Medical engineering in TCM medical institutions in Guizhou Province was described in terms of its development status and problems in functional positioning,professional title appraisal,unbalanced staff composition and discipline foun-dation.Some suggestions were put forward including determining the functional positioning and management mode of medical engineering institutions,promoting the professional title system for medical engineering staffs,strengthening medical engineering team and enhancing medical engineering discipline.References were provided for the development of medical engineering in TCM medical institutions in Guizhou Province.[Chinese Medical Equipment Journal,2025,46(5):84-90]

Aim Ischemic stroke(IS)is caused by acute ischemia of cerebral blood vessels,leading to brain tissue damage and neuronal apoptosis.The pathogenesis is complex,involving multiple cell death modes such as pyropto-sis,ferroptosis and disulfide death.Disulfide death is a newly discovered form of death that helps to explore the patholog-ical mechanisms of various diseases from a new perspective.The aim of this study is to discover and validate the differen-tial expression of disulfide death-related genes in blood samples of ischemic patients and their association with immune regu-lation.Methods The relevant datasets of clinical patients(GSE16561 and GSE37587)were obtained through online big data.Differentially expressed genes related to disulfide death were identified,and gene enrichment analysis was con-ducted to further explore the potential mechanisms.Subsequently,immune cell infiltration was analyzed to investigate the dysregulation of immune cells in the context of IS.Finally,the accuracy of key genes was verified through ROC curves,column charts,calibration curves,and decision curves,and a disease prediction model was constructed to predict the risk of stroke.Results Based on this dataset,significant differential expression of 9 genes related to disulfide death was identified.Independent external validation was conducted using the microarray dataset GSE58294.Single item compari-sons were performed on these differentially expressed genes in blood samples from 69 IS patients and 23 normal individuals.The results showed that the trends of LRPPRC,MYH9,NDUFA11,PRDX1 and RPN1,the 5 differentially expressed genes,were consistent.Immune infiltration analysis found that differentially expressed genes such as TLN1,MYH9,PRDX1,LRPPRC,NDUFA11 were also strongly correlated with CD8+T cells,activated NK cells,macrophages,and neu-trophils in IS patients.Functional enrichment analysis emphasized the important role of pathways such as focal adhesion,platelet aggregation,and activation in the occurrence and development of diseases.By using a column chart model for risk prediction,it was shown that the accuracy of these differentially expressed genes was good,and the ROC curve AUC value of the optimized combination of disulfide death-related genes could reach 0.844.Further validation through an external dataset(GSE58294)revealed that the ROC curve AUC value optimized for disulfide death-related genes reached 0.989,which had good clinical guidance significance for the risk of IS.Conclusions This study confirmed the existence of 5 disulfide death-related genes in IS patients through a dataset,including upregulation of MYH9 and downregulation of LRP-PRC,NDUFA11,PRDX1 and RPN1.These gene alterations are suggested to influence IS disease progression and prog-nosis through immune inflammation and bleeding risk.

Objective To develop and validate a fast Monte Carlo(MC)-based patient-specific quality assurance(PSQA)tool using the treatment log files that is suitable to be used in the online adaptive radiotherapy for pencil beam scanning proton therapy(PBSPT-ART).Methods The proposed tool first used the delivery log file of a PBSPT plan to reversely reconstruct the PBSPT(rPBSPT)plan,and then used an in-house developed graphic processing unit(GPU)-accelerated virtual particle MC(VPMC)dose engine to calculate the dose distribution of the rPBSPT plan.The rPBSPT dose calculated by VPMC was then compared to the rPBSPT dose calculated by another independent MC dose engine(MCsquare),using 3D gamma analysis to verify the accuracy of VPMC calculation.As a demonstration of the feasibility of developed log file-based PSQA,the VPMC calculated dose of the rPBSPT plan was compared to the pre-delivery second check dose of the corresponding PBSPT plan calculated by MCsquare,using 3D gamma analysis.3D gamma analysis employes a criterion of 2 mm/2%/10%.Twenty patients with different disease sites were representatively selected to validate the efficiency and accuracy of the tool.Results The average calculation time of a rPBSPT plan by VPMC was(5.88±4.00)s in the accuracy verification.Compared to MCsquare,the passing rate of the 3D gamma analysis was 99.47%±0.72%.In the proposed PSQA tool demonstration,the passing rate of comparing the VPMC calculated rPBSPT dose to MCsquare calculated second check dose of the corresponding PBSPT plan was 98.91%±0.92%.Conclusion The accuracy and efficiency of the tool can meet the requirements of PSQA in the online PBSPT-ART workflow.

