1.Guideline for Adult Weight Management in China
Weiqing WANG ; Qin WAN ; Jianhua MA ; Guang WANG ; Yufan WANG ; Guixia WANG ; Yongquan SHI ; Tingjun YE ; Xiaoguang SHI ; Jian KUANG ; Bo FENG ; Xiuyan FENG ; Guang NING ; Yiming MU ; Hongyu KUANG ; Xiaoping XING ; Chunli PIAO ; Xingbo CHENG ; Zhifeng CHENG ; Yufang BI ; Yan BI ; Wenshan LYU ; Dalong ZHU ; Cuiyan ZHU ; Wei ZHU ; Fei HUA ; Fei XIANG ; Shuang YAN ; Zilin SUN ; Yadong SUN ; Liqin SUN ; Luying SUN ; Li YAN ; Yanbing LI ; Hong LI ; Shu LI ; Ling LI ; Yiming LI ; Chenzhong LI ; Hua YANG ; Jinkui YANG ; Ling YANG ; Ying YANG ; Tao YANG ; Xiao YANG ; Xinhua XIAO ; Dan WU ; Jinsong KUANG ; Lanjie HE ; Wei GU ; Jie SHEN ; Yongfeng SONG ; Qiao ZHANG ; Hong ZHANG ; Yuwei ZHANG ; Junqing ZHANG ; Xianfeng ZHANG ; Miao ZHANG ; Yifei ZHANG ; Yingli LU ; Hong CHEN ; Li CHEN ; Bing CHEN ; Shihong CHEN ; Guiyan CHEN ; Haibing CHEN ; Lei CHEN ; Yanyan CHEN ; Genben CHEN ; Yikun ZHOU ; Xianghai ZHOU ; Qiang ZHOU ; Jiaqiang ZHOU ; Hongting ZHENG ; Zhongyan SHAN ; Jiajun ZHAO ; Dong ZHAO ; Ji HU ; Jiang HU ; Xinguo HOU ; Bimin SHI ; Tianpei HONG ; Mingxia YUAN ; Weibo XIA ; Xuejiang GU ; Yong XU ; Shuguang PANG ; Tianshu GAO ; Zuhua GAO ; Xiaohui GUO ; Hongyi CAO ; Mingfeng CAO ; Xiaopei CAO ; Jing MA ; Bin LU ; Zhen LIANG ; Jun LIANG ; Min LONG ; Yongde PENG ; Jin LU ; Hongyun LU ; Yan LU ; Chunping ZENG ; Binhong WEN ; Xueyong LOU ; Qingbo GUAN ; Lin LIAO ; Xin LIAO ; Ping XIONG ; Yaoming XUE
Chinese Journal of Endocrinology and Metabolism 2025;41(11):891-907
Body weight abnormalities, including overweight, obesity, and underweight, have become a dual public health challenge in Chinese adults: overweight and obesity lead to a variety of chronic complications, while underweight increases the risks of malnutrition, sarcopenia, and organ dysfunction. To systematically address these issues, multidisciplinary experts in endocrinology, sports science, nutrition, and psychiatry from various regions have held multiple weight management seminars. Based on the latest epidemiological data and clinical evidence, they expanded the guideline to include assessment and intervention strategies for underweight, in addition to the core content of obesity management. This guideline outlines the etiological mechanisms, evaluation methods, and multidimensional management strategies for overweight and obesity, covering key areas such as diagnosis and assessment, medical nutrition therapy, exercise prescription, pharmacological intervention, and psychological support. It is intended to provide a scientific and standardized approach to weight management across the adult population, aiming to curb the rising prevalence of obesity, mitigate complications associated with abnormal body weight, and improve nutritional status and overall quality of life.
