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Gao R, Tian LY, Wang T, Li HJ, Chen P, Yan TY, Gao XP. Surface-Phosphided Metal Oxide Microspheres as Catalytic Host of Sulfur to Enhance the Performance of Lithium-Sulfur Batteries. ACS Appl Mater Interfaces 2024; 16:21943-21952. [PMID: 38635833 DOI: 10.1021/acsami.4c02109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
Lithium-sulfur (Li-S) batteries are one of the most promising high-energy density secondary batteries due to their high theoretical energy density of 2600 Wh kg-1. However, the sluggish kinetics and severe "shuttle effect" of polysulfides are the well-known barriers that hinder their practical applications. A carefully designed catalytic host of sulfur may be an effective strategy that not only accelerates the conversion of polysulfides but also limit their dissolution to mitigate the "shuttle effect." Herein, in situ surface-phosphided Ni0.96Co0.03Mn0.01O (p-NCMO) oxide microspheres are prepared via gas-phase phosphidation as a catalytic host of sulfur. The as-prepared unique heterostructured microspheres, with enriched surface-coated metal phosphide, exhibit superior synergistic effect of catalytic conversion and absorption of the otherwise soluble intermediate polysulfides. Correspondingly, the sulfur cathode exhibits excellent electrochemical performance, including a high initial discharge capacity (1162 mAh gs-1 at 0.1C), long cycling stability (491 mAh gs-1 after 1000 cycles at 1C), and excellent rate performance (565 mAh gs-1 at 5C). Importantly, the newly prepared sulfur cathode shows a high areal capacity of 4.0 mAh cm-2 and long cycle stability under harsh conditions (high sulfur loading of 5.3 mg cm-2 and lean electrolyte/sulfur ratio of 5.8 μL mg-1). This work proposes an effective strategy to develop the catalytic hosts of sulfur for achieving high-performance Li-S batteries via surface phosphidation.
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Affiliation(s)
- Rui Gao
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering, Nankai University, Tianjin 300350, China
| | - Li-Yuan Tian
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering, Nankai University, Tianjin 300350, China
| | - Tao Wang
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering, Nankai University, Tianjin 300350, China
| | - Hong-Jin Li
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering, Nankai University, Tianjin 300350, China
| | - Peng Chen
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering, Nankai University, Tianjin 300350, China
| | - Tian-Ying Yan
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering, Nankai University, Tianjin 300350, China
| | - Xue-Ping Gao
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering, Nankai University, Tianjin 300350, China
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2
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Zheng BD, Gan L, Tian LY, Chen GH. Protein/polysaccharide-based hydrogels loaded probiotic-mediated therapeutic systems: A review. Int J Biol Macromol 2023; 253:126841. [PMID: 37696368 DOI: 10.1016/j.ijbiomac.2023.126841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 09/01/2023] [Accepted: 09/08/2023] [Indexed: 09/13/2023]
Abstract
The natural characteristics of protein/polysaccharide-based hydrogels, as a potential drug delivery platform, have attracted extensive attention. Probiotics have attracted renewed interest in drug research because of their beneficial effects on host health. The idea of using probiotics loaded on protein/polysaccharide-based hydrogels as potential drugs to treat different diseases has been put forward and shows great prospects. Based on this, in this review, we highlight the design strategy of hydrogels loaded probiotic-mediated therapy systems and review the potential diseases that have been proved to be treatable in the laboratory, including promoting wound healing and improving intestinal health and vaginal health, and discuss the challenges existing in the current design.
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Affiliation(s)
- Bing-De Zheng
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China.
| | - Lei Gan
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China
| | - Li-Yuan Tian
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China
| | - Guan-Hong Chen
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China
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3
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Dong YN, Wang YK, Li Q, Tang BH, van den Anker J, Hao GX, Zheng Y, Tian LY, You DP, Wu YE, Zhao W. Epithelial lining fluid concentrations of ceftriaxone in children with community-acquired pneumonia. Br J Clin Pharmacol 2023; 89:1491-1494. [PMID: 36440759 DOI: 10.1111/bcp.15616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 10/26/2022] [Accepted: 11/20/2022] [Indexed: 11/29/2022] Open
Abstract
Ceftriaxone is widely used in children with community-acquired pneumonia. Currently, there are no available data regarding epithelial lining fluid (ELF) concentrations of ceftriaxone in children. Thus, blood and bronchoalveolar lavage fluids samples were collected by using an opportunistic sampling design, then we determined plasma and ELF concentrations in 22 children (0.5-11.7 years), with a total of 36 plasma and 22 ELF samples available for analysis. Ceftriaxone plasma and ELF concentrations ranged from 1.07 to 138.71 mg/L and from 0.61 to 26.69 mg/L, respectively. Ceftriaxone concentration in ELF was 12.18 ± 5.15 (mean ± standard deviation) times higher than that in plasma, ranging from 1.29 to 20.44.
