Salmonella bacteria don’t want your body to starve on their account. The microbes’ motives, though, are (probably) purely poop-related.
The body sometimes sacrifices appetite to fight off infection: Less energy for the host also means less energy for the pathogen. Understanding how bacteria cope with this tactic can inform treatments.
When it reaches the gut, Salmonella enterica ...
SAN DIEGO — Over the course of months, clumps of a protein implicated in Parkinson’s disease can travel from the gut into the brains of mice, scientists have found.
The results, reported November 14 at the annual meeting of the Society for Neuroscience, suggest that in some cases, Parkinson’s may get its start in the gut. That’s an intriguing concept, says neuroscientist John Cryan of...
Gut microbes cause obesity by sending messages via the vagus nerve to pack on pounds, new research in rodents suggests.
Bacteria in the intestines produce a molecule called acetate, which works through the brain and nervous system to make rats and mice fat, researchers report in the June 9 Nature.
If the results hold up in humans, scientists would understand one mechanism by which...
The 22 men took the same pill for four weeks. When interviewed, they said they felt less daily stress and their memories were sharper. The brain benefits were subtle, but the results, reported at last year’s annual meeting of the Society for Neuroscience, got attention. That’s because the pills were not a precise chemical formula synthesized by the pharmaceutical industry.
Speaking. Breathing. Eating. The da-dum, da-dum, da-dum of your heart. The vagus nerve (aka Cranial Nerve X or, more poetically, the Wandering Nerve) plays a crucial role in all of these essential functions, linking brain and organs in what’s called the nervous system’s superhighway. While most of its important work passes without notice, the vagus has long been on medicine’s radar,...11/18/2015 - 13:27 Science & Society, Neuroscience
With outposts in nearly every organ and a direct line into the brain stem, the vagus nerve is the nervous system’s superhighway. About 80 percent of its nerve fibers — or four of its five “lanes” — drive information from the body to the brain. Its fifth lane runs in the opposite direction, shuttling signals from the brain throughout the body.
Doctors have long exploited the nerve’s...