1.Analysis of the current situation of poor vision and wearing of glasses among junior high school students in Xi'an City
Hui GAO ; Jiaqi WANG ; Zhirong LIU ; Jiateng WANG ; Lu YE
International Eye Science 2026;26(1):174-178
AIM:To investigate the prevalence of visual impairment and its correction status among junior high school students in Xi'an, so as to provide evidence for the development of targeted myopia prevention and control strategies.METHODS: A stratified cluster sampling design was adopted. From March to May 2025, students in grades 7-9 were recruited from three schools in Xi'an, Shaanxi Province, China: Dongfang Middle School, the Middle School Attached to Xi'an University of Technology, and the Xingqing Campus of the High School Affiliated to Xi'an Jiaotong University. In total, 3 974 students were invited, including 1 726 in grade 7, 1 206 in grade 8, and 1 042 in grade 9. The visual acuity was measured monocularly using a 5 m standard logarithmic visual acuity chart, with the fellow eye occluded; the line corresponding to the smallest optotype that could be correctly identified was recorded as the visual acuity value. Non-cycloplegic autorefraction was performed with a desktop autorefractor to obtain spherical equivalent(SE)values for refractive error screening.RESULTS: This study initially included 3 974 students, of whom 32 did not participate in the vision test, resulting in 3 942 students being included in the final analysis. Among them, 3 067(77.80%)were identified with poor vision. The prevalence of myopia was 81.47%(1 746)in males and 87.55%(1 575)in females(P<0.01). A stratified analysis by grade showed myopia rates of 81.72%(1 386)in junior grade one, 84.47%(1 017)in junior grade two, and 88.10%(918)in junior grade three, demonstrating a significant upward trend with increasing grade level(χ2=19.8484, P<0.01). Among the 3 321 myopic students, 2 287 adopted corrective measures. The rates of full correction, under-correction, and non-correction among all myopic students were 48.15%(1 599), 20.71%(688), and 31.14%(1 034), respectively. The rate of non-correction was significantly higher in male students than in females(32.70% vs 29.40%, χ2=4.2222, P<0.05).CONCLUSION: The findings indicate a high prevalence of visual impairment among junior high school students in Xi'an, coupled with suboptimal spectacle-wearing and full-correction rates. There is an urgent need for collaborative efforts across society, schools, and families to implement effective interventions to slow the onset and progression of myopia in this population.
2.Advances in Diabetic Peripheral Neuropathy Treatment by Traditional Chinese Medicine Based on Cellular Senescence: A Review
Qixian MA ; Shiyu HAN ; Hui HUANG ; Jing TIAN ; Xu HAN ; Qingguang CHEN ; Hao LU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(5):322-330
Diabetic Peripheral Neuropathy (DPN) is one of the most common and harmful complications of type 2 diabetes. DPN's pathogenesis include high blood sugar-induced oxidative stress, inflammation, and mitochondrial dysfunction. These factors are combined to damage nerve fibers, leading to sensory issues, pain, and numbness. Through a coordinated effect, these factors trigger nerve fiber damage and lead to sensory abnormalities, pain and numbness in limbs, and other symptoms, seriously restricting patients' activities of daily living and mobility. Recent research highlights that cellular senescence plays a critical role in DPN. Cellular senescence is manifested by the loss of cell proliferation ability, and further aggravates nerve damage via oxidative stress, mitochondrial dysfunction, autophagy impairment, inflammatory reaction, and other mechanisms, accelerating DPN occurrence and progression. In terms of medical treatment, current methods focus on blood sugar control, pain relief medicine, and microcirculation improvement, while no therapy has been developed based on cellular senescence. In contrast, traditional Chinese medicine (TCM) shows a unique advantage in DPN prevention and treatment via cellular senescence modulation. TCM emphasizes a holistic approach, as well as syndrome differentiation and treatment, effective in anti-aging and nerve damage repair. Recent studies show that TCM active ingredients, including puerarin, ginsenosides, and berberine, can reduce inflammation, oxidative stress, and apoptosis via signaling pathway regulation, thereby slowing cellular senescence to alleviate nerve damage. Furthermore, TCM compounds such as Buyang Huanwutang, Taohong Siwutang, and Huangqi Guizhi Wuwutang exert synergistic effects on cellular senescence-related pathways to improve nerve health and reduce DPN clinical symptoms. Therefore, this paper reviews the literature related to the interaction between cellular senescence and DPN from the perspective of cellular senescence, summarizing the mechanism of DPN and TCM intervention strategies.