With the rapid development of generative artificial intelligence(GAI)technologies,their widespread application in academic research and writing is continuously expanding the boundaries of sci-entific inquiry.However,this trend has also raised a series of ethical and regulatory challenges,inclu-ding issues related to authorship,content authenticity,citation accuracy,and accountability.In light of the growing involvement of AI in generating academic content,establishing an open,controllable,and trustworthy ethical governance framework has become a key task for safeguarding research integrity and maintaining trust within the academic community.This expert consensus outlines ethical requirements across key stages of AI-assisted academic writing-including topic selection,data management,citation practices,and authorship attribution.It aims to clarify the boundaries and ethical obligations surrounding AI use in academic writing,ensuring that technological tools enhance efficiency without compromising in-tegrity.The goal is to provide guidance and institutional support for building a responsible and sustainable research ecosystem.

With the rapid development of generative artificial intelligence(GAI)technologies,their widespread application in academic research and writing is continuously expanding the boundaries of sci-entific inquiry.However,this trend has also raised a series of ethical and regulatory challenges,inclu-ding issues related to authorship,content authenticity,citation accuracy,and accountability.In light of the growing involvement of AI in generating academic content,establishing an open,controllable,and trustworthy ethical governance framework has become a key task for safeguarding research integrity and maintaining trust within the academic community.This expert consensus outlines ethical requirements across key stages of AI-assisted academic writing-including topic selection,data management,citation practices,and authorship attribution.It aims to clarify the boundaries and ethical obligations surrounding AI use in academic writing,ensuring that technological tools enhance efficiency without compromising in-tegrity.The goal is to provide guidance and institutional support for building a responsible and sustainable research ecosystem.

Aim To explore the effect of astragalosideⅣ(AS-Ⅳ)on lipopolysaccharide(LPS)-induced po-larization and migration of RAW 264.7 macrophages and the underlying mechanism.Methods 1 mg·L-1 LPS was used to construct cell migration model.Scratch assay was utilized to determine cell migration rate.Immunofluorescence staining was utilized to de-tect the expression and location of F4/80,iNOS and Arg-1.CCK-8 assay was used to determine the viabili-ty of RAW 264.7 cells.Griess assay was used to measure NO content.Molecular docking was used to analyze the interaction between AS-Ⅳ and the core tar-gets such as cGAS and STING protein.Western blot was employed to detect the expression of iNOS,Arg-1,cGAS,STING,NF-κB p65 and p-NF-κB p65 protein.Results AS-Ⅳ significantly inhibited the migration and M1 polarization of RAW 264.7 cells induced by LPS.Moreover,AS-Ⅳ could interact with cGAS and STING protein,especially cGAS.Further Western blot assay showed that AS-Ⅳ significantly downregulated the expression of iNOS,cGAS,STING and p-NF-κB p65 protein.Conclusions AS-Ⅳ could promote mac-rophage M1 to M2 polarization,thereby inhibited mac-rophage migration through restraining the cGAS/STING/NF-κB signaling pathway,which provides a new therapeutic target for AS-Ⅳ to improve the early inflammatory response of AS.

Objective To investigate the therapeutic effects of focused ultrasound and ATP-infrared bioeffect for non-neoplastic epithelial disorders of the vulva(NNEDV),aiming to provide references for the clinical study and selection of individualized treatment plans of NNEDV patients.Methods The clinical data of 278 NNEDV patients attending the gynecology department of some hospital from May 2020 to December 2023 were retrospectively analyzed,who were divided into an observation group receiving focused ultrasound treatment and a control group receiving ATP-infrared bioeffect treatment with the single random grouping mmethod.The observation group enrolled in 143 patients including 84 cases of lichen simplex chronicus(LSC)and 59 cases of vulvar lichen sclerosus(VLS),and the control group had 135 patients including 71 LSC cases and 64 VLS cases.Comparisons were carried out in terms of the therapeutic effect and safety in the two groups,the efficacy for LSC and VLS between and within the two groups,and the clinical symptom scores and the quality of life scores before and after treatment of the two groups.SPSS 23.0 software was used for statistical analysis.Results The two groups had no significant differences in response rate and recurrence rate(P>0.05),while the observation group had the cure rate higher and the complication rate higher than those of the control group(P<0.05).In the observation group,the overall response rates for LSC and VLS were not significantly different(P>0.05);in the control group,the overall response rate for LSC was higher than that for VLS significantly(P<0.05).The cure rate for LSC in the observation group was higher than that in the control group,with the differences being statistically significant(P<0.05);the two groups had no significant differences in the cure rate for VLS(P>0.05).The two groups had significant differences in the skin color socre,vitiligo area scoring index and skin elasticity one month,three months and six months after treatment(P<0.05),with the differences being statistically significant in the tissue structure score three months and six months after treatment(P<0.05);there were no significant differences found between the two groups in the pruritus score one month,three months and six months after treatment and in tissue structure score one month after treatment(P>0.05).In the two groups the differences were all statistically significant in the quality of life score three and six months after treatment(P<0.05);the two groups had significant differences in the quality of life score before and after treatment(P>0.05).Conclusion Focused ultrasound and ATP-infrared bioeffect are both effective for NNEDV.Focused ultrasound gains advantages in restoring the color and tissue structure of vulvar skin,and the physical therapy is the first choice for NNEDV that has failed drug therapy and risks for recurrence and canceration;ATP-infrared bioeffect with a low complication rate can be used for the patients with mild symptoms,cracked skin inflammation or those unable to tolerate ultrasound.[Chinese Medical Equipment Journal,2025,46(6):59-64]

