YAP1 and intervertebral disk degenerative disorder: Immunohistochemistry showed that the expression of YAP1 was alleviated than that of the IDD group, showing that YAP1 can delay the senescence and degeneration of rat intervertebral discs by injecting YAP1 adenovirus into the rat tail intervertebral disc, which may be a new treatment for IDD.