In the context of the rapid development of 5G technology， the development of artificial intelligence （AI） in traditional Chinese medicine （TCM） faces new opportunities and challenges. Focusing on how to uphold tradition while innovating in the development of AI in TCM， starting from the current development status of AI in Chinese medicine， including the integration of four diagnostic methods， syndrome differentiation and treatment， auxiliary diagnosis and treatment， research and development of Chinese herbal medicine， prevention and treatment of diseases， knowledge inheritance， and other aspects， this paper discussed the support of policies and technical advancements， as well as development opportunities such as increased demand for health. Regarding machine ethics， data ethics， regulatory review， and other aspects， it also proposed some suggestions that the training algorithm should be improved to assist medical work； data ownership should be clarified to ensure data security； and an AI ethics committee should be set up to improve the review system， aiming to maximize the advantages of smart healthcare and accelerate the modernization of TCM for the benefit of patients and the service of human health.

AIM: To design and construct recombinant epitope nucleotides vaccine of glycoprotein B(gB)and glycoprotein D(gD)of herpes simplex virus type 1(HSV-1), and to investigate its immunoprotective effects and tissue expression in animal models.METHODS: The HSV-1 gB and gD epitope genes were selected and tandem assembled to construct the recombinant protein-coding gene X, which was transducted into the prokaryotic expression vector pET28(a). The recombinant protein was synthesized and utilized to generate monoclonal antibodies, which were subsequently used to immunize New Zealand white rabbits. The immunogenicity of the purified protein and the presence of polyclonal antibodies in the serum were tested through separating serum from cardiac blood, and the serum antibody titers were determined. The pcDNA3.1-X was successfully constructed as a eukaryotic expression vector and immunized the female BALB/c mice aged 4 to 6 wk via intramuscular injection. Serum antibodies and immune-related cytokines were quantified using enzyme-linked immunosorbent assay(ELISA). The expression of the X protein in the ocular, trigeminal ganglion, and brain tissues of the mice was assessed.RESULTS: The target polyclonal antibody was identified with a serum antibody titer of 1:3200 in the rabbit serum after immunized by recombinant protein X. Upon immunizing mice with the eukaryotic recombinant plasmid pcDNA3.1-X, the concentration of HSV-1 serum IgM antibodies of the experimental group was 12.13±0.85 ng/L, which was significantly higher than that of the vector control group(0.49±0.44 ng/L; t=21.07, P<0.001). The concentrations of cytokines interleukin IL-2, IL-4, IL-10, and IFN-γ in the experimental group were 11.63±0.60, 22.65±1.47, 85.75±14.12, and 114.90±6.39 ng/L, respectively, all of which were significantly higher than those in the vector control group and the blank control group(all P<0.05). Immunohistochemical staining revealed the presence of target protein X in the eyeball, trigeminal ganglion, and brain tissue.CONCLUSION: The HSV-1 gB and gD tandem epitope nucleotides vaccine pcDNA3.1-X was successfully constructed, which activates a remarkable immune response and is stably expressed in the eyeball, trigeminal ganglion, and brain tissue. This study provides a foundation for further research of an HSV-1 recombinant antigen epitope tandem vaccine.

BACKGROUND:In recent years,deep learning technologies have been increasingly applied in the field of oral medicine,enhancing the efficiency and accuracy of oral imaging analysis and promoting the rapid development of intelligent oral medicine. OBJECTIVE:To elaborate the current research status,advantages,and limitations of deep learning based on oral imaging in the diagnosis and treatment decision-making of oral diseases,as well as future prospects,exploring new directions for the transformation of oral medicine under the backdrop of deep learning technology. METHODS:PubMed was searched for literature related to deep learning in oral medical imaging published from January 2017 to January 2024 with the search terms"deep learning,artificial intelligence,stomatology,oral medical imaging."According to the inclusion criteria,80 papers were finally included for review. RESULTS AND CONCLUSION:(1)Classic deep learning models include artificial neural networks,convolutional neural networks,recurrent neural networks,and generative adversarial networks.Scholars have used these models in competitive or cooperative forms to achieve more efficient interpretation of oral medical images.(2)In the field of oral medicine,the diagnosis of diseases and the formulation of treatment plans largely depend on the interpretation of medical imaging data.Deep learning technology,with its strong image processing capabilities,aids in the diagnosis of diseases such as dental caries,periapical periodontitis,vertical root fractures,periodontal disease,and jaw cysts,as well as preoperative assessments for procedures such as third molar extraction and cervical lymph node dissection,helping clinicians improve the accuracy and efficiency of decision-making.(3)Although deep learning is promising as an important auxiliary tool for the diagnosis and treatment of oral diseases,it still has certain limitations in model technology,safety ethics,and legal regulation.Future research should focus on demonstrating the scalability,robustness,and clinical practicality of deep learning,and finding the best way to integrate automated deep learning decision support systems into routine clinical workflows.

