Objective : To investigate the effectiveness of an extraoral guide plate system targeting the superior and inferior heads of the lateral pterygoid muscle in improving the accuracy of injection therapy for anterior disc displacement (ADD) of the temporomandibular joint (TMJ) with lateral pterygoid myalgia, and to provide a reference for precise clinical treatment. Methods: With approval from the institutional medical ethics committee and informed consent from patients, spiral CT scans were performed on seven patients with ADD accompanied or not accompanied by lateral pterygoid myalgia to acquire craniofacial data. Mimics 21.0 software was used to reconstruct three-dimensional craniofacial structures, identify attachment points of the superior and inferior heads of the lateral pterygoid muscle, and design dual injection paths along with a retention system. Personalized templates were fabricated using digital light procession-based 3D printing. Under the guide plate, a single targeted injection of 20 U of botulinum toxin type A (BTX-A) was administered into both the superior and/or inferior heads of the lateral pterygoid muscle. Immediate postoperative CT scans were conducted to compare actual needle placement with preoperative plans. Pain was assessed using the visual analogue scale (VAS) at 3 days and 1, 2, and 4 weeks postoperatively. Joint clicking was recorded at 2 and 4 weeks, and complications were monitored throughout the duration of the study. Results : A total of 15 sites in 7 patients were injected into the upper / lower head of the lateral pterygoid muscle under the guidance of the guide plate. Under the guide plate, all of the injections achieved an angular deviation within 2.5° (superior head: 2.49° ± 0.17°, inferior head: 2.31° ± 0.16°) and a needle tip positional deviation within 2 mm [superior head: (1.96 ± 0.25) mm, inferior head: (1.65 ± 0.21) mm]. The significant pain improvement rate (defined as ≥3-point reduction in VAS score) increased from 60% (9/15) at day 3 to 85% (13/15) at 2 weeks post-operation, stabilizing at 86.7% (13/15) at 4 weeks post-operation. Joint clicking improvement rates reached 72% (11/15) at 2 weeks post-operation and 75% (11/15) at 4 weeks post-operation. Regarding safety, only one case of injection site swelling and one case of transient paresthesia were observed; both resolved spontaneously within a short period of time. No neurovascular injury events occurred. Conclusion CT-guided guide plate achieves precise targeting design to minimize injection errors in the lateral pterygoid muscle. This technology is effective and safe, and it can provide an anatomically specific and operationally versatile targeted therapy for temporomandibular disorders.

Objective:To investigate the correlation between the expression of the immunohistochemical marker cytokeratin (CK)-19 and the clinical characteristics and prognosis of dual-phenotype hepatocellular carcinoma (DPHCC).Methods:The data of patients diagnosed with hepatocellular carcinoma (HCC) who underwent surgical resection were collected. DPHCC cases were screened by immunohistochemistry, followed up, and grouped. The correlation between the expression of the immunohistochemical marker CK-19 and the clinical pathological characteristics and prognosis of DPHCC was analyzed by statistical methods. The enumeration data were compared using the χ2 test or Fisher's exact probability method between groups. Results:The expression of CK19 was significantly correlated with factors such as the tumor size, histological grade, liver tissue cirrhosis surroundings, microvascular invasion (MVI), and serum carbohydrate antigen 199 (CA-199) levels in DPHCC, and the differences were statistically significant ( P<0.05). There was no significant correlation between the expression of CK19 and the gender, age, tumor necrosis, multiple lesions, liver capsule invasion, serum alpha-fetoprotein (AFP), and immunohistochemical CK7 and mucin 1 (MUC-1) in DPHCC patients, and the differences were not statistically significant ( P>0.05). The results of univariate analysis showed that immunohistochemical CK19 expression, MVI, number of lesions, tumor necrosis, tumor differentiation degree, serum AFP, and carbohydrate antigen 199 levels were related factors affecting the prognosis in DPHCC patients ( P<0.05); while gender, age, capsule invasion, tumor size, and expression of immunohistochemical markers (vascular endothelial growth factor, CK7, MUC-1) were not significantly correlated with the prognosis in DPHCC patients ( P>0.05). The results of multivariate analysis showed that tumor necrosis ( P=0.042, 95% CI: 1.031-5.501) and serum AFP levels were independent risk factors affecting the prognosis in DPHCC patients ( P<0.001, 95% CI: 2.581-24.075). Conclusions:The expression of CK19 is closely related to the prognosis of patients with DPHCC. Patients with high CK19 expression have faster disease progression than those with low CK19 expression. Furthermore, the overall survival rate of patients with high CK19 expression is significantly lower than that of patients with low CK19 expression, which is a risk factor for poor prognosis in patients with DPHCC.

