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Updated: Jun 25, 2026

Microbiota Analysis Using Two-step PCR and Next-generation 16S rRNA Gene Sequencing
Published on: October 15, 2019
Intestinal microbiota during infancy and its implications for obesity
Christoph Reinhardt1, Christopher S Reigstad, Fredrik Bäckhed
1Sahlgrenska Center for Cardiovascular and Metabolic Research/Wallenberg Laboratory, Department of Molecular and Clinical Medicine, University of Gothenburg, Gothenburg, Sweden.
The infant gut microbiota, influenced by early life factors, may play a crucial role in obesity development. Understanding these early microbial colonizations is key to preventing future obesity and related health issues.
Area of Science:
- Microbiology
- Public Health
- Pediatrics
Background:
- Obesity is a global epidemic linked to type 2 diabetes, hypertension, and cardiovascular diseases.
- The gut microbiota is recognized as an environmental factor influencing obesity through energy harvest and metabolism.
- The establishment of obesogenic microbiotas and their origins in infancy remain largely uninvestigated.
Purpose of the Study:
- To explore the role of the gut microbiota in obesity.
- To investigate how early-life environmental factors shape the infant gut microbiota.
- To determine if early microbial colonization influences later-life obesity.
Main Methods:
- Review of current literature on gut microbiota and obesity.
- Analysis of factors influencing infant gut microbiota development.
- Discussion of the link between early microbial establishment and obesity pathogenesis.
Main Results:
- The gut microbiota influences energy harvest and peripheral metabolism, impacting obesity.
- Infant gut microbiota development is shaped by internal and external factors like birth mode, diet, and antibiotic use.
- Early-life microbial colonization patterns may predispose individuals to obesity later in life.
Conclusions:
- The gut microbiota is a critical factor in obesity regulation.
- Environmental influences during infancy significantly impact gut microbiota composition.
- Early-life microbial programming is a potential determinant of adult obesity.
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