The appendage is an anatomical system, but many species, still different: from orangutan to beaver and of course humans. In the latter case, if inflammation occurs, it is a means of elimination to avoid the evolution towards peritonitis. But, today, the work of researchers shows that these few mysterious centimeters are not so useless.
This small anatomical structure of a few centimeters is located in the abdomen Not properly understood for a long time. According to the principles , Which would also be an investigative system, ineffective and inactive. It can even be proven to be dangerous to health because of the risk That may arise. We are talking about “intestinal inflammation” and in the absence of treatment, it is Can develop And drive until dying., Function
Over the years, research has been carried out to learn more about this . For example, studies have shown that an inflammatory bowel disease, which occurs in cases of inflammatory bowel disease that has been proven before the age of 20, has protective effects against a specific form of chronic inflammation of the chest. : Colon ulcer.
A mysterious activity associated with the longevity of mammals
In addition, researchers have shown that back attachment is not limited to humans. It first appeared in mammals at least 80 million years ago, and later during evolution it produced many and independent appearances in the lineage of many mammals, without obvious contact with food, social life, or the environment. It is still seen today , The And this Beaver or even . However, its function is still a mystery, and no study has reached a definitive conclusion.
The team, led by Inserm researcher Eric Ozier-Denis and his colleague Michael Lauren, looked at the question by analyzing data from the National Museum of Natural History, 258. The true value of different organisms is considered.With 39 in mammals, and 219 without attachment. Scientists in particular have a theoretical maximum life expectancy (The Theoretical lifespan of mammals, established according to their weight) and
They have shown for the first time that the existence of an appendix is related to length Most species are found. Compared to the same mammal that does not have a back attachment, the mammal that exhibits this anatomical structure has a longer lifespan.
The mammal that expresses this anatomical structure has a long lifespan
« The idea of focusing on longevity through our work on the relationship between inflammatory bowel disease / ulcerative colitis and the involvement of the immune system was suggested to us. With a very active and well-educated immune system, we can theoretically better resist the environment and live longer. So we tested this hypothesis in collaboration with two internationally known evolutionists from the National Museum of Natural History. This is the first demonstration of a connection between attachment and a trait in mammalian biographies. », Emphasizes Eric Ozier-Denise.
Back link of the immune system, bacterial sanctuary
According to researchers, a possible hypothesis that explains the link between backlinks and longevity is that the organization, by its form, supports a constitution. Selective to reduce mortality Infection by promoting rapid remodeling of bacterial species essential to the host. The presence of attachment is associated with a decrease in mortality and is therefore associated with prolongation of longevity in mammals.
“This does not mean that inflammatory bowel disease in humans changes longevity. In fact, inflammatory bowel disease at a young age can certainly benefit by increasing education. And allows it to fight more effectively in the event of a subsequent infection. Inflammation of the intestine is inflammatory bowel disease and this work does not provide any argument for altering this treatment approach. An appendectomy performed without inflammation of the bowel can only have adverse effects Inflammatory and Infectious Intestines », Refers to Eric Ozier Denise.
So this work opens up new avenuesTo answer the controversial question of the function of the appendix. They will be supplemented in the coming months by field studies with different types of mammals to confirm the link between attachment and longevity in the following.
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