1.Investigation on the microclimate of primary and secondary school classrooms in five provinces and municipalities of China in winter
Chinese Journal of School Health 2026;47(2):158-162
Objective:
To understand the microclimate in primary and secondary school classrooms for the study period during the winter heating season, so as to provide a reference for the revision and improvement of relevant health standards.
Methods:
In December 2024, stratified random sampling was used to select 30 primary and secondary schools and 180 classrooms from the northern regions with centralized heating (Liaoning Province, Tianjin City) and the southern regions without centralized heating (Shanghai City, Anhui Province, and Jiangxi Province). Indoor temperature, relative humidity, wind speed, CO 2 and other indicators were measured on site. Variance analysis, t-test, Mann-Whitney U test and Kruskal-Wallis H test were used to analyze the differences in the microclimate of classrooms among regions and urban and rural differences.
Results:
The average temperature in the middle of the classrooms tested on site was (16.47±4.72)℃, and the variance analysis showed that the difference between the regions was statistically significant ( F=27.80, P <0.01). Among them, Tianjin had the highest average temperature of (20.43± 2.12 )℃, followed by Liaoning (19.03±2.23)℃, Shanghai (15.33±5.32)℃, Anhui (12.79±1.74)℃, and Jiangxi (11.69± 1.68 )℃. Horizontal temperature difference was 0.90 (0.50, 1.60)℃, the vertical temperature difference was 0.20 (0.10,0.60)℃, the average relative humidity was (44.39±16.16)%, the wind speed was 0.03(0.01,0.11)m/s, and the differences among different provinces and cities were statistically significant ( H/F =40.62, 82.69, 95.06, 55.28, all P <0.01). The average CO 2 volume concentration in urban areas of Tianjin, Liaoning, and Shanghai was 0.21(0.16,0.30)%, and there was no statistically significant difference ( H=4.65, P =0.10). There were grade differences in relative humidity ( F =3.71, 6.21) and CO 2 ( H =14.72, 12.92) in the north and the south (all P <0.05). In addition, the temperature, relative humidity, wind speed and CO 2 in the middle of the classroom were 42.8%, 67.8%, 100.0% and 22.2% respectively.
Conclusions
The temperature in the middle of the classroom in the non centralized heating area is lower than the standard, the relative humidity of classroom in the centralized heating area is lower than the standard,and the CO 2 in the classroom in winter is lower than the standard. It is recommended to install heating facilities in schools with low temperatures to increase the temperature and increase the frequency of ventilation in classrooms or adopt mechanical ventilation strategies to reduce CO 2 volume concentration.
2.Expert consensus on the application of artificial intelligence in lung cancer screening, diagnosis, and treatment (2026 edition)
Wenzhao ZHONG ; Haibo WANG ; Yi HU ; Hao ZHANG ; Jigang DAI ; Junqiang FAN ; Guibin QIAO ; Fan YANG ; Jian HU ; Fengwei TAN ; Xuening YANG ; Qiang PU ; Zihao CHEN ; Hongxia TIAN ; Lunxu LIU ; Hecheng LI ; Xiaolong YAN ; Zongyang YU ; Zhenbin QIU ; Yihua SUN ; Jing HU ; Yuhang SHI ; Zhifei GUO ; Peng ZHANG ; Kezhong CHEN ; Shugeng GAO ; Yilong WU
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2026;33(06):848-856
With the continuous deepening of the concept of precision diagnosis and treatment for lung cancer, how to achieve higher efficiency and accuracy in the screening, diagnosis, and treatment pathways in clinical practice has become an important issue that urgently needs to be overcome. The current clinical difficulty lies in the fact that despite continuous advancements in imaging and molecular diagnostic technologies, there are still limitations in manual efficiency and subjective experience when it comes to massive data analysis and multi-scale feature extraction. Artificial intelligence (AI), especially algorithm systems based on deep learning, is an innovative technology capable of deeply empowering medical big data. This method utilizes algorithms such as convolutional neural networks, combined with radiomics, pathomics, and multi-modal data fusion analysis, demonstrating immense potential in early precise detection and benign-malignant differentiation of pulmonary nodules, digital pathological subtype recognition and non-invasive prediction of driver genes, precise 3D surgical planning and automatic delineation of radiotherapy target volumes, as well as dynamic risk warning during follow-up. This innovative technology provides a brand-new solution for realizing intelligent and individualized lung cancer diagnosis and treatment models. This consensus, based on the latest evidence from evidence-based medicine and combined with the development trends in the AI field and real-world clinical needs, was ultimately formed by gathering the consensus opinions of multidisciplinary experts in radiology, pathology, thoracic surgery, and other fields. The main content covers the application specifications of AI in the three core scenarios of lung cancer screening, diagnosis, and treatment, the technical standards for data collection and algorithm validation, as well as the ethical and regulatory challenges faced at the current stage. It aims to clarify the applicable boundaries of AI as a clinical auxiliary decision support tool, providing scientific guidance and standardized exploration directions for peers currently engaged in or planning to carry out AI-assisted clinical diagnosis, treatment, and translation of lung cancer.
