1.Compilation Instruction for Expert Consensus on Clinical Application of Binghuang Fule Ointment
Xin CUI ; Yanping BAI ; Ping SONG ; Yuanyuan LI ; Yanming XIE
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(8):267-273
Compilation instruction for Expert Consensus on Clinical Application of Binghuang Fule Ointment elaborates on the formulation methods and evidence-based basis of the consensus. To address the problems of insufficient evidence on efficacy, vague indications, and a lack of uniform standard for Binghuang Fule Ointment in clinical application, 34 experts from 29 medical institutions across China participated in the compilation under the lead of the Institute of Basic Research in Clinical Medicine and Xiyuan Hospital, China Academy of Chinese Medical Sciences, as well as China-Japan Friendship Hospital. The compilation strictly adhered to the WHO Handbook for Guideline Development (GB/T 1.1—2020), and the Guidance of Instructions for Compiling Expert Consensus on Clinical Practice of Chinese Patent Medicine. Through multidisciplinary collaboration, the compilation was completed using the Grading of Recommendations Assessment, Development and Evaluations (GRADE) evidence grading system. The detailed workflow included various key links. In clinical question construction, 15 items were screened by the nominal group method. In evidence retrieval, Chinese and English databases, along with gray literature, were covered to obtain 116 clinical and 33 pharmaceutical studies. In safety assessment, drug monitoring data and clinical research results were integrated, clarifying local adverse skin reactions and contraindications. Ultimately, 8 recommendations were formed by the GRADE grid method, while 16 consensus suggestions were reached via the majority vote rule. The results showed that the Binghuang Fule Ointment was applicable to eczema, psoriasis, neurodermatitis, tinea pedis, and other diseases. The Consensus also elucidated the syndrome differentiation points, usage and dosage for different diseases (such as adjustment of course and application frequency), as well as the indications of combination medication. Additionally, safety assessment suggested that the Ointment should be used with caution in individuals with skin ulceration or hypersensitivity. To ensure methodological rigor, the compilation process went through three rounds of internal and external expert reviews, while a comprehensive analysis was conducted by literature analysis, the Delphi method, and other methods. This compilation instruction provided methodological support for the clinical transformation of the Consensus through key links, including project initiation, international registration, informed consent, conflict-of-interest statements, evidence evaluation, and popularization. The Consensus will be continuously improved through a dynamic revision mechanism in the future.
2.Compilation Instruction for Expert Consensus on Clinical Application of Binghuang Fule Ointment
Xin CUI ; Yanping BAI ; Ping SONG ; Yuanyuan LI ; Yanming XIE
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(8):267-273
Compilation instruction for Expert Consensus on Clinical Application of Binghuang Fule Ointment elaborates on the formulation methods and evidence-based basis of the consensus. To address the problems of insufficient evidence on efficacy, vague indications, and a lack of uniform standard for Binghuang Fule Ointment in clinical application, 34 experts from 29 medical institutions across China participated in the compilation under the lead of the Institute of Basic Research in Clinical Medicine and Xiyuan Hospital, China Academy of Chinese Medical Sciences, as well as China-Japan Friendship Hospital. The compilation strictly adhered to the WHO Handbook for Guideline Development (GB/T 1.1—2020), and the Guidance of Instructions for Compiling Expert Consensus on Clinical Practice of Chinese Patent Medicine. Through multidisciplinary collaboration, the compilation was completed using the Grading of Recommendations Assessment, Development and Evaluations (GRADE) evidence grading system. The detailed workflow included various key links. In clinical question construction, 15 items were screened by the nominal group method. In evidence retrieval, Chinese and English databases, along with gray literature, were covered to obtain 116 clinical and 33 pharmaceutical studies. In safety assessment, drug monitoring data and clinical research results were integrated, clarifying local adverse skin reactions and contraindications. Ultimately, 8 recommendations were formed by the GRADE grid method, while 16 consensus suggestions were reached via the majority vote rule. The results showed that the Binghuang Fule Ointment was applicable to eczema, psoriasis, neurodermatitis, tinea pedis, and other diseases. The Consensus also elucidated the syndrome differentiation points, usage and dosage for different diseases (such as adjustment of course and application frequency), as well as the indications of combination medication. Additionally, safety assessment suggested that the Ointment should be used with caution in individuals with skin ulceration or hypersensitivity. To ensure methodological rigor, the compilation process went through three rounds of internal and external expert reviews, while a comprehensive analysis was conducted by literature analysis, the Delphi method, and other methods. This compilation instruction provided methodological support for the clinical transformation of the Consensus through key links, including project initiation, international registration, informed consent, conflict-of-interest statements, evidence evaluation, and popularization. The Consensus will be continuously improved through a dynamic revision mechanism in the future.
