The repair of the periodontal membrane is essential for the successful management of periodontal disease and dental trauma. Emdogain^® (EMD) is widely used in periodontal therapy due to its ability to promote repair. Despite substantial research, the cellular and molecular mechanisms underlying EMD's effects, particularly at the single-cell resolution, remain incompletely understood. This study established a delayed tooth replantation model in rats to investigate these aspects. Tooth loss rate and degree of loosening were evaluated at 4 and 8 weeks. Micro-CT, HE staining, TRAP staining, and immunofluorescence staining were evaluated to assess EMD's efficacy. Single-cell sequencing analyses generated single-cell maps that explored enrichment pathways, cell communication, and potential repair mechanisms. Findings indicated that EMD could reduce the rate of tooth loss, promote periodontal membrane repair, and reduce root and bone resorption. Single-cell analysis revealed that EMD promotes the importance of Vtn+ fibroblasts, enhancing matrix and tissue regeneration functions. Additionally, EMD stimulated osteogenic pathways, reduced osteoclastic activity, and promoted angiogenesis-related pathways, particularly bone-related H-type vessel expression in endothelial cells. Gene modules associated with angiogenesis, osteogenesis, and odontoblast differentiation were identified, suggesting EMD might facilitate osteogenesis and odontoblast differentiation by upregulating endothelium-related genes. Immune cell analysis indicated that EMD did not elicit a significant immune response. Cell communication analysis suggested that EMD fostered pro-regenerative networks driven by interactions between mesenchymal stem cells, fibroblasts, and endothelial cells. In conclusion, EMD proves to be an effective root surface therapy agent that supports the restoration of delayed replantation teeth.
Animals ; Tooth Replantation/methods* ; Rats ; Dental Enamel Proteins/pharmacology* ; Single-Cell Analysis ; Rats, Sprague-Dawley ; X-Ray Microtomography ; Osteogenesis/drug effects* ; Male ; Periodontal Ligament/drug effects*

OBJECTIVE To investigate the current status of water management for terminal rinsing of digestive en-doscope in medical institutions in Fujian Province,and to provide reference for improving regional quality control standards.METHODS An electronic questionnaire survey was conducted from Jul.2024 to Aug.2024 through convenient sampling in secondary and above hospitals of 9 prefecture-level cities in Fujian Province.The survey covered topics such as water treatment system configuration,maintenance and water quality monitoring.RESULTS A total of 108 questionnaires were distributed and 104 valid questionnaires were collected,with an effec-tive response rate of 96.30％.The survey revealed that 78.85％(82/104)of the hospitals adopted separate water supply for each department,and 82.69％used purified water for terminal rinsing.Only 19.23％installed the final filter membrane at the water outlet.In addition,66.35％of the hospitals did not specify the service life of the wa-ter supply pipeline,and the pipeline disinfection implementation rate was 60.58％,but 31.75％of them had ir-regular disinfection frequencies,with chlorine-based disinfectants(50.79％)and peracetic acid(34.92％)being the main disinfectants.The regular conductivity monitoring rate was 47.12％,and the microbial monitoring cov-erage rate reached 90.38％,with the monitoring frequency mainly being once every quarter(60.64％),but only 20.21％used R2A medium,and 12.77％adopted the membrane filtration method for inoculation.Tertiary hospi-tals were superior to secondary hospitals in terms of film membrane pore size pass rate(87.50％vs.56.86％),pipeline disinfection implementation rate(71.43％vs.50.91％)and advanced detection method application(P＜0.05).CONCLUSIONS There are issues in the management of water used for terminal rinsing of digestive endo-scopes in Fujian Province,including non-standard equipment maintenance,inconsistent monitoring methods and insufficient awareness among management personnel.It is recommended to enhance management quality by optimizing the water treatment system setup,establishing standardized monitoring procedures and strengthening professional training for personnel.

Objective To investigate the clinical characteristics and prognostic factors of Staphylococcus aureus bloodstream infections in adult patients for improving clinical treatment and identifying potential interventions.Methods Clinical data of inpatients diagnosed with S.aureus bloodstream infection confirmed by blood culture in a hospital from January 2016 to December 2023 were retrospectively reviewed.The data included patient age,gender,history of hospital admission,department of admission,underlying diseases,primary infection,quick Pitt bacteremia score(qPitt),invasive treatment,empirical anti-infective treatment,and treatment outcomes.Patients were assigned to case group or control group according to whether they died in hospital in order to identify the prognostic factors of patient outcomes.Binary logistic regression analysis was used to identify independent prognostic factors.Results A total of 233 cases of S.aureus bacteremia were identified.Multivariate logistic regression analysis showed that age ≥ 70 years old(OR=4.725,95％CI:1.228-18.173,P=0.024),diabetes mellitus(OR=8.161,95％CI:1.954-34.086,P=0.004),Charlson comorbidity index(CCI)≥ 5(OR=7.672,95％CI:1.901-30.963,P=0.004),hospital infection(OR=7.853,95％CI:1.588-38.832,P=0.012),and qPitt ≥ 2(OR=23.189,95％CI:4.461-120.552,P＜0.001)were independent prognostic factors for poor outcome of patients with S.aureus bacteremia,while catheter-associated infection(OR=0.051,95％CI:0.005-0.579,P=0.016)was negatively correlated with mortality.Conclusions Advanced age,diabetes mellitus,high CCI,hospital infection,and high qPitt were independent prognostic factors for poor outcomes of patients with S.aureus bacteremia.The patients should be well managed by timely removal of eradicable lesions to improve patient outcomes.

