Sigmund Freud Privatuniversitat

This study looks at how common H. pylori infection is in adults who have no stomach symptoms but are getting a routine screening colonoscopy. About 1000 participants will also have a stomach scope (gastroscopy) during the same visit to check for the bacteria and early tissue chan…

This study looks at how quitting smoking for six weeks affects the body's chemistry and gut bacteria in people with substance use disorders. Researchers will compare a smoking cessation program to usual care in 100 adults, measuring changes in cravings, mood, and biological marke…