OBJECTIVES: To determine the pharmacological impact of hesperidin, the main component of Citri Reticulatae Pericarpium, on depressive behavior and elucidate the mechanism by which hesperidin treats depression, focusing on the gut-brain axis. METHODS: Fifty-four Sprague Dawley male rats were randomly allocated to 6 groups using a random number table, including control, model, hesperidin, probiotics, fluoxetine, and Citri Reticulatae Pericarpium groups. Except for the control group, rats in the remaining 5 groups were challenged with chronic unpredictable mild stress (CUMS) for 21 days and housed in single cages. The sucrose preference test (SPT), immobility time in the forced swim test (FST), and number in the open field test (OFT) were performed to measure the behavioral changes in the rats. Enzyme-linked immunosorbent assay was used to determine the levels of 5-hydroxytryptamine (5-HT) and brain-derived neurotrophic factor (BDNF) in brain tissue, and the histopathology was performed to evaluate the changes of colon tissue, together with sequencing of the V3-V4 regions of 16S rRNA gene on feces to explore the changes of intestinal flora in the rats. RESULTS: Compared to the control group, the rats in the model group showed notable reductions in body weight, SPF, and number in OFT (P<0.01). Hesperidin was found to ameliorate depression induced by CUMS, as seen by improvements in body weight, SPT, immobility time in FST, and number in OFT (P<0.05 or P<0.01). Regarding neurotransmitters, it was found that at a dose of 50 mg/kg hesperidin treatment upregulated the levels of 5-HT and BDNF in depressed rats (P<0.05). Compared to the control group, the colon tissue of the model group exhibited greater inflammatory cell infiltration, with markedly reduced numbers of goblet cells and crypts and were significantly improved following treatment with hesperidin. Simultaneously, the administration of hesperidin demonstrated a positive impact on the gut microbiome of rats treated with CUMS, such as Shannon index increased and Simpson index decreased (P<0.01), while the abundance of Pseudomonadota and Bacteroidota increased in the hesperidin-treated group (P<0.05). CONCLUSION The mechanism responsible for the beneficial effects of hesperidin on depressive behavior in rats may be related to inhibition of the expressions of BDNF and 5-HT and preservation of the gut microbiota.
Animals ; Hesperidin/therapeutic use* ; Rats, Sprague-Dawley ; Depression/drug therapy* ; Male ; Stress, Psychological/drug therapy* ; Brain/metabolism* ; Brain-Derived Neurotrophic Factor/metabolism* ; Serotonin/metabolism* ; Gastrointestinal Microbiome/drug effects* ; Behavior, Animal/drug effects* ; Rats ; Brain-Gut Axis/drug effects* ; Chronic Disease ; Colon/drug effects*

Objective:To explore the clinical characteristics and the treatment strategies of surgery and post-operative chemotherapy of ovarian Sertoli-Leydig cell tumors.Methods:A total of 18 patients who underwent sur-gical treatment in Department of Gynecology,Peking University Third Hospital from January 2003 to June 2022 and were pathologically diagnosed with ovarian Sertoli-Leydig cell tumors were selected as the research subjects.The clinical manifestations,auxiliary examinations,surgical and pathological diagnoses,adjuvant treatments and fol-low-up of the included patients were retrospectively analyzed.Results:The age of onset ranged from 19 to 59 years old,with a median age of 24 years old.Among them,12 cases(66.7％)were under40 years old.11 cases(61.1％)showed abnormal symptoms of sex hormones,such as hyperandrogenism and menstrual disorders,and 6 cases(33.3％)sought medical attention for acute abdomen.Preoperative ultrasound indicated a single non-sim-ple mass in the pelvic cavity in 17 cases,during the operation,all tumors were found to originate from one ovary,and all patients under the age of 40(12 cases)underwent adnexectomy on the affected side to preserve fertility.The accuracy of intraoperative frozen pathology was 31.3％(5/16).Among the 18 patients,11 cases were in stage ⅠA and 7 in stage ⅠC,1 case was of well-differentiated type,10 cases of moderate differentiation and 7 ca-ses of poorly differentiated type,3 cases had heterogeneous components.12 cases received adjuvant chemother-apy after surgery.After initial treatment,follow-up was conducted for 4 to 230 months,with a median time of 70.5 months.One case of high-grade sarcoma with heterologous components experienced multiple recurrences,the others had no recurrence.Conclusions:Most cases of ovarian Sertoli-Leydig cell tumors are diagnosed as stageⅠ.For young patients,adnexectomy on the affected side can be performed to preserve fertility and have a good prognosis.But if the tumor contains heterologous components as high-grade sarcoma,it indicates a poor prognosis.

