US researchers have hidden lymphatic vessels located behind the sinuses. This discovery calls into question the functioning of different diseases.
How several immune diseases, such as Alzheimer's, multiple sclerosis and autism develops will have to be reconsidered following the discovery of a link between the brain and the immune system. American researchers from the University of Virginia published a study in the scientific journal Nature have located explaining unknown lymph vessels so far.
Hidden behind the sinus area, they were difficult to locate. "We believe that for every neurological disease that has an immune component, these vessels can play a major role," said Jonathan Kipnis, co-author of this work. With this surprising discovery, scientists now know that the brain is connected to the peripheral immune system through these vessels, like the rest of the body.
Diseases and aging
"The unexpected presence of lymphatic vessels now raises many questions," the researchers said, quoted by EurekAlert agency. Alzheimer's disease, for example, is related to the accumulation of proteins in the brain. This accumulation can be caused by a malfunction of the vessels that have just been discovered.
Among others, the vessels in question evolve over time. Their influence on the body's aging is another interesting avenue to explore.