BackgroundAnxiety disorder is a common mental disorder， with its prevalence showing a continuous upward trend， significantly affecting the quality of life and social function of patients. Due to the lack of objective and reliable biomarkers in clinical practice， the early identification and treatment of anxiety disorder have been somewhat limited. Plasma proteins have the potential to serve as biomarkers for mental diseases， however， the causal relationship between them and anxiety disorder remains unclear. ObjectiveTo identify the plasma proteins that have a causal relationship with anxiety disorders， and to elucidate the associated biological pathways， in order to provide references for the search for biomarkers of anxiety disorders and the exploration of potential therapeutic targets. MethodsBased on the protein quantitative trait locus （pQTL） data of 4 907 plasma proteins covering 35 559 Icelandic individuals from the deCODE database， and the genome-wide association studies （GWAS） data of 50 486 patients with anxiety disorders and 330 460 healthy controls， the inverse-variance weighted （IVW） method was used as the main analysis method， supplemented by MR-Egger method， weighted median method， simple model method， and weighted model method for bidirectional Mendelian randomization analysis. Enrichment analysis of gene ontology （GO） and Kyoto Encyclopedia of Genes and Genomes （KEGG） pathways was conducted for the related proteins. Sensitivity analysis was performed using Cochran's Q test， MR-Egger intercept test， MR-PRESSO test， and leave-one-out analysis to evaluate the robustness of the results. ResultsA total of 10 plasma proteins were identified as significantly associated with anxiety disorders. Among these， SPATA9 （OR=0.856， 95% CI： 0.784–0.934， P<0.01） and PDE5A （OR=0.911， 95% CI： 0.864–0.961， P<0.01） were identified as protective factors， while CRYGD （OR=1.209， 95% CI： 1.095–1.334， P<0.01）， BTN3A3 （OR=1.045， 95% CI： 1.018–1.073， P<0.01）， SERPINB13 （OR=1.102， 95% CI： 1.040–1.168， P<0.01）， ERBB4 （OR=1.283， 95% CI： 1.109–1.484， P<0.01）， LSAMP （OR=1.096， 95% CI： 1.037–1.158， P<0.01）， ICOSLG （OR=1.283， 95% CI： 1.104–1.490， P<0.01）， DNAJB11 （OR=1.172， 95% CI： 1.076–1.277， P<0.01）， and TREML1 （OR=1.115， 95% CI： 1.054–1.179， P<0.01） were identified as risk factors. The sensitivity analysis showed that the results were robust， with no heterogeneity （Cochran's Q test P>0.05） or pleiotropy （MR-Egger intercept test P>0.05）. Enrichment analysis indicated that these plasma proteins were enriched in biological processes such as T-cell signal transduction， lymphocyte proliferation， cell membrane structure and synaptic function， as well as the intestinal immune network that produces IgA and the ErbB signaling pathway. ConclusionThis study identified 10 plasma proteins associated with anxiety disorders. The functions of these plasma proteins involve multiple biological processes such as neural development and immune regulation.

Objective: To explore human papillomavirus (HPV) and vaccination related knowledge and vaccination willingness of college students in Guizhou Province and their related factors, so as to provide a basis for formulating targeted intervention strategies. Methods: From May to June 2025, by applying convenience sampling method,4 567 college students were selected from 8 universities in Guizhou Province to conduct a questionnaire survey. Awareness of HPV and vaccination related knowledge, vaccination willingness as well as related factors among college students were also analyzed. The t test and Chi square test were used for comparison between groups, and multifactor Logistic regression was employed to analyze the related factors of HPV vaccination willingness among college students. Results: The HPV and vaccine knowledge score of college students in Guizhou Province was ( 10.50 ±2.09), and the score of girls (10.81±1.82) was higher than that of boys (10.19±2.30) ( t=10.09, P <0.01). The HPV vaccination willingness rate of college students was 65.6%, and the rate was higher in girls than in boys (67.1%,64.1%, χ 2=4.75, P <0.05). Multi factor Logistic regression analysis showed that ethnicity and HPV testing were related factors that affected college students willingness to vaccinate (minority: OR boy =1.23, OR girl =1.35; previous HPV testing: OR boy =0.56, OR girl =0.59); boys willingness to vaccinate was related to the number of sexual partners ( OR =0.60), family history of cancer ( OR =0.65), and sexual behavior related HPV knowledge scores ( OR =0.89), while girls willingness to vaccinate was related to bisexual sexual orientation ( OR =0.59), previous HIV testing ( OR =0.60), and HPV and vaccine basic knowledge scores ( OR =0.86) (all P <0.05). Conclusions College students in Guizhou Province have higher HPV vaccine related knowledge scores and are more willing to vaccinate, and those above are higher in girls than in boys. Health education content should be optimized based on gender differences, and promote the willingness and behavior of HPV vaccination among college students.

