Objective: To investigate the relationship between physical development indicators and the onset and progression of myopia among children and adolescents, so as to provide theoretical support for coordinated vision and physical health management. Methods: A prospective cohort study was conducted. In September 2022, 3 102 students from grade one in primary school to grade three in junior high school (five year primary school and four year junior high school) from six schools in Huantai County, Shandong Province, were selected using multistage cluster random sampling method to participate in an epidemiological survey on myopia, with follow up completed in September 2023. Follow up value minus baseline value( d ) was used to assess changes in physical development and vision indicators. Multivariate Logistic regression analysis was used to examine the relationship between physical development indicators and the incidence of myopia. Generalized linear models were established to analyze the relationship between physical development indicators and changes in d spherical equivalent (SE) and d axial length (AL) . Results: Multivariate Logistic regression analysis showed that, after adjusting for factors such as gender, age, and baseline body mass index, the third ( Q 3)and fourth ( Q 4)quartiles of d height showed increased risks of myopia onset within one year compared to the first quartile( Q 1) ( OR =1.85,95% CI =1.18-2.88; OR =1.74,95% CI =1.09-2.78,both P ＜0.05). Results from the generalized linear model indicated that, after adjusting for confounding factors such as gender, age, and baseline SE, d SE was negatively correlated with d height and d weight in children and adolescents ( β =-0.024, 95% CI =-0.031 to -0.018; β =-0.006, 95% CI =-0.011 to -0.001), d AL was positively correlated with d height and d weight in children and adolescents ( β =0.011, 95% CI =0.008-0.013; β =0.005, 95% CI =0.003-0.007) (all P ＜0.05). Conclusions Physical development indicators in children and adolescents were associated with the onset and progression of myopia. Dynamic monitoring and early intervention of myopia should be strengthened for children and adolescents with rapid height and weight gain to achieve coordinated management of myopia and physical development.

ObjectiveTo evaluate pharmacological effects of Shengmai injection（SMI）on cerebral ischemia and study its neuroprotective mechanism. MethodsMale specific pathogen-free （SPF） Sprague-Dawley （SD） rats were randomly divided into a sham group， a model group， a low-dose SMI group（3 mL·kg^-1）， a middle-dose SMI group（6 mL·kg^-1）， a high-dose SMI group（12 mL·kg^-1）， and a Ginaton group（4 mL·kg^-1）according to the random number table method， with 12 rats in each group. The rat model of cerebral ischemia-reperfusion（MCAO/R）was prepared via the suture method. The administration groups were intraperitoneally injected with corresponding concentrations of SMI or Ginaton injection after reperfusion， which was conducted for 3 consecutive days. The sham group and model group were administered the equivalent volume of physiological saline. The pharmacological effects of SMI on brain injury in MCAO/R rats were evaluated by neurological function scores， cerebral infarction area， hematoxylin-eosin （HE） staining， Nissl staining， terminal deoxynucleotidyl transferase dUTP nick-end labeling （TUNEL） staining， and Western blot. The dominant link and key protein of SMI treating cerebral injury were explored using proteomic analysis. The related mechanisms of SMI were further validated using enzyme-linked immunosorbent assay （ELISA）， Western blot， and chloride ion fluorescence probe with oxygen-glucose deprivation/reoxygenation（OGD/R）-treated PC12 cells and MCAO/R rats. ResultsCompared with the sham group， the model group showed significantly increased neurological function scores， cerebral infarction area， neuronal apoptosis rate， and expression levels of apoptosis related proteins （P<0.05， P<0.01）and significantly decreased density of Nissl bodies and neurons（P<0.01）. Compared with the model group， the SMI groups exhibited significantly decreased neurological function scores， cerebral infarction area， neuronal apoptosis rate， and expression levels of apoptosis related proteins （P<0.05， P<0.01）and significantly increased density of Nissl bodies and neurons （P<0.05）. The proteomic analysis results showed that oxidative stress and inflammatory response were important processes of SMI intervening in MCAO/R injury， and the chloride intracellular channel protein 1 （CLIC1） was one of key proteins in its action network. The levels of representative indicators of oxidative stress and inflammatory response in the MCAO/R rats of the SMI groups were significantly reduced， compared with those in the model group（P<0.05， P<0.01）， and the expression levels of CLIC1 and downstream NOD-like receptor protein 3 （NLRP3） decreased （P<0.01）. In addition， the experimental results based on the OGD/R PC12 cells showed that SMI significantly increased the cell survival rate（P<0.01） and significantly decreased the intracellular chloride ion concentration（P<0.05）. ConclusionSMI has neuroprotective effects. Oxidative stress and inflammatory response are key processes of SMI intervening in MCAO/R injury. The potential mechanism is closely related to the regulation of CLIC1.