Cemental tear is a rare and indetectable condition unless obvious clinical signs present with the involvement of surrounding periodontal and periapical tissues. Due to its clinical manifestations similar to common dental issues, such as vertical root fracture, primary endodontic diseases, and periodontal diseases, as well as the low awareness of cemental tear for clinicians, misdiagnosis often occurs. The critical principle for cemental tear treatment is to remove torn fragments, and overlooking fragments leads to futile therapy, which could deteriorate the conditions of the affected teeth. Therefore, accurate diagnosis and subsequent appropriate interventions are vital for managing cemental tear. Novel diagnostic tools, including cone-beam computed tomography (CBCT), microscopes, and enamel matrix derivatives, have improved early detection and management, enhancing tooth retention. The implementation of standardized diagnostic criteria and treatment protocols, combined with improved clinical awareness among dental professionals, serves to mitigate risks of diagnostic errors and suboptimal therapeutic interventions. This expert consensus reviewed the epidemiology, pathogenesis, potential predisposing factors, clinical manifestations, diagnosis, differential diagnosis, treatment, and prognosis of cemental tear, aiming to provide a clinical guideline and facilitate clinicians to have a better understanding of cemental tear.
Humans ; Dental Cementum/injuries* ; Consensus ; Diagnosis, Differential ; Cone-Beam Computed Tomography ; Tooth Fractures/therapy*

Objective To analyze the methodology and reporting quality of acupuncture related randomized controlled trials(RCTs)in order to provide a basis for improving the design and reporting of acupuncture studies.Methods Literatures on RCTs included in acupuncture were obtained from two systematic reviews of acupuncture studies.Two reviewers were selected independently according to the exclusion criteria,and RoB2.0,CONSORT statement and STRICTA criteria were used to evaluate the methodology and report quality.Results 95 literatures on acupuncture RCTs were included,including 51 in Chinese and 44 in English,involving 38 diseases and 54 outcome indicators.CONSORT declared that there were 8 items with high reporting rate,15 items with low reporting rate and 2 items with medium reporting rate in the evaluation.The STRICTA criteria included 8 items with high reporting rate,4 items with low reporting rate,and 4 items with medium reporting rate.As for RoB2.0 bias risk assessment,11.6%of the literature in the overall bias area that served as a summary was high risk,50.5%was likely risk,and 37.9%was low risk.Conclusion The current published RCTs research methodology and report quality evaluation are not high,the future research should improve the scientific and rigorous program design,to form a transparent and complete research report.

Objective:To explore the clinical characteristics and the treatment strategies of surgery and post-operative chemotherapy of ovarian Sertoli-Leydig cell tumors.Methods:A total of 18 patients who underwent sur-gical treatment in Department of Gynecology,Peking University Third Hospital from January 2003 to June 2022 and were pathologically diagnosed with ovarian Sertoli-Leydig cell tumors were selected as the research subjects.The clinical manifestations,auxiliary examinations,surgical and pathological diagnoses,adjuvant treatments and fol-low-up of the included patients were retrospectively analyzed.Results:The age of onset ranged from 19 to 59 years old,with a median age of 24 years old.Among them,12 cases(66.7％)were under40 years old.11 cases(61.1％)showed abnormal symptoms of sex hormones,such as hyperandrogenism and menstrual disorders,and 6 cases(33.3％)sought medical attention for acute abdomen.Preoperative ultrasound indicated a single non-sim-ple mass in the pelvic cavity in 17 cases,during the operation,all tumors were found to originate from one ovary,and all patients under the age of 40(12 cases)underwent adnexectomy on the affected side to preserve fertility.The accuracy of intraoperative frozen pathology was 31.3％(5/16).Among the 18 patients,11 cases were in stage ⅠA and 7 in stage ⅠC,1 case was of well-differentiated type,10 cases of moderate differentiation and 7 ca-ses of poorly differentiated type,3 cases had heterogeneous components.12 cases received adjuvant chemother-apy after surgery.After initial treatment,follow-up was conducted for 4 to 230 months,with a median time of 70.5 months.One case of high-grade sarcoma with heterologous components experienced multiple recurrences,the others had no recurrence.Conclusions:Most cases of ovarian Sertoli-Leydig cell tumors are diagnosed as stageⅠ.For young patients,adnexectomy on the affected side can be performed to preserve fertility and have a good prognosis.But if the tumor contains heterologous components as high-grade sarcoma,it indicates a poor prognosis.

