ObjectiveThis study aimed to elucidate the mechanistic role of Staphylococcus aureus in the pathogenesis of atopic dermatitis (AD), a chronic inflammatory skin disorder characterized by pruritus and barrier dysfunction. A key focus was screening traditional Chinese medicine (TCM) active components with dual antibacterial and antipruritic efficacy, followed by systematic evaluation of their in vitro antibacterial activity. Additionally, a novel drug delivery system was constructed to enable localized efficient drug delivery, inhibiting S. aureus proliferation and alleviating its induced pruritus, thereby providing new strategies for targeted AD therapy. MethodsMale C57BL/6J mice aged 6-8 weeks (body weight 18-22 g) were used to establish an AD model via repeated oxazolone sensitization. On day 14, microbial samples were collected from the lesional area (1 cm²) using sterile cotton swabs, followed by vortex mixing, serial dilution, and plating on 5% sheep blood agar plates (incubated at 37°C for 24 h). Single colonies with complete transparent β-hemolytic zones were isolated and identified as vancomycin-intermediate S. aureus (VISA) via 16S rRNA sequencing. An S. aureus mono-infection animal model was then established by applying gauze saturated with bacterial suspension (McFarland turbidity 0.1) to the nape and back skin of mice. The pruritic phenotype and inflammatory cell infiltration induced by S. aureus were evaluated using comprehensive approaches including behavioral assays (e.g., scratching frequency recording), hematoxylin-eosin (HE) staining, and toluidine blue staining. The in vitro antibacterial efficacy of the TCM monomer pseudolaric acid B (PAB) and double network hydrogel (DN) was separately assessed by disk diffusion assay, while the minimum inhibitory concentration (MIC) of PAB was determined via broth dilution method. Further validation of the pharmacodynamic characteristics of the composite system (PAB@DN, composed of PAB and DN) was conducted through behavioral assays, HE staining, and dermatitis scoring, with its drug release profile evaluated by mass spectrometry analysis. Based on scratching behavioral analysis and dermatitis scoring, the optimal ratio and concentration of PAB@DN were optimized. ResultsThe S. aureus load in AD lesional tissues was significantly higher than in normal skin ((5.3±0.33)×10⁶ CFU vs. (3.6±0.26)×10⁷ CFU, P<0.001). In the S. aureus mono-infection group, mice exhibited a 6.7-fold increase in scratching frequency compared to the control group. HE staining revealed marked epidermal thickening ((10.4±2.39) μm vs. (85.6±1.95) μm, P<0.000 1), and toluidine blue staining showed a 23-fold increase in mast cell degranulation. Pseudolaric acid B exhibited a significant concentration-dependent inhibitory effect onS. aureus growth, with its in vitro antibacterial effect being 57% that of the antibiotic cefepime (inhibition zone diameter: PAB (1.885±0.036) cm vs. cefepime (3.636±0.005) cm, P<0.000 1) and a minimum inhibitory concentration (MIC) of 1 g/L. The carrier double network hydrogel (DN) itself lacked direct antibacterial activity (no significant difference in inhibition zone diameter compared to the control) but effectively ameliorated the dry symptoms of AD-like lesions. The PAB@DN composite system demonstrated a synergistic effect compared to individual components, resulting in a 50% reduction in scratching behavior, an 86% decrease in dermatitis score, and a 60% reduction in epidermal thickening. It also reduced the S. aureus load in mouse skin by approximately 34%, with the optimal effective formulation being PAB at 1 g/L loaded onto DN. ConclusionS. aureus colonization plays a critical driving role in the onset and progression of AD. Using an S. aureus infection model, this study confirmed that the pseudolaric acidB-hydrogel composite delivery system (PAB@DN) can effectively alleviate S. aureus-induced pruritus and skin damage, providing experimental evidence for microbiota-targeted therapy of AD.

