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Occlusion of atrial septal defect utilizing occluder devise via minimally invasive right chest approach

Feng LI ; Wei LI ; Ning KANG ; Baosheng GONG ; Dongjin WU ; Fangjie XU ; Zhaokun QIU ; Weihua WU

Journal of Shanghai Jiaotong University(Medical Science).2011;31(3):343-345. doi:10.3969/j.issn.1674-8115.2011.03.022

Objective To evaluate atrial septal defect (ASD) occlusion employing a small right anterior thoracotomy approach. Methods A total of 21 patients with ASD underwent general anesthesia and 2 -3 cm incision was made in the fourth right intercostal space. Utilizing transesophageal or transthoracic echocardiography, the occluder was released using a monotube unit. Results All patients were occluded successfully. No patient required open surgery utilizing extracorporeal circulation. There were no major complications and no evidence of residual atrial shunt. Conclusion ASD occlusion via a minimal surgical incision is safe, less invasive, and has excellent outcomes.

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Research progress of traditional Chinese medicine in the intervention of colorectal cancer stem cells

Limin ZHU ; Keping SHEN

Journal of Shanghai Jiaotong University(Medical Science).2017;37(2):258-261. doi:10.3969/j.issn.1674-8115.2017.02.026

Colorectal cancer stem cells are a small part of cell population with features of stem cell in the colorectal cancer tissues. Tumor stem cells have the self-renewal capability and have been considered as the root of tumor recurrence. They play an important role in the development, progression, relapse, metastasis, and resistance to chemoradiotherapy of tumors. The long-term clinical practice has proved that traditional Chinese medicine has particular advantage on the aspect of resisting tumor recurrence and metastasis. In recent years, with the deep understanding of the theory of colorectal cancer stem cells, the clinical and basic researches of traditional Chinese medicine compound, single herb and active ingredient become hot spots.

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Multidisciplinary diagnosis, treatment, and follow-up of children with clear cell sarcoma of kidney

Qi SHENG ; Tingting LIU ; Kejun HE ; Qin ZHANG ; Zhen TAN ; Xiaojun YUAN

Journal of Shanghai Jiaotong University(Medical Science).2017;37(2):225-229. doi:10.3969/j.issn.1674-8115.2017.02.019

Objective · To investigate the clinical characteristics and multidisciplinary treatment of children with clear cell sarcoma of kidney (CCSK). Methods · Data of seven children with CCSK treated at Xinhua Hospital, Shanghai Jiao Tong University School of Medicine between Jan 2011 and Jan 2016 were collected. The retrospective analysis of clinical manifestations, features of imaging and pathology, treatment, and follow-up was performed. Results · Of 7 children with CCSK, 6 were male and 1 was female with the median age of 28 months (4-59 months), and 3 were at stageⅠ, 2 at stage Ⅲ, and 2 at stage Ⅳ. All cases were discussed and evaluated by multidisciplinary teams, including pediatric hematology/oncology, pediatric surgery, pathology, radiology and radiotherapy. CCCG-WT-2009 protocol was adopted to treat these patients. The median follow-up period was 22 months (8-56 months). Six children survived and one died. Conclusion · The multidisciplinary treatment mode can effectively improve the prognosis of CCSK. CCCG-WT-2009 protocol has good therapeutic effect and high cure rate for children with early stage CCSK, but the treatment of advanced stage CCSK needs to be further explored and perfected.

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Research progress of the bidirectional interaction between gut microbiota and brain

Yijun YOU ; Xiaolong HAN ; Xiaojiao ZHENG ; Aihua ZHAO ; Tianlu CHEN

Journal of Shanghai Jiaotong University(Medical Science).2017;37(2):253-257. doi:10.3969/j.issn.1674-8115.2017.02.025

The gut-brain axis (GBA) is a nerve-endocrine mediated bidirectional communication system between the gut and brain, which links the cognition and emotion in brain to peripheral intestinal function. In recent years, many researches have showed that colonized intestinal microbiota plays an important role in the communication between gut and brain. On one hand, microbiota can influence the development and function of brain via GBA. On the other hand, brain can also change the composition of gut microbiota. These findings gradually become a novel medical research highlight, i.e. the microbiota-gut-brain axis. This paper reviews the interaction between gut microbiota and brain via GBA in order to provide supports for studying functions of gastrointestinal tract and brain, as well as the treatment of related diseases.