Objective:To explore the clinical efficacy of metoprolol combined with trimetazidine on elderly patients with coronary heart disease(CHD)and chronic heart failure(CHF).Methods:This randomized controlled trial enrolled 120 elderly CHD+CHF patients admitted to Army 73rd Group Military Hospital of Chinese PLA between June 2020 and June 2023.Patients were divided into control group(metoprolol based on routine treatment)and in-tervention group(additional trimetazidine therapy).Each group consisted of 60 patients,treated for 1 month.The clinical efficacy,left ventricular ejection fraction(LVEF),cardiac index(CI),left ventricular end-systolic diame-ter(LVESd),left ventricular end-diastolic diameter(LVEDd),serum levels of brain natriuretic peptide(BNP),high sensitive C-reactive protein(hsCRP),platelet a granule membrane protein-140(GMP-140),intercellular adhesion molecule-1(ICAM-1)and growth differentiation factor 15(GDF-15),and incidence of adverse reac-tions were compared between the two groups.Results:The total effective rate of the intervention group was significant-ly higher than that of the control group(95.00％vs.81.67％,P=0.023).Compared to patients in the control group,those in the intervention group had significant lower LVESd[(35.03±5.14)mm vs.(40.63±3.87)mm],LVEDd[(43.53±4.27)mm vs.(48.36±5.22)mm],levels of BNP[(94.35±7.55)pg/ml vs.(127.86±45.11)pg/ml],hsCRP[(0.91±0.28)mg/L vs.(1.47±0.52)mg/L],GMP-140[(7.14±1.06)μg/L vs.(9.37±1.59)μg/L],ICAM-1[(43.81±5.75)pg/ml vs.(52.74±5.83)pg/ml]andGDF-15[(891.46±62.51)pg/ml vs.(1025.57±110.08)pg/ml],and significant higher LVEF[(55.62±5.11)％vs.(47.35±8.61)％]and CI[(3.41±0.38)L·min-1·m-2 vs.(3.08±0.31)L·min-1·m-2](P＜0.001 all).There was no significant difference in the total inci-dence of adverse reactions between the intervention group and control group(8.33％vs.11.67％,P=0.543).Conclu-sion:Metoprolol combined trimetazidine may relieve myocardial inflammatory response and injury,and inhibit ventricular remodeling,thereby improve cardiac function in elderly patients with CHD and CHF.

With the rapid development of population aging in various countries around the world,the health and elderly care industry has been paid high attention.The standardization of smart health and elderly care technology and services is particularly important.This paper firstly reviewed the policies related to healthy elderly care in China.By analyzing the industrial standards and provincial standards issued,this paper focused on the policies proposed by the Shanghai Municipal Government for the standardization of smart health and elderly care,as well as the researches on the standard system and the construction of standard families.Shanghai group standards in the field of smart health and elderly care were summarized,including the guidelines for the construction of standard systems,elderly care service platforms,community elderly cafeterias,portable health monitoring terminals,indoor sports services,and home-based elderly care safety monitoring.A series of case analyses of the standardized implementation of the above aspects were also provided.Through standardization research and practice in recent years,it has been fully demonstrated that the standard research plays an important leading role in the field of smart health and elderly care.