BackgroundNon-suicidal self-injury （NSSI） behavior among adolescents has become a global public health concern. Anxiety and depression are considered key factors influencing NSSI behavior， while social support may play a protective role in alleviating emotional and behavioral issues. However， existing research has primarily focused on the direct impact of individual factors on NSSI behavior， with insufficient exploration of the combined effects of anxiety， depression and social support. ObjectiveTo investigate the direct effect of anxiety on NSSI， the mediating role of depression and the moderating role of social support in relationship between anxiety and NSSI behavior， thus to provide references for the prevention and intervention of NSSI behavior among adolescents. MethodsIn February 2022， a total of 40 820 students in grades 7 to 12 across 10 middle schools in a district of Chengdu were selected as participants， and they were assessed using Generalized Anxiety Disorder Scale-7 item （GAD-7）， Patient's Health Questionnaire Depression Scale-9 item （PHQ-9）， Social Support Scale for Urban Students （SSSUS） and Adolescent Self-Harm Scale （ASHS）. Pearson correlation analysis was conducted to examine the correlations between scale scores among adolescents with NSSI behaviors. Mediation and moderation analyses were performed using Process 3.5 in SPSS， and the significance was tested with bootstrapping. The interaction was visualized by using simple slope analysis. ResultsAmong 34 534 （84.60%） valid respondents， 542 adolescents （1.57%） reported engaging in NSSI behavior. Significant differences in gender， GAD-7 scores， PHQ-9 scores， and SSSUS scores were observed between NSSI behavior group and non-NSSI group （χ²/t=62.889， 71.120， 94.365， -41.464， P<0.01）.Adolesents with NSSI showed positive correlations between GAD-7 scores and both ASHS and PHQ-9 scores （r=0.158， 0.166， P<0.01）. PHQ-9 scores were positively correlated with ASHS scores （r=0.364， P<0.01）， but negatively correlated with SSSUS scores （r=-0.290， P<0.01）. SSSUS scores were negatively correlated with ASHS scores （r=-0.247， P<0.01）. Depression partially mediated the relationship between anxiety and NSSI behavior， with an effect size of 0.544 （95% CI： 0.162~0.944）， accounting for 35.79% of the total effect. Social support moderated the relationship between depression and NSSI bahavior， with an effect value of -0.082 （95% CI： -0.135~-0.029）. ConclusionAnxiety not only directly influences NSSI bahavior among adolescents， also indirectly exacerbates it through depression， while social support mitigates the impact of depression on NSSI behavior. ［Funded by Youth Project of National Natural Science Foundation of China （number， 82401812）； Project of Health Commission of Sichuan Province （number， 24LCYJPT18）］