3.Differences in deltamethrin resistance and kdr gene mutation in Culex tritaeniorhynchus population in and outside the Yellow Sea wetland
Xiao-er ZHANG ; Zhi-ming WU ; Ye TIAN ; Qian CUI ; Yu-qian JI ; Huan WANG ; Shu-juan YANG ; Yi-chao ZHAO ; Yu WANG ; Hua-yu YIN ; Yu DING ; Guo-jin YAN ; Min-sen ZHAO ; Shou-gang ZHANG ; Bing-dong SONG ; Hong-na CHEN ; Jian GAO ; Wei-fang YANG ; Yu-fu ZHANG ; Hui LIU ; Hong-liang CHU
Acta Parasitologica et Medica Entomologica Sinica 2026;33(2):101-107
Objective To gain insights into the biological characteristics of different populations of Culex tritaeniorhynchus within and around the Yellow Sea wetland from the perspective of the occurrence of resistance, we investigated the levels of resistance to deltamethrin and kdr gene mutation in the wetland and its peripheral areas. Methods Specimens were collected from Cx. tritaeniorhynchus populations at two monitoring sites in the Rare Bird National Nature Reserve and Tiaozi Ni Wetland Scenic Area, and also from two populations in Yancheng City and the Liuhe District of Nanjing, and the resistance of these mosquitoes to deltamethrin was determined using the CDC biotest bottle method. For each concentration of deltamethrin assessed, a random subset of exposed specimens was selected for amplification of the kdr gene fragment, followed by Sanger sequencing to identify and analyze resistance-associated mutations. Results The LC50 levels of deltamethrin among mosquitoes from the four populations in Luhe, Yancheng, the Rare Bird National Nature Reserve and the Tiaozi Ni Wetland Scenic Area were 2.048 5, 7.798 2, 3.473 3, and 17.695 5 mg/mL, respectively, with corresponding concentrations of deltamethrin ranging from 0.005 to 5.000,0.050 to 50.000,0.050 to 25.000 and 0.050 to 50.000 mg/mL, respectively. Furthermore, the ranges of the KT50 values were 11.76-107.43, 67.05-216.30,29.77-107.43 and 28.40-329.51 min; the 1-h knockdown rates were 34.58%-99.15%, 9.52%-43.80%, 55.09%-73.01%, and 10.09%-68.07%; and the 24-h mortality rates were 12.15%-67.52%,9.52%-79.56%,13.17%-82.21%, and 11.01%-78.99%, respectively. With respect to kdr gene mutation, we assayed a total of 63,70,59, and 57 mosquitoes for the four populations, for which we detected L1014F mutation frequencies of 14.29%, 35.00%, 20.34%, and 31.58%, respectively, with a majority of these mutations being heterozygous for resistance. In addition, five adult mosquitoes were identified has having synonymous mutations at site 1011[i. e. , AAT(asparagine)mutation to AAC(asparagine)]. Conclusions Our findings revealed the clear resistance of Cx. tritaeniorhynchus to deltamethrin in the Yancheng region of the Yellow Sea wetland, and the resistance phenotype and kdr frequency of Cx. tritaeniorhynchus in the wetland environment were comparable to those of Cx. tritaeniorhynchus in the wetland environment, thereby indicating that the resistance of different populations of Cx. tritaeniorhynchus was homogeneous under the pressure of different insecticide selection within and around the wetland. However, the underlying mechanisms need to be further studied.
