Objective In order to understand the current resistance status of Aedes albopictus(Ae. albopictus) adult population to commonly used insecticides and the resistance dynamics development in Zhejiang Province and provide a theoretical basis for the scientific and rational use of hygienic insecticides. Methods Resistance determination was carried out using the diagnostic dose method(GB/T 26347-2010)recommended by WHO in the adult mosquito contact cylinder method to monitor the resistance of Ae. albopictus field populations in 11 cities and districts in Zhejiang Province in 2024. Results The monitoring result showed that adult Ae. albopictus in 11 areas were resistant or suspected resistant populations to both cis-cypermethrin and permethrin; suspected and resistant populations to the organophosphate insecticide malathion were as high as 81.82%; while suspected resistance to the carbamate insecticide residual carbofuran accounted for 45.45%, and the rest of the monitoring sites were sensitive to it. Conclusions The result suggest that the generalized resistance of Ae. albopictus populations to pyrethroids and organophosphorus insecticides in the field in Zhejiang Province needs to be highly emphasized. In future mosquito vector and mosquito-borne disease control, insecticides should be selected based on the resistance monitoring information, while following scientific guidelines for insecticide use.

AIM: To investigate the current incidence of retinopathy of prematurity(ROP)in Sichuan Province and analyze its risk factors, providing a scientific basis for establishing and improving the regional ROP screening and prevention system.METHODS: A retrospective study was conducted on premature infants who underwent fundus screening at the Departments of Ophthalmology and Neonatology of Sichuan Provincial Maternity and Child Health Care Hospital from January 20, 2017 to February 10, 2025. The incidence of ROP was calculated. The patients were divided into ROP group and non-ROP group according to whether ROP occurred, and the clinical characteristics of the two groups were compared. Multivariate Logistic regression was used to analyze risk factors for ROP.RESULTS:This study included a total of 861 premature infants, with 445 males(51.7%)and 416 females(48.3%).ROP occurred in 166 cases, with an incidence rate of 19.3%, and the non-ROP group consisted of 695 cases. The mean gestational age of the ROP and non-ROP groups was 30.24±2.20 and 33.06±1.90 wk(P<0.01), while the mean birth weight was 1438.94±389.66 and 1977.32±438.68 g(P<0.01). By comparing the clinical data of the two groups of preterm infants, the following factors were found to be associated with the occurrence of ROP: younger gestational age, low birth weight, history of oxygen therapy, respiratory distress syndrome, intracranial hemorrhage, neonatal anemia, bronchopulmonary dysplasia, patent ductus arteriosus, and sepsis(all P<0.01). Multivariate Logistic regression analysis revealed that gestational age(OR=0.685,95%CI:0.592-0.792,P<0.01), birth weight(OR=0.999,95%CI:0.998-0.999,P<0.01), and respiratory distress syndrome(OR=2.312,95%CI:1.313-4.070,P<0.01)were risk factors for ROP. Gestational age had the greatest impact.The younger the gestational age at birth, the higher the risk of ROP.CONCLUSION:The incidence of ROP in Sichuan Province is relatively high compared to multicenter results from China. Significant risk factors include younger gestational age, low birth weight, and respiratory distress syndrome. Screening criteria should be formulated based on the local incidence of ROP, and a screening, prevention, and treatment system for ROP should be established and improved.

Objective To explore the risk factors for postoperative pneumonia (POP) following esophagectomy for esophageal cancer, and to identify potential clinical indicators for predicting POP. Methods A retrospective analysis was conducted on the clinical data of patients with esophageal cancer who underwent esophagectomy at the Department of Thoracic Surgery, West China Hospital of Sichuan University from 2017 to 2021. Perioperative clinical indicators were collected to analyze the risk factors for the occurrence of POP. Patients were divided into a POP group and a non-POP group according to whether POP occurred. Results A total of 613 patients with esophageal cancer were included, comprising 472 males and 141 females, with a median age of 62.0 (53.0, 67.0) years. Among them, 51 patients were in the POP group, and 562 patients were in the non-POP group. Multivariate logistic regression analysis showed that the forced expiratory volume in 1 second percentage of predicted (FEV1%) [OR=0.958, 95%CI (0.943, 0.973), P<0.001], systemic immune-inflammation index (SII) [OR=1.001, 95%CI (1.000, 1.002), P=0.007], and prognostic nutritional index (PNI) [OR=0.869, 95% CI (0.813, 0.928), P<0.001] were independent risk factors for POP. Receiver operating characteristic (ROC) curve analysis combining FEV1%, SII, and PNI demonstrated that the area under the curve (AUC) for predicting POP was 0.826 [95%CI (0.793, 0.855), cut-off value: 0.08, sensitivity: 80.3%, specificity: 72.4%, Youden index: 0.528, P<0.001]. Cross-validation confirmed that the combined indicators had the highest predictive efficacy, which was significantly superior to that of any single indicator alone. Conclusion Preoperative levels of FEV1%, SII, and PNI are closely associated with the occurrence of POP following surgery for esophageal cancer. The combined application of FEV1%, SII, and PNI demonstrates good predictive efficacy for the occurrence of POP.