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Affiliation(s)
- Yi-Ning Dong
- Department of Clinical Pharmacy, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China.,Department of Pharmacy, Shandong Provincial Third Hospital, Shandong University, Jinan, China
| | - Ya-Kun Wang
- Department of Respiratory Care, Children's Hospital of Hebei Province affiliated to Hebei Medical University, Shijiazhuang, China
| | - Qian Li
- Department of Clinical Pharmacy, Clinical Trial Center, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Engineering and Technology Research Center for Pediatric Drug Development, Shandong Medicine and Health Key Laboratory of Clinical Pharmacy, Jinan, China
| | - Bo-Hao Tang
- Department of Clinical Pharmacy, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - John van den Anker
- Division of Clinical Pharmacology, Children's National Hospital, Washington, District of Columbia, USA.,Departments of Pediatrics, Pharmacology & Physiology, Genomics and Precision Medicine, School of Medicine and Health Sciences, George Washington University, Washington, District of Columbia, USA.,Department of Paediatric Pharmacology and Pharmacometrics, University Children's Hospital Basel, University of Basel, Switzerland
| | - Guo-Xiang Hao
- Department of Clinical Pharmacy, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yi Zheng
- Department of Clinical Pharmacy, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Li-Yuan Tian
- Department of Respiratory Care, Children's Hospital of Hebei Province affiliated to Hebei Medical University, Shijiazhuang, China
| | - Dian-Ping You
- Pediatric Research Institute, Children's Hospital of Hebei Province affiliated to Hebei Medical University, Shijiazhuang, China
| | - Yue-E Wu
- Department of Clinical Pharmacy, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Wei Zhao
- Department of Clinical Pharmacy, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China.,NMPA Key Laboratory for Clinical Research and Evaluation of Innovative Drug, Qilu Hospital of Shandong University, Shandong University, Jinan, China
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4
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Xia BC, Sun JG, Huang SL, Tian LY, Zhu YH, Pi GF. [Efficacy comparison of zero-profile intervertebral fusion and stand-alone interbody cage combined with cage-titanium plate construct in treatment of two-segment skip cervical spondylosis]. Zhonghua Yi Xue Za Zhi 2022; 102:1450-1457. [PMID: 35599410 DOI: 10.3760/cma.j.cn112137-20220128-00208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To investigate the difference in clinical efficacy between zero-profile interbody fusion (ROI-C) and stand-alone interbody cage combined with cage-titanium plate construct for patient with two-segment skipped cervical spondylosis who received the anterior cervical discectomy and fusion (ACDF) surgical strategies. Methods: The clinical data of 62 patients with two-segment skipped cervical spondylosis who underwent surgical treatment in the First Affiliated Hospital of Zhengzhou University from June 2017 to June 2020 were retrospectively analyzed, included 38 males and 24 females, aged (53.3±8.5) years. Thirty-three cases were treated with ROI-C (ROI-C group), and 29 cases with stand-alone interbody cage combined with cage-titanium plate construct (cage+titanium plate group). The following parameters, including operation time, intraoperative blood loss, dysphagia Bazaz grade, Japanese Orthopaedic Association (JOA) score, visual analogue scale (VAS) of pain, neck disability index (NDI), average intervertebral height of operated segments, C2-7 Cobb angle, and related complications, were compared between the two groups. Results: The patients were followed up for (28±5) months (16-34 months). The operation time of ROI-C group was (127.6±34.2) min, which was shorter than that in cage+titanium plate group [(157.1±43.9) min, P=0.004]. The scores of JOA and VAS in both ROI-C group and cage+titanium plate group were significantly improved 3 months after operation when compared with those before operation, and there was no significant difference between the two groups (all P>0.05). The average intervertebral space height of fusion segment in ROI-C group was (6.02±1.03) mm before operation, it was improved to (8.38±1.47) mm at 3 months after operation, (8.16±1.40) mm at 12 months after operation, and it was (6.24±1.05) mm, (8.58±1.18) mm and (7.87±0.73) mm in cage+titanium plate group, respectively, and there was no significant difference between the two groups at each time point (all P>0.05). The Cobb angle of cervical vertebrae in ROI-C group was 10.5°±6.8° before operation, improved to 19.2°±9.0° at 3 months after operation, 18.2°±5.8° at 12 months after operation, and it was 10.9°±4.6°, 18.5°±7.8°, 17.1°±5.2° in cage+titanium plate group, respectively, and there was no significant difference between the two groups at each time point (all P>0.05). The incidence of postoperative dysphagia was 9.1%(3/33) in the ROI-C group and 37.9%(11/29) in the cage+titanium plate group, and the difference was statistically significant (P=0.007). Conclusions: Both ROI-C and stand-alone interbody cage combined with cage-titanium plate construct can achieve good results for two-segment skipped cervical spondylosis. However, ROI-C is more advantageous in shortening the operation time and reducing early postoperative dysphagia.
