2013年2月1日 星期五

Gut Microbiota Host Health


Gut Microbiota Host Health

The intestinal microbiota is a complicated ecosystem that influences many aspects of host physiology (i.e. diet, disease development, drug metabolism, and regulation of the immune system). It also exhibits spatial patterning and temporal dynamics.

As the microbiota is recognized as an entirely separate organ (and containing a diversity of genes that is at least 100 times greater than the other organs

The microbiota plays important roles exerting functions essential to the maintenance of human health and well being, such as stimulation of immune system, antagonistic effects against pathogens, detoxification of carcinogenic compounds, fermentation of nondigestible food ingredients and release of a variety of metabolites involved in the crosstalk between the microbiota and the host. More than 80% of the species of the dominant intestinal microbiota cannot be cultivated by the methods available.

The catalog contains 3.3 million non-redundant genes, 150-fold more than the human genome equivalent and includes a large majority of the gut metagenomic sequences determined across three continents,

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