1.Subject service in Medical Library of Chinese PLA:Its 3-year practical experiences and prospect
Ting Lü ; Fangwei LI ; Xiaoru YANG ; Jin CHENG ; Xiaoyan ZHANG ; Liang YIN ; Zhibin YANG
Chinese Journal of Medical Library and Information Science 2014;(1):38-41,68
The practical experiences with subject service in Medical Library of Chinese PLA were summarized in terms of the establishment of user information records, accumulation and summation of information, and construc-tion of information platform. Suggestions were put forward for the improvement of subject service in Medical Library of Chinese PLA, such as holding the big information concept in the big data era, using the biomedical data as the target of study, providing various kinds of service, integrating seamless, dynamic and interactive library service into user service. The fact that focus on artificial intelligence, computer, information and coomunication technologies is one of the future directions was pointed out.
2.Effect of pH value and fluoride ions on corrosion resistance of pure Ti and Ni-Cr-Ti alloy in artificial saliva.
Bo-gui LIANG ; Xiao-ting SHEN ; Li LIU ; Yin-xiang LÜ ; Zi-dong YU ; Cheng-xin YANG ; Yan-zhen ZHANG
Journal of Zhejiang University. Medical sciences 2010;39(4):399-403
OBJECTIVETo investigate the effect of pH value and fluoride ions on the corrosion resistance of pure Ti and Ni-Cr-Ti alloy in the artificial saliva.
METHODSElectrochemical technique was used to measure the electric potential of corrosion (Ecorr), current density of corrosion (Icorr) and polarization resistance (Rp) of pure titanium and Ti-Ni-Cr alloy in the artificial saliva with different pH value and fluoride concentrations. After electrochemical analysis, microstructure and phase diffraction were examined by FSEM.
RESULTSWith the lower pH value, the Ecorr and Icorr of pure titanium and Ti-Ni-Cr alloy increased, the Rp decreased, there was a significant difference (P<0.05). The Ecorr and Icorr increased markedly, the Rp significantly reduced in the artificial saliva containing 0.2% NaF (P<0.01). FSEM showed that pure titanium and Ti-Ni-Cr alloy surface corrosion, pure titanium in the artificial saliva containing 0.2% NaF was most serious.
CONCLUSIONLower pH value decreases the corrosion resistance of pure titanium and Ti-Ni-Cr alloy and the artificial saliva containing fluoride ions decreases the corrosion resistance of pure titanium.
Chromium Alloys ; chemistry ; Corrosion ; Dental Alloys ; chemistry ; Electrochemistry ; Fluorides ; chemistry ; Hydrogen-Ion Concentration ; Materials Testing ; Metal Ceramic Alloys ; chemistry ; Nickel ; chemistry ; Saliva, Artificial ; chemistry ; Surface Properties ; Titanium ; chemistry
3.Preparation and Preclinical Study of 99mTc-labeled Prostate Cancer Aptamer
Ting YANG ; Ju JIAO ; ting Yin LÜ ; Qiong ZOU ; e Su CAO ; qin Shu JIANG ; Yong ZHANG
Journal of Sun Yat-sen University(Medical Sciences) 2017;38(6):848-853
[Objective]To radiolabel the PSMA aptamer A10-3.2 with 99mTc , and explore its biological characteristics in vivo and in vitro.[Methods]Using Succinimidyl 6-hydrazinonicotinate hydrochloride (SHNH) as the bifunctional chelating agent to label aptamer A10-3.2 with 99mTc, then tested for the stability in vitro, the specific uptake by prostate cancer LNCaP cells (PSMA+) , the characteristics of SPECT/CT imaging and biodistribution in LNCaP tumor-bearing NOD/SCID mice.[Results]The labeling rate and radiochemical purity of the products (99mTc-SHNH-A10-3.2) are(71.31 ± 6.78)% and 97.03%,respectively. 99mTc-SHNH-A10-3.2 had obvious target specificity for PSMA positive prostate cancer LNCaP cells, its uptake rate was significantly higher than PSMA nega?tive PC-3 cells (P<0.01). And in tumor-bearing mice, the tumor has a certain uptake and a high ratio of the tumor tissue to the mus?cle.[Conclusion]This study successfully constructed 99mTc-labeled PSMA-targeted aptamer A10-3.2, which has a good stability and targeting in vivo and in vitro, has a high tumor tissue/muscle ratio in tumor-bearing mice, which show that it may be a potential target?ed molecular imaging agent for prostate cancer.
4.Role of MR imaging on the diagnosis of velopharyngeal insufficiency preoperatively.
Chen-Yu HUANG ; Ting CHENG ; Wei LÜ ; Bin XIONG ; Min ZHAO ; Ning-bei YIN ; Zhen-min ZHAO
Chinese Journal of Plastic Surgery 2007;23(1):19-22
OBJECTIVETo assess the feasibility and actuality of MR imaging on diagnosis and evaluation of velopharyngeal insufficiency preoperatively.
METHODSSince 2002, six patients with velopharyngeal insufficiency were examined with MRI using midsagittal, coronal, and axial images, contrast with radiography, to affirm configuration and movements of soft palate, posterior and lateral pharyngeal walls, and velopharyngeal opening for the choices of following surgeries.
RESULTSMRI visualizes directly and measures objectively the shorter soft palate, confined movements of soft palate, lateral or/and posterior pharyngeal wall, and deeper and enlarged velopharyngeal opening, which were coincided with clinical symptoms and affirmed by observations in the following operations, surpassing radiography.
CONCLUSIONSMRI is effective, actual, and uninvasive in imaging and measuring the velopharyngeal insufficiency, thus has a potential role in investigation and planning surgical repairs.
Adolescent ; Adult ; Child ; Female ; Humans ; Magnetic Resonance Imaging ; Male ; Velopharyngeal Insufficiency ; diagnosis ; surgery ; Young Adult
5.Effect of Intensive Core Muscles Training on General Function in Patients after Hip Arthroplasty
Ting ZHANG ; Qi XIE ; Jian WANG ; ping Shu ZHANG ; qing Yu WANG ; li Li SHEN ; Juan LIU ; Ying ZHANG ; yu Xiao LÜ ; Hong QING-SHUI ; XIA YIN
Chinese Journal of Rehabilitation Theory and Practice 2017;23(10):1171-1175
Objective To observe the effect of the intensive training of core stabilization on the general function of patients with femoral neck fractures in old patients after hip arthroplasty. Methods From January, 2011 to December, 2012, 60 old patients accepted hip arthroplas-ty for femoral neck fractures were randomly divided into control group (n=30) and observation group (n=30). The control group received routine rehabilitation training 50 minutes each time, and the observation group received intensive training of core muscles 20 minutes each time based on the routine rehabilitation training 30 minutes each time, twice a day, five days a week for two weeks. Both groups were evalu-ated with Harris Hip Score (HHS), Charnley Hip Score (CHS) and modified Barthel Index (MBI) before training and one week, two weeks and three months after training. Results There was no significant difference in the scores of HHS, CHS and MBI before and one week after training (P>0.05). All the scores increased with time in both groups (F>248.165, P<0.001). The scores of HHS, CHS and MBI were signifi-cantly higher in the observation group than in the control group two weeks and three months after training (t>3.211, P<0.001). Conclusion Early intensive training of core stabilization may facilitate to recover hip function and activity of daily living in old patients after hip arthro-plasty.