MICROBIAL COLONIZATION

This study tests whether transferring gut microbes from a mother to her baby after a cesarean section can restore the infant's gut microbiome to resemble that of a vaginally born baby. Researchers will give some infants a fecal transplant (containing bacteria or viruses) and comp…

This study tests whether giving a newborn a nasal microbiome transplant from their parent can increase the diversity of bacteria in the baby's nose. The goal is to see if this can help prevent infections like those caused by Staphylococcus aureus. The study involves 175 premature…

This study tests whether adding a pre-surgery scrub with isopropyl alcohol and chlorhexidine soap to the standard cleaning routine can lower the number of germs on the skin and reduce infections after elective foot and ankle surgery. About 100 adults having planned foot or ankle …

This study looks at whether removing certain food additives (like carrageenan and polysorbates) from the diet can improve symptoms and gut health in people with moderately active ulcerative colitis. About 70 participants will be randomly assigned to either a normal healthy diet o…

This study compares stevia-sweetened drinks, sugary drinks, and flavored water in children ages 8-12 who regularly drink sugary beverages. Over 8 to 14 weeks, researchers will measure changes in weight, body fat, insulin resistance, blood fats, and blood pressure. The goal is to …

This study tests whether a daily oral synbiotic (a mix of probiotics and prebiotics) can help women with a history of preterm birth carry their baby longer. About 400 pregnant women will take either the supplement or a placebo from early pregnancy. The goal is to see if the suppl…

This study looks at how the types of bacteria in the mouth change in people with severe gum disease as they go from having some teeth left to having no teeth, and then after getting dental implants. Researchers will collect microbial samples and analyze DNA to see if different im…

This study looks at how the drug bulevirtide changes gut bacteria and bile acids in people with hepatitis delta (a serious liver infection). Researchers will follow 20 patients for 48 weeks, collecting stool and blood samples to see how these changes relate to liver health. The g…

This study looks at whether donor breast milk can help restore healthy gut bacteria in full-term babies born by C-section who need extra feeding. About 90 mothers and their infants will take part, with some babies getting donor milk and others getting formula. The goal is to see …

This study aims to understand the natural bacteria living on the surface of the eye in both healthy people and those with certain eye conditions. Researchers will collect eye swabs from 500 adults in middle Tennessee to build a database of what a normal eye microbiome looks like.…

This study looks at how two over-the-counter mouthwashes (Listerine and Lumineux Oral Essentials) affect bacteria and three common viruses in the mouth and gut. Two hundred healthy adults aged 18-25 will rinse twice daily with one of the mouthwashes or water for about six months.…

This early study tests whether transferring nasal bacteria from a parent to a child can restore the child's nasal microbiome after they have been treated with antibiotics for staph bacteria. The study involves 175 children who have had staph in their nose and recently finished an…