Background In 2021, chronic obstructive pulmonary disease (COPD) emerged as the forth leading cause of death in the world. However, the impact of air pollutants on COPD is still inconsistent across current studies. Objective To analyze the relationship between ambient sulfur dioxide (SO₂) exposure and hospital admissions for COPD in Lanzhou, and to examine the modified effects of SO₂ across different genders, age groups, and seasons. Methods A total of 20718 hospital admission records for COPD were collected from Lanzhou between 2016 and 2020, alongside synchronized data on SO₂ concentration and meteorological variables. A generalized additive model integrated with a distributed lag nonlinear model was used to assess the relationship and the lag effects between SO₂ exposure and COPD admissions. Potential confounders, including meteorological factors, day-of-the-week effect, and holidays, were controlled for, with a maximum lag period set at 7 d. Two-pollutant models and sensitivity analyses were conducted to ensure robustness. Results are expressed as relative risks (RR) with 95% confidence intervals (95%CI). Results During the study period, the average daily number of COPD admissions was 11.34±7.03. The average mass concentration of SO₂ was (23.72±12.35) μg·m⁻³. SO₂ exposure was positively correlated with COPD admissions; specifically, each 10 μg·m⁻³ increase in SO₂ concentration was associated with an RR of 1.440 (95%CI: 1.317, 1.573). Stratified analyses found that at a cumulative lag of 7 d, the RRs were higher among females, individuals aged ≥65 years, and during the cold season. Conversely, no significant increase in COPD admission risk related to SO₂ was observed during the warm season. For every 10 μg·m⁻³ increase in SO₂ concentration, the RR was 1.483 (95%CI: 1.311, 1.678) for females, 1.441 (95%CI: 1.311, 1.583) for those aged > 65 years， and 1.595 (95%CI: 1.313, 1.937) during the cold season. Conclusion Short-term exposure to ambient SO₂ exposure in Lanzhou is associated with an increased risk of COPD admission. The association is more pronounced among females, the elderly (aged> 65 years) and during the cold season.

Objective To investigate the etiology and treatment of dysuria shortly after holmium laser enucleation of the prostate (HoLEP) for benign prostatic hyperplasia (BPH), so as to improve the therapeutic efficacy. Methods A retrospective analysis was conducted on 1361 BPH patients who received HoLEP at our hospital during Mar. 2018 and Mar. 2025. All patients underwent ultrasound, computed tomography (CT), urethral probing or radiography, cystourethroscopy, and urodynamic testing. The causes, treatments and prognosis of dysuria after operation were summarized. Results ninety-eight patients (7.2%) experienced dysuria within 3 months after surgery, and all patients received initial urethral dilation. Among the 62 cases with urethral stricture, 28 were treated with urethral dilation (average of 8 sessions), 16 underwent external urethral incision, 8 underwent anterior urethroplasty, and 10 underwent transurethral plasma incision for urethral stricture. Of the 12 cases with residual prostate tissue, 5 underwent urethral plasma prostatectomy and 7 received medication. All of the 12 cases with bladder neck contracture underwent transurethral plasma incision of the bladder neck and local drug injection. Five cases with intravesical blood clots underwent urethral blood clot irrigation, 2 of which developed active bleeding and then underwent electrocoagulation. Four cases with detrusor dysfunction had catheters re-indwelled for one week followed by medication. Two cases with stone and one case with tissue fragment impacted in the urethra underwent urethral holmium lithotripsy and cystoscopic removal. All patients underwent reoperation successfully and experienced complete resolution or significant improvement of urinary difficulties. Conclusion A certain proportion of patients experience dysuria after HoLEP, with diverse etiologies. The combination of prevention and treatment can reduce the incidence of dysuria.

