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Wang Z, Shi W, Wu L, Xiao Y, Wang M, Zhang S, Chen Z, Yin G, Xie X, Bi S, Liu S, Kong W, Zhou J. TMF inhibits extracellular matrix degradation by regulating the C/EBPβ/ADAMTS5 signaling pathway in osteoarthritis. Biomed Pharmacother 2024; 174:116501. [PMID: 38554527 DOI: 10.1016/j.biopha.2024.116501] [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: 11/21/2023] [Revised: 03/19/2024] [Accepted: 03/27/2024] [Indexed: 04/01/2024] Open
Abstract
Osteoarthritis (OA) is a chronic joint disease, characterized by degenerative destruction of articular cartilage. Chondrocytes, the unique cell type in cartilage, mediate the metabolism of extracellular matrix (ECM), which is mainly constituted by aggrecan and type II collagen. A disintegrin and metalloproteinase with thrombospondin 5 (ADAMTS5) is an aggrecanase responsible for the degradation of aggrecan in OA cartilage. CCAAT/enhancer binding protein β (C/EBPβ), a transcription factor in the C/EBP family, has been reported to mediate the expression of ADAMTS5. Our previous study showed that 5,7,3',4'-tetramethoxyflavone (TMF) could activate the Sirt1/FOXO3a signaling in OA chondrocytes. However, whether TMF protected against ECM degradation by down-regulating C/EBPβ expression was unknown. In this study, we found that aggrecan expression was down-regulated, and ADAMTS5 expression was up-regulated. Knockdown of C/EBPβ could up-regulate aggrecan expression and down-regulate ADAMTS5 expression in IL-1β-treated C28/I2 cells. TMF could compromise the effects of C/EBPβ on OA chondrocytes by activating the Sirt1/FOXO3a signaling. Conclusively, TMF exhibited protective activity against ECM degradation by mediating the Sirt1/FOXO3a/C/EBPβ pathway in OA chondrocytes.
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Affiliation(s)
- Zeyu Wang
- College of Rehabilitation, Gannan Medical University, Ganzhou 341000, China
| | - Weimei Shi
- College of Pharmacy, Gannan Medical University, Ganzhou 341000, China
| | - Longhuo Wu
- College of Pharmacy, Gannan Medical University, Ganzhou 341000, China
| | - Yaosheng Xiao
- Department of Orthopedics, First Affiliated Hospital of Gannan Medical University, Ganzhou 341000, China
| | - Miaofei Wang
- College of Pharmacy, Gannan Medical University, Ganzhou 341000, China
| | - Sainan Zhang
- College of Pharmacy, Gannan Medical University, Ganzhou 341000, China
| | - Zhixi Chen
- College of Pharmacy, Gannan Medical University, Ganzhou 341000, China
| | - Guoqiang Yin
- Ganzhou Hospital Affiliated to Nanchang University, Ganzhou 341000, China
| | - Xunlu Xie
- Department of Pathology, Ganzhou People's Hospital, Ganzhou 341000, China
| | - Shengrong Bi
- Department of Joint Surgery, Ganzhou People's Hospital, Ganzhou 341000, China
| | - Shiwei Liu
- Department of Joint Surgery, Ganzhou People's Hospital, Ganzhou 341000, China
| | - Weihao Kong
- Department of Joint Surgery, Ganzhou People's Hospital, Ganzhou 341000, China
| | - Jianguo Zhou
- Department of Joint Surgery, Ganzhou People's Hospital, Ganzhou 341000, China.
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Zheng Y, Liu X, Yang K, Chen X, Wang J, Zhao K, Dong W, Yin G, Yu S, Yang S, Lu M, Su G, Zhao S. Cardiac MRI feature-tracking-derived torsion mechanics in systolic and diastolic dysfunction in systemic light-chain cardiac amyloidosis. Clin Radiol 2024; 79:e692-e701. [PMID: 38388253 DOI: 10.1016/j.crad.2023.12.027] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 11/09/2023] [Accepted: 12/29/2023] [Indexed: 02/24/2024]
Abstract
AIM To describe the myocardial torsion mechanics in cardiac amyloidosis (CA), and evaluate the correlations between left ventricle (LV) torsion mechanics and conventional parameters using cardiac magnetic resonance imaging feature tracking (CMR-FT). MATERIALS AND METHODS One hundred and thirty-nine patients with light-chain CA (AL-CA) were divided into three groups: group 1 with preserved systolic function (LV ejection fraction [LVEF] ≥50%, n=55), group 2 with mildly reduced systolic function (40% ≤ LVEF <50%, n=51), and group 3 with reduced systolic function (LVEF <40%, n=33), and compared with age- and gender-matched healthy controls (n=26). All patients underwent cine imaging and late gadolinium-enhancement (LGE). Cine images were analysed offline using CMR-FT to estimate torsion parameters. RESULTS Global torsion, base-mid torsion, and peak diastolic torsion rate (diasTR) were significantly impaired in patients with preserved systolic function (p<0.05 for all), whereas mid-apex torsion and peak systolic torsion rate (sysTR) were preserved (p>0.05 for both) compared with healthy controls. In patients with mildly reduced systolic function, global torsion and base-mid torsion were lower compared to those with preserved systolic function (p<0.05 for both), while mid-apex torsion, sysTR, and diasTR were preserved (p>0.05 for all). In patients with reduced systolic function, only sysTR was significantly worse compared with mildly reduced systolic function (p<0.05). At multivariable analysis, right ventricle (RV) end-systolic volume RVESV index and NYHA class were independently related to global torsion, whereas LVEF was independently related to sysTR. RV ejection fraction (RVEF) was independently related to diasTR. LV global torsion performed well (AUC 0.71; 95% confidence interval [CI]: 0.61, 0.77) in discriminating transmural from non-transmural LGE in AL-CA patients. CONCLUSION LV torsion mechanics derived by CMR-FT could help to monitor LV systolic and diastolic function in AL-CA patients and function as a new imaging marker for LV dysfunction and LGE transmurality.
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Affiliation(s)
- Y Zheng
- Department of Radiology, Tsinghua University Hospital, Tsinghua University, Beijing, 100084, China; Department of Magnetic Resonance Imaging, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital and National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beilishi Road No 167, Xicheng District, Beijing 100037, China
| | - X Liu
- Department of Neurology, Beijing Geriatric Hospital, Wenquan Road No 118, Haidian District, Beijing 100095, China
| | - K Yang
- Department of Magnetic Resonance Imaging, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital and National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beilishi Road No 167, Xicheng District, Beijing 100037, China
| | - X Chen
- Department of Magnetic Resonance Imaging, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital and National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beilishi Road No 167, Xicheng District, Beijing 100037, China
| | - J Wang
- Department of Magnetic Resonance Imaging, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital and National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beilishi Road No 167, Xicheng District, Beijing 100037, China
| | - K Zhao
- Paul C. Lauterbur Research Center for Biomedical Imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, SZ University Town, Shenzhen 518055, China
| | - W Dong
- Department of Magnetic Resonance Imaging, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital and National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beilishi Road No 167, Xicheng District, Beijing 100037, China
| | - G Yin
- Department of Magnetic Resonance Imaging, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital and National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beilishi Road No 167, Xicheng District, Beijing 100037, China
| | - S Yu
- Department of Radiology, West China Hospital, Sichuan University, 37# Guo Xue Xiang, Chengdu 610041, Sichuan, China
| | - S Yang
- Department of Magnetic Resonance Imaging, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital and National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beilishi Road No 167, Xicheng District, Beijing 100037, China
| | - M Lu
- Department of Magnetic Resonance Imaging, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital and National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beilishi Road No 167, Xicheng District, Beijing 100037, China
| | - G Su
- Department of Cardiology, Jinan Central Hospital, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, Shandong, 250013, China.
| | - S Zhao
- Department of Magnetic Resonance Imaging, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital and National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beilishi Road No 167, Xicheng District, Beijing 100037, China.
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Tang L, Ding C, Li H, Zhou X, Yin G. A Real-World Disproportionality Analysis of Drug-Induced Immune Hemolytic Anemia in the FDA Adverse Event Reporting System. Ann Pharmacother 2024; 58:375-382. [PMID: 37522435 DOI: 10.1177/10600280231189897] [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] [Indexed: 08/01/2023] Open
Abstract
BACKGROUND Drug-induced immune hemolytic anemia (DIIHA) is a rare but potentially life-threatening pharmacogenic hematological adverse effect. Updating the risk of DIIHA among the currently available drugs based on spontaneously reported adverse event data is of great significance. OBJECTIVE This study aimed to identify the top 50 drugs associated with immune hemolytic anemia in adults as well as common drugs that could cause immune hemolytic anemia in children based on the United States Food and Drug Administration Adverse Event Reporting System (FAERS) database. METHODS We extracted adverse events (AE) in the FAERS database from Q1 2004 to Q3 2022 using Open vigil2.1. We use the high-level term "anaemias haemolytic immune" according to the Medical Dictionary for Regulatory Activities (MedDRA) Dictionary (version 24.0). The reported correlation between drugs and DIIHA risk was identified by reported odds ratio (ROR) and proportional reporting ratio (PRR). RESULTS There were 10500309 AEs in FAERS from 2004Q1 to 2022Q3, of which 2326 (0.02%) were DIIHA cases. The incidence of DIIHA is comparable between males and females. The most common drugs associated with DIIHA in adults and children are summarized according to the number of AE reports. The top 3 categories in terms of quantity of drugs are antineoplastic agents, immunosuppressants, and antibiotics for systemic use. The top 5 drugs in terms of ROR and PRR are alemtuzumab, daclizumab, fludarabine, busulfan, and bendamustine in adults, with entecavir, treosulfan, vinorelbine, pegademase, and alemtuzumab for children. CONCLUSIONS Our study identified the most common drugs that could induce DIIHA in adults and children, as well as the respective ROR and PRR value to discover new drug signals. This study provides references to clinicians for the management of rare DIIHA.
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Affiliation(s)
- Linlin Tang
- Department of Pharmacy, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Chuanhua Ding
- Department of Pharmacy, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Hongying Li
- Department of Pharmacy, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Xueheng Zhou
- Department of Pharmacy, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Guoqiang Yin
- Department of Pharmacy, Affiliated Hospital of Weifang Medical University, Weifang, China
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Tang L, Ding C, Li H, Yin G, Zhang H, Liu WS, Ji Y, Li H. A pharmacovigilance study of adverse event profiles and haemorrhagic safety of bevacizumab based on the FAERS database. Expert Opin Drug Saf 2024; 23:213-220. [PMID: 37581403 DOI: 10.1080/14740338.2023.2248876] [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: 03/14/2023] [Revised: 07/07/2023] [Accepted: 07/10/2023] [Indexed: 08/16/2023]
Abstract
BACKGROUND Bevacizumab is used for the treatment of advanced malignant tumors; it acts by inhibiting angiogenesis. This study aimed to examine adverse events (AEs) of bevacizumab, especially hemorrhage, using the Food and Drug Administration Adverse Event Reporting System (FAERS) database. RESEARCH DESIGN AND METHODS The reporting odds ratio (ROR) and proportional reporting ratio (PRR) were used to analyze the AEs of bevacizumab using FAERS registration data from January 2004 to September 2022. Clinical information regarding hemorrhagic signals was further analyzed. RESULTS The number of bevacizumab-associated AE reports was 96,477. Our study found that 892 significant preferred terms (PTs) were spread throughout 25 organ systems. The system organ classes (SOCs) focus on general disorders, administration site conditions, blood and lymphatic system disorders, injury, poisoning, and procedural complications. A total of 2,847 bevacizumab-related hemorrhage cases were reported, and 37 hemorrhagic signals were identified. Hemorrhagic signals were focused on SOC levels in vascular, gastrointestinal, and nervous system disorders. Colorectal, lung, and breast cancers are the three most common malignancies associated with BV-induced hemorrhage. CONCLUSION The AE report from the present study confirms the majority of label information for bevacizumab, while also identifying new AEs. In addition, this was a large descriptive study of bevacizumab-induced hemorrhage.
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Affiliation(s)
- Linlin Tang
- Department of Pharmacy, Affiliated Hospital of Weifang Medical University, Weifang, Shandong Province, China
| | - Chuanhua Ding
- Department of Pharmacy, Affiliated Hospital of Weifang Medical University, Weifang, Shandong Province, China
| | - Hongying Li
- Department of Pharmacy, Affiliated Hospital of Weifang Medical University, Weifang, Shandong Province, China
| | - Guoqiang Yin
- Department of Pharmacy, Affiliated Hospital of Weifang Medical University, Weifang, Shandong Province, China
| | - Haixia Zhang
- Department of Pharmacy, Affiliated Hospital of Weifang Medical University, Weifang, Shandong Province, China
| | - Wen Shan Liu
- Department of Pharmacy, Affiliated Hospital of Weifang Medical University, Weifang, Shandong Province, China
| | - Yinghui Ji
- Department of Pharmacy, Affiliated Hospital of Weifang Medical University, Weifang, Shandong Province, China
| | - Hui Li
- Department of Pharmacy, Affiliated Hospital of Weifang Medical University, Weifang, Shandong Province, China
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Ren Q, Liu Z, Wu L, Yin G, Xie X, Kong W, Zhou J, Liu S. C/EBPβ: The structure, regulation, and its roles in inflammation-related diseases. Biomed Pharmacother 2023; 169:115938. [PMID: 38000353 DOI: 10.1016/j.biopha.2023.115938] [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: 09/06/2023] [Revised: 11/08/2023] [Accepted: 11/21/2023] [Indexed: 11/26/2023] Open
Abstract
Inflammation, a mechanism of the human body, has been implicated in many diseases. Inflammatory responses include the release of inflammatory mediators by activating various signaling pathways. CCAAT/enhancer binding protein β (C/EBPβ), a transcription factor in the C/EBP family, contains the leucine zipper (bZIP) domain. The expression of C/EBPβ is mediated at the transcriptional and post-translational levels, such as phosphorylation, acetylation, methylation, and SUMOylation. C/EBPβ has been involved in inflammatory responses by mediating several signaling pathways, such as MAPK/NF-κB and IL-6/JAK/STAT3 pathways. C/EBPβ plays an important role in the pathological development of inflammation-related diseases, such as osteoarthritis, pneumonia, hepatitis, inflammatory bowel diseases, and rheumatoid arthritis. Here, we comprehensively discuss the structure and biological effects of C/EBPβ and its role in inflammatory diseases.
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Affiliation(s)
- Qun Ren
- Department of Pharmacy, Gannan Medical University, Ganzhou 341000, China
| | - Zhaowen Liu
- Department of Pharmacy, Gannan Medical University, Ganzhou 341000, China
| | - Longhuo Wu
- Department of Pharmacy, Gannan Medical University, Ganzhou 341000, China
| | - Guoqiang Yin
- Ganzhou People's Hospital Affiliated to Nanchang University, Ganzhou 341000, China
| | - Xunlu Xie
- Department of Joint Surgery, Ganzhou People's Hospital, Ganzhou 341000, China
| | - Weihao Kong
- Department of Joint Surgery, Ganzhou People's Hospital, Ganzhou 341000, China
| | - Jianguo Zhou
- Department of Joint Surgery, Ganzhou People's Hospital, Ganzhou 341000, China
| | - Shiwei Liu
- Department of Joint Surgery, Ganzhou People's Hospital, Ganzhou 341000, China.
