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Gao Z, Lai Y, Tao Y, Xiao L, Zhang L, Luo F. Constructing Well-Defined and Robust Th-MOF-Supported Single-Site Copper for Production and Storage of Ammonia from Electroreduction of Nitrate. ACS Cent Sci 2021; 7:1066-1072. [PMID: 34235267 PMCID: PMC8228586 DOI: 10.1021/acscentsci.1c00370] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Indexed: 05/23/2023]
Abstract
A combined technique of production and storage of ammonia (NH3) from electroreduction of nitrate (NO3 -) through one material is highly desirable but remains a huge challenge. Herein, we proposed a proof-of-concept strategy for combined NH3 production and storage from electroreduction of NO3 - through elaborately designing a single-site CuII-bipyridine-based thorium metal-organic framework (Cu@Th-BPYDC). Noticeably, the single CuII site, anchored by a solid-liquid postsynthetic metalation within Th-BPYDC, shows a novel square coordination structure, as determined by the single-crystal X-ray diffraction. This strongly implies its enormous potential as an open metal site and consequently enables excellent performance in electroreduction of NO3 - for NH3 production, giving 92.5% Faradaic efficiency and 225.3 μmol h-1 cm-2 yield. Impressively, we can further use Cu@Th-BPYDC material to effectively capture the previously produced NH3 from electroreduction of NO3 -, affording an uptake up to 20.55 mmol g-1 at 298 K at 1 bar. The results in this work will outline a new direction toward the combined technique for advanced electrocatalysis such as gas production plus storage/or separation.
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Affiliation(s)
- Zhi Gao
- State Key Laboratory of Nuclear
Resources and Environment, School of Biology, Chemistry and Material
Science, East China University of Technology, Nanchang, Jiangxi 330013, China
| | - Yulian Lai
- State Key Laboratory of Nuclear
Resources and Environment, School of Biology, Chemistry and Material
Science, East China University of Technology, Nanchang, Jiangxi 330013, China
| | - Yuan Tao
- State Key Laboratory of Nuclear
Resources and Environment, School of Biology, Chemistry and Material
Science, East China University of Technology, Nanchang, Jiangxi 330013, China
| | - Longhui Xiao
- State Key Laboratory of Nuclear
Resources and Environment, School of Biology, Chemistry and Material
Science, East China University of Technology, Nanchang, Jiangxi 330013, China
| | - Liuxin Zhang
- State Key Laboratory of Nuclear
Resources and Environment, School of Biology, Chemistry and Material
Science, East China University of Technology, Nanchang, Jiangxi 330013, China
| | - Feng Luo
- State Key Laboratory of Nuclear
Resources and Environment, School of Biology, Chemistry and Material
Science, East China University of Technology, Nanchang, Jiangxi 330013, China
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452
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Xu L, Li T, Chen Q, Liu Z, Chen Y, Hu K, Zhang X. The α2AR/Caveolin-1/p38MAPK/NF-κB axis explains dexmedetomidine protection against lung injury following intestinal ischaemia-reperfusion. J Cell Mol Med 2021; 25:6361-6372. [PMID: 34114328 PMCID: PMC8406475 DOI: 10.1111/jcmm.16614] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 04/20/2021] [Accepted: 04/28/2021] [Indexed: 12/22/2022] Open
Abstract
Intestinal ischaemia-reperfusion (I/R) injury can result in acute lung injury due to ischaemia and hypoxia. Dexmedetomidine (Dex), a highly selective alpha2-noradrenergic receptor (α2AR) agonist used in anaesthesia, is reported to regulate inflammation in organs. This study aimed to investigate the role and mechanism of Dex in lung injury caused by intestinal I/R. After establishing a rat model of intestinal I/R, we measured the wet-to-dry specific gravity of rat lungs upon treatments with Dex, SB239063 and the α2AR antagonist Atipamezole. Moreover, injury scoring and histopathological studies of lung tissues were performed, followed by ELISA detection on tumour necrosis factor-α (TNF-α), interleukin (IL)-1β and IL-6 expression. Correlation of Caveolin-1 (Cav-1) protein expression with p38, p-p38, p-p65 and p65 in rat lung tissues was analysed, and the degree of cell apoptosis in lung tissues after intestinal I/R injury was detected by TUNEL assay. The lung injury induced by intestinal I/R was a dynamic process. Moreover, Dex had protective effects against lung injury by mediating the expression of Cal-1 and α2A -AR. Specifically, Dex promoted Cav-1 expression via α2A -AR activation and mitigated intestinal I/R-induced lung injury, even in the presence of Atipamezole. The protective effect of Dex on intestinal I/R-induced lung injury was also closely related to α2A -AR/p38 mitogen-activated protein kinases/nuclear factor-kappaB (MAPK/NF-κB) pathway. Dex can alleviate pulmonary inflammation after in intestinal I/R by promoting Cav-1 to inhibit the activation of p38 and NF-κB. In conclusion, Dex can reduce pulmonary inflammatory response even after receiving threats from both intestinal I/R injury and Atipamezole.
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Affiliation(s)
- Lin Xu
- Department of AnesthesiologyThe First Affiliated Hospital of Nanchang UniversityNanchangChina
| | - Taiyuan Li
- Department of Gastrointestinal SurgeryThe First Affiliated Hospital of Nanchang UniversityNanchangChina
| | - Qiuhong Chen
- Department of AnesthesiologyThe First Affiliated Hospital of Nanchang UniversityNanchangChina
| | - Zhen Liu
- Department of AnesthesiologyThe First Affiliated Hospital of Nanchang UniversityNanchangChina
| | - Yuesheng Chen
- Department of Gastrointestinal SurgeryThe Fourth Affiliated Hospital of Nanchang UniversityNanchangChina
| | - Kai Hu
- Nanchang Hongdu Hospital of traditional Chinese MedicineNanchangChina
| | - Xuekang Zhang
- Department of AnesthesiologyThe First Affiliated Hospital of Nanchang UniversityNanchangChina
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453
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Ma L, Jiang T, Liu X, Xiao H, Peng Y, Zhang W. Evaluation of candidate reference genes for gene expression analysis in the brassica leaf beetle, Phaedon brassicae (Coleoptera: Chrysomelidae). PLoS One 2021; 16:e0251920. [PMID: 34081693 PMCID: PMC8174695 DOI: 10.1371/journal.pone.0251920] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 11/11/2020] [Accepted: 05/05/2021] [Indexed: 11/20/2022] Open
Abstract
The brassica leaf beetle Phaedon brassicae is a notorious defoliator of cruciferous vegetables. However, few molecular studies of this pest have been conducted due to limited sequence data. Recently, RNA sequencing has offered a powerful platform to generate numerous transcriptomic data, which require RT-qPCR to validate target gene expression. The selection of reliable reference genes to normalize RT-qPCR data is a prerequisite for gene expression analysis. In the present study, the expression stabilities of eight candidate reference genes under biotic conditions (development stages and various tissues) and abiotic perturbations (thermal stress and pesticide exposure) were evaluated using four different statistical algorithms. The optimal suites of reference genes were recommended for the respective experimental conditions. For tissue expression analysis, RPL32 and EF-1α were recommended as the suitable reference genes. RPL19 and TBP were the optimal reference genes across different developmental stages. RPL32 and TBP were identified as the most suitable references for thermal stress. Furthermore, RPL32 and RPL19 were ranked as the best references for insecticide exposure. This work provides a systematic exploration of the optimal reference genes for the respective experimental conditions, and our findings would facilitate molecular studies of P. brassicae.
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Affiliation(s)
- Long Ma
- College of Life Sciences, Jiangxi Science & Technology Normal University, Nanchang, China
| | - Ting Jiang
- Institute of Entomology, Jiangxi Agricultural University, Nanchang, China
| | - Xiangya Liu
- Institute of Entomology, Jiangxi Agricultural University, Nanchang, China
| | - Haijun Xiao
- Institute of Entomology, Jiangxi Agricultural University, Nanchang, China
| | - Yingchuan Peng
- Institute of Entomology, Jiangxi Agricultural University, Nanchang, China
| | - Wanna Zhang
- Institute of Entomology, Jiangxi Agricultural University, Nanchang, China
- * E-mail:
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454
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Zou S, Hu B. In vivo imaging reveals mature Oligodendrocyte division in adult Zebrafish. Cell Regen 2021; 10:16. [PMID: 34075520 PMCID: PMC8169745 DOI: 10.1186/s13619-021-00079-3] [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] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 03/03/2021] [Indexed: 06/12/2023]
Abstract
Whether mature oligodendrocytes (mOLs) participate in remyelination has been disputed for several decades. Recently, some studies have shown that mOLs participate in remyelination by producing new sheaths. However, whether mOLs can produce new oligodendrocytes by asymmetric division has not been proven. Zebrafish is a perfect model to research remyelination compared to other species. In this study, optic nerve crushing did not induce local mOLs death. After optic nerve transplantation from olig2:eGFP fish to AB/WT fish, olig2+ cells from the donor settled and rewrapped axons in the recipient. After identifying these rewrapping olig2+ cells as mOLs at 3 months posttransplantation, in vivo imaging showed that olig2+ cells proliferated. Additionally, in vivo imaging of new olig2+ cell division from mOLs was also captured within the retina. Finally, fine visual function was renewed after the remyelination program was completed. In conclusion, our in vivo imaging results showed that new olig2+ cells were born from mOLs by asymmetric division in adult zebrafish, which highlights the role of mOLs in the progression of remyelination in the mammalian CNS.
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Affiliation(s)
- Suqi Zou
- Institute of Life Science, Nanchang University, Nanchang, Jiangxi, 330031, P. R. China.
- School of Life Sciences, Nanchang University, Nanchang, Jiangxi, 330031, P. R. China.
| | - Bing Hu
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China.
