The author probed into the inherent advantages and constraints of private medical institutions in Chongqing by means of qualitative interviews and questionnaire survey.The study found private medical institutions with small scale,weak technical team and hardship in survival,and recommended better supporting policies,long-term development strategy and fair competition environment.These efforts will boost scientific development of such institutions.

Objective To explore the operative methods for senile patients with cardiac carcinoma.Method 38 senile patients with cardiac carcinoma in developing stage and administered total gastrectomy were analyzed and 1～5 years follow-up were given.Results No operation induced death and no anastomosis fistular occured and the 1,3,and 5-year survival rates were 73.68%,52.63%,and 22.86% respectively.Conclusion Laparotomy might be the optimal treatment to the senile patients with cardiac carcinoma.Reconstruction of digestive tract might be suitable for most of the senile patients with developing cardiac carcinoma.Total gastrectomy may diminish the occurrence of complications and may give a better long-term survival rate.

Objective To investigate the expression of SHP-1 and JAK1 mRNA in acute leukemia patients and their impact on disease development,and outcome of the primary chemotherapy.Methods Semi-quantitative reverse transcription polymerase chain reaction was used to measure the expression of SHP-1 and Janus kinase 1(JAK1)mRNA in 93 patients with acute leukemia(AL)and 20 healthy adults as normal 、controls(NC).Results The expression of SHP-1 mRNA in de novo AL patients was significantly lower than that in NC group(P=0.000),which was elevated when complete remission(CR)was achieved(P=0.032)and decreased after the disease relapsed (P=0.015).The expression of JAK1 mRNA in NC group was a lower than that in de novo AL group, but with no statistical significance(P=o.051).While there was statistical significance between NC group and relapsed AL group(P=0.047).The complete remission(CR)rate of the primary chemotherapy in SHP-1 positive group Was 88.9%,but 60.38%in negative group,and there was a statistical significance between them(P=0.018).There Was a negative correlation between the expression level of SHP-1 and JAKI mRNA (P=0.048).Conclusion The expression of SHP-1 mRNA Was significantly decreased or absent in the specimens of acute leukemia patients,and the positive expression of SHP-1 mRNA may be proposed as a factor of preferable therapeutic efficacy in de novo AL and a marker for the progress of the disease.The abundance of JAK1 mRNA was possibly elevated in patients with acute leukemia.

The nitrate-N content in KNO3 solution and soil was rapidly predicted using techniques of mid-infrared spectroscopy, in which 15 NO-3 and 14 NO-3 were distinguished and predicted. The results showed that the characteristic band of nitrate in solution and soil was 1200-1500 cm-1 , and compared with 14 NO-3 , the red shift of characteristic band of 15 NO-3 was about 35 cm-1 . In the characteristic band of nitrate, absorption band increased with the nitrate nitrogen concentration with less interference absorption. The linear regression was made between the first principal component of characteristic band and nitrate-N content, and correlation coefficient was more than 0 . 9840 , indicating that the technique of mid-infrared attenuated total reflectance spectroscopy could be applied for rapid monitoring of nitrate in solution and soil. Meanwhile, based on the red shift characteristic of 15 NO-3 absorption band, the method of partial least squares were involved to predict the nitrate-N of different N-isotope labeled in solution and soil, resulting that all the prediction models reached excellent levels. For 14 NO3-N and 15 NO3-N in solution, the correlation coefficients ( R2 ) were 0. 9980 and 0. 9982 respectively, and ration performance to standard deviations ( RPD ) were 6. 44 and 4. 76, respectively. While for 14 NO3-N and 15 NO3-N in soil, the correlation coefficients ( R2 ) were 0. 9794 and 0. 9679, and RPD were 5. 75 and 4. 78, respectively. Therefore, the technique of mid-infrared attenuated total reflectance spectroscopy can be applied for rapid monitoring different N-isotope labeled nitrate in solution and soil, to provide a new in situ and fast time method to study nitrification process in soil.