Objective To investigate the therapeutic effects of Jiaotai Pill(JTP)on type 2 diabetic(T2DM)rats,a systemic study was conducted by examining the changes in neurotransmitter levels related to the hypothalamic-pituitary-adrenal(HPA)axis.Methods The rats were divided into a normal group,a model group,a metformin group(183 mg·kg-1·d-1),and a JTP treatment group(3.3 g·kg-1·d-1).A T2DM model was established using a high-fat diet combined with streptozotocin.After 28 days of intragastric administration of JTP and metformin,metabolic indicators,Fasting blood glucose(FBG),insulin(INS),blood lipids,and pathological changes in the liver and kidneys were measured in each group of rats.Levels of eight neurotransmitters were quantified in serum,urine,and multiple tissues(brain,heart,liver,kidney,intestine,and adrenal gland)using ultra-high-performance liquid chromatography-tandem mass spectrometry.Results Compared to the T2DM model group,the JTP intervention groups showed varying degrees of reduction in water intake,food intake,FBG,INS,and blood lipids(P<0.05).Additionally,the fatty degeneration in the liver,glomerular lesions in the kidneys,and dyslipidemia were significantly improved.JTP intervention significantly modulated the disordered neurotransmitter levels in the blood,urine,and various tissues of T2DM rats(P<0.05),with the greatest number of neurotransmitters showing a notable recovery in blood,urine,brain,and adrenal gland.Conclusion JTP at a dosage of 3.3 g·kg-1·d-1 can improve the glucose and lipid metabolism in rats.JTP can regulate the HPA axis-related neurotransmitter system,mitigating metabolic disturbances and organ damage associated with T2DM.

Objective To investigate the clinical characteristics and prognostic factors of Staphylococcus aureus bloodstream infections in adult patients for improving clinical treatment and identifying potential interventions.Methods Clinical data of inpatients diagnosed with S.aureus bloodstream infection confirmed by blood culture in a hospital from January 2016 to December 2023 were retrospectively reviewed.The data included patient age,gender,history of hospital admission,department of admission,underlying diseases,primary infection,quick Pitt bacteremia score(qPitt),invasive treatment,empirical anti-infective treatment,and treatment outcomes.Patients were assigned to case group or control group according to whether they died in hospital in order to identify the prognostic factors of patient outcomes.Binary logistic regression analysis was used to identify independent prognostic factors.Results A total of 233 cases of S.aureus bacteremia were identified.Multivariate logistic regression analysis showed that age ≥ 70 years old(OR=4.725,95％CI:1.228-18.173,P=0.024),diabetes mellitus(OR=8.161,95％CI:1.954-34.086,P=0.004),Charlson comorbidity index(CCI)≥ 5(OR=7.672,95％CI:1.901-30.963,P=0.004),hospital infection(OR=7.853,95％CI:1.588-38.832,P=0.012),and qPitt ≥ 2(OR=23.189,95％CI:4.461-120.552,P＜0.001)were independent prognostic factors for poor outcome of patients with S.aureus bacteremia,while catheter-associated infection(OR=0.051,95％CI:0.005-0.579,P=0.016)was negatively correlated with mortality.Conclusions Advanced age,diabetes mellitus,high CCI,hospital infection,and high qPitt were independent prognostic factors for poor outcomes of patients with S.aureus bacteremia.The patients should be well managed by timely removal of eradicable lesions to improve patient outcomes.

OBJECTIVE To investigate the current status of water management for terminal rinsing of digestive en-doscope in medical institutions in Fujian Province,and to provide reference for improving regional quality control standards.METHODS An electronic questionnaire survey was conducted from Jul.2024 to Aug.2024 through convenient sampling in secondary and above hospitals of 9 prefecture-level cities in Fujian Province.The survey covered topics such as water treatment system configuration,maintenance and water quality monitoring.RESULTS A total of 108 questionnaires were distributed and 104 valid questionnaires were collected,with an effec-tive response rate of 96.30％.The survey revealed that 78.85％(82/104)of the hospitals adopted separate water supply for each department,and 82.69％used purified water for terminal rinsing.Only 19.23％installed the final filter membrane at the water outlet.In addition,66.35％of the hospitals did not specify the service life of the wa-ter supply pipeline,and the pipeline disinfection implementation rate was 60.58％,but 31.75％of them had ir-regular disinfection frequencies,with chlorine-based disinfectants(50.79％)and peracetic acid(34.92％)being the main disinfectants.The regular conductivity monitoring rate was 47.12％,and the microbial monitoring cov-erage rate reached 90.38％,with the monitoring frequency mainly being once every quarter(60.64％),but only 20.21％used R2A medium,and 12.77％adopted the membrane filtration method for inoculation.Tertiary hospi-tals were superior to secondary hospitals in terms of film membrane pore size pass rate(87.50％vs.56.86％),pipeline disinfection implementation rate(71.43％vs.50.91％)and advanced detection method application(P＜0.05).CONCLUSIONS There are issues in the management of water used for terminal rinsing of digestive endo-scopes in Fujian Province,including non-standard equipment maintenance,inconsistent monitoring methods and insufficient awareness among management personnel.It is recommended to enhance management quality by optimizing the water treatment system setup,establishing standardized monitoring procedures and strengthening professional training for personnel.

