Objective The objective of this study was to investigate the expression of PSMD10 and Ki67 in epithelial ovarian tumors and its clinicopathological significance.Methods Immunohistochemical method was used to detect the expression of PSMD10 and Ki67 in 21 cases of ovarian benign tumor,31 cases of ovarian borderline tumor and 156 cases of ovarian cancer.Results The positive expression rate of PSMD10 and Ki67 in ovarian cancer was significantly higher than those of ovarian borderline and benign tumor(P<0.05).The positive expression rate of PSMD10 in ovarian cancer tissues was not different from others groups(P>0.05).There was significant different the positive expression rate of PSMD10 from clinical stage,pathological grade and residual tumor diameter(P<0.05).There was a positive correlation between the expression of PSMD10 and Ki67 in ovarian cancer(P<0.01).Conclusion PSMD10 and Ki67 play an important synergistic role in the carcinogenesis and progression of epithelial ovarian cancer.It can be used as an important index to judge the degree of malignancy and progression of ovarian cancer.Joint testing PSMD10 and Ki67 are used to guide the clinical diagnosis.

Objective To study the clinical manifestations,diagnosis,treatments and prognosis of the pulmonary change in mixed connective tissue disease(MCTD).Methods From January 1996 to June 2008,112 patients with definite MCTD in Second Affiliated Hospital of Harbin Medical University were retrospectively studied,and the clinical feature about pulmanary manifestations,echocardiography feature,radiology features and treatments were reviewed and analyzed.44 patients were followed up.Results 48(5 male)had pulmonary manifestation.The median age of onset of symptoms was 39 years and the median duration of disease was three years.The most common manifestation was pleural effusion and(or)pachynsis pleurae(21 cases,18.8%).16 patients(14.3%) had interstitial lung disease,and 8 cases(7.1%)had pulmonary hypertension.The cardinal symptom was short breath.Thirteen patients(11.6%)had dyspnea,4 cases(3.6%)had chest pain,and 4 cases(3.6%)had cough.Reductions of pulmonary function or abnormalities of ultrasonographic image were noted in 25(52.1%)of 48 patients with pulmonary involvement of MCTD who had not any complaint of respiratory symptoms.Six patients had reductions in diffusing capacity of the lung for carbon monoxide(DLCO),17 patients had pulmonary abnormality on chest X ray or CT,and two patients had pulmonary hypertension on doppler echocardiography.Conclusion Pulmonary involment of MCTD may contribute to prognosis seriously.DLCO was the most sensitive parameter.Pulmonary hypertension was the most common cause of death.

Objective:To evaluate the effect of oblique lateral interbody fusion (OLIF) combined with posterior fixation on segmental alignment in the treatment of degenerative spondylolisthesis (DS).Methods:The clinical data of 40 patients with DS who underwent OLIF combined with posterior fixation from July 2017 to December 2019 were retrospectively analyzed. There were 7 males and 33 females, aged 45-81 years, with an average age of 65.7±9.06 years. The total number of slip segments was 43, including 37 levels at L 4, 5, 5 levels at L 3, 4, and 1 level at L 2, 3. According to the decompression methods, the patients were divided into two groups. 22 patients with 23 levels were treated with direct decompression combined with laminectomy, and 18 patients with 20 levels were treated with indirect decompression without laminectomy. All patients underwent preoperative and intraoperative imaging examination. The disc height (DH), slip ratio (SR) and segmental lordosis (SL) were measured by preoperative CT and intraoperative fluoroscopy images. One-way repeated measures ANOVA was used to compare the radiographic parameters of the segmental alignment prior to cage implantation, following cage insertion and posterior fixation. Bonferroni test was used to compare the radiographic parameters between groups. Results:In the OLIF combined with the posterior fixation, there were statistically significant differences in the radiographic parameters of segmental alignment at different stages of operation [DH ( F=147.786, P<0.001) , SR ( F=83.754, P<0.001) , SL ( F=38.296, P<0.001) ]. DH increased from 7.99±1.39 mm to 11.69±1.72 mm ( P<0.001), SR decreased from 10.67%±4.67% to 8.66%±4.50% ( P=0.001) and SL increased from 7.26°±2.73° to 7.85°±2.30° ( P=0.425). After combined posterior fixation, SR further decreased from 8.66%±4.50% to 2.07%±4.00% ( P<0.001), SL further increased from 7.85°±2.30° to 10.72°±3.08° ( P<0.001), and DH had no significant change ( P=1.000). There was no significant difference in radiographic parameters between the direct decompression group and the indirect decompression group when prior to cage implantation, following cage insertion and following posterior fixation, respectively. Conclusion:OLIF combined with posterior fixation in the treatment of DS can further reduce the slip rate of patients with lumbar degenerative spondylolisthesis and increase the lordosis angle of the surgical segment. At the same time, the direct decompression combined with laminectomy has no significant effect on the segmental alignment.

