2.Risk and Risk Control of Strain Medical Equipments
Zhirong XU ; Ting XU ; Shubo YANG
Chinese Medical Equipment Journal 2003;0(11):-
Pressure vessel is used in medical organization as a kind of special medical equipment. It's easy to cause injury when improperly used. By analyzing technical performance, product security, accident threat that weakness element of MTF is pointed out and some suggestions of prevention accidents are produced.
3.Progress on Ultrasound-guided Thoracic Paravertebral Block
Chinese Journal of Minimally Invasive Surgery 2016;16(4):359-361,384
[Summary] Thoracic paravertebral block ( TPVB) can offer intra-postoperative analgesia for thoracic , cardiac, and breast operations .In recent years , the development of ultrasonic technology provides a platform for real-time and visual never block , which can further improve the success rate and reduce the incidence of complications .In this article, we reviewed the various approaches of ultrasound guidance for thoracic paravertebral blockade , and explored the latest progress of different technologies .
4.Analysis of therapeutic effect of Oza Grey Na (continuous micro pump infusion) on cerebral infarction
Xuyi YANG ; Renjun XU ; Ting WANG
Chinese Journal of Biochemical Pharmaceutics 2017;37(9):258-259
Objective To study and analyze the therapeutic effect of Oza Grey Na (continuous micro pump infusion) on cerebral infarction. Methods 100 patients with cerebral infarction treated in our hospital from February 2015 to August 2016 were selected and randomly divided into the control group and the experimental group, with 50 patients in each group. The patients in the control group received routine treatment, while the experimental group received Oza Grey Na (continuous micro pump) treatment, intravenous drip, 1 courses for 2 weeks. The liver and kidney function, coagulation function, blood routine and other indexes of the patients in the experimental group and the control group were examined before and after treatment, and the therapeutic effects of the two groups were compared and analyzed. Results After treatment, 50 patients in the experimental group were invalid, 3 cases were effective, 20 cases were markedly effective, and the total effective number was 47 cases in 27 cases. Patients in the control group, 8 patients were invalid, 18 patients were effective, 24 patients were markedly effective, and the total effective number was 42 cases. The effective rate of the treatment group was 94%, and the effective rate of the control group was 84%, which was lower than that of the experimental group (P<0.05). There were no severe complications in the experimental group and the control group, and there was no significant difference in the incidence of complications between the 2 groups, and there was no statistical significance. Conclusion Oza Grey Na (continuous micro pump) treatment of cerebral infarction clinical effect is better, more efficient, with further clinical promotion and application of significance.
5.A Penicillium sp. XGH2321 Isolated from the Rhizospheric Soil of Rhizophora stylosa Griff and Its Antibacterial Activity
Ting-Ting XU ; Yin WU ; Yang-Yang JIA ; Bing LIU ; Bo-Ping YE ;
Microbiology 2008;0(11):-
The isolate XGH2321,which isolated from the rhizospheric soil of Rhizophora stylosa Griff in Dongzhaigang Mangrove Nature Reserve in China,was identified as a fungus in the genera of Penicillium based on its morphological characteristics and internal transcribed spacer(ITS) sequence analysis.After in-oculated in the modified CzapeK-DoX medium(consisted of 4% corn steep,0.3% NaNO3,0.05% KCl,0.1% K2HPO4,0.05% MgSO4,pH 7.4,9% salinity),and cultured under the condition of 28?C in a rotary shaker at 160 r/min for 7 days,the extracts of ethyl acetate and water-soluble from the fermentation broth showed the apparent antibacterial activities against the growth of Staphylococcus aureus,Sarcina lutea,and Bacillus subtilis with the minimum inhibitory concentration(MIC) of 800 ?g/mL and 400 ?g/mL,respectively.While at the same time,these two extracts could also suppress the growth of the plant pathogen,Rhizoctonia solani with MIC of 400 ?g/mL and 200 ?g/mL,respectively.
