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Mai X, Zhang X, Tang M, Zheng Y, Wang D, Xu W, Liu F, Sun Z. Preparation of carboxymethyl chitosan/double-formaldehyde cellulose based hydrogel loaded with ginger essential oil nanoemulsion for meat preservation. Food Sci Biotechnol 2024; 33:1359-1369. [PMID: 38585560 PMCID: PMC10991447 DOI: 10.1007/s10068-023-01437-4] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 08/30/2023] [Accepted: 09/15/2023] [Indexed: 04/09/2024] Open
Abstract
An antibacterial nano-hydrogel (ginger essential oil nanoemulsion hydrogel, GEONH) based on Schiff base reaction was prepared using double-formaldehyde micro fibrillated cellulose (DAMFC) and carboxymethyl chitosan (CMCS) loaded with ginger essential oil nanoemulsion (GEON). It was found that when the mass ratio of DAMFC/CMCS/GEON was 1/9/270, the gel time, the water absorbency, gel strength, and morphology were the best. The results of X-ray diffraction and FT-IR confirmed that the aldehyde group on the DAMFC molecular chain formed a stable chemical crosslinking with the amino group on the CMCS molecular chain, resulting in a change in the crystal structure. GEONH showed excellent bactericidal activity against Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus. Simultaneously, the prepared GEONH decreased the total viable count, Malondialdehyde, and total sulfhydryl content and improved the taste in the storage of boiled salted duck. Therefore, GEONH film is a promising fresh-keeping packaging for storing meat products. Supplementary Information The online version contains supplementary material available at 10.1007/s10068-023-01437-4.
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Affiliation(s)
- Xutao Mai
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Nanjing, 210014 China
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210097 China
| | - Xinxiao Zhang
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Nanjing, 210014 China
| | - Minmin Tang
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Nanjing, 210014 China
| | - Yuhang Zheng
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Nanjing, 210014 China
| | - Daoying Wang
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Nanjing, 210014 China
- Institute of Agricultural Products Processing, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014 China
- Key Laboratory of Cold Chain Logistics Technology for Agro-product, Ministry of Agriculture and Rural Affairs, Nanjing, 210014 China
| | - Weimin Xu
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Nanjing, 210014 China
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210097 China
| | - Fang Liu
- Institute of Agricultural Products Processing, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014 China
| | - Zhilan Sun
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Nanjing, 210014 China
- Key Laboratory of Cold Chain Logistics Technology for Agro-product, Ministry of Agriculture and Rural Affairs, Nanjing, 210014 China
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Shi Y, You H, Liu C, Qiu Y, Lv C, Zhu Y, Xu L, Wang F, Zhang M, Tan W. Elevated serum B-cell activator factor levels predict rapid progressive interstitial lung disease in anti-melanoma differentiation associated protein 5 antibody positive dermatomyositis. Orphanet J Rare Dis 2024; 19:170. [PMID: 38637830 PMCID: PMC11027411 DOI: 10.1186/s13023-024-03153-6] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Accepted: 03/28/2024] [Indexed: 04/20/2024] Open
Abstract
BACKGROUND Rapid progressive interstitial lung disease (RP-ILD) is the leading cause of anti-melanoma differentiation associated protein 5 antibody positive dermatomyositis (anti-MDA5+DM) related death. Elevated serum B-cell activating factor (BAFF) levels have been implicated in connective tissue diseases associated ILD. Here, we evaluate whether BAFF could be a prognostic biomarker for predicting RP-ILD in anti-MDA5+DM patients. METHODS Serums were collected from 39 patients with anti-MDA5+DM (20 with RP-ILD and 19 with non-RP-ILD), 20 antisynthase syndrome (ASS) patients and 20 healthy controls (HC). BAFF concentration was measured by an enzyme-linked immunosorbent assay. RESULTS Serum BAFF level was higher in anti-MDA5+DM patients than those in ASS patients and HC (3882.32 ± 1880.09 vs. 2540.89 ± 1403.04 and 2486.28 ± 767.97 pg/mL, p = 0.0056 and 0.0038, respectively). Within anti-MDA5+DM groups, RP-ILD patients exhibited higher BAFF concentration than non-RP-ILD group (4549.78 ± 1839.97 vs. 3297.28 ± 1794.69 pg/mL, p = 0.04). The BAFF concentration was positively correlated with levels of C-reactive protein (CRP), dehydrogenase (LDH) and cytokeratin (CK) in anti-MDA5+DM patients (r = 0.350, p = 0.035; r = 0.393, p = 0.016; r = 0.518, p = 0.001; respectively). The best cut-off value of BAFF concentration was 2971.5 pg/mL by ROC curve (AUC area = 0.690, p = 0.045) and BAFF > 2971.5 pg/mL was an independent risk factor for RP-ILD using multivariate analysis (OR = 9.389, 95% CI = 1.609-54.769; p = 0.013). CONCLUSIONS Serum BAFF could be a useful prognostic biomarker for early detecting RP-ILD risk in anti-MDA5+DM patients.
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Affiliation(s)
- Yumeng Shi
- Department of Rheumatology, The First Affiliated Hospital of Nanjing Medical University, No. 300, Guangzhou Road, Gulou District, Nanjing, 210029, China
| | - Hanxiao You
- Department of Rheumatology, The First Affiliated Hospital of Nanjing Medical University, No. 300, Guangzhou Road, Gulou District, Nanjing, 210029, China
| | - Chang Liu
- Department of Rheumatology, The First Affiliated Hospital of Nanjing Medical University, No. 300, Guangzhou Road, Gulou District, Nanjing, 210029, China
| | - Yulu Qiu
- Department of Rheumatology, The First Affiliated Hospital of Nanjing Medical University, No. 300, Guangzhou Road, Gulou District, Nanjing, 210029, China
| | - Chengyin Lv
- Department of Rheumatology, The First Affiliated Hospital of Nanjing Medical University, No. 300, Guangzhou Road, Gulou District, Nanjing, 210029, China
| | - Yujing Zhu
- Department of Rheumatology, The First Affiliated Hospital of Nanjing Medical University, No. 300, Guangzhou Road, Gulou District, Nanjing, 210029, China
| | - Lingxiao Xu
- Department of Rheumatology, The First Affiliated Hospital of Nanjing Medical University, No. 300, Guangzhou Road, Gulou District, Nanjing, 210029, China
| | - Fang Wang
- Department of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Miaojia Zhang
- Department of Rheumatology, The First Affiliated Hospital of Nanjing Medical University, No. 300, Guangzhou Road, Gulou District, Nanjing, 210029, China.
| | - Wenfeng Tan
- Department of Rheumatology, The First Affiliated Hospital of Nanjing Medical University, No. 300, Guangzhou Road, Gulou District, Nanjing, 210029, China.
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He G, Ren J, Shi H, Liu W, Lu M. Correlation between the MNCD classification-based staging of Parkinson's disease and quality of life: a cross-sectional study. J Neural Transm (Vienna) 2024; 131:315-322. [PMID: 38548920 PMCID: PMC11016126 DOI: 10.1007/s00702-024-02756-4] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 02/21/2024] [Indexed: 04/14/2024]
Abstract
Parkinson's disease (PD) is a highly heterogeneous neurodegenerative disorder with varying clinical subtypes. Recently, a novel classification called MNCD (Motor/Non-motor/Cognition/Dependency) has been proposed, which can also include staging based on disease severity. We aim to investigate which staging, the MNCD classification and staging or Hoehn and Yahr (H&Y) staging, exhibits a stronger correlation with the 39-item Parkinson's Disease Questionnaire (PDQ-39). In a cross-sectional study conducted at our single center, 357 PD patients were recruited. Data encompassed scores from various assessments such as the Movement Disorder Society of the Unified Parkinson's Disease Rating Scale (MDS-UPDRS) Parts I, II, III and IV, Montreal Cognitive Assessment (MoCA), PDQ-39, and the H&Y scale. The mean age of these patients was 66.4 ± 9.1 years old, and the majority (54.6%) were male. MNCD stages: stage 1 (N = 3, 0.8%), stage 2 (N = 62, 17.4%), stage 3 (N = 187, 52.4%), stage 4 (N = 86, 24.1%), and stage 5 (N = 19, 5.3%). The top 5 most frequent PD-related clinical symptoms were sleep disturbances (89.6%), fatigue (69.7%), mild cognitive impairment (68.9%), constipation (65.8%), and postural instability (65.5%). The PDQ-39 demonstrated a positive correlation with both MNCD staging and H&Y staging. Moreover, the MNCD staging exhibited a stronger correlation with PDQ-39 compared to H&Y staging. The correlation between the MNCD classification and staging with the quality of life in PD patients is more statistically significant compared to the H&Y staging.
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Affiliation(s)
- Guixiang He
- Department of Neurology, Affiliated Brain Hospital of Nanjing Medical University, Nanjing, People's Republic of China
- The Yancheng School of Clinical Medicine of Nanjing Medical University, Yancheng Third People's Hospital, Yancheng, People's Republic of China
- Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, Nanjing, People's Republic of China
| | - Jingru Ren
- Department of Neurology, Affiliated Brain Hospital of Nanjing Medical University, Nanjing, People's Republic of China
| | - Haicun Shi
- The Yancheng School of Clinical Medicine of Nanjing Medical University, Yancheng Third People's Hospital, Yancheng, People's Republic of China
| | - Weiguo Liu
- Department of Neurology, Affiliated Brain Hospital of Nanjing Medical University, Nanjing, People's Republic of China.
| | - Ming Lu
- Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, Nanjing, People's Republic of China.
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Zang G, Chen Y, Guo G, Wan A, Li B, Wang Z. Protective Effect of CD137 Deficiency against Post-infarction Cardiac Fibrosis and Adverse Cardiac Remodeling via ERK1/2 Signaling Pathways. J Cardiovasc Pharmacol 2024:00005344-990000000-00287. [PMID: 38416872 DOI: 10.1097/fjc.0000000000001549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 01/29/2024] [Indexed: 03/01/2024]
Abstract
Myocardial fibrosis, a common complication of myocardial infarction (MI), is characterized by excessive collagen deposition and can result in impaired cardiac function. The specific role of CD137 in the development of post-MI myocardial fibrosis remains unclear. Thus, this study aimed to elucidate the effects of CD137 signaling using CD137 knockout mice and in vitro experiments. CD137 expression levels progressively increased in the heart following MI, particularly in myofibroblast, which play a key role in fibrosis. Remarkably, CD137 knockout mice exhibited improved cardiac function and reduced fibrosis compared to wild-type mice at day 28 post-MI. The use of Masson's trichrome and picrosirius red staining demonstrated a reduction in the infarct area and collagen volume fraction in CD137 knockout mice. Furthermore, the expression of alpha-smooth muscle actin (α-SMA) and collagen I, key markers of fibrosis, was decreased in heart tissues lacking CD137. In vitro experiments supported these findings, as CD137 depletion attenuated cardiac fibroblast differentiation, and migration, and collagen I synthesis. Additionally, the administration of CD137L recombinant protein further promoted α-SMA expression and collagen I synthesis, suggesting a pro-fibrotic effect. Notably, the application of an inhibitor targeting the extracellular signal-regulated kinase 1/2 (ERK1/2) signaling pathway attenuated the pro-fibrotic effects of CD137L. To conclude, this study provides evidence that CD137 plays a significant role in promoting myocardial fibrosis after MI. Inhibition of CD137 signaling pathways may hold therapeutic potential for mitigating pathological cardiac remodeling and improving post-MI cardiac function.
