1.Protocol for patient version of the cancer symptom management guideline
Jing CHI ; Lanfang ZHANG ; Tingting YANG ; Shihui XIE ; Chaixiu LI ; Shisi DENG ; Jianyao TANG ; Chuhan ZHONG ; Bingqian GUO ; Qiuyan REN ; Yuman LI ; Zhengya QIN ; Ping ZHAO ; Yanni WU
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2026;33(06):900-907
Effective symptom management can alleviate the physical and psychological distress experienced by patients with cancer, improve quality of life, and contribute to treatment adherence and improve clinical outcomes. However, most existing guidelines are developed for healthcare professionals, and patients and the public have limited access to standardized and comprehensible guidance on symptom management. To address this gap and to facilitate effective communication and shared decision-making, this study proposes the development of a patient version of the cancer symptom management guideline. The development process will adhere to the methodological framework recommended by the Guidelines International Network and the World Health Organization. The GRADE approach will be employed to assess the certainty of evidence and to formulate recommendations. In addition, the process will be informed by the Appraisal of Guidelines for Research and Evaluation Ⅱ (AGREE Ⅱ) instrument and the Reporting Items for Practice Guidelines in Healthcare-Public or Patient Versions of Guidelines (RIGHT-PVG). This protocol outlines the establishment of the guideline working group, the identification and prioritization of key questions, evidence retrieval and appraisal, and the formulation of recommendations, with the aim of ensuring methodological rigor and transparency in the development of the patient guideline and providing methodological reference for similar guideline initiatives.
2.Differences in arousal threshold among obstructive sleep apnea patients of different genetic backgrounds and influencing factors
Rui ZHAO ; Ping YAO ; Zhiqiang ZHANG ; Zhiguo GUO ; Minqi XIE ; Hui DANG ; Yanrong JIA ; Jing CHENG ; Dongsheng LYU
Sichuan Mental Health 2026;39(3):240-245
BackgroundObstructive sleep apnea (OSA) represents a prevalent sleep disordered breathing condition characterized by complex pathophysiology. The arousal threshold (ArTH), a core non-anatomical contributor to OSA pathogenesis, is intimately tied to the disease severity and clinical phenotypes. To date, research regarding factors associated with ArTH has yielded inconsistent findings, and ArTH profiles and disparities across populations with different genetic backgrounds are not fully elucidated. ObjectiveTo explore the differences of ArTH in OSA patients with different genetic backgrounds and analyze the key factors affecting ArTH, thereby providing evidence for understanding OSA pathophysiology and formulating targeted treatment regimens. MethodsA total of 285 patients who met the diagnostic criteria for OSA, as defined by the Multidisciplinary Diagnosis and Treatment Guidelines for Adult Obstructive Sleep Apnea, were retrospectively enrolled in this study. All participants underwent overnight polysomnography (PSG) at the Sleep Medicine Center of Inner Mongolia Mental Health Center from December 2022 to May 2024. Based on the study design, the cohort was stratified into two distinct genetic background subgroups (group A and group B). Demographic and clinical characteristics, the Epworth Sleepiness Scale (ESS) score, and overnight PSG data were collected. The apnea hypopnea index (AHI), the lowest pulse oxygen saturation (LSpO2), and fraction of hypopneas (FHypopneas) were utilized as surrogate indicators to estimate ArTH in OSA patients. The influencing factors of low ArTH were tested by binary Logistic regression analysis. ResultsAmong the 285 OSA patients, there were 227 cases (79.65%) in group A and 58 cases (20.35%) in group B. Comparisons between the two genetic background subgroups revealed no statistically significant differences in the proportion of low ArTH, ESS score, PSG parameters, and the three markers for low ArTH (AHI<30 events/h, LSpO2>82.5%, FHypopneas>58.3%) (P>0.05). Binary Logistic regression analysis identified sex (OR=2.421, 95% CI: 1.070–5.478), BMI (OR=0.847, 95% CI: 0.770–0.932), N1 sleep duration (OR=0.974, 95% CI: 0.963–0.985), and hypertension (OR=0.348, 95% CI: 0.143–0.848) as