Objective To analyze the methodology and reporting quality of acupuncture related randomized controlled trials(RCTs)in order to provide a basis for improving the design and reporting of acupuncture studies.Methods Literatures on RCTs included in acupuncture were obtained from two systematic reviews of acupuncture studies.Two reviewers were selected independently according to the exclusion criteria,and RoB2.0,CONSORT statement and STRICTA criteria were used to evaluate the methodology and report quality.Results 95 literatures on acupuncture RCTs were included,including 51 in Chinese and 44 in English,involving 38 diseases and 54 outcome indicators.CONSORT declared that there were 8 items with high reporting rate,15 items with low reporting rate and 2 items with medium reporting rate in the evaluation.The STRICTA criteria included 8 items with high reporting rate,4 items with low reporting rate,and 4 items with medium reporting rate.As for RoB2.0 bias risk assessment,11.6%of the literature in the overall bias area that served as a summary was high risk,50.5%was likely risk,and 37.9%was low risk.Conclusion The current published RCTs research methodology and report quality evaluation are not high,the future research should improve the scientific and rigorous program design,to form a transparent and complete research report.

Objective:To construct an evaluation index system of primary practice bases for standardized training of assistant general practitioners in Beijing.Methods:From September to December 2023, the evaluation index system was initially developed using the Context, Input, Process, and Product Evaluation Model (CIPP model), then 20 experts engaged in clinical teaching management and general practice standardized training base evaluation were invited for three rounds of Delphi expert consultation, and the weights of the indicators at all levels were determined using the Analytic Hierarchy Process.Results:The response rates of the three rounds of expert consultation were 100.0%, 95.0%, and 95.0% respectively. The degree of authority of the expert consultations was greater than 0.70. The index importance and feasibility coordination coefficients of three rounds of expert consultation were 0.123 and 0.100 ( P<0.001), 0.064 and 0.068 ( P>0.05), and 0.149 and 0.221 ( P<0.001), respectively, indicting the convergence of the experts′ opinions. The evaluation indexes of the primary practice bases for standardized training of assistant general practitioners in Beijing were finally constructed, including five first-level indexes, including qualification and conditions, teaching organization and system, teaching staff, operation management and quality control; 11 second-level indexes, including basic conditions, department setup, teaching facilities, teaching organization and teaching system; and 25 third-level indexes, including qualification, scale, essential departments, conditional departments and basic teaching facilities. The weights of the five first-level indexes were qualification and conditions (0.333), teaching organization and system (0.167), teaching staff (0.167), operation management (0.167), quality control (0.167). Among the 11 second-level indexes, the top five weights were basic conditions (0.163), department setup (0.104), teaching organization (0.084), teacher requirements (0.084), and basic practice rotation management (0.084). Among the 25 third-level indexes, the top five weights were qualification (0.083), quality control process (0.082), scale (0.081), essential departments (0.053), and conditional departments (0.051). Conclusion:The evaluation index system of primary practice bases for standardized training of assistant general practitioners in Beijing has been constructed in this study based on Delphi expert consultations.

