Objective To understand mosquito density, species composition, and seasonal variations around the Beijing Capital International Airport(BCIA)and provide scientific evidence for mosquito-borne disease prevention and control. Methods Meteorological data were collected from 2016 to 2022, and mosquito density was monitored at seven surveillance sites around the BCIA from May to October each year using CO2-baited mosquito traps to analyze the relationship between mosquito density and meteorological factors. Results In total,68 518 female mosquitoes were captured, with a mosquito density of 10.20 per light · hour. The dominant species was Culex pipiens pallens(73.90%), followed by Aedes albopictus(9.71%)and Ae. vexans(9.29%);the mosquito density was highest in 2016(14.8 per light·hour)and lowest in 2022(4.46 per light·hour). Significant statistical differences were observed in mosquito density among different species(F=18.118, P<0.05). The density of Cx. pipiens pallens and other mosquito species showed a mutually exclusive trend; the peak of mosquito density varied based on years and habitats, with significant statistical differences in mosquito density among different habitats(F=8.504, P<0.05). The highest mosquito density was observed near the Wenyu River(21.50 per light·hour), whereas the lowest was recorded at the BCIA construction site(2.44 per light· hour). The monthly average temperature(r=0.595), monthly average highest temperature(r=0.575), and monthly average lowest temperature(r=0.624)showed moderate positive correlations, whereas the monthly average air pressure(r=-0.484)showed a moderate negative correlation. The monthly average minimum temperature was included in the regression model(F=25.575, P<0.000), and the equation Y=1.029X4-8.181 was used. The monthly average air pressure 2 months prior(b=-2.418, β=-1.619, P<0.05)and the monthly average relative humidity(b=-0.739, β=-1.201, P<0.05)significantly negatively predicted the mosquito density. Notably, the regression equation used was y=2526.170+(-2.418)X9+(-0.739)X13. The exposure-response analysis revealed that the density of mosquitoes was not linearly related to the average monthly air pressure, rainfall, and duration of sunshine. Conclusions The dominant mosquito species around the BCIA was Cx. pipiens pallens, Ae. albopictus, and Ae. vexans. During the control of Cx. pipiens pallens, the impact on other mosquito species must also be considered. Environmental management, breeding sites, and scientific use of pesticides should be prioritized based on the activity periods of mosquitoes. Further studies on mosquitoes and meteorological factors should be conducted to provide references and novel avenues for mosquito control.

