04.10.2024.
Researchers suggest that frequent antibiotic use may elevate the risk of developing inflammatory bowel diseases (IBD) like Crohn’s disease and ulcerative colitis.
- They highlight that the risk is greatest within one to two years after taking antibiotics aimed at gut infections.
- The likelihood of developing IBD increases with each course of antibiotics but decreases once antibiotic use is discontinued.
- While antibiotics are crucial in certain cases, experts advise considering the potential risk of IBD when prescribing them.
This research, published in the journal Gut, shows that people over the age of 40 who frequently use antibiotics may be at a heightened risk for IBD. The study analyzed medical data from Danish individuals aged 10 and older who had no IBD diagnosis at the start of the research. The dataset included over 6 million people, of which more than 5.5 million had been prescribed antibiotics at least once between 2000 and 2018. The study found 36,017 new cases of ulcerative colitis and 16,881 cases of Crohn’s disease.
Key findings on IBD and antibiotics
The research indicated that individuals who had taken at least one course of antibiotics had a higher likelihood of developing IBD compared to those who hadn’t used antibiotics, regardless of age. However, older individuals faced a greater risk. The findings showed that:
• People aged 10 to 40 were 28% more likely to develop IBD.
• Individuals between 40 and 60 had a 46% higher risk.
• Those over 60 had a 47% increased chance of an IBD diagnosis.
For Crohn’s disease specifically:
• People aged 10 to 40 had a 40% higher risk.
• Those between 40 and 50 faced the highest risk, at 62% more likely to develop the disease.
• Individuals over 50 had a 51% increased risk.
Increased IBD risk from frequent antibiotic use
The study also revealed that the risk of IBD increased cumulatively with repeated antibiotic use. With each additional round of antibiotics, the risk increased by 11%, 15%, and 14%, respectively. Individuals who had taken five or more courses of antibiotics faced an even greater risk:
• For those aged 10 to 40, the risk was 59% higher.
• People between 40 and 60 saw their risk double.
• For those over 60, the risk was 95% higher.
The highest risk of developing IBD was observed within one to two years following antibiotic use, with the risk diminishing each year without further antibiotic exposure. Specifically:
• For those aged 10 to 40, the risk was 40% higher during the first two years, but dropped to 13% after four to five years without additional antibiotic use.
• For individuals aged 40 to 60, the risk was 66% higher for the first two years, decreasing to 21% after four to five years without further antibiotic use.
• For those over 60, the risk initially rose by 63%, dropping to 22% after four to five years without additional antibiotic use.
What is Inflammatory Bowel Disease?
Inflammatory bowel disease (IBD) encompasses two primary conditions—Crohn’s disease and ulcerative colitis—both of which involve chronic inflammation of the gastrointestinal tract, leading to potential damage, as outlined by the Centers for Disease Control and Prevention. Common symptoms include:
• Diarrhea
• Abdominal pain
• Rectal bleeding or blood in the stool
• Weight loss
• Fatigue
While the exact cause of IBD remains unknown, potential factors include autoimmune reactions (where the immune system mistakenly attacks the body in response to external triggers), or a family history of IBD or other autoimmune disorders. This recent study suggests that antibiotic exposure may also be a contributing factor to IBD, and age might play a role in its development.
SOURCE:
