1.Mediation and latent variable analysis of new curriculum standard based physical education core literacy and subjective exercise experience among middle school students
YUAN Yuqing, HU Wenying, HU Chang, ZHANG Wen, SONG Chao
Chinese Journal of School Health 2025;46(7):941-945
		                        		
		                        			Objective:
		                        			To examine the relationship among physical education core literacy, exercise self efficacy, physical self esteem and subjective exercise experience among middle school students, and to analyze the latent classes of exercise self efficacy, so as to provide evidence for enhancing adolescents  subjective exercise experience.
		                        		
		                        			Methods:
		                        			Using stratified cluster random sampling, 2 569 students from 12 provinces, autonomous regions or municipality directly under the central govement (Jiangxi, Guangdong, Hunan, Guizhou, Henan, Guangxi, Yunnan, Chongqing, Sichuan, Shandong, Hubei, Hebei) were surveyed from September to November in 2024 with Core Competency Scale of Physical Education, Subjective Exercise Experiences Scale, Exercise Self Efficacy Scale, and Physical Self esteem Scale. Pearson correlation analysis was conducted to explore the relationships among physical education core literacy, exercise self efficacy, physical self esteem, and subjective exercise experience. Mediation models with Bootstrap testing were employed to examine the mediating roles of exercise self efficacy and physical self esteem in the relationship between physical education core literacy and subjective exercise experience. Latent profile analysis (LPA) of exercise self efficacy was performed using Mplus 8.3.
		                        		
		                        			Results:
		                        			Pearson correlation analysis revealed positive associations between physical education core literacy and exercise self efficacy ( r =0.21), physical self esteem ( r =0.38), and subjective exercise experience ( r =0.40); exercise self efficacy was positively correlated with physical self esteem ( r =0.25) and subjective exercise experience ( r =0.45); and physical self esteem was positively correlated with subjective exercise experience ( r =0.34) (all  P <0.01). Mediation analysis indicated that physical education core literacy positively predicted subjective exercise experience ( β =0.41,  P <0.05), with exercise self efficacy and physical self esteem serving as partial mediators (effect size=0.14,  P <0.01), accounting for 34% of the total effect. LPA identified three latent classes of exercise self efficacy:low (14.71%,  n =378), moderate (65.51%,  n =1 683), and high (19.78%,  n =508) exercise self efficacy groups.
		                        		
		                        			Conclusion
		                        			Adolescents  exercise self efficacy demonstrates heterogeneity, and both exercise self efficacy and physical self esteem mediate the relationship between physical education core literacy and subjective exercise experience.
		                        		
		                        		
		                        		
		                        	
2.Effects of Xiaozhong Zhitong Mixture (消肿止痛合剂) on Angiogenesis and the Dll4/Notch1 Signaling Pathway in Wound Tissue of Diabetic Foot Ulcer Model Rats
Xiao HAN ; Tao LIU ; Yuan SONG ; Jie CHEN ; Jiaxuan SHEN ; Jing QIAO ; Hengjie WANG ; Lewen WU ; Yazhou ZHAO
Journal of Traditional Chinese Medicine 2025;66(16):1695-1703
		                        		
