Henan Provincial People's Hospital

This study planned to test a modified acupotomy technique for people with ankylosing spondylitis, a type of arthritis that causes back pain and stiffness. The goal was to see if the procedure could reduce disease activity and improve symptoms. However, the trial was withdrawn bef…

This study looks at how four different anesthetic drugs change the immune system in 80 healthy volunteers aged 20-30. Participants are randomly assigned to receive propofol, sevoflurane, ciprofol, or no anesthesia. Blood samples are taken before, right after, and 24 and 48 hours …

This study tests three common methods for moving gum tissue away from teeth during crown impressions: a retraction cord, a special paste, and a cord with a hemostatic gel. Thirty-nine adults needing a single front tooth crown will try one method and rate their pain. The goal is t…