independent factors associated with low ArTH in the total cohort. Stratified analysis by genetic backgrounds revealed that sex(OR=3.799, 95% CI: 1.389–10.392), BMI(OR=0.819, 95% CI:0.723–0.929), and N1 sleep duration(OR=0.973, 95% CI: 0.961–0.986) were independent factors of low ArTH in group A. In contrast, only N1 sleep duration (OR=0.951, 95% CI: 0.911–0.993) remained a significant factor in group B. ConclusionArthur may have conservative characteristics in patients with OSA with different genetic backgrounds, but the pathophysiological mechanism of OSA may have population heterogeneity. [Funded by Inner Mongolia Autonomous Region Natural Science Fundation Project (number, 2024QN08050); Intra-institutional Scientific Research Project of Inner Mongolia Mental Health Center (number, 2022QNWN0010)]
3.A Novel Risk Prediction Model for Chronic Atrophic Gastritis Based on Traditional Chinese Medicine Spleen Deficiency and Blood Stasis Syndromes and Gastric Stem Cell Dynamics
Qingqing ZHANG ; Di WU ; Fengyun GUO ; Shengnan YANG ; Ruiying ZHANG ; Lijing BAO ; Ping WANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(20):191-200
ObjectiveTo construct a risk prediction model for chronic atrophic gastritis (CAG) that combines disease and syndrome by integrating spleen deficiency and blood stasis syndrome scores, gastric stem cell marker analysis, and network pharmacology and to elucidate the mechanism link between spleen deficiency, blood stasis, and gastric stem cell dysregulation. MethodsA total of 60 patients were stratified into high-risk CAG, low-risk CAG, and non-atrophic groups based on the operative link for gastritis assessment (OLGA)/operative link for gastric intestinal metaplasia assessment (OLGIM) stages. General data and syndrome scores of the patients were collected. Immunohistochemistry was employed to measure the protein levels of leucine-rich repeat-containing G protein-coupled receptor 5 (LGR5), trefoil factor 2 (TFF2), and β-catenin in gastric mucosa across groups. Transcriptomic data (GSE130823) from the Gene Expression Omnibus (GEO) database were analyzed to validate the expression of these molecular markers at the gene level. A Firth penalized maximum likelihood logistic regression model was employed to integrate clinical, molecular, and TCM syndrome data to develop a CAG risk prediction model. Finally, network pharmacology analysis was conducted on spleen-invigorating herbs (Astragali Radix, Atractylodis Macrocephalae Rhizoma, and Dioscorea Rhizoma) and blood-activating herbs (Hedyotis diffusa, Salviae Miltiorrhizae Radix et Rhizoma, and Curcumae Rhizoma) to identify overlapping targets between these herbs and differentially expressed genes between low-grade intraepithelial neoplasia (LGIN) and gastritis, thereby clarifying the role of spleen deficiency and blood stasis in CAG progression from a pharmacological perspective. ResultsHigh-risk CAG patients exhibited higher blood stasis scores (4.60±1.50,2.62±1.32, P<0.01), progressive nuclear accumulation of β-catenin (A 0.28-0.53, P<0.01), and an increased LGR5+/TFF2+ ratio (A 1.02-1.92, P<0.01). Blood stasis scores were correlated with LGR5/TFF2 imbalance (P=0.03) and activation of the Wnt/β-catenin signaling pathway (CTNNB1 increase, log2=0.78). The integrated prediction model (blood stasis score≥5 + β-catenin>0.38 + LGR5/TFF2>1.5) outperformed a pure biomarker approach [Area Under the Curve (AUC) 0.92,0.89, ΔAUC=0.03, P=0.02]. Moreover, network pharmacology revealed 66 overlapping targets between spleen-invigorating/blood-activating herbs and LGIN, which were functionally enriched in mucosal repair and anti-oxidative stress, and negatively correlated with the Wnt/β-catenin signaling pathway (P<0.01). ConclusionThis study developed an integrated risk prediction model for CAG by combining TCM spleen deficiency and blood stasis syndromes with gastric stem cell molecular markers. Furthermore, it proposed for the first time the "blood stasis-Wnt/β-catenin-stem cell axis" hypothesis, preliminarily elucidating that spleen deficiency and blood stasis may exacerbate gastric stem cell dysregulation and promote malignant transformation of CAG through hypoxia-induced Wnt activation. This provides a theoretical foundation and a translational tool for risk stratification and multi-target TCM intervention in CAG.
