Objective To investigate the CXCR 7 protein expression when CXCR 7-shRNA transfected into human gastric cancer cell which mediated with lentivirus vector combined with Rhizoma Paridis Total Saponin. Methods Three shRNA sequences of CXCR 7 and one negative control sequence were designed and synthesized, and recombinant lentiviral vectors with pSilencerTM 4.1 system were established. Transfection of HEK 293 T cells and packaging viral were finished and the titers were detected. Transfection of all recombinant lentiviral vectors and negative control vector were finished and expression of CXCR 7 mRNA were detected by RT-PCR method. Silence efficiency in groups were determined and the expression vector with highest silence efficiency was selected for next experiments. To detect the effect of SGC 7901 cell proliferation by CXCR 7-shRNA transfection and combined with Rhizoma Paridis Total Saponin intervention with MTT. To detect the effect of SGC 7901 cell expression of protein by CXCR 7-shRNA transfection and combined with Rhizoma Paridis Total Saponin intervention with Western blot. Results The packaging of three lentiviral vector and negative control sequence are successful which is confirmed by gene sequencing and the titer are 4.9×108 pfu/mL, 3.6×108 pfu/mL, 5.2×108 pfu/mL, 2.0×108 pfu/mL respective. The expression quantity of CXCR 7 mRNA in positive groups are lower than negative control group(P<0.05)and inhibition ratio to CXCR 7 in CXCR 7-shRNA-1 and combined with Rhizoma Paridis Total Saponin intervention group is higher than the other two groups(P<0.05). The proliferation level of tumour cell is significant reduction after CXCR 7-shRNA-1 transfection and have a significant difference comparing to the group without transfection(P<0.05). The expression of CXCR 7 protein is significant reduction after CXCR 7-shRNA-1 transfection comparing to the group without virus vector and negative control group and have a significant difference(P<0.05). Conclusion The construction of three CXCR 7-shRNA lentiviral expression vector are successful and expression level of protein and CXCR 7 mRNA are down-regulated effectively after transfection and combined with Rhizoma Paridis Total Saponin intervention. It maybe means that CXCR 7 gene takes an important role in the process of gastric cancer proliferation and invasion.This is foundation for further study of gastric cancer gene therapy using CXCR 7/CXCL 12 biological axis as a target.

Objective To assess the early diagnosis of acute mesenteric artery embolism and the clinical outcome of embolectomy.Methods The clinical data of 21 patients with superior mesenteric artery embolism between 1999 and 2005 were retrospectively analyzed.The patients were divided into two groups according to the operation time interval after onset of symptoms.Group I(n=9): patients were operated on in the first 6 hours after onset of symptoms;group II(n=12): patients were operated on more than 6 hours after onset.Urokinase administration directly into the superior mesenteric artery was an additional procedure during the embolectomy,and postoperative heparin anticoagalation was used in all patients.Results The circulation of the intestine returned to normal in 12 patients(all of the 9 patients in group I and 3 patients in group II) 30 minutes after embolectomy and administration of urokinase.Segmental intestinal resection was necessary in 4 patients and extended intestinal resection in 5 patients in group II.The motality of group II was 41.6% and 0 in group I.Conclusions Early recognition and prompt treatment can reduce the incidence of bowel necrosis and mortality rate of patients with superior mesentevic artery embolism.

Objective:To explore the relationship between the changes of total cholesterol (TC), C-reactive protein (CRP), vascular endothelial growth factor (VEGF) and the degree of false lumen thrombosis after thoracic endovascular aortic repair (TEVAR) and its clinical significance.Methods:A total of 95 patients with aortic dissection admitted to the Affiliated Hospital of Jining Medical College from June 2015 to July 2020 were selected for retrospective study. All patients were treated with TEVAR. According to the disappearance of false lumen detected by computed tomography (CT) angiography six months after operation, 95 patients were divided into complete disappearance group ( n=43) and incomplete disappearance group ( n=52). The levels of plasma TC, CRP and VEGF in the two groups were compared before operation and 1 and 3 months after operation, as well as the degree of false lumen thrombosis. Spearman′s method was used to analyze the relationship between the levels of plasma TC, CRP and VEGF and the degree of postoperative false lumen thrombosis; multivariate logistic regression was used to analyze the factors affecting the disappearance of false lumen after TEVAR; The receiver operating characteristic (ROC) curve and area under the curve (AUC) were used to analyze the value of each index in predicting the complete disappearance of false lumen. Results:The plasma levels of TC, CRP and VEGF in the complete disappearance group were lower than those in the incomplete disappearance group 1 and 3 months after operation (all P<0.05). The degree of false lumen thrombosis in the complete disappearance group was significantly different from that in the incomplete disappearance group 1 and 3 months after operation (all P<0.05). The plasma levels of TC, CRP and VEGF 1 and 3 months after TEVAR were negatively correlated with the degree of false lumen thrombosis (all P<0.05). Multivariate logistic regression analysis showed that the plasma levels of TC, CRP and VEGF 1 and 3 months after operation were correlated with the disappearance of false lumen (all P<0.05). With the passage of time, the AUC of each index to predict the complete disappearance of false lumen gradually increased. At 3 months after operation, the AUC of TC, CRP, VEGF and combined prediction of the complete disappearance of false lumen were 0.706, 0.899, 0.781 and 0.943, respectively (all P<0.05). Conclusions:The changes of plasma TC, CRP and VEGF levels after TEVAR are related to the degree of false lumen thrombosis and the disappearance of false lumen in patients with aortic dissection. Combined examination of the three can be an effective method to predict the complete disappearance of false lumen.

