Isolation rates and toxigenic potential of Clostridium difficile isolates from various patient populations
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Summary
This summary is machine-generated.Healthy neonates frequently carry Clostridium difficile and its toxin without symptoms. In adults, gastrointestinal issues correlate with toxin presence and strain potential, especially in antibiotic-associated colitis.
Area Of Science
- Microbiology
- Clinical Medicine
- Gastroenterology
Background
- Clostridium difficile is an opportunistic pathogen.
- Antibiotic use disrupts gut microbiota, increasing C. difficile risk.
- Toxin production by C. difficile is linked to disease severity.
Purpose Of The Study
- To determine isolation rates of Clostridium difficile and its toxin production in vitro across different populations.
- To investigate the correlation between C. difficile colonization, toxin presence, and clinical symptoms.
Main Methods
- Stool specimens were collected from healthy neonates, children, adults without diarrhea, and patients with antibiotic-associated colitis.
- Isolation of Clostridium difficile was performed.
- Cytopathic toxin detection in vitro was conducted.
- Toxigenic potential of C. difficile isolates was assessed.
Main Results
- Clostridium difficile and its cytotoxin were frequently detected in healthy neonates (12/45).
- Neither organism nor toxin was found in healthy adults without recent antibiotic use.
- In adults receiving antibiotics without diarrhea, C. difficile was common but toxin was rare (1/56).
- Most patients with antibiotic-associated colitis had both C. difficile and its cytotoxin.
- All but two of 165 C. difficile isolates produced cytotoxin in vitro, with higher concentrations from symptomatic patients.
Conclusions
- Neonates are often asymptomatic carriers of Clostridium difficile and its cytotoxin.
- In adults, gastrointestinal symptoms correlate with toxin assays and the toxigenic potential of isolated strains.
- The study highlights the importance of considering C. difficile and its toxin in various patient groups, particularly neonates and those with antibiotic-associated symptoms.