Objective: To evaluate the intervention effect of school based salt reduction health education, so as to provide a scientific basis for constructing a more effective and sustainable salt reduction intervention model for children. Methods: According to a randomized controlled trial design, in June 2022, probability proportional to size sampling was used to select 501 second grade students (248 in the control group and 253 in the intervention group) from 10 primary schools in Zhenjiang (intervention group) and 10 primary schools in Yangzhou (control group), Jiangsu Province. An one year school based salt reduction health education intervention was implemented. This included 20 online and 8 offline health education sessions, monitoring of salt consumption in the canteen, and the establishment of a salt reduction environment on campus. The control group received no additional salt reduction interventions. A questionnaire survey and 24 hour urinary sodium test were conducted before and after the intervention. The difference in differences method was used to evaluate the intervention effect. Results: After the intervention, the intervention group showed significant net intervention effects in knowledge aspects, including knowing that primary school students consume less salt than adults ( OR=3.55,95%CI =1.69-7.47), daily salt intake of primary school students ( OR=6.64,95%CI =3.71-11.87), long term high salt intake leading to hypertension ( OR=6.83,95%CI =3.93-11.91), low salt intake not causing hair graying ( OR= 1.66 ,95%CI =1.00-2.75), salt content in food labels ( OR=4.56,95%CI =2.63-7.91), and common high salt foods ( OR=3.39,95%CI =1.87-6.14) (all P <0.05). In terms of attitude, the net intervention effect for having a positive attitude toward using less salt in home cooking was significantly increased ( OR=1.88,95%CI =1.13-3.12, P <0.05). There were no statistically significant net intervention effects for salt reduction related behaviors (all P >0.05). There was no statistically significant difference in the changes of 24 hour urinary sodium between the intervention group and the control group before and after intervention ( P >0.05). Conclusions School based salt reduction health education effectively improves students salt reduction knowledge and attitudes but has a limited effect on behavior change. The home-school collaboration should be strengthened, and the dietary environment should be optimized simultaneously.

Rice (Oryza sativa L.) is an important food crop. The appearance of lesion mimics in rice leads to phytohormone disorders, which affects rice adaptation to environmental stresses and ultimately reduces the yield and quality. To explore whether the changes in the adaptability of rice lesion-mimic mutants to stressful environments are caused by the disorder of phytohormone metabolism in plants. In this study, we screened an ethyl methane sulfonate-treated population of the japonica cultivar 'Taipei 309' for a mutant with rust-like spots on leaves at the early tillering stage and brown-red spots at maturity and named it rsl1 (rust spotted leaf 1). Compared with the wild type, rsl1 showed decreases in plant height, panicle length, primary branch number, secondary branch number, filled grains per panicle, seed-setting rate, and 1 000-grain weight, and an increase in number of effective panicles. Genetic analysis indicated that rsl1 was controlled by a single recessive nuclear gene. RSL1 was localized between two molecular markers, B7-7 and B7-9, on rice chromosome 7 by map-based cloning. PCR sequencing of the annotated genes in this interval revealed a mutation of C1683A on the eighth exon of SPL5 (LOC_Os07g10390) in rsl1, which resulted in premature termination of protein translation. Exogenous phytohormone treatments showed that rsl1 was less sensitive to salicylic acid (SA), abscisic acid (ABA), and indo-3-acetic acid (IAA) and more sensitive to methyl jasmonate (MeJA) and gibberellin acid (GA) than the wild type. In addition, the survival rate of rsl1 was lower than that of the wild type under salt, alkali, drought, and high temperature stresses, and it was higher than that of the wild type under cold stress. Quantitative real-time polymerase chain reaction (qRT-PCR) results showed that RSL1 was involved in the regulation of ABA, SA, MeJA, IAA, and GA-related genes under abiotic stresses. The present study showed that the RSL1 mutation led to the appearance of lesion mimics and affected the growth, development, and stress resistance of rsl1 under abiotic stresses. The study of the functional mechanism of this gene can provide theoretical guidance for the research on rice stress resistance.
Oryza/microbiology* ; Stress, Physiological/genetics* ; Plant Diseases/genetics* ; Cloning, Molecular ; Chromosome Mapping ; Plant Growth Regulators/metabolism* ; Plant Proteins/genetics* ; Mutation ; Cyclopentanes ; Genes, Plant ; Plant Leaves/genetics* ; Oxylipins

