1.Preliminary screening of prognosis-related genes in gastric cancer based on TCGA database
Xianping ZHANG ; Ying LI ; Caijia YUAN ; Chunling CHEN ; Xianyong JIANG ; Yong XIA
Chinese Journal of Clinical Laboratory Science 2019;37(5):396-400
Objective:
To search new prognosis-related genes in gastric cancer by analyzing the high-throughput sequencing data of gastric cancer in TCGA database, and then provide data support for future studies.
Methods:
The RNA-seq expression matrix data and patient-related clinical data from 375 gastric cancer tissues and 45 adjacent noncancerous tissues were downloaded from the TCGA database. The data were collated and standardized based on the R language. The difference of gene expression was analyzed by the edgeR and DEseq software packages. The survival analysis of obtained differential genes was performed by the univariate and multivariate COX regressions combined with clinical data of patients, and then the genes with clinical significance were screened out.
Results:
A total of 364 differential genes were obtained by the edgeR and DEseq analysis. Subsequently, the functional enrichment analysis found that these genes were mainly involved in protein digestion and absorption, cytochrome P450 system of drug and exogenous substance metabolism, chemical carcinogenesis, gastric acid secretion and so on. The univariate COX regression analysis showed that FAP, FAT3, PDK4 and ZNF365 genes had significant influences on the prognosis of gastric cancer patients. The multivariate COX stepwise regression analysis showed that the risk model constructed by FAP and PDK4 could predict the prognosis of gastric cancer patients.
Conclusion:
FAP, FAT3, PDK4 and ZNF365 genes may be the prognostic markers of gastric cancer, which may provide data supports for future clinical and basic studies.
2.Establishment and biological characterization of radiation-resistant lung carcinoma cell lines
Xiangnan QIU ; Wei ZHANG ; Hao LI ; Zhaohui QIN ; Xia WANG ; Longzhen ZHANG ; Yuanhu YAO
Chinese Journal of Radiation Oncology 2015;(6):703-707
Objective To establish radiation?resistant lung carcinoma cell lines, and to investigate the changes in morphology, apoptosis, invasive migration, and epithelial?mesenchymal transition ( EMT) in cells. Methods The radiation?resistant lung carcinoma cell lines were obtained by exposure of lung carcinoma cell lines, A549 and H1299, to radiation with a low dose in fractions, a sublethal dose, or a gradually increasing dose. The morphological changes in cells, radiosensitivity, survival rates after exposure, apoptosis rates, changes in invasive migration, and expression of EMT marker proteins were evaluated using microscopy, colony formation assay, CCK?8 assay, flow cytometry, transwell migration assay, and Western blot, respectively. Results Radiation with a gradually increasing dose successfully induced the radiation?resistant cell lines, A549R and H1299R. The morphological study showed that the morphology of radiation?resistant cells was converted to the morphology of mesenchymal cells. Compared with A549 and H1299 cells, the values of D0 , Dq , and SF2 were significantly increased in A549R ( P=0.017,P=0.001,P=0.000) and H1299R (P=0.033,P=0.000,P=0.008) cells, respectively;the values of α and α/β were significantly reduced in A549R (P=0.018;P=0.007) and H1299R (P=0.001;P=0.009) cells, respectively. The survival rates in A549R and H1299R cells after exposure to radiation with various doses were significantly higher than those in the control groups (all P<0.05). After exposure, the apoptosis rates were significantly reduced in A549R and H1299R cells ( P=0.02,P=0.01);the invasion and migration rates were significantly increased in A549R (P=0.000;P=0.001) and H1299R (P=0.001,P=0.002) cells;the expression of E?cadherin was significantly down?regulated in A549R and H1299R cells (P=0.00,P=0.01), while the expression of vimentin was significantly elevated in A549R and H1299R cells ( P= 0. 02, P= 0. 01 ) . Conclusions The radiation?resistant lung carcinoma cell lines are successfully established. Both cell lines show enhanced invasion and migration, which may be associated with EMT.
3.Application of the interaction teaching mode integrated with virtual anatomy platform in teaching .
Jing CHEN ; Li XIAO ; Li-Ping HU ; Xia CAO ; Shu-Zhen LI ; Ju-Ying XIE
Chinese Acupuncture & Moxibustion 2019;39(11):1235-1238
OBJECTIVE:
To observe the effect of the interaction teaching mode integrated with Visible Body virtual anatomy platform in teaching .
