Dry eye disease(DED)is a common ocular surface disorder worldwide, primarily characterized by a loss of homeostasis of the tear film, and frequently associated with meibomian gland dysfunction(MGD), decreased tear film stability, ocular discomfort, and visual impairment. In recent years, factors such as the widespread use of digital devices,the aging population, and environmental changes have contributed to a significant increase in its global prevalence, making it a major public health concern. Red light therapy(RLT), also known as low-level laser therapy(LLLT)or photobiomodulation(PBM), is a non-invasive treatment that utilizes low-energy red or near-infrared light to irradiate tissues. It exerts photobiomodulatory effects to promote cellular repair and functional recovery. This therapy has demonstrated considerable potential in treating various ocular conditions. Its broader clinical application could improve therapeutic outcomes, alleviate patient discomfort and financial burden, and reduce the consumption of healthcare resources, thereby yielding significant socio-economic benefits. This paper systematically reviews the multifaceted mechanisms and application prospects of RLT in managing DED, including its anti-inflammatory effects, improvement of meibomian gland function, promotion of conjunctival goblet cell repair, and alleviation of visual fatigue, aiming to provide a theoretical foundation and practical reference for its clinical adoption.

Objective To analyze the emergency testing results of a mixed poisoning incident involving methyl acetate and dimethyl carbonate in a composite fabric processing enterprise. Methods A mixed poisoning incident involving methyl acetate and dimethyl carbonate occurred at a composite fabric processing enterprise in a city of Guangdong Province. On-site occupational health investigation data and laboratory testing results related to this incident were collected, and an integrated analysis was conducted. Results The on-site occupational health investigation revealed inadequate ventilation and non-standard use of personal protective equipment. Volatile organic component analysis of raw and auxiliary materials showed that methyl acetate and dimethyl carbonate had relatively high percentages of peak area among all used volatile organic chemical agents in post-incident emergency testing, accounting for 65.10% and 38.25%, respectively. The exposure concentration of short term (C_STE) of methyl acetate in the production line air was 15.13 mg/m³. In the chemical storage area, C_STE of methyl acetate and methanol were 451.04 and <0.21 mg/m³, respectively, all below their respective occupational exposure limits (500.00 and 50.00 mg/m³). In the poisoned workers, blood methanol, blood formic acid, and urinary formic acid levels were 147, 414, and 4 389 mg/L, respectively. Conclusion Occupational exposure to methyl acetate and dimethyl carbonate may lead to acute occupational poisoning and cause health damage. Employers should fulfill their responsibilities for occupational disease prevention by ensuring proper operation of protective facilities, while workers should enhance awareness of occupational disease prevention and correctly use personal protective equipment.

With the rapid development of generative artificial intelligence(GAI)technologies,their widespread application in academic research and writing is continuously expanding the boundaries of sci-entific inquiry.However,this trend has also raised a series of ethical and regulatory challenges,inclu-ding issues related to authorship,content authenticity,citation accuracy,and accountability.In light of the growing involvement of AI in generating academic content,establishing an open,controllable,and trustworthy ethical governance framework has become a key task for safeguarding research integrity and maintaining trust within the academic community.This expert consensus outlines ethical requirements across key stages of AI-assisted academic writing-including topic selection,data management,citation practices,and authorship attribution.It aims to clarify the boundaries and ethical obligations surrounding AI use in academic writing,ensuring that technological tools enhance efficiency without compromising in-tegrity.The goal is to provide guidance and institutional support for building a responsible and sustainable research ecosystem.

