Objective To study the effects and molecular mechanism of MAWBP in the proliferation, invasion and migration of human colorectal cancer cell lines. Methods Colorectal cancer cell lines, caco-2 and HT-29, were divided into MAWBP over-expressed group and control group. MAWBP was stablely over-expressed in both cell lines by lentivirus, and the positive clones were screened by puromycin. The expression of MAWBP gene at mRNA and protein levels was evaluated by RT-PCR and western blot. Cell proliferation was detected by MTT. Cell migration and invasion were detected by transwell experiment. The EMT related protein levels of Snail, E-cadherin, and MAPK pathway protein of ERK, p38, p-ERK, p-p38 were determined by western blot analysis. Results Compared with the control group, the expression of MAWBP was significantly higher in HT-29-MAWBP and caco2-MAWBP group . The cell proliferation , invasion and migration ability significantly reduced in the HT-29-MAWBP group. The expression of Snail, p-ERK and p-p38 significantly decreased, while the E-cadherin increased in HT-29-MAWBP and caco2-MAWBP group. Conclusions Over- expression of MAWBP exerts an inhibitory effect on the proliferation, invasion and migration of colorectal caner cells via inhibit the MAPK pathway and regulate the EMT process.

Objective To evaluate the effects of transcatheter renal sympathetic denervation (RSD) on the cardiac systolic function of dogs with pulmonary arterial hypertension(PAH)using two-dimensional speckle tracking imaging (2D-STI).Methods Twenty two dogs were divided in to three groups:control group (n=7),PAH group (n =8),PAH+RSD group(n =7).Pulmonary artery hypertension models were made by monocrotaline injection in PAH group and PAH+RSD group,while bilateral renal artery sympathetic nerve were also ablated in PAH+RSD group.Meanwhile,sham operation treatment were made in the control group and PAH group.The changes of blood pressure and cardiac indicies of ultrasound were observed before and after 8 weeks respectively.Then the left ventricular(LV)lateral strain,septal strain (IVS LS)and right ventricular(RV)strain were calculated.In the apical 4-chamber view,time from QRS onset to peak systolic strain in each the six segments of the LV and RV were measured and standard deviation of the time to peak longitudinal strain of six segments (LVTsl-6SD and RVTsl-6SD)were calculated.LV twist degree were obtained from LV rotation curve in basal and apical short-axis planes. Results After 8 weeks,there was no difference in the mean strain of LV lateral wall among the three groups,while the mean strain of RV lateral wall and septal were higher in PAH+RSD group than the PAH group [(18.91±0.86)% % vs 16.34±1.36)%,P <0.001;(18.39±1.03)% vs (17.02±1.00)%,P <0.001,respectively].Compared with PAH group,LVTsl-6SD and RVTsl-6SD of PAH + RSD group decreased significantly [(25.45±3.59)ms vs (40.40±2.83)ms,P <0.001;(34.16±2.81)ms vs (51.98± 3.64)ms,P <0.001,respectively].The LV twist degree of PAH+RSD group increased significantly[(10.47± 0.73)°vs (8.46±1.06)°,P <0.001].Conclusions RSD can reduce the influence of pulmonary artery hypertension on cardiac systolic function.

ObjectiveTo evaluate the treatment efifcacy of the treatment promotion of standardized management for chil-dren with asthma.MethodsMedical records of 150 children with asthma were reviewed and divided into management group or control group according to whether standardized management was accepted. Comprehensive asthma education for asthma pa-tients and their parents including asthma associated basic knowledge education, health education as well as follow-ups at deifned intervals was conducted in 78 cases. In the meantime, standardized asthma therapies were performed. Control group involved 72 cases who did not receive asthma education managements and only accepted regular clinical therapies. After 1-year observational follow-up, , clinical efifcacy of children with asthma, changes of knowledge-attitude-practice of parents, and compliance of med-ication were compared between the two groups.ResultsAfter promotion of standardized managements treatment, asthma con-trol rates in the management group were signiifcantly higher than that of the control group(χ2=54.68,P<0.01); In addition, the rate of asthma attacks, emergency visits as well as hospitalizations were obviously reduced in the management group than control group (both withP<0.01). Knowledge associated with asthma, therapy and management executions as well as knowledge-atti-tude-practice of parents also demonstrated apparent elevations in the management group (P<0.01); At the same time, management group has illustrated superior medication compliance over the control group (χ2=66.27,P<0.01).ConclusionPromotion of standardized treatment management among children with asthma can help to achieve effective control by raising levels of knowl-edge-attitude-practice of the parents as well as the patient’s compliance to the treatment.

