1.Legislative implications for China from the U.S. Workplace Violence Prevention for Health Care and Social Service Workers Act
Xuechun WANG ; Min ZHANG ; Chuning HE ; Yuting TANG ; Jing WU
China Occupational Medicine 2025;52(3):330-335
Objective To put forward relevant national legislative proposals for preventing workplace violence (WPV) in the healthcare industry by comparing the current legal practices of China and the United States. Methods The Workplace Violence Prevention for Health Care and Social Service Workers Act (hereinafter referred to as the "Act") of the United States was translated and analyzed. The relevant normative legal documents in China were systematically reviewed to compare the legislative differences in the prevention and control of WPV against health care workers. Results The Act aims to establish an employer-driven legal framework for WPV prevention and control. China has no specific legislation for WPV, but has established partial legislation for protecting healthcare workers from external violence through various legal practices. The "Act" regards WPV as an occupational hazard and adopts the priority control order to carry out the prevention and control of WPV. In contrast, China's legislation for WPV approach emphasizes public security and undermines occupational health, treating WPV merely as a work-related injury or accident with limited protection. This gap reveals divergent priorities for legal interests. Conclusion China should integrate WPV prevention and control into the occupational health legal framework through revising existing laws, advancing dedicated legislation, and ratifying relevant international conventions, to strengthen the occupational health legal system. All stakeholders should clarify the responsibilities for WPV prevention and control of healthcare workers, and ensure comprehensive legislative response.
2.Rules of moxibustion for low back pain by ZHOU Meisheng based on data mining and knowledge graph technology.
Chi WANG ; Caifeng ZHU ; Jiayu ZHANG ; Bingyuan ZHOU ; Xiaoyu CHEN ; Le CHENG ; Miaomiao XIE ; Xuechun DING
Chinese Acupuncture & Moxibustion 2025;45(6):823-833
OBJECTIVE:
To analyze the rules of moxibustion for low back pain by ZHOU Meisheng by using data mining and knowledge graph technology.
METHODS:
Taking the medical cases of moxibustion for low back pain from ZHOU Meisheng's legacy manuscripts and existing works as the research objects, information on disease types, symptoms, tongue manifestations, pulse conditions, syndrome patterns, moxibustion methods and acupoints were collected. Frequency statistics and community analysis were conducted by the ancient and modern medical record cloud platform V 2.3.7, cluster analysis of high-frequency acupoints was performed by SPSS26.0, association rule analysis of high-frequency acupoints was performed by SPSS Modeler 18.0, and the generated linked data were imported into Cytoscape 3.9.1 for complex network analysis. Knowledge graph of moxibustion for low back pain by ZHOU Meisheng was constructed based on the results of data mining. The data storage and display of knowledge graph were realized through the Neo4j 3.5.25 graph database, and the Cypher query language was used for knowledge graph retrieval and discovery.
RESULTS:
A total of 219 medical cases were collected, involving 14 disease types, 85 related clinical symptoms, 5 related TCM syndrome types, and 6 moxibustion methods. The acupoints were mostly attributed to the governor vessel, the bladder meridian of foot-taiyang, non-meridian and non-acupoint areas. The core prescription of acupoints derived from complex network analysis included tender points, Shenshu (BL23), Jinsuo (GV8), Yinjiao (CV7), Yaoyangguan (GV3), Yanglingquan (GB34), which were largely coincides with high-frequency acupoints. Cluster analysis obtained 4 cluster combinations. Community analysis yielded 6 communities, each corresponding to different acupoints.The constructed knowledge graph contained 187 nodes and 696 relationships, by retrieving clinical elements related to low back pain, the disease-moxibustion association graph, disease-acupoint association graph, accompanying symptom-acupoint association graph and syndrome type-matching point association graph were obtained.
CONCLUSION
When treating low back pain with moxibustion, ZHOU Meisheng adopts the principle of promoting circulation, distinguishing diseases to determine the treatment, selecting acupoints according to the diseases, and matching points according to the symptoms.And taking tender points, Shenshu (BL23), Jinsuo (GV8), Yinjiao (CV7), Yaoyangguan (GV3), Yanglingquan (GB34) as core acupoints, combined with tenderness point selection, acupoint selection based on meridian and zangfu syndrome differentiation, "sunshine area" acupoint selection, yin-yang acupoint matching. Additionally, he skillfully employs special points, such as Zhongzhu (KI15) and ear tips, pays attention to the reform of moxibustion tools, and innovates the moxibustion techniques, using distinctive moxibustion tools and methods to treat low back pain.
