The Effect of 5-Aminosalicylic Acid on Intestinal Microbiota

Vanda Sargautiene 1 , Renāte Ligere 1 , Ineta Kalniņa 2 , Ida Jākobsone 3 , Vizma Nikolajeva 4 ,  and Aleksejs Derovs 5 , 6
  • 1 Department of Internal Medicine, University of Latvia, 1004, Rīga, Latvia
  • 2 Latvian Biomedical Research and Study Centre, , 1067, Rīga, Latvia
  • 3 Department of Organic Chemistry, University of Latvia, 1004, Rīga, Latvia
  • 4 Department of Microbiology and Biotechnology, University of Latvia,, 1004, Rīga, Latvia
  • 5 Gastroenterology, Hepatology and Nutrition Clinic, Rīga East Clinical University Hospital, 1038, Rīga, Latvia
  • 6 Department of Internal Diseases, Rīga Stradiņš University, 1007, Rīga, Latvia


The article discusses the possible relationships between intestinal microbiota and the therapeutic efficacy of 5-aminosalicylic acid (5-ASA) in inflammatory bowel diseases. Intestinal microbiota may be involved in 5-ASA enzymatic biotransformation, but the metabolism of drugs by the intestinal microbiota has been studied in less detail, and little is known about the relationships between anti-inflammatory efficacy of 5-ASA with bacterial viability, quantity and activity. It remains unclear whether 5-ASA affects the microbiota depending on the different segments of gastrointestinal tract. Drugs and diet can both improve and worsen the composition of the intestinal microbiota. However, it is not known whether drugs affect the intestinal microbiota regardless of diet. Further research is needed to answer these questions.

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