Objective: To investigate the characteristics of malignant tumor incidence and mortality in cancer registration areas of Sichuan Province in 2021. Methods: Cancer registration data from 142 registries in Sichuan Province in 2021 were collected via the China Cancer Registry Platform. Crude incidence and crude mortality were calculated. The Chinese population-standardized incidence and world population-standardized incidence were standardized using the age structure of the standard population from the Fifth National Population Census in 2000 and Segi's world standard population. Descriptive analyses examined the distribution of rates by genders, urban/rural areas, and ages, and the ranking of leading cancer sites. Results: In 2021, there were 248 600 new malignant tumor cases reported in Sichuan Province, with a crude incidence of 296.37/100 000. The Chinese population-standardized incidence and world population-standardized incidence were 164.67/100 000 and 160.47/100 000, respectively. There were 158 673 malignant tumor deaths, with a crude mortality of 189.16/100 000. The Chinese population-standardized mortality and world population-standardized mortality were 92.47/100 000 and 92.00/100 000, respectively. The Chinese population-standardized incidence and mortality in males were higher than in females (179.56/100 000 vs. 151.62/100 000, 125.09/100 000 vs. 60.35/100 000). The Chinese population-standardized incidence and mortality in urban areas were higher than in rural areas (175.74/100 000 vs. 157.54/100 000, 93.63/100 000 vs. 91.82/100 000). Both the crude incidence and crude mortality increased with age. The top ten malignant tumors by crude incidence were lung cancer, colorectal cancer, liver cancer, breast cancer, esophageal cancer, gastric cancer, cervical cancer, prostate cancer, thyroid cancer, and corpus uteri cancer, accounting for 76.33% of all new cases. The top ten by crude mortality were lung cancer, liver cancer, esophageal cancer, colorectal cancer, gastric cancer, breast cancer, pancreatic cancer, cervical cancer, prostate cancer, and brain tumors, accounting for 82.39% of all cancer deaths. Conclusions In registration areas of Sichuan Province, the incidence and mortality of malignant tumors are relatively low. Key populations such as males, urban residents, and the elderly require focused prevention and control efforts. Comprehensive measures should be prioritized for malignant tumors including lung cancer, liver cancer, esophageal cancer, gastric cancer, colorectal cancer, and breast cancer.

Aim To explore the possible regulatory effect of leptin on acyl-CoA synthetase long chain fami-ly member ACSL5 and their effect on migration and in-vasion of breast cancer cell,and to explore the underly-ing mechanism.Methods The expression of leptin receptor was detected by immunofluorescence assay.The migration and invasion ability of MCF-7 cells were detected by wound healing assay and Transwell assay respectively.The downstream target gene of leptin was analyzed by PCR microarray data.The expression of ACSL5 in breast cancer and its correlation with the staging and prognosis of breast cancer patients were as-sessed uing bioinformatics methods.The expression of ACSL5 in MCF-7 cells treated with different concentra-tions of leptin was detected using real time fluorescence quantitative polymerase chain reaction(RT-qPCR).Overexpressing ACSL5 was constructed by lentiviral transfection;the expressions of EMT related proteins,AMPK-α and p-AMPK-α were detected by Western blot.Results Leptin promoted breast cancer cell mi-gration and invasion and EMT.ACSL5 was significant-ly low expressed in breast cancer and related to progno-sis.Leptin downregulated the expression of ACSL5 through OBR.Leptin activated AMPK pathway to downregulate ACSL5 and promote migration,invasion and EMT of breast cancer cells.Conclusions Leptin may promote the migration,invasion and EMT of breast cancer by downregulating ACSL5 through activating AMPK pathway.