Moxibustion/methods*
;
Humans
;
Data Mining
;
Low Back Pain/history*
;
Acupuncture Points
;
History, Ancient
;
Female
;
China
;
Male
;
Adult
;
Middle Aged
3.Crigler-Najjar syndrome type Ⅱ complicated with gallbladder stones:A case report and literature review
Xuechun WANG ; Meng ZHANG ; Qibo HU ; Xin TIAN ; Xue SHAO ; Guanghua CHE
Journal of Jilin University(Medicine Edition) 2025;51(3):785-789
Crigler-Najjar syndrome(CNS)is an autosomal recessive genetic disorder caused by mutations in the UGT1A1 gene.This author retrospectively analyzes the clinical data of one patient presenting with postnatal hyperbilirubinemia,who was genetically diagnosed with CNS.Her clinical course,genetic characteristics,diagnostic and therapeutic approaches are discussed to enhance clinicians'understanding of this condition.The patient exhibited recurrent jaundice due to elevated unconjugated bilirubin(UCB)levels since birth.During this period,the gallstones were identified and surgically removed,yet her bilirubin levels did not improve.In March 2024,the patient presented to our hospital and underwent genetic testing via a third-party facility.The results revealed two risk variants in the UGT1A1 gene.After one week of oral phenobarbital administration,her UCB levels decreased by approximately 47%,confirming a diagnosis of CNS type Ⅱ.The patient is currently under active follow-up with regular monitoring of bilirubin levels.For the infants and children presenting with persistent,fluctuating,non-hemolytic,and non-hepatitic hyperbilirubinemia since birth,early genetic testing should be prioritized to establish the definitive diagnosis.
4.Endomitosis: a new cell fate in the cell cycle leading to polyploidy in megakaryocytes and hepatocytes.
Qi-Hua HUA ; Xuechun ZHANG ; Ruifeng TIAN ; Zhigang SHE ; Zan HUANG
Journal of Zhejiang University. Science. B 2025;26(9):843-862
Megakaryocytes and hepatocytes are unique cells in mammals that undergo polyploidization through endomitosis in terminal differentiation. Many polyploidization regulators and underlying mechanisms have been reported, most of which are tightly coupled with development, organogenesis, and cell differentiation. However, the nature of endomitosis, which involves successful entry into and exit from mitosis without complete cytokinesis, has not yet been fully elucidated. We highlight that endomitosis is a new cell fate in the cell cycle, and tetraploidy is a critical stage at the bifurcation of cell fate decision. This review summarizes the recent research progress in this area and provides novel insights into how cells manipulate mitosis toward endomitosis. Endomitotic cells can evade the tetraploidy restrictions and proceed to multiple rounds of the cell cycle. This knowledge not only deepens our understanding of endomitosis as a fundamental biological process but also offers new perspectives on the physiological and pathophysiological implications of polyploidization.
Hepatocytes/physiology*
;
Megakaryocytes/physiology*
;
Humans
;
Polyploidy
;
Animals
;
Cell Cycle/physiology*
;
Cell Differentiation
;
Mitosis/physiology*
5.Abnormal collagen deposition mediated by cartilage oligomeric matrix protein in the pathogenesis of oral submucous fibrosis.
