miR-452-5p promotes the proliferation, invasion and EMT of esophageal cancer KYSE-150 cells via targeting SOX7 / 中国肿瘤生物治疗杂志

@# [摘 要] 目的：检测miR-452-5p在食管鳞状细胞癌（ESCC）中的表达，并探讨其异常表达对食管癌KYSE-150细胞增殖、侵袭能力和EMT进程的影响及其分子机制。方法：收集2012年3月至2015年12月在河北医科大学第四医院就诊的86名ESCC患者的癌组织样本和对应的癌旁组织，用qPCR法检测miR-452-5p及其他相关基因在ESCC组织和细胞中的表达；向KYSE-150细胞中分别转染miR-452-5p mimic或pcDNA3.1-SOX7构建过表达的细胞株。分析miR-452-5p表达与ESCC病理特征和患者5年OS的关系。用MTS、Tanswell法检测miR-452-5p过表达对食管癌KYSE-150细胞增殖、侵袭能力和EMT进程的影响；用双荧光素酶报告基因实验及TOP/FOP报告基因系统检测miR-452-5p与SRY盒转录因子（SOX7）3'UTR区的结合作用及对Wnt/β-catenin通路活化水平的影响。结果：miR-452-5p在ESCC组织中呈明显高表达（P<0.01），并与ESCC患者的淋巴结转移、TNM分期及5年OS密切相关（均P<0.01）。miR-452-5p过表达明显促进食管癌KYSE-150细胞的增殖、侵袭能力及EMT进程（P<0.05或P<0.01）。SOX7是miR-452-5p的直接靶基因，miR-452-5p通过对SOX7的负向调控影响了Wnt通路活化水平（P<0.05或P<0.01），同时，miR-452-5p表达也受Wnt通路活化水平的影响（P<0.05或P<0.01），其可能为Wnt通路下游靶基因。结论：miR-452-5p通过miR-452-5p/SOX7/Wnt/miR-452-5p正反馈环路提高Wnt/β-catenin通路活化水平，进而促进ESCC KYSE-150细胞的增殖、侵袭能力及EMT进程，miR-452-5p有望成为ESCC患者靶向治疗的潜在靶点及预后评估的新型分子标志物。

Mechanism of Chinese Medicine Against Angiogenesis in Lung Cancer： A Review / 中国实验方剂学杂志

Lung cancer is a malignant tumor with high incidence and high mortality， posing a great threat to human health. Neovascularization may be one of the important mechanisms of lung cancer. The growing lung cancer cells can obtain necessary nutrients from the newly formed blood vessels， thereby causing the spread and metastasis of lung cancer. Nowadays， anti-angiogenic drugs are commonly used in western medicine in addition to surgery，radiotherapy， chemotherapy， and immunotherapy. However， the resulting adverse reactions such as thrombosis， hypertension， diarrhea， and cardiotoxicity have seriously affected the quality of life of patients. As the recognition of angiogenesis deepens， the selection of lung cancer treatment options has become a research hotspot and difficulty in the field of lung cancer treatment. In traditional Chinese medicine（TCM）， angiogenesis is believed to fall into the category of “collateral disease”. The invasion of external pathogens and deficiency of healthy Qi will cause visceral dysfunction， which can be gradually followed by Qi obstruction and blood stasis and phlegm-turbidity congesting the collaterals. As a result， the collateral function will be damaged， providing favorable conditions for the occurrence of lung cancer. More and more modern studies have confirmed that TCM is able to inhibit angiogenesis in the lung cancer， thereby resisting the tumor. In addition， by virtue of the unique advantages， TCM effectively reduces adverse reactions， enhances the efficacy， and improves the living conditions of patients. Moreover， it can synergize with other western medicine therapies in the treatment of lung cancer， exhibiting a wide application prospect. This paper summarizes the mechanisms of TCM in inhibiting angiogenesis of lung cancer reported in relevant experimental research， hoping to provide reference for the optimization of clinical treatment strategies for lung cancer.

LINC01140 regulates the proliferation and invasion of esophageal squamous cell carcinoma Eca109 cells via miR-452-5p/Wnt/β-catenin axis / 中国肿瘤生物治疗杂志

@# [摘 要] 目的： 探讨长链非编码RNA（lncRNA）LINC01140在食管鳞状细胞癌（esophageal squamous cell carcinoma，ESCC）组织及细胞中的表达及其对Eca109细胞增殖与侵袭的影响及其分子机制。方法：选取2012年3月至2015年5月河北医科大学第四医院收治的133例ESCC患者的临床资料和GEPIA数据库中收集的182例ESCC组织及286例食管正常黏膜组织的LINC01140表达数据，以及ESCC细胞系Kyse150、Eca109和TE13。用qPCR法检测癌组织和细胞中LINC01140的表达水平，分析其表达水平与患者临床病理特征及预后的关系。分别将pcDNA3.1-LINC01140、阴性对照（pcDNA3.1-NC）或miR-452-5p mimic及阴性对照（miR-NC）转染到Eca109细胞，MTS、Transwell实验分别检测细胞的增殖与侵袭能力。用双荧光报告基因实验及TOP/FOP报告基因系统检测LINC01140与miR-452-5p的靶向结合作用及LINC01140对Wnt/β-catenin通路活化水平的影响。结果：LINC01140在ESCC组织和细胞中表达均显著下调（均P<0.01），LINC01140低表达与ESCC患者年龄、淋巴结转移、TNM分期及OS密切相关（均P<0.05）。LINC01140过表达明显抑制Eca109细胞的增殖及侵袭能力（均P<0.01）。机制研究表明，LINC01140可能通过竞争结合miR-452-5p影响Wnt/β-catenin信号通路的活化水平继而调控Eca109细胞的恶性生物学行为。结论：LINC01140通过靶向miR-452-5p/Wnt/β-catenin轴促进ESCC细胞的增殖与侵袭能力，其有望成为ESCC患者靶向治疗的潜在靶点及预后评估的标志物。

