ObjectiveTo investigate the therapeutic effects of the Anemarrhenae Rhizoma water extract （AR） on Alzheimer's disease （AD） model rats and to explore its potential underlying mechanisms. MethodsMale rats were intraperitoneally injected with D-galactose （100 mg·kg^-1） for 42 days， and on day 14， 1 μL of β-amyloid （Aβ_25-35， 2 g·L^-1） solution was injected into the hippocampus. Rats were randomly divided into a model group， low-dose AR （0.6 g·kg^-1）， medium-dose AR （1.2 g·kg^-1）， high-dose AR （2.4 g·kg^-1）， and a positive control group （donepezil， 5 mg·kg^-1）. Healthy rats receiving only a hippocampal injection of 1 μL of sterile saline served as the sham-operated group. From day 21， rats in the treatment groups were administered the corresponding drugs by gavage once daily for 21 consecutive days， while the blank control and model groups received an equal volume of saline. Learning and memory abilities were assessed using the Morris water maze. Brain tissue damage was observed by hematoxylin and eosin （HE） staining， and neuronal apoptosis was evaluated by terminal deoxynucleotidyl transferase dUTP nick-end labeling （TUNEL） staining. Levels of interleukin-1β （IL-1β）， tumor necrosis factor-α （TNF-α）， and interleukin-10 （IL-10） in brain tissues were measured by enzyme-linked immunosorbent assay （ELISA）. BV2 microglial cells were co-cultured with Aβ_25-35 （40 μmol·L^-1） for 2 h， and cell viability was determined by the CCK-8 assay to screen the optimal concentration of AR-containing serum （S-AR）. Cells were divided into blank control， Aβ_25-35， S-AR， EX527 ［silent information regulator 1 （SIRT1） inhibitor］， and S-AR+EX527 groups. Immunofluorescence staining was used to detect the expression of CD16， CD206， and high-mobility group box 1 （HMGB1）. Western blot analysis was performed to measure the protein expression of CD16， inducible nitric oxide synthase （iNOS）， CD206， arginase （Arg）， and proteins related to the SIRT1/HMGB1/nuclear factor-κB （NF-κB） signaling pathway. ResultsIn vivo experiments showed that， compared with the sham-operated group， the model group exhibited reduced platform crossings and time spent in the target quadrant （P<0.01）， prolonged escape latency， increased hippocampal neuronal apoptosis （P<0.01）， and obvious hippocampal damage. The expression levels of IL-6， TNF-α， IL-10， CD16， and iNOS in brain tissues were significantly elevated （P<0.01）， while CD206 and Arg protein expression showed an increasing trend without statistical significance. Compared with the model group， all AR-treated groups significantly increased platform crossings and target quadrant time （P<0.05， P<0.01）， alleviated hippocampal damage， reduced escape latency and neuronal apoptosis， downregulated the expression of TNF-α， IL-6， CD16， and iNOS （P<0.05， P<0.01）， and upregulated the expression of IL-10， CD206 and Arg （P<0.05， P<0.01）. In vitro experiments demonstrated that， compared with the blank control group， the Aβ_25-35 group showed increased fluorescence intensity of CD206， CD16， and HMGB1， as well as elevated protein expression of iNOS and CD16 （P<0.01）， while CD206 and Arg protein expression exhibited an increasing trend without statistical significance. After S-AR intervention， CD206 fluorescence intensity and the protein expression of Arg and CD206 were significantly increased （P<0.01）， whereas the fluorescence intensity of CD16 and HMGB1 and the protein expression of iNOS and CD16 were significantly decreased （P<0.01）. These effects were reversed by EX527 （P<0.05， P<0.01）. Furthermore， compared with the blank control group， the Aβ_25-35 group showed significantly increased cytoplasmic HMGB1 expression and p-p65/p65 ratio （P<0.01）， along with significantly decreased SIRT1 and nuclear HMGB1 expression （P<0.01）. In contrast， the S-AR group exhibited opposite trends compared with the Aβ_25-35 group， and the regulatory effects of S-AR on these proteins were reversed by EX527 （P<0.01）. ConclusionAR exerts neuroprotective effects in AD model rats by regulating microglial polarization and alleviating neuroinflammation， potentially through modulation of the SIRT1/HMGB1/NF-κB signaling pathway.