Synthetic biology, recognized as one of the most revolutionary interdisciplinary fields in the 21st century, has established innovative strategies for the genetic improvement of rice through the integration of multidisciplinary technologies including genome editing, genetic circuit design, metabolic engineering, and artificial intelligence. This review systematically summarizes recent research advancements and breakthrough achievements in the application of synthetic biology in the genetic improvement of rice, focusing on three critical domains: yield improvement, nutritional quality fortification, and reinforcement of disease resistance and abiotic stress tolerance. It elucidates that synthetic biology enables precise genomic and metabolic pathway engineering through modular, standard, and systematic approaches, effectively overcoming the limitations of conventional breeding methods characterized by prolonged cycles and restricted trait modification capabilities. The implementation of synthetic biology has facilitated synergistic improvement of multi-traits, thereby providing critical technical references for developing elite rice cultivars with superior productivity and nutritional value. These technological breakthroughs hold significant implications for ensuring global food security and promoting green and sustainable development of agriculture.
Oryza/growth & development* ; Synthetic Biology/methods* ; Metabolic Engineering ; Plant Breeding/methods* ; Gene Editing ; Genetic Engineering/methods* ; Plants, Genetically Modified/genetics* ; Disease Resistance/genetics*

Objective:To investigate the protective mechanism of cerium oxide nanoparticles(CeO2 NPs)against acute pancreatitis(AP),with a focus on their antioxidant and anti-inflammatory properties.Methods:CeO2 NPs were characterized by transmission elec-tron microscopy(TEM)and dynamic light scattering.In in vitro experiments,cell counting Kit-8(CCK-8)assay,flow cytometry,and Western blotting were used to validate the role of CeO2 NPs in preventing the apoptosis of pancreatic acinar cells.In in vivo experi-ments,C57BL/6 mice were divided into control group,AP group,AP+CeO2 group,SAP group,and SAP+CeO2 group to investigate the mechanism of action of CeO2 NPs in alleviating inflammation and oxidative stress in AP mice.Results:CeO2 NPs demonstrated rela-tively good stability and biocompatibility,with a particle size of(50±4)nm on TEM.In vitro experiments showed that CeO2 NPs sig-nificantly reduced the apoptosis of pancreatic acinar cells by alleviating lipid peroxidation and maintaining mitochondrial membrane potential.In vivo experiments showed that CeO2 NPs could reduce the serum levels of amylase,lipase,and inflammatory cytokines(in-terleukin-6 and tumor necrosis factor-α).This result might be related to the regulation of the IKK/P53/Bcl-2 pathway.CeO2 NPs re-duced the production of reactive oxygen species and enhanced anti-oxidant response by regulating the Nrf-2 signaling pathway.Con-clusion:CeO2 NPs exert anti-inflammatory and antioxidant effects by regulating the IκB kinase/tumor protein p53/B-cell lymphoma 2(IKK/P53/bcl-2)and nuclear factor erythroid 2-related(Nrf-2)signaling pathways,thereby showing promising potential for the treatment of AP.

Deflazacort,as a glucocorticoid medication,is conductive to improving motor function and muscle strength,delaying the loss of ambulation,enhancing pulmonary function,reducing the risk of scoliosis,slowing the progression of cardiomyopathy,and increasing survival rates in patients with Duchenne muscular dystrophy(DMD).In February 2017,the U.S.Food and Drug Administration(FDA)approved deflazacort for the treatment of DMD.In May 2024,deflazacort entered Peking Union Medical College Hospital for desig-nated use through the ＂ temporary import＂ pathway.This article provides an overview of deflazacort from the perspectives of its mechanism of action,pharmacokinetics,clinical efficacy,and adverse effects,aiming to offer a reference for its rational and safe application in clinical practice.

