Objective:To evaluate the cytotoxicity of sodium hypochlorite(NaOCl) and chloramine-T at a same available chlorine concentration. Methods: L929 fibroblasts were used to test the cytotoxicity of NaOCl and chloramine-T at a same available chlorine concentration (0.500 0%, 0.250 0%,0.200 0%, 0.150 0%, 0.125 0%, 0.062 5%). Cell viability after 2 h, 30 min or 10 min exposure were measured by MTT assay. Results: Except the 0.500 0%-2 h group and 0.062 5%-30 min group, cell viability of NaOCl groups were higher than chloramine-T group(P<0.05). Conclusion: NaOCl solution has less cytotoxicity than chloramine-T at a same available chlorine concentration lower than 0.250 0%.

Objective To find out the distribution and changing trend of pathogens in positive blood cultures. Methods To analyze 183 isolates from 2010 blood specimens then the results were compared with the relative clinical data. Results A total of 183 strains were isolated from all blood specimens, of which 139 strains (76.0%) were identified as pathogens, where 69 strains (49.6%)being Gram-positive cocci, 57 strains (41.0%) gram-negative bacilli, and 13 strains (9.4%) fungi, respectively. The other 44 strains (24.0%) were contaminated. The major pathogens in 139 strains were Coagulase-negative staphylococci (40 strains, 28.8%), Pseudomonas aeruginosa (17 strains, 12.2%), Escherichia coli (15 strains, 10.8%), fungi 13 strains (9.4%) and Staphylococcus aureus (9 strains, 6.5%). Conclusion The dominant pathogens in positive blood cultures were gram-positive cocci, while gram-negative bacilli cultures were becoming less.

Objective To estimative the relationship between ras gene mutation,PCNA overexpression and the recurrence and prognosis of gallbladder cancer.Methods PCNA was studied by ABC immunohistology, ras gene mutation by PCR-RELP analysis.Results Histology,Nevin staging and operative methods were relevant to the prognosis of gallbladder cancer.The patient with stag IV,V gallbladder cancer had a poor prognosis;radical operations could prolong patients survival time.The mortal risk of patients with ras gene mutation was 1.62 times higher than that without ras gene mutation,with high overexpression of PCNA was 2.2 times higher than that with low expression of PCNA. Conclusions Differentiation degree, Nevin′s staging, mutation of ras gene and overexpresion of PCNA could be the prognostic factors in gallbladder cancer,and could help to select the operative procedure and to eluvate the surrival.

Objective To investigate the effect of early rehabilitation treatment in the patients with small cerebral hemorrhage and its possible mechanisms .Methods 133 patients with cerebral hemorrhage were randomly divided into the routine treatment , non-early rehabilitation and early rehabilitation groups and given the routine drug treatment .The early rehabilitation group and the non-early rehabilitation group were additionally given the rehabilitative training after 2 d and 14 d respectively .The scores of Fugl-Meyer reassessment and the Barthel index were assessed before training and after 4-week training ,and the serum levels of circulat-ing endotheial progenitor cells(EPCs) and vascular endotheial cell growth factors(VEGF) were detected .Results Compared with the routine treatment group and the non-early rehabilitation group ,the scores of Fugl-Meyer reassessment and the Barthel index af-ter treatment in the early rehabilitation group were significantly increased (P< 0 .01) .The serum levels of circulating EPCs and VEGF in the early rehabilitation group were also significantly increased compared with the routine treatment group control (P<0 .01) .Conclusion Early rehabilitation treatment can obviously improve the limb movement function and the daily living ability in the patients with small cerebral hemorrhage ,its mechanisms may be involved with the increase of circulating EPCs and VEGF .

Objective To make clear the relationship between adenoma,malignant transformation of ade- noma and carcinoma in gallbladder.Methodes The nuclear morphometry was performed with a TJTY-300 Auto- matic Image Analyser and PCNA was measured with immunohistochemisty in 25 cases of carcinoma,20 cases of adenoma and 3 cases of normal gallbladder.Results (1) Cell DNA content,atypia and PCNA index were in- creased gradually from the normal cell to dysplasia to malignant transformation of adenoma to carcinoma in gallblad- der;(2) Aneuploidy in gallbladder adenoma and PCNA index had significant relationship to the size of adenoma and gallstones (P

