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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 I01:29

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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
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
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Pulmonary Tuberculosis IV01:26

Pulmonary Tuberculosis IV

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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.
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Pulmonary Tuberculosis V01:28

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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.
Latent tuberculosis infection occurs when TB bacteria are present in a person's body, but are not causing illness or symptoms. It is not contagious, and preventive treatment is crucial to avoid the...
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T Cell Types and Functions01:24

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When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
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Tuberculosis and psoriasis: Is there a link between them?

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Tuberculosis (TB) screening is crucial for psoriasis patients starting biologic therapy. Research explores a potential link between psoriasis and TB, investigating rifampicin

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Area of Science:

  • Immunology
  • Dermatology
  • Infectious Diseases

Background:

  • Tuberculosis (TB) is a significant infectious disease caused by Mycobacterium tuberculosis.
  • Latent TB involves an immune response without active symptoms.
  • Biologic therapies can reactivate latent TB, necessitating screening in susceptible populations like psoriasis patients.

Purpose of the Study:

  • To investigate the potential link between psoriasis and tuberculosis (TB).
  • To evaluate the efficacy of rifampicin in severe psoriasis patients with coexisting active TB.
  • To examine psoriasis remission in patients treated with rifampicin, irrespective of active TB status.

Main Methods:

  • Review of clinical data on severe psoriasis patients treated with rifampicin for active TB.
  • Analysis of psoriasis remission rates in patients receiving rifampicin therapy.
  • Exploration of the relationship between TB and psoriasis based on treatment outcomes.

Main Results:

  • Rifampicin demonstrated efficacy in treating severe psoriasis patients with active TB.
  • Psoriasis remission was observed in some patients after rifampicin therapy, even without active TB.
  • Findings suggest a possible connection between psoriasis and TB.

Conclusions:

  • Psoriasis patients initiating biologic therapy require latent TB screening.
  • The observed efficacy of rifampicin in psoriasis patients warrants further investigation into the TB-psoriasis relationship.
  • Further research is needed to elucidate the potential link between these two conditions.