Objective: To assess the current status of knowledge, attitude, and practice (KAP) regarding health protection against air pollution among primary school students in China, and to analyze the impacts of fine particulate matter (PM 2.5 ) exposure, family, and individual factors on KAP levels, so as to provide empirical basis for implementing targeted interventions. Methods: Using stratified cluster random sampling method, a questionnaire survey was conducted among 19 297 primary school students from third to fifth grade across 30 provinces (autonomous regions and municipalities directly under the central government) in China in 2024. The questionnaire was developed based on the Technical Guidelines for the Assessment of Civic Environmental and Health Literacy (Trial), and encompasses three dimensions:knowledge, attitude, and practice. Spearman correlation analysis, Chi-square test, multivariate Logistic regression, and Bootstrap mediation effect test was applied for data analysis. Results: The overall mean KAP score for health protection against air pollution among primary school students was (79.73±13.53), with an adequacy rate of 80.47% ( n =15 528). The dimension scores for knowledge, attitude, and practice were (41.34±8.01, 16.43± 2.61 ), and (21.97±5.71), respectively. Knowledge was positively correlated with attitude and practice, and attitude was positively correlated with practice ( r =0.51, 0.35, 0.32, all P <0.01). Multivariate Logistic regression showed that the northeast region ( OR =2.36, 95% CI =2.02-2.75), having parents with a bachelor s degree or higher ( OR =4.76, 95% CI =2.71-8.37), living with both parents ( OR =1.33, 95% CI =1.15-1.55), being in the fifth grade ( OR =1.22, 95% CI =1.11-1.33), outdoor PM 2.5 level exceeding standard limits at the survey site ( OR =1.25, 95% CI =1.16-1.34), history of allergy ( OR =1.47, 95% CI =1.31-1.64), and wearing masks during heavily polluted weather ( OR =1.19, 95% CI =1.07-1.31) were promoting factors for KAP adequacy rate (all P <0.05). Conversely, obesity was a detrimental factor ( OR =0.78, 95% CI =0.69-0.88, all P <0.05). Conclusions Primary school students in China exhibit a favorable KAP level regarding health protection against air pollution, though regional, familial, and individual disparities persist. Exposure to PM 2.5 levels exceeding standard limits exerts a direct positive effect on enhancing health protection literacy. Future efforts should focus on the western region, families with lower educational attainment children to implement tailored, stratified interventions.

