BACKGROUND: Microwave had been widely used in medical field, which can lead to local coagulation necrosis and repair the necrosis with fibrous tissue. However, whether microwave coagulation can be used in stomatology is poorly understood.OBJECTIVE: To observe the functional and volumetric changes of skeletal muscles following microwave coagulation, and to explore the possibility of microwave coagulation for volumetric reduction of skeletal muscle.METHODS: Both sides of tibialis anterior muscle of 20 New Zealand rabbits were exposed; one side was coagulated by 2 450 MHz microwave therapeutic instrument at 70 W for 20 seconds. No treatment was performed at the other side. Rabbits were sacrificed at hours 24, 48, weeks 1 and 8 after microwave coagulation. The volumetric changes of the ablated tibialis anterior muscle were measured, and electricitic physiology observations were conducted on the ablated muscle at 8 weeks after microwave coagulation before being sacrificed.RESULTS AND CONCLUSION: The volume of ablated muscle increased at hours 24 and 48, which was (5.82±0.93) and (6.04±0.47) mL, especially greater at hour 48 after microwave coagulation. After 1 week, the muscle volume began to decrease to (4.90±0.80) mL, reduced to (4.27±0.67) mL at week 8, which was 23.6% volumetric loss. However, the electrophysiologic observation showed that the latent periods were (1.765+0.393) and (1.760±0.394) ms, and the wave width was (6.273±0.808)and (6.259±0.773) ms of the control group and experimental group, respectively, without apparent differences (P ＞ 0.05). The volume of the skeleton muscle increased at hour 48 after microwave coagulation, and then decreased, but the muscle function of the skeleton muscle can be preserved.

Objective:To observe the morphological changes in skeletal muscles after therapeutic. Methods:Tibialis anterior muscles of 25 New Zealand rabbits were exposed and coagulated with 70 W for 20 s. The rabbits were sacrificed at 1 hour?24 hours?48 hours?1 week and 2 months after MCT. The specimens of coagulated areas were prepared for histological observation. Results:Obvious rims could be found bet ween coagulated and normal tissues .The ablated site showed tissue fixation in the inner zone and coagulative necrosis in found the outer zone.these were four zones can be seen under high powered magnification:the application zone,the central zone,the transition zone and the reference zone. Demarcation zone of necrosis appeared 24h after MCT. Tibrosis encapsulation occurred after 7 days.Replacement with fine cicatrix was demonstrated after 2 months. Conclusion:Tissue destroyed by coagulation can be replaced with a fine cicatrix gradually.

Objective There are quite a few chemotherapeutic adjuvants for the treatment of advanced oral squamous cell carcinoma, but all have their adverse effects. This study was to evaluate the efficacy and adverse effects of the induction chemotherapy of S?1 plus docetaxel and cisplatin in the treatment of advanced oral squamous cell carcinoma. Methods Totally, 84 patients with advanced oral squamous cell carcinoma were randomly divided into an observation and a control group of equal number, the former trea?ted with S?1 plus docetaxel and cisplatin and the latter with 5?fluorouracil, docetaxel and cisplatinand, both for two cycles ( 1 cycle =21 d) . Then the effects and adverse events were evaluated and compared between the two groups of patients. Results No statistically significant differences were observed in the response rate between the observation and control groups of patients (76.19% vs 73.81%, P>0.05). The incidence rates of adverse events, such as nausea and vomiting (66.67% vs 88.10%, P<0.05) and phlebitis (0 vs 19.05%, P<0.05) , were remarkably lower in the former than in the latter group. Conclusion S?1 plus docetaxel and cisplatin is a reli?able induction chemotherapy with few adverse effects in the treatment of advanced oral squamous cell carcinoma.

Objective To study the microstructural and ultrastructural changes of the epididymis of experimental varicocele in adolescent rats and it's role in infertility resulting from varicocele. Methods A varicocele model was performed in adolescent Sprague Dawley rats by partially ligating the left renal vein,the different segments of the epididymides of the rats were prepared for light and electron microscopy,the microstructure and ultrastructure of the epididymis were studied. Results There were lesions of different degree and segment specific changes in the epididymis with varicocele.Light microscopically,the main changes were interstitial vascular hyperemia,lymphocytes infiltration,sperm granuloma developed in the interstitial;The structure of the columnar epithelia was anomalies,epithelial cells degeneration,even the vacuoles appeared in the epithelial cells.The number of halo and clear cells increased.Inside the cavity of the duct,there were shedding cells,macrophage,deformed sperms and residual bodies.Electron microscopically,numerous large lysosomes,the residual bodies,the defected main cellular organelles(e.g. the endoplasmic reticulum,the mitochondrion and the Golgi complex etc.)and even large clear vacuoles were presented in the cytoplasm of principal cells.Clear cells were filled with lysosomes that made them frequently bulging into the lumen.The microvilli of the columnar epithelia were sparse and showed local defects.The thickness of the basal membrane increased.Conclusion\ The experimental varicocele in adolescent rats lead to microstructure and ultrastructure lesions in the epididymis,which may be another important reason of infertility resulting from varicocele.\;[