ObjectiveFor prepubertal and urgently treated malignant tumor patients, ovarian tissue cryopreservation and transplantation represent more appropriate fertility preservation methods. Current clinical practices often involve freezing ovarian tissue with high concentrations of cryoprotectants (CPAs) and thawing with water baths. These processes lead to varying degrees of toxicity and devitrification damage to ovarian tissue. Therefore, this paper proposes optimized methods for vitrification of ovarian tissues based on sodium alginate hydrogel encapsulation and magnetic induction nanowarming technology. MethodsFirstly, the study investigated the effects of sodium alginate concentration, the sequence of hydrogel encapsulation and CPAs loading on vitrification efficiency of encapsulated ovarian tissue. Additionally, the capability of sodium alginate hydrogel encapsulation to reduce the required concentration of CPAs was validated. Secondly, a platform combining water bath and magnetic induction nanowarming was established to rewarm ovarian tissue under various concentrations of magnetic nanoparticles and magnetic field strengths. The post-warming follicle survival rate, antioxidant capacity, and ovarian tissue integrity were evaluated to assess the efficacy of the method. ResultsThe study found that ovarian tissue encapsulated with 2% sodium alginate hydrogel exhibited the highest follicle survival rate after vitrification. The method of loading CPAs prior to encapsulation proved more suitable for ovarian tissue cryopreservation, effectively reducing the required concentration of CPAs by 50%. A combination of 8 g/L Fe₃O₄ nanoparticles and an alternating magnetic field of 300 Gs showed optimal warming effectiveness for ovarian tissue. Combining water bath rewarming with magnetic induction nanowarming yielded the highest follicle survival rate, enhanced antioxidant capacity, and preserved tissue morphology. ConclusionSodium alginate hydrogel encapsulation of ovarian tissue reduces the concentration of CPAs required during the freezing process. The combination of magnetic induction nanowarming with water bath provides an efficient method ovarian tissue rewarming. This study offers novel approaches to optimize ovarian tissues vitrification.