Purpose To explore the characteristics of gray matter(GM)volume changes in migraine patients using 7T MRI and voxel-based morphometry(VBM).Materials and Methods This prospective study enrolled 30 migraine patients and 41 age-and gender-matched healthy controls from Beijing Tiantan Hospital,Capital Medical University between November 2023 and November 2024.All participants underwent 7T MRI with 3D T1-weighted magnetization-prepared two rapid gradient-echo(MP2RAGE)sequences for structural brain imaging.VBM analysis was performed to quantify GM,white matter,cerebrospinal fluid and total brain volumes,followed by calculations of their relative percentages.The difference in GM volume between the two groups was compared to identify brain regions with characteristic GM volume changes in migraine patients.And the correlation between these characteristic GM volume alterations and clinical scales was analyzed.Results Migraine patients exhibited significantly lower total GM volume compared to healthy controls(t=2.096,P=0.040),while no group differences were observed in white matter or cerebrospinal fluid volumes(t=0.980,0.151;P=0.330,0.880).VBM analysis revealed reduced GM volume in the left orbitofrontal cortex(t=4.301,P=0.022),left hippocampus(t=5.226,P=0.006)and left parahippocampal gyrus(t=3.960,P=0.040)in the migraine group.Negative correlations were identified between:left orbitofrontal cortex GM volume and headache duration(r=-0.506,P=0.008),left hippocampal GM volume and patient health questionnaire-9 scores(r=-0.620,P=0.003),and left parahippocampal GM volume and visual analogue scale scores(r=-0.449,P=0.019).Conclusion VBM analysis based on 7T MP2RAGE data demonstrates characteristic GM volume reductions in the left orbitofrontal cortex,left hippocampus and left parahippocampal gyrus in migraine patients,with these structural alterations significantly correlate with depressive symptoms and headache burden.The observed microstructural abnormalities may reflect underlying pathophysiological mechanisms related to pain processing,emotional regulation and long-term disease burden in migraine.

Pain is a distressing experience in sensory,emotional,cognitive,and social dimensions associated with existed or potential tissue damage.Studies have demonstrated the efficacy of acupuncture analgesia,but the underlying mechanisms are not fully understood.Bioelectrical signals,as one of the basic characteristics of life activities,play a key role in the process of acu-puncture analgesia.Through advanced neurophysiological techniques and multimodal imaging,it has been found that acupuncture can trigger specific changes in bioelectric signals,thus producing analgesic effects.With the rapid development of modern medi-cal technology,the study of bioelectrical signals has gradually delved into the cellular and molecular levels,providing more possi-bilities to reveal the analgesic mechanism of acupuncture.This review focuses on the close connection between bioelectrical sig-naling phenomena and acupuncture analgesia mechanism,summarizes the current research status of bioelectrical signaling phe-nomena in acupuncture analgesia mechanism by collating related literature.The future research directions were prospected,ai-ming to provide theoretical basis and new ideas for further understanding and applying acupuncture analgesia.

Objective This study aimed to construct a risk scoring model based on DNA methylation featuresof ferroptosis-related gene,and systematically evaluate its predictive value for the prognosis and immunotherapy response of patients with colon canc-er.Methods Transcriptomic,DNA methylation,and clinical data of colon cancer patients were obtained from the Cancer Genome At-las(TCGA)and Gene Expression Omnibus(GEO)databases.Ferroptosis-related genes were identified from the FerrDb database.Fer-roptosis scores(FS)for each patient were calculated using the single-sample gene set enrichment analysis(ssGSEA)method,and con-struct a risk scoring model by combining differential methylation CpG sites with Cox regression analysis.The prognostic performance of the model was evaluated using receiver operating characteristic(ROC)curves,a nomogram,and decision curve analysis.The multiple algorithms were used to analyze the relationship between colon cancer models and immune cell infiltration,immunotherapy response,and chemotherapy sensitivity.Results A total of 49 ferroptosis-related genes significantly associated with overall survival(OS)were identified for calculating FS.The OS of colon cancer patients in the high-FS group was significantly shorter than that in the low-FS group(P=0.0075).The constructed DNA methylation risk score models included key CpG sites,and the ROC curves and multivariate Cox regression analysis at 1-,3-,and 5-years overall survival rate in the TCGA cohort and the GSE17536 validation cohort showed that the model was an independent prognostic factor for colon cancer patients.The low-risk group had higher immune scores and infil-tration levels of B cells and dendritic cells,while the high-risk group had a higher abundance of fibroblasts.Patients in the high-risk group showed upregulation of PD-L1 expression and higher immune phenotype scores.In addition,the model could also predict the sensitivity differences of commonly used chemotherapeutic drugs such as doxorubicin,gemcitabine,and paclitaxel.Conclusion The risk scoring model established using DNA methylation features of ferroptosis-related gene can be used to predict the prognosis of colon cancer patients and provide a new biomarker for achieving precision treatment.

