Objective:To observe the clinical value of neutrophil to lymphocyte ratio(NLR),platelet to lymphocyte ratio(PLR),C-reactive protein(CRP)to albumin(ALB)ratio(CAR)dynamic monitoring in the acute phase of Kawasaki disease(KD).Methods:This study was a single-center prospective study,146 in the acute phase of KD patients who were admitted to The Third Affiliated Hospital of Guangdong Medical University from June 2022 to September 2024 were selected as the study subjects(KD group).Hospitalized patients with fever ≥ 3 days received during the same period(fever control group,n=146)and healthy children underwent physical examination(healthy control group,n=146)were seleted.According to the differences in response to intravenous immunoglobulin treatment,KD patients were divided into two subgroups:immunoglobulin insensitive group(n=21)and immunoglobulin sensitive group(n=125).According to the presence or absence of coronary artery injury(CAL),KD patients were divided into two subgroups:non CAL group(n=97)and CAL group(n=49).According to alanine aminotransferase(ALT)expression level,KD patients were divided into two subgroups:non liver injury group(ALT value＜80 U/L,n=110)and liver injury group(ALT value ≥ 80 U/L,n=36).NLR,PLR,and CAR of KD group,fever control group,and healthy control group were compared.NLR,PLR,and CAR were compared at admission,before and 3 d after immunoglobulin infusion between the immunoglobulin sensitive group and immunoglobulin insensitive group,liver injury group and non liver injury group,CAL group and non CAL group.Receiver operating characteristic(ROC)curve was used to evaluate diagnostic efficacy.Result:NLR,PLR,and CAR of the KD group and fever control group were higher than those of the healthy control group,and the KD group were higher than those of the fever control group(P＜0.05).NLR,PLR,and CAR of the immunoglobulin insensitive group were higher than those of the immunoglobulin sensitive group at admission,before and 3 d after immunoglobulin infusion(P＜0.05).NLR,PLR,and CAR of the liver injury group were higher than those of non liver injury group at admission,before and 3 d after immunoglobulin infusion(P＜0.05).NLR,PLR,and CAR of the CAL group were higher than those of the non CAL group at admission,before and 3 days after immunoglobulin infusion(P＜0.05).When NLR,PLR,and CAR were used alone or in combination at admission,the area under curve(AUC)(95％CI)of ROC values were 0.798(0.715～0.869),0.802(0.717～0.871),0.833(0.752～0.896),and 0.935(0.873～0.973),respectively,among them,the combination had the highest diagnostic efficacy.Conclusion:NLR,PLR,and CAR are all abnormally elevated in KD patients,and which are associated with patient immunoglobulin sensitivity,liver injury and CAL.The combination detection of the above three indicators has better diagnostic efficacy for KD.

Objective:To investigate the role of miR-34b-5p in formation of atherosclerosis(AS)-associated foam cells and in-flammation,and its possible mechanism.Methods:Expression levels of miR-34b-5p and insulin-like growth factor binding protein-1(IGFBP1)mRNA in serum of 34 AS patients and 20 healthy controls were detected.RAW264.7 macrophages were treated with oxi-dized low-density lipoprotein(ox-LDL)to construct AS foam cell model,and expression levels of miR-34b-5p and IGFBP1 mRNA in foam cells were detected.Interaction between miR-34b-5p and IGFBP1 was verified by dual luciferase reporter gene assay.miR-34b-5p inhibitor(inhibitor),inhibitor negative control(inhibitor-NC),IGFBP1 siRNA plasmid(si-IGFBP1)and siRNA negative control(si-NC)were separately or co-transfected into RAW264.7 macrophages.Lipid deposition ability of foam cells was observed,and levels of intracellular total cholesterol(TC),IL-1β,IL-6 and TNF-α were detected.Results:Compared with healthy controls,miR-34b-5p was highly expressed in serum of AS patients(P<0.05),while expression of IGFBP1 mRNA was lower(P<0.05).ox-LDL treatment significantly increased expression of miR-34b-5p(P<0.05),while significantly reduced expression of IGFBP1 mRNA in RAW264.7 macrophages(P<0.05).Dual luciferase reporter assay showed that IGFBP1 was the target gene of miR-34b-5p.Compared with inhibi-tor-NC group,expression of IGFBP1 protein in RAW264.7 macrophages in inhibitor group was increased significantly(P<0.05).After ox-LDL induction,miR-34b-5p inhibitor inhibited lipid deposition ability of macrophages,and decreased levels of intracellular TC,IL-1β,IL-6 and TNF-α.Interfering expression of IGFBP1 gene could reverse the intervention effect of miR-34b-5p inhibitor on macro-phages by enhance lipid deposition ability of macrophages,and increase levels of intracellular TC,IL-1β,IL-6 and TNF-α.Conclu-sion:Down-regulation of miR-34b-5p expression can inhibit the formation of AS-associated foam cells and inflammatory response,and the mechanism may be realized by targeting up-regulation of IGFBP1 expression.