2.Performance evaluation of AI-enabled blood cell morphology system for peripheral blood smear and application in grading screening network of primary medical care system
Xiaobing SUN ; Gusheng TANG ; Kaiying YUAN ; Duanqin DIAO ; Jun HU ; Xiaoyuan SHI ; Hao YUAN ; Anmei WANG ; Yan FANG ; Liqin JIANG ; Xueliang QIN ; Chun XU ; Qi HOU ; Jiong WU
Chinese Journal of Clinical Laboratory Science 2025;43(4):246-252
Objective To evaluate the recognition capability of AI-enabled Cellsee CS-BM1 automatic cell morphology analyzer for pe-ripheral blood smears and its roles in assisting manual classification,and explore the application value of AI system in the diagnosis network of tiered primary medical units.Methods The blood samples which triggered the re-examination rules were collected from six primary medical units,including the Laboratory Department of Shanghai Jiahui International Hospital,and so on,from March to No-vember 2023.The smears of peripheral blood were prepared and AI analyzer was used for pre-classification to evaluate its recognition performance in identifying the samples with abnormal WBC and RBC.The sensitivity,specificity,and accuracy of WBC classification by six junior and intermediate technicians,both with and without AI assistance,were analyzed.Additionally,the roles of the AI system in tiered diagnosis of primary medical units were also evaluated.Results The sensitivity,specificity,and accuracy of AI system in recognizing malignant primitive cells were 92.86%,95.16%,and 95.10%,respectively.The sensitivities of AI system in recognizing immature granulocytes,reactive lymphocytes,and nucleated RBCs were all greater than 90%.The sensitivity of AI system in identif-ying abnormal morphology of RBCs reached 99.59%,along with rapid quantitative analysis for various anomalous types of RBCs.In AI-assisted mode,the sensitivity of recognition for all cell types was improved to varying degrees by junior and intermediate technicians,and the sensitivity for recognizing malignant primitive cells,reactive lymphocytes,and immature granulocytes increased to 58.24%,53.39%,and 62.37%for junior technicians,and to 92.06%,83.24%,and 83.12%for intermediate technicians,respectively.The improvements for junior technicians were particularly significant,with increases of 12.46%,10.61%,and 3.71%for each cell type,respectively.Both groups achieved higher specificity and accuracy.Through AI pre-classification and manual review,a variety of pe-ripheral blood cell-related diseases were accurately diagnosed in the tiered healthcare practice of primary medical units,including 339 cases(11.13%)of red blood cell diseases,5 cases(0.16%)of platelet diseases,2 343 cases(76.90%)of infection-related disea-ses,and 28 cases(0.92%)of malignant hematological diseases.In addition,332 cases(10.90%)which lacked an obvious related cause or required further examinations were identified as well.Conclusion AI pre-classification has demonstrated strong cell recogni-tion capabilities and may assist technicians in improving the sensitivity,specificity,and accuracy of blood cell classification.AI could en-hance the disease-screening capabilities in the tiered diagnosis network of primary medical units,presenting a broad application prospect.
