Sigmund Freud Privatuniversitat

This study looks at how stopping smoking for six weeks affects the body's chemistry and gut bacteria in people with substance use disorders. Researchers will compare 100 participants who quit smoking with 50 healthy controls, using blood and stool samples along with psychological…

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…