AIM:This study aims to explore the role of asprosin(ASP)in regulating hepatic lipid anabolic metabolism,as well as the effects of ASP and its downstream pathways on hepatic lipid anabolic metabolism under obesity and exercise intervention.METHODS:To explore the effect of ASP on liver lipid synthesis under physiological condi-tion,5-week-old male C57BL/6J were randomly divided into 4 groups:wild-type(WT)group,WT+ASP group,knockout(KO)group,and KO+ASP group.The mice in KO and KO+ASP groups were ASP gene heterozygous KO mice,and the re-combinant ASP protein was intraperitoneally injected into the mice in WT+ASP and KO+ASP groups for one month before sampling.To explore the role of ASP on liver lipid synthesis under obesity and exercise intervention,5-week-old male C57BL/6J mice were randomly divided into 3 groups:normal control(NC)group,high-fat diet(HFD)group,and HFD+exercise group.After 10 weeks of HFD feeding,the mice in HFD group received no intervention,while those in HFD+ex-ercise group underwent 8 weeks of treadmill exercise intervention.The mice in both groups were fed with HFD during the intervention period.After the interventions,liver tissues were collected from the mice.Western blot and RT-qPCR meth-ods were used to detect the expression levels of ASP,fibroblast growth factor 21(FGF21),nuclear factor E2-related factor 2(NRF2),stearoyl-coenzyme A desaturase 1(SCD1)and fatty acid synthase(FASN)in the mouse liver.ELISA was used to detect the triglycerol(TG)and cyclic adenosine monophosphate(cAMP)levels in the mouse liver,and HE stain-ing and oil red O staining were performed to observe the morphological changes of mouse liver tissues.RESULTS:(1)Compared with WT mice,KO mice exhibited significantly reduced body weight and liver weight,while liver index and he-patic TG levels were significantly increased.The mRNA and protein levels of cAMP,ASP,FGF21 and NRF2 in the liver were significantly decreased,whereas the mRNA and protein levels of SCD1 and FASN were significantly increased.In the WT+ASP group,liver index and hepatic TG levels were significantly reduced,but there were no statistical differences in body weight and liver weight.The mRNA and protein levels of SCD1 and FASN in the liver were significantly de-creased,while the cAMP level and the mRNA and protein levels of NRF2 were significantly increased.The FGF21 mRNA level decreased,but the protein level increased.(2)Compared with KO mice,KO+ASP mice had significantly reduced hepatic TG level,with a certain degree of reduction in liver weight and liver index,but without statistical significance.The cAMP level and the mRNA and protein levels of ASP,FGF21 and NRF2 in the liver were significantly increased,while the mRNA and protein levels of SCD1 and FASN were significantly decreased.(3)Compared with NC mice,HFD mice showed increased body weight,liver weight,and hepatic TG level.The cAMP level and the mRNA and protein levels of NRF2 in the liver were significantly decreased,while the mRNA and protein levels of SCD1 and FASN were significant-ly increased.The FGF21 mRNA level increased,but its protein level decreased.The ASP mRNA level decreased,but its protein level increased.(4)Compared with HFD mice,HFD+exercise mice had significantly reduced body weight,liver weight,and hepatic TG level.The mRNA and protein levels of SCD1 and FASN in the liver were significantly decreased,while the cAMP level and the mRNA and protein levels of NRF2 were significantly increased.The FGF21 mRNA level de-creased,but its protein level increased.The ASP mRNA level increased,but its protein level decreased.CONCLU-SION:(1)The ASP exerts an inhibitory effect on hepatic lipogenesis through the cAMP/FGF21/NRF2 pathway.(2)Un-der HFD feeding condition,the protein expression of FGF21 decreases,leading to our speculation that ASP may develop resistance.Aerobic exercise intervention can attenuate ASP resistance under high-fat condition and alleviate hepatic lipid accumulation caused by HFD.

Objective:To explore the effects of essential tremor(ET)on the mitochondrial morphology of GABAer-gic and glutamatergic neurons in the inferior olive(IO).Methods:The ET mouse model was established via intraper-itoneal injection of harmaline.Twelve 8-week-old male C57BL/6J mice were randomly divided into saline control group and harmaline treatment group(HA).Behavioral tests,including open field test,rotarod test,balance beam test,and tremor scoring,were conducted to assess the behavior of mice.Using genetic engineering technology and the CRISPR/Cas9 system,we designed and generated 6 male GAD2-Mito-GFP mice and 6 male VGLUT2-Mito-GFP mice,all being 8-week-old.The mice of each transgenic line were randomly divided into Control and HA group.Immunofluorescence staining was used to analyze the expression of c-FOS positive cells in the IO of both the Control and HA groups,and to classify different types of neurons.Mitochondrial network analysis(MiNA)was performed to quantitatively analyze the area,mean aspect ratio,branch length,and other of mitochondria in different types of neurons in the IO under ET con-ditions.Results:Compared to the Control group,the HA group exhibited motor abnormalities and significant tremors.Immunofluorescence results showed a significant increase in the number of c-FOS positive cells in the IO,primarily in GABAergic neurons.MiNA results revealed that the mitochondria of GABAergic neurons showed increased area,branch length diameter,demonstrating irregular morphology.Conclusion:ET induces activation of GABAergic neurons in the IO and leads to more prominent mitochondrial morphological changes.This provides a new perspective for further inves-tigation of the pathogenesis of essential tremor and its relationship with mitochondrial.

