[Effect of vascular endothelial growth factor 165 gene transfection on repair of bone defect: experiment with rabbits].

Objective: To investigate the influence of vascular endothelial growth factor (VEGF) 165 gene transfection on the repair of bone defect.

Methods: 38 New Zealand rabbits underwent resection of a segment 1 cm in length in bilateral radii filled with absorbable gelatin sponge. Dilated solution of the plasmid pcDNA3.

Effect of vascular endothelial growth factor 165 gene transfection on bone defects and its mRNA expression in rabbits.

Background: Gene therapy has been a hot spot in repair of bone defects in recent years. This study aimed to construct a recombinant plasmid pcDNA3.1-VEGF(165), and to observe the effect of vascular endothelial growth factor 165 (VEGF(165)) gene therapy on bone defects in rabbits.

[The effect of pcDNA3.1-vEGF165 recombined vector on wound healing and the expression of collagen type I, III mRNA in wounded tissue].

Objective: To examine the effect of pcDNA3.1-VEGF165 vector to the angiogoiesis, expression of collagen type I and type III mRNA in soft tissue injury model.

Methods: Thirty two Sprague-Daulay rats,weighted (180 +/- 20) g, were made tissue injury in the bilateral of vertebral region.

[Correlation analysis on the malocclusion and articulation of skeletal angle III malocclusion in mixed dentition].

Objective: To investigate the effects of skeletal Class III malocclusion in mixed dentition on speech articulation and to look for which factors lead to the speech errors.

Methods: Thirty-eight children with skeletal Angle Ill malocclusion in mixed dentition were selected as a sample group and 40 children with normal occlusion in mixed dentition as a control group. Two phoneticians evaluated their articulations and wrote down error phonemes respectively.