Objective To explore the mechanism of malt alcohol extract improving depression-like behavior induced by CUMS in rats by regulating gut microbiota.Methods The depression model of rats was established using an 8-weeks CUMS procedure,and the administration group was given low(59.6 mg·kg-1)and high(178.8 mg·kg-1)doses of malt alcohol extract,respectively.The depression-like behavior of rats was evaluated by classic behavioral test.The composition of intestinal microbiota of rats was analyzed by 16S rRNA sequencing.The morphological changes of colon were observed by hematoxylin and eosin(HE),the expression of ZO-1 and Occludin in colon was detected by immunofluorescence(IF),and the expression of IL-10,IL-1βand 5-HT were detected by ELISA.Results The low dose of malt alcohol extract attenuated the depressive behavior and restored the expression of 5-HT in the brain of CUMS rats.16S rRNA sequencing results showed that the diversity and relative abundance of gut microbiota changed after treatment with the low dose of malt alcohol extract.ELISA results showed that the low dose of malt alcohol extract significantly reversed the CUMS-induced reduction of IL-10 and elevation of IL-1 β.HE results showed that the low dose of malt alcohol extract significantly ameliorated CUMS-induced structural damage in colon.IF results showed increased protain expression of intestinal epithelial barrier tight junction proteins ZO-1 and Occludin by the low dose of malt alcohol extract.Conclusion The low dose of malt alcohol extract can ameliorate CUMS-induced depressive-like behavior in rats by modulating intestinal flora,restoring 5-HT expression in the brain,inhibiting inflammation,and repairing the intestinal barrier.

Objective To develop a predictive model for assessment of the risk of the patients on prolonged mechanical ventilation after coronary artery bypass grafting with extracorporeal circulation.Methods A convenience sampling method was employed to select 2 334 patients who received the coronary artery bypass grafting(CABG)with extracorporeal circulation in our hospital from January 2021 to December 2023 as the study subjects.Preoperative,intraoperative and postoperative data were collected through structured queries from the electronic medical record system of hospital.The study subjects were randomly divided into a training set(n=1 633)and a validation set(n=701)following a 3:1 ratio.A risk prediction model was established using Logistic regression based on the training set data.Model fit was assessed using Hosmer-Lemeshow test,and predictive performance of the model was evaluated with the area under curve(AUC)of the receiver operating characteristic(ROC)curve.Results A total of 2,334 patients were included,of whom 215(9.2%)experienced the prolonged mechanical ventilation(>24 hours).The model developed from the training set identified seven factors that contributed to a prolonged mechanical ventilation:age(OR=1.03),body mass index(BMI,OR=1.14),time of extracorporeal circulation(OR=1.01),intraoperative blood transfusion(OR=4.15),postoperative serum total bilirubin(OR=1.08),postoperative serum albumin(OR=0.92)and postoperative re-sternotomy(OR=5.49).The AUC of the model for prediction of prolonged mechanical ventilation after CABG with extracorporeal circulation was 0.761,with a 95%CI of 0.716-0.806,a maximum Youden index of 0.105,a sensitivity of 77.94%,and a specificity of 64.38%.Validation using the validation set data yielded an AUC of 0.733,with a 95%CI of 0.662-0.804,a sensitivity of 75.32%,a specificity of 57.97%,and a predictive accuracy of 73.61%.Conclusion The risk prediction model developed in this study for prolonged mechanical ventilation after a CABG with extracorporeal circulation demonstrates a good predictive performance.It provides a reference for the nurses to identify the patient in high-risk of prolonged mechanical ventilation after a CABG with extracorporeal circulation and to implement preventive nursing measures.