Objective To observe conventional ultrasound and contrast-enhanced ultrasound(CEUS)manifestations of Ewing sarcoma(ES)in children.Methods Fifteen children with pathologically confirmed ES were retrospectively collected.Conventional ultrasound and CEUS characteristics of lesions were analyzed.Results Among 15 cases,ES of bone(ESB)was found in 7 cases,while extraskeletal ES(EES)was observed in the other 8 cases.Solitary tumor was noticed in 14 cases,with a median maximum diameter of 7.50 cm,while multiple abdominal masses were found in 1 case.The tumors had irregular shapes and poorly defined boundaries,with medium echogenicity in 7 cases,low echogenicity in 6 cases,while in other 2 cases present as cystic-solid lesions.CDFI showed sparse blood flow in 11 cases,abundant or slightly abundant blood flow in 2 and 1 case,respectively,while no obvious blood flow was observed in 1 case.Rapid high enhancement and rapid washout were found in all 7 cases underwent CEUS,while patchy no-enhancement areas were detected in 4 cases.Conclusion Conventional ultrasonic manifestations of ES had certain specificities,which demonstrated a rapid enhancement and rapid washout pattern during CEUS and may be accompanied by necrosis.

Objective To investigate the relationship between the five-circuit and six-qi characteristics of birth dates and the prevalence of endometriosis(EMs).Methods Clinical data from 333 EMs patients treated at the Department of Reproductive Medicine,The First Affiliated Hospital of Henan University of Chinese Medicine between March 2022 and March 2025 were collected.Statistical analysis was performed on parameters of the five circuits and six qi of patients' birth dates.Results No statistically significant differences were found in the distribution of heavenly stems,dominant circuits,guest circuits,dominant qi,guest qi,joining of guest qi with dominant qi,or Sitian-Zaiquan among the 333 EMs patients(all P＞0.05).However,significant differences were observed in the distribution of earthly branches,yearly circuits,and circuit-qi combinations(P＜0.05 or P＜0.01).Specifically:(1)The most frequent earthly branch was the"Wei"year(12.3％,41/333);(2)The most common annual circuit was"deficient water circuit"(14.7％,49/333);(3)The predominant circuit-qi combination was"Tong Sui Hui"(23.1％,77/333).Conclusion The development of EMs is associated with specific five circuits and six qi characteristics at birth:(1)Earthly branch of"Wei"year;(2)Annual circuit of"deficient water circuit";(3)Circuit-qi combination of"Tong Sui Hui".These patterns suggest that congenital endowmentl deficiencies in the spleen and kidney systems may predispose individuals to EMs.

Objective: To investigate the potential therapeutic mechanisms of kaempferol , an active component in the traditional Chinese medicine gardenia , for lung cancer treatment using a network pharmacology approach . Methods: The main active ingredients and potential targets of Gardenia jasminoides were obtained through the Tra⁃ditional Chinese Medicine Pharmacology Database and Analysis Platform (TCMSP) , and combined with the lung cancer related target information collected from Gene Cards and OMIM databases , the intersection targets of Garde⁃nia jasminoides and lung cancer treatment were determined by drawing Venn diagrams . Further screening of core targets was conducted through PPI network analysis , and gene ontology (GO) function and Kyoto Encyclopedia of Genes and Genomes ( KEGG) pathway enrichment analysis were performed using the Metascape platform . Auto dock software was used to evaluate the binding affinity between the active ingredients of Gardenia jasminoides and target proteins . In terms of experiments , cell proliferation ability was evaluated through CCK⁃8 assay , cell migration and invasion ability were detected through cell scratch healing assay and Transwell assay , and the expression levels of epithelial mesenchymal transition ( EMT) protein and inflammatory factors were detected by Western blot and RT⁃qPCR . Results: The active ingredient kaempferol in Gardenia jasminoides exhibited significant binding ability invasion of lung cancer cells . The results of Western blot and RT⁃qPCR further confirmed that kaempferol could promote an increase in E ⁃cadherin , a decrease in N ⁃cadherin and Vimentin , and reduce the expression of inflam⁃matory factors . Conclusion The active ingredient of Gardenia jasminoides , kaempferol , inhibits the proliferation ,migration and invasion of lung cancer cells by targeting BCL⁃2 , while reversing EMT progression and suppressing the expression levels of inflammatory cytokines in lung cancer cells , thus preventing lung cancer progression .

