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Related Concept Videos

Mechanical Ventilation III: Noninvasive Ventilation01:23

Mechanical Ventilation III: Noninvasive Ventilation

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Noninvasive positive-pressure ventilation (NIPPV), continuous positive airway pressure (CPAP), and bilevel positive airway pressure (BiPAP) are essential methods in respiratory care. These ventilation techniques offer unique benefits for patients with various respiratory conditions, providing adequate support without requiring intubation. Let's explore how each method is crucial in improving patient outcomes and enhancing respiratory therapy.
Noninvasive Positive-Pressure Ventilation...
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Mechanical Ventilation II: Invasive Ventilation01:23

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Ventilators are essential medical equipment used to aid patients with respiratory difficulties. Their primary function is to assist or replace spontaneous breathing by providing mechanical ventilation. There are two general classes of mechanical ventilators: negative-pressure and positive-pressure ventilators.
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Ventilatory Modes01:14

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Mechanical ventilators are life-saving devices that support or replace spontaneous breathing. They deliver breaths to patients through varying methods known as ventilator modes. Understanding these modes is critical for healthcare providers managing patients with respiratory failure.
There are three ventilatory modes: full support, partial support, and spontaneous. These are described below.
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IL-37 Protects Against Ventilator-Induced Lung Injury by Inhibiting NLRP3 Activation.

Xingmeng Xu1,2, Weili Liu3, Yan Xu4

  • 1Department of Gastroenterology, Affiliated Hospital of Yangzhou University, Pancreatic Center, Yangzhou University, Yangzhou, Jiangsu, China.

Cell Biochemistry and Function
|May 6, 2025
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Summary

Interleukin-37 (IL-37) protects against ventilator-induced lung injury (VILI) by reducing inflammation and inflammasome activation. This finding suggests IL-37 as a potential therapeutic target for preventing and treating VILI.

Keywords:
NLRP3alveolar epithelial cellcaspase‐1interleukin‐37ventilator‐induced lung injury

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Area of Science:

  • Immunology
  • Pulmonology
  • Molecular Biology

Background:

  • Mechanical ventilation is crucial for acute respiratory distress syndrome (ARDS) but can cause ventilator-induced lung injury (VILI).
  • Understanding protective mechanisms against VILI is critical for improving patient outcomes.

Purpose of the Study:

  • To investigate the protective role of interleukin-37 (IL-37) in mitigating ventilator-induced lung injury (VILI).
  • To explore the underlying mechanisms involving inflammation and inflammasome activation.

Main Methods:

  • Utilized human IL-37 transgenic (IL37tg) mice and recombinant human IL-37 (rIL37) administration in wild-type (WT) mice subjected to mechanical ventilation.
  • Assessed lung histopathology, inflammatory cytokine levels (IL-1β, IL-6, TNF-α), and inflammasome activation (NLRP3, Caspase-1).

Main Results:

  • IL37tg mice and rIL37 treatment showed significantly reduced lung injury, improved histology, and decreased inflammatory cell infiltration.
  • IL-37 suppressed NLRP3 inflammasome activation, evidenced by reduced NLRP3 and Cleaved-Caspase-1 levels.
  • Immunofluorescence confirmed IL-37 colocalization with the alveolar cell marker surfactant protein D (SP-D).

Conclusions:

  • Interleukin-37 (IL-37) demonstrates a significant protective effect against ventilator-induced lung injury (VILI).
  • IL-37 mitigates VILI by inhibiting lung tissue inflammation through suppression of the NLRP3 inflammasome.
  • IL-37 represents a promising therapeutic target for the prevention and treatment of VILI.