3.Expert Consensus on Clinical Application of SkinPro Ointment
Xin CUI ; Ping SONG ; Yuanyuan LI ; Yanping BAI ; Yanming XIE
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(9):163-170
SkinPro Ointment is an emulsion-based preparation derived from a traditional Tibetan medical empirical formula and developed using modern pharmaceutical technology. It is an exclusive patented product of Tibet Hairong Tangguo Pharmaceutical Co. Ltd. and has been listed as a National Protected Traditional Chinese Medicine Variety, the Pharmacopoeia of the People's Republic of China, and classified as a Category B product in the National Basic Medical Insurance Catalog. The ointment possesses the functions of clearing heat and drying dampness, activating blood circulation and dispelling wind, relieving itching and reducing inflammation. Clinically, it is used for skin pruritus caused by dampness-heat accumulation or blood-heat with wind-dryness, as well as pruritic skin diseases such as neurodermatitis, eczema, tinea pedis, and psoriasis. To clarify the standards for its clinical application and promote rational drug use, a consensus working group comprising 34 national experts in dermatology, evidence-based medicine, and pharmacy was established. Through expert interviews, the nominal group technique, and questionnaire surveys, 15 clinical issues were identified. The Grading of Recommendations Assessment, Development and Evaluation (GRADE) evidence grading system was employed to assess the quality of evidence, leading to the formulation of the Expert Consensus on the Clinical Application of SkinPro Ointment. This consensus specifies that the intended users are physicians and pharmacists in medical institutions at all levels. It standardizes the clinical application of the ointment, including syndrome characteristics, dosage and course of treatment, combination therapy, precautions, and contraindications. Recommendations and consensus suggestions were formed addressing the 15 clinical issues, covering the following key areas: ①Indications and TCM syndromes: In TCM, the ointment mainly treats conditions such as "damp sores" (Shichuang), "white scaling" (Baibi), "collar sores" (Shelingchuang), and "damp foot Qi" (Jiaoshiqi), corresponding to eczema, psoriasis, neurodermatitis, and tinea pedis in Western medicine. The relevant TCM syndromes are identified as dampness-heat accumulation or blood-heat with wind-dryness. ②Usage and dosage: For external use, apply to the affected area 3 times daily. The dosage should follow the fingertip unit (FTU) principle. A treatment course of 1-2 weeks is recommended for mild to moderate cases; for serious cases, the course should be followed as prescribed by a physician. ③Combined therapy: The ointment can be used as monotherapy for mild cases. For moderate to severe cases, combination therapy is recommended, with reference to relevant clinical guidelines. ④Safety: Common adverse reactions include skin rashes, pruritus, and erythema. The ointment is contraindicated in patients with broken skin or obvious exudation at the affected area, as well as in patients with known hypersensitivity to any of its components. Contact with sensitive areas such as the eyes and oral mucosa should be avoided. Modern research shows that the ointment also has potential efficacy in other dermatological conditions, such as adult atopic dermatitis, tinea cruris, exfoliative keratolysis, acne vulgaris, and Malassezia folliculitis. This consensus provides a scientific basis for promoting the rational clinical use of SkinPro Ointment, improving its therapeutic efficacy, and reducing medication risks. Future updates will be dynamically revised according to emerging clinical issues and new evidence.
4.Clinical phenotypes and genetic analysis of five children with Lamb-Shaffer syndrome due to novel variants of SOX5 gene.