OBJECTIVE: To investigate the clinical effect and adverse reactions of dapoxetine hydrochloride versus paroxetine in the treatment of primary premature ejaculation by cross-comparison. METHODS: Based on the clinic-visit time, we equally randomized 148 patients with primary premature ejaculation into groups A and B for a cross-comparison test, the former treated with paroxetine at 20 mg once nightly and the latter with dapoxetine hydrochloride at 30 mg on demand, both for 6 successive weeks, during which we observed the therapeutic effects and adverse reactions. Following 4 weeks of drug discontinuance, we administered dapoxetine hydrochloride at 30 mg on demand for group A and paroxetine at 20 mg once nightly for group B, both for another 6 successive weeks, followed by observation and comparison of the therapeutic effects and adverse reactions. RESULTS: There were no statistically significant differences in the initial characteristics of the two groups of patients (P > 0.05). Compared with the baseline, the mean intra-vaginal ejaculation latency time (IELT) was dramatically improved after treatment in both groups A (4.43 min) and B (7.12 min), increased by 3.99% and 6.72%, respectively (P<0.001). The patients treated with paroxetine showed significantly longer IELT than those taking dapoxetine hydrochloride in both groups (P<0.001). Findings of the Premature Ejaculation Profile (PEP) and spouses' conditions indicated significant improvement after treatment in the average scores of the four indicators of PEP, that is, perceived control over ejaculation, ejaculation-related personal distress, satisfaction with sexual intercourse and ejaculation-related interpersonal difficulty, as well as in the overall experience and partner's satisfaction and orgasm frequency. Adverse reactions to medication were found in 20.8% of the cases in group A and 9.7% in group B, but none was serious. Preference survey following drug withdrawal revealed a preference for paroxetine (61.9%) over dapoxetine (26.8%), and that only a few of the patients thought of the two drugs as comparable or both ineffective. CONCLUSION In term of overall effectiveness, paroxetine was superior to dapoxetine in the treatment of primary premature ejaculation. And the patients obviously preferred the former to the latter, which might be partly attributed to the higher price of dapoxetine.
Humans ; Benzylamines/therapeutic use* ; Male ; Premature Ejaculation/drug therapy* ; Naphthalenes/therapeutic use* ; Paroxetine/therapeutic use* ; Adult ; Treatment Outcome ; Middle Aged ; Young Adult ; Selective Serotonin Reuptake Inhibitors/therapeutic use*

Objective To investigate the effect of different residence time of povidone iodine on the disinfection effect of conjunctival sac in senile cataract surgery.Methods A total of 396 senile patients who underwent cataract surgery in our hospital were selected and randomly divided into the long-residence group and the short-residence group,with 198 cases in each group.The patients of the long-residence group and the short-residence group were disinfected with a disposable filling 5%povidone iodine on conjunctival sac for 3 minutes and 30 seconds before surgery,respectively.The bacterial detection and bacterial distribution on conjunctival sac,and corneal epithelial cell damage were compared between the two groups.The subjective comfort conditions such as ocular itching,foreign body sensation,erythema,and photophobia after disinfection were recorded.Results There was no significant difference in the bacterial detection rate before and after disinfection between the two groups(P>0.05).The most frequently detected bacteria in the short-residence group was Staphylococcus epidermidis,accounting for 28.79%and 33.33%before and after disinfection,respectively.The incidences of ocular itching,foreign body sensation,erythema,and photophobia after disinfection in the short-residence group were significantly lower than those in the long-residence group(P<0.05),while the rate of corneal epithelial cell damage in the long-residence group was significantly higher than that in the short-residence group(P<0.05).Conclusion The use of disposable filling 5%povidone iodine for disinfection on conjunctival sac for 30 seconds before surgery can achieve a comparable disinfection effect to disinfection for 3 minutes,which has less effect on corneal epithelial cells,and higher ocular comfort.

