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The clinical application of surgical robot was introduced historically, comprehensive description was executed on its research progress in foreign countries and China, planning and skill modeling, clinical application and development trend, and the clinical application of Da Vinci surgical system was described particularly. It's pointed out that universal surgical robot, autonomous surgical robot and micro/nano surgical robot would flourish in the future. Kinds of surgical robots applied clinically contributed to healthcare service greatly.
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Objective To master the present situation of medical equipment utilization by the nurse in some hospital and the knowledge requirements for medical equipment operation under doctor-nurse integration mode in order to complete the training system for medical equipment operation. Methods Totally 251 pieces of questionnaires were issued and collected on the knowledge requirements for medical equipment operation. Statistical analysis was executed on essential personnel information, common medical equipment, knowledge requirements for medical equipment operation, the mode of acquiring corresponding knowledge and etc. Results The personnel involved in the questionnaire was characterized by low age, short working lifetime, low educational level and etc; the common medical equipment included sphygmomanometer, monitor, infusion pump, injection pump and etc;the knowledge was required on complicated emergency treatment equipment such as ventilator and defibrillator; the mode for acquiring the knowledge included teaching by skilled teachers, training in the department, training by the factory engineer and studying the video or courseware on equipment operation. Conclusion It is a useful measure to improve the training effect and training level of the medical equipment by directed training and operating knowledge provided according to the current situation and requirement of the nurse using medical equipment under doctor-nurse integration mode.
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<p><b>OBJECTIVE</b>To investigate the regulatory effects of nerve growth factor (NGF) on basal and capsaicin-induced release of neuropeptide substance P (SP) in primary cultured embryonic rat dorsal root ganglion (DRG) neurons.</p><p><b>METHODS</b>DRGs were dissected from 15-day-old embryonic Wistar rats. DRG neurons were dissociated and cultured, and then exposed to different concentrations of NGF (10 ng/mL, 30 ng/mL, or 100 ng/mL) for 72 h. The neurons cultured in media without NGF served as control. RT-PCR were used for detecting the mRNAs of SP and vanilloid receptor 1 (VR1) in the DRG neurons. The SP basal and capsaicin (100 nmol/L)-induced release in the culture were measured by radioimmunoassay (RIA).</p><p><b>RESULTS</b>SP mRNA and VR1 mRNA expression increased in primary cultured DRG neurons in a dose-dependent manner of NGF. Both basal release and capsaicin-evoked release of SP increased in NGF-treated DRG neurons compared with in control group. The capsaicin-evoked release of SP also increased in a dose-dependent manner of NGF.</p><p><b>CONCLUSION</b>NGF may promote both basal release and capsaicin-evoked release of SP. NGF might increase the sensitivity of nociceptors by increasing the SP mRNA or VR1 mRNA.</p>
Subject(s)
Animals , Rats , Analgesics, Non-Narcotic , Pharmacology , Capsaicin , Pharmacology , Cells, Cultured , Dose-Response Relationship, Drug , Embryo, Mammalian , Ganglia, Spinal , Cell Biology , Gene Expression Regulation , Nerve Growth Factor , Pharmacology , Neurons , RNA, Messenger , Metabolism , Radioimmunoassay , Methods , Rats, Wistar , Substance P , Genetics , MetabolismABSTRACT
Objective To investigate the proliferation characteristics of fibroblast like synovial cells (FLS)in osteoarthritis in vitro and the mechanism of the immnnosuppressive effect of T-614 [N-(3-formy- lamino-4-oxo-6-phenoxy-4H-chromen-7-yl)methanesulfonamide ] on them.Methods FLS of OA and non- inflamed synovium(NS)were cultured and identified in vitro in the presence or absence of T-614.After incu- bation,the survival fraction(SF)of FLS was evaluated by MTT,cell cycle was observed using fluorescence - activated cell sorting(FCS)method and the expression of c-fos and COX-2 mRNA was examined by RT- PCR in FLS of OA patients.Results No statistically significant difference was noted between the OA and NS FLS in proliferation ability and cell cycle.High dose T-614 suppressed FLS SF obviously in OA and NS sta- tistically(P＜0.05),whereas the inhibition degree was not different between the two kinds of FLS.The agent induced cell apoptosis and reduced the accumulation of c-fos mRNA in OA-FLS at dose 1000 ml/L,prolonged G_1 term and shortened S term at dose 200 ml/L.The expression of COX-2 mRNA in OA FLS was suppressed obviously by T-614 at dose 1000 ml/L.Conclusion OA FLS do not display a distinct activated unlimited viability compared with NS cells,without stimulated by proinflammatory cytokine in vitro.High dose T-614 moderately inhibits the proliferation and differentiation of FLS,directly affects gene of the c-fos and COX-2 expression in OA,which may contribute to its immunosuppressive effect on OA'synovitis.
