1.Role of miR-140-5p/BCL2L1 in apoptosis and autophagy of HFOB1.19 and effect of Bushen Jianpi Huoxue Decoction.
Tong-Ying CHEN ; Sai FU ; Xiao-Yun LI ; Shu-Hua LIU ; Yi-Fu YANG ; Dong-Sheng YANG ; Yun-Jie ZENG ; Yang-Bo LI ; Dan LUO ; Hong-Xing HUANG ; Lei WAN
China Journal of Chinese Materia Medica 2025;50(3):583-589
Osteoporosis(OP) is a senile bone disease characterized by an imbalance between bone remodeling and bone formation. Targeting pathogenesis of kidney deficiency, spleen deficiency, and blood stasis, Bushen Jianpi Huoxue Decoction has a significant effect on the treatment of OP by tonifying kidney, invigorating spleen, and activating blood circulation. MicroRNA(miRNA) and the anti-apoptotic protein B-cell lymphoma-2-like protein 1(BCL2L1) are closely related to bone cell metabolism. Therefore, in this study, the binding of miR-140-5p to BCL2L1 was detected by dual luciferase assay and polymerase chain reaction(PCR). After silencing or overexpressing miR-140-5p, the apoptosis, autophagy, and osteogenic function of human fetal osteoblast cell line 1.19(HFOB1.19) were observed by flow cytometry and Western blot. Bushen Jianpi Huoxue Decoction-containing serum was prepared by intragastric administration of Bushen Jianpi Huoxue Decoction in rats. Different concentrations of Bushen Jianpi Huoxue Decoction-containing serum were used to treat HFOB1.19 with or without miR-140-5p mimic. The expression of osteogenic proteins in each group was observed, and the role of miR-140-5p/BCL2L1 in apoptosis and autophagy of HFOB1.19 was studied, along with the effect of Bushen Jianpi Huoxue Decoction on these processes. As indicated by the dual luciferase assay, miR-140-5p bound to BCL2L1. Flow cytometry and Western blot showed that miR-140-5p promoted apoptosis and inhibited autophagy in HFOB1.19. After intervention with high, medium, and low doses of Bushen Jianpi Huoxue Decoction-medicated serum, compared with the miR-140-5p NC group, the expression of osteocalcin(OCN), osteopontin(OPN), Runt-related transcription factor 2(RUNX2), and transforming growth factor beta 1(TGF-β1) decreased in the miR-140-5p mimic group, while the expression of bone morphogenetic protein 2(BMP2) showed no significant difference under high-dose intervention. Therefore, miR-140-5p/BCL2L1 can promote apoptosis and inhibit autophagy in HFOB1.19. Bushen Jianpi Huoxue Decoction can affect the osteogenic effect of miR-140-5p through BMP2.
MicroRNAs/metabolism*
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Autophagy/drug effects*
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Apoptosis/drug effects*
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Humans
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Drugs, Chinese Herbal/administration & dosage*
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Animals
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Cell Line
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bcl-X Protein/metabolism*
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Osteoblasts/metabolism*
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Rats
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Osteoporosis/physiopathology*
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Male
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Rats, Sprague-Dawley
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Osteogenesis/drug effects*
2.Observation on the therapeutic effect of a modified Devine procedure with subcutaneous sliding fixation method for concealed penis.
Mohammed Abdulkarem AL-QAISI ; Hai-Fu TIAN ; Jia-Jin FENG ; Ke-Ming CHEN ; Jin ZHANG ; Yun-Shang TUO ; Xue-Hao WANG ; Bin-Cheng HUANG ; Muhammad Arslan Ul HASSAN ; Rui HE ; Guang-Yong LI
Asian Journal of Andrology 2025;27(4):470-474
To evaluate the therapeutic effect of a modified Devine procedure with a subcutaneous sliding fixation method for the treatment of congenital concealed penis, we retrospectively selected 45 patients with congenital concealed penises who were admitted to General Hospital of Ningxia Medical University (Yinchuan, China) between September 2020 and November 2023. In all cases, the penis was observed to be short, and retracting the skin at the base revealed a normal penile body, which immediately returned to its original position upon release. All patients underwent the modified Devine procedure with subcutaneous sliding fixation and completed a 12-week postoperative follow-up. A statistically significant increase in penile length was observed postoperatively, with the median length increasing from 4.0 (interquartile range [IQR]: 3.5-4.8; 95% confidence interval [CI]: 3.9-4.4) cm to 8.0 (IQR: 7.8-8.0; 95% CI: 7.7-7.9) cm, with P < 0.001. The parents were satisfied with the outcomes, including increased penile length, improved hygiene, and enhanced esthetics. Except for mild foreskin edema in all cases, no complications (such as infections, skin necrosis, or penile retraction) were observed. The edema was resolved within 4 weeks after the operation. This study demonstrates that the modified Devine procedure utilizing the subcutaneous sliding fixation method yields excellent outcomes with minimal postoperative complications, reduced penile retraction, and high satisfaction rates among patients and their families.
