BACKGROUND:With aging,the regenerative capacity and differentiation function of bone marrow mesenchymal stem cells progressively decline,reducing bone tissue repair efficacy.Thus,identifying bone marrow mesenchymal stem cell subpopulations with enhanced osteogenic potential is of significant importance for advancing bone tissue engineering.OBJECTIVE:To evaluate the osteogenic differentiation potential differences between STRO-1 positive and negative bone marrow mesenchymal stem cells under osteogenic induction conditions.METHODS:SD rat bone marrow mesenchymal stem cells were isolated and cultured.The expression of CD29,CD45,CD90,and STRO-1 was identified via flow cytometry and immunofluorescence.Immunomagnetic cell sorting was used to separate STRO-1 positive and negative bone marrow mesenchymal stem cells.The cells of two groups were subjected to osteogenic induction for 7 and 14 days.qRT-PCR and western blotting were performed to analyze differences in osteogenesis-related gene expression(Collagen I,Runt-related transcription factor 2,osteoprotegerin,and osteocalcin)and protein levels.Alizarin red staining and alkaline phosphatase staining were used to observe calcium nodule formation.RESULTS AND CONCLUSION:Flow cytometry showed high expression levels of CD29 and CD90 and low expression of CD45,with a positive STRO-1 expression rate of 12.8％.Immunofluorescence results were consistent with those of flow cytometry.After magnetic cell sorting,STRO-1 positive cells demonstrated a higher colony formation rate than STRO-1 negative cells.On day 14,STRO-1 positive cells showed significantly higher osteogenic differentiation potential than on day 7,with significantly elevated osteogenesis-related marker levels compared to STRO-1 negative cells(P＜0.01).The findings indicate that STRO-1 positive bone marrow mesenchymal stem cells exhibit significant advantages in osteogenic potential,providing a theoretical basis for their selection as ideal seed cells in bone tissue engineering.In future applications,they may represent a promising therapeutic approach for bone defect repair.

Objective:To screen and analyze the carcinogenesis-related differential expression profile of long non-coding RNAs(LncRNAs)in oral lichen planus(OLP)mucosa tissue,and preliminarily analyze their functions,to explore their possible role in the development of OLP.Methods:High-throughput sequencing technology was used to construct differential expression profile from 5 cases of erosive OLP lesions and 5 of normal oral mucosa.LncRNAs that are closely related to the carcinogenesis of OLP were ob-tained by bioinformatics analysis.Results:400 LncRNAs associated with OLP were screened,of which 250 were up-regulated and 150 were down-regulated,and 5 LncRNAs were obtained with differential expression associated with OLP carcinogenesis:LncRNA 54055,100128560,399717,378825 and 100130231.Conclusion:400 LncRNAs are differentially expressed in the mucosa of erosive OLP lesions,and 5 of them are related to the incidence and carcinogenesis tendency of OLP.

BACKGROUND:Nerve growth factor is a protein that induces nerve growth and regulates biological behaviors such as proliferation and differentiation of mesenchymal stem cells. OBJECTIVE:To investigate the promoting effect of nerve growth factor on chondrogenic differentiation of bone marrow mesenchymal stem cells. METHODS:Rabbit bone marrow mesenchymal stem cells were isolated and cultured,and nerve growth factor was transfected into bone marrow mesenchymal stem cells by lentiviral transfection.The effects of nerve growth factor on the proliferation,migration,hypertrophic differentiation,and chondrogenic differentiation of bone marrow mesenchymal stem cells were detected by CCK-8 assay,cell scratch assay,alizarin red staining,and western blot assay,using the transfected null-loaded virus as control.To further investigate the promoting effect of nerve growth factor on the chondrogenic differentiation of bone marrow mesenchymal stem cells,interleukin 1β was added in bone marrow mesenchymal stem cells transfected with empty virus and nerve growth factor for 14 days.The expression of proteins related to chondrogenic differentiation and hypertrophic differentiation was detected by western blot assay. RESULTS AND CONCLUSION:(1)CCK-8 assay results showed that nerve growth factor had no significant effect on the proliferation of bone marrow mesenchymal stem cells.(2)Compared with the control group,overexpression of nerve growth factor enhanced the migration ability of the cells,and the expression of cartilage-associated proteins type II collagen and SOX9 was up-regulated(P<0.05),while the expression of hypertrophic-associated proteins type X collagen and Runx2 was down-regulated(P<0.05).(3)Compared with the empty virus+interleukin 1β group,the expression of cartilage-associated proteins type II collagen and Sox9 was up-regulated(P<0.05),and the expression of hypertrophy-associated proteins type X collagen and Runx2 was down-regulated after overexpression of nerve growth factor(P<0.05).(4)The results indicated that nerve growth factor could promote the chondrogenic differentiation of bone marrow mesenchymal stem cells.

