Objective To establish the HPLC fingerprints for the different extracts from Coptidis Rhizoma，and investigate the spectrum-effect relationship between HPLC fingerprints and anti-Staphylococcus aureus activity in vitro to analyze the pharmacodynamic material basis. Methods Nine kinds of Coptidis Rhizoma extracts were prepared, and establish the HPLC fingerprints for them. The antibacterial rate of each extract was determined by the broth microdilution method with Staphylococcus aureus as the test bacteria. The grey relational analysis （GRA） method was used to analyze the correlation between the fingerprint data and the in vitro antibacterial test data. Results The HPLC fingerprints of nine kinds of Coptidis Rhizoma extracts were established, nine common characteristic fingerprint peaks were calibrated, and 5 peaks were identified by the reference substance comparison method. GRA analysis experiments showed that the correlation between nine peaks and antibacterial effect was 0.559 1~0.803 3; and the peak 3, peak 8 （palmatine hydrochloride）, peak 9 （berberine hydrochloride） were positively correlated with the inhibition of Staphylococcus aureus,while the peak 9 （berberine hydrochloride） had the strongest effect, and its correlation degree was 0.803 3. Conclusion The effective substance of antibacterial was preliminarily determined through the study of spectrum-effect relationship for Coptidis Rhizoma extracts,which may be the alkaloids, mostly containing hydrochloride, which provided a reference for further research on the pharmacodynamic material basis of Coptidis Rhizoma.

Periodontal bone defects, primarily caused by periodontitis, are highly prevalent in clinical settings and manifest as bone fenestration, dehiscence, or attachment loss, presenting a significant challenge to oral health. In regenerative medicine, harnessing developmental principles for tissue repair offers promising therapeutic potential. Of particular interest is the condensation of progenitor cells, an essential event in organogenesis that has inspired clinically effective cell aggregation approaches in dental regeneration. However, the precise cellular coordination mechanisms during condensation and regeneration remain elusive. Here, taking the tooth as a model organ, we employed single-cell RNA sequencing to dissect the cellular composition and heterogeneity of human dental follicle and dental papilla, revealing a distinct Platelet-derived growth factor receptor alpha (PDGFRA) mesenchymal stem/stromal cell (MSC) population with remarkable odontogenic potential. Interestingly, a reciprocal paracrine interaction between PDGFRA⁺ dental follicle stem cells (DFSCs) and CD31⁺ Endomucin⁺ endothelial cells (ECs) was mediated by Vascular endothelial growth factor A (VEGFA) and Platelet-derived growth factor subunit BB (PDGFBB). This crosstalk not only maintains the functionality of PDGFRA⁺ DFSCs but also drives specialized angiogenesis. In vivo periodontal bone regeneration experiments further reveal that communication between PDGFRA⁺ DFSC aggregates and recipient ECs is essential for effective angiogenic-osteogenic coupling and rapid tissue repair. Collectively, our results unravel the importance of MSC-EC crosstalk mediated by the VEGFA and PDGFBB-PDGFRA reciprocal signaling in orchestrating angiogenesis and osteogenesis. These findings not only establish a framework for deciphering and promoting periodontal bone regeneration in potential clinical applications but also offer insights for future therapeutic strategies in dental or broader regenerative medicine.
Receptor, Platelet-Derived Growth Factor alpha/metabolism* ; Humans ; Neovascularization, Physiologic/physiology* ; Dental Sac/cytology* ; Single-Cell Analysis ; Transcriptome ; Mesenchymal Stem Cells/metabolism* ; Bone Regeneration ; Animals ; Dental Papilla/cytology* ; Periodontium/physiology* ; Stem Cells/metabolism* ; Regeneration ; Angiogenesis