Objective To explore the effect of aerobic exercise on adipogenesis and insulin resis-tance(IR)in mice on high-fat diet,and to explore the mechanism of aerobic exercise regulating obe-sity-related long noncoding RNA(lnc-ORA)in this process.Methods Thirty-six 8-week-old male C57BL/6J mice,weighing 21.4±0.92 g,were randomized into a normal control group(NC),a high-fat control group(HC)and the high-fat exercise group(HE),each of 12,after one-week acclimatiz-ing feeding.Group NC was fed on normal diet,while the high-fat groups were given high-fat food for 4 weeks.Then,group HE underwent daily 45-minute aerobic exercise on a 6%-incline treadmill at a speed of 18 m/min,6 days per week,for 8-week.After the intervention,the body weight,body length,and epididymal fat weight of all groups were measured,and the adipocyte size was observed.Moreover,lipid levels,glucose tolerance,insulin sensitivity,and expression of genes related to adipo-genesis(FASN,FABP4,and PPARγ)were examined,together with the expression levels of the rele-vant signaling axes(IRS-1/PI3K/AKT/mTOR/GLUT4)and related metrics(lnc-ORA,TNFα),and en-richment levels of peroxisome proliferator-activated receptor γ(PPARγ)promoter region for histone H3 acetylation(H3ac)and histone H3K4 trimethylation(H3K4me3).Results The body weight,epidid-ymal adipose tissue weight,and body mass index(Lee's index)of group HC were significantly higher(P<0.05)than group NC,and the above indexes of group HE were significantly lower(P<0.05)than group HC after 8 weeks of aerobic exercise intervention.The levels of total cholesterol(TC),low-den-sity lipoprotein cholesterol(LDL-C),and high-density lipoprotein cholesterol(HDL-C)of the HC group were significantly higher than the NC group(P<0.05),and the lipid levels of the HE group im-proved significantly compared to the HC group(P<0.05).Moreover,the expression of adipogenesis-re-lated genes PPARγ,fatty acid synthase(FASN)and fatty acid binding protein 4(FABP4)up-regulat-ed significantly in group HC compared with group NC(P<0.05),while that of adipogenesis-related genes in group HE was significantly lower than group HC(P<0.05),with the adipocytes'size of HC group larger than the other two groups.What's more,the expression level of insulin receptor substrate 1(IRS-1)/phosphatidylinositol 3-kinase(PI3K)/protein kinase B(AKT)/mammalian target of rapamy-cin(mTOR)/glucose transporter type 4(GLUT4)pathway decreased significantly in group HC com-pared with group NC and HE(P<0.05;P<0.01,P<0.05).Meanwhile,both glucose tolerance and insu-lin sensitivity of group HC decreased significantly compared with the NC and HE groups(P<0.01,P<0.05;P<0.01,P<0.05).However,the expression of lnc-ORA and TNF-α increased significantly in group HC compared with group NC(P<0.01,P<0.05),but significantly down-regulated in group HE compared with group HC(P<0.05).The enriched levels of H3ac and H3K4me3 in the PPARγ promot-er region of group HC increased significantly compared with group NC(P<0.05),but decreased signifi-cantly in group HE compared with group HC(P<0.05).Conclusions Aerobic exercise reduces adipogen-esis via lnc-ORA/PPARγ and improves IR by modulating the IRS-1/PI3K/AKT/GLUT4 axis.

Objective:To explore the impact of diabetes mellitus on perioperative myocardial injury and cardiac function recovery in patients undergoing off-pump coronary artery bypass grafting (CABG).Methods:The clinical data of 40 patients with coronary heart disease who underwent off-pump CABG in Changsha Central Hospital from 2015 to 2025 were retrospectively included. They were divided into the diabetes group (20 cases) and the control group (20 cases) according to whether they had type 2 diabetes mellitus. Myocardial injury markers (creatine kinase isoenzyme, troponin I, lactate dehydrogenase) before surgery, on the 1st and 3rd days after surgery and before discharge, as well as cardiac function indicators (B-type natriuretic peptide, left ventricular ejection fraction) before surgery and before discharge were compared between the two groups. The postoperative recovery speed (mechanical ventilation time, intensive care unit stay, vasoactive drug use time, postoperative hospital stay) was also compared between the two groups.Results:Before surgery, there were no statistically significant differences in myocardial injury markers and cardiac function indicators between the two groups (all P>0.05). On the 3rd day after surgery, lactate dehydrogenase in the diabetes group was significantly higher than that in the control group ( P<0.05), while there were no statistically significant differences in creatine kinase isoenzyme and troponin I between the two groups (all P>0.05). Before discharge, the levels of creatine kinase isoenzyme and B-type natriuretic peptide in the diabetes group were significantly higher than those in the control group (all P<0.05), and the left ventricular ejection fraction was significantly lower than that in the control group ( P<0.05). Compared with the control group, the diabetes group had significantly longer mechanical ventilation time, intensive care unit stay, and postoperative hospital stay (all P<0.05), but there was no statistically significant difference in the use time of vasoactive drugs ( P>0.05). Conclusions:For patients with coronary heart disease complicated with diabetes mellitus, their preoperative cardiac status is comparable to that of patients without diabetes mellitus, but they show a characteristic dynamic injury pattern after surgery: early elevation of lactate dehydrogenase suggests susceptibility to subcellular injury, and long-term abnormalities of creatine kinase isoenzyme, B-type natriuretic peptide, and decrease in left ventricular ejection fraction indicate myocardial repair disorders. Compared with patients without diabetes mellitus, those with diabetes mellitus require a longer recovery time after off-pump CABG, and targeted perioperative management strategies are urgently needed.