Objective To evaluate the effectiveness of thermal tomography in breast cancer (BC) screening. Methods We conducted a general population-based BC screening in three regions of Hubei Province (Xiantao, Hongan, and Yangxin Districts). Participants underwent a questionnaire-based interview for baseline data collection. They then received a physical examination, thermal tomography, and ultrasound from doctors and technicians. We compared the efficacies, including sensitivity, specificity, and false-positive rates, of ultrasound and thermal tomography in BC screening. Results A total of 59 712 eligible women were included in this screening program. The BI-RADS 1, 2, 3, 4, and 5 accordance rates between the two screening methods were 0.9549, 0.8047, 0.9037, 0.3352, and 0, respectively. The overall accordance rate was 0.933 1. The kappa consistency results showed that the Cicchetti-Allison and Fleiss-Cohen kappa values were 0.7970 and 0.8583, respectively. Although the two methods had equal sensitivities, specificity was higher in thermal tomography than in ultrasound. The false-positive rate was lower in thermal tomography than in ultrasound. The area under the receiver operating characteristic (ROC) curve of thermal tomography was significantly larger than that of ultrasound. Conclusion The general consistency between thermal tomography and ultrasound in BC screening was high. Thermal tomography outperformed ultrasound in terms of specificity and diagnostic efficiency. Therefore, thermal tomography has a high application value for general population-based BC screening.

Objective To study the application effects of a hypertension self-management intervention program based on the chronic illness trajectory framework(CITF).Methods A total of 100 hypertension pa-tients treated at Qiandongnan Miao and Dong Autonomous Prefecture People's Hospital and hypertension management demonstration sites from July 2023 to July 2024 were selected as study subjects.They were ran-domly divided into a study group and a control group(50 cases in each group)using a random number table method.The control group received conventional intervention,including basic measures such as hypertension education,dietary management,psychological counseling,medication guidance,and blood pressure monitoring.The study group received a personalized self-management intervention program based on CITF.Blood pres-sure,medication adherence,hypertension knowledge level,and chronic disease management self-efficacy were compared between the two groups at baseline(before intervention)and 3 months after intervention(after in-tervention).Results After the intervention,systolic and diastolic blood pressure decreased in both groups compared to pre-intervention levels,with the study group showing lower values than the control group(P<0.05).The scores of hypertension knowledge level scale(HK-LS),MMAS-8,and chronic disease management self-efficacy scale increased in both groups compared to pre-intervention levels,with the study group scoring higher than the control group(P<0.05).Conclusion The CITF-based self-intervention program effectively improves patients'blood pressure levels,enhances health knowledge level,medication adherence,and chronic disease self-management efficacy,promoting proactive disease coping and strengthened self-management.

Objective To analyze the expression and clinical significance of stimulator of interfer-on genes(STING),C-C motif chemokine ligand 5(CCL5),interferon regulatory factor 3(IRF3)and programmed death ligand-1(PDL1)in squamous cell lung cancer.Methods A total of 56 pa-tients with squamous cell lung cancer were enrolled.Resected tumor tissues and adjacent non-tumor tissues(located more than 5 cm from the tumor margin)were collected.Immunohistochemical staining was performed to detect the expression of STING,CCL5,IRF3 and PDL1.The correlations of STING,CCL5,IRF3 and PDL1 with clinical data were analyzed.The relationship between the expression of STING,CCL5,IRF3 and PDL1 in lung squamous cell carcinoma tissues and prognosis was also evalua-ted.The prognostic factors of patients with lung squamous cell carcinoma were analyzed.Results The positive rate of STING expression in lung squamous cell carcinoma tissues was significantly lower than that in adjacent non-tumor tissues,whereas the positive rates of CCL5,IRF3 and PDL1 were significantly higher(P＜0.05).The expression levels of STING,CCL5,IRF3 and PDL1 were associated with tumor diameter,TNM stage,lymph node metastasis and differentiation degree(P＜0.05).The 3-year survival rate of STING positive expression patients was significantly higher than that of STING negative expression patients(P＜0.05).The 3-year survival rate of CCL5 positive,IRF3 positive and PDL1 positive expression patients was significantly lower than that of CCL5 negative,IRF3 negative and PDL1 negative expression patients(P＜0.05).STING,CCL5,IRF3 and PDL1 were identified as prognostic factors for patients with squamous cell lung cancer(P＜0.05).Conclusion In squamous cell lung cancer tissues,STING is expressed at low levels,while CCL5,IRF3 and PDL1 are ex-pressed at high levels.These findings have significant clinical value in assessing the prognosis of pa-tients with squamous cell lung cancer.