OBJECTIVE: To observe the effect of perioperative transcutaneous electrical acupoint stimulation (TEAS) on postoperative fatigue syndrome (POFS) in elderly patients undergoing laparoscopic radical gastrectomy. METHODS: A total of 80 elderly patients scheduled for laparoscopic radical gastrectomy were randomized into a TEAS group and a sham TEAS group, 40 cases in each one. In the TEAS group, TEAS intervention was applied at bilateral Hegu (LI4), Neiguan (PC6), Zusanli (ST36) and Sanyinjiao (SP6) from 30 min before anesthesia induction until surgery completion, and at 18:00 on 1st, 2nd and 3rd days after surgery, once a day, 30 min a time. In the sham TEAS group, the same acupoints were selected and connected to the electroacupuncture device at the same time, without electrical stimulation. One day before surgery and 1, 3, 7 days after surgery, the 10-item short form of identity consequence fatigue scale (ICFS-10) score was observed, and the POFS incidence rate of 1, 3, 7 days after surgery was assessed in the two groups. One day before surgery, surgery completion, and 1, 3 days after surgery, the serum levels of superoxide dismutase (SOD), β-endorphin (β-EP) were detected; 1 day before surgery and 1, 3, 7 days after surgery, the serum level of tumor necrosis factor-α (TNF-α) was detected in the two groups. The pain visual analog scale (VAS) score was observed at 24, 48 and 72 h after surgery; the intraoperative dosage of propofol and remifentanil, and the incidence rate of postoperative nausea and vomiting, itching, respiratory depression were recorded in the two groups. RESULTS: In the TEAS group, on 1, 3, 7 days after surgery, except for the scores of item 8-10, the item scores and the total scores of ICFS-10 were lower than those in the sham TEAS group (P<0.001); on 3 and 7 days after surgery, the POFS incidence rates were lower than those in the sham TEAS group (P<0.05). In the TEAS group, on 1 and 3 days after surgery, the serum levels of SOD were higher than those in the sham TEAS group (P<0.05, P<0.01); at surgery completion, and on 1, 3 days after surgery, the serum levels of β-EP were higher than those in the sham TEAS group (P<0.001, P<0.01); on 1, 3, 7 days after surgery, the serum levels of TNF-α were lower than those in the sham TEAS group (P<0.01, P<0.001). In the TEAS group, at 24, 48 and 72 h after surgery, the pain VAS scores were lower than those in the sham TEAS group (P<0.001, P<0.01, P<0.05); the intraoperative dosage of remifentanil was lower than that in the sham TEAS group (P<0.001); the incidence rate of postoperative nausea and vomiting was lower than that in the sham TEAS group (P<0.01). CONCLUSION Perioperative TEAS intervention can effectively reduce the incidence rate of POFS, improve fatigue symptom and mental state in elderly patients undergoing laparoscopic radical gastrectomy, its mechanism may related to enhancing endogenous β-EP release, inhibiting inflammatory response, and reducing central oxidative stress, thereby promoting postoperative recovery.
Humans ; Acupuncture Points ; Male ; Female ; Aged ; Transcutaneous Electric Nerve Stimulation ; Postoperative Complications/therapy* ; Middle Aged ; Fatigue/etiology* ; Gastrectomy/adverse effects* ; beta-Endorphin/blood* ; Tumor Necrosis Factor-alpha/blood*

Objective:To evaluate the effect of low-dose esketamine on intraoperative electroencephalogram (EEG) burst suppression under general anesthesia in elderly patients.Methods:In this prospective randomized controlled trial, 86 elderly patients of either sex, scheduled for elective lumbar fusion surgery at Anhui No. 2 Provincial People′s Hospital from March 15 to June 1, 2024, aged 60-85 yr, with a body mass index of 18-28 kg/m 2, of American Society of Anesthesiologists Physical Status classification ⅡorⅢ, were divided into 2 groups ( n=43 each) using a random number table method: esketamine group (group S) and control group (group C). In group S, esketamine at a dose of 0.25 mg/kg was intravenously injected after anesthesia induction, while the equal volume of normal saline was intravenously injected in group C. The occurrence of EEG burst suppression and frequency of the characteristic density spectral array were recorded using the Masimo Sedline cerebral function monitor. The patient state index was recorded before esketamine administration and at 5, 10, 30 and 60 min after administration and at 5 min before the end of the surgery. Delirium was assessed using the Confusion Assessment Method at 1 and 3 days after operation. The total pressing times of patient-controlled analgesia within 48 h after operation, requirement for rescue analgesia and occurrence of adverse reactions (nausea and vomiting, delayed emergence from anesthesia, agitation, headache) were recorded. The consumption of ephedrine, phenylephrine, sufentanil and remifentanil during operation, emergence time, time of tracheal extubation, length of stay in the post-anesthesia care unit, and length of postoperative hospital stay were also recorded. Results:Compared with group C, the incidence of EEG burst suppression and frequency of the characteristic density spectral array were significantly decreased, the patient state index values were increased at each time point after administration and 5 min before the end of surgery, the consumption of ephedrine, phenylephrine, sufentanil and remifentanil during operation was reduced, the effective pressing times of patient-controlled analgesia, rate of rescue analgesia, and incidence of postoperative delirium within 3 days after operation were decreased, and the length of postoperative hospital stay was shortened in group S ( P<0.05). Conclusions:Low-dose esketamine can reduce intraoperative EEG burst suppression and decrease the development of postoperative delirium under general anesthesia in elderly patients.