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455
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Tao L, Zhao J, Chen J, Ou C, Lv W, Zhong S. 1,4,5,8-Naphthalenetetracarboxylic dianhydride grafted phthalocyanine macromolecules as an anode material for lithium ion batteries. Nanoscale Adv 2021; 3:3199-3215. [PMID: 36133650 PMCID: PMC9417102 DOI: 10.1039/d1na00115a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 03/26/2021] [Indexed: 06/16/2023]
Abstract
For solving the problems of high solubility in electrolytes, poor conductivity and low active site utilization of organic electrode materials, in this work, 1,4,5,8-naphthalenetetracarboxylic dianhydride (NTCDA) grafted nickel phthalocyanine (TNTCDA-NiPc) was synthesized and used as an anode material for lithium ion batteries. As a result, the dispersibility, conductivity and dissolution stability are improved, which is conducive to enhancing the performance of batteries. The initial discharge capacity of the TNTCDA-NiPc electrode is 859.8 mA h g-1 at 2 A g-1 current density, which is much higher than that of the NTCDA electrode (247.4 mA h g-1). After 379 cycles, the discharge capacity of the TNTCDA-NiPc electrode is 1162.9 mA h g-1, and the capacity retention rate is 135.3%, which is 7 times that of the NTCDA electrode. After NTCDA is grafted to the phthalocyanine macrocyclic system, the dissolution of the NTCDA in the electrolyte is reduced, and the conductivity and dispersion of the NTCDA and phthalocyanine ring are also improved, so that more active sites of super lithium intercalation from NTCDA and phthalocyanine rings are exposed, which results in better electrochemical performance. The strategy of grafting small molecular active compounds into macrocyclic conjugated systems used in this work can provide new ideas for the development of high performance organic electrode materials.
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Affiliation(s)
- Lihong Tao
- School of Materials Science and Engineering, Jiangxi Provincial Key Laboratory of Power Batteries and Materials, Jiangxi University of Sciences and Technology Ganzhou 341000 China
| | - Jianjun Zhao
- School of Materials Science and Engineering, Jiangxi Provincial Key Laboratory of Power Batteries and Materials, Jiangxi University of Sciences and Technology Ganzhou 341000 China
| | - Jun Chen
- School of Materials Science and Engineering, Jiangxi Provincial Key Laboratory of Power Batteries and Materials, Jiangxi University of Sciences and Technology Ganzhou 341000 China
| | - Caixia Ou
- School of Materials Science and Engineering, Jiangxi Provincial Key Laboratory of Power Batteries and Materials, Jiangxi University of Sciences and Technology Ganzhou 341000 China
| | - Weixia Lv
- School of Materials Science and Engineering, Jiangxi Provincial Key Laboratory of Power Batteries and Materials, Jiangxi University of Sciences and Technology Ganzhou 341000 China
| | - Shengwen Zhong
- School of Materials Science and Engineering, Jiangxi Provincial Key Laboratory of Power Batteries and Materials, Jiangxi University of Sciences and Technology Ganzhou 341000 China
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456
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Liu Z, Hu S, Yun Z, Hu W, Zhang S, Luo D. Using dynamic cell communication improves treatment strategies of breast cancer. Cancer Cell Int 2021; 21:275. [PMID: 34034721 PMCID: PMC8145794 DOI: 10.1186/s12935-021-01979-9] [Citation(s) in RCA: 1] [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] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Accepted: 05/13/2021] [Indexed: 12/28/2022] Open
Abstract
Several insights from the clinical treatment of breast cancer patients have revealed that only a portion of patients achieve the expected curative effect after traditional targeted therapy, that surgical treatment may promote the development of cancer metastasis, and that the optimal combination of neoadjuvant chemotherapy and traditional treatment is not clear. Therefore, a more precise classification of breast cancer and selection of treatment methods should be undertaken to improve the efficacy of clinical treatment. In the clinical treatment of breast cancer, cell communication molecules are often selected as therapeutic targets. However, various cell communications are not static. Their dynamic changes are related to communicating cells, communicating molecules, and various intertwined internal and external environmental factors. Understanding the dynamic microenvironment can help us improve therapeutic efficacy and provide new ways to more accurately determine the cancer status. Therefore, this review describes multiple types of cellular communication in the breast cancer microenvironment and incorporates internal and external environmental factors as variable signaling factors in cell communication. Using dynamic and developmental concepts, we summarize the functional changes in signaling molecules and cells to aid in the diagnosis and treatment of breast cancer.
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Affiliation(s)
- Zhibo Liu
- Second Clinic Medical College, The Second Affiliated Hospital of Chongqing Medical University, 76 Linjiang Road, Yuzhong District, Chongqing, People's Republic of China
| | - Song Hu
- Thrombosis Center, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China
| | - Zehui Yun
- Queen Mary School, School of Medicine, Nanchang University, Nanchang, People's Republic of China
| | - Wanshan Hu
- School of Medicine, Forth Clinic Medical College, Nanchang University, Nanchang, People's Republic of China
| | - Shuhua Zhang
- Jiangxi Cardiovascular Research Institute, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, Aiguo Road, No. 152, Nanchang, 330006, Jiangxi, People's Republic of China.
| | - Daya Luo
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Nanchang University, Bayi Road, No. 461, Nanchang, 330006, People's Republic of China.
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457
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Wang F, Liu J, Hu X, Zhong Y, Wen F, Tang X, Yang S, Zhong S, Zhou Z, Yuan X, Li Y. The influence on oxidative stress markers, inflammatory factors and intestinal injury-related molecules in Wahui pigeon induced by lipopolysaccharide. PLoS One 2021; 16:e0251462. [PMID: 33979394 PMCID: PMC8115843 DOI: 10.1371/journal.pone.0251462] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Accepted: 04/27/2021] [Indexed: 11/30/2022] Open
Abstract
Introduction The intestinal structure is the foundation for various activities and functions in poultry. An important question concerns the changes in the intestinal status under endotoxin stimulation. This study aimed to investigate the mechanism of intestinal injury induced by lipopolysaccharide (LPS) in Wahui pigeons. Methods Thirty-six 28-day-old healthy Wahui pigeons were randomly divided into two groups. The experimental group was injected with LPS (100 μg/kg) once per day for five days, and the control group was treated with the same amount of sterile saline. Blood and the ileum were collected from pigeons on the first, third, and fifth days of the experiment and used for oxidative stress assessment, inflammatory factor detection, histopathological examination, and positive cell localization. In addition, intestinal injury indices and mRNA expression levels (tight junction proteins, inflammatory cytokines, and factors related to autophagy and apoptosis) were evaluated. Results Villi in the ileum were shorter in the LPS group than in the control group, and D-lactic acid levels in the serum were significantly increased. Glutathione and catalase levels significantly decreased, but the malondialdehyde content in the serum increased. TNF-α and IL-10 were detected at higher levels in the serum, with stronger positive signals and higher mRNA expression levels, in the LPS group than in the control group. In addition, the levels of TLR4, MyD88, NF-κB, and HMGB1 in the inflammatory signaling pathway were also upregulated. Finally, the mRNA expression of Claudin3, Occludin, and ZO-1 was significantly decreased; however, that of Beclin1 and Atg5 was increased in the LPS group. Conclusion Ileal pathological changes and oxidative stress were caused by LPS challenge; it is proposed that this triggering regulates the inflammatory response, causing excessive autophagy and apoptosis, promoting intestinal permeability, and leading to intestinal injury in Wahui pigeons.
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Affiliation(s)
- Fei Wang
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, China
| | - Jin Liu
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, China
| | - Xiaofen Hu
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, China
| | - Youbao Zhong
- Technology Center of Experimental Animals, Jiangxi University of Traditional Chinese Medicine, Nanchang, 330004, Jiangxi, China
| | - Feng Wen
- College of Life Science and Engineering, Foshan University, Foshan, 528231, Guangdong, China
| | - Xiaoen Tang
- Fuzhou Husbandry Breeding Farm, Linchuan, 344000, Jiangxi, China
| | - Shanshan Yang
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, China
| | - Shengwei Zhong
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, China
| | - Zuohong Zhou
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, China
| | - Xu Yuan
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, China
| | - Yong Li
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, 330045, Jiangxi, China
- * E-mail:
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458
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Zhang Y, Chen L, Ye X, Wu Z, Zhang Z, Sun B, Fu H, Fu C, Liang X, Jiang H. Expression and mechanism of exosome-mediated A FOXM1 related long noncoding RNA in gastric cancer. J Nanobiotechnology 2021; 19:133. [PMID: 33971889 PMCID: PMC8111998 DOI: 10.1186/s12951-021-00873-w] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [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: 03/09/2021] [Accepted: 04/26/2021] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Forkhead box protein M1 (FOXM1) is an oncogene regulating tumor growth and metastasis. Exosome was suggested to mediate cell communication by delivering active molecules in cancers. However, the existence of FOXM1 in circulating exosomes and the role of exosome FOXM1 in gastric cancer (GC) were not clear. This study aims to investigate the potential role of FOXM1 related long noncoding RNA (FRLnc1) in exosomes in GC. RESULTS The prepared CD63 immunomagnetic beads (CD63-IMB) had the characteristics of good dispersity and high magnetic response. The isolated exosomes were presented with elliptical membranous particles under a transmission electron microscope (TEM), with the particle size of 89.78 ± 4.8 nm. Western blot (WB) results showed that the exosomes were rich in CD9 and CD81. The Dil-labeled exosomes were distributed around cytoplasm and nucleus of cells by imaging flow cytometry (IFC) analysis. The results of quantitative real-time PCR (qRT-PCR) revealed that the FRLnc1 expressions were up-regulated in GC cells, tumor tissues, and serum of GC patients. An obviously up-regulated FRLnc1 expression was found in serum exosomes of GC patients. Up-regulation of FRLnc1 expression was closely correlated to lymph node metastasis (LNM) and TNM stage with the combination of relevant clinicopathological parameter analysis. The in vitro functional analyses demonstrated that FRLnc1 knockdown by RNA interference suppressed cell proliferation and migration in HGC-27 cells, whereas FRLnc1 overexpression promoted cell proliferation and migration in MKN45 cells. After exosome treatment, the FRLnc1 expression was significantly increased in MKN45 cells, and the MKN45 cells showed increased ability of proliferation and migration. CONCLUSION GC cells-derived exosomes played roles in promoting the growth and metastasis of GC by transporting FRLnc1, suggesting that FRLnc1 in the exosomes may be a potential biomarker for the diagnosis and treatment of GC. The delivery of FRLnc1 by the exosomes may provide a new way for the treatment of GC. Trial registration 2020-KYSB-094. Registered 23 March 2020-Retrospectively registered.
