In the 2019 study, the families of bacteria concerned were Coprococcus and Dialister which are known to have properties anti-inflammatory.
Gold “it is also known that inflammation of the nerve tissues plays an important role in depression. So our hypothesis is that the two are related in one way or another”, explained Jeroen Raes, professor of microbiology at the KU University of Leuven.
“The idea that substances from the metabolism of microbes can interact with our brain – and so with our behavior and feelings – is intriguing“, acknowledges Jeroen Raes. “So far, most of the studies have been on mice or a small number of people, and the results have been mixed and contradictory“, he explained.
In the 2022 study, researchers proved that the bacteria Morganella and Klebsiella play a role in the inflammatory pathophysiology of depression. Indeed, Science explains that in the case of major depression there were many more antibodies fighting against the effects of intestinal bacteria such as Morganella.