Gut Bacteria Linked to Immune Response

Just read this article about a new finding of a bacteria linked to a specific immune response in mice. The bacteria induced higher Th17 response. The finding suggests additional bacteria to look at in the formation of autoimmune disease. Here's an excerpt:

If the effect is present in humans, it suggests a clinical use for the findings, Littman said. "So you can immediately see some practical application of this, if one can mimic the presence of these commensal bacteria to strengthen resistance to pathogenic microbes," he said.

On the other hand, the level of the microbes could also play a role in the development of autoimmune disease, he said. "You have to have the right balance," Littman said.

With hundreds of strains of bacteria, the "right balance" seems very difficult to find.