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Affiliation(s)
- Yan Zhang
- Department of Oncology, Tongji Hospital, Tongji University School of Medicine, No. 389, Putuoxincun Rd., Shanghai, 200065, China
| | - Lin Chen
- Department of Colorectal Surgery, Department of General Surgery, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120, China
| | - Xuanting Ye
- Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Zhixiong Wu
- Department of Oncology, Tongji Hospital, Tongji University School of Medicine, No. 389, Putuoxincun Rd., Shanghai, 200065, China
| | - Zeyu Zhang
- Department of Oncology, Tongji Hospital, Tongji University School of Medicine, No. 389, Putuoxincun Rd., Shanghai, 200065, China
| | - Biaofeng Sun
- Department of Oncology, Tongji Hospital, Tongji University School of Medicine, No. 389, Putuoxincun Rd., Shanghai, 200065, China
| | - Hong Fu
- Department of Oncology, Tongji Hospital, Tongji University School of Medicine, No. 389, Putuoxincun Rd., Shanghai, 200065, China
| | - Chuangang Fu
- Department of Colorectal Surgery, Department of General Surgery, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120, China.
| | - Xiaofei Liang
- Huzhou Lieyuan Medical Laboratory Company Ltd., No. 800, Rujiadian Rd., Huzhou, 313000, China.
| | - Hong Jiang
- Department of Oncology, Tongji Hospital, Tongji University School of Medicine, No. 389, Putuoxincun Rd., Shanghai, 200065, China.
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459
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Liu R, Huang S, Zhang X, Song Y, He G, Wang Z, Lian B. Bio-mineralisation, characterization, and stability of calcium carbonate containing organic matter. RSC Adv 2021; 11:14415-14425. [PMID: 35423988 PMCID: PMC8697732 DOI: 10.1039/d1ra00615k] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [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: 01/23/2021] [Accepted: 04/07/2021] [Indexed: 12/03/2022] Open
Abstract
The composition of organic matter in biogenic calcium carbonate has long been a mystery, and its role has not received sufficient attention. This study is aimed at elucidating the bio-mineralisation and stability of amorphous calcium carbonate (ACC) and vaterite containing organic matter, as induced by Bacillus subtilis. The results showed that the bacteria could induce various structural forms of CaCO3, such as biogenic ACC (BACC) or biogenic vaterite (BV), using the bacterial cells as their template, and the carbonic anhydrase secreted by the bacteria plays an important role in the mineralisation of CaCO3. The effects of Ca2+ concentration on the crystal structure of CaCO3 were ascertained; when the amount of CaCl2 increased from 0.1% (m/v) to 0.8% (m/v), the ACC was transformed to polycrystalline vaterite. The XRD results demonstrated that the ACC and vaterite have good stability in air or deionised water for one year, or even when heated to 200 °C or 300 °C for 2 h. Moreover, the FTIR results indicated that the BACC or BV is rich in organic matter, and the contents of organic matter in biogenic ACC and vaterite are 39.67 wt% and 28.47 wt%, respectively. The results of bio-mimetic mineralisation experiments suggest that the protein secreted by bacterial metabolism may be inclined to inhibit the formation of calcite, while polysaccharide may be inclined to promote the formation of vaterite. Our findings advance our knowledge of the CaCO3 family and are valuable for future research into organic-CaCO3 complexes.
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Affiliation(s)
- Renlu Liu
- School of Life Sciences, Key Laboratory of Agricultural Environmental Pollution Prevention and Control in Red Soil Hilly Region of Jiangxi Province, Jinggangshan University Ji'an 343009 China
- School of Life Sciences, School of Marine Science and Engineering, Nanjing Normal University Nanjing 210023 China
| | - Shanshan Huang
- School of Life Sciences, School of Marine Science and Engineering, Nanjing Normal University Nanjing 210023 China
| | - Xiaowen Zhang
- School of Life Sciences, School of Marine Science and Engineering, Nanjing Normal University Nanjing 210023 China
| | - Yongsheng Song
- School of Life Sciences, Key Laboratory of Agricultural Environmental Pollution Prevention and Control in Red Soil Hilly Region of Jiangxi Province, Jinggangshan University Ji'an 343009 China
| | - Genhe He
- School of Life Sciences, Key Laboratory of Agricultural Environmental Pollution Prevention and Control in Red Soil Hilly Region of Jiangxi Province, Jinggangshan University Ji'an 343009 China
| | - Zaifeng Wang
- School of Life Sciences, School of Marine Science and Engineering, Nanjing Normal University Nanjing 210023 China
| | - Bin Lian
- School of Life Sciences, School of Marine Science and Engineering, Nanjing Normal University Nanjing 210023 China
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Jiang X, Ma J, Jiang G, Xu M, Huang X, Gao G, Dai X. Preparation of Gold Nanoplates Using Ortho Carbonyl Compounds as Capping Agents for Electrochemical Sensing of Lead Ions. Nanoscale Res Lett 2021; 16:57. [PMID: 33829314 PMCID: PMC8026806 DOI: 10.1186/s11671-021-03521-2] [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] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 03/30/2021] [Indexed: 06/12/2023]
Abstract
In this study, gold nanoplates were synthesized using plant molecules (gallic acid) following a kinetic control mode. The growth of nanoplates is mainly due to the specific adsorption of capping agents on certain crystal facets. Through systematical characterizations, it is found that the distance between two oxygen atoms in ortho carbonyl compounds matches well with the lattice spacing of gold (111) facets exactly, which is beneficial to the formation of twin seeds and further the growth of plate-like gold nanoparticles. The gold nanoplates on glassy carbon electrode show a remarkably improved electrochemical sensing activity of lead ions compared to the bare glassy carbon electrode or spherical gold nanoparticle-modified electrode. The modified electrode is expected to be used in the detection of lead ion concentration in heavy metal wastewater.
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Affiliation(s)
- Xinde Jiang
- College of Civil and Architectural Engineering, Nanchang Institute of Technology, Nanchang, 330099, China.
- High-Tech Development Zone, Tianxiang Road 289, Nanchang, 330099, Jiangxi, China.
| | - Jianye Ma
- College of Civil and Architectural Engineering, Nanchang Institute of Technology, Nanchang, 330099, China
| | - Guixian Jiang
- College of Civil and Architectural Engineering, Nanchang Institute of Technology, Nanchang, 330099, China
| | - Manqing Xu
- College of Civil and Architectural Engineering, Nanchang Institute of Technology, Nanchang, 330099, China
| | - Xueping Huang
- College of Civil and Architectural Engineering, Nanchang Institute of Technology, Nanchang, 330099, China
| | - Guiqing Gao
- College of Civil and Architectural Engineering, Nanchang Institute of Technology, Nanchang, 330099, China
| | - Xin Dai
- College of Civil and Architectural Engineering, Nanchang Institute of Technology, Nanchang, 330099, China
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461
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Huang Z, Zeng W, Wu Y, Li S, Gu Q, Zhao K. Effects of temperature and acid solution on the physical and tensile mechanical properties of red sandstones. Environ Sci Pollut Res Int 2021; 28:20608-20623. [PMID: 33410043 DOI: 10.1007/s11356-020-11866-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 09/17/2020] [Accepted: 11/29/2020] [Indexed: 06/12/2023]
Abstract
Recent infrastructure development in China and other developing countries has attracted global attention. As a control project of traffic engineering, tunnels also have rapidly increased. However, fire accidents induced by traffic accident or gas explosion frequently occur in tunnels, causing irreversible damage to the tunnel rocks. Moreover, the corrosive effects of acid rain or polluted groundwater have a long-term effect on the tunnel and surrounding rocks. In this paper, physical and thermophysical properties tests as well as Brazilian splitting test were conducted on red sandstone specimens after heating at a variety of different temperature and acidic solution erosion. The responses of surface features, mass, P wave velocity, porosity and thermal conductivity, and the tensile strength of the red sandstone were compared and analyzed. In addition, the effects of high temperature (25-1000 °C) and acidic solution on microscopic structures, defect morphology, and mineral reaction of the red sandstone were observed and analyzed. The experimental results show that high temperature and acidic chemical solution significantly affects the physical and mechanical properties of the rock mass. The typical parameters, such as surface features, mass and P wave velocity, porosity, thermal conductivity, and tensile strength, are closely affected by acidity. In addition, we observed that the physical properties of red sandstones change with temperature and can be divided into three stages, and at 300-800 °C stage, they significantly declined. The results provide a basis for rock damage and failure induced by fire and acidic groundwater seepage in tunnels.
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Affiliation(s)
- Zhen Huang
- School of Resources and Environment Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, China
- School of Earth Sciences and Engineering, Nanjing University, Nanjing, 210023, China
| | - Wei Zeng
- School of Resources and Environment Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, China.
| | - Yun Wu
- School of Earth Sciences and Engineering, Nanjing University, Nanjing, 210023, China
| | - Shijie Li
- School of Resources and Environment Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, China
| | - Qixiong Gu
- School of Resources and Environment Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, China
| | - Kui Zhao
- School of Resources and Environment Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, China.