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Research progress of mechanisms outer membrane proteins of Helicobacter pylori and its adherence

Qiaoyun ZHAO ; Yong XIE

Journal of Shanghai Jiaotong University(Medical Science).2017;37(2):249-252. doi:10.3969/j.issn.1674-8115.2017.02.024

Helicobacter pylori is a predominant pathogen inducing long-term chronic infection of stomach. Its outer membrane proteins (OMPs) mainly include lipoprotein, fimbriae protein and some adhesions. The adhesions are closely related to the pathogenic processes of adherence, colonization, persistent infection and severe clinical outcomes. In addition, the fact that adherence is vital for colonization and pathogenicity has made it a focus to study the vaccines against adherence. The OMPs related to adherence, their receptors, mechanisms of adherence, and the vaccines are summarized in this review.

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Preparation of liposomal pemetrexed and its effects on breast cancer

Fang BAI ; Ting CHEN ; Yan LIU ; Kejin WU ; Qing CHEN ; Yunshu LU ; Meixin GE

Journal of Shanghai Jiaotong University(Medical Science).2017;37(2):190-192. doi:10.3969/j.issn.1674-8115.2017.02.011

Objective · To prepare the liposomal pemetrexed and investigate its effects on MCF-7 breast cancer cells in vitro and nude mice bearing MCF-7 xenograft tumors. Methods · Liposomal pemetrexed was prepared by film dispersion method. Inhibition of MCF-7 breast cancer cell lines was evaluated by CCK-8 method, and anti-tumor effects were investigated on Balb/c nude mice bearing MCF-7 xenograft tumors. Results · Liposomal pemetrexed inhibited the growth of MCF-7 cells. When the concentrations of pemetrexed were 0.20, 0.40 and 10.00 μg/mL, the cell viability in experiment group (liposomal pemetrexed) was significantly lower than that in control group (pemetrexed of same concentration gradient), with P values of 0.013, 0.035 and 0.041, respectively. Compared with blank group (same volume of PBS), the volumes and weights of tumors of nude mice in experiment group(liposomal pemetrexed) and control group (same volume of pemetrexed) were significantly lower, and the volume and weight of tumor in experiment group were also significantly lower than those in control group (P=0.000). Conclusion · Compared to bulk drug of pemetrexed, liposomal pemetrexed can inhibit the growth of MCF-7 breast cancer cells and the Balb/c nude mice bearing MCF-7 xenograft tumors.

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Analysis of variants located in 3'UTR regions of NOTCH1 and JAG1 genes for children with conotruncal heart defects

Lijuan XU ; Huidong LIU ; Rang XU ; Fen LI ; Sun CHEN

Journal of Shanghai Jiaotong University(Medical Science).2017;37(2):184-189. doi:10.3969/j.issn.1674-8115.2017.02.010

Objective · To explore the correlation between variants located in 3' untranslated regions (3'UTR) of NOTCH1 and JAG1 genes and conotruncal heart defects (CTD). Methods · Six hundred CTD children without 22q11 deletion and three hundred healthy children were enrolled in this hospital-based case-control study. Variants located in the 3'UTR regions of NOTCH1 and JAG1 genes were detected by high-throughput sequencing. The accuracy of the variants were verified by PCR and Sanger sequencing. Online software PicTar, TargetScan and microRNA.org were used to make functional predictions. Results · One mutation and three SNPs were found in the 3'UTR of NOTCH1. Three mutations and six SNPs were found in the 3'UTR of JAG1. The genotypic distributions of two SNPs (rs3840074 and rs8708) located in JAG13'UTR between CTD group and the controls were statistically significant (both P<0.05). Results of prediction showed that all the four mutations and two meaningful SNPs could bind to microRNA. Conclusion · The variants located in 3'UTR regions of NOTCH1 and JAG1 genes may be related to the occurrence of CTD.