Pain is a distressing experience in sensory,emotional,cognitive,and social dimensions associated with existed or potential tissue damage.Studies have demonstrated the efficacy of acupuncture analgesia,but the underlying mechanisms are not fully understood.Bioelectrical signals,as one of the basic characteristics of life activities,play a key role in the process of acu-puncture analgesia.Through advanced neurophysiological techniques and multimodal imaging,it has been found that acupuncture can trigger specific changes in bioelectric signals,thus producing analgesic effects.With the rapid development of modern medi-cal technology,the study of bioelectrical signals has gradually delved into the cellular and molecular levels,providing more possi-bilities to reveal the analgesic mechanism of acupuncture.This review focuses on the close connection between bioelectrical sig-naling phenomena and acupuncture analgesia mechanism,summarizes the current research status of bioelectrical signaling phe-nomena in acupuncture analgesia mechanism by collating related literature.The future research directions were prospected,ai-ming to provide theoretical basis and new ideas for further understanding and applying acupuncture analgesia.

Objective This study aimed to construct a risk scoring model based on DNA methylation featuresof ferroptosis-related gene,and systematically evaluate its predictive value for the prognosis and immunotherapy response of patients with colon canc-er.Methods Transcriptomic,DNA methylation,and clinical data of colon cancer patients were obtained from the Cancer Genome At-las(TCGA)and Gene Expression Omnibus(GEO)databases.Ferroptosis-related genes were identified from the FerrDb database.Fer-roptosis scores(FS)for each patient were calculated using the single-sample gene set enrichment analysis(ssGSEA)method,and con-struct a risk scoring model by combining differential methylation CpG sites with Cox regression analysis.The prognostic performance of the model was evaluated using receiver operating characteristic(ROC)curves,a nomogram,and decision curve analysis.The multiple algorithms were used to analyze the relationship between colon cancer models and immune cell infiltration,immunotherapy response,and chemotherapy sensitivity.Results A total of 49 ferroptosis-related genes significantly associated with overall survival(OS)were identified for calculating FS.The OS of colon cancer patients in the high-FS group was significantly shorter than that in the low-FS group(P=0.0075).The constructed DNA methylation risk score models included key CpG sites,and the ROC curves and multivariate Cox regression analysis at 1-,3-,and 5-years overall survival rate in the TCGA cohort and the GSE17536 validation cohort showed that the model was an independent prognostic factor for colon cancer patients.The low-risk group had higher immune scores and infil-tration levels of B cells and dendritic cells,while the high-risk group had a higher abundance of fibroblasts.Patients in the high-risk group showed upregulation of PD-L1 expression and higher immune phenotype scores.In addition,the model could also predict the sensitivity differences of commonly used chemotherapeutic drugs such as doxorubicin,gemcitabine,and paclitaxel.Conclusion The risk scoring model established using DNA methylation features of ferroptosis-related gene can be used to predict the prognosis of colon cancer patients and provide a new biomarker for achieving precision treatment.

