Objective To explore the tumor suppressive effect of superantigen staphylococcal enterotoxin B (SEB) for mice beared by Lewis lung cancer cell (LLCC). Methods SEB gene expressive plasmid PCDH-SEB-GFP was constructed and transfected into LLCC and it was detected by Western blot. Tumor-bearing mice model was established by subcutaneous injection of LLCC and SEB expressive plasmid PCDH-SEB-GFP was successfully injected into the tumor to observe its suppressive effect on the growth of Lewis lung cancer in mice. Results SEB expression was detected after transfection of LLCC with SEB gene plasmid PCDH-SEB-GFP. Intratumoral injection of plasmid PCDH-SEB-GFP could significantly inhibit the growth of Lewis lung cancer in tumor-bearing mice. Conclusions Intratumoral injection of superantigen SEB expressive plasmid can inhibit the growth of Lewis lung cancer in mice. It deserves a further study that SEB gene can work as an exogenous antigen gene in immune gene therapy for lung cancer.
Objective To explore maternal health services utilization in rural areas in Rongchang County, and to analyze the influencing factors. Methods Seven hundred pregnant women were enrolled by stratified cluster sampling. The data was analyzed in SAS 8.2. Results Ninety-five percent of pregnant women had an antenatal examination, 69.3% had it for 5 times or more, and 75.4% received checking in the earlier stage of pregnancy; 98.3% were delivered in hospital, 26.3% had postpartum visit 3 times or more, and 16.7% had been systematically managed. The main influencing factors of systematic management rate were family yearly income before pregnancy whether or not the patient participated in the new rural cooperative medical scheme, and the number of pregnancies. Conclusion The maternal systematic management rate in the county has yet to be improved. Health education to improve prenatal care and postnatal visit status should be strengthened, and women should be guided to participate in the new rural cooperative medical scheme.
Objective To understand the adult male’s acceptance of circumcision and its influencing factors in Chongqing, so as to provide scientific evidences for developing male circumcision extension programs and health education materials. Methods The circumcision acceptance of adult males from 18 to 45 years old in Chongqing was investigated by using multistage stratified cluster sampling method. Results Among 1 502 subjects, 661 males persisted in their willingness to do circumcision, and the operation acceptance rate was 44.01%; the acceptance rate in the 18-30 age group was higher than that in the 31-45 age group; the higher the education level, the higher the acceptance of the circumcision; and workers and businessmen had greater willingness to accept than farmers. The multivariate logistic regression analysis showed that the positive factors affecting acceptance rate were “being aware that the circumcision is suitable for phimosis and redundant prepuce” (OR=21.01, 95%CI 14.21 to 31.06), “being told by friends who had circumcision before” (OR=1.65, 95%CI 1.25 to 2.19), and “being realized on the risk of phimosis and redundant prepuce” (OR=1.43, 95%CI 1.01 to 2.02); while the negative factors were “being worried about the surgical complications” (OR=0.69, 95%CI 0.50 to 0.95) and “being afraid of the ridicule from people around” (OR=0.63, 95%CI 0.40 to 0.99). Conclusion The willingness rate of adult males to accept circumcision was low in Chongqing; the publicity and education should be strengthened, and the good social atmosphere should be built for increasing the willingness rate of accepting circumcision.
ObjectiveTo explore the efficacy of percutaneous pedicle screw internal fixation and minimally invasive lateral small incisions lesion debridement and bone graft fusion via dilated channels in the treatment of lumbar tuberculosis.MethodsThe clinical data of 22 cases of lumbar tuberculosis treated with percutaneous pedicle screw internal fixation combined with dilated channels with minimally invasive lateral small incision lesion debridement and bone graft fusion between January 2016 and June 2018 were retrospectively analyzed. There were 12 males and 10 females, with an average age of 47.5 years (range, 22-75 years). The affected segments were L2, 3 in 5 cases, L3, 4 in 8 cases, and L4, 5 in 9 cases, with an average disease duration of 8.6 months (range, 4-14 months). Preoperative neurological function was classified according to the American Spinal Injury Association (ASIA), with 3 cases of grade C, 9 cases of grade D, and 10 cases of grade E. The operation time, intraoperative blood loss, and postoperative complications were recorded. At preoperation, 3 months after operation, and last follow-up, the C reactive protein (CRP) and erythrocyte sedimen- tation rate (ESR) were tested to evaluate tuberculosis control; the pain visual analogue scale (VAS) score was used to evaluate the recovery of pain, and the Oswestry disability index (ODI) was used to evaluate the function recovery of the patient’s lower back; the kyphosis Cobb angle was measured, and the loss of Cobb angle (the difference between the Cobb angle at last follow-up and 3 months after operation) was calculated. At last follow-up, the ASIA classification was used to evaluate the recovery of neurological function, and the effectiveness was evaluated according to the modified MacNab standard.ResultsThe operation time