With the rapid development of network technology， live surgery has become the new way of surgery teaching. However， the issue of patient privacy protection caused by live surgery has received widespread attention. Based on the evolutionary game theory， this paper constructed an evolutionary game model from the three-party perspectives of doctors， patients， and government and analyzed the game behaviors of the three parties in the process of live surgery. Matlab software was utilized to conduct dynamic simulation and numerical simulation analysis. It was found that the factors affecting the choice of doctors’ strategies included protection costs， the cost of privacy leakage， the benefits of protection， high-traffic benefits， and other aspects； the factors affecting the choice of patient strategies encompassed surgical costs， the risk of privacy leakage， additional benefits， and other aspects； the factors affecting the choice of government strategies embodied regulatory costs and the improvement of credibility. To realize a win-win situation among doctors， patients， and the government， the three parties need to work together to ensure that patient privacy is not violated and find a balance between expanding the influence of medical education and protecting patient privacy.

ObjectiveTo understand the current situation of medical damage liability disputes involving breach of the duty to inform in China， analyze the factors influencing the types of medical staff’s breach of the duty to inform， and explore the notification problems of medical staff in clinical practice. On these foundations， suggestions were proposed to improve the performance of the duty to inform and reduce medical disputes. MethodsUsing public cases from the China Judgements Online as the data source， the relationship between risk points and types of breach of duty to inform was analyzed using the Chi-square test. Logistic regression analysis was performed to explore the influencing factors of the types of breach of the duty to inform， and qualitative research summarized the specific contents of breach of the duty to inform. ResultsThere were differences in the effects of factors， including whether the patient was hospitalized， whether surgery was performed， whether Intensive Care Unit （ICU） treatment was required， the level of the medical institution， and whether a consultation occurred， on the types of breach of the duty to inform （P<0.05）. Whether surgery was performed was an influencing factor for the types of breach of the duty to inform. Qualitative research showed that the contents of breach of duty to inform primarily involve risk， treatment plan， and deficiencies in disease notification. ConclusionStrengthening the performance of the medical staff’s duty to inform should mainly focus on the medical side， coordinating with multiple parties and taking measures to improve the performance of the duty to inform， to reduce unnecessary medical disputes.

Loss of protein homeostasis is a hallmark of cellular senescence, and ribosome pausing plays a crucial role in the collapse of proteostasis. However, our understanding of ribosome pausing in senescent cells remains limited. In this study, we utilized ribosome profiling and G-quadruplex RNA immunoprecipitation sequencing techniques to explore the impact of RNA G-quadruplex (rG4) on the translation efficiency in senescent cells. Our results revealed a reduction in the translation efficiency of rG4-rich genes in senescent cells and demonstrated that rG4 structures within coding sequence can impede translation both in vivo and in vitro. Moreover, we observed a significant increase in the abundance of rG4 structures in senescent cells, and the stabilization of the rG4 structures further exacerbated cellular senescence. Mechanistically, the RNA helicase DHX9 functions as a key regulator of rG4 abundance, and its reduced expression in senescent cells contributing to increased ribosome pausing. Additionally, we also observed an increased abundance of rG4, an imbalance in protein homeostasis, and reduced DHX9 expression in aged mice. In summary, our findings reveal a novel biological role for rG4 and DHX9 in the regulation of translation and proteostasis, which may have implications for delaying cellular senescence and the aging process.
G-Quadruplexes ; Cellular Senescence ; Ribosomes/genetics* ; Humans ; Animals ; Mice ; DEAD-box RNA Helicases/genetics* ; Protein Biosynthesis ; RNA/chemistry* ; Neoplasm Proteins

