OBJECTIVE To identify tortoiseshell glue and antler glue in Qichong zuogui granules， and determine the contents of 12 chemical components. METHODS Identification and content determination were performed by using liquid chromatography- tandem mass spectrometry （LC-MS/MS） method. The identification was performed on Hypersil GOLD column with a mobile phase consisted of acetonitrile-0.1% formic acid solution （gradient elution）； the electrospray ion source was used to scan in the positive ion multi-reaction detection mode. The mass charge ratio （m/z） 631.3→546.4， 631.3→921.4 was the detection ion pair for tortoiseshell glue， and the m/z 765.4→554.0， 765.4→733.0 was the detection ion pair for antler glue. The determination method for 12 chemical components was as follows： Accucore C18 column， methanol-0.1% formic acid as mobile phase （gradient elution）； scanning range of positive and negative ions was m/z 100→1 000 with the electric spray ion source and single ion detection scanning mode. RESULTS Average retention times of the molecular ion peaks for characteristic peptide segments of tortoiseshell glue and antler glue were 6.28 and 6.77 min， respectively； the linear relationship of 12 chemical components was good within their respective concentration ranges， such as astragaloside Ⅳ， calycosin-7-O-β-D-glucoside， calycosin， chlorogenic acid， ferulic acid， betaine， amygdalin， rutin， hydroxysafflor yellow A， hyperoside， loganin， cyasterone （r＞0.999）； RSDs for precision， stability （24 h） and reproducibility tests were all less than 5%. The average sample recovery rates ranged from 98.04% to 101.08%. The average contents of 12 components were 1.83， 25.73， 13.76，56.71， 23.80， 49.82， 807.49， 15.01， 317.02， 60.21， 202.71 and 17.70 μg/g， respectively. CONCLUSIONS In this study， tortoiseshell glue and antler glue in Qixiong zuogui granules are identified， and the contents of 12 chemical components therein are determined. This provides a reference for the quality control of this granule.

OBJECTIVE To investigate the effects of multiple doses of Shugan jieyu capsules on the pharmacokinetics of voriconazole， rivaroxaban and apixaban in rats. METHODS Male SD rats were randomly divided into voriconazole group （30 mg/kg）， rivaroxaban group （2 mg/kg）， apixaban group （0.5 mg/kg）， Shugan jieyu capsules+voriconazole group （145 mg/kg+30 mg/kg）， Shugan jieyu capsules+rivaroxaban group （145 mg/kg+2 mg/kg）， Shugan jieyu capsules+apixaban group （145 mg/kg+0.5 mg/kg）， with 6 rats in each group. After the rats in each group were consecutively administered solvent （0.5% sodium carboxymethyl cellulose solution） or Shugan jieyu capsules by intragastric gavage for 8 days， they were respectively given voriconazole， rivaroxaban and apixaban solution by intragastric gavage on the 8th day. Blood samples were then collected at different time points （in voriconazole group， rivaroxaban group and corresponding drug combination groups， blood was collected before administration and at 0.17， 0.34， 0.5， 0.75， 1， 1.5， 2， 3， 4， 5， 6， 8， 10 and 12 hours post-administration； in apixaban group and corresponding drug combination group， blood was collected before administration and at 0.08， 0.17， 0.25， 0.34， 0.5， 0.75， 1， 3， 5， 7， 10 and 12 hours post-administration）. Ultra-high performance liquid chromatography-tandem mass spectrometry method was employed to determine the mass concentrations of voriconazole， rivaroxaban and apixaban in rat plasma. The main pharmacokinetic parameters of these drugs were calculated using a non-compartmental model， and the comparisons were made between groups. RESULTS Compared with single drug group， after multiple administrations of Shugan jieyu capsules， AUC0－t， AUC0－∞ and cmax of voriconazole were significantly decreased， while CLz/F was significantly increased， and tmax was also significantly prolonged （P＜0.05）. For rivaroxaban and apixaban， their tmax values were both significantly prolonged （P＜0.05）. However， there were no statistically significant differences in the other pharmacokinetic parameters between the two groups （P＞0.05）. CONCLUSIONS The combination of Shugan jieyu capsules can decrease the exposure， increase the clearance， and delay the peak concentration of oral voriconazole. However， it does not affect the exposure levels of rivaroxaban and apixaban， but it does delay the time to reach peak concentration for both drugs.

