Objective Response surface methodology ( RSM ) was applied to optimize the ultrasonic extraction conditions for flavonoids from Coreopsis tinctoria Nutt. Methods The influence factors of ultrasonic extraction were evaluated using the Box-Behnken central component experiments and analyzed by RSM. Results The optimum extraction conditions were confirmed as follows:extraction time 30. 0 min, ratio of liquid to solid 21∶1, concentration of ethanol 60%. The yield of flavonoids under this condition was (4.65±0.036)% (n=3). Conclusion The flavonoids could be extracted with stability and higher yield from Coreopsis tinctoria Nutt under optimized conditions.

The improvement of women and children health,along with the growth in health needs,brings forth new challenges to maternal and children health care institutions.The dual demands of quantity and quality in maternal and children health services compel the institutions to improve capabilities under the current conditions,and more importantly,to further clarify the functional orientation which is the key issue for its development.This article is based on the analysis of the historical development and current situation of the maternal and children health care institutions,which sets up the functional orientation according with the rules and characteristics of maternal and children health services.The paper proposed a series of suggestions on its development,such as the health service admission system,appropriate staffing standards and the institution-construction standards.

The cDNA fragment of JEV prME gene was cloned into the baculovirus shuttle vector (bacmid) to construct a recombinant baculovirus vector, defined as AcBac-prME. Then the recombinant baculovirus Ac-prME was obtained by transfecting Sf9 cells with AcBac-prME. Western blot analysis and immunofluorescence results indicated that both prM and E proteins were efficiently expressed in Sf9 cells. Electron microscopy suggested that prME was assembled into JEV-VLPs. To further evaluate the potential of JEV-VLPs as vaccine, the mice were immunized with JEV-VLPs and then challenged with lethal JEV. The results of mice survival and pathological changes demonstrated that the JEV-VLPs performed complete protection against JEV-P3 strain and relieved pathological changes in the mice brain significant. This study suggest that JEV-VLPs would be a potential vaccine for Japanese encephalitis virus.
Animals ; Antibodies, Viral ; immunology ; Encephalitis Virus, Japanese ; genetics ; immunology ; Encephalitis, Japanese ; immunology ; prevention & control ; virology ; Humans ; Japanese Encephalitis Vaccines ; administration & dosage ; genetics ; immunology ; Mice ; Mice, Inbred BALB C ; Sf9 Cells ; Vaccination ; Vaccines, Virus-Like Particle ; administration & dosage ; genetics ; immunology ; Viral Envelope Proteins ; administration & dosage ; genetics ; immunology

Objective:To compare the preventive effects of different doses of esketamine on remifentanil-induced hyperalgesia(RIH)in the patients underwent thoracoscopic pnlmonary lobectomy,and to provide the basis for the multimodal analgesia and rapid postoperative recovery.Methods:The prospective,double-blind,parallel-designed randomized controlled trial(RCT)were conducted,and 107 patients who underwent visual-assisted thoracoscopic pulmonary lobectomy were included.The patients were randomly divided into normal control group,low dose of esketamine group,and high dose of esketamine group using random number methods.Except the patients who were eliminated and those who dropped out of the study,there were 31 patients in normal control group,33 patients in low dose of esketamine group,and 33 patients in high dose of esketamine group.The patients in low dose of esketamine group were given the intravenous injection of 0.25 mg·kg-1 esketamine(diluted to 5 mL)during anesthesia induction;the patients in high dose of esketamine group were given the intravenous injection of 0.50 mg·kg-1 esketamine(diluted to 5 mL),and the patients in normal control group were given 5 mL intravenous injection of saline.The mechanical pain thresholds of the non-dominant forearm skin and skin around the surgical incision at different time points,numeric rating scale(NRS)scores,Ramsay sedation scores,perioperative analgesic drug dosages,and the incidences of adverse reactions such as postoperative delirium,nausea,and vomiting of the patients in various groups were recorded.Results:Compared with normal control group,the mechanical pain thresholds around the surgical incision skin of the patients in low and high doses of esketamine groups were increased(P＜0.05);compared with low dose of esketamine group,the extubation time of the patients in high dose of esketamine group was increased(P＜0.05).Two minutes after anesthesia induction administration,compared with normal control group,the mean arterial pressure(MAP)and heart rate(HR)of the patients in low and high doses of esketamine groups were increased(P＜0.05),but there were no significant differences in the MAP and HR of the patients between low dose of esketamine and high dose of esketamine group(P＞0.05);compared with normal control group,the incidences of hallucinations and delirium among the patients in high dose of esketamine group were increased(P＜0.05),while there were no significant differences in the incidences of above adverse reactions in low dose of esketamine group(P＞0.05);compared with low dose of esketamine group,the incidences of hallucinations and delirium among the patients in high dose of esketamine group were increased(P＜0.05).Conclusion:Intravenous administration of esketamine with a dosage of 0.25 mg·kg-1 during anesthesia induction improves the postoperative mechanical pain threshold of the patients undergoing thoracoscopic pulmonary lobectomy,which exhibits effective prevention of RIH without an increase in incidences of adverse reactions during the perioperative period.