4.Evaluation of CARIFS Score and Negative Antigen Conversion Rate of Qingxuan Daozhi Formula in Treatment of Influenza in Children (Heat Accumulation in Lung and Stomach Syndrome):A Multi-center Randomized Controlled Clinical Study
Jing WANG ; Liqun WU ; Tiegang LIU ; Yongning CAO ; Jing QIU ; Jing LI ; Huaqing TAN ; Ying ZHANG ; Xulei GOU ; Jia WANG ; Jing LI ; Haipeng CHEN ; Xueying QIN ; Yuanshuo TIAN ; Yang WANG ; Chen BAI ; Zhendong WANG ; Qianqian LI ; He YU ; Xueyan MA ; Fei DONG ; Lin JIANG ; Yingqi XU ; Jianping LIU ; Xiaohong GU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(13):188-196
ObjectiveThis paper aims to observe the syndrome improvement and negative antigen conversion rate of Qingxuan Daozhi formula in the treatment of influenza in children (heat accumulation in the lung and stomach syndrome). MethodsThrough a multi-center randomized controlled methodology design,confirmed influenza cases were collected from October 2022 to April 2023 in the pediatrics department of eight hospitals,such as Dongfang Hospital of Beijing University of Chinese Medicine. A total of 180 children with influenza and heat accumulation in the lung and stomach syndrome conforming to the standard were recruited through the clinic. The sick children meeting the inclusion criteria were randomly divided into groups by a block-randomized method. The children in the experimental group were treated with Qingxuan Daozhi formula for five days,and those in the control group were treated with Oseltamivir Phosphate Granules for five days. The primary efficacy indicator was the negative conversion rate of influenza antigen detection. Secondary efficacy indicators were the Canadian acute respiratory illness and flu scale (CARIFS) and the incidence of complications,severe cases, and critical cases. Follow-up observation was conducted on the day of enrollment,48 hours after medication,72 hours after medication, and (6+1) d after medication. ResultsOne hundred and eighty participants were randomly assigned to the experimental group (90 cases) or the control group (90 cases). All participants were followed up during the study. Comparison of influenza antigen detection results in the primary efficacy indicators showed that the average time of negative influenza antigen conversion in the experimental group was (5.29±1.25) d,and that in the control group was (5.40±1.68) d,without a statistically significant difference. After five days of intervention,52 cases in the experimental group and 51 cases in the control group converted to negative,without a statistically significant difference. CARIFS score results in the secondary efficacy indicators showed that during 72 hours after intervention,there were statistically significant differences between the experimental group and the control group in three dimensions, including headache,muscle soreness, and the need for extra care (P<0.05). On the (6+1) days after the intervention,the differences in both the experimental group and the control group were statistically significant in 10 dimensions, including sore throat,bad sleep,uncomfortable feeling,poor spirit and fatigue,crying more than usual,the need for extra care,symptom,function,influence on parents,and total score (P<0.05). The comparison results within the group in the dimensional scores of symptom, function, and influence on parents,as well as the CARIFS total score showed that with the delay of follow-up time,scores of both groups decreased significantly,with a statistically significant difference (P<0.01). Inter-group comparison results showed that the mean score of the experimental group was higher than that of the control group at the time of enrollment. With the progress of intervention,the score of the experimental group was significantly decreased compared with that of the control group. At the end of follow-up,the mean score of the experimental group was lower than that of the control group,with no statistically significant difference. In terms of the incidence of complications,severe cases, and critical cases, there were no complications,severe cases, and critical cases in the two groups,without a statistically significant difference. ConclusionThe symptom improvement effect and negative antigen conversion rate of Qingxuan Daozhi formula in the treatment of influenza in children (heat accumulation in the lung and stomach syndrome) are not inferior to Oseltamivir Phosphate granules, and children's acceptance is better. It can be more widely used in clinical treatment of influenza in children (heat accumulation in the lung and stomach syndrome).