3.Empirical study of input, output, outcome and impact of community-based rehabilitation stations
Xiayao CHEN ; Ying DONG ; Xue DONG ; Zhongxiang MI ; Jun CHENG ; Aimin ZHANG ; Didi LU ; Jun WANG ; Jude LIU ; Qianmo AN ; Hui GUO ; Xiaochen LIU ; Zefeng YU
Chinese Journal of Rehabilitation Theory and Practice 2026;32(1):83-89
ObjectiveTo investigate the present situation of input, output, outcome and impact of all registered community-based rehabilitation stations in Inner Mongolia in China, and analyze how the input predict the output, outcome and impact. MethodsFrom March 1st to April 30th, 2025, a questionnaire survey was conducted on all registered community-based rehabilitation stations in Inner Mongolia, covering four dimensions: input, output, outcome and impact. A total of 1 365 questionnaires were distributed. The input included four items: laws and policies, human resources, equipment and facilities, and rehabilitation information management. The output included two items: technical paths and benefits/effectiveness. The outcome included three items: coverage rates, rehabilitation interventions and functional results. The impact included two items: health and sustainability. Each item contained several questions, all of which were described in a positive way. Each question was scored from one to five. A lower score indicated that the situation of the community-based rehabilitation station was more in line with the content described in the question. Regression analysis was performed using the total score of each item of input dimension as independent variables, and the total scores of the output, outcome and impact dimensions as dependent variables. ResultsA total of 1 262 valid questionnaires were collected. The mean values of input, output, outcome and impact of community-based rehabilitation stations were 1.827 to 1.904, with coefficient of variation of 45.892% to 49.239%. The regression analysis showed that, rehabilitation information management, human resources, and laws and policies significantly predicted the output dimension (R² = 0.910, P < 0.001). Meanwhile, all four items in the input dimension predicted both the outcome (R² = 0.850, P < 0.001) and impact dimensions (R² = 0.833, P < 0.001). ConclusionInput, output, outcome and impact of the community-based rehabilitation stations in Inner Mongolia were generally in line with the content of the questions, although some imbalances were observed. Additionally, the input of community-based rehabilitation stations could significantly predict their output, outcome and impact.
4.Protective Effect of Shengxiantang on Myocardial Microvascular Injury in Rats with Chronic Heart Failure
Hui GAO ; Zeqi YANG ; Fan GAO ; Hongjing LI ; Aiyangzi LU ; Xingchao LIU ; Qiuhong GUO
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(7):35-42
ObjectiveTo explore the protective effect of Shengxiantang on cardiac function and myocardial microvascular injury in rats with chronic heart failure (CHF). MethodsThe CHF rat model was prepared by aortic arch constriction (TAC). Of the 72 SD rats, 8 were randomly selected as the sham operation group, where the chest was opened without ligating the aortic arch. The 40 successfully modeled rats were randomly divided into the model group, the Shengxiantang low-, medium-, and high-dose groups (5.1, 10.2, 20.4 g·kg-1), and the trimetazidine group (6.3 mg·kg-1), with 8 rats in each group. Drug administration began 4 weeks after modeling. The administration groups received the corresponding drugs by gavage, while the sham operation and model groups were given the same amount of distilled water for 8 consecutive weeks. Echocardiography was used to assess cardiac function. Enzyme-linked immunosorbent assay (ELISA) was used to detect the levels of nitric oxide (NO), endothelin (ET-1), vascular endothelial growth factor (VEGF), and von Willebrand factor (vWF). Ultrastructural changes of microvessels were observed by transmission electron microscopy. Immunohistochemistry was used to detect the expression levels of ATP synthase subunit (ATP5D) and F-actin in myocardial tissue. Western blot was used to detect the expression levels of occludin, claudin, vascular endothelial cadherin (VE-Cadherin), and zonula occludens-1 (ZO-1). Microvessel density was measured by immunofluorescence staining. ResultsCompared with the sham operation group, the ejection fraction (EF) and left ventricular shortening fraction (FS) in the model group were significantly decreased (P<0.01), while the left ventricular diastolic diameter (LVIDd), left ventricular systolic diameter (LVIDs), left ventricular end-diastolic posterior wall thickness (LVPWd), left ventricular end-systolic posterior wall thickness (LVPWs), left ventricular end-diastolic volume (LVVOLd), and left ventricular end-systolic volume (LVVOLs) were significantly increased (P<0.01). The levels of NO and VEGF were significantly decreased (P<0.01), while the levels of