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Affiliation(s)
- Guangyao Zang
- Department of Cardiology, Affiliated Hospital and Institute of Cardiovascular Diseases, Jiangsu University, Zhenjiang 212001, China
| | - Yiliu Chen
- Department of Cardiology, Affiliated Hospital and Institute of Cardiovascular Diseases, Jiangsu University, Zhenjiang 212001, China
| | - Ge Guo
- Department of Cardiology, Affiliated Hospital and Institute of Cardiovascular Diseases, Jiangsu University, Zhenjiang 212001, China
| | - Aijun Wan
- School of Nursing, Zhenjiang College, Zhenjiang 212028, China
| | - Bo Li
- Department of Cardiology, Affiliated Hospital and Institute of Cardiovascular Diseases, Jiangsu University, Zhenjiang 212001, China
| | - Zhongqun Wang
- Department of Cardiology, Affiliated Hospital and Institute of Cardiovascular Diseases, Jiangsu University, Zhenjiang 212001, China
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Zhang M, Hyle J, Chen X, Xin Y, Jin Y, Zhang J, Yang X, Chen X, Wright S, Liu Z, Rosikiewicz W, Xu B, He L, Liu H, Ping N, Wu D, Wen F, Li C, Xu P. RNA-binding protein RBM5 plays an essential role in acute myeloid leukemia by activating the oncogenic protein HOXA9. Genome Biol 2024; 25:16. [PMID: 38216972 PMCID: PMC10785552 DOI: 10.1186/s13059-023-03149-8] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Accepted: 12/20/2023] [Indexed: 01/14/2024] Open
Abstract
BACKGROUND The oncogenic protein HOXA9 plays a critical role in leukemia transformation and maintenance, and its aberrant expression is a hallmark of most aggressive acute leukemia. Although inhibiting the upstream regulators of HOXA9 has been proven as a significant therapeutic intervention, the comprehensive regulation network controlling HOXA9 expression in leukemia has not been systematically investigated. RESULTS Here, we perform genome-wide CRISPR/Cas9 screening in the HOXA9-driven reporter acute leukemia cells. We identify a poorly characterized RNA-binding protein, RBM5, as the top candidate gene required to maintain leukemia cell fitness. RBM5 is highly overexpressed in acute myeloid leukemia (AML) patients compared to healthy individuals. RBM5 loss triggered by CRISPR knockout and shRNA knockdown significantly impairs leukemia maintenance in vitro and in vivo. Through domain CRISPR screening, we reveal that RBM5 functions through a noncanonical transcriptional regulation circuitry rather than RNA splicing, such an effect depending on DNA-binding domains. By integrative analysis and functional assays, we identify HOXA9 as the downstream target of RBM5. Ectopic expression of HOXA9 rescues impaired leukemia cell proliferation upon RBM5 loss. Importantly, acute protein degradation of RBM5 through auxin-inducible degron system immediately reduces HOXA9 transcription. CONCLUSIONS We identify RBM5 as a new upstream regulator of HOXA9 and reveal its essential role in controlling the survival of AML. These functional and molecular mechanisms further support RBM5 as a promising therapeutic target for myeloid leukemia treatment.
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Affiliation(s)
- Mengli Zhang
- Cyrus Tang Medical Institute, National Clinical Research Center for Hematologic Diseases, State Key Laboratory of Radiation Medicine and Protection, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Judith Hyle
- Department of Tumor Cell Biology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN, 38105, USA
| | - Xiaowen Chen
- Division of Hematology and Oncology, Shenzhen Children's Hospital, Shenzhen Institute of Pediatrics, 7019 Yi Tian Road, Shenzhen, 518038, China
| | - Ye Xin
- Cyrus Tang Medical Institute, National Clinical Research Center for Hematologic Diseases, State Key Laboratory of Radiation Medicine and Protection, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Yingcai Jin
- Cyrus Tang Medical Institute, National Clinical Research Center for Hematologic Diseases, State Key Laboratory of Radiation Medicine and Protection, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Jianxiang Zhang
- Cyrus Tang Medical Institute, National Clinical Research Center for Hematologic Diseases, State Key Laboratory of Radiation Medicine and Protection, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Xue Yang
- Cyrus Tang Medical Institute, National Clinical Research Center for Hematologic Diseases, State Key Laboratory of Radiation Medicine and Protection, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Xinfeng Chen
- Cyrus Tang Medical Institute, National Clinical Research Center for Hematologic Diseases, State Key Laboratory of Radiation Medicine and Protection, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Shaela Wright
- Department of Tumor Cell Biology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN, 38105, USA
| | - Zhenling Liu
- Department of Tumor Cell Biology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN, 38105, USA
| | - Wojciech Rosikiewicz
- Center for Applied Bioinformatics, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN, 38105, USA
| | - Beisi Xu
- Center for Applied Bioinformatics, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN, 38105, USA
| | - Liusheng He
- Core Facility of Flow Cytometry, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN, 38105, USA
| | - Hong Liu
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, 215123, Jiangsu, China
| | - Nana Ping
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, 215123, Jiangsu, China
| | - Depei Wu
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, 215123, Jiangsu, China
| | - Feiqiu Wen
- Division of Hematology and Oncology, Shenzhen Children's Hospital, Shenzhen Institute of Pediatrics, 7019 Yi Tian Road, Shenzhen, 518038, China
| | - Chunliang Li
- Department of Tumor Cell Biology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN, 38105, USA.
| | - Peng Xu
- Cyrus Tang Medical Institute, National Clinical Research Center for Hematologic Diseases, State Key Laboratory of Radiation Medicine and Protection, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, 215123, Jiangsu, China.
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Yang J, Ma YX, Zong Y, Sun M, Wang Y, Zhang RL, Feng J, Wang CZ, Zhuo SP, Zhou J, Shi YL, Chen SH, Wang XD, Lin HT. Precise Synthesis of Organic Cocrystal Alloys with Full-Spectrum Emission Characteristics for the Stepless Color Changing Display. Small 2023:e2307129. [PMID: 38126615 DOI: 10.1002/smll.202307129] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 11/17/2023] [Indexed: 12/23/2023]
Abstract
Organic luminescent materials are indispensable in optoelectronic displays and solid-state luminescence applications. Compared with single-component, multi-component crystalline materials can improve optoelectronic characteristics. This work forms a series of full-spectrum tunable luminescent charge-transfer (CT) cocrystals ranging from 400 to 800 nm through intermolecular collaborative self-assembly. What is even more interesting is that o-TCP-Cor(x) -Pe(1-x) , p-TCP-Cor(x) -Pe(1-x) , and o-TCP-AN(x) -TP(1-x) alloys are prepared based on cocrystals by doping strategies, which correspondingly achieve the stepless color change from blue (CIE [0.22, 0.44]) to green (CIE [0.16, 0.14]), from green (CIE [0.27, 0.56]) to orange (CIE [0.58, 0.42]), from yellow (CIE [0.40, 0.57]) to red (CIE [0.65, 0.35]). The work provides an efficient method for precisely synthesizing new luminescent organic semiconductor materials and lays a solid foundation for developing advanced organic solid-state displays.
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Affiliation(s)
- Jing Yang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, Shandong, 255000, P. R. China
| | - Ying-Xin Ma
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, Shandong, 255000, P. R. China
| | - Yi Zong
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, Jiangsu, 215123, P. R. China
| | - Mao Sun
- School of resources and environmental engineering, Shandong University of Technology, Zibo, Shandong, 255000, P. R. China
| | - Yun Wang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, Shandong, 255000, P. R. China
| | - Ren-Long Zhang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, Shandong, 255000, P. R. China
| | - Jin Feng
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, Shandong, 255000, P. R. China
| | - Chuan-Zeng Wang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, Shandong, 255000, P. R. China
| | - Shu-Ping Zhuo
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, Shandong, 255000, P. R. China
| | - Jin Zhou
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, Shandong, 255000, P. R. China
| | - Ying-Li Shi
- Department of Electrical and Electronic Engineering, Xi'an Jiaotong-Liverpool University, Suzhou, Jiangsu, 215123, P. R. China
| | - Shu-Hai Chen
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, Shandong, 255000, P. R. China
| | - Xue-Dong Wang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, Jiangsu, 215123, P. R. China
| | - Hong-Tao Lin
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, Shandong, 255000, P. R. China
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Wang YJ, Zhao LM. Synthesis of 10-Membered Azecines through Pd-Catalyzed Formal [6+4] Cycloaddition and Their Transannular Reaction to Polycyclic Compounds. Chemistry 2023; 29:e202302111. [PMID: 37776147 DOI: 10.1002/chem.202302111] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 09/17/2023] [Accepted: 09/25/2023] [Indexed: 10/01/2023]
Abstract
Azecine fragments are frequently presented in natural products and bioactive compounds. However, minor efforts have been devoted to these 10-membered N-heterocycles, and their synthesis is still challenging. Reported herein is the first catalytic formal [6+4] cycloaddition for the synthesis of 10-membered azecines. Under palladium catalysis, the reaction of δ-vinylvalerolactones and benzofuran-derived azadienes proceeds smoothly to afford benzofuran-fused azecines with high diastereoselectivity in moderate to good yields. A unique transannular reaction of these 10-membered azecines for the construction of polycyclic compounds is also demonstrated.
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Affiliation(s)
- Yu-Jiao Wang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, Jiangsu, China
| | - Li-Ming Zhao
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116, Jiangsu, China
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8
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Guo H, Liu Y, Li X, Wang H, Mao D, Wei L, Ye X, Qu D, Huo J, Chen Y. Magnetic Metal-Organic Framework-Based Nanoplatform with Platelet Membrane Coating as a Synergistic Programmed Cell Death Protein 1 Inhibitor against Hepatocellular Carcinoma. ACS Nano 2023; 17:23829-23849. [PMID: 37991391 PMCID: PMC10722610 DOI: 10.1021/acsnano.3c07885] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 11/16/2023] [Accepted: 11/17/2023] [Indexed: 11/23/2023]
Abstract
Programmed cell death protein 1 (PD-1) inhibitors are the most common immune-checkpoint inhibitors and considered promising drugs for hepatocellular carcinoma (HCC). However, in clinical settings, they have a low objective response rate (15%-20%) for patients with HCC; this is because of the insufficient level and activity of tumor-infiltrating T lymphocytes (TILs). The combined administration of oxymatrine (Om) and astragaloside IV (As) can increase the levels of TILs by inhibiting the activation of cancer-associated fibroblasts (CAFs) and improve the activity of TILs by enhancing their mitochondrial function. In the present study, we constructed a magnetic metal-organic framework (MOF)-based nanoplatform with platelet membrane (Pm) coating (PmMN@Om&As) to simultaneously deliver Om and As into the HCC microenvironment. We observed that PmMN@Om&As exhibited a high total drug-loading capacity (33.77 wt %) and good immune escape. Furthermore, it can target HCC tissues in a magnetic field and exert long-lasting effects. The HCC microenvironment accelerated the disintegration of PmMN@Om&As and the release of Om&As, thereby increasing the level and activity of TILs by regulating CAFs and the mitochondrial function of TILs. In addition, the carrier could synergize with Om&As by enhancing the oxygen consumption rate and proton efflux rate of TILs, thereby upregulating the mitochondrial function of TILs. Combination therapy with PmMN@Om&As and α-PD-1 resulted in a tumor suppression rate of 84.15% and prolonged the survival time of mice. Our study provides a promising approach to improving the antitumor effect of immunotherapy in HCC.
