Objective: To evaluate the incremental vaccine effectiveness (VE) of two dose of the mumps containing vaccine (MuCV) in chidren, so as to provide a basis for optimizing mumps immunization strategies. Methods: A 1∶2 frequency matched case-control study was conducted by using reported mumps cases in childcare centers or schools from Lu an, Hefei, Ma anshan and Huainan cities of Anhui Province from September 1, 2023 to June 30, 2024, as a case group(383 cases). And healthy children in the same classroom were selected as a control group(766 cases). The MuCV immunization histories of participants were collected to estimate the incremental VE of the second dose of MuCV against mumps. Group comparisons were performed using the Chi square test or t-test. For matched case-control pairs, the Cox regression model was employed to calculate the odds ratio (OR) with 95% confidence interval (CI) for two dose MuCV vaccination and to estimate the incremental vaccine effectiveness (VE). Results: There were no statistically significant differences between the case and control groups regarding gender, age, dosage of MuCV vaccination and the time interval since the last dose vaccination( χ 2/t=0.05, 0.20, 0.94, -0.02, P >0.05). The proportions of the case and control groups vaccinated with two doses of MuCV were 26.63% and 29.37%, respectively, and the overall incremental VE of the second dose of MuCV was 40.73% (95% CI=3.03%-63.77%, P <0.05). Subgroup analyses revealed that the incremental VE for children with a period of ≥1 year between the two doses of MuCV was 54.13% (95% CI=1.90%-78.56%, P <0.05), while for children with a period of <1 year, it was 30.63% (95% CI=-28.59%-62.58%, P >0.05). The incremental VE of the second dose of MuCV was 30.36% (95% CI=-25.95%-61.50%, P >0.05) in kindergarten children and 66.73% (95% CI=14.92%-86.99%, P <0.05) in elementary and secondary school students. The incremental VE was 28.78% (95% CI=-27.46%-60.21%, P >0.05) within five years of the last dose of MuCV vaccination and 66.07% (95% CI=-41.56%-91.87%, P >0.05) for vaccinations administered beyond five years. Conclusions The second dose of MuCV may offer additional protection for children; however, extending the interval between two dose of MuCV (<1 year) has shown limited incremental protective effects. Therefore, it is crucial to consider optimizing current immunization strategies for mumps.

Objective To evaluate the safety and efficacy of CT-guided percutaneous transhepatic gallbladder drainage(PTGBD)in treatment of high-risk acute cholecystitis(AC)patients.Methods CT-guided PTGBD was performed in 29 patients with high-risk AC.The therapeutic results were evaluated by comparing the preoperation and postoperation clinical manifestations and laboratory results.Results The implantation of PTGBD catheter was successfully accomplished with single procedure in all patients.Complica-tions occurred in 2 cases,including abdominal pain in 1 case and a small amount of gallbladder bleeding in 1 case,and the incidence of complications was 6.9%.Compared with preoperation,the pain number rating scale(NRS)score,temperature(T),white blood cell count(WBC),C-reactive protein(CRP),total bilirubin(TBIL),alanine aminotransferase(ALT)and aspartate aminotransferase(AST)were significantly decreased 3 days after PTGBD(P<0.001).Except for 1 case of choledocholithiasis with continuous abdominal pain after PTGBD,the postoperation symptoms of the other patients were significantly relieved.Followed up for 3 months,2 cases of calculous AC recurred after PTGBD,and the recurrence rate of cholecystitis was 25.0%.Conclusion For high-risk AC,the CT-guided PTGBD is a safe and effective treatment method,and it can remarkably relieve the clinical symptoms.Patients with calculous AC have higher risk of recurrence and might benefit from definitive cholecystectomy.