5.Progress of researches on techniques for molecular detection of Clonorchis sinensis infections
Binbin XIE ; Yunhai GUO ; Xiaonen WU ; Zhiying HOU ; Yang HONG ; Tian TIAN ; Xiaonong ZHOU ; Junhu CHEN
Chinese Journal of Schistosomiasis Control 2026;38(3):323-329
Clonorchis sinensis primarily lives in the host liver and biliary system, leading to serious health issues, such as hepatobiliary lesions and cholangiocarcinoma. Establishment of rapid, sensitive and specific tools is of great significance for early diagnosis and management of clonorchiasis. Recently, molecular biological techniques have been widely used for detection of C. sinensis infections. This review summarizes the advances in the major molecular assays for detection of C. sinensis infections in intermediate and definite hosts, including PCR, loop-mediated isothermal amplification, clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated proteins system, and high-throughput sequencing, and summarizes the characteristics and application prospects of these assays, so as to provide precision detection and management of C. sinensis infection.
6.Mechanism of Huangqi Xiayuxue Decoction Against Hepatocellular Carcinoma via PI3K/Akt/FoxO Signaling Pathway
Xingru XING ; Yuanzhou SHI ; Jiawei WANG ; Di WU ; Yuyao ZHANG ; Yalin WU ; Du CHEN ; Zhen ZHANG ; Sha TIAN
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(20):131-141
ObjectiveTo explore the therapeutic effect and mechanism of Huangqi Xiayuxue decoction against hepatocellular carcinoma based on network pharmacology, animal experiments, and cell experiments. MethodsThe active ingredients and corresponding targets of Huangqi Xiayuxue decoction were screened via databases including the Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform (TCMSP) and Bioinformatics Analysis Tool for Molecular Mechanism of Traditional Chinese Medicine (BATMAN-TCM). Hepatocellular carcinoma-related targets were retrieved from the GeneCards database. The common targets shared by Huangqi Xiayuxue decoction and hepatocellular carcinoma were subjected to Gene Ontology (GO) functional annotation and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses. Huangqi Xiayuxue decoction-containing plasma was prepared. The cell counting kit-8 (CCK-8) assay was adopted to observe the effects of different volume fractions (5%, 10%, 15%, and 20%) of Huangqi Xiayuxue decoction-containing plasma on the proliferation of HepG2, MHCC-97H, Hepa1-6, and Huh-7 cells, and the concentration for subsequent experiments was determined. Flow cytometry was adopted to detect the effects of Huangqi Xiayuxue decoction-containing plasma (5%, 10%, 15%, and 20%) on the apoptosis of MHCC-97H cells. A mouse model of subcutaneous xenograft hepatocellular carcinoma was established. The model mice were assigned into low-, medium-, and high-dose (4.63, 9.25, 18.5 g·kg-1) Huangqi Xiayuxue decoction and sorafenib (20 mg·kg-1) groups. Body mass and tumor volume of mice were dynamically monitored during the intervention period. After 3 weeks of intervention, hematoxylin-eosin (HE) staining was performed to observe tumor morphology. Terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling (TUNEL) assay was employed to detect cell apoptosis. Immunohistochemistry (IHC) was adopted to examine the expression of cysteinyl aspartate-specific proteinase-3 (Caspase-3), B-cell lymphoma-2 (Bcl-2), and Bcl-2-associated X protein (Bax) in the tumor tissue. Real-time PCR and Western blot were employed to verify the changes in apoptosis-related factors and the phosphatidylinositol 3-kinase/protein kinase B/forkhead box O1 (PI3K/Akt/FoxO1) signaling pathway. ResultsA total of 220 common targets shared by Huangqi Xiayuxue decoction and hepatocellular carcinoma were screened out by network pharmacology, among which tumor protein p53 (TP53), Akt1, and signal transducer and activator of transcription 3 (STAT3) were the core targets. Pathway enrichment analysis indicated that the common targets were involved in cell apoptosis and proliferation, as well as the PI3K/Akt and FoxO signaling pathways. Cell experiments showed that compared with the blank plasma group, all volume fractions of Huangqi Xiayuxue decoction-containing plasma inhibited the proliferation of HepG2, MHCC-97H, Hepa1-6, and Huh-7 cells (P<0.01). The proportion of early apoptotic cells in MHCC-97H cells was increased after treatment with different volume fractions of Huangqi Xiayuxue decoction-containing plasma (P<0.01). Animal experiments revealed that Huangqi Xiayuxue decoction inhibited the growth of tumor volume, promoted tumor cell apoptosis in the high-dose group, up-regulated the protein and mRNA levels of Bax and Caspase-3, down-regulated the protein and mRNA levels of Bcl-2, and reduced the phosphorylation level of the PI3K/Akt/FoxO1 signaling pathway (P<0.05, P<0.01). ConclusionHuangqi Xiayuxue decoction exerts anti-hepatocellular carcinoma effects by inhibiting the activation of the PI3K/Akt/FoxO1 signaling pathway and promoting hepatocellular carcinoma cell apoptosis.