Acute kidney injury (AKI) has high morbidity and mortality, but effective clinical drugs and management are lacking. Previous studies have suggested that macrophages play a crucial role in the inflammatory response to AKI and may serve as potential therapeutic targets. Emerging evidence has highlighted the importance of forkhead box protein O1 (FoxO1) in mediating macrophage activation and polarization in various diseases, but the specific mechanisms by which FoxO1 regulates macrophages during AKI remain unclear. The present study aimed to investigate the role of FoxO1 in macrophages in the pathogenesis of AKI. We observed a significant upregulation of FoxO1 in kidney macrophages following ischemia-reperfusion (I/R) injury. Additionally, our findings demonstrated that the administration of FoxO1 inhibitor AS1842856-encapsulated liposome (AS-Lipo), mainly acting on macrophages, effectively mitigated renal injury induced by I/R injury in mice. By generating myeloid-specific FoxO1-knockout mice, we further observed that the deficiency of FoxO1 in myeloid cells protected against I/R injury-induced AKI. Furthermore, our study provided evidence of FoxO1's pivotal role in macrophage chemotaxis, inflammation, and migration. Moreover, the impact of FoxO1 on the regulation of macrophage migration was mediated through RhoA guanine nucleotide exchange factor 1 (ARHGEF1), indicating that ARHGEF1 may serve as a potential intermediary between FoxO1 and the activity of the RhoA pathway. Consequently, our findings propose that FoxO1 plays a crucial role as a mediator and biomarker in the context of AKI. Targeting macrophage FoxO1 pharmacologically could potentially offer a promising therapeutic approach for AKI.

Sophorae Flavescentis Radix is one of the commonly used traditional Chinese medicine in China, and a large amount of pharmaceutical residue generated during its processing and production is discarded as waste, which not only wastes resources but also pollutes the environment. Therefore, elucidating the chemical composition of the residue of Sophorae Flavescentis Radix and the differences between the residue and Sophorae Flavescentis Radix itself is of great significance for the comprehensive utilization of the residue. This study, based on ultra-performance liquid chromatography-quadrupole time-of-flight mass spectrometry(UPLC-Q-TOF-MS) technology combined with multivariate statistical methods, provides a thorough characterization, identification, and differential analysis of the overall components of Sophorae Flavescentis Radix and its residue. Firstly, 61 compounds in Sophorae Flavescentis Radix were rapidly identified based on their precise molecular weight, fragment ions, and compound abundance, using a self-constructed compound database. Among them, 41 compounds were found in the residue, mainly alkaloids and flavonoids. Secondly, through principal component analysis(PCA) and orthogonal partial least squares discriminant analysis(OPLS-DA), 15 key compounds differentiating Sophorae Flavescentis Radix from its residue were identified. These included highly polar alkaloids, such as oxymatrine and oxysophocarpine, which showed significantly reduced content in the residue, and less polar flavonoids, such as kurarinone and kuraridin, which were more abundant in the residue. In summary, this paper clarifies the overall composition, structure, and content differences between Sophorae Flavescentis Radix and its residue, suggesting that the residue of Sophorae Flavescentis Radix can be used as a raw material for the extraction of its high-activity components, with promising potential for development and application in cosmetics and daily care. This research provides a scientific basis for the future comprehensive utilization of Sophorae Flavescentis Radix and its residue.
Drugs, Chinese Herbal/chemistry* ; Chromatography, High Pressure Liquid/methods* ; Mass Spectrometry/methods* ; Sophora/chemistry* ; Flavonoids/chemistry* ; Alkaloids/chemistry*