Objective To analyze the effect of baseline cytokines in aqueous humor in predicting the improvement of the central macular thickness(CMT)and best corrected visual acuity(BCVA)of patients with macular edema secondary to retinal vein obstruction(RVO-ME)after anti-vascular endothelial growth factor(VEGF)treatment for 3 months.Meth-ods Totally 30 eyes of 30 patients initially diagnosed with RVO-ME in the Affiliated Eye Hospital of Nanjing Medical Uni-versity from October 2021 to January 2023 were enrolled.Aqueous humor was collected by anterior chamber puncture be-fore the anti-VEGF drug injection.The levels of 11 cytokines in aqueous humor,including VEGF,intercellular adhesion molecule(ICAM)-1,interleukins(ILs)and interferon-γ(IFN-γ),were measured by Luminex xMAP technology.The cor-relation between baseline aqueous humor cytokine levels and CMT,BCVA(logMAR)as well as their changes(difference between baseline and anti-VEGF treatment for 3 months)in RVO-ME patients was analyzed;the correlation between CMT and BCVA(logMAR)was analyzed at baseline and 3 months after anti-VEGF treatment.CMT and BCVA responders were defined as patients with 50％or more reduction in CMT and BCVA(logMAR)from baseline to the third month.A Logistic regression model was used to analyze the relationship between baseline aqueous humor cytokines and RVO-ME patients be-coming CMT or BCVA responders after 3 months of anti-VEGF treatment.Results Compared with baseline,the CMT sig-nificantly decreased and BCVA significantly improved in RVO-ME patients after anti-VEGF treatment for 3 months(both P＜0.001).The CMT was positively correlated with BCVA(logMAR)of RVO-ME patients at baseline and after anti-VEGF treatment for 3 months(P=0.026,0.002).At baseline,the levels of VEGF and IL-8 of RVO-ME patients were positively correlated with CMT(P=0.032,0.035);the levels of IL-6 and IL-8 were positively correlated with BCVA(logMAR)(P=0.018,0.002).The baseline IL-8 level in RVO-ME patients was negatively associated with the change in CMT(P=0.024).Logistic regression analysis showed that elevated baseline ICAM-1 level could increase the risk of RVO-ME patients becom-ing BCVA non-responders after 3 months of anti-VEGF treatment(P=0.023).Conclusion Baseline IL-8 and ICAM-1 may be predictors of CMT and BCVA improvement after anti-VEGF treatment of RVO-ME.

Objective To investigate the clinical effect of apical microsurgery combined with guided bone regeneration(GBR)on refractory apical periodontitis and masticatory function.Methods A total of 82 patients with refractory apical periodontitis admitted to our hospital from June 2019 to September 2021 were selected as the study subjects,and they were divided into the control group and the com-bined group according to the random number table,with 41 cases in each group.The control group was treated with apical microsurgery,and the combined group was treated with apical microsurgery combined with GBR.The clinical efficacy,masticatory function and the levels of bone absorption markers[Wnt3a,osteoprotegerin(OPG),receptor activator of nuclear factor-κB ligand(RANKL)]of patients in the two groups were compared.Results The total effective rate of the combined group(100%)was higher than that of the control group(85.37%),the difference was statistically significant(P<0.05).The masticatory efficiency and bite force of patients in both groups increased gradually 3,6 and 12 months after operation(P<0.05),which were higher in the combined group compared with the control group(P<0.05).The tooth mobility of patients in both groups decreased gradually 3,6 and 12 months after operation,and the tooth mobility of patients 3 and 6 months after operation in the combined group were lower than those in the control group(P<0.05).The levels of Wnt3a and OPG of patients 1 week after operation in both groups increased,which were higher in the combined group compared with the control group(P<0.05).The RANKL level of gingival crevicular fluid of patients 1 week after operation in both groups decreased,and which was lower in the combined group compared with the control group(P<0.05).Conclusion The microapical surgery combined with GBR is effective for refractory apical periodontitis,which can effectively inhibit bone resorption,and improve masticatory function.

AIM To establish an HPLC method for the simultaneous content determination of gallic acid,protocatechuic acid,morroniside,loganin,sweroside,paeoniflorin,hypericin,astragalin,salvianolic acid B,salvianolic acid A,epimedin C and icariin in Bushen Huoxue Sanjie Capsules.METHODS The analysis was performed on a 30℃thermostatic Agilent 5 TC-C18 column(250 mm×4.6 mm,5 μm),with the mobile phase comprising of acetonitrile-0.1%phosphoric acid flowing at 1.0 mL/min in a gradient elution manner,and the detection wavelength was set at 240 nm.RESULTS Twelve constituents showed good linear relationships within their own ranges(r≥0.999 8),whose average recoveries were 97.11%-101.14%with the RSDs of 0.60%-2.65%.CONCLUSION This simple,accurate and reproducible method can be used for the quality control of Bushen Huoxue Sanjie Capsules.