Purpose: The aim of this study is to determine the impact of solute carrier family 3 member 2 (SLC3A2) on the malignant phenotype of gliomas and its role in regulating ferroptosis sensitivity. Materials and Methods: The malignant phenotype of glioma was assessed by cell proliferation assay, colony formation assay, EdU assay, wound healing, and Transwell experiments. We further validated the impact of reduced SLC3A2 expression on the sensitivity to ferroptosis in glioma cells through Cell Counting Kit-8 assays, flow cytometry, western blotting, and transmission electron microscopy. Western blot was used to explore how SLC3A2 affects glioma sensitivity to ferroptosis through the AKT/NF-E2-related factor 2 (NRF2)/glutathione peroxidase 4 (GPX4) axis. By establishing a subcutaneous xenograft tumor model in BALB/c-nude mice, we investigated the growth of tumors following the knockout of SLC3A2 in glioma cells. Results: Downregulation of SLC3A2 suppressed the malignant phenotype of glioma by blocking the cell cycle and epithelial-mesenchymal transition processes. On the other hand, loss of SLC3A2 not only downregulated SLC7A11 but also prevented the activation of the AKT/NRF2/GPX4 axis. These lead to increased accumulation of reactive oxygen species and lipid peroxides, ultimately enhancing the susceptibility of glioma to ferroptosis. Conclusion Our findings suggest that SLC3A2 is an oncogene in gliomas, promoting their occurrence and development. It plays a critical role in ferroptosis resistance through the AKT/NRF2/GPX4 axis.

Erosive pustular dermatosis of the scalp (EPDS) is a rare superficial skin inflammatory disease that occurs on the scalp, and its pathogenesis is still unclear. Its clinical manifestations are similar to those of infective inflammation and malignant tumors, and its diagnosis is highly dependent on non-specific pathological changes, so the diagnosis is relatively difficult. Clinically, topical glucocorticoids are the main treatment method, but treatment outcomes vary greatly among individuals, and patients with refractory EPDS need other treatment methods. EPDS generally requires long-term topical glucocorticoid therapy, and adverse drug reactions are common. This review summarizes research progress in EPDS in recent years, in order to improve clinicians' understanding of this disease.

Congenital triangular alopecia is a kind of non-inflammatory and non-cicatricial alopecia, and most cases develop this disease at the ages of 2 - 9 years. The pathogenesis of congenital triangular alopecia is still unclear, and there is a lack of effective treatments. Congenital triangular alopecia is rather liable to be misdiagnosed and erroneously treated, and dermoscopy helps confirm the diagnosis. This review summarizes the progress in the epidemiology, pathogenesis, clinical diagnosis, and treatment of congenital triangular alopecia.

Morphea alopecia is a rare secondary cicatricial alopecia, often caused by linear scleroderma of the scalp. When hair loss appears as the only symptom of morphea, it is easily confused with other localized alopecia. The diagnosis of morphea alopecia depends on histopathologic and dermoscopic examinations. In order to improve the understanding of morphea alopecia among clinicians, this review summarizes research progress in its pathogenesis, clinical and pathological characteristics, diagnosis and treatment.