OBJECTIVE To explore the mechanisms of the flavonoids from new "Zhe Eight Flavors" Quzhou Fructus Aurantii(PTFC) against hepatocellular carcinoma based on the prediction of network pharmacology and experimental verification. METHODS From TCMSP, TCMID, ETCM, BATMAN-TCM and SwissTargetPrediction databases, the potential target proteins of PTFC, including naringin, narirutin and neohesperidin were collected. Based on the GeneCards, CTD, Disgenet, and OMIM databases, a set of target proteins for hepatocellular carcinoma was constructed. Taking the intersection of potential target proteins of PTFC and target proteins of hepatocellular carcinoma, key target proteins were obtained and a protein-protein interaction network was established. Besides, GO function and KEGG pathway enrichment analysis on the core target proteins was performed and a Compounds-Targets-Pathways-Disease network was constructed. Through proliferation, cloning, wound healing, and migration experiments, the effects of PTFC on the viability of HepG2 liver cancer cells were analyzed. Using fluorescence probe staining the impacts of PTFC on the mitochondrial membrane potential and apoptosis of HepG2 were observed. Finally, the validation of the regulatory effect of PTFC on the key predicted target PRKCA were carried out through RT-qPCR. RESULTS Based on network pharmacology, a total of 217 potential target proteins for PTFC were screened, with 59 intersecting target proteins related to diseases, including ALB, ESR1, PRKCA, and others. GO functional and KEGG pathway enrichment analysis revealed that the PTFC target proteins were involved in 193 biological processes and 13 cancer-related signaling pathways. Experimental results demonstrated that PTFC could impact the proliferation, cloning, wound healing, and migration abilities of liver cancer cells, leading to a decrease in mitochondrial membrane potential and promoting cell apoptosis. The results of RT-qPCR confirmed a significant downregulation of PRKCA expression by PTFC, validating the predictions made by network pharmacology analysis. CONCLUSION This study has revealed the potential molecular mechanism of PTFC treating hepatocellular carcinoma via the PRKCA target, laying the foundation for clinical application of PTFC.

Objective To establish a stable and reliable method for the determination of ethylene oxide residue,and to analyze ethylene oxide residue in multi components made of different materials involved in some medical devices,so as to provide references for sample selection and ethylene oxide residue detection of multi-component medical device kits.Methods A method for the determination of ethylene oxide residue of multi-component medical devices was developed using headspace-gas chromatography and DB-WAX column under the conditions of headspace extraction with equilibration at 80℃ for 20 min,and the weighing mass,linearity,limit of detection,limit of quantification,precision and recovery of the method were determined.Trials of the method were carried out on the items undergoing ethylene oxide sterilization,including disposable perineal care kit,disposable gynecological examination kit,disposable suture dressing kit,disposable debridement kit and the components contacting human body in the disposable dialysis kit,and the abilities of different materials of the components were analyzed in absorbing,retaining and releasing ethylene oxide.Results The method showed high linearity(r=0.999 8)in the range of ethylene oxide mass concentration from 0.4 to 16.0 μg/mL with a weighing mass of 1.00 g,which had the limit of detection being 0.11 μg/mL,the limit of quantification being 0.37 μg/mL and the relative standard deviations(RSDs)for the precision from 0.35％to 1.52％.The average recoveries of different spiked amounts of ethylene oxide in the three blank matrices ranged from 92.68％to 101.42％with the relative standard deviations(RSDs)from 2.46％to 7.59％,which all satisfied the detection requirements.The components made of rubber and acrylonitrile-butadiene-styrene copolymer(ABS)in multi-component medical device kits had the highest ethylene oxide residues,followed by the components made of wood,degreased cotton,polypropylene and polystyrene.Conclusion The method proposed gains advantages in easy operation and high specificity,quantification and reproducibility,which can be used for the determination of ethylene oxide residue in the multi-component medical device kit undergoing ethylene oxide sterilization.References are provided for sample selection of multi-component medical devices.[Chinese Medical Equipment Journal,2024,45(1):56-61]

Objective To propose an effective method for the determination of 2-chloroethanol(ethylene chlorohydrin,ECH)and ethylene glycol(EG)residues in disposable infusion sets sterilized by ethylene oxide(EO).Methods Extraction with the ratio of the mass of the disposable infusion set to the volume of the medium being 0.4 g/mL was carried out with the 8890B gas chromatograph with liquid injection,DB-WAX column and ethanol extraction medium,and quantitative determination of ECH and EG in disposable infusion sets were implemented after extraction at 37℃for 10 h.Results The method proposely was highly specific,and showed high linearity in the range of 1.25-100.00 μg/mL for both ECH and EG.The limits of detection were 0.31 and 0.11 μg/mL for ECH and EG,respectively,and the relative standard deviations(RSD)of the precision of ECH was in the range of 0.24％-2.03％and those of EG was in the range of 0.16％-0.87％.The average recoveries were 95.02％-100.58％for ECH and 99.15％-99.98％for EG.Conclusion The method proposed for the determination of ECH and EG residues gains advantages in easy operation,specificity,detection accuracy and reproducibility,and meets the requirements for the determination of ECH and EG residues in EO-sterilized disposable infusion sets.[Chinese Medical Equipment Journal,2024,45(10):31-36]