Objective:To analyze and summarize the trends and hot spots in the field of neurological damage caused by electric welding operations, and to provide ideas for new researches by searching the domestic and international literature.Methods:In December 2022, using Web of Science Citation Index (Web of Science), China Journal Full-Text Database (CNKI) and Wanfang Database as search databases, literature search was conducted on the Chinese and English search terms related to eletrical welding operations and neurological damage. The bibliometric analysis software VOSviewer 1.6.18 and CiteSpace 6.1.6 were used to visualize the publication year, publication quantity, country, research institution and key words of the literature.Results:A total of 309 articles (112 in Chinese and 197 in English) were included in this study. The first domestic and international papers were published in 1976 and 1994 respectively, and the number of papers reached the peak in 2006 and 2018, and then showed a downward trend to varying degrees. In China, Shandong First Medical University (including Shandong Institute of Occupational Health and Occupational Disease Prevention and Shandong Academy of Medical Sciences) and Wuhan University of Science and Technology had the largest number of publications. The 309 articles were from 52 Chinese journals and 86 English journals. The co-occurrence analysis of key words showed that the domestic research mainly focused on eletrical welding operation, welding workers, neurobehavioral function and manganese, and the nervous system damage caused by manganese in welding smoke was the field of international attention. Long term exposure, risk, and performance were key buzzwords in the field.Conclusion:The research focus in the field of nervous system damage caused by electric welding operation has an obvious trend of time evolution, gradually transiting from clinical manifestations to its toxic mechanism and early biomarkers.

Objective To investigate the risk factors for clinically relevant postoperative pancreatic fistula(CR-POPF)after pancreaticoduodenectomy(PD),and to establish a predictive model for early identification of CR-POPF.Methods A total of 244 patients who underwent PD in General Hospital of Northern Theater Command from January 2019 to October 2023 were collected,and based on strict inclusion and exclusion criteria,179 patients were finally enrolled in this study.According to the presence or absence of CR-POPF,these patients were divided into non-CR-POPF group with 120 patients and CR-POPF group with 59 patients.Univariate and multivariate logistic regression analyses were used to determine the independent risk factors for CR-POPF,and a nomogram model was established based on such factors.The receiver operating characteristic(ROC)curve was used to assess the predictive performance of the model,the calibration curve was used to evaluate the calibration degree of the model,and the clinical decision curve and the clinical impact curve were used to analyze and validate the clinical application value of the model.The chi-square test or the Fisher's exact test was used for comparison of categorical data between groups;the independent-samples t test was used for comparison of normally distributed continuous data between two groups,and the Mann-Whitney U test was used for comparison of continuous data with skewed distribution between two groups.Results Among the 179 patients,59(33.0%)developed CR-POPF.The multivariate Logistic regression analysis showed that alanine aminotransferase/aspartate aminotransferase(odds ratio[OR]=2.221,P=0.004),main pancreatic duct diameter(OR=0.276,P=0.022),the distance between the peritoneum and the anterior pancreatic neck(OR=1.034,P=0.027),and extracellular volume fraction(OR=0.001,P=0.005)were independent risk factors for CR-POPF.Based on the above four independent risk factors,a nomogram was established to predict CR-POPF after PD,with an area under the ROC curve of 0.837,a sensitivity of 0.932,and a specificity of 0.725.The decision curve and the clinical impact curve also showed that the nomogram had good clinical practicability.Conclusion Preoperative clinical indicators combined with multi-phase CT have a good performance in predicting CR-POPF after PD,which can be used to early identify patients at high risk of pancreatic fistula before surgery and provide further guidance for clinical work.

Objective This study aimed to observe the outcomes of iRoot BP Plus full pulpotomy in primary molars with partial irreversible pulpitis retrospectively.Methods Collect 102 cases of primary molars with partial irreversible pulpitis undergoing iRoot BP Plus full pulpotomy from January 2019 to August 2023,with a follow-up period of 24-47 months.Based on the presence of irreversible pulpitis symptoms before surgery,the included cases will be divided into asymptomatic group(n=53)and symptomatic group(n=49).Observe the clinical and imaging success rates of both groups.Results Clinical success rates were 96.2%and 97.9%in asymptomatic and symptomatic groups,and ra-diographic success rates were 96.2%and 93.9%respec-tively.Conclusion iRoot BP Plus full pulpotomy can be used for the treatment of primary molars with partial irreversible pulpitis under an enhanced pulpotomy protocol.