To examine the ability of intrastriatal gene transfer of vascular endothelial growth factor 165 mediated by adenoviral vector to rescue dopaminergic neurons in a rat model of Parkinson's disease (PD), we constructed recombinant replication-deficent adenoviral vectors carrying the gene of VEGF165 (Ad-VEGF), and injected Ad-VEGF (or Ad-LacZ and PBS as controls) into the striatum of rats 7 days after the lesion by 6-hydroxydopamine. The rat rotational behavior analysis and tyrosine hydroxylase (TH) immunohistochemistry were performed to assess the change of dopaminergic neurons. Our results showed that the rats receiving Ad-VEGF injection displayed a significant improvement in apomorphine-induced rotational behavior and a significant preservation of TH-positive neurons and fibers compared with control animals. It is concluded that intrastriatal gene transfer by Ad-VEGF may rescue the dopaminergic neurons from degeneration in a rat model of PD.

Objective To analyze the investigation data of the national schistosomiasis surveillance sites in 2015,so as to provide scientific evidences for schistosomiasis control,elimination and surveillance. Methods According to National Schisto-somiasis Surveillance Programme(version 2014),457 surveillance sites were selected,and the investigation data in residents, floating population,domestic animals and Oncomelania hupensis snails were collected and analyzed from four types of endemic counties. Results A total of 4468 seropositive cases were detected from 133350 residents,among which 4457 residents with seropositive results received the etiological tests,and 71 of them were identified with positive results. Most of them were fisher-men and farmers in the middle and old-aged group. The schistosomiasis infection rate was 0.05% in local population. Totally 977 seropositive cases were examined from 85047 migrant individuals,and 16 positive cases were found out from 966 individuals who took etiological tests,which showed the schistosomiasis infection rate was 0.02% in floating population. Imported cases were found among floating people in four provinces,namely Zhejiang,Hunan,Hubei and Anhui provinces. No acute schistoso-miasis cases were reported. A total of 13406 head of cattle received examinations and only 5 were determined as stool positives. The cattle infection rate was 0.04%. The snail survey covered an area of 22295.13 hm2 and snails were found in an area of 7426.63 hm2,including 3.47 hm2 newly detected area with snails. No schistosome-infected snails were found. Conclusions Based on the collected data from 457 national schistosomiasis surveillance sites of China,the Schistosoma japonicum infection rate is 0.05% in local population which maintains a stably descending trend. In floating population,there are imported schistosome-in-fected persons. Cattle are still a vulnerable species infected with schistosome. Although no infected snails are found,snails are widely distributed in endemic areas. Some provinces detect areas with snails for the first time or the reproduction of snails. The staff in endemic provinces should carry out the surveillance work according to National Schistosomiasis Surveillance Programme (version2014)to improve the surveillance system,and enhance the sensibility and effectiveness of surveillance work.

