Objective:To investigate the expression of CXCL9 in oral submucous fibrosis (OSF) as well as oral lichen planus (OLP) and its role in the inflammatory and immunological reaction. Methods:The expression of CXCL9 was examined in 66 OSF specimens,17 OLP specimens and 10 normal buccal mucosa tissues by immunohistochemistry,and the protein level of CXCL9 were detected by Western blotting.Results:43 (65.2%) cases of OSF and 16 (94.1%) cases of OLP showed positive immunoreactivity for CXCL9 in the cytoplasm of inflammatory cells and endothelial cells. All normal buccal mucosa tissues stained negative for CXCL9. The expression levels of CXCL9 in OLP and OSF were significantly higher than that of normal controls,and the expression level in OLP was significantly higher than in OSF(?2= 4.20,P

Objective To investigate the arteries supplying the temporalis. Methods Ten cadavers were examined after embalming with a fluid containing 10% formaldehyde. For detailed examination of the supplying arteries of the temporalis, a mixture of latex and barium sulfate in a ratio of 1∶1 was injected into both carotid arteries of 10 fresh cadavers. The skin and soft tissue were removed from the temporal and lateral regions of the head, and the superficial temporal artery was dissected. As soon as the origin of the medial temporal artery was identified, the zygomatic arch was cut and lifted. The maxillary artery with its branches of the infratemporal region was carefully dissected. After identification of all vessels of the infratemporal region, the temporalis was removed, and then radiographic examination of the injected arteries was performed using 2.5 mA and 40 kV. The injected arteries were clearly identified on the radiographic images, and the area supplied by each artery was determined. Planimetric evaluation of these areas was performed. Results In all specimens, three arteries supplying the temporalis were identified: the anterior deep temporal artery that supplied the anterior part between 11 % and 25% of the temporalis with a mean of 17%, the posterior deep temporal artery that supplied the central part of 27% to 50% of the lateral aspect of the temporalis, with a mean of 38% and a branch of the superficial temporal artery, the medial temporal artery, which supplied the posterior part and in 25% the posterior and the upper part of the temporalis, resulting in 30% to 58% of the muscle's lateral aspect, with a mean of 45%. Conclusion According to a detailed description of the arterial supply of the temporalis, two different pedicled flaps using the anterior or central part of the temporalis can be selectively used for reconstructive surgery.

Objective To report the experience on the modified Abb? flap for correction of mild tightness of the corrected cleft lip deformity. Methods Forty-two patients with a mild or moderately tight lip deformity after primary unilateral cleft lip repair were performed a modified Abb? flap for correcting tight upper lip. The operative technique was that the pocket was creased for the vermilion tubercle by splitting the lip. The skin was incised several millimeters beyond the vermilion-skin border and was moved laterally for a distance equal to the breadth of the vermilion tubercle. The orbicularis oris muscle and the full length of the upper lip vermilion were incised. By releasing the tension, the slight concavity, expressed in profile by the slight pout which a normal upper lip had in cross section, was obtained. The Abb? flap that was taken from the central portion of the lower lip vermilion, was designed to repair the vermilion tubercle and the Cupid's bow. The flap was approximately 8 mm in width. The full length of the lower lip vermilion and the orbicularis oris muscle were incorporated. A ting portion of skin was included, which facilitated closure of the donor site, The flap, based on the labial vessels, was rotated 180?and sutured into the created defect of the upper lip. The pedicle was divided 10 days after operation. Results Forty-two patients all showed an obvious Cupid's bow, Cupid's bow peak, the median tubercle and the height and width of the upper lip. The scarring of the base of the nose was not obvious. Conclusion Use of modified Abb? flap to reconstruct the contour of the upper lip is successful in patients with cleft lip.

Objective To explore relationships between the aesthetical education and the development of students' entire quality in medical school. Methods Taking the Introduction to Medical Aesthetics as the blueprint, we used the multimedia during the whole courses while considering our student's actual needs. Students were given tests and a questionnaire. Results 114 students took the examination, 89.5 % of which achieved the "good" grade, while 10. 5 % of them got the "pass"grade; none of them failed to the test. Conclusion The aesthetical education has taken great impressions on the development of the students' aesthetical quality.

Objective:To investigate the diagnosis and therapy approaches of carotid body tumor (CBT).Method:Retrospective study of diagnosis and treatment of 10 patients with CBT was conducted.Results:Five patients were examined by B ultrasonic technique and all were not diagnosed;eight were examined by color Doppler flow imaging, six of whom were diagnosed as with CBT;six were examined by CT, three of whom were diagnosed;three was examined by digital subtraction angiography(DSA) and all were diagnosed;two were examined by magnetic resonance imaging(MRI) and one was diagnosed.There was no patient died during operation.One patient died 4 days after operation because of anoxemia in brain. Pathological examination after operation confirmed the diagnosis.Conclusion:Synthetical examinations should be taken to confirm the diagnosis of CBT. Color Doppler flow imaging and DSA are significant. Selection of operation methods should be based on the practice.