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462
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Tang Y, Qu Z, Lei J, He R, Adelson DL, Zhu Y, Yang Z, Wang D. The long noncoding RNA FRILAIR regulates strawberry fruit ripening by functioning as a noncanonical target mimic. PLoS Genet 2021; 17:e1009461. [PMID: 33739974 PMCID: PMC8011760 DOI: 10.1371/journal.pgen.1009461] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [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: 01/21/2020] [Revised: 03/31/2021] [Accepted: 03/03/2021] [Indexed: 11/19/2022] Open
Abstract
Long noncoding RNAs (lncRNAs) are emerging as important regulators in plant development, but few of them have been functionally characterized in fruit ripening. Here, we have identified 25,613 lncRNAs from strawberry ripening fruits based on RNA-seq data from poly(A)-depleted libraries and rRNA-depleted libraries, most of which exhibited distinct temporal expression patterns. A novel lncRNA, FRILAIR harbours the miR397 binding site that is highly conserved in diverse strawberry species. FRILAIR overexpression promoted fruit maturation in the Falandi strawberry, which was consistent with the finding from knocking down miR397, which can guide the mRNA cleavage of both FRILAIR and LAC11a (encoding a putative laccase-11-like protein). Moreover, LAC11a mRNA levels were increased in both FRILAIR overexpressing and miR397 knockdown fruits, and accelerated fruit maturation was also found in LAC11a overexpressing fruits. Overall, our study demonstrates that FRILAIR can act as a noncanonical target mimic of miR397 to modulate the expression of LAC11a in the strawberry fruit ripening process.
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Affiliation(s)
- Yajun Tang
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, China
- Key Laboratory of Molecular Biology and Gene Engineering in Jiangxi Province, College of Life Science, Nanchang University, Nanchang, China
- FAFU-UCR Joint Center for Horticultural Biology and Metabolomics, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Zhipeng Qu
- Department of Molecular and Biomedical Science, School of Biological Sciences, The University of Adelaide, Adelaide, Australia
| | - Jiajun Lei
- College of Horticulture, Shenyang Agricultural University, Shenyang, China
| | - Reqing He
- Key Laboratory of Molecular Biology and Gene Engineering in Jiangxi Province, College of Life Science, Nanchang University, Nanchang, China
| | - David L. Adelson
- Department of Molecular and Biomedical Science, School of Biological Sciences, The University of Adelaide, Adelaide, Australia
| | - Youlin Zhu
- Key Laboratory of Molecular Biology and Gene Engineering in Jiangxi Province, College of Life Science, Nanchang University, Nanchang, China
| | - Zhenbiao Yang
- FAFU-UCR Joint Center for Horticultural Biology and Metabolomics, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Dong Wang
- Key Laboratory of Molecular Biology and Gene Engineering in Jiangxi Province, College of Life Science, Nanchang University, Nanchang, China
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463
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Zhang WJ. Effect of P2X purinergic receptors in tumor progression and as a potential target for anti-tumor therapy. Purinergic Signal 2021; 17:151-162. [PMID: 33420658 PMCID: PMC7954979 DOI: 10.1007/s11302-020-09761-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [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: 09/08/2020] [Accepted: 12/10/2020] [Indexed: 02/06/2023] Open
Abstract
The development of tumors is a complex pathological process involving multiple factors, multiple steps, and multiple genes. Their prevention and treatment have always been a difficult problem at present. A large number of studies have proved that the tumor microenvironment plays an important role in the progression of tumors. The tumor microenvironment is the place where tumor cells depend for survival, and it plays an important role in regulating the growth, proliferation, apoptosis, migration, and invasion of tumor cells. P2X purinergic receptors, which depend on the ATP ion channel, can be activated by ATP in the tumor microenvironment, and by mediating tumor cells and related cells (such as immune cells) in the tumor microenvironment. They play an important regulatory role on the effects of the skeleton, membrane fluidity, and intracellular molecular metabolism of tumor cells. Therefore, here, we outlined the biological characteristics of P2X purinergic receptors, described the effect of tumor microenvironment on tumor progression, and discussed the effect of ATP on tumor. Moreover, we explored the role of P2X purinergic receptors in the development of tumors and anti-tumor therapy. These data indicate that P2X purinergic receptors may be used as another potential pharmacological target for tumor prevention and treatment.
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Affiliation(s)
- Wen-Jun Zhang
- Gastrointestinal Surgery, The Second Affiliated Hospital, Nanchang University, Nanchang, 343000, Jiangxi, China.
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Abstract
RATIONALE Primary renal carcinoid tumors are very rare and only about 100 cases have been reported in the medical literature. There are even fewer articles on the imaging manifestations of primary renal carcinoid tumors. PATIENT CONCERNS We present 3 cases of patients with lumbago and hematuria. These were cases of primary renal carcinoid tumors with initial suspicion of suprarenal epithelioma. DIAGNOSES Renal lesions were detected on abdomen computed tomography (CT) imaging. The 3 cases presented as solid/cystic solid renal mass with uniform or non-uniform density, calcification in the mass, and enhanced heterogeneity. INTERVENTIONS The laparoscopic partial/radical nephrectomy were performed. OUTCOMES The postoperative histological diagnosis were primary renal carcinoid tumors. Case 2 been lost to follow-up in 3 patients, and the other 2 patients (Case 1 and 3) are still alive. Case 1 had intrahepatic metastases. LESSONS Primary renal carcinoid tumors mostly present as solid mass/cystic solid mass with calcification and delayed enhancement of heterogeneity on CT imaging, but the diagnosis depends on pathological diagnosis. Hence, raising awareness of the CT features of the rare tumor in the kidney may broaden the knowledge base of radiologists.
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465
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Deng Y, Yan C, Nie M, Ding M. Bisphenol A adsorption behavior on soil and biochar: impact of dissolved organic matter. Environ Sci Pollut Res Int 2021; 28:10.1007/s11356-021-12723-1. [PMID: 33625712 DOI: 10.1007/s11356-021-12723-1] [Citation(s) in RCA: 1] [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] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 01/26/2021] [Indexed: 06/12/2023]
Abstract
Dissolved organic matter (DOM) released from soil (SDOM) and biochar (BDOM) plays an important role in the fate of pollutants for the application of biochar in soil remediation. However, little attention has been paid to the impact of DOM on the adsorption of soil and/or biochar-bisphenol A (BPA) system. Hence, batch sorption experiments combined with quenching titration experiments were processed to reveal these behaviors and complexation mechanisms based on red soil and corn straw biochar. Moreover, multiple spectral technologies and methods were also introduced including ultraviolet-visible, three-dimensional excitation-emission matrix, synchronous fluorescence spectrum, two-dimensional correlation spectroscopy (2D-COS), and parallel factor analysis. Isothermal adsorption results showed that the non-linearity and the adsorption capacity both increased after the addition of biochar, indicating that biochar could improve the surface adsorption capacity of the sorption system. Besides, the sorption capacity of BPA decreased for soil while increased for biochar after removal of the water-extractable DOM. 2D-COS analysis showed that the protein-like components preferentially occurred for both SDOM and BDOM under BPA surrounding. In addition, C2 (humic-like), C4 (tyrosine-like), and C5 (tryptophan-like) in the two DOMs were all involved in the quenching reaction with BPA, with C4 and C5 having higher quenching degree than C2, suggesting that protein-like substances had stronger affinity quenching effect with BPA. This study highlighted the significance of fluorescence property for DOM, which can extend the knowledge of the fate of pollutants in the application of biochar.
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Affiliation(s)
- Yawen Deng
- School of Geography and Environment, Key Laboratory of Poyang Lake Wetland and Watershed Research, Ministry of Education, Jiangxi Normal University, 99 Ziyang Road, Nanchang, 330022, China
| | - Caixia Yan
- School of Geography and Environment, Key Laboratory of Poyang Lake Wetland and Watershed Research, Ministry of Education, Jiangxi Normal University, 99 Ziyang Road, Nanchang, 330022, China.
| | - Minghua Nie
- School of Geography and Environment, Key Laboratory of Poyang Lake Wetland and Watershed Research, Ministry of Education, Jiangxi Normal University, 99 Ziyang Road, Nanchang, 330022, China.
| | - Mingjun Ding
- School of Geography and Environment, Key Laboratory of Poyang Lake Wetland and Watershed Research, Ministry of Education, Jiangxi Normal University, 99 Ziyang Road, Nanchang, 330022, China
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466
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Zhang H, Zeng L, Liu Q, Jin G, Zhang J, Li Z, Xu Y, Tian H, Deng S, Shi Q, Huang X. CVB3 VP1 interacts with MAT1 to inhibit cell proliferation by interfering with Cdk-activating kinase complex activity in CVB3-induced acute pancreatitis. PLoS Pathog 2021; 17:e1008992. [PMID: 33556114 PMCID: PMC7895353 DOI: 10.1371/journal.ppat.1008992] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 09/15/2020] [Revised: 02/19/2021] [Accepted: 01/08/2021] [Indexed: 01/09/2023] Open
Abstract
Coxsackievirus B3 (CVB3) belongs to the genus Enterovirus of the family Picornaviridae and can cause acute acinar pancreatitis in adults. However, the molecular mechanisms of pathogenesis underlying CVB3-induced acute pancreatitis have remained unclear. In this study, we discovered that CVB3 capsid protein VP1 inhibited pancreatic cell proliferation and exerted strong cytopathic effects on HPAC cells. Through yeast two-hybrid, co-immunoprecipitation, and confocal microscopy, we show that Menage a trois 1 (MAT1), a subunit of the Cdk-Activating Kinase (CAK) complex involved in cell proliferation and transcription, is a novel interaction protein with CVB3 VP1. Moreover, CVB3 VP1 inhibited MAT1 accumulation and localization, thus interfering with its interaction with CDK7. Furthermore, CVB3 VP1 could suppress CAK complex enzymic phosphorylation activity towards RNA Pol II and CDK4/6, direct substrates of CAK. VP1 also suppresses phosphorylation of retinoblastoma protein (pRb), an indirect CAK substrate, especially at phospho-pRb Ser780 and phospho-pRb Ser807/811 residues, which are associated with cell proliferation. Finally, we present evidence using deletion mutants that the C-terminal domain (VP1-D8, 768-859aa) is the minimal VP1 region required for its interaction with MAT1, and furthermore, VP1-D8 alone was sufficient to arrest cells in G1/S phase as observed during CVB3 infection. Taken together, we demonstrate that CVB3 VP1 can inhibit CAK complex assembly and activity through direct interaction with MAT1, to block MAT1-mediated CAK-CDK4/6-Rb signaling, and ultimately suppress cell proliferation in pancreatic cells. These findings substantially extend our basic understanding of CVB3-mediated pancreatitis, providing strong candidates for strategic therapeutic targeting.