Objective:To construct a multimodal induction educational system suitable for standardized pediatric residency training bases, and to evaluate its effectiveness, thereby obtaining suggestions for further improvement.Methods:Twelve residents newly enrolled in the 2023 standardized residency training program who commenced their first-year training were included as study subjects. The induction educational system comprised multiple modules: department introduction, training plan and assessment requirements, departmental workflow, routine diagnosis and treatment of major diseases, specialized skills/procedures, and lifestyle guidance. Training materials and methods were tailored to the characteristics of each training module. Checklists were used for supervision and review, and a competency checklist was designed to evaluate residents' mastery of the training at two weeks of induction, which would guarantee the effectiveness of the training. A questionnaire survey, powered by wjx.cn, was used to obtain the experience and suggestions from the residents and ward instructors on induction education, and content ranking analysis was performed on the survey results.Results:The survey revealed that, before starting a new rotation, residents' top three educational needs were departmental workflow, routine diagnosis and treatment of common diseases, and specialized skills/procedures. Residents preferred face-to-face lectures and demonstrations by attending physicians or senior residents; instructors suggested improving relevant materials (such as resident physician manuals and video materials) and face-to-face lectures. The residents considered the current induction educational system to be greatly beneficial in basic theories, treatment principles, basic skills, and auxiliary examination processes.Conclusions:Through the above research, a multimodal induction educational system suitable for the standardized pediatric residency training base in the Peking University First Hospital has been preliminarily established, and suggestions for further improvement have been obtained, which is conducive to further improving the system and residents' post competency.

Objective To investigate the antimicrobial resistance of clinical isolates from elderly patients(≥65 years)in major medical institutions across China.Methods Bacterial strains were isolated from elderly patients in 52 hospitals participating in the CHINET Antimicrobial Resistance Surveillance Program during the period from 2015 to 2021.Antimicrobial susceptibility test was carried out by disk diffusion method and automated systems according to the same CHINET protocol.The data were interpreted in accordance with the breakpoints recommended by the Clinical and Laboratory Standards Institute(CLSI)in 2021.Results A total of 514 715 nonduplicate clinical isolates were collected from elderly patients in 52 hospitals from January 1,2015 to December 31,2021.The number of isolates accounted for 34.3％of the total number of clinical isolates from all patients.Overall,21.8％of the 514 715 strains were gram-positive bacteria,and 78.2％were gram-negative bacteria.Majority(90.9％)of the strains were isolated from inpatients.About 42.9％of the strains were isolated from respiratory specimens,and 22.9％were isolated from urine.More than half(60.7％)of the strains were isolated from male patients,and 39.3％isolated from females.About 51.1％of the strains were isolated from patients aged 65-＜75 years.The prevalence of methicillin-resistant strains(MRSA)was 38.8％in 32 190 strains of Staphylococcus aureus.No vancomycin-or linezolid-resistant strains were found.The resistance rate of E.faecalis to most antibiotics was significantly lower than that of Enterococcus faecium,but a few vancomycin-resistant strains(0.2％,1.5％)and linezolid-resistant strains(3.4％,0.3％)were found in E.faecalis and E.faecium.The prevalence of penicillin-susceptible S.pneumoniae(PSSP),penicillin-intermediate S.pneumoniae(PISP),and penicillin-resistant S.pneumoniae(PRSP)was 94.3％,4.0％,and 1.7％in nonmeningitis S.pneumoniae isolates.The resistance rates of Klebsiella spp.(Klebsiella pneumoniae 93.2％)to imipenem and meropenem were 20.9％and 22.3％,respectively.Other Enterobacterales species were highly sensitive to carbapenem antibiotics.Only 1.7％-7.8％of other Enterobacterales strains were resistant to carbapenems.The resistance rates of Acinetobacter spp.(Acinetobacter baumannii 90.6％)to imipenem and meropenem were 68.4％and 70.6％respectively,while 28.5％and 24.3％of P.aeruginosa strains were resistant to imipenem and meropenem,respectively.Conclusions The number of clinical isolates from elderly patients is increasing year by year,especially in the 65-＜75 age group.Respiratory tract isolates were more prevalent in male elderly patients,and urinary tract isolates were more prevalent in female elderly patients.Klebsiella isolates were increasingly resistant to multiple antimicrobial agents,especially carbapenems.Antimicrobial resistance surveillance is helpful for accurate empirical antimicrobial therapy in elderly patients.

