Objective To investigate the clinical application and effect of micro-planting nail anchorage in orthodontics.Methods Fifty-six patients with oral orthodontic were randomly divided into two groups.29 patients in the observation group were used micro-planting nail anchorage,27 patients in the control group were used the strong non-implant anchorage.Results The reduction of upper incisor inclination and distance in observation group was significantly higher than control group.In another hand,displacement of molars in observation group was significantly lower than control group,the difference was significant(t =9.714,4.491,17.172,all P ＜0.05).Conclusion Micro planting nail can provide the ideal anchorage and orthodontic treatment,and it has the advantages of easy and flexible operation,and it can be instantly afterburner,reliable quality,worthy of clinical application and promotion.

Objective To evaluate the changes of platelet aggregation rate and short-term prognosis after the application of colopidgrel with booster doses or replaced by ticagrelor for ACS patients with CYP2C19 medium-metabolized genotype). Method A total of 302 patients with medium-metabolized genotype were randomly divided into colopidgrel group (75 mg/bid) and ticagrelor group (90 mg/bid). Patients in both groups accepted other conventional treatments of coronary heart disease and accompanied diseases. The platelet aggregation rates and platelet inhibition rates were observed before and after the treatment. The incidence of adverse events was followed up within 1 m. Results After one-week treatment, the platelet aggregation rates of the inducement with 5 μmol/L ADP had statistical significance between colopidgrel group and ticagrelor group ( P = 0 . 019 ) and the platelet inhibition rates had statistical significance difference between the two groups (P = 0.000). No severe adverse events occurred within one-month follow-up and 10 dyspnea patients were all in ticagrelor group. Conclusions Compared with booster doses of clopidogrel, ticagrelor presents obvious inhibitory effect on platelet of patients with medium-metabolized of ACS but it increases the incidence of dyspnea.

OBJECTIVE:To establish a HPLC method for the determination of stavudine and related substances METHODS:The Hypersil C18(4 6mm?150mm,5?m)was used as analysis column The mobile phase was methanol-water(13∶87,V/V) Detection wavelength was 264nm The flow rate was 1ml/min The column temperature was 20℃ RESULTS:The calibration curves was linear in the concentration range of 0 025～0 3mg/ml(r=0 9 999,n=6) The average recovery was 99 26%(RSD=0 76%) The contents of stavudine in 3 batches of semifinished materials and stavudine capsules(imported and domestic)were 99 48%,99 55%,99 32%(materials);97 21%,101 54%,98 92%(imported stavudine capsule);100 57%,97 86%,102 33%(domestic stavudine capsule)respectively CONCLUSION:The method is simple,accurate,sensitive and repeatable and it is suitable for the determination of stavudine and its preparations

Objective To investigate the role of endoscopic nasobiliary drainage ( ENBD) of bile duct instead of T tube drainage during laparoscopic common bile duct exploration (LCBDE). Methods All the patients accepted ENBD before LCBDE / laparoscopic cholecystectomy (LC) + LCBDE. During the operation the stones were extracted by choledochoscopy or crashed with electrohydraulic lithotripsy. After removing all of the biliary stones, the nasobiliary tube still remained in the common bile duct, then primary closure of the exploration wound on the duct wall was made, and with routine abdominal drainage. After operation , radiography of the nasobiliary tube was taken to investigate if there were any residual stones or leakage in the bile duct remained. Subsequently the drainage tube and nasobiliary tube were respectively removed as indicated. Results Totally 43 cases accepted ENBD preoperatively, after 6. 1 days LCBDE was performed, in 36 cases (83. 7% ) the operation was successfully using nasobiliary drainage and primary closure of the duct wound. Postoperative radiography of the duct system through the nasobiliary tube showed only in one case (2. 6% ) a small stone left which was then extracted under ERCP. There were no bile duct stricture and bile leakage, so the nasobiliary tube was removed smoothly. Seven cases ( 18. 6% ) were transferred to open abdominal exploration, 2 of them still kept the nasobiliary tube and the choledochal incisions were primary closed. Totally 38 patients (88.4% ) were successfully drained by ENBD. The abdominal drainage and nasobiliary tubes were removed in average of 3.2 and 6.7 days respectively without complications. Conclusion ENBD is an effective and safe procedure for bile duct drainage in LCBDE. It has the advantage of minimal trauma, short drainage period and rare complications. It suggested that this procedure should be a new satisfied way in treatment of bile duct stones.