Objective:To investigate the effects of dexmedetomidine(DEX)on T cell subsets in rats with rheumatoid arthritis(RA)by regulating interleukin-10(IL-10)/signal transduction factor and transcriptional activator 3(STAT3)signaling pathways.Methods:SD rats were grouped into control group(NC group),Model group,DEX low-dose group(DEX-L group,5 μg/kg),DEX medium-dose group(DEX-M group,10 μg/kg),DEX high-dose group(DEX-H group,20 μg/kg),methotrexate group(MTX group,0.33 mg/kg),AS101 group(IL-10 inhibitor,1.5 mg/kg)and DEX-H+AS101 group(20 μg/kg+1.5 mg/kg),with 18 rats in each group.Except NC group,RA models were established in rats of other groups.The administration was started 24 hours after the second immunization,once a day for 3 weeks.The changes of foot swelling rate and joint index were measured;HE staining was applied to detect the pathological changes of spleen tissue;the levels of TNF-α and IL-1β in rat spleen were detected by ELISA;the percentages of CD3+CD4+T cells,CD3+CD8+T cells and the proportions of helper T cell 17(Th17)and regulatory T cell(Treg)in rat spleen were measured by flow cytometry;and Western blot was applied to detect the expressions of IL-10 and p-STAT3 protein in rat spleen.Results:Compared with NC group,the pathological damage of spleen tissue in Model group was serious,the feet swelling rate,joint index,the levels of TNF-α and IL-1β,the percentage of CD3+CD4+T cells,Th17 cells,Th17/Treg were increased,the percentage of CD3+CD8+T cells,Treg,and expression of IL-10 and p-STAT3 protein were decreased(P<0.05);compared with Model group,the pathological damage of spleen tissue in DEX-L group,DEX-M group,DEX-H group and MTX group were reduced,the feet swelling rate,joint index,the levels of TNF-α and IL-1β,the percentage of CD3+CD4+T cells,Th17 cells,Th17/Treg decreased,the percent-age of CD3+CD8+T cells,Treg,and expressions of IL-10 and p-STAT3 protein were increased(P<0.05);compared with Model group,the pathological damage of spleen tissue in AS101 group was aggravated,the feet swelling rate,joint index,the levels of TNF-α and IL-1β,the percentage of CD3+CD4+Tcells,Th17 cells,Th17/Treg were increased,the percentage of CD3+CD8+T cells,Treg cells,and expression of IL-10 and p-STAT3 protein were decreased(P<0.05);AS101 attenuated the promoting effect of high dose DEX on the proportion balance of T cell subsets in RA rats.Conclusion:DEX may promote the balance of T cell subsets in RA rats by activating IL-10/STAT3 pathway.

AIM To establish a UPLC-ESI-MS/MS method for analyzing the toxic material basis of 95％ethanol cold soaked ultrasonic extract(EC),95％ethanol heated reflux extract(EH)and water decoction extract(WD)from Dryopteris crassirhizoma Nakai.METHODS The analysis was performed on a 25 ℃ thermostatic agilent ZORBAX RRHD StableBond C18 column(2.1 mm×150 mm,1.8 μm),with the mobile phase comprising of methanol-0.2％formic acid flowing at 0.30 mL/min,and heated electrospray ion source was adopted in positive and negative ion scanning.Compounds were identified by Compound Discover 3.3 software combined with the database and related literature,and the main differential components were screened by Heatmap cluster analysis and partial least squares discriminant analysis.RESULTS 72 compounds were identified(22 phloroglucinols,19 flavonoids,8 phenylpropanoids,6 terpenoids and 17 other components).The main toxic differential components were phloroglucinols such as flavaspidic acid AB,didemethylpseudoaspidin AA and filixic acid PBP,flavonoids such as(-)-epicatechin,(-)-epigallocatechin,cianidanol,and other compounds such as indole-3-carboxaldehyde.CONCLUSION This method can rapidly,effectively and comprehensively characterize the main chemical composition of D.crassirhizoma,and provide a reference for the study of its pharmacological mechanism.

Objective:To investigate the risk factors influencing mortality in neonates undergoing continuous renal replacement therapy (CRRT).Methods:This retrospective study included 34 neonates with a corrected age of≤28 days who received CRRT at the Affiliated Children's Hospital of Xiangya School of Medicine, Central South University, from January 2019 to December 2023. The neonates were divided into a mortality group ( n=16) and a survival group ( n=18) based on whether they died during CRRT. Pre-CRRT blood biochemical indices, general condition, CRRT treatment modes, parameters, and related complications were analyzed using t-tests, Wilcoxon signed-rank tests, and Chi-square tests. Logistic stepwise regression analysis was used to screen for risk factors associated with CRRT mortality. Results:The mortality rate among the 34 neonates was 48.6% (16/34), with a median CRRT age of 17 days (range: 2-33 days). Eleven neonates (32.3%) were preterm, with the youngest gestational age being 27 weeks and the lowest weight before CRRT initiation being 1 700 g. The mortality group had lower urine output 6-12 hours before CRRT initiation and lower critical illness scores compared to the survival group [0.05 (0.02-1.00) ml/(kg·h) vs. 0.50 (0.20-1.05) ml/(kg·h), (64.50±7.10) scores vs. (77.67±3.65) scores, Z or t values were 10.97 and 3.91, respectively]. However, the vasoactive inotropic score (VIS), proportion of coma, and levels of blood potassium, alanine aminotransferase, aspartate aminotransferase, blood ammonia, blood lactic acid, and activated partial thromboplastin time (APTT) were higher in the mortality group compared to the survival group [ (86.88±15.80) scores vs. (55.56±24.31) scores, 11/16 vs. 1/18, (7.02±1.73) mmol/L vs. (5.88±1.53) mmol/L, 274.55(132.50-664.98) U/L vs. 31.10(19.03-110.70) U/L, 688.20 (449.73-3 618.13) U/L vs. 96.65 (44.15-439.00) U/L, 232.75 (70.33-1 310.85) μmol/L vs.77.70 (49.78-919.05) μmol/L, (11.17±3.36) U/L vs. (7.99±2.67) U/L, and (99.57±39.74) s vs. (60.97±31.25) s, with t, χ2, or Z values of－4.39, 14.81,－2.03,－2.72,－11.81,－3.89,－3.06, and－3.17, respectively] (all P<0.05). Logistic regression analysis revealed that pre-treatment VIS value ( OR=1.150, 95% CI: 1.035-1.278), and blood ammonia level ( OR=1.004, 95% CI: 1.002-1.009) were independent risk factors for mortality (both P<0.05). Conclusions:Neonatal CRRT mortality is associated with pre-treatment VIS scores and blood ammonia levels. Attention should be paid to a rapid decreases in urine output, the intensity of vasopressor support, and elevated levels of blood ammonia, blood lactic acid, transaminases, and APTT at the initiation of treatment.