Ziyan ZHANG ; Yaxue XIE ; Ping PANG ; Qiyan LIU ; Zhichao LI ; Guang YANG
Chinese Journal of Medical Genetics 2026;43(1):13-18
OBJECTIVE:
To explore the clinical phenotypes and genetic characteristics of five children with Lamb-Shaffer syndrome (LAMSHF).
METHODS:
Five children with LAMSHF diagnosed at the Department of Pediatrics, the First Medical Center of Chinese PLA General Hospital from April 2021 to December 2024 were selected as study subjects. Clinical data of the children was collected. Genomic DNA was extracted from peripheral blood samples of the children and their parents. Whole exome sequencing (WES) was carried out to screen for variants. This study was approved by the Medical Ethics Committee of the Chinese PLA General Hospital (Ethics No.: S2025-411-01).
RESULTS:
All five children had presented with global developmental delay. Among them, two had manifestations of autism spectrum disorder, two had abnormal electroencephalogram findings, four had abnormal MRI results, and two had ocular abnormalities. WES has detected five novel variants in the SOX5 gene. Among these, c.1771G>C (p.Gly591Arg) was unreported previously. Sanger sequencing confirmed that none of the parents had carried the same variants, suggesting that they were all de novo variants. According to the guidelines from the American College of Medical Genetics and Genomics (ACMG), two nonsense variants and one missense variant were classified as pathogenic, whilst two missense variants were classified as likely pathogenic.
CONCLUSION
This study has clarified the correlation between the clinical phenotypes of five children with LAMSHF and variants of the SOX5 gene, which expanded the mutational spectrum of the SOX5 gene and provided a basis for the clinical diagnosis and genetic counseling.
Humans
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Male
;
Female
;
Phenotype
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Child, Preschool
;
Child
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SOXD Transcription Factors/genetics*
;
Exome Sequencing
;
Mutation
;
Infant
5.Olfactory Receptors Expressed in The Intestine and Their Functions
Pei-Wen YANG ; Meng-Meng YUAN ; Ying ZHOU ; Peng LI ; Gui-Hong QI ; Ying YANG ; Zhong-Yi MAO ; Meng-Sha ZHOU ; Xiao-Shuang MAO ; Jian-Ping XIE ; Yi-Nan YANG ; Shi-Hao SUN
Progress in Biochemistry and Biophysics 2026;53(3):534-549
Olfactory receptors (ORs) form the largest superfamily of G protein-coupled receptors (GPCRs). Traditionally recognized for their role in the nasal olfactory epithelium, where they mediate the sense of smell, accumulating evidence has firmly established their ectopic expression in non-olfactory tissues, including the intestine, lungs, and kidneys. The intestine, as the primary site for nutrient digestion and absorption, harbors a highly complex chemical environment. To adapt to this environment, the gut employs a sophisticated network of “chemosensors” to monitor luminal contents and maintain homeostasis. Among these sensors, intestinal ORs have emerged as crucial functional components, serving as a molecular bridge that connects environmental chemical signals—such as food-derived odorants—to specific physiological responses. This discovery has significantly deepened our understanding of how dietary flavors and compounds influence intestinal physiology at the molecular level. This review systematically summarizes the expression profiles, ligand classification, and biological functions of ORs within the gastrointestinal tract. Studies indicate that intestinal ORs exhibit distinct spatial distribution patterns across different gut segments and display cell-type specificity, particularly within enterocytes and enteroendocrine cells. These receptors function as versatile sensors capable of recognizing a wide variety of ligands, including exogenous dietary components, gut microbiota metabolites such as short-chain fatty acids, and endogenous small molecules like azelaic acid. Upon activation by specific ligands, intestinal ORs trigger intracellular signaling cascades, primarily involving the AC-cAMP-PKA pathway or calcium influx channels. A major focus of this review is to elucidate the molecular mechanisms by which these receptors regulate the secretion of gut hormones. Activation of specific ORs in enteroendocrine cells has been shown to stimulate the release of hormones such as glucagon-like peptide-1 (GLP-1), peptide YY (PYY), and serotonin (5-HT), thereby modulating systemic energy metabolism, glucose homeostasis, and gastrointestinal motility. Furthermore, the review addresses the critical roles of ORs in immune regulation and