ObjectiveTo investigate the effects and potential mechanisms of Tongmai Yangxin Pills （通脉养心丸） （TYPs） in preventing ischemia-reperfusion （I/R）-induced arrhythmia. MethodsSixty male SD rats were randomly assigned to sham operation group， model group， amiodarone group， low-dose and high-dose TYPs group， with 12 rats in each group. The sham operation group and the model group received 10 g/（kg·d） normal saline by gavage， the amiodarone group received 60 mg/（kg·d） amiodarone， and the low-dose and high-dose TMP groups received 1 g/（kg·d） and 2 g/（kg·d） TYPs solution respectively， for 21 days， administered twice daily. On the day after the last administration， the I/R model was established in the model and medication groups by ligation of the left anterior descending coronary artery with a cannula， while the sham operation group underwent the same procedure without ligation. Electrocardiogram recordings were continuously monitored throughout the modeling process. Heart rate was recorded at five time points， before ischemia （t-0）， 5-10 min after ischemia （t-1）， 10-15 min after ischemia （t-2）， 15-30 min after ischemia （t-3）， and during the first 2 min of reperfusion （t-4）； the incidence of arrhythmia including ventricular premature beats （VPB）， ventricular tachycardia （VT）， and ventricular fibrillation （VF） was recorded； arrhythmia scores were calculated. After 24 hours of reperfusion， left ventricular myocardial tissue was collected. Hematoxylin-eosin （HE） staining was performed to observe pathological changes. RT-PCR was used to detect the mRNA expression of microRNA-1 （miRNA-1）， microRNA-133a （miRNA-133a）， and potassium （K⁺） and calcium （Ca²⁺） ion channel-related genes including KCND2， KCNH2， KCNE2， KCNQ1， KCNE1， KCNJ2， CACNA1C， and CACNB1. Western blot analysis was used to measure protein levels of transient outward potassium current protein （Kv4.2）， rapidly activating delayed rectifier potassium current protein （HERG）， slowly activating delayed rectifier potassium current protein （KvLQT1）， inward rectifier potassium current protein （Kir2.1）， and L-type calcium channel protein （Cav1.2）. ResultsCompared with sham operation group， the model group showed diffuse myocardial hemorrhage， inflammatory cell infiltration， myocardial necrosis， nuclear pyknosis， vacuolar degeneration， and disrupted myocardial fibers； the model group also exhibited a decreased heart rate （t-1 to t-4）， increased arrhythmia scores， elevated miRNA-1 and miRNA-133a expression， and decreased mRNA expression of KCND2， KCNH2， KCNE2， KCNQ1， KCNE1， KCNJ2， CACNA1C， and CACNB1 in myocardial tissue； additionally， Kv4.2， HERG， KvLQT1， Kir2.1， and Cav1.2 protein levels significantly reduced （P＜0.01）. Compared to the model group， all medication-treated groups showed reduced myocardial damage， including less hemorrhage， reduced inflammatory infiltration， and improved myocardial structure， with the high-dose TYPs group exhibiting the most significant improvement； the amiodarone group and high-dose TYPs group showed a significant increase in heart rate （t-1 to t-4）， lower arrhythmia scores， reduced miRNA-1 and miRNA-133a expression； the high-dose TYPs group exhibited significantly increased mRNA expression levels of KCND2， KCNH2， KCNQ1， KCNJ2， and CACNA1C， as well as elevated protein levels of Kv4.2， HERG， KvLQT1， Kir2.1， and Cav1.2 （P＜0.05 or P＜0.01）. ConclusionTMPs can improve myocardial damage and reduce the incidence of ventricular arrhythmia in I/R rats. The underlying mechanism may be related to the downregulation of miRNA-1 and miRNA-133a gene expression， as well as the upregulation of K⁺ and Ca²⁺ channel-related genes and proteins.

