[Ultrastructural analysis of changes in the lung parenchyma in the initial stages of experimental sepsis]

Area of Science:

• Pathology
• Microbiology
• Cell Biology

Context:

• Sepsis is a life-threatening condition.
• Bacterial infections can lead to organ damage.
• Pseudomonas aeruginosa is an opportunistic pathogen.

Purpose:

• To investigate the histological and ultrastructural changes in rat lung parenchyma during sepsis.
• To identify the location and effects of P. aeruginosa in lung tissues.

Summary:

• Sepsis was induced in rats by subcutaneous implantation of P. aeruginosa.
• Microorganisms were observed in lung septal spaces and alveoli 10 hours post-implantation.
• Observed alterations included microcirculatory changes and destruction of endotheliocytes, alveolocytes, and septal cells.

Impact:

• Provides insights into the pathogenesis of P. aeruginosa-induced lung injury.
• Highlights the cellular targets and microcirculatory effects of bacterial sepsis in lung tissue.
• Contributes to understanding sepsis-related respiratory complications.