Humans
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Male
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Penis/abnormalities*
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Retrospective Studies
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Urologic Surgical Procedures, Male/methods*
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Treatment Outcome
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Child
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Plastic Surgery Procedures/methods*
3.Air pollution exposure associated with decline rates in skeletal muscle mass and grip strength and increase rate in body fat in elderly: a 5-year follow-up study.
Chi-Hsien CHEN ; Li-Ying HUANG ; Kang-Yun LEE ; Chih-Da WU ; Shih-Chun PAN ; Yue Leon GUO
Environmental Health and Preventive Medicine 2025;30():56-56
BACKGROUND:
The effect of air pollution on annual change rates in grip strength and body composition in the elderly is unknown.
OBJECTIVES:
This study evaluated the effects of long-term exposure to ambient air pollution on change rates of grip strength and body composition in the elderly.
METHODS:
In the period 2016-2020, grip strength and body composition were assessed and measured 1-2 times per year in 395 elderly participants living in the Taipei basin. Exposure to ambient fine particulate matters (PM2.5), nitric dioxide (NO2), and ozone (O3) from 2015 to 2019 was estimated using a hybrid Kriging/Land-use regression model. In addition, long-term exposure to carbon monoxide (CO) was estimated using an ordinary Kriging approach. Associations between air pollution exposures and annual changes in health outcomes were analyzed using linear mixed-effects models.
RESULTS:
An inter-quartile range (4.1 µg/m3) increase in long-term exposure to PM2.5 was associated with a faster decline rate in grip strength (-0.16 kg per year) and skeletal muscle mass (-0.14 kg per year), but an increase in body fat mass (0.21 kg per year). The effect of PM2.5 remained robust after adjustment for NO2, O3 and CO exposure. In subgroup analysis, the PM2.5-related decline rate in grip strength was greater in participants with older age (>70 years) or higher protein intake, whereas in skeletal muscle mass, the decline rate was more pronounced in participants having a lower frequency of moderate or strenuous exercise. The PM2.5-related increase rate in body fat mass was higher in participants having a lower frequency of strenuous exercise or soybean intake.
CONCLUSIONS
Among the elderly, long-term exposure to ambient PM2.5 is associated with a faster decline in grip strength and skeletal muscle mass, and an increase in body fat mass. Susceptibility to PM2.5 may be influenced by age, physical activity, and dietary protein intake; however, these modifying effects vary across different health outcomes, and further research is needed to clarify their mechanisms and consistency.
Humans
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Hand Strength
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Aged
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Male
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Female
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Environmental Exposure/adverse effects*
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Follow-Up Studies
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Taiwan
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Air Pollution/adverse effects*
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Particulate Matter/adverse effects*
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Muscle, Skeletal/drug effects*
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Air Pollutants/adverse effects*
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Ozone/adverse effects*
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Aged, 80 and over
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Adipose Tissue/drug effects*
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Body Composition/drug effects*
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Nitrogen Dioxide/adverse effects*
4.Long-term hypomethylating agents in patients with myelodysplastic syndromes: a multi-center retrospective study
Xiaozhen LIU ; Shujuan ZHOU ; Jian HUANG ; Caifang ZHAO ; Lingxu JIANG ; Yudi ZHANG ; Chen MEI ; Liya MA ; Xinping ZHOU ; Yanping SHAO ; Gongqiang WU ; Xibin XIAO ; Rongxin YAO ; Xiaohong DU ; Tonglin HU ; Shenxian QIAN ; Yuan LI ; Xuefen YAN ; Li HUANG ; Manling WANG ; Jiaping FU ; Lihong SHOU ; Wenhua JIANG ; Weimei JIN ; Linjie LI ; Jing LE ; Wenji LUO ; Yun ZHANG ; Xiujie ZHOU ; Hao ZHANG ; Xianghua LANG ; Mei ZHOU ; Jie JIN ; Huifang JIANG ; Jin ZHANG ; Guifang OUYANG ; Hongyan TONG
Chinese Journal of Hematology 2024;45(8):738-747
Objective:To evaluate the efficacy and safety of hypomethylating agents (HMA) in patients with myelodysplastic syndromes (MDS) .Methods:A total of 409 MDS patients from 45 hospitals in Zhejiang province who received at least four consecutive cycles of HMA monotherapy as initial therapy were enrolled to evaluate the efficacy and safety of HMA. Mann-Whitney U or Chi-square tests were used to compare the differences in the clinical data. Logistic regression and Cox regression were used to analyze the factors affecting efficacy and survival. Kaplan-Meier was used for survival analysis. Results:Patients received HMA treatment for a median of 6 cycles (range, 4-25 cycles) . The complete remission (CR) rate was 33.98% and the overall response rate (ORR) was 77.02%. Multivariate analysis revealed that complex karyotype ( P=0.02, OR=0.39, 95% CI 0.18-0.84) was an independent favorable factor for CR rate. TP53 mutation ( P=0.02, OR=0.22, 95% CI 0.06-0.77) was a predictive factor for a higher ORR. The median OS for the HMA-treated patients was 25.67 (95% CI 21.14-30.19) months. HMA response ( P=0.036, HR=0.47, 95% CI 0.23-0.95) was an independent favorable prognostic factor, whereas complex karyotype ( P=0.024, HR=2.14, 95% CI 1.10-4.15) , leukemia transformation ( P<0.001, HR=2.839, 95% CI 1.64-4.92) , and TP53 mutation ( P=0.012, HR=2.19, 95% CI 1.19-4.07) were independent adverse prognostic factors. There was no significant difference in efficacy and survival between the reduced and standard doses of HMA. The CR rate and ORR of MDS patients treated with decitabine and azacitidine were not significantly different. The median OS of patients treated with decitabine was longer compared with that of patients treated with azacitidine (29.53 months vs 20.17 months, P=0.007) . The incidence of bone marrow suppression and pneumonia in the decitabine group was higher compared with that in the azacitidine group. Conclusion:Continuous and regular use of appropriate doses of hypomethylating agents may benefit MDS patients to the greatest extent if it is tolerated.
5.Protective mechanism of rhubarb decoction against inflammatory damage of brain tissue in rats with mild hepatic encephalopathy: A study based on the PI3K/AKT/mTOR signaling pathway
Guangfa ZHANG ; Yingying CAI ; Long LIN ; Lei FU ; Fan YAO ; Meng WANG ; Rongzhen ZHANG ; Yueqiao CHEN ; Liangjiang HUANG ; Han WANG ; Yun SU ; Yanmei LAN ; Yingyu LE ; Dewen MAO ; Chun YAO
Journal of Clinical Hepatology 2024;40(2):312-318
ObjectiveTo investigate the role and possible mechanism of action of rhubarb decoction (RD) retention enema in improving inflammatory damage of brain tissue in a rat model of mild hepatic encephalopathy (MHE). MethodsA total of 60 male Sprague-Dawley rats were divided into blank group (CON group with 6 rats) and chronic liver cirrhosis modeling group with 54 rats using the complete randomization method. After 12 weeks, 40 rats with successful modeling which were confirmed to meet the requirements for MHE model by the Morris water maze test were randomly divided into model group (MOD group), lactulose group (LT group), low-dose RD group (RD1 group), middle-dose RD group (RD2 group), and high-dose RD group (RD3 group), with 8 rats in each group. The rats in the CON group and the MOD group were given retention enema with 2 mL of normal saline once a day; the rats in the LT group were given retention enema with 2 mL of lactulose at a dose of 22.5% once a day; the rats in the RD1, RD2, and RD3 groups were given retention enema with 2 mL RD at a dose of 2.5, 5.0, and 7.5 g/kg, respectively, once a day. After 10 days of treatment, the Morris water maze test was performed to analyze the spatial learning and memory abilities of rats. The rats were analyzed from the following aspects: behavioral status; the serum levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST), interleukin-1β (IL-1β), interleukin-6 (IL-6), and tumor necrosis factor-α (TNF-α) and the level of blood ammonia; pathological changes of liver tissue and brain tissue; the mRNA and protein expression levels of phosphatidylinositol 3-kinase (PI3K), protein kinase B (AKT), and mammalian target of rapamycin (mTOR) in brain tissue. A one-way analysis of variance was used for comparison of continuous data between multiple groups, and the least significant difference t-test was used for further comparison between two groups. ResultsCompared with the MOD group, the RD1, RD2, and RD3 groups had a significantly shorter escape latency (all P<0.01), significant reductions in the levels of ALT, AST, IL-1β, IL-6, TNF-α, and blood ammonia (all P<0.05), significant alleviation of the degeneration, necrosis, and inflammation of hepatocytes and brain cells, and significant reductions in the mRNA and protein expression levels of PI3K, AKT, and mTOR in brain tissue (all P<0.05), and the RD3 group had a better treatment outcome than the RD1 and RD2 groups. ConclusionRetention enema with RD can improve cognitive function and inflammatory damage of brain tissue in MHE rats, possibly by regulating the PI3K/AKT/mTOR signaling pathway.