7.Mechanism of Huangqi Xiayuxue Decoction Against Hepatocellular Carcinoma via PI3K/Akt/FoxO Signaling Pathway
Xingru XING ; Yuanzhou SHI ; Jiawei WANG ; Di WU ; Yuyao ZHANG ; Yalin WU ; Du CHEN ; Zhen ZHANG ; Sha TIAN
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(20):131-141
ObjectiveTo explore the therapeutic effect and mechanism of Huangqi Xiayuxue decoction against hepatocellular carcinoma based on network pharmacology, animal experiments, and cell experiments. MethodsThe active ingredients and corresponding targets of Huangqi Xiayuxue decoction were screened via databases including the Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform (TCMSP) and Bioinformatics Analysis Tool for Molecular Mechanism of Traditional Chinese Medicine (BATMAN-TCM). Hepatocellular carcinoma-related targets were retrieved from the GeneCards database. The common targets shared by Huangqi Xiayuxue decoction and hepatocellular carcinoma were subjected to Gene Ontology (GO) functional annotation and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses. Huangqi Xiayuxue decoction-containing plasma was prepared. The cell counting kit-8 (CCK-8) assay was adopted to observe the effects of different volume fractions (5%, 10%, 15%, and 20%) of Huangqi Xiayuxue decoction-containing plasma on the proliferation of HepG2, MHCC-97H, Hepa1-6, and Huh-7 cells, and the concentration for subsequent experiments was determined. Flow cytometry was adopted to detect the effects of Huangqi Xiayuxue decoction-containing plasma (5%, 10%, 15%, and 20%) on the apoptosis of MHCC-97H cells. A mouse model of subcutaneous xenograft hepatocellular carcinoma was established. The model mice were assigned into low-, medium-, and high-dose (4.63, 9.25, 18.5 g·kg-1) Huangqi Xiayuxue decoction and sorafenib (20 mg·kg-1) groups. Body mass and tumor volume of mice were dynamically monitored during the intervention period. After 3 weeks of intervention, hematoxylin-eosin (HE) staining was performed to observe tumor morphology. Terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling (TUNEL) assay was employed to detect cell apoptosis. Immunohistochemistry (IHC) was adopted to examine the expression of cysteinyl aspartate-specific proteinase-3 (Caspase-3), B-cell lymphoma-2 (Bcl-2), and Bcl-2-associated X protein (Bax) in the tumor tissue. Real-time PCR and Western blot were employed to verify the changes in apoptosis-related factors and the phosphatidylinositol 3-kinase/protein kinase B/forkhead box O1 (PI3K/Akt/FoxO1) signaling pathway. ResultsA total of 220 common targets shared by Huangqi Xiayuxue decoction and hepatocellular carcinoma were screened out by network pharmacology, among which tumor protein p53 (TP53), Akt1, and signal transducer and activator of transcription 3 (STAT3) were the core targets. Pathway enrichment analysis indicated that the common targets were involved in cell apoptosis and proliferation, as well as the PI3K/Akt and FoxO signaling pathways. Cell experiments showed that compared with the blank plasma group, all volume fractions of Huangqi Xiayuxue decoction-containing plasma inhibited the proliferation of HepG2, MHCC-97H, Hepa1-6, and Huh-7 cells (P<0.01). The proportion of early apoptotic cells in MHCC-97H cells was increased after treatment with different volume fractions of Huangqi Xiayuxue decoction-containing plasma (P<0.01). Animal experiments revealed that Huangqi Xiayuxue decoction inhibited the growth of tumor volume, promoted tumor cell apoptosis in the high-dose group, up-regulated the protein and mRNA levels of Bax and Caspase-3, down-regulated the protein and mRNA levels of Bcl-2, and reduced the phosphorylation level of the PI3K/Akt/FoxO1 signaling pathway (P<0.05, P<0.01). ConclusionHuangqi Xiayuxue decoction exerts anti-hepatocellular carcinoma effects by inhibiting the activation of the PI3K/Akt/FoxO1 signaling pathway and promoting hepatocellular carcinoma cell apoptosis.