Objective To systematically summarize the real experiences of the patients with totally implanted venous access ports(TIVAP)over the survival period of port-carrying,and provide references for formulation of the targeted health management programs.Methods A systematic search was conducted on databases of PubMed,Web of Science,Cochrane Library,CINAHL,Embase,PsycNET,China National Knowledge Infrastructure(CNKI),SinoMed,Wanfang Data base,and Vip for a qualitative study on the life experiences,needs,and feelings of patients with implanted infusion ports.The search period spanned from the inception of the databases to 3rd August,2024.Results A total of 14 studies were included,in 12 categories extracted from 38 research findings.Four synthesised results were further summarised,they were:impact on individual physical and mental health,impact on home life,challenges and needs in self-management and self-coping strategies of patients.Conclusion The implantation of TIVAP can produce both positive and negative experiences to the treatment as well as the life of patients.Healthcare professionals should be aware of the differences in emotion,cognition,need and personal coping strategy among the patients,hence to take effective measures to optimise the port-carrying experience of the patients,enhance the self-management enthusiasm and improve the quality of life of patients.

Objective:To explore the correlation between conventional ultrasound and contrast-enhanced ultrasound features and invasive histological features of T 1a clear cell renal cell carcinoma (ccRCC). Methods:A retrospective case series study was conducted. Sixty-seven T 1a ccRCC patients who were admitted to Shanxi Province Cancer Hospital from May 2018 to August 2023 were selected. According to the World Health Organization (WHO)/International Society of Urology and Pathology (ISUP) renal tumor grading system, the patients were divided into the low-grade group (WHO/ISUP grades 1-2, 53 cases) and the high-grade group (WHO/ISUP grades 3-4, 14 cases). The conventional ultrasound and contrast-enhanced ultrasound characteristics of two groups of patients were compared. Multivariate logistic regression model was used to analyze the independent factors of conventional ultrasound and contrast-enhanced ultrasound related to T 1a ccRCC with WHO/ISUP high grade. Results:There were no statistically significant differences in clinical characteristics between the two groups of patients (all P > 0.05). In conventional ultrasound examination, the proportion of patients with tumor exophytic rate <50% in the high-grade group was higher than that in the low-grade group [64.3% (9/14) vs. 34.0% (18/53)], and the difference was statistically significant ( χ2 = 4.23, P = 0.040); there were no statistically significant differences in the distribution of patients with different tumor maximum diameter, laterality, polarity, depth, echo, boundary, and shape between the two groups (all P > 0.05). In contrast-enhanced ultrasound examination, the proportion of patients lack of pseudocapsule sign in the high-grade group was higher than that in the low-grade group [57.1% (8/14) vs. 24.5% (13/53)], and the difference was statistically significant ( χ2 = 4.06, P = 0.044); there were no statistically significant differences in the distribution of patients with different perfusion mode, enhancement degree, enhancement uniformity, and regression mode between the two groups (all P > 0.05). Multivariate logistic regression analysis showed that the conventional ultrasound tumor exophytic rate < 50% (compared to exophytic rate ≥ 50%, OR = 3.732, 95% CI: 1.019-13.664, P = 0.047) and the absence of pseudocapsule sign (compared to the presence of pseudocapsule sign, OR = 4.357, 95% CI: 1.201-15.804, P = 0.025) on contrast-enhanced ultrasound were independent risk factors for high-grade T 1a ccRCC. Conclusions:T 1a ccRCC with the exophytic rate <50% and absence of pseudocapsule sign may have invasive histological features.

Primary aldosteronism(PA) is the most common endocrine cause of secondary hypertension and is characterized by hypertension, hypokalemia, suppressed renin, and inappropriately elevated aldosterone. Increasing evidence indicates disturbances in calcium homeostasis among patients with PA. The calcium-regulatory system encompasses calcium and phosphate, parathyroid hormone(PTH), and vitamin D. Patients with PA frequently exhibit hypocalcemia, hypophosphatemia, elevated PTH, and reduced vitamin D levels. Clarifying the contribution of calcium dysregulation to PA pathogenesis is clinically relevant for mitigating target-organ damage. This review summarizes: (1) the role of aberrant calcium signaling in the development of PA; (2) characteristic features of calcium homeostasis in PA; and (3) the interactions between the renin-angiotensin-aldosterone system(RAAS) and calcium-regulatory pathways. Overall, abnormalities in calcium signaling appear integral to the pathogenesis of PA, and disrupted calcium homeostasis may aggravate target-organ injury in affected patients.

