ObjectiveTo study the effect of platelet aggregation rate (PAR) level on the prognosis of percutaneous transluminal coronary angioplasty (PCI).MethodsFour hundred and one patients who performed PCI were divided into 4 groups:group 1 (PAR≤30％,103 cases),group 2 (PAR 31％ - 40％,102 cases),group 3 (PAR 41％ - 49％,103 cases ) and group 4 (PAR ＞ 49％,93 cases ).All the patients were followed up.The survival analysis was performed in 4 groups.ResultsThe data of survival table were tested by 3 methods among 4 groups:statistic was 0.612,degree of freedom was 3,P =0.894 in Log-rank (Mantel-Cox) test,statistic was 0.567,degree 9f freedom was 3,P =0.904 in Wilcoxon test and statistic was 0.586,P =0.900 in Tarone-Ware test.There was no significant difference among them.The mean follow-up duration was 2.2 years,and there was no significant difference in survival function among 4 groups (P ＞0.05).ConclusionPreoperative and postoperative measurement of PAR levels may not improve the prognosis.

Objective To study the the feasibility of real-time 3D transesophageal echocardiography (RT-3D TEE) to measure the distance between the coronary ostial and the junction of left ventricle and artery.Methods The RT-3D TEE image of the aortic root was collected intraoperative in 65 cases who were refered to our center for valve replacement.The reconstruction of the aortic annulus was done in the QLAB quantitative analysis software and the height parameter of the annulus could be generated.Meanwhile the coronary artery position was observed and the distance between the coronary ostial and the junction of left ventricle and artery was measured respectively.Results In the 65 cases,49 cases clearly showed bilateral coronary ostial,three cases only showed the left coronary ostial,six cases only showed the right coronary ostial,seven cases of both sides of the coronary ostial were unclear.The shows rate of right coronary ostial was 84.61％ (55/65),with the left coronary ostial 81.54％ (52/65).The measured value of the L-AA in systole and diastole were (15.5 ± 1.9)mm,(12.8 ± 1.5)mm,the R-AA systole and diastole measured values were (13.7 ± 1.8)mm,(12.4 ± 1.7)mm,respectively,there was significant difference between systole and diastole respectively.The aortic annulus height (H) got by 3D reconstruction of the aortic annulus was lower than ventricular-arterial junction to the coronary artery distance in both systole and diastole.Conclusions Not only can RT-3D TEE reconstruct the annulus,but also can show and measure the distance between the coronary ostial and the junction of left ventricle and artery respectively.

A.niger M1, the initial strain, was treated by UV and a mutant with 30% higher xylanase activity was obtained. Zymogram for detecting xylanase showed there are three different xylanases in the mutant mature culture, while two xylanases in initial strain. After orthogonal experiment, the optimum fermentation conditions of the mutant were obtained as follows: concentration of the major carbon resource 4 %, ratio between bran and corncob 5:5, concentration of glucose 0.1%, concentration of ammonium oxalate as supplemental nitrogen resource 2.0%, the initial pH of liquid medium 5.0, 100mL/250mL flask.

The UHPLC-LTQ-Orbitrap high resolution mass spectrometer was used to explore the chemical compositions in safflower. The rapid separation of the compositions was conducted by the UHPLC, following by high resolution full scan and MS2 scan, under the positive and negative ion mode. The chemical formula of compositions were deduced by full scan data in less than 5, then the potential structures were confirmed by the MS2 data. Forty-nine compounds were detected, of which 26 was identified, and 5 compounds was validated by the standard substances.
Carthamus tinctorius ; chemistry ; Chromatography, High Pressure Liquid ; methods ; Drugs, Chinese Herbal ; chemistry ; isolation & purification ; Molecular Structure ; Tandem Mass Spectrometry ; methods

BACKGROUND: Diabetes mellitus is a chronic metabolic disease caused by various factors,such as environmental factor,inherited factor,etc.,and its cause isn't very clear now. This study aims to investigate the risk factors mentioned above in the onset of diabetes mellitus, and is of significance in the first and second grade of prevention of diabetes mellitus.OBJECTIVE: To investigate the risk factors of type 2 diabetes mellitus to provide evidence for the proper intervention of it.DESIGN: Cross-sectional study based on diagnosis.SETTING: Department of epidemiology in a university and department of endocrinology in a university hospital.PARTICIPANTS: The subjects were residents who have resided in town and country of Dalian for more than 5 years and were elder than 40 years old. The method of stratified cluster random sampling was carried out among natural persons who were divided into two groups according to city and country. Totally 2 500 persons were taken in total and 1 250 persons were from each group. The subjects who had been diagnosed as diabetes mellitus were included.METHODS: Questionnaire survey was employed for all the subjects, including physical examinations such as height,weight,waist girth,hip girth,blood pressure,blood glucose,etc. Patients of type 2 diabetes mellitus were taken as the case group and the normal was as the control group. The unconditional univariate and multivariate logistic regression were used.MAIN OUTCOME MEASURES: Unconditional logistic regression analysis of risk factors of type 2 diabetes mellitus with single factor analysis and multivariate analysis.RESULTS: Family history of diabetes mellitus(OR = 2.339),obesity[body mass index(BMI),OR = 1.462],systolic pressure(OR = 1.016),hyperlipidemia(OR = 1.615), age(OR = 1.043) were the major risk factors for type 2 diabetes mellitus.CONCLUSION: Family history of diabetes mellitus, increase of systolic pressure,obesity,high blood lipid and age are the risk factor for type 2 diabetes mellitus. For all communities,control of body mass and high blood pressure is an important way to prevent type 2 diabetes mellitus.

