BACKGROUND:A large number of studies have shown that cast metal post-core has many advantages that it is close to the canal wal has high strength and can shape the core outside the root according to the needs. The cast metal post-core also has good retention, resistance and wel effect on clinical repair of dental defects. OBJECTIVE: To observe the clinical effect of Co-Cr aloy cast post-core and porcelain fused metal combined crowns in restoration of the separated mandibular molar residual crowns and roots. METHODS:Totaly 28 patients (42 teeth) who had the separated mandibular molar residual crowns and roots were enroled, including 10 males and 18 females, aged 18-32 years. After perfect root canal therapy and part of teeth with crown lengthening, teeth were repaired with Co-Cr aloy cast post-core and porcelain fused metal combined crowns. The patients were folowed up for 2 years. The repair effect was evaluated by combining clinical manifestations with X-ray examination. RESULTS AND CONCLUSION: During 2 years of folow-up, 26 cases were repaired successfuly, 2 cases failed, including 1 case of periapical periodontitis and 1 case of periodontitis. These results demonstrate that the cast post-core and porcelain-fused-metal combined crown has a good result on the residual root and crown of the separated mandibular molar.

Objective To investigate the effect of intensive insulin therapy in parenteral nutrition for patients with abdominal operation.Methods 50 patients with 1 week or more complete intestinal nutrition after abdominal surgery and parenteral nutrition stress hyperglycemia were selected and randomly divided into control group (25 cases) and treatment group (25 cases).The control group adopted conventional insulin treatment(10.0 ~11.1 mmol/L blood glucose target value),the treatment group adopted intensive insulin treatment (7.8 ~10.0 mmol/L blood glucose target).The blood glucose time,hospitalization time and cost were compared between the two groups,and the occurrence of complications was recorded.Results In the treatment group,the blood sugar control standard time was (5.16 ±1.25)d,hospitalization time was (7.69 ±2.14)d,which were shorter than those in the control group,the hospitalization expense in the treatment group was (1 045.16 ±114.17)yuan,which was lower than (2 217.18 ± 242.18)yuan of the control group,the differences were statistically significant(t =6.460,6.270,14.499,all P <0.05).The incidence rate of complications of the treatment group was 8.00%,which was significantly lower than 28.00% of the control group,the difference was statistically significant (χ2 =13.550,P <0.05).The mortality rate of the treatment group was 4.00%,which of the control group was 8.00%,the difference was not statistically signifi-cant between the two groups(χ2 =1.418,P =0.233).Conclusion Intensive insulin therapy can effectively control the blood glucose level in patients with non diabetes after abdominal operation,and can reduce the incidence of complications,it is worthy of recommending.

Objective:To do intelligence test in neurotics.Method:30 neurotics were tested by WAIS-RC.Results:The sub-score of digit span in neurotics was lower than norm(p

Objective To analyse CT findings of pleural mensothelioma caused by crocodolite in their living environment.Methods CT findings of malignant pleural mensothelioma in 55 cases were reviewed and analyzed retrospectively.Results Of 55 cases there were localized pleural mensothelioma in 1 accompanied with less pleural effusion and malignant diffuse pleural mensothelioma in 54 ,of which 13 cases had no pleural effusion,30 cases had less or more effusion and 11 cases had a large amount of pleural effusion.In 4 cases,mensotheliomas localized in low-right thorax accompanied pleural effusion in left thorax.The CT findings of these four patients were pleural thickening more than 2 cm.The lesion was manifested as decorative border,nodule and mass of soft tissue and there was much enhancement.Conclusion CT scan is very helpful in detecting the location,extent of pleural mensothelioma and follow-up of patients.

Objective To investigate the imaging features of hypertrophic spinal pachymeningitis(HSP).Methods 2 patients with HSPproved pathologically received both CT and MRI scan. The literatures were reviewed, the clinical data and imaging features of HSP wereretrospectively analyzed.Results The characteristic HSP manifestation of HSP on imaging was the crescent-shaped thickening of spinaldura maters , the thickness of the dura was 5.2 mm and 13 mm respectively in this two cases . Conclusion HSP is of typical imaging characteristic. The diagnosis can be made correctly in combination with clinical data.

To study the regulation effect of Sheng-mai San (SMS)on intestinal dysbacteriosis,ceftriaxone sodium was used to induce intestinal dysbacteriosis in vitro,the bacteria were cultured in the selective medium and enu-merated by plat counting method,and the short chain fatty acid were also analyzed .The results showed that SMS (16.5,11.2,5.5 mg/mL)could significantly inhibit the proliferation of potentially harmful bacteria such as Enterococci,Enterobacteriaceae and promote the proliferation of Lactobacillus and Clostridum.Compared with the model group,the proliferation of Enterococci and Enterobacteriaceae was inhibited by 24.9% and 19.1%,while the proliferation of Lactobacillus and Clostridum was increased by 22.3% and 25.8% respectively in the middle-concentration of SMS group (11.2 mg/mL)at 24 h.Meanwhile,SMS in different concentration significantly increase the accumulation of acetic acid and propionic acid generated by gut microbes which could significantly inhibit the proliferation of harmful bacteria.And SMS showed prebiotic effects on intestinal microflora imbalance induced by antibiotics in vitro.