Objective:To analyze the prevalence of allergic rhinitis in Chinese children from 2001 to 2021, in order to provide data support for the prevention and treatment of allergic rhinitis in children.Methods:"Allergic rhinitis" "children" "adolescent" "infant" "prevalence" "epidemiology" were used in the main search terms. The combination of Mesh words and free words was adopted. CNKI, CBM, VIP, WanFang Data, PubMed, Web of Science, Embase and The Cochrane Library for publications between January 1, 2001 and December 31, 2021 were searched systemically and data were extracted from eligible studies by two independent reviewers. Supplementary collection was made by identifying retrospective references from the included literature. After study quality assessment, Meta analysis was completed using Stata 16.0 software.Results:A total of 20 cross-sectional studies were included, involving 54 886 cases. Meta analysis results showed that the overall prevalence of allergic rhinitis among the participants was 18.46% (95% CI:14.34%-22.59%). Subgroup analysis showed that the prevalence of allergic rhinitis from 2012 to 2021 (19.75%) was higher than that from 2001 to 2011 (14.81%), and the difference was statistically significant ( P<0.001). The prevalence of different regions from high to low was East China (22.77%), North China (20.82%), Northwest China (17.77%), Central China (16.62%), Southwest China (16.33%), Northeast China (16.16%) and South China (7.29%) respectively, the difference was statistically significant ( P<0.001). The prevalence of male (20.73%) was higher than that of female (16.34%), and the difference was statistically significant ( P<0.001). The prevalence of Han nationality(17.31%) was higher than that of ethnic minorities (15.93%), and the difference was statistically significant ( P<0.001). Conclusion:The prevalence of allergic rhinitis in Chinese children is high and the prevalence in children varies by publication year, region, sex and nationality.

Objective:To analyze the prevalence of allergic rhinitis in Chinese children from 2001 to 2021, in order to provide data support for the prevention and treatment of allergic rhinitis in children.Methods:"Allergic rhinitis" "children" "adolescent" "infant" "prevalence" "epidemiology" were used in the main search terms. The combination of Mesh words and free words was adopted. CNKI, CBM, VIP, WanFang Data, PubMed, Web of Science, Embase and The Cochrane Library for publications between January 1, 2001 and December 31, 2021 were searched systemically and data were extracted from eligible studies by two independent reviewers. Supplementary collection was made by identifying retrospective references from the included literature. After study quality assessment, Meta analysis was completed using Stata 16.0 software.Results:A total of 20 cross-sectional studies were included, involving 54 886 cases. Meta analysis results showed that the overall prevalence of allergic rhinitis among the participants was 18.46% (95% CI:14.34%-22.59%). Subgroup analysis showed that the prevalence of allergic rhinitis from 2012 to 2021 (19.75%) was higher than that from 2001 to 2011 (14.81%), and the difference was statistically significant ( P<0.001). The prevalence of different regions from high to low was East China (22.77%), North China (20.82%), Northwest China (17.77%), Central China (16.62%), Southwest China (16.33%), Northeast China (16.16%) and South China (7.29%) respectively, the difference was statistically significant ( P<0.001). The prevalence of male (20.73%) was higher than that of female (16.34%), and the difference was statistically significant ( P<0.001). The prevalence of Han nationality(17.31%) was higher than that of ethnic minorities (15.93%), and the difference was statistically significant ( P<0.001). Conclusion:The prevalence of allergic rhinitis in Chinese children is high and the prevalence in children varies by publication year, region, sex and nationality.