Objective To analyze the characteristics of HIV-1 pretreatment drug resistance(PDR)and molecular transmission networks in Yubei District,Chongqing,providing evidence for targeted interventions.Methods Using a cross-sectional design,plasma samples were collected from HIV/AIDS patients receiving antiretroviral therapy(ART)in Yubei District from January 2022 to December 2023.Pol gene fragments were extracted and amplified for HIV-1 genotyping and drug resistance analysis.Molecular transmission networks were constructed based on genetic distance calculations.Results Among 478 HIV-1 pol sequences,eight geno-types were identified:with CRF07_BC(60.4%,289/478),CRF08_BC(15.5%,74/478),CRF01_AE(11.7%,56/478),and CRF85_BC(5.9%,28/478).The overall PDR rate was 6.3%(30/478),with resistance to nucleoside reverse transcriptase inhibitors(NRTIs)and non-nucleoside reverse transcriptase inhibitors(NNRTIs)at 1.7%(8/478)and 5.2%(25/478),respectively.No protease inhibitor(PI)resistance was de-tected.The molecular network included 177 cases(37.0%network entry rate),forming 53 clusters with 198 connections.Cluster sizes ranged from 2 to 17 nodes,and 75.3%(149/198)of connections were associated with five subdistricts/towns:Shuanglonghu Street,Huixing Street,Luoqi Town,Gulu Town,and Baoshenghu Street.Conclusion HIV-1 genotypes in Yubei District exhibit diversity and complexity,with moderate PDR prevalence.Regional clustering of transmission networks suggests the need for enhanced molecular surveil-lance and targeted interventions based on analytical findings.

OBJECTIVE To evaluate the effects of ivabradine on vascular endothelial function in patients with coronary artery disease. METHODS PubMed， Embase， the Cochrane Library， Web of Science， CNKI， Wanfang Data， VIP and CBM databases were retrieved to collect randomized controlled trials （RCTs） about ivabradine （intervention group） versus placebo or β-blocker （control group） from the inception to Mar. 20th 2023. The meta-analysis was performed by using RevMan 5.4 software after literature screening， data extraction and quality evaluation. RESULTS A total of 12 RCTs were included， involving 1 206 patients. The results of meta-analysis showed that the levels of flow-mediated dilation （FMD） [MD＝1.71， 95%CI （0.96， 2.46）， P＜0.000 01] and nitric oxide （NO） [MD＝5.80， 95%CI （5.02， 6.59）， P＜0.000 01] in the intervention group were significantly higher than control group， while endothelin-1（ET-1） level was significantly lower than control group [MD＝－7.45， 95%CI （－8.42， －6.47）， P＜0.000 01]. There was no statistical significance in nitroglycerin-mediated dilation （NMD） level between 2 groups [MD＝0.13， 95%CI（－0.74， 1.00）， P＝0.77]. Subgroup analyses based on the different medications and intervention time in the control group showed better improvement in FMD level of patients receiving ivabradine， compared with placebo （P＜0.05）； compared with placebo and β-blocker， the level of NO in patients receiving ivabradine was improved significantly （P＜0.05）， while ET-1 level was decreased significantly （P＜0.05）. Regardless of the duration of the intervention， the levels of FMD， NO， and ET-1 in the intervention group were significantly improved compared to the control group （P＜0.01）， while the difference in NMD was not statistically significant （P＞0.05）. CONCLUSIONS Ivabradine can improve vascular endothelial function in patients with coronary artery disease.

OBJECTIVE To develop a standard of hierarchical management for patients with chronic obstructive pulmonary disease （COPD） from the perspective of pharmacists. METHODS The triangle hierarchical management model was used as the framework. Through literature research， the indicators of the hierarchical management standard for COPD patients were preliminarily compiled. A questionnaire was designed and administered to 18 experts， and Delphi method was conducted in two rounds to determine the contents of the standard. RESULTS The response rates for both rounds of expert consultation were 100%， with both authority coefficients of experts of 0.903 and Kendall coordination coefficiens of 0.279 and 0.189 for each indicator. The final established standard of hierarchical management for COPD patients included 25 stratified indicators and 17 pharmaceutical hierarchical management indicators. There were 9， 8 and 8 indicators in the high-risk， medium-risk， and stable layers， respectively， considering three aspects： disease， medication， and self-management level. The corresponding first-level， second- level， and third-level pharmaceutical management included 6， 6 and 5 indicators， respectively， including inhalation technical guidance， medication adherence guidance， treatment monitoring， and follow-up， etc. CONCLUSIONS The standard of hierarchical management for COPD patients established by Delphi method is scientific and reliable， which can provide a reference for pharmacists to carry out hierarchical management of COPD patients in China.