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Effects of SB203580 on biological functions of human extravillous trophoblast cells under oxidative stress

Huaqiao MU ; Hongbo QI ; Xiru LIU

Journal of Shanghai Jiaotong University(Medical Science).2017;37(2):172-176. doi:10.3969/j.issn.1674-8115.2017.02.008

Objective · To investigate the effects of a p38 mitogen-activated protein kinase (p38 MAPK) inhibitor SB203580 on biological function changes of human extravillous trophoblast cells induced by hypoxia/re-oxygenation (H/R). Methods · In-vitro cultured early pregnancy villus explants and human extravillous trophoblast cell line HTR8/SVneo were assigned to 4 groups according to different interventions, i.e. control group, SB203580 group (p38 MAPK inhibition), H/R group (simulation of preeclampsia by the oxidative stress model), and SB203580+H/R group. The effects of SB203580 on biological functions of human extravillous trophoblast cells under oxidative stress in early pregnancy villus explants were observed. Protein expression and phosphorylation of p38 MAPK in HTR8/SVneo cells were measured with Western blotting. Cell migration and invasion were observed with Transwell migration and Matrigel invasion assay, respectively. Gelatin zymography was used to measure the activity of matrix metalloproteinase (MMP) -2/9 in supernatant. ELISA was used to detect the levels of soluble fms-like tyrosine kinase-1 (sFlt-1) and soluble endoglin (sEng). Results · SB203580 could promote the exogenous migration of human extravillous trophoblast cells in early pregnancy villus explants under oxidative stress. H/R could decrease the migration and invasion of HTR8/SVneo cells , and increase the phosphorylation level of p38 MAPK in HTR8/SVneo cells and the secretion of sFlt-1 and sEng. SB203580 could increase the activity of MMP2/9 in supernatant and cell migration and invasion, decrease the phosphorylation level of p38 MAPK in HTR8/SVneo cells under oxidative stress and the secretion of sFlt-1 and sEng. Conclusion · SB203580 can protect biological functions of human extravillous trophobalst cells under oxidative stress.

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Current smoking prevalence and influencing factors among university students in Shanghai

Ziyan ZHU ; Pinpin ZHENG

Journal of Shanghai Jiaotong University(Medical Science).2017;37(2):155-160. doi:10.3969/j.issn.1674-8115.2017.02.005

Objective · To understand current smoking status and analyze its influencing factors among university students in Shanghai, and provide reference and guidance for further efforts of tobacco control in campus. Methods · A total of 4816 students from 19 col eges in Shanghai were selected by stratified multi-stage cluster sampling and the sample size in each part was decided by proportion of col eges and types of specialities. Self-administered questionnaire was conducted to understand the current tobacco use and its influencing factors were analyzed. Results · The overal smoking prevalence of col ege students in Shanghai was 5.80%. General y, smoking prevalence of junior col ege students was higher than that of undergraduates (11.27% vs 3.68%, P<0.05) and smoking prevalence of male students was higher than that of females (11.10% vs 0.95%, P<0.05). Nonsmokers endorsed higher awareness on the harm of smoking and second-hand smoking than smokers(P<0.01). Besides, nonsmokers had a more positive attitude towards tobacco control policy than smokers (P<0.01). Students who studied in the junior college, males, in the senior grade, majored in liberal arts, with higher monthly living expenses, held negative attitude in raising cigarette prices and supporting of establishing smoke-free campuses were more likely to be smokers. Conclusion · Tobacco use among university students in Shanghai deserves attention. It is necessary to carry out systematic and in-depth education to prevent and reduce smoking among the university students.

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Treatment of anti-N-methyl-D-aspartate receptor encephalitis associated with ovarian teratoma

Yueping WANG ; Lei CAI ; Lan ZHU ; Lifei SHEN

Journal of Shanghai Jiaotong University(Medical Science).2017;37(2):270-272. doi:10.3969/j.issn.1674-8115.2017.02.029

The paper reported three young women who collapsed into sudden abnormal behavior and convulsions and fell into unconsciousness. After admission, they were found to suffer from ovarian teratomas with anti-NMDAR antibody positive in cerebrospinal fluid or serum. The patients were diagnosed as anti-NMDAR encephalitis associated with ovarian teratoma, and teratoma resection was performed.

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