ET-1 and vWF were significantly increased (P<0.01). Under electron microscopy, the microvascular basement membrane was incomplete and the tight junctions were blurred. The expression levels of ATP5D, F-actin, occludin, claudin, ZO-1, and VE-Cadherin were significantly decreased (P<0.05, P<0.01), and the relative density of microvessels was significantly reduced (P<0.05, P<0.01). After intervention with Shengxiantang, the EF and FS of CHF rats significantly increased (P<0.01), while the LVIDd, LVIDs, LVPWd, LVPWs, LVVOLd, and LVVOLs significantly decreased (P<0.01). The levels of NO and VEGF significantly increased (P<0.01), while the levels of ET-1 and vWF significantly decreased (P<0.01). Under electron microscopy, the microvascular basement membrane was relatively complete and the tight junctions were more continuous. The expression levels of ATP5D, F-actin, occludin, claudin, ZO-1, and VE-Cadherin significantly increased (P<0.05, P<0.01), and the relative density of microvessels significantly increased (P<0.01). ConclusionShengxiantang can effectively improve the cardiac function of CHF rats, reduce microvascular endothelial injury, strengthen the connection between endothelial cells, and increase microvessel density, thereby protecting myocardial microvascular injury.
5.Protective Effect of Shengxiantang on Myocardial Microvascular Injury in Rats with Chronic Heart Failure
Hui GAO ; Zeqi YANG ; Fan GAO ; Hongjing LI ; Aiyangzi LU ; Xingchao LIU ; Qiuhong GUO
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(7):35-42
ObjectiveTo explore the protective effect of Shengxiantang on cardiac function and myocardial microvascular injury in rats with chronic heart failure (CHF). MethodsThe CHF rat model was prepared by aortic arch constriction (TAC). Of the 72 SD rats, 8 were randomly selected as the sham operation group, where the chest was opened without ligating the aortic arch. The 40 successfully modeled rats were randomly divided into the model group, the Shengxiantang low-, medium-, and high-dose groups (5.1, 10.2, 20.4 g·kg-1), and the trimetazidine group (6.3 mg·kg-1), with 8 rats in each group. Drug administration began 4 weeks after modeling. The administration groups received the corresponding drugs by gavage, while the sham operation and model groups were given the same amount of distilled water for 8 consecutive weeks. Echocardiography was used to assess cardiac function. Enzyme-linked immunosorbent assay (ELISA) was used to detect the levels of nitric oxide (NO), endothelin (ET-1), vascular endothelial growth factor (VEGF), and von Willebrand factor (vWF). Ultrastructural changes of microvessels were observed by transmission electron microscopy. Immunohistochemistry was used to detect the expression levels of ATP synthase subunit (ATP5D) and F-actin in myocardial tissue. Western blot was used to detect the expression levels of occludin, claudin, vascular endothelial cadherin (VE-Cadherin), and zonula occludens-1 (ZO-1). Microvessel density was measured by immunofluorescence staining. ResultsCompared with the sham operation group, the ejection fraction (EF) and left ventricular shortening fraction (FS) in the model group were significantly decreased (P<0.01), while the left ventricular diastolic diameter (LVIDd), left ventricular systolic diameter (LVIDs), left ventricular end-diastolic posterior wall thickness (LVPWd), left ventricular end-systolic posterior wall thickness (LVPWs), left ventricular end-diastolic volume (LVVOLd), and left ventricular end-systolic volume (LVVOLs) were significantly increased (P<0.01). The levels of NO and VEGF were significantly decreased (P<0.01), while the levels of ET-1 and vWF were significantly increased (P<0.01). Under electron microscopy, the microvascular basement membrane was incomplete and the tight junctions were blurred. The expression levels of ATP5D, F-actin, occludin, claudin, ZO-1, and VE-Cadherin were significantly decreased (P<0.05, P<0.01), and the relative density of microvessels was significantly reduced (P<0.05, P<0.01). After intervention with Shengxiantang, the EF and FS of CHF rats significantly increased (P<0.01), while the LVIDd, LVIDs, LVPWd, LVPWs, LVVOLd, and LVVOLs significantly decreased (P<0.01). The levels of NO and VEGF significantly increased (P<0.01), while the levels of ET-1 and vWF significantly decreased (P<0.01). Under electron microscopy, the microvascular basement membrane was relatively complete and the tight junctions were more continuous. The expression levels of ATP5D, F-actin, occludin, claudin, ZO-1, and VE-Cadherin significantly increased (P<0.05, P<0.01), and the relative density of microvessels significantly increased (P<0.01). ConclusionShengxiantang can effectively improve the cardiac function of CHF rats, reduce microvascular endothelial injury, strengthen the connection between endothelial cells, and increase microvessel density, thereby protecting myocardial microvascular injury.