Objective To investigate the risk factors for early rebleeding after esophageal variceal ligation (EVL) through a multicenter retrospective study.Methods A total of 3289 patients who were hospitalized and underwent EVL in 17 upper second-class hospitals or hospitals of higher classes from January 1999 to May 2015were collected and screened according to the exclusion criteria.A total of 2531 patients were screened out,and a retrospective analysis was performed for their clinical data including age,sex,endoscopic findings,and results of laboratory examination (liver function,biochemical results,routine blood test,and coagulation function) to collect related data.According to the presence or absence of rebleeding within 1 month after EVL,the patients were divided into rebleeding group and non-rebleeding group.SPSS22.0 software was used for independent t-test and one-way analysis of variance,and P ＜ 0.05 was considered statistically significant.Results In the 2531patients who underwent EVL,the rate of early rebleeding after EVL was 6.6％,and the mortality rate was 12.0％.The results showed that sex (P =0.014),number of veins with varices (P =0.203),prothrombin time (P =0.001),prothrombin activity (P=0.014),albumin (P =0),total bilirubin (P =0.011),aspartate aminotransferase (P =0.004),white blood cell count (P =0.342),hepatic encephalopathy (P =0.021),ascites (P =0.027),Child-Pugh class (P =0),Child-Pugh score (P =0),glue injection for gastric varices (P =0.521),gastric varices (P =0.32),shunt (P =0.174),number ofligation points (P =0.001),number of ligation times (P =0.024),number of times of hematemesis before treatment (P =0),number of times of tarry stool (P =0.008),and volume of blood in hematemesis before treatment (P =0) were risk factors for early rebleeding after EVL.The regression analysis showed that male sex,a Child-Pugh score of ＞7.2,and volume of blood in hematemesis before treatment were independent risk factors for early rebleeding after EVL,while an albumin concentration of ＞ 31.5 g/L was the protective factor.Conclusion EVL has a good therapeutic effect in esophageal variceal rebleeding.Among all the factors analyzed,male sex,a Child-Pugh score of ＞ 7.2,and volume of blood in hematemesis before treatment are independent risk factors for earlyrebleeding after EVL,and an albumin concentration of＞ 31.5 g/L is a protective factor.

Objective: To compare the preoperative and postoperative dosimetric parameters in the treatment of spinal metastasis, and to verify the accuracy of 3D-printing non-coplanar template (3D-PNCT) combined with CT-guided ¹²⁵I seed implantation for the treatment of spinal metastasis. Methods: The treatment plans of 7 patients with spinal metastasis (9 lesions) from 2016 to 2018 receiving 3D-PNCT in combination with CT-guided ¹²⁵I seed implantation were retrospectively analyzed. The dosimetric parameters including homogeneity index (HI), conformal index (CI), external index (EI), dose of 90% target volume(D₉₀), mPD, volume percent of 100%, 150%, and 200% prescribed dose V₁₀₀、V₁₅₀、V₂₀₀ and D_2cm³ of spinal cord were compared before and after operation. The british columbia cancer ageny particle implantation quality evaluation standard was applied to evaluate the quality of implantation. Results: The HI, EI and CI, D₉₀, mPD, V₁₀₀, V₁₅₀, V₂₀₀ and D_2cm³ of spinal cord did not significantly differ before and after the plan (all P>0.05). Five were evaluated as excellent and 4 were assessed as good. Conclusion The postoperative dosimetric parameters of 3D-PNCT combined with CT guided ¹²⁵I seed implantation of spinal metastasis are basically consistent with preoperative dosimetric parameters. The postoperative plans are evaluated as excellent or good, suggesting that the technology has a good therapeutic accuracy in the treatment of spinal metastasis.