ObjectiveTo explore the pathogeny, diagnosis and rehabilitation of central pontine myelinolysis.MethodsClinical data of four patients with central potine myelinolysis were studied retrospectively.ResultsAll of them had pseudobulbar palsy and dystonia; three had coma; two had history of hyposodemia ameliorated rapidly, one had history of hypersodemia ameliorated rapidly. All of them had focuses in pons; three had focuses beyond pons. All patients had good prognoses.ConclusionHistory of hyposodemia ameliorated rapidly is a usual pathogeny of central potine myelinolysis, integrative measures of rehabilitation can improve prognosis and quality of daily life.

Objective To investigate the reasons of complications after ultrasound-guided PTBD and explore measures for their management. Methods The clinical data of 753 patients with obstructive jaundice treated with ultrasound-guided PTBD in our hospital from January 2001 to June 2008were retrospectively analyzed. Results The 753 patients received a total of 791 treatments of PTBD.The occurring rates of severe, common, and long-term complications were 1.14 % (9/791), 11.88 %(94/791 ) and 4.3% (9/791), respectively. Only 1 patient died of manipulation-related complications.Conclusion Ultrasound-guided PTBD is an effective method for treatment of obstructive jaundice.

Soil particles are very heterogeneous in microscopic scale, which is manifested the double-layer structure made of the soil organic matter and mineral matter. In this work, Fourier by transform infrared photoacoustic spectroscopy ( FTIR-PAS) combined with independent component analysis ( ICA) was utilized for in situ depth-profiling of the manmade complex film, in order to lay a foundation of in situ characterizing the heterogeneous soil organic-mineral complex. The complex film was composed of the PE preservative film and office adhesive tape. The moving velocity of infrared photoacoustic spectrometer was set to 0. 16 cm/s, 0. 32 cm/s and 0. 64 cm/s, respectively. Independent component analysis ( ICA ) was performed on the photoacoustic spectra of the heterogeneous complex film. Results showed that the depth-resolved information of the complex film could be derived by changing the moving velocity, and the estimated thickness of PE film was 5. 4-7. 6 μm, which was close to the actual thickness 7 ± 1 μm. Moverover, the spectral features of the polyethylene ( PE) preservative film and office adhesive tape were extracted from the photoacoustic spectra of the heterogeneous complex film by means of ICA. Depth profiling of complex film samples showed that FTIR-PAS could be used as a new analytical tool to study heterogeneous soils, especially soil organic-mineral complexes.

Adult ; Aged ; Aged, 80 and over ; Humans ; Middle Aged ; Noninvasive Ventilation ; Nutritional Support ; Pneumoconiosis ; complications ; therapy ; Positive-Pressure Respiration ; Respiratory Insufficiency ; etiology ; therapy ; Retrospective Studies

Objective A retrospective cohort study was carried out to observe the long-term effect of ESD in treating early gastrointestinal cancer or precancerous lesions. Methods The clinical and follow-up data of 73 patients were collected. Kaplan-Meier, Log-rank and Breslow test and Cox's proportional hazards regression model were used to analyze the data. Results The median survival time in the gastric and colo-rectal early cancer or precancerous lesions is longer than 65 months in our study, respectively. For esophagus, the median survival time was 44.5 months; the disease free survival time (DFS) after ESD was significantly reduced in the esophagus, compared to the stomach and colo-rectum (χ2 = 12.61, P = 0.000; χ2 = 7.09, P = 0.008); the degree of atypia (or infiltration), and lesion size were considered to be two factors to influence the DFS after ESD (P = 0.027, OR^ =2.38, 95%CI:1.10 ~ 5.12, P = 0.074, 95%CI; OR^ =0.90, 95%CI: 0.80 ~ 1.01). Conclusion ESD is an effective curative treatment in the resection of early upper gastrointestinal cancer and precancerous lesions. The degree of atypia (or infiltration) was concluded as an independent risk factor for the DFS post-ESD, and the size of lesion was a valuable parameter with regard to the recurrence after ESD procedure.