pathology. Evidence suggests that specific ORs contribute to the maintenance of intestinal immune homeostasis and may offer protection against inflammation. Beyond their involvement in inflammatory responses, ORs such as Olfr78 have been shown to regulate the differentiation and function of intestinal endocrine cells. Similarly, Olfr544 has been demonstrated to alleviate intestinal inflammation by remodeling the gut microbiome and metabolome. These findings collectively suggest that specific ORs hold promise as therapeutic targets for mitigating intestinal inflammation and maintaining gut homeostasis. Additionally, the review explores the emerging role of ORs in cancer. Although OR expression is often downregulated in tumor tissues compared to normal mucosa, activation of specific ORs by certain ligands can inhibit tumor cell proliferation and migration and induce apoptosis via pathways such as MEK/ERK and p38 MAPK. Conversely, other receptors, such as OR7C1, may serve as biomarkers for cancer-initiating cells. In conclusion, intestinal ORs represent a vital component of the gut’s sensory network. The review also discusses the translational potential of these findings. By elucidating the precise pairing relationships between dietary components and specific ORs, novel therapeutic strategies could be developed. Intestinal ORs may thus emerge as promising targets for nutritional and pharmacological interventions in metabolic diseases, inflammatory bowel diseases, and malignancies.
6.Identification of chemical components and determination of vitexin in the raw powder of Tongluo Shenggu capsule
Gelin WU ; Ruixin FAN ; Chuling LIANG ; Leng XING ; Yongjian XIE ; Ping GONG ; Peng ZHOU ; BO LI
Journal of China Pharmaceutical University 2025;56(2):166-175
The present study employed UPLC-MS/MS to analyze and identify compounds in the raw powder of Tongluo Shenggu capsules. An HPLC method for the determination of vitexin content was established. The analysis of this drug was performed on a 30 ℃ thermostatic Acquity UPLC® BEH C18 (2.1 mm×100 mm,1.7 μm) column, with the mobile phase comprising 0.2% formic acid-methanol flowing at 0.3 mL /min in a gradient elution manner. Mass spectrometry was detected by ESI sources in both positive and negative ion modes for qualitative identification of chemical constituents. 12 flavonoid and 3 stilbenes compounds in the raw powder of Tongluo Shenggu capsules were successfully identified. Additionally, an HPLC method for the determination of vitexin content was established using a XBridge C18 column (4.6 mm × 250 mm, 5 µm) with a mobile phase of 0.05% glacial acetic acid in methanol for gradient elution, at a column temperature of 30 °C, a flow rate of 1.0 mL/min, and an injection volume of 20 μL. The method demonstrated good linearity in the concentration range of 10 µg/mL to 40 µg/mL (R=1.000) with an average recovery rate of 96.7%. The establishment of these methods provides a scientific basis for the quality control and development of the raw powder of Tongluo Shenggu capsules.
7.Effects and mechanism of Tianma xiongling zhixuan tablet on autophagy of vascular endothelial cells
Sunan YONG ; Chi FANG ; Yuanxiong LONG ; Ping LI ; Xiaobing XIE
China Pharmacy 2025;36(14):1737-1742
OBJECTIVE To explore the effects of Tianma xiongling zhixuan tablet on autophagy in vascular endothelial cells of rats and its potential mechanism. METHODS The rat aortic endothelial cells (RAECs) were divided into normal group, model group, blank serum group, traditional Chinese medicine (TCM) medicated serum group, autophagy blocker group, autophagy agonist group, and TCM combined with autophagy agonist group. Except for normal group, other groups were given 10 μg/mL lipopolysaccharide for 24 hours to induce RAECs inflammation injury model. Blank serum group was treated with 10% blank serum; TCM medicated serum group received 10% medicated serum derived from Tianma xiongling zhixuan tablet; autophagy blocker group was treated with 20 μmol/L of PD98059; autophagy agonist group was administered 50 μmol/L Honokiol. Lastly, the TCM combined with autophagy agonist group was given both 10% medicated serum derived from Tianma xiongling zhixuan tablet and 50 μmol/L Honokiol. The morphological characteristics of RAECs in each group were observed. The cell viability of each group, the contents of endothelin-1 (ET-1) and nitric oxide (NO), mitochondrial reactive oxygen species, mitochondrial membrane potential, and the expression levels of PTEN-induced kinase 1 (PINK1), Parkin, ubiquitin-binding protein (p62), and microtubule-associated protein 1 light chain 3 (LC3) were detected. RESULTS