Objective:To investigate the prognostic value of serum chloride ion concentration in critically ill or clinically stable pa-tients with decompensated cirrhosis.Methods:A retrospective study was conducted among the patients with decompensated cirrhosis who attended the intensive care unit(ICU)and Department of Gastroenterology,The First Hospital of Lanzhou University,from Janu-ary 2017 to January 2022,and the patients were divided into ICU cohort and Gastroenterology cohort.The outcome event for the ICU cohort was in-hospital death.A logistic regression analysis was used to investigate the association between serum chloride levels and ICU mortality rate;the receiver operating characteristic(ROC)curve was plotted and the area under the ROC curve(AUC)was calcu-lated to assess the value of blood chloride level in predicting ICU mortality rate.The patients in the Gastroenterology cohort were fol-lowed up with the outcome event of all-cause mortality rate,and the Cox regression analysis and the Kaplan-Meier analysis were used to investigate the value of blood chloride level in predicting mortality rate.Results:In the ICU cohort,serum chloride ion was signifi-cantly associated with in-hospital mortality in the ICU(odds ratio=0.934,95%CI=0.871-0.993,P=0.035),and blood chlorine had an AUC of 0.687 in predicting in-hospital mortality in the ICU.In the Gastroenterology cohort,serum chloride ion concentration was sig-nificantly associated with mortality rate in the subgroup with a Child-Pugh score of<10(hazard ratio=0.906,95%CI=0.822-0.997,P=0.043),and hypochloremia was associated with a lower survival rate.Conclusion:Hypochloremia is associated with the increase in mortality rate in patients with decompensated cirrhosis.

Objective:To explore the clinical efficacy of metoprolol combined with trimetazidine on elderly patients with coronary heart disease(CHD)and chronic heart failure(CHF).Methods:This randomized controlled trial enrolled 120 elderly CHD+CHF patients admitted to Army 73rd Group Military Hospital of Chinese PLA between June 2020 and June 2023.Patients were divided into control group(metoprolol based on routine treatment)and in-tervention group(additional trimetazidine therapy).Each group consisted of 60 patients,treated for 1 month.The clinical efficacy,left ventricular ejection fraction(LVEF),cardiac index(CI),left ventricular end-systolic diame-ter(LVESd),left ventricular end-diastolic diameter(LVEDd),serum levels of brain natriuretic peptide(BNP),high sensitive C-reactive protein(hsCRP),platelet a granule membrane protein-140(GMP-140),intercellular adhesion molecule-1(ICAM-1)and growth differentiation factor 15(GDF-15),and incidence of adverse reac-tions were compared between the two groups.Results:The total effective rate of the intervention group was significant-ly higher than that of the control group(95.00％vs.81.67％,P=0.023).Compared to patients in the control group,those in the intervention group had significant lower LVESd[(35.03±5.14)mm vs.(40.63±3.87)mm],LVEDd[(43.53±4.27)mm vs.(48.36±5.22)mm],levels of BNP[(94.35±7.55)pg/ml vs.(127.86±45.11)pg/ml],hsCRP[(0.91±0.28)mg/L vs.(1.47±0.52)mg/L],GMP-140[(7.14±1.06)μg/L vs.(9.37±1.59)μg/L],ICAM-1[(43.81±5.75)pg/ml vs.(52.74±5.83)pg/ml]andGDF-15[(891.46±62.51)pg/ml vs.(1025.57±110.08)pg/ml],and significant higher LVEF[(55.62±5.11)％vs.(47.35±8.61)％]and CI[(3.41±0.38)L·min-1·m-2 vs.(3.08±0.31)L·min-1·m-2](P＜0.001 all).There was no significant difference in the total inci-dence of adverse reactions between the intervention group and control group(8.33％vs.11.67％,P=0.543).Conclu-sion:Metoprolol combined trimetazidine may relieve myocardial inflammatory response and injury,and inhibit ventricular remodeling,thereby improve cardiac function in elderly patients with CHD and CHF.

Objective:To investigate the correlation between the expression of the immunohistochemical marker cytokeratin (CK)-19 and the clinical characteristics and prognosis of dual-phenotype hepatocellular carcinoma (DPHCC).Methods:The data of patients diagnosed with hepatocellular carcinoma (HCC) who underwent surgical resection were collected. DPHCC cases were screened by immunohistochemistry, followed up, and grouped. The correlation between the expression of the immunohistochemical marker CK-19 and the clinical pathological characteristics and prognosis of DPHCC was analyzed by statistical methods. The enumeration data were compared using the χ2 test or Fisher's exact probability method between groups. Results:The expression of CK19 was significantly correlated with factors such as the tumor size, histological grade, liver tissue cirrhosis surroundings, microvascular invasion (MVI), and serum carbohydrate antigen 199 (CA-199) levels in DPHCC, and the differences were statistically significant ( P<0.05). There was no significant correlation between the expression of CK19 and the gender, age, tumor necrosis, multiple lesions, liver capsule invasion, serum alpha-fetoprotein (AFP), and immunohistochemical CK7 and mucin 1 (MUC-1) in DPHCC patients, and the differences were not statistically significant ( P>0.05). The results of univariate analysis showed that immunohistochemical CK19 expression, MVI, number of lesions, tumor necrosis, tumor differentiation degree, serum AFP, and carbohydrate antigen 199 levels were related factors affecting the prognosis in DPHCC patients ( P<0.05); while gender, age, capsule invasion, tumor size, and expression of immunohistochemical markers (vascular endothelial growth factor, CK7, MUC-1) were not significantly correlated with the prognosis in DPHCC patients ( P>0.05). The results of multivariate analysis showed that tumor necrosis ( P=0.042, 95% CI: 1.031-5.501) and serum AFP levels were independent risk factors affecting the prognosis in DPHCC patients ( P<0.001, 95% CI: 2.581-24.075). Conclusions:The expression of CK19 is closely related to the prognosis of patients with DPHCC. Patients with high CK19 expression have faster disease progression than those with low CK19 expression. Furthermore, the overall survival rate of patients with high CK19 expression is significantly lower than that of patients with low CK19 expression, which is a risk factor for poor prognosis in patients with DPHCC.

