Sweat pore serves as the central regulator for ascending， descending， exiting and entering of qi movement， the circulation of essence， blood， and body fluids， and the nourishment of zang-fu organs. Its proper function depends on maintaining smooth flow and avoiding stagnation. Cough variant asthma （CVA）， in traditional Chinese medicine， falls under the "wind cough" category. The dysfunction of sweat pores' opening， closing， ascending， and descending is integral to the pathogenesis of CVA. This article focused on the dynamic changes in sweat pores' dysfunction throughout the progression of CVA， categorized into three stages，i.e. loss of pivot function， blockage of sweat pores， and lack of nourishment. The treatment approach centers on "wind medicinal opening sweat pores"， so for the initial stage， the focus is on activating sweat pores and dispelling wind， diffusing the lungs and rectifying qi； for the progression stage， the strategy shifts to unblocking sweat pores and dispersing wind， clearing lung stagnation and resolving obstructions； for the resolution stage， the emphasis is on nourishing sweat pores and defending against wind， strengthening the lungs and consolidating the body's foundation. This approach provides a systematic approach to the clinical diagnosis and treatment of CVA.

An ideal dermal filler should integrate filling, repair, and anti-aging effects, with immediate tissue augmentation, slow degradation, and progressive stimulation of collagen regeneration. However, commonly used hyaluronic acid (HA) hydrogels, while effective for rapid filling, suffer from limited duration of support, weak cell adhesion, and an inability to promote collagen regeneration. Silk fibroin (SF), a natural protein from silkworm cocoons, is known for its excellent cell adhesion and collagen-stimulating abilities. However, its limited gelation capability restricts its potential application as a standalone injectable hydrogel. Based on a complementary strategy, this study combines the rapid gelling properties of HA with the collagen regenerative properties of SF to create a co-crosslinked HA-SF hydrogel. The composite hydrogel merges HA's rapid filling effect with SF's strong tissue adhesion and collagen-stimulating abilities. The formulation, physicochemical properties, degradation, biocompatibility, and filling effects of the HA-SF hydrogel were systematically investigated. HA-SF hydrogel exhibits excellent mechanical properties and ensures long-term support while maintaining injectability. Interestingly, after intradermal injection in the UVB-induced photoaging model, HA-SF hydrogel not only enhances hydrogel-cell interaction but also continues to stimulate collagen regeneration, especially type III collagen. This dual action achieves the biological effects of repair and anti-aging while maintaining the filling effect. Proteomic analysis confirms that repair and anti-aging effects are enhanced by the regulation of skin fibroblasts and modulation of amino acid and lipid metabolism. This composite hydrogel holds strong promise for clinical applications, offering a safer, long-lasting, and more natural injectable filler that combines filling, repair, and anti-aging into one system.

Objective:To investigate the interventional effect of Rhizoma Corydalis on mice with ulcerative colitis(UC)induced by dextran sulfate sodium(DSS),as well as the potential mechanism of Rhizoma Corydalis in the treatment of UC based on metabolomics and inflammation biomarkers.Methods:A mouse model of UC was established,and then the mice were divided into model group,high-dose group(1.517 g/kg crude drug),middle-dose group(0.986 g/kg crude drug),low-dose group(0.455 g/kg crude drug),and positive drug group(5-aminosalicylic acid at a dose of 718.8 mg/kg),while the mice without modeling were selected as normal group(0.9%NaCl by gavage).The mice in each group were administered for 7 consecutive days,and phenotypic parameters were dynamically moni-tored,such as body weight change,disease activity index(DAI),mean daily food intake,and daily water intake.The mice were sacri-ficed after 7 days to collect serum and colon tissue samples;ELISA was used to measure the serum levels of the proinflammatory fac-tors interleukin-6(IL-6),interleukin-17A(IL-17A),C-reactive protein(CRP),and tumor necrosis factor-α(TNF-α),and ultra-performance liquid chromatography-quadrupole time-of-flight mass spectrometry(UPLC-Q-TOF/MS)was used to perform the non-targeted metabolomics analysis and compare the differences in se-rum metabolite profiles between groups.The mice were selected for modeling and validation with the same method,and glutathione(GSH)was selected as the positive drug.Colon length and mucosal damage were assessed,and quantitative real-time PCR was used to measure the relative mRNA expression levels of the key genes in the glutathione synthesis pathway(γ-glutamylcysteine synthetase[γ-GCS]and oxidative stress regulators yap1p and skn7)and mito-chondrial GSH transporter protein(Slc25a39)in colonic tissue.Results:Rhizoma Corydalis significantly improved weight loss,DAI,and colon length in a dose-dependent manner in the model animals,and there were reductions in the serum levels of IL-6,CRP,and TNF-α,while it had no significant effect on IL-17A.The metabolomics analysis revealed 21 potential biomarkers associated with amino acid and lipid metabolism,which were significantly regulated by Rhizoma Corydalis.In the verification experiment,both Rhi-zoma Corydalis and GSH exerted a significant protective effect against colonic mucosal damage without affecting colon length.Rhizoma Corydalis upregulated the expression of genes associated with glutathione synthesis,especially γ-GCS,suggesting that Rhizoma Co-rydalis could enhance intestinal antioxidant defenses.Conclusion:Rhizoma Corydalis has a therapeutic potential in a mouse model of DSS-induced UC and can alleviate symptoms,reduce the serum levels of inflammatory markers,and regulate metabolic pathways,and upregulation of the genes associated with glutathione synthesis suggests that the drug can enhance intestinal antioxidant defenses.