Objective: To confirm the effectiveness of fluoxetine in treatment of depression associated with apparent life events Method: Sixty-two depressive patients who had a total score of the Life Event Scale of more than 30 were treated with fluoxetine for 6 weeks, diazepam was added if necessary CGI, HAMD and HAMA were used to assess the result Result: At the endpoint, the total score of HAMD decreased from 23?4 at baseline to 10?6, the total score of HAMA was also decreased significantly (23?5 to 10?6) At the meantime, the HAMD sleep factor and CGI severity score were also decreased significantly All above measurements showed improvement at the first week of treatment The adverse effects were mild, with lose of appetite, dry mouth and nausea as the most frequently seen, which had no influence on treatment process Conclusion: Fluoxetine plus diazepam is effective in depressive patients with apparent life events with quick response and mild adverse effects

Objective:To establish a method to determine ferrous succinate in ferrous succinate tablets .Methods:Ion chromatog-raphy was performed on an IonPac AG19(4 mm ×250 mm)anion exchange chromatography column with a guard column of Ion Pac TM AG19( 4 mm ×50 mm);30.00 mmol· L-1 KOH was used as the isocratic eluent at a flow rate of 1.00 ml· min-1 with suppressed conductivity detection ( Curb:75 mA) at the temperature of 30℃.The sample size was 25 μl .Results:The linear range of succinic acid was 2.005 1-25.064 0μg· ml-1(r=0.999 5).The detection limit and quantitation limit was 0.12ng and 0.42ng, respectively. The recovery was 101.45%(RSD=0.43%, n=6).Conclusion:The method is simple, rapid, accurate, reproducible and sensitive , and can be used to determine the ferrous succinate content in ferrous succinate tablets .

Objective:To establish a rapid HPLC testing method for chloroquine phosphate,hydroxychloroquine sulfate and amodiaquine hydrochloride.Methods:The chromatographic separation was performed on a GRACE prevail C18(53 mm×7 mm,3 μm)column,and the column temperature was maintained at 30℃.Acetonitrile-0.3% triethylamine acetonitrile solution (adjusting pH to 3.0 with phosphoric acid) (12∶88) was used as the mobile phase,the flow rate was 1.0 ml· min-1 and the UV detection wavelength was 254 nm.The qualitative research was performed using relative retention time and spectral similarity as the double indicators.The relative correction factor in the quantification analysis was used for the content determination.Results:Three anti-malarial drugs showed good behavior in one chromatographic system.The rapid HPLC testing analysis could be achieved.The qualitative research was more accurate by using the double indicators (UV spectral similarity and relative capacity factor).The HPLC qualitative accuracy was increased.The relative correction factor method for the quantification could effectively reduce the use of reference substances and speed up the analysis of HPLC.Conclusion:The method is rapid and simple,and suitable for the rapid determination of drugs.

Objective To investigate the MR imaging features of chondroblastoma,and to address the correlation with findings of X-ray radiography and CT.Methods The imaging findings including MRI,X-ray radiography and CT of 16 chondroblastomas proved by surgery and pathology were analyzed and correlated with each other. Results All sixteen chondroblastomas involved the epiphyses of long bones,with varying sizes from 0.8 cm to 5.1 cm and lobulation. They were iso- and hypo-intense on T1WI and had heterogeneous signals on T2WI.They were of soft tissue density on CT,and had areas of calcifications and low density.The rims were hypointense on both T1 WI and T2 WI and showed hyperdensity on CT. The lesions were surrounded by edema of bone marrow which was hypointense on T1 WI and hyperintense on fat suppressed T2WI,while on X-Ray film and CT it was hyperdense sclerotic area.The adjacent soft tissues were swelling.Nine cases had periosteal abnormalities on MRI in which 8 of 9 periosteal abnormalities were distant from the primary lesions,and 6 of them showed hyperdense perosteal new bone on CT.Twelve cases had joint effusion on MRI and CT detected 6 of them.The lesions had heterogeneous enhancement,and there was enhancement in areas of edema within bone marrow,periosteal reaction and adjacent soft tissue.Chondroblastoma was intermediate and hyperintense on DWI,and the intermediate areas on both T1 WI and T2WI,together with areas of bone marrow edema,periosteal reaction and soft tissue swelling,were hyperintense on DWI.Conclusions The MRI,X-ray and CT can reflect the pathological changes of chondroblastoma from different aspects.The characteristics of chondroblastoma can be better appreciated by combining different imaging methods.