3.Performance evaluation of AI-enabled blood cell morphology system for peripheral blood smear and application in grading screening network of primary medical care system
Xiaobing SUN ; Gusheng TANG ; Kaiying YUAN ; Duanqin DIAO ; Jun HU ; Xiaoyuan SHI ; Hao YUAN ; Anmei WANG ; Yan FANG ; Liqin JIANG ; Xueliang QIN ; Chun XU ; Qi HOU ; Jiong WU
Chinese Journal of Clinical Laboratory Science 2025;43(4):246-252
Objective To evaluate the recognition capability of AI-enabled Cellsee CS-BM1 automatic cell morphology analyzer for pe-ripheral blood smears and its roles in assisting manual classification,and explore the application value of AI system in the diagnosis network of tiered primary medical units.Methods The blood samples which triggered the re-examination rules were collected from six primary medical units,including the Laboratory Department of Shanghai Jiahui International Hospital,and so on,from March to No-vember 2023.The smears of peripheral blood were prepared and AI analyzer was used for pre-classification to evaluate its recognition performance in identifying the samples with abnormal WBC and RBC.The sensitivity,specificity,and accuracy of WBC classification by six junior and intermediate technicians,both with and without AI assistance,were analyzed.Additionally,the roles of the AI system in tiered diagnosis of primary medical units were also evaluated.Results The sensitivity,specificity,and accuracy of AI system in recognizing malignant primitive cells were 92.86%,95.16%,and 95.10%,respectively.The sensitivities of AI system in recognizing immature granulocytes,reactive lymphocytes,and nucleated RBCs were all greater than 90%.The sensitivity of AI system in identif-ying abnormal morphology of RBCs reached 99.59%,along with rapid quantitative analysis for various anomalous types of RBCs.In AI-assisted mode,the sensitivity of recognition for all cell types was improved to varying degrees by junior and intermediate technicians,and the sensitivity for recognizing malignant primitive cells,reactive lymphocytes,and immature granulocytes increased to 58.24%,53.39%,and 62.37%for junior technicians,and to 92.06%,83.24%,and 83.12%for intermediate technicians,respectively.The improvements for junior technicians were particularly significant,with increases of 12.46%,10.61%,and 3.71%for each cell type,respectively.Both groups achieved higher specificity and accuracy.Through AI pre-classification and manual review,a variety of pe-ripheral blood cell-related diseases were accurately diagnosed in the tiered healthcare practice of primary medical units,including 339 cases(11.13%)of red blood cell diseases,5 cases(0.16%)of platelet diseases,2 343 cases(76.90%)of infection-related disea-ses,and 28 cases(0.92%)of malignant hematological diseases.In addition,332 cases(10.90%)which lacked an obvious related cause or required further examinations were identified as well.Conclusion AI pre-classification has demonstrated strong cell recogni-tion capabilities and may assist technicians in improving the sensitivity,specificity,and accuracy of blood cell classification.AI could en-hance the disease-screening capabilities in the tiered diagnosis network of primary medical units,presenting a broad application prospect.
4.Guideline for Adult Weight Management in China