Objectives To analyse the clinical feature,drug and surgical treatment and prognosis of rheumatic diseases associat- ed corneal melting.Design Retrospective case series.Participants 14 patients (22 eyes) with rheumatic diseases associated corneal melting.Methods The clinical data of patients were analysed,including history,visual acuity,slit-lamp microscopy examination,drug and surgical treatment and follow-up results.Main Outcome Measures The clinical feature,therapeutic effects and recurrence. Results The follow-up was 6～24 months.Rheumatic diseases associated corneal melting always firstly occurred from the upper corneal limbus.The marginal lesions of cornea included melting of the stroma,resulting in corneal thinning or even perforation,with neovascu- larization.The corneal lesions in 4 eyes were within 1 quadrant,10 eyes within 2 quadrants,6 eyes within 3 quadrants,and 2 eyes in 4 quadrants.Eight eyes of 5 cases,whose corneal lesions were thinner than 2/3 of normal corneal thickness,received 1% cyclosporine A and 0.5% heparin eyedrops.Among those,the lesions in 3 eyes of 2 cases progressed worse.Fourteen eyes of 9 cases,whose corneal lesions were thicker than 2/3 of normal corneal thickness,received marginal lamellar keratoplasty.Among those,recurrent signs were noted in 10 eyes of 6 cases.Conclusions Rheumatic diseases associated corneal melting has typical clinical features.Local cy- closporine A and heparin treatment are effective for patients in early stage.A high recurrent rate is found for patients in late stage re- ceived marginal lamellar keratoplasty.

Acupuncture Therapy ; Female ; Humans ; Middle Aged ; Ventricular Premature Complexes ; therapy

Objective To introduce our experience of treating Pilon fractures with an articulated and spanning external fixator. Methods From February 2002 to June 2004, 19 patients with high energy Pilon fractures (21 sides) were treated with a T- shaped unilateral articulated and spanning external fixator in our department. The fixators were placed medial1y across the ankle joint, and the fixation of fracture was enhanced by a combined use of limited internal fixation. The main causes of injury were traffic accidents and high altitude falling. The distal 2 pins were inserted into the talus and the tuberosity of calcaneus so that the subtalar joint was treated as an axis during ankle movement. At approximately postoperative 2 or 3 weeks, the articular hinge was released and the patient began ankle exercises. The clinical outcomes and complications were investigated and the postoperative X- ray examinations of the ankle were also evaluated. Results 19 patients were followed up for a mean period of 13 months. No infection of wound or pin site, no neurovascular complication or no nonunion was found. According to Baird & Jackson ankle joint scoring system, their functional evaluation of the ankle scored from 72 to 98 (averaging 92). Clinical results were excellent in 4, good in 12, fair in 3 and poor in 2. Reduction of the articular surface was anatomic in 16, fair in 3 and poor in 2 according to Burwell & Charnley classification. Conclusions External fixation with an articulated and spanning fixator combined with limited internal fixation is a satisfying technique to treat Pilon fractures. This technique can restore anatomical articular surface, allow early ankle joint motion, effectively decrease complications of both wound and bone healing, and prevent ankle joint stiffness after fixation.

Objective To analyze the clinical value of ovarian surgery in the treatment of primary ovarian mucinous carcinoma patients with fertility requirements.Methods 51 cases with fertility requirements with primary ovarian mucinous carcinoma who received surgical treatment were analyzed.The postoperative serum follicle stimulating hormone (FSH) and luteinizing hormone (LH),estradiol (E-2),anti Mullerian hormone (AMH) were deteced.The patients were followed up for 3 years,the survival rate and fertility were observed.Results Of 51 patients underwent surgery,postoperative 7d,14d,the FSH,LH levels in serum were higher than before operation (F=24.198,21.554,all P<0.05),E-2,AMH,PSV values were lower than before operation (F=24.407,35.028,11.064,all P<0.05).During the follow-up period to June 2015,there were 4 patients died of tumor recurrence,2 patients were lost to follow-up,45 patients survived,the survival rate was 88.23%.Of 45 patients survived,41 patients were normal menstrual cycle,menstruation,menstrual cycle 26-31 d,average (28.2±2.2)d;4 patients with irregular menstruation.Married women in the follow-up of 44 cases,including 28 patients with successful pregnancy,the pregnancy rate was 63.64%,there were 4 cases of spontaneous abortion,pregnancy in 3 patients because of abortion,pregnancy examination found 17 cases of abnormal pregnancy,4 cases of premature delivery.Conclusion In patients with primary ovarian mucinous carcinoma,it is feasible to use fertility preserving function,and the pregnancy rate is high,but the follow-up and monitoring should be strengthened to avoid the bad prognosis.

Objective To study the effect of pulsing magnetic field (PMF) on the osteogenesis of the distracted region in cosmetic limb lengthening, and to search for an effective therapeutic method for promoting the recovery of the cosmetic patient. Methods Thirty adult short stature volunteers for cosmetic heightening were randomly divided into PMF group and control group, 15 in each group. Magnetic stimulation was given to the PMF group on the day after operation. X-ray examination was taken on fixed interval, and lengthening index was used for bone healing evaluation. Results The height increase ranged from 5～9 cm, mean (6.6?1.2) cm, and the mean lengthening rate was 19.2 % : 5～8 cm (6.2?1.1) cm in the PMF group and 5.2～9 cm (6.8?1.6)cm in the control group ( P