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Affiliation(s)
- B C Xia
- Department of Orthopedics, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - J G Sun
- Department of Orthopedics, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - S L Huang
- Department of Orthopedics, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - L Y Tian
- Department of Orthopedics, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Y H Zhu
- Department of Orthopedics, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - G F Pi
- Department of Orthopedics, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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5
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Zhang B, Tian LY, Zhang L, Tao CQ, Lin XQ, Zhang F. Age-cumulative effect of REC8 reduction on meiotic chromosome segregation errors in mice. Reprod Dev Med 2021. [DOI: 10.4103/2096-2924.327880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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6
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Wu YE, Wang YK, Tang BH, Dong L, Li X, Zhang W, Li DF, Tian LY, van den Anker J, You DP, Zhao W. Population Pharmacokinetics and Dosing Optimization of Amoxicillin in Chinese Infants. J Clin Pharmacol 2020; 61:538-546. [PMID: 32996155 DOI: 10.1002/jcph.1752] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 09/03/2020] [Indexed: 12/26/2022]
Abstract
Amoxicillin is used to treat various bacterial infections (eg, pneumonia, sepsis, meningitis) in infants. Despite its frequent use, there is a lack of population pharmacokinetic studies in infants, resulting in a substantial variability in dosing regimens used in clinical practice. Therefore, the objective of this study was to evaluate the population pharmacokinetics of intravenous amoxicillin in infants and suggest an optimal dosage regimen. Blood samples were collected for the determination of amoxicillin concentrations using an opportunistic sampling strategy. The amoxicillin plasma concentrations were determined using high-performance liquid chromatography. Population pharmacokinetic analysis was performed using NONMEM. A total of 62 pharmacokinetic samples from 47 infants (age range, 0.09 to 2.0 years) were available for analysis. A 2-compartment model with first-order elimination was most suitable to describe the population pharmacokinetics of amoxicillin, and covariate analysis showed that only current body weight was a significant covariate. Monte Carlo simulation demonstrated that the currently used dosage regimen (25 mg/kg twice daily) resulted in only 22.4% of infants reaching their pharmacodynamic target, using a minimum inhibitory concentration (MIC) break point of 2 mg/L, whereas a dosage regimen (60 mg/kg thrice daily), as supported by the British National Formulary for Children, resulted in 80.9% of infants achieving their pharmacodynamic target. It is recommended to change antibiotics for infections caused by Escherichia coli (MIC = 8.0 mg/L) because only 27.9% of infants reached target using 60 mg/kg thrice daily.
