[Osteogenic gene expression of human periodontal ligament stem cells during osteogenic induction].

Urpose: To isolate and identify the human periodontal ligament stem cells, evaluate osteogenetic capacity, and investigate the changes of osteogenic bone related gene expression in mineralized medium at different times.

Methods: PDLSCs were isolated by tissue culture and magnetic activated cell sorting. Immunofluorescence staining was used for identification.

[Retrospective study on the dynamic development of Chinese medical syndrome types of gastric cancer].

Objective: To observe the effects of surgery and chemotherapy on the development of Chinese medical syndrome types on patients with gastric cancer (GC), thus providing the evidence for treating GC by Chinese medical syndrome differentiation and treatment by stages.

Methods: A retrospective study was carried out in 500 GC patients according to before and after surgery, the surgical ways, before and after chemotherapy to observe the dynamic development of Chinese medical syndrome types of GC.

Results: Pi deficiency syndrome dominated in GC patients of single syndrome or two syndromes before and after surgery.