Objective:To analyze and summarize the trends and hot spots in the field of neurological damage caused by electric welding operations, and to provide ideas for new researches by searching the domestic and international literature.Methods:In December 2022, using Web of Science Citation Index (Web of Science), China Journal Full-Text Database (CNKI) and Wanfang Database as search databases, literature search was conducted on the Chinese and English search terms related to eletrical welding operations and neurological damage. The bibliometric analysis software VOSviewer 1.6.18 and CiteSpace 6.1.6 were used to visualize the publication year, publication quantity, country, research institution and key words of the literature.Results:A total of 309 articles (112 in Chinese and 197 in English) were included in this study. The first domestic and international papers were published in 1976 and 1994 respectively, and the number of papers reached the peak in 2006 and 2018, and then showed a downward trend to varying degrees. In China, Shandong First Medical University (including Shandong Institute of Occupational Health and Occupational Disease Prevention and Shandong Academy of Medical Sciences) and Wuhan University of Science and Technology had the largest number of publications. The 309 articles were from 52 Chinese journals and 86 English journals. The co-occurrence analysis of key words showed that the domestic research mainly focused on eletrical welding operation, welding workers, neurobehavioral function and manganese, and the nervous system damage caused by manganese in welding smoke was the field of international attention. Long term exposure, risk, and performance were key buzzwords in the field.Conclusion:The research focus in the field of nervous system damage caused by electric welding operation has an obvious trend of time evolution, gradually transiting from clinical manifestations to its toxic mechanism and early biomarkers.

Objective To investigate the changes in serum levels of chemokine ligand 19(CCL19),soluble co stimulatory molecule B7-H3(sB7-H3),and soluble programmed death protein 1(sPD-1)in patients with recurrent oral ulcer(ROU)and their predictive value for recurrence.Methods A total of 320 patients with ROU accepted by our hospital from April 2021 to April 2022 were collected as the study subjects,namely the ROU group.During the same period,320 healthy volunteers without oral diseases who underwent physical ex-amination in our hospital were regarded as the reference group.Enzyme linked immunosorbent assay(ELISA)was applied to detect levels of CCL19,sB7-H3,and sPD-1 in serum.Pearson method was applied to analyze the correlation between the expression levels of CCL19,sB7-H3,and sPD-1 in the serum of ROU patients and the levels of interleukin-6(IL-6),interleukin-10(IL-10),and tumor necrosis factor-α(TNF-α).ROC curve was applied to analyze the predictive value of serum levels of CCL19,sB7-H3,and sPD-1 in patients with ROU for recurrence.Results Compared with the reference group,the serum levels of CCL19 and sPD-1 in the ROU group were obviously increased,while the level of sB7-H3 was obviously reduced(P＜0.05).The serum lev-els of IL-6,IL-10,and TNF-α in the ROU group were obviously higher than those in the reference group(P＜0.05).Correlation analysis showed that the levels of CCL19 and sPD-1 in the serum of ROU patients were positively correlated with the levels of IL-6,IL-10,and TNF-α,while the level of sB7-H3 was negatively corre-lated with the levels of IL-6,IL-10,and TNF-α(P＜0.05).Compared with the non recurrent group,the serum levels of CCL19 and sPD-1 in the recurrent group were obviously increased,while the level of sB7-H3 was ob-viously reduced(P＜0.05).The AUC of combined detection of CCL19,sB7-H3,and sPD-1 in serum for pre-dicting the recurrence of ROU patients was higher than the AUC of single detection of three factors[ZCCL19-the combination of the three-3.-294,P=0.001;ZsB7-H3-the combination of the three=4.348,P＜0.001;ZsPD-1-the combination of the three 4.990,P＜0.001].Conclusion CCL19 and sPD-1 are highly expressed in the serum of ROU patients,while sB7-H3 is lowly expressed.These three factors have certain value in predicting the recurrence of ROU.

Objective To construct a clinical prediction model of general anesthesia post-induction hypotension(PIH)in patients undergoing laparoscopic cholecystectomy(LC)based on machine learning.Methods The data of patients who underwent LC surgery from May 2019 to September 2023 were retro-spectively selected.The training set and the validation set were allocated at a ratio of 7:3.Logistic regres-sion,random forest(RF),and support vector machine(SVM)were used to construct the prediction model of PIH.The discrimination accuracy of the model was evaluated by the area under the receiver operating characteristic(ROC)curve,and the calibration of the model was evaluated by calibration curve and Hos-mer-Lemeshow(H-L)test.The nomogram was used for visual interpretation of the model.Results A total of 260 patients were included,and 82 patients(31.5％)developed PIH.There were 182 patients in the training set and 78 patients in the validation set.Fifty-eight patients(31.9％)in the training set developed PIH,and 24 patients(30.8％)in the validation set developed PIH.Age,BMI,use of angiotensin conver-ting enzyme inhibitors(ACEIs)/angiotensin receptor blockers(ARBs),basal HR and MAP,HR and MAP on entering the operating room,HR change,and MAP change were important factors for the model to predict PIH.The logistic regression model had the best prediction performance,with AUC,accuracy and re-call rate of 0.93(95％CI 0.90-0.99),0.81,and 0.81 in validation set,respectively.Conclusion The logistic regression model based on machine learnin has good performance in predicting PIH.The selected predictive variables are age,BMI,use of ACEIs/ARBs,basal HR and MAP,HR and MAP on entering the operating room,HR and MAP change,which can quickly and accurately assess the risk of PIH.