Compared with model group, the levels of ET-1, mitochondrial reactive oxygen species, and the relative expressions of PINK1, Parkin, and LC3 proteins in the autophagy blocker group and TCM medicated serum group were decreased or down-regulated significantly (P<0.05 or P<0.01); the cell viability rate (only autophagy blocker group), NO level, mitochondrial membrane potential, and the E-mail:46164660@qq.com relative expression level of p62 protein were increased or up-regulated significantly (P<0.05 or P<0.01); the pathological damage of RAECs was significantly improved, the number of cells increased significantly, and the typical paving stone-like characteristics were restored. The levels of ET-1, mitochondrial reactive oxygen species, and the relative expression levels of Parkin and LC3 proteins in the autophagy agonist group were increased or up-regulated significantly (P<0.05 or P<0.01), while cell viability rate was decreased significantly (P<0.05), the damage of RAECs was aggravated. Compared with the autophagy agonist group, the cell viability rate and the relative expression level of p62 protein in TCM combined autophagy agonist group were increased or up-regulated significantly (P<0.05 or P<0.01), while the levels of ET-1, the relative expression levels of PINK1, Parkin, and LC3 proteins were down-regulated significantly (P< 0.01), the damage of RAECs was reversed to a certain extent. CONCLUSIONS Tianma xiongling zhixuan tablet protects vascular endothelial function by regulating mitochondrial autophagy, the mechanism of which may be associated with the regulation of PINK1/Parkin signaling pathway and the inhibition of mitochondrial autophagy.
8.Chaihu and Longgu Mulitang Regulates ERK/CREB Signaling Pathway to Ameliorate Hippocampal Nerve Injury in Mouse Model of Depression
Shiyu JI ; Li WANG ; Zhuo ZHANG ; Yingzhe GAO ; Zefeng ZHANG ; Siyu CHEN ; Guangjing XIE ; Ping WANG ; Panpan HUANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(22):1-9
ObjectiveTo investigate the effects of Chaihu and Longgu Mulitang (CLMT) on hippocampal neural damage in the mouse model of depression via the extracellular signal-regulated protein kinase (ERK)/cAMP-response element-binding protein (CREB) signaling pathway. MethodsSeventy-eight male C57BL/6 mice were randomly allocated into normal control, model, low/medium/high-dose (2.89, 5.78, and 11.56 g·kg-1, respectively) CLMT, and paroxetine (10 mg·kg-1) groups. A depression model was established by chronic unpredictable mild stress (CUMS) combined with social isolation. Behavioral tests were carried out to evaluate depressive-like behaviors. Hematoxylin-eosin staining and Nissl staining were performed to assess hippocampal morphology and neuronal damage. Immunofluorescence was employed to detect glial fibrillary acidic protein (GFAP) and ionized calcium-binding adapter molecule 1 (Iba1). Real-time PCR was employed to measure the mRNA levels of ERK and CREB. Western blot was employed to determine the expression of ERK/CREB pathway proteins and brain-derived neurotrophic factor (BDNF) in the hippocampal tissue. Molecular Operating Environment (MOE) software was used for molecular docking to evaluate the interactions between CLMT components and target proteins. ResultsCompared with the normal control group, the model group showed decreased sucrose preference (P0.01), increased tail-suspension immobility time (P0.01), decreased activity in the central region of the open field test (P0.01), and decreased activity in the middle and open-arm region of the elevated plus maze test (P0.01). The hippocampal area in the model group showed wrinkled cells and a reduction in the number of cells, neurons with reduced sizes and Nissl bodies, enhanced fluorescence intensity of GFAP and Iba1 (P0.01), and down-regulated expression of phosphorylated (p)-ERK, p-CREB, and BDNF (P0.05, P0.01) and mRNA levels of ERK and CREB (P0.01). Compared with the model group, the CLMT group showed increased body weight (P0.05, P0.01), restored cell morphology, with only a small number of ruptured cells, normal neuronal structure and morphology with obvious nuclei and abundant Nissl bodies, weakened fluorescence intensity of GFAP and Iba1 (P0.05, P0.01), up-regulated mRNA levels of ERK and CREB (P0.05, P0.01) and protein levels of phosphorylated (p)-ERK, p-CREB, and BDNF in the hippocampal tissue (P0.05, P0.01). The results of molecular docking indicated that nine active ingredients in CLMT had good binding affinity with ERK and CREB. ConclusionCLMT may ameliorate the hippocampal nerve injury in the mouse model of depression by regulating the ERK/CREB pathway.
