OBJECTIVE: To explore the feasibility of using biomechanical indicators as supplementary evaluation to the Musculoskeletal Tumor Society Scoring System (MSTS) for amputee patients. METHODS: Twenty-four patients who underwent hemipelvectomy between September 2018 and January 2025 were enrolled. There were 15 males and 9 females with an average age of 61.4 years (range, 45-76 years). Participants performed gait tests at self-selected speeds using three assistive devices (prosthesis, single crutch, and double crutches). Motion data were analyzed using a customized OpenSim model. Biomechanical indicators of the intact limb exhibiting common characteristics were screened through correlation and sensitivity analyses. Test-retest reliability [interclass correlation coefficient (ICC)] of selected parameters was assessed to evaluate their potential as MSTS score supplements. RESULTS: All biomechanical indicators showed significant positive correlations with MSTS scores across assistive devices ( P<0.05). Seven indicators demonstrated |Pearson correlation coefficients|>0.8, including walking speed, maximum hip angle, maximum hip moment, peak hip flexion moment, peak hip extension moment, hip flexion impulse, and hip extension impulse. Among these, maximum hip moment, hip flexion impulse, and hip extension impulse exhibited significant between-group differences in adjacent MSTS levels ( P<0.05), indicating high sensitivity, along with excellent test-retest reliability (ICC>0.74, P<0.01). CONCLUSION Biomechanical indicators statistically qualify as potential supplements to MSTS scoring. Maximum hip moment, hip flexion impulse, and hip extension impulse demonstrate particularly high sensitivity to MSTS score variations.
Humans ; Male ; Middle Aged ; Female ; Aged ; Biomechanical Phenomena ; Amputees/rehabilitation* ; Feasibility Studies ; Artificial Limbs ; Reproducibility of Results ; Amputation, Surgical ; Crutches ; Gait

Gastric cancer with peritoneal metastasis (GCPM) is a common and lethal manifestation of advanced gastric cancer, with a median survival of only 5-11 months. This consensus was developed by 30 experts from Asia (China, Japan, Korea, and Singapore) using the Delphi method and the GRADE evidence grading system. A total of 29 statements were formulated, covering the diagnosis and assessment of GCPM, indications for laparoscopic exploration and NIPS (normothermic intraperitoneal and systemic treatment), treatment regimens, prevention and management of complications, criteria for conversion surgery, and postoperative intraperitoneal therapy. The consensus aims to standardize clinical practice and improve the prognosis of patients with GCPM.

Schizophrenia,a severe mental illness characterized by high disability and chronicity,imposes a heavy disease burden on society and patients in China.Community-based management plays a crucial role in the long-term and comprehensive management of patients with schizophrenia.Through years of exploration,community-based management models—primarily focused on case management,assertive community treatment(ACT),and crisis intervention—have proven beneficial to the overall recovery of patients.However,notable differences exist in the implementation of these models between domestic and international practices.Given this context,we systematically analyze domestic and international research to examine the characteristics of different management models and the causes of the differences.Based on this analysis,we propose targeted recommendations for improving community-based management of schizophrenia in China.Regarding case management,a tiered approach should be adopted according to regional economic conditions and resource availability to optimize the efficiency of resource allocation.For ACT,we suggest developing a family-centered integrated intervention framework adapted to China's specific context.Finally,regarding crisis intervention,a collaborative family-community-police response mechanism should be established,complemented by enhanced professional training and streamlined referral procedures.We advocate enhancing resource allocation and theoretical research,along with broader involvement of all sectors of society,to jointly optimize the community-based management model for schizophrenia in China.