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Xiao Y, Xie X, Chen Z, Yin G, Kong W, Zhou J. Advances in the roles of ATF4 in osteoporosis. Biomed Pharmacother 2023; 169:115864. [PMID: 37948991 DOI: 10.1016/j.biopha.2023.115864] [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: 09/07/2023] [Revised: 11/01/2023] [Accepted: 11/07/2023] [Indexed: 11/12/2023] Open
Abstract
Osteoporosis (OP) is characterized by reduced bone mass, decreased strength, and enhanced bone fragility fracture risk. Activating transcription factor 4 (ATF4) plays a role in cell differentiation, proliferation, apoptosis, redox balance, amino acid uptake, and glycolipid metabolism. ATF4 induces the differentiation of bone marrow mesenchymal stem cells (BM-MSCs) into osteoblasts, increases osteoblast activity, and inhibits osteoclast formation, promoting bone formation and remodeling. In addition, ATF4 mediates the energy metabolism in osteoblasts and promotes angiogenesis. ATF4 is also involved in the mediation of adipogenesis. ATF4 can selectively accumulate in osteoblasts. ATF4 can directly interact with RUNT-related transcription factor 2 (RUNX2) and up-regulate the expression of osteocalcin (OCN) and osterix (Osx). Several upstream factors, such as Wnt/β-catenin and BMP2/Smad signaling pathways, have been involved in ATF4-mediated osteoblast differentiation. ATF4 promotes osteoclastogenesis by mediating the receptor activator of nuclear factor κ-B (NF-κB) ligand (RANKL) signaling. Several agents, such as parathyroid (PTH), melatonin, and natural compounds, have been reported to regulate ATF4 expression and mediate bone metabolism. In this review, we comprehensively discuss the biological activities of ATF4 in maintaining bone homeostasis and inhibiting OP development. ATF4 has become a therapeutic target for OP treatment.
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Affiliation(s)
- Yaosheng Xiao
- Department of Orthopaetics, First Affiliated Hospital of Gannan Medical University, Ganzhou 341000, China
| | - Xunlu Xie
- Department of Pathology, Ganzhou People's Hospital, Ganzhou 341000, China
| | - Zhixi Chen
- Department of Pharmacy, Gannan Medical University, Ganzhou 341000, China
| | - Guoqiang Yin
- Ganzhou Hospital Affiliated to Nanchang University, Ganzhou 341000, China
| | - Weihao Kong
- Department of Joint Surgery, Ganzhou People's Hospital, Ganzhou 341000, China
| | - Jianguo Zhou
- Department of Joint Surgery, Ganzhou People's Hospital, Ganzhou 341000, China.
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Yin G, Li R, Liu Y, Wang X, Wu B. [Notch signaling pathway inhibitor DAPT improves alcohol-induced neuronal differentiation impairment in zebrafish]. Nan Fang Yi Ke Da Xue Xue Bao 2023; 43:889-899. [PMID: 37439160 DOI: 10.12122/j.issn.1673-4254.2023.06.03] [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] [Subscribe] [Scholar Register] [Indexed: 07/14/2023]
Abstract
OBJECTIVE To explore the role of the Notch signaling pathway in regulating neuronal differentiation and sensorimotor ability in a zebrafish model of fetal alcohol spectrum disorder. METHODS Zebrafish embryos treated with DMSO or 50 μmol/L DAPT (a Notch signaling pathway inhibitor) were examined for mortality rate, hatching rate, malformation rate, and body length at 15 days post fertilization (dpf). The mRNA expression levels of sox2, neurogenin1 and huc in the treated zebrafish embryos were detected using in situ hybridization and qRT-PCR, and their behavioral responses to strong light and vibration stimulation were observed. The zebrafish embryos were then exposed to DMSO, 1.5% ethanol, DAPT, or both ethanol and DAPT, and the changes in mRNA expression levels of sox2, neurogenin1, huc, and the Notch signaling pathway genes as well as behavioral responses were evaluated. RESULTS Exposure to 50 μmol/L DAPT significantly increased the mortality rate of 1 dpf zebrafish embryos (P < 0.01), decreased the hatching rate of 2 dpf embryos (P < 0.01), increased the malformation rate of 3 dpf embryos (P < 0.001), and reduced the body length of 15 dpf embryos (P < 0.05). DAPT treatment significantly downregulated sox2 mRNA expression (P < 0.01) and increased neurogenin1 (P < 0.05) and huc (P < 0.01) mRNA expressions in zebrafish embryos. The zebrafish with DAPT treatment exhibited significantly shortened movement distance (P < 0.001) and lowered movement speed (P < 0.05) in response to all the stimulation conditions. Compared with treatment with 1.5% ethanol alone, which obviously upregulated notch1a, her8a and NICD mRNA expressions in zebrafish embryos (P < 0.05), the combined treatment with ethanol and DAPT significantly increased neurogenin1 and huc mRNA expression, decreased sox2 mRNA expression (P < 0.01), and increased the moving distance and moving speed of zebrafish embryos in response to strong light stimulation (P < 0.05). CONCLUSION Ethanol exposure causes upregulation of the Notch signaling pathway and impairs neuronal differentiation and sensorimotor ability of zebrafish embryos, and these detrimental effects can be lessened by inhibiting the Notch signaling pathway.
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Affiliation(s)
- G Yin
- Medical Research Center of Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - R Li
- Department of Radiation Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou 510095, China
| | - Y Liu
- Department of Neurology, Liaocheng People's Hospital, Liaocheng 252000, China
| | - X Wang
- Medical Research Center of Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - B Wu
- Medical Research Center of Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
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Chen Z, Cui C, Yin G, Jiang Y, Wu W, Lei J, Guo S, Zhang Z, Zhao S, Lu M. Detection of haemodynamic obstruction in hypertrophic cardiomyopathy using the sub-aortic complex: a cardiac MRI and Doppler study. Clin Radiol 2023; 78:421-429. [PMID: 37024359 DOI: 10.1016/j.crad.2023.02.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 02/21/2023] [Accepted: 02/24/2023] [Indexed: 04/08/2023]
Abstract
AIM To investigate the "sub-aortic complex (SAC)", a new cardiac magnetic resonance imaging (CMRI)-derived parameter, for the evaluation of left ventricular (LV) outflow tract (LVOT) obstruction in patients with hypertrophic cardiomyopathy (HCM), compared with conventional CMRI parameters and Doppler echocardiography. MATERIALS AND METHODS A total of 157 consecutive patients with HCM were recruited retrospectively. The patients were divided into two groups, 87 with LVOT obstruction and 70 without obstruction. The SAC was defined as a specific anatomical SAC affecting the LVOT, which were measured on the LV three-chamber steady-state free precession (SSFP) cine image at the end-systolic phase. The relations between the existence and severity of obstruction and SAC index (SACi) were evaluated using Pearson's correlation coefficient, receiver operating characteristic (ROC) curves, and logistic regression. RESULTS The SACs were significantly different between the obstructive and non-obstructive groups. The ROC curves indicated that the SACi was able to discriminate obstructive and non-obstructive patients with the best predictive accuracy (AUC = 0.949, p<0.001). The SACi was an independent predictor of LVOT obstruction and there was a significant negative correlation between resting LVOT pressure gradient and SACi (r=0.72 p<0.001). In the subgroup of patients with or without severe basal septal hypertrophy, the SACi was still able to predict LVOT obstruction with excellent diagnostic accuracy (AUC = 0.944 and 0.948, p<0.001, respectively). CONCLUSION The SAC is a reliable and straightforward CMRI marker for assessing LVOT obstruction. It is more effective than CMRI two-dimensional flow in diagnosing the severity of obstruction in patients with HCM.
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Affiliation(s)
- Z Chen
- Department of Magnetic Resonance Imaging, Cardiovascular Imaging and Intervention Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, People's Republic of China; Department of Radiology, The First Hospital of Lanzhou University, Intelligent Imaging Medical Engineering Research Center of Gansu Province, Accurate Image Collaborative Innovation International Science and Technology Cooperation Base of Gansu Province, Gansu Province Clinical Research Center for Radiology Imaging, Lanzhou 73000, People's Republic of China
| | - C Cui
- Department of Magnetic Resonance Imaging, Cardiovascular Imaging and Intervention Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, People's Republic of China
| | - G Yin
- Department of Magnetic Resonance Imaging, Cardiovascular Imaging and Intervention Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, People's Republic of China
| | - Y Jiang
- Department of Echocardiography, Cardiovascular Imaging and Intervention Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, People's Republic of China
| | - W Wu
- Department of Echocardiography, Cardiovascular Imaging and Intervention Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, People's Republic of China
| | - J Lei
- Department of Radiology, The First Hospital of Lanzhou University, Intelligent Imaging Medical Engineering Research Center of Gansu Province, Accurate Image Collaborative Innovation International Science and Technology Cooperation Base of Gansu Province, Gansu Province Clinical Research Center for Radiology Imaging, Lanzhou 73000, People's Republic of China
| | - S Guo
- Department of Radiology, The First Hospital of Lanzhou University, Intelligent Imaging Medical Engineering Research Center of Gansu Province, Accurate Image Collaborative Innovation International Science and Technology Cooperation Base of Gansu Province, Gansu Province Clinical Research Center for Radiology Imaging, Lanzhou 73000, People's Republic of China
| | - Z Zhang
- Department of Cardiology, The First Hospital of Lanzhou University, Lanzhou 730000, People's Republic of China
| | - S Zhao
- Department of Magnetic Resonance Imaging, Cardiovascular Imaging and Intervention Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, People's Republic of China.
| | - M Lu
- Department of Magnetic Resonance Imaging, Cardiovascular Imaging and Intervention Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, People's Republic of China.
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Zhou X, Yin G, Huang Y, Li Y, Xie D. Biodegradable Nanofibrillated Cellulose/Poly-(butylene adipate-co-terephthalate) Composite Film with Enhanced Barrier Properties for Food Packaging. Molecules 2023; 28:molecules28062689. [PMID: 36985663 PMCID: PMC10051323 DOI: 10.3390/molecules28062689] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/09/2023] [Accepted: 03/09/2023] [Indexed: 03/19/2023] Open
Abstract
Biodegradable composites consisting of Poly-(butylene adipate-co-terephthalate) (PBAT), thermoplastic starch, hydrophobically modified nanofibrillated cellulose (HMNC), and green surfactant (sucrose fatty acid ester) were prepared via the melt-mixing and film-blowing process (PBAT-HMNC). The composites were characterized using the Fourier transform infrared spectroscope (FT-IR), scanning electron microscope (SEM), and thermogravimetric analyzer (TGA). The mechanical and barrier properties were systematically studied. The results indicated that PBAT-HMNC composites exhibited excellent mechanical and barrier properties. The tensile strength reached the maximum value (over 13 MPa) when the HMNC content was 0.6% and the thermal decomposition temperature decreased by 1 to 2 °C. The lowest values of the water vapor transmission rate (WVTR) and the oxygen transmission rate (OTR) were obtained from the composite with 0.6 wt% HMNC, prepared via the film-bowing process with the values of 389 g/(m2·day) and 782 cc/(m2·day), which decreased by 51.3% and 42.1%, respectively. The Agaricus mushrooms still had a commodity value after 11 days of preservation using the film with 0.6 wt% HMNC. PBAT-HMNC composites have been proven to be promising nanocomposite materials for packaging.
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Affiliation(s)
- Xiangyang Zhou
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Guoqiang Yin
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Yunchao Huang
- Guangdong Biomaterials Engineering Technology Research Center, Institute of Biological and Medical Engineering, Guangdong Academy of Sciences, Guangzhou 510316, China
- Yingde Yunchao Polymer Material Co., Ltd., Qingyuan 510500, China
| | - Yuan Li
- Guangdong Biomaterials Engineering Technology Research Center, Institute of Biological and Medical Engineering, Guangdong Academy of Sciences, Guangzhou 510316, China
- Correspondence: (Y.L.); (D.X.)
| | - Dong Xie
- Guangdong Biomaterials Engineering Technology Research Center, Institute of Biological and Medical Engineering, Guangdong Academy of Sciences, Guangzhou 510316, China
- Correspondence: (Y.L.); (D.X.)
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10
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Li D, Yin G, Li Z. Detection of non-small cell lung cancer marker CYFRA21-1 via Mxene-based immunoelectrochemical sensor. INT J ELECTROCHEM SC 2023. [DOI: 10.1016/j.ijoes.2023.100044] [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: 02/23/2023]
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11
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Zhu G, Shang J, Wen W, Li Y, Yin G. Multilamellar spherical micelles of alkali lignin: dissipative particle dynamics simulations. J Mol Model 2023; 29:33. [PMID: 36622451 DOI: 10.1007/s00894-023-05442-6] [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: 08/27/2022] [Accepted: 01/02/2023] [Indexed: 01/10/2023]
Abstract
CONTEXT Lignin has an immense potential for the production of lignin-based functional materials. In this work, effect of 2-chloro-ethyltrimethyl ammonium chloride (AC)-grafted alkali lignin (AL) on the morphologies in water was investigated by dissipative particle dynamics (DPD) simulations. The results showed that AL molecules formed spherical micelles, but the corresponding phenylpropane units of AL were randomly distributed in spherical micelles. However, AC-grafted modification of phenolic hydroxyl groups in AL led to the formation of multilamellar spherical micelles. The formation of multilamellar spherical micelles of AL mainly went through four stages: small clusters, larger aggregates with a core-shell structure, trilaminar, and multilamellar spherical micelles. AL molecules resulted in dimethomorph molecules being randomly distributed in the spherical micelle, while the dimethomorph molecules were perfectly entrapped into the spherical micelles of AC-grafted AL. Various molecular weights of AL had no effect on the formation and size of multilamellar spherical micelles. With increasing the content of AC-grafted AL, small clusters, multilamellar spherical micelles, tube-like, and lamellar aggregates were observed successively. This work highlights the potential of lignin to prepare monodispersed lignin-based functional colloidal spheres. METHODS Coarse-grained beads were performed energy minimization, geometric optimization, NPT ensemble (298 K and 1.0 bar), and NVT ensemble (298 K) calculations. DPD simulations were carried out at 300,000 steps in a 30×30×30 Rc3 cubic box with Materials Studio 7.0 program.
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Affiliation(s)
- Guodian Zhu
- School of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China. .,Key Laboratory of Pulp and Paper Science and Technology of Ministry of Education, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, China. .,Guangzhou Key Laboratory of Clean Transportation Energy Chemistry, Guangdong University of Technology, Guangzhou, 510006, China.
| | - Jingqi Shang
- School of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China
| | - Weihong Wen
- School of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China
| | - Yuanyuan Li
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China
| | - Guoqiang Yin
- School of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China.