4.A Novel Risk Prediction Model for Chronic Atrophic Gastritis Based on Traditional Chinese Medicine Spleen Deficiency and Blood Stasis Syndromes and Gastric Stem Cell Dynamics
Qingqing ZHANG ; Di WU ; Fengyun GUO ; Shengnan YANG ; Ruiying ZHANG ; Lijing BAO ; Ping WANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(20):191-200
ObjectiveTo construct a risk prediction model for chronic atrophic gastritis (CAG) that combines disease and syndrome by integrating spleen deficiency and blood stasis syndrome scores, gastric stem cell marker analysis, and network pharmacology and to elucidate the mechanism link between spleen deficiency, blood stasis, and gastric stem cell dysregulation. MethodsA total of 60 patients were stratified into high-risk CAG, low-risk CAG, and non-atrophic groups based on the operative link for gastritis assessment (OLGA)/operative link for gastric intestinal metaplasia assessment (OLGIM) stages. General data and syndrome scores of the patients were collected. Immunohistochemistry was employed to measure the protein levels of leucine-rich repeat-containing G protein-coupled receptor 5 (LGR5), trefoil factor 2 (TFF2), and β-catenin in gastric mucosa across groups. Transcriptomic data (GSE130823) from the Gene Expression Omnibus (GEO) database were analyzed to validate the expression of these molecular markers at the gene level. A Firth penalized maximum likelihood logistic regression model was employed to integrate clinical, molecular, and TCM syndrome data to develop a CAG risk prediction model. Finally, network pharmacology analysis was conducted on spleen-invigorating herbs (Astragali Radix, Atractylodis Macrocephalae Rhizoma, and Dioscorea Rhizoma) and blood-activating herbs (Hedyotis diffusa, Salviae Miltiorrhizae Radix et Rhizoma, and Curcumae Rhizoma) to identify overlapping targets between these herbs and differentially expressed genes between low-grade intraepithelial neoplasia (LGIN) and gastritis, thereby clarifying the role of spleen deficiency and blood stasis in CAG progression from a pharmacological perspective. ResultsHigh-risk CAG patients exhibited higher blood stasis scores (4.60±1.50,2.62±1.32, P<0.01), progressive nuclear accumulation of β-catenin (A 0.28-0.53, P<0.01), and an increased LGR5+/TFF2+ ratio (A 1.02-1.92, P<0.01). Blood stasis scores were correlated with LGR5/TFF2 imbalance (P=0.03) and activation of the Wnt/β-catenin signaling pathway (CTNNB1 increase, log2=0.78). The integrated prediction model (blood stasis score≥5 + β-catenin>0.38 + LGR5/TFF2>1.5) outperformed a pure biomarker approach [Area Under the Curve (AUC) 0.92,0.89, ΔAUC=0.03, P=0.02]. Moreover, network pharmacology revealed 66 overlapping targets between spleen-invigorating/blood-activating herbs and LGIN, which were functionally enriched in mucosal repair and anti-oxidative stress, and negatively correlated with the Wnt/β-catenin signaling pathway (P<0.01). ConclusionThis study developed an integrated risk prediction model for CAG by combining TCM spleen deficiency and blood stasis syndromes with gastric stem cell molecular markers. Furthermore, it proposed for the first time the "blood stasis-Wnt/β-catenin-stem cell axis" hypothesis, preliminarily elucidating that spleen deficiency and blood stasis may exacerbate gastric stem cell dysregulation and promote malignant transformation of CAG through hypoxia-induced Wnt activation. This provides a theoretical foundation and a translational tool for risk stratification and multi-target TCM intervention in CAG.