6.Guidelines of ethics review for clinical application of medical technology
Jiyin ZHOU ; Mingjie ZI ; Qi LU ; Hui JIANG
Chinese Medical Ethics 2025;38(1):15-22
Access to the clinical application of medical technology is one of the core institutional contents of medical quality management, involving medical quality assurance, the achievement of patient safety goals, and medical service satisfaction. Medical technology is only permitted for clinical use after its safety and effectiveness have been verified through clinical research, as well as evaluated and reviewed by the medical technology clinical application management committee and ethics committee of this medical and health institution. Based on the relevant laws, regulations, and ethical principles, combined with the experience of ethical review in the clinical application of medical technology from some medical and health institutions, a thematic discussion was held to formulate ethical review guidelines for the clinical application of medical technology for references. These guidelines elaborated on the management system for access to the clinical application of medical technology in medical and health institutions, the system of ethics committees and the requirements of review norms, technical plans and their review points, key points for the implementation of informed consent, technical teams and conditions, and other aspects.
7.Herbal Textual Research on Dioscoreae Hypoglaucae Rhizoma, Dioscoreae Spongiosae Rhizoma, Smilacis Chinae Rhizoma and Smilacis Glabrae Rhizoma in Famous Classical Formulas
Li LU ; Yichen YANG ; Erhuan WANG ; Hui CHANG ; Li AN ; Shibao WANG ; Cunde MA ; Zhilai ZHAN
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(5):218-247
This article systematically reviews and verifies the medicinal materials of Dioscoreae Hypoglaucae Rhizoma(DHR), Dioscoreae Spongiosae Rhizoma(DSR), Smilacis Chinae Rhizoma(SCR) and Smilacis Glabrae Rhizoma(SGR) from the aspects of name, origin, producing area, quality, harvesting, processing and efficacy by consulting historical literature, in order to provide reference for the development and utilization of famous classical formulas containing the four medicinal materials. DHR, DSR, SCR and SGR have a long history of application as medicinal materials. However, due to their similar growth environment and medicinal properties, as well as their functions of promoting dampness, dispelling wind and removing numbness, there have been instances of homonymous foreign objects and homonymous synonyms throughout history, resulting in confusion of the origin. Therefore, it is necessary to conduct comparative analysis and systematic research for clarifying the historical development and changes of the four, in order to provide a basis for safe and effective medication. According to research, Bixie was first recorded in Shennong Bencaojing and has been historically known as Baizhi, Chijie, Zhumu, and other aliases. From ancient times to the mid-20th century, there has always been a situation where the rhizomes of Dioscorea plants and Smilax plants, and even the rhizomes of Heterosmilax plants, were mixed together to be used as medicinal herbs for Bixie. However, since the Tang dynasty, it has been clearly advocated that the rhizomes of Dioscorea plants have excellent quality and have been the mainstream throughout history. The 2020 edition of Chinese Pharmacopoeia categorized it into two types of medicinal herbs(DHR and DSR). Among them, the origin of DHR is the dry rhizomes of Dioscorea hypoglauca, and the origins of DSR are the dry rhizomes of D. spongiosa and D. futschauensis. In ancient times, due to different types, the corresponding production areas of DHR and DSR were also different. Nowadays, They are mainly produced in the southern region of the Yangtze River. Since the Tang dynasty, the quality of Bixie has been characterized by its white color and soft nature. In modern times, it has been summarized that those with white color, large and thin pieces, powdery texture, tough and elastic texture, and neat and unbreakable are the best. The harvesting times of DHR and DSR are in spring or autumn, with the best quality harvested in autumn. The mainstream processing methods of them are slicing and then using the raw products or wine-processed products. SCR was first recorded in Mingyi Bielu and has been known as Jinganggen, Tielingjiao, Tieshuazi, and other aliases