Influence of far upstream element binding protein 1 gene on chemotherapy sensitivity in human U251 glioblastoma cells

Introduction

The aim of this study was to determine the influence of the far upstream element binding protein 1 gene (FUBP1) on chemotherapy sensitivity in human U251 glioblastoma cells.

Material and methods

Real-time polymerase chain reaction (PCR) was used to determine the expression of the FUBP1 gene in 43 cases of human brain gliomas. Western blot analysis was used to determine the inhibitory effect of RNA interference on FUBP1 gene expression. Methyl thiazolyl tetrazolium assay (MTT) and flow cytometry methods were used to determine the growth inhibitory rate and apoptosis rate of the U251 cells with FUBP1 silencing. The growth inhibitory rate and apoptosis rate were further determined after treatment of those U251 cells with cisplatin (DDP).

Results

The expression of FUBP1 mRNA was up-regulated significantly in gliomas, 177.65% as much as in peri-cancerous tissues (p < 0.05). The expression of FUBP1 protein was inhibited significantly with siRNA-FUBP1 (p < 0.05). In FUBP1-silenced cells, the growth inhibitory rate increased from 1.4% to 29.5%, and the apoptosis rate increased from 2.68% to 5.84% (p < 0.05 for both). After treating with DDP at various concentrations (1, 3, 5 µg/ml), the growth inhibitory rate of FUBP1-silenced cells increased from 14.42%, 17.46% and 23.55% to 21.69%, 27.51% and 37.57%; the apoptosis rate increased from 8.85%, 14.37% and 18.21% to 13.25%, 18.46% and 26.52%.

Conclusions

The up-regulation of FUBP1 relates to the carcinogenesis of gliomas. FUBP1 silencing increases the growth inhibitory rate and apoptosis rate of the U251 cells, and enhances the chemotherapy sensitivity of U251 cells to DDP.     

Splenorenal shunt via magnetic compression technique: a feasibility study in canine and cadaver

Introduction: The concept of magnetic compression technique (MCT) has been accepted by surgeons to solve a variety of surgical problems. In this study, we attempted to explore the feasibility of a splenorenal shunt using MCT in canine and cadaver.

Material and methods: The diameters of the splenic vein (SV), the left renal vein (LRV), and the vertical interval between them, were measured in computer tomography (CT) images obtained from 30 patients with portal hypertension and in 20 adult cadavers. The magnetic devices used for the splenorenal shunt were then manufactured based on the anatomic parameters measured above. The observation of the anatomical structure showed there were no special structural tissues or any important organs between SV and LRV. Then the magnetic compression splenorenal shunt procedure was performed in three dogs and five cadavers. Seven days later, the necrotic tissue between the two magnets was shed and the magnets were removed with the anchor wire.

Results: The feasibility of splenorenal shunt via MCT was successfully shown in both canine and cadaver, thus providing a theoretical support for future clinical application.     

EphA5 protein,a potential marker for distinguishing histological grade and prognosis in ovarian serous carcinoma

Background

Ovarian serous carcinoma (OSC) is the most common ovarian epithelial malignancy. Disregulation of Eph/ephrin signaling has been implicated in oncogenesis and tumor progression. EphA5 receptor is one of large families of Eph tyrosine kinase receptor and is documented in the development of nervous system. Till now, there is no published data about the role of EphA5 in ovarian epithelial neoplasmas.

Methods

This study aims to investigate the expression of EphA5 protein in ovarian serous carcinoma, and its relationship to clinical pathological characteristics. Sixty-one cases of ovarian serous carcinoma, 24 cases of benign ovarian serous tumors, 42 cases of serous borderline tumors and 20 cases of normal fallopian tubes were examined using immunohistochemical staining. The relationship between EphA5 expression and pathological parameters was analyzed. Kaplan-Meier survival function was used to analyze prognosis of patients.

Results

Immunostaining analysis demonstrated that the EphA5 protein was highly expressed in 100% (20/20) of normal fallopian tube samples, 100% (24/24) of benign epithelial ovarian tumors, 76% (32/42) of ovarian serous borderline tumors, and 31% (19/61) of ovarian serous carcinomas. Loss of EphA5expression was associated with tumor grade (P?<?0.001) and FIGO stage (P?=?0.005). The survival analysis showed that patients with negative or weak expression of EphA5 protein had a poor outcome than those with positive expression (P?=?0.004).

Conclusions

Our results show that EphA5 may be a potential biomarker for distinguishing high-and low-grade ovarian serous carcinoma and a potential prognostic marker.

     

Clinical analysis of thoracoscopic surgery combined with intraoperativeautologous blood transfusion in the treatment of traumatic hemothorax

From January 2013 to January 2015, 19 patients of traumatic hemothorax with hemorrhagic shock were treated in our department by thoracoscopic surgery combined with autologous blood transfusion. This study retrospectively analyzed the therapeutic effect and shared our experience. The average amount of blood transfused back was 662.41 ml ± 269.15 ml. None of the patients developed transfusion reaction and were all discharged uneventfully. Thoracoscopic surgery combined with autologous blood transfusion is effective in the rescue of patients with progressive hemothorax and hemorrhagic shock. When corresponding indications are well managed, treatment for these patients is quicker, safer, and more effective.     