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Affiliation(s)
- Yue-E Wu
- Department of Clinical Pharmacy, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Ya-Kun Wang
- Department of Respiratory Care, Children's Hospital of Hebei Province affiliated to Hebei Medical University, Shijiazhuang, China
| | - Bo-Hao Tang
- Department of Clinical Pharmacy, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Lei Dong
- Department of Pharmacy, Children's Hospital of Hebei Province affiliated to Hebei Medical University, Shijiazhuang, China
| | - Xue Li
- Department of Clinical Pharmacy, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Wei Zhang
- Department of Clinical Pharmacy, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Di-Fei Li
- Department of Clinical Pharmacy, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Li-Yuan Tian
- Department of Respiratory Care, Children's Hospital of Hebei Province affiliated to Hebei Medical University, Shijiazhuang, China
| | - John van den Anker
- Division of Clinical Pharmacology, Children's National Medical Center, Washington, District of Columbia, USA.,Departments of Pediatrics, Pharmacology & Physiology, Genomics & Precision Medicine, the George Washington University School of Medicine and Health Sciences, Washington, District of Columbia, USA.,Department of Paediatric Pharmacology and Pharmacometrics, University Children's Hospital Basel, University of Basel, Basel, Switzerland
| | - Dian-Ping You
- Pediatric Research Institute, Children's Hospital of Hebei Province affiliated to Hebei Medical University, Shijiazhuang, China
| | - Wei Zhao
- Department of Clinical Pharmacy, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China.,Pediatric Research Institute, Children's Hospital of Hebei Province affiliated to Hebei Medical University, Shijiazhuang, China
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7
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Khan MW, Wang YK, Wu YE, Tang BH, Kan M, Shi HY, Zheng Y, Xu BP, Shen AD, Jacqz-Aigrain E, Tian LY, Zhao W. Population pharmacokinetics and dose optimization of ceftriaxone for children with community-acquired pneumonia. Eur J Clin Pharmacol 2020; 76:1547-1556. [PMID: 32583354 DOI: 10.1007/s00228-020-02939-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 06/17/2020] [Indexed: 12/24/2022]
Abstract
PURPOSE To assess ceftriaxone population pharmacokinetics in a large pediatric population and describe the proper dose for establishing an optimized antibiotic regimen. METHODS From pediatric patients using ceftriaxone, blood samples were obtained and the concentration was measured using high-performance liquid chromatography ultraviolet detection. The NONMEM software program was used for population pharmacokinetic analysis, for which data from 99 pediatric patients (2 to 12 years old) was collected and 175 blood concentrations were obtained. RESULTS The best fit with the data was shown by the one-compartment model with first-order elimination. According to covariate analysis, weight had a significant impact on the clearance of ceftriaxone. Using Monte Carlo simulation, in a pediatric population with community-acquired pneumonia, a dose regimen of 100 mg/kg every 24 h produced satisfactory target attainment rates while remaining within the required minimum inhibitory concentration (2 mg/L). CONCLUSION Population pharmacokinetics of ceftriaxone was evaluated in children and an optimum dosing regimen was constructed on the basis of the pharmacokinetics-pharmacodynamics model-based approach.
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Affiliation(s)
- Muhammad Wasim Khan
- Department of Clinical Pharmacy, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, No. 44, Wenhua West Road, Jinan, Shandong Province, China
| | - Ya-Kun Wang
- Department of Respiratory Care, Children's Hospital of Hebei Province affiliated to Hebei Medical University, Shijiazhuang, China
| | - Yue-E Wu
- Department of Clinical Pharmacy, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, No. 44, Wenhua West Road, Jinan, Shandong Province, China
| | - Bo-Hao Tang
- Department of Clinical Pharmacy, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, No. 44, Wenhua West Road, Jinan, Shandong Province, China
| | - Min Kan
- Department of Clinical Pharmacy, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, No. 44, Wenhua West Road, Jinan, Shandong Province, China
| | - Hai-Yan Shi
- Department of Clinical Pharmacy, Clinical Trial Center, Shandong Provincial Qianfoshan Hospital, The First Affiliated Hospital of Shandong First Medical University, Jinan, China
| | - Yi Zheng
- Department of Clinical Pharmacy, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, No. 44, Wenhua West Road, Jinan, Shandong Province, China
| | - Bao-Ping Xu
- China National Clinical Research Center for Respiratory Diseases, Respiratory Department, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - A-Dong Shen
- Beijing Key Laboratory of Pediatric Respiratory Infection Diseases, Key Laboratory of Major Diseases in Children, Ministry of Education, National Clinical Research Center for Respiratory Diseases, National Key Discipline of Pediatrics (Capital Medical University), Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, 100045, China
| | - Evelyne Jacqz-Aigrain
- Department of Pediatric Pharmacology and Pharmacogenetics, Hôpital Robert Debré, APHP, Paris, France.,University Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Li-Yuan Tian
- Department of Respiratory Care, Children's Hospital of Hebei Province affiliated to Hebei Medical University, Shijiazhuang, China
| | - Wei Zhao
- Department of Clinical Pharmacy, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, No. 44, Wenhua West Road, Jinan, Shandong Province, China. .,Department of Clinical Pharmacy, Clinical Trial Center, Shandong Provincial Qianfoshan Hospital, The First Affiliated Hospital of Shandong First Medical University, Jinan, China.
