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Published on: February 17, 2023
Pediatric small intestine bacterial overgrowth in low-income countries
Jeffrey R Donowitz1, William A Petri2
1Division of Pediatric Infectious Diseases, Children's Hospital of Richmond, Richmond, VA 23298, USA.
Insights
Small intestine bacterial overgrowth (SIBO) is common in children with poor sanitation, leading to growth stunting and impaired immunity. This condition may be an under-recognized cause of illness and death in developing nations.
Area of Science:
- Gastroenterology
- Pediatric Health
- Microbiology
Background:
- Small intestine bacterial overgrowth (SIBO) is characterized by excessive bacteria in the small bowel.
- SIBO is linked to gastrointestinal motility disorders.
- Emerging data indicate SIBO prevalence in children in resource-limited settings.
Purpose of the Study:
- To highlight the impact of SIBO in children in unsanitary environments.
- To underscore the association between SIBO and pediatric health issues.
- To recognize SIBO as a potential contributor to morbidity and mortality in developing countries.
Main Methods:
- Literature review of SIBO in pediatric populations.
- Analysis of SIBO's effects on micronutrient absorption and gut permeability.
- Examination of SIBO's role in mucosal immunity and vaccine efficacy.
Main Results:
- SIBO in children with poor sanitation impairs nutrient absorption and increases gut permeability, potentially causing growth stunting.
- SIBO negatively affects mucosal immunity, impacting vaccine performance and celiac disease development.
- SIBO in impoverished conditions is a significant, under-recognized pediatric health concern.
Conclusions:
- SIBO is a critical factor in pediatric health outcomes in developing regions.
- Addressing SIBO in vulnerable populations is essential for improving child health.
- Further research is needed to understand and mitigate SIBO's impact on child morbidity and mortality.
Abstract:
Small intestine bacterial overgrowth (SIBO) occurs when colonic quantities of commensal bacteria are present in the small bowel. SIBO is associated with conditions of disrupted gastrointestinal (GI) motility leading to stasis of luminal contents. Recent data show that SIBO is also found in children living in unsanitary conditions who do not have access to clean water. SIBO leads to impaired micronutrient absorption and increased GI permeability, both of which may contribute to growth stunting in children. SIBO also disrupts mucosal immunity and has been implicated in oral vaccination underperformance and the development of celiac disease. SIBO in the setting of the impoverished human habitats may be an under-recognized cause of pediatric morbidity and mortality in the developing world.
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