OBJECTIVE To evaluate the cost-effectiveness of ivabradine in the treatment of chronic heart failure （CHF） in the context of “Quadruple Therapy” from the perspective of the health system. METHODS Based on real-world cohort data， the Markov model was constructed according to the natural progression of CHF， with a cycle time of 3 months， a study timeframe of 20 years， and a discount rate of 5%. Using quality-adjusted life year （QALY） and incremental cost-effectiveness ratios （ICER） as the output indexes， the cost-utility analysis was used to evaluate the cost-effectiveness of ivabradine in combination with the “Quadruple Therapy” regimen， compared with the “Quadruple Therapy” regimen for the treatment of CHF， and the robustness of the results of the base analysis was verified by univariate sensitivity analysis and probabilistic sensitivity analysis. RESULTS The results of the base analysis showed that the ICER of ivabradine combined with the “Quadruple Therapy” regimen was 165 065.54 yuan/QALY， compared with the “Quadruple Therapy” regimen， which was lower than the willingness-to-pay （WTP） threshold （257 094 yuan/QALY） based on 3 times of China’s gross domestic product （GDP） per capita in 2022. The results of the univariate sensitivity analysis showed that the discount rate had the greatest impact on the robustness of the model. The probabilistic sensitivity analysis showed that the probability that the ivabradine combined with the “Quadruple Therapy” regimen was cost-effective under the WTP threshold in this study was 59.50%. CONCLUSIONS When using 3 times China’s 2022 GDP per capita （257 094 yuan/ QALY） as the WTP threshold， the combination of ivabradine and the “Quadruple Therapy” regimen for treating CHF is cost- effective.

Objective:To explore the clinical effects of a 3D-printed intracranial pressure balancing device in preventing complications after suboccipital craniectomy (DC).Methods:This study is a retrospective cohort analysis. The clinical data of 35 patients who underwent DC at Department of Neurosurgery, Beijing Chaoyang Hospital, Capital Medical University, from September 2020 to September 2023 were reviewed. The cohort included 24 males and 11 females, with an age of (48.7±14.9) years (range:17 to 74 years). Nineteen patients (experimental group) received the intracranial pressure balancing device fixed to the bone defect site post-DC. This device was made using medical-grade dicyanamide resin and was three dimensional printed based on postoperative CT scans of the patients. The remaining 16 patients (control group) did not receive the intracranial pressure balancing device, while other treatments and procedures were consistent with the experimental group. Data were compared using the χ2 test or Fisher′s exact probability method. Results:Out of the 35 patients, 30 cases (85.7%) experienced complications following DC. Specific complications included cerebral infarction in 3 cases (8.6%), intracerebral hemorrhage in 1 case (2.9%), subdural effusion in 27 cases (77.1%) with a median onset of (8.8±6.5) days (range: 1 to 23 days), brain tissue protrusion in 15 cases (42.9%) with a median onset of ( M(IQR)) 7.0 (21.0) days (range:2 to 106 days), and hydrocephalus in 6 cases (17.14%) with a median onset of 34.5 (111.0) days (range: 22 to 136 days). There were no significant differences in the occurrence of complications(all P>0.05). However, there was a significant reduction in the incidence of subdural effusion in the experimental group prior to cranioplasty ( P=0.013). No significant differences were noted in mRS scores between the two groups after cranioplasty ( P>0.05). Conclusions:The intracranial pressure balancing device has the effect of prevention and treatment of subdural effusion. However, it did not significantly improve patient prognosis post-DC, warranting further investigation.