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Affiliation(s)
- Hong Guo
- Affiliated
Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China
- Multi-component
of Traditional Chinese Medicine and Microecology Researh Center, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, China
| | - Yuping Liu
- Affiliated
Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China
- Multi-component
of Traditional Chinese Medicine and Microecology Researh Center, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, China
- Jiangsu
Clinical Innovation Center of Digestive Cancer of Traditional Chinese
Medicine, Nanjing 210028, China
| | - Xia Li
- Affiliated
Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China
- Multi-component
of Traditional Chinese Medicine and Microecology Researh Center, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, China
| | - Hong Wang
- Affiliated
Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China
- Multi-component
of Traditional Chinese Medicine and Microecology Researh Center, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, China
| | - Dengxuan Mao
- Affiliated
Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China
- Multi-component
of Traditional Chinese Medicine and Microecology Researh Center, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, China
| | - Liangyin Wei
- Affiliated
Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China
- Multi-component
of Traditional Chinese Medicine and Microecology Researh Center, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, China
| | - Xietao Ye
- Affiliated
Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China
- Multi-component
of Traditional Chinese Medicine and Microecology Researh Center, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, China
| | - Ding Qu
- Affiliated
Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China
- Multi-component
of Traditional Chinese Medicine and Microecology Researh Center, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, China
| | - Jiege Huo
- Affiliated
Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China
- Jiangsu
Clinical Innovation Center of Digestive Cancer of Traditional Chinese
Medicine, Nanjing 210028, China
| | - Yan Chen
- Affiliated
Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210028, China
- Jiangsu
Clinical Innovation Center of Digestive Cancer of Traditional Chinese
Medicine, Nanjing 210028, China
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9
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Wu B, Zheng M, Zhuo MP, Zhao YD, Su Y, Fan JZ, Luo P, Gu LF, Che ZL, Wang ZS, Wang XD. Organic Bilayer Heterostructures with Built-In Exciton Conversion for 2D Photonic Encryption. Adv Mater 2023; 35:e2306541. [PMID: 37794632 DOI: 10.1002/adma.202306541] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 09/21/2023] [Indexed: 10/06/2023]
Abstract
Organic multilayer heterostructures with accurate spatial organization demonstrate strong light-matter interaction from excitonic responses and efficient carrier transfer across heterojunction interfaces, which are considered as promising candidates toward advanced optoelectronics. However, the precise regulation of the heterojunction surface area for finely adjusting exciton conversion and energy transfer is still formidable. Herein, organic bilayer heterostructures (OBHs) with controlled face-to-face heterojunction via a stepwise seeded growth strategy, which is favorable for efficient exciton propagation and conversion of optical interconnects are designed and synthesized. Notably, the relative position and overlap length ratio of component microwires (LDSA /LBPEA = 0.39-1.15) in OBHs are accurately regulated by modulating the crystallization time of seeded crystals, resulting into a tailored heterojunction surface area (R = Loverlap /LBPEA = 37.6%-65.3%). These as-prepared OBHs present the excitation position-dependent waveguide behaviors for optical outcoupling characteristics with tunable emission colors and intensities, which are applied into two-dimensional (2D) photonic barcodes. This strategy opens a versatile avenue to purposely design OBHs with tailored heterojunctions for efficient energy transfer and exciton conversion, facilitating the application possibilities of advanced integrated optoelectronics.
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Affiliation(s)
- Bin Wu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Min Zheng
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, China
| | - Ming-Peng Zhuo
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, China
| | - Yu-Dong Zhao
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Yang Su
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Jian-Zhong Fan
- School of Physics and Electronics, Shandong Normal University, Jinan, 250014, China
| | - Peng Luo
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Lin-Feng Gu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Zong-Lu Che
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, China
| | - Zuo-Shan Wang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Xue-Dong Wang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, China
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10
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Liang B, Wu Y, Zhang J, Hao S, Li F. The cross-cultural adaptation and psychometric properties of the Graded Chronic Pain Scale-Revised-Simplified Chinese version. PLoS One 2023; 18:e0292747. [PMID: 37816024 PMCID: PMC10564124 DOI: 10.1371/journal.pone.0292747] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 09/27/2023] [Indexed: 10/12/2023] Open
Abstract
Chronic pain is a prevalent issue worldwide and is a significant contributor to human suffering and disability. The Graded Chronic Pain Scale-Revised has exhibited favorable reliability and validity. However, its applicability yet to be explored in China. We aimed to create a simplified Chinese version of the Graded Chronic Pain Scale-Revised for chronic pain patients by conducting cross-cultural adaptation and psychometric evaluation. This study employs a two- phase design. In phase 1, the Graded Chronic Pain Scale-Revised was cross-culturally translated and adapted in accordance with international guidelines. In phase 2, the simplified Chinese version of the Graded Chronic Pain Scale-Revised was administered to 417 participants along with Numerical Rating Scale to assess its psychometric properties. The final analysis consisted of data from 376 participants. The scale had a Cronbach's α coefficient of 0.944. Moreover, the scale exhibited excellent content validity and was divided into two dimensions: identifying high impact chronic pain; and the Pain, Enjoyment, and General Activities subscale. Exploratory and confirmatory factor analyses revealed that these dimensions had a good model fit. Additionally, the simplified Chinese version of the Graded Chronic Pain Scale-Revised demonstrated good convergent and discriminant validity. The receiver operating characteristic curve demonstrated that grades 2 and 3 had a good predictive effect on limiting participants' work ability, and the area under the receiver operating characteristic curve was equal to 0.91. The present study demonstrates the successful adaptation of the Graded Chronic Pain Scale-Revised into Simplified Chinese, with the revised version exhibiting favorable psychometric properties. This scale addresses the shortcomings of domestic chronic pain grading assessment tools, providing a valuable instrument for evaluating the severity of chronic pain in Chinese clinical practice and serving as a reference and basis for other research related to chronic pain.
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Affiliation(s)
- Bing Liang
- School of Nursing, Jilin University, Changchun, China
| | - Yuejin Wu
- School of Nursing, Jilin University, Changchun, China
| | - Jiaxin Zhang
- School of Nursing, Jilin University, Changchun, China
| | - Shumin Hao
- School of Nursing, Jilin University, Changchun, China
| | - Feng Li
- School of Nursing, Jilin University, Changchun, China
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11
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Rao Y, Hu Y, Wang S, Zhao S, Zhou S. Numerical Simulation Study on the Flow Field and Separation Efficiency by Built-In Twisted Tape in the Hydrocyclone. ACS Omega 2023; 8:26301-26316. [PMID: 37521627 PMCID: PMC10373205 DOI: 10.1021/acsomega.3c02549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 06/29/2023] [Indexed: 08/01/2023]
Abstract
Aiming at the separation of mud and sand in natural gas hydrate, for the designed built-in twisted tape hydrocyclone, the numerical simulation method was used to study the effects of different types of built-in twisted tape and operating conditions on the internal flow field of the hydrocyclone, separation efficiency, and influence of hydrate particle size distribution. The research results show that the built-in twisted tape has the same swirling direction as the hydrocyclone, which is beneficial to improving the swirling intensity, and the ability to carry and separate solid particles is obviously enhanced. The built-in twisted tape hydrocyclone with a length of 300 mm has better separation efficiency and internal flow field stability. By changing the conditions of the inlet velocity and the initial concentration of hydrate particles, the comparison shows that when the inlet velocity is 8 m/s, the volume of mud and sand is 25%, the initial concentration of hydrate particles is 15%, and the built-in tape is 300 mm long. The tape hydrocyclone has the best separation efficiency. Compared with the basic hydrocyclone, the built-in twisted tape hydrocyclone with a length of 300 mm increases the separation efficiency of mud and sand by 7.49%, while the pressure drop only increases by 2.67%, showing the superiority of the built-in twisted tape structure.
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Affiliation(s)
- Yongchao Rao
- Jiangsu
Key Laboratory of Oil−Gas Storage and Transportation Technology, Changzhou University, Changzhou, Jiangsu 213164, China
- School
of Petroleum and Gas Engineering, School of Energy, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Yong Hu
- Jiangsu
Key Laboratory of Oil−Gas Storage and Transportation Technology, Changzhou University, Changzhou, Jiangsu 213164, China
- School
of Petroleum and Gas Engineering, School of Energy, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Shuli Wang
- School
of Energy, Quanzhou Vocational and Technical
University, Quanzhou, Fujian 362268, China
| | - Shuhua Zhao
- Jiangsu
Key Laboratory of Oil−Gas Storage and Transportation Technology, Changzhou University, Changzhou, Jiangsu 213164, China
- School
of Petroleum and Gas Engineering, School of Energy, Changzhou University, Changzhou, Jiangsu 213164, China
| | - Shidong Zhou
- Jiangsu
Key Laboratory of Oil−Gas Storage and Transportation Technology, Changzhou University, Changzhou, Jiangsu 213164, China
- School
of Petroleum and Gas Engineering, School of Energy, Changzhou University, Changzhou, Jiangsu 213164, China
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12
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Cui Y, Li J, Zhang P, Yin D, Wang Z, Dai J, Wang W, Zhang E, Guo R. B4GALT1 promotes immune escape by regulating the expression of PD-L1 at multiple levels in lung adenocarcinoma. J Exp Clin Cancer Res 2023; 42:146. [PMID: 37303063 DOI: 10.1186/s13046-023-02711-3] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 05/15/2023] [Indexed: 06/13/2023] Open
Abstract
BACKGROUND Invasive adenocarcinoma (IAC), which is typically preceded by minimally invasive adenocarcinoma (MIA), is the dominant pathological subtype of early-stage lung adenocarcinoma (LUAD). Identifying the molecular events underlying the progression from MIA to IAC may provide a crucial perspective and boost the exploration of novel strategies for early-stage LUAD diagnosis and treatment. METHODS Transcriptome sequencing of four pairs of MIA and IAC tumours obtained from four multiple primary lung cancer patients was performed to screen out beta-1,4-galactosyltransferase1 (B4GALT1). Function and mechanism experiments in vitro and in vivo were performed to explore the regulatory mechanism of B4GALT1-mediated immune evasion by regulating programmed cell death ligand 1 (PD-L1). RESULTS B4GALT1, a key gene involved in N-glycan biosynthesis, was highly expressed in IAC samples. Further experiments revealed that B4GALT1 regulated LUAD cell proliferation and invasion both in vitro and in vivo and was related to the impaired antitumour capacity of CD8 + T cells. Mechanistically, B4GALT1 directly mediates the N-linked glycosylation of PD-L1 protein, thus preventing PD-L1 degradation at the posttranscriptional level. In addition, B4GALT1 stabilized the TAZ protein via glycosylation, which activated CD274 at the transcriptional level. These factors lead to lung cancer immune escape. Importantly, inhibition of B4GALT1 increased CD8 + T-cell abundance and activity and enhanced the antitumour immunity of anti-PD-1 therapy in vivo. CONCLUSION B4GALT1 is a critical molecule in the development of early-stage LUAD and may be a novel target for LUAD intervention and immunotherapy.
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Affiliation(s)
- Yanan Cui
- Department of Oncology, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, P. R. China
| | - Jun Li
- Department of Oncology, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, P. R. China
| | - Pengpeng Zhang
- Department of Thoracic Surgery, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, P. R. China
| | - Dandan Yin
- Clinical Research Center, The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Zhong Fu Road, Gulou District, Nanjing, Jiangsu, 210003, P. R. China
| | - Ziyu Wang
- Department of Pathology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Jiali Dai
- Department of Oncology, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, P. R. China
| | - Wei Wang
- Department of Thoracic Surgery, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, P. R. China.
| | - Erbao Zhang
- Department of Epidemiology, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, 211166, China.
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Medicine, Nanjing Medical University, Nanjing, 211166, China.
| | - Renhua Guo
- Department of Oncology, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, P. R. China.
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13
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Xiao SQ, Cheng M, Wang L, Cao J, Fang L, Zhou XP, He XJ, Hu YF. The role of apoptosis in the pathogenesis of osteoarthritis. Int Orthop 2023:10.1007/s00264-023-05847-1. [PMID: 37294429 DOI: 10.1007/s00264-023-05847-1] [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] [Received: 04/02/2022] [Accepted: 05/17/2023] [Indexed: 06/10/2023]
Abstract
PURPOSE Apoptosis is an important physiological process, making a great difference to development and tissue homeostasis. Osteoarthritis (OA) is a chronic joint disease characterized by degeneration and destruction of articular cartilage and bone hyperplasia. This purpose of this study is to provide an updated review of the role of apoptosis in the pathogenesis of osteoarthritis. METHODS A comprehensive review of the literature on osteoarthritis and apoptosis was performed, which mainly focused on the regulatory factors and signaling pathways associated with chondrocyte apoptosis in osteoarthritis and other pathogenic mechanisms involved in chondrocyte apoptosis. RESULTS Inflammatory mediators such as reactive oxygen species (ROS), nitric oxide (NO), IL-1β, tumor necrosis factor-α (TNF-α), and Fas are closely related to chondrocyte apoptosis. NF-κB signaling pathway, Wnt signaling pathway, and Notch signaling pathway activate proteins and gene targets that promote or inhibit the progression of osteoarthritis disease, including chondrocyte apoptosis and ECM degradation. Long non-coding RNAs (LncRNAs) and microRNAs (microRNAs) have gradually replaced single and localized research methods and become the main research approaches. In addition, the relationship between cellular senescence, autophagy, and apoptosis was also briefly explained. CONCLUSION This review offers a better molecular delineation of apoptotic processes that may help in designing new therapeutic options for OA treatment.