Objective:Super-enhancer-associated genes may be closely related to the progression of osteosarcoma,curcumin exhibits a certain inhibitory effect on tumors such as osteosarcoma.This study aims to investigate the effects of curcumin on osteosarcoma in vitro and in vivo,and to determine whether curcumin can inhibit the progression of osteosarcoma by suppressing the expression of super-enhancer-associated genes LIM and senescent cell antigen-like-containing domain 1(LIMS1),secreted protein acidic and rich in cysteine(SPARC),and sterile alpha motif domain containing 4A(SAMD4A). Methods:Human osteosarcoma cell lines(MG63 cells or U2OS cells)were treated with 5 to 50 μmol/L curcumin for 24,48,and 72 hours,followed by the methyl thiazolyl tetrazolium(MTT)assay to detect cell viability.Cells were incubated with dimethyl sulfoxide(DMSO)or curcumin(2.5,5.0 μmol/L)for 7 days,and a colony formation assay was used to measure in vitro cell proliferation.After treatment with DMSO or curcumin(10,15 μmol/L),a scratch healing assay and a transwell migration assay were performed to evaluate cell migration ability.Real-time reverse transcription polymerase chain reaction(real-time RT-PCR)and Western blotting were used to detect mRNA and protein expression levels of LIMS1,SPARC,and SAMD4A in the cells.An osteosarcoma-bearing nude mouse model was established,and curcumin was administered via gavage for 14 days to assess the impact of curcumin on tumor volume and weight in vivo.Real-time RT-PCR was used to measure mRNA expression levels of LIMS1,SPARC,and SAMD4A in the cancer and adjacent tissues from 12 osteosarcoma patients. Results:After treating cells with different concentrations of curcumin for 24,48,and 72 hours,cell viability were all significantly decreased.Compared with the DMSO group,the colony formation rates in the 2.5 μmol/L and 5.0 μmol/L curcumin groups significantly declined(both P＜0.01).The scratch healing assay showed that,compared with the DMSO group,the migration rates of cells in the 10 μmol/L and 15 μmol/L curcumin groups were significantly reduced.The exception was the 10 μmol/L curcumin group at 24 h,where the migration rate of U2OS cells did not show a statistically significant difference(P＞0.05),while all other differences were statistically significant(P＜0.01 or P＜0.001).The transwell migration assay results showed that the number of migrating cells in the 10 μmol/L and 15 μmol/L curcumin groups was significantly lower than that in the DMSO group(both P＜0.001).In the in vivo tumor-bearing mouse experiment,the curcumin group showed a reduction in tumor mass(P＜0.01)and a significant reduction in tumor volume(P＜0.001)compared with the control group.Compared with the DMSO group,the mRNA expression levels of LIMS1,SPARC,and SAMD4A in the 10 μmol/L and 15 μmol/L curcumin groups were significantly down-regulated(all P＜0.05).Additionally,the protein expression level of LIMS1 in U2OS cells in the 10 μmol/L curcumin group was significantly lower than that in the DMSO group(P＜0.05).Compared with adjacent tissues,the mRNA expression level of SPARC in osteosarcoma tissues was significantly increased(P＜0.00l),while the mRNA expression levels of LIMS1 and SAMD4A did not show statistically significant differences(both P＞0.05). Conclusion:Curcumin inhibits the proliferation and migration of osteosarcoma both in vitro and in vivo,which may be associated with the inactivation of super-enhancer-associated gene LIMS1.