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Lu S, Wang S, Kim RY, Zhang J, Wang X, Wang W, Zhu G, Zhou J, Tan Y, Tan M, Li M, Yin G, Li J, Feng M, Lang J. Clinical outcomes of conventional
HDR
intracavitary brachytherapy combined with complementary applicator‐guided intensity modulated radiotherapy boost in patients with bulky cervical tumor. BJOG 2022; 130:231-237. [DOI: 10.1111/1471-0528.17340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 09/29/2022] [Accepted: 10/07/2022] [Indexed: 11/06/2022]
Affiliation(s)
- S. Lu
- Department of radiation oncology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine University of Electronic Science and Technology of China Chengdu China
- Radiation Oncology Key Laboratory of Sichuan Province Chengdu China
| | - S.‐B. Wang
- School of Medicine University of Electronic Science and Technology of China Chengdu China
| | - R. Y. Kim
- Department of Radiation Oncology University of Alabama at Birmingham Birmingham Alabama U.S.A
| | - J.‐Y. Zhang
- School of Medicine University of Electronic Science and Technology of China Chengdu China
| | - X.‐L. Wang
- Department of radiation oncology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine University of Electronic Science and Technology of China Chengdu China
| | - W.‐D. Wang
- Department of radiation oncology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine University of Electronic Science and Technology of China Chengdu China
- Radiation Oncology Key Laboratory of Sichuan Province Chengdu China
| | - Guiquan Zhu
- Department of radiation oncology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine University of Electronic Science and Technology of China Chengdu China
- Radiation Oncology Key Laboratory of Sichuan Province Chengdu China
| | - J. Zhou
- Department of radiation oncology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine University of Electronic Science and Technology of China Chengdu China
| | - Y. Tan
- Department of radiation oncology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine University of Electronic Science and Technology of China Chengdu China
| | - M.‐Y. Tan
- Department of radiation oncology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine University of Electronic Science and Technology of China Chengdu China
| | - M.‐L. Li
- Department of Radiation Oncology University Hospital LMU Munich Munich Germany
| | - G. Yin
- Department of radiation oncology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine University of Electronic Science and Technology of China Chengdu China
- Radiation Oncology Key Laboratory of Sichuan Province Chengdu China
| | - J. Li
- Department of radiation oncology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine University of Electronic Science and Technology of China Chengdu China
- Radiation Oncology Key Laboratory of Sichuan Province Chengdu China
| | - M. Feng
- Department of radiation oncology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine University of Electronic Science and Technology of China Chengdu China
- Radiation Oncology Key Laboratory of Sichuan Province Chengdu China
| | - J.‐Y. Lang
- Department of radiation oncology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine University of Electronic Science and Technology of China Chengdu China
- Radiation Oncology Key Laboratory of Sichuan Province Chengdu China
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Chen H, Cai T, Ruan X, Jiao C, Xia J, Wei X, Wang Y, Gong P, Li H, Atkin R, Yin G, Zhou X, Nishimura K, Rosenkranz A, Greiner C, Wang B, Yu J, Jiang N. Outstanding Bio-Tribological Performance Induced by the Synergistic Effect of 2D Diamond Nanosheet Coating and Silk Fibroin. ACS Appl Mater Interfaces 2022; 14:48091-48105. [PMID: 36222465 DOI: 10.1021/acsami.2c12552] [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] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Due to their excellent biocompatibility, outstanding mechanical properties, high strength-to-weight ratio, and good corrosion resistance, titanium (Ti) alloys are extensively used as implant materials in artificial joints. However, Ti alloys suffer from poor wear resistance, resulting in a considerably short lifetime. In this study, we demonstrate that the chemical self-assembly of novel two-dimensional (2D) diamond nanosheet coatings on Ti alloys combined with natural silk fibroin used as a novel lubricating fluid synergistically results in excellent friction and wear performance. Linear-reciprocating sliding tests verify that the coefficient of friction and the wear rate of the diamond nanosheet coating under silk fibroin lubrication are reduced by 54 and 98%, respectively, compared to those of the uncoated Ti alloy under water lubrication. The lubricating mechanism of the newly designed system was revealed by a detailed analysis of the involved microstructural and chemical changes. The outstanding tribological behavior was attributed to the establishment of artificial joint lubrication induced by the cross binding between the diamond nanosheets and silk fibroin. Additionally, excellent biocompatibility of the lubricating system was verified by cell viability, which altogether paves the way for the application of diamond coatings in artificial Ti joint implants.
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Affiliation(s)
- Huanyi Chen
- Department of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou510225, China
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo315201, China
| | - Tao Cai
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo315201, China
| | - Xinxin Ruan
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo315201, China
| | - Chengcheng Jiao
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo315201, China
| | - Juncheng Xia
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo315201, China
| | - Xianzhe Wei
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo315201, China
| | - Yandong Wang
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo315201, China
| | - Ping Gong
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo315201, China
| | - Hua Li
- School of Molecular Sciences, The University of Western Australia, Perth, Western Australia6009, Australia
| | - Rob Atkin
- School of Molecular Sciences, The University of Western Australia, Perth, Western Australia6009, Australia
| | - Guoqiang Yin
- Department of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou510225, China
| | - Xiangyang Zhou
- Department of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou510225, China
| | - Kazuhito Nishimura
- Advanced Nano-processing Engineering Laboratory, Mechanical Engineering, Kogakuin University, Tokyo192-0015, Japan
| | - Andreas Rosenkranz
- Department of Chemical Engineering, Biotechnology and Materials (FCFM), Universidad de Chile, Santiago8330015, Chile
| | - Christian Greiner
- Institute for Applied Materials (IAM), Karlsruhe Institute of Technology (KIT), Kaiserstraße 12, 76131Karlsruhe, Germany
- IAM-ZM MicroTribology Center (μTC), Straße am Forum 5, 76131Karlsruhe, Germany
| | - Bo Wang
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo315201, China
| | - Jinhong Yu
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo315201, China
| | - Nan Jiang
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo315201, China
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Yin G, Qi X, Li YL, Xu L, Zhou S, Chen XJ, Zhu JF, Su C. [Soluble egg antigen of Schistosoma japonicum induces macrophage apoptosis in mice]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2022; 34:259-268. [PMID: 35896489 DOI: 10.16250/j.32.1374.2022047] [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] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
OBJECTIVE To investigate the dynamic changes of macrophage numbers and apoptosis during Schistosoma japonicum infection, and to investigate the possible mechanisms of macrophage apoptosis induced by S. japonicum soluble egg antigen (SEA). METHODS C57BL/6 mice at ages of 6~8 weeks were randomly divided into 4 groups, including three experimental groups and a normal control group. Each mouse in the experimental groups was infected with (12 ± 1) cercariae of S. japonicum via the abdominal skin, and all mice in an experimental group were sacrificed 3, 5, 8 weeks post-infection, respectively, while mice in the control group were not infected with S. japonicum cercariae and sacrificed on the day of S. japonicum infection in the experimental group. Mouse liver specimens and peritoneal exudation cells were sampled in each group, and the dynamic changes of macrophage numbers and apoptosis were detected. Mouse peritoneal macrophages were isolated, purified and treated with S. japonicum SEA, PBS and ovalbumin (OVA) in vitro, and the macrophage apoptosis was detected using flow cytometry. The mRNA and protein expression of BCL-2 protein family members were determined in macrophages using real-time quantitative PCR (qP-CR) and Western blotting assays, and the activation of caspase 3 was determined using flow cytometry and Western blotting. In addition, macrophages were in vitro treated with S. japonicum SEA in presence of a caspase inhibitor, H2O2 or N-acetyl-L-cysteine, and the apoptosis of macrophages was detected using flow cytometry. RESULTS The total macrophage numbers continued to increase in mouse liver [(0.873 ± 0.106) × 106, (2.737 ± 0.460) × 106 and (3.107 ± 0.367) × 106 cells, respectively; F = 81.900, P < 0.01] and peritoneal specimens [(5.282 ± 1.136) × 105, (7.500 ± 1.200) × 105 and (12.800 ± 0.800) × 105 cells, respectively; F = 55.720, P < 0.01] 3, 5 and 8 weeks post-infection with S. japonicum, and the numbers of apoptotic macrophages also continued to increase in mouse liver [(0.092 ± 0.018) × 106, (0.186 ± 0.025) × 106 and (0.173 ± 0.0270) × 106 cells; F = 57.780, P < 0.01] and peritoneal specimens [(0.335 ± 0.022) × 105, (0.771 ± 0.099) × 105 and (1.094 ± 0.051) × 105 cells; F = 49.460, P < 0.01] 3, 5 and 8 weeks post-infection with S. japonicum. The apoptotic rate of SEA-treated macrophages [(24.330 ± 0.784)%] was significantly higher than that of PBS-[(18.500 ± 1.077)%] and OVA-treated macrophages [(18.900 ± 1.350)%] (both P values < 0.01). There were no significant differences in the mRNA or protein expression of Bcl-2 [Bcl - 2 mRNA expression: (1.662 ± 0.943) vs. (1.000 ± 0.000), t = 1.215, P > 0.05; BCL protein expression: (0.068 ± 0.004) vs. (0.070 ± 0.005), t = 0.699, P > 0.05], Bax [Bax mRNA expression: (0.711 ± 0.200) vs. (1.000 ± 0.000), t = 2.507, P > 0.05; BAX protein expression: (0.089 ± 0.005) vs. (0.097 ± 0.003), t = 2.232, P > 0.05] and Bak [Bak mRNA expression: (1.255 ± 0.049) vs. (1.00 ± 0.00), t = 0.897, P > 0.05; BAK protein expression: (0.439 ± 0.048) vs. (0.571 ± 0.091), t = 2.231, P > 0.05] between in SEA- and PBS-treated macrophages. S. japonicum SEA induced macrophage apoptosis in the presence of a caspase inhibitor (F = 0.411, P > 0.05); however, SEA failed to induce macrophage apoptosis in the presence of H2O2 or NAC (F = 11.880 and 9.897, both P values < 0.05). CONCLUSIONS S. japonicum SEA may induce macrophage apoptosis through promoting reactive oxygen species expression during S. japonicum infections in mice.
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Affiliation(s)
- G Yin
- Department of Pathogenic Biology, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - X Qi
- Department of Pathogenic Biology, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Y L Li
- Department of Pathogenic Biology, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - L Xu
- Department of Pathogenic Biology, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - S Zhou
- Department of Pathogenic Biology, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - X J Chen
- Department of Pathogenic Biology, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - J F Zhu
- Department of Pathogenic Biology, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - C Su
- Department of Pathogenic Biology, Nanjing Medical University, Nanjing, Jiangsu 211166, China
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Wei X, Min Y, Feng Y, He D, Zeng X, Huang Y, Fan S, Chen H, Chen J, Xiang K, Luo H, Yin G, Hu D. Development and validation of an individualized nomogram for predicting the high-volume (> 5) central lymph node metastasis in papillary thyroid microcarcinoma. J Endocrinol Invest 2022; 45:507-515. [PMID: 34491546 DOI: 10.1007/s40618-021-01675-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Accepted: 09/03/2021] [Indexed: 01/30/2023]
Abstract
PURPOSE Papillary thyroid microcarcinoma (PTMC) frequently presents a favorable clinical outcome, while aggressive invasiveness can also be found in some of this population. Identifying the risk clinical factors of high-volume (> 5) central lymph node metastasis (CLNM) in PTMC patients could help oncologists make a better-individualized clinical decision. METHODS We retrospectively reviewed the clinical characteristics of adult patients with PTC in the Surveillance, Epidemiology, and End Results (SEER) database between Jan 2010 and Dec 2015 and in one medical center affiliated to Chongqing Medical University between Jan 2018 and Oct 2020. Univariate and multivariate logistic regression analyses were used to determine the risk factors for high volume of CLNM in PTMC patients. RESULTS The male gender (OR = 2.02, 95% CI 1.46-2.81), larger tumor size (> 5 mm, OR = 1.64, 95% CI 1.13-2.38), multifocality (OR = 1.87, 95% CI 1.40-2.51), and extrathyroidal invasion (OR = 3.67; 95% CI 2.64-5.10) were independent risk factors in promoting high-volume of CLNM in PTMC patients. By contrast, elderly age (≥ 55 years) at diagnosis (OR = 0.57, 95% CI 0.40-0.81) and PTMC-follicular variate (OR = 0.60, 95% CI 0.42-0.87) were determined as the protective factors. Based on these indicators, a nomogram was further constructed with a good concordance index (C-index) of 0.702, supported by an external validating cohort with a promising C-index of 0.811. CONCLUSION A nomogram was successfully established and validated with six clinical indicators. This model could help surgeons to make a better-individualized clinical decision on the management of PTMC patients, especially in terms of whether prophylactic central lymph node dissection and postoperative radiotherapy should be warranted.
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Affiliation(s)
- X Wei
- Department of Internal Cardiology, The Second Affiliated Hospital, Chongqing Medical University, No. 74, Linjiang Rd, Yuzhong Dist, Chongqing, 404100, People's Republic of China
| | - Y Min
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital of Chongqing Medical University, No. 74, Linjiang Rd, Yuzhong Dist, Chongqing, 404100, People's Republic of China
| | - Y Feng
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital of Chongqing Medical University, No. 74, Linjiang Rd, Yuzhong Dist, Chongqing, 404100, People's Republic of China
| | - D He
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital of Chongqing Medical University, No. 74, Linjiang Rd, Yuzhong Dist, Chongqing, 404100, People's Republic of China
| | - X Zeng
- Department of Oncology, The Second Affiliated Hospital, Chongqing Medical University, No. 74, Linjiang Rd, Yuzhong Dist, Chongqing, 404100, People's Republic of China
| | - Y Huang
- Department of Pathology, The Second Affiliated Hospital of Chongqing Medical University, No. 74, Linjiang Rd, Yuzhong Dist, Chongqing, 404100, People's Republic of China
| | - S Fan
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital of Chongqing Medical University, No. 74, Linjiang Rd, Yuzhong Dist, Chongqing, 404100, People's Republic of China
| | - H Chen
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital of Chongqing Medical University, No. 74, Linjiang Rd, Yuzhong Dist, Chongqing, 404100, People's Republic of China
| | - J Chen
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital of Chongqing Medical University, No. 74, Linjiang Rd, Yuzhong Dist, Chongqing, 404100, People's Republic of China
| | - K Xiang
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital of Chongqing Medical University, No. 74, Linjiang Rd, Yuzhong Dist, Chongqing, 404100, People's Republic of China
| | - H Luo
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital of Chongqing Medical University, No. 74, Linjiang Rd, Yuzhong Dist, Chongqing, 404100, People's Republic of China
| | - G Yin
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital of Chongqing Medical University, No. 74, Linjiang Rd, Yuzhong Dist, Chongqing, 404100, People's Republic of China.
| | - D Hu
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital of Chongqing Medical University, No. 74, Linjiang Rd, Yuzhong Dist, Chongqing, 404100, People's Republic of China.