BACKGROUND:With aging,the regenerative capacity and differentiation function of bone marrow mesenchymal stem cells progressively decline,reducing bone tissue repair efficacy.Thus,identifying bone marrow mesenchymal stem cell subpopulations with enhanced osteogenic potential is of significant importance for advancing bone tissue engineering.OBJECTIVE:To evaluate the osteogenic differentiation potential differences between STRO-1 positive and negative bone marrow mesenchymal stem cells under osteogenic induction conditions.METHODS:SD rat bone marrow mesenchymal stem cells were isolated and cultured.The expression of CD29,CD45,CD90,and STRO-1 was identified via flow cytometry and immunofluorescence.Immunomagnetic cell sorting was used to separate STRO-1 positive and negative bone marrow mesenchymal stem cells.The cells of two groups were subjected to osteogenic induction for 7 and 14 days.qRT-PCR and western blotting were performed to analyze differences in osteogenesis-related gene expression(Collagen I,Runt-related transcription factor 2,osteoprotegerin,and osteocalcin)and protein levels.Alizarin red staining and alkaline phosphatase staining were used to observe calcium nodule formation.RESULTS AND CONCLUSION:Flow cytometry showed high expression levels of CD29 and CD90 and low expression of CD45,with a positive STRO-1 expression rate of 12.8％.Immunofluorescence results were consistent with those of flow cytometry.After magnetic cell sorting,STRO-1 positive cells demonstrated a higher colony formation rate than STRO-1 negative cells.On day 14,STRO-1 positive cells showed significantly higher osteogenic differentiation potential than on day 7,with significantly elevated osteogenesis-related marker levels compared to STRO-1 negative cells(P＜0.01).The findings indicate that STRO-1 positive bone marrow mesenchymal stem cells exhibit significant advantages in osteogenic potential,providing a theoretical basis for their selection as ideal seed cells in bone tissue engineering.In future applications,they may represent a promising therapeutic approach for bone defect repair.

Objective:To screen and analyze the carcinogenesis-related differential expression profile of long non-coding RNAs(LncRNAs)in oral lichen planus(OLP)mucosa tissue,and preliminarily analyze their functions,to explore their possible role in the development of OLP.Methods:High-throughput sequencing technology was used to construct differential expression profile from 5 cases of erosive OLP lesions and 5 of normal oral mucosa.LncRNAs that are closely related to the carcinogenesis of OLP were ob-tained by bioinformatics analysis.Results:400 LncRNAs associated with OLP were screened,of which 250 were up-regulated and 150 were down-regulated,and 5 LncRNAs were obtained with differential expression associated with OLP carcinogenesis:LncRNA 54055,100128560,399717,378825 and 100130231.Conclusion:400 LncRNAs are differentially expressed in the mucosa of erosive OLP lesions,and 5 of them are related to the incidence and carcinogenesis tendency of OLP.

The infection rate of Helicobacter pylori remains high worldwide,and early prevention and treatment of Helicobacter pylori infection is crucial.The primary task of prevention and treatment of Helicobacter pylori infection is anti-adhesion,and the anti-adhesion targets of traditional Chinese medicine are diverse and have obvious advantages.The adhesion mechanisms of Helicobacter pylori mainly include acid adaptation,adhesin binding to receptors,and changes in gastric microecology.The mechanism of anti-adhesion in traditional Chinese medicine can be divided into direct anti-adhesion to build gastric mucosal barrier,inhibit the expression of Helicobacter pylori adhesion and change the living environment of H.pylori and indirect anti-adhesion to improve the body's immunity.This article reviews the pharmacodynamic mechanism of TCM against H.pylori adhesion in recent years,aiming to provide new ideas for the study of H.pylori adhesion mechanism and the prevention and treatment of H.pylori infection with TCM.

Due to the complexity of traditional Chinese medicine （TCM） interventions and the diversity of herbal components， single-omics technologies such as genomics， transcriptomics， proteomics， and metabolomics often cannot comprehensively elucidate the scientific connotations of TCM. Multi-omics technologies driven by system biology can analyze the theoretical connotations and application mechanisms of TCM from different levels such as genes， gene expression， proteins， and metabolites， in line with the holistic view of TCM， which helps to promote the modernization of TCM. By reviewing the literature on the application of omics technologies in the field of TCM， it is found that multi-omics technologies have been widely used in TCM for syndrome differentiation， evaluation of herbal quality， elucidation of pharmacological mechanisms， and drug toxicity assessment， providing comprehensive explanations of the mechanisms of action of TCM and overcoming the limitations of single-omics technologies， and having obtained significant achievements. However， multi-omics technologies also face challenges such as high cost， difficulties in data analysis due to large data volumes， and insufficient translation of research results. In the future， it is expected that through strengthening interdisciplinary cooperation， conducting long-term and dynamic clinical research， standardizing and normalizing data analysis processes， adopting appropriate and reasonable multi-omics integration patterns， establishing multi-omics databases for TCM， revealing the individualized characteristics， therapeutic mechanisms， and disease regulatory networks of TCM， the modernization of TCM will be promoted.