Objective To investigate the therapeutic effects of Jiaotai Pill(JTP)on type 2 diabetic(T2DM)rats,a systemic study was conducted by examining the changes in neurotransmitter levels related to the hypothalamic-pituitary-adrenal(HPA)axis.Methods The rats were divided into a normal group,a model group,a metformin group(183 mg·kg-1·d-1),and a JTP treatment group(3.3 g·kg-1·d-1).A T2DM model was established using a high-fat diet combined with streptozotocin.After 28 days of intragastric administration of JTP and metformin,metabolic indicators,Fasting blood glucose(FBG),insulin(INS),blood lipids,and pathological changes in the liver and kidneys were measured in each group of rats.Levels of eight neurotransmitters were quantified in serum,urine,and multiple tissues(brain,heart,liver,kidney,intestine,and adrenal gland)using ultra-high-performance liquid chromatography-tandem mass spectrometry.Results Compared to the T2DM model group,the JTP intervention groups showed varying degrees of reduction in water intake,food intake,FBG,INS,and blood lipids(P<0.05).Additionally,the fatty degeneration in the liver,glomerular lesions in the kidneys,and dyslipidemia were significantly improved.JTP intervention significantly modulated the disordered neurotransmitter levels in the blood,urine,and various tissues of T2DM rats(P<0.05),with the greatest number of neurotransmitters showing a notable recovery in blood,urine,brain,and adrenal gland.Conclusion JTP at a dosage of 3.3 g·kg-1·d-1 can improve the glucose and lipid metabolism in rats.JTP can regulate the HPA axis-related neurotransmitter system,mitigating metabolic disturbances and organ damage associated with T2DM.

Near-surface ozone is a profoundly reactive and highly oxidizing gas and one of the critical respiratory toxicants. Numerous epidemiological investigations have indicated that asthmatic individuals are the vulnerable group of ozone exposure， and there is a strong correlation between ozone exposure and asthma morbidity and mortality rates. The potential mechanisms include oxidative stress， inflammatory response， autonomic nerve impairment， and immune dysfunction. The present study summarized and discussed the effect of ozone exposure on asthma and its underlying biological mechanisms in order to galvanize public cognizance concerning the perils of ozone pollution and serve as a reference for future research on ozone exposure and asthma.

Temporomandibular joint (TMJ) diseases are common clinical conditions. The number of patients with TMJ diseases is large, and the etiology, epidemiology, disease spectrum, and treatment of the disease remain controversial and unknown. To understand and master the current situation of the occurrence, development and prevention of TMJ diseases, as well as to identify the patterns in etiology, incidence, drug sensitivity, and prognosis is crucial for alleviating patients′suffering.This will facilitate in-depth medical research, effective disease prevention measures, and the formulation of corresponding health policies. Cohort construction and research has an irreplaceable role in precise disease prevention and significant improvement in diagnosis and treatment levels. Large-scale cohort studies are needed to explore the relationship between potential risk factors and outcomes of TMJ diseases, and to observe disease prognoses through long-term follw-ups. The consensus aims to establish a standard conceptual frame work for a cohort study on patients with TMJ disease while providing ideas for cohort data standards to this condition. TMJ disease cohort data consists of both common data standards applicable to all specific disease cohorts as well as disease-specific data standards. Common data were available for each specific disease cohort. By integrating different cohort research resources, standard problems or study variables can be unified. Long-term follow-up can be performed using consistent definitions and criteria across different projects for better core data collection. It is hoped that this consensus will be facilitate the development cohort studies of TMJ diseases.

Objective:To explore the application of an automatic slide-dropping instrument in bone marrow chromosomal karyotyping.Methods:The effects of manual and automatic dropping methods under different environmental humidity were retrospectively analyzed, and the repeatability of the automatic dropping method was analyzed.Results:No statistical difference was found between the results of automatic and manual dropping methods under the optimum ambient humidity and high humidity ( P>0.05). At low humidity, there was a statistical difference between the two methods ( P<0.05). With regard to the repeatability, the coefficient of variations of the automatic dropping method for the number of split phases, the rate of good dispersion and the rate of overlap were all lower than those of the manual dropping method. A statistical difference was also found in the number of split phases ( P<0.05) but not in the discrete excellent rate and overlapping rate between the two methods ( P>0.05). Conclusion:Better effect can be obtained by the automatic dropping instrument. It is suggested to gradually replace manual work with machine.