This paper systematically summarizes the practical experience of the 2025 Dingri earthquake emergency medical rescue in Tibet. It analyzes the requirements for earthquake medical rescue under conditions of high-altitude hypoxia, low temperature, and low air pressure. The paper provides a detailed discussion on the strategic layout of earthquake medical rescue at the national level, local government level, and through social participation. It covers the construction of rescue organizational systems, technical systems, material support systems, and information systems. The importance of building rescue teams is emphasized. In high-altitude and cold conditions, rapid response, scientific decision-making, and multi-party collaboration are identified as key elements to enhance rescue efficiency. By optimizing rescue organizational structures, strengthening the development of new equipment, and promoting telemedicine technologies, the precision and effectiveness of medical rescue can be significantly improved, providing important references for future similar disaster rescues.

Objective To investigate whether curcumin(CUR)can reduce chondrocyte inflammation and cartilage degradation in osteo-arthritis(OA)and the underlying mechanisms.Methods A rat model of OA was established.Rats were randomly divided into a Sham,OA,CUR+OA,and deferoxamine(DFO)+OA groups with 10 mice in each group.Chondrocytes from 5-day-old SD rats were divided into the control,interleukin-1β(IL-1β),CUR+IL-1β,and DFO+IL-1β groups.A CCK-8 assay was performed to assess the effects of CUR on cell viability alone or combined with IL-1β.Toluidine blue staining and alcian blue staining were used to observe the morphological changes of IL-1β-induced chondrocytes.The expression of inflammatory response-related proteins(COX-2 and iNOS),extracellular matrix degradation-related proteins(COL2A and MMP13),and p53,SLC7A11,and GPX4 proteins during ferroptosis were detected by Western blotting.The mitochondrial membrane potential was detected by JC-1 staining.Mitochondrial morphology was observed using transmission electron microscopy.Safranine O-fast green/HE staining was performed on cartilage tissues.Immunohistochemical staining was performed to detect COL2A and SLC7A11 expression levels.Results CUR and DFO were found to reduce IL-1β-induced inflammation,cartilage degradation,and ferroptosis,and restore mitochondrial function in chondrocytes.CUR also reversed IL-1β-induced changes in collagen Ⅱ,p53,SLC7A11,GPX4,MMP13,iNOS,and COX-2 levels.In vivo,intra-articular injection of CUR significantly improved cartilage injury in the OA rat model,and the percentages of COL2A-and SLC7A11-positive cells significantly increased in the CUR+OA and DFO+OA groups.Conclusion CUR inhibits ferroptosis and ameliorates cartilage degeneration in OA through p53 signaling pathway.

Objective To analyze the relationship between serum angiopoietin-like protein 8(ANGPTL8)and semaphorin 3A(Sema 3A)levels and postoperative cerebral vasospasm(CVS)in patients with intracranial aneurysm(IA)rupture.Methods A total of 188 patients with IA rupture receiving surgical treatment in our hospital were prospectively selected during October 2021 and October 2023,and according to whether CVS occurred after surgery,they were classified into a spasm group(75 cases)and a non-spasm group(113 cases).Serum ANGPTL8 and Sema 3A levels were measured after admission.Spearman correlation analysis was performed to assess the correlation of the levels with CVS occurrence.Binary logistic regression analysis was applied to construct a prediction model with serum ANGPTL8 and Sema 3A as variables.ROC curve was plotted to evaluate the predictive value of the levels for postoperative CVS.Results The serum ANGPTL8 level was significantly higher while that of Sema 3A was obviously lower in the spasm group then the non-spasm group(P＜0.01).Binary logistic regression analysis showed that the levels of serum ANGPTL8 and Sema 3A were independent predictors of postoperative CVS in patients with ruptured IA(OR=1.021,95％CI:1.013-1.029,P=0.000;OR=0.980,95％CI:0.967-0.993,P=0.003).ROC curve analysis indicated that the AUC value,sensitivity and speci-ficity of the two indicators combined together in predicting postoperative CVS was 0.939(95％CI:0.894-0.969),89.33％and 89.38％,respectively,with better predictive efficiency than each indicator alone(P＜0.01).Conclusion Serum ANGPTL8 and Sema 3A levels are closely associat-ed with postoperative CVS in patients with IA rupture,and they can be used as effective indicators for early prediction of postoperative CVS.

