    • M. tuberculosis exhibits sophisticated lipid metabolism strategies for host colonization.
    • Understanding these lipid dynamics offers insights into novel therapeutic strategies.