BACKGROUND:Leonurine has many biological activities such as improving microcirculation,anti-oxidation,anti-apoptosis,scavenging free radicals,anti-inflammation,and anti-fibrosis,and can promote osteogenic differentiation of bone marrow mesenchymal stem cells,which has the potential to be applied in the treatment of periodontitis. OBJECTIVE:To explore the anti-inflammatory and osteogenic effects of leonurine loading into chitosan/sodium glycerophosphate/sodium alginate hydrogel. METHODS:(1)Chitosan/sodium glycerophosphate/sodium alginate hydrogel(blank hydrogel)and chitosan/sodium glycerophosphate/sodium alginate/leonurus alkali hydrogel were prepared respectively.RAW 264.7 and MC3T3-E1 cells were inoculated with the two kinds of hydrogel.The cytotoxicity of hydrogels was detected by CCK-8 assay and live/dead cell staining.(2)RAW 264.7 cells were cultured in five groups.The blank group was cultured for 24 hours routinely.The lipopolysaccharide group was treated with lipopolysaccharide.The simple hydrogel group was treated with lipopolysaccharide and blank hydrogel.The drug-loaded hydrogel group was treated with lipopolysaccharide and drug-loaded hydrogel.The inhibitor group was treated with lippolysaccharide,drug-loaded hydrogel,and PI3K inhibitor LY294002.24 hours later,mRNA expression of inflammation-related factors was detected by qRT-PCR.Western blot assay was utilized to detect the protein expression of inflammation-related factors and PI3K/AKT signaling pathway.(3)MC3T3-E1 cells were inoculated in four groups.The blank group was cultured without any material.The simple hydrogel group was treated with blank hydrogel.The drug-loaded hydrogel group was treated with drug-loaded hydrogel.The inhibitor group was treated with drug-loaded hydrogel and PI3K inhibitor LY294002 for 7 days.Alkaline phosphatase staining was performed.mRNA expression levels of osteogenic factors were detected by qRT-PCR.The protein expression levels of the PI3K/AKT signaling pathway were detected by western blot assay. RESULTS AND CONCLUSION:(1)The results of CCK-8 assay and live/dead cell staining showed that the two kinds of hydrogels had no cytotoxic effect and had good cytocompatibility.(2)Compared with the blank group,the mRNA and protein expression levels of interleukin 6,tumor necrosis factor α,and interleukin 1β were significantly increased(P<0.05),and the protein expression levels of p-AKT,p-PI3K,p-p65,and p-IκBα were significantly increased in the lipopolysaccharide group(P<0.05).Compared with lipopolysaccharide group,mRNA and protein expression levels of the above indexes were decreased in drug-loaded hydrogel group(P<0.05).Compared with the drug-loaded hydrogel group,the mRNA and protein expression levels of the above indexes were decreased in the inhibitor group(P<0.05).(3)The activity of alkaline phosphatase in drug-loaded hydrogel group was higher than that in the blank group,simple hydrogel group,and inhibitor group(P<0.05).Compared with blank group,the mRNA expression levels of alkaline phosphatase,Runx2,osteocalcin,and type I collagen were increased(P<0.05),and the protein expression levels of p-AKT and p-PI3K were increased in the simple hydrogel group(P<0.05).Compared with the simple hydrogel group,the mRNA and protein expression levels of the above indexes were increased in the drug-loaded hydrogel group(P<0.05).Compared with the drug-loaded hydrogel group,the mRNA and protein expression levels of the above indexes were decreased in the inhibitor group(P<0.05).(4)These findings conclude that chitosan/sodium glycerophosphate/sodium alginate/leonurine hydrogel has anti-inflammatory and osteogenic effects,which may be related to the regulation of PI3K/AKT signaling pathway.

ObjectiveTo evaluate the effectiveness of stone needle thermocompression and massage compared to flurbiprofen gel patch in relieving chronic musculoskeletal pain in the shoulder and back， and to explore the potential mediating mechanism through muscle elasticity. MethodsA total of 120 patients with chronic musculoskeletal pain in the shoulder and back were randomly assigned to either stone needle group or flurbiprofen group， with 60 patients in each. The stone needle group received stone needle thermocompression and massage for 30 minutes， three times per week； the flurbiprofen group received flurbiprofen gel patch twice daily. Both groups were treated for 2 weeks. Pain improvement， as the primary outcome， was assessed using the Global Pain Scale （GPS） at baseline， after 2 weeks of treatment， and again 2 weeks post-treatment. To explore potential mechanisms， a mediator analysis was conducted by measuring changes in superficial and deep muscle elasticity using musculoskeletal ultrasound at baseline and after the 2-week treatment period. ResultsThe stone needle group showed significantly greater pain relief than the flurbiprofen group 2 weeks post-treatment. After adjusting for confounders related to pain duration， the between-group mean difference was -8.8 ［95% CI （-18.2， -0.7）， P＜0.05］. Part of the therapeutic effect was mediated by changes in deep muscle elasticity， with a mediation effect size of -1.5 ［95% CI （-2.0， -0.9）， P = 0.024］， accounting for 17.9% of the total effect. ConclusionStone needle thermocompression and massage can effectively relieve chronic musculoskeletal pain in the shoulder and back， partly through a mediating effect of improved deep muscle elasticity.