5.Development and Preliminary Evaluation of a Transition-to-Residency Curriculum for Surgical Residents
Tong NIU ; Jingcheng ZHANG ; Xuehan GAO ; Runzhu LIU ; Xiaoning SUN ; Yang SONG ; Lu PING ; Jie YI ; Chao GUO ; Xisheng WENG
Medical Journal of Peking Union Medical College Hospital 2026;17(5):1256-1264
This study aimed to systematically construct a transitional curriculum for newly recruited surgical residents and to evaluate its preliminary application outcomes through pre and postimplementation assessments, so as to provide practical references for the design and dissemination of such curricula. A singlecenter historical controlled design was adopted. Residents admitted in 2020 served as the traditional teaching group (preimplementation), while those admitted in 2024 served as the teaching reform group (postimplementation). Both groups completed selfadministered surveys three months after admission. Following Kern's sixstep approach, the transitional curriculum for surgical residents was developed based on needs assessment results, comprising 18 theoretical lectures and 3 practical skill training sessions, all delivered within the first three months after admission. Selfadministered questionnaires were used to assess clinical readiness and teaching satisfaction in both groups at three months postadmission. Betweengroup comparisons were performed using independent samples ttests, with Cohen's d effect sizes calculated, along with sensitivity analyses and power analyses. The teaching reform group ( The transitional curriculum developed in this study provides a systematized framework of theoretical instruction and foundational skills training for newly admitted surgical residents, and its feasibility has been preliminarily validated. Its effectiveness, however, warrants further confirmation through largersample, prospective studies with objective outcome measures.
6.Genomic characterization of a case of enterovirus D68 infection in a child from Tongzhou District, Beijing City
Bojun ZHEN ; Ping ZHANG ; Xiaochen GUO ; Jing ZHANG ; Yang ZHANG ; Xiang GAO ; Fang WANG ; Jie LI ; Lin ZOU
Chinese Journal of Preventive Medicine 2025;59(7):1108-1112
A throat swab sample from a pediatric case in Tongzhou District, Beijing was identified as enterovirus; the patient was a 1-year-and-8-month-old male sporadic case. Whole-genome sequencing revealed a viral genome length of 7 436 bp. BLAST alignment confirmed the serotype as EV-D68. Phylogenetic analysis of the whole genome indicated that this strain belongs to the B3 clade, showing closer genetic proximity to the 2018 Shanghai strain MW697453 with 99.53% whole-genome nucleotide homology. Genetic and amino acid variation analysis demonstrated that the B3 subclade to which this strain belongs exhibits a nucleotide deletion at positions 718–726, differing from deletion sites observed in other B3 clade strains. A key neuropathogenic amino acid site, T650A, was found to have undergone mutation. Recombination analysis confirmed no cross-clade recombination events in this strain. This study conducted genetic characterization of the strain's evolutionary relationship with EV-D68 strains from different regions and years in China, providing data support for formulating prevention and control measures against EV-D68 infection.
