Researchers from Sweden found that the reception of antibiotics increases the risk of developing colorectal cancer in the next five or ten years. The new work of scientists is published in The Journal of the National Cancer Institute.
Researchers from the University of Umea studied data on the state of health of 40 thousand Swedes with colon cancer and rectum for the period from 2010 to 2016. The control group includes more than 200 thousand healthy people. The researchers also analyzed data on human antibiotics consumption from 2005 to 2016.
It was found that both men and women who took antibiotics for more than six months, the danger of tumor development in the rising intestine – the first part of the colon, which food reaches the passage of the small intestine – was above 17 percent. At the same time, the risk of developing cancer of the rectum was not raised, and women even decreased slightly.
Increasing the risk of development of colon cancer was noticeable after five to ten years after taking antibiotics, he was present even at one course. For comparison, the researchers estimated the effect of the hypiperet of the methenamine – a bactericidal drug against urinary infection that does not affect the antibiotics on the human microbiology – and did not reveal connections with the risk of cancer development.