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Tian LY, Li YL, Wu Y, Zhang Y. [Meta-analysis of efficacy of pressure therapy in treating patients with hypertrophic scars]. Zhonghua Shao Shang Za Zhi 2019; 35:668-675. [PMID: 31594185 DOI: 10.3760/cma.j.issn.1009-2587.2019.09.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To systematically evaluate the efficacy of pressure therapy in treating patients with hypertrophic scars by meta-analysis. Methods: Databases including PubMed, Embase, Web of Science, and Cochrane Library were retrieved with the search terms"hypertrophic scar, hyperplastic scar, HTS, pressure therapy, pressure treatment, and the Chinese Journals Full-text Database was retrieved with the search terms in Chinese version",,,,"to obtain the publicly published randomized controlled trials about pressure therapy in the treatment of patients with hypertrophic scar from the establishment of each database to July 2017. The measurement indexes included the effective ratio, Vancouver Scar Scale (VSS) score, scar vascularity, scar hardness, scar pigment, scar thickness, and value of scar color (brightness, red, and yellow). RevMan 5.3 and Stata 12.0 statistical software were used to conduct a meta-analysis of eligible studies. Results: A total of 667 hypertrophic scar patients were enrolled in 11 articles, including 362 patients in pressure therapy group who received pressure treatment and 305 patients in untreated group who received no treatment. The bias risks of the 11 studies included were uncertain. Compared with those of untreated group, the effective ratio of patients in pressure therapy group was significantly increased, with the relative risk of 5.98 (95% confidence interval=1.83-19.46, P<0.01); the VSS score and scar vascularity of patients in pressure therapy group were obviously decreased, with weighted mean differences of -2.24 and -0.66 respectively (95% confidence interval=-4.16--0.33, -1.21--0.12, P<0.05); the scar hardness, scar pigment, scar thickness, and value of scar color (brightness, red, and yellow) of patients in pressure therapy group were not changed obviously (P≥0.05). Significant heterogeneity existed in the included studies of the effective ratio, VSS score, scar vascularity, scar hardness, scar pigment, and scar thickness, P<0.01, I(2)=90%, 87%, 80%, 93%, 86%, 94%. Pressure range might be the heterogeneity source of effective ratio, and pressure clothing combined with pressure pad therapy might be a heterogeneous source of VSS score. Sensitivity analysis showed that the combined effect size results were stable in the effective ratio and scar pigment, but not stable in the VSS score, scar thickness, scar hardness, and scar vascularity. There was no publication bias in the effective ratio, VSS score, scar hardness, scar pigment, and scar vascularity (P>0.1), while there was publication bias in the scar thickness (95% confidence interval=-19.77--3.30, P<0.1). Conclusions: Compared with patients without treatment, in the treatment of hypertrophic scars, pressure therapy can obviously increase the effective ratio, reduce the VSS score and scar vascularity, but can not obviously improve the scar hardness, scar pigment, scar thickness, and value of scar color (brightness, red, and yellow).
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Affiliation(s)
- L Y Tian
- Xiangya Nursing School, Central South University, Changsha 410013, China (Tian Lingyun is working at Nursing School of Anhui University of Chinese Medicine, Hefei 230012, China)
| | - Y L Li
- Nursing Department, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Y Wu
- Department of Burns, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Y Zhang
- Control Center of Infection, Xiangya Hospital, Central South University, Changsha 410008, China
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9
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Zhang XJ, Lv MM, Zhu XQ, Tian LY, Li JJ, Shao YP, Gao CJ, Sun XD. Microglia M1/M2 polarization contributes to electromagnetic pulse-induced brain injury. J BIOL REG HOMEOS AG 2019; 33:1051-1062. [PMID: 31392878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The development of electronic technology has attracted attention on the biological effects of electromagnetic fields (EMFs) and electromagnetic pulse (EMP). It remains controversial whether EMP irradiation is neurotoxic or beneficial for recovery from injuryies such as cerebral ischemia. Microglia is innate immune cells in the brain, exhibiting either neurotoxicity or neuroprotection effect during various central nervous system diseases, depending on their activation into a classical (M1) or alternative (M2) phenotype, respectively. The Toll-like receptor-4 (TLR4), myeloid differentiation factor 88 (MyD88) and nuclear factor kappa B (NFκB) pathway is important for microglia activation. In this study, we investigated the effect of EMP on neuronal apoptosis and microglia polarization in vivo and in vitro, using an EMP of 400 kV/m and 1 hertz for 200 pulses. Short EMP irradiation (≤24 h) resulted in microglial conversion from the resting to the M1-type state, activation of the TLR4/MyD88/NFκB pathway, higher levels of inflammatory cytokines including interleukin (IL)-6, IL-1β and tumor necrosis factor-α, as well as neuronal apoptosis induction. In contrast, long EMP irradiation (3 days) resulted in microglial activation into the M2-type, decreased apoptosis and inflammatory mediator production, and increased levels of the neuroprotective effectors IL-10, transforming growth factor beta, and brain-derived neurotrophic factor. EMP induces both neuronal damage and neuronal recovery by influencing the switch of M1/M2 polarization and the TLR4/MyD88/NFκB pathway.