Objective To investigate the impact of various health education intervention strategies on the proper use of personal respiratory protective equipment (RPE) among workers exposed to dust. Methods Dust-exposed workers were recruited from 60 selected enterprises in Guangdong Province using cluster random sampling method. They were randomly allocated to the control, low-intensity intervention, and high-intensity intervention groups, with 358, 346, and 371 workers in each group, respectively. Workers in the control group received no designed intervention. Workers in the low-intensity intervention group received traditional plus mobile health education on the proper use of RPE. Workers in the high-intensity intervention group received all components of the low-intensity intervention, supplemented with peer education. The intervention lasted for six months. RPE usage was compared among the three groups of workers before and after the intervention. Results Workers in the control, low-intensity intervention, and high-intensity intervention groups showed higher rates of both RPE wearing and correct RPE wearing after the intervention than before it within their respective groups (RPE wearing rate: 94.1% vs 99.2%, 95.7% vs 100.0%, 94.6% vs 100.0%, all P<0.01; correct RPE wearing rate: 66.8% vs 91.1%, 67.3% vs 95.7%, 66.6% vs 96.5%, all P<0.01). Post-intervention correct RPE wearing rates were highest in the high-intensity intervention group, followed by the low-intensity intervention group, and the control group, with the percentage of 96.50%, 95.66% and 91.06%, respectively (P<0.01). Binary logistic regression analysis result showed that different intervention strategies affected the correct use of personal RPE among dust-exposed workers after adjusting for gender, age, and other confounding factors (P<0.05). Compared with the control group, the rates of correct RPE use increased in the low-intensity intervention group and the high-intensity intervention group (odd ratio was 2.14 and 3.01; 95% confidence interval was 1.12 - 4.10 and 1.53 - 5.91, respectively). Conclusion The implementation of traditional plus mobile health education interventions on the proper use of RPE can promote correct RPE utilization among dust-exposed workers, and integrating peer education further enhances the intervention effectiveness.

High mobility group box 1 (HMGB1), when released extracellularly, plays a pivotal role in the development of spinal cord synapses and exacerbates autoimmune diseases within the central nervous system. In experimental autoimmune encephalomyelitis (EAE), a condition that models multiple sclerosis, the levels of extracellular HMGB1 and interleukin-33 (IL-33) have been found to be inversely correlated. However, the mechanism by which IL-33 deficiency enhances HMGB1 release during EAE remains elusive. Our study elucidates a potential signaling pathway whereby the absence of IL-33 leads to increased binding of P300/CBP-associated factor with HMGB1 in the nuclei of astrocytes, upregulating HMGB1 acetylation and promoting its release from astrocyte nuclei in the spinal cord of EAE mice. Conversely, the addition of IL-33 counteracts the TNF-α-induced increase in HMGB1 and acetylated HMGB1 levels in primary astrocytes. These findings underscore the potential of IL-33-associated signaling pathways as a therapeutic target for EAE treatment.
Animals ; Encephalomyelitis, Autoimmune, Experimental/metabolism* ; Astrocytes/metabolism* ; Interleukin-33/metabolism* ; HMGB1 Protein/metabolism* ; Acetylation ; Mice, Knockout ; Mice, Inbred C57BL ; p300-CBP Transcription Factors/metabolism* ; Mice ; Spinal Cord/metabolism* ; Cells, Cultured ; Female ; Signal Transduction