6.YANG Zhi-Min's Experience in Differentiating and Treating Insomnia Based on the Generation,Dispersion,Divergence and Aggregation of Nutritive qi and Defensive qi
Xiao-Xuan ZHANG ; Jin-Xiu CHEN ; Shi-Ya HUANG ; Hua-Hua GUAN ; Bi-Yun XU ; Fu-Ping XU ; Jia-Min YUAN ; Zhi-Min YANG
Journal of Guangzhou University of Traditional Chinese Medicine 2024;41(8):2179-2183
Disharmony between nutritive qi(ying)and defensive qi(wei)is the core pathogenesis of insomnia.The normal function of ying-wei in the generation,dispersion,divergence and aggregation is the precondition for the realization of the coordination between ying and wei.The disordered function of ying-wei in the generation,dispersion,divergence and aggregation will cause the disharmony between ying and wei,and then the insomnia occurs.For the treatment of insomnia caused by the disordered function of ying-wei in the generation,Guizhi Decoction associated prescriptions are used for strengthening middle energizer and nourishing ying and wei.For the treatment of insomnia caused by the disordered function of ying-wei in the dispersion,Mahuang Decoction associated prescriptions are used to relieve the exterior and eliminate the pathogen for insomnia patients with the manifestations of the attack of exopathogens,and Xiao Chaihu Decoction associated prescriptions are used to dredge the triple energizer for insomnia patients with the dysfunction of the triple energizer.For the treatment of insomnia caused by the disordered function of ying-wei in the divergence,Rhei Radix et Rhizoma associated bitter-cold prescriptions are used to purge the interior heat for insomnia patients with abundant interior heat syndrome,Gypsum Fibrosum associated pungent-cold prescriptions are used to release muscles and clear heat for insomnia patients with the interior heat complicated by exterior syndrome,Natrii Sulfas Exsiccatus associated salty-cold prescriptions are used to clear heat,moisten dryness and dissipate the masses for insomnia patients with interior heat complicated by dryness syndrome,sour-cold medicines are used to clear heat and remove retained water,supplement deficiency and relieve exterior for insomnia patients with interior heat complicated by water-retention syndrome,deficiency syndrome and exterior syndrome,and Ophiopogonis Radix associated prescriptions and Lillli Bulbus associated prescriptions are used to clear heat and nourish ying for insomnia patients with the consumption of ying and yin.For the treatment of insomnia caused by the disordered function of ying-wei in the aggregation,the compatibility of Poria and Cinnamomi Ramulus is used for warming yang and resolving fluid retention in patients with fluid retention,Taohong Siwu Decoction associated prescriptions are used to activate blood and remove stasis in patients with predominance of blood stasis syndrome,the compatibility of Poria and Paeoniae Radix Alba are used to treat retained water and blood stasis in patients with water-blood co-morbidity.Treating insomnia caused by disharmony between ying and wei from the perspective of the function of ying-wei in the generation,dispersion,divergence and aggregation is aimed at the core pathogenesis of insomnia,which makes the treatment easy to be carried out,and can provide reference for clinical differentiation and treatment of insomnia.