Objective To investigate the expression levels of peroxisome proliferator-activated receptor gamma coactivator-1β(PGC-1β),hypoxia-inducible factor-1α(HIF-1α),and resistin(RETN)in gouty arthri-tis(GA),and analyze their correlation with the degree of joint damage.Methods A total of 134 patients with GA in the hospital from January 2022 to October 2023 were selected as GA group,and 134 healthy people who underwent the physical examination in the same period were selected as control group.The serum expression levels of PGC-1β,HIF-1α and Retn were compared between the two groups.The expression levels of PGC-1β,HIF-1α and Retn in serum and synovial fluid of patients with different clinical characteristics in GA group were compared,the degree of joint destruction was graded according to the subjective pain grading method(VAS)and the patients were divided into a severe GA subgroup of 78 cases and a mild GA subgroup of 56 ca-ses.The expression levels of PGC-1β,HIF-1α,RETN,bone destruction factors[β-cross linked degradation products(β-CTX),tartrate resistant acid phosphatase-5b(TRACP5b),receptor activator of nuclear factor kappa B ligand(RANKL)]and inflammatory factors[tumor necrosis factor-α(TNF-α),interleukin-1β(IL-1β)]were compared among different degrees of joint destruction,and the correlation between serum and syno-vial fluid PGC-1β,HIF-1α,RETN and the degree of joint destruction,bone destruction factors,and inflamma-tory factors was analyzed.Results The expression level of PGC-1β in serum of GA group was lower than that of the control group,while the expression levels of HIF-1α and RETN in serum were higher than those of the control group(P＜0.05).There were statistically significant differences in serum and synovial fluid PGC-1β,HIF-1α,and RETN levels among GA patients with different clinical stages,affected joints,disease duration,and annual seizure frequency(P＜0.05).The expression levels of PGC-1β in the serum and synovial fluid of the severe GA subgroup were lower than those of the mild GA subgroup(P＜0.05),while the expression lev-els of HIF-1α and RETN were higher than those of the mild GA subgroup(P＜0.05).The expression levels ofβ-CTX and TRACP5b in the severe GA subgroup were higher than those in the mild GA subgroup(P＜0.05),while the expression level of RANKL was lower than that in the mild GA subgroup(P＜0.05).PGC-1βin serum and synovial fluid was negatively correlated with the degree of joint destruction,β-CTX,TRACP5b,TNF-α,and IL-1β,and positively correlated with RANKL.HIF-1α and RETN were positively correlated with the degree of joint destruction,β-CTX,TRACP5b,TNF-α,and IL-1β,and negatively correlated with RANKL.Conclusion PGC-1β,HIF-1α,and RETN are abnormally expressed in patients with GA,and are closely associ-ated with the degree of joint destruction,bone destruction factors,and inflammatory factors.They are expec-ted to become reliable indicators for evaluating the occurrence and progression of GA.

Background: Intradermal microdroplet injections of botulinum toxin type-A (BoNT/A) effectively ameliorate rosacea-related angiogenesis, but the mechanism remains unclear. Objective: To explore the anti-angiogenesis of BoNT/A in the rosacea-like mouse model and to measure the secretion of vascular endothelial growth factor (VEGF) by mast cells. Methods: A rosacea-like mouse model was induced by LL37 in both Mas-related G-proteincoupled receptor B2 conditional knockout (MrgprB2 −/− ) mice and wild-type (WT) mice, then treated with BoNT/A and/or Apatinib. The abundance of endothelial cells and mast cells in mouse skin was determined using dual immunofluorescence staining. The VEGF levels in supernatants and cell lysates of laboratory of allergic disease 2 (LAD2) mast cells were assessed using reverse transcription quantitative polymerase chain reaction, western blots, and enzyme-linked immunosorbent assay. The effect of conditioned medium (CM) collected from LAD2 on human umbilical vein endothelial cells (HUVECs) was determined using tube formation assays. The number of proliferative cells was confirmed using the 5-ethynyl-2’-deoxyuridine incorporation assays.The effect of BoNT/A on the internalization of Mas-related G-protein-coupled receptor X2 (MRGPRX2) was detected using flow cytometry and immunofluorescence staining. Results: LL37-induced rosacea-like skin manifestations were significantly alleviated in MrgprB2 −/− mice compared to WT controls. BoNT/A mitigated the LL37-induced secretion of VEGF by LAD2. The CM from BoNT/A-treated LAD2 inhibited HUVEC proliferation and tube formation. The LAD2 cells co-treated with LL37 and BoNT/A exhibited dramatically enhanced MRGPRX2 internalization. Conclusion BoNT/A enhances LL37-mediated MRGPRX2 internalization in mast cells, thereby reducing VEGF secretion and neovascularization and improving facial flushing symptom in rosacea.

Objective:To explore the effects of essential tremor(ET)on the mitochondrial morphology of GABAer-gic and glutamatergic neurons in the inferior olive(IO).Methods:The ET mouse model was established via intraper-itoneal injection of harmaline.Twelve 8-week-old male C57BL/6J mice were randomly divided into saline control group and harmaline treatment group(HA).Behavioral tests,including open field test,rotarod test,balance beam test,and tremor scoring,were conducted to assess the behavior of mice.Using genetic engineering technology and the CRISPR/Cas9 system,we designed and generated 6 male GAD2-Mito-GFP mice and 6 male VGLUT2-Mito-GFP mice,all being 8-week-old.The mice of each transgenic line were randomly divided into Control and HA group.Immunofluorescence staining was used to analyze the expression of c-FOS positive cells in the IO of both the Control and HA groups,and to classify different types of neurons.Mitochondrial network analysis(MiNA)was performed to quantitatively analyze the area,mean aspect ratio,branch length,and other of mitochondria in different types of neurons in the IO under ET con-ditions.Results:Compared to the Control group,the HA group exhibited motor abnormalities and significant tremors.Immunofluorescence results showed a significant increase in the number of c-FOS positive cells in the IO,primarily in GABAergic neurons.MiNA results revealed that the mitochondria of GABAergic neurons showed increased area,branch length diameter,demonstrating irregular morphology.Conclusion:ET induces activation of GABAergic neurons in the IO and leads to more prominent mitochondrial morphological changes.This provides a new perspective for further inves-tigation of the pathogenesis of essential tremor and its relationship with mitochondrial.

