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Journal of Pharmaceutical Analysis 2024年第2期14卷 287-290页

作者： Chunyan Zhu Xuemin Yao dandan liu Guoxin Zhang Yongping Zhu Hongyu Chi Shuangpan Zhang Jun Yang Ying liu Jigang Wang Na Lin Institute of Chinese Materia Medica China Academy of Chinese Medical SciencesBeijing100700China

Nowadays,roughly 603.7 million people are bothered by obesity[1].More seriously,obesity brings inflammation to the peripheral and central nervous system,which compromises the comorbidity of obesity,major depression[2],and cognitive deficits[3].Drug competent in the comorbidity is still *** 2015,liu et al.[4]reported celastrol(CEL)as a powerful anti-obesity *** our previous study.

关键词： inflammation obesity obese

Clinical analysis of patients with deep sternal wound infection-induced sepsis:a retrospective cohort study

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Emergency and Critical Care Medicine 2024年第2期4卷 67-73页

作者： Bin Song Zhentian Cui Hongyan Ju Yue Sun dandan liu Guanggang Li Department of Critical Care 7th Medical Center of Chinese PLA General HospitalBeijingChina Department of Cardiac and Macrovascular Surgery 7th Medical Center of Chinese PLA General HospitalBeijingChina

Background:This study aimed to summarize the clinical characteristics of patients with deep sternal wound infection-induced sepsis after median sternotomy and improve the treatment outcomes of infection-related ***:A retrospective cohort study was conducted on 21 patients with deep sternal wound infection-induced sepsis after median sternotomy who were admitted to the Department of Critical *** clinical manifestations,laboratory test results,infection control,and organ and nutritional support of the patients were summarized,and the follow-up data were ***:The primary symptoms of deep sternal wound infection-induced sepsis included dyspnea,high fever,chills,and altered state of *** test results revealed increased inflammatory markers and decreased oxygenation *** and liver function injury were observed in 8 and 4 patients,respectively;18 and 12 patients demonstrated elevated D-dimer and N-terminal Pro B type natriuretic peptide levels,*** the 8 patients whose wound secretions tested positive for bacteria,Acinetobacter baumannii and Staphylococcus aureus infections were present in 6 and 2 patients,*** of the 6 patients whose blood cultures tested positive for bacteria demonstrated Candida albicans *** patients received ventilator-assisted ventilation and 2 patients received renal replacement *** all the 21 patients,17 were cured,2 died,and 2 were ***:Postmedian sternotomy sepsis attributed to a deep sternal wound infection usually results from a preexisting *** most prominent clinical manifestation is dyspnea,which is sometimes accompanied by the impairment of organ *** prevention,proper nutrition support,and maintenance of healthy organ function are the cornerstones for successful treatment outcomes.

关键词： Clinical analysis Deep sternal wound infection Sepsis

The p38/MAPK pathway as a therapeutic target to prevent therapeutic escape of breast cancer stem cells

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Science China(Life Sciences) 2024年第9期67卷 1867-1880页

作者： Weixiao Yan Xiaotong Wang Wenjing Wang Qi Guo Na Huang Hao Chen Xing-Jie Liang Yu Han dandan liu Jinchao Zhang State Key Laboratory of New Pharmaceutical Preparations and Excipients/Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education/College of Chemistry and Materials Science Chemical Biology Key Laboratory of Hebei ProvinceHebei UniversityBaoding 071002China CAS Key Laboratory for Biological Effects of Nanomaterials and Nanosafety National Center for Nanoscience and TechnologyBeijing 100190China

Cancer stem cells(CSCs)play an important role in metastasis development,tumor recurrence,and treatment resistance,and are essential for the eradication of ***,therapies fail to eradicate CSCs due to their therapeutic stress-induced cellular escape,which leads to enhanced aggressive behaviors compared with CSCs that have never been ***,the underlying mechanisms regulating the therapeutic escape remain *** this end,we established a model to isolate the therapeutic escaped CSCs(TSCSCs)from breast CSCs and performed the transcription profile to reveal the ***,we demonstrated that the behavior of therapeutic escape was regulated through the p38/MAPK signaling pathway,resulting in TSCSCs exhibiting enhanced motility and ***,blocking the p38/MAPK signaling pathway effectively reduced motility and metastasis ability both in vitro and in vivo,which were further supported by downregulated motility-related genes and epithelial-mesenchymal transition(EMT)-related proteins vimentin and *** obtained findings reveal the p38/MAPK pathway as a potential therapeutic target for TSCSCs and would provide profound implications for cancer therapy.