Objective To observe the value of T2 mapping for quantitatively evaluating the changes of junctional zone and outer myometrium caused by endometrial fibrosis.Methods A total of 73 infertility patients with endometrial fibrosis confirmed by hysteroscopy(disease group)and 33 healthy women of childbearing age(control group)were prospectively enrolled,and MR examinations were performed at the late proliferative phase of endometrium.The thickness and T2 value of junctional zone,T2 value of outer myometrium on anterior,posterior and fundus wall of midsagittal corpus uteri were measured,and the mean value of the above measurements on the three walls were calculated.Receiver operating characteristic curves were constructed,the areas under the curves(AUC)were calculated to explore the efficacy of those with significant difference among the mean thickness and the mean T2 value of junctional zone,the mean T2 value of outer myometrium and their combination for evaluating endometrial fibrosis.Results The thickness and T2 value of anterior wall,posterior wall,fundus wall and the mean junctional zone in disease group were all significantly higher than those in control group(all P＜0.001).No significant difference of T2 value of anterior wall,posterior wall,fundus wall nor the mean outer myometrium was found between groups(all P＞0.05).The mean thickness and the mean T2 value of junctional zone and their combination could be used to effectively evaluate endometrial fibrosis,with AUC of 0.839,0.822 and 0.922,respectively,and their combination had the best performance(both P＜0.01).Conclusion T2 mapping could be used to quantitatively evaluate the injury of junctional zone caused by endometrial fibrosis.

Objective To investigate the experience of ICU nurses in communication with the patients under mechanical ventilation,therefore to provide a reference for establishing and improving effective strategies in communication with the patients.Methods Using qualitative research,semi-structured interviews were conducted on 14 ICU nurses in a Tire-IIIA hospital.Data were analysed using Colaizzi's seven-step method to extract themes.Results A total of 4 themes were extracted with 11 sub-themes,they were:emotional stress in non-verbal communication(frustration and feeling of defeat,emotional exhaustion and burnout),difficulty and challenge in ineffective communication(difficulty in establishing an equal and trusting communication quickly,difficulty in accurately understanding communication requirement of patients,and difficulty in achieving effective communication and cooperation),active promotion of effective communication(use of assistive communication tools,actively seek external collaboration,early assessment and prevention of delirium),and enhancement of communication skills and a sense of professional benefit(improvement of professional communication skills and enhancement of cultural communication literacy).Conclusion ICU nurses face various emotional pressures and communication challenges.It is important to actively provide psychological support to the nurses and optimise the communication environment in order to reduce the work stress and enhance the sense of achievement and values.

With the increasing aging of the population in China,the problem of cognitive decline with age is becoming more prominent,and how to move forward to maintain and improve cognitive function in older adults has become an important research topic.Active participation in social activities has a protective effect on cognitive function in older adults.This paper summarizes the concepts of social activities,relationships with cognitive function,and strategies for promoting interventions.The corresponding nursing inspirations were proposed,aiming to provide new perspectives for improving cognitive function in older adults.

Objective To perform a regression analysis on the predictive value of serum micro-RNAs(miR)for early neurological deterioration(END)in patients with branch atheromatous dis-ease(BAD).Methods A total of 134 BAD patients admitted in our department from February 2020 to February 2023 were enrolled,and according to the END status,they were divided into de-terioration group(28 cases)and non-deterioration group(106 cases).Serum levels of miR-130a,miR-210,miR-141-3p and miR-29a-3p were measured at admission.NIHSS score was used to eval-uate the END status at admission and at 7 d after admission.Binary logistic regression analysis was adopted to construct a model of above four miRs in predicting END in BAD patients.ROC curve was plotted to assess the predictive value of the four miRs alone or combined together for END.Results The serum levels of miR-130a and miR-210 were significantly higher,while those of miR-141-3p and miR-29a-3p were obviously lower in the deterioration group than the non-deterioration group(P＜0.01).Logistic regression analysis indicated that serum miR-130a,miR-210,miR-141-3p and miR-29a-3p were independent predictors of END in BAD patients(P＜0.05,P＜0.01).ROC curve analysis showed that the AUC value of the four miRs combined together in predicting END in BAD patients was 0.977(95％CI:0.936-0.995),with a sensitivity of 96.43％and a specificity of 90.57％,and the combined detection exhibited better predictive effi-ciency than each indicator alone(P＜0.01).Conclusion Serum miR-130a,miR-210,miR-141-3p and miR-29a-3p have certain value in predicting END in BAD patients,and their combined detec-tion can enhance its predictive efficiency.