Objective To systematically retrieve,evaluate and summarise the best available evidence on prevention and management of diagnostic blood loss in critically ill adult patients and to provide guidance for standardising diagnostic blood sampling in clinical practice.Methods A structured evidence question was created using the PIPOST framework(Population,Intervention,Professional,Outcome,Setting and Type of evidence).Guided by the"5S"levels-of-evidence pyramid,a top-down systematic search was conducted on databases of BMJ Best Practice,UpToDate,the Joanna Briggs Institute(JBI)EBP Database,GIN,SIGN,RNAO,NICE,Medlive Guideline,WHO,National Blood Authority(Australia),National Health Commission of China,Cochrane Library,PubMed,EMbase,CINAHL,Web of Science,Wanfang Data,CNKI,VIP,and SinoMed.Searched literature included clinical decision aids,guidelines,evidence summaries,systematic reviews Meta analysis,RCTs,quasi-experimental,cross-sectional,cohort studies and expert consensus/opinions.Search period covered between 1st January 2015 and 10th February 2025.Quality appraisal,evidence extraction,synthesis and grading were performed according to JBI and GRADE approaches.Results Nineteen articles were retrieved including five guidelines,five systematic reviews,one RCT,two quasi-experimental studies,two cross-sectional studies,one professional standard and three expert consensuses.A total of 26 recommendations were extracted and they were organised into five domains:education and training,blood-sampling assessment,frequency of sampling,strategies to minimise blood volume drawn,and quality control.Conclusion This evidence summary provides the best current guidance for preventing and managing iatrogenic blood loss caused by diagnostic testing in critically ill adults,providing evidence-based basis for standardizing blood tests by medical staff.

Aim To investigate the effects of edaravone(EDA)on depression-like behaviors in a rat model of post-stroke depression(PSD)and to explore the un-derlying mechanisms.Methods SD rats were ran-domly divided into:sham operation group(Sham),cerebral ischemia group(CI),post-stroke depression(PSD),fluoxetine(10 mg·kg-1)group,and EDA(5,15 mg·kg-1)group.A PSD rat model was estab-lished using the suture method combined with 56 d of chronic unpredictable mild stimulation.Drug treatment was given once daily for 28 d after stimulation.Body weight and sucrose water preference were measured during the stimulation period,and serum TNF-α,IL-1 β,IL-6,MDA,SOD levels,and hippocampal tissue HO-1 and GPX4 protein expression were detected at the end of stimulation.Results Compared with the sham group,the rat neurological function scores of the remaining groups increased(P＜0.01).Compared with the PSD group,EDA increased the body weight and sucrose water preference of the rats(P＜0.01),significantly decreased the serum TNF-α,IL-1β and IL-6 levels,decreased the MDA level,increased the SOD level(P＜0.01),and up-regulated hippocampal HO-1 and GPX4 protein expression(P＜0.01).Con-clusions EDA improves depression-like behaviors and inhibits peripheral inflammation and oxidative stress in-jury in PSD rats,and its mechanism may be related to the activation of HO-1/GPX4 pathway to inhibit oxida-tive stress.

Objective This study aims to evaluate the effectiveness of intelligent bed management model in integrating bed resources in a large comprehensive hospital.Methods Inpatient data from a tertiary hospital between January 2021 and De-cember 2024 were collected.An intelligent hospital-wide bed management platform was constructed to implement bed resource sharing mechanisms and establish a standardized bed reservation grading system.The implementation effect of the system was e-valuated from the perspective of bed occupancy rate,average length of stay,and patient satisfaction.Results After implementa-tion,bed occupancy rates in key monitored departments moved into a reasonable range:Rehabilitation Medicine Department fell from 113.18％to 101.48％(t=4.26,P＜0.01),while Neurology Department increased from 88.18％to 96.20％(t=3.85,P＜0.01).Annual inpatient admissions increased from 83,931 to 103,852(x2=156.82,P＜0.001),and average length of stay shortened from 7.15 days to 6.21 days(t=4.73,P＜0.01).The admission waiting time was cut by 72.7 hours(-43.1％),and satisfaction with bed allocation rationality improved by 11.2 points(t=5.94,P＜0.001).Staff time spent on bed-assignment fell by 42 minutes per shift(t=8.92,P＜0.001),and cross-department transfers increased by 378 episodes per month(x2=145.26,P＜0.001).Conclusion The intelligent bed management model can effectively improve hospital bed utili-zation efficiency,enhance healthcare service quality,reduce staff workload,and merits wider application in similar hospitals.