7.Mechanism of cordycepin in treatment of asthma based on network pharmacology and molecular docking technology
Man-ling JIANG ; Lei ZHANG ; Yao LIU ; Guo-ping LI ; Jin-wei HUANG
Chinese Pharmacological Bulletin 2025;41(11):2158-2166
Aim To explore the potential mechanisms underlying therapeutic effects of cordycepin in asthma by utilizing network pharmacology,molecular docking,and in vitro cellular validation.Methods The thera-peutic targets associated with asthma and the drug tar-gets of cordycepin were systematically identified through comprehensive database searches.An overlap analysis of the two gene sets was performed,followed by the construction of a protein-protein interaction(PPI)network and topological analysis to identify the core targets.The core targets were subjected to Kyoto Ency-clopedia of Genes and Genomes(KEGG)pathway a-nalysis and Gene Ontology(GO)enrichment analysis,and a drug-target-pathway network was constructed.To validate the interaction between cordycepin and core targets,molecular docking and molecular dynamics sim-ulations were conducted.Subsequently,the pharmaco-logical effects and underlying mechanisms of cordyce-pin were validated in vitro using Beas-2B cells,emplo-ying Cell Counting Kit-8(CCK-8)assay and quantita-tive real-time reverse transcription PCR(RT-qPCR).Results A total of 438 potential targets of cordycepin were identified,113 of which overlapped with asthma-related therapeutic targets.Topological analysis based on the PPI network revealed 22 core targets.Using KEGG enrichment analysis,165 significantly enriched pathways were identified,including the TNF and HIF-1 signaling pathways.Molecular docking analysis re-vealed high binding affinities between cordycepin and select core targets,which further corroborated by mo-lecular dynamics simulations.In vitro experiments showed that after cordycepin pretreatment,the upregu-lation of MAPK1,HIF1A,MTOR,MYC,IL10,and JUN mRNA was significantly rescued in HDM-stimulated Beas-2B cells.Conclusions Cordycepin exerts anti-asthmatic effects by targeting MAPK1 and other key molecules,thereby providing a scientific foundation for its further development and clinical application.
8.A network meta-analysis of efficacy of mesenchymal stem cells from different sources in treatment of premature ovarian failure animal models
Zhe LI ; Ping LI ; Chao ZHANG ; Guangling GUO
Chinese Journal of Tissue Engineering Research 2025;29(36):7898-7908
OBJECTIVE:Premature ovarian failure has manifested a trend of younger,and stem cell therapy has been progressively implemented in clinical practice in recent years.Nevertheless,given the extensive range of sources and variegated existence of stem cells in diverse tissues,certain disparities prevail in their biological characteristics and functions.In this paper,the therapeutic efficacies of dissimilar sources of mesenchymal stem cells on animal models of premature ovarian failure were contrasted,with the aim of providing a basis for the clinical application of stem cells.METHODS:The animal model experiments of mesenchymal stem cell therapy for premature ovarian failure were retrieved from PubMed,The Cochrane Library,and EMbase,as well as Chinese databases such as CNKI,WanFang,VIP,and China Biomedical Literature Service.The search period extended from the inception to December 31,2023.Two researchers independently screened the literature,extracted and analyzed the data.The quality of the included studies was evaluated by means of the SYRCLE animal experiment bias risk assessment table.Main outcome measures:Follicle stimulating hormone,estradiol,luteinizing hormone,the quantity of follicles at all levels.Secondary outcome measure:Pregnancy rate.Network meta-analysis,mapping,and tabulation were executed using Stata 17.0 software after assessing the risk of bias in the included studies.RESULTS:Totally 24 animal experiment studies were incorporated,and the overall quality of the literature was mediocre,encompassing 7 distinct sources of mesenchymal stem cells.They were umbilical cord-derived mesenchymal stem cells,menstrual blood-derived mesenchymal stem cells,placenta-derived mesenchymal stem cells,human cord blood-derived mesenchymal stem cells,bone marrow-derived mesenchymal stem cells,adipose-derived mesenchymal stem cells,and amnio-derived mesenchymal stem cells.The network meta-analysis demonstrated that(1)in contrast to the blank group,mesenchymal stem cells from various sources were effective in enhancing the pregnancy rate and estradiol,reducing follicle-stimulating hormone and luteinizing hormone,augmenting the number of follicles at all levels,and diminishing the number of atretic follicles.