		                        			
		                        			ObjectiveTo investigate the potential machanism of Xiaozhong Zhitong Mixture (消肿止痛合剂, XZM) in the treatment of diabetes foot ulcer (DFU). MethodsFifty SD rats were randomly divided into blank group, model group, XZM group, inhibitor group, XZM plus inhibitor group (combination group), with 10 rats in each group. Except for the blank group, rats were fed with high-sugar, high-fat, high-cholesterol diet, intraperitoneally injected with streptozotocin, and subjected to skin defect to establish DFU model. After successful modeling, the XZM group and the combination group were given 1 ml/(100 g·d)of XZM by gavage, while the blank group, model group, and inhibitor group were all given an equal volume of 0.9% sodium chloride injection by gavage. Thirty minutes later, the inhibitor group and the combination group were intraperitoneally injected with 5 mg/(kg·d) of Notch1 inhibitor DAPT. All groups were treated once a day. After 14 days of administration, the skin tissue from the dorsal foot of the blank group rats and wound tissue from the other groups were collected. The pathological changes of granulation tissue in the wound were detected using hematoxylin eosin (HE) staining. The microvascular density (MVD) in wounds was detected through immunohistochemical staining. Real time fluorescence quantitative polymerase chain reaction (RT-PCR) and western blotting were used to detect the mRNA and protein levels of Notch1 homolog (Notch1), Delta-like ligand 4 (Dll4), Delta-like ligand 4 (VEGF), and angiopoietin 2 (Ang-2), respectively. ResultsHistological results showed that the epidermal structure in the dorsal foot skin tissue of the rats in the blank group was intact. In the wound tissue of the model group, the epidermis exhibited excessive keratinization, vacuolar cytoplasm, and a large number of inflammatory cells infiltrating the tissue, while in the XZM group, a large amount of scab formation was observed in the epidermis, with no significant inflammatory cell infiltration and a noticeable increase in fibroblasts. In the combination group and the inhibitor group, partial epidermal scab formation was observed in the wound tissue with a small amount of inflammatory cell infiltration. Compared to those in the blank group, the MVD in the wound tissue increased in the model group, as well as the mRNA expression and protein levels of Notch1 and Dll4, while VEGFA and Ang-2 mRNA expression and protein levels significantly decreased (P<0.05 or P<0.01). Compared to those in the model group, the MVD in the wound tissue of all medication groups significantly increased, and the mRNA and protein levels of Notch1 and Dll4 decreased, while VEGFA and Ang-2 mRNA expression and protein levels increased (P<0.05 or P<0.01). Compared to the XZM group, the inhibitor group and the combination group showed decreased MVD in wound tissue, increased Notch1 and Dll4 mRNA and protein levels, and decreased expression of VEGFA and Ang-2 mRNA and proteins (P<0.05 or P<0.01). ConclusionXZM can effectively promote wound healing in DFU rats, and its mechanism of action may be related to the inhibition of Dll4/Notch1 signaling pathway in the wound tissue, therey promoting angiogenesis. 
		                        		
		                        		
		                        		
		                        	
3.Longitudinal cross lagged analysis of body mass index and weight stigma with depressive symptom in adolescents
DONG Ziqi, SONG Xinli, YUAN Wen, LI Jing, YANG Tian, ZHANG Xiuhong, SONG Yi, DONG Yanhui
Chinese Journal of School Health 2025;46(9):1242-1245
		                        		
		                        			Objective:
		                        			To explore the bidirectional associations among body mass index  Z scores (BMI  Z scores) and weight stigma with depressive symptoms in adolescents, thereby providing evidence for targeted intervention strategies.
		                        		
		                        			Methods:
		                        			A stratified cluster random sampling method was employed to select 18 301 adolescents aged 12-18 years from all 12 prefectures (103 counties) in the Inner Mongolia Autonomous Region, and two waves of longitudinal surveys were conducted in September 2023 (T1) and September 2024 (T2) among the adolescents. Weight stigma was assessed by using a self developed questionnaire, depressive symptom was measured with the Center for Epidemiologic Studies Depression Scale (CES-D), and BMI  Z scores were calculated according to the World Health Organization standards. Pearson correlation analysis was used to examine associations among variables, and cross lagged panel models were constructed to investigate the dynamic bidirectional relationships among the three variables.
		                        		
		                        			Results:
		                        			Adolescents  BMI  Z scores and weight stigma with depressive symptoms all exhibited autoregressive stability across the two time points (autoregressive paths, all  P <0.01). Cross lagged model comparisons indicated that the bidirectional path model achieved the best fit ( χ 2=12.65,  RMSEA =0.017,  CFI =1.000; △ χ 2=193.39,  P <0.01), supporting dynamic bidirectional associations among the three variables. After adjusting for gender, age, subjective social status and only child status, T1 BMI  Z scores among adolescents positively predicted T2 weight stigma ( β =0.061), and T1 weight stigma positively predicted T2 depressive symptoms ( β =0.608); in the reverse direction, T1 depressive symptoms predicted T2 weight stigma ( β =0.003), and T1 weight stigma predicted T2 BMI  Z scores ( β =0.081) (all  P <0.01).
		                        		