METHODS:
A total of 60 students in the class of 2017 in the discipline of acupuncture-moxibustion and , Xiangnan University were recruited and randomized into an observation group and a control group, 30 students in each one. In the control group, the traditional practical teaching mode was used. In the observation group, the interaction teaching mode integrated with virtual anatomy platform was adopted. The teaching duration was 10 class hours in both groups. After accomplishing the teaching schedule, the practical examination was conducted in the localization of commonly-used acupoints, very useful acupoints and the dangerous acupoints as well as acupuncture manipulation techniques. Moreover, the degree of satisfaction was investigated among the students in the two groups and the self-learning ability was evaluated in 3-month follow-up visit.
RESULTS:
In the observation group, the scores for the localization and acupuncture manipulation of commonly-used acupoints, very useful acupoints and the dangerous acupoints, as well as the degree of satisfaction of the 3 items, i.e. interesting, interaction and leaning-assistance were all higher than those in the control group (<0.05). The degree of satisfaction in the acceptance and leaning-participation, as well as the scores of self-learning ability in 3-month follow-up visit were not different statistically between the two groups (>0.05).
CONCLUSION
The interaction teaching mode integrated with virtual anatomy platform improves the effect on teaching and achieves the high student satisfaction.
Acupuncture
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education
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Acupuncture Points
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Acupuncture Therapy
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Humans
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Meridians
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Moxibustion
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Teaching
4.Construction of the Chinese Veteran Clinical Research (CVCR) platform for the assessment of non-communicable diseases.
Jiping TAN ; Nan LI ; Jing GAO ; Yuhe GUO ; Wei HU ; Jinsheng YANG ; Baocheng YU ; Jianmin YU ; Wei DU ; Wenjun ZHANG ; Lianqi CUI ; Qingsong WANG ; Xiangnan XIA ; Jianjun LI ; Peiyi ZHOU ; Baohe ZHANG ; Zhiying LIU ; Shaogang ZHANG ; Lanying SUN ; Nan LIU ; Ruixiang DENG ; Wenguang DAI ; Fang YI ; Wenjun CHEN ; Yongqing ZHANG ; Shenwu XUE ; Bo CUI ; Yiming ZHAO ; Luning WANG
Chinese Medical Journal 2014;127(3):448-456
BACKGROUNDBased on the excellent medical care and management system for Chinese veterans, as well as the detailed medical documentation available, we aim to construct a Chinese Veteran Clinical Research (CVCR) platform on non-communicable diseases (NCDs) and carry out studies of the primary disabling NCDs.
METHODSThe Geriatric Neurology Department of Chinese People's Liberation Army General Hospital and veterans' hospitals serve as the leading and participating units in the platform construction. The fundamental constituents of the platform are veteran communities. Stratified typical cluster sampling is adopted to recruit veteran communities. A cross-sectional study of mental, neurological, and substance use (MNS) disorders are performed in two stages using screening scale such as the Mini-Mental State Examination and Montreal cognitive assessment, followed by systematic neuropsychological assessments to make clinical diagnoses, evaluated disease awareness and care situation.
RESULTSA total of 9 676 among 277 veteran communities from 18 cities are recruited into this platform, yielding a response rate of 83.86%. 8 812 subjects complete the MNS subproject screening and total response rate is 91.70%. The average participant age is (82.01±4.61) years, 69.47% of veterans are 80 years or older. Most participants are male (94.01%), 83.36% of subjects have at least a junior high school degree. The overall health status of veterans is good and stable. The most common NCD are cardiovascular disorders (86.44%), urinary and genital diseases (73.14%), eye and ear problems (66.25%), endocrine (56.56%) and neuro-psychiatric disturbances (50.78%).
CONCLUSIONWe first construct a veterans' comprehensive clinical research platform for the study of NCDs that is primarily composed of highly educated Chinese males of advanced age and utilize this platform to complete a cross-sectional national investigation of MNS disorders among veterans. The good and stable health condition of the veterans could facilitate the long-term follow-up studies of NCDs and provide prospective data to the prevention and management of NCDs.
Aged ; Aged, 80 and over ; Asian Continental Ancestry Group ; Cross-Sectional Studies ; Disease ; Female ; Health Status ; Humans ; Male ; Veterans ; statistics & numerical data