9.Distribution and resistance profiles of bacterial strains isolated from cerebrospinal fluid in hospitals across China:results from the CHINET Antimicrobial Resistance Surveillance Program,2015-2021
Juan MA ; Lixia ZHANG ; Yang YANG ; Fupin HU ; Demei ZHU ; Han SHEN ; Wanqing ZHOU ; Wenen LIU ; Yanming LI ; Yi XIE ; Mei KANG ; Dawen GUO ; Jinying ZHAO ; Zhidong HU ; Jin LI ; Shanmei WANG ; Yafei CHU ; Yunsong YU ; Jie LIN ; Yingchun XU ; Xiaojiang ZHANG ; Jihong LI ; Bin SHAN ; Yan DU ; Ping JI ; Fengbo ZHANG ; Chao ZHUO ; Danhong SU ; Lianhua WEI ; Fengmei ZOU ; Xiaobo MA ; Yanping ZHENG ; Yuanhong XU ; Ying HUANG ; Yunzhuo CHU ; Sufei TIAN ; Hua YU ; Xiangning HUANG ; Sufang GUO ; Xuesong XU ; Chao YAN ; Fangfang HU ; Yan JIN ; Chunhong SHAO ; Wei JIA ; Gang LI ; Jinsong WU ; Yuemei LU ; Fang DONG ; Zhiyong LÜ ; Lei ZHU ; Jinhua MENG ; Shuping ZHOU ; Yan ZHOU ; Chuanqing WANG ; Pan FU ; Yunjian HU ; Xiaoman AI ; Ziyong SUN ; Zhongju CHEN ; Hong ZHANG ; Chun WANG ; Yuxing NI ; Jingyong SUN ; Kaizhen WEN ; Yirong ZHANG ; Ruyi GUO ; Yan ZHU ; Jinju DUAN ; Jianbang KANG ; Xuefei HU ; Shifu WANG ; Yunsheng CHEN ; Qing MENG ; Yong ZHAO ; Ping GONG ; Ruizhong WANG ; Hua FANG ; Jilu SHEN ; Jiangshan LIU ; Hongqin GU ; Jiao FENG ; Shunhong XUE ; Bixia YU ; Wen HE ; Lin JIANG ; Longfeng LIAO ; Chunlei YUE ; Wenhui HUANG
Chinese Journal of Infection and Chemotherapy 2025;25(3):279-289
Objective To investigate the distribution and antimicrobial resistance profiles of common pathogens isolated from cerebrospinal fluid(CSF)in CHINET program from 2015 to 2021.Methods The bacterial strains isolated from CSF were identified in accordance with clinical microbiology practice standards.Antimicrobial susceptibility test was conducted using Kirby-Bauer method and automated systems per the unified CHINET protocol.Results A total of 14 014 bacterial strains were isolated from CSF samples from 2015 to 2021,including the strains isolated from inpatients(95.3%)and from outpatient and emergency care patients(4.7%).Overall,19.6%of the isolates were from children and 80.4%were from adults.Gram-positive and Gram-negative bacteria accounted for 68.0%and 32.0%,respectively.Coagulase negative Staphylococcus accounted for 73.0%of the total Gram-positive bacterial isolates.The prevalence of MRSA was 38.2%in children and 45.6%in adults.The prevalence of MRCNS was 67.6%in adults and 69.5%in children.A small number of vancomycin-resistant Enterococcus faecium(2.2%)and linezolid-resistant Enterococcus faecalis(3.1%)were isolated from adult patients.The resistance rates of Escherichia coli and Klebsiella pneumoniae to ceftriaxone were 52.2%and 76.4%in children,70.5%and 63.5%in adults.The prevalence of carbapenem-resistant E.coli and K.pneumoniae(CRKP)was 1.3%and 47.7%in children,6.4%and 47.9%in adults.The prevalence of carbapenem-resistant Acinetobacter baumannii(CRAB)and Pseudomonas aeruginosa(CRPA)was 74.0%and 37.1%in children,81.7%and 39.9%in adults.Conclusions The data derived from antimicrobial resistance surveillance are crucial for clinicians to make evidence-based decisions regarding antibiotic therapy.Attention should be paid to the Gram-negative bacteria,especially CRKP and CRAB in central nervous system(CNS)infections.Ongoing antimicrobial resistance surveillance is helpful for optimizing antibiotic use in CNS infections.