Objective To understand the morbidity of human brucellosis in Wulanchabu City of Inner Mongolia in order to provide a basis for development of prevention and control measures.Methods According to the requirements in Baseline Survey Programme of Human Brucellosis in Inner Mongolia Autonomous Regionbetween November and December in 2010,stratified cluster sampling method was used to selected three townships according to the conditions of brucellosis(mild,moderate and serious) in 11 flags(cities,counties,districts) of the city.Three villages were extracted from each township.There were at least 200 persons aged 10 and older were investigated in every township.At least 600 people were investigated in every flag(city,county,district).Respondents were investigated about their awareness rate of basic knowledge about brucellosis,risk factors and common sense of prevention and treatment of the disease by using health education questionnaire.Based on the principle of informed consent,we collected respondents venous blood for preliminary screening using Hu red tablets.Brucellosis was confirmed with standard tube agglutination test and positive result was confirmed if 1:100 antibody concentration was two + or more.Prevalence,false negative rate as well as different age,gender,occupational incidence was calculated based on the network reported results of brucellosis in 33 townships of Wulanchabu in 2010.Results We distributed 6998 questionnaires and 6763 questionnaires were effective.The witting rate of basic knowledge about brucellosis was 57.99％(15 687/27 052); the witting rate of risk factors about brucellosis was 44.33％ (29 978/67 630); the witting rate for prevention and control of brucellosis was 41.66％(28 176/67 630),and total witting rate was 45.49％(73 841/162 312).The morbidity of brucellosis in Wulanchabu City was 91.39/10 000 (785/85 894) in 2010.Five hundred and ninety-one were serologically positive and the infection rate was 8.48％ (591/69 972).Nine hundred and three cases of patients were diagnosed with brucellosis and the prevalence rate of brucellosis was 105.13/10 000 (903/85 894).Missing report 377 cases,and the false negative rate was 48.03％ (377/785) in 2010.Men infection rate was 71.07％(420/3755) and women infection rate was 28.93％(171/3217).The infection rate[97.63％(577/591)] of people aged 31 and older was significantly higher than that [2.37％(14/591)] of the people aged 30 and younger.Infection rate of people engaged in aquaculture was 8.61％ (582/669).The infection rate of people working in livestock processing industry was 2.91％ (2/103).The infection rate of people working in animal by-product circulation was 2.85％ (2/70).The Infection rate of people working in other industries was 4.59％(5/109).Conclusions In Wulanchabu City,the morbidity of brucellosis and missing report rate are both high.The infection rate of people engaged in aquaculture is high and man morbidity is high.The awareness rate about prevention and treatment knowledge of brucellosis is low.We should carry out health education to inhabitants in endemic areas to improve their self-protection awareness and reduce the incidence of brucellosis.

The aim of this study was to design a simple, economic, with high Common Mode Rejection Ratio (CMRR), preamplifier and multi-channel masticatory muscle surface electromyography (sEMG) signal acquisition system assisting to diagnose temporomandibular disorders (TMD). We used the USB interface technology in the EMG data with the aid of the windows to operate system and graphical interface. Eight patients with TMD and eight controls were analyzed separately using this system. In this system, we analyzed sEMG by an optional combination of time domain, frequency domain, time-frequency, several spectral analysis, wavelets and other special algorithms under multi-parameter. Multi-channel sEMG System of Masticatory Muscles is a simple, economic system. It has high sensitivity and specificity. The sEMG signals were changed in patients with TMD. The system would pave the way for diagnosis TMD and help us to assess the treatment effect. A novel and objective method is provided for diagnosis and treatment of oral-maxillofacial disease and functional reconstruction.
Algorithms ; Computer Graphics ; Data Collection ; Electromyography ; Humans ; Masticatory Muscles ; physiology ; physiopathology ; Sensitivity and Specificity ; Signal Processing, Computer-Assisted ; Temporomandibular Joint Disorders ; diagnosis ; User-Computer Interface

Cerebral Palsy ; classification ; complications ; epidemiology ; Child ; Child, Preschool ; China ; epidemiology ; Developmental Disabilities ; complications ; Female ; Humans ; Infant ; Language Disorders ; complications ; Male ; Seizures ; complications ; Sex Factors ; Vision Disorders ; complications

