Publications by authors named "Yong-Xin Zheng"
Objective: To study the protective effect and possible mechanisms of Dihydromyricetin(DMY)on PC12 cells injury in- duced by sodium nitroprusside( SNP).
Methods: SNP toxicity cellular model was established using PC12 cells treated with SNP. Cell via- bility was determined by MTT assay.
Background: Calcium phosphate cement (CPC) is a biocompatible and osteoconductive bone substitute, and recombinant human bone morphogenetic protein-2 (rhBMP-2) has strong osteoinductibility, therefore we developed a composite bone substitute with CPC and rhBMP-2 and evaluate its reconstruction effect in rabbit orbital defect.
Methods: Thirty-six rabbits were randomly divided into two groups and a 5 mm × 5 mm × 2 mm bone defect in the infraorbital rim was induced by surgery in each orbit (72 orbits in all). The orbital defects were treated with pure CPC or composite of CPC and rhBMP-2.
Objective: To investigate the surgical techniques of divided nevus of the eyelids with different locations and sizes.
Methods: Retrospective observational case series. Thirty cases (30 eyes) of divided nevus of the eyelids in Zhongshan Ophthalmic Center from July 1997 to November 2006 were retrospectively reviewed.
Objective: To investigate the clinical characteristics of moderate and severe Marcus-Gunn jaw winking synkinesis and it surgical management.
Methods: Thirty-three patients with Marcus-Gunn syndrome were enrolled from 1997 to 2003 in Zhongshan Ophthalmic Center. The clinical characteristics were analyzed based on the records.
Objective: To study the effect and safety of polylacticglycolide acid copolymer (PLGA) and recombinant human bone morphogenetic protein 2 (rhBMP-2) as implanted biomaterials for reconstruction orbital floor defects in sheep and find the relationship between implant materials degradation and orbital floor defects restoration.
Methods: Nine sheep (eighteen eyes) with orbital floor defect were divided into three groups randomly. Group A was the control without treatment.