		                        			Conclusions
		                        			There is a bidirectional cross lagged relationship among adolescents  BMI  Z scores and weight stigma with depressive symptoms, suggesting that weight stigma may serve as a key psychological variable linking obesity and depressive symptoms. Greater attention should be paid to the potential threat of weight stigma to adolescents  mental health, with intervention strategies expanded from a solely physiological focus to encompass psychosocial dimensions.
		                        		
		                        		
		                        		
		                        	
4.Association of physical activity and sedentary behavior with cardiorespiratory fitness among middle school students in Lhasa
Chinese Journal of School Health 2025;46(9):1318-1322
		                        		
		                        			Objective:
		                        			To explore the relationship of physical activity (PA) and sedentary behavior (SB) with cardiorespiratory fitness (CRF) among middle schoold students in Tibet, so as to provide empirical references for improving the cardiorespiratory fitness and health levels of adolescents in Tibet.
		                        		
		                        			Methods:
		                        			From August to December 2020, 1 225 junior and senior high school students were selected from 2 middle schools in Lhasa, Tibet Autonomous Region, using the stratified cluster random sampling method. Triaxial accelerometers were used to evaluate PA and SB behaviors, and the 20 meter shuttle run was employed to assess CRF among the middle school students. Isochronous substitution modeling was used to analyze the associations of SB, low intensity physical activity (LPA), and moderate vigorous physical activity (MVPA) with CRF, and the saturation threshold effect in the dose response relationship between MVPA and CRF was analyzed through restricted cubic spline and two stage linear regression.
		                        		
		                        			Results:
		                        			After adjusting for covariates such as gender, body mass index and sleep quality score, isotemporal substitution analysis showed that among junior high school students aged 13-15, replacing 30 minutes of SB ( B =1.73) or LPA ( B =2.38) with MVPA were positively associated with CRF (both  P <0.05). Among senior high school students aged 16-18, replacing SB ( B =0.99) or LPA ( B =1.38) with MVPA were also positively associated with CRF (both  P <0.05). Restricted cubic spline and two piecewise linear regression analyses indicated that only middle school girls aged 13-18 exhibited a saturation threshold effect between MVPA and CRF (logarithmic likelihood ratio test=0.03), with the optimal CRF improvement observed at 60 minutes of MVPA per day ( B=0.13,  P < 0.01).
		                        		
		                        			Conclusions
		                        			Reducing SB and LPA while increasing MVPA can improve CRF in Tibetan middle school students. To maximize CRF improvement, middle school girls should engage in at least 60 minutes of MVPA daily.
		                        		
		                        		
		                        		
		                        	
5.Total Flavonoids from Cuscutae Semen Inhibit Depression in CUMS Mice via UCP2/TXNIP/NLRP3 Signaling Pathway
Andong SONG ; Guohua LI ; Bo YUAN ; Menghui JIA ; Zhantao LI ; Xiaoli WANG ; Long WANG ; Huiling FU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(21):109-119
		                        		