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Affiliation(s)
- Hongxia Zhang
- The First Affiliated Hospital of Nanchang University, Nanchang, China
- Department of Medical Microbiology, School of Medicine, Nanchang University, Nanchang, China
| | - Lingbing Zeng
- The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Qiong Liu
- Department of Medical Microbiology, School of Medicine, Nanchang University, Nanchang, China
| | - Guilin Jin
- The Affiliated Hospital of JiangXi university of TCM, Nanchang, China
| | - Jieyu Zhang
- Fuzhou Medical School of Nanchang University, Fuzhou, China
| | - Zengbin Li
- Department of Medical Microbiology, School of Medicine, Nanchang University, Nanchang, China
| | - Yilian Xu
- Department of Medical Microbiology, School of Medicine, Nanchang University, Nanchang, China
| | - Huizhen Tian
- Department of Medical Microbiology, School of Medicine, Nanchang University, Nanchang, China
| | - Shanshan Deng
- Department of Medical Microbiology, School of Medicine, Nanchang University, Nanchang, China
| | - Qiaofa Shi
- Department of Medical Microbiology, School of Medicine, Nanchang University, Nanchang, China
| | - Xiaotian Huang
- The First Affiliated Hospital of Nanchang University, Nanchang, China
- Department of Medical Microbiology, School of Medicine, Nanchang University, Nanchang, China
- * E-mail:
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467
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Cao X, Zhang P, Guo N, Tong Y, Xu Q, Zhou D, Feng Z. Self-healing solid polymer electrolyte based on imine bonds for high safety and stable lithium metal batteries. RSC Adv 2021; 11:2985-2994. [PMID: 35424250 PMCID: PMC8694013 DOI: 10.1039/d0ra10035h] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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: 11/27/2020] [Accepted: 12/26/2020] [Indexed: 11/21/2022] Open
Abstract
Due to their low flammability, good dimensional stability and chemical stability, solid polymer electrolytes are currently attracting extensive interest for building lithium metal batteries. But severe safety issues such as cracks or breakage, resulting in short circuits will prevent their widespread application. Here, we report a new design of self-healing solid polymer electrolyte (ShSPE) based on imine bonds, fabricated from varying amounts of polyoxyethylenebis(amine) and terephthalaldehyde through a simple Schiff base reaction. Moreover, adding diglycidyl ether of bisphenol A improves the flexibility and high stretchability of the polymer electrolyte. The polymer networks exhibit good thermal stability and excellent self-healing characteristics. The ShSPE with the highest NH2-PEG-NH2 content (ShSPE-3) has an improved lithium ion transference number of 0.39, and exhibits an electrochemical stability up to 4.5 V vs. Li/Li+. ShSPE-3 shows the highest ionic conductivity of 1.67 × 10-4 S cm-1 at 60 °C. Besides, the interfacial stability of ShSPE-3 is promoted and the electrolyte membrane exhibits good cycling performance with LiFePO4, and the LiFePO4/Li cell exhibits an initial discharge capacity of 141.3 mA h g -1. These results suggest that self-healing solid polymer electrolytes are promising candidates for high safety and stable lithium metal batteries.
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Affiliation(s)
- Xiaoyan Cao
- School of Environmental and Chemical Engineering, Nanchang Hangkong University 696 Fenghe South Avenue Nanchang 330063 China +86 791 83953373 +86 791 83953377
| | - Pengming Zhang
- School of Environmental and Chemical Engineering, Nanchang Hangkong University 696 Fenghe South Avenue Nanchang 330063 China +86 791 83953373 +86 791 83953377
| | - Nanping Guo
- School of Materials Science and Engineering, Nanchang Hangkong University 696 Fenghe South Avenue Nanchang 330063 China
| | - Yongfen Tong
- School of Environmental and Chemical Engineering, Nanchang Hangkong University 696 Fenghe South Avenue Nanchang 330063 China +86 791 83953373 +86 791 83953377
| | - Qiuhua Xu
- School of Environmental and Chemical Engineering, Nanchang Hangkong University 696 Fenghe South Avenue Nanchang 330063 China +86 791 83953373 +86 791 83953377
| | - Dan Zhou
- School of Environmental and Chemical Engineering, Nanchang Hangkong University 696 Fenghe South Avenue Nanchang 330063 China +86 791 83953373 +86 791 83953377
| | - Zhijun Feng
- School of Materials Science and Engineering, Nanchang Hangkong University 696 Fenghe South Avenue Nanchang 330063 China
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468
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Abstract
Chronic obstructive pulmonary disease (COPD) affects a large population and is closely associated with cognitive impairment. However, the mechanisms of cognitive impairment in COPD patients have not been unraveled. This study investigated the change in patterns of intrinsic functional hubs using a degree centrality (DC) analysis. The connectivity between these abnormal hubs with the remaining brain was also investigated using functional connectivity (FC). Nineteen stable patients with COPD and 20 normal controls(NC) underwent functional magnetic resonance imaging (MRI) examinations and clinical and neuropsychologic assessments. We measured the voxel-wise DC across the whole brain gray matter and the seed-based FC between these abnormal hubs in the remaining brain matter; the group difference was calculated. A partial correlation analysis was performed to assess the relationship between the abnormal DC and clinical variables in COPD patients. Compared to NC, the patients with COPD exhibited significantly decreased DC in the right lingual gyrus (LG), bilateral supplementary motor area (SMA), and right paracentral lobule (PCL). A further seed-based FC analysis found that COPD patients demonstrated significantly decreased FC between these abnormal hubs in several brain areas, including the left cerebellum anterior lobe, left lingual gyrus, left fusiform gyrus, right insula, right inferior frontal gyrus, limbic lobe, cingulate gyrus, left putamen, lentiform nucleus, right precuneus, and right paracentral lobule. A partial correlation analysis showed that the decreased DC in the right PCL was positively correlated with the FEV1 and FEV1/FVC, and the decreased DC in the SMA was positively correlated with naming and pH in COPD patients. This study demonstrates that there are intrinsic functional hubs and connectivity alterations that may reflect the aberrant information communication in the brain of COPD patients. These findings may help provide new insight for understanding the mechanisms of COPD-related cognitive impairment from whole brain functional connections.
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Affiliation(s)
- Haijun Li
- Department of Radiology, the First Affiliated Hospital of Nanchang University, No.17, Yongwai Zheng Street, Donghu District, Nanchang, 330006, Jiangxi Province, People's Republic of China
| | - Huizhen Xin
- Department of Radiology, the First Affiliated Hospital of Nanchang University, No.17, Yongwai Zheng Street, Donghu District, Nanchang, 330006, Jiangxi Province, People's Republic of China
| | - Jingjing Yu
- Department of Respiratory, the First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Honghui Yu
- Department of Radiology, the First Affiliated Hospital of Nanchang University, No.17, Yongwai Zheng Street, Donghu District, Nanchang, 330006, Jiangxi Province, People's Republic of China
| | - Juan Zhang
- Department of Radiology, the First Affiliated Hospital of Nanchang University, No.17, Yongwai Zheng Street, Donghu District, Nanchang, 330006, Jiangxi Province, People's Republic of China
| | - Wenjing Wang
- Department of Respiratory, the First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Dechang Peng
- Department of Radiology, the First Affiliated Hospital of Nanchang University, No.17, Yongwai Zheng Street, Donghu District, Nanchang, 330006, Jiangxi Province, People's Republic of China.
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469
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Xiao A, Ge QM, Zhong HF, Zhang LJ, Shu HY, Liang RB, Shao Y, Zhou Q. White Matter Hyperintensities of Bilateral Lenticular Putamen in Patients with Proliferative Diabetic Retinopathy: A Voxel-based Morphometric Study. Diabetes Metab Syndr Obes 2021; 14:3653-3665. [PMID: 34408460 PMCID: PMC8366956 DOI: 10.2147/dmso.s321270] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 05/21/2021] [Accepted: 07/23/2021] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVE To explore the changes in gray matter volume (GMV) and white matter volume (WMV) in proliferative diabetic retinopathy (PDR) patients using voxel-based morphometry (VBM). PARTICIPANTS AND METHODS In total, 15 patients (10 males, 5 females) with PDR were enrolled to the patient group and 15 healthy controls (10 males, 5 females) to the control group, matched for age, sex, handedness, and education status. All individuals underwent voxel-based morphometry scans. GMV and WMV were compared between the two groups. RESULTS GMV in bilateral superior temporal gyrus, sixth area of left cerebellum, left middle temporal gyrus, left orbital inferior frontal gyrus and left middle cingulum gyrus and WMV in left thalamus and left precuneus were significantly lower in patients than controls (P<0.01). Conversely, WMV was significantly higher in bilateral lenticular putamen of patients than controls (P<0.01). CONCLUSION Abnormal GMV and WMV in many specific areas of the cerebrum provide new insights for exploration of the occurrence and development of DR and its pathophysiology.