Weiqing WANG ; Qin WAN ; Jianhua MA ; Guang WANG ; Yufan WANG ; Guixia WANG ; Yongquan SHI ; Tingjun YE ; Xiaoguang SHI ; Jian KUANG ; Bo FENG ; Xiuyan FENG ; Guang NING ; Yiming MU ; Hongyu KUANG ; Xiaoping XING ; Chunli PIAO ; Xingbo CHENG ; Zhifeng CHENG ; Yufang BI ; Yan BI ; Wenshan LYU ; Dalong ZHU ; Cuiyan ZHU ; Wei ZHU ; Fei HUA ; Fei XIANG ; Shuang YAN ; Zilin SUN ; Yadong SUN ; Liqin SUN ; Luying SUN ; Li YAN ; Yanbing LI ; Hong LI ; Shu LI ; Ling LI ; Yiming LI ; Chenzhong LI ; Hua YANG ; Jinkui YANG ; Ling YANG ; Ying YANG ; Tao YANG ; Xiao YANG ; Xinhua XIAO ; Dan WU ; Jinsong KUANG ; Lanjie HE ; Wei GU ; Jie SHEN ; Yongfeng SONG ; Qiao ZHANG ; Hong ZHANG ; Yuwei ZHANG ; Junqing ZHANG ; Xianfeng ZHANG ; Miao ZHANG ; Yifei ZHANG ; Yingli LU ; Hong CHEN ; Li CHEN ; Bing CHEN ; Shihong CHEN ; Guiyan CHEN ; Haibing CHEN ; Lei CHEN ; Yanyan CHEN ; Genben CHEN ; Yikun ZHOU ; Xianghai ZHOU ; Qiang ZHOU ; Jiaqiang ZHOU ; Hongting ZHENG ; Zhongyan SHAN ; Jiajun ZHAO ; Dong ZHAO ; Ji HU ; Jiang HU ; Xinguo HOU ; Bimin SHI ; Tianpei HONG ; Mingxia YUAN ; Weibo XIA ; Xuejiang GU ; Yong XU ; Shuguang PANG ; Tianshu GAO ; Zuhua GAO ; Xiaohui GUO ; Hongyi CAO ; Mingfeng CAO ; Xiaopei CAO ; Jing MA ; Bin LU ; Zhen LIANG ; Jun LIANG ; Min LONG ; Yongde PENG ; Jin LU ; Hongyun LU ; Yan LU ; Chunping ZENG ; Binhong WEN ; Xueyong LOU ; Qingbo GUAN ; Lin LIAO ; Xin LIAO ; Ping XIONG ; Yaoming XUE
Chinese Journal of Endocrinology and Metabolism 2025;41(11):891-907
Body weight abnormalities, including overweight, obesity, and underweight, have become a dual public health challenge in Chinese adults: overweight and obesity lead to a variety of chronic complications, while underweight increases the risks of malnutrition, sarcopenia, and organ dysfunction. To systematically address these issues, multidisciplinary experts in endocrinology, sports science, nutrition, and psychiatry from various regions have held multiple weight management seminars. Based on the latest epidemiological data and clinical evidence, they expanded the guideline to include assessment and intervention strategies for underweight, in addition to the core content of obesity management. This guideline outlines the etiological mechanisms, evaluation methods, and multidimensional management strategies for overweight and obesity, covering key areas such as diagnosis and assessment, medical nutrition therapy, exercise prescription, pharmacological intervention, and psychological support. It is intended to provide a scientific and standardized approach to weight management across the adult population, aiming to curb the rising prevalence of obesity, mitigate complications associated with abnormal body weight, and improve nutritional status and overall quality of life.
5.Barriers to the Acceptance of Tuberculosis Preventive Treatment: A Multicenter Cross-sectional Study in China.
Jingjuan REN ; Fei HUANG ; Haifeng CHEN ; Huimin ZHANG ; Jianwei SUN ; Ahui ZHAO ; Zuhui XU ; Liqin LIU ; Huizhong WU ; Lanjun FANG ; Chengguo WU ; Qingya WANG ; Wenqian ZHANG ; Xinhua SUN ; Xiaoping LIU ; Jizheng YUAN ; Bohan CHEN ; Ni WANG ; Yanlin ZHAO
Biomedical and Environmental Sciences 2024;37(11):1303-1309
OBJECTIVE:
We aimed to understand the willingness and barriers to the acceptance of tuberculosis (TB) preventive treatment (TPT) among people with latent TB infection (LTBI) in China.
METHODS:
A multicenter cross-sectional study was conducted from May 18, 2023 to December 31, 2023 across 10 counties in China. According to a national technical guide, we included healthcare workers, students, teachers, and others occupations aged 15-65 years as our research participants.
RESULTS:
Overall, 17.0% (183/1,077) of participants accepted TPT. There were statistically significant differences in the acceptance rate of TPT among different sexes, ages, educational levels, and occupations ( P < 0.05). The main barriers to TPT acceptance were misconceptions that it had uncertain effects on prevention (57.8%, 517/894), and concerns about side effects (32.7%, 292/894).
CONCLUSION
An enhanced and comprehensive understanding of LTBI and TPT among people with LTBI is vital to further expand TPT in China. Moreover, targeted policies need to be developed to address barriers faced by different groups of people.