Objective To investigate whether transcatheter renal sympathetic denervation (RSD) by radiofrequency ablation interfere with the development of left ventricular (LV) mechanical dyssynchrony during the progression of heart failure (HF).Methods Nineteen beagles were randomly divided into sham-operated group (six dogs),control group (seven dogs),and RSD group (six dogs).Sham-operated group were implanted with pacemakers without pacing;Control group were implanted with pacemakers and underwent 3 weeks of rapid right ventricular pacing;and RSD group underwent catheter-based RSD bilaterally and were simultaneously implanted with pacemakers.LV dyssynchrony was analyzed via 2D speckle-tracking strain echocardiography to evaluate LV function.Longitudinal dyssynchrony was determined as the standard deviation for time-to-peak speckle-tracking strain on apical 4-and 2-chamber views.Radial and circumferential dyssynchrony was determined as the standard deviation for time-to-peak speckle-tracking strain in mid-and base-LV short-axis views.LV systolic pressure (LVSP) and LV end-diastolic pressure (LVEDP) were measured.The LV interstitial fibrosis was determined by histological analysis.Results After 3 weeks,all of the dogs in both the control and RSD groups showed greater LV end-diastolic volume compared with the sham-operated group;however,the dogs in the RSD group had a higher LV ejection fraction (LVEF) than the dogs in the control group (P ＜0.001).The LV systolic strains were higher in the RSD group than in the control group (P ＜0.001 for longitudinal,circumferential and radial strain,respectively).The levels of LV dyssynchrony were lower in the RSD group than in the control group (P ＜ 0.001 for longitudinal,circumferential and radial dyssynchrony,respectively).Compared with control group,RSD group had lower LV end-diastolic pressures and less fibrous tissue.Conclusions RSD inhibites the development of left ventricular mechanical dyssynchrony during the progression of heart failure in dogs.

Objective To evaluate the clinical efficacy and safety of combined ozone hydrotherapy for the treatment of atopic dermatitis(AD). Methods A total of 60 patients with moderate or severe AD aged from 6 to 65 years were enrolled, and randomly and equally divided into a test group and a control group. Both the two groups were treated with oral levocetirizine capsules 5 mg once a day, topical tacrolimus ointment twice a day, and topical moisturizers. The test group was additionally treated with ozone hydrotherapy 3- 5 times every week. The treatment lasted 2 weeks. The severity scoring of atopic dermatitis (SCORAD) score, visual analog scale (VAS) score, dermatology life quality index (DLQI) or children′s dermatology life quality index (CDLQI) score were assessed before and after the treatment, and compared between the two groups. Enzyme?linked immunosorbent assay(ELISA) was performed to measure the levels of interleukin?4(IL?4)and nerve growth factor(NGF)in peripheral blood from the patients before and after the treatment. Results After 2?week treatment, the SCORAD scores, VAS scores and DLQI/CDLQI scores significantly decreased from 42.13 ± 16.03, 7.14 ± 2.12 and 14.92 ± 5.94 before the treatment to 27.3 ± 11.01, 2.23 ± 1.31 and 9.69 ± 4.17 respectively in the test group(all P<0.05), and from 43.36 ± 17.78, 6.45 ± 1.29 and 15.15 ± 5.40 to 39.65 ± 16.67, 3.32 ± 0.87 and 12.84 ± 5.37 respectively in the control group(all P<0.05). In addition, all the three scores were significantly lower in the test group than in the control group after 2?week treatment(all P<0.05). A significant decline was also observed in the levels of IL?4 and NGF in peripheral blood in the two groups at the end of the treatment compared with those at baseline(all P<0.05), and the magnitude of decline in IL?4 levels was significantly higher in the test group than in the control group(t=8.57, P<0.05), while that in NGF levels was insignificantly different between the two groups(t=9.51, P>0.05). Conclusion Combined ozone hydrotherapy can effectively and safely improve the condition of patients with AD, likely by decreasing the levels of IL?4 in peripheral blood.

Objective To investigate the effect of phorbol-12-myristate-13-acetate(PMA)on cyclooxygenase-2(COX-2) mRNA and protein expression in cultured human HaCaT keratinocytes,and the mechanism for cytotoxity of PMA against keratinocytes.MethodsRT-PCR and Westem blot were utilized to detect the expression of COX-2 mRNA and protein in cultured HaCaT ells at 24 hours after the treatment with various concentrations of PMA (0.1,1.0,10 mg/L).ResultsWithout any treatment,there was no or a weak expression df COX-2 mRNA and protein in HaCaT cells;incubation witll PMA resulted in the induction of the expression of COX-2 in HaCaT cells.The expression levels of COX-2 mRNA and protein in 10 mg/L PMA-pretreated HaCaT cells were significantly higher than those in 1.0 mg/L PMA-pretreated HaCaT cells,which was in turn higher than that in 0.1 mg/L PMA-pretreated cells and untreated cells;the difrerence was statistically significant (all P＜0.01).Conclusion These results suggest that PMA may be involved in keratinocyte tumorigenesis by upregulating he expression of COX-2 as well as synthesis and release of prostaglandin in keratinocytes.