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Affiliation(s)
- Ang Xiao
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Ocular Disease Clinical Research Center, Nanchang, Jiangxi, 330006, People’s Republic of China
| | - Qian-Min Ge
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Ocular Disease Clinical Research Center, Nanchang, Jiangxi, 330006, People’s Republic of China
| | - Hui-Feng Zhong
- Department of Intensive Care, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi, 341000, People’s Republic of China
| | - Li-Juan Zhang
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Ocular Disease Clinical Research Center, Nanchang, Jiangxi, 330006, People’s Republic of China
| | - Hui-Ye Shu
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Ocular Disease Clinical Research Center, Nanchang, Jiangxi, 330006, People’s Republic of China
| | - Rong-Bin Liang
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Ocular Disease Clinical Research Center, Nanchang, Jiangxi, 330006, People’s Republic of China
| | - Yi Shao
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Ocular Disease Clinical Research Center, Nanchang, Jiangxi, 330006, People’s Republic of China
- Correspondence: Yi Shao; Qiong Zhou Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Ocular Disease Clinical Research Center, No. 17, YongWaiZheng Street, DongHu District, Nanchang, 330006, Jiangxi, People’s Republic of China Tel/Fax +86 791-88692520; +86 791-88694639 Email ;
| | - Qiong Zhou
- Department of Ophthalmology, The First Affiliated Hospital of Nanchang University, Jiangxi Province Ocular Disease Clinical Research Center, Nanchang, Jiangxi, 330006, People’s Republic of China
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470
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Huang Q, Wan C, Zhang Y, Chen C, Chen J. Gum Arabic Edible Coating Reduces Postharvest Decay and Alleviates Nutritional Quality Deterioration of Ponkan Fruit During Cold Storage. Front Nutr 2021; 8:717596. [PMID: 34733873 PMCID: PMC8558414 DOI: 10.3389/fnut.2021.717596] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [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] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 09/13/2021] [Indexed: 02/05/2023] Open
Abstract
The storability recession during storage limits the postharvest storage life of Ponkan (Citrus reticulata Blanco cv. Ponkan) fruit and its nutritional value, which potentially lead to huge losses. To develop an effective technique to reduce Ponkan fruit postharvest decay and to maintain the nutritional quality, the preservation effect of 9, 12, and 15% postharvest gum arabic (GA) coatings on Ponkan fruit was investigated. The 12 and 15% GA coatings effectively reduced fruit decay as well as weight loss, retained higher total soluble solids (TSS) content, suppressed titratable acidity (TA) degradation, and postponed the rise in ripening index (RI). Moreover, the 12% GA-coated fruit exhibited a lower respiration rate, electrical conductivity, and malondialdehyde (MDA) accumulation than the uncoated (control) fruit. The 12% GA coating treatment decreased the loss of ascorbic acid (AsA), total phenols, and total flavonoids and maintained higher amounts of non-enzymatic antioxidants. Furthermore, the 12% GA coating treatment increased antioxidant enzymes' activities as well as delayed the reduction of total antioxidant capacity (TAC). These results suggest that, with the cold storage increasing time, the 12% GA-coated fruit exhibited better postharvest storability and higher nutritional quality than the control fruit. The GA coating treatment could be used as a commercial wax to improve postharvest storability, extend its storage life, and maintain the nutritional value of Ponkan fruit up to 120 days of cold storage.
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471
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Jiao Y, Peng J, Ye X, Hu H, Gan L, Yang J, Peng Y. Study on pharmacological properties and cell absorption metabolism of novel daidzein napsylates. R Soc Open Sci 2021; 8:201475. [PMID: 33614082 PMCID: PMC7890489 DOI: 10.1098/rsos.201475] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Accepted: 11/18/2020] [Indexed: 06/12/2023]
Abstract
Novel daidzein napsylates (DD4 and DD5) were synthesized by microwave irradiation, according to structural modification of daidzein (DAI) using the principle of pharmacokinetic transformation. The pharmacological properties of DD4 and DD5 were evaluated via high performance liquid chromatography (HPLC) and calculated based on the drug design software ChemAxon 16.1.18. The cell uptake changes of DD4 and DD5 were investigated to analyse the structure-property relationship. The metabolisms of DD4 and DD5 were analysed by HPLC-mass spectrometry in human aortic vascular smooth muscle cells (HAVSMCs) and their possible metabolic pathways were inferred in vivo. The results showed that the solubility of DD4 and DD5 was increased by 2.79 × 105 and 2.16 × 105 times compared to that of DAI, separately, in ethyl acetate. The maximum absorption rates of DD4 and DD5 were enhanced by 4.3-4.5 times relative to DAI. Preliminary studies on metabolites of DD4 and DD5 in HAVSMCs showed that DD4 and DD5 were hydrolysed into DAI under the action of intracellular hydrolase in two ways, ester hydrolysis or ether hydrolysis. Then, DAI was combined with glucuronic acid to form daidzein monoglucuronate under the action of uridine diphosphate (UDP)-glucuronidase. Meanwhile, it was also found that metabolite M5 of DD5 could undergo glucuronidation under the action of UDP-glucuronosyltransferase and competitive sulphation under the action of sulphotransferase to produce its sulfate conjugate M7. Analysis of structure-property relationships indicated that the absorption and utilization of drugs is closely relative to the physical properties and could be improved by adjusting the liposolubility. The pharmaceutical properties were optimized comprehensively after DAI was modified by naphthalene sulphonate esterification. This indicates that this kind of derivatives may have relatively good absorption and transport characteristics and biological activities in vivo. The research on biological activities of the new derivatives (DD4 and DD5) is ongoing in our laboratory.
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Affiliation(s)
- Yanxiao Jiao
- Jangxi Province Engineering Research Center of Ecological Chemical Industry, Jiujiang University, Jiujiang, People's Republic of China
| | - Jing Peng
- College of Traditional Chinese Medicine, Inner Mongolia Medical University, Hohhot, People's Republic of China
| | - Xinglin Ye
- College of Chemistry and Environmental Engineering, Jiujiang University, Jiujiang, People's Republic of China
| | - Huanan Hu
- College of Chemistry and Environmental Engineering, Jiujiang University, Jiujiang, People's Republic of China
| | - Lijun Gan
- School of Nursing, Jiujiang University, Jiujiang, People's Republic of China
| | - Jianyuan Yang
- College of Pharmaceutical and Life Sciences, Jiujiang University, Jiujiang, People's Republic of China
| | - You Peng
- Jangxi Province Engineering Research Center of Ecological Chemical Industry, Jiujiang University, Jiujiang, People's Republic of China
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Peng T, Kang JL, Xiong XT, Cheng FT, Zhou XJ, Dai WS, Wang M, Li ZY, Su HN, Zhong BL. Integrated Transcriptomics and Metabolomics Analyses Provide Insights Into the Response of Chongyi Wild Mandarin to Candidatus Liberibacter Asiaticus Infection. Front Plant Sci 2021; 12:748209. [PMID: 34721476 PMCID: PMC8551615 DOI: 10.3389/fpls.2021.748209] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 09/06/2021] [Indexed: 05/13/2023]
Abstract
Candidatus Liberibacter asiaticus (CLas) is the causative agent of Huanglongbing (HLB), which has caused great economic losses to the citrus industry. The molecular mechanism of the host response to CLas in wild citrus germplasm has been reported less. Eighteen weeks after inoculation via grafting, all the CLas-inoculated Chongyi wild mandarin (Citrus reticulata) were positive and showed severe anatomical aberrations, suggesting its susceptibility to HLB. Transcriptomics and metabolomics analyses of leaves, barks, and roots from mock-inoculated (control) and CLas-inoculated seedlings were performed. Comparative transcriptomics identified 3,628, 3,770, and 1,716 differentially expressed genes (DEGs) between CLas-infected and healthy tissues in the leaves, barks, and roots, respectively. The CLas-infected tissues had higher transcripts per kilobase per million values and more genes that reached their maximal expression, suggesting that HLB might cause an overall increase in transcript accumulation. However, HLB-triggered transcriptional alteration showed tissue specificity. In the CLas-infected leaves, many DEGs encoding immune receptors were downregulated. In the CLas-infected barks, nearly all the DEGs involved in signaling and plant-pathogen interaction were upregulated. In the CLas-infected roots, DEGs encoding enzymes or transporters involved in carotenoid biosynthesis and nitrogen metabolism were downregulated. Metabolomics identified 71, 62, and 50 differentially accumulated metabolites (DAMs) in the CLas-infected leaves, barks and roots, respectively. By associating DEGs with DAMs, nitrogen metabolism was the only pathway shared by the three infected tissues and was depressed in the CLas-infected roots. In addition, 26 genes were determined as putative markers of CLas infection, and a hypothesized model for the HLB susceptibility mechanism in Chongyi was proposed. Our study may shed light on investigating the molecular mechanism of the host response to CLas infection in wild citrus germplasm.
