Diabetic nephropathy (DN), as one of the most common complications of diabetes, is a primary cause of end-stage renal disease. The pathogenesis of DN encompasses processes such as chronic inflammation, recruitment and activation of immune cells, tubular and glomerular injury, and renal fibrosis. These processes are highly correlated with the activation of the nucleotide-binding oligomerization domain-like receptor pyrin domain containing 3 (NLRP3) inflammasome and the resulting pyroptosis it mediates. Previous studies have shown that the release of pro-inflammatory cytokines, leakage of damage-associated molecular patterns (DAMPs), recruitment and activation of immune cells can be reduced by regulating the NLRP3 inflammasome and its mediated pyroptosis, thereby slowing the diffusion of inflammatory responses in adjacentcells, fibrosis, and tissue remodeling processes. Ultimately, these process can improve renal injury and dysfunction caused by diabetic nephropathy. This article summarizes the molecular regulatory mechanisms of the NLRP3 inflammasome and its mediated pyroptosis at different pathological stages of DN, proposes potential targets for regulating their activation, aiming to provide a new direction for personalized treatment of DN.

Objective: To investigate the mechanism by which serum amyloid P component (SAP) alleviates periodontitis in mice, providing an experimental basis to establish SAP as a novel therapeutic agent for periodontitis. Methods: Ethical approval was obtained from the Institutional Animal Ethics Committee. Periodontitis models were established in wild-type (WT) mice and SAP-transgenic (SAP-Tg) mice, divided into four groups: WT control (WT group), WT periodontitis (WT+P group), SAP-Tg control (Tg group), and SAP-Tg periodontitis (Tg+P group). On day 7, the mice were euthanized, and periodontal tissues, teeth, and alveolar bone were collected. SAP protein expression was detected by enzyme-linked immunosorbent assay (ELISA). Micro-CT and HE staining were used to measure alveolar bone resorption (distance from the cementoenamel junction to the alveolar bone crest). Tartrate-resistant acid phosphatase (TRAP) staining was performed to assess osteoclast number, and immunohistochemistry (IHC) was employed to evaluate macrophage infiltration. The expression levels of inflammatory cytokines including interleukin-1β (IL-1β), interleukin-6 (IL-6), and tumor necrosis factor-α (TNF-α) were measured by qRT-PCR. Oral microorganism composition was analyzed using 16S ribosomal RNA (16S rRNA) gene sequencing. Additionally, macrophages from WT and SAP-Tg mice were isolated to establish an in vitro inflammation model, divided into WT+LPS and Tg+LPS groups. The expression of macrophage polarization-related genes including inducible nitric oxide synthase (iNOS), CD86, CD163, and CD206) were assessed by qRT-PCR. After the induction of osteoclast differentiation, TRAP staining was performed. Results: ELISA results demonstrated that periodontal tissues from Tg+P group mice exhibited higher levels of SAP expression compared to the WT+P group. Micro-CT and HE staining analyses revealed that the Tg+P group showed reduced alveolar bone resorption, indicated by a shorter distance between the cementoenamel junction and alveolar bone crest, compared to the WT+P group. Furthermore, TRAP staining results indicated a decrease in osteoclast numbers in the Tg+P group compared to the WT+P group. IHC and qRT-PCR results indicated reduced macrophage infiltration and decreased expression of IL-1β, IL-6, and TNF-α in the Tg+P group. Oral microorganism sequencing showed no significant difference in periodontitis-associated pathogenic bacteria between WT+P and Tg+P groups. In vitro experiments demonstrated that compared to the WT+LPS group, the Tg+LPS group exhibited downregulated M1 macrophage markers (iNOS and CD86) and upregulated M2 macrophage markers (CD163 and CD206). TRAP staining confirmed fewer osteoclasts in the Tg+LPS group. Conclusion SAP overexpression effectively alleviates periodontitis severity in mice by inhibiting M1 macrophage polarization, reducing pro-inflammatory cytokine expression, and suppressing osteoclast differentiation, thereby attenuating alveolar bone resorption.

