Optimization of infiltration process of Astragali Radix based on HPLC-DAD- ELSD and response surface design / 中草药

Objective: To optimize the infiltration process of Astragalus (Astragalus membranaceus var. mongholicus) medicinal materials by Box-Behnken response surface method. Methods: Based on the HPLC-DAD-ELSD and response surface design method, the qualified rate of decoction pieces, the content of index components and bending inspection were used as comprehensive inspection indicators, and the three factors of infiltration were selected for response surface experimental design to optimize the infiltration process of Astragalus medicinal materials parameter. Results: The best infiltration process was as following: infiltration temperature was 20 ℃, with water addition of 1:0.988 for 6 h. Under this process, the qualified rate of Astragalus pieces was 95.81%, the content of calycosin-7-glucoside was 0.072%, and the content of astragaloside IV was 0.276 %. Combining fingerprint analysis and heat map analysis, the material basis of A. membranaceus var. mongholicus changed during the infiltration process. The infiltration parameters should be strictly controlled during the infiltration process to ensure uniform quality of the pieces. Conclusion: The optimized Astragalus medicinal material infiltration process is stable and feasible with good reproducibility, which can provide a reference for the mass production process development of Astragalus medicinal slices.

Surgical management of hemifacial microsomia: a report of 24 cases / 中华整形外科杂志

<p><b>OBJECTIVE</b>To investigate the therapeutic effect of combined treatment for hemifacial microsomia (HFM).</p><p><b>METHODS</b>From July 1991 to August 2006, 24 consecutive patients with HFM were retrospectively analyzed. They underwent orthognathic surgery, free flap transplantation, Medpor implant, distraction osteogenesis. The patients age, deformity type, surgical timing, treatment methods and complications were analyzed.</p><p><b>RESULTS</b>The treatment was completed in all the patients. The facial symmetry was improved dramatically after operation. The occlusion relationship was improved also with good occlusion plane. 8 free flaps were survived with no necrosis.</p><p><b>CONCLUSIONS</b>The surgical treatment should be designed based on the age and deformity type in HFM. The occlusion relationship and appearance can be both improve markedly.</p>

Distraction osteogenesis of the mandibular ramus in hemifacial microsomia / 中华整形外科杂志

<p><b>OBJECTIVE</b>To study the application of distraction osteogenesis (DO) of the mandibular ramus in hemifacial microsomia.</p><p><b>METHODS</b>From 1999 to 2006, 15 patients with hemifacial microsomia were treated with DO of the ramus, including 12 cases of children and juveniles, 3 cases of grown-ups. Maxillary Le Fort I osteotomy, unilateral sagittal split ramus osteotomy, genioplasty and free scapular flaps were selected to perform on the first or secondary stage of treatment.</p><p><b>RESULTS</b>Successful distraction was achieved in all patients with an average distraction distance of 21.25 mm. The distractor was removed after consolidation proved by clinical examination and X-ray. Facial appearance and and occlusal relationship were improved greatly. The occlusal plane was almost normal. There was no infection, malunion or permanent injury of inferior alveolar nerve.</p><p><b>CONCLUSIONS</b>DO of the ramus is very effective for the correction of severe hemifacial microsomia. It has much better therapeutic effect than traditional orthognathic procedures.</p>