B ased on Chinese medicine pharmacological literature data , the property , flavor , toxicity , meridian tropism, efficacy, and clinical application of Chinese herbal medicine were used as a set of attributes. The sup-port vector machine ( SVM ) was used in the establishment of predictive models of 187 pharmacological effects of Chinese herbal medicine respectively. And the cross-validation method was used to determine the accuracy of predictive models . After that , the predictive models with the predictive accuracy rate greater than 90% were used to predicate pharmacological effects of 624 herbals recorded in the Chinese Pharmacopoeia(2010 edition). It was found that the accuracy rate of 108 models was greater than 90%, and the accuracy rate of antibacterial effect predictive model was 99.76%. The highest predictive value of Chinese herbal medicine was the anti-oxi-dation effect of Menispermi Rhizoma.

Objective To investigate the diagnostic value and the efficacy of magnetic resonance tomographic angiography(MRTA) in identifying the relationship between nerves and blood vessels of the patients with idiopathic trigeminal neuralgia.Methods Clinical and MR data of 280 ITN patients were analyzed retrospectively,and then were compared with operation results by using blind con-trol trials.Results Of the 280 ITN patients,there were a total of 267 patients with neurovascular contact,dubious contact or com-pression in affected sides (positive rate:95.3%),and 66 patients in normal sides (false positive rate:23.6%).And of 120 surgical patients,1 18 were found to have neurovascular contact or compression during the operation.There was significant statistical differ-ence between the neurovascular contact or compression in affected sides and that in normal sides (P <0.05).Using operation results as the gold standard,the specificity,sensitivity and the diagnostic accordance rate of MRTA in diagnosing neurovascular contact or compression were 100%,96.6% and 96.7% respectively.Conclusion MRTA can reliably display the relationship between nerves and blood vessels with higher diagnostic sensitivity and accuracy,thus providing the objective basis for the etiological diagnosis of and surgical treatment for ITN.

Objective To study the endoscopic manifestations of moderate or severe chronic atrophic gastritis (CAG) related to their pathologic diagnosis.Methods The correlation analysis was done between gastroscopic manifestations and pathologic diagnosis of 49 patients with moderate to severe atrophic gastritis.Results Pathologic diagnosis of moderate to severe CAG and mild CAG were conducted in 33 and 10 cases respectively, among them, 27 cases with intestinal metaplasia (IM) and 30 cases with atypical hyperplasia. For moderate to severe CAG under gastroscopy compared with their pathologic diagnosis, the coincidence rate was 67 35%; 20 cases out of them, stained in vivo with methylene blue under gastroscopy, the coincidence rate of diagnosis was 80%. Compared with pathologic diagnosis, the gastroscopic manifestations of gastric mucosa have positive prediction rate more than 80%, when several alterations coexisted, positive prediction rate raised to more than 90%, but for every individual alteration, incidence of positive prediction was not significant. Both sensitivity and specificity of each manifestation under endoscopy were more than 95%. Other manifestations such as gastric mucosa thinning, their positive prediction rates of IM and atypical hyperplasia were less than 70%; their sensitivity and specificity were less than 30%. In using coarse and uneven lumped mucosa as the criteria in diagnosing IM and atypical hyperplasia, the sensitivity was 92 85% and 83 33% respectively, and the specificity was the same (about 70%).Conclusion Coincidence rate of diagnosis under gastroscopy and pathology is quite low in moderate to severe CAG, but the knowledge of gastroscopic manifestation and the staining technique might raise this coincidence rate.