Objective:To evaluate the effect of low-dose esketamine on intraoperative electroencephalogram (EEG) burst suppression under general anesthesia in elderly patients.Methods:In this prospective randomized controlled trial, 86 elderly patients of either sex, scheduled for elective lumbar fusion surgery at Anhui No. 2 Provincial People′s Hospital from March 15 to June 1, 2024, aged 60-85 yr, with a body mass index of 18-28 kg/m 2, of American Society of Anesthesiologists Physical Status classification ⅡorⅢ, were divided into 2 groups ( n=43 each) using a random number table method: esketamine group (group S) and control group (group C). In group S, esketamine at a dose of 0.25 mg/kg was intravenously injected after anesthesia induction, while the equal volume of normal saline was intravenously injected in group C. The occurrence of EEG burst suppression and frequency of the characteristic density spectral array were recorded using the Masimo Sedline cerebral function monitor. The patient state index was recorded before esketamine administration and at 5, 10, 30 and 60 min after administration and at 5 min before the end of the surgery. Delirium was assessed using the Confusion Assessment Method at 1 and 3 days after operation. The total pressing times of patient-controlled analgesia within 48 h after operation, requirement for rescue analgesia and occurrence of adverse reactions (nausea and vomiting, delayed emergence from anesthesia, agitation, headache) were recorded. The consumption of ephedrine, phenylephrine, sufentanil and remifentanil during operation, emergence time, time of tracheal extubation, length of stay in the post-anesthesia care unit, and length of postoperative hospital stay were also recorded. Results:Compared with group C, the incidence of EEG burst suppression and frequency of the characteristic density spectral array were significantly decreased, the patient state index values were increased at each time point after administration and 5 min before the end of surgery, the consumption of ephedrine, phenylephrine, sufentanil and remifentanil during operation was reduced, the effective pressing times of patient-controlled analgesia, rate of rescue analgesia, and incidence of postoperative delirium within 3 days after operation were decreased, and the length of postoperative hospital stay was shortened in group S ( P<0.05). Conclusions:Low-dose esketamine can reduce intraoperative EEG burst suppression and decrease the development of postoperative delirium under general anesthesia in elderly patients.