Acute lung injury （ALI） is a life-threatening condition characterized by uncontrolled pulmonary inflammatory responses， presenting high morbidity and mortality rates that pose serious threats to patient health. The pathogenesis of ALI involves complex interactions among pathological mechanisms including immune-inflammatory responses， disruption of the alveolar-capillary barrier， mesenchymal stem cell dysfunction， metabolic disorders， ferroptosis， and alterations in the gut microbiota. The dysregulation of programmed cell death （PCD） has increasingly emerged as a research focus. PCD represents a genetically regulated autonomous process of cell death， crucial for maintaining the internal stability of organisms. Recent studies indicate that multiple PCD modes， including apoptosis， pyroptosis， necroptosis， autophagy， and ferroptosis， participate in the development and progression of ALI by mediating pathological processes such as alveolar epithelial cell injury and vascular endothelial barrier disruption. Current therapeutic approaches for ALI encompass lung-protective ventilation， body fluid management， mesenchymal stem cell therapy， and pharmacological interventions. While these measures may alleviate clinical symptoms， they remain unable to reverse the pathological progression of lung injury. Traditional Chinese medicine （TCM） possesses the unique advantages of a holistic perspective and syndrome differentiation-based treatment， achieving breakthrough progress in targeted PCD intervention for ALI. It can mitigate pulmonary tissue injury by suppressing inflammatory responses， regulating immune function， and improving coagulation disorders， thereby delaying the onset and progression of ALI. This paper delves into the molecular mechanisms of PCD in ALI， systematically reviewing the effects of TCM extracts， active constituents （terpenoids， saponins， flavonoids， and phenols）， and compound formulas （e.g.， Qingjie Huagong prescription， Maxing Kugan Tang， and Yifei Jianpi prescription） in improving pulmonary epithelial cell function and mitigating lung injury by modulating PCD pathways. This review aims to provide theoretical underpinnings and novel directions for drug development in the clinical prevention and treatment of ALI.

Acute lung injury （ALI） is a life-threatening condition characterized by uncontrolled pulmonary inflammatory responses， presenting high morbidity and mortality rates that pose serious threats to patient health. The pathogenesis of ALI involves complex interactions among pathological mechanisms including immune-inflammatory responses， disruption of the alveolar-capillary barrier， mesenchymal stem cell dysfunction， metabolic disorders， ferroptosis， and alterations in the gut microbiota. The dysregulation of programmed cell death （PCD） has increasingly emerged as a research focus. PCD represents a genetically regulated autonomous process of cell death， crucial for maintaining the internal stability of organisms. Recent studies indicate that multiple PCD modes， including apoptosis， pyroptosis， necroptosis， autophagy， and ferroptosis， participate in the development and progression of ALI by mediating pathological processes such as alveolar epithelial cell injury and vascular endothelial barrier disruption. Current therapeutic approaches for ALI encompass lung-protective ventilation， body fluid management， mesenchymal stem cell therapy， and pharmacological interventions. While these measures may alleviate clinical symptoms， they remain unable to reverse the pathological progression of lung injury. Traditional Chinese medicine （TCM） possesses the unique advantages of a holistic perspective and syndrome differentiation-based treatment， achieving breakthrough progress in targeted PCD intervention for ALI. It can mitigate pulmonary tissue injury by suppressing inflammatory responses， regulating immune function， and improving coagulation disorders， thereby delaying the onset and progression of ALI. This paper delves into the molecular mechanisms of PCD in ALI， systematically reviewing the effects of TCM extracts， active constituents （terpenoids， saponins， flavonoids， and phenols）， and compound formulas （e.g.， Qingjie Huagong prescription， Maxing Kugan Tang， and Yifei Jianpi prescription） in improving pulmonary epithelial cell function and mitigating lung injury by modulating PCD pathways. This review aims to provide theoretical underpinnings and novel directions for drug development in the clinical prevention and treatment of ALI.

Objective: To investigate the epidemiological characteristics of pertussis in Jiaxing City from 2004 to 2023 and spatio-temporal clustering characteristics from 2022 to 2023, so as to provide insights into formulation of pertussis control measures. Methods: Data of pertussis cases in Jiaxing City from 2004 to 2023 were collected through the Infectious Disease Report Information System of Chinese Disease Prevention and Control Information System. The epidemiological characteristics of pertussis cases in Jiaxing City from 2004 to 2023 were descriptively analyzed, and the spatio-temporal clustering characteristics from 2022 to 2023 were analyzed using spatio-temporal scanning. Results: A total of 478 pertussis cases were reported in Jiaxing City from 2004 to 2023, with an average annual reported incidence of 0.53/105. The reported incidence showed an upward trend from 2004 to 2023 (P<0.05), with the highest in 2022 (3.17/105). Higher incidence of pertussis was reported in June to August (149 cases, 31.17%) and November to December (112 cases, 23.43%). There was no statistically significant difference in the reported incidence between males and females (0.56/105 vs. 0.50/105, P>0.05). The cases aged under one year accounted for the highest proportion, with 199 cases (41.63%). Haining City (0.68/105), Jiashan County (0.64/105) and Tongxiang City (0.60/105) ranked the top three in the reported incidence of pertussis. Spatio-temporal scanning analysis showed that from 2022 to 2023, the primary clustering area of pertussis was centered in Daqiao Town of Nanhu District, covering 27 towns (streets) in Nanhu District, Jiashan County, Xiuzhou District and Pinghu City, and the clustering time was from November to December, 2023. Conclusions The reported incidence of pertussis was at a low level in Jiaxing City, but showed an upward trend from 2004 to 2023. The incidence of pertussis was higher among infants under one year of age, peaked in June to August and November to December, and was concentrated in Nanhu District and its surrounding areas.