7.Effect of hand hygiene intervention on healthcare-associated case infection incidence from 2014 to 2022
Jia-Yan DING ; Rui-Hong SHEN ; Wen-Qin ZHOU ; Ya-Yun YUAN ; Mei HUANG ; Ya YANG ; Bing-Chao CAI ; Hai-Qun BAN ; Xiao-Fang FU
Chinese Journal of Infection Control 2024;23(2):208-213
Objective To observe the effect of multi-modal hand hygiene(HH)intervention on HH compliance,as well as the relationship between HH compliance and the healthcare-associated(HA)case infection incidence.Methods From 2014 to 2022,the infection control team in a tertiary first-class hospital implemented multi-modal HH intervention for health care workers(HCWs).The changing trend of HH monitoring data,the correlation be-tween HH compliance rate and HA case infection incidence were analyzed retrospectively.Results The consump-tion of HH products in the wards showed a stable upward trend;HH compliance rate increased from 64.98%in 2014 to 85.01%in 2022(P<0.001),and HA case infection incidence decreased from 1.21%to 0.83%(P<0.05).HH compliance rate was negatively correlated with HA case infection incidence(r=-0.369,P=0.027).HH compliance rates in different regions and job posts in each quarter were increased(P<0.001).For 5 different HH moments in each quarter,HH compliance rate fluctuated slightly before sterile manipulation and after touching patient;presented rising trend after touching surroundings around patient,and decreased before touching patient and after touching patient's body fluid since 2020(P<0.001).Conclusion Multi-modal HH intervention can im-prove the HH compliance of HCWs,improving their HH awareness is conducive to reducing HA case infection incidence.
8.TCM Guidelines for Diagnosis and Treatment of Chronic Cough in Children
Xi MING ; Liqun WU ; Ziwei WANG ; Bo WANG ; Jialin ZHENG ; Jingwei HUO ; Mei HAN ; Xiaochun FENG ; Baoqing ZHANG ; Xia ZHAO ; Mengqing WANG ; Zheng XUE ; Ke CHANG ; Youpeng WANG ; Yanhong QIN ; Bin YUAN ; Hua CHEN ; Lining WANG ; Xianqing REN ; Hua XU ; Liping SUN ; Zhenqi WU ; Yun ZHAO ; Xinmin LI ; Min LI ; Jian CHEN ; Junhong WANG ; Yonghong JIANG ; Yongbin YAN ; Hengmiao GAO ; Hongmin FU ; Yongkun HUANG ; Jinghui YANG ; Zhu CHEN ; Lei XIONG
Journal of Nanjing University of Traditional Chinese Medicine 2024;40(7):722-732
Following the principles of evidence-based medicine,in accordance with the structure and drafting rules of standardized documents,based on literature research,according to the characteristics of chronic cough in children and issues that need to form a consensus,the TCM Guidelines for Diagnosis and Treatment of Chronic Cough in Children was formulated based on the Delphi method,expert discussion meetings,and public solicitation of opinions.The guideline includes scope of application,terms and definitions,eti-ology and diagnosis,auxiliary examination,treatment,prevention and care.The aim is to clarify the optimal treatment plan of Chinese medicine in the diagnosis and treatment of this disease,and to provide guidance for improving the clinical diagnosis and treatment of chronic cough in children with Chinese medicine.
9.Analysis of male reproduction based on the"inner kidney and outer kidney"theory advanced by nation-famous Chinese medicine Professor XU Fu-song
Yun CHEN ; Zi-Yang HAN ; Zhi-Xing SUN ; Fu-Hua HUANG
National Journal of Andrology 2024;30(2):163-166
Based on the traditional Chinese medicine theories and modern medical theories,Professor XU Fu-song,a famous veteran Chinese medicine physician in China,established the theory of"inner kidney and outer kidney",emphasizing concomitant treatment of inner kidney and outer kidney,which plays an important guiding role in deepening the understanding of the pathogenesis and clinical diagnosis and treatment of male infertility.This article summarizes the relevant academic thoughts and experiences of Pro-fessor XU,with an analysis of his advanced ideas in the field of male reproduction.