Objective To predict whether antiviral therapy is required in patients with chronic hepatitis B virus(HBV)infection and an age of≤30 years by establishing a noninvasive model,and to investigate the diagnostic value of this model.Methods A retrospective analysis was performed for the clinical data of 175 patients with chronic HBV infection who were admitted to Shenzhen Third People's Hospital from January 2017 to January 2023 and met the inclusion criteria,and according to the results of liver biopsy,they were divided into treatment group with 41 patients(with indications for antiviral therapy)and observation group with 134 patients(without indications for antiviral therapy).The two groups were analyzed in terms of the indicators including clinical data,imaging examinations,and serum biochemical parameters.The univariate and multivariate Logistic regression analyses were used to investigate the parameters affecting the indication for antiviral therapy,and different models for predicting the need for antiviral therapy were constructed based on related parameters.The receiver operating characteristic(ROC)curve was used to compare the diagnostic value of different models.The independent-samples t test was used for comparison of normally distributed continuous variables between groups,and the Mann-Whitney U rank sum test was used for comparison of non-normally distributed continuous variables between groups;the chi-square test or the Fisher's exact test was used for comparison of categorical data between groups.Results There were significant differences between the treatment group and the observation group in alanine aminotransferase,ferritin,total cholesterol(CHOL),triglyceride,platelet count,liver stiffness measured by sound touch elastography(STE),and procollagen Ⅲ N-terminal propeptide(PIIIP)(all P<0.05).The multivariate Logistic regression analysis showed that CHOL(odds ratio[OR]=0.4,95％confidence interval[CI]:0.2—1.0),STE(OR=1.5,95％CI:1.0—2.1),and PIIIP(OR=1.1,95％CI:1.0—1.1)were independent predictive factors for the indications for antiviral therapy.Model 1(STE+PIIIP+CHOL),model 2(STE+PIIIP),model 3(STE+CHOL),model 4(PIIIP+CHOL)had an area under the ROC curve of 0.908,0.848,0.725,and 0.725,respectively,while STE,PIIIP,and CHOL used alone had an AUC of 0.836,0.725,and 0.634,respectively,suggesting that model 1 had the largest AUC,with a specificity of 77.34％and a sensitivity of 96.36％,and had a significant difference compared with STE,PIIIP,CHOL,and the models 2,3,and 4(Z=0.21,3.08,3.06,3.23,0.89,and 0.88,all P<0.05).Conclusion The noninvasive model established based on CHOL,STE,and PIIIP has a good value in predicting the need for antiviral therapy in patients with chronic HBV infection and an age of≤30 years.

Objective To explore the effect of continuous nursing intervention on limb function and nursing quality after proximal femoral nail antirotation (PFNA) internal fixation for femoral intertrochanteric fracture in the elderly. Methods From February, 2017 to November, 2018, 100 elderly patients with femoral intertrochanteric fracture who underwent PFNA internal fixation in our hospital were randomly divided into control group (n = 50) and observation group (n = 50), who accepted routine nursing and continuous nursing respectively for three months. They were assessed with Harris score and visual analogue scale for pain (VAS) before and after the intervention. The postoperative nursing effect was compared. Results The Harris score increased in both groups after the intervention (t > 45.98, P < 0.001), and increased more in the observation group than in the control group (t = 15.03, P < 0.001). The VAS score decreased in both groups after the intervention (t > 16.33, P < 0.001), and decreased more in the observation group than in the control group (t = 9.749, P < 0.001). The effect of nursing was better in the observation group than in the control group (Z = -2.272, P = 0.023). Conclusion Continuous nursing intervention can significantly improve the limb function and nursing satisfaction of elderly patients with femoral intertrochanteric fracture after PFNA.