Objective: To describe the association of different sleep characteristics and cardiometabolic risk among college students, so as to provide reference for health promotion of college students. Methods: By random cluster sampling method, a questionnaire survey and physical examination including blood pressure, waist circumference and blood lipid indicators, which were conducted in April and May of 2019 among a total of 1 179 college students from the first grade in two universities in Hefei City of Anhui Province and Shangrao City of Jiangxi Province. A total of 729 college students with valid questionnaires were included into analysis. The Pittsburgh Sleep Quality Index (PSQI) and Insomnia Severity Index (ISI) were used to investigate sleep behavior, and the Morning And Evening Questionnaire-5 (MEQ-5) was used to investigate sleep characteristics. The cardiometabolic risk score was derived using the sum of the standardized sex specific Z scores of waist circumference, mean arterial pressure, HDL cholesterol (multiplied by -1), triglycerides, and insulin resistance index. The rank sum tests were used to compare differences in cardiometabolic risk scores across demographic characteristics. Generalized linear models were used to compare the association of different sleep characteristics with cardiometabolic risk scores among college students. Results: The average cardiovascular metabolic risk score of college students was -0.32(-2.03, 1.58). There were statistically significant differences in cardiovascular metabolic risk scores among college students in variables such as smoking, health status, and physical activity levels ( t/F=-3.41, 12.88, 51.07, P <0.01). The results of the generalized linear model showed that nighttime preference ( B=1.89, 95%CI =1.02-3.49), insomnia symptoms ( B=3.25, 95%CI =1.79-5.90), and short or long sleep duration ( B=1.92, 95%CI =1.21-3.05) were positively correlated with the cardiovascular metabolic risk score of college students ( P <0.05). Conclusions Poor sleep patterns among college students are positively correlated with the risk of cardiovascular metabolism. The sleep behavior of college students should be actively changed to reduce the risk of cardiovascular disease.

Objective:To explore the effects of activating α7 nicotinic acetylcholine receptor(α7nAChR)on cognitive function and polarization of hippocampal microglia in traumatic brain injury (TBI) rats.Methods:Totally 36 male SD rats with 6-8 weeks old were randomly divided into Sham group ( n=12), TBI group ( n=12), TBI+ α7nAChR agonist group ( n=6) and TBI+ α7nAChR antagonist group( n=6). The TBI model was established by the " free fall impact" method. From the 4th to 6th day after modeling, mice in the TBI+ α7nAChR agonist group were intraperitoneally injected with α7nAChR agonist PNU-282987 (3 mg/kg). Rats in TBI+ α7nAChR antagonist group were intraperitoneally injected with α7nAChR antagonist methyllycaconitine citrate (5 mg/kg) first, then 45 minutes later they were injected with α7nAChR agonist PNU-282987 (3 mg/kg). Rats in the TBI group and Sham group were intraperitoneally injected with an equal volume of 0.9% sodium chloride solution. Morris water maze test was used to evaluate the learning and memory function of rats. Immunofluorescence staining was used to observe the ionized calcium binding adapter molecule 1 (Iba-1)(a marker for microglia) and arginase 1 (Arg-1)(a marker for M2 microglia). Western blot was used to detect the protein level of Arg-1 in hippocampal tissue. Statistical analysis was performed using GraphPad Prism 9 software. Independent sample t test was used for comparison between two groups, one-way ANOVA was used for comparison among multiple groups, and Tukey test was used for multiple comparison. Results:The results of the water maze test showed that after 7 days of modeling, there was a statistical difference in the escape latency among the 4 groups of rats ( F=6.134, P<0.05). There was no statistical difference in the escape latency between the TBI group and the TBI+ α7nAChR antagonist group( P>0.05), but the both were higher than that of the Sham group (both P<0.05). The escape latency of the TBI+ α7nAChR agonist group((31.87±9.01)s) was shorter than that of the TBI group((56.75±2.62)s) and the TBI+ α7nAChR antagonist group((60.00±0.00)s) (both P<0.05). The results of immunofluorescence staining showed that there were statistical differences in the fluorescence intensity and cell numbers of Arg-1 + /Iba-1 + among the four groups ( F=17.37, 9.33, both P<0.05). The immune fluorescence intensity (0.27±0.03) and cell numbers (21.67±4.41) of Arg-1 + /Iba-1 + in the TBI+ α7nAChR agonist group were higher than those in the TBI group((0.14±0.03), (11.33±2.60)) and TBI+ α7nAChR antagonist group((0.10±0.03), (7.67±1.20)) (all P<0.05). The results of Western blot showed that there was a statistical difference in the level of Arg-1 protein in hippocampus among the 4 groups ( F=8.323, P=0.001). There was no significant difference in the level of Arg-1 protein between the TBI group and the TBI+ α7nAChR antagonist group( P>0.05), and the level of Arg-1 protein in the TBI+ α7nAChR agonist group(1.06±0.22) was higher than that in the TBI group(0.60±0.13) and TBI+ α7nAChR antagonist group(0.35±0.10) (both P<0.05). Conclusion:Activating α7nAChR can promote the polarization of M2 type microglia in rat hippocampal tissue and improve the learning and memory function of TBI rats.