Objective:To examine the satisfaction and teaching effectiveness of Health Statistics among students majoring in Public Utility Administration,and to provide valuable insights for optimizing current teaching practices and enhancing teaching effectiveness.Methods:A survey questionnaire,specifically designed for this study,was administered to 56 students of grade 2021 majoring in Public Utility Administration in our school.The questionnaire covered topics such as the difficulty of teaching content,learning satisfaction,and the Student Evaluation of Educational Quality(SEEQ)scale.Results:Non-parametric testing was considered the most difficult knowledge point,and male students found statistical inference of quantitative data was the most challenging,while female students found non-parametric testing was the most difficult.In terms of satisfaction,the highest score was obtained for pre-class review,while the lowest score was given to improving learning interest in Rain Classroom.The overall score for teaching effectiveness,as measured by SEEQ,was good across seven dimensions.Teaching enthusiasm received the highest score(4.40±0.43),while homework volume received the lowest score(3.23±0.37).With the exception of homework grading,satisfaction was positively correlated with most dimensions of teaching effectiveness evaluation.Conclusions:Despite perceiving the course as generally difficult,students expressed high satisfaction and overall positive evaluation of teaching effectiveness.Therefore,it is recommended to actively explore new teaching reforms to cultivate well-rounded applied talents for public utilities.

Objective: To explore the effects of protein powder on the bioavailability of perfluoroalkyl substances (PFASs) in blood and kidneys of rats and renal function change. Methods: Twenty-four rats of the SD strain were randomly divided into the negative control group, PFASs group and protein powder group, with 8 rats (half males and half females) in each group. PFASs included 13 perfluorocarboxylic acids (PFCAs) and 8 perfluorosulfonic acids (PFSAs), and the mixture was used as a test subject for intervention. The rats in the negative control group were given deionized water at doses of 20 mL/kg·bw, in the PFASs group were given 5 mL/kg·bw of PFASs mixtures and 15 mL/kg·bw of deionized water, and in the protein powder group were given 5 mL/kg·bw of PFASs mixtures and 15 mL/kg·bw of protein powder (0.258 g/mL). After intervention for 28 successive days, body weight and kidney mass were weighed, and the kidney volume index was calculated. Serum creatinine and blood urea nitrogen were detected by an automatic biochemical analyzer. The PFCAs, PFSAs and PFASs contents were quantified in blood and kidney using ultra-high performance liquid chromatography-electrospray tandem mass spectrometry, and the bioavailability was estimated. Results: There was no significant differences in kidney mass, kidney volume index, serum creatinine and blood urea nitrogen among the negative control group, PFASs group and protein powder group (all P>0.05). The bioavailability of blood PFCAs, PFSAs and PFASs in the protein powder group was not significantly different from the PFASs group (all P>0.05). Compared with the PFASs group, the bioavailability of PFCAs, PFSAs and PFASs were significantly increased in kidneys of male rats in the protein powder group (all P<0.05), while were not significant different in those of female rats (all P>0.05). Conclusion Protein powder at the dose of this study can significantly improve the bioavailability of PFASs in kidneys of male rats, while there no obvious effects on the bioavailability of blood PFASs and renal function.

