This study introduced the producing theory and producing region of electroencephalogram(EEG)signal as well as containing physiological information and analyzed the purpose,method and procedure of EEG signal pattern recognition,as well as the latest development and related medical theory of EEG signal acquisition.The procedure of EEG signal pattern recognition consisted of information acquisition,preprocessmg,feature extraction and selection,classification estimation and recognition.By studying the association between EEG signal and prosthetic movement,it was concluded that EEG signal controlling prosthesis was feasible.Therefore,a prosthetic controlled system was designed based on EEG signal pattern recognition and acquisition.The system initiated from scalp electrode(or prosthetic electrode),passed through differential amplifier circuit(or prosthetic drive circuit),pre-amplifier circuit,trap circmt,med-amplifier circuit,and filter circuit,and finally reached analog-to-digital converter.It was proven to satisfy various

ObjectiveTo study the effect of allo-human bone marrow mesenchymal stemcells (bMSCs) on the secretion of interleukin(IL)-1, tumor necrosis factor(TNF)-α and transforming grouth factor (TGF)-β of patients with rheumatoid arthritis (RA) in vitro. MethodsBMSCs were isolated from bone marrow of healthy volunteers and purified by density gradient centrifugation and cultured in vitro. The mononuclear cells from the peripheral blood of patients with RA and healthy controls were isolated respectively.bMSCs and mononuclear cells were co-cultured in vitro and the density of IL-1, TNF-α and TGF-β3 in the co-culture system were detected by ELISA. ANOVA and Pearson correlation were used for statistical analysis.ResultsMononuclear cells from peripheral blood of patients with RA were co-cultured with bMSCs for seven days. There were an decreased density ofIL-1[(38.4±0.5) vs(6.2±1.0) ng/L], TNF-α[(29.4±1.3) vs (4.6±1.2) ng/L]and an increased density of TGF-β[(2.6±1.0) vs (22.5±2.2) ng/L]in the co-culture system (P＜0.05). But on the other hand, for healthy volunteers there were no significant change in the density of IL1[(4.4±1.1) ng/L]and TNF-α[(5.0±1.7) ng/L]in the coculture group, as compared with the mononuclear cell group[(4.4±1.3) vs(5.3±1.7) ng/L](P＞0.05). There was an increased density of TGF-β in the coculture system[(4.8±1.4) vs(10.5±1.2) ng/L](P＜0.05). IL-1 was positively correlated to TNF-αt (r=0.896,P=0.000), TNF-β1 was nagative correlation with 1L-1 and TNF-α (r=-0.356,P=0.019; r=-0.380,P=0.000).ConclusionHuman bone marrow MSCs have modulatory effects on main cytokines of patients with RA in vitro. bMSCs could down-regulate the levels of IL-1 and TNF, but up-regulate the density of TGF-β. These immune-modulatory effects are not MHC restricted. The results of this study have provided evidence for the development of effective therapy for RA.

Objective To study the expression of RhoA protein in colorectal carcinoma. Methods The expression of RhoA protein in 92 cases of colorectal ccarcinoma and 30 cases of normal rectal tissue was detected by SP immunohistochemical technique. Results RhoA protein were negative in 40 cases of normal colorectal tissue. In 92 cases of colorectal carcinoma, the positive rate of RhoA protein was 70.7%. It was significantly higher than that in the normal colorectal tissue. The positive rate of RhoA protein in high-differentiated 、moderate-differentiated and lowdifferentiated rectal carcinoma were 43.5% 、74.4% and 86.7% ,respectively(P ＜0.05). The positive rates of RhoA in phase Ⅰ、phase Ⅱ、phase Ⅲ and phase Ⅳ were 48.6% 、77.3% 、83.3% and 94.1%, respectively (P ＜ 0.05).The positive rate of RhoA protein in patients with lymphnode mestastasis and non-lymphnode mestastasis were 82% and 57.1% (P ＜ 0.05). Conclusion RhoA protein could be related with the differentiation、invasion、metastatsis and prognosis of colorectal carcinoma.