Based on ultra-high performance liquid chromatography-quadrupole-Exactive Orbitrap mass spectrometry(UPLC-Q-Exactive Orbitrap-MS) technology and network pharmacology, this study explored the pharmacodynamic substances and potential mechanisms of Huazhuo Sanjie Chubi Decoction in the treatment of gouty arthritis(GA). UPLC-Q-Exactive Orbitrap-MS technology was used to identify the components in Huazhuo Sanjie Chubi Decoction, and the qualitative analysis of its active ingredients was carried out, with a total of 184 active ingredients identified. A total of 897 active ingredient targets were screened through the PharmMapper database, and 491 GA-related disease targets were obtained from the OMIM, GeneCards, CTD databases. After Venn analysis, 60 intersecting targets were obtained. The component target-GA target network was constructed through the Cytoscape platform, and the STRING database was used to construct a protein-protein interaction network, with 16 core targets screened. The core targets were subjected to Gene Ontology(GO) and Kyoto Encyclopedia of Genes and Genomes(KEGG) pathway enrichment analyses, and the component-target-pathway network was constructed. It was found that the main active ingredients of the formula for the treatment of GA were phenols, flavonoids, alkaloids, and terpenoids, and the key targets were SRC, MMP3, MMP9, REN, ALB, IGF1R, PPARG, MAPK1, HPRT1, and CASP1. Through GO analysis, it was found that the treatment of GA mainly involved biological processes such as lipid response, bacterial response, and biostimulus response. KEGG analysis showed that the pathways related to the treatment of GA included lipids and atherosclerosis, neutrophil extracellular traps(NETs), IL-17, and so on. In summary, phenols, flavonoids, alkaloids, and terpenoids may be the core pharmacodynamic substances of Huazhuo Sanjie Chubi Decoction in the treatment of GA, and the pharmacodynamic mechanism may be related to SRC, MMP3, MMP9, and other targets, as well as lipids and atherosclerosis, NETs, IL-17, and other pathways.
Drugs, Chinese Herbal/therapeutic use* ; Network Pharmacology ; Arthritis, Gouty/metabolism* ; Chromatography, High Pressure Liquid/methods* ; Humans ; Mass Spectrometry/methods* ; Protein Interaction Maps/drug effects*

Objective To systematically retrieve,evaluate and summarise the best available evidence on prevention and management of diagnostic blood loss in critically ill adult patients and to provide guidance for standardising diagnostic blood sampling in clinical practice.Methods A structured evidence question was created using the PIPOST framework(Population,Intervention,Professional,Outcome,Setting and Type of evidence).Guided by the"5S"levels-of-evidence pyramid,a top-down systematic search was conducted on databases of BMJ Best Practice,UpToDate,the Joanna Briggs Institute(JBI)EBP Database,GIN,SIGN,RNAO,NICE,Medlive Guideline,WHO,National Blood Authority(Australia),National Health Commission of China,Cochrane Library,PubMed,EMbase,CINAHL,Web of Science,Wanfang Data,CNKI,VIP,and SinoMed.Searched literature included clinical decision aids,guidelines,evidence summaries,systematic reviews Meta analysis,RCTs,quasi-experimental,cross-sectional,cohort studies and expert consensus/opinions.Search period covered between 1st January 2015 and 10th February 2025.Quality appraisal,evidence extraction,synthesis and grading were performed according to JBI and GRADE approaches.Results Nineteen articles were retrieved including five guidelines,five systematic reviews,one RCT,two quasi-experimental studies,two cross-sectional studies,one professional standard and three expert consensuses.A total of 26 recommendations were extracted and they were organised into five domains:education and training,blood-sampling assessment,frequency of sampling,strategies to minimise blood volume drawn,and quality control.Conclusion This evidence summary provides the best current guidance for preventing and managing iatrogenic blood loss caused by diagnostic testing in critically ill adults,providing evidence-based basis for standardizing blood tests by medical staff.