Objective To investigate the correlation between glycemic variability metrics and the risk of diabetic foot(DF)in patients with type 2 diabetes mellitus(T2DM)utilizing flash glucose monitoring(FGM)tech-nology.Methods A retrospective analysis was conducted on 233 hospitalized patients with T2DM,with or without DF,who were treated in the Department of Endocrinology at Lianyungang First People's Hospital from January 2021 to May 2022 and monitored using FGM.Patients were categorized into a non-DF group(n=147)and a DF group(n=86)based on the presence of DF.The study compared general clinical characteristics,biochemical parameters,and glycemic variability metrics between the two groups and performed subgroup analyses.Binary logistic regression was employed to identify factors associated with the risk of DF,while receiver operating characteristic(ROC)curves were utilized to assess the predictive value of glycemic variability metrics for DF.Results Compared with the non-DF group,patients in the DF group exhibited significantly longer disease duration,higher body mass index(BMI),glycated hemoglobin(HbA1c),urinary albumin-to-creatinine ratio(UACR),alanine aminotransferase(ALT),serum uric acid(SUA),mean amplitude of glycemic excursions(MAGE),coefficient of variation(CV),mean of daily differences(MODD),and mean blood glucose(MBG),but lower fasting C-peptide(FCP),fasting insulin(FINS),high-density lipoprotein cholesterol(HDL-C),and time in range(TIR),with statistically signifi-cant differences(P<0.05).Subgroup analysis revealed that TIR was associated with the incidence of DF and diabetic retinopathy(DR).Binary logistic regression analysis identified HbA1c,MAGE,MODD,and MBG as risk factors for DF,while TIR was a protective factor(P<0.05).ROC curve analysis demonstrated that the area under the curve(AUC)for predicting DF using HbA1c,TIR,MAGE,MODD,MBG,and their combination were 0.646,0.850,0.868,0.764,0.619,and 0.967,respectively,indicating superior performance of the combined prediction model.Conclusions HbA1c,TIR,MAGE,MODD,and MBG are critical factors associated with the development of DF in patients with T2DM.Targeted early interventions aimed at optimizing these glycemic variability indicators may effectively reduce the incidence of DF.

Objective:To investigate the epidemic characteristics of human brucellosis and the awareness of brucellosis prevention and control knowledge among occupational populations in Xuzhou City, Jiangsu Province.Methods:The data of brucellosis cases reported from January to December 2023 in the China Disease Prevention and Control Information System's Infectious Disease Surveillance System where the current residence was Xuzhou City, were collected. The epidemiological distribution characteristics across the three dimensions (time, region, and population) were analyzed, and the etiological characteristics of Brucella strains collected from sentinel hospitals in Xuzhou City during the same period were analyzed. Meanwhile, in September 2023, a survey was conducted on the awareness of brucellosis prevention and control knowledge among occupational populations in 7 counties (cities, districts) with a high incidence of brucellosis in Xuzhou City. Binary logistic regression was used to analyze the influencing factors. Results:In 2023, a total of 124 human brucellosis cases were reported in Xuzhou City, with an annual incidence rate of 1.37/100 000. Brucellosis occurred in all months of the year, with a peak incidence from May to August, accounting for 46.77% (58/124). The incidence rate of brucellosis in Feng County, Pei County, Suining County, Xinyi City and Pizhou City (1.86/100 000) was higher than that in Gulou District, Yunlong District, Quanshan District, Jiawang District and Tongshan District (0.71/100 000), with a statistically significant difference (χ 2 = 19.15, P < 0.001). Among 124 cases of brucellosis, 81 cases (65.32%) were males and 43 cases (34.68%) were females. The incidence rate of brucellosis in males (1.78/100 000) was higher than that in females (0.96/100 000), with a statistically significant difference (χ 2 = 11.08, P < 0.001). The 55 - 64 age group reported a relatively higher number of cases (45 cases, 36.29%), with an incidence rate of 3.97/100 000. The main occupation was farmers (85 cases, 68.55%). In 2023, a total of 9 strains of Brucella were collected from the sentinel hospitals in Xuzhou City, all of which were Brucella melitensis, mainly classified as biotype 3 (7/9). In 2023, a total of 984 occupational population with brucellosis were surveyed in Xuzhou City, and the overall awareness rate of brucellosis prevention and control knowledge was 3.25% (32/984). By binary logistic regression analysis, the awareness rates of brucellosis prevention and control knowledge among veterinarians and those with high school or vocational school education, college education or above were relatively high [ OR (95% CI): 21.24 (1.52 - 297.74), 13.32 (3.48 - 50.96), 18.90 (3.68 - 97.13), P < 0.05]. Conclusions:In 2023, the incidence rate of human brucellosis in Xuzhou City is at a relatively high level, with men, middle-aged and elderly people, and farmers as the main population. The awareness rate of brucellosis prevention and control knowledge among occupational population is relatively low, and it is necessary to strengthen publicity, education, and behavioral intervention.

