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Updated: Jan 8, 2026

Microbiota Analysis Using Two-step PCR and Next-generation 16S rRNA Gene Sequencing
Published on: October 15, 2019
Paradigms for microbiome analysis in infectious and non-communicable diseases
Ingo B Autenrieth1, Laetitia Bury2, Ashley M Rooney3
1Department of Digital and Molecular Microbiology, University Hospital Heidelberg, University of Heidelberg, Heidelberg, Germany; Faculty of Medicine, University of Tuebingen, Tuebingen, Germany.
Next-generation sequencing advances human gut microbiome research, revealing its role in health and disease. Standardized deep metagenomic sequencing and index-scores are crucial for diagnosing dysbiosis and developing personalized microbiome therapies.
Area of Science:
- Microbiology
- Genomics
- Bioinformatics
Background:
- Next-generation sequencing and bioinformatics have enabled detailed analysis of the human gut microbiome.
- The gut microbiome's role in health, infectious diseases, and noncommunicable diseases is increasingly recognized.
- Current understanding challenges previous assumptions about the microbiota's direct causal impact.
Purpose of the Study:
- To highlight the clinical significance of microbiome diagnostics and therapeutics.
- To advocate for standardized, validated deep metagenomic sequencing methods.
- To enable strain-level microbiome analysis and classification of individual microbiomes.
Main Methods:
- Implementing deep metagenomic sequencing.
- Utilizing standardized and validated laboratory procedures.
- Developing index-scores for classifying microbiomes as dysbiotic or eubiotic.
Main Results:
- Deciphering the human gut microbiome at a strain level.
- Establishing criteria for classifying microbiomes as associated with disease (dysbiotic) or health (eubiotic).
Conclusions:
- Metagenomic insights are key to advancing microbiome diagnostics.
- Standardized sequencing and classification are essential for clinical applications.
- Metagenomically informed therapies, including live biotherapeutic products and fecal microbiota transfer, hold promise for personalized medicine.
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