Journal
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Volume 24, Issue 4, Pages -Publisher
MDPI
DOI: 10.3390/ijms24043074
Keywords
antibiotics; dysbiosis; microbiota; gut; brain; health; probiotics; synbiotics; psychobiotics; food; beverage; nutrition
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Antibiotic therapy can harm the normal microbiota of the gastrointestinal tract, resulting in decreased diversity, changed metabolic activity, and the emergence of antibiotic-resistant strains. This can lead to antibiotic-associated diarrhoea and recurrent infections. Different classes of antibiotics can also cause gastrointestinal, immunologic, and neurocognitive conditions. Restoring the imbalanced gut microbiota to a healthy state is crucial for overall well-being. Probiotic strains, consumed through food, beverages, or supplements, can help establish a beneficial gut-brain relationship.
Antibiotic therapy through short-term or repeated long-term prescriptions can have several damaging effects on the normal microbiota of the gastrointestinal tract. Changes in microbiota could be multiple including decreased diversity of species in gut microbiota, changed metabolic activity, and the occurrence of antibiotic-resistant strains. Antibiotic-induced gut dysbiosis in turn can induce antibiotic-associated diarrhoea and recurrent infections caused by Clostridioides difficile. There is also evidence that the use of different chemical classes of antibiotics for the treatment of a variety of ailments can lead to several health issues including gastrointestinal, immunologic, and neurocognitive conditions. This review discusses gut dysbiosis, its symptoms and one important cause, which is antibiotic therapy for the induction of gut dysbiosis. Since the maintenance of good gut health is important for the well-being and functioning of physiological and cognitive activities through the normal gut-microbiota-brain relationship, the condition of dysbiosis is not desirable. Specific therapies are prescribed by medical practitioners for the cure of a variety of ailments, and, if the prescription of antibiotics becomes unavoidable, there is a possibility of the onset of gut dysbiosis as the side or after effects. Therefore, the restoration of imbalanced gut microbiota to its balanced condition becomes necessary. A healthy relationship between gut microbiota and the brain can be achieved with the introduction of probiotic strains into the gut in a practical and consumer-friendly way, such as consumption of food and beverages prepared with the use of characterised probiotic species, fermented foods as the potential biotics, or synbiotic supplements.
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