in history. The mainstream source is the dry rhizomes of Smilax china in the past dynasties, with the best quality being those that are tough and rich in powder. The harvesting time is from the late autumn to the following spring, and the main processing method throughout history has been slicing for raw use. SGR was first recorded under the item of Yuyuliang in Variorum of Shennong's Classic of Materia Medica. It was listed as an independent medicinal material from Bencao Gangmu. In history, there were such aliases as Cao Yuyuliang, Lengfantuan, Xianyiliang, Tubixie, etc. The main source of the past dynasties was dry rhizomes of S. glabra. In history, there have also been instances of multiple plants belonging to the same genus, and even cases of mixing the rhizomes of plants in the genus Heterosmilax. It is mainly produced in Guangdong, Hunan, Hubei, Zhejiang, Sichuan, Anhui and other regions, its quality has been summarized as large in size, powdery in texture, with few veins, and light brown in cross-section since modern times. The harvesting time is in spring or autumn, and the main processing method throughout history has been slicing for raw use. DHR, DSR, SCR and SGR all have the effects of promoting dampness, dispelling wind, relieving rheumatism and detoxifying. However, their detoxification abilities are ranked as follows:SGR>SCR>Bixie(DHR and DSR). Especially for the treatment of limb spasms, arthralgia and myalgia, scrofula, and scabies caused by syphilis and mercury poisoning, SGR has a unique effect. Based on the research results, DHR is recommended to develop the famous classical formulas containing Bixie as the first choice for medicinal herbs. It should be harvested in autumn, sliced thinly while fresh, and processed according to the requirements of the famous classical formulas, without any requirements for raw use. Selecting the rhizomes of S. china, harvested in late autumn, and thinly sliced while fresh. If there are no special processing requirements in the formulas, use it raw. Selecting the rhizomes of S. glabra, it is harvested in autumn and thinly sliced while fresh. If there are no special processing requirements in the formulas, raw products can be used.
8.Effect of Yiqi Wenyang Huoxue Lishui Components on Cardiac Function and Mitochondrial Energy Metabolism in CHF Rats
Hui GAO ; Zeqi YANG ; Xin LIU ; Fan GAO ; Yangyang HAN ; Aiyangzi LU ; Xingchao LIU ; Qiuhong GUO
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(2):27-36
ObjectiveTo investigate the effects of Yiqi Wenyang Huoxue Lishui components on the cardiac function and mitochondrial energy metabolism in the rat model of chronic heart failure (CHF) and explore the underlying mechanism. MethodsThe rat model of CHF was prepared by transverse aortic constriction (TAC). Eight of the 50 SD rats were randomly selected as the sham group, and the remaining 42 underwent TAC surgery. The 24 SD rats successfully modeled were randomized into model, trimetazidine (6.3 mg·kg-1), and Yiqi Wenyang Huoxue Lishui components (60 mg·kg-1 total saponins of Astragali Radix, 10 mg·kg-1 total phenolic acids of Salviae Miltiorrhizae Radix et Rhizoma, 190 mg·kg-1 aqueous extract of Lepidii Semen, and 100 mg·kg-1 cinnamaldehyde) groups. The rats were administrated with corresponding agents by gavage, and those in the sham and model groups were administrated with the same amount of normal saline at a dose of 10 mL·kg-1 for 8 weeks. Echocardiography was used to examine the cardiac function in rats. Enzyme-linked immunosorbent assay was employed to determine the serum levels of N-terminal pro-B-type natriuretic peptide (NT-ProBNP), hypersensitive troponin(cTnI), creatine kinase (CK), lactate dehydrogenase (LD), free fatty acids (FFA), superoxide dismutase (SOD), and malondialdehyde (MDA). The colorimetric assay was employed to measure the levels of adenosine triphosphate (ATP), adenosine diphosphate (ADP), and adenosine monophosphate (AMP) in the myocardial tissue. The pathological changes in the myocardial tissue were observed by hematoxylin-eosin staining and Masson staining. The Na+-K+-ATPase and Ca2+-Mg2+-ATPase activities in the myocardial tissue were determined by the colorimetric assay. The ultrastructural changes of myocardial mitochondria were observed by transmission electron microscopy. Western blot was employed to determine the protein levels of ATP synthase subunit delta (ATP5D), glucose