		                        			
		                        			ObjectiveTo investigate the antidepressant effects and mechanisms of total flavonoids from Cuscutae Semen (TFCC) in the mouse model of chronic unpredictable mild stress (CUMS). MethodsFifty male 4-week-old ICR mice were randomized into five groups (n=10 per group): blank control, model, Cuscutae Semen decoction (10.2 g·kg-1·d-1), paroxetine (2.6 mg·kg-1·d-1), and TFCC (173.2 mg·kg-1·d-1). The other groups except the blank control group underwent chronic unpredictable mild stress (CUMS) for 4 weeks. Behavioral assessments were conducted post-modeling. Then, the model group received distilled water (10 mL·kg-1·d-1), while treatment groups were administrated with respective agents via oral gavage (10 mL·kg-1) for 4 weeks. Depression-like behaviors were evaluated by the sucrose preference test (SPT), forced swimming test (FST), and tail suspension test (TST). Hippocampal neuronal morphology was observed via hematoxylin-eosin staining, and apoptosis in the brain tissue was assessed via terminal- deoxynucleotidyl transferase-mediated dUTP-biotin nick end labeling (TUNEL). Enzyme-linked immunosorbent assay (ELISA) was employed to measure the hippocampal levels of inflammatory cytokines [interleukin (IL)-1β, IL-6, and TNF-α)] and neurotransmitters [5-hydroxytryptamine (5-HT), dopamine (DA), and brain-derived neurotrophic factor (BDNF)], while the reactive oxygen species (ROS) levels were quantified via the DCFH-DA probe. Real-time PCR was performed to measure the mRNA levels of NOD-like receptor protein 3 (NLRP3), apoptosis-associated Speck-like protein containing a CARD (ASC), cysteinyl aspartate-specific proteinase-1 (Caspase-1), IL-1β, and inducible nitric oxide synthase (iNOS). Western blot was employed to evaluate the protein levels of NLRP3, ASC, Caspase-1, uncoupling protein 2 (UCP2), and thioredoxin-interacting protein (TXNIP). ResultsCompared with the blank control group, the model group exhibited weight loss (P<0.01), reduced sucrose preference (P<0.01), prolonged immobility time in FST and TST (P<0.01), neuron disarrangement with nuclear pyknosis in hippocampal CA3 region, increased apoptosis in the brain tissue, elevated levels of IL-1β, IL-6, and TNF-α (P<0.01), declined levels of 5-HT, DA, and BDNF (P<0.01), increased ROS accumulation (P<0.01), upregulated mRNA levels of NLRP3, ASC, Caspase-1, IL-1β, and iNOS (P<0.01), down-regulated protein level of UCP2 (P<0.01), and up-regulated protein levels of NLRP3, ASC, Caspase-1, and TXNIP (P<0.01). Compared with the model group, the interventions restored sucrose preference (P<0.01), shortened immobility time (P<0.01), repaired hippocampal neuronal structure, reduced apoptosis, lowered the levels of inflammatory cytokines (P<0.01), restored the levels of neurotransmitters (P<0.01), alleviated ROS accumulation (P<0.01), downregulated the mRNA levels of NLRP3, ASC, Caspase-1, IL-1β, and iNOS (P<0.01), upregulated the protein level of UCP2 (P<0.01), and reduced the protein levels of NLRP3, ASC, Caspase-1, and TXNIP (P<0.01). Moreover, TFCC outperformed Cuscutae Semen decoction in ameliorating depressive behaviors. TFCC excelled in neuronal repair, neurotransmitter regulation, anti-inflammatory effects, and modulation of the UCP2/TXNIP/NLRP3 pathway (P<0.05). ConclusionTFCC modulates the hippocampal UCP2/TXNIP/NLRP3 pathway to inhibit inflammasome activation, reduce oxidative stress, restore neurotransmitters, thus suppressing neuronal apoptosis and promoting the rearrangement and morphology recovery of hippocampal cells. It outperforms Cuscutae Semen decoction in the antidepressant efficacy. 
		                        		