Acute liver failure (ALF) is lack of broadly approved therapeutic strategy except liver transplantation. As a glycogen metabolic intermediate, UDP-glucose (UDP-G) has been considered to accelerate liver repairment. Nevertheless, the role of UDP-G and its receptor P2Y purinoceptor 14 (P2Y₁₄R) in ALF remains unknown. The present study aims to investigate the role and underlying mechanisms of UDP-G/P2Y₁₄R axis in ALF. In this study, hepatic P2Y₁₄R is significantly increased in TAA-induced and partial hepatectomy-induced ALF, while knockout of whole-body P2Y₁₄R aggravates liver failure, manifested by inhibiting β-Catenin-mediated liver regeneration. Consistently, P2Y₁₄R deficiency exhibits impaired liver regeneration in mice suffer partial hepatectomy. Importantly, only hepatocellular specific deletion of P2Y₁₄R (P2Y₁₄R ^flox/flox Alb ^cre/+ ) mice shows a similar phenomenon, rather than stellate cell specific deletion of P2Y₁₄R (P2Y₁₄R ^flox/flox Lrat ^cre/+ ) mice. Mechanistically, P2Y₁₄R induction regulates methylation of Dact-2 through CREB/DNMT3b signals in hepatocytes, subsequently inhibiting the expression of Dact-2 which is a stabilizer of β-Catenin degradation complex, leading to the activation of β-Catenin -mediated liver regeneration. Interestingly, the administration of exogenous UDP-G can accelerate liver regeneration and liver function recovery after partial hepatectomy in hepatocellular carcinoma mice. Together, the findings propose an unrecognized role of P2Y₁₄R in ALF and provide an effective adjuvant strategy for treatment of ALF.

Abstract Spinal curvatures has emerged as the third major chronic condition seriously threatening the physical and mental health of Chinese children and adolescents, with significant regional differences. Its etiology is complex and diverse, and early prevention and treatment are feasible, whereas treatment in later stages entails considerable difficulty and economic burden. Currently, the prevention and control of student spinal curvatures has been elevated to a national health strategy. A series of policy documents have been successively issued, and it has greatly facilitated the institutionalization and normalization of national routine screening for student spinal curvatures. However, it is still inadequate considering current prevention and control system for spinal curvatures in children and adolescents. There is an urgent need to establish a closed loop model based on China s institutional advantages, comprising Initial Screening-Diagnosis-Treatment-Preventive Control-Followup Assessment, to strengthen the safeguarding of spinal health in children and adolescents.

AIM: To compare the effect of small-incision lenticule extraction(SMILE)with different corneal cap thicknesses on postoperative astigmatism and short-term visual quality of patients with myopic astigmatism.METHODS: A total of 54 patients(108 eyes)with myopic astigmatism who underwent SMILE from June 2020 to June 2022 in our hospital were selected for the prospective controlled study, and patients were randomly assigned into two groups, with 27 cases(54 eyes)each. The corneal cap thickness design was 110 μm for the group A and 120 μm for the group B, while other operation parameters were consistent. Additionally, the uncorrected visual acuity(UCVA), spherical equivalent(SE), stiffness parameter A1(SP-A1), visual quality and vector parameters at baseline, 1 d,1 wk and 1 mo after surgery were compared between two groups.RESULTS: There was a statistically significant difference in UCVA, SE, and SP-A1 between the two groups at various time points before and after surgery(all P<0.05), and UCVA in the group A was better than that in the group B at 1 d after surgery(P<0.05). There was no statistically significant difference in the results of astigmatism vector analysis between the two groups of patients(both P>0.05). The objective scattering index(OSI)of the group A was lower than that of the group B, while Strehl ratio(SR)of the group A was higher than that of the group B at 1 d after surgery(both P<0.05). There was no significant difference in modulation transfer function cutoff frequency(MTF cut off), contrast vision, visual symptoms and overall satisfaction, postoperative complications between the two groups(all P>0.05).CONCLUSION: SMILE procedures with both 110 μm and 120 μm corneal cap thicknesses are safe and effective in correcting myopic astigmatism without affecting postoperative SE, astigmatism, SP-A1 or contrast visual acuity. Whereas 110 μm corneal cap thickness results in faster early postoperative visual recovery and better early visual quality than 120 μm.