Objective To observe the mechanism of action of electroacupuncture at Neiguan(PC6)points for alleviating lipopolysaccharide(LPS)-induced myocadial dysfunction in sepsis model mice.Methods Forty-eight male C57BL/6 mice were randomly divided into four groups,namely normal control group,saline+electroacupuncture group,sepsis model group,and sepsis+electroacupuncture group.The rats in the sepsis model group and sepsis+electroacupuncture group were given intraperitoneal injection of LPS(5 mg/kg)to induce the sepsis model.The mice were treated with electroacupuncture immediately after injection.At hour 6 after the LPS intervention,the left ventricular short-axis end-systolic diameter(LVIDs)and fractional shortening(FS)of the left ventricular were monitored by color doppler echocardiography.The levels of inflammatory factors such as tumor necrosis factor alpha(TNF-α)and interleukin 6(IL-6)in serum were detected by enzyme-linked immunosorbent assay(ELISA),and the protein expression levels of Rho-kinase(ROCK)1 and ROCK2,and phosphorylation levels of myosin phosphatase substrate 1(MYPT1)and myosin light chain 2(MLC2)in cardiac tissues were detected by Western Blot.Results Compared with the normal control group,the LVIDs in mice in the sepsis model group was increased(P<0.05),FS was decreased(P<0.05),the levels of TNF-α and IL-6 in serum were all elevated(P<0.001),and the level of phosphorylation of MYPT1,a substrate of ROCK,in cardiac tissues was significantly elevated(P<0.05);compared with the sepsis model group,the LVIDs in the sepsis+electroacupuncture group was decreased(P<0.05),FS was increased(P<0.05),the levels of TNF-α and IL-6 in serum were decreased(P<0.05 or P<0.01),and the phosphorylation level of MYPT1 was significantly reduced(P<0.05),and the protein expression levels of ROCK1 and ROCK2 as well as the phosphorylation level of MLC2 had no significant differences(P>0.05).Conclusion Electroacupuncture at Neiguan points may reduce systemic and local inflammatory reaction levels in mice with sepsis model to improve cardiac function through inhibiting the activation of Rho/ROCK signaling pathway in cardiac tissues,thus producing myocardial protection efficacy.

Objective: To explore the impact of online sexuality education courses on the sexual knowledge, attitudes and related behaviors of rural girls, so as to provide the practical guidance for promoting sexual health and development. Methods: From February to June 2023, by posting information online and through commonweal organization websites, rural primary schools in 12 provinces were recruited for a semester of online sexuality education courses from October to November 2023. A self compiled sexuality education questionnaire was used to survey the knowledge, attitudes, and behaviors of rural girls before and after the course intervention, with pre tests in September 2023 and post tests in December 2023. The eligible samples were 3 058 and 2 602 , respectively. Independent sample t tests and text frequency and sentiment analysis were used to process the data Results: In terms of sexual knowledge, the scores of rural girls before and after the test were (8.49±3.29) and (9.40±3.35), respectively, with the post test score being higher than the pre test ( t =-10.20, P <0.01). In terms of attitudes, the scores of rural girls before and after the test were (11.50±4.62) and (10.82±4.80), respectively, with a decrease in stigmatization towards physiological development in the post test ( t =5.40, P <0.01). Regarding sexual related behaviors, the frequency of sexualbased bullying among rural girls was (5.12±2.13) before and (4.89±2.18) after, with a statistically significant difference ( t =3.99, P <0.01). The frequency and willingness of rural girls to discuss sexual topics with significant others both increased on post test (pre test:8.45±2.62; post test: 8.73± 2.62) and (pre test:8.90±2.46, post test:9.16±2.46), with a statistically significant difference ( t =-3.91, -4.03, P < 0.01 ). Text analysis revealed that "boys" "girls" and "menstruation" were the most concerned topics among the participants, and compared to before receiving sex education (69.91%), the proportion of negative emotions among rural girls decreased ( 18.59 %). Conclusion Online sexuality education courses can improve the sexual knowledge of rural girls, reduce stigma and negative emotions towards sex, decrease the incidence of sexual based bullying and increase the frequency and willingness to discuss sexual topics with parents, teachers, and peers.

