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Updated: Mar 25, 2026

Microbiota Analysis Using Two-step PCR and Next-generation 16S rRNA Gene Sequencing
Published on: October 15, 2019
Gut microbiota, obesity and diabetes
Elaine Patterson1, Paul M Ryan2, John F Cryan3
1APC Microbiome Institute, University College Cork, Co. Cork, Ireland Food Biosciences Department, Teagasc Food Research Centre, Fermoy, Co. Cork, Ireland.
The gut microbiota influences metabolic health. Imbalances can lead to inflammation and insulin resistance, while beneficial bacteria support metabolic balance, highlighting probiotics as potential therapies.
Area of Science:
- Microbiology
- Metabolic Health
- Gut Microbiome Research
Background:
- The intestinal microbiota plays a crucial role in host metabolic health.
- Dysbiosis disrupts gut barrier function, leading to metabolic endotoxemia and inflammation.
- This inflammation negatively impacts host adiposity and insulin resistance.
Purpose of the Study:
- To review the complex relationship between the gut microbiota and host metabolism.
- To explore how microbial metabolites influence host metabolic processes.
- To discuss the potential of probiotics as therapeutic agents for metabolic dysfunction.
Main Methods:
- Literature review of studies on gut microbiota and metabolic health.
- Analysis of mechanisms linking microbial composition to metabolic outcomes.
- Examination of evidence for probiotic interventions in metabolic disorders.
Main Results:
- Gut microbiota composition significantly impacts metabolic health.
- Disruptions in microbiota can trigger chronic inflammation and insulin resistance.
- Specific bacterial species and their metabolites modulate host metabolic pathways.
Conclusions:
- The gut microbiota is a key regulator of host metabolism.
- Maintaining a healthy gut symbiosis is vital for preventing metabolic dysfunction.
- Probiotics show promise as a novel therapeutic strategy for metabolic diseases.
Related Concept Videos
Functions of the Gut Microbiota
Gut-Brain Axis
The Oral Microbiota
Obesity
Microbiota of the Large Intestine
Development of Human Microbiota