8.Comparative Genomic Analysis of Acinetobacter Baumannii from Different Sources in a Tertiary Hospital in Guangzhou
Kang LI ; Yanxian YANG ; Changbu WU ; Li SHAO ; Lanlan ZHONG ; Dingqiang CHEN ; Guobao TIAN
Journal of Sun Yat-sen University(Medical Sciences) 2026;47(3):518-527
ObjectiveTo compare the differences between clinical and environmental sources of Acinetobacter baumannii (AB) at a tertiary hospital in Guangzhou in terms of molecular epidemiological characteristics, antimicrobial resistance, disinfectant tolerance, virulence and the distribution of related genes, as well as plasmid epidemiological characteristics; and to assess the association between environmental and clinical strains and the potential transmission risks associated with environmental contamination. MethodsA total of 118 clinical and 102 environmental AB isolates were collected from a tertiary hospital in Guangzhou between 2024 and 2025. Species identification was performed using mass spectrometry and 16S rRNA sequencing; minimum inhibitory concentrations (MICs) for eight antimicrobial agents were determined using the agar dilution method; biofilm formation capacity was assessed using the crystal violet staining method; A Galleria mellonella infection model was used to evaluate the virulence; whole-genome sequencing was employed for multilocus sequence typing (MLST), phylogenetic analysis, and studies on the distribution of resistance, disinfectant resistance and virulence genes, and plasmid screening. ResultsA total of 38 known ST types were identified among the 220 AB strains, with ST2 and ST40 being the predominant lineages. Antimicrobial susceptibility testing revealed that the clinical infection group exhibited resistance to minocycline, imipenem and other antibiotics, as well as the tolerance levels to the disinfectants triclosan and benzalkonium bromide, were generally higher than those in the environmental group (P<0.001), and the detection rates of drug resistance genes such as blaOXA-23 and adeB all exceeded 70.0%. Statistical analysis confirmed that the MIC values of TCS and BAB were significantly positively correlated with various antibiotic resistance phenotypes (P<0.05). In biofilm experiments, the proportion of strong biofilm-forming strains in the environmental group (64.7%) was significantly higher than that in the clinical infection group (11.9%;χ²=69.06, df=2, P<0.000 1), and the mortality rate of the strains increased with enhanced biofilm-forming ability. Furthermore, a total of 41 plasmid lineages and 219 insertion sequences were detected; ISs such as IS1006 and IS1007 were frequently co-occurring with resistance and virulence genes including blaOXA-23 and katA. ConclusionsThe predominant lineages of AB in this tertiary hospital were ST2 and ST40. The clinical infection group generally exhibits higher levels of antibiotic resistance and tolerance to disinfectants compared to the environmental group, while biofilm-forming ability differs : the environmental group dominates in strong biofilm formation, and the clinical group dominates in weak to moderate biofilm formation. Plasmids and ISs may be involved in the co-occurrence and dissemination control strategies and for the molecular epidemiological surveillance of multidrug-resistant bacteria.