(2)According to the area map under the cumulative sequencing curve,the three stem cells with the most prominent efficacy in improving estradiol levels were umbilical cord-derived mesenchymal stem cells(72.7%)>adipose-derived mesenchymal stem cells(72.6%)>menstrual blood-derived mesenchymal stem cells(71.7%).(3)The three kinds of stem cells with the highest efficacy in reducing follicle-stimulating hormone levels were the adipose-derived mesenchymal stem cells(96.3%)>human cord blood-derived mesenchymal stem cells(65.4%)>umbilical cord-derived mesenchymal stem cells(63.9%).(4)The three kinds of stem cells with the highest efficacy in reducing luteinizing hormone levels were adipose-derived mesenchymal stem cells(100.0%)>umbilical cord-derived mesenchymal stem cells(51.6%)>human cord blood-derived mesenchymal stem cells(46.8%).(5)The top three kinds of stem cells for increasing the number of primordial follicles were human cord blood-derived mesenchymal stem cells(76.3%)>umbilical cord-derived mesenchymal stem cells(75.5%)>menstrual blood-derived mesenchymal stem cells(57.5%).(6)The top three kinds of stem cells for increasing the number of primary follicles were umbilical cord-derived mesenchymal stem cells(75.3%)>adipose-derived mesenchymal stem cells(53.0%)>the placenta-derived mesenchymal stem cells(51.7%).(7)The top three kinds of stem cells for increasing the number of secondary follicles were adipose-derived mesenchymal stem cells(76.1%)>menstrual blood-derived mesenchymal stem cells(66.8%)>umbilical cord-derived mesenchymal stem cells(66.5%).(8)The top three kinds of stem cells in reducing the number of atretic follicles were adipose-derived mesenchymal stem cells(99.9%)>bone marrow-derived mesenchymal stem cells(68.1%)>umbilical cord-derived mesenchymal stem cells(53.4%).CONCLUSION:(1)For animal models of premature ovarian failure,the results of the network meta-analysis disclosed that various stem cell transplantation treatments were preponderant over the blank or placebo group to varying extents,and the efficacies were comparable.(2)The results indicated that umbilical cord-derived mesenchymal stem cells were the most frequently utilized and adipose-derived mesenchymal stem cells were the most potent.More high-quality experimental study data are requisite in the future for further validation.
9.Effects of Hot Night Exposure on Human Semen Quality: A Multicenter Population-Based Study.
Ting Ting DAI ; Ting XU ; Qi Ling WANG ; Hao Bo NI ; Chun Ying SONG ; Yu Shan LI ; Fu Ping LI ; Tian Qing MENG ; Hui Qiang SHENG ; Ling Xi WANG ; Xiao Yan CAI ; Li Na XIAO ; Xiao Lin YU ; Qing Hui ZENG ; Pi GUO ; Xin Zong ZHANG
Biomedical and Environmental Sciences 2025;38(2):178-193
OBJECTIVE:
To explore and quantify the association of hot night exposure during the sperm development period (0-90 lag days) with semen quality.
METHODS:
A total of 6,640 male sperm donors from 6 human sperm banks in China during 2014-2020 were recruited in this multicenter study. Two indices (i.e., hot night excess [HNE] and hot night duration [HND]) were used to estimate the heat intensity and duration during nighttime. Linear mixed models were used to examine the association between hot nights and semen quality parameters.
RESULTS:
The exposure-response relationship revealed that HNE and HND during 0-90 days before semen collection had a significantly inverse association with sperm motility. Specifically, a 1 °C increase in HNE was associated with decreased sperm progressive motility of 0.0090 (95% confidence interval [ CI]: -0.0147, -0.0033) and decreased total motility of 0.0094 (95% CI: -0.0160, -0.0029). HND was significantly associated with reduced sperm progressive motility and total motility of 0.0021 (95% CI: -0.0040, -0.0003) and 0.0023 (95% CI: -0.0043, -0.0002), respectively. Consistent results were observed at different temperature thresholds on hot nights.
CONCLUSION
Our findings highlight the need to mitigate nocturnal heat exposure during spermatogenesis to maintain optimal semen quality.