Effect of mindfulness meditation on brain-computer interface: fMRI perspective

@#This study observed the functional changes in brain activity while performing real and imagery movement using functional MRI (fMRI); and to compare the fMRI changes of motor imagery before and after mindfulness meditation (MM) training for correlation with actual brain computer interface (BCI) performance. Thirty-eight participants completed a randomized control trial consisting of 2 groups (MM and non-intervention control groups) to study the effect of MM on BCI performance. The MM group participated in a 4-week MM intervention programme. Out of the 38 cohorts, five participants from the MM group and five from the control group were fMRI scanned for real and imagery movement of right hand, left hand and both feet, before and after intervention. Statistical parametric mapping was used for post processing and analysis of fMRI data. The MM group showed a significant improvement in BCI performance compared to the control group. The fMRI results showed activation of right hand, left hand and both feet motor imagery at fronto-parietal regions before MM training (p <0.05, family wise error). After MM training, the fMRI results revealed a focused activation in 3 out of 4 of the trained subjects during right hand motor imagery, 2 out of 4 of the trained subjects during both feet motor imagery and 1 out of 4 of the trained subjects during left hand motor imagery, compared to the control group. This is also correlated with the improvement of BCI accuracy of the intervention group after MM training. Mindfulness meditation improves BCI performance and is correlated with focused activation of the fronto-parietal region in fMRI during motor imagery.

The development and evaluation of individualized templates to assist transoral C2 articular mass or transpedicular screw placement in TARP-IV procedures: adult cadaver specimen study

OBJECTIVES: The transoral atlantoaxial reduction plate system treats irreducible atlantoaxial dislocation from transoral atlantoaxial reduction plate-I to transoral atlantoaxial reduction plate-III. However, this system has demonstrated problems associated with screw loosening, atlantoaxial fixation and concealed or manifest neurovascular injuries. This study sought to design a set of individualized templates to improve the accuracy of anterior C2 screw placement in the transoral atlantoaxial reduction plate-IV procedure. METHODS: A set of individualized templates was designed according to thin-slice computed tomography data obtained from 10 human cadavers. The templates contained cubic modules and drill guides to facilitate transoral atlantoaxial reduction plate positioning and anterior C2 screw placement. We performed 2 stages of cadaveric experiments with 2 cadavers in stage one and 8 in stage two. Finally, guided C2 screw placement was evaluated by reading postoperative computed tomography images and comparing the planned and inserted screw trajectories. RESULTS: There were two cortical breaching screws in stage one and three in stage two, but only the cortical breaching screws in stage one were ranked critical. In stage two, the planned entry points and the transverse angles of the anterior C2 screws could be simulated, whereas the declination angles could not be simulated due to intraoperative blockage of the drill bit and screwdriver by the upper teeth. CONCLUSIONS: It was feasible to use individualized templates to guide transoral C2 screw placement. Thus, these drill templates combined with transoral atlantoaxial reduction plate-IV, may improve the accuracy of transoral C2 screw placement and reduce related neurovascular complications. .

Development of software for individualized dosage regimen of valproic acid and carbamazepine / 中国药学杂志

OBJECTIVE: To develop software for individualized dosage regimen of valproic acid and carbamazepine according to population pharmacokinetics and Bayesian estimation method. METHODS: Based on the prior population pharmacokinetic (PPK) information, Microsoft Excel 2010 was employed as the input-output interface to run the PPK program, Nonlinear Mixed Effect Modeling (NONMEM), to estimate the PK parameters and design the regimen. RESULTS: The software fulfills the functions of patient information management, initial dosage design, dosage calculation by maximum a posterior Bayesian estimation (MAPB) and compliance assessment. CONCLUSION: The established software provides a powerful tool in the clinical settings to facilitate the individualized therapy for the epilepsy patients.

Role of prostate stem cell antigen in human pancreatic carcinoma: a tissue microarray-based study / 南方医科大学学报

<p><b>OBJECTIVE</b>To investigate the expression of prostate stem cell antigen (PSCA) in human pancreatic carcinoma and explore its role in the oncogenesis of pancreatic cancer.</p><p><b>METHODS</b>A pancreatic carcinoma tissue microarray was constructed, which contained 10 normal adult pancreas tissues, 12 chronic pancreatitis tissues and 78 pancreatic carcinomas. Immunohistochemistry was employed to detect the expression of PSCA, and the relation between PSCA expression and the clinicopathological factors of pancreatic carcinoma was analyzed.</p><p><b>RESULTS</b>The positivity rate of PSCA in pancreatic carcinoma was 79.5% (62/78), and PSCA staining was more intense in the malignant cells than in the benign cells (chi2=15.81, P<0.005) and chronic pancreatitis tissues (chi2=11.33, P<0.005). No obvious association was found between PSCA expression and the other variables of pancreatic carcinoma (including gender, age at surgery, tumor grade, and TNM stages).</p><p><b>CONCLUSION</b>The expression of PSCA can be related to the development of pancreatic cancer, but not to the clinicopathological factors of the tumor.</p>