Periodontitis, a common chronic inflammatory disease, progressively damages the supporting tissues of teeth, ultimately resulting in tooth loss. The rising incidence of periodontitis in adults has prompted researchers to observe a frequent co-occurrence of mental health disorders (such as anxiety disorders, depression disorders) in patients undergoing periodontitis onset and treatment. The existence of severe periodontitis can even aggravate the mental and psychological disorders of patients. Furthermore, the long-term fast-paced, high-pressure modern life is easy to cause a series of psychological problems, in turn affecting the occurrence and development of periodontitis. At present, researchers have reported the correlation between periodontitis and anxiety disorders/depression disorders. However, due to the lack of systematic understanding, most of them are clinical investigations or epidemiological statistics without deep mechanism studies. In view of the above problems, this article elucidates the bidirectional relationship between periodontitis and depression/anxiety disorders in recent years by examining recent epidemiological findings, exploring potential bidirectional pathogenic mechanisms, and discussing current treatment strategies. Ultimately, this review seeks to provide new perspectives for improving both oral and mental health outcomes in patients affected by periodontitis and anxiety/depression disorders.

BackgroundGenetic factor plays an important role in the pathogenesis of panic disorder. Previous studies have revealed that immune system dysregulation is closely related to mental disorders such as panic disorder， while the relationship between panic disorder and immune-related gene expression remains unclear. ObjectiveTo explore the relationship between the expression of CXCL8， IL6R， JUN， PTGS2， TGFBR1， TLR2， CCR4 genes and panic disorder， providing references for the diagnosis and treatment of panic disorder. MethodsA total of 52 patients who met the diagnostic criteria for panic disorder according to the Diagnosed and Statistical Manual of Mental Disorders， fourth edition （DSM-IV） were enrolled at the Psychosomatic Medicine Center of Sichuan Provincial People's Hospital from January 2020 to March 2021. Another 72 healthy individuals matched for age and gender from Chengdu were concurrently recruited as control group. The Panic Disorder Severity Scale （PDSS） was used to assess the severity of symptoms in panic disorder patients. Quantitative real-time polymerase chain reaction （PCR） was used to detect gene expression levels in two groups. Spearman correlation analysis was adopted to determine the correlation between PDSS score and immune-related gene expression in research group. ResultsThe expression of the JUN， PTGS2 and TGFBR1 genes were significant higher in panic disorder patients than those in control group （Z=-4.172， -2.086， -3.018， P<0.05 or 0.01）. After false discovery rate （FDR） correction for multiple testing， the differential expression of JUN and TGFBR1 genes remained statistically significant between two groups （P<0.05）. There was no significant difference in the expression of CCR4， CXCL8， IL6R and TLR2 genes between two groups （P>0.05）. Correlation analysis revealed that the expression of the JUN gene in panic disorder patients was positively correlated with PDSS score （r=0.360， P<0.01）， while the CCR4， CXCL8， IL6R， PTGS2， TGFBR1 and TLR2 genes showed no statistically significant correlation with the PDSS score （P>0.05）. ConclusionThe expression of the JUN and TGFBR1 genes may be associated with panic disorder， and the expression of the JUN gene correlated with the severity of panic disorder. ［Funded by Science and Technology Plan Project of Sichuan Provincial Department of Science and Technology （number， 2021YJ0440）］