OBJECTIVE To characterize paclitaxel nanoparticles （PTX-PLGA-NPs） and evaluate their in vitro inhibitory effect on Lewis lung cancer cells. METHODS The PTX-PLGA-NPs prepared by the emulsion-solvent evaporation method were characterized in terms of particle size， polydispersity index （PDI）， Zeta potential， microscopic morphology， encapsulation efficiency， drug loading， ultraviolet-visible absorption characteristics and stability. Using mouse Lewis lung cancer cells as the subjects and paclitaxel reference substance as the control， the cytotoxicity and in vitro killing activity of PTX-PLGA-NPs were detected using CCK-8 method and Calcein-AM/PI double staining method， respectively. The effects of PTX-PLGA-NPs on cell apoptosis and cell cycle were assessed by Annexin Ⅴ-FITC/PI staining method and PI staining method， respectively. RESULTS PTX-PLGA-NPs were spherical with an average particle size of （172.03±0.95） nm， PDI of 0.098±0.012， and Zeta potential of （－1.76±0.02） mV. The encapsulation efficiency and drug loading were （52.32±0.66）% and （7.07±0.18）%， respectively， and the ultraviolet-visible absorption characteristics were not affected by the carrier polylactic-co-glycolic acid. When stored in the dark at 4 °C for 7 days， no significant change was noted in particle size， and the average PDI （after 1， 2， 4 and 7 days of storage） was under 0.3. Compared with the paclitaxel reference substance group， the PTX-PLGA-NPs group had more cells in a state of death， the survival rate （at the PTX concentration of 11.2 μg/mL） was significantly decreased， and both the apoptosis rate and the proportion of G2 phase cells were significantly increased （P＜0.05）. CONCLUSIONS The prepared PTX-PLGA-NPs indicate homogeneity in particle size， uniform dispersion， stable properties， and stronger in vitro killing effect on lung cancer cells than PTX.

ObjectiveTo study the effect of Qizhu Kang'ai prescription （QZAP） on the gluconeogenesis enzyme phosphoenolpyruvate carboxykinase 1 （PCK1） in the liver of mouse model of liver cancer induced by diethylnitrosamine （DEN） combined with carbon tetrachloride （CCl₄） and Huh7 cells of human liver cancer， so as to explore the mechanism on regulating metabolic reprogramming and inhibiting cell proliferation of liver cancer cells. MethodDEN combined with CCl₄ was used to construct a mouse model of liver cancer via intraperitoneal injection. A normal group， a model group， and a QZAP group were set up， in which QZAP （3.51 g·kg^-1） or an equal volume of normal saline was administered daily by gavage， respectively. Serum and liver samples were collected after eight weeks of intervention. Serum alanine aminotransferase （ALT）， aspartate aminotransferase （AST）， γ-glutamyltransferase （γ-GT）， and alpha-fetoprotein （AFP） in mice were detected to evaluate liver function changes of mice in each group. Hematoxylin-eosin （HE） staining and Sirius red staining were used to observe pathological changes in liver tissue. In the cell experiment， Huh7 cells were divided into blank group， QZAP low， medium， and high dose groups and/or PCK1 inhibitor （SKF-34288 hydrochloride） group， and Sorafenib group. The corresponding drug-containing serum and drug treatment were given， respectively. Cell counting kit-8 （CCK-8） method， colony formation experiment， Edu fluorescent labeling detection， intracellular adenosine triphosphate （ATP） content detection， and cell cycle flow cytometry detection were used to evaluate the proliferation ability， energy metabolism changes， and change in the cell cycle of Huh7 cells in each group. Western blot was used to detect the protein expression levels of PCK1， serine/threonine kinase （Akt）， phosphorylated Akt （p-Akt）， and cell cycle-dependent protein kinase inhibitor 1A （p21）. ResultCompared with the model group， the pathological changes such as cell atypia， necrosis， and collagen fiber deposition in liver cancer tissue of mice in the QZAP group were alleviated， and the number of liver tumors was reduced （P<0.01）. The serum ALT， AST， γ-GT， and AFP levels were reduced （P<0.01）. At the cell level， compared with the blank group， low， medium， and high-dose groups of QZAP-containing serum and the Sorafenib group could significantly reduce the survival rate of Huh7 cells （P<0.01） and the number of positive cells with Edu labeling （P<0.01） and inhibit clonal proliferation ability （P<0.01）. The QZAP groups could also reduce the intracellular ATP content （P<0.05） and increase the distribution ratio of the G₀/G₁ phase of the cell cycle （P<0.05） in a dose-dependent manner. Compared with the model group and blank group， PCK1 and p21 protein levels of mouse liver cancer tissue and Huh7 cells in the QZAP groups were significantly reduced （P<0.05，P<0.01）， and the p-Akt protein level was significantly increased （P<0.01）. Compared with the blank group， the ATP content and cell survival rate of Huh7 cells in the SKF-34288 hydrochloride group were significantly increased （P<0.05）， but there was no statistical difference in the ratio of Edu-positive cells and the proportion of G₀/G₁ phase distribution. Compared with the SKF-34288 hydrochloride group， the QZAP combined with the SKF-34288 hydrochloride group significantly reduced the ATP content， cell survival rate， and Edu-positive cell ratio of Huh7 cells （P<0.05） and significantly increased the G₀/G₁ phase distribution proportion （P<0.05）. ConclusionQZAP may induce the metabolic reprogramming of liver cancer cells by activating PCK1 to promote Akt/p21-mediated tumor suppression， thereby exerting an anti-hepatocellular carcinoma proliferation mechanism.

