Aim To study the inhibitory and apoptosis-inducing effects of aspisol on proliferation of B16 melanoma in vitro and in vivo. Methods The effect of aspisol on the proliferation of B16 cells was analyzed by MTT assay; its effect on cell apoptosis was measured by flow cytometry. The suspension of melanoma cells was injected subcutaneously into forelimb axillas of C57BL/6J mice to establish xenograft models. From the next day, the mice received intraperitoneal injection of aspisol in different concentrations once a day for 28 days; the mice received injection of dacarbazine (DTIC) were used as positive controls,and received injection of normal saline (NS) were used as negative controls. The inhibition rate of tumor growth was calculated .The apoptosis rate was detected by TUNEL assay. The expression of Survivin and C-erbB-2 was detected by immunohistochemistry. Results Aspisol inhibited the proliferation of B16 cells, with the inhibition rate up to (68.78?1.27)%, and induced the apoptosis with the highest apoptosis rate up to 15.8%.The inhibition rate of tumor growth was 15.0% in 200 mg?kg-1 aspisol group, 32.3% in 400 mg?kg-1 aspisol group, 49.4% in 800 mg?kg-1 aspisol group,and 51.4% in 40 mg?kg-1 DTIC group. Typical apoptotic morphologic changes were seen in the 4 groups. Survivin and C-erbB-2 expression was significantly lower in aspisol groups than in NS group. Conclusion Aspisol could inhibit proliferation and induce apoptosis of B16 melanoma cells in vitro and in vivo, which may be correlated to down-regulation of Survivin and C-erbB-2.

Objective To comprehend etiology and clinical manifestation changes of infant pneumonia in this locality.Methods Indirect immunofluorescence (IIF) assay was applied in children with acute pneumonia to detect serum 11 kinds of viruses[respiratory syncytial virus (RSV),adenovirus (ADV),influenza virus (IFV-A+B),parain fluenza virus(PIV14) ,coxsackie B,virus(CB1V),Coxsackie A7 virus (CA7V) ,ECHO virus]specific antibody IgM,according to the serum virus-specific IgM positive,C-reactive protein(CRP)<8mg/L and no other pathogenic infection and laboratory evidence for the conditions of 436 cases detected in children with pneumonia.Results Detected a total 125 cases of antibody-positive,the positive detection rate is 37.99%.Of which 103 cases of single virus infection .accounting for 82.4% ,22 cases of mixed infection,accounting for 17.6%.RSV infection on top of the list followed by the rest of IFV,ADV and PIV.Infants of different ages,different seasons of the different types of virus susceptibility.Conclusion Pneumonia in infants were caused by pathogenic bacteria in addition to the virus of a wide range,and the incidence of age,the peak seasons and the clinical manifestations were vary.From an early stage of infection pathogen detection,clearing pathogen type,making the correct diagnosis of pneumonia in the treatment of infants had an important guiding significance.

Background and purpose:Many studies indicate that nonsteroidal anti-inflammatory drugs(NSAIDs) may inhibit cancer growth.However,the molecular mechanisms may involve different pathway and still remain unclear.The aim of this experiment was to investigate the influence of aspisol against breast cancer lines,including MDA-MB-231(estrogen receptor-negative),MCF-7(estrogen receptor-positive),and reveal the potential signaling pathway mechanism of aspisol effect on breast cancer lines.Methods:MDA-MB-231 and MCF-7 human breast cancer cell lines were treated with aspisol in vitro.Cell proliferation was evaluated by MTT assay and rate of apoptosis were determined by flow cytometry.Extracellular signal regulated kinase(ERK),phosphor-ERK(P-ERK) protein expressed in breast cancer cell lines were analyzed by Western blot.Results:①The results of MTT assay demonstrated that the growth of MDA-MB-231,MCF-7 cells were inhibited by aspisol in a time-and dose-dependent fashion(P0.05).Conclusions:aspisol inhibits proliferation and induces apoptosis not only in ER-positive but also in ER-negative breast cancer cells.The mechanism may relate to ERK signal pathway.

Objective To observe the effects of lycopene on fibrinolytic activity and nitric oxide in atherosclerosis rabbits. Methods 30 New Zealand rabbits were randomly divided into three groups. They were individually housed in metal cages. Throughout the experimental period, they were given restricted amounts of food. Control group was fed with normal diet,model group was fed with 1% cholesterol,10% lard and 89% normal diet, lycopene group was fed with 1% cholesterol,10% lard and normal diet plus 6% lycopene.At the time of the first day and the 8th week, blood samples were drawn from ear edge vein of rabbits. The activity and content of plashaa tissue type plasminogen activator(t-PA)and plasminogen activator inhibitor(PAI-1)were detected. The levels of serum Nitric oxide (NO)were determined.At the end of the study, the plaque areas were measured. SPSS 10.0 software was used to evaluate the differences among the three groups. Results Compared with control group, atherosclerosis rabbits had lower content and activity of t-PA, higher content and activity of PAI-1 and lower content of NO. Compared with model group, lycopene group had no significant difference about the content and activity of tPA and PAI-1.But lycopen increased the levels of serum NO, significantly diminished the area of lipid plaque. Conclusions The experimental results suggested that lycopene had antiatherogenic effects. The possible mechanisms might be that lycopene could decrease lipid peroxidation injure, maintain the concentration of NO and protect vascular endothelium. The antiatherogenic effects of lycopene had no correlation with the fibrinolytic activity.