Objective:To analyze the guiding value of index of consciousness 1(IoC1) and index of consciousness 2(IoC2) in anesthesia management of laparoscopic surgery.Methods:A total of 100 elderly patients undergoing laparoscopic surgery under general anesthesia in the Beijing Coal Group General Hospital from June 2022 to October 2023 were prospectively selected as research objects, and they were divided into the observation group and the control group according to random number table method, with 50 cases in each group. The observation group used IoC1 and IoC2 to monitor and guide anesthesia management, while the control group used bispectral index (BIS) to monitor the depth of anesthesia, and combined with the experience of anesthesiologists to guide anesthesia management. The changes of vital signs of patients in the two groups were compared after calm entry (T 0), induction of anesthesia (T 1), implantation of laryngeal mask 1 min (T 2), carbon dioxide (CO 2) pneumoperitoneum 1 min (T 3), and removal of laryngeal mask 1 min (T 4). The time of resuscitation extubation, dosage of anesthetic drugs, dosage of vasoactive drugs, IoC1, IoC2 and BIS were compared between the two groups. Results:The pneumoperitoneum time and incidence of circulatory instability between the two groups had no statistical differences ( P>0.05). The time of resuscitation and extubation in the observation group was shorter than that in the control group : (8.16 ± 6.08) min vs. (13.10 ± 7.09) min, the dosage of propofol and remifentanil were lower than those in the control group : (382.10 ± 201.90) mg vs. (465.48 ± 213.51) mg, (0.81 ± 0.62) mg vs. (1.17 ± 0.55) mg, there were statistical differences ( P<0.05). The amount of ephedrine and atropine between the two groups had no statistical differences ( P>0.05). The dosage of norepinephrine in the observation group was lower than that in the control group: (106.42 ± 46.12) μg vs. (147.04 ± 51.38) μg, there was statistical difference ( P<0.05). The heart rate, mean arterial pressure (MAP) and IoC1/BIS between the two groups had no statistical differences ( P>0.05). The IoC2 values of T 0, T 1, T 2, T 3 and T 4 in the observation group were 97.46 ± 2.46, 45.28 ± 5.08, 48.64 ± 4.51, 50.44 ± 4.21 and 96.08 ± 2.69, respectively. The IoC2 value of T 3 was higher than that of T 1 and T 2 in the observation group, there were statistical differences ( P<0.05). Conclusions:The application of IoC1 and IoC2 to monitor and guide the anesthesia management of laparoscopic patients under general anesthesia makes the application of anesthetic drugs more quantitative and precise, the perioperative vital signs more stable, and the recovery time faster.

Objectives:To explore the therapeutic efficacy of balloon stent kissing technique(BSKT)and jailing wire technique(JWT)in patients with true bifurcation lesions of the left anterior descending branch-diagonal branch of the coronary artery,and to observe the impact of these two interventional procedures on the lumen area,angina symptoms,cardiac function,myocardial injury,and myocardial perfusion of patients.Methods:A retrospective analysis was conducted in 203 patients with true bifurcation lesions of the left anterior descending branch-diagonal branch who underwent BSKT and JWT procedures and completed a 6-month follow-up in the Department of Cardiovascular Medicine at Shijiazhuang People's Hospital from January 2022 to January 2024.Patients were randomly assigned to the BSKT group(n=107)or the JWT group(n=96).The safety,efficacy,and myocardial perfusion indicators of the two groups were compared.Results:The minimum lumen area measured by intravascular ultrasound immediately after procedure,the Canadian Cardiovascular Society angina classification at 6 months post-intervention,the total score of resting+stress myocardial perfusion at 6 months post-intervention,the total number of segments with resting+stress myocardial ischemia,and the abnormal myocardial perfusion area in both the BSKT group and JWT group were significantly improved compared to baseline values(all P<0.05).In the BSKT group,87 cases(81.3%)achieved immediate success in stent placement,whereas in the JWT group,64 cases(66.7%)achieved immediate success in stent placement.The BSKT group significantly outperformed the JWT group.In terms of the myocardial injury and cardiac function indicators assessed on postoperative day 1,the cardiac troponin I level([0.22±0.13]ng/ml vs.[0.45±0.27]ng/ml,P<0.001),creatine kinase MB([35.24±13.15]U/L vs.[42.39±21.66]U/L,P=0.004),and B-type natriuretic peptide([133.52±25.62]pg/ml vs.[167.22±22.04]pg/ml,P<0.001)were all significantly lower in the BSKT group than in the JWT group.In terms of the myocardial perfusion indicators at 6 months post-intervention,the number of ischemic segments under stress(3.23±1.54 vs.3.87±1.62,P=0.004),the total score of stress perfusion(4.18±2.21 vs.4.97±2.96,P=0.031),and the abnormal myocardial perfusion area([7.04±3.27]%vs.[8.24±3.69]%,P=0.014)were all significantly lower in the BSKT group than in the JWT group.Conclusions:Both BSKT and JWT procedures can significantly improve the lumen area of the left anterior descending branch,angina symptoms,and myocardial perfusion in patients with true bifurcation lesions of the left anterior descending branch-diagonal branch.The BSKT procedure provides more adequate protection for the bifurcation vessels compared to the JWT procedure.