AIM: (1) To investigate the effect of amniotic membrane transplantation (AMT) on rabbit conjunctival surface reconstruction with severe alkali burns. (2) To evaluate the possibility of AMT treatment for ocular alkali burns during recovering stage.METHODS: Animal models were established on 30 eyes of rabbits by creating severe alkali burns on the conjunctiva from the upper corneal limbus to the upper conjunctival fornix.Preserved human amniotic membrane transplantations and reconstruction of conjunctival fornix were performed at one week after injury (recovering stage). Epithelium growth of burned area after transplantation was observed using light microscope at 1, 2, 3, 4, and 8 weeks. Conjunctival tissue in transplantation area was collected at 1, 4 and 8 weeks. The ultrastructure of the collected tissue was studied by electron microscope. The results were compared with control group,which received only vitamin C subconjunctival injection and antibiotic eye drops as treatment for alkali burn. Exterior eye pictures were also taken at the end of the observation, the width from upper corneal limbus to the edge of upper fornix was measured. Data was analyzed statistically.RESULTS: 1) Tn the transplant group, conjunctival epithelium growth was observed in the area of AMT under both light and electron microscope 1 week after surgery. At 4weeks, conjunctival epithelium with goblet cells that resembled normal conjunctival tissues was observed in the whole amniotic membrane area. At 12 weeks, the conjunctival epithelium on the amniotic membrane was well formed, and the connective tissue under the epithelium was loose at the fornix. No fibrosis was identified. In contrast, conjunctival epithelium necrosis was observed in the control group at 2weeks after alkali burns. Re-epithelization did not occur through the 12-week observation. Severe fibrosis with inflammatory cells infiltration was observed between 4 to 8weeks. At 12 weeks, fibrosis of the connective tissue at the fornix developed and there were no conjunctival epithelium covering the burned area. 2) In the transplant group, the conjunctiva in transplanted area had no scarring and appeared smooth at 12 weeks. Upper fornix was reconstructed. The depth of fornix was 7.9±0.3mm (7.6-8.2mm), which was approximate to the normal depth 8.2±0.2mm (8.0-8.4 mm,P＞.05). While in the control group, the burned area appeared rough with granuloma formation and severe scarring. Upper fornix became shallow. The depth of fornix was 3.1±1.7mm(1.0 to 4.5mm.), and significant difference was found between control and transplant group (P＜0.01).CONCLUSION: Human amniotic membrane preserved in glycerin can promote cell adhering, migrating and differentiating of normal conjunctival epithelium.Reconstruction of conjunctival surface in early stage of alkali burn can be achieved by AMT. AMT can effectively prevent symblepharon formation.

Objective To evaluate the efficacy of preoperative aspects and dimensions used for an anatomical (PADUA) scores in determining the surgical approach for T1 stage renal masses.Methods From Jan 2010 to Dec 2012,clinical data of 122 cases (76 males and 46 females),who underwent surgery for T1 stage renal masses,were collected retrospectively.The mean age was 51 years(range 21-81) and mean body mass index was (22.8±3.9) kg/m2.Sixty-three tumors were found in left kidney and 59 in right kidney.Among them,78 patients were diagnosed as T1a stage and 44 patients were T1b stage.In patients with T1a stage,56 received nephron sparing surgery (NSS) and 22 received radical nephrectomy (RN).In patients with T1b stage,21 received NSS and 23 received RN.The PADUA nephrometry score was analyzed to evaluate their relationships to surgical type and the approach of NSS.Results According to the PADUA nephrometry score,the number of low risk,middle risk and high risk patients were 24,62,26,respectively.Inlow risk group,middle risk group and high risk group,the proportion of RN and NSS was 8.3％/ 91.7％,30.6％/69.4％,66.7％/33.3％.In 77 patients received NSS,the unmber of laparoscopic NSS and open NSS was 18 ∶ 4,25 ∶ 18,2 ∶ 10,respectively.The PADUA nephrometry score was significantly associated with the type of surgery (x2 =23.16,P＜0.01),and the NSS approach (x2 =13.57,P＜0.01).Tumor size (HR =2.79 ; 95％ CI,1.29-6.02 ; P＜ 0.01),percentage of tumor deepening into the kidney (HR =3.82; 95％CI,1.77-8.09; P＜0.01),longitudinal (HR=4.00;95％CI,1.83-8.72; P＜0.01),tumor relationships with renal sinus(HR=103.13; 95％CI,21.85-486.81 ; P＜0.01),tumor relationships with urinary collecting system (HR =15.11 ; 95％ CI,5.95-38.35 ; P＜ 0.01),rim tumor location (HR =3.50 ; 95％ CI,1.61-7.59; P＜0.01) were closely related with surgery approach.The correlation coefficients of relationship with renal sinus was highest (r=0.70).Conclusions The PADUA nephrometry score provides a simple,useful and stable system to character the salient renal anatomy and guide the surgery.Low risk group should consider the NSS as the first line therapy.NSS could also be chosen in the middle risk group.However,the renal anatomy in those patients should be referred.RN should be chosen in high risk group.