Gut brain axis, the gut side - Platforms to investigate food-gut microbiome interactions

5 important questions on Gut brain axis, the gut side - Platforms to investigate food-gut microbiome interactions

What are Next-Generation Sequencing (NGS) and Mass Spectrometry (MS), and what type of biological information does each provide in microbiome research?

NGS analyzes genetic material to identify microbes and genes, while MS analyze molecules like proteins and metabolites produced by these microbes

What are the four main omics technologies used to study the gut microbiome, and what do they measure?

The 4 main omics technologies used to study the gut microbiome are
(NGS)Metagenomics; measures what microbes and microbial genes are present as well as relative abundance ((DNA)
(NGS)Transcriptomics; measures o.a. The mRNA present
(MS)Proteomics; measure proteins present
(MS)Metabolomics ; measures metabolites present

How do GC-MS and LC-MS differ in methodology, and what type of compounds/metabolites can each detect?

GC-MS stands for gas chromatography mass spectrometry and LC-MS stands for liquid chromatography mass spectrometry. LC-MS detects higher molecular weight non-volatile, whilst GC-MS detects lower molecular weight, volatile
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What is volatilomics and how can mVOCs be used as a biomarker approach to study the microbiome?

Volatilomics is study of all volatile organic compounds. Microbial volatile organic compounds (mVOCs) indicate gut microbial activity and are potential health biomarker

Which metabolites are measured using GC-MS and LC-MS?

GC-MS measures the metabolites SCFAs, BCFAs
LC-MS measure the metabolites AAs, BCAAs, TRP metabolites

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