Objective To study the apoptotic induction of Aspisol on melanoma A375 cells.Methods The growth inhibition effect of Aspisol on A375 cells was evaluated by MTY assay.Morphological assay was observed by inverted microscope.Early apoptofic rate in A375 cells Was anyzed by flow cytometry.Results The results of MTT assay demonstrated that the growth of A375 cells was inhibited by Aspisol in a time-and concentration-dependence (P＜0.01).FCM analysis showed that Aspisol could markedly induce apeptosis;the early apoptotie rate of A375 cells exposed to different concentrations of Aspisol for 24 h were significant differences(P＜0.05)compared with control group.Conclusion Aspisol could inhibit proliferation and induce apoptosis of A375 cells.

Objective To explore the application of transcatheter arterial chemoembolization (TACE) combined with selective portal vein embolization (SPVE ) in two-stage hepatectomy of hepatocellular carcinoma (HCC).Methods From September 2010 to September 2013,a total of 107 patients with HCC in the right liver lobe who were not suitable for one stage hepatectomy received TACE or TACE combined with SPVE treatment were enrolled.Among them,55 received TACE therapy and 52 accepted TACE combined with SPVE treatment.The technique success rate,complication,adverse reactions,the volume change of each liver lobe and the rate of hepatectomy of HCC were observed.Chi-square test was used for numerical data comparison and Student′s t test for measurement data.Results TACE or TACE combined with SPVE therapy was successfully applied in all the 107 patients,the technique success rate was 100%.During treatment period,no complications such as ectopic embolization, liver function failure,puncture tract bleeding,gastrointestinal bleeding,bile leakage and hepatic abscess were observed.After treatment,the adverse reactions included liver function impairment,pain in hepatic region,fever,nausea and vomiting.Four weeks after the treatment,the volumes of tumor and right liver lobe decreased to certain degree in patients with HCC of both TACE group and TACE combined with SPVE group.The volume of left liver lobe in TACE group had no obvious change,while remarkably increased in TACE combined with SPVE group.The pre-treatment residual liver volume (RLV)of TACE group and TACE combined with SPVE group was (404.0 ± 46.3 )cm3 and (393.9 ± 65 .7 )cm3 , respectively,and the difference was not statistically significant (t=0.927,P =0.356).Four weeks after the treatment,RLV was (415.4 ±45.7 )cm3 and (567.3 ±88.7 )cm3 ,respectively,and the difference was statistically significant (t= -11 .219,P <0.05).Patients were followed up for three to six months,the rates of hepatectomy were 38.2%(21/55)and 86.5 %(45/52)in TACE group and TACE combined with SPVE group,and the difference was statistically significant (χ2 =26.440,P <0.01 ).Conclusion For patients with HCC not suitable for one stage hepatectomy,the treatment of TACE combined with SPVE before operation could effectively control the growth of the tumor,decrease the volume of tumor,increase RLV,and then increase the rate of two-stage hepatectomy.

Objective To evaluate the safety and clinical short-term efficacy of interventional emboliz-ation with hepasphere-loaded microspheres in treating inoperable hepatocellular carcinomas. Methods A total of 15 patients with unresectable hepatocellular carcinoma underwent transcatheter arterial chemoembolization ( TACE ) using hepasphere-loaded microspheres as embolic agent . The clinical data , imaging follow-up materials, complications of interventional treatment, prognosis, etc. were summarized and analyzed. The results were evaluated with modified response evaluation criteria in solid tumors (mRECIST); monthly follow-up was made for all patients. A total of 23 TACE procedures were performed in 15 patients. Results The following-up period ranged from 6 months to 15 months , the median follow-up time being 10 months . According to mRECIST, the 3-month objective response rate (CR+PR) was 73.3% and disease control rate (CR+PR+SD) was 93.3%;the 6-month objective response rate (CR+PR) was 73.3%and the disease control rate (CR+PR+SD) was 86.7%. No severe complications, such as bile leak complicated by infection, liver abscess, abdominal hemorrhage, bleeding due to tumor rupture, gastrointestinal bleeding, etc. occurred in all patients . Conclusion In treating unresectable hepatocellular carcinomas , TACE using newly-developed hepasphere microspheres carries satisfactory clinical short-term efficacy and safety, although thelog-term results need to be further investigated with larger sample trial.