OBJECTIVE To explore the practicality of the pharmaceutical pathway for prophylactic use of antibiotics during the perioperative period of class Ⅰ neurosurgery incisions. METHODS The previously established pharmaceutical pathway for the prophylactic use of antibiotics in the perioperative period of class Ⅰ neurosurgery incisions was used to retrospectively evaluate the prophylactic use of antibiotics in 127 cases. The “antibiotics prophylactic use scoring system” in the pharmaceutical pathway was used to conduct preoperative scoring， and the patient’s actual antibiotics use was compared and analyzed in combination with existing Guiding Principles for Clinical Application of Antibiotics （2015 Edition） （hereinafter referred to as the Guiding Principles）. The pharmaceutical pathway also innovatively proposes key points for improvement in terms of the frequency of adding antibiotics during surgery and the duration of prophylactic use of antibiotics after surgery. By comparing with the actual medication situation of patients， the direction for updating the Guiding Principles was explored. RESULTS According to the retrospective analysis results， for neurosurgery class Ⅰ incision surgery， in addition to the preoperative prophylactic use of antibacterial drugs for skull mass resection and carotid endarterectomy recommended in the guidelines， endoscopic trigeminal microvascular decompression， arthroscopy and other specific joint examinations， spinal nerve Radical decompression， endoscopic lumbar nucleectomy， dural repair， and spinal canal decompression can also be further explored about the situation of not using antibacterial prophylaxis before surgery； at the same time， for the patients undergoing class Ⅰ neurosurgery incisions， the use of antibiotics during and after surgery may be considered for a second addition of antibiotics， taking into account the surgical time. If cerebrospinal fluid leakage occurred after surgery， it is recommended to extend the duration of prophylactic use of antibiotics appropriately. CONCLUSIONS The application of pharmaceutical pathways can provide more targeted analysis of key points in the prevention of antibiotic use， which promotes the transformation of perioperative antibiotics management for class Ⅰ incisions from “qualitative， empirical” management to “quantitative， scientific” management.

Objective:To explore the clinical effects of a 3D-printed intracranial pressure balancing device in preventing complications after suboccipital craniectomy (DC).Methods:This study is a retrospective cohort analysis. The clinical data of 35 patients who underwent DC at Department of Neurosurgery, Beijing Chaoyang Hospital, Capital Medical University, from September 2020 to September 2023 were reviewed. The cohort included 24 males and 11 females, with an age of (48.7±14.9) years (range:17 to 74 years). Nineteen patients (experimental group) received the intracranial pressure balancing device fixed to the bone defect site post-DC. This device was made using medical-grade dicyanamide resin and was three dimensional printed based on postoperative CT scans of the patients. The remaining 16 patients (control group) did not receive the intracranial pressure balancing device, while other treatments and procedures were consistent with the experimental group. Data were compared using the χ2 test or Fisher′s exact probability method. Results:Out of the 35 patients, 30 cases (85.7%) experienced complications following DC. Specific complications included cerebral infarction in 3 cases (8.6%), intracerebral hemorrhage in 1 case (2.9%), subdural effusion in 27 cases (77.1%) with a median onset of (8.8±6.5) days (range: 1 to 23 days), brain tissue protrusion in 15 cases (42.9%) with a median onset of ( M(IQR)) 7.0 (21.0) days (range:2 to 106 days), and hydrocephalus in 6 cases (17.14%) with a median onset of 34.5 (111.0) days (range: 22 to 136 days). There were no significant differences in the occurrence of complications(all P>0.05). However, there was a significant reduction in the incidence of subdural effusion in the experimental group prior to cranioplasty ( P=0.013). No significant differences were noted in mRS scores between the two groups after cranioplasty ( P>0.05). Conclusions:The intracranial pressure balancing device has the effect of prevention and treatment of subdural effusion. However, it did not significantly improve patient prognosis post-DC, warranting further investigation.