Objective:To investigate influence of different phantoms on the results of quality control for the images of cone beam computed tomography(CBCT)for breast on the basis of quality control for breast CBCT.Methods:Five different manufacturers'phantoms were selected,and they were placed at the position of testing breast in clinical examination to conduct position for phantom according to the method of the national health industry standard WS 818-2023.The analysis focused on the differences of evaluation results of using different phantoms for image quality on the basis of a series of parameters included uniformity,resolution of high contrast,resolution of low contrast,and CT value of water in scanning images of different phantoms.Data collection and image reconstruction were performed respectively by using commonly clinical procedures.Corresponding module images were selected from the reconstructed images of standard breast phantom.The common layer thickness and projection method of the system were set to record and analyze data.Results:The image uniformity of measured results of the five phantoms were respectively 42.37±2.01,-5.83±0.15,3.76±0.15,2.16±0.06,3.60±0.10.The differences of the image uniformities among the five phantoms were statistically significant(F=1310.02,P<0.001),and the differences of the CT values of the measured water among the five phantoms were statistically significant(F=9 846.46,P<0.001).The differences in the resolution of low contrast among them were also statistically significant(F=27.50,P<0.001).However,the results of the resolution of high contrast were stability,and there was no significant difference in that among the five phantoms.Conclusion:The measured results of quality control of different phantoms are different.

Systemic inflammation of cachexia is an important cause of high mortality of degenerative diseases such as ad-vanced cancer,and also the most important factor to aggravate the cachexia process.Systemic inflammation of cachexia has a profound impact on the proliferation and invasion of tumors and the catabolism of muscle and adipose tissue in patients with cachexia.In recent years,studies have shown that the dysfunction of gut microbiota during cachexia is an important cause of cachexia systemic inflamma-tion and a key therapeutic target.The dysfunctions of intestinal barrier mediated by gut microbiota and the translocation of bacterial tox-ins during the cachexia period are important causes of cachexia systemic inflammation.This article mainly summarized the relationship between gut microbiota and cachexia systemic inflammation,and summarized the mechanism of intestinal flora inducing cachexia sys-temic inflammation by regulating short chain fatty acids,lipopolysaccharide,flagellin,peptidoglycan and other substances,with a view to providing new ideas for the prevention and treatment of cachexia systemic inflammation from the perspective of intestinal flora.

OBJECTIVE To analyze the chemical constituents of Heihuang Chizhu Granules and the blood composition of rats af-ter administration by UPLC-Q-TOF-MS/MS.METHODS A Waters ACQUITY UPLC HSS T3 column(3 mm×100 mm,1.8 μm)was eluted with acetonitrile-0.1%formic acid as mobile phase,and the data were collected in electrospray ion source positive and neg-ative ion mode and then identified with the reference retention time,precise molecular weight,secondary fragment ions,and references to relevant literature.RESULTS A total of 104 chemical components were identified from Heihuang Chizhu Granules,including 26 flavonoids,24 organic acids,14 triterpenoids,8 terpenoids,7 phenylpropanoids,11 monoglycosides,and 14 other components(phe-nols,alkaloids,etc.).On this basis,39 blood-entering components were identified in the plasma of rats administered via gavage,in-cluding 28 prototypes and 11 metabolites.CONCLUSION The chemical constituents of Heihuang Chizhu Granules and the compo-nents entering the blood of rats are analyzed and identified for the first time in this study,and the results provide a scientific basis for the basic research of Heihuang Chizhu Granules and the establishment of process quality control standards.