Objective:To evaluate the effect of esketamine on learning and memory function after chronic stress and the signaling pathway of N-methyl-D-aspartate receptor (NMDAR)-calmodulin-dependent protein kinase type 2 (CaMKⅡ)-cAMP-responsive element-binding protein (CREB) in the hippocampus of developing rats.Methods:Sixty clean-grade healthy Sprague-Dawley rats of either sex, aged 7 days, weighing 10-15 g, were divided into 3 groups ( n=20 each) using a random number table method: control+ normal saline group (CN group), chronic stress+ normal saline group (NS group), and chronic stress+ esketamine group (ES group). A chronic stress model was established using a chronic unpredictable stress method. After the end of stress stimulation, esketamine 10 mg/kg was intraperitoneally injected once a day for 7 consecutive days in ES group, and the equal volume of normal saline was given instead in NS group. Y maze test and Morris water maze test were used to assess the learning and memory function after intraperitoneal administration. Venous blood samples were obtained to measure the serum cortisol and reactive oxygen species (ROS) concentrations by enzyme-linked immunosorbent assay. The animals were then sacrificed under anesthesia, the brain was removed and the hippocampal tissue was isolated for examination of the pathological changes in the hippocampal CA1 region and for determination of the ratios of phosphorylated NMDAR (p-NMDAR)/NMDAR, phosphorylated CaMKII (p-CaMKⅡ)/CaMKⅡ, and phosphorylated CREB (p-CREB)/CREB (by Western blot). Results:Compared with CN group, the time spent in the novel arm was significantly shortened, the number of entries into the novel arm was reduced, the escape latency was prolonged, the number of crossing the original platform was reduced, the serum cortisol and ROS concentrations were increased, the p-NMDAR/NMDAR ratio, p-CaMKⅡ/CaMKⅡ ratio and p-CREB/CREB ratio were decreased ( P<0.05), and the pathological changes of neurons were marked in NS group. Compared with NS group, the time spent in the novel arm was significantly prolonged, the number of entries into the novel arm was increased, the escape latency was shortened, the number of crossing the original platform was increased, the serum cortisol and ROS concentrations were decreased, the p-NMDAR/NMDAR ratio, p-CaMKⅡ/CaMKⅡ ratio and p-CREB/CREB ratio were increased ( P<0.05), and the pathological changes of neurons were significantly attenuated in ES group. Conclusions:Esketamine can improve the learning and memory function after chronic stress in developing rats, and the mechanism may be related to reduction of oxidative stress and enhancement of the activity of hippocampal NMDAR-CaMKII-CREB signaling pathway.