Yafei XIONG ; Xuechun LI ; Bincan SUN ; Jie ZHANG ; Xiaoshan WU ; Feng GUO
International Journal of Oral Science 2025;17(1):25-25
Abnormal accumulation of collagen fibrils is a hallmark feature of oral submucous fibrosis (OSF). However, the precise characteristics and underlying mechanisms remain unclear, impeding the advancement of potential therapeutic approaches. Here, we observed that collagen I, the main component of the extracellular matrix, first accumulated in the lamina propria and subsequently in the submucosa of OSF specimens as the disease progressed. Using RNA-seq and Immunofluorescence in OSF specimens, we screened the cartilage oligomeric matrix protein (COMP) responsible for the abnormal collagen accumulation. Genetic COMP deficiency reduced arecoline-stimulated collagen I deposition significantly in vivo. In comparison, both COMP and collagen I were upregulated under arecoline stimulation in wild-type mice. Human oral buccal mucosal fibroblasts (hBMFs) also exhibited increased secretion of COMP and collagen I after stimulation in vitro. COMP knockdown in hBMFs downregulates arecoline-stimulated collagen I secretion. We further demonstrated that hBMFs present heterogeneous responses to arecoline stimulation, of which COMP-positive fibroblasts secrete more collagen I. Since COMP is a molecular bridge with Fibril-associated collagens with Interrupted Triple helices (FACIT) in the collagen network, we further screened and identified collagen XIV, a FACIT member, co-localizing with both COMP and collagen I. Collagen XIV expression increased under arecoline stimulation in wild-type mice, whereas it was hardly expressed in the Comp-/- mice, even with under stimulation. In summary, we found that COMP may mediates abnormal collagen I deposition by functions with collagen XIV during the progression of OSF, suggesting its potential to be targeted in treating OSF.
Oral Submucous Fibrosis/pathology*
;
Cartilage Oligomeric Matrix Protein/genetics*
;
Animals
;
Mice
;
Humans
;
Fibroblasts/metabolism*
;
Collagen Type I/metabolism*
;
Arecoline/pharmacology*
;
Mouth Mucosa/metabolism*
;
Cells, Cultured
;
Fluorescent Antibody Technique
6.Characteristics of respiratory syncytial virus infection in children in Pudong New Area, Shanghai, 2013‒2023
Qiumiao YU ; Chuchu YE ; Li ZHANG ; Rongxin WU ; Xuechun ZHANG ; Bing ZHAO ; Yuanping WANG
Shanghai Journal of Preventive Medicine 2025;37(5):410-415
ObjectiveTo investigate the infection characteristics of respiratory syncytial virus (RSV) in children with acute respiratory tract infection (ARI) in Pudong New Area, Shanghai, from 2013 to 2023, so as to provide an evidence for the prevention and control of RSV in Shanghai. MethodsChildren who sought medical care at sentinel healthcare facilities in Pudong New Area, Shanghai, between January 2013 and December 2023 and met the case definition of ARI were included in the study. Nasopharyngeal swab samples were collected and tested for viral pathogens using real-time fluorescene PCR, and the clinical information of whom was collected simultaneously. ResultsA total of 4 980 children were included in the ARI surveillance, among whom 231 tested positive for RSV, with an overall detection rate of 4.64%. Of these, 106 cases were type A and 125 were type B. From 2013 to 2023, the detection rate of RSV in children showed an overall trend of initial increase followed by a decline, with higher detection rates in autumn and winter and lower rates in spring and summer. The RSV detection rate gradually decreased with age, with the highest rate observed in children <1 year old, accounting for 16.33% (80/490) of RSV-detection cases. Cough was the most common clinical symptom. Among the RSV-positive cases, 36 involved co-infection with another virus, 6 co-infected with three viruses, and 1 with mixed infection of four viruses. The most frequent co-infection was RSV and human coronavirus. ConclusionChildren under 1 year of age are more susceptible to RSV infection, with cough being the predominant symptom. RSV infection in Pudong New Area, Shanghai, mainly occurs in winter. Targeted prevention and control measures should be taken for children under 1 year old during the winter season to reduce the risk of both RSV infection and co-infection with human coronavirus and influenza virus.