Objective:To establish the myocardial ischemia-reperfusion injury (MIRI) model by ligation of the left ventricular branch of coronary artery in rabbits.Methods:Totally 36 New Zealand white rabbits were randomly divided into 3 groups according to the random number table method, including the sham group ( n=6), the model group ( n=15), and the sustained ischemia group ( n=15). The rabbits were placed under general anesthesia, then endotracheal intubation and common carotid artery intubation were performed. The intercostal muscle between the 3rd and 4th ribs of the left thorax was divided with the aid of a ventilator. The left ventricular branch was located and processed according to the different groups. After successful modeling, the gross morphological change of the heart was observed by naked eye, and the survival rate and modeling success rate of rabbits in each group were calculated respectively. Record the waveform of limb lead Ⅱ electrocardiogram before left ventricular branch ligation (N), 45 minutes of ischemia (I45), 15 minutes of reperfusion (R15), 30 minutes of reperfusion (R30), and 60 minutes of reperfusion (R60). Serum cardiac troponin Ⅰ (cTnⅠ) level was detected by enzyme-linked immunosorbent assay (ELISA), myocardial infarct size ratio was detected by 2, 3, 5-triphenyltetrazolium chloride (TTC) staining, and the change of myocardial tissue changes were detected by hematoxylin-eosin (HE) staining. Results:The survival rate of the rabbits was 93.33% (14/15) in the model group, and the success rate of MIRI modeling was 86.67% (13/15). In the model group, the ST segment (5.00±0.71) mm at I45 was higher than that before the ligation (1.20±0.27) mm, the difference was statistically significant ( P<0.01), and it was stable throughout the whole ischemia period. After ligation removal, the ST segment decreased to (3.00±0.61) mm at R15, (2.20±0.45) mm at R30, and (1.30±0.27) mm at R60. There were statistically significant differences between I45 and N, R15 and I45, and R60 and R15 (all P<0.01). The pathological Q-wave was (1.60±0.55) mm at R15, and decreased to (3.60±0.22 and 5.10±0.22) mm at R30 and R60, respectively. There were statistically significant differences between R30 and R15, R60 and R30, and R60 and R15 (all P<0.01). ST segment (6.10±0.42, 5.80±0.45, 5.60±0.22, and 5.30±0.27) mm at I45, I60, I75 and I105 respectively were higher than the ST segment (1.10±0.22) mm at N in the sustained ischemia group, and the differences were statistically significant (all P<0.01). The serum cTnⅠlevels in the model group at N, I45, R30 and R60 were (62.74±1.60, 97.60±6.36, 159.30±17.64, and 166.40±18.56) ng/L, respectively, and the difference between I45 and N was statistically significant ( P<0.05). There were statistically significant differences between R30 and I45, R60 and I45, and R30 and N (all P<0.01). The serum cTnⅠlevels in the sustained ischemia group were (69.00±4.85, 107.90±7.12, 140.60±10.96, 171.00±15.40) ng/L at N, I45, I75 and I105, respectively. There were statistically significant differences between I45 and N, I75 and I45, and I105 and I75 (all P<0.01). The infarct size ratios of the model group and the sustained ischemia group were 39.93% and (52.16±0.06) %, respectively, and the difference was statistically significant ( P<0.05). Conclusions:The method of establishing a MIRI model by ligating the left ventricular branch of the coronary artery in rabbits is simple to operate, with stable and reliable, and the success rate of modeling is high.

Objective To explore the key targets and signaling pathways in the therapeutic mechanism of Semiliquidambar cathayensis Chang(SC)root against pancreatic cancer network pharmacology and molecular docking studies and cell experiments.Methods The targets of SC and pancreatic cancer were predicted using the network pharmacological database,the protein-protein interaction network was constructed,and pathways,functional enrichment and molecular docking analyses were performed.CCK-8 assay was used to test the inhibitory effect of the aqueous extract of SC root on 8 cancer cell lines,and its effects on invasion,migration,proliferation,and apoptosis of pancreatic cancer cells were evaluated.Western blotting was performed to verify the results of network pharmacology analysis.Results We identified a total of 18 active components in SC,which regulated 21 potential key targets in pancreatic cancer.GO and KEGG pathway enrichment analyses showed that these targets were involved mainly in the biological processes including protein phosphorylation,signal transduction,and apoptosis and participated in cancer signaling and PI3K-Akt signaling pathways.Among the 8 cancer cell lines,The aqueous extract of SC root produced the most obvious inhibitory effect in pancreatic cancer cells,and significantly inhibited the invasion,migration,and proliferation and promoted apoptosis of pancreatic cancer Panc-1 cells(P<0.05).Western blotting confirmed that SC significantly inhibited the phosphorylation levels of PI3K and AKT in Panc-1 cells(P<0.001).Conclusion The therapeutic effect of SC root against pancreatic cancer effects is mediated by its multiple components that act on different targets and pathways including the PI3K-Akt pathway.

Objective To explore the key targets and signaling pathways in the therapeutic mechanism of Semiliquidambar cathayensis Chang(SC)root against pancreatic cancer network pharmacology and molecular docking studies and cell experiments.Methods The targets of SC and pancreatic cancer were predicted using the network pharmacological database,the protein-protein interaction network was constructed,and pathways,functional enrichment and molecular docking analyses were performed.CCK-8 assay was used to test the inhibitory effect of the aqueous extract of SC root on 8 cancer cell lines,and its effects on invasion,migration,proliferation,and apoptosis of pancreatic cancer cells were evaluated.Western blotting was performed to verify the results of network pharmacology analysis.Results We identified a total of 18 active components in SC,which regulated 21 potential key targets in pancreatic cancer.GO and KEGG pathway enrichment analyses showed that these targets were involved mainly in the biological processes including protein phosphorylation,signal transduction,and apoptosis and participated in cancer signaling and PI3K-Akt signaling pathways.Among the 8 cancer cell lines,The aqueous extract of SC root produced the most obvious inhibitory effect in pancreatic cancer cells,and significantly inhibited the invasion,migration,and proliferation and promoted apoptosis of pancreatic cancer Panc-1 cells(P<0.05).Western blotting confirmed that SC significantly inhibited the phosphorylation levels of PI3K and AKT in Panc-1 cells(P<0.001).Conclusion The therapeutic effect of SC root against pancreatic cancer effects is mediated by its multiple components that act on different targets and pathways including the PI3K-Akt pathway.