Aim To systematically investigate the ac-tive components,targets,and regulatory pathways of Po-lygonum capitatum in intervening atherosclerosis(AS)through network pharmacology,molecular docking and animal experiments.Methods Active components of Polygonum capitatum and AS-related targets were screened and identified through database searches.Protein-protein interaction(PPI)network analysis was performed using the STRING database,followed by GO and KEGG enrichment analyses via the David plat-form.Molecular docking validation was conducted with AutoDock.An AS model was established in Syrian golden hamsters fed a high-fat diet.Predicted pathways and targets were validated using qPCR,ELISA,and histopathological assessment of aortic and hepatic tis-sues via HE staining.Results Network pharmacology identified 27 potential active components of Polygonum capitatum(primarily flavonoids such as quercetin and luteolin)and 110 drug-disease intersection targets,in-cluding core targets MMP-9,ALB,and AKT1.GO and KEGG analyses enriched 593 and 125 pathways,re-spectively,with the NF-κB inflammatory pathway,TNF signaling pathway and lipid metabolism/atherosclerosis pathways highlighted as key mechanisms.Animal ex-periments demonstrated that Polygonum capitatum im-proved serum lipid profiles(reduced TC,TG,LDL-C)in AS hamsters,suppressed the MMP-9/NF-κB signa-ling pathway(downregulated MMP-9,p65 phosphoryla-tion,TNF-α,and IL-6),and inhibited VSMC synthetic phenotypic transformation(upregulated α-SMA and myocardin)by downregulating MCPIP1.Additionally,Polygonum capitatum ameliorated aortic lesions and he-patic lipid deposition in AS hamsters.Conclusions Polygonum capitatum alleviates AS by synergistically regulating the MMP-9/NF-κB/MCPIP1 axis through flavonoid components,suppressing vascular inflammato-ry cascades and maintaining VSMC contractile pheno-types.This reflects Polygonum capitatum's multi-com-ponent,multi-pathway,and multi-target characteristics in combating AS.

Aim To investigate the effect of Senecio scandens Buch.-Ham on inflammatory pain mediated by mast cell P2X7 receptor.Methods Using the ATP-induced foot inflammatory pain,immunofluores-cence and toluidine blue staining techniques were used to investigate whether Senecio scandens has inhibitory effect on P2X7 receptor on mast cells.Using the calci-um ion imaging experimental technology,to explore whether Senecio scandens inhibit the intracellular cal-cium ion enrichment caused by activation of P2X7 re-ceptor on mouse peritoneal mast cell.The whole-cell patch clamp technique was used to investigate whether senecio scandens could inhibit the inward current in-duced by activation of P2X7 receptor on mouse perito-neal mast cell.Results In vivo,Senecio scandens alle-viate ATP induced inflammatory pain(3.9 g·kg-1:P＜0.05),and significantly inhibited the infiltration of P2X7 receptor-positive mast cells(3.9 g·kg-1:P＜0.05).Knockout of mast cell can reduce the analgesic effect of Senecio scandens(3.9 g·kg-1:P=0.645).In vitro.The experiment results show that senecio scandens can significantly inhibit the calcium influx(300 mg·L-1:P＜0.05;1 g·L-1:P＜0.01;3 g·L-1:P＜0.01)and the inward current mediated by P2X7 receptor in mast cell(1 g·L-1:P＜0.01).Conclusion Senecio scandens alleviate inflammatory pain by inhibiting mast cell P2X7 receptor.

Objective:To construct a perioperative pain nursing protocol for thoracoscopic surgery patients, providing a reference for clinical pain nursing practice.Methods:An evidence-based approach was used to search relevant guidelines and extract the best evidence. The initial draft was created through discussions among the research team, followed by two rounds of Delphi expert consultations. Based on the experts' suggestions, the protocol was revised and the best plan was finalized.Results:A total of 10 guidelines were included, and 22 experts participated in two rounds of consultations. The response rate for the consultation questionnaires was 100.00% (22/22) , with expert authority coefficients of 0.94 and 0.95 for the two rounds, respectively. The coefficient of variation for all indicators in the second round ranged from 0.04 to 0.24. The final pain nursing protocol included four primary indicators: personnel preparation, pain assessment, pain education, and pain intervention, with 10 secondary indicators and 27 tertiary indicators.Conclusions:The constructed perioperative pain nursing protocol for thoracoscopic surgery patients is significant, scientific, comprehensive, and targeted. It provides theoretical support and practical guidance for pain management, helping to reduce postoperative pain in patients.

