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The article on “Probiotics modulation of mammalian metabolism” published this week in Molecular Systems Biology by Jeremy Nicholson and colleagues () in some (very) popular media (here, here, here and here).
How will these results translate to humans? What will be the best way to influence our microbiome? Drugs or yoghurt? These are fascinating questions and the understanding of how our physiology depends on the microbial flora could have profound consequences, particularly in these times when we seem to be in a “rush to gene-based solutions to all our problems” (Wilson, 2007). Will personal genomics have to ultimately develop into personal metagenomics to include our “extended” microbial genome?
The NIH has recently started its . In this context, this study also underscores the importance of developing model systems and tools to manipulate the microbiome and to analyze the incredibly dense and intricate interactions that connect host and microbial species. A field where top-down systems biology seems indeed a very pragmatic and promising approach.
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