The first "gut" in the headline refers to "intestines"?
The second "gut" in the paragraph refers to "organs"?
Context:
Of Bugs and Brains:
Gut Bacteria Affect Multiple Sclerosis
ScienceDaily (July 20, 2010) — Biologists at the California Institute of Technology (Caltech) have demonstrated a connection between multiple sclerosis (MS) -- an autoimmune disorder that affects the brain and spinal cord -- and gut bacteria.
In the absence of bacteria in the intestines, pro-inflammatory Th17 cells do not develop in either the
gut or the central nervous system; and animals do not develop disease (top panel). When animals are colonized with symbiotic segmented filamentous bacteria, Th17 cell differentiation is induced in the gut. Th17 cells promote experimental autoimmune encephalomyelitis, an animal model for multiple sclerosis. In this way, non-pathogenic bacteria of the microbiota promote disease by shaping the immune response in both the gut and the brain (top panel). (Credit: Lee, Mazmanian/Caltech; modified from Savidge TC et al. Laboratory Investigation 2007)
http://www.sciencedaily.com/releases/2010/07/100719162643.htm
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