Nanjing Healed Gene Biotechnology co.,ltd. Founded in October 2023, it is located in the science and technology town of Jiangning High-tech Zone. At present, the company focuses on the detection and treatment of Major Depressive Disorder (MDD). In the future, the company's business will focus on the entire field of brain science. After years of research and research, the project team has confirmed that circular RNA is of great significance in the diagnosis and treatment of MDD. At present, it has completed the development of fluorescence quantitative PCR, molecular fluorescence hybridization, nucleic acid drugs and other technical platforms for blood and saliva samples, and a compound rapid test kit that can be used for rapid and accurate quantitative diagnosis and risk assessment of MDD. It provides objective biological indicators for the diagnosis of MDD, and can be used in hospital diagnosis, out-of-hospital physical examination, public self-test and other scenarios.