The low frequency electrical impulses has a significant effect in pain control.Aportable low frequency therapeutic apparatus has been made in our laboratory This paper presents the structure,principle,specification and application of our therapeutic apparatus (including both mono-impulse and train-impulse models) as well as the results of its clinical application.

Objective To elucidate the significance of expressive change in tissues of breast carcinomas.Methods Expression of PTEN protein was detected by immunohistochemistry (SP) in breast carcinomas?atypical intraductal hyperplasia?normal breast tissue. Results The positive rate and expressive intensity of PTEN protein in breast carcinoma were lower and weaker than those in atypical intraductal hyperplasia and normal breast. The intensity of PTEN protein expression was associated with differentiation degree of breast carcinoma, the poorer differentiation of breast carcinoma , the weaker expression of PTEN protein. Comparing with breast carcinoma, the PTEN expression level of atypical intraductal hyperplasia was higher , but It was lower than normal breast tissue. it is helpful for us to assess the carcinogenesis probability of atypical intraductal hyperplasia by detecting the PTEN.

Animals ; Cadherins ; metabolism ; Carcinoma, Hepatocellular ; metabolism ; pathology ; Catenins ; metabolism ; Epithelial-Mesenchymal Transition ; drug effects ; genetics ; Humans ; Liver Neoplasms ; metabolism ; pathology ; MicroRNAs ; genetics ; metabolism ; Transforming Growth Factor beta ; pharmacology

Objective To observe the antibacterial activity of artificial antimicrobial peptides (AMPs) to Blastomyces albicans, E. coli and Staphylococcus aureus in oral infection in vitro. Methods The AMPs were dissolved into PBS or sterilized saliva, then the inhibi-tion of different concentration AMPs to E. coil was evaluated by tube testing. The inhibition effect of different concentration of AMPs to Staph-ylococcus aureus and Blastomyces albicans were evaluated by antibiotic-susceptive test paper. Results When the concentration of AMPs added to broth of E. coli is from 150μmol/L to 300μmol/L , the bacterium count is 0 while the number in control is 6700 ～ 9200cfu/ml. At 100μg/tablet AMPs, the diameter of inhibitor zones of Staphylococcus aureus and Blastomyces albicans are 13mm and 11 mm. At 300μg/ tablet, the diameter are 16 mm and 17mm. AMPs dissolved in PBS and saliva have similar antimicrobial activity. Gonclusions The AMPs is effective to prevent Blastomyces albicans, E. coli and Staphylococcus aurcus in oral infection in vitro.

Objective To observe the influence of rational emotional therapy on breast cancer patients preoperation. Methods 50 cases of breast cancer patients were randomly divided into the experimental group and the control group with 25 cases in each group. The control group was provided routine therapy and nursing, health education and general psychological nursing, based upon these routine measures, the experimental group adopted systematic and standardized rational emotional therapy. Zung self rating depression scale(SDS), Zung self rating anxiety scale(SAS), Pittsburgh Sleep Quality Index scale(PSQI)were used to evaluate the effect between two groups. Results No significant differ-ence existed in anxiety, depression and sleep quality between the two groups at admission, but significant difference was seen one day preoperation, also there was statistical significance between at admission and one day preoperation in the experimental group. Conclusions Rational emotional therapy of breast can-cer patients who underwent surgical operation played a significant role on their preoperative short-term e-motions(including anxiety,depression, sleep quality), and worthy of clinical application.

Cochlear Implantation ; methods ; Fractures, Bone ; surgery ; Humans ; Temporal Bone ; injuries ; surgery ; Temporomandibular Joint ; surgery

Objective To explore and compare the effect of sevoflurane and disoprofol to inflammatory factors in patients received abdominal surgeries.Methods Patients with sevoflurane and disoprofol respectively were anaesthetized and detected IL-6,IL-8,IL-10 and TNF-α in their serum at T1 (when anesthesia induction),T2 (after anesthesia induction),T3 (30min after beginning of operations) and T4 (after operations).Results Compared with T1,the serum level of IL-6,IL-8,IL-10 and TNF-α increased significantly in all patients(all P ＜ 0.05) ; Compared with disoprofol group,the serum level of IL-6,IL-8 and TNF-α increased significantly (all P ＜ 0.05) ; Compared with sevoflurane group,the serum level of IL-10 increased significantly(all P ＜ 0.05).Conclusion Intravenous anesthesia with disoprofol in patients receiving abdominal operations is proper for maintenance of inflammatory balance.