Objective To explore the effect of aerobic exercise on adipogenesis and insulin resis-tance(IR)in mice on high-fat diet,and to explore the mechanism of aerobic exercise regulating obe-sity-related long noncoding RNA(lnc-ORA)in this process.Methods Thirty-six 8-week-old male C57BL/6J mice,weighing 21.4±0.92 g,were randomized into a normal control group(NC),a high-fat control group(HC)and the high-fat exercise group(HE),each of 12,after one-week acclimatiz-ing feeding.Group NC was fed on normal diet,while the high-fat groups were given high-fat food for 4 weeks.Then,group HE underwent daily 45-minute aerobic exercise on a 6%-incline treadmill at a speed of 18 m/min,6 days per week,for 8-week.After the intervention,the body weight,body length,and epididymal fat weight of all groups were measured,and the adipocyte size was observed.Moreover,lipid levels,glucose tolerance,insulin sensitivity,and expression of genes related to adipo-genesis(FASN,FABP4,and PPARγ)were examined,together with the expression levels of the rele-vant signaling axes(IRS-1/PI3K/AKT/mTOR/GLUT4)and related metrics(lnc-ORA,TNFα),and en-richment levels of peroxisome proliferator-activated receptor γ(PPARγ)promoter region for histone H3 acetylation(H3ac)and histone H3K4 trimethylation(H3K4me3).Results The body weight,epidid-ymal adipose tissue weight,and body mass index(Lee's index)of group HC were significantly higher(P<0.05)than group NC,and the above indexes of group HE were significantly lower(P<0.05)than group HC after 8 weeks of aerobic exercise intervention.The levels of total cholesterol(TC),low-den-sity lipoprotein cholesterol(LDL-C),and high-density lipoprotein cholesterol(HDL-C)of the HC group were significantly higher than the NC group(P<0.05),and the lipid levels of the HE group im-proved significantly compared to the HC group(P<0.05).Moreover,the expression of adipogenesis-re-lated genes PPARγ,fatty acid synthase(FASN)and fatty acid binding protein 4(FABP4)up-regulat-ed significantly in group HC compared with group NC(P<0.05),while that of adipogenesis-related genes in group HE was significantly lower than group HC(P<0.05),with the adipocytes'size of HC group larger than the other two groups.What's more,the expression level of insulin receptor substrate 1(IRS-1)/phosphatidylinositol 3-kinase(PI3K)/protein kinase B(AKT)/mammalian target of rapamy-cin(mTOR)/glucose transporter type 4(GLUT4)pathway decreased significantly in group HC com-pared with group NC and HE(P<0.05;P<0.01,P<0.05).Meanwhile,both glucose tolerance and insu-lin sensitivity of group HC decreased significantly compared with the NC and HE groups(P<0.01,P<0.05;P<0.01,P<0.05).However,the expression of lnc-ORA and TNF-α increased significantly in group HC compared with group NC(P<0.01,P<0.05),but significantly down-regulated in group HE compared with group HC(P<0.05).The enriched levels of H3ac and H3K4me3 in the PPARγ promot-er region of group HC increased significantly compared with group NC(P<0.05),but decreased signifi-cantly in group HE compared with group HC(P<0.05).Conclusions Aerobic exercise reduces adipogen-esis via lnc-ORA/PPARγ and improves IR by modulating the IRS-1/PI3K/AKT/GLUT4 axis.