This paper summarizes the progress of theoretical research and practice of One Health in China,and discusses the paradigm of One Health governance to improve the prevention and control of infectious diseases in China and the world,and provide an example for the improvement of the public health system.In particular,China has long history to apply the concept of One Health in the national schistosomiasis control programmes and patriotic health campaigns,which were not only focusing on human health,but also emphasizing the sustainable development of animal health and ecological environment.At the same time,the application of tools such as system dynamics model,eDNA technology,One Health economic assessment and global One Health index(GOHI)in the field of disease control and environmental health provides technical support for the concept of One Health.Despite the challenges of practical application of these tools,the One Health concept will play a greater role in providing sustainable solutions for human-animal-environmental health by strengthening interdisciplinary collaboration,improving standardization protocols and promoting inter-national cooperation.

Objective To investigate the effect of cannulated screw internal fixation via a small incision sinus tarsi approach on calcaneal related angles in patients with calcaneal fractures.Methods A total of 107 patients with calcaneal fractures who were treated in our hospital from June 2020 to July 2023 were selected,and they were divided into the group A(n=56,underwent lateral L-shaped approach combined with steel plate internal fixation) and group B (n=51,underwent cannulated screw internal fixation via a small incision sinus tarsi approach). The Bohler angle,Gissane angle,calcaneal width,calcaneal height,American Orthopaedic Foot and Ankle Association (AOFAS) Maryland foot function score,and visual analogue scale (VAS) score before and after surgery were compared between the two groups. The correlations between the imaging data before and after surgery,their correlation with the AOFAS Maryland foot function score and VAS score,and the correlations between the difference in imaging indexes before and after surgery and the improvement rates of Maryland foot function score and VAS score were analyzed by Pearson method. Results The Bohler angle,Gissane angle,calcaneal width,and calcaneal height after surgery in both groups were significantly improved compared with those before surgery (P<0.05). The group B had smaller Bohler angle 1 month after surgery,and greater Bohler angle 3 months and 6 months after surgery,and Gissane angle and calcaneal width 3 months after surgery compared with those in group A (P<0.05). At 1,3,and 6 months after surgery,the VAS scores of both groups were significantly reduced compared with those before surgery (P<0.05),while the Maryland foot function scores were significantly increased compared with those before surgery (P<0.05). The Maryland foot function scores and VAS scores 1,3,and 6 months after surgery of the group B were significantly better than those of the group A(P<0.05). The Bohler angle,calcaneal width,Gissane angle,and calcaneal height were all correlated before and after surgery (P<0.05);before surgery,the calcaneal width and height were not correlated with the Maryland foot function score or VAS score (P>0.05),while the Bohler angle and Gissane angle were correlated with the Maryland foot function score and VAS score (P<0.05);after surgery,the Bohler angle,calcaneal width,Gissane angle,and calcaneal height were all correlated with the Maryland foot function score and VAS score (P<0.05). The differences in Bohler angle,Gissane angle,calcaneal width,and calcaneal height before and after surgery were correlated with the improvement rates of Maryland foot function score and VAS score (P<0.05). Conclusion The Bohler angle,Gissane angle,and calcaneal height all increase,while the calcaneal width decrease after treated with cannulated screw internal fixation via a small incision sinus tarsi approach in calcaneal fractures,which has better therapeutic effect than that of lateral L-shaped approach combined with steel plate internal fixation. The changes in the Bohler angle,Gissane angle,calcaneal width,and calcaneal height are correlated with the clinical efficacy.