		                        		
		                        		
		                        	
6.Total Flavonoids from Cuscutae Semen Inhibit Depression in CUMS Mice via UCP2/TXNIP/NLRP3 Signaling Pathway
Andong SONG ; Guohua LI ; Bo YUAN ; Menghui JIA ; Zhantao LI ; Xiaoli WANG ; Long WANG ; Huiling FU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(21):109-119
		                        		
		                        			
		                        			ObjectiveTo investigate the antidepressant effects and mechanisms of total flavonoids from Cuscutae Semen (TFCC) in the mouse model of chronic unpredictable mild stress (CUMS). MethodsFifty male 4-week-old ICR mice were randomized into five groups (n=10 per group): blank control, model, Cuscutae Semen decoction (10.2 g·kg-1·d-1), paroxetine (2.6 mg·kg-1·d-1), and TFCC (173.2 mg·kg-1·d-1). The other groups except the blank control group underwent chronic unpredictable mild stress (CUMS) for 4 weeks. Behavioral assessments were conducted post-modeling. Then, the model group received distilled water (10 mL·kg-1·d-1), while treatment groups were administrated with respective agents via oral gavage (10 mL·kg-1) for 4 weeks. Depression-like behaviors were evaluated by the sucrose preference test (SPT), forced swimming test (FST), and tail suspension test (TST). Hippocampal neuronal morphology was observed via hematoxylin-eosin staining, and apoptosis in the brain tissue was assessed via terminal- deoxynucleotidyl transferase-mediated dUTP-biotin nick end labeling (TUNEL). Enzyme-linked immunosorbent assay (ELISA) was employed to measure the hippocampal levels of inflammatory cytokines [interleukin (IL)-1β, IL-6, and TNF-α)] and neurotransmitters [5-hydroxytryptamine (5-HT), dopamine (DA), and brain-derived neurotrophic factor (BDNF)], while the reactive oxygen species (ROS) levels were quantified via the DCFH-DA probe. Real-time PCR was performed to measure the mRNA levels of NOD-like receptor protein 3 (NLRP3), apoptosis-associated Speck-like protein containing a CARD (ASC), cysteinyl aspartate-specific proteinase-1 (Caspase-1), IL-1β, and inducible nitric oxide synthase (iNOS). Western blot was employed to evaluate the protein levels of NLRP3, ASC, Caspase-1, uncoupling protein 2 (UCP2), and thioredoxin-interacting protein (TXNIP). ResultsCompared with the blank control group, the model group exhibited weight loss (P<0.01), reduced sucrose preference (P<0.01), prolonged immobility time in FST and TST (P<0.01), neuron disarrangement with nuclear pyknosis in hippocampal CA3 region, increased apoptosis in the brain tissue, elevated levels of IL-1β, IL-6, and TNF-α (P<0.01), declined levels of 5-HT, DA, and BDNF (P<0.01), increased ROS accumulation (P<0.01), upregulated mRNA levels of NLRP3, ASC, Caspase-1, IL-1β, and iNOS (P<0.01), down-regulated protein level of UCP2 (P<0.01), and up-regulated protein levels of NLRP3, ASC, Caspase-1, and TXNIP (P<0.01). Compared with the model group, the interventions restored sucrose preference (P<0.01), shortened immobility time (P<0.01), repaired hippocampal neuronal structure, reduced apoptosis, lowered the levels of inflammatory cytokines (P<0.01), restored the levels of neurotransmitters (P<0.01), alleviated ROS accumulation (P<0.01), downregulated the mRNA levels of NLRP3, ASC, Caspase-1, IL-1β, and iNOS (P<0.01), upregulated the protein level of UCP2 (P<0.01), and reduced the protein levels of NLRP3, ASC, Caspase-1, and TXNIP (P<0.01). Moreover, TFCC outperformed Cuscutae Semen decoction in ameliorating depressive behaviors. TFCC excelled in neuronal repair, neurotransmitter regulation, anti-inflammatory effects, and modulation of the UCP2/TXNIP/NLRP3 pathway (P<0.05). ConclusionTFCC modulates the hippocampal UCP2/TXNIP/NLRP3 pathway to inhibit inflammasome activation, reduce oxidative stress, restore neurotransmitters, thus suppressing neuronal apoptosis and promoting the rearrangement and morphology recovery of hippocampal cells. It outperforms Cuscutae Semen decoction in the antidepressant efficacy. 
		                        		