7.Identification and drug sensitivity analysis of key molecular markers in mesenchymal cell-derived osteosarcoma
Haojun ZHANG ; Hongyi LI ; Hui ZHANG ; Haoran CHEN ; Lizhong ZHANG ; Jie GENG ; Chuandong HOU ; Qi YU ; Peifeng HE ; Jinpeng JIA ; Xuechun LU
Chinese Journal of Tissue Engineering Research 2025;29(7):1448-1456
BACKGROUND:Osteosarcoma has a complex pathogenesis and a poor prognosis.While advancements in medical technology have led to some improvements in the 5-year survival rate,substantial progress in its treatment has not yet been achieved. OBJECTIVE:To screen key molecular markers in osteosarcoma,analyze their relationship with osteosarcoma treatment drugs,and explore the potential disease mechanisms of osteosarcoma at the molecular level. METHODS:GSE99671 and GSE284259(miRNA)datasets were obtained from the Gene Expression Omnibus database.Differential gene expression analysis and Weighted Gene Co-expression Network Analysis(WGCNA)on GSE99671 were performed.Functional enrichment analysis was conducted using Gene Ontology and Kyoto Encyclopedia of Genes and Genomes separately for the differentially expressed genes and the module genes with the highest positive correlation to the disease.The intersection of these module genes and differentially expressed genes was taken as key genes.A Protein-Protein Interaction network was constructed,and correlation analysis on the key genes was performed using CytoScape software,and hub genes were identified.Hub genes were externally validated using the GSE28425 dataset and text validation was conducted.The drug sensitivity of hub genes was analyzed using the CellMiner database,with a threshold of absolute value of correlation coefficient|R|>0.3 and P<0.05. RESULTS AND CONCLUSION:(1)Differential gene expression analysis identified 529 differentially expressed genes,comprising 177 upregulated and 352 downregulated genes.WGCNA analysis yielded a total of 592 genes with the highest correlation to osteosarcoma.(2)Gene Ontology enrichment results indicated that the development of osteosarcoma may be associated with extracellular matrix,bone cell differentiation and development,human immune regulation,and collagen synthesis and degradation.Kyoto Encyclopedia of Genes and Genomes enrichment results showed the involvement of pathways such as PI3K-Akt signaling pathway,focal adhesion signaling pathway,and immune response in the onset of osteosarcoma.(3)The intersection analysis revealed a total of 59 key genes.Through Protein-Protein Interaction network analysis,8 hub genes were selected,which were LUM,PLOD1,PLOD2,MMP14,COL11A1,THBS2,LEPRE1,and TGFB1,all of which were upregulated.(4)External validation revealed significantly downregulated miRNAs that regulate the hub genes,with hsa-miR-144-3p and hsa-miR-150-5p showing the most significant downregulation.Text validation results demonstrated that the expression of hub genes was consistent with previous research.(5)Drug sensitivity analysis indicated a negative correlation between the activity of methotrexate,6-mercaptopurine,and pazopanib with the mRNA expression of PLOD1,PLOD2,and MMP14.Moreover,zoledronic acid and lapatinib showed a positive correlation with the mRNA expression of PLOD1,LUM,MMP14,PLOD2,and TGFB1.This suggests that zoledronic acid and lapatinib may be potential therapeutic drugs for osteosarcoma,but further validation is required through additional basic experiments and clinical studies.
8.Analysis of the current status and influencing factors of cognitive function and sleep quality of elderly people in Shanghai community
Yanli ZHANG ; Meng WANG ; Xuechun WANG ; Shanshan HUANG ; Jiaoqi REN ; Houguang ZHOU
Chinese Journal of Clinical Medicine 2025;32(1):58-64
Objective To analyze the cognitive function and sleep quality of the elderly in Shanghai community, and explore the related influencing factors. Methods A stratified cluster random sampling method was used to select 8 community health centers in Shanghai for a questionnaire survey, including 3 677 elderly individuals who completed the “Comprehensive Health Status Survey of Elderly Residents in Shanghai” from September 2023 to November 2023. Basic information of the elderly was collected, including age, gender, education level, smoking, drinking, mahjong playing behavior, and exercise habits. The Pittsburgh sleep quality index (PSQI) was used to assess the sleep quality of the elderly, subjective cognitive decline (SCD) self-assessment questionnaire and Mini-Mental State Examination (MMSE) were used to evaluate cognitive function, while the Hamilton Anxiety Scale (HAMA) and patient health questionnaire-9 (PHQ-9) were used to assess anxiety and depression levels, and the mini nutritional assessment (MNA) was used to evaluate nutritional status. According to the MMSE scores, the elderly were divided into three groups: no cognitive impairment (MMSE ≥ 27), mild cognitive impairment (MMSE 21-26), and moderate to severe cognitive impairment (MMSE ≤ 20). The general data, lifestyle habits, and scale scores of the three groups were compared. Ordered logistic regression was used to analyze the influencing factors of sleep quality. Results There were statistically significant differences in age, gender, waist circumference, body mass index (BMI), education level, pet ownership, smoking, drinking, mahjong playing behavior, exercise habits, and scale scores among the three groups (P<0.05). Logistic regression analysis showed that age, waist circumference, gender, drinking habits, mahjong playing behavior, and chronic comorbidities are influencing factors for the PSQI grading in the elderly (P<0.05). The MMSE score (OR=1.037, P=0.001), SCD score (OR=1.123, P<0.001), HAMA score (OR=1.183, P<0.001), PHQ-9 score (OR=1.249, P<0.001) are positive influencing factors for PSQI grading, while the MNA score is a negative influencing factor (OR=0.960, P=0.037). Conclusions Advanced age, female gender, low education level, no pet ownership, no mahjong playing behavior, no exercise habits, and poor sleep quality are risk factors for cognitive impairment in the elderly. Advanced age, female gender, no mahjong playing behavior and poor nutritional status are influencing factors for poor sleep quality in the elderly, and severe comorbidities, anxiety, depression, and subjective decline in cognitive function all affect sleep quality.