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Affiliation(s)
- Si-Qi Xiao
- Department of Rheumatology, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, China
- Jiangsu Province Hospital of Chinese medicine, Nanjing, 210029, China
| | - Miao Cheng
- Department of Rheumatology, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, China
- Jiangsu Province Hospital of Chinese medicine, Nanjing, 210029, China
| | - Lei Wang
- Jiangsu Province Hospital of Chinese medicine, Nanjing, 210029, China
| | - Jing Cao
- Jiangsu Province Hospital of Chinese medicine, Nanjing, 210029, China
| | - Liang Fang
- Department of Rheumatology, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, China
- Jiangsu Province Hospital of Chinese medicine, Nanjing, 210029, China
| | - Xue-Ping Zhou
- The First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Xiao-Jin He
- Department of Rheumatology, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, China.
- Jiangsu Province Hospital of Chinese medicine, Nanjing, 210029, China.
| | - Yu-Feng Hu
- The First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
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14
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Wang S, Xu S, Lu L, Sun L. Roll-Out Deployment Process Analysis of a Fiber Reinforced Polymer (FRP) Composite Tape-Spring Boom. Polymers (Basel) 2023; 15:polym15112455. [PMID: 37299254 DOI: 10.3390/polym15112455] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 05/24/2023] [Accepted: 05/24/2023] [Indexed: 06/12/2023] Open
Abstract
Deployable extendable booms are widely used in aerospace technology due to many advantages they have, such as high folded-ratio, lightweight and self-deployable properties. A bistable FRP composite boom can not only extend its tip outwards with a corresponding rotation speed on the hub, but can also drive the hub rolling outwards with a fixed boom tip, which is commonly called roll-out deployment. In a bistable boom's roll-out deployment process, the second stability can keep the coiled section from chaos without introducing a controlling mechanism. Because of this, the boom's roll-out deployment velocity is not under control, and a high moving speed at the end will give the structure a big impact. Therefore, predicting the velocity in this whole deployment process is necessary to be researched. This paper aims to analyze the roll-out deployment process of a bistable FRP composite tape-spring boom. First, based on the Classical Laminate Theory, a dynamic analytical model of a bistable boom is established through the energy method. Afterwards, an experiment is introduced to produce some practical verification for comparison with the analytical results. According to the comparison with the experiment, the analytical model is verified for predicting the deployment velocity when the boom is relatively short, which can cover most booms using CubeSats. Finally, a parametric study reveals the relationship between the boom properties and the deployment behaviors. The research of this paper will give some guidance to the design of a composite roll-out deployable boom.
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Affiliation(s)
- Sicong Wang
- School of Mechanical and Electrical Engineering, Soochow University, Suzhou 215137, China
| | - Shuhong Xu
- School of Engineering, Applied Technology Collage of Soochow University, Suzhou 215325, China
| | - Lei Lu
- School of Mechanical and Electrical Engineering, Soochow University, Suzhou 215137, China
| | - Lining Sun
- School of Mechanical and Electrical Engineering, Soochow University, Suzhou 215137, China
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15
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Jin Y, Petrescu FIT, Wang Y, Li X, Li Y, Shi G. Spiropyran-Based Soft Substrate with SPR, Anti-Reflection and Anti-NRET for Enhanced Visualization/Fluorescence Dual Response to Metal Ions. Materials (Basel) 2023; 16:ma16103746. [PMID: 37241374 DOI: 10.3390/ma16103746] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 05/09/2023] [Accepted: 05/11/2023] [Indexed: 05/28/2023]
Abstract
The photoluminescence of modified spiropyran on solid surfaces is poor, and the fluorescence intensity of its MC form is weak, which affects its application in the field of sensing. In this work, a PMMA layer containing Au nanoparticles and a spiropyran monomolecular layer are coated on the surface of a PDMS substrate with inverted micro-pyramids successively by means of interface assembly and soft lithography, and the overall structure is similar to insect compound eyes. The anti-reflection effect of the bioinspired structure, the SPR (surface plasmon resonance) effect of the Au nanoparticles and the anti-NRET (non-radiation energy transfer) effect of the PMMA isolation layer raise the fluorescence enhancement factor of the composite substrate vs. the surface MC form of spiropyran to 5.06. In the process of metal ion detection, the composite substrate can achieve both colorimetric and fluorescence response, and the detection limit for Zn2+ can reach 0.281 μM. However, at the same time, the lack of the ability to recognize specific metal ions is expected to be further improved by the modification of spiropyran.
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Affiliation(s)
- Yuebo Jin
- The Key Laboratory of Synthetic and Biotechnology Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | | | - Yuan Wang
- The Key Laboratory of Synthetic and Biotechnology Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Xin Li
- The Key Laboratory of Synthetic and Biotechnology Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Ying Li
- The Key Laboratory of Synthetic and Biotechnology Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Gang Shi
- The Key Laboratory of Synthetic and Biotechnology Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
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16
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Chen J, Jiang Z, Huang H, Li M, Bai Z, Kuai Y, Wei L, Liu N, Li X, Lu G, Li Y. The outcome of acute kidney injury substages based on urinary cystatin C in critically ill children. Ann Intensive Care 2023; 13:23. [PMID: 36976367 PMCID: PMC10050666 DOI: 10.1186/s13613-023-01119-8] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 03/15/2023] [Indexed: 03/29/2023] Open
Abstract
BACKGROUND The concept of acute kidney injury (AKI) substages has been recommended to better phenotype AKI and identify high-risk patient groups and therefore improve the diagnostic accuracy of AKI. However, there remains a gap between the recommendation and the clinical application. The study aimed to explore the incidence of AKI substages based on a sensitive AKI biomarker of urinary cystatin C (uCysC), and to determine whether AKI substages were relevant with respect to outcome in critically ill children. RESULTS The multicenter cohort study enrolled 793 children in pediatric intensive care unit (PICU) of four tertiary hospitals in China. Children were classified as non-AKI, sub-AKI and AKI substages A and B according to uCysC level at PICU admission. Sub-AKI was defined by admission uCysC level ≥ 1.26 mg/g uCr in children not meeting the KDIGO criteria of AKI. In children who fulfilled KDIGO criteria, those with uCysC < 1.26 was defined as AKI substage A, and with ≥ 1.26 defined as AKI substage B. The associations of AKI substages with 30-day PICU mortality were assessed. 15.6% (124/793) of patients met the definition of sub-AKI. Of 180 (22.7%) patients with AKI, 90 (50%) had uCysC-positive AKI substage B and were more likely to have classical AKI stage 3, compared to substage A. Compared to non-AKI, sub-AKI and AKI substages A and B were risk factors significantly associated with mortality, and the association of sub-AKI (adjusted hazard ratio HR = 2.42) and AKI substage B (adjusted HR = 2.83) with mortality remained significant after adjustment for confounders. Moreover, AKI substage B had increased risks of death as compared with sub-AKI (HR = 3.10) and AKI substage A (HR = 3.19). CONCLUSIONS Sub-AKI defined/based on uCysC occurred in 20.2% of patients without AKI and was associated with a risk of death close to patients with AKI substage A. Urinary CysC-positive AKI substage B occurred in 50% of AKI patients and was more likely to have classical AKI stage 3 and was associated with the highest risk of mortality.
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Affiliation(s)
- Jiao Chen
- Department of Nephrology and Immunology, Children's Hospital of Soochow University, Suzhou, Jiangsu Province, China
- Pediatric Intensive Care Unit, Children's Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Zhen Jiang
- Pediatric Intensive Care Unit, Xuzhou Children's Hospital, Xuzhou, Jiangsu Province, China
| | - Hui Huang
- Department of Nephrology and Immunology, Children's Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Min Li
- Pediatric Intensive Care Unit, AnHui Provincial Children's Hospital, Hefei, Anhui Province, China
| | - Zhenjiang Bai
- Pediatric Intensive Care Unit, Children's Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Yuxian Kuai
- Department of Nephrology and Immunology, Children's Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Lin Wei
- Department of Nephrology and Immunology, Children's Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Ning Liu
- Department of Nephrology and Immunology, Children's Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Xiaozhong Li
- Department of Nephrology and Immunology, Children's Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Guoping Lu
- Pediatric Intensive Care Unit, Children's Hospital of Fudan University, Shanghai, China
| | - Yanhong Li
- Department of Nephrology and Immunology, Children's Hospital of Soochow University, Suzhou, Jiangsu Province, China.
- Institute of Pediatric Research, Children's Hospital of Soochow University, Suzhou, Jiangsu Province, China.
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Xu J, Chen Y, Wang H, Li Y, Li L, Ren J, Sun Y, Liu W. Altered Neural Network Connectivity Predicts Depression in de novo Parkinson’s Disease. Front Neurosci 2022; 16:828651. [PMID: 35310104 PMCID: PMC8931029 DOI: 10.3389/fnins.2022.828651] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 01/28/2022] [Indexed: 11/15/2022] Open
Abstract
Background Depression, one of the most frequent non-motor symptoms in Parkinson’s disease (PD), was proposed to be related to neural network dysfunction in advanced PD patients. However, the underlying mechanisms in the early stage remain unclear. The study was aimed to explore the alterations of large-scale neural networks in de novo PD patients with depression. Methods We performed independent component analysis (ICA) on the data of resting-state functional magnetic resonance imaging from 21 de novo PD patients with depression (dPD), 34 de novo PD patients without depression (ndPD), and 43 healthy controls (HCs) to extract functional networks. Intranetwork and internetwork connectivity was calculated for comparison between groups, correlation analysis, and predicting the occurrence of depression in PD. Results We observed an ordered decrease of connectivity among groups within the ventral attention network (VAN) (dPD < ndPD < HCs), mainly located in the left middle temporal cortex. Besides, dPD patients exhibited hypoconnectivity between the auditory network (AUD) and default mode network (DMN) or VAN compared to ndPD patients or healthy controls. Correlation analysis revealed that depression severity was negatively correlated with connectivity value within VAN and positively correlated with the connectivity value of AUD-VAN in dPD patients, respectively. Further analysis showed that the area under the curve (AUC) for dPD prediction was 0.863 when combining the intranetwork connectivity in VAN and internetwork connectivity in AUD-DMN and AUD-VAN. Conclusion Our results demonstrated that early dPD may be associated with abnormality of attention bias and especially auditory attention processing. Altered neural network connectivity is expected to be a potential neuroimaging biomarker to predict depression in PD.
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Affiliation(s)
- Jianxia Xu
- Department of Neurology, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Yubing Chen
- Department of Neurology, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Hui Wang
- Department of Neurology, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
- Department of Neurology, Lianyungang Hospital of Traditional Chinese Medicine, Lianyungang, China
| | - Yuqian Li
- Department of Neurology, Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, China
| | - Lanting Li
- Department of Neurology, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Jingru Ren
- Department of Neurology, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Yu Sun
- International Laboratory for Children’s Medical Imaging Research, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing, China
| | - Weiguo Liu
- Department of Neurology, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
- *Correspondence: Weiguo Liu,
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Yin L, Zhang Y, Wang L, Wu H, Azi F, Tekliye M, Zhou J, Liu X, Dong M, Xia X. Neuroprotective potency of a soy whey fermented by Cordyceps militaris SN-18 against hydrogen peroxide-induced oxidative injury in PC12 cells. Eur J Nutr 2022; 61:779-792. [PMID: 34553258 DOI: 10.1007/s00394-021-02679-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 09/11/2021] [Indexed: 11/26/2022]
Abstract
PURPOSE Soy whey is a byproduct generated from the processing of several soybean products. Its valorization has continued to attract significant research interest in recent times due to the nutritional and bioactive potency of its chemical composition. Herein, the neuroprotective potency of a soy whey fermented by Cordyceps militaris SN-18 against hydrogen peroxide (H2O2)-induced oxidative injury in PC12 cells was investigated. METHODS The phenolic compositions were analyzed by high-performance liquid chromatography. Antioxidant activities were assessed by ABTS•+ scavenging assay, DPPH radical scavenging assay, reducing power assay, and ferric reducing antioxidant power assay. The neuroprotective effects of fermented soy whey (FSW) were investigated based on the oxidative injury model in PC12 cells. RESULTS FSW possessed higher total phenolic content and antioxidant activities compared with unfermented soy whey (UFSW) and that most of the isoflavone glycosides were hydrolyzed into their corresponding aglycones during fermentation. The extract from FSW exhibited a greater protective effect on PC12 cells against oxidative injury by promoting cell proliferation, restoring cell morphology, inhibiting lactic dehydrogenase leakage, reducing reactive oxygen species levels, and enhancing antioxidant enzyme activities compared with that from UFSW. Additionally, cell apoptosis was significantly inhibited by FSW through down-regulation of caspase-3, caspase-9, and Bax and up-regulation of Bcl-2 and Bcl-xL. S-phase cell arrest was attenuated by FSW through increasing cyclin A, CDK1 and CDK2, and decreasing p21 protein. CONCLUSION Fermentation with C. militaris SN-18 could significantly improve the bioactivity of soy whey by enhancing the ability of nerve cells to resist oxidative damage.