Objective To observe the incidence and transformation of pyuria and bacteriuria in different time point after TURP and supply the evidence for antibiotic application.Methods From March,2011 to May,2012,84 patients with BPH admitted in our hospital.Their ages ranged from 61 to 87 years old,mean (71.9±7.6) years.The volume of prostate in those patients ranged from 27.8 to 118 ml,mean (70.8±24.1) ml.The procedure of TURP was undergone in all of them.In one week after the operation,two urine specimens from each patient,one for urine routine examination and one for urine culture,were collected 24 h after the catheter have been withdrawn.The catheter was also cultured.During the following-up,urine routine examination and urine culture were regularly performed in 1,2,3 months after surgery.If the patient had both pyuria and bacteriuria,he should be excluded the study.Results The pyuria rate on one week,one month,two months and three months were 54.8％ (46/84),100.0％ (82/82),65.8％ (48/ 73),34.2％ (25/73),respectively.There is a significance difference among those groups (P＜0.05).It seemed that the pyuria would appear in all patients.However,the incidence would gradually decrease.It seemed that the pyuria has the tendency of self-recovery.A significant difference of prostatic resection volume after 3 months could be observed in the pyuria group (31.4±15.2 ml) and non-pyuria group (24.8±11.6 ml) (P＜0.05).The bacteriuria rate on one week,1,2,3 months were 7.1％ (6/84),11.0％ (9/82),6.8％ (5/73)and 0,respectively.There is no significance difference among the groups (P＞0.05).Conclusions Pyuria will appear after TURP and the incidence reduced gradually following the time.The pyuria alone without the bacteriuria may be explained by inflammation,that antibiotics were unnecessary.The bacteriuria alone without the pyuria may be considered as asymptomatic bacteriuria or bacterial colonization,antibiotics were unnecessary,either.

Objective To evaluate the significance to detect the Ryanodine receptor (RyR) antibody in the sera of myasthenia gravis (MG) patients.Methods Sarcoplasmic reticulum abound with RyR was extracted by centrifugation,and levels of antibodies in 66 MG patients with thymoma (MGT),98 non-thymoma MG (NTMG) patients,50 non-myasthenia gravis (NMG) patients and 123 normal persons were examined by ELISA-RyR method.Results RyR antibody positive rate of MGT was the highest among MGT,NTMG and NMG groups ( P 0.05).Ages,clinical scores and levels of acetycholine receptor antibodies of patients with RyR antibody positive sera were higher than those with RyR antibody negative sera ( P

Objective To observe the clinical, neuropathogical, neurophysiological characteristics of Charcot-Marie-Tooth disease, type 1A (CMT1A) which was similar to chronic inflammatory demyelinating polyradiculoneuropathy(CIDP).Methods The clinical data, neuroelectrophysiological changes and pathological features of sural nerve biopsy were taken from 2 CMT1A patients who were proven to be 17p12 duplication with CIDP features, and analyzed comprehensively. Results Two CMT1A cases with classical chronic course showed both subacute course and clinical manifestations similar to CIDP, however, the changes of neuroelectrophysiology and pathological characteristics of the nerve biopsy in 2 cases were different from CIDP in some way. We confirmed the chronic inflammatory demyelinating type of the CMT1A patients whom the immunotherapy was effective on.Conclusion The classical CMT1A 17p12 duplication patients who obtained immunotherapy effects might resemble CIDP both in clinical course and manifestation.

Animals ; Female ; Injections, Intraventricular ; Male ; Maze Learning ; drug effects ; Memory ; drug effects ; Mice ; Mice, Inbred Strains ; Toluene ; administration & dosage ; toxicity

Actinomycosis ; diagnosis ; pathology ; surgery ; Adult ; Female ; Humans ; Ovarian Diseases ; diagnosis ; pathology ; surgery

ObjectiveIn this paper a new application of LABVIEW in neural electrophysiological simulation was applied to simulate axonal excitability.MethodsA variety of axonal excitability of the squid giant axon was modeled with LABVIEW,including action potential threshold,refractoriness,temporal summation,anode break excitation,repetitive firing and conduction velocity.ResultsThe LABVIEW program accurately described the permeability changes of Na+ and K+ and their effects on the action potential,and the membrane excitability had been well predicted.ConclusionThe graphical programming language of LABVIEW allows the user to complete the programming by dragging and dropping icons and connecting wires,the users can quickly and easily construct their own biological research systems.

Objective To evaluate the efficiency of primary hepatic carcinoma(PHC)using tran- scatheter arterial chemoembolization(TALE)combining with MSC.Methods Treatment group(30 patients with unresectable PHC)adopt MSC after TALE,while control group(10 patients with unresectable PHC)only adopt TALE,then observing the curative effect and survival rate.Results One year after treating,the local effect was 90 %,60 %,1～2 year survival rate was 90 %,30 % respectively,median life span was 15 months. Conclusion To treat PHC with TALE combining with MSC is an effective and non-invasive method.