Objective:To explore the mechanism of herb-partitioned moxibustion in relieving rat intestinal inflammation by focusing on the neutrophil extracellular traps(NETs)in Crohn disease(CD)development. Methods:Rats were randomly divided into a normal group,a model group,a herb-partitioned moxibustion group,and a mesalazine group.The CD rat model was prepared with 2,4,6-trinitrobenzene sulfonic acid except for rats in the normal group.Rats in the normal group and model group did not receive any treatment but had the same fixation as the other groups.Rats in the herb-partitioned moxibustion group received herb-partitioned moxibustion at Qihai(CV6)and bilateral Tianshu(ST25).Rats in the mesalazine group received intragastric administration of mesalazine enteric-coated tablets.The general situation of rats in each group was recorded,and the histopathological changes in the colon were observed and scored by hematoxylin-eosin staining.The serum concentrations of NETs DNA(NETs-DNA),neutrophil elastase(NE)-DNA,and myeloperoxidase(MPO)-DNA were detected by ABC enzyme-linked immunosorbent assay,and the citrullinated histone 3(citH3),MPO,and NE protein and mRNA expression levels in rat colon tissue were observed by immunofluorescence and real-time quantitative polymerase chain reaction. Results:Compared with the normal group,the mucosal ulcer reached the muscularis,the epithelium was incomplete,the goblet cells decreased obviously with significant inflammatory cell infiltration in the colon;the colonic mucosa damage index(CMDI)score increased significantly(P<0.01);the serum NETs-DNA,NE-DNA,and MPO-DNA concentrations increased(P<0.05);the NE,citH3,and MPO protein and mRNA expression in the colonic tissue increased significantly in the model group(P<0.01 or P<0.05).Compared with the model group,the mucosal epithelium in the herb-partitioned moxibustion group and the mesalazine group was repaired and the goblet cells increased with a few infiltrating inflammatory cells in the colon;the CMDI score decreased(P<0.01);the serum NETs-DNA,NE-DNA,and MPO-DNA concentrations decreased(P<0.05);the NE,citH3,and MPO protein and mRNA expression in the colonic tissue was down-regulated(P<0.01 or P<0.05). Conclusion:Herb-partitioned moxibustion reduced the serum NETs complex and inhibited the protein and mRNA expression of NETs complex in the colon tissue,which may be one mechanism of herb-partitioned moxibustion in relieving colon mucosal inflammation in CD.

Objective:To systematically evaluate the efficacy and safety of Suhuang Zhike Capsules in treating chronic obstructive pulmonary disease(COPD)and to analyze the multi-target and multi-pathway intervention mechanisms of Suhuang Zhike Capsules in treating COPD using network pharmacology and molecular docking technology.Methods:Based on meta-analysis,the clinical total effective rate and adverse reactions of Suhuang Zhike Capsules in treating COPD were evaluated.The effective components and action targets of Suhuang Zhike Capsules were preliminarily predicted through the Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform(TCMSP)and GeneCards database,respectively,and the target information was standardized.COPD targets were selected through various databases.Suhuang Zhike Capsules targets and COPD targets were integrated to obtain the key targets for treating COPD.A protein-protein interaction(PPI)network was constructed to identify core targets,and GO and KEGG enrichment analyses were performed for intersection targets.The key active components of Suhuang Zhike capsule and core targets of COPD were verified by molecular docking.Results:Results of meta-analysis showed that compared with conventional treatment,combined with Suhuang Zhike Capsules significantly improved the clinical total effective rate(OR=4.26,95%CI:3.20-5.68,P＜0.01).There was no statistically significant difference between the two groups in the incidence of adverse reactions(P＞0.05).The network pharmacology results showed 90 active compounds,141 COPD-related targets,and 103 related pathways.Molecular docking results indicated that the core components of Suhuang Zhike Capsules,such as luteolin,quercetin,and kaempferol,were successfully docked with core targets of COPD,including epidermal growth factor receptor(EGFR),serine/threonine kinase 1(AKT1),and matrix metalloproteinase 9(MMP9),with all binding energies＜-5 kcal/mol,indicating good binding activity.Conclusions:Conventional treatment combined with Suhuang Zhike Capsules can improve clinical efficacy and has good safety in treating COPD.Suhuang Zhike Capsules may be involved in the treatment of COPD through multiple-target and multiple-pathway.This study provides bioinformatics support and safety evaluation for the clinical application of Suhuang Zhike Capsules in treating COPD and provides new insights for further research.