Objective To observe the value of prenatal ultrasound evaluation on morphology of Sylvian fissure(SF)during the second and third trimesters for screening fetal abnormal cerebral cortical development.Methods Totally 876 fetuses in the second and third trimesters were retrospectively included.Prenatal ultrasound was performed to observe the morphology of fetal SF and whether there was complicated abnormalities of the development of cerebral cortical and other structures.Then prenatal ultrasound was regularly reexamined,and the pregnancy outcome,while the growth and development of newborns were followed up.Results Among 876 fetuses,normal SF morphology was observed in 861 fetuses(861/876,98.29％),while 11 fetuses(11/876,1.26％)had delayed SF development(normal SF morphology but inconsistent with gestational week)and 4 fetuses(4/876,0.46％)had abnormal SF morphology,all complicated with abnormal cerebral cortical development and/or intracranial and extracranial structural malformations,and reexamination of prenatal ultrasound showed that SF morphology was consistent with the gestational week in 4 fetuses,SF morphology still did not match the gestational week in 4 fetuses,and SF morphology was still abnormal in 2 fetuses.Among these 15 fetuses,6 were successfully born and grew well after followed up until 10-15 months,4 were induced labor,while the rest 4(3 with delayed SF development and 1 with abnormal SF morphology)complicated with other severe malformations and 1 with abnormal SF morphology were induced labor or lost to follow-up,hence not undergoing ultrasound re-examination.Conclusion Prenatal ultrasound evaluation on SF morphology during the second and third trimesters had important value for screening fetal abnormal cerebral cortical development.

Postoperative infection of internal fixation of closed fractures the lower limbs in adults represents a devastating complication, characterized by diagnostic challenges, prolonged treatment duration and high disability rates. Current management of these infections faces multiple challenges, such as difficulties in early accurate diagnosis, and various controversies about the treatment plan, leading to poor overall diagnosis and treatment results. To address these issues, based on evidence-based medicine and principles with emphasis on scientific rigor, clinical applicability and innovation, the Trauma Branch of the Chinese Medical Association, Orthopedic Branch of the Chinese Medical Doctor Association, Orthopedics Branch of the Chinese Medical Association, and Trauma Orthopedics and Polytrauma Group of the Resuscitation and Emergency Committee of the Chinese Medical Doctor Association have collaboratively organized a panel of relevant experts to develop the Guideline for diagnosis and treatment of infection after internal fixation of closed lower limb fractures in adults ( version 2025). The guideline proposed 10 recommendations, aiming to provide a foundation for standardized diagnosis and treatment of postoperative infection in adults with closed lower limb fractures.

Acute symptomatic osteoporotic thoracolumbar compression fracture (ASOTLF) can lead to chronic low back pain, kyphosis deformity, pulmonary dysfunction, loss of mobility, and even life-threatening complications. Vertebral augmentation is currently the mainstream treatment method for this condition. In 2019, the Editorial Board of Chinese Journal of Trauma and the Spinal Trauma Group of Orthopedic Surgeons Branch of Chinese Medical Doctor Association collaboratively led the development of Clinical guideline for vertebral augmentation for acute symptomatic osteoporotic thoracolumbar compression fractures. Six years later, with advances in clinical diagnosis and treatment techniques as well as accumulating evidence in related fields, the 2019 guideline requires updating. To this end, the Spinal Trauma Group of Orthopedic Surgeons Branch of Chinese Medical Doctor Association, the Spinal Health Professional Committee of China Human Health Science and Technology Promotion Association, and the Minimally Invasive Orthopedics Professional Committee of Shaanxi Medical Doctor Association have organized experts in the field to develop the Clinical guideline for vertebral augmentation of acute symptomatic osteoporotic thoracolumbar compression fractures ( version 2025) , based on the latest evidence-based medical researches. This guideline incorporates 3 recommendations retained from the 2019 version with updated strength of evidence, along with 12 new recommendations. It provides recommendations from six aspects of diagnosis, pain management, treatment option selection, prevention of postoperative complications, anti-osteoporosis therapy, and postoperative rehabilitation, aiming to provide a reference for standard treatment of vertebral augmentation for ASOTLF in hospitals at all levels.