		                        		
		                        		
		                        	
7.Evaluation of Anti-osteoporosis Activity and Hepatotoxicity of Xianling Gubao Based on Zebrafish Model
Qiuman LI ; Yue QIAN ; Zixuan ZHU ; Yuan SONG ; Qian DENG ; Shengyun DAI ; Chongjun ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(4):87-94
		                        		
		                        			
		                        			ObjectiveTo investigate the association and translational mechanism between the hepatotoxicity of Xianling Gubao (XLGB) and its treatment of osteoporosis based on a zebrafish model. MethodsZebrafish were randomly selected four days after fertilization (4 dpf) and exposed to different concentrations of XLGB (0.7,0.35 mg·L-1) for 96 h. At the endpoint of the exposure, the mortality rates of zebrafish in the treatment groups of different concentrations were counted, and the "dose-toxicity" curves were plotted. The 10% sublethal concentration (LC10) was calculated. The liver area, acridine orange staining, and pathological tissue sections of transgenic zebrafish [CZ16 (gz15Tg.Tg (fabp 10a: ds Red; ela31: EGFP)] were used as indicators to confirm the hepatic damage caused by the sublethal concentration of XLGB. By using the prednisolone (PNSL)-induced osteoporosis model of zebrafish, the anti-osteoporosis activity of XLGB was evaluated by using the area of skull stained by alizarin red and the cumulative optical density value as indicators. Then, the toxicity difference of XLGB on the liver of zebrafish in healthy and osteoporotic states was compared, and the mechanism of the translational action of the toxicity of XLGB was predicted based on network pharmacology and real-time polymerase chain reaction(Real-time PCR). ResultsThe LC10 of XLGB on zebrafish (8 dpf) was 0.7 mg·L-1. Compared with the blank group, the sublethal concentration (LC10=0.7 mg·L-1, 1/2 LC10=0.35 mg·L-1) of XLGB induced an increase in the number of apoptosis of hepatocytes in a dose-dependent manner, and the tissue arrangement of the liver was disordered and loose. The vacuoles were obvious, and the fluorescence area of the liver was significantly reduced (P<0.01). Compared with the blank group, the mineralized area and cumulative optical density value of zebrafish skull in the PNSL model group were significantly reduced (P<0.01), and those in the 0.7,0.35 mg·L-1 XLGB treatment group were significantly increased compared with the model group (P<0.01). Most importantly, 0.7 mg·L-1 XLGB had no significant effect on the liver of zebrafish in the osteoporosis disease model compared with the blank group. The results of network pharmacology and real-time PCR experiments showed that the toxic transformation of XLGB might be related to the differences in the expression levels of key targets, such as tumor protein 53 (TP53), cysteine aspartic acid specific protease-3(Caspase-3), interleukin(IL)-6, and alkaline phosphatase(ALP) in different organismal states. ConclusionUnder certain conditions, XLGB has hepatotoxicity in normal zebrafish, but under osteoporotic conditions, XLGB not only exerts significant anti-osteoporosis activity but also alleviates hepatotoxicity significantly, which provides a reference for the safe clinical use of XLGB and real evidence for the theories of traditional Chinese medicine of attacking poison with poison and of treating disease with corresponding drugs without damage to the body. 
		                        		
		                        		
		                        		
		                        	
8.Role of SWI/SNF Chromatin Remodeling Complex in Tumor Drug Resistance
Gui-Zhen ZHU ; Qiao YE ; Yuan LUO ; Jie PENG ; Lu WANG ; Zhao-Ting YANG ; Feng-Sen DUAN ; Bing-Qian GUO ; Zhu-Song MEI ; Guang-Yun WANG
Progress in Biochemistry and Biophysics 2025;52(1):20-31
		                        		