Objective To systematically summarize the real experiences of the patients with totally implanted venous access ports(TIVAP)over the survival period of port-carrying,and provide references for formulation of the targeted health management programs.Methods A systematic search was conducted on databases of PubMed,Web of Science,Cochrane Library,CINAHL,Embase,PsycNET,China National Knowledge Infrastructure(CNKI),SinoMed,Wanfang Data base,and Vip for a qualitative study on the life experiences,needs,and feelings of patients with implanted infusion ports.The search period spanned from the inception of the databases to 3rd August,2024.Results A total of 14 studies were included,in 12 categories extracted from 38 research findings.Four synthesised results were further summarised,they were:impact on individual physical and mental health,impact on home life,challenges and needs in self-management and self-coping strategies of patients.Conclusion The implantation of TIVAP can produce both positive and negative experiences to the treatment as well as the life of patients.Healthcare professionals should be aware of the differences in emotion,cognition,need and personal coping strategy among the patients,hence to take effective measures to optimise the port-carrying experience of the patients,enhance the self-management enthusiasm and improve the quality of life of patients.

Objective To investigate indoor radon concentrations and environmental cumulative doses in residential and office units in Shenzhen, and estimate the average annual effective dose, and to provide data for assessing public health risks. Methods Within the 11 administrative districts of Shenzhen (including the Shenzhen-Shanwei Special Cooperation Zone), 17 residential units and 3 office units were randomly selected as monitoring sites in each district. The units selected represented buildings of different ages and various floors on which the units were located. Radon detectors and environmental cumulative dosimeters were deployed for monitoring. Results The indoor radon concentrations in Shenzhen during the two monitoring periods were (36.6 ± 16.5) Bq/m³ and (19.8 ± 15.3) Bq/m³, respectively. The environmental cumulative doses for the two monitoring periods were (0.33 ± 0.07) mSv and (0.25 ± 0.04) mSv, respectively. The estimated average annual effective dose due to indoor radon in Shenzhen was 0.92 mSv. Conclusion All monitored indoor radon concentrations in Shenzhen were below the national standard of China. The indoor radon concentrations exhibited significant regional variations, were higher in spring than in summer, and showed no statistically significant differences across buildings of different ages or units of various floors. The trends in indoor radon concentrations and environmental cumulative doses were highly consistent. The average indoor radon concentration in Shenzhen was lower than both the global and national levels, indicating a low risk of internal radiation exposure from radon.

Myocardial injury is the leading cause of death in uremic patients.PINK 1/Parkin-mediated mitochondrial autophagy is involved in the progression of myocardial injury.In recent years,pathogenic turbidity has been gradually accepted as a representative of a new type of toxic pathogens by the researchers of traditional Chinese medicine(TCM).This paper sorts out literature about pathogenic turbidity,analyzes the etiological and pathogenic characteristics of pathogenic turbidity,and suggests that the pathogenesis of uremia-induced myocardial injury can be more comprehensively clarified from the perspective of healthy-qi deficiency resulting in latent pathogenic turbidity.In the patients with uremia,the down-regulation of PINK1/Parkin causes the weakening of mitochondrial autophagy,which leads to the elevation of levels of reactive oxygen species(ROS)and inflammatory factors,and eventually causes the injury of myocardial cell.The above pathogenic mechanism is similar to the process of traditional Chinese medicine(TCM)in which the deficiency of the healthy-qi(in particular kidney deficiency)results in the production of the pathogenic turbidity(showing as dampness,blood stasis,phlegm,toxin and so on)and then causes the pathogenic turbidity hide in vessels and collaterals and gradually injure the heart vessels,and eventually results in the deficiency of heart vessels.The mitochondrial autophagy mechanism mediated by the PINK1/Parkin pathway is suitalbe for explaining the TCM pathogenesis of uremia-induced myocardial injury,characterized by healthy-qi deficiency resulting in latent pathogenic turbidity,and also is suitable for interpretating the principle of supporting healthy-qi to eliminate pathogenic turbidity for treating uremia-induced myocardial injury.Under the guidance of the theory of health y-qi deficiency and turbid pathogens in TCM,the development of specific PINK 1/Parkin agonists may expand the approach for the treatment of uremia-induced myocardial injury.