10.Changing antibiotic resistance profiles of the bacterial strains isolated from geriatric patients in hospitals across China:data from CHINET Antimicrobial Resistance Surveillance Program,2015-2021
Xiaoman AI ; Yunjian HU ; Chunyue GE ; 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(3):290-302
Objective To investigate the antimicrobial resistance of clinical isolates from elderly patients(≥65 years)in major medical institutions across China.Methods Bacterial strains were isolated from elderly patients in 52 hospitals participating in the CHINET Antimicrobial Resistance Surveillance Program during the period from 2015 to 2021.Antimicrobial susceptibility test was carried out by disk diffusion method and automated systems according to the same CHINET protocol.The data were interpreted in accordance with the breakpoints recommended by the Clinical and Laboratory Standards Institute(CLSI)in 2021.Results A total of 514 715 nonduplicate clinical isolates were collected from elderly patients in 52 hospitals from January 1,2015 to December 31,2021.The number of isolates accounted for 34.3%of the total number of clinical isolates from all patients.Overall,21.8%of the 514 715 strains were gram-positive bacteria,and 78.2%were gram-negative bacteria.Majority(90.9%)of the strains were isolated from inpatients.About 42.9%of the strains were isolated from respiratory specimens,and 22.9%were isolated from urine.More than half(60.7%)of the strains were isolated from male patients,and 39.3%isolated from females.About 51.1%of the strains were isolated from patients aged 65-<75 years.The prevalence of methicillin-resistant strains(MRSA)was 38.8%in 32 190 strains of Staphylococcus aureus.No vancomycin-or linezolid-resistant strains were found.The resistance rate of E.faecalis to most antibiotics was significantly lower than that of Enterococcus faecium,but a few vancomycin-resistant strains(0.2%,1.5%)and linezolid-resistant strains(3.4%,0.3%)were found in E.faecalis and E.faecium.The prevalence of penicillin-susceptible S.pneumoniae(PSSP),penicillin-intermediate S.pneumoniae(PISP),and penicillin-resistant S.pneumoniae(PRSP)was 94.3%,4.0%,and 1.7%in nonmeningitis S.pneumoniae isolates.The resistance rates of Klebsiella spp.(Klebsiella pneumoniae 93.2%)to imipenem and meropenem were 20.9%and 22.3%,respectively.Other Enterobacterales species were highly sensitive to carbapenem antibiotics.Only 1.7%-7.8%of other Enterobacterales strains were resistant to carbapenems.The resistance rates of Acinetobacter spp.(Acinetobacter baumannii 90.6%)to imipenem and meropenem were 68.4%and 70.6%respectively,while 28.5%and 24.3%of P.aeruginosa strains were resistant to imipenem and meropenem,respectively.Conclusions The number of clinical isolates from elderly patients is increasing year by year,especially in the 65-<75 age group.Respiratory tract isolates were more prevalent in male elderly patients,and urinary tract isolates were more prevalent in female elderly patients.Klebsiella isolates were increasingly resistant to multiple antimicrobial agents,especially carbapenems.Antimicrobial resistance surveillance is helpful for accurate empirical antimicrobial therapy in elderly patients.

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