Improving the reproducibility of biomedical research results is a major challenge. Transparent and accurate reporting of the research process enables readers to evaluate the reliability of the research results and further explore the experiment by repeating it or building upon its findings. The ARRIVE 2.0 guidelines, released in 2019 by the UK National Centre for the Replacement, Refinement and Reduction of Animals in Research (NC3Rs), provide a checklist that is applicable to any in vivo animal research report. These guidelines aim to improve the standardization of experimental design, implementation, and reporting, as well as enhance the reliability, repeatability, and clinical translation of animal experimental results. The use of the ARRIVE 2.0 guidelines not only enriches the details of animal experimental research reports, ensuring that information on animal experimental results is fully evaluated and utilized, but also enables readers to understand the content expressed by the author accurately and clearly, promoting the transparency and completeness of the fundamental research review process. At present, the ARRIVE 2.0 guidelines have been widely adopted by international biomedical journals. This article is based on the best practices following the ARRIVE 2.0 guidelines in international journals, and it interprets, explains, and elaborates in Chinese the fifth part of the comprehensive version of the ARRIVE 2.0 guidelines published in PLoS Biology in 2020 (the original text can be found at https://arriveguidelines.org). This section includes the items 6-11 of Recommended 11 section, covering "Animal Care and Monitoring", "Interpretation/Scientific Implications", "Generalisability/Translation", "Protocol Registration", "Data Access" and "Declaration of Interests". Its aim is to promote a comprehensive understanding and use of the ARRIVE 2.0 guidelines among domestic researchers, to enhance the standardization of experimental animal research and reporting, and to promote high-quality development of experimental animal sciences and comparative medicine research in China.

Background The high-quality development of manufacturing in China has spurred industrial transformation and upgrading, placing higher demands on the skills of employees in the electronic manufacturing industry. This situation may induce psychological health problems such as job burnout and depressive symptoms in the employees, and also lead to insomnia, which has become a public health problem that urgently needs attention and solution. Objective To investigate the relationship between job burnout, depressive symptoms, and insomnia among employees in the electronic manufacturing industry. Methods A total of 3034 employees from four electronic manufacturing companies in Beijing City, Shanghai City, and Guangdong Province were selected using judgment sampling from September to November 2019. The Maslach Burnout Inventory-General Survey, Patient Health Questionnaire-9, and Self-Administered Sleep Questionnaire were used to collect data. The correlation between job burnout, depressive symptoms, and insomnia was evaluated by hierarchical regression. Results A total of 3034 survey questionnaires were distributed, and 2614 valid questionnaires were collected, with a response effectiveness rate of 86.2%. The reporting rates of job burnout, depressive symptoms, and insomnia among employees in the electronic manufacturing industry were 47.2%, 19.5%, and 29.1%, respectively. The reporting rates of insomnia of employees in the job burnout group and depressive symptoms group were higher than those in the non-job burnout group and non-depressive symptoms group (35.3% vs. 23.6%, 47.2% vs. 24.7%, P＜0.001). The results of hierarchical regression showed that job burnout explained 2.8% of the variation of insomnia (P<0.001), and the inclusion of depressive symptoms explained 1.2% of the variation of insomnia (P<0.001). Conclusion Job burnout and depressive symptoms could both affect insomnia of employees in the electronic manufacturing industry.

Objective:To establish a method for the determination of triclocarban (TCC) and triclosan (TCS) in urine by ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) after purification by QuEChERS.Methods:In May 2022, urine samples were extracted by acetonitrile, purified by QuEChERS, separated by Waters Acquity UPLC BEH C18 column (100 mm×2.1 mm, 1.7 μm), and eluated with water-acetonitrile as mobile phase gradient at a flow rate of 0.3 ml/min. The detection was conducted in negative ion mode (ESI -) and multiple reaction monitoring (MRM) scanning, it was quantified with a internal standard method, and the methodology was verified. Results:The linear ranges of TCC and TCS were 0.5-100.0 μg/L and 1.0-100.0 μg/L, and the correlation coefficients were 0.9997 and 0.9991, respectively. The limits of detection and quantitation of TCC and TCS were 0.17 and 0.33 μg/L, and 0.5 and 1.0 μg/L, respectively. The recoveries of TCC and TCS were 100.1%-102.8% and 96.7%-108.6%, and the relative standard deviations were 4.9%-6.7% and 4.1%-8.3%, respectively, at 2.0, 10.0 and 80.0 μg/L.Conclusion:QuEChERS-UPLC-MS/MS method is simple, rapid, sensitive and reproducible, and can be used for rapid and accurate simultaneous detection of TCC and TCS exposure levels in occupational population.