Pericardium: structure and function in health and disease

Area of Science:

• Cardiovascular Biology
• Cell Biology
• Histology

Background:

• The pericardium, a sac surrounding the heart, has fibrous and serous layers.
• The serous pericardium contains mesothelial cells crucial for heart protection and function.
• Pericardial cavity holds plasma ultrafiltrate, facilitating lubrication and reducing friction.

Purpose of the Study:

• To detail the normal structure and function of the pericardium.
• To highlight the role of mesothelial cells in pericardial health and disease.
• To explain how pericardial injury and inflammation can lead to complications.

Main Methods:

• Review of normal pericardial anatomy and histology.
• Examination of mesothelial cell ultrastructure and function.
• Analysis of pericardial healing and pathological changes.

Main Results:

• Normal pericardium provides mechanical protection and lubrication.
• Mesothelial cells are vital for immune response, repair, and coagulation.
• Cuboidal mesothelial cells exhibit specialized ultrastructure for active functions.
• Impaired pericardial healing can result in adhesions, causing serious complications.

Conclusions:

• The integrity of the pericardium and its mesothelial cells is essential for cardiac health.
• Understanding pericardial structure is key to preventing complications from pericarditis.
• Dysfunctional mesothelial cells contribute to adverse outcomes in pericardial disease.