Objective:To investigate the role of iron death in paraquat (PQ) -induced alveolar epithelial mesangialization (EMT) .Methods:In August 2023, the appropriate PQ staining concentration as well as the intervention concentration of lipoinhibitor-1 (Lip-1) were screened by CCK8 method. The RLE-6TN cells were divided into three groups, which were control group, PQ group and iron death inhibition group, 200 μmol/L PQ solution was given to the PQ group, and PQ 200 μmol/L and 0.1 μmol/L Lip-1 solution was given to the iron death inhibition group, the control group was added the same amount of cell medium. morphological changes and migratory viability of the cells in each group were observed at 12 h, 24 h and 48 h after the poisoning, and the contents of ferrous ions (Fe 2+), reactive oxygen radicals (ROS), glutathione (GSH), superoxide dismutase (SOD), and malondialdehyde (MDA) were detected in each group; meanwhile, qRT-PCR and western-blot were used to determine the molecular expression of E-cadherin, α-smooth muscle actin (α-SMA), and Collagen I in the cells in each group. The difference between group was compared by ANOVA, and the further pairwise comparison was conducted by Bonferroni method. Results:Cell viability was detected using CCK8, and the results showed that the cell survival rate of RLE-6TN cells treated with 200 μmol/L PQ+0.1 μmol/L Lip-1 solution was 56.6%. The migration activity of RLE-6TN cells in the iron death inhibition group was weaker than that in the PQ group after 24 and 48 hours of exposure, and the degree of EMT changes in the cells was reduced compared to the PQ group. After 12, 24, and 48 hours of exposure, the Fe 2+ concentration, ROS fluorescence intensity, and MDA content in the iron death inhibition group decreased compared to the corresponding time points in the PQ group ( P<0.05/3), while compared with PQ group, the GSH concentration and SOD concentration increased compared to the corresponding time points in the PQ group ( P<0.05/3). The results showed that compared with the control group, the expression levels of E-cadherin mRNA and protein in PQ group and iron death inhibition group were both decreased ( P<0.05/3), while compared with PQ group, the expression levels of E-cadherin mRNA and protein in iron death inhibition group were increased ( P<0.05/3) ; Compared with the control group, the expression levels of α-SMA, Collagen I mRNA and protein in PQ group and iron death inhibition group cells increased ( P<0.05/3), while compared with PQ group, the expression levels of α-SMA, Collagen I mRNA and protein in iron death inhibition group cells decreased ( P<0.05/3) . Conclusion:Ferroptosis is involved in the EMT process of alveolar epithelial cells induced by PQ. Inhibiting ferroptosis can reduce cellular oxidative damage and alleviate the degree of cellular EMT.

OBJECTIVE To investigate the current status of bloodborne occupational exposures among healthcare workers in a three-A specialized hospital of Shanghai so as to provide bases for formulating prevention measures for occupational exposures.METHODS A questionnaires titled'Survey of bloodborne occupational exposures among healthcare workers'were clinically distributed to Eye &ENT Hospital of Fudan University through'Wenjuanxing platform'from Feb.2024 to Apr.2024.The content of the questionnaire included four parts:the baseline data questionnaire,incidence of occupational exposures,awareness of knowledge about occupational exposures,and preventive behaviors regarding occupational exposures.RESULTS A total of 995 valid questionnaires were collect-ed in the survey,the result of the survey showed that the incidence of bloodborne occupational exposures was 10.65％.The clinicians and doctors engaging in advanced studies were at high risk of the occupational exposures especially when they were busy with work.The result of the survey indicated that the rate of missing report was 71.33％,the implementation rate of monitoring was only 48.11％after the exposures,of which the major cau-ses included the health care workers'insufficient attention to the exposure events,flaws in prevention and control of occupational exposures and some personnels'poor awareness of reporting process and requirements for monito-ring.Although the awareness rate of emergency processing exceeded 90％,the awareness rate of the knowledge a-bout prophylactic use of antibiotics and prevention of needlestick injuries,and the preparations before diagnosis and treatment,standardized operations and use of protective articles still needed to be improved.CONCLUSIONS The survey reveals that the health care workers pay less attention to the risk of infections,and the prevention of occupational exposure needs to be improved.It is of great importance to raise the awareness of prevention and en-hance the systematic training for occupational exposure.