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Affiliation(s)
- Ting Peng
- National Navel Orange Engineering Research Center, College of Life Sciences, Gannan Normal University, Ganzhou, China
- *Correspondence: Ting Peng orcid.org/0000-0002-3084-6328
| | - Jing-Liang Kang
- National Navel Orange Engineering Research Center, College of Life Sciences, Gannan Normal University, Ganzhou, China
- China-USA Citrus Huanglongbing Joint Laboratory, Ganzhou, China
| | - Xin-Ting Xiong
- National Navel Orange Engineering Research Center, College of Life Sciences, Gannan Normal University, Ganzhou, China
| | - Fang-Ting Cheng
- National Navel Orange Engineering Research Center, College of Life Sciences, Gannan Normal University, Ganzhou, China
| | - Xiao-Juan Zhou
- National Navel Orange Engineering Research Center, College of Life Sciences, Gannan Normal University, Ganzhou, China
| | - Wen-Shan Dai
- National Navel Orange Engineering Research Center, College of Life Sciences, Gannan Normal University, Ganzhou, China
- China-USA Citrus Huanglongbing Joint Laboratory, Ganzhou, China
| | - Min Wang
- National Navel Orange Engineering Research Center, College of Life Sciences, Gannan Normal University, Ganzhou, China
- China-USA Citrus Huanglongbing Joint Laboratory, Ganzhou, China
| | - Zhong-Yang Li
- National Navel Orange Engineering Research Center, College of Life Sciences, Gannan Normal University, Ganzhou, China
| | - Hua-Nan Su
- National Navel Orange Engineering Research Center, College of Life Sciences, Gannan Normal University, Ganzhou, China
| | - Ba-Lian Zhong
- National Navel Orange Engineering Research Center, College of Life Sciences, Gannan Normal University, Ganzhou, China
- Ba-Lian Zhong
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473
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Yan S, Yu T, Li F, Huang Y, Xiao L, Li H, Wang M. Effectiveness and safety of different medicines for Uremia pruritus: A protocol for systematic review and network meta analysis. Medicine (Baltimore) 2020; 99:e23043. [PMID: 33371059 PMCID: PMC7748180 DOI: 10.1097/md.0000000000023043] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 10/07/2020] [Indexed: 11/26/2022] Open
Abstract
INTRODUCTION A large number of patients will experience pruritus after uremia. Medicine is the preferred treatment for many doctors, but the effectiveness and safety of different medicines for uremia pruritus has not yet been comprehensively compared, based on network meta-analysis. METHODS AND ANALYSIS According to the retrieval strategy, two team members independently searched the literature in 7 databases, and imported the retrieval results into the EndNote Software AQ8 (V.X9). After deleting repeated articles, they read the abstract and the full text, selected the articles that met the inclusion criteria and extracted valid information. The main results were visual analogue scale (VAS) and the secondary results were verbal rating scale (VRS), Dirk R Kuypers score, and adverse event incidence. The methodological quality evaluation was conducted from 7 aspects, according to The Cochrane Collaborative Tool, Stata Statistical Software (Version 14.0, Stata Corporation, College Station, TX) was used for data analysis. The level of evidence will be assessed by the Grading of Recommendations, Development and Evaluation (GRADE) instrument). RESULTS The results will rank the efficacy of drugs used to treat uremic pruritus and assess their safety. CONCLUSION This study is the first to compare the efficacy and safety of medicines for uremic pruritus based on network analysis and will provide evidence and ideas for the treatment of uremic pruritus. INPLASY REGISTRATION NUMBER No. INPLASY202090103.
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Affiliation(s)
- Shifan Yan
- Jiangxi University of Traditional Chinese Medicine
| | - Ting Yu
- Jiangxi University of Traditional Chinese Medicine
| | - Fusheng Li
- Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Yong Huang
- Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Lu Xiao
- Jiangxi University of Traditional Chinese Medicine
| | - Haiqun Li
- Jiangxi University of Traditional Chinese Medicine
| | - Maohong Wang
- Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, China
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474
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Zhu L, Li W, Deng Z, Li H, Zhang B. The Composition and Antioxidant Activity of Bound Phenolics in Three Legumes, and Their Metabolism and Bioaccessibility of Gastrointestinal Tract. Foods 2020; 9:E1816. [PMID: 33297502 PMCID: PMC7762431 DOI: 10.3390/foods9121816] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [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] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 11/30/2020] [Accepted: 12/04/2020] [Indexed: 12/14/2022] Open
Abstract
The composition and antioxidant activity of bound phenolics in three legumes (soybean, vicia faba, and kidney bean), and their metabolism and bioaccessibility in the gastrointestinal tract were investigated in this study. The total phenolic content, total flavonoid content, and antioxidant activities (ABTS and FRAP) were evaluated. The phytochemical compositions of the three legumes after acid/alkaline hydrolysis, simulated gastrointestinal digestion, and colonic fermentation were identified and quantified by UPLC-ESI-QTOF-MS/MS and HPLC-ESI-QqQ-MS/MS. The results showed that the three legumes were rich in bound phenolic compounds, and possessed a strong antioxidant activity; among which kidney bean showed a higher bound flavonoid content and antioxidant activity than the other two legumes. Alkaline hydrolysis allowed a more thorough extraction of the bound phenolics of the three legumes than acid hydrolysis. The released contents of bound phenolics were extremely low in in vitro digestion, whereas colonic fermentation favored the release of more phenolic compounds. Kidney bean, which presented the highest bound flavonoid content and antioxidant activity, had the lowest bioaccessibility. Our study provides a wider insight into the constituents and bioavailability of bound phenolic compounds in the three legumes.
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Affiliation(s)
- Liuying Zhu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, Jiangxi, China; (L.Z.); (W.L.); (Z.D.); (H.L.)
| | - Wenting Li
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, Jiangxi, China; (L.Z.); (W.L.); (Z.D.); (H.L.)
| | - Zeyuan Deng
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, Jiangxi, China; (L.Z.); (W.L.); (Z.D.); (H.L.)
- Institute for Advanced Study, University of Nanchang, Nanchang 330031, Jiangxi, China
| | - Hongyan Li
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, Jiangxi, China; (L.Z.); (W.L.); (Z.D.); (H.L.)
- Institute for Advanced Study, University of Nanchang, Nanchang 330031, Jiangxi, China
| | - Bing Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, Jiangxi, China; (L.Z.); (W.L.); (Z.D.); (H.L.)
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475
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Ding Z, Luo S, Gong W, Wang L, Ding N, Chen J, Chen J, Wang T, Ye Y, Song D, Kong L, Zhang J, Tang Y. Subcellular localization of the porcine deltacoronavirus nucleocapsid protein. Virus Genes 2020; 56:687-695. [PMID: 32944812 PMCID: PMC7497858 DOI: 10.1007/s11262-020-01790-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 08/17/2020] [Indexed: 02/07/2023]
Abstract
Porcine deltacoronavirus (PDCoV) has been recently identified as an emerging enteropathogenic coronavirus that mainly infects newborn piglets and causes enteritis, diarrhea and high mortality. Although coronavirus N proteins have multifarious activities, the subcellular localization of the PDCoV N protein is still unknown. Here, we produced mouse monoclonal antibodies against the PDCoV N protein. Experiments using anti-haemagglutinin antibodies and these monoclonal antibodies revealed that the PDCoV N protein is shuttled into the nucleolus in both ectopic PDCoV N-expressing cells and PDCoV-infected cells. The results of deletion mutagenesis experiments demonstrated that the predicted nucleolar localization signal at amino acids 295-318 is critical for nucleolar localization. Cumulatively, our study yielded a monoclonal antibody against the PDCoV N protein and revealed a mechanism by which the PDCoV N protein translocated into the nucleolus. The tolls and findings from this work will facilitate further investigations on the functions of the PDCoV N protein.
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MESH Headings
- Amino Acid Sequence
- Animals
- Antibodies, Monoclonal/biosynthesis
- Antibodies, Monoclonal/chemistry
- Antibodies, Viral/biosynthesis
- Antibodies, Viral/chemistry
- Cell Line
- Cell Nucleolus/genetics
- Cell Nucleolus/metabolism
- Coronavirus Infections/pathology
- Coronavirus Infections/virology
- Coronavirus Nucleocapsid Proteins/genetics
- Coronavirus Nucleocapsid Proteins/metabolism
- Deltacoronavirus/genetics
- Deltacoronavirus/growth & development
- Deltacoronavirus/metabolism
- Epithelial Cells/metabolism
- Epithelial Cells/ultrastructure
- Epithelial Cells/virology
- Gastroenteritis, Transmissible, of Swine/pathology
- Gastroenteritis, Transmissible, of Swine/virology
- Gene Expression
- Hemagglutinins, Viral/genetics
- Hemagglutinins, Viral/metabolism
- Host-Pathogen Interactions/genetics
- Kidney/pathology
- Kidney/virology
- Mice
- Nuclear Localization Signals
- Protein Transport
- Recombinant Proteins/genetics
- Recombinant Proteins/metabolism
- Sequence Deletion
- Swine
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Affiliation(s)
- Zhen Ding
- Department of Veterinary Preventive Medicine, College of Animal Science and Technology, Jiangxi Agricultural University, 1101 Zhimin Dadao, Qingshan Lake District, Nanchang, 330045, Jiangxi, China
- Jiangxi Provincial Key Laboratory for Animal Health, Jiangxi Agricultural University, Nanchang, Jiangxi, China
| | - Suxian Luo
- Department of Veterinary Preventive Medicine, College of Animal Science and Technology, Jiangxi Agricultural University, 1101 Zhimin Dadao, Qingshan Lake District, Nanchang, 330045, Jiangxi, China
- Jiangxi Provincial Key Laboratory for Animal Health, Jiangxi Agricultural University, Nanchang, Jiangxi, China
| | - Wang Gong
- Department of Veterinary Preventive Medicine, College of Animal Science and Technology, Jiangxi Agricultural University, 1101 Zhimin Dadao, Qingshan Lake District, Nanchang, 330045, Jiangxi, China
- Jiangxi Provincial Key Laboratory for Animal Health, Jiangxi Agricultural University, Nanchang, Jiangxi, China
| | - Leyi Wang
- Department of Veterinary Clinical Medicine and the Veterinary Diagnostic Laboratory, College of Veterinary Medicine, University of Illinois, Urbana, IL, USA
| | - Nengshui Ding
- State Key Laboratory for Pig Genetic Improvement and Production Technology, Jiangxi Agricultural University, Nanchang, Jiangxi, China
| | - Jun Chen
- Department of Veterinary Preventive Medicine, College of Animal Science and Technology, Jiangxi Agricultural University, 1101 Zhimin Dadao, Qingshan Lake District, Nanchang, 330045, Jiangxi, China
- Jiangxi Provincial Key Laboratory for Animal Health, Jiangxi Agricultural University, Nanchang, Jiangxi, China
| | - Jiajia Chen
- Department of Veterinary Preventive Medicine, College of Animal Science and Technology, Jiangxi Agricultural University, 1101 Zhimin Dadao, Qingshan Lake District, Nanchang, 330045, Jiangxi, China
- Jiangxi Provincial Key Laboratory for Animal Health, Jiangxi Agricultural University, Nanchang, Jiangxi, China
| | - Ting Wang
- Institute of Pathogenic Microorganism and College of Bioscience and Engineering, Jiangxi Agricultural University, Nanchang, Jiangxi, China
| | - Yu Ye
- Department of Veterinary Preventive Medicine, College of Animal Science and Technology, Jiangxi Agricultural University, 1101 Zhimin Dadao, Qingshan Lake District, Nanchang, 330045, Jiangxi, China
- Jiangxi Provincial Key Laboratory for Animal Health, Jiangxi Agricultural University, Nanchang, Jiangxi, China
| | - Deping Song
- Department of Veterinary Preventive Medicine, College of Animal Science and Technology, Jiangxi Agricultural University, 1101 Zhimin Dadao, Qingshan Lake District, Nanchang, 330045, Jiangxi, China
- Jiangxi Provincial Key Laboratory for Animal Health, Jiangxi Agricultural University, Nanchang, Jiangxi, China
| | - Lingbao Kong
- Institute of Pathogenic Microorganism and College of Bioscience and Engineering, Jiangxi Agricultural University, Nanchang, Jiangxi, China
| | - Jinghua Zhang
- Department of Veterinary Preventive Medicine, College of Animal Science and Technology, Jiangxi Agricultural University, 1101 Zhimin Dadao, Qingshan Lake District, Nanchang, 330045, Jiangxi, China.