		                        			
		                        			Tumor drug resistance is an important problem in the failure of chemotherapy and targeted drug therapy, which is a complex process involving chromatin remodeling. SWI/SNF is one of the most studied ATP-dependent chromatin remodeling complexes in tumorigenesis, which plays an important role in the coordination of chromatin structural stability, gene expression, and post-translation modification. However, its mechanism in tumor drug resistance has not been systematically combed. SWI/SNF can be divided into 3 types according to its subunit composition: BAF, PBAF, and ncBAF. These 3 subtypes all contain two mutually exclusive ATPase catalytic subunits (SMARCA2 or SMARCA4), core subunits (SMARCC1 and SMARCD1), and regulatory subunits (ARID1A, PBRM1, and ACTB, etc.), which can control gene expression by regulating chromatin structure. The change of SWI/SNF complex subunits is one of the important factors of tumor drug resistance and progress. SMARCA4 and ARID1A are the most widely studied subunits in tumor drug resistance. Low expression of SMARCA4 can lead to the deletion of the transcription inhibitor of the BCL2L1 gene in mantle cell lymphoma, which will result in transcription up-regulation and significant resistance to the combination therapy of ibrutinib and venetoclax. Low expression of SMARCA4 and high expression of SMARCA2 can activate the FGFR1-pERK1/2 signaling pathway in ovarian high-grade serous carcinoma cells, which induces the overexpression of anti-apoptosis gene BCL2 and results in carboplatin resistance. SMARCA4 deletion can up-regulate epithelial-mesenchymal transition (EMT) by activating YAP1 gene expression in triple-negative breast cancer. It can also reduce the expression of Ca2+ channel IP3R3 in ovarian and lung cancer, resulting in the transfer of Ca2+ needed to induce apoptosis from endoplasmic reticulum to mitochondria damage. Thus, these two tumors are resistant to cisplatin. It has been found that verteporfin can overcome the drug resistance induced by SMARCA4 deletion. However, this inhibitor has not been applied in clinical practice. Therefore, it is a promising research direction to develop SWI/SNF ATPase targeted drugs with high oral bioavailability to treat patients with tumor resistance induced by low expression or deletion of SMARCA4. ARID1A deletion can activate the expression of ANXA1 protein in HER2+ breast cancer cells or down-regulate the expression of progesterone receptor B protein in endometrial cancer cells. The drug resistance of these two tumor cells to trastuzumab or progesterone is induced by activating AKT pathway. ARID1A deletion in ovarian cancer can increase the expression of MRP2 protein and make it resistant to carboplatin and paclitaxel. ARID1A deletion also can up-regulate the phosphorylation levels of EGFR, ErbB2, and RAF1 oncogene proteins.The ErbB and VEGF pathway are activated and EMT is increased. As a result, lung adenocarcinoma is resistant to epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs). Although great progress has been made in the research on the mechanism of SWI/SNF complex inducing tumor drug resistance, most of the research is still at the protein level. It is necessary to comprehensively and deeply explore the detailed mechanism of drug resistance from gene, transcription, protein, and metabolite levels by using multi-omics techniques, which can provide sufficient theoretical basis for the diagnosis and treatment of poor tumor prognosis caused by mutation or abnormal expression of SWI/SNF subunits in clinical practice. 
		                        		
		                        		
		                        		
		                        	
9.Pathogenesis and treatment progress of flap ischemia-reperfusion injury
Bo HE ; Wen CHEN ; Suilu MA ; Zhijun HE ; Yuan SONG ; Jinpeng LI ; Tao LIU ; Xiaotao WEI ; Weiwei WANG ; Jing XIE
Chinese Journal of Tissue Engineering Research 2025;29(6):1230-1238
		                        		