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Objective To investigate the proliferative characteristics of fibroblast-like synovial cells (FLS)in osteoarthritis in vitro and the mechanism of the immunosuppressive effect of total glucusides of paeony(TGP).Methods FLS of OA and non-inflamed synovium(NS)were cultured and identified in vitro in the presence or absence of TGP.After incubation,the survival fraction(SF)of FLS was evaluated by MTI' and the TNF-?,IFN-?and bFGF level in cultured FLS supernatant was measured by ELISA.The expression of FLS c-los mRNA and cell cycle of OA-FLS was observed by RT-PCR and flow eytometry respectively at the same time.Results No statistical significant differences were noted between the OA and NS FLS in pro- liferating double time.High doses of TGP suppressed FLS-SF more evidently in OA patients than in NS(P0.05).Conclusion High dose TGP can inhibit OA-FLS proliferation,modulate cy- tokine secretion and c-fos expression in OA.This suggests that TGP has immunosuppressive effect on OA syn- ovitis,probably by preventing the synovial hypertrophy in OA.
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Objective To identify serum biomarkers for rheumatoid arthritis(RA)by protein finger- print pattern. Methods One hundred and forty-one serum samples of 90 RA patients, 20 systemic lupus ery- thematosus(SLE)patients, and 31 healthy individuals were randomly divided into training set(n=93, 60 RA patients, 13 SLE patients and 20 healthy individuals)and test set(n=48, 30 RA patients, 7 SLE patients and 11 healthy individuals). They were detected by surface enhanced laser desorption/ionization-time of flight- mass spectrometry(SELDI-TOF-MS). The protein fingerprint pattern obtained from SELDI-TOF was trained by a multi-layer artificial neural network(ANN)to establish a diagnostic model. Results The detective mod- el obtained by ANN was used to detect the 48 unknown serum samples. The sensitivity and specificity for RA detection was 90% and 90.9% respectively. Conclusion In comparison with traditional methods, SELDI- TOF-MS could identify new serum biomarkers in RA. Combined with ANN, it provides high sensitivity and specificity for RA diagnosis.
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Objective To investigate the proliferation and differentiation characteristics of fibroblast like synovial cells(FLS)in rheumatoid arthritis(RA)in vitro and the mechanism of the immunosuppressive effect of differentiation inducers, such as all trans retinoid acid(ATRA), ealcitriol [1,25(OH)_2D_3] and dexamethasone(DEX). Methods FLS of knee synovial tissues from RA patients were cultured and identified in vitro in the presence or absence of ATRA, 1,25(OH)_2D_3 and DEX respectively. Synoviocyte proliferation in RA were measured by MTT colorimetrie assay and the survival fraction(SF)of FLS was evaluated. Cell cycle of FLS was observed using fluorescence-activated cell sorting(FCS)method in RA patients. Results The identified synovial cells in patients with RA were FLS(Vimentin and Fibronectin expression was positive), and hadn't been transformed or differentiated to adipocytes and osteoblasts with the three inducers. The SF of all RA-FLS interfered by ATRA, 1,25(OH)_2D_3 and DEX was much lower than that without drugs vehicle group in RA-FLS(P