Medical therapy and surgical intervention are the two primary approaches for treating myocardial bridge.However,there remains controversy regarding the use of coronary artery bypass grafting(CABG)and myocardial bridge unroofing.Here,we report a case of myocardial infarction following CABG in a patient with a myocardial bridge.The patient was admitted to Lanzhou First Peopie's Hospital with persistent chest pain,chest tightness,and shortness of breath lasting 2 hours.Physical examination revealed no significant abnormalities.Electrocardiography(ECG)indicated extensive anterior wall myocardial infarction.Laboratory findings showed myoglobin levels of 140.1 ng/ml and troponin Ⅰ levels of 2.59 ng/ml,with no other significant abnormalities.The initial diagnosis was acute extensive anterior wall myocardial infarction.Emergency coronary angiography revealed a myocardial bridge in the mid-segment of the left anterior descending artery(LAD).Emergency CABG using the left internal mammary artery to the LAD was performed,leading to symptomatic improvement,and the patient was discharged in stable condition.However,the patient experienced a recurrent myocardial infarction seven years post-surgery and received secondary preventive medical therapy.The patient is currently under ongoing follow-up care.CABG is an effective treatment for myocardial bridge.However,based on the case reported in this study,we recommend careful evaluation of whether a patient may benefit from CABG.

The epidemiological and spatiotemporal clustering characteristics of dengue fever in Fujian Province were ana-lyzed,to provide a scientific basis for dengue fever prevention and control.Descriptive epidemiology,spatial autocorrelation a-nalysis,and spatiotemporal scanning were used to analyze dengue fever cases in Fujian Province from 2011 to 2023.In this peri-od,a total of 3 586 cases of dengue fever were reported in Fujian Province,including 2 360 local cases,1 134 imported cases from abroad,and 92 imported cases from China.Cases were reported in ten prefectures and cities of the province,and 81 out of 88 counties reported cases.Imported cases were reported throughout the year in Fujian Province,but the occurrence of local ca-ses showed clear seasonality.Local cases and domestic imports were concentrated in August to October,whereas overseas im-ports occurred primarily from June to October.The imported cases were mainly from Southeast Asian countries,but a trend of spreading from Southeast Asian countries to South Asia,Africa,the Americas,and other regions,was observed.Spatio-tem-poral clustering of dengue fever was found in Fujian Province(Moran's I value 0.14-0.66,P＜0.05),and the high-high ag-gregation areas were distributed primarily in Fuzhou,Quanzhou,and Putian.Spatio-temporal scanning detected three aggrega-tion areas:one main and two secondary.The aggregation time was from the end of July to October,and the distribution was primarily in Fuzhou,Quanzhou,Putian,Zhangzhou,and Xiamen.The distribution of dengue fever in Fujian Province showed clear spatial and temporal clustering from the end of July to October,and the distribution was primarily in Fuzhou,Quanzhou,Putian,Zhangzhou,and Xiamen.For high concentration areas,national health campaigns,mosquito prevention and control,epidemic surveillance,medical personnel training,and other relevant measures could be carried out in advance before local cases appear every year.Reduce local transmission of dengue fever due to importation.