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Chen W, Gao Z, He M, Dou Y, Yin G, Ding J. Vapor-phase glutaraldehyde crosslinked waste protein-based nanofiber nonwovens as an environmentally friendly wound dressing. REACT FUNCT POLYM 2022. [DOI: 10.1016/j.reactfunctpolym.2022.105203] [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: 10/19/2022]
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Feng Y, Min Y, Chen H, Xiang K, Wang X, Yin G. Construction and validation of a nomogram for predicting cervical lymph node metastasis in classic papillary thyroid carcinoma. J Endocrinol Invest 2021; 44:2203-2211. [PMID: 33586026 DOI: 10.1007/s40618-021-01524-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 01/29/2021] [Indexed: 02/06/2023]
Abstract
PURPOSE Patients with papillary thyroid carcinoma (PTC) frequently present a relatively poor prognosis when they coexist with cervical lymph node metastasis (LNM). Moreover, it remains controversial whether prophylactic lymph node dissection (LND) should be performed for patients without clinically lymph node metastasis. Thus, we hereby develop a nomogram for predicting the cervical LNM (including central and lateral LNM) in patients with PTC. METHODS We retrospectively reviewed the clinical characteristics of adult patients with PTC in the surveillance, epidemiology, and end results (SEER) database between 2010 and 2015 and in our Department of Breast and Thyroid Surgery in the Second Affiliated Hospital of Chongqing Medical University between 2019 and 2020. RESULT A total of 21,972 patients in the SEER database and 747 patients in our department who met the inclusion criteria were enrolled in this study. Ultimately, six clinical features including age, gender, race, extrathyroidal invasion, multifocality, and tumor size were identified to be associated with cervical LNM in patients with PTC, which were screened to develop a nomogram. This model had satisfied discrimination with a concordance index (C-index) of 0.733, supported by both internal and external validation with a C-index of 0.731 and 0.716, respectively. A decision curve analysis was subsequently made to evaluate the feasibility of this nomogram for predicting cervical LNM. Besides, a positive correlation between nomogram score and the average number of lymph node metastases was observed in all groups. CONCLUSION This visualized multipopulational-based nomogram model was successfully established. We determined that various clinical characteristics were significantly associated with cervical LNM, which would be better helping clinicians make individualized clinical decisions for PTC patients.
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Affiliation(s)
- Y Feng
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital of Chongqing Medical University, No.74, Linjiang Rd, Yuzhong Dist, Chongqing, 404100, People's Republic of China
| | - Y Min
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital of Chongqing Medical University, No.74, Linjiang Rd, Yuzhong Dist, Chongqing, 404100, People's Republic of China
| | - H Chen
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital of Chongqing Medical University, No.74, Linjiang Rd, Yuzhong Dist, Chongqing, 404100, People's Republic of China
| | - K Xiang
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital of Chongqing Medical University, No.74, Linjiang Rd, Yuzhong Dist, Chongqing, 404100, People's Republic of China
| | - X Wang
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital of Chongqing Medical University, No.74, Linjiang Rd, Yuzhong Dist, Chongqing, 404100, People's Republic of China
| | - G Yin
- Department of Breast and Thyroid Surgery, The Second Affiliated Hospital of Chongqing Medical University, No.74, Linjiang Rd, Yuzhong Dist, Chongqing, 404100, People's Republic of China.
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Zhu G, Li Z, Shang J, Ding J, Li Y, Yin G. Flow mark defects reduction of
injection‐molded
polypropylene by dynamically vulcanized polyolefin elastomer. POLYM ENG SCI 2021. [DOI: 10.1002/pen.25756] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Guodian Zhu
- School of Chemistry and Chemical Engineering Zhongkai University of Agriculture and Engineering Guangzhou China
- Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education Qilu University of Technology (Shandong Academy of Sciences) Jinan China
| | - Zhuoxi Li
- School of Pharmacy Xinhua College of Sun Yat‐Sen University Guangzhou China
| | - Jingqi Shang
- School of Chemistry and Chemical Engineering Zhongkai University of Agriculture and Engineering Guangzhou China
| | - Jiao Ding
- School of Chemistry and Chemical Engineering Zhongkai University of Agriculture and Engineering Guangzhou China
| | - Yuanyuan Li
- School of Pharmacy Henan University of Chinese Medicine Zhengzhou China
| | - Guoqiang Yin
- School of Chemistry and Chemical Engineering Zhongkai University of Agriculture and Engineering Guangzhou China
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Du F, Xu J, Li X, Li Z, Li X, Zuo X, Bi L, Zhao D, Zhang M, Wu H, He D, Wu Z, Li Z, Li Y, Xu J, Tao Y, Zhao J, Chen J, Zhang H, Li J, Jiang L, Xiao Z, Chen Z, Yin G, Gong L, Wang G, Dong L, Xiao W, Bao C. POS0664 A MULTICENTER RANDOMIZED STUDY IN RHEUMATOID ARTHRITIS TO COMPARE IGURATIMOD, METHOTREXATE, OR COMBINATION: 52 WEEK EFFICACY AND SAFETY RESULTS OF THE SMILE TRIAL. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.1486] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Iguratimod (IGU) has demonstrated efficacy and safety for active rheumatoid arthritis (RA) patients in double-blind clinical trials in China and Japan as a new disease-modifying anti-rheumatic drug (DMARD). There are no studies evaluating the radiographic progression of structural joint damage of IGU for the treatment of RA using the mTSS as the primary endpoint.Objectives:Our study was to evaluate the efficacy and safety of IGU monotherapy and IGU combined methotrexate (MTX) compared with MTX monotherapy, including the inhibitory effects of joint destruction.Methods:This randomized, double-blind, parallel-controlled, multicenter study in patients with active RA who have not previously used MTX and biological DMARDs (bDMARDs) (ClinicalTrials.gov Identifier NCT01548001) was carried out in China. Patients were randomized 1:1:1 to receive IGU 25 mg twice a day (bid), MTX 10mg once a week(qw) for the first 4 weeks and 15 mg once a week(qw) for week 5 to 52, or IGU combined MTX (IGU+MTX) for 52 weeks. The primary endpoints were to assess and compare American College of Rheumatology 20% (ACR20) response and the change of modified total Sharp scoring (mTSS) score over 52 weeks (Intention-to-treat, ITT analysis). The non-inferiority test was used to analyze the difference of ACR20 response at 52 weeks between the IGU monotherapy and the MTX monotherapy arms, and the non-inferiority limit value was 10%. The difference test was used for the comparison between the IGU+MTX and MTX monotherapy arms. Two-way ANOVA was used to analyze the difference of the changes of mTSS score of each arm compared with baseline value (0 week).Results:A total of 895 patients were randomized to IGU 25mg bid (n =297), MTX 10-15mg qw(n=293), and IGU+MTX (n=305). Baseline characteristics were comparable between the arms (Table 1).Table 1.Demographic and Other Baseline Characteristics (SAS)IGUMTXIGU+MTXNumber of Subjects297293305Age, mean (SD) years46.87(10.67)47.63(10.70)48.37(10.69)Female/male, %77.44/22.5679.18/20.8278.03/21.97Duration of RA, mean(SD) years11.67±7.1611.60±7.9811.67±7.27CRP, mean(SD) mg/L222.32±35.4720.67±26.6119.74±31.38Tender joint count, mean (SD)14.59±9.1614.83±9.3014.93±9.88Swollen joint count, mean (SD)9.81±6.639.73±7.209.51±6.22DAS28-CRP, mean (SD)5.084±0.9945.102±0.9795.103±0.956HAQ score, mean (SD)15.82±11.2515.24±10.9316.06±10.92SAS: Safety Analysis Set; CRP: C-reactive protein;DAS28: disease activity score; HAQ: Health Assessment QuestionnaireThe study met its primary endpoints. More concretely, IGU monotherapy and IGU+MTX were found to be superior to MTX at week 52 with a higher ACR20 response of 77.44%(230/297, P=0.0019) and 77.05%(235/305, P=0.0028) versus 65.87%(193/293) (fig 1). As shown in fig 1, the structural remission (ΔmTSS≤0.5) was statistically significant for IGU monotherapy (57.4%, P=0.0308) but not for IGU+MTX arm (55%) versus MTX monotherapy (47.8%).Overall incidence of the adverse events (AEs) leading to study discontinuation were reported in 13.8% (41/297) in IGU monotherapy arm, 11.26% (33/293) in MTX monotherapy arm and 11.51% (35/305) patients in IGU+MTX arm. The incidence of adverse drug reactions (ADR) leading to study discontinuation were 11.45% (34/297), 8.53% (25/293) and 9.21% (28/305), respectively. There was no one death and no significant difference in all the safety indicators among the three arms.Conclusion:Iguratimod alone or in combination with MTX demonstrated superior efficacy with acceptable safety compared to MTX for patients with active RA who have not previously used MTX bDMARDs.Disclosure of Interests:None declared
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Ding J, Lai R, Chen W, He M, Zhu G, Huang S, Yin G. Environmentally friendly biological nanofibers based on waste feather keratin by electrospinning with citric acid vapor modification. J Appl Polym Sci 2021. [DOI: 10.1002/app.50348] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jiao Ding
- College of Chemistry and Chemical Engineering Zhongkai University of Agriculture and Engineering Guangzhou China
| | - Ruihao Lai
- College of Chemistry and Chemical Engineering Zhongkai University of Agriculture and Engineering Guangzhou China
| | - Wenjie Chen
- College of Chemistry and Chemical Engineering Zhongkai University of Agriculture and Engineering Guangzhou China
| | - Ming He
- College of Chemistry and Chemical Engineering Zhongkai University of Agriculture and Engineering Guangzhou China
| | - Guodian Zhu
- College of Chemistry and Chemical Engineering Zhongkai University of Agriculture and Engineering Guangzhou China
| | - Suqing Huang
- College of Chemistry and Chemical Engineering Zhongkai University of Agriculture and Engineering Guangzhou China
| | - Guoqiang Yin
- College of Chemistry and Chemical Engineering Zhongkai University of Agriculture and Engineering Guangzhou China
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21
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Ding ZY, Dong G, Yin G, Yu LL, Li WX, Ding B. Knockdown of Metadherin suppressed the progression of oral squamous cell carcinoma via PI3K/AKT signaling pathway. J BIOL REG HOMEOS AG 2021; 35:303-309. [PMID: 33565287 DOI: 10.23812/20-580-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Z Y Ding
- Emergency Department, Weifang People's Hospital, Weifang, China
| | - G Dong
- Department of Stomatology, Qingdao Municipal Hospital, Qingdao, China
| | - G Yin
- Department of Clinical Laboratory, Qingdao Central Hospital, Qingdao University, Qingdao, China
| | - L L Yu
- Department of Endoscopic Room, the People's Hospital of Zhangqiu Area, Jinan, China
| | - W X Li
- Department of Clinical Laboratory, Weifang People's Hospital, Weifang, China
| | - B Ding
- Department of Stomatology, Qingdao Central Hospital, Qingdao University, Qingdao, China
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Wei X, Yin G, Zhou X, Li L, Li M, Qin Y, Hou X, Song G, Ali Z, Dai W, Zhao S, Fang X, Lin CT, Jiang N, Yu J. Carbon nano-onions as a nanofiller for enhancing thermal conductivity of epoxy composites. Appl Nanosci 2021. [DOI: 10.1007/s13204-021-01799-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Ji S, Li J, Chang L, Zhao C, Jia R, Tan Z, Liu R, Zhang Y, Li Y, Yin G, Guan Y, Xia X, Yi X, Xu J. Peripheral blood T-cell receptor repertoire as a predictor of clinical outcomes in gastrointestinal cancer patients treated with PD-1 inhibitor. Clin Transl Oncol 2021; 23:1646-1656. [PMID: 33583004 DOI: 10.1007/s12094-021-02562-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 11/16/2020] [Accepted: 01/28/2021] [Indexed: 12/20/2022]
Abstract
BACKGROUND Identifying valid biomarkers for patient selection impressively promotes the success of anti-PD-1 therapy. However, the unmet need for biomarkers in gastrointestinal (GI) cancers remains significant. We aimed to explore the predictive value of the circulating T-cell receptor (TCR) repertoire for clinical outcomes in GI cancers who received anti-PD-1 therapy. METHODS 137 pre- and 79 post-treated peripheral blood samples were included. The TCR repertoire was evaluated by sequencing of complementarity-determining region 3 (CDR3) in the TRB gene. The Shannon index was used to measure the diversity of the TCR repertoire, and Morisita's overlap index was used to determine TCR repertoire similarities between pre- and post-treated samples. RESULTS Among all enrolled patients, 76 received anti-PD-1 monotherapy and 61 received anti-PD-1 combination therapy. In the anti-PD-1 monotherapy cohort, patients with higher baseline TCR diversity exhibited a significantly higher disease control rate (77.8% vs. 47.2%; hazard ratio [HR] 3.92; 95% confidence interval [CI] 1.14-13.48; P = 0.030) and a longer progression-free survival (PFS) (median: 6.47 months vs. 2.77 months; HR 2.10; 95% CI 1.16-3.79; P = 0.014) and overall survival (OS) (median: NA vs. 8.97 months; HR 3.53; 95% CI 1.49-8.38; P = 0.004) than those with lower diversity. Moreover, patients with a higher TCR repertoire similarity still showed a superior PFS (4.43 months vs. 1.84 months; HR 13.98; 95% CI 4.37-44.68; P < 0.001) and OS (13.40 months vs. 6.12 months; HR 2.93; 95% CI 1.22-7.03; P = 0.016) even in the cohort with lower baseline diversity. However, neither biomarker showed predictive value in the anti-PD-1 combination therapy cohort. Interestingly, the combination of TCR diversity and PD-L1 expression can facilitate patient stratification in a pooled cohort. CONCLUSION The circulating TCR repertoire can serve as a predictor of clinical outcomes in anti-PD-1 therapy in GI cancers.
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Affiliation(s)
- S Ji
- Academy of Military Medical Sciences, Academy of Military Sciences, Beijing, China.,Department of Gastrointestinal Oncology, The Fifth Medical Centre, Chinese PLA General Hospital, No. 8 East Street, Fengtai District, Beijing, 100071, China
| | - J Li
- Geneplus-Beijing Institute, Beijing, China
| | - L Chang
- Geneplus-Beijing Institute, Beijing, China
| | - C Zhao
- Department of Gastrointestinal Oncology, The Fifth Medical Centre, Chinese PLA General Hospital, No. 8 East Street, Fengtai District, Beijing, 100071, China
| | - R Jia
- Department of Gastrointestinal Oncology, The Fifth Medical Centre, Chinese PLA General Hospital, No. 8 East Street, Fengtai District, Beijing, 100071, China
| | - Z Tan
- Department of Gastrointestinal Oncology, The Fifth Medical Centre, Chinese PLA General Hospital, No. 8 East Street, Fengtai District, Beijing, 100071, China
| | - R Liu
- Department of Gastrointestinal Oncology, The Fifth Medical Centre, Chinese PLA General Hospital, No. 8 East Street, Fengtai District, Beijing, 100071, China
| | - Y Zhang
- Department of Gastrointestinal Oncology, The Fifth Medical Centre, Chinese PLA General Hospital, No. 8 East Street, Fengtai District, Beijing, 100071, China
| | - Y Li
- Department of Gastrointestinal Oncology, The Fifth Medical Centre, Chinese PLA General Hospital, No. 8 East Street, Fengtai District, Beijing, 100071, China
| | - G Yin
- Geneplus-Beijing Institute, Beijing, China
| | - Y Guan
- Geneplus-Beijing Institute, Beijing, China
| | - X Xia
- Geneplus-Beijing Institute, Beijing, China
| | - X Yi
- Geneplus-Beijing Institute, Beijing, China
| | - J Xu
- Department of Gastrointestinal Oncology, The Fifth Medical Centre, Chinese PLA General Hospital, No. 8 East Street, Fengtai District, Beijing, 100071, China.