To examine the ability of intrastriatal gene transfer of vascular endothelial growth factor 165 mediated by adenoviral vector to rescue dopaminergic neurons in a rat model of Parkinson's disease (PD), we constructed recombinant replication-deficent adenoviral vectors carrying the gene of VEGF165 (Ad-VEGF), and injected Ad-VEGF (or Ad-LacZ and PBS as controls) into the striatum of rats 7 days after the lesion by 6-hydroxydopamine. The rat rotational behavior analysis and tyrosine hydroxylase (TH) immunohistochemistry were performed to assess the change of dopaminergic neurons. Our results showed that the rats receiving Ad-VEGF injection displayed a significant improvement in apomorphine-induced rotational behavior and a significant preservation of TH-positive neurons and fibers compared with control animals. It is concluded that intrastriatal gene transfer by Ad-VEGF may rescue the dopaminergic neurons from degeneration in a rat model of PD.

Objective: To provide the normal value of atlas (C₁) inner sagittal diameter in adults thus defining the diagnostic value of developmental canal stenosis at C₁ and to establish the Jishuitan (JST) morphological classification for C₁ developmental canal stenosis in craniovertebral junction (CVJ) anomalies. Methods: From December 2010 to November 2018, 101 patients with various CVJ anomalies (50 males, 51 females; mean age 48.8±12.9 years, range 15-78 years; the anomaly group) and 857 patients with normal CVJ (461 males, 396 females; mean age 50.2±8.3 years, range 21-79 years; the normal group) were enrolled in a retrospective study. In the anomaly group, 92 cases of atlantoaxial dislocation were furtherly divided into three subgroups according to Wadia classification: atlantoaxial dislocation with os odontoideum (OO subgroup, n=33), atlantoaxial dislocation with occipitalization of the atlas (OA subgroup, n=24), atlantoaxial dislocation without both OO and OA (AAD subgroup, n=35); the rest of the anomaly group was combined with Chiari malformation (CM subgroup, n=9). The range of C₁ inner sagittal diameter in each group was measured via CT scan images. The normality of C₁ inner sagittal diameter of each group was tested via Shapiro-Wilk method. T test was performed on C₁ inner sagittal diameter of each group. The diagnostic value of C₁ developmental canal stenosis was defined as the lower bound of 95% confidence interval (CI) for the mean of the normal group. The C₁ morphology of developmental canal stenosis cases in anomaly group were analyzed via CT scan images thus establishing the JST morphological classification for C₁ developmental canal stenosis in CVJ anomalies. Results: The mean C₁ inner sagittal diameter was 29.05±1.60 mm (range, 24.05-33.50, 95%CI: 25.91-32.19). C₁ developmental canal stenosis was defined as C₁ inner diameter ≤ 25.91 mm. The mean C₁ inner sagittal diameter of the whole anomaly group was 26.84±2.04 mm (95%CI: 22.84-30.84), which differed significantly from that in the the normal group (t=10.504, P< 0.01). A total of 33 cases meeting the criteria of C₁ inner diameter ≤ 25.91 mm were diagnosed as C₁ developmental canal stenosis, including 14 cases of the OO subgroup, 4 cases of the OA subgroup, 15 cases of the AAD subgroup and none of the CM subgroup. Based on the C₁ morphological characteristics of 33 cases, the JST classification of C₁ developmental canal stenosis in CVJ anomalies was established, which could be divided into type I-III. Type I: little atlas type, 84.9% (28/33), normal C₁ posterior arch morphology without C₁ occipitalization; Type II: atlas posterior arch incurving type, 3.0%(1/33), C₁ posterior arch incurves towards spinal canal, without C₁ occipitalization; Type III atlas occipitalization type, 12.1% (4/33), furtherly divided into: type IIIa with normal C₁ posterior arch morphology; type IIIb with incurving C₁ posterior arch. Conclusion The normal value of C₁ inner sagittal diameter in adults was from 24.05 to 33.50 mm. The criteria of C₁ inner sagittal diameter ≤ 25.91 mm can be used as the radiographic diagnostic value of C₁ developmental canal stenosis. C₁ developmental canal stenosis in CVJ anomalies can be classified according to the JST classification system.