Objective To analyze the reason of necrosis for pedunculated skin flaps repaired after floor of the mouth defect repair.Methods 56 cases of pedunclated-flaps restoring the floor of the mouth from 1996 to 2001 were reviewed, and pedunclated-flap repair was performed after operation in 11 cases suffering from malignant tumors in the floor of the mouth, and 5 kinds of pedunculated flaps were compared.Results Five kinds of pedunculated flaps were used to reconstruct the floor of the mouth defects. Its successful sequence was as following: forehead flap, pectoralis major myocutaneous flap, sternocleidomastoid flaps,trapezius myocutaneous flaps, and subhyoid flap.Conclusions Causes of those flaps necrosis might relate to furnishing blood with supplied-flaps region and structure of anatomy in received-flaps region, also it is related to operater's skill.So the reason of repair failure of skin flaps with pedicle needs comprehensive analysis.

Objective To analyze the relationship between the chemotherapeutic efficacy and VEGF expression in the patients with oral squamous cell carcinoma. Methods 51 cases with oral squamous cell carcinoma who received preoperative chemotherapy of a total 80mg pingyangmycin were enrolled in this study. The relationship among the chemotherapeutic effect, VEGF expression, fever, and the duration of fever was analyzed using linear correlation, stepwise regression and student t-test. Results VEGF expression in the cancer cells of 92.1%(47/51) patients decreased after preoperative chemotherapy, and the decreased expression of VEGF was not significantly correlated with chemotherapentic efficacy. But the chemotherapeutic effect was closely related with fever degree in the early stage of chemotherapy. Conclusion There was no significant relationship between chemotherapeutic effects and VEGF expression in oral squamous cell carcinoma. Fever in early stage of chemotherapy may serve as an index for evaluating the patient prognosis.

Objective Developmental validation studies were designed according to the standards of forensic DNA community on DNATyperTM15 kit,which simultaneously amplifies 14 STR loci(D6S1043、D21S11、D7S820、CSF1PO、D2S1338、D3S1358、D13S317、D8S1179、D16S539、Penta E、D5S818、VWA、D18S51、FGA)and amelogenin,a sex-determining locus.Methods Several key factors were tested including:Ⅰ.amount of hot-start Taq polymerase;Ⅱ.annealing temperature;Ⅲ.sensitivity;Ⅳ.reaction volume;Ⅴ.cycle number;Ⅵ.primer concentration.DNATyperTM15 was also compared with two other widely used commercial STR amplification kits,namely IdentifilerTM and PowerPlex.Results No difference in performance was observed with three lots of DNATyperTM15.Performance was not affected even after 20 times of repeated freeze-and-thaw.All three kits performed comparably in the following aspects:Ⅰ.sensitivity;Ⅱ.ability to genotype mixed samples;Ⅲ.amplification of DNA from various sample sources.DNA extraction methods(Chelex-100,magnetic beads,silica beads)did not result in any observable effect on performance with any of the three kits.Conclusion All the results demonstrated that DNATyperTM15 is suitable for both forensic DNA database work and casework.

Objective To explore a faster and more precise method to establish a 3-dimensional (3 D) finite element model of maxillary in human complete unilateral cleft lip and palate. Methods The surface of the model was created using Materialists Interactive Medical Image Control System (Mimics) software to deal with Dicom standard files obtained by scanning the cranium of the patient with multi-slice helical CT. The 3D finite element model for complete unilateral cleft lip and plate in maxillary was established by Ansys software. Results A 3D finite element model of maxillary in human complete unilateral cleft lip and palate was constructed with 27 405 units and 26 876 nodes. Conclusion The combination of Mimics software, Geomagic studio software, Ansys software, and spiral CT is able to create a 3D finite element counter model, which provides a faster and more valid method to study complete unilateral cleft lip and palate.

OBJECTIVE: As a part of the whole skeleton,oral maxilloficial bone can also be affected by the risk factors of systemic osteoporosis. This paper reviewed literature on the possible correlation of systemic osteoporosis with oral alveolar bone resorption,periodontal disease,healing of implanted denture and temporomandibular joint disease that result from oral maxillofacial osteoporosis.DATA SOURCES: Literature in English between January 1999 and December 2003 were searched with the computer in Medline Database by the following key words: osteoporosis,alveolar trophy,periodontitis,implanted denture and tempororomandibular joint with; meanwhile literature was also searched in Chinese Periodical Database and Wanfang Database of the same period by the same key words in Chinese.STUDY SELECTION: Literature involving treatment group and control group were screened in the first trial. Then those non-randomized clinical trials were excluded and the others were looked up for full text. Inclusion criteria: randomized controlled clinical trial(RTC) . Exclusion criteria: repeated study.DATA EXTRACTION: A total of 27 articles of randomized or non-randomized studies on the possible association of systemic osteoporosis with oral alveolar bone atrophy, implanted denture and temporomandibular joint disease were collected,and 18 trials met the inclusion criteria.DATA SYNTHESIS: All subjects in the 18 studies were confirmed of having osteoporosis according the diagnostic standards. Changes of oral maxillofacial bone in systemic osteoporosis were explored by observing bone density,residual teeth, the height of alveolar ridge so as to make comparative and correlation analysis.CONCLUSION: In systemic osteoporosis, mandible bone may also have rarefaction changes.