Objective:To study the relationship between S-100 protein and prognosis of laryngeal carcinoma.Method:S-100 protein was observed by immunohistochemical methods using anti-S-100 protein antibody in 68 laryngeal carcinoma and 21 non-cancer laryngeal tissues.Result:The result showed that S-100 protein positive were found 43(63.24%)in 68 laryngeal carcinoma.S-100 protein positive cells were interspersed among the tumor cells and in the stroma.S-100 protein were rare in non-cancer laryngeal tissues.The five-year survival rate in patients with S-100 protein positive was significantly higher than that in patients with S-100 protein negative.Conclusion:Our result indicated that the detection of S-100 protein is of value for the prognostic analysis in patients with laryngeal carcinoma.

Objective To investigate the influence of kaempferol on transforming growth factor(TGF)-β1/Smads signal trans-duction in liver tissue of mice with schistosomiasis liver fibrosis. Methods Forty BALB/c mice were randomly divided into a normal control group(8 mice),a praziquantel group(8 mice ),and 4 praziquantel+kaempferol groups with different kaempfer-ol dosages(5,10,15,20 mg/kg respectively,6 mice each group). Besides the normal control group,all the mice in the other 5 groups were infected with Schistosoma japonicum. After the infection for 6 weeks,the praziquantel group and the 4 praziquantel+ kaempferol groups were treated with praziquantel 500 mg/(kg · d) for 2 d,then the mice in the praziquantel group were drenched with normal saline for 6 weeks,and those in the 4 praziquantel+kaempferol groups were drenched with kaempferol 5, 10,15,20 mg/kg respectively for 6 weeks. After the treatment,all the animals were sacrificed by the cervical dislocation meth-od,and the area of egg granuloma and the degree of fibrosis in the livers of the mice were observed by HE and Masson staining. The expressions of TGF-β1,Smad2/3,Smad7 proteins were measured by the immunohistochemical method,and the mRNA lev-els of the 3 proteins were detected by RT-PCR. Results Compared with the mice in the praziquantel group,the areas of egg granuloma of the liver of the mice in the 4 praziquantel+kaempferol groups were smaller,and the degrees of the hepatic fibrosis of the mice were lesser,and their expressions of Smad2 and Smad3 at protein and their mRNA levels were significantly lower (all P<0.05),while the expression of Smad7 at protein and its mRNA level were significantly higher(all P<0.05). Conclu-sion By decreasing the expressions of TGF-β1 and Smad2/3,and increasing the expression of Smad7,kaempferol can signifi-cantly reduce the degrees of hepatic fibrosis and granuloma caused by schistosome eggs after the praziquantel treatment.

OBJECTIVE:To investigate the characteristic and regularity of antineoplastics-induced ADR,and to provide refer-ence for safety use of antineoplastics in clinic. METHODS:In retrospective study,309 cases of antineoplastics-induced ADR col-lected from a special hospital during Jan.-Dec. 2015 were summarized and analyzed statistically. RESULTS:Among 309 ADR cas-es,female (58.25％) was more than male (41.75％). The patients aged more than 40 years old occupied the highest proportion (78.64％). Main route of administration was intravenous dripping(94.82％). There were 225 cases of severe ADR(72.82％). To-tal 268 cases were improved after drug withdrawal or treatment(86.73％). A total of 24 kinds of antineoplastics were involved in 309 ADR cases;most of ADR were induced by docetaxel,followed by cisplatin,cyclophosphamide. Most common organs/system involved in ADR was hemopoietic system (64.24％),main clinical manifestation was myelosuppression. CONCLUSIONS:It is necessary to strengthen ADR monitoring,prevent,discover and treat antineoplastics-induced ADR timely,in order to reduce the harm to the patients and ensure the safety and effectiveness of drug treatment.