Humans
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Male
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Semen Analysis
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Adult
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Sperm Motility
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Hot Temperature/adverse effects*
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China
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Middle Aged
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Spermatozoa/physiology*
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Young Adult
10.Changing antimicrobial resistance profiles of Burkholderia cepacia in hospitals across China:results from CHINET Antimicrobial Resistance Surveillance Program,2015-2021
Chunyue GE ; Yunjian HU ; Xiaoman AI ; Yang YANG ; Fupin HU ; Demei ZHU ; Yingchun XU ; Xiaojiang ZHANG ; Hui LI ; Ping JI ; Yi XIE ; Mei KANG ; Chuanqing WANG ; Pan FU ; Yuanhong XU ; Ying HUANG ; Ziyong SUN ; Zhongju CHEN ; Yuxing NI ; Jingyong SUN ; Yunzhuo CHU ; Sufei TIAN ; Zhidong HU ; Jin LI ; Yunsong YU ; Jie LIN ; Bin SHAN ; Yan DU ; Sufang GUO ; Lianhua WEI ; Fengmei ZOU ; Hong ZHANG ; Chun WANG ; Chao ZHUO ; Danhong SU ; Dawen GUO ; Jinying ZHAO ; Hua YU ; Xiangning HUANG ; Wen'en LIU ; Yanming LI ; Yan JIN ; Chunhong SHAO ; Xuesong XU ; Chao YAN ; Shanmei WANG ; Yafei CHU ; Lixia ZHANG ; Juan MA ; Shuping ZHOU ; Yan ZHOU ; Lei ZHU ; Jinhua MENG ; Fang DONG ; Zhiyong LÜ ; Fangfang HU ; Han SHEN ; Wanqing ZHOU ; Wei JIA ; Gang LI ; Jinsong WU ; Yuemei LU ; Jihong LI ; Jinju DUAN ; Jianbang KANG ; Xiaobo MA ; Yanping ZHENG ; Ruyi GUO ; Yan ZHU ; Yunsheng CHEN ; Qing MENG ; Shifu WANG ; Xuefei HU ; Jilu SHEN ; Wenhui HUANG ; Ruizhong WANG ; Hua FANG ; Bixia YU ; Yong ZHAO ; Ping GONG ; Kaizhen WENG ; Yirong ZHANG ; Jiangshan LIU ; Longfeng LIAO ; Hongqin GU ; Lin JIANG ; Wen HE ; Shunhong XUE ; Jiao FENG ; Chunlei YUE
Chinese Journal of Infection and Chemotherapy 2025;25(5):557-562
Objective To examine the changing prevalence and antimicrobial resistance profiles of Burkholderia cepacia in 52 hospitals across China from 2015 to 2021.Methods A total of 9 261 strains of B.cepacia were collected from 52 hospitals between January 1,2015 and December 31,2021.Antimicrobial susceptibility of the strains was tested using Kirby-Bauer method or automated antimicrobial susceptibility testing systems according to a unified protocol.The results were interpreted according to the breakpoints released in the Clinical & Laboratory Standards Institute(CLSI)guidelines(2023 edition).Results A total of 9 261 strains of B.cepacia were isolated from all age groups,especially elderly patients.The proportion was 11.1%(1 032 strains)in children,significantly lower than the proportion in adults.About half(46.5%,4 310/9 261)of the strains were isolated from patients at least 60 years old and 42.3%(3 919/9 261)of the strains were isolated from young adults.Most isolates(71.1%)were isolated from sputum and respiratory secretions,followed by urine(10.7%)and blood samples(8.1%).B.cepacia isolates were highly susceptible to the five antimicrobial agents recommended in the CLSI M100 document(33rd edition,2023).B.cepacia isolates showed relatively higher resistance rates to meropenem and levofloxacin.However,the resistance rates to ceftazidime,trimethoprim-sulfamethoxazole,and minocycline remained below 8.1%.The percentage of B.cepacia strains resistant to levofloxacin was the highest compared to other antibiotics in any of the three age groups(from 12.4%in the patients<18 years old to 20.6%in the patients aged 60 years or older).Conclusions B.cepacia is one of the clinically important non-fermenting gram-negative bacteria.Accurate and timely reporting of antimicrobial susceptibility test results and ongoing antimicrobial resistance surveillance are helpful for rational prescription of antimicrobial agents and proper prevention and control of nosocomial infections.

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