Objective:To investigate the effects of dexmedetomidine(DEX)on T cell subsets in rats with rheumatoid arthritis(RA)by regulating interleukin-10(IL-10)/signal transduction factor and transcriptional activator 3(STAT3)signaling pathways.Methods:SD rats were grouped into control group(NC group),Model group,DEX low-dose group(DEX-L group,5 μg/kg),DEX medium-dose group(DEX-M group,10 μg/kg),DEX high-dose group(DEX-H group,20 μg/kg),methotrexate group(MTX group,0.33 mg/kg),AS101 group(IL-10 inhibitor,1.5 mg/kg)and DEX-H+AS101 group(20 μg/kg+1.5 mg/kg),with 18 rats in each group.Except NC group,RA models were established in rats of other groups.The administration was started 24 hours after the second immunization,once a day for 3 weeks.The changes of foot swelling rate and joint index were measured;HE staining was applied to detect the pathological changes of spleen tissue;the levels of TNF-α and IL-1β in rat spleen were detected by ELISA;the percentages of CD3+CD4+T cells,CD3+CD8+T cells and the proportions of helper T cell 17(Th17)and regulatory T cell(Treg)in rat spleen were measured by flow cytometry;and Western blot was applied to detect the expressions of IL-10 and p-STAT3 protein in rat spleen.Results:Compared with NC group,the pathological damage of spleen tissue in Model group was serious,the feet swelling rate,joint index,the levels of TNF-α and IL-1β,the percentage of CD3+CD4+T cells,Th17 cells,Th17/Treg were increased,the percentage of CD3+CD8+T cells,Treg,and expression of IL-10 and p-STAT3 protein were decreased(P<0.05);compared with Model group,the pathological damage of spleen tissue in DEX-L group,DEX-M group,DEX-H group and MTX group were reduced,the feet swelling rate,joint index,the levels of TNF-α and IL-1β,the percentage of CD3+CD4+T cells,Th17 cells,Th17/Treg decreased,the percent-age of CD3+CD8+T cells,Treg,and expressions of IL-10 and p-STAT3 protein were increased(P<0.05);compared with Model group,the pathological damage of spleen tissue in AS101 group was aggravated,the feet swelling rate,joint index,the levels of TNF-α and IL-1β,the percentage of CD3+CD4+Tcells,Th17 cells,Th17/Treg were increased,the percentage of CD3+CD8+T cells,Treg cells,and expression of IL-10 and p-STAT3 protein were decreased(P<0.05);AS101 attenuated the promoting effect of high dose DEX on the proportion balance of T cell subsets in RA rats.Conclusion:DEX may promote the balance of T cell subsets in RA rats by activating IL-10/STAT3 pathway.

Diabetic nephropathy(DN)is a serious complication of diabetes mellitus and a leading cause of end-stage renal diseases.In DN patients,key pathological mechanisms include proteinuria,glomerulo-sclerosis,and fibrosis,largely driven by poor glycemic control and oxidative stress caused by prolonged hyperglycemia.This stress damages renal podocytes and triggers inflammatory mesenchymal infiltration of renal tubular cells,exacerbating the progression of proteinuria and fibrosis.Human umbilical cord-de-rived mesenchymal stem cells(hUC-MSCs)offer promising potential for treating DN due to their strong anti-oxidative properties.In this study,we developed a DN mouse model and treated the mouse via tail vein injections of hUC-MSCs(1×106 cells/mouse).The results indicated that hUC-MSCs significantly lowered fasting blood glucose levels(22.5±3.0 vs 14.7±1.1,P＜0.01)and improved glucose toler-ance,as shown by intraperitoneal glucose tolerance test(IPGTT)results(P＜0.05).Additionally,the renal function improved in hUC-MSCs-treated mice,with marked reductions in oxidative stress markers,including blood urea nitrogen(BUN),urinary creatinine(Ucr),urinary protein(PRO),superoxide dismutase(SOD),and malondialdehyde(MDA)(P＜0.05).Histological analyses through hematoxy-lin-eosin(H&E),Periodic Acid-Schiff(PAS),and Sirius red staining demonstrated alleviation of glo-merular mesangial hyperplasia,glomerular hypertrophy,and tubular inflammation.Furthermore,hUC-MSCs treatment downregulated the expression of oxidative stress-related proteins,such as NADPH oxi-dase 4(NOX4)and thioredoxin-interacting protein(TXNIP),and reduced reactive oxygen species(ROS)production(P＜0.05).Meanwhile,human renal cortical proximal tubule epithelial cells(HK-2 cells)were selected for validation in vitro experiments using high glucose treatment followed by super-natants of hUC-MSCs(MSC-CM),and Western blotting showed that the expression of both NOX4 and TXNIP was inhibited(P＜0.05)and ROS expression was reduced.In conclusion,hUC-MSC treatment effectively lowered blood glucose levels and improved renal function in DN mice,likely through the sup-pression of NOX4 expression and TXNIP-mediated oxidative stress.