Objective:To evaluate the safety and effectiveness of laparoscopic ventral mesh rectopexy (LVMR) +anal sphincter plasty for complete rectal prolapse.Methods:From Jan 1, 2018 to Dec 31, 2022, 45 patients with complete rectal prolapse diagnosed in Beijing Erlong Road Hospital received laparoscopic ventral mesh rectopexy +anal sphincter plasty were included in this study.Result:There was no mortality rate associated with LVMR in this study cohort. The follow-up period was 8-76 months, with a median follow-up period of 59 months. There were 2 cases of recurrence, with a recurrence rate of 4%. Patients with concomitant fecal incontinence symptoms had a preoperative Jorge Wexner fecal incontinence score of 13.8±2.0, and postoperative Jorge Wexner fecal incontinence scores of 7.5±1.5, 5.3±1.3, 4.3±1.1, 2.8±1.0, and 1.8±0.5 at 3, 6, 12, 36, and 60 months, respectively, all P<0.001. Patients with concomitant constipation had a preoperative Wexner constipation score of 15.7 ± 1.5, and a postoperative Wexner constipation score of 9.0±1.8, 6.8±1.5, 5.2±1.4, 4.1±0.7, 2.0±0.0 at 3, 6, 12, 36, and 60 months, respectively, all P<0.001. Conclusions:LVMR +anal Sphincter plasty is safe and effective for the treatment of complete rectal prolapse, and there are few complications related to biological patches. Anal sphincter plasty can effectively improve anal function.

Objective:To analyze the effect of perioperative SEPT9 level in peripheral blood on long-term prognosis of patients with colorectal tumors. Methods:Retrospectively analyzed the data of 334 patients with colorectal cancer admitted to the Department of Anus & Intestine Surgery from January 2017 to December 2022, including 197 male patients and 137 female patients, aged 29 to 83 (62.8±10.7) years. Positive group was consisted of 241 patients with positive SEPT9 before surgery, while negative group was consisted of 93 patients with negative SEPT9 before surgery. Among the positive group, 169 cases turned negative for SEPT9 on the one week after surgery (transnegative group), and another 72 cases did not turn negative (non negative group). Univariate and multivariate analysis of clinical general data were carried out to screen out the risk factors affecting the long-term prognosis of colorectal cancer patients after surgery. The survival curve was calculated by Kaplan-Meier method, and the Log-rank test was used to compare the difference in survival rate between groups. Results:All patients′ overall median survival time was 67 months, and the 1, 3 and 5 years overall survival rate was 91.9%, 70.9% and 57.1%. The results of multi-factor analysis showed that whether the tumor had lymph node metastasis, TNM stage, and preoperative SEPT9 methylation status were independent risk factors affecting the long-term prognosis of colorectal cancer ( P=0.004, <0.001, 0.041), while for patients with preoperative SEPT9 positive, TNM stage of tumor and whether SEPT9 turned negative after surgery were independent risk factors for prognosis ( P=0.026, 0.001). The median survival time of patients in positive group and negative group was 63 months and 71 months, respectively. The 1, 3 and 5 year survival rates after surgery were 90.4%, 67.0%, 55.0% and 95.7%, 79.1% and 64.6%, respectively( P=0.007). The median survival time of the patients in the transnegative group and nonnegative group was 45 months and 62 months, respectively. The 1, 3 and 5-year survival rates were 83.2%, 60.5%, 48.1% and 93.5%, 72.9%, 63.5%( P<0.001). Conclusions:Perioperative SEPT9 level is correlated with long-term prognosis of CRC patients, and patients with negative SEPT9 before surgery have better prognosis than those with positive SEPT9. Preoperative positive patients who do not turn negative after surgery often indicate poor prognosis of tumor.