Objective:To establish a random amplified polymorphism DNA(RAPD) method for classification of origin fungi of the Chinese traditional medicine Red Kojic. Methods:The genome DNA of 7 ordinary species Monascus including M. purpureus and a strain of Aspergillus terreus were extracted by CTAB. The content of DNA was assayed doubly by fluorescence intensity of ethidium bromide (EB) and spectrometer. Amplification products were detected by agarose gel electrophoresis and clustering analysis by PHYLIP 3.5c. Results:A characteristic pattern was produced depend on one of the 10 primers screened from 60 random primers, and the genome was amplified. The diversities of the fingerprint patterns of Monascus was obvious, by which Monascus can be distinguished easily. The results were consistent with that of morphologic study. Conclusion:RAPD is a new assay technique. It can be used to classify and identify of Monascus fungi. [

Objective To examine expression levels of autophagy gene pULK and PI3KC3 and to explore their correla?tion with non-small cell lung cancer (NSCLC). Methods A total of 77 samples of surgical resection from NSCLC speci? mens (including 31 cases of squamous cell carcinoma, 31 cases of adenocarcinoma and 15 cases of large cell undifferentiated carcinoma) and 21 samples of same normal lung tissue were randomly selected. Expressions of pULK and PI3KC3 in lung tissues were assessed by immunohistochemistry and Western blot. All dates were analyzed using SPSS13.0 statistical pack?age. Results Immunohistochemistry indicated that pULK and PI3KC3 localized into the cytoplasm. The expression levels of pULK and PI3KC3 are significantly lower in patient with NSCLC than those in peri-tumor tissue (35.1%vs 81.0%, 40.3%vs 76.2%respectively, P<0.01) . Immunohistochemistry and Western bolt analysis confirmed that pULK and PI3KC3 ex?pressions were significantly down-regulated (P<0.01) in patients with low grade cellular differentiation, metastasis of lymph node, or stageⅢandⅣ. And expression levels of pULK and PI3KC3 in NSCLC did not differ significantly with ages, gen?der, tumor size and pathological type. Correlation analysis showed that the expression of PI3KC3 was positively correlated with pULK. Conclusion pULK and PI3KC3 expressions were lower in NSCLC than those in normal lung tissue group. The expression levels of pULK and PI3KC3 in NSCLC were correlated with patient's clinical stage, differentiation grade, lymph node metastasis but were unrelated with age, gender, histological type and size.

Objective：To establish a capillary gas chromatography(CGC) method for identifying the origin fungi of traditional Chinese medicine Hongqu. Methods：The volatile components of 7 species of Monascus including M. purpureus Went, M.aurantiacus Lee, M. serorubesceus　Sato, M. albidus Sato, M. barkeri Dangerd, M. ruber van　Tieghem, and　M.fuliginosus　Sato were analyzed by capillary gas chromatography method. Inlet temperature and detector temperature were 280℃，temperature program were 130℃,5 min→10℃/min→200℃, 10 min FID was used for detection. Results：The variety and contents of the volatility components in Monascus had obvious differences which can be distinguished easily by the main fingerprint peaks within 20 min. Conclusion：This method is useful to identify of Monascus fungi.

Objective:To test curriculum management effect of graduate students'clinical practice of counseling psychology.Methods:Totally 26 students [average age (24.5 ± 1.0) years] who completed 30-day interns summer were investigated with the self-made questionnaire evaluating the quality of clinical practice.Results:All students obtained promotion in practice activities,the attendance ranged from 50.0％ to 96.2％.The overall satisfaction was (3.8 ± 0.8) and the average degree of supervisors'satisfaction was (4.0 ± 0.8).There were 92.3 ％ of the students had participated more than 224 hours' practice and completed all tasks.After the interns,the students had significantly improved in all 8 aspects of professional abilities.Conclusion:In graduate education of counseling psychology,curriculum management of clinical practice may be an effective approach to improve students' clinical skills.

Objective To identify the species of sarcosaphagous flies by amplifying cytochrome oxidase subunitI (CO I) gene fragment,combined with morphological characteristics.Methods The DNA of sarcosaphagous flies was extacted by modified Tris balanced phenol-Tris saturated phenol protocol,the amplificationand sequencing of CO Ⅰ fragment were conducted,and the results were then compared with the database for analysis.Results The modified DNA extration method by Tris balanced phenol-Tris saturated phenol could obtain effective DNA of sarcosaphagous flies,and be applied for CO Ⅰ fragment amplification,and thus for identification of the species of sarcosaphagous flies.Conclusion The DNA extracted from sarcosaphagous flies by modified Tris balanced phenol-Tris saturated phenol protocol could be used astemplate for the amplification of CO Ⅰ fragment,and the system could identify the species of sareosaphagous flies after sequencing and alignment with the sequences of database.Compared with traditional identification methods of using morphological characteristics,the current system is more accurate and could be more widely applied.

ObjectiveTo study the CT values of certain phantoms scanned by various CT scanners with dissimilar parameters.Methods The CT values of tissue equivalent inserts was measured in the TM164 and CIRS-062 phantom scanned by TOSHIBA AQUILIONTM,SIEMENS SOMATOMTMSENSATIONTM 64 and SIEMENS SOMATOMTM SENSATIONTM OPEN with different voltages,currents and slice thicknesses and then the corresponding CT-to-density curves was compared. Results There are no significant differences of CT values with various currents and slice thicknesses and also for low atom number materials scanned by different scanners with various tube voltages.The CT values of high atom number materials have obvious differences scanned with tube voltage,the maximum is about 400 HU.There are also significant differences between CT-density curves of two phantoms in the range from soft tissues to dense bone,the maximum is up to 500 HU.ConclusionsCT-density curves were highly affected by materials of phantoms,scanners and tube voltages.It is necessary to measure the curve with a comfortable phantom and certain scanner to assure the accuracy for dose calculation for treatment planning system.