7.Underlying mechanism of chemokine receptor CCR2 antagonist in the treatment of bone cancer pain
Zhenhua XU ; Jianping YANG ; Jihua HU ; Ting CHEN ; Jianling ZUO
Chinese Pharmacological Bulletin 2014;(4):510-513
Aim To investigate the effect of intrathecal injection of CCR2 antagonist on pain behaviours,spinal astrocytes activation in the spinal cord in a rat model of bone cancer pain. Methods Forty female SD rats weighing 150 ~180 g were randomly divided into five groups ( n=8 each ):(Ⅰ) sham group;(Ⅱ) sham +RS102895 group;(Ⅲ) bone cancer pain group;(Ⅳ) bone cancer pain + DMSO group;(Ⅴ) bone cancer pain+RS102895 group. Rats received i. t. injections of either RS102895 (3 g·L-1 ) 10 μl or 10%DMSO 10 μl at the time of 10-12 days after the operation. Bone cancer was induced by intra-tibial inoculation of 1 × 105 Walker 256 breast cancer cell. Mechanical hind paw withdrawal threshold test was performed one day before and at 3rd,6th,9th, 10th,11th and 12th days after surgery. Immunofluorescence was used to observe the activation of the spinal astrocytes. Results Compared with group Ⅰ, the rats in bone cancer pain group appeared obvious mechanical hyperalgesia (Ⅲ、Ⅳ、Ⅴ) ,the volume,shape and mean optical den-sity ( MOD) of spinal astrocytes could be seen obvious-ly increased,groupⅡhad no obvious statistical signifi-cance (P>0. 05). Compared with group Ⅳ ,i. t. in-jections of RS102895 increased the paw mechanical withdrawal threshold, suppressed the action of astro-cytes,reduced the MOD of spinal astrocytes. Conclu-sion CCR2 might participate in the formation of bone cancer pain via activating spinal astrocytes. CCR2 will be a potential target for the treatment of bone cancer pain.
8.The effects of low intensity pulsed ultrasound on the proliferation and osteogenic differentiation of rat adipose tissue-derived stem cells
Ting JIANG ; Fengjing GUO ; Tao XU ; Keqing YANG
Chinese Journal of Physical Medicine and Rehabilitation 2011;33(6):408-412
Objective To investigate the biological effects of low intensity pulsed ultrasound (LIPUS) on the proliferation and osteogenic differentiation of adipose tissue-derived stem cells (ADSCs) in vitro.Methods Primary ADSCs were harvested from the inguinal fat pads of 4-week-old female Sprague-Dawley rats,cultured in vitro and purified by magnetic-activated cell sorting.Surface ADSC markers were identified by flow cytometry.LIPUS at 100 mW/cm2 was used to stimulate the cultured cells.Flow cytometry was performed for cell cycle analysis.Cellular proliferation was evaluated via CCK8 chromatometry,and a proliferation index was calculated.ADSCs were assigned to 4 groups:a negative control group,a LIPUS group,an osteoinduction group and a LIPUS plus osteoinduction group,and treated accordingly.Alkaline phosphatase (ALP) activity was determined at the 7th and 14th day in each group,and calcium nodes were marked by Von Kossa staining.The levels of osteogenic differentiation in the different groups were evaluated.Results The ADSCs of passage 3 expressed CD 34low,and CD29high CD44high,which was consistent with the characteristics of ADSC surface markers.Proliferation was upregulated significantly in the LIPUS group compared with the negative control group.ALP activity was also elevated significantly and it resulted in mine-ralization.The highest mineralization rate was observed in the LIPUS plus osteoinduction group.Conclusions LIPUS not only can stimulate the proliferation of rat ADSCs,it also promotes their osteogenic differentiation.
9.Distribution and drug resistance of pathogens in 132 cases of neonatal sepsis
Ting CHEN ; Qin LU ; Li YANG ; Wenjun XU ; Mingxia SHI
Journal of Clinical Pediatrics 2014;(3):220-223
Objective To investigate the distribution and antibiotic resistance of isolated pathogens in neonatal sepsis. Methods The results of blood culture and drug susceptibility test in neonates sepsis from January 2012 to June 2013 were retro-spectively analyzed. Results One hundred and thirty-two strains were detected in the blood samples, with 100(75.76%)Gram-positive bacteria, 30 (22.73%) Gram-negative bacteria and 2 (1.52%) fungus. Staphylococcus epidermidis, Escherichia coli and Staphylococcus aureus were the three most common pathogens. Gram-positive cocci was strongly resistant to penicillin (100.00%), erythromycin, selectrin and ampicillin/sulbactam (62.50%-100.00%), but still sensitive to vancomycin and teico-planin. The resistance rate of Gram-negative bacilli to ampicillin was 100.00%, and the resistance rate to cefatriaxone, selectrin and cefuroxime was 61.54%-100.00%. The resistance rate to imipenem and piperacillin/tazobactam was lower. Conclusions The selection of sensitive antibiotics should be based on the pathogens and drug resistance testing for the treatment of neonatal sepsis.
10.Analysis of clinical application of coronary artery imaging with 64-slice spiral CT
Biao JIANG ; Eryi XU ; Yongping YANG ; Ting MAO ; Haijun CHENG
Chinese Journal of Primary Medicine and Pharmacy 2010;17(22):3046-3047
Objective To explore clinical application of coronary artery imaging with 64-slice spiral CT.Methods 46 patients with coronary heart disease were undergone both coronary artery imaging with 64-slice spiral CT and coronary angiography,and the effects on coronary display respectively were compared Results Coronary display in coronary artery imaging with 64-slice spiral CT was better than that of the coronary angiography, which was a inspection pattern of noninvasive coronary display. Conclusion Coronary artery imaging with 64-slice spiral CT can accurately evaluate coronary artery stenosis, which was worth to application.