1.Correlation Study of the Fascin Expression and Prognosis in Breast Cancer
Xin WANG ; Yan XU ; Jichao TAN ; Ding SUN ; Huimian XU
Journal of China Medical University 2015;44(8):738-741,757
Objective To investigate the relationship between the expression of Fascin and breast cancer prognosis. Methods Paraffin sections of breast cancer from 110 patients were investigated by immunohostochemistry with monoclonal anti-fascin antibody. Data of the Fascin expression and clinicopathological variables were analyzed for disease-free survival(DFS)and overall survival(OS)by Kaplan-miere and cox model. Results The expression of Fascin was significantly associated with ER negative,PR negative and lymph node metastasis,but not with age,HER2 status and tumor size. The patients with positive expression of Fascin had shorter disease free survival time than those without Fascin expression. Conclusion High expression of Fascin is associated with poor prognosis in breast cancer. Fascin is an independent prognostic indicator of disease-free survival time.
2.Effects of vibration training in sitting posture on the lower extremity muscle strength, balance and walking abilities in older adults
Jingwang TAN ; Jichao WANG ; Xueping WU
Chinese Journal of Tissue Engineering Research 2019;23(15):2350-2355
BACKGROUND: In China, population aging makes pension become prominent, so different pension patterns haven been developed. However, the existing patterns pay bare attention to the physical exercise of the elderly, and the elderly need regular exercise to delay the aging and improve the quality of life. Vibration training is an exercise method that popularized in the past decade. It can effectively enhance the muscle strength and balance function of the elderly. Little is reported on sitting posture, and exploring the effect of vibration training in sitting position on the elderly provides reference for physical intervention of the elderly. OBJECTIVE: To explore the effect of 12-week vibration training in sitting posture on muscle strength of lower extremity, balance and walking ability of the elderly living in the day-care center. METHODS: Thirty-six elderly with an average age of 82.9 years were randomized into trial (n=20) and control (n=16) groups. The trial group underwent 12-week vibration training in sitting posture (amplitude: 3 mm; frequency: 3-13 Hz; 5 min/set, 1 minute in between; 2-4 sets/session; 3 times/week) by using vibration platform BODYGREEN. The control group received no vibration training in sitting posture with normal rest. Only investigators were blind to grouping. RESULTS AND CONCLUSION: Compared with the baseline, the five times sit to stand test, intensive Romberg test results, time up and go test results and 10-m walking test results showed no significant changes in the trial group. The deviation length, deviation area and Y-axis deviation of eyes open, and the deviation length and Y-axis deviation of eyes closed in Win-Pod balance test were significantly reduced (P < 0.05). The indexes showed no significant changes in the control group before and after training. The elderly had good adaptability to vibration training in sitting posture, with no dizziness or other adverse reactions. These results imply that 12-week vibration training in sitting posture is beneficial to overcome the deviation of the center of gravity in older adults. Nevertheless, the effect of improving muscle strength of lower extremity and walking ability is not obvious. Vibration training in sitting posture can be accepted by the elderly, which may be regarded as a way of daily exercising for older adults.
3.A real-time qPCR method to identify diatom UPA gene for the drowning diagnosis
Xiangdong LIU ; Chao LIU ; Quyi XU ; Fan PENG ; Sunlin HU ; Baishen MAI ; Hong LIU ; Yue LI ; Huiying HU ; Jichao XU ; Shurui ZHANG ; Yali HAN ; Zhujun TAN
Chinese Journal of Forensic Medicine 2018;33(2):124-129
Objective To establish a Real-time quantitative PCR method (qPCR) for the detection of diatom UPA barcoding genes and evaluate its application in the drowning diagnosis. Methods The homologous sequences of diatoms UPA gene was obtained by Blast from GeneBank, based on which the universal primers for diatoms were designed. DNA were extracted from 2 common human symbiotic bacteria (Escherichia coli, Bifidobacterium longum), 3 species of planktonic bacteria, 15 species of planktonic algae, tissue samples (lung, liver and kidney) from human cadavers (28 drowning victims, 1 victims by non-drowning in the water, 3 victims deaths on land) in 32 cases. The specificity, sensitivity and repeatability of the designed primers were tested. The positive rates of diatoms detection in the drowning cases were calculated. The results of the real-time quantitative method were evaluated comparatively by Microwave Digestion-Vacuum Filtration-Automated Scanning Electron Microscopy (MD-VF-Auto SEM) and PCR-Capillary Electrophoresis (PCR-CE). Results The results showed that the primers UPA99 had strong specificity for the diatomaceae (Synedra radians, Navicula sp., Melosira varians, Cyclotella sp. and Nitzschia sp.) DNA. The melting curve of the amplified product was smooth; the peak was narrow; the melting temperature was (87±1)℃. The sensitivity of qPCR method was 1.56×10-5ng/μL with the detection range of 1.56×102ng/mL~1.56×10-5ng/μL, in contrast with the PCR-CE method (1.56×10-3ng/μL). This real-time PCR method showed high repeatability and stability with the coefficient of variation less than 2%. The detection rate of lung, liver and kidney was 89.3%, 71.4% and 64.3% respectively. Conclusion The established qPCR method, based on the universal primers designed for diatom UPA gene, has high specificity, high sensitivity and good repeatability. With a promising prospect for application, qPCR is suitable for drowning diagnosis.