Humans
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China/epidemiology*
;
Adult
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Male
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Female
;
Cross-Sectional Studies
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Middle Aged
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Young Adult
;
Adolescent
;
Aged
;
Latent Tuberculosis/prevention & control*
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Patient Acceptance of Health Care
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Tuberculosis/prevention & control*
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Antitubercular Agents/therapeutic use*
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Health Knowledge, Attitudes, Practice
6.Rapid discovery of a novel"green"and natural GST inhibitor for sensitizing hepatocellular carcinoma to Cisplatin by visual screening strategy
Mao LINXI ; Qin YAN ; Fan JIALONG ; Yang WEI ; Li BIN ; Cao LIANG ; Yuan LIQIN ; Wang MENGYUN ; Liu BIN ; Wang WEI
Journal of Pharmaceutical Analysis 2024;14(5):693-706
Over-expression of glutathione S-transferase(GST)can promote Cisplatin resistance in hepatocellular carcinoma(HCC)treatment.Hence,inhibiting GST is an attractive strategy to improve Cisplatin sensi-tivity in HCC therapy.Although several synthesized GST inhibitors have been developed,the side effects and narrow spectrum for anticancer seriously limit their clinical application.Considering the abundance of natural compounds with anticancer activity,this study developed a rapid fluorescence technique to screen"green"natural GST inhibitors with high specificity.The fluorescence assay demonstrated that schisanlactone B(hereafter abbreviated as C1)isolated from Xue tong significantly down-regulated GST levels in Cisplatin-resistant HCC cells in vitro and in vivo.Importantly,C1 can selectively kill HCC cells from normal liver cells,effectively improving the therapeutic effect of Cisplatin on HCC mice by down-regulating GST expression.Considering the high GST levels in HCC patients,this compound demon-strated the high potential for sensitizing HCC therapy in clinical practice by down-regulating GST levels.
7.Relationship between cognitive impairment and sleep parameters in stroke patients with obstructive sleep apnea
Hongchun QIAN ; Pingshu ZHANG ; Xiaodong YUAN ; Jianxin YUAN ; Lingyun CAO ; Liqin DUAN
Tianjin Medical Journal 2024;52(6):619-624
Objective To investigate the relationship between cognitive impairment and sleep parameters in acute ischemic stroke patients with obstructive sleep apnea(OSA).Methods A total of 343 patients with acute ischemic stroke and OSA were selected.The cognitive function was assessed using the simple mental state examination scale(MMSE).Patients were divided into the stroke with OSA and cognitive impairment group(MMSE<27 points,n=119)and the stroke with OSA without cognitive impairment group(MMSE≥27 points,n=224).General data,TOAST etiological classification and distribution of cerebral infarction lesions were collected.The intelligent sleep monitoring system was used to calculate apnea hypopnea index(AHI)and evaluate OSA.Objective sleep monitoring parameters were collected at night.Sleep monitoring was conducted within 24 h of admission and continuous monitoring for≥3 nights.Continuous monitoring duration≥7 h every night to obtain night sleep structure parameters.Multifactor Logistics regression was used to analyze the relationship between cognitive impairment and sleep parameters in stroke patients with OSA.Results Compared with the stroke with OSA without cognitive impairment group,the proportion of age,diabetes history and HHcy history,the proportion of patients with infarct lesions located in frontal,temporal,parietal,occipital,thalamus,basal ganglia,brainstem and hemioval center increased in the stroke with OSA and cognitive impairment group,and the number of years of education decreased,the number of waking times,the proportion of light sleep and AHI increased,the nighttime sleep efficiency and deep sleep period decreased(P<0.05).Logistics regression analysis showed that after controlling for years of education,age and other interference factors,nighttime sleep efficiency and AHI were strongly associated with cognitive impairment in acute ischemic stroke patients with OSA(P<0.05).The increased nighttime sleep efficiency was protective factor for cognitive impairment,and increased AHI was risk factor for cognitive impairment.Conclusion Cognitive impairment in acute ischemic stroke patients with OSA is closely related to sleep parameters,in which the increased sleep efficiency at night is a protective factor for cognitive impairment,and the increased AHI is a risk factor.