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Affiliation(s)
- X J Zhang
- Department of Anesthesiology, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
- Department of Anesthesiology, Xi'an No. 4 Hospital, Affiliated Guangren Hospital, Xi'an Jiaotong University, Xi'an, China
| | - M M Lv
- Department of Anesthesiology, the 323 Hospital of the PLA, Xi'an, China
| | - X Q Zhu
- Department of Anesthesiology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - L Y Tian
- Department of Anesthesiology, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - J J Li
- Department of Anesthesiology, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Y P Shao
- Department of Anesthesiology, Xi'an No. 4 Hospital, Affiliated Guangren Hospital, Xi'an Jiaotong University, Xi'an, China
| | - C J Gao
- Department of Anesthesiology, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - X D Sun
- Department of Anesthesiology, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
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10
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Zhang B, Tian LY. Advances on the metabolism of cohesin in age-related chromosomal aneuploidy. Reprod Dev Med 2019. [DOI: 10.4103/2096-2924.274547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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11
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Zhou WH, He JQ, Guo SG, Walline J, Liu XY, Tian LY, Zhu HD, Yu XZ, Li Y. Venous thromboembolism in the emergency department: A survey of current best practice awareness in physicians and nurses in China. World J Emerg Med 2019; 10:5-13. [PMID: 30598712 DOI: 10.5847/wjem.j.1920-8642.2019.01.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND For emergency department (ED) patients, risk assessment, prophylaxis, early diagnosis and appropriate treatment of venous thromboembolism (VTE) are essential for preventing morbidity and mortality. This study aimes to investigate knowledge amongst emergency medical staff in the management of VTE. METHODS We designed a questionnaire based on multiple scales. The questionnaire was distributed to the medical and nursing clinical staff in the large urban ED of a medical center in Northern China. Data was described with percentages and the Kruskal-Wallis test was used to compare ranked data between different groups. The statistical analysis was done using the SPSS 22.0 software. RESULTS In this survey, 180 questionnaires were distributed and 174 valid responses (response rate of 96.67%) were collected and analyzed. In scores of VTE knowledge, no significant differences were found with respect to job (doctor vs. nurse), the number of years working in clinical medicine, education level, and current position, previous hospital experience and nurses' current work location within the ED. However, in pair wise comparison, we found participants who worked in ED for more than 5 years (n=83) scored significantly higher on the questionnaire than those under 5 years (n=91) (95.75 vs. 79.97, P=0.039). There was a significant difference in some questions based on gender, age, job, and nurse work location, number of working years, education level, and different ED working lifetime. CONCLUSION Our survey has shown deficiencies among ED medical staff in knowledge and awareness of the management of VTE. We recommend several changes be considered, such as the introduction of an interdisciplinary workshop for medical staff; the introduction of a standardized VTE protocol; a mandatory study module on VTE for new physicians and nurses; the introduction of a mandatory reporting system for adverse events (including VTE).