关键词： therapeutic escape breast cancer stem cells motility p38/MAPK signaling pathway molecular mechanism

Observation of the Effectiveness of Rapid Recovery Nursing on Lung Cancer Surgery Patients and Its Impact on Sleep Quality

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Journal of Cancer Therapy 2024年第2期15卷 29-32页

作者： Weiwei Chen dandan liu Sun Yat-sen University Cancer Center Guangzhou China

Objective: To investigate the nursing effects of rapid recovery care measures on lung cancer surgery patients. Methods: 42 cases of lung cancer surgery patients were divided into control group and study group, with 21 cases in each group. The sleep quality and postoperative recovery indicators were compared between the two groups. Results: The study group showed better results than the control group in terms of PSQI scores, venting time, extubation time, time to getting out of bed, and duration of antibiotic use, with P Conclusion: Rapid recovery nursing has a positive impact on improving sleep quality and promoting postoperative recovery in lung cancer surgery patients.

关键词： Rapid Recovery Nursing Lung Cancer Surgery Sleep Quality

Clinical Practice of Evidence-Based PDCA Cycle Management Model in Accelerated Recovery of Lung Cancer Patients

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Journal of Cancer Therapy 2024年第4期15卷 130-140页

作者： Lu Kang Juan Yuan dandan liu Bo Deng Sun Yat-sen University Cancer Center Guangzhou China

Objective: To explore the nursing effect of evidence-based PDCA cycle management mode in accelerated rehabilitation of patients undergoing thoracoscopic lung cancer radical surgery. Methods: 104 patients who underwent thoracoscopic lung cancer radical surgery in our hospital from June 2022 to February 2023 were randomly divided into control group and intervention group, with 52 cases in each group. The control group implemented evidence-based ERAS clinical pathway management, while the intervention group implemented evidence-based PDCA cycle quality management. The postoperative recovery of the two groups of patients was compared. Results: The postoperative recovery of the intervention group was significantly better than that of the control group. The first time to get out of bed, the first time to eat, the duration of chest drainage tube placement, and the length of hospital stay were significantly shorter than those of the control group. The incidence of postoperative chest complications and hospitalization costs were significantly lower than those of the control group, and patient satisfaction was significantly higher than that of the control group (P Conclusion: Evidence-based PDCA cycle quality management mode can effectively improve the implementation quality of accelerated rehabilitation nursing for patients undergoing thoracoscopic lung cancer radical surgery, and it is worthy of clinical promotion.

关键词： Evidence-Based PDCA Cycle Thoracoscopic Lung Cancer Radical Surgery Accelerated Rehabilitation

Application Effect of External Diaphragm Pacemaker Combined with Active Respiratory Circulation Technology in Pulmonary Rehabilitation of Perioperative Lung Cancer Patients

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Journal of Cancer Therapy 2024年第4期15卷 190-200页

作者： Linjuan Zeng Gaoyang Duan dandan liu Heping Wu Cancer Prevention and Treatment Center Department of Thoracic Surgery Sun Yat-sen University Guangzhou China

