The changes of palate cleft gap of complete unilateral cleft lip and palate infants before and after presurgical orthodontic and cheiloplasty / 华西口腔医学杂志

<p><b>OBJECTIVE</b>To study the changes of palate cleft gap of complete unilateral cleft lip and palate (UCLP) infants before and after presurgical orthodontic and cheiloplasty.</p><p><b>METHODS</b>The sample consisted of 18 complete UCLP infants who were treated using presurgical nasoalveolar molding (PNAM) appliance and cheiloplasty. The maxillary models were obtained at the initial visit, after PNAM treatment 1 month before cheiloplasty, and 2 months after cheiloplasty. The change of palate cleft gap were compared.</p><p><b>RESULTS</b>After PNAM treatment and cheiloplasty, the lip profile was obviously improved, cleft gap was reduced, and the height of ala nasi fornix was recovered.</p><p><b>CONCLUSION</b>PNAM treatment can improve the lip shape and nasal deformity degree of UCLP patient. The cleft gap and upper lip tension are reduced.</p>

Two new compounds from Psoralea corylifolia L / 药学学报

To study the chemical constituents of the fruits of Psoralea corylifolia L., the constituents were isolated and purified by chromatography. Two new compounds were isolated from the ethyl acetate-soluble fraction of the ethanol extract. On the basis of chemical and spectroscopic data 1D and 2D NMR, they were identified as 2-(3, 4-dihydroxyphenyl)-8, 8-dimethyl-8H-pyrano[2, 3-h]chromen-4-one (1) and 5-(2-hydroxyl-1-methyl)-ethyl-4, 5-dihydrofurano[2, 3-h](4'-hydroxyl-3', 5'-dimethoxy)-isoflavone (2), and named as coryfolia D and bavarigenin separately.

Assessment of upper jaw extraction versus upper and lower jaw extraction treatment for class II division 1 malocclusion using peer assessment rating index / 华西口腔医学杂志

<p><b>OBJECTIVE</b>To assess the outcome of orthodontic treatment with upper jaw or upper and lower jaw extraction for Class II division 1 malocclusion using the peer assessment rating (PAR) index.</p><p><b>METHODS</b>28 patients with Class II division 1 were extracted two first premolars or second premolars of upper jaw, and 24 patients were extracted four premolars of upper and lower jaw N. The PAR was applied on pre-and post-orthodontic treatment dental casts for the fifty-two cases.</p><p><b>RESULTS</b>The upper and lower jaw extraction groups had significantly higher initial PAR scores and the weighted PAR total scores (P<0.05). Although significantly different before treatment, both groups were not statistically different after treatment (P>0.05).</p><p><b>CONCLUSION</b>The upper and lower jaw extraction cases showed more severe dental displacement. Both treatment can acquire successful results.</p>

Isolation and structure identification of a new isoflavone from Psoralea corylifolias / 药学学报

<p><b>AIM</b>To study the chemical constituents of the fruits of Psoralea corylifolia L.</p><p><b>METHODS</b>The constituents were separated and purified by column chromatography with normal phase silica gel and polyamide. Their structures were identified on the basis of physical and spectral data (MS, NMR, HMBC and HMQC).</p><p><b>RESULTS</b>Six compounds were isolated and identified as psoralen (1), isopsoralen (2), bavachalcone (3), psoralidin (4), daidzin (5) and bavadin (6).</p><p><b>CONCLUSION</b>Compound 6 is a new compound. Compound 5 was isolated from this plant for the first time.</p>