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Affiliation(s)
- Wen-Hua Zhou
- Emergency Department, Peking Union Medical College Hospital, Beijing, China
| | - Jian-Qiang He
- Emergency Department, Peking Union Medical College Hospital, Beijing, China
| | - Shi-Gong Guo
- Oxford Centre for Enablement, Nuffield Orthopaedic Centre, Oxford, UK
| | - Joseph Walline
- Accident and Emergency Medicine Academic Unit, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | - Xiao-Ying Liu
- Emergency Department, Peking Union Medical College Hospital, Beijing, China
| | - Li-Yuan Tian
- Emergency Department, Peking Union Medical College Hospital, Beijing, China
| | - Hua-Dong Zhu
- Emergency Department, Peking Union Medical College Hospital, Beijing, China
| | - Xue-Zhong Yu
- Emergency Department, Peking Union Medical College Hospital, Beijing, China
| | - Yi Li
- Emergency Department, Peking Union Medical College Hospital, Beijing, China
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Yang JX, Guo QJ, Yang J, Zhou XY, Ren HY, Zhang HZ, Xu RX, Wang XD, Peters M, Zhu GX, Wei RF, Tian LY, Han XK. Red mud (RM)-Induced enhancement of iron plaque formation reduces arsenic and metal accumulation in two wetland plant species. Int J Phytoremediation 2016; 18:269-277. [PMID: 26505322 DOI: 10.1080/15226514.2015.1085830] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Human activities have resulted in arsenic (As) and heavy metals accumulation in paddy soils in China. Phytoremediation has been suggested as an effective and low-cost method to clean up contaminated soils. A combined soil-sand pot experiment was conducted to investigate the influence of red mud (RM) supply on iron plaque formation and As and heavy metal accumulation in two wetland plant species (Cyperus alternifolius Rottb., Echinodorus amazonicus Rataj), using As and heavy metals polluted paddy soil combined with three rates of RM application (0, 2%, 5%). The results showed that RM supply significantly decreased As and heavy metals accumulation in shoots of the two plants due to the decrease of As and heavy metal availability and the enhancement of the formation of iron plaque on the root surface and in the rhizosphere. Both wetland plants supplied with RM tended to have more Fe plaque, higher As and heavy metals on roots and in their rhizospheres, and were more tolerant of As and heavy metal toxicity. The results suggest that RM-induced enhancement of the formation of iron plaque on the root surface and in the rhizosphere of wetland plants may be significant for remediation of soils contaminated with As and heavy metals.
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Affiliation(s)
- J X Yang
- a Center for Environmental Remediation, Institute of Geographical Sciences and Natural Resources Research , Chinese Academy of Sciences , Beijing , P. R. China
| | - Q J Guo
- a Center for Environmental Remediation, Institute of Geographical Sciences and Natural Resources Research , Chinese Academy of Sciences , Beijing , P. R. China
| | - J Yang
- a Center for Environmental Remediation, Institute of Geographical Sciences and Natural Resources Research , Chinese Academy of Sciences , Beijing , P. R. China
| | - X Y Zhou
- a Center for Environmental Remediation, Institute of Geographical Sciences and Natural Resources Research , Chinese Academy of Sciences , Beijing , P. R. China
| | - H Y Ren
- a Center for Environmental Remediation, Institute of Geographical Sciences and Natural Resources Research , Chinese Academy of Sciences , Beijing , P. R. China
| | - H Z Zhang
- a Center for Environmental Remediation, Institute of Geographical Sciences and Natural Resources Research , Chinese Academy of Sciences , Beijing , P. R. China
- b University of Chinese Academy of Sciences , Beijing , P. R. China
| | - R X Xu
- a Center for Environmental Remediation, Institute of Geographical Sciences and Natural Resources Research , Chinese Academy of Sciences , Beijing , P. R. China
| | - X D Wang
- c College of Resource Environment and Tourism , Capital Normal University , Beijing , P. R. China
| | - M Peters
- a Center for Environmental Remediation, Institute of Geographical Sciences and Natural Resources Research , Chinese Academy of Sciences , Beijing , P. R. China
| | - G X Zhu
- a Center for Environmental Remediation, Institute of Geographical Sciences and Natural Resources Research , Chinese Academy of Sciences , Beijing , P. R. China
- b University of Chinese Academy of Sciences , Beijing , P. R. China
| | - R F Wei
- a Center for Environmental Remediation, Institute of Geographical Sciences and Natural Resources Research , Chinese Academy of Sciences , Beijing , P. R. China
- b University of Chinese Academy of Sciences , Beijing , P. R. China
| | - L Y Tian
- a Center for Environmental Remediation, Institute of Geographical Sciences and Natural Resources Research , Chinese Academy of Sciences , Beijing , P. R. China
