[Fungi in the intestine--normal flora or pathogens?]

Area of Science:

• Microbiology
• Immunology
• Gastroenterology

Background:

• Candida species, including Candida albicans, are prevalent in the human orointestinal tract's microbial ecosystem.
• Low quantities of Candida are typically found in healthy individuals across various body sites.

Purpose of the Study:

• To investigate the implications of Candida overgrowth in the human orointestinal tract.
• To understand the risk factors associated with severe Candida infections.

Main Methods:

• Review of existing literature on Candida colonization and infection.
• Analysis of risk factors contributing to Candida overgrowth, focusing on immunocompromised hosts.

Main Results:

• Increased Candida growth is observed in patients with risk factors, especially immunocompromised individuals.
• Colonization at multiple sites elevates the risk of severe Candida infections.
• Candida exhibits low metabolic activity in the gut under anaerobic conditions and nutrient limitation.

Conclusions:

• Candida overgrowth, particularly in immunocompromised hosts, poses a significant risk for severe infections.
• Understanding colonization patterns and host factors is crucial for managing Candida-related diseases.