9.Identification of differential genes in systemic sclerosis and prediction of traditional Chinese medicine
Shuang FENG ; Yangfang TAI ; Shengxiao ZHANG ; Peifeng HE ; Chaoyue ZHENG ; Lingjing CHENG ; Teng KONG ; Xiangfei SUN ; Qi YU ; Xuechun LU
Chinese Journal of Immunology 2025;41(1):107-115,中插1-中插2
Objective:The differentially expressed genes(DEGs)and activated signaling pathways in systemic sclerosis(SSc)were screened by bioinformatics methods,and Chinese medicines for potential treatment of SSc were explored,providing a new theoretical basis for the study of SSc and the screening of potential markers.Methods:The data sets GSE58095,GSE130953,GSE33463 and GSE58613 were selected from GEO database and divided into skin group and peripheral blood group according to the sample source.The DEGs of SSc patients was analyzed by R language,and the Wayne diagram was drawn to take the intersection of the two groups.Metascape was used for GO enrichment analysis and KEGG pathway enrichment analysis,and STRING and Cytoscape were used for protein interaction network analysis to find key pathways and hub genes.The core genes were mapped to the medical on-tology information retrieval platform,and related Chinese medicines for SSc treatment were screened.The effective components of Chi-nese medicines were obtained through TCMSP and HERB databases,and the target letters of active ingredients were obtained through swiss database.The"drug-active ingredient-target"network was constructed by Cytoscape.Results:Total 218 DEGs were identified from the skin group of patients with SSc,and 283 DEGs were screened from peripheral blood of patients with SSc.Among them,there were 7 DEGs co-upregulated in skin and peripheral blood,namely ISG15,LGALS3BP,BST2,C1QB,IFI27,CEACAM1 and FBP1.CAMK2N1 was up-regulated in skin but down-regulated in peripheral blood,ARG1 was down-regulated in skin but up-regulated in pe-ripheral blood.GO and KEGG analysis of SSc DEGs showed that these genes were significantly enriched in inflammatory response,he-moglobin complex,immune receptor activity and extracellular matrix.The results of protein interaction network suggest that more than 10 genes such as COL1A1,CTGF12,IL1B,IFNG and JUN may be potential markers of SSc and core genes of therapeutic targets.The potential Chinese medicines screened for SSc treatment include ginseng,sanguisorba,convolvula,wolfberry,safflower,etc.The main components of these herbs were β-sitosterol,quercetin,kaempferol,stigmasterol,luteolin,sitosterol,Spinasterol,and the target were AKR1B1,AR,CYP1B1,XDH,etc.Conclusion:This study uses bioinformatics to screen out core genes that may be potential markers and therapeutic targets for SSc,which is expected to be a new target for the early diagnosis and mechanism research of SSc.Meanwhile,the mapped Chinese medicine and its effective components can provide ideas for the research and development of Chinese medicine compounds for the treatment of SSc.