Objective:To establish ultra performance liquid chromatography (UPLC) characteristic chromatogram of Pulsatilla chinensis; To provide reference for the origin identification and quality control of Pulsatilla chinensis. Methods:UPLC Method was adopted. The determination was performed on a column of Agilent SB C18 (2.1 mm×100 mm, 1.8 μm) . The mobile phase was acetonitrile-methanol (2:1) -0.1% phosphoric acid solution by fradient elution at a flow rate of 0.30ml/min. The column temperature was 30 ℃. The detection wavelength was 215 nm. The injection volume was 2 μl. The common counterfeit products and medicinal herbs of Pulsatilla chinensis from different areas were evaluated by comparison of characteristic chromatogram, principal component analysis (PCA) and orthogonal partial least squares discriminant analysis (OPLS-DA). Results:There were 9 characteristic peaks in the characteristic chromatogram of Pulsatilla chinensis, and 8 common peaks were identified by high resolution mass spectrometry and comparison of reference materials. Through PCA analysis, it was possible to clearly distinguish the medicinal herbs of Pulsatilla chinensis from different areas. Combined with OPLS-DA analysis, it was found that peak 2, peak 3, peak 6 were the main markers of Pulsatilla chinensis from different producing areas. Conclusion:The established method has good specificity, repeatability and durability, and it can effectively distinguish the common counterfeits of Pulsatilla chinensis, and provide the basis of quality control and selection of origin for Pulsatilla chinensis.

Objective:To establish the ultra high performance liquid chromatography (UPLC) fingerprints of Mume flos at different flowering stages; To provide reference for the quality research of Mume flos.Methods:The fingerprints of Mume flos were established by UPLC method, and the common peaks were identified by high performance liquid chromatography high resolution mass spectrometry (LC-MS). Chemometrics analysis was carried out with the fingerprints' common peak area of plum blossom at different flowering stages as a variable. Semiquantitative analysis of changes in flavonoids and phenolic acids in Mume flos at different flowering stages was conduct using peak area calculation method.Results:Totally 31 common peaks were identified in the fingerprints of plum blossom medicinal materials at different flowering stages and 9 components were identified. Clustering analysis (HCA) and principal component analysis (PCA) both classified plum blossom medicinal herbs at different flowering stages into three categories. Among them, there were significant differences between the groups at the bud stage, blooming period, and final flowering period, while the differences between the groups at blooming period and final flowering period were relatively small. The orthogonal partial least squares discriminant analysis (OPLS-DA) screened 16 different components with VIP>1.0. The contents of phenolic acids in different flowering stages were as follows: bud stage>blooming period>final flowering period, while the contents of flavonoids were as follows: blooming period>final flowering period>bud stage.Conclusions:This method is simple and reliable, and can provide reference for the quality evaluation of plum blossom medicinal materials at different flowering stages.

BACKGROUND:Intervertebral disc degeneration is clinically considered to be the main cause of low back pain,but due to the unclear pathogenesis of intervertebral disc degeneration,there is still a lack of effective means to delay the progression of the disease.Single-cell RNA sequencing technology can amplify and sequence mRNA at the single-cell level,reveal the gene expression intensity of a single cell,discover different cell subsets in tissues according to the heterogeneity of cells,study the pathogenesis of intervertebral disc degeneration at the molecular level,and provide a new theoretical basis for its early diagnosis and treatment. OBJECTIVE:To introduce the basic principles of single-cell RNA sequencing technology and review the research progress of single-cell RNA sequencing technology in intervertebral disc degeneration in recent years. METHODS:A computer was used to search PubMed,Web of Science,CNKI and WanFang databases for the literature published from 2012 to 2022.Key words were"single-cell RNA sequencing,intervertebral disc degeneration,sequencing Technology"in Chinese and English.Duplicate,poor-quality and irrelevant articles were excluded;a total of 70 articles were eventually included. RESULTS AND CONCLUSION:(1)We identified new cell subsets such as homeostatic chondrocytes,hypertrophy chondrocyte-like nucleus pulposus cells and fibrous nucleus pulposus cells,identified the marker genes and transcription factors of these cell subsets,and described the functions,differentiation paths and cell fate of these cell subsets during the development and progression of intervertebral disc degeneration,and proposed the concept of progenitor nucleus pulposus cells.A cell subpopulation with progenitor nucleus pulposus cells properties was identified and its effectiveness in treating intervertebral disc degeneration was verified in mice.(2)Fibro chondrocyte-like annulus fibrosus cells and annulus fibrosus stem cells with both cartilage and fiber properties were identified,and a new type of composite hydrogel was prepared by combining fibrous cartilage inducers silk fibroin and hyaluronic acid in vitro.Experiments in mice demonstrated that this hydrogel could repair both annulus fibrosus tissue and cartilage matrix,and was remarkably effective in the treatment of intervertebral disc degeneration.(3)Regulatory chondrocytes were found in endplate cartilage.Two distinct fates in the progression of intervertebral disc degeneration were analyzed and the differential genes in the two fates were identified.Intercellular communication analysis indicated that regulatory chondrocytes interact with endothelial cells to promote angiogenesis.(4)Immune cells such as macrophages,T cells,myeloid progenitor cells and neutrophils were identified in the degenerated intervertebral disc tissues,demonstrating the existence of immune response during intervertebral disc degeneration.It was found that apolipoprotein induced the polarization of macrophages M1 and M2 subtypes,and this polarization process affected the activity of progenitor nucleus pulposus cells by amplifying the inflammatory response through the MIF signaling pathway.