8.Advances in research on the application of pharmaceutical excipients in traditional Chinese medicine preparations
Yan MIAO ; Liqin HU ; Ke ZHANG ; Shuai QIAN ; Yuan GAO ; Jianjun ZHANG ; Yuanfeng WEI
Journal of China Pharmaceutical University 2024;55(6):734-741
Pharmaceutical excipients, as an indispensable part of drug preparation, play crucial roles as drug carriers, improving drug release, ensuring drug stability, and enhancing patient compliance. Traditional Chinese Medicine (TCM) boasts a rich developmental history. With the modernization of technology, the deep integration of pharmacy, chemistry, and materials science has provided broader opportunities for innovative research in TCM. Simultaneously, the demand for high-quality excipients has become increasingly critical.This paper aims to review current research and applications of excipients in TCM preparations, including pre-mixed and co-processed excipients, modified excipients, and the unification of drugs and excipients, such as flavoring agents, fillers, penetration enhancers, and delivery systems. A meticulous synthesis and analysis of existing research aims to provide a reference for selecting excipients in TCM preparations, stimulate innovation in excipient development for TCM, and advocate for the development of personalized excipients.
9.Effect and mechanism of moderate intensity physical exercise on depression, anxiety and cognitive function of schizophrenic patients
Fuqiang YUAN ; Yanhong FU ; Hui ZHANG ; Lei YU ; Zhiyong ZHANG ; Zhenwu MA ; Yanan XU ; Liqin ZHAO ; Hui YANG ; Xusheng WANG
Chinese Journal of Behavioral Medicine and Brain Science 2022;31(6):513-519
Objective:To explore the effect of moderate intensity physical exercise on depression, anxiety and cognitive function of schizophrenic patients and its possible biochemical mechanism.Methods:Totally 148 patients with schizophrenia who were hospitalized in hospital from March 2019 to March 2021 were randomly divided into control group ( n=75) and exercise group ( n=73). The patients of the two groups were given drug treatment and routine exercise according to clinical practice, and the patients in exercise group were given additional medium-intensity physical exercise.Self-rating anxiety scale (SAS) and self-rating depression scale (SDS) were used to evaluate the poor mental state of the subjects.The verbal fluency task(VFT), digital span test(DST), trail making test-A(TMT-A) and the positive and negative symptom scale (PANSS) were used to evaluate cognitive function.The levels of endocannabinoids (eCBs) receptors were detected by high performance liquid chromatography, and the levels of monoamine neurotransmitters and eCBs in the patients' serum were determined by enzyme-linked immunosorbent assay (ELISA). SPSS 19.0 software was used for statistical analysis.The measurement data between the two groups were compared by t-test and the counting data between the two groups were compared by χ2 test. Results:(1) After effective intervention, the scores of SAS, SDS, TMT-A and PANSS of the two groups were significantly lower than those before intervention, and the difference before and after intervention between the two groups was statistically significant( t=6.00, 6.52, 25.79, 17.03, all P<0.01). The scores of SAS, SDS, TMT-A and PANSS after intervention in the exercise group were significantly lower than those in the control group( t=4.66, 20.88, 6.61, 8.95; all P<0.01). The number of VFT and DST in the two groups after intervention were significantly higher than those before intervention, and the differences before and after intervention between the two groups were statistically significant( t=13.78, 22.76, both P<0.01). After effective intervention, the number of VFT and DST in exercise group were significantly higher than those in the control group( t=5.02, 5.15, both P<0.01). (2) After effective intervention, the contents of monoamine neurotransmitters and eCBs in serum of the two groups were significantly higher than those before intervention, and HVA level ((63.68±6.99) pg/mL), MHPG level ((175.90±16.22) pg/mL), 5-HIAA level ((29.94±4.19) pg/mL) and CBR1 level ((6.70±1.40)μg/L), 2-AG level ((61.90±5.73)pmol/g) and AEA level ((76.48±6.59) pmol/g) in exercise group were significantly higher than those in the control group ((52.97±5.37)pg/mL, (138.50±11.52)pg/mL, (23.87±3.15)pg/mL, (5.71±1.29)μg/L, (52.13±5.14)pmol/g, (67.66±5.88)pmol/g)( t=10.43, 16.21, 10.91, 8.65, all P<0.01). Conclusion:Moderate intensity physical exercise can significantly improve their depression, anxiety and cognitive function, which may be related to regulating the levels of ECBS and their receptors in patients with chronic schizophrenia to increase monoamine neurotransmitters.