10.Lactic acid regulates decidual macrophage differentiation in pre-eclampsia through SRC/LDHA signaling pathway
Xuechun LI ; Qian GAN ; Shaoping HUANG ; Yang ZHANG
Chinese Journal of Immunology 2025;41(3):605-614
Objective:To explore the specific mechanism of lactic acid(LA)on regulating decidual macrophage differentia-tion in pre-eclampsia(PE)through non-receptor tyrosine kinase sarcoma virus protein/lactate dehydrogenase A(SRC/LDHA)signaling pathway.Methods:Decidual tissues were collected from 16 women with preeclampsia(PE)and 16 women with normal pregnancies during the same period.Immunofluorescence was used to assess macrophage subtypes and LA secretion in decidual tissues.Biochemi-cal assays and Western blot were performed to measure levels of LA,LDHA and MCT-4 in tissues.Biochemical assays were conducted to measure LA level in supernatants of normal trophoblast cells under different cell densities and oxygen conditions.Flow cytometry was used to assess polarization of macrophages in normal decidual tissues under different conditions of LA,oxygen and culture media.qRT-PCR,Western blot,ROS,and NAD+/NADH measurements were performed to evaluate mRNA and protein levels related to gly-colysis and mitochondrial oxidative phosphorylation,as well as proteins associated with SRC/LDHA signaling pathway,ROS level,and NAD+/NADH.Thirty pregnant rats were divided into normal group,model group,low-,medium-,high-dose AZD3965 groups,with 6 rats in each group.PE model was established,and the systolic blood pressure and urinary protein levels of pregnant rats were measured at various time points.On gestational day 20,the placental and fetal development in each group were compared.Immunofluo-rescence was used to assess trophoblast cell invasion and uterine spiral artery remodeling in decidual tissues.Immunohistochemistry and flow cytometry were performed to evaluate fetal vascular development and macrophage polarization.Results:Compared with nor-mal pregnant women,patients with PE exhibited an increased proportion of M1 macrophages,CK7+LDHA+,CK7+MCT-4+cells,LA,LDHA and MCT-4(P<0.05),while proportion of M2 macrophages was decreased(P<0.05).Compared with normoxic conditions,LA level in supernatant of trophoblast cells was significantly increased under hypoxic conditions(P<0.05).Under normoxic condition,compared with control groups,conditioned culture group showed a decreased M1/M2 macrophage(P<0.05).LA group exhibited in-creased expressions of NDUFA1,NDUFA2,UQCRC1,UQCRC2,COX4I1,COX4I2,ATP5F1A,ATP5F1B mRNA,and SDHB,COX4I1,LDHB,p-SRC(Y416),p-LDHA(Y10),VEGF and ARG-1 protein(P<0.05).NAD+/NADH was decreased(P<0.05).PX478 group showed increased expression of p-SRC(P<0.05).LA+PX478 group exhibited increased expressions of p-SRC(Y416)and p-LDHA(Y10)(P<0.05),while VEGF expression was decreased(P<0.05).Under hypoxic conditions,compared with control groups,the conditioned culture group,LA group and LA+PX478 group exhibited an increased M1/M2 macrophage(P<0.05).LA group showed upregulated expressions of LDHA mRNA,HIF-1α,LDHA,p-SRC(Y416),p-LDHA(Y10)and iNOS(P<0.05),while mRNA expression of LDHB and protein expressions of NDUFA1 and UQCRC2 were downregulated(P<0.05).ROS level and NAD+/NADH were decreased(P<0.05).PX478 group demonstrated reduced HIF-1α expression(P<0.05)and increased p-SRC(Y416)expression(P<0.05).LA+PX478 group showed decreased HIF-1α expression(P<0.05)and increased p-LDHA(Y10)ex-pression(P<0.05).Compared with LA group,LA+PX478 group exhibited elevated ROS level(P<0.05)and a reduced NAD+/NADH(P<0.05).Compared with normal group,pregnant rats in model group exhibited increased blood pressure,urine protein levels and an elevated M1/M2 in decidual tissue(P<0.05).The fetal mice exhibited abnormal development,with inadequate trophoblast cell infiltra-tion,impaired uterine spiral artery remodeling,a decreased number of fetal blood vessels in placental labyrinthine layer,and nar-rowed lumens.Compared with model group,the low,medium,and high-dose AZD3965 groups showed decreased blood pressure,urine protein levels and M1/M2(P<0.05).Additionally,there was an improvement in fetal mouse development,trophoblast cell infil-tration and uterine spiral artery remodeling.The number of fetal blood vessels in placental labyrinthine layer increased,and the lu-mens expanded.Conclusion:LA can regulate macrophage polarization in decidua of PE through SRC/LDHA pathway,and blocking LA uptake can alleviate the pathological manifestations in pregnant rats with PE.

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