Objective:To explore the clinical value of combination of contrast-enhanced ultrasound(CEUS)and magnetic reso-nance imaging(MRI)in the diagnosis of parotid gland tumors.Methods:167 patients with parotid gland tumors were diagnosed by CEUS and MRI respectively and in combination.With postoperative pathological diagnosis result as the gold standard,the diagnos-tic value of CEUS combined with MRI(CEUS+MRI)was analyzed.Results:171 tumors were confirmed by postoperative pathology in 167 patients,including 143 benign tumors(83.63％)and 28 malignant tumors(16.37％).The benign tumors were mainly pleo-morphic adenoma(65 tumors,45.45％),Warthin tumor(40 tumors,27.97％)and basal cell adenoma(13 tumors,9.09％).Among the malignant tumors,mucoepidermoid carcinoma(7 tumors,25.00％),adenoid cystic carcinoma(6 tumors,21.43％)and acinic cell carcinoma(3 tumors,10.71％)were the most common.CEUS showed 39 cases of malignant parotid gland tumors and 132 cases of benign parotid gland tumors.The sensitivity,specificity and accuracy rate of CEUS were 57.14％,83.92％and 79.53％respectively.The MRI ADC values were manifested as pleomorphic adenoma＞malignant tumor＞Warthin tumor(P＜0.05).MRI showed 53 cases of malignant parotid gland tumors and 118 cases of benign parotid gland tumors,and the sensitivity,specifici-ty and accuracy rate of MRI diagnosis were 67.86％,76.22％and 74.85％respectively.CEUS+MRI revealed 33 cases of malig-nant parotid gland tumors and 138 cases of benign parotid gland tumors,the sensitivity,specificity and accuracy rate of CEUS+MRI diagnosis were 78.57％,92.31％and 90.06％respectively.The specificity and accuracy rate of CEUS+MRI were significantly higher than those of single examination(x2=4.806,13.951,7.348,13.664,allP＜0.05).Conclusion:Both CEUS and MRI have certain clinical value in the diagnosis of parotid gland tumors,and the specificity and accuracy rate of CEUS+MRI are significantly higher than those of single examination.

Medical engineering in TCM medical institutions in Guizhou Province was described in terms of its development status and problems in functional positioning,professional title appraisal,unbalanced staff composition and discipline foun-dation.Some suggestions were put forward including determining the functional positioning and management mode of medical engineering institutions,promoting the professional title system for medical engineering staffs,strengthening medical engineering team and enhancing medical engineering discipline.References were provided for the development of medical engineering in TCM medical institutions in Guizhou Province.[Chinese Medical Equipment Journal,2025,46(5):84-90]

Objective To investigate the role of Sneathia sanguinegens(S.sanguinegens)in the development of unexplained recurrent spontaneous abortion(URSA).Methods A case-control study was conducted to analyze the vaginal flora characteristics of 65 patients with URSA and 18 healthy controls through 16S rRNA gene sequencing.Toxicity profile of S.sanguinegens on human cervical cancer cells(ME-180),human umbilical vein endothelial cells(HUVEC)and human placental choriocarcinoma cells(JEG-3)was analyzed at the cellular level to assess the mechanism of it in adverse pregnancy outcomes.And S.sanguinegens was used to infect C57BL/6J mice to explore the toxic effect on living organisms.Results The relative abundance of Sneathia was increased in patients with URSA compared with healthy controls.It was positively correlated with the number of miscarriages,and was attributed to S.sanguinegens.We also found that S.sanguinegens damaged ME-180,JEG-3 and HUVEC cells.The degree of cellular damage was related to the level of S.sanguinegens added.Intravenous infection with S.sanguinegens caused inflammatory damage in several organs and extramedullary hematopoiesis in the spleen.Conclusion S.sanguinegens is closely related to URSA and should be emphasized in patients with high vaginal bacterial load.