transporter 4 (GLUT4), and carnitine palmitoyltransferase-1 (CPT-1). The mitochondrial complex assay kits were used to determine the activities of mitochondrial complexes Ⅰ, Ⅱ, Ⅲ, and Ⅳ. ResultsCompared with the sham group, the model group showed a loosening arrangement of cardiac fibers, fracture and necrosis of partial cardiac fibers, inflammatory cells in necrotic areas, massive blue fibrotic tissue in the myocardial interstitium, increased collagen fiber area and myocardial fibrosis, destroyed mitochondria, myofibril disarrangement, sparse myofilaments, and fractured and reduced cristae. In addition, the rats in the model group showed declined ejection fraction (EF) and fractional shortening (FS), risen left ventricular end-diastolic diameter (LVIDd), left ventricular end-systolic diameter (LVIDs), left ventricular end-diastolic posterior wall thickness (LVPWd), left ventricular end-systolic posterior wall thickness (LVPWs), left ventricular end-diastolic volume (LVVOLd), and left ventricular end-systolic volume (LVVOLs), elevated levels of NT-ProBNP, cTnI, CK, MDA, FFA, and LD, lowered level of SOD, down-regulated protein levels of GLUT4 and CPT-1, decreased activities of Na+-K+-ATPase, Ca2+-Mg2+-ATPase, and respiratory complexes Ⅰ-Ⅳ, and declined levels of ATP5D, ATP, ADP, and AMP (P<0.05, P<0.01). Compared with the model group, the Yiqi Wenyang Huoxue Lishui components and trimetazidine groups showed alleviated pathological damage of the mitochondria and mycardial tissue, risen EF and FS, declined LVIDd, LVIDs, LVPWd, LVPWs, LVVOLd, and LVVOLs, lowered levels of NT-ProBNP, cTnI, CK, MDA, FFA, and LD, elevated level of SOD, up-regulated protein levels of GLUT4 and CPT-1, increased activities of Na+-K+-ATPase, Ca2+-Mg2+-ATPase, and respiratory complexes Ⅰ-Ⅳ, and elevated levels of ATP5D, ATP, ADP, and AMP (P<0.05, P<0.01). ConclusionYiqi Wenyang Huoxue Lishui components can improve the cardiac function, reduce myocardial injury, regulate glucose and lipid metabolism, optimize the utilization of substrates, and alleviate the damage of mitochondrial structure and function, thus improving the energy metabolism of the myocardium in the rat model of CHF.
9.Accuracy of modified implant template of assisted implantation in missing second molars
Yuhang ZHANG ; Yuning ZENG ; Jindi ZENG ; Yixuan LU ; Hui YE ; Jianxin JI
Chinese Journal of Tissue Engineering Research 2025;29(4):738-744
BACKGROUND:Computer-assisted implant surgery can improve implantation accuracy,but the use of implant template in the posterior tooth area is limited for patients with small opening and small interocclusal distance.Therefore,the digital guide has been improved. OBJECTIVE:To study the effect of modified implant template on the accuracy of assisted implantation in missing second molars. METHODS:From July 2020 to July 2023,40 patients who received digital guide plate implantation or free hand implantation to repair missing second molars were selected from First Affiliated Hospital of Guangzhou Medical University.According to the coin toss method,patients were randomly divided into a trial group(n=22;modified digital guide assisted implantation)and a control group(n=18;free hand implantation).The data of neck deviation,tip deviation,depth deviation,and angle deviation were compared between groups for preoperative and postoperative cone beam CT overlap analysis.One week after the operation,the patients'satisfaction with the operation was assessed by visual analog scale score. RESULTS AND CONCLUSION:(1)The trial group included 25 implants(12 in the upper jaw and 13 in the lower jaw);the control group included 23 implants(8 in the upper jaw and 15 in the lower jaw).The neck deviation,tip deviation,depth deviation,and angle deviation of the trial group were all smaller than those of the control group(P<0.05,P<0.001).There was no significant difference in accuracy between the maxillary and mandibular implant site in the trial group(P>0.05).(2)There was no significant difference in satisfaction with the operation between the two groups(P>0.05).(3)The results showed that improving the digital guide plate for assisted implantation for missing second molar can improve surgical accuracy and is suitable for patients with small opening and small interocclusal distance in the posterior tooth area.
10.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.

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