Objective To make a nationwide external quality assessment of tests for isolation and identification of N.gonorrhoeae in medical and healthcare facilities at different levels,and to analyze current problems.Methods Lyophilized quality control samples were uniformly delivered to 252 medical and healthcare facilities providing sexually transmitted disease (STD) services at different levels.Test results were analyzed by the National Center for STD Control,China Center for Disease Control and Prevention,and evaluation results were fed back to participating laboratories.Results Finally,test results were received from 203 (80.56％) facilities.The comprehensive score averaged at 87.14,and facilities achieving a comprehensive score of 80 or greater amounted to 80.30％ (163/203).The coincidence rate was 53.69％ (109/203) for all of the 5 quality control samples,82.76％ (168/203) and 87.68％ (178/203) respectively for two quality control samples containing only N.gonorrhoeae,86.21％ (175/203) and 96.06％ (195/203) respectively for a sample containing Neisseria sicca and a sample containing Enterococcus faecalis,69.46％ (141/203)for a sample containing different species of Neisseria.Conclusion The external quality assessment reveals a disparity in the capability to isolate and identify Neisseria among medical and healthcare facilities providing STD services at different levels.

Objectives To investigate the associations of serum superoxide dismutase ( SOD) , malondialdehyde (MDA), and uric acid (UA) with blood pressure and the prevalence of hypertension in a Chinese population. Methods We measured serum superoxide dismutase (SOD), malondialdehyde (MDA) and uric acid (UA) in 506 randomly selected participants. For database management and statistical analysis, we used the SAS 9.13 Software. Results Compared with normotensive participants, hypertensive patients had significantly lower serum levels of superoxide dismutase activity ( =0.0002), and higher serum levels of malondialdehyde and uric acid ( <0.05) .Univariate analysis indicated that serum superoxide dismutase activity was negatively associated with blood pressure, and serum levels of uric acid (P 0.0001);while serum levels of malondialdehyde was positively associated with blood pressure, and serum levels of uric acid (P 0.05) . There was significant difference in systolic (Ptrend=0.02) and diastolic blood pressure (Ptrend=0.04) between three groups defined by tertiles of serum levels of superoxide dismutase, with a lower blood pressure in the highest tertile than in the lowest tertile. Furthermore, the systolic (Ptrend=0.01) and diastolic blood pressure (Ptrend=0.003) in the highest tertile, which defied by the serum levels of malondialdehyde, were significantly higher than those in the lowest tertile. Conclusions Hypertensive patients have a disturbed oxidative and anti-oxidative balance. Oxidative stress may play a role in the pathogenesis of hypertension in Chinese.

BACKGROUND:Many studies have shown that different nanostructures produce different influences on cellbioactivity, but the nanonetwork structure is not reported yet. OBJECTIVE:To study the influence of the nanonetwork topography on the bioactivity of bone marrow mesenchymal stem cels. METHODS:The nanonetwork topography was fabricated on biomedical titanium surface by alkali-heat treatment, and pure titanium served as control group. Bone marrow mesenchymal stem cels were co-cultured with the above two types of samples. cellmorphology and cytoskeleton were observed using scanning electron microscope and immunofluorescence method. The celladhesion, proliferation and osteogenic differentiation were detected by measurement of absorbance values at different culture time. RESULTS AND CONCLUSION: The nanonetwork topography had significant advantage on the number of adherent cels at 30, 60 and 120 minutes of co-culture. The cellproliferation was significantly accelerated by the nanonetwork topography at days 1, 3, 5 of co-culture, and the absorbance values in the nanonetwork group were significantly higher than those in the pure titanium group (P < 0.05). The alkaline phosphatase activity in the nanonetwork group was also significantly higher than that in the pure titanium group at 14 days of osteogenic induction (P < 0.05). The cellshape and cytoskeleton on the nanonetwork surface were better than those on the titanium surface. These findings indicate that the nanonetwork topography has better effects on cellbioactivity compared with pure titanium.