Objective To understand the epidemiological characteristics of scrub typhus disease and to provide a scientific basis for the prevention and control of scrub typhus disease. Methods Descriptive epidemiological methods were used to analyze the population and regional distribution of scrub typhus. Seasonal characteristics were analyzed using concentration method and circular distribution method, and incidence trend was analyzed using joinpoint regression model. Results The annual incidence rate of scrub typhus was 0.95/100 000 from 2010 to 2022. The incidence rate of male was 0.77/100 000, lower than that of female 1.12/100 000 (χ²=18.89, P<0.05). The incidence rate of the 60-74 years old group was 3.38/100,000, and the total number of cases in the age group 45-74 years was 416 (74.95%). Occupational distribution was mainly among farmers, with 448 cases (80.72%). The top three regions with the highest number of reported cases (in order: Donghai County, Ganyu District, and Guannan County) reported a total of 416 cases, accounting for 74.95%. Concentration ratio was M=0.9408, and the incidence of scrub typhus disease was strictly seasonal. Circular distribution results showed a^-=-62.3728, S=20.8960. The circular distribution results indicated that the peak day was October 19th, and the peak period was between October 7 to December 19. The average annual percentage change (AAPC) of the incidence rate from 2010 to 2022 was 13.70%, 95% CI (-8.62%~41.48%), and the incidence rate showed an upward trend (t=1.15, P=0.249). Conclusion The incidence of scrub typhus disease is strictly seasonal, and the incidence rate over the years shows an upward trend. It is necessary to strengthen monitoring and take various intervention measures to reduce the risk of scrub typhus disease.