Objective To investigate the acute toxicology and intervention effect of Panacis Majoris Rhizoma on rats with chronic pharyngitis.Methods A single,maximum dose of Panacis Majoris Rhizoma(74.4 g·kg-1)was administered to Kunming mice to evaluate its toxicity,involving the assessment of the survival status of the mice,organ indices,morphological changes in major organs,blood routine,and biochemical indicators.SD rats were randomly divided into the control group,model group,prednisone group(6.25 mg·kg-1),and low-,medium-,and high-dose Panacis Majoris Rhizoma groups(0.58,1.16,and 2.32 g·kg-1).All rats received the corresponding drugs(or normal saline)via intragastric administration once daily for a duration of 30 days.Except the control group,chronic pharyngitis was induced in rats of the other groups by using β-hemolytic streptococcus.Following euthanasia,serum inflammatory levels of interleukin-6(IL-6),cyclooxygenase-2(COX-2),interleukin-1β(IL-1β),intercellular adhesion molecule-1(ICAM-1),C-reactive protein(CRP),tumor necrosis factor(TNF-α),monocyte chemoattractant protein-1(MCP-1),and prostaglandin E2(PGE2)were measured.Additionally,pharyngeal tissues were stained with HE and pathological characteristics were observed.Results Toxicological studies have demonstrated that the administration of Panacis Majoris Rhizoma resulted in significant increase in plasma alanine transaminase levels and spleen index of mice,along with corresponding tissue pathological alterations.Nevertheless,no noteworthy pathological changes were observed in other organs,and there were no notable changes in blood routine and plasma biochemical indicators.Pharmacodynamic investigations have revealed that Panacis Maioris Rhizoma effectively reduces the serum levels of inflammatory factors and improves pathological changes in pharyngeal tissues.Conclusion Panacis Maioris Rhizoma alleviated β-hemolytic streptococcus-induced CP by inhibiting inflammatory responses,and may show potential toxicity to the spleen.

ObjectiveThis study explores the efficacy and pharmacological mechanism of Wujiwan in rats with inflammatory bowel disease （IBD） from the perspectives of the peroxisome proliferator-activated receptor γ （PPARγ） signaling pathway and T-cell immunity， providing reference for the treatment of IBD with traditional Chinese medicine. MethodThe study involved administering 2，4，6-trinitrobenzenesulfonic acid （TNBS） enemas to 35 rats to induce acute IBD. After 24 hours， the animals were divided into the following groups： normal group， model group， Wujiwan treatment group， and positive drug control group. Each group received gastric gavage for 8 consecutive days before the rats were dissected to compare the disease activity index （DAI） of the rat colon tissue， the colon mucosal damage index （CMDI）， and the spleen index. Enzyme-linked immunosorbent assay （ELISA） was used to measure the levels of interleukin-1β （IL-1β）， interleukin-10 （IL-10）， and tumor necrosis factor-α （TNF-α） in the serum. Quantitative real-time polymerase chain reaction （Real-time PCR） was used to determine the mRNA expression levels of T-bet （T-box expressed in T cells） and Gata3 （Gata-binding protein-3） in the colon tissue. Western blot analysis was conducted to detect the protein expression levels of PPARγ， T-bet， and nuclear factor-κB p65 （NF-κB p65） in the rat colon. ResultThe rat model of IBD was successfully established. Compared with the model group， the Wujiwan treatment group showed reduced DAI， CMDI， and spleen index， decreased content of TNF-α in the serum（P<0.01）， significantly increased content of IL-10（P<0.01）， and elevated mRNA content of T-bet and Gata3（P<0.05） in the colon tissue. The expression of PPARγ protein was augmented（P<0.05）， and the expression of T-bet and NF-κB p65 protein was decreased（P<0.05，P<0.01）. ConclusionWujiwan activates or upregulates PPARγ expression in IBD rats to inhibit the generation of pro-inflammatory factors， participates in the inflammatory immune process， and alleviates inflammatory reactions. Its mechanism may involve regulating the NF-κB pathway through PPARγ， enhancing Th2 cell transcription expression， and reducing Th1 cell transcription.

Tiepishihu(Dendrobii officinalis Caulis)is a medicinal and food source herbal medicine with the effect of benefiting stomach and promoting fluid,nourishing Yin and clearing heat.It has rich chemical components and pharmacological activities,with anti-inflammatory,anti-bacterial,anti-oxidation,anti-tumor,immunomodulatory,blood press regulation,hypoglycemic effects.It is not only used as medicinal food and health care products,but also widely used in medicine,such as Shihu Yeguang Wan,Compound fresh dendrobium granules and other drugs,with high medicinal and economic value.This paper summarized the resource distribution,chemical composition,pharmacological activities,and medicine and food of Dendrobii officinalis Caulis,and analyzed its application status,laying a theoretical foundation for the sustainable development,medicinal and food homologous development and comprehensive utilization of Dendrobii officinalis Caulis.