10.Effect of vancomycin-loaded microbubbles combined with ultrasound targeted microbubble destruction technology on methicillin-resistant Staphylococcus aureus biofilms
Liqin YAO ; Wenbo MU ; Chen YUAN ; Yicheng LI ; Yang LIU ; Jianhua YANG ; Li CAO ; Xuebin SUN
Chinese Journal of Trauma 2022;38(10):923-930
Objective:To investigate the effect of vancomycin (Vm)-loaded microbubbles (MBs) combined with ultrasound targeted microbubble destruction (UTMD) technique on the morphological structure, thickness and bacterial viability of methicillin-resistant Staphylococcus aureus (MRSA) biofilms.Methods:Vm-MBs were prepared by thin film hydration. Sterile coverslips in a diameter of 13 mm were placed in 24-well plates to construct in vitro biofilm models using MRSA as the test strain, and the biofilm morphology was observed by naked eye and light microscopy after crystal violet staining. LIVE/DEAD, SYTO59 and DIL were used to stain biofilms and MBs, respectively. After staining, the biofilm morphology and position of the biofilm in relation to MBs were observed using laser confocal scanning microscopy. The biofilms were divided into control group, Vm group, Vm-MBs group, UTMD group and Vm-MBs+UTMD group according to the random number table method, with 9 samples in each group. After biofilms of each group were treated accordingly for 24 hours, the morphological and structural changes of biofilms in each group were observed using laser confocal scanning microscopy and scanning electron microscopy following LIVE/DEAD staining; the difference in biofilm density in each group was measured with the aid of an enzyme marker following crystal violet staining; the difference in biofilm thickness and bacterial viability in each group were observed by laser confocal scanning microscopy. Results:The prepared Vm-MBs met the experimental requirements. The constructed biofilm model observed by naked eye, light microscopy and laser confocal scanning microscopy showed that the biofilm structure was dense with a relatively uniform thickness of (13.8±0.2)nm, a small amount of dead bacteria inside the membrane and the percentage of live bacteria of (94.9±0.3)%. Laser confocal scanning microscopy showed that MBs could penetrate into deeper layers of biofilms. After the respective treatment was given to each group for 24 hours, Laser confocal scanning microscopy and scanning electron microscopy following LIVE/DEAD staining showed that the biofilm morphological structure was most significantly disrupted in Vm-MBs+UTMD group compared to control, Vm, Vm-MBs and UTMD groups. In Vm-MBs+UTMD group, a large number of dead bacteria was observed, with only a few scattered planktonic bacteria and irregular changes in cell membrane morphology. Crystal violet staining showed that the biofilm density was significantly lower in Vm-MBs+UTMD group compared to control group ( P<0.05), while the differences between Vm, Vm-MBs and UTMD groups were not statistically significant (all P>0.05). Laser confocal microscopy showed that the biofilm thickness was thinner in Vm-MBs, UTMD and Vm-MBs+UTMD groups compared to control group (all P<0.05), with no significant difference between Vm group and control group ( P>0.05) and that the biofilm thickness was thinner in Vm-MBs+UTMD group compared to Vm, Vm-MBs and UTMD groups (all P<0.01), with no significant differences between the other groups (all P>0.05). Bacterial activity in Vm, Vm-MBs, UTMD and Vm-MBs+UTMD groups was significantly lower than that in control group (all P<0.01), with lower in Vm-MBs+UTMD group compared to Vm, Vm-MBs and UTMD groups (all P<0.01), but without significant difference between the other groups (all P>0.05). Conclusion:Vm-MBs combined with UTMD technology can effectively destroy the biofilm morphological structure to reduce biofilm thickness. Meanwhile, Vm-MBs combined with UTMD technology can release antibiotics and significantly decrease bacterial viability to improve antibiotic bactericidal efficacy.

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