OBJECTIVE To screen the prescription and preparation method of Bupleurum nanoemulsion, and evaluate its quality, study the antipyretic effect. METHODS The emulsifier and co-emulsifier of the nanoemulsion were preliminarily screened, and then the prescription was screened by pseudo-ternary phase diagram. The quality evaluation of the appearance, particle size distribution, structure type, stability and content of the prepared Bupleurum nanoemulsion was performed. Wistar rats were further randomly divided into blank control group, model control group, positive control group(aspirin group), Bupleurum nanoemulsion high-dose, medium-dose and low-dose groups(18.00, 9.00, 3.00 g·kg−1). Except for the blank control group, the pathological model of fever rats was prepared in the other groups. According to the scheduled experimental requirements, rats in each group were given the corresponding drugs. And the temperature changes of rats in each group were recorded at 0.5, 1, 1.5, 2, 3 h to observe the antipyretic effect of Bupleurum nanoemulsion. RESULTS The best prescription of Bupleurum nanoemulsion: Tween-80 6 g and n-butanol 3 g, Bupleurum extract dissolved in pure water as water phase 20 mL, Bupleurum oil as oil phase 2 g. At room temperature, the Bupleurum nanoemulsion was a yellow-brown clear and transparent liquid, O/W nanoemulsion, with an average particle size of (77.21±3.66)nm, polydispersity index of 0.28±0.04, Zeta potential of (–18.81±1.42)mV, and saikosaponin content of 3.071 mg·mL−1, with good stability. In animal experiments, compared with the model control group, the rectal temperature of aspirin group and Bupleurum nanoemulsion high-dose group was significantly lower after the first administration(P<0.01), the rectal temperature of Bupleurum nanoemulsion middle-dose group was significantly lower after the first administration 2, 3 h(P<0.01). CONCLUSION The Bupleurum nanoemulsion is transparent and stable, and it has good antipyretic effect on fever rat model.

Objective To investigate the feasibility of leucocyte-reduced pooled platelet concentrates from whole blood stored at 4℃,and provide theoretical basis for the components preparation.Methods The collected 400 mL ACD-B antico-agulant whole blood was randomly divided into two groups,stored at 4℃and room temperature.The buffy coat was prepared within 6 hours and store at 22℃until next day to prepare leucocyte-reduced pooled platelet concentrates.Platelet samples on day 1,3,5 and 7 were taken for the blood cell count and related parameter detection.The pH,glucose and lactic acid con-tent were determined to reflect the metabolic status,and the thromboelastography,platelet aggregation rate and PAC-1 and CD62P expression were determined to reflect the function and activation of platelets.The difference in platelets between two groups were analyzed.Results With the extension of storage time,the count of leucocyte-reduced pooled platelet concen-trates decreased gradually,but the platelets distribution width(PDW),mean platelet volume(MPV)and platelet-larger cell ratio(P-LCR)increased gradually in two groups,with no statistical significance(P＞0.05).The pH and glucose con-tents in two groups gradually decreased,but the lactic acid content gradually increased,with no significant difference(P＞0.05).The thrombelastogram showed MA value that reflecting platelet function has no significant change during the storage,and there was no significant difference between the two groups(P＞0.05).The aggregation rates decreased while the expres-sion of PAC-1 and CD62P increased gradually with the prolongation of preservation time,with no significant difference be-tween the two groups(P＞0.05).Conclusion There is no significant difference in platelet count,function and activation between whole blood stored at 4℃and at room temperature within 6 hours.Whole blood stored at 4℃within 6 hours can be considered as the raw material for leucocyte-reduced pooled platelet concentrates.