Objective To summarize the brain protection application experiences of combined internal and external blood shunt technologies for the in-situ three-fenestration revascularization of aortic arch.Methods From Feb 2017 to Jun 2018,8 patients with aortic arch leisons were treated by the in-situ three-fenestration techniques,including 3 aortic dissection,2 aortic aneurysm,3 postoperative TEVAR patients.We adopt the method of internal and external blood shunt technologies for brain protection using the vascular sheath for fenestration combined with carotid shunt tube skills,and using TCD to monitor the blood flow of brain.Results All operations completed successfully,and TCD showed no significant cerebral ischemia when aortic stent was used to cover the three branches of the aorta.The mean time of brain protection was (17.62 ± 6.87) minutes.One patient developed transient cerebral ischemia after surgery,and another one developed cerebral infarction.Conclusions The brain protection strategy of internal bypass combined with external converter technology maintain the brain blood flow,while is simple and feasible,it cannot completely avoid neurological complications.

Objective:To analyze the impact of COVID-19 epidemic on syphilis case reporting in China, and provide evidence to evaluate the epidemic situation of syphilis and strengthen the prevention and control of syphilis during COVID-19 epidemic.Methods:The data were collected from the National Notifiable Infectious Disease Reporting System of China Information System for Disease Control and Prevention, National STD Management Information System, and the "nCov2019" R package of github website. The changes of reported cases of syphilis before and during COVID-19 epidemic in China were analyzed. Joinpoint regression model was established by using the reported case number of syphilis from 2010 to 2018, the data in 2019 was used for validation, and the number of syphilis cases in 2020 and 2021 was predicted. The impact of COVID-19 epidemic on the number of syphilis cases was evaluated with calculating the percentage error (PE) between actual number and predicted number of syphilis cases reported.The correlation between reported cases of syphilis and COVID-19 was analyzed by Spearman's correlation analysis. The softwares of Joinpoint 4.9.1.0 and SPSS 18.0 were used for statistical analysis.Results:In 2020 and 2021, the reported cases of syphilis in China decreased significantly by 13.32% and 10.41%, respectively, compared with 2019 (before COVID-19 epidemic), and the reported cases of syphilis in 2021 increased by 3.36% compared with 2020. The reported cases of syphilis in 2020 and 2021 decreased by 17.95% and 20.41%, respectively, compared with predicted numbers. From January to March 2020, the reported monthly case number of syphilis was completely negatively correlated with the confirmed case number of COVID-19 ( r s=-1.00, P<0.001). In the provinces with different scales of COVID-19 epidemic, there was also a negative correlation between the monthly reported case number of syphilis and confirmed case number of COVID-19 (all P<0.05). Conclusions:In China, the change of reported cases of syphilis was closely associated with COVID-19 epidemic in 2020 and 2021. Due to the influence of COVID-19 epidemic, the number of reported cases of syphilis decreased significantly, but it should not be thought that syphilis incidence will become a decline trend in the future. It is necessary to carefully and scientifically assess the changes in syphilis epidemic.

Objective This study aims to provide craniofacial features and incisor position prediction models among esthetics population after orthodontic treatment.Methods A total of 338 patients with esthetic profiles were se-lected from 1 055 post-orthodontic adults based on inclusion and exclusion criteria and scored by five dental students.Mean values of cephalometric measurement were demonstrated with gender and sagittal skeletal pattern(ANB)differ-ences assessed by generalized estimating equation.Correlations among age,skeletal,and soft tissue variables in differ-ent genders were determined.Multivariate analysis was used to assess the influence of skeletal and soft tissue variables on orthodontic incisor position.Results Within the esthetic cohort after orthodontic treatment,gender differences ex-isted in cranial and mandibular length,mandibular rotation,protrusion of pogonion,inclination of maxillary incisors,upper lip thickness,lower 1/3 face height,and nose protrusion.However,in class Ⅰ malocclusion,the development of the chin showed no significance,whereas the protrusion of the lower lip significantly differed between genders,with less protrusion in males.In males,the protrusion of lip and chin varied among groups,with thinner basic upper lip thick-ness of class Ⅱ than class Ⅰ and greater lower lip height of class Ⅲ than class Ⅰ.In females,the protrusion and height of the upper lip and chin varied in groups,with thicker basic upper lip thickness of class Ⅲ than class Ⅰ.Upper lip thickness,female basic upper lip thickness,and female lower lip height were correlated with age.The protrusion of the upper lip was mainly correlated with posterior cranial base,mandibular body length,ANB in male and SNA,ANB,sag-ittal maxillary length,mandibular rotation,and protrusion of pogonion in female.The protrusion of the lower lip in males was mainly correlated with ramus height,mandibular rotation,protrusion of pogonion in male and ANB,mandib-ular rotation,and protrusion of pogonion in females.After employing skeletal variables to fit dental parameters,optimal results were achieved in male IMPA(adjusted R2=0.712)and female G Vert-U1(adjusted R2=0.795).After employing skeletal and soft tissue variables simultaneously,optimal results were achieved in male and female G Vert-U1,which was mainly influenced by the protrusion of the chin and nasal base in males(adjusted R2=0.836)and the protrusion of the nasal base as well as ANB in females(adjusted R2=0.842).Conclusion This study demonstrated the craniofacial features of esthetics population after orthodontic treatment and revealed the correlation of gender,age,skeleton,and soft tissues to provide reliable prediction models for aesthetic orthodontic incisor position.