10.Surveillance of bacterial resistance in tertiary hospitals across China:results of CHINET Antimicrobial Resistance Surveillance Program in 2022
Yan GUO ; Fupin HU ; Demei ZHU ; Fu WANG ; Xiaofei JIANG ; Yingchun XU ; Xiaojiang ZHANG ; Fengbo ZHANG ; Ping JI ; Yi XIE ; Yuling XIAO ; Chuanqing WANG ; Pan FU ; Yuanhong XU ; Ying HUANG ; Ziyong SUN ; Zhongju CHEN ; Jingyong SUN ; Qing CHEN ; Yunzhuo CHU ; Sufei TIAN ; Zhidong HU ; Jin LI ; Yunsong YU ; Jie LIN ; Bin SHAN ; Yunmin XU ; Sufang GUO ; Yanyan WANG ; Lianhua WEI ; Keke LI ; Hong ZHANG ; Fen PAN ; Yunjian HU ; Xiaoman AI ; Chao ZHUO ; Danhong SU ; Dawen GUO ; Jinying ZHAO ; Hua YU ; Xiangning HUANG ; Wen'en LIU ; Yanming LI ; Yan JIN ; Chunhong SHAO ; Xuesong XU ; Wei LI ; 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 ; Qian SUN ; Jinju DUAN ; Jianbang KANG ; Xiaobo MA ; Yanqing ZHENG ; Ruyi GUO ; Yan ZHU ; Yunsheng CHEN ; Qing MENG ; Shifu WANG ; Xuefei HU ; Wenhui HUANG ; Juan LI ; Quangui SHI ; Juan YANG ; Abulimiti REZIWAGULI ; Lili HUANG ; Xuejun SHAO ; Xiaoyan REN ; Dong LI ; Qun ZHANG ; Xue CHEN ; Rihai LI ; Jieli XU ; Kaijie GAO ; Lu XU ; Lin LIN ; Zhuo ZHANG ; Jianlong LIU ; Min FU ; Yinghui GUO ; Wenchao ZHANG ; Zengguo WANG ; Kai JIA ; Yun XIA ; Shan SUN ; Huimin YANG ; Yan MIAO ; Mingming ZHOU ; Shihai ZHANG ; Hongjuan LIU ; Nan CHEN ; Chan LI ; Jilu SHEN ; Wanqi MEN ; Peng WANG ; Xiaowei ZHANG ; Yanyan LIU ; Yong AN
Chinese Journal of Infection and Chemotherapy 2024;24(3):277-286
Objective To monitor the susceptibility of clinical isolates to antimicrobial agents in tertiary hospitals in major regions of China in 2022.Methods Clinical isolates from 58 hospitals in China were tested for antimicrobial susceptibility using a unified protocol based on disc diffusion method or automated testing systems.Results were interpreted using the 2022 Clinical &Laboratory Standards Institute(CLSI)breakpoints.Results A total of 318 013 clinical isolates were collected from January 1,2022 to December 31,2022,of which 29.5%were gram-positive and 70.5%were gram-negative.The prevalence of methicillin-resistant strains in Staphylococcus aureus,Staphylococcus epidermidis and other coagulase-negative Staphylococcus species(excluding Staphylococcus pseudintermedius and Staphylococcus schleiferi)was 28.3%,76.7%and 77.9%,respectively.Overall,94.0%of MRSA strains were susceptible to trimethoprim-sulfamethoxazole and 90.8%of MRSE strains were susceptible to rifampicin.No vancomycin-resistant strains were found.Enterococcus faecalis showed significantly lower resistance rates to most antimicrobial agents tested than Enterococcus faecium.A few vancomycin-resistant strains were identified in both E.faecalis and E.faecium.The prevalence of penicillin-susceptible Streptococcus pneumoniae was 94.2%in the isolates from children and 95.7%in the isolates from adults.The resistance rate to carbapenems was lower than 13.1%in most Enterobacterales species except for Klebsiella,21.7%-23.1%of which were resistant to carbapenems.Most Enterobacterales isolates were highly susceptible to tigecycline,colistin and polymyxin B,with resistance rates ranging from 0.1%to 13.3%.The prevalence of meropenem-resistant strains decreased from 23.5%in 2019 to 18.0%in 2022 in Pseudomonas aeruginosa,and decreased from 79.0%in 2019 to 72.5%in 2022 in Acinetobacter baumannii.Conclusions The resistance of clinical isolates to the commonly used antimicrobial agents is still increasing in tertiary hospitals.However,the prevalence of important carbapenem-resistant organisms such as carbapenem-resistant K.pneumoniae,P.aeruginosa,and A.baumannii showed a downward trend in recent years.This finding suggests that the strategy of combining antimicrobial resistance surveillance with multidisciplinary concerted action works well in curbing the spread of resistant bacteria.

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