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Yang SJ, Li JH, Li L, Chen XY, Yin G, Zhou YP, Xu XQ, Li L, Wang HY, Zhao SH. [Role of cardiac magnetic resonance imaging in myocarditis patients with biopsy negative: a retrospective case series study]. Zhonghua Xin Xue Guan Bing Za Zhi 2021; 49:23-30. [PMID: 33429482 DOI: 10.3760/cma.j.cn112148-20200908-00718] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the cardiac magnetic resonance (CMR) imaging feature of clinically diagnosed myocarditis patients with negative endocardial biopsy (EMB) results, and to further demonstrate the diagnostic value of CMR in these patients. Methods: This was a retrospective case series study. Fourteen patients, who were clinically diagnosed as myocarditis according to 2013 European Society of Cardiology (ESC) clinical diagnostic criteria for myocarditis, but with negative EMB results, were enrolled. All patients underwent CMR examinations. The morphological, functional and histological changes of the heart were assessed based on black blood sequence, cine sequence, T2W-STIR sequence and contrast agent late gadolinium enhancement,(LGE). Results: There were 10 males and 4 females in this cohort, the age was (25.6±13.2) years. The interval between symptom onset and CMR was 21 (13, 60) days, and the interval between symptom onset and EMB was 19 (9, 40) days. There were 13 patients with abnormal CMR results including myocardial oedema, fibrosis, decreased ejection fraction, pericardial effusion or increased cardiac chamber dimension. Nine out of 14 patients had CMR morphological and/or functional abnormalities, including 1 case of left atrium enlargement, 1 case of left ventricle enlargement, 3 cases of right ventricle enlargement, 4 cases of increased left ventricular end diastolic volume index. Left ventricular ejection fraction was<50% in three cases, right ventricular ejection fraction was<40% in 5 cases, and pericardial effusion depth>3 mm was detected in 3 cases. Of the 14 patients, 11 had histological changes, of which 6 had T2 ratio≥2. Among the 10 patients (10/14) with positive LGE, the most common patterns were subepicardial LGE of the lateral wall and/or midwall LGE of the septum (n=9); 2 cases showed extensively subendocardial LGE of the left ventricular wall. No LGE involved in the right ventricular wall in the whole cohort. Conclusion: CMR plays a complementary role in the diagnosis of myocarditis in clinically diagnosed myocarditis patients with negative EMB findings.
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Affiliation(s)
- S J Yang
- Department of Cardiac MR, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China Department of Pathology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China Department of Cardiac MR, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China
| | - J H Li
- Department of Cardiac MR, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China Department of Pathology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China Department of Cardiac MR, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China
| | - L Li
- Department of Cardiac MR, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China Department of Pathology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China Department of Cardiac MR, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China
| | - X Y Chen
- Department of Cardiac MR, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China Department of Pathology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China Department of Cardiac MR, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China
| | - G Yin
- Department of Cardiac MR, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China Department of Pathology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China Department of Cardiac MR, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China
| | - Y P Zhou
- Department of Cardiac MR, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China Department of Pathology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China Department of Cardiac MR, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China
| | - X Q Xu
- Department of Cardiac MR, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China Department of Pathology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China Department of Cardiac MR, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China
| | - L Li
- Department of Cardiac MR, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China Department of Pathology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China Department of Cardiac MR, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China
| | - H Y Wang
- Department of Cardiac MR, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China Department of Pathology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China Department of Cardiac MR, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China
| | - S H Zhao
- Department of Cardiac MR, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100730, China Department of Pathology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China Department of Cardiac MR, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China
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Zhang WJ, Guo SL, Yin G, Wang GS, Wang ZR, Dong J, Li QR. Association between TP53 polymorphisms and chronic lymphocytic leukemia. Eur Rev Med Pharmacol Sci 2020; 24:12073-12079. [PMID: 33336725 DOI: 10.26355/eurrev_202012_23996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The aim of this study was to explore the association between TP53 gene polymorphisms (rs8068934 A>G and rs218698 C>T) and chronic lymphocytic leukemia (CLL). PATIENTS AND METHODS CLL patients who received treatment in our hospital were enrolled in this study as the disease group. Meanwhile, healthy subjects were taken as the control group. Peripheral blood samples were collected to detect TP53 gene polymorphisms at rs8068934 and rs218698, and the haplotype analysis was performed. The expression of TP53 was detected via reverse transcription-quantitative polymerase chain reaction (RT-qPCR). Furthermore, the survival conditions were analyzed. RESULTS The allele distribution at rs8068934 (p=0.046) and rs218698 (p=0.028) of TP53 gene was different between control group and disease group. A allele frequency at rs8068934 and T allele frequency at rs218698 were significantly higher in disease group (p<0.05). The genotype distribution at rs218698 of TP53 gene in disease group was also different from that in control group (p=0.038). The results demonstrated that CC genotype frequency in disease group was significantly lower than that in control group (p<0.05). Besides, the distribution of dominant model at rs8068934 (p=0.042) and recessive model at rs218698 (p=0.033) in disease group exhibited remarkable differences from control group, in which AA+AG frequency (dominant model) at rs8068934 and CC+CT frequency (recessive model) at rs218698 in disease group were significantly higher. Meanwhile, the distribution of AT (p=0.029) and GC (p=0.007) haplotypes at rs8068934 and rs218698 in disease group was evidently different from that in control group. The results indicated that disease group showed significantly higher frequency of AT haplotype and lower frequency of GC haplotype (p<0.05). Moreover, TP53 gene polymorphisms at rs8068934 were significantly associated with the levels of white blood cells (WBC) (p=0.000) and platelets (PLT) (p=0.035). Patients with GG genotype had significantly higher level of WBC, while those with AG genotype showed significantly lower level of PLT (p<0.05). TP53 gene polymorphisms at rs218698 were associated with the level of red blood cells (RBC) (p=0.000). Patients with CT genotype had a remarkably lower level of RBC (p<0.05). There were significant correlations of TP53 gene polymorphisms at rs8068934 (p=0.000) and rs218698 (p=0.000) with the expression of TP53. The expression of TP53 was lower in people with AA genotype at rs8068934 but higher in people with TT genotype at rs218698 (p<0.05). Furthermore, TP53 gene polymorphisms at rs8068934 (p=0.000) and rs218698 (p=0.000) were markedly associated with patients' survival. CONCLUSIONS TP53 polymorphisms are significantly correlated with the occurrence and progression of CLL.
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Affiliation(s)
- W-J Zhang
- Department of Hematopathology, Yantaishan Hospital, Yantai, China.
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Boldrini L, Lenkowicz J, Orlandini L, Dinapoli N, Yin G, Cusumano D, Casà C, Peng Q, Chiloiro G, Gambacorta M, Lang J, Valentini V. PH-0716: Radiomics pCR predictive model in rectal cancer: an intercontinental validation on real world data. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)00738-6] [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: 10/22/2022]
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Chen H, Huang C, Chen Y, Mohsin M, Li L, Lin X, Huang Z, Yin G. Efficacy of recombinant N- and C-terminal derivative of EmIMP1 against E. maxima infection in chickens. Br Poult Sci 2020; 61:518-522. [PMID: 32347110 DOI: 10.1080/00071668.2020.1759787] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 10/24/2022]
Abstract
1. Immune mapped protein-1 (IMP1) of E. maxima has been identified as a vaccine antigen candidate for E. maxima infection. 2. In the current study, the N- and C-terminal derivative of EmIMP1 were expressed in E. coli and administered to chickens. The antibody response, cell-mediated immune (CMI) response and the protective efficacy of the protein vaccines against E. maxima challenge were evaluated. 3. The results showed that C-terminal derivative of EmIMP1 vaccination could increase weight gain, reduce enteric lesions, and decrease faecal oocysts shedding. Moreover, the C-terminal derivative of EmIMP1 caused reasonable improvement in serum antibodies and the numbers of IFN-γ producing peripheral blood mononuclear cells (PBMC), as compared to the control group. 4. This study demonstrated that the C-terminal derivative of EmIMP1 could be used as a potent immunogenic candidate in the development of subunit vaccines against E. maxima infection.
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Affiliation(s)
- H Chen
- Engineering Laboratory of Animal Pharmaceuticals and College of Animal Science (College of Bee Science), Fujian Agriculture and Forestry University , Fuzhou, Fujian Province, China
| | - C Huang
- Engineering Laboratory of Animal Pharmaceuticals and College of Animal Science (College of Bee Science), Fujian Agriculture and Forestry University , Fuzhou, Fujian Province, China
| | - Y Chen
- Engineering Laboratory of Animal Pharmaceuticals and College of Animal Science (College of Bee Science), Fujian Agriculture and Forestry University , Fuzhou, Fujian Province, China
| | - M Mohsin
- College of Life Sciences, Fujian Agriculture and Forestry University , Fuzhou, Fujian Province, China
| | - L Li
- Engineering Laboratory of Animal Pharmaceuticals and College of Animal Science (College of Bee Science), Fujian Agriculture and Forestry University , Fuzhou, Fujian Province, China
| | - X Lin
- Engineering Laboratory of Animal Pharmaceuticals and College of Animal Science (College of Bee Science), Fujian Agriculture and Forestry University , Fuzhou, Fujian Province, China
| | - Z Huang
- Engineering Laboratory of Animal Pharmaceuticals and College of Animal Science (College of Bee Science), Fujian Agriculture and Forestry University , Fuzhou, Fujian Province, China
| | - G Yin
- Engineering Laboratory of Animal Pharmaceuticals and College of Animal Science (College of Bee Science), Fujian Agriculture and Forestry University , Fuzhou, Fujian Province, China
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Affiliation(s)
- Guodian Zhu
- School of Chemistry and Chemical EngineeringZhongkai University of Agriculture and Engineering Guangzhou China
| | - Di Xiong
- School of Chemical EngineeringXiangtan University Xiangtan China
| | - Jiao Ding
- School of Chemistry and Chemical EngineeringZhongkai University of Agriculture and Engineering Guangzhou China
| | - Tao Ruan
- School of Chemistry and Chemical EngineeringSouth China University of Technology Guangzhou China
| | - Guoqiang Yin
- School of Chemistry and Chemical EngineeringZhongkai University of Agriculture and Engineering Guangzhou China
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Wu S, Chen X, Li T, Cui Y, Yi M, Ge J, Yin G, Li X, He M. Improving the Performance of Feather Keratin/Polyvinyl Alcohol/Tris(hydroxymethyl)Aminomethane Nanocomposite Films by Incorporating Graphene Oxide or Graphene. Nanomaterials (Basel) 2020; 10:nano10020327. [PMID: 32075086 PMCID: PMC7075157 DOI: 10.3390/nano10020327] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 02/11/2020] [Accepted: 02/11/2020] [Indexed: 11/16/2022]
Abstract
In this study, feather keratin/polyvinyl alcohol/tris(hydroxymethyl)aminomethane (FK/PVA/Tris) bionanocomposite films containing graphene oxide (GO) (0.5, 1, 2, and 3 wt%) or graphene (0.5, 1, 2, and 3 wt%) were prepared using a solvent casting method. The scanning electron microscopy results indicated that the dispersion of GO throughout the film matrix was better than that of graphene. The successful formation of new hydrogen bonds between the film matrix and GO was confirmed through the use of Fourier-transform infrared spectroscopy. The tensile strength, elastic modulus, and initial degradation temperature of the films increased, whereas the total soluble mass, water vapor permeability, oxygen permeability, and light transmittance decreased following GO or graphene incorporation. In summary, nanoblending is an effective method to promote the application of FK/PVA/Tris-based blend films in the packaging field.
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Affiliation(s)
- Shufang Wu
- Green Chemical Engineering Institute, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (S.W.); (M.Y.); (J.G.); (G.Y.); (X.L.); (M.H.)
| | - Xunjun Chen
- Green Chemical Engineering Institute, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (S.W.); (M.Y.); (J.G.); (G.Y.); (X.L.); (M.H.)
- Correspondence: ; Tel.: +86-020-3417-2870
| | - Tiehu Li
- Shaanxi Engineering Laboratory of Graphene New Carbon Materials and Applications, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, China;
| | - Yingde Cui
- Guangzhou Vocational College of Science and Technology, Guangzhou 510550, China;
| | - Minghao Yi
- Green Chemical Engineering Institute, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (S.W.); (M.Y.); (J.G.); (G.Y.); (X.L.); (M.H.)
| | - Jianfang Ge
- Green Chemical Engineering Institute, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (S.W.); (M.Y.); (J.G.); (G.Y.); (X.L.); (M.H.)
| | - Guoqiang Yin
- Green Chemical Engineering Institute, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (S.W.); (M.Y.); (J.G.); (G.Y.); (X.L.); (M.H.)
| | - Xinming Li
- Green Chemical Engineering Institute, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (S.W.); (M.Y.); (J.G.); (G.Y.); (X.L.); (M.H.)
| | - Ming He
- Green Chemical Engineering Institute, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (S.W.); (M.Y.); (J.G.); (G.Y.); (X.L.); (M.H.)
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He M, Chen M, Dou Y, Ding J, Yue H, Yin G, Chen X, Cui Y. Electrospun Silver Nanoparticles-Embedded Feather Keratin/Poly(vinyl alcohol)/Poly(ethylene oxide) Antibacterial Composite Nanofibers. Polymers (Basel) 2020; 12:E305. [PMID: 32028586 PMCID: PMC7077473 DOI: 10.3390/polym12020305] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 01/13/2020] [Accepted: 01/16/2020] [Indexed: 12/25/2022] Open
Abstract
Feathers, which contain >90% keratin, are valuable natural protein resources. The aim of this study is to prepare antimicrobial feather keratin (FK)-based nanofibers by incorporating silver nanoparticles (AgNPs). A series of AgNPs-embedded feather keratin/poly(vinyl alcohol)/poly(ethylene oxide) (FK/PVA/PEO) composite nanofibers with varying amounts of AgNPs content were fabricated by electrospinning. Their morphology, crystallinity, thermal stability, tensile property, and antibacterial activity were systematically investigated. The average diameters of composite nanofibers gradually decreased with increases in the amount of AgNPs. The crystallinity, thermal stability, and antibacterial activity of FK/PVA/PEO nanofibers were enhanced by embedding AgNPs. When embedded with 1.2% AgNPs, both the tensile strength and elongation-at-break reached the highest level. This work has the potential to expand the application of FK-based nanofibers in the biomaterial field.