Extralevator abdominoperineal excision (ELAPE) has been suggested to potentially improve oncological outcomes in advanced low rectal cancer patients. However, the urogenital function impairment as one of the main complications deteriorates the quality of life in these patients. The key point to prevent urogenital function impairment is to avoid autonomic nerve injury, including the superior and inferior hypogastric nerve plexus and neurovascular bundle. Three areas should be especially focused during surgery, including the posterolateral aspect of the prostate during the separation of the rectum from prostate, the lateral wall of ischioanal fossa and the area in front of anal canal. Previous presumption supposed that extended resection, though promoting oncologic outcomes, might lead to enlarged injury to surrounding vessels and nerves that deteriorated patients′ urogenital function. But recent studies show that postoperative urogenital function outcomes of rectal cancer patients who underwent ELAPE are not inferior to conventional APE after the induction of minimal invasive approaches including laparoscopic and robotic surgery. Their quality of life can be comparable with patients who underwent conventional APE, and are even better in some particular area. Moreover, as further improvement of ELAPE procedure has been made, the concept of individualized ELAPE addressed the importance of personalized surgical procedure based on tumor stage and location, dedicating to avoid injury to vessels and nerves through preserving more surrounding tissues. Urogenital function outcomes, as part of postoperative outcomes, get more and more attention in recent years. We review current studies on urogenital function after ELAPE from anatomy to clinical research, in order to raise surgeons′ attention of nerve preservation technique and to improve their understanding of ELAPE procedure.

Objective To evaluate the predictive value of serum carbohydrate antigen 50(CA50),tumor specific growth factor(TSGF),and tissue polypeptide antigen(TPA)levels for sensitivity to radiochemotherapy in patients with middle-and advanced-stage breast cancer using a nomogram model.Methods Eighty-two patients with middle-and advanced-stage breast cancer were selected as the study sub-jects.All patients received paclitaxel chemotherapy combined with radiotherapy and were divided into sensitive(n= 57)and insensitive(n= 25)groups according to the Response Evaluation Criteria in Solid Tumors.The general information of the patients,serum expression of CA50,TSGF,and TPA,and their differences before and after treatment were recorded.A nomogram model was constructed,and cali-bration curves,receiver operating characteristic(ROC)curves,and decision curves were used to evaluate the predictive power and clinical utility of the nomogram model.Results Significant differences were observed in tumor diameter,vascular invasion,TNM stage,lymph node metastasis,and degree of differentiation between the two groups(P＜0.05).Compared to those in the sensitive group,the serum expression of CA50,TSGF,and TPA after treatment was higher,and the difference in CA50,TSGF,and TPA was smaller in the insensitive group(P＜0.05).Three predictive variables were identified in the LASSO regression:differences in CA50,TSGF,and TPA.The logistic regression results showed that differences in CA50,TSGF,and TPA influenced sensitivity to radiochemotherapy in middle-and advanced-stage breast cancer(P＜0.05).A nomogram model was constructed using differences in CA50,TSGF,and TPA.Calibration,ROC,and decision curves showed the model's good predictive accuracy and clinical utility.Conclusion Serum expression of CA50,TSGF,and TPA is high in patients with middle-and advanced-stage breast cancer who are insensitive to radiochemotherapy,and differences in CA50,TSGF,and TPA affect their sensitivity to radiochemotherapy.The nomogram model had good predictive value and clinical utility.

Objective:To prevent the occurrence of children′s unintentional injuries, clinical characteristics were analyzed for 1 379 children hospitalized for unintentional injuries over a 5-year period at the First Affiliated Hospital of Xiamen University.Methods:We searched the First Affiliated Hospital of Xiamen University Pediatric Refined Management Database for all cases of children aged 0-14 years who were hospitalized for unintentional injuries from January 1, 2015 to December 31, 2019.Descriptive statistics were calculated for age, gender, season of injury, location of residence, education level of the child′s parents/guardians, injury etiology and outcome, and cost of treatment.Results:Of 1 379 cases, 894 children(64.8%) were boys and 485(35.2%) were girls.The majority of cases were 1-5 years old(61.6%, n=849). The top three causes of unintentional injuries were foreign bodies(38.1%, n=526), falls(27.0%, n=372), and burns(17.1%, n=236). Children′s unintentional injuries occurred most frequently during the summer(29.0%). More children came from rural locations(56.3%, n=777). Approximately half of the parents/guardians had attained an education level of junior high school or below(50.5%, n=696). There were 47 cases(3.4%) resulting in death or permanent injury and 292 cases(21.2%) resulting in disability.Children injured in traffic accidents had the longest average length of hospital stay [11(7, 18)d] and incurred the highest healthcare costs per case[11 130.32(5 389.69, 24 216.90)RMB]. Conclusion:Children′s unintentional injuries are concentrated among rural boys aged 1-5 years, foreign bodies are the most common cause of unintentional injuries.Children from families with low parental/guardian education levels may be at heightened risk of unintentional injuries.

Most of the CHD patients reveal string pulse, mainly due to damage of heart function, lowering of arterial compliance and increase of total peripheral resistance. The common pulse in patients of blood diseases reveal frequent, tiny, string and slippery characteristic, mostly due to the increase of compensatory pumping action of the heart, shortening of ejection time of the left heart, with better vessel compliance and hemorheology, low total peripheral resistance.