9.Investigations of tick habitats and potential pathogens carried in urban environments of Jiangsu Province
Zhi-ming WU ; Ye TIAN ; Wei-fang YANG ; Hong-na CHEN ; Jian GAO ; Hui LIU ; Yu-fu ZHANG ; Gan CAO ; Hong-liang CHU
Acta Parasitologica et Medica Entomologica Sinica 2026;33(3):192-197
Objective To investigate the species composition, distribution, density, and pathogen-carrying status of host-seeking ticks in urban environments of Jiangsu Province, and to provide a scientific basis for the prevention and control of tick-borne diseases in urban settings. Methods From April to September 2023, a survey on host-seeking ticks was conducted in three types of habitats (city parks, residential areas, and street greenbelts) across 54 counties (cities, districts) of 13 prefecture-level cities in Jiangsu Province by using the flagging method. RStudio 4.4.3 (Windows version) was employed to perform chi-square test analysis on the species composition of ticks across different months, and Friedman test (for multiple paired samples) was applied to analyze monthly changes in the average tick density index among different habitats. Quantitative real-time PCR was performed to detect pathogens in the captured ticks. Results A total of 863 host-seeking ticks were captured from 54 habitats in 24 counties (cities, districts) of 11 prefecture-level cities (Nanjing, Wuxi, Changzhou, Suzhou, Nantong, Huai'an, Yancheng, Yangzhou, Zhenjiang, Taizhou, and Suqian) in Jiangsu Province, whereas no ticks were captured in Xuzhou and Lianyungang. The collected ticks belonged to three species, with Haemaphysalis longicornis being the dominant species (accounting for 82.62%), followed by Haemaphysalis flava and Hae. phasiana. The average density index of ticks in positive habitats was 3.20 ticks/ (flag·100 m). In terms of tick density among prefecture-level cities, Wuxi had the highest density[13.55 ticks/(flag·100 m)], whereas Nanjing and Taizhou had the lowest[both,0.20 ticks/(flag·100 m)]. With respect to the types of positive habitats,46 positive city parks,7 positive residential areas, and 1 positive street greenbelt were found, with the average tick density index being 3.46, 1.86, and 3.60 ticks/flag · 100 m, respectively. No statistically significant differences were observed in the monthly variations in the average tick density index among different habitats (P>0.05). Pathogen detection showed no Bandavirus dabieense, Rickettsia, or Borrelia burgdorferi in the collected ticks. Conclusions Host-seeking ticks have established populations in urban environments across most prefecture-level cities in Jiangsu Province, with Hae. longicornis identified as the dominant species. City parks serve as the primary breeding habitats for these ticks. Strengthening tick surveillance and control measures in densely populated and frequently visited areas, such as city parks and residential neighborhoods, is crucial for the effective prevention and control of urban tick-borne diseases.
10.Prognostic impact of lymph node dissection modality in patients with ≤2 cm stage ⅠA STAS-positive lung adenocarcinoma
Xiao CHEN ; Hangcheng ZHOU ; Mingsheng WU ; Meiqing XU ; Tian LI ; Xiaohui SUN ; Zekai ZHANG ; Yu WANG ; Mingran XIE
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2026;33(10):1589-1594
Objective To investigate the effect of different lymph node dissection methods on the prognosis of patients with stage ⅠA spread through air spaces (STAS)-positive lung adenocarcinoma measuring ≤2 cm. Methods The clinical data of 3 148 patients with lung adenocarcinoma who underwent surgery at the Department of Thoracic Surgery, The First Affiliated Hospital of University of Science and Technology of China from 2016 to 2018 were retrospectively analyzed. Patients with stage ⅠA STAS-positive lung adenocarcinoma measuring ≤2 cm were included and divided into two groups based on the extent of lymph node dissection: a systematic lymph node dissection (SLND) group and a limited lymph node dissection (LLND) group. Clinicopathological data between the two groups were compared, and a Cox proportional hazards regression model was used for multivariate survival analysis. Results A total of 209 patients (98 males and 111 females) were included. The mean age was (60.42±10.15) years (ranging from 28 to 83 years). All patients successfully completed the surgery. Univariate analysis revealed that the extent of lymph node dissection, past medical history, and micropapillary histological subtype were influencing factors for prognosis. Multivariate analysis indicated that the extent of lymph node dissection, age, and the micropapillary histological subtype were independent influencing factors for prognosis. Furthermore, among STAS-positive patients, those in the SLND group exhibited a better prognosis compared to those in the LLND group. Conclusion The extent of lymph node dissection is an independent prognostic factor for patients with stage ⅠA STAS-positive lung adenocarcinoma measuring ≤2 cm.Performing SLND may be more beneficial for their long-term prognosis.


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