Objective To investigate the feasibility of differentiating lymph node metastases of four types of primary tumors (lymphoma, lung adenocarcinoma, lung squamous cell carcinoma and cholangiocarcinoma) using gemstone spectral imaging (GSI) . Methods Three cases with lymphoma (28 lymph node), five cases with lung adenocarcinoma(30 lymph node), four cases with lung squamous cell carcinoma(24 lymph node) and two cases with cholangiocarcinoma( 10 lymph node) were evaluated by germstona spectra imaging CT scans. Imaging protocol included unenhanced conventional CT scan (120 kVp) ,enhanced GSI (80/140 kVp) on arterial phase and conventional CT scan (120 kVp) on portal phase. CT attenuation values of lymph nodes in the monochromatic images at 11 sets of keV levels (40-140 keV, 10 keV step) and the iodine and water contents of these lymph nodes were measured. All results were analyzed with ANOVA and t test. Results The optimal monochromatic level was 70 keV for the optimal contrast-noise ratio (CNR) of metastatic lymphadenopathy. The CT attenuation values of metastatic lymphadenopathy were (81.36 ±9. 81 ), (58.33 ± 21.55 ), (56. 47 ± 10.62) and (73. 57 ±4. 43 ) HU,respectively, at 70 keV( F = 17.29, P ＜0. 01 ). There were significant differences in CT attenuation values between lymphoma and lung adenocarcinoma, between lymphoma and lung squamous cell carcinoma and between lung squamous cell carcinoma and cholangiocarcinoma (P ＜ 0. 05 ). The differences in CT attenuation values were significant between cholangiocarcinoma and lung squamous cell carcinoma, between cholangiocarcinoma and lymphoma ( P ＜ 0. 05 ). There was no difference in CT attenuation values at all 11 sets of keV levels between lung squamous cell carcinoma and lung adenocarcinoma ( P ＞ 0. 05 ). The iodine contents of lymphoma, lung adenocarcinoma, lung squamous cell carcinoma and cholangiocarcinoma were ( 1. 93 ± 0. 04 ), ( 1.16 ± 0. 15 ), ( 1.25 ± 0. 21 ) and ( 1.44 ± 0. 04 ) g/L, respectively. The water contents of lymphoma, lung adenocarcinoma, lung squamous cell carcinoma and cholangiocarcinoma were (1029.40 ± 20. 85), (1024.98 ± 11.19), (1022.12 ± 12. 94) and (1030.87 ± 10.10) g/L,respectively. Except between lung squamous cell carcinoma and lung adenocarcinoma, the differences in the iodine contents of metastatic lymphadenopathy were significant among tumors ( P ＜ 0. 05 ). There was no difference in the water contents of metastatic lymphadenopathy among tumors ( P ＞ 0. 05 ). Conclusions Although CT spectral imaging fails to differentiate metastatic lymphadenopathy of lung adenocarcinoma and lung squamous cell carcinoma, it is also a promising method of distinguishing metastatic lymphadenopathy of malignant tumors by CT attenuation values in monochromatic images and iodine contents in material density images. The optimal monochromatic level was determined to be at 70 keV for providing the optimal CNR of metastatic lymphadenopathy.

Objective To study the expression and significance of CD68 and TGF-β2 in benign prostatic hyperplasia(BPH).Methods The immunohistochemistry PV two step method was used to detect the expression level of CD68 and TGF-β2 in 90 cases of benign prostatic hyperplasia and combined with clinical data were analyzed.Results Positive rate of CD68 as macrophages marker was 86%(77/90) in the epithelial cells,positive rate of TGF-β2 as transforming growth factor marker was 79%(71/90) in epithelial cells and stromal cells. Immune inlfammation mediated by macrophages,with coloring degree deepening,the degree of immune inlfammation increased,larger prostate volume(P<0.01),IPSS score higher (P<0.01),maximum urinary lfow rate lower(P<0.01),the dffierences between groups were statistically significant.Conclusions This point may indicate immune inlfammation play an important role in the development process of BPH and help to complete the pathogenisis theory.

BACKGROUNDOveractive bladder (OAB) is a series of symptoms with high prevalence in elderly people. This study was conducted using the overactive bladder symptom score (OABSS) to evaluate the efficacy of solifenacin succinate for the treatment of OAB.

METHODSThis was a prospective, multicenter, single-arm, 12-week study that enrolled 241 OAB patients. The patients received 5-10 mg/day solifenacin. Changes in OABSS, symptoms from voiding diary, perception of bladder condition (PPBC) score, international prostate symptom score (IPSS) and quality of life (QOL) were evaluated at weeks 0, 4, and 12. The relationship between OABSS and PPBC score or parameters of voiding diary was also evaluated.

RESULTSAt baseline, the mean OABSS for all patients was 9.41 ± 2.40, and was reduced significantly at week 12 (-3.76 points; 61.21%, P < 0.0001). The OABSS subscore, PPBC score, IPSS, and QOL were also significantly reduced during the study (P < 0.0001). The overall incidence of adverse events was 19.91% (44 cases). The gastrointestinal system was the most commonly affected (11.31%). Around 5.88% of the cases had adverse events related to the genitourinary system. There was a strong correlation between OABSS and urinary symptoms that was recorded in the 3-day voiding dairy.

CONCLUSIONSWe showed that solifenacin was clinically effective for relieving OAB symptoms, considering the balance between efficacy, patients' well-being, and tolerability. OABSS integrates four OAB symptoms into a single score and can be a useful tool for research and clinical practice.

Adult ; Aged ; Female ; Humans ; Male ; Middle Aged ; Muscarinic Antagonists ; therapeutic use ; Prospective Studies ; Quality of Life ; Quinuclidines ; therapeutic use ; Solifenacin Succinate ; Tetrahydroisoquinolines ; therapeutic use ; Treatment Outcome ; Urinary Bladder, Overactive ; drug therapy