- b University of Chinese Academy of Sciences , Beijing , P. R. China
| | - X K Han
- a Center for Environmental Remediation, Institute of Geographical Sciences and Natural Resources Research , Chinese Academy of Sciences , Beijing , P. R. China
- b University of Chinese Academy of Sciences , Beijing , P. R. China
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Lin YL, Han ZB, Xiong FY, Tian LY, Wu XJ, Xue SW, Zhou YR, Deng JX, Chen HX. Malignant transformation of 293 cells induced by ectopic expression of human Nanog. Mol Cell Biochem 2011; 351:109-16. [PMID: 21246261 DOI: 10.1007/s11010-011-0717-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2010] [Accepted: 01/04/2011] [Indexed: 01/06/2023]
Abstract
Tumor development has long been known to resemble abnormal embryogenesis. The ESC self-renewal gene NANOG is purportedly expressed in some epithelial cancer cells and solid tumors, but a casual role in tumor development has remained unclear. In order to more comprehensively elucidate the relationship between human Nanog and tumorigenesis, the hNanog was ectopically expressed in the 293 cell line to investigate its potential for malignant transformation of cells both in vitro and in vivo. Here we provide compelling evidence that the overexpression of hNanog resulted in increased cell proliferation, anchor-independent growth in soft agar, and formation of tumors after subcutaneous injection of athymic nude mice. Pathologic analysis revealed that these tumors were poorly differentiated. In analysis of the underlying molecular mechanism, two proteins, FAK and Ezrin, were identified to be upregulated in the hNanog expressing 293 cells. Our results demonstrate that hNanog is a potent human oncogene and has the ability to induce cellular transformation of human cells.
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Affiliation(s)
- Yan-Li Lin
- Laboratory of Cell Engineering, Institute of Biotechnology, 20 Dongdajie Street, Fengtai, Beijing 100071, People's Republic of China
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Shen W, Yang ZT, Tian LY, Wu XJ, Chen H, Huang PT, Deng JX. [The ht-PAm cDNA knock-in the goat beta-casein gene locus]. Sheng Wu Gong Cheng Xue Bao 2004; 20:361-5. [PMID: 15971606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The production of recombinant protein is one of the major successes of biotechnology, animal cells are required to synthesize proteins with the appropriate post-translational modifications. Transgenic animal mammary gland bioreactor are being used for this purpose. Gene targeting is a more powerful method to produce mammary gland bioreactor, and nuclear transfer from cultured somatic cells provides an wonderful means of cell-mediated transgensis. Here we describe efficient and reproducible gene targeting in goat fetal fibroblasts to place the human tissue plasminogen activator mutant (ht-PAm) cDNA at the beta-casein locus, and would produce the transgenic goat by nuclear transfer. To construct the gene targeting vector pGBC4tPA, the milk goat beta-casein genomic DNA sequence for homologous arms had been cloned firstly. The left arm was 6.3 kb fragment including goat beta-casein gene 5' flanking sequence, and the right arm was 2.4 kb fragement including beta-casein gene from exon 8 to exon 9. The ht-PAm cDNA was subcloned in the goat beta-casein gene exon 2, and the endogenous start condon was replaced by that of ht-PAm. The bacterial neomycin (neo) gene as positive selection marker gene, was placed in the beta-casein gene intron 7, the thymidine kinase (tk) as the negative selection marker gene, was just outside the right arm. The validity of the positive-negative selection vector (PNS), was tested, and targeting homologous recombination (HR) were elevated to 5-fold with the negative selection marker using the drug GANC. The DNA fragment in which two LoxP sequence was delected effectively using Cre recombinase in vitro. Goat fetal fibroblasts were thawed and cultured to subconfluence before transfection, about 10(7) fibroblasts were electoporated at 240V, 600 microF in 0.8 mL PBS buffer containing linear pGBC4tPA. transfected cells were cultured in collagen-coated 96-wellplate for 24h without selection, then added the drug G418 (600 microg/mL) and GANC (2 micromol/L). After 12 days of selection, well separated G418r/GANCr clones were isolated and expanded in 24-wellplate. 244 clones were selected, and only 90 clones could grow and be tested by PCR screening for targeting. The primary result demonstrated that 31 targeting cell clones with homologous recombination events were obtained, and 2 cell clones was verified by DNA sequence analysis on the homologous recombination region.
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Affiliation(s)
- Wei Shen
- Institute of Biotechnology, Academy of Military Medical Science, Beijing 100071, China.
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