Aim: To explore the application effect of external diaphragm pacemaker combined with active respiratory circulation technology in pulmonary rehabilitation of perioperative lung cancer patients. Methods: A total of 98 lung cancer patients admitted to our hospital from April 2020 to November 2021 were selected as the observation objects, and then divided into a control group and an observation group using the random number table method, with 49 cases in each group. The control group received routine admission guidance and active respiratory circulation training, while the observation group was supplemented with external diaphragm pacemaker on the basis of the control group. The intervention effect was evaluated by blood gas indicators, pulmonary function indicators, diaphragm function indicators, sputum comfort degree, and activity tolerance indicators before and after intervention. Results: Before intervention, there were no significant differences in blood gas analysis indicators, pulmonary function indicators, diaphragm function indicators, sputum comfort degree, and activity tolerance indicators between the two groups (P > 0.05). After intervention, the improvement degree of the above indicators in the observation group was higher than that in the control group (P < 0.05). Conclusions: The application of external diaphragm pacemaker combined with active respiratory circulation technology in pulmonary rehabilitation of perioperative lung cancer patients is significant, which can effectively improve the pulmonary function, blood gas function, and diaphragm function of lung cancer patients after surgery, and improve the activities of daily living and quality of life of patients.

关键词： The Extracorporeal Diaphragm Pacemaker Active Breathing and Circulation Training Lung Cancer Diaphragmatic Mobility Pulmonary Function

Celastrol promotes apoptosis of breast cancer MDA-MB-231 cells by targeting HSDL2

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Acupuncture and Herbal Medicine 2024年第1期4卷 92-101页

作者： Li liu Yanqing liu Shujie Zhang Junzhe Zhang Yuqing Meng dandan liu Liwei Gu Ying Zhang Liting Xu Ziyue Zhang Minghong Zhao Yinkwan Wong Qixin Wang Yongping Zhu Jigang Wang College of Pharmacy Gannan Medical UniversityGanzhouChina State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs Artemisinin Research Centerand Institute of Chinese Materia MedicaChina Academy of Chinese Medical SciencesBeijingChina Department of Pharmacological Sciences Yong Loo Lin School of MedicineNational University of SingaporeSingaporeSingapore

Objective:Celastrol is a pentacyclic triterpenoid extracted from the traditional Chinese medicinal herb,Tripterygium *** study aims to provide a scientific basis for the rational development and use of celastrol in breast ***:A quantitative chemical biology approach was used to investigate the protein targets and molecular mechanisms of celastrol in breast cancer ***:Low-concentration celastrol exerted an anti-tumor effect by directly binding to hydroxysteroid dehydrogenase-like 2(HSDL2)and inhibiting its ***,the expression of the pro-apoptotic protein,Bcl-2-associated X(BaX),increased,the level of the anti-apoptotic protein,B-cell lymphoma-2(Bcl-2),decreased,and the rate of apoptosis *** the transfection of cells with si-HSDL2,the apoptosis rate was similar to that observed after the administration of ***,apoptosis was reversed by the overexpression of ***,our mass spectrometry(MS)data indicated a relationship between HSDL2 and the mitogen-activated protein kinase(MAPK)signaling *** also found that the expression of HSDL2 was directly related to the degree of extracellular signal-regulated kinase(ERK)***:Celastrol may promote apoptosis by suppressing the HSDL2/MAPK/ERK signaling pathway.

关键词： Activity-based protein profiling Apoptosis Celastrol HSDL2

Detection of Endocrine Disruptors in Water around Landfills

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Agricultural Biotechnology 2024年第1期13卷 66-70,73页

作者： dandan liu Qing LI Yaohong liu Sha FENG Tao MO Zheng liu Xiaonan ZOU Guangzhou GRG Metrology&Test(Hunan)Co. Ltd.Changsha 410007China Anhua Administration for Market Regulation Yiyang 413500China Guizhou Engineering Vocational College Tongren 565200China