Objective To observe changes in voltage-dependent anion channel 3(VDAC3)in a mouse model of sepsis-induced myocardial injury and to explore its potential mechanism.Methods Twenty male C57BL/6J mice were divided randomly into a Sham group and Sepsis group,respectively(n=10 mice per group).Sepsis was induced by the cecal ligation and puncture(CLP).Serum levels of interleukin(IL)-6,tumor necrosis factor(TNF)-α,creatine kinase MB(CK-MB),and cardiac troponin T(cTnT)were detected by enzyme-linked immunosorbent assay.Pathological changes in heart tissue were observed by hematoxylin and eosin staining.Structural and functional changes in the heart were evaluated by echocardiography.Changes in total glutathione,reduced glutathione(GSH),oxidized glutathione,and malondialdehyde(MDA)in heart tissue were detected by spectrophotometry.The morphological structure of mitochondria in mouse cardiomyocytes was observed by transmission electron microscopy.Expression levels of IL-6,IL-1β,VDAC3,glutathione peroxidase 4(GPX4),solute carrier family 7 member 11(SLC7A11),lipocalin-2(LCN2),and prostaglandin-endoperoxide synthase 2(PTGS2)mRNA were detected by real-time quantitative polymerase chain reaction and the localization and expression of VDAC3 and GPX4 proteins in mouse heart tissue were detected by immunofluorescence staining.The correlations between VDAC3 mRNA and GPX4,SLC7A11,PTGS2,LCN2,IL-6,and IL-1β mRNA were analyzed.Expression levels of VDAC3,GPX4,and SLC7A11 proteins were detected by Western blot.Results IL-6,TNF-α,CK-MB,and cTnT levels were significantly higher in the Sepsis group compared with the Sham group(P＜0.05).In the Sepsis group,myocardial fibers were torn,the ventricular wall was thickened and edematous,the mitochondrial membrane was ruptured,and mitochondrial cristae were broken or absent.GSH levels were significantly reduced in the Sepsis group(P＜0.05)and the lipid peroxide MDA was increased in the Sepsis group(P＜0.05)compared with the Sham group.VDAC3,GPX4 and SLC7A11 mRNA and protein levels were all lower in the Sepsis group compared with the Sham group(P＜0.05),while expression levels of IL-6,IL-1β,LCN2,and PTGS2 mRNA were increased(P＜0.05).VDAC3 mRNA was positively correlated with GPX4 and SLC7A11 mRNA levels,and negatively correlated with LCN2,PTGS2,IL-6,and IL-1β.Conclusions VDAC3 expression decreases in myocardial injury,and it may participate in the occurrence of sepsis-induced myocardial injury by regulating ferroptosis.

Objective:To explore the value of ultrasound elastography (USE) in evaluating the stability and prognosis of carotid plaque (CP) in patients with cerebral infarction(CI).Methods:A total of 94 patients with CI admitted to Dongying District People′s Hospital of Dongying City from January 2022 to December 2023 were retrospectively selected as the study objects, all of whom were treated with carotid artery dissection. The presence of CP was confirmed by pathological examination. The head and neck of patients were examined by conventional ultrasound and USE before surgery, respectively, and the diagnostic value of the two methods on CP stability was compared. The difference of strain value and strain rate among different plaque types was compared, and the correlation between different plaque types and the score of ESSEN Stroke Risk Scale (ESRS) was analyzed.Results:The sensitivity, specificity, accuracy, positive predictive value and negative predictive value of conventional ultrasonic detection of CP were 75.00%, 71.43%, 74.00%, 87.10% and 52.63%; and of USE were 90.28%, 89.29%, 90.00%, 95.59%, 78.13%. The strain values and strain rates of stable plaques were lower than those of vulnerable plaques : (0.73 ± 0.11) × 10 3 vs. (2.42 ± 0.57) × 10 3, (6.57 ± 0.84) s -1 vs. (9.36 ± 2.55) s -1, there were statistical differences ( P<0.01). The ESRS scores of patients with vulnerable plaques were mostly ≥3 scores, and those with stable plaques were mostly<3 scores, there was statistical differences ( P<0.01). The scores of National Institutes of Health Stroke Scale (NIHSS) and modified Rankin Scale (mRS) 3 months after the onset of stable plaque were lower than those of vulnerable plaque patients: (26.80 ± 8.47) scores vs. (34.67 ± 8.98) scores, (3.97 ± 0.84) scores vs. (4.55 ± 1.61) scores, there were statistical differences ( P<0.01 or <0.05). Conclusions:USE has significant advantages in detecting CP stability in CI patients, which can efficiently and accurately assess the risk of plaque and provide important information for clinical use.