- Jiangxi Provincial Key Laboratory for Animal Health, Jiangxi Agricultural University, Nanchang, Jiangxi, China.
| | - Yuxing Tang
- Department of Veterinary Preventive Medicine, College of Animal Science and Technology, Jiangxi Agricultural University, 1101 Zhimin Dadao, Qingshan Lake District, Nanchang, 330045, Jiangxi, China.
- Jiangxi Provincial Key Laboratory for Animal Health, Jiangxi Agricultural University, Nanchang, Jiangxi, China.
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476
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Abstract
Enterovirus 71 (EV71) is the main pathogen of the hand, foot, and mouth disease. It was firstly isolated from sputum specimens of infants with central nervous system diseases in California in 1969, and has been repeatedly reported in various parts of the world, especially in the Asia-Pacific region. EV71 3C protein is a 183 amino acid cysteine protease that can cleave most structural and non-structural proteins of EV71. Based on the analysis and understanding of EV71 3C protease, it is helpful to study and treat diseases caused by EV71 virus infection. The EV71 3C protease promotes virus replication by cleaving EV71 synthesis or host proteins. Moreover, EV71 3C protease inhibits the innate immune system and causes apoptosis. At present, in order to deal with the damage caused by the EV71, it is urgent to develop antiviral drugs targeting 3C protease. This review will focus on the structure, function, and mechanism of EV71 3C protease.
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Affiliation(s)
- Weihui Wen
- Department of Microbiology, School of Medicine, Nanchang University, Nanchang, Jiangxi, People's Republic of China
| | - Zixuan Qi
- School of Medicine, Forth Clinical College, Nanchang University, Nanchang, Jiangxi, People's Republic of China
| | - Jing Wang
- Department of Microbiology, School of Medicine, Nanchang University, Nanchang, Jiangxi, People's Republic of China.
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477
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Liao L, Zhong X, Jia X, Liao C, Zhong J, Ding S, Chen C, Hong S, Luo X. Supramolecular organogels fabricated with dicarboxylic acids and primary alkyl amines: controllable self-assembled structures. RSC Adv 2020; 10:29129-29138. [PMID: 35521101 PMCID: PMC9055967 DOI: 10.1039/d0ra05072e] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [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: 06/09/2020] [Accepted: 07/24/2020] [Indexed: 02/06/2023] Open
Abstract
Supramolecular organogels are soft materials comprised of low-molecular-mass organic gelators (LMOGs) and organic liquids. Owning to their unique supramolecular structures and potential applications, LMOGs have attracted wide attention from chemists and biochemists. A new "superorganogel" system based on dicarboxylic acids and primary alkyl amines (R-NH2) from the formation of organogels is achieved in various organic media including strong and weak polar solvents. The gelation properties of these gelators strongly rely on the molecular structure. Their aggregation morphology in the as-obtained organogels can be controlled by the solvent polarity and the tail chain length of R-NH2. Interestingly, flower-like self-assemblies can be obtained in organic solvents with medium polarity, such as tetrahydrofuran, pyridine and dichloromethane, when the gelators possess a suitable length of carbon chain. Moreover, further analyses of Fourier transformation infrared spectroscopy and 1H nuclear magnetic resonance spectroscopy reveal that the intermolecular acid-base interaction and van der Waals interaction are critical driving forces in the process of organogelation. In addition, this kind of organogel system displays excellent mechanical properties and thermo-reversibility, and its forming mechanism is also proposed.
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Affiliation(s)
- Lieqiang Liao
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University Nanchang 330031 P. R. China
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, College of Chemistry and Chemical Engineering, Gannan Normal University Ganzhou 341000 P. R. China
| | - Xiang Zhong
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, College of Chemistry and Chemical Engineering, Gannan Normal University Ganzhou 341000 P. R. China
| | - Xinjian Jia
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, College of Chemistry and Chemical Engineering, Gannan Normal University Ganzhou 341000 P. R. China
| | - Caiyun Liao
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, College of Chemistry and Chemical Engineering, Gannan Normal University Ganzhou 341000 P. R. China
| | - Jinlian Zhong
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, College of Chemistry and Chemical Engineering, Gannan Normal University Ganzhou 341000 P. R. China
| | - Shunmin Ding
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University Nanchang 330031 P. R. China
| | - Chao Chen
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University Nanchang 330031 P. R. China
| | - Sanguo Hong
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University Nanchang 330031 P. R. China
| | - Xuzhong Luo
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, College of Chemistry and Chemical Engineering, Gannan Normal University Ganzhou 341000 P. R. China
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478
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Yang YX, Fang YZ, Tian JX, Xiao Q, Kong XJ. Fluorescent polydopamine nanoparticles as a nanosensor for the sequential detection of mercury ions and l-ascorbic acid based on a coordination effect and redox reaction. RSC Adv 2020; 10:28164-28170. [PMID: 35519102 PMCID: PMC9055638 DOI: 10.1039/d0ra02031a] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 07/11/2020] [Indexed: 12/04/2022] Open
Abstract
Herein, a novel fluorescence nanosensor using intrinsic fluorescent polydopamine nanoparticles (PDA NPs) as an effective signal reporter has been constructed for the simple, rapid and sequential detection of mercury ions (Hg2+) and l-ascorbic acid (AA) based on a coordination effect and redox reaction. The fluorescence of the PDA NPs could be specifically quenched by Hg2+ through intense coordination effects between the Hg2+ and the groups (catechol, amine, ketone and imine) on the surface of the PDA NPs. However, when AA and Hg2+ coexisted in solution, the fluorescence of the PDA NPs pronouncedly recovered via the redox reaction of Hg2+, with it being reduced to Hg0 by AA. The fluorescence quenching mechanism of Hg2+ towards the PDA NPs and the redox reaction between Hg2+ and AA were also fully investigated. The nanosensor exhibited high sensitivity and desirable selectivity for Hg2+ and AA detection. Moreover, the strategy was successfully explored in real samples (tap water, lake water and human serum samples) with satisfactory recoveries. The developed nanosensor provides new sights and good inspiration for Hg2+ and AA detection under real conditions.
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Affiliation(s)
- Yi-Xuan Yang
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University Nanchang 330013 P. R. China +86-791-86422903 +86-791-86422903
| | - Yan-Zhao Fang
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University Nanchang 330013 P. R. China +86-791-86422903 +86-791-86422903
| | - Jing-Xuan Tian
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University Nanchang 330013 P. R. China +86-791-86422903 +86-791-86422903
| | - Qiang Xiao
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University Nanchang 330013 P. R. China +86-791-86422903 +86-791-86422903
| | - Xiang-Juan Kong
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University Nanchang 330013 P. R. China +86-791-86422903 +86-791-86422903
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479
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Zhang Y, Liu Y, Gong H, Wu L. Quantitative lung lesion features and temporal changes on chest CT in patients with common and severe SARS-CoV-2 pneumonia. PLoS One 2020; 15:e0236858. [PMID: 32706819 PMCID: PMC7380626 DOI: 10.1371/journal.pone.0236858] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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: 04/13/2020] [Accepted: 07/15/2020] [Indexed: 12/31/2022] Open
Abstract
The purpose of this study was to describe the temporal evolution of quantitative lung lesion features on chest computed tomography (CT) in patients with common and severe types of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pneumonia. Records of patients diagnosed with SARS-CoV-2 pneumonia were reviewed retrospectively from 24 January 2020 to 15 March 2020. Patients were classified into common and severe groups according to the diagnostic criteria of severe pneumonia. The quantitative CT features of lung lesions were automatically calculated using artificial intelligence algorithms, and the percentages of ground-glass opacity volume (PGV), consolidation volume (PCV) and total lesion volume (PTV) were determined in both lungs. PGV, PCV and PTV were analyzed based on the time from the onset of initial symptoms in the common and