BACKGROUND:In the preparation of injectable extracellular matrix materials,most of the materials require pepsin digestion followed by combination with other matrix components like hydrogels for pulp tissue regeneration,which also means the destruction of the microenvironment retained by natural extracellular matrix materials.OBJECTIVE:To investigate the effect of injectable dental pulp extracellular matrix prepared by grinding treatment on the regeneration of dental pulp tissue.METHODS:(1)The dental pulp tissue from pig teeth was prepared into acellular dental pulp matrix materials after acellular treatment.After freezing in liquid nitrogen and high-speed grinding,the injectable dental pulp extracellular matrix was prepared.Then,the differences in cell adhesion efficiency and microstructure between the injectable dental pulp extracellular matrix and natural dental pulp extracellular matrix were compared.Immunohistochemical analysis was used to analyze extracellular matrix protein components in injectable dental pulp extracellular matrix.(2)Injectable dental pulp extracellular matrix material inoculated with dental pulp stem cells was injected into the dental pulp cavity constructed from the dentin matrix material.The samples were obtained after 1,3,and 5 weeks of subcutaneous implantation in nude mice to observe the in vivo conversion rate of injectable dental pulp extracellular matrix materials and the regeneration ability of ectopic dental pulp tissue under the skin of nude mice.RESULTS AND CONCLUSION:(1)Compared with the dental pulp extracellular matrix,the injectable dental pulp extracellular matrix significantly improved the cell adhesion rate and retained the porous collagen structure similar to that of natural dental pulp extracellular matrix.(2)Compared with the natural dental pulp extracellular matrix,immunohistochemical staining showed that there was no significant difference in the expression of fibronectin,collagen type Ⅰ,and integrin β1 in the injectable dental pulp extracellular matrix,while the expression of fibronectin was significantly decreased.(3)In vivo experiments show that the injectable dental pulp extracellular matrix has excellent angiogenesis ability and promotes the formation of pulp-like tissues.The results exhibit that the milled injectable dental pulp extracellular matrix can still be used as an effective scaffold for the regeneration of dental pulp.

Objective Aimed at investigating the effect and molecular mechanism of artemisinin on hemo-dynamics and vascular remodeling in monocrotaline(MCT)-induced pulmonary arterial hypertension(PAH)rats.Methods 30 male SD rats were randomly divided into 3 groups(n=10):control group,MCT-induced PAH group(MCT group,60 mg/kg)and artemisinin intervention group(50 mg/kg).At 28 days after modeling,the right ventricular systolic pressure(RVSP),mean pulmonary artery pressure(mPAP),heart rate and right ventricular hypertrophy index(RVHI)were measured to evaluate the development of PAH.HE staining and α-SMA immuno-histochemistry were used to observe the morphology and assess muscularization of pulmonary arterioles,and the percentage of medial wall thickness(WT%),the percentage of vascular wall area(WA%)and the proportion of muscular vessels were calculated to evaluate the degree of pulmonary vascular remodeling.The mRNA and protein levels of HIF-1α and LDHA were detected by real-time PCR and Western blot,respectively.Pyruvate and lactate concentration in lung tissue was measured using pyruvate and lactateassay kit.Results Compared with the control group,the RVSP,mPAP,heart rate and RVHI were significantly increased in MCT-induced PAH rats(all P<0.05).Histological analysis showed that the increasedmedial wall thickness of small pulmonary arteries and vascular muscularization were observed in MCT-treated rats compared with control rats.WT%,WA%and muscularization degrees of pulmonary arterioles were higher in MCT-treated rats than those in the control group(all P<0.05),suggesting successful construction of PAH model.Compared with the MCT group,the RVSP,mPAP,heart rate and RVHI decreased in the rats treated with artemisinin(all P<0.05),accompanied with lower WT%and WA%(P<0.05),and muscularization of pulmonary arterioles was improved(P<0.05).Further study showed the mRNA and protein levels ofHIF-1α and LDHA in lung tissue of MCT-induced PAH rats were higher than those in the control group,the content of lactate and pyruvate and the ratio of lactate to pyruvate were higher than that in the control group(all P<0.05).However,the mRNA and protein levels of HIF-1α and LDHA in lung tissue of rats treated with artemisinin were lower than those in the MCT group,the content of lactate and pyruvate and the ratio of lactate to pyruvate were lower than that in the MCT group(all P<0.05).Conclusion Artemisinin improves hemodynamic and pulmonary vascular remodeling in PAH rats through inhibiting HIF-1α/LDHA signaling pathway-mediated glycolysis.