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Affiliation(s)
- Ming He
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (M.C.); (J.D.); (X.C.)
| | - Man Chen
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (M.C.); (J.D.); (X.C.)
| | - Yao Dou
- Innovation and Practice Base for Postdoctors, Chengdu Polytechnic, Chengdu 610041, China;
| | - Jiao Ding
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (M.C.); (J.D.); (X.C.)
| | - Hangbo Yue
- School of Chemical Engineering & Light Industry, Guangdong University of Technology, Guangzhou 510006, China;
| | - Guoqiang Yin
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (M.C.); (J.D.); (X.C.)
| | - Xunjun Chen
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (M.C.); (J.D.); (X.C.)
| | - Yingde Cui
- Guangzhou Vocational and Technical University of Science and Technology, Guangzhou 510550, China;
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Dou Y, Zhang L, Zhang B, He M, Shi W, Yang S, Cui Y, Yin G. Preparation and Characterization of Edible Dialdehyde Carboxymethyl Cellulose Crosslinked Feather Keratin Films for Food Packaging. Polymers (Basel) 2020; 12:polym12010158. [PMID: 31936219 PMCID: PMC7022252 DOI: 10.3390/polym12010158] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 01/02/2020] [Accepted: 01/06/2020] [Indexed: 01/10/2023] Open
Abstract
The development of edible films based on the natural biopolymer feather keratin (FK) from poultry feathers is of great interest to food packaging. Edible dialdehyde carboxymethyl cellulose (DCMC) crosslinked FK films plasticized with glycerol were prepared by a casting method. The effect of DCMC crosslinking on the microstructure, light transmission, aggregate structure, tensile properties, water resistance and water vapor barrier were investigated. The results indicated the formation of both covalent and hydrogen bonding between FK and DCMC to form amorphous FK/DCMC films with good UV-barrier properties and transmittance. However, with increasing DCMC content, a decrease in tensile strength of the FK films indicated that plasticization, induced by hydrophilic properties of the DCMC, partly offset the crosslinking effect. Reduction in the moisture content, solubility and water vapor permeability indicated that DCMC crosslinking slightly reduced the moisture sensitivity of the FK films. Thus, DCMC crosslinking increased the potential viability of the FK films for food packaging applications, offering a value-added product.
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Affiliation(s)
- Yao Dou
- Innovation and Practice Base for Postdoctors, Chengdu Polytechnic, Chengdu 610041, Sichuan, China; (W.S.); (S.Y.)
- College of Materials Science and Engineering, Sichuan University, Chengdu 610041, Sichuan, China
- Correspondence: (Y.D.); (G.Y.)
| | - Liguang Zhang
- College of Pharmacy, Suzhou Vocational Health College, Suzhou 215009, Jiangsu, China;
| | - Buning Zhang
- Green Chemical Engineering Institute, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, Guangdong, China; (B.Z.); (M.H.)
| | - Ming He
- Green Chemical Engineering Institute, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, Guangdong, China; (B.Z.); (M.H.)
| | - Weimei Shi
- Innovation and Practice Base for Postdoctors, Chengdu Polytechnic, Chengdu 610041, Sichuan, China; (W.S.); (S.Y.)
| | - Shiqing Yang
- Innovation and Practice Base for Postdoctors, Chengdu Polytechnic, Chengdu 610041, Sichuan, China; (W.S.); (S.Y.)
| | - Yingde Cui
- Guangzhou Vocational and Technical University of Science and Technology, Guangzhou 510550, Guangdong, China;
| | - Guoqiang Yin
- Green Chemical Engineering Institute, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, Guangdong, China; (B.Z.); (M.H.)
- Correspondence: (Y.D.); (G.Y.)
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Chen W, Ding J, Yan X, Yan W, He M, Yin G. Plasticization of Cottonseed Protein/Polyvinyl Alcohol Blend Films. Polymers (Basel) 2019; 11:polym11122096. [PMID: 31847379 PMCID: PMC6960829 DOI: 10.3390/polym11122096] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 12/10/2019] [Accepted: 12/12/2019] [Indexed: 01/19/2023] Open
Abstract
The use of waste plant protein obtained from underutilized and non-food-producing plants may be a promising strategy in the development of bioactive packaging. A series of blend films were prepared by casting from cottonseed protein (CP) and poly(vinyl alcohol) (PVA) and modified with different plasticizers. The morphology, structure, and crystallinity of each of the blend films were characterized by scanning electron microscopy, Fourier transform infrared spectroscopy, and X-ray diffraction. CP and PVA were found to be compatible in the appropriate ratios, and the CP/PVA blend films were partially crystalline. We compared the effects that four plasticizers, i.e., glycerol, triethanolamine (TEA), ethylene glycol, and polyethylene glycol, had on the performance of the CP/PVA blend films. Plasticizers altered the degree of interaction between CP and PVA, which changed the secondary structure of the CP but had little effect on the crystallinity of CP/PVA blend films. Among the different plasticizers tested, TEA was the most efficient at improving the elongation at the break, tensile strength, and oxygen barrier properties of the CP/PVA blend films. Such CP/PVA blend films plasticized using TEA can, therefore, be considered emerging and promising plastics for potential applications in food packaging and flower planting applications.
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Affiliation(s)
- Wenjie Chen
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (W.C.); (X.Y.); (W.Y.); (M.H.)
| | - Jiao Ding
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (W.C.); (X.Y.); (W.Y.); (M.H.)
- Correspondence: (J.D.); (G.Y.); Tel.: +86-20-8900-3329 (J.D.); +86-20-8900-2328 (G.Y.)
| | - Xuming Yan
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (W.C.); (X.Y.); (W.Y.); (M.H.)
| | - Wei Yan
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (W.C.); (X.Y.); (W.Y.); (M.H.)
| | - Ming He
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (W.C.); (X.Y.); (W.Y.); (M.H.)
- Guangzhou Key Laboratory for Efficient Utilization of Agricultural Chemicals, Guangzhou 510225, China
| | - Guoqiang Yin
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; (W.C.); (X.Y.); (W.Y.); (M.H.)
- Guangzhou Key Laboratory for Efficient Utilization of Agricultural Chemicals, Guangzhou 510225, China
- Correspondence: (J.D.); (G.Y.); Tel.: +86-20-8900-3329 (J.D.); +86-20-8900-2328 (G.Y.)
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Song Z, Zhang Q, Zhu J, Yin G, Lin L, Liang C. Identification of urinary hsa_circ _0137439 as potential biomarker and tumor regulator of bladder cancer. Neoplasma 2019; 67:137-146. [PMID: 31777254 DOI: 10.4149/neo_2018_181214n970] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 08/14/2019] [Indexed: 11/08/2022]
Abstract
Cell-free circular RNAs (circRNAs) stably and abundantly exist in body fluids. In this study we aimed to investigate the potential of urinary cell-free circRNAs as a novel class of noninvasive disease biomarkers for diagnosis of bladder cancer. Differentially expressed circRNAs from 10 normal and 10 bladder cancer urine samples were firstly detected by microarray. Hsa_circ_0137439 was then screened and validated in 30 normal and 116 bladder cancer samples. A receiver operating characteristic (ROC) curve was used to evaluate the diagnostic value of hsa_circ_0137439. The Kaplan-Meier method was used to evaluate the significance of hsa_circ_0137439 in the prognosis of bladder cancer. We found that hsa_circ_0137439 was significantly upregulated in bladder cancer samples. Moreover, increased expression of hsa_circ_0137439 was correlated with higher tumor stage, higher tumor grade, higher lymph node status, and history of muscle-invasive bladder cancer (MIBC). Also, urinary cell-free hsa_circ_0137439 could not only differentiate bladder cancer from normal controls but also distinguish MIBC from non-muscle-invasive bladder cancer (NMIBC). Additionally, hsa_circ_0137439 in urine supernatant could serve as an independent prognostic predicator of recurrence-free survival and overall survival for patients with bladder cancer. Cell assays showed that hsa_circ_0137439 knockdown contributed to the inhibition of cell proliferation and migration via hsa_circ_0137439/miR-142-5p/ MTDH axis. In conclusion, urinary cell-free hsa_circ_0137439 could be a promising biomarker for tumor diagnosis and prognostic assessment of bladder cancer patients.
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Affiliation(s)
- Z Song
- Department of Urology, First Affiliated Hospital of Anhui Medical University, Anhui Medical University, Hefei, China
| | - Q Zhang
- Department of Urology, Taizhou First People's Hospital, Taizhou, China
| | - J Zhu
- Department of Urology, Taizhou First People's Hospital, Taizhou, China
| | - G Yin
- Department of Urology, Taizhou First People's Hospital, Taizhou, China
| | - L Lin
- Department of Urology, Taizhou First People's Hospital, Taizhou, China
| | - C Liang
- Department of Urology, First Affiliated Hospital of Anhui Medical University, Anhui Medical University, Hefei, China
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Huang J, Zhang B, He M, Huang X, Yin G, Cui Y. Preparation of Anisotropic Aerogels with Pristine Graphene by Heat Flow and Study of Their Effects on Heat Transfer in Paraffin. Nanomaterials (Basel) 2019; 9:E1622. [PMID: 31731702 PMCID: PMC6915352 DOI: 10.3390/nano9111622] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 10/24/2019] [Accepted: 11/06/2019] [Indexed: 12/12/2022]
Abstract
In this study, anisotropic graphene/graphene oxide (GO) aerogels (AGAs) were obtained by freeze-drying after direct participation of pristine graphene in the self-assembly of anisotropic gel by the heat flow method. After vacuum microwave treatment, the physical, chemical and structural characteristics of the AGAs were investigated. The results show that AGAs, in which the internal graphene sheets are parallel to the heat flow direction, are successfully prepared. After microwave treatment, the amount of oxygen and nitrogen reduces significantly and the sp2 domain increases. However, at the same time, many fragments and holes are generated in the graphene sheets. The effects of AGAs on the phase transition of paraffin is studied, and the results show that the melting enthalpy, solidification enthalpy and initial melting temperature of AGA/paraffin composites decreases as the GO content in the AGAs increases, whereas the melting range, solidifying range and subcooling degree increases. The highest axial thermal conductivity of the AGA/paraffin composite is 1.45 W/(mK), and the thermal conductivity enhancement efficiency is 884% (AGA content was 0.53 vol %). Compared with previously investigated, similar AGA/paraffin composites, the aerogels fabricated in this study have the obvious advantages of a simple fabrication process, a low cost and a high thermal conductivity enhancement efficiency. These aerogels possess the potential for application in phase-change energy storage (PES), thermal energy management and other fields.
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Affiliation(s)
- Jinhui Huang
- School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, China
| | - Buning Zhang
- Guangzhou Key Laboratory for Efficient Utilization of Agricultural Chemicals, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China (M.H.); (X.H.)
| | - Ming He
- Guangzhou Key Laboratory for Efficient Utilization of Agricultural Chemicals, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China (M.H.); (X.H.)
| | - Xue Huang
- Guangzhou Key Laboratory for Efficient Utilization of Agricultural Chemicals, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China (M.H.); (X.H.)
| | - Guoqiang Yin
- Guangzhou Key Laboratory for Efficient Utilization of Agricultural Chemicals, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China (M.H.); (X.H.)
| | - Yingde Cui
- School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, China
- Guangzhou Vocational College of Science and Technology, Guangzhou 510550, China
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Zhang XL, Wang YM, Chu K, Wang ZH, Liu YH, Jiang LH, Chen X, Zhou ZY, Yin G. The application of PRP combined with TCP in repairing avascular necrosis of the femoral head after femoral neck fracture in rabbit. Eur Rev Med Pharmacol Sci 2019; 22:903-909. [PMID: 29509236 DOI: 10.26355/eurrev_201802_14368] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE In view of the high occurrence of avascular necrosis of the femoral head (ANFH) after femoral neck fracture and the difficulties in the treatment, our work aimed to explore the effects of platelet-rich plasma (PRP) combined with tri-calcium phosphate (TCP) on the repair of ANFH after femoral neck fracture and to provide reference for clinical treatment. MATERIALS AND METHODS Thirty New Zealand white rabbits were randomly divided into control group, TCP group, and PRP+TCP group. The rabbit ANFH model was established and femoral head tissues were collected. HE staining was used for histological observation. Image analysis and statistical analysis were used to calculate the New Bone Area fraction (NBA %). The levels of bone morphogenetic protein (BMP)-7, transforming growth factor (TGF)-β1, basic fibroblast growth factor (bFGF), interleukin (IL)-6 and tumor necrosis factor (TNF)-a in serum were detected by Enzyme-Linked ImmunoSorbent Assay (ELISA). RESULTS The new bone area of TCP group was significantly lower than that of PRP+TCP group (p<0.05). Compared with the control group, the levels of BMP-7, TGF-β1 and bFGF were significantly increased in both TCP and PRP+TCP groups (p<0.05), and the increase in PRP+TCP group was higher than that in TCP group. TCP and PRP+TCP can both significantly reduce the content of IL-6 and TNF-a (p<0.05); however, higher decrease was found in PRP+TCP group compared with the TCP group at 8 weeks after injection. CONCLUSIONS PRP combined with TCP, which can promote new bone formation and inhibit inflammatory response, showed higher efficiency in repairing ANFH than internal fixation alone.
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Affiliation(s)
- X-L Zhang
- Department of Orthopedics, Yantaishan Hospital, Yantai, Shandong Province, China.
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Zheng YC, Lu MJ, Chen XY, Yang K, Yin G, Wang K, Zhao SH. [Cardiovascular magnetic resonance imaging characteristics and influence factors of aortic insufficiency patients with myocardial fibrosis]. Zhonghua Xin Xue Guan Bing Za Zhi 2019; 47:622-627. [PMID: 31434433 DOI: 10.3760/cma.j.issn.0253-3758.2019.08.006] [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 investigate the cardiovascular magnetic resonance (CMR) imaging characteristics and influence factors of aortic insufficiency (AI) patients with myocardial fibrosis. Method: This retrospective study included 59 AI patients who received CMR and transthoracic echocardiography (TTE) examinations from June 2011 to February 2015. AI patients were divided into 2 groups: bicuspid aortic valve (BAV) group (n=30) and non-BAV group (n=29). Patients were also divided into late gadolinium enhancement (LGE) group (n=27) and non-LGE group (n=32). The baseline clinical characteristics were collected through electronic medical records. Hemodynamic parameters such as grade of AI, cardiac functional parameters and LGE mass fraction (LGE%) were measured by CMR post-processing analysis. Kappa test was used to assess the consistency of AI severity between CMR and TTE, and the multivariate logistic regression analysis was performed to evaluate influence factors of myocardial fibrosis in AI patients. Results: (1) 56 (94.9%) patients were male, and the mean age was (44.2±11.0) years old. There was no significant difference in age and gender, hypertension, hyperlipidemia, alcoholic consumption between BAV and non-BAV group (all P>0.05). There were a higher proportion of smoking history (P=0.008), a lower body mass index (BMI) (P=0.020) in the LGE group than in the non-LGE group. (2) The accuracy of CMR in diagnosis of BAV was 96.7% (29/30) compared to the gold standard. In the BAV group, 20 patients (66.7%) were with fusion of left and right cusp (L-R), 5 patients (16.7%) were with fusion of right and noncoronary cusp (R-N), 5 patients (16.7%) were with fusion of left and noncoronary cusp (L-N); patients with BAV had larger left ventricular end diastolic volume index (LVEDVi), left ventricular end systolic volume index (LVESVi), higher proportion of LGE and lower left ventricular ejection fraction (LVEF) than those in non-BAV group (all P<0.05). There were 19 patients with BAV in the LGE group, the cases of L-R, R-N, L-N were 10 (52.6%), 5 (26.3%), and 4 (21.1%), respectively. In the non-LGE group, patients with BAV of L-R, R-N, L-N were 10 (90.9%), 0, and 1 (9.1%), respectively. Patients with LGE had lower body surface area (BSA), LVEF and larger LVEDVi, LVESVi, left ventricular mass index (LVMi) and higher proportion of BAV compared patients without LGE. In addition, the proportion of moderate and severe AI patients was significantly higher in BAV group than in non-BAV group (P=0.009). (3) The consistency of CMR and TTE in evaluating the severity of AI patients: the agreement between TTE and CMR regarding AI severity was satisfactory (kappa value was 0.624, 95%CI 0.402-0.831, P<0.001). (4) The linear regression analysis demonstrated a negative correlation between LVEF and LGE% in BAV and non-BAV group (P<0.001). The multivariate logistic regression analysis showed that the presence of BAV was an independent risk factor of left ventricucar fibrosis (OR=5.050, 95%CI 1.220-20.908, P=0.025) after adjustment for LVEF, hypertension, LVEDVi and LVMi. Conclusion: Multi-parametric CMR provides a satisfactory noninvasive tool for estimation of myocardial fibrosis and ventricular remodeling in patients with AI, and BAV is an independent risk factor for myocardial fibrosis in patients with AI.
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Affiliation(s)
- Y C Zheng
- Department of Magnetic Resonance Imaging, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China
| | - M J Lu
- Department of Magnetic Resonance Imaging, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China
| | - X Y Chen
- Department of Magnetic Resonance Imaging, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China
| | - K Yang
- Department of Magnetic Resonance Imaging, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China
| | - G Yin
- Department of Magnetic Resonance Imaging, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China
| | - K Wang
- Department of Image Diagnoses, Shanxi Dayi Hospital, Shanxi Academy of Medical Sciences, Taiyuan 030032, China Zheng Yucong's personal profile is in Shanxi Dayi Hospital, Shanxi Academy of Medical Sciences, Taiyuan 030032, China
| | - S H Zhao
- Department of Magnetic Resonance Imaging, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100037, China
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Yang K, Zhao SH, Lu MJ, Song YY, Li L, Chen XY, Yin G, Wei MD. [Clinical and cardiac magnetic resonance features of apical hypertrophic cardiomyopathy patients complicating with left ventricular apical aneurysm]. Zhonghua Xin Xue Guan Bing Za Zhi 2019; 47:534-538. [PMID: 31365993 DOI: 10.3760/cma.j.issn.0253-3758.2019.07.005] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the clinical and cardiac magnetic resonance (CMR) features of apical hypertrophic cardiomyopathy (ApHCM) patients complicating with left ventricular apical aneurysm (LVAA). Methods: CMR confirmed 25 ApHCM patients complicating with LVAA from January 2010 to December 2017 in Fuwai hospital were included in this study, and the baseline clinical data and CMR characteristics were retrospectively analyzed. There were 14 pure ApHCM (hypertrophy limited at the apical segments) complicating with LVAA patients and 11 mixed ApHCM (predominantly apical hypertrophy along with thickening of contiguous non-apical left ventricular region) with LVAA patients. Results: In this patient cohort,age of 84% (21/25) patients ranged between 20-70 years old, and 68% (17/25) were male. There were 68% (17/25) patients with complaint of chest distress symptom, 56% (14/25) with complaint of chest pain, 32% (8/25) with complaint of palpitation,16% (4/25) with complaint of dyspnea, and 12% (3/25) presented as syncope. ST-T segment changes of electrocardiogram were observed in all patients, and giant negative T waves were detected in 80% patients (20/25). The rate of missed diagnosis by echocardiography for detecting ApHCM and LVAA was 16% (4/25) and 68% (17/25), respectively. CMR showed discrete thin-walled dyskinetic or akinetic segment of the most distal portion of the left ventricular chamber in ApHCM patients with LVAA. Transmural late gadolinium enhancement of the aneurysmal rim was detected in 76% (19/25) patients, and the maximum transverse dimension of aneurysm was bigger in patients with transmural late gadolinium enhancement than in patients without transmural late gadolinium enhancement ((22.0±10.8)mm vs. (11.7±4.0) mm, P=0.033). Conclusion: ApHCM with LVAA patients have distinct cardiac clinical features, and CMR is the most useful tool for the accurate and objective evaluation of this disease.
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Affiliation(s)
- K Yang
- Department of Magnetic Resonance Imaging, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - S H Zhao
- Department of Magnetic Resonance Imaging, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - M J Lu
- Department of Magnetic Resonance Imaging, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Y Y Song
- Department of Magnetic Resonance Imaging, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - L Li
- Department of Magnetic Resonance Imaging, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - X Y Chen
- Department of Magnetic Resonance Imaging, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - G Yin
- Department of Magnetic Resonance Imaging, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - M D Wei
- Department of Radiology, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100144, China
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Huang J, Huang X, He M, Zhang B, Feng G, Yin G, Cui Y. Control of graphene aerogel self-assembly in strongly acidic solution via solution polarity tuning. RSC Adv 2019; 9:21155-21163. [PMID: 35521349 PMCID: PMC9065991 DOI: 10.1039/c9ra02658d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 06/28/2019] [Indexed: 11/21/2022] Open
Abstract
In view of their advantages (plasticity, low density, adjustable pore size, high porosity of >99.9%), three-dimensional graphene aerogels (GAs) are widely used for energy storage and adsorption separation, which has inspired the development and optimization of the corresponding synthetic techniques. In particular, self-assembly in the liquid phase features the benefits of tunability and sustainability and is viewed as a promising strategy of GA synthesis. During hydrothermal GA preparation, hydrophilic graphene oxide (GO) gradually turns lipophilic upon reduction, and the resulting phase transition separation and polarity change induce self-assembly into an aerogel. However, the effect of solution polarity on the structure or state of dispersed GO nanosheets, which affects the final property-determining process of automatic assembly, is still unclear. Herein, we prepared a series of GAs by hydrothermal reduction of unwashed GO with vitamin C in liquid-phase systems of different polarity and investigated the effects of polarity on the self-assembly process and aerogel properties using a range of instrumental techniques. The results showed that GO reduction is slowed down in weakly polar systems and further demonstrated that the shape of partially reduced graphene oxide (rGO) flakes depends on solution polarity. Flaky, layered, and stacked rGO particles obtained in strongly polar media self-assembled into anisotropic gully aerogels that were brittle and almost completely inelastic. Conversely, in weakly polar media, the prepared rGO sheets were twisted, which increased the number of contact points and modes between sheets and resulted in self-assembly into uniform-pore-structure honeycomb aerogels that showed good elasticity and could be repeatedly compressed.
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Affiliation(s)
- Jinhui Huang
- School of Materials Science and Engineering, Northwestern Polytechnical University Xi'an 710072 PR China
| | - Xue Huang
- Guangzhou Key Laboratory for Efficient Utilization of Agricultural Chemicals, Zhongkai University of Agriculture and Engineering Guangzhou 510225 P. R. China +86-20-89002328
| | - Ming He
- Guangzhou Key Laboratory for Efficient Utilization of Agricultural Chemicals, Zhongkai University of Agriculture and Engineering Guangzhou 510225 P. R. China +86-20-89002328
| | - Buning Zhang
- Guangzhou Key Laboratory for Efficient Utilization of Agricultural Chemicals, Zhongkai University of Agriculture and Engineering Guangzhou 510225 P. R. China +86-20-89002328
| | - Guangzhu Feng
- Guangzhou Key Laboratory for Efficient Utilization of Agricultural Chemicals, Zhongkai University of Agriculture and Engineering Guangzhou 510225 P. R. China +86-20-89002328
| | - Guoqiang Yin
- Guangzhou Key Laboratory for Efficient Utilization of Agricultural Chemicals, Zhongkai University of Agriculture and Engineering Guangzhou 510225 P. R. China +86-20-89002328
| | - Yingde Cui
- School of Materials Science and Engineering, Northwestern Polytechnical University Xi'an 710072 PR China
- Guangzhou Vocational College of Science and Technology Guangzhou 510550 P. R. China +86-20-87411788
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Wu S, Chen X, Yi M, Ge J, Yin G, Li X, He M. Improving Thermal, Mechanical, and Barrier Properties of Feather Keratin/Polyvinyl Alcohol/Tris(hydroxymethyl)aminomethane Nanocomposite Films by Incorporating Sodium Montmorillonite and TiO₂. Nanomaterials (Basel) 2019; 9:E298. [PMID: 30791573 PMCID: PMC6409987 DOI: 10.3390/nano9020298] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 02/11/2019] [Accepted: 02/13/2019] [Indexed: 12/02/2022]
Abstract
In this study, feather keratin/polyvinyl alcohol/tris(hydroxymethyl)aminomethane (FK/PVA/Tris) bionanocomposite films containing two types of nanoparticles, namely one-dimensional sodium montmorillonite (MMT) clay platelets (0.5, 1, 3, and 5 wt%) and three-dimensional TiO₂ nanospheres (0.5, 1, 3, and 5 wt%), are prepared using solvent casting method. X-ray diffraction studies confirm the completely exfoliated structure of FK/PVA/Tris/MMT nanocomposites. The successful formation of new hydrogen bonds between the hydroxyl groups of the film matrix and the nanofillers is confirmed by Fourier transform infrared spectroscopy. The tensile strength, elongation at break, and initial degradation temperature of the films are enhanced after MMT and TiO₂ incorporation. The water vapor permeability, oxygen permeability, and light transmittance decrease with increase in TiO₂ and MMT contents. In summary, nanoblending is an effective method to promote the application of FK/PVA/Tris blend films in the packaging field.
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Affiliation(s)
- Shufang Wu
- Green Chemical Engineering Institute, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
| | - Xunjun Chen
- Green Chemical Engineering Institute, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
| | - Minghao Yi
- Green Chemical Engineering Institute, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
| | - Jianfang Ge
- Green Chemical Engineering Institute, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
| | - Guoqiang Yin
- Green Chemical Engineering Institute, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
- Guangzhou Key Laboratory for Efficient Utilization of Agricultural Chemicals, Guangzhou 510225, China.
| | - Xinming Li
- Green Chemical Engineering Institute, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
| | - Ming He
- Green Chemical Engineering Institute, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
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Chen X, Yi M, Wu S, Tan L, Ge X, He M, Yin G. Synthesis of Structurally Precise Polysiloxanes via the Piers⁻Rubinsztajn Reaction. Materials (Basel) 2019; 12:E304. [PMID: 30669375 PMCID: PMC6356218 DOI: 10.3390/ma12020304] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 01/08/2019] [Accepted: 01/15/2019] [Indexed: 12/01/2022]
Abstract
Silicone materials are widely used, from daily life to the military industry. With the advancement of science and technology and the increasing demands of industry, the requirement for high-performance precise structural silicone materials has increased. Therefore, the most important aspect in this field is finding a breakthrough in the synthetic methods. In this review, the latest research developments in controllable morphological structure and composite structure optimized synthesis of silicone materials using the Piers⁻Rubinsztajn (PR) reaction are summarized. The advantages of the PR reaction compared with traditional synthetic routes to silicone materials are presented. The highly controllable spatial structure of silicone materials and the structural combination of biomass or inorganic materials with silicone materials results in an improvement in performance or function. The morphological control of more complex silicone materials and the synthesis of non-traditional silicone materials with composite structures through the PR reaction will be the main research directions for the development of silicone materials in the future.
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Affiliation(s)
- Xunjun Chen
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
| | - Minghao Yi
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
| | - Shufang Wu
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
| | - Lewen Tan
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
| | - Xin Ge
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
| | - Ming He
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
| | - Guoqiang Yin
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
- Guangzhou key Laboratory for Efficient Utilization of Agricultural Chemicals, Guangzhou 510225, China.
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Wu S, Chen X, Yi M, Ge J, Yin G, Li X. Improving the Water Resistance and Mechanical Properties of Feather Keratin/Polyvinyl Alcohol/Tris(Hydroxymethyl)Aminomethane Blend Films by Cross-Linking with Transglutaminase, CaCl₂, and Genipin. Materials (Basel) 2018; 11:E2203. [PMID: 30405028 PMCID: PMC6265746 DOI: 10.3390/ma11112203] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 11/05/2018] [Accepted: 11/05/2018] [Indexed: 11/18/2022]
Abstract
The high moisture sensitivity of feather keratin/polyvinyl alcohol/tris(hydroxymethyl)aminomethane (FK/PVA/Tris) blend films hinders their application in the packaging field. Thus, in order to improve the water resistance and mechanical properties of such blend films, we attempted cross-linking the blend film with cross-linking agents such as transglutaminase (TG), CaCl₂, and genipin. Obvious differences in the morphology of the blended films were observed by scanning electron microscopy before and after cross-linking, indicating that cross-linking can inhibit the phase separation of the blend film. Conformational changes in the blend films after cross-linking were detected by Fourier transform infrared spectroscopy. Importantly, from examination of the total soluble mass, contact angle measurements, and water vapor permeability tests, it was apparent that cross-linking greatly improved the water resistance of the blend films, in addition to enhancing the mechanical properties (i.e., tensile strength and elongation at break). However, cross-linking was also found to reduce the oxygen barrier properties of the blend films. Therefore, cross-linking appears to be an effective method for promoting the application of FK/PVA/Tris blend films in the packaging field.
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Affiliation(s)
- Shufang Wu
- Green Chemical Engineering Institute, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
| | - Xunjun Chen
- Green Chemical Engineering Institute, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
| | - Minghao Yi
- Green Chemical Engineering Institute, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
| | - Jianfang Ge
- Green Chemical Engineering Institute, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
| | - Guoqiang Yin
- Green Chemical Engineering Institute, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
- Guangzhou Key Laboratory for Efficient Utilization of Agricultural Chemicals, Guangzhou 510225, China.
| | - Xinming Li
- Green Chemical Engineering Institute, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
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Yin G, Tian Y, Wang P, Cao L, Lang J. Radiation-Induced Changes in Small World Network of brain in Patients with Nasopharyngeal Carcinoma: A Structure MRI Imaging Study. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.1566] [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: 10/28/2022]
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Chen X, Wu S, Yi M, Ge J, Yin G, Li X. Preparation and Physicochemical Properties of Blend Films of Feather Keratin and Poly(vinyl alcohol) Compatibilized by Tris(hydroxymethyl)aminomethane. Polymers (Basel) 2018; 10:polym10101054. [PMID: 30960979 PMCID: PMC6403771 DOI: 10.3390/polym10101054] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 09/18/2018] [Accepted: 09/19/2018] [Indexed: 11/16/2022] Open
Abstract
Blend films of feather keratin (FK) and synthetic poly(vinyl alcohol) (PVA) that were compatibilized by tris(hydroxymethyl)aminomethane (Tris) were successfully prepared by a solution-casting method. The scanning electron microscopy (SEM) results showed that a phase separation occurred in the FK/PVA/Tris blended system. Analysis by Fourier transform infrared spectroscopy indicated that the main interactions between the three components were hydrogen bonds. In addition, X-ray diffraction analysis showed that the FK/PVA/Tris blend films were partially crystalline. The barrier properties, mechanical properties, and contact angles of the FK/PVA/Tris films were investigated to determine the effects of the PVA and Tris concentrations. More specifically, upon increasing the PVA content, the elongation at break, the hydrophilicity, and the oxygen barrier properties were enhanced. However, at a constant PVA content, an increase in the Tris content caused the oxygen permeability and the contact angle to decrease, while the tensile strength, elongation at break, and oxygen barrier properties were enhanced. These results indicated that the mechanical properties and gas resistance of the FK/PVA/Tris blend films could be successfully improved using the method described herein, confirming that this route provided a convenient and promising means to prepare FK plastics for practical applications.
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Affiliation(s)
- Xunjun Chen
- Green Chemical Engineering Institute, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
| | - Shufang Wu
- Green Chemical Engineering Institute, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
| | - Minghao Yi
- Green Chemical Engineering Institute, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
| | - Jianfang Ge
- Green Chemical Engineering Institute, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
| | - Guoqiang Yin
- Green Chemical Engineering Institute, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
- Guangzhou Key Laboratory for Efficient Utilization of Agricultural Chemicals, Guangzhou 510225, China.
| | - Xinming Li
- Green Chemical Engineering Institute, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
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Ding J, Chen M, Chen W, He M, Zhou X, Yin G. Vapor-Assisted Crosslinking of a FK/PVA/PEO Nanofiber Membrane. Polymers (Basel) 2018; 10:polym10070747. [PMID: 30960672 PMCID: PMC6403592 DOI: 10.3390/polym10070747] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Revised: 06/29/2018] [Accepted: 07/01/2018] [Indexed: 11/25/2022] Open
Abstract
Herein, we demonstrate a three-component FK/PVA/PEO nanofiber membrane by electrospinning and vapor-assisted crosslinking. We have used feather-derived-keratin (FK), poly (vinyl alcohol) (PVA), and poly (ethylene oxide) (PEO) as membrane components and citric acid/glyoxal as the crosslinker. The structural, thermal, hydrophobicity, and mechanical properties of the as-prepared and crosslinked FK/PVA/PEO nanofiber membranes have been systematically investigated. The results suggest that the nanofiber membrane’s vapor-assisted crosslinking by citric acid has shown better performances than that of glyoxal used as a crosslinker. These results exhibit that non-toxic citric acid can be used as a crosslinking agent to modify the performance of keratin-based membranes. This study opens up further avenues for post-synthesis modification of polymeric membranes for a wide range of applications.
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Affiliation(s)
- Jiao Ding
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
- Guangzhou Key Laboratory for Efficient Utilization of Agricultural Chemicals, Guangzhou 510225, China.
| | - Man Chen
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
| | - Wenjie Chen
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
| | - Ming He
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
- Guangzhou Key Laboratory for Efficient Utilization of Agricultural Chemicals, Guangzhou 510225, China.
| | - Xiangyang Zhou
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
- Guangzhou Key Laboratory for Efficient Utilization of Agricultural Chemicals, Guangzhou 510225, China.
| | - Guoqiang Yin
- College of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
- Guangzhou Key Laboratory for Efficient Utilization of Agricultural Chemicals, Guangzhou 510225, China.
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Fan H, Li S, Lu M, Yin G, Yang X, Lan T, Dai L, Chen X, Li J, Zhang Y, Sirajuddin A, Kellman P, Arai AE, Zhao S. Myocardial late gadolinium enhancement: a head-to-head comparison of motion-corrected balanced steady-state free precession with segmented turbo fast low angle shot. Clin Radiol 2018; 73:593.e1-593.e9. [PMID: 29548551 DOI: 10.1016/j.crad.2018.02.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 02/08/2018] [Indexed: 02/08/2023]
Abstract
AIM To evaluate the image quality and diagnostic agreement with a head-to-head comparison of late gadolinium enhancement (LGE) images acquired by the motion-corrected (MOCO) balanced steady-state free precession (bSSFP) phase sensitivity inversion recovery (PSIR) and conventional segmented fast low angle shot (FLASH) PSIR methods15,16 in a patient cohort with a wide spectrum of cardiovascular disease. MATERIALS AND METHODS In 59 consecutive patients, signal-to-noise ratios (SNRs), contrast-to-noise ratios (CNRs) of the normal myocardium (NM), LGE, and blood pool (BP) were pair-wise compared between the two different sequences. A further semi-qualitative score system (graded 1 -4) was used to compare the overall image quality (OIQ). The diagnostic agreement of the two techniques were evaluated by both transmural severity and absolutely quantitative size of LGE. RESULTS The SNRs of the NM, LGE, and BP of MOCO bSSFP were 4.8±3.4, 53.6±35.6 and 43.2±29.3, compared with 3.9±3.6 (p=0.126), 27.7±18.5 (p<0.001) and 24.3±13.4 (p<0.001) of FLASH LGE, respectively. The CNRs of LGE to NM, LGE to BP, and BP to NM were 48.3±33.1 versus 23.8±16.7 (p<0.001), 6.5±21.6 versus 3.8±10.8 (p<0.001), and 38.3±27.2 versus 20.3±10.7 (p=0.448), respectively. The OIQ of MOCO bSSFP was higher than that of segmented FLASH (median 4 versus median 3, p<0.001). For quantification of LGE size, there is good agreement and high correlation (r=0.992, p<0.001) between the two methods. CONCLUSIONS MOCO bSSFP is a feasible, robust sequence for LGE imaging, especially for patients with arrhythmia and those incapable of breath-holding due to severe heart failure.
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Affiliation(s)
- H Fan
- Department of Magnetic Resonance Imaging, Cardiovascular Imaging and Intervention Center, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China; Department of Radiology, Air Force General Hospital, People's Liberation Army, Beijing, China
| | - S Li
- Department of Magnetic Resonance Imaging, Cardiovascular Imaging and Intervention Center, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - M Lu
- Department of Magnetic Resonance Imaging, Cardiovascular Imaging and Intervention Center, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China; National Heart, Lung and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, MD, USA.
| | - G Yin
- Department of Magnetic Resonance Imaging, Cardiovascular Imaging and Intervention Center, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - X Yang
- Department of Magnetic Resonance Imaging, Cardiovascular Imaging and Intervention Center, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - T Lan
- Department of Magnetic Resonance Imaging, Cardiovascular Imaging and Intervention Center, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - L Dai
- Department of Magnetic Resonance Imaging, Cardiovascular Imaging and Intervention Center, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - X Chen
- Department of Magnetic Resonance Imaging, Cardiovascular Imaging and Intervention Center, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - J Li
- Department of Magnetic Resonance Imaging, Cardiovascular Imaging and Intervention Center, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Zhang
- Department of Magnetic Resonance Imaging, Cardiovascular Imaging and Intervention Center, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - A Sirajuddin
- National Heart, Lung and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, MD, USA
| | - P Kellman
- Cardiovascular and Pulmonary Branch, National Heart, Lung and Blood Institute, National Institutes of Health, US Department of Health and Human Services, Bethesda, USA
| | - A E Arai
- National Heart, Lung and Blood Institute (NHLBI), National Institutes of Health (NIH), Bethesda, MD, USA
| | - S Zhao
- Department of Magnetic Resonance Imaging, Cardiovascular Imaging and Intervention Center, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
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Cheng S, Cui C, Yin G, Li L, Zhao S. P3325Prognostic value of cardiac magnetic resonance imaging for end-stage phase of hypertrophic cardiomyopathy patients with or without adverse ventricular remodeling. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p3325] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Zhao G, Yin G, Inamdar AA, Luo J, Zhang N, Yang I, Buckley B, Bennett JW. Volatile organic compounds emitted by filamentous fungi isolated from flooded homes after Hurricane Sandy show toxicity in a Drosophila bioassay. Indoor Air 2017; 27:518-528. [PMID: 27748984 DOI: 10.1111/ina.12350] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Accepted: 10/12/2016] [Indexed: 06/06/2023]
Abstract
Superstorm Sandy provided an opportunity to study filamentous fungi (molds) associated with winter storm damage. We collected 36 morphologically distinct fungal isolates from flooded buildings. By combining traditional morphological and cultural characters with an analysis of ITS sequences (the fungal DNA barcode), we identified 24 fungal species that belong to eight genera: Penicillium (11 species), Fusarium (four species), Aspergillus (three species), Trichoderma (two species), and one species each of Metarhizium, Mucor, Pestalotiopsis, and Umbelopsis. Then, we used a Drosophila larval assay to assess possible toxicity of volatile organic compounds (VOCs) emitted by these molds. When cultured in a shared atmosphere with growing cultures of molds isolated after Hurricane Sandy, larval toxicity ranged from 15 to 80%. VOCs from Aspergillus niger 129B were the most toxic yielding 80% mortality to Drosophila after 12 days. The VOCs from Trichoderma longibrachiatum 117, Mucor racemosus 138a, and Metarhizium anisopliae 124 were relatively non-toxigenic. A preliminary analysis of VOCs was conducted using solid-phase microextraction-gas chromatography-mass spectrometry from two of the most toxic, two of the least toxic, and two species of intermediate toxicity. The more toxic molds produced higher concentrations of 1-octen-3-ol, 3-octanone, 3-octanol, 2-octen-1-ol, and 2-nonanone; while the less toxic molds produced more 3-methyl-1-butanol and 2-methyl-1-propanol, or an overall lower amount of volatiles. Our data support the hypothesis that at certain concentrations, some VOCs emitted by indoor molds are toxigenic.
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Affiliation(s)
- G Zhao
- College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, China
| | - G Yin
- Department of Plant Biology and Pathology, Rutgers, The State University of New Jersey, New Brunswick, NJ, USA
| | - A A Inamdar
- Department of Plant Biology and Pathology, Rutgers, The State University of New Jersey, New Brunswick, NJ, USA
| | - J Luo
- Department of Plant Biology and Pathology, Rutgers, The State University of New Jersey, New Brunswick, NJ, USA
| | - N Zhang
- Department of Plant Biology and Pathology, Rutgers, The State University of New Jersey, New Brunswick, NJ, USA
| | - I Yang
- Environmental and Occupational Health Sciences Institute, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
| | - B Buckley
- Environmental and Occupational Health Sciences Institute, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
| | - J W Bennett
- Department of Plant Biology and Pathology, Rutgers, The State University of New Jersey, New Brunswick, NJ, USA
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He M, Zhang B, Dou Y, Yin G, Cui Y, Chen X. Fabrication and characterization of electrospun feather keratin/poly(vinyl alcohol) composite nanofibers. RSC Adv 2017. [DOI: 10.1039/c6ra25009b] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We have fabricated random and aligned feather keratin (FK)/PVA composite nanofibers through an electrospinning process. The morphology, molecular interactions, crystallization behavior, and tensile properties of the nanofibers were investigated.
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Affiliation(s)
- Ming He
- School of Materials Science and Engineering
- Northwestern Polytechnical University
- Xi'an
- China
| | - Buning Zhang
- College of Chemistry and Chemical Engineering
- Zhongkai University of Agriculture and Engineering
- Guangzhou 510225
- China
| | - Yao Dou
- School of Materials Science and Engineering
- Northwestern Polytechnical University
- Xi'an
- China
| | - Guoqiang Yin
- College of Chemistry and Chemical Engineering
- Zhongkai University of Agriculture and Engineering
- Guangzhou 510225
- China
| | - Yingde Cui
- School of Materials Science and Engineering
- Northwestern Polytechnical University
- Xi'an
- China
- Guangzhou Vocational College of Science and Technology
| | - Xunjun Chen
- College of Chemistry and Chemical Engineering
- Zhongkai University of Agriculture and Engineering
- Guangzhou 510225
- China
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49
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Affiliation(s)
- Ming He
- School of Materials Science and Engineering; Northwestern Polytechnical University; Xi'an 710072 People's Republic of China
| | - Buning Zhang
- College of Chemistry and Chemical Engineering; Zhongkai University of Agricultural and Engineering; Guangzhou 510225 People's Republic of China
| | - Yao Dou
- School of Materials Science and Engineering; Northwestern Polytechnical University; Xi'an 710072 People's Republic of China
| | - Guoqiang Yin
- College of Chemistry and Chemical Engineering; Zhongkai University of Agricultural and Engineering; Guangzhou 510225 People's Republic of China
| | - Yingde Cui
- School of Materials Science and Engineering; Northwestern Polytechnical University; Xi'an 710072 People's Republic of China
- Guangzhou Vocational College of Science and Technology, Guangzhou 510550, People's Republic of China
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Guo K, Yin G, Zi XH, Zhu HX, Pan Q. Effect of selective serotonin reuptake inhibitors on expression of 5-HT1AR and neurotransmitters in rats with vascular dementia. Genet Mol Res 2016; 15:gmr-15-04-gmr.15049031. [PMID: 27966748 DOI: 10.4238/gmr15049031] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
5-hydroxytryptamine receptor 1A (5-HT1AR) is closely associated with cognitive functions. Selective serotonin reuptake inhibitors (SSRIs) can protect individuals from brain damage following ischemia/hypoxia. To investigate the function of SSRIs in vascular dementia (VD), we established a rat model of VD, and observed the effect of SSRIs on the expression of 5-HT1AR mRNA and neurotransmitters. Male SD rats (6 months) were randomly assigned into sham, model, and SSRI groups (N = 30). VD was achieved by permanent ligation of the bilateral common carotid artery. Escitalopram, a highly selective 5-HT reabsorption inhibitor, was ip injected into the rats for three consecutive weeks. The Morris water-maze was used to test learning and memory. H&E staining for neuronal injury was conducted on cortical and hippocampal tissues. HPLC was used to determine the levels of dopamine (DA), 5-HT, and norepinephrine (NE). RT-PCR was used to determine expression of 5-HT1AR mRNA. As compared to control rats, model animals demonstrated elongated escape latency, lower platform crossing times, and significant injuries to hippocampal CA1 neurons. This was accompanied by reductions in DA, 5-HT, and NE levels in hippocampal tissues, as well as reduced cortical 5-HT and decreased 5-HT1AR mRNA expression (P < 0.05). Escitalopram treatments reduced escape latency, elevated platform crossing times, improved CA1 neuronal damage, increased DA and 5-HT levels in hippocampal and cortical neurons, as well as elevated expression of 5-HT1AR mRNA (P < 0.05). Therefore, SSRIs may improve cognitive dysfunction of VD rats, possibly by stimulating expression of neurotransmitters and protecting neurons.
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Affiliation(s)
- K Guo
- Department of Neurology, the Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - G Yin
- Department of Pathology, Xiangya Medical School, Central South University, Changsha, Hunan, China
| | - X H Zi
- Department of Neurology, the Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - H X Zhu
- Department of Neurology, the Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Q Pan
- Department of Obstetrics and Gynecology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
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