Objective:To investigate the long-term therapeutic effects and safety of renal denervation (RDN) on hypertensive patients with different cardiovascular risks, as well as its impact on adverse events, cardiovascular death and all-cause mortality.Methods:This was a single-center, single-arm, real-world retrospective study. Patients with refractory hypertension who underwent RDN at Tianjin First Central Hospital from July 6, 2011 to December 23, 2015 were enrolled and divided into either a high or intermediate-low risk group based on baseline cardiovascular risk. The treatment responsiveness of hypertensive patients with different cardiovascular stratification to RDN was assessed by comparing the results of office blood pressure, home blood pressure, and 24-h ambulatory blood pressure monitoring at 1, 5, and 11 years after RDN. Long-term safety of RDN was assessed by creatinine, and estimated glomerular filtration rate (eGFR) at 1 and 11 years after RDN. In addition, the total defined daily dose (DDD) of antihypertensive medications and the incidence of long-term adverse events, cardiovascular deaths, and all-cause deaths after RDN were followed up 11 years after RDN in person or by telephone.Results:A total of 62 patients with refractory hypertension, aged (50.2±15.0) years, of whom 35 (56.5%) were male, were included. There were 35 cases in high-risk group and 27 cases in low and medium risk group. The decrease in clinic systolic blood pressure (high risk vs. low-medium risk: (-38.0±15.1) mmHg vs. (-25.0±16.6) mmHg(1 mmHg=0.133kPa), P=0.002), home self-measured systolic blood pressure ((-28.4±12.7) mmHg vs. (-19.7±13.1) mmHg, P=0.011) and clinic systolic blood pressure 11 years after RDN ((-43.0±18.4) mmHg vs. (-27.8±17.9) mmHg, P=0.003) in the high-risk group was significantly higher than that in the low-medium risk group. The differences in heart rate and the decrease in total DDD number of antihypertensive drugs between the two groups were not statistically significant (all P>0.05). Creatinine and eGFR levels in the two groups at 1 and 11 years after RDN were not statistically significant when compared with the baseline values (all P>0.05). The cumulative cardiovascular mortality rate was 1.6% (1/62) and 8.1% (5/62), and the cumulative all-cause mortality rate was 3.2% (2/62) and 11.3% (7/62) at 5 and 11 years after RDN, respectively. The differences in the incidence rate of adverse events, cardiovascular mortality, and all-cause mortality rate between the two groups were not statistically significant (all P>0.05). Conclusions:RDN has long-term antihypertensive effect and good safety. Hypertensive patients who belong to the high-risk stratification of cardiovascular risk may respond better to RDN treatment.

Objective To establish the ultra-high performance liquid chromatography(UPLC)chromatographic fingerprint of Notopterygii Rhizoma et Radix;To determine the contents of ferulic acid,nodakenin,ammijin,notopterol,isoimperatorin and volatile oil of Notopterygii Rhizoma et Radix from different producing areas;To provide reference for quality evaluation of Notopterygii Rhizoma et Radix.Methods Waters BEH C18 chromatographic column(2.1 mm×150 mm,1.7 μm)was used,with mobile phase acetonitrile-0.02%formic acid aqueous solution gradient elution,flow rate 0.25 mL/min,column temperature 25℃,detection wavelength 330 nm,injection volume 2 μL.UPLC fingerprints of 25 batches of Notopterygii Rhizoma et Radix were established,and the similarity analysis and chemometrics analysis were carried out.The contents of ferulic acid,nodakenin,ammijin,notopterol and isoimperatorin were determined simultaneously,and the contents of volatile oil was determined by steam distillation method.Results Totally 23 common fingerprint peaks were calibrated,11 known components were identified.According to the results of the cluster analysis and principal component analysis,25 batches of Notopterygii Rhizoma et Radix samples were divided into 3 categories,and the 6 potential differential components were screened out by orthogonal partial least squares-discriminant analysis(OPLS-DA).The results showed that the contents of notopterol and volatile oil from Sichuan Province were higher than those from Gansu Province and Qinghai Province.Conclusion The method established in the study is accurate and reliable,which can provide scientific basis and reference for the quality evaluation and control of Notopterygii Rhizoma et Radix.