		                        			
		                        			BACKGROUND:Flap transplantation technique is a commonly used surgical procedure for the treatment of severe tissue defects,but postoperative flap necrosis is easily triggered by ischemia-reperfusion injury.Therefore,it is still an important research topic to improve the survival rate of transplanted flaps. OBJECTIVE:To review the pathogenesis and latest treatment progress of flap ischemia-reperfusion injury. METHODS:CNKI,WanFang Database and PubMed database were searched for relevant literature published from 2014 to 2024.The search terms used were"flap,ischemia-reperfusion injury,inflammatory response,oxidative stress,Ca2+overload,apoptosis,mesenchymal stem cells,platelet-rich plasma,signaling pathways,shock wave,pretreatment"in Chinese and English.After elimination of irrelevant literature,poor quality and obsolete literature,77 documents were finally included for review. RESULTS AND CONCLUSION:Flap ischemia/reperfusion injury may be related to pathological factors such as inflammatory response,oxidative stress response,Ca2+overload,and apoptosis,which can cause apoptosis of vascular endothelial cells,vascular damage and microcirculation disorders in the flap,and eventually lead to flap necrosis.Studies have found that mesenchymal stem cell transplantation,platelet-rich plasma,signaling pathway modulators,shock waves,and pretreatment can alleviate flap ischemia/reperfusion injuries from different aspects and to varying degrees,and reduce the necrosis rate and necrosis area of the grafted flap.Although there are many therapeutic methods for skin flap ischemia/reperfusion injury,a unified and effective therapeutic method has not yet been developed in the clinic,and the advantages and disadvantages of various therapeutic methods have not yet been compared.Most of the studies remain in the stage of animal experiments,rarely involving clinical observations.Therefore,a lot of research is required in the future to gradually move from animal experiments to the clinic in order to better serve the clinic.
		                        		
		                        		
		                        		
		                        	
10.Two visual arthroplasty techniques for L5-S1 disc herniation:a half-year follow-up evaluation of clinical outcomes
Qi LU ; Maji SUN ; Xuezhi WANG ; Ting SONG ; Yiming MA ; Feng YUAN ; Hongliang CHEN
Chinese Journal of Tissue Engineering Research 2025;29(9):1841-1847
		                        		
		                        			
		                        			BACKGROUND:Currently,spinal endoscopic technology has become the mainstream technology in minimally invasive spinal surgery.The specifications of the instruments for different operating systems are different,and the choice of specific surgical protocols needs to be combined with the actual situation of the patient and the choice of the clinical surgeon. OBJECTIVE:To compare the early efficacy of percutaneous endoscopic interlaminar discectomy for L5-S1 disc herniation under the iLESSYS Delta System and Endo-Surgi Plus System. METHODS:Totally 80 patients with L5-S1 disc herniation were treated with percutaneous endoscopic interlaminar discectomy.Patients were divided into two groups based on the endoscopic system used.Among them,37 cases received the iLESSYS Delta System(Delta group)and 43 cases received the Endo-Surgi Plus System(Plus group).Patient demographic characteristics,perioperative indicators,and complications were analyzed between the two groups.Clinical outcomes were quantified using back and leg visual analog scale scores,Oswestry Disability Index,and Japanese Orthopaedic Association scores at 1 day,1,3,and 6 months after surgery.Patient satisfaction was assessed according to modified MacNab criteria at final follow-up. RESULTS AND CONCLUSION:(1)The operative time and number of arthroplasties in the Plus group were less than those in the Delta group,and the differences were statistically significant(P<0.05).(2)Compared with the preoperative period,the visual analog scale scores,Oswestry Disability Index,and Japanese Orthopaedic Association scores of patients in both groups improved at all follow-up time points,and the difference was statistically significant(P<0.001).(3)There was no statistically significant difference in the comparison of pain visual analog scale scores,Oswestry Disability Index,and Japanese Orthopaedic Association scores of patients in the two groups(P>0.05).(4)At 6-month follow-up after surgery,the MacNab standard excellent and good rates in the Delta group and Plus group were 81%and 79%,respectively,with no significant difference(P=0.823).(5)The incidence of complications was 3%in the Delta group and 2%in the Plus group,but there was no significant difference between the two groups(P=0.914).(6)It is concluded that both iLESSYS Delta and Endo-Surgi Plus surgical systems achieved satisfactory early clinical results in the treatment of lumbar disc herniation,with Endo-Surgi Plus surgical moulding being more efficient and safer.
		                        		
		                        		
		                        		
		                        	
            

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