Objective To investigate the mechanism of Yes-associated protein 1(YAP1)ameliorating aristolochic acid 1(AAI)-induced liver injury in mice based on untargeted metabolomics techniques.Methods There were 83-week-old male hepatocyte-specific Yap1 gene knockout mice(genotyped as Yap1Flox/Flox,Albumin-Cre,aka.Yap1LKO)were randomly selected as the Yap1LKO+AAI group,and 8 Yap1Flox control mice as the Yap1Flox+AAI group.Both groups were injected intraperitoneally with AAI at a dose of 2.5 mg·kg-1·d-1 for 14 consecutive days.Genotypes were identified by tail PCR;serum alanine transaminase(ALT)and aspartate transaminase(AST)activities were determined by microplate assay;histopathological changes of liver tissue were observed by HE staining;and the protein expression of YAP1 in liver tissue was determined by immunohistochemistry.The untargeted metabolomics approach was used to analyze the liver tissue differential metabolites,and the samples were analyzed by ultra performance liquid chromatography-quadrupole-electrostatic field orbit trap high-resolution mass spectrometry,and the differential metabolites were screened by principal component analysis(PCA),Partial least square-discriminant analysis(PLS-DA),and orthogonal partial least squares-discriminant analysis(OPLS-DA);using HMDB database and METLIN database to identify metabolites,and the pathway enrichment of differential metabolites was analyzed by KEGG database.Results(1)After 14 days of AAI induction,the increase of body mass in Yap1LKO mice was lower than that in Yap1Flox mice,but there was no statistical significance(P＞0.05).On day 14,compared with the Yap1Flox+AAI group,the serum ALT and AST enzyme activities in the Yap1LKO+AAI group of mice were significantly increased(P＜0.05),and the histopathological damage of the liver was significantly aggravated.The livers of the Yap1Flox mice had a positive protein expression of YAP1,whereas the Yap1LKO mice did not have a positive protein expression of YAP1.(2)A total of 139 differential metabolites with significant changes(VIP＞1 and P＜0.05)were screened by metabonomic analysis;compared with Yap1LKO+ AAI group,62 liver metabolites in Yap1Flox+AAI group were up-regulated,including choline,taurine,hypotaurine,α-linolenic acid,eleostearic acid,chenodeoxycholic acid and so on.Seventy-seven metabolites were down-regulated including glycerophosphocholine,L-phosphatidylcholine,L-glutamine,L-serine,L-glutathione,5-methionine,phenylalanine,glucose 6-phosphate,lactic acid,uric acid glycosides,etc..KEGG-enriched pathways were mainly choline metabolism,glycerophospholipid metabolism,insulin resistance,glutathione metabolism,etc..Conclusion Hepatocyte-specific Yap1 gene knockout exacerbated AAI-induced liver injury in mice,and YAP1 was involved in the regulation of choline metabolism and glycerophospholipid metabolism through the up-regulation of unsaturated fatty acids,such as choline and taurine,which ameliorated AAI-induced liver injury in mice.

Objective: To explore the current status and progress of regional school health work to provide policy reference for school health improvement. Methods: Survey data on school health work in Tianjin from 2019, 2021 and 2023 was used. School health staff allocation and expenditure of the health administrative department, CDC and education department, as well as the annual implementation of health education, prevention and control of common diseases and infectious diseases, sports activities and food nutrition in primary and secondary schools were analyzed. Statistical analysis was conducted using KruskalWallis test, Chisquare test, and Fishers exact test. Results: The number of school health staff in the health commissions and education departments from 2019, 2021 and 2023 was relatively stable. Parttime staffs were often employed by health commissions while fulltime staffs were mainly employed by education departments. The number of school health staff at CDCs increased gradually (H=12.65, P<0.01). School health expenditure of administrative departments and schools in 2021 and 2023 increased significantly compared with that in 2019 (H=22.28, 23.75, P<0.05). More than 95% of schools set up clinics or health care rooms, and about 97% of schools had school health technicians or health teachers. More than 90% of schools had health education courses over 4 hours per semester. The rate of mental health education increased by year (86.87%, 89.91%, 96.30%, Z=2.40，P<0.05). Lack of courses regarded safety emergency and risk avoidance, growth and development, and adolescent health education. The provision rate of psychological counseling services (89.00%, 97.25%, 100.00%) and psychological problem prevention and control (56.12%, 71.56%, 81.48%) also increased by year (Z=3.83, 3.96, P<0.01). The implementation rates of prevention and control of poor vision, dental caries, overweight and obesity were all higher than 80%, and the prevention and control rate of abnormal spinal curvature showed an increasing trend (38.78%, 77.06%, 72.22%, Z=4.87, P<0.01). More than 90% of schools met the standard for physical education class hours, and the proportion of schools conducting at least 30 minutes of recess physical activities every day increased year by year (65.00%, 80.73%, 85.98%, Z=3.59, P<0.01). All schools did not have shops. Conclusions School health work in Tianjin is effective and constantly developing. It is necessary to continue to increase the investment of human resources and expenditure in school health, explore the approaches of cooccurrence and prevention of common diseases, and improve the school sports and nutrition environment.