was 110-148 minutes (mean, 132.8 minutes) and the intraoperative blood loss was 70-110 mL (mean, 89.9 mL). Two patients experienced fat liquefaction of the incision and delayed healing; the incisions of the remaining patients healed by first intention. All patients were followed up 18-24 months, with an average of 21.3 months. All bone grafts achieved osseous fusion, the pedicle screws were fixed in reliable positions, without loosening, displacement, or broken rods. There was no recurrence of tuberculosis. The ESR, CRP, VAS scores, ODI scores, and kyphosis Cobb angle of the affected segment at 3 months after operation and last follow-up were significantly improved (P<0.05); there were no significant differences between at last follow-up and 3 months after operation (P>0.05), and the loss of Cobb angle was (0.6±0.5)°. The patient’s neurological function recovered significantly. At last follow-up, the ASIA grades were classified into 1 case with grade C, 1 case with grade D, and 20 cases with grade E, which were significantly improved when compared with preoperative grading (Z=−3.066, P=0.002). According to the modified MacNab standard, 16 cases were excellent, 3 cases were good, 2 cases were fair, and 1 case was poor. The excellent and good rate was 86.4%.ConclusionPercutaneous pedicle screw internal fixation combined with dilated channels with minimally invasive lateral small incisions lesion debridement and bone graft fusion has the advantages of less bleeding, less trauma, and faster recovery, which is safe and effective in the treatment of lumbar tuberculosis.
Objective To estimate the effect of desensitizing toothpaste containing arginine on dentine hypersensitivity. Methods Such databases as CNKI, PubMed, Web of Science and Cochrane Trials Register (Issue 4, 2008) were retrieved, and Google was used as a supplementary tool to search the information up to March 2010. Randomized controlled trials (RCTs) of treating dentine hypersensitivity with arginine-containing toothpaste were included, and the relevant information was extracted and the quality evaluation was undertaken. Meta-analyses were performed with RevMan 5.0 software. Results Five RCTs with 397 patients were included. The results of meta-analyses showed that at 8 weeks, arginine-containing toothpaste was significantly different from potassium-containing toothpaste in terms of tactile sensitivity test (SMD=1.32, 95%CI 0.68 to 1.96) and air blast test (SMD= –0.77, 95%CI –1.22 to 0.32) with a better therapeutic effect. Conclusion Current literature evidence shows that the arginine-containing toothpaste is effective for the dentine hypersensitivity. However, this study is based on a small number of RCTs and samples, so further studies with high-quality and large-sample RCTs are needed.
Objective To estimate the proportion of Chongqing TB patients who have access to mobile phones, to describe the utilization practice of those mobile phones, and to learn the general information of those TB patients, so as to provide feasibility basis for further intervention of SMS reminder systems. Methods The stratified cluster sampling method was used and four TB high-risk districts were selected. Both quantitative and qualitative research methods were used to interview the TB patients and suspects who had come to their local TB dispensaries during the past two months. The quantitative data was double entered using EpiData 3.1. The association of mobile phone utilization parameters with key variables was determined using chi-square test and logistic regression analyses. The qualitative data was managed, coded and retrieved using MAXQDA, and analyzed using thematic framework approach. Results Of the patients interviewed by quantitative research, the mobile phone ownership rate was 91.1%; 914 cases (80.4%) of the respondents were able to receive text messages; and most people (81%) held favorable opinions on SMS reminders. The main factors related to mobile phone ownerships and receiving SMS were age, occupation, education level, and place of residence. The male patients, in the age group of 19-49 years old, with education level of high school or higher were more likely to have access to mobile phones. The results from qualitative interview were similar. Conclusion Considering the high access to mobile phones of patients interviewed and patients’ views on SMS reminders, it is feasible to conduct a pilot intervention using SMS as a strategy to improve adherence to TB treatment in Chongqing.
Interfacility transport of critically ill children is an important part of pre-hospital emergency care. The development of 5th generation mobile networks has brought revolutionary changes to emergency medicine, which can realize real-time sharing of information between hospitals and transfer ambulance units. In order to give full play to the advantages of superior medical institutions in diagnosis and treatment technology, equipment resources, and realize the safe and fast transfer of critically ill children, the technical specifications for the construction of interfacility transport of critically ill children’s ambulances with 5th generation mobile networks are specially formulated to standardize the team building, equipment and materials, transport process and quality control requirements for critically ill children’s ambulance transport, so as to reduce the fatality rate of critically ill children and improve the prognosis.