[Objectives]This study was conducted to explore the occurrence levels of endocrine disruptors(EDCs)in rural areas around a county landfill in Tongren City.[Methods]The water around the landfill was sampled and analyzed.A solid-phase extraction and high performance liquid chromatography-tandem mass spectrometry(SPE-UPLC-MS/MS)method was established for the determination of 27 *** the HLB solid-phase extraction column was activated,a water sample,which was adjusted with phosphoric acid to a pH of 2(±0.5)and added with 500 mg of disodium EDTA,was loaded,and 5 ml of water and 20%methanol water was added for ***,10 ml of elution solution was added for elution,and the collected eluate was evaporated under reduced pressure at 40℃to near dryness,and 1 ml of reconstitution solution was added to a constant *** ACQUITY UPLC BEH C18(100×2.1 mm,2.6μm)chromatographic column was adopted for LC separation by gradient elution with pure water solution-acetonitrile as the mobile *** MS detection,the MRM mode was adopted for collection,and the positive and negative ion modes were switched for simultaneous determination,and the internal standard method was used for quantification.[Results]The correlation coefficient R2 was greater than 0.99 in the linear range of each target *** limits of quantitation in the method were between 0.05 and 2.00 ng/L,and the recoveries ranged from 75.3%to 105.7%.[Conclusions]The method has high sensitivity,good accuracy and strong practical value.

关键词： Landfill Endocrine disruptor Solid phase extraction High performance liquid chromatography-tandem mass spectrometry

基于Tri-feature训练的目标与海杂波鉴别算法

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系统工程与电子技术 2024年第9期46卷 2935-2940页

作者：吴巍薛冰刘丹丹海军工程大学兵器工程学院湖北武汉430032

针对海杂波背景下末制导雷达容易出现错误检测的问题,开展海杂波抑制和鉴别研究。采用基于Tri-feature训练的目标鉴别分类算法,以目标幅度、峰值持续范围和起伏率作为特征量,核函数选择径向基函数(radial basis function,RBF)。RBF非线... 详细信息

针对海杂波背景下末制导雷达容易出现错误检测的问题,开展海杂波抑制和鉴别研究。采用基于Tri-feature训练的目标鉴别分类算法,以目标幅度、峰值持续范围和起伏率作为特征量,核函数选择径向基函数(radial basis function,RBF)。RBF非线性映射能力强,在高维空间中可以更好地表达数据之间的关系,然后进行支撑向量机(support vector machine,SVM)目标鉴别分类器设计和实验数据验证。经公开的实测数据验证,所提算法准确率达到97%以上。通过与传统的模板匹配识别方法进行对比,基于Tri-feature训练的目标鉴别分类算法有更高的鉴别准确率,证明了所提方法的有效性和先进性。

关键词：海杂波抑制末制导雷达目标分类支持向量机

Study on Detection of Antibiotic Contents in Water around Landfill Sites

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Agricultural Biotechnology 2024年第2期13卷 33-37页

作者： Sha FENG dandan liu Juan LUO Qing LI Tao MO Zheng liu Xiaonan ZOU Guangzhou GRG Metrology&Test(Hunan)Co. Ltd.Changsha 410007China Anhua Administration for Market Regulation Yiyang 413500China Guizhou Engineering Vocational College Tongren 565200China

[Objectives] An ultra performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method was established for simultaneous determination of 26 antibiotics in the water around landfills. [Methods] After an HLB solid-phase extraction column was activated, and a water sample, which was adjusted with phosphoric acid to a pH of (2±0.5) and added with 500 mg of disodium EDTA, was loaded, and 5 ml of water and 20% methanol water was added for washing. Next, 10 ml of elution solution was added for elution, and the collected eluate was evaporated under reduced pressure at 40 ℃ to near dryness, and 1 ml of reconstitution solution was added to a constant volume. An ACQUITY UPLC BEH C18 (100 mm×2.1 mm, 2.6 μm) chromatographic column was adopted for LC separation by gradient elution with 0.1% formic acid aqueous solution-acetonitrile as the mobile phase. For MS detection, the MRM mode was adopted for collection, and the positive and negative ion modes were switched for simultaneous determination, and the internal standard method was used for quantification. [Results] The correlation coefficient R2 was greater than 0.99 in the linear range of each target substance. The limits of detection ranged from 0.15 to 3.00 ng/L, and the limits of quantitation were between 0.80 and 10.00 ng/L, and the recoveries ranged from 77.9% to 104.85%. [Conclusions] The method has high sensitivity, good accuracy and strong practical value.

关键词： Landfill Antibiotics Ultra high performance liquid chromatography-tandem mass spectrometry