Objective:To investigate the recent epidemic trends and spatiotemporal distribution characteristics of gonorrhea in China, and to provide a reference for precise prevention and control of gonorrhea.Methods:Data on reported cases of gonorrhea in China (not including Hongkong, Macau and Taiwan regions of China) were collected from the Infectious Diseases Surveillance System of Chinese Disease Prevention and Control Information System from 2018 to 2023. The trends in reported incidence rates of gonorrhea in China were analyzed using the Joinpoint regression model. Global spatial autocorrelation analysis with the Moran's index and global G-statistic, as well as local spatial autocorrelation analysis, were employed to explore the clustering patterns and hotspot regions of gonorrhea at the county level. In the spatiotemporal scanning analysis, a Poisson distribution model was employed to identify clusters of gonorrhea cases.Results:The reported incidence rates of gonorrhea in China decreased from 9.59 per 100 000 in 2018 to 7.35 per 100 000 in 2023, with an average annual percent change of -4.9%, but this decreasing trend was not statistically significant ( P = 0.11). The reported incidence rates of gonorrhea at the county level in China exhibited a significant positive global spatial autocorrelation, with the global Moran's indices ranging from 0.39 to 0.60 (all P < 0.001) ; the Getis-Ord general G test statistic Z (G) values were all greater than 1.96, indicating a high-value clustering pattern of gonorrhea cases. The local spatial autocorrelation analysis showed that hotspot regions were predominantly distributed in southeastern coastal areas and southwestern China. A total of 70 clusters were identified through the spatiotemporal scanning analysis, and mainly located in southeastern coastal areas and southwestern China. Conclusions:In recent 6 years, the overall reported incidence rates of gonorrhea in China showed a fluctuating decline; there was a significant spatiotemporal clustering characteristic with regard to gonorrhea epidemic at the county level in China, and the hotspot regions were basically consistent with the spatiotemporal clusters, which were mainly distributed in southeastern coastal areas and southwestern China. Further investigation into the causes and precise prevention and control measures are needed.

Objective:To explore the efficacy and safety of Neuroform Atlas stent-assisted coil embolization in ruptured anterior communicating wide-necked aneurysms.Methods:Thirty-two patients with ruptured anterior communicating wide-necked aneurysms accepted Neuroform Atlas stent assisted coil embolization in Department of Neurosurgery, People's Hospital Affiliated to Shandong First Medical University from January 2022 to June 2023 were chosen. DSA was performed immediately after surgery, and aneurysm embolization was assessed using Raymond grading. Prognoses were assessed by modified Rankin Scale (mRS, mRS scores≤2 as good prognosis and mRS scores>2 as poor prognosis) at last follow-up. DSA was performed again 6 months after surgery to assess the aneurysm healingResults:Neuroform Atlas stents were successfully implanted in all 32 patients; Postoperative DSA showed that aneurysm embolization reached Raymond grading I in all 32 patients(100%). No such complications as in-stent thrombosis, cerebral vasospasm, or poor opening of the stent were noted excepted for one with intraoperative aneurysm rupture hemorrhage. At the last follow-up, 31 patients had good prognosis and 1 had poor prognosis; in 22 patients underwent DSA re-examination, Raymond grading I was noted in 20 patients (90.91%) and grading II in 2 (9.09%).Conclusion:Neuroform Atlas stent-assisted coil embolization for ruptured anterior communicating wide-necked aneurysms seems safe and effective.