Free Republic

Researchers have found that tapping into the nervous system could help reduce the gut inflammation that drives inflammatory bowel disease (IBD). A new study reveals how electrical stimulation of the vagus nerve—a major nerve connecting the brain and gut—may combat the stress-related inflammation that worsens IBD symptoms. The study showed that vagus nerve stimulation in stressed mice with colitis, a form of IBD, reduced inflammation, improved symptoms, and boosted survival rates. By engaging the parasympathetic nervous system, the team observed that inflammation could be eased by inhibiting SUMOylation, a cellular process that shapes immune response. Ayman Youssef, MD, analyzed data...

It sounds like science fiction, but it seems that bacteria within us - which outnumber our own cells about 100-fold - may very well be affecting both our cravings and moods to get us to eat what they want, and often are driving us toward obesity.

Chronic fatigue syndrome (CFS) is an often-debilitating condition of unknown origin. There is a general consensus among CFS researchers that the symptoms seem to reflect an ongoing immune response, perhaps due to viral infection. Thus, most CFS research has focused upon trying to uncover that putative immune system dysfunction or specific pathogenic agent. However, no single causative agent has been found. In this speculative article, I describe a new hypothesis for the etiology of CFS: infection of the vagus nerve. When immune cells of otherwise healthy individuals detect any peripheral infection, they release proinflammatory cytokines. Chemoreceptors of the sensory vagus...