Objective To investigate the relationship between serum levels of long non-coding RNA(ln-cRNA)nuclear-enriched abundant transcript 1(NEAT1)and microRNA miR-23c in patients with diabetic ne-phropathy(DN).Methods A total of 136 DN patients admitted to the hospital from May 2019 to May 2020 were enrolled in the study as the DN group.Fifty-eight healthy people who underwent physical examination in the hospital during the same period were enrolled as the control group.Real-time fluorescence quantitative PCR(qPCR)was used to detect serum lncRNA NEAT1,miR-23c,kidney injury molecule-1(KIM-1),neutro-phil gelatinase-associated lipocalin(NGAL),tumor necrosis factor-α(TNF-α)mRNA and interleukin-6(IL-6)mRNA in the two groups.Pearson/Spearman correlation was used to analyze the correlation of serum ln-cRNA NEAT1 and miR-23c with KIM-1,NGAL,TNF-α,IL-6 mRNA levels and eGFR in DN patients.DN pa-tients were divided into different CKD stages,and the levels of serum lncRNA NEAT1,miR-23c,KIM-1,NGAL,TNF-α,and IL-6 mRNA in patients in different CKD stages were compared.Multivariate ordered Lo-gistic regression was used to analyze whether serum levels of lncRNA NEAT1 and miR-23c were influencing factors for the progression of DN.Results Compared with the control group,the serum levels of lncRNA NEAT1,KIM-1,NGAL,TNF-α and IL-6 mRNA in the DN group were increased,while miR-23c and esti-mated glomerular filtration rate(eGFR)were decreased,and the differences were all statistically significant(P＜0.05).The serum levels of lncRNA NEAT1,KIM-1,NGAL,TNF-α and IL-6 mRNA in DN patients in G1-G5 stages were increased in order,and the level of miR-23c was decreased in order(P＜0.05).Serum ln-cRNA NEAT1 in DN patients was positively correlated with KIM-1,NGAL,TNF-α and IL-6 mRNA levels(P＜0.05),and negatively correlated with miR-23c and eGFR(P＜0.05).The level of serum miR-23c was negatively correlated with the mRNA levels of KIM-1,NGAL,TNF-α and IL-6(P＜0.05),and positively cor-related with eGFR(P＜0.05).lncRNA NEAT1(OR=2.177,95％CI:2.113-2.441)was an independent risk factor for DN progression,while miR-23c(OR=0.595,95％CI:0.543-0.726)was an independent pro-tective factor(P＜0.05).Conclusion Elevated serum lncRNA NEAT1 levels and reduced miR-23c levels in DN patients are closely associated with the progression of DN disease.

Objective:To analyze the clinical features and risk factors of chest tightness variant asthma (CTVA) in children, so as to provide basis for the prevention and management of the disease.Methods:A cross-sectional study was conducted to analyze 178 children aged 6-17 years old who were admitted to the Department of Allergy, Capital Institute of Pediatrics Affiliated Children′s Hospital from January 2021 to January 2023 due to chest tightness. The age was 8.83(7.50, 11.58) years old, with 89 males (50%) and 89 females (50%). According to the diagnosis of CTVA, 130 cases were divided into CTVA group and 48 non-CTVA cases were divided into control group. Demographic data, personal history, family history, clinical features, auxiliary examination results and other data were collected. The clinical characteristics, allergens, FeNO level and pulmonary function parameters of the two groups were analyzed. Logistic regression analysis was used to explore the risk factors of the disease.Results:The proportion of school-age children (6-11 years old) in CTVA group was higher than that of adolescent children (≥12 years old) [(113/130,86.9%) vs (26/48,54.2%), Z=21.985, P<0.01]. The proportion of CTVA combined with eczema [(74/130,56.9%) vs (19/48,39.6%), χ2=4.225, P<0.05] and rhinitis symptoms [(98/130,75.4%) vs (27/48,56.2%), χ2=6.138, P<0.05] was higher. The positive rates of mold sensitization [(52/130,40.0%) vs (11/48,22.9%), χ2=4.474, P<0.05] and multiple sensitization [(71/130,54.6%) vs (18/48,37.5%), χ2=4.108, P<0.05] in inhaled allergens were significantly higher than those of control group. The proportion of elevated FeNO (>20 ppb) in CTVA children was 20.8% (27/130), which was significantly higher than that in control group 4.2%(2/48)( χ2=7.086 ,P<0.01). There were no statistical differences in spirometry parameters FEV 1 and FVC between CTVA group and control group ( P both>0.05). FEV 1/FVC, PEF, FEF 25, FEF 50, FEF 75 and MMEF were significantly lower than those in control group ( P all<0.05). Logistic regression analysis showed that rhinitis symptoms ( OR=2.351, 95% CI 1.105-5.002, P=0.026), multiple sensitizations ( OR=2.184, 95% CI 1.046-4.557, P=0.038), tIgE>60 kU/L( OR=3.080, 95% CI 1.239-7.654, P=0.015), FeNO>20 ppb ( OR=6.734, 95% CI 1.473-30.796, P=0.014) and small airway dysfunction ( OR=3.164, 95% CI 1.089-9.194, P=0.034) were risk factors for chest tightness variant asthma. FeNO combined with FEF 50 has the largest area under the curve ( Z=2.744, P<0.01) in diagnosing CTVA. Conclusion:CTVA is more common in school-age children than in adolescent children. Rhinitis symptoms, multiple sensitization, tIgE>60 kU/L, FeNO>20 ppb and small airway dysfunction are risk factors for chest tightness variant asthma. FeNO combined with small airway indexes can improve the diagnostic value of CTVA.