2002-2012年上海市杨浦区社区人群甲状腺癌的发病和生存情况分析

目的 了解上海市杨浦区户籍人群2002-2012年间甲状腺癌的发病率和死亡率,探讨外科治疗对生存的影响.方法 从2002年1月至2012年12月上海市肿瘤登记报告中抽取全部杨浦区户籍人群甲状腺癌发病和死亡资料,年度人口资料来自杨浦区公安局,应用年均变化百分比(APC)模型分析患者发病的时间趋势,应用Kaplan-Meier模型并结合Logrank检验进行生存分析.结果 2002-2012年间杨浦区共报告甲状腺癌新发病例1 488例,占同期全区恶性肿瘤的3.19％.其中男性357例,女性1 131例.甲状腺癌女性平均粗发病率为19.45/105,高于男性(5.85/105,P＜0.05);女性标化发病率为12.15/105,也高于男性(3.69/105,P＜0.05).2002-2012年间杨浦区户籍人群甲状腺癌的发病趋势年均上升(APC=21.72％,P＜0.05).11年间杨浦区因甲状腺癌死亡146例.年均粗死亡率男性为0.69/105,女性为1.79/105 (P＜0.05);标化死亡率男性为0.35/105,女性为0.85/105 (P＜0.05).男性、女性的甲状腺癌死亡率均在60岁之后明显上升.甲状腺癌患者的1～5年生存率分别为97.20％、96.70％、96.10％、95.40％和94.80％.手术治疗组1～5年生存率分别为99.20％、98.90％、98.70％、98.30％和97.90％,高于非手术治疗组(分别为91.9％、90.60％、89.00％、88.00％和86.70％,P＜0.05).结论 上海市杨浦区户籍人群甲状腺癌发病率远高于死亡率,2002-2012年间发病率显著升高而死亡率变化不明显.女性发病率与死亡率均高于男性,手术治疗可延长甲状腺癌患者的生存期.     

The Association of Maternal Body Composition and Dietary Intake with the Risk of Gestational Diabetes Mellitus during the Second Trimester in a Cohort of Chinese Pregnant Women

Objective To investigate the association of maternal body composition and dietary intake with the risk of gestational diabetes mellitus (GDM). Methods A total 154 GDM subjects and 981 controls were enrolled in a prospective cohort study in 11 hospitals from May 20, 2012 to December 31, 2013. Bioelectrical impedance analysis and dietary surveys were used to determine body composition and to evaluate the intake of nutrients in subjects at 21-24 weeks’ gestation (WG). Logistic regression analysis was applied to explore the relationships of maternal body composition and dietary intake with the risk of GDM morbidity. Results Age, pre-pregnant body weight (BW), and body mass index (BMI) were associated with increased risk of GDM. Fat mass (FM), fat mass percentage (FMP), extracellular water (ECW), BMI, BW, energy, protein, fat, and carbohydrates at 21-24 WG were associated with an increased risk of GDM. In contrast, fat free mass (FFM), muscular mass (MM), and intracellular water (ICW) were associated with a decreased risk of GDM. Conclusion Maternal body composition and dietary intake during the second trimester of pregnancy were associated with the risk of GDM morbidity.     

Prevalence and Predictors of Hypertension in the Labor Force Population in China：Results from a Cross-sectionalSurvey in Xinjiang Uygur Autonomous Region

正The objective of this study was to examine the prevalence of hypertension and identify its contributory factors in the labor force population in Karamay.A total of 2819 adults(55.9%male adults)were interviewed and examined.The overall crude prevalence of hypertension was 32.4%.Among 914hypertensive patients,34.8%were aware of their diagnosis,22.1%received treatment,and 5.6%     

吴茱萸碱羟丙基-β-环糊精包合物大鼠在体肠吸收特征

[摘要] 目的 研究吴茱萸碱羟丙基-β-环糊精包合物(EHD)大鼠在体肠吸收特征。方法 制备吴茱萸碱羟丙基-β-环糊精包合物,并测定其理化性质;将健康SD雄性大鼠,随机分为2组,运用单向肠灌流模型对大鼠各肠段吴茱萸碱(EVO)的吸收情况进行考察,使用HPLC法（ C18柱(250 mm×4.6 mm,5 μm),流动相为甲醇:水=75:25(V/V),流速为1.0 mL/min,检测波长为225 nm,柱温35 ℃）测定EVO的含量,并对吸收速率常数(Ka)及有效渗透系数(Peff)进行计算。结果 EHD的傅里叶-红外扫描图谱中,吴茱萸碱特征吸收峰减弱;EHD的差示扫描量热图谱中,吴茱萸碱的吸热峰明显减小;EHD的电镜下形态与物理混合物明显的不同;肠循环液中吴茱萸碱的回收率与精密度符合要求;EHD在十二指肠、空肠、回肠、结肠中的Ka值分别为EVO的9.07、16.22、11.04、28.86倍,差异具统计学意义(P＜0.05)。EHD在十二指肠、空肠、回肠、结肠中的Peff值分别为EVO的2.41、1.52、1.82、1.09倍,在十二指肠处差异有统计学意义（P＜0.05）,其他肠段处差异均无统计学意义（P＞0.05）。结论 EHD能使EVO在大鼠体内的肠吸收得到明显的改善。