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Affiliation(s)
- Liqing Yin
- Institute of Agricultural Product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing, People's Republic of China
- College of Food Science and Technology, Nanjing Agricultural University, 1 Weigang Road, Nanjing, 210095, Jiangsu, People's Republic of China
| | - Yongzhu Zhang
- College of Food Science and Technology, Nanjing Agricultural University, 1 Weigang Road, Nanjing, 210095, Jiangsu, People's Republic of China
| | - Lixia Wang
- College of Food Science and Technology, Nanjing Agricultural University, 1 Weigang Road, Nanjing, 210095, Jiangsu, People's Republic of China
| | - Han Wu
- Institute of Agricultural Product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing, People's Republic of China
| | - Fidelis Azi
- College of Food Science and Technology, Nanjing Agricultural University, 1 Weigang Road, Nanjing, 210095, Jiangsu, People's Republic of China
| | - Mekonen Tekliye
- College of Food Science and Technology, Nanjing Agricultural University, 1 Weigang Road, Nanjing, 210095, Jiangsu, People's Republic of China
| | - Jianzhong Zhou
- Institute of Agricultural Product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing, People's Republic of China
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, Jiangsu, People's Republic of China
| | - Xiaoli Liu
- Institute of Agricultural Product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing, People's Republic of China
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, Jiangsu, People's Republic of China
| | - Mingsheng Dong
- College of Food Science and Technology, Nanjing Agricultural University, 1 Weigang Road, Nanjing, 210095, Jiangsu, People's Republic of China
| | - Xiudong Xia
- Institute of Agricultural Product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing, People's Republic of China.
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, Jiangsu, People's Republic of China.
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Ju M, Ge X, Di X, Zhang Y, Liang L, Shi Y. Diagnostic, Prognostic, and Recurrence Monitoring Value of Plasma CYFRA21-1 and NSE Levels in Patients With Esophageal Squamous Cell Carcinoma. Front Oncol 2022; 11:789312. [PMID: 35127494 PMCID: PMC8813736 DOI: 10.3389/fonc.2021.789312] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 12/31/2021] [Indexed: 01/06/2023] Open
Abstract
This study was aimed to evaluate the clinical values of single markers and combination in the diagnosis, short-term efficacy and recurrence risk assessment of esophageal squamous cell carcinoma (ESCC).
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Affiliation(s)
- Mengyang Ju
- Department of Radiation Oncology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Xiaolin Ge
- Department of Radiotherapy, Jiangsu Provincial People’s Hospital, Nanjing, China
| | - Xiaoke Di
- Department of Radiotherapy, Jiangsu Provincial People’s Hospital, Nanjing, China
| | - Yumeng Zhang
- Department of Oncology, Graduate School of Nanjing Medical University, Nanjing, China
| | - Liang Liang
- Department of Oncology, The People’s Hospital of Jurong City, Zhenjiang, China
| | - Yujing Shi
- Department of Oncology, The People’s Hospital of Jurong City, Zhenjiang, China
- *Correspondence: Yujing Shi,
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Wang J, Hu L, Zhou X, Zhang S, Qiao Q, Xu L, Tang S. Three-Dimensional Porous Network Electrodes with Cu(OH) 2 Nanosheet/Ni 3S 2 Nanowire 2D/1D Heterostructures for Remarkably Cycle-Stable Supercapacitors. ACS Omega 2021; 6:34276-34285. [PMID: 34963913 PMCID: PMC8697002 DOI: 10.1021/acsomega.1c03507] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 08/20/2021] [Indexed: 06/14/2023]
Abstract
Developing advanced electrode materials with highly improved charge and mass transfer is critical to obtain high specific capacities and long-term cycle life for energy storage. Herein, three-dimensionally (3D) porous network electrodes with Cu(OH)2 nanosheets/Ni3S2 nanowire 2D/1D heterostructures are rationally fabricated. Different from traditional surface deposition, the 1D/2D heterostructure network is obtained by in situ hydrothermal chemical etching of the surface layer of nickel foam (NF) ligaments. The Cu(OH)2/Ni3S2@NF electrode delivers a high specific capacity (1855 F g-1 at 2 mA cm-2) together with a remarkable stability. The capacity retention of the electrode is over 110% after 35,000 charge/discharge cycles at 20 mA cm-2. The improved performance is attributed to the enhanced electron transfer between 1D Ni3S2 and 2D Cu(OH)2, highly accessible sites of 3D network for electrolyte ions, and strong mechanical bonding and good electrical connection between Cu(OH)2/Ni3S2 active materials and the conductive NF. Especially, the unique 1D/2D heterostructure alleviates structural pulverization during the ion insertion/desertion process. A symmetric device applying the Cu(OH)2/Ni3S2@NF electrode exhibits a remarkable cycling stability with the capacitance retention maintaining over 98% after 30,000 cycles at 50 mA cm-2. Therefore, the outstanding performance promises the architectural 1D/2D heterostructure to offer potential applications in future electrochemical energy storage.
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Affiliation(s)
- Jiansen Wang
- Key
National Laboratory of Solid State Microstructures, Department of
Materials Science and Engineering, Collaborative Innovation Center
of Advanced Microstructures, Jiangsu Key Laboratory of Artificial
Functional Materials, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, P. R. China
| | - Libing Hu
- Key
National Laboratory of Solid State Microstructures, Department of
Materials Science and Engineering, Collaborative Innovation Center
of Advanced Microstructures, Jiangsu Key Laboratory of Artificial
Functional Materials, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, P. R. China
- Key
Haian Institute of High-Tech Research, Nanjing
University, Jiangsu 226600, P. R. China
| | - Xiaoya Zhou
- Key
National Laboratory of Solid State Microstructures, Department of
Materials Science and Engineering, Collaborative Innovation Center
of Advanced Microstructures, Jiangsu Key Laboratory of Artificial
Functional Materials, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, P. R. China
- Key
Haian Institute of High-Tech Research, Nanjing
University, Jiangsu 226600, P. R. China
| | - Sheng Zhang
- Key
National Laboratory of Solid State Microstructures, Department of
Materials Science and Engineering, Collaborative Innovation Center
of Advanced Microstructures, Jiangsu Key Laboratory of Artificial
Functional Materials, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, P. R. China
- Key
Haian Institute of High-Tech Research, Nanjing
University, Jiangsu 226600, P. R. China
| | - Qingshan Qiao
- Key
National Laboratory of Solid State Microstructures, Department of
Materials Science and Engineering, Collaborative Innovation Center
of Advanced Microstructures, Jiangsu Key Laboratory of Artificial
Functional Materials, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, P. R. China
- Key
Haian Institute of High-Tech Research, Nanjing
University, Jiangsu 226600, P. R. China
| | - Lei Xu
- Key
Institute of Agricultural Facilities and Equipment, Jiangsu Academy
of Agricultural Sciences; Key Laboratory for Protected Agricultural
Engineering in the Middle and Lower Reaches of Yangtze River, Ministry of Agriculture and Rural Affairs, Nanjing 210014, P. R. China
| | - Shaochun Tang
- Key
National Laboratory of Solid State Microstructures, Department of
Materials Science and Engineering, Collaborative Innovation Center
of Advanced Microstructures, Jiangsu Key Laboratory of Artificial
Functional Materials, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, P. R. China
- Key
Haian Institute of High-Tech Research, Nanjing
University, Jiangsu 226600, P. R. China
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Abstract
Elimination of schistosomiasis as a public health problem among all disease-endemic countries in 2030 is an ambitious goal. Recent achievements resulting from mass drug administration (MDA) with praziquantel is promising but may need to be complemented with also other means. Schistosomiasis was highly prevalent in China before the initiation of the national schistosomiasis control program in the mid-1950s, and, at that time, the country bore the world's highest burden of schistosomiasis. The concerted control efforts, upheld without interruption for more than a half century, have resulted in elimination of the disease as a public health problem in China as of 2015. Here, we describe the current status of schistosomiasis in China, analyze the potential challenges affecting schistosomiasis elimination, and propose the future research needs and priorities for the country, aiming to provide more universal insights into the structures needed for a global schistosomiasis elimination encompassing also other endemic regions.
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Affiliation(s)
- Wei Wang
- Key Laboratory of National Health Commission of Parasitic Disease Prevention and Control, Jiangsu Provincial Key Laboratory of Parasites and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu Province, China
| | - Robert Bergquist
- Ingerod, Brastad, Sweden (formerly with the UNICEF/UNDP/World Bank/WHO Special Programme for Research and Training in Tropical Diseases), World Health Organization, Geneva, Switzerland
| | - Charles H. King
- Center for Global Health and Diseases, Case Western Reserve University, Cleveland, Ohio, United States of America
| | - Kun Yang
- Key Laboratory of National Health Commission of Parasitic Disease Prevention and Control, Jiangsu Provincial Key Laboratory of Parasites and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu Province, China
- Center for Global Health, Nanjing Medical University, Nanjing, Jiangsu Province, China
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Abstract
Despite favorable effects from telemedicine (TM) on cardiovascular diseases, outcome and comparative impact of TM on heart failure (HF) adults remain controversial. A meta-analysis was conducted to summarize the evidence from existing randomized controlled trials (RCTs) which compared potential impact of TM on HF with conventional healthcare. TM mainly included structure telephone support (STS), involving interactive vocal response monitoring and telemonitoring. PubMed, MEDLINE, EMBASE, and the Cochrane Library were searched to identify RCTs to fit our analysis (1999 to 2018). Odds ratio (OR) with its 95% confidence interval (CI) was used. Sensitivity analysis, subgroup analysis, and tests for publication bias were conducted. Heterogeneities were also evaluated by I2 tests. A total of 29 RCTs consisting of 10,981 HF adults were selected for meta-level synthesis, with follow-up range of 1-36 months. Telemonitoring is associated with the reduction in total number of all-cause hospitalization (OR 0.82, 95% CI 0.73-0.91, P = 0.0004) and cardiac hospitalization (OR 0.83, 95% CI 0.72-0.95, P = 0.007). Telemonitoring resulted in statistically significant risk reduction of all-cause mortality (OR 0.75, 95% CI 0.62-0.90, P = 0.003). However, the OR of HF-related mortality (OR 0.84, 95% CI 0.61-1.16, P = 0.28) is not significantly distinguishable from that of conventional healthcare. Receiving STS interventions is likely to reduce the hospitalization for all causes (OR 0.86, 95% CI 0.78-0.96, P = 0.006, I2 = 6%) and the hospitalization due to HF (OR 0.74, 95% CI 0.65-0.85, P < 0.0001, I2 = 0%), compared with interventions from conventional healthcare. OR of all-cause STS mortality (OR 0.96, 95% CI 0.83-1.11, P = 0.55) was identified in meta-analyses of eight cases. OR of STS cardiac mortality (OR 0.54, 95% CI 0.34-0.86, P = 0.009) was identified in meta-analyses of three cases. This work represents the comprehensive application of network meta-analysis to examine the comparative effectiveness of telemedicine interventions in improving HF patient outcomes. Compared with conventional healthcare, telemedicine systems with medical support prove to be more effective for HF adults, particularly in reducing all-cause hospitalization, cardiac hospitalization, all-cause mortality, cardiac mortality, and length of stay. While further research is required to confirm these observational findings and identify optimal telemedicine strategies and the duration of follow-up for which it confers benefits.
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Affiliation(s)
- Ye Zhu
- Clinical Medical College of Yangzhou University, Yangzhou, 225001, Jiangsu, China
- Department of Cardiology, Northern Jiangsu People's Hospital, Yangzhou, China
| | - Xiang Gu
- Clinical Medical College of Yangzhou University, Yangzhou, 225001, Jiangsu, China.