Objective:To understand the serotype distribution, drug resistance and molecular characterization of invasive non-typhoid Salmonella (iNTS) in Guangdong Province from 2018 to 2022 and provide scientific evidence for the prevention and treatment of blood flow infection caused by Salmonella. Methods:Serological identification, antimicrobial susceptibility testing, multilocus sequence typing (MLST), and whole genome sequencing were performed on Salmonella isolated from blood and stool samples in Guangdong from 2018 to 2022. Simultaneously, annotated the sequencing results for drug resistance genes and virulence factors by a microbial gene annotation system. Results:The 136 iNTS strains were divided into 25 serotypes, and Salmonella enteritidis accounted for 38.24% (52/136). The OR of other iNTS serotypes were calculated with Salmonella typhimurium as the control. The OR values of Oreninburg, Rysson, and Pomona serotypes were the highest, which were 423.50, 352.92, and 211.75, respectively. The drug resistance rate of iNTS was 0.74%-66.91%, which was lower than that of non-iNTS (3.90%-77.21%). The main iNTS of drug resistance were ampicillin and tetracycline, with resistance rates of 66.91% (91/136) and 50.00% (68/136), respectively, while the resistance rates to ciprofloxacin (5.88%,8/136), ceftazidime (5.88%,8/136), gentamicin (5.13%,7/136) and cefoxitin (0.74%, 1/136) were relatively low. iNTS carried a variety of drug-resistance genes and virulence factors, but no standard virulence factor distribution has been found. MLST cluster analysis showed that iNTS was divided into 26 sequence types, and ST11 accounted for 38.24% (52/136). Conclusions:The iNTS strains in Guangdong were dominated by Salmonella enteritidis, of which three serotypes, Oreninburg, Rison, and Pomona, may be associated with a higher risk of invasive infection during 2018 to 2022 . iNTS was sensitive to clinical first-line therapeutic drugs (cephalosporins and fluoroquinolones), with highly diverse sequences and clear phylogenetic branches. ST11 was the local dominant clone group.

Objective To study the role of red blood cell distribution width(RDW)in the prognosis evaluation of multidrug-resistant organism(MDRO)pulmonary infection(PI)in patients in intensive care unit(ICU).Methods Patients with MDRO PI in the ICU of a hospital from January 2021 to December 2022 were selected,they were di-vided into good prognosis group and poor prognosis group based on the prognosis.Basic information and serological indicators between two groups of patients were compared,including RDW(RDW coefficient of variation[RDW-CV],RDW standard deviation[RDW-SD]),D-dimer,procalcitonin(PCT),high-sensitivity troponin(TNTsh),N-terminal pro-B-type natriuretic peptide(NT-proBNP),erythrocyte sedimentation rate(ESR),C-reactive protein(CRP),and interleukin-6(IL-6).Univariate t-test and multiple logistic regression were adopted to analyze the cor-relation factors between serological indicators and the prognosis of MDRO PI patients,receiver operating characte-ristic(ROC)curves were used to evaluate the predictive efficacy of RDW on the prognosis of MDRO PI patients.Results A total of 275 cases of MDRO PI were included in analysis,age range from 22 to 99 years old;181 cases(65.8％)were in good prognosis group,94 cases(34.2％)in poor prognosis group.The levels of PCT,D-dimer,RDW-CV,RDW-SD,TNTsh,and NT-proBNP in the poor prognosis group were all higher than those in the good prognosis group,differences were all statistically significant(all P＜0.05).Multivariate logistic regression analysis showed that the increase of RDW-CV(OR-19.011,95％CI[5.247-68.882],P＜0.05)and RDW-SD(OR=13.693,95％CI[3.820-49.087],P＜0.05)were associated with poor prognosis in patients with MDRO PI.ROC curve results showed that the areas under the curve of RDW-CV and RDW-SD were 0.901 and 0.896,respec-tively,with optimal cutoff values of 14.45％and 49.60％,respectively.Conclusion This study suggests that RDW value is closely related to the disease outcome of MDRO PI patients,and is expected to become one of the prog-nostic evaluation indicators,achieve early intervention and risk assessment.