- Department of Cardiology, Northern Jiangsu People's Hospital, Yangzhou, China.
| | - Chao Xu
- Department of Biostatistics and Epidemiology, University of Oklahoma Health Science Center, Oklahoma City, OK, 73104, USA
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Yin D, Tang J, Bai R, Yin S, Jiang M, Kan Z, Li H, Wang F, Li C. Cobalt Phosphide (Co 2P) with Notable Electrocatalytic Activity Designed for Sensitive and Selective Enzymeless Bioanalysis of Hydrogen Peroxide. Nanoscale Res Lett 2021; 16:11. [PMID: 33438118 PMCID: PMC7803862 DOI: 10.1186/s11671-020-03469-9] [Citation(s) in RCA: 6] [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] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 12/20/2020] [Indexed: 06/12/2023]
Abstract
In this work, cobalt phosphide nanoparticles (Co2P NPs) were prepared by simple and mild hydrothermal method without the use of harmful phosphorous source. The morphological structure and surface component of Co2P were characterized by transmission electron microscopy, X-ray diffraction and X-ray photoelectron spectroscopy measurements. Considering the excellent electrocatalytic reduction activity and good electrical conductivity of transition-metal phosphide, we fabricated Co2P NPs on indium tin oxide (ITO) substrate (Co2P/ITO) for H2O2 detection. The Co2P/ITO transducer displayed a rapid amperometric response less than 5 s, a broader response range from 0.001 to 10.0 mM and a low detection limit of 0.65 μM. In addition, the non-enzymatic Co2P/ITO sensor showed outstanding selectivity, reproducibility, repeatability and stability, all of which qualified the Co2P/ITO electrode for quite a reliable and promising biosensor for H2O2 sensing.
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Affiliation(s)
- Donghang Yin
- Key Laboratory of Biomedical Functional Materials, School of Science, China Pharmaceutical University, Nanjing, 211198 People’s Republic of China
| | - Junyan Tang
- Key Laboratory of Biomedical Functional Materials, School of Science, China Pharmaceutical University, Nanjing, 211198 People’s Republic of China
| | - Rongbiao Bai
- Key Laboratory of Biomedical Functional Materials, School of Science, China Pharmaceutical University, Nanjing, 211198 People’s Republic of China
| | - Shuyi Yin
- Key Laboratory of Biomedical Functional Materials, School of Science, China Pharmaceutical University, Nanjing, 211198 People’s Republic of China
| | - Mengnan Jiang
- Key Laboratory of Biomedical Functional Materials, School of Science, China Pharmaceutical University, Nanjing, 211198 People’s Republic of China
| | - Zigui Kan
- Key Laboratory of Biomedical Functional Materials, School of Science, China Pharmaceutical University, Nanjing, 211198 People’s Republic of China
| | - Hongmei Li
- Key Laboratory of Biomedical Functional Materials, School of Science, China Pharmaceutical University, Nanjing, 211198 People’s Republic of China
| | - Fei Wang
- Key Laboratory of Biomedical Functional Materials, School of Science, China Pharmaceutical University, Nanjing, 211198 People’s Republic of China
| | - Caolong Li
- Key Laboratory of Biomedical Functional Materials, School of Science, China Pharmaceutical University, Nanjing, 211198 People’s Republic of China
- Tibetan Medicine Research Institute, Tibetan Traditional Medical College, Lhasa, 850000 Tibet People’s Republic of China
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Cui XH, Hu SY, Zhu CF, Qin XH. Expression and prognostic analyses of the insulin-like growth factor 2 mRNA binding protein family in human pancreatic cancer. BMC Cancer 2020; 20:1160. [PMID: 33246429 PMCID: PMC7694419 DOI: 10.1186/s12885-020-07590-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 10/29/2020] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Despite advances in early diagnosis and treatment, cancer remains the leading cause of mortality worldwide. The insulin-like growth factor 2 mRNA binding protein (IGF2BP) family has been reported to be involved in a variety of human malignant tumours. However, little is known about their expression and prognostic value in human pancreatic cancer. Therefore, we performed a detailed cancer versus normal differential analysis. METHODS The Cancer Genome Atlas (TCGA) and Gene Expression Profiling Interactive Analysis (GEPIA) databases were used to analyse the mRNA expression levels of the IGF2BP family in various cancers, including pancreatic cancer. Then, the LinkedOmics and GEPIA databases were used to assess the relation between the expression levels of IGF2BPs and overall survival (OS). Then, univariate and multivariate Cox regression analyses were performed, and subgroups based on grade and stage were analysed. The signalling pathways associated with IGF2BP2 and IGF2BP3 were then investigated via gene set enrichment analysis (GSEA). RESULTS IGF2BP2 and IGF2BP3 were associated with each subset of OS based on grade and stage. Further clinical correlation analysis of IGF2BP2 and IGF2BP3 confirmed that IGF2BP2 and IGF2BP3 are fundamental factors in promoting pancreatic cancer progression. CONCLUSION IGF2BP2 and IGF2BP3 are key factors in promoting the progression of pancreatic cancer and are closely related to overall survival.
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Affiliation(s)
- Xiao-Han Cui
- Department of General Surgery, the Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, 68 Pohu Middle Road, Changzhou, Jiangsu, 213000, P.R. China
- Nanjing Medical University, Nanjing, Jiangsu, 211166, P.R. China
| | - Shu-Yi Hu
- Department of General Surgery, Liver Transplantation Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, P.R. China
| | - Chun-Fu Zhu
- Department of General Surgery, the Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, 68 Pohu Middle Road, Changzhou, Jiangsu, 213000, P.R. China.
| | - Xi-Hu Qin
- Department of General Surgery, the Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, 68 Pohu Middle Road, Changzhou, Jiangsu, 213000, P.R. China.
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Shoaib M, Shehzad A, Mukama O, Raza H, Niazi S, Khan IM, Ali B, Akhtar W, Wang Z. Selection of potential aptamers for specific growth stage detection of Yersinia enterocolitica. RSC Adv 2020; 10:24743-24752. [PMID: 35516186 PMCID: PMC9055141 DOI: 10.1039/d0ra00683a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 06/17/2020] [Indexed: 11/28/2022] Open
Abstract
Yersinia enterocolitica remains a threat to public health, and a sensitive detection method is a prerequisite due to its complicated diagnosis associated with slow growth. Recently, aptamer-based detection systems have played a vital role in the development of simple, rapid, sensitive, and specific detection methods. Herein, highly specific ssDNA aptamers were screened against Y. enterocolitica at the different growth stages by whole cell-SELEX. Cells at different growth stages were harvested and incubated with an ssDNA library to get an enriched pool of specific aptamer candidates. After the 10th round of SELEX, the enriched pool was sequenced and grouped into seven families based on homology and similarity of the secondary structure. Flow cytometry analysis revealed that the aptamers M1, M5, and M7 with K d values of 37.93 ± 7.88 nM, 74.96 ± 21.34 nM, and 73.02 ± 18.76 nM had the highest affinity and specificity to the target, respectively. The selected aptamers showed binding to the different growth stages of Y. enterocolitica with a significant increase in the gated fluorescence. Our aptamer selection strategy is convenient, and the developed aptamer can be useful for an accurate and reliable detection system.
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Affiliation(s)
- Muhammad Shoaib
- School of Food Science and Technology, Jiangnan University Wuxi 214122 People's Republic of China
- Synergetic Innovation Center of Food Safety and Nutrition, Jiangnan University Wuxi 214122 People's Republic of China
- National Institute of Food Science and Technology, FFNHS, University of Agriculture Faisalabad 38040 Pakistan
| | - Aamir Shehzad
- National Institute of Food Science and Technology, FFNHS, University of Agriculture Faisalabad 38040 Pakistan
- UniLaSalle, Univ. Artois, EA7519 - Transformations & Agro-ressources, Normandie Université F-76130 Mont-Saint-Aignan France
| | - Omar Mukama
- School of Food Science and Technology, Jiangnan University Wuxi 214122 People's Republic of China
- Department of Biology, College of Science and Technology, University of Rwanda Avenue de l'armée, P. O. Box: 3900 Kigali Rwanda
| | - Husnain Raza
- School of Food Science and Technology, Jiangnan University Wuxi 214122 People's Republic of China
- School of Food and Biological Engineering, Jiangsu University Zhenjiang Jiangsu 212013 People's Republic of China
- National Institute of Food Science and Technology, FFNHS, University of Agriculture Faisalabad 38040 Pakistan
| | - Sobia Niazi
- School of Food Science and Technology, Jiangnan University Wuxi 214122 People's Republic of China
- Synergetic Innovation Center of Food Safety and Nutrition, Jiangnan University Wuxi 214122 People's Republic of China
- National Institute of Food Science and Technology, FFNHS, University of Agriculture Faisalabad 38040 Pakistan
| | - Imran Mahmood Khan
- School of Food Science and Technology, Jiangnan University Wuxi 214122 People's Republic of China
- Synergetic Innovation Center of Food Safety and Nutrition, Jiangnan University Wuxi 214122 People's Republic of China
- National Institute of Food Science and Technology, FFNHS, University of Agriculture Faisalabad 38040 Pakistan
| | - Barkat Ali
- School of Food Science and Technology, Jiangnan University Wuxi 214122 People's Republic of China
| | - Wasim Akhtar
- School of Food Science and Technology, Jiangnan University Wuxi 214122 People's Republic of China
- Synergetic Innovation Center of Food Safety and Nutrition, Jiangnan University Wuxi 214122 People's Republic of China
- National Institute of Food Science and Technology, FFNHS, University of Agriculture Faisalabad 38040 Pakistan
| | - Zhouping Wang
- School of Food Science and Technology, Jiangnan University Wuxi 214122 People's Republic of China
- Synergetic Innovation Center of Food Safety and Nutrition, Jiangnan University Wuxi 214122 People's Republic of China
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Pei MS, Cao SH, Wu L, Wang GM, Xie ZH, Gu C, Zhang SL. Comparative transcriptome analyses of fruit development among pears, peaches, and strawberries provide new insights into single sigmoid patterns. BMC Plant Biol 2020; 20:108. [PMID: 32143560 PMCID: PMC7060524 DOI: 10.1186/s12870-020-2317-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 02/27/2020] [Indexed: 05/21/2023]
Abstract
BACKGROUND Pear fruit exhibit a single sigmoid pattern during development, while peach and strawberry fruits exhibit a double sigmoid pattern. However, little is known about the differences between these two patterns. RESULTS In this study, fruit weights were measured and paraffin sections were made from fruitlet to maturated pear, peach, and strawberry samples. Results revealed that both single and double sigmoid patterns resulted from cell expansion, but not cell division. Comparative transcriptome analyses were conducted among pear, peach, and strawberry fruits at five fruit enlargement stages. Comparing the genes involved in these intervals among peaches and strawberries, 836 genes were found to be associated with all three fruit enlargement stages in pears (Model I). Of these genes, 25 were located within the quantitative trait locus (QTL) regions related to fruit weight and 90 were involved in cell development. Moreover, 649 genes were associated with the middle enlargement stage, but not early or late enlargement in pears (Model II). Additionally, 22 genes were located within the QTL regions related to fruit weight and 63 were involved in cell development. Lastly, dual-luciferase assays revealed that the screened bHLH transcription factors induced the expression of cell expansion-related genes, suggesting that the two models explain the single sigmoid pattern. CONCLUSIONS Single sigmoid patterns are coordinately mediated by Models I and II, thus, a potential gene regulation network for the single sigmoid pattern was proposed. These results enhance our understanding of the molecular regulation of fruit size in Rosaceae.
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Affiliation(s)
- Mao-Song Pei
- Centre of Pear Engineering Technology Research, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095 China
| | - Su-Hao Cao
- Centre of Pear Engineering Technology Research, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095 China
| | - Lei Wu
- Centre of Pear Engineering Technology Research, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095 China
| | - Guo-Ming Wang
- Centre of Pear Engineering Technology Research, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095 China
| | - Zhi-Hua Xie
- Centre of Pear Engineering Technology Research, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095 China
| | - Chao Gu
- Centre of Pear Engineering Technology Research, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095 China
| | - Shao-Ling Zhang
- Centre of Pear Engineering Technology Research, State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, 210095 China
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Zhou T, Fan J, Zhao M, Zhang D, Li Q, Wang G, Zhang W, Cao F. Phenotypic variation of floral organs in Malus using frequency distribution functions. BMC Plant Biol 2019; 19:574. [PMID: 31864283 PMCID: PMC6925448 DOI: 10.1186/s12870-019-2155-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Accepted: 11/21/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Phenotypic diversity of floral organs plays an important role in plant systematic taxonomy and genetic variation studies. Previous research have focused on the direction of variation but disregarded its degree. Phenotypic variation (including directions and degrees) of 17 floral traits from wild to cultivated crabapples were explored by comparing their distributions and deviations in three different dimensions: floral organ number, size, and the shape. RESULTS Except for petal number, petal length / petal width, and sepal length / sepal width, the analyzed floral traits of cultivated crabapples all showed downward distributed box bodies in box plot analysis and left deviations of fitted curves in frequency distribution function analysis when compared to the wild, which revealed consistent variation directions of petaloid conversion (pistils or stamens → petals), size miniaturization (large → small), and shape narrowness (petal shape: circular → elliptic; sepal shape: triangular → lanceolate). However, only seven floral traits exhibited significant differences in box plot analysis, while all of the traits in frequency distribution function analysis were obviously offset. The variation degrees were quantitatively characterized by sizing traits > shaping traits > numbering traits and by horizontal dimensions > radial dimensions. CONCLUSIONS Frequency distribution function analysis was more sensitive than the box plot analysis, which constructed a theoretical basis for Malus flower type breeding and would provide a new quantitative method for future evaluation of floral variation among different groups of angiosperms at large.
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Affiliation(s)
- Ting Zhou
- College of Forestry, Nanjing Forestry University, Nanjing, 210037 China
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037 China
| | - Junjun Fan
- College of Forestry, Nanjing Forestry University, Nanjing, 210037 China
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037 China
- Department of Horticulture, University of Georgia, Athens, GA 30602 USA
| | - Mingming Zhao
- College of Forestry, Nanjing Forestry University, Nanjing, 210037 China
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037 China
- Yangzhou Crabapple Horticulture Company Limited, Yangzhou, 225200 China
| | - Donglin Zhang
- Department of Horticulture, University of Georgia, Athens, GA 30602 USA
| | - Qianhui Li
- College of Forestry, Nanjing Forestry University, Nanjing, 210037 China
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037 China
| | - Guibin Wang
- College of Forestry, Nanjing Forestry University, Nanjing, 210037 China
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037 China
| | - Wangxiang Zhang
- College of Forestry, Nanjing Forestry University, Nanjing, 210037 China
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037 China
- Yangzhou Crabapple Horticulture Company Limited, Yangzhou, 225200 China
| | - Fuliang Cao
- College of Forestry, Nanjing Forestry University, Nanjing, 210037 China
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037 China
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Ye H, Duan N, Gu H, Wang H, Wang Z. Fluorometric determination of lipopolysaccharides via changes of the graphene oxide-enhanced fluorescence polarization caused by truncated aptamers. Mikrochim Acta 2019; 186:173. [PMID: 30771102 DOI: 10.1007/s00604-019-3261-8] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 01/16/2019] [Indexed: 12/21/2022]
Abstract
A broad-spectrum ssDNA aptamer containing 80 nucleotides (LA80) and capable of binding to four different sources of lipopolysaccharides (LPSs) was truncated. Two strategies are used to produce truncated aptamers of different length. The results show that LA27, a 27-nt aptamer, retained broad-spectrum capability and has a higher affinity (Kd = 46.2 ± 9.5 nM). A graphene oxide based fluorescence polarization assay (excitation/emission wavelengths: 485/520 nm) was worked out using FAM-labeled LA27. It can detect LPSs from Salmonella entericaserotype typhimurium, Pseudomonas aeruginosa 10 and Escherichia coli 055:B5 with enhanced performance (4.8 to 29-fold improvements) compared to LA80. The assay can be performed within 30 min, and the detection limits are 38.7, 88.0 and 154 ng·mL-1, respectively. Graphical abstract Schematic presentation of the assay: A shorter aptamer, with higher affinity than its original aptamer, was obtained by truncated strategies. This core aptamer lead to release easily and enhance the sensivity of the GO-based fluorescence polarization assay.
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Affiliation(s)
- Hua Ye
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China
- College of Food Engineering, Anhui Science and Technology University, Fengyang, 233100, China
| | - Nuo Duan
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China
| | - Huajie Gu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China
- School of Chemical Biology and Materials Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - Haitao Wang
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian, 116034, China
| | - Zhouping Wang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China.
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian, 116034, China.
- International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, 214122, China.
- Collaborative Innovation Center of Food safety and Quality Control of Jiangsu Province, Jiangnan University, Wuxi, 214122, China.
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Luo Y, Wang XQ, Ni WJ, Ding B, Xu XH, Ye L, Ma JH, Zhu J. Comparison of Efficacy and Economic Value of Prandilin 25 and Humalog Mix 25 in Patients with Newly Diagnosed Type 2 Diabetes by a Continuous Glucose Monitoring System. Diabetes Ther 2018; 9:2219-2228. [PMID: 30244319 PMCID: PMC6250620 DOI: 10.1007/s13300-018-0502-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Indexed: 11/25/2022] Open
Abstract
INTRODUCTION To determine the clinical efficacy and economic value of insulin lispro 25-Prandilin 25 vs. insulin lispro 25-Humalog mix 25 in treatment of newly diagnosed type 2 diabetes mellitus (T2DM) by a continuous glucose monitoring system (CGMS). METHODS This was a single-center, randomized, case-crossover clinical trial. Participants were randomly allocated to two groups and underwent two kinds of insulin lispro 25 treatment separated by a 1-day washout period. In total, 81 patients with newly diagnosed T2DM with hemoglobin A1c (HbA1c) above 9% were hospitalized and randomly divided to receive Prandilin 25/Humalog mix 25 or Humalog mix 25/Prandilin 25 treatment. All participants were subjected to metformin therapy simultaneously. Glycemic control was reached after 7-8 days Prandilin 25 or Humalog mix 25 treatment; each patient received continuous glucose monitoring (CGM) for 5 consecutive days (from day 1 to day 5). On day 3 of CGM performance, Prandilin 25 treatment was switched to Humalog mix 25 treatment at the same dosage or vice versa. Parameters representing glycemic variability (GV) and postprandial glucose excursions, including 24-h mean blood glucose (24hMBG), 24-h standard deviation of blood glucose (24hSDBG), 24-h mean amplitude of glycemic excursion (24hMAGE), large amplitude of glycemic excursion (LAGE), incremental area under the curve (AUC) for different glucose levels, and postmeal relative areas under the CGM curve (AUCpp) for 1-4 h of each meal, were calculated for each patient. RESULTS No significant differences were found in the 24hMAGE, 24hMBG, 24hSDBG, LAGE, mean 1-h preprandial blood glucose and the incidence of hypoglycemia between the Prandilin 25 treatment group and Humalog mix 25 treatment group. Similarly, there were no between-treatment differences for AUC and time when blood glucose was below 3.9 mmol/l, between 3.9 mmol/l and 10.0 mmol/l, or above 10.0 mmol/l. Further analysis showed the AUCpp for 1-4 h of each meal for two kinds of treatments were similar. However, the mean estimated cost of Prandilin 25 was only 85% of Humalog mix 25 in one treatment course. CONCLUSION Prandilin 25 is non-inferior in clinical efficacy compared with Humalog mix 25. In view of the significant difference in the cost of the two kinds of insulin lispro 25, Prandilin 25 is a much more cost-effective anti-diabetes drug for management of T2DM. TRIAL REGISTRATION Chinese Clinical Trial Register identifier, ChiCTR1800015829.
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Affiliation(s)
- Yong Luo
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Xue-Qin Wang
- Department of Endocrinology, The Second Affiliated Hospital of Nantong University, First People's Hospital of Nantong City, Nantong, China
| | - Wen-Ji Ni
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Bo Ding
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Xiang-Hong Xu
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Lei Ye
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore, Singapore
| | - Jian-Hua Ma
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China.
| | - Jian Zhu
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China.
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Yuan L, Li F, Jing T, Ding B, Luo Y, Sun R, Wang X, Diao H, Su X, Ye L, Ma J. Insulin Injection Technique is Associated with Glycemic Variability in Patients with Type 2 Diabetes. Diabetes Ther 2018; 9:2347-2356. [PMID: 30341664 PMCID: PMC6250622 DOI: 10.1007/s13300-018-0522-1] [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] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Indexed: 01/04/2023] Open
Abstract
INTRODUCTION Patients with type 2 diabetes (T2D) receiving premixed insulin often fail to achieve optimal glycemic control. The insulin injection technique (IT) itself may be one of the factors affecting glycemic variability (GV). The aim of this study was to assess the relationship between GV and IT in patients with T2D using premixed insulin. METHODS This was a single center, cross-sectional, and self-controlled trial. Patients with T2D using premixed insulin were enrolled as inpatients. The 4-day study consisted of a 2-day patient insulin injection period (days 0 and 1) and a 2-day specialist nurse insulin injection period (days 2 and 3). Patient insulin IT were assessed on day 1 by two independent nurses using a skill-related scale consisting of 15 items, with a maximum score for each item of 2 and a total optimum score of 30. All patients underwent 96-h continuous glucose monitoring (CGM) during the 4-day study, and CGM data collected on days 1 and 3 were recorded and analyzed. The primary outcome was the relationship between the insulin IT score and the 24-h mean amplitude glycemic excursion (MAGE) during the patient injection period. RESULTS A total of 52 inpatients with T2D who used premixed insulin were recruited and completed the study. The mean total insulin IT score of these patients was considerably lower than the optimum score (17.0 ± 4.4 vs. 30). Our CGM data showed that the MAGE was significantly higher during the patient injection period than during the nurse injection period (P < 0.05). Multiple linear stepwise regression analysis showed that the patient IT score was negatively correlated to the MAGE (P < 0.05). The patient IT score was also negatively correlated to glycated hemoglobin (HbA1c; P < 0.05). CONCLUSIONS A poorer insulin IT may negatively affect GV and HbA1c control in patients with T2D using premixed insulin. Our data indicate that the insulin IT is important for short- and long-term glycemic control. CLINICAL TRIAL REGISTRATION ClinicalTrials.gov identification number: NCT03513055.
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Affiliation(s)
- Lu Yuan
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Fengfei Li
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Ting Jing
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Bo Ding
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Yong Luo
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Rui Sun
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Xiuping Wang
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Hefeng Diao
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Xiaofei Su
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Lei Ye
- National Heart Centre Singapore, National Heart Research Institute Singapore, Singapore, Singapore
| | - Jianhua Ma
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China.
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Li FF, Zhang Y, Zhang WL, Liu XM, Chen MY, Sun YX, Su XF, Wu JD, Ye L, Ma JH. Male Patients with Longstanding Type 2 Diabetes Have a Higher Incidence of Hypoglycemia Compared with Female Patients. Diabetes Ther 2018; 9:1969-1977. [PMID: 30136074 PMCID: PMC6167277 DOI: 10.1007/s13300-018-0492-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Indexed: 12/17/2022] Open
Abstract
INTRODUCTION To explore whether there was a gender difference in the risk of hypoglycemia during intensive insulin therapy in patients with longstanding type 2 diabetes (T2D). This was a post hoc analysis of a single-center, open-label and prospective trial. METHODS All subjects were admitted as inpatients, underwent a standard bread meal test at baseline and received a 7-day continuous subcutaneous insulin infusion (CSII) therapy for achieving glycemic control. Patients then were randomized 1:1 to two groups receiving (1) 4 days of Novo Mix 30 followed by 2 days of Humalog Mix 50; (2) 4 days of Humalog Mix 50 followed by 2 days of Novo Mix 30. All patients were subjected to 4-day retrospective continuous glucose monitoring (CGM) during the last 4 days in this study. The primary outcome was the incidences of hypoglycemia monitored by CGM at the end point. RESULTS A total of 102 patients met the inclusion criteria and completed the study. Our data revealed that 29 patients (28%) experienced hypoglycemia as detected by CGM at the end point. Binary logistic stepwise regression analysis showed that only gender significantly correlated with hypoglycemia (B = 1.17, p = 0.017). Importantly, male patients had a significantly higher incidence of hypoglycemia than female patients (male = 20/52, female = 9/50, p = 0.022), although male patients required significantly lower insulin doses to maintain glycemic control than female patient (p = 0.00). CONCLUSION Male patients with longstanding T2D had a higher incidence of hypoglycemia than female patients during intensive insulin therapy. TRIAL REGISTRATION ClinicalTrials.gov identifier, ChiCTR-IPR-15007340.
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Affiliation(s)
- Feng-Fei Li
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Ying Zhang
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Wen-Li Zhang
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Xiao-Mei Liu
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Mao-Yuan Chen
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Yi-Xuan Sun
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Xiao-Fei Su
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Jin-Dan Wu
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Lei Ye
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore, Singapore
| | - Jian-Hua Ma
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China.
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Zhang Y, Han G, Wu H, Wang X, Liu Y, Zhang J, Liu H, Zheng H, Chen X, Liu C, Hao Y. Reduced Contact Resistance Between Metal and n-Ge by Insertion of ZnO with Argon Plasma Treatment. Nanoscale Res Lett 2018; 13:237. [PMID: 30112730 PMCID: PMC6093824 DOI: 10.1186/s11671-018-2650-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Accepted: 08/01/2018] [Indexed: 06/08/2023]
Abstract
We investigate the metal-insulator-semiconductor contacts on n-Ge utilizing a ZnO interfacial layer (IL) to overcome the Fermi-level pinning (FLP) effect at metal/Ge interface and reduce the barrier height for electrons. A small conduction band offset of 0.22 eV at the interface between ZnO and n-Ge is obtained, and the ZnO IL leads to the significant reduced contact resistance (Rc) in metal/ZnO/n-Ge compared to the control device without ZnO, due to the elimination of FLP. It is observed that the argon (Ar) plasma treatment of ZnO can further improve the Rc characteristics in Al/ZnO/n-Ge device, which is due to that Ar plasma treatment increases the concentration of oxygen vacancy Vo, acting as n-type dopants in ZnO. The ohmic contact is demonstrated in the Al/ZnO/n-Ge with a dopant concentration of 3 × 1016 cm-3 in Ge. On the heavily doped n+-Ge with a phosphor ion (P+) implantation, a specific contact resistivity of 2.86 × 10- 5 Ω cm2 is achieved in Al/ZnO/n+-Ge with Ar plasma treatment.
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Affiliation(s)
- Yi Zhang
- State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology, School of Microelectronics, Xidian University, Xi’an, 710071 People’s Republic of China
| | - Genquan Han
- State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology, School of Microelectronics, Xidian University, Xi’an, 710071 People’s Republic of China
| | - Hao Wu
- Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, 430072 People’s Republic of China
| | - Xiao Wang
- State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology, School of Microelectronics, Xidian University, Xi’an, 710071 People’s Republic of China
| | - Yan Liu
- State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology, School of Microelectronics, Xidian University, Xi’an, 710071 People’s Republic of China
| | - Jincheng Zhang
- State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology, School of Microelectronics, Xidian University, Xi’an, 710071 People’s Republic of China
| | - Huan Liu
- State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology, School of Microelectronics, Xidian University, Xi’an, 710071 People’s Republic of China
| | - Haihua Zheng
- Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, 430072 People’s Republic of China
| | - Xue Chen
- Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, 430072 People’s Republic of China
| | - Chang Liu
- Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, 430072 People’s Republic of China
| | - Yue Hao
- State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology, School of Microelectronics, Xidian University, Xi’an, 710071 People’s Republic of China
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Li FF, Shen Y, Sun R, Zhang DF, Jin X, Zhai XF, Chen MY, Su XF, Wu JD, Ye L, Ma JH. Effects of Vildagliptin Add-on Insulin Therapy on Nocturnal Glycemic Variations in Uncontrolled Type 2 Diabetes. Diabetes Ther 2017; 8:1111-1122. [PMID: 28921310 PMCID: PMC5630558 DOI: 10.1007/s13300-017-0303-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Indexed: 02/07/2023] Open
Abstract
INTRODUCTION To investigate whether vildagliptin add-on insulin therapy improves glycemic variations in patients with uncontrolled type 2 diabetes (T2D) compared to patients with placebo therapy. METHODS This was a 24-week, single-center, double-blind, placebo-controlled trial. Inadequately controlled T2D patients treated with insulin therapy were recruited between June 2012 and April 2013. The trial included a 2-week screening period and a 24-week randomized period. Subjects were randomly assigned to a vildagliptin add-on insulin therapy group (n = 17) or a matched placebo group (n = 16). Scheduled visits occurred at weeks 4, 8, 12, 16, 20, and 24. Continuous glucose monitoring (CGM) was performed before and at the endpoint of the study. RESULTS A total of 33 subjects were admitted, with 1 patient withdrawing from the placebo group. After 24 weeks of therapy, HbA1c values were significantly reduced at the endpoint in the vildagliptin add-on group. CGM data showed that patients with vildagliptin add-on therapy had a significantly lower 24-h mean glucose concentration and mean amplitude of glycemic excursion (MAGE). At the endpoint of the study, patients in the vildagliptin add-on group had a significantly lower MAGE and standard deviation compared to the control patients during the nocturnal period (0000-0600). A severe hypoglycemic episode was not observed in either group. CONCLUSION Vildagliptin add-on therapy to insulin has the ability to improve glycemic variations, especially during the nocturnal time period, in patients with uncontrolled T2D.
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Affiliation(s)
- Feng-Fei Li
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Yun Shen
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Rui Sun
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Dan-Feng Zhang
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Xing Jin
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Xiao-Fang Zhai
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Mao-Yuan Chen
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Xiao-Fei Su
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Jin-Dan Wu
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Lei Ye
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore, Singapore
| | - Jian-Hua Ma
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China.
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Zhang L, Wang L, Shahzad KA, Xu T, Wan X, Pei W, Shen C. Paracrine release of IL-2 and anti-CTLA-4 enhances the ability of artificial polymer antigen-presenting cells to expand antigen-specific T cells and inhibit tumor growth in a mouse model. Cancer Immunol Immunother 2017; 66:1229-1241. [PMID: 28501941 PMCID: PMC11028408 DOI: 10.1007/s00262-017-2016-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 05/06/2017] [Indexed: 12/22/2022]
Abstract
Accumulating evidence indicates that bead-based artificial antigen-presenting cells (aAPCs) are a powerful tool to induce antigen-specific T cell responses in vitro and in vivo. To date, most conventional aAPCs have been generated by coupling an antigen signal (signal 1) and one or two costimulatory signals, such as anti-CD28 with anti-LFA1 or anti-4-1BB (signal 2), onto the surfaces of cell-sized or nanoscale magnetic beads or polyester latex beads. The development of a biodegradable scaffold and the combined use of multiple costimulatory signals as well as third signals for putative clinical applications is the next step in the development of this technology. Here, a novel biodegradable aAPC platform for active immunotherapy was developed by co-encapsulating IL-2 and anti-CTLA-4 inside cell-sized polylactic-co-glycolic acid microparticles (PLGA-MPs) while co-coupling an H-2Kb/TRP2-Ig dimer and anti-CD28 onto the surface. Cytokines (activating signal) and antibodies (anti-inhibition signal) were efficiently co-encapsulated in PLGA-MP-based aAPCs and co-released without interfering with each other. The targeted, sustained co-release of IL-2 and anti-CTLA-4 achieved markedly enhanced, synergistic effects in activating and expanding tumor antigen-specific T cells both in vitro and in vivo, as well as in inhibiting tumor growth in a mouse melanoma model, as compared with conventional two-signal aAPCs and IL-2 or anti-CTLA-4 single-released aAPCs. These data revealed the feasibility and importance of the paracrine release of multiple costimulatory molecules and cytokines from biodegradable aAPCs and thus provide a proof of principle for the future use of polymeric aAPCs for active immunotherapy of tumors and infectious diseases.
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Affiliation(s)
- Lei Zhang
- Department of Microbiology and Immunology, Medical School, Southeast University, 87 Dingjiaqiao Rd, Nanjing, 210009, Jiangsu, People's Republic of China
| | - Limin Wang
- Department of Microbiology and Immunology, Medical School, Southeast University, 87 Dingjiaqiao Rd, Nanjing, 210009, Jiangsu, People's Republic of China
| | - Khawar Ali Shahzad
- Department of Microbiology and Immunology, Medical School, Southeast University, 87 Dingjiaqiao Rd, Nanjing, 210009, Jiangsu, People's Republic of China
| | - Tao Xu
- Department of Microbiology and Immunology, Medical School, Southeast University, 87 Dingjiaqiao Rd, Nanjing, 210009, Jiangsu, People's Republic of China
| | - Xin Wan
- Department of Microbiology and Immunology, Medical School, Southeast University, 87 Dingjiaqiao Rd, Nanjing, 210009, Jiangsu, People's Republic of China
| | - Weiya Pei
- Department of Microbiology and Immunology, Medical School, Southeast University, 87 Dingjiaqiao Rd, Nanjing, 210009, Jiangsu, People's Republic of China
| | - Chuanlai Shen
- Department of Microbiology and Immunology, Medical School, Southeast University, 87 Dingjiaqiao Rd, Nanjing, 210009, Jiangsu, People's Republic of China.
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Deng Y, Sun X, Gu C, Jia X, Liang L, Su J. Identification of pre-fertilization reproductive barriers and the underlying cytological mechanism in crosses among three petal-types of Jasminum sambac and their relevance to phylogenetic relationships. PLoS One 2017; 12:e0176026. [PMID: 28419158 PMCID: PMC5395215 DOI: 10.1371/journal.pone.0176026] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Accepted: 04/04/2017] [Indexed: 11/18/2022] Open
Abstract
Crosses among single-, double- and multi-petal jasmine cultivars (Jasminum sambac Aiton) are unable to easily generate hybrids. To identify the reproductive barriers restricting hybrid set, dynamic changes in jasmine pollen viability and pistil receptivity were compared at different flowering stages. Pollen-pistil interactions in six reciprocal crosses were also investigated to characterize pollen-stigma compatibility. Additionally, paraffin sections of pollinated embryo sacs were prepared for subsequent analyses of developmental status. Furthermore, pistil cell ultrastructural characteristics were observed to reveal cytological mechanism regulating pistil receptivity and the pollen-pistil interactions. We observed that pollen viability and stigma receptivity varied depending on petal phenotype and flowering stage and were easily lost during flowering. Different reciprocal crosses exhibited varied pollen-stigma compatibilities according to the pollen germination rates. Although some pollen grains germinated normally on maternal stigmas, the pollen tubes were arrested in the pistils and were unable to reach the ovaries. Additionally, the embryo sacs remained unfertilized until degenerating. Therefore, jasmine crosses are affected by pre-fertilization reproductive barriers. Low pollen fertility and poor stigma receptivity are detrimental to pollen germination and pollen-pistil compatibility, indicating they are two factors affecting hybrid set. Ultrastructural observation of the pistil cells revealed that cell death occurred during flowering. Thus, the early and rapid senescence of pistils is likely responsible for the decreased pistil receptivity and inhibited pollen tube growth. These findings may be relevant for future jasmine hybridizations. They provide new insights for the development of methods to overcome reproductive barriers and may also be useful for clarifying the phylogenetic relationships among jasmine cultivars with differing petal phenotypes.
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Affiliation(s)
- Yanming Deng
- Provincial Key Laboratory for Horticultural Crop Genetic Improvement, Institute of Leisure Agriculture, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu, China
| | - Xiaobo Sun
- Provincial Key Laboratory for Horticultural Crop Genetic Improvement, Institute of Leisure Agriculture, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu, China
| | - Chunsun Gu
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, Jiangsu, China
| | - Xinping Jia
- Provincial Key Laboratory for Horticultural Crop Genetic Improvement, Institute of Leisure Agriculture, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu, China
| | - Lijian Liang
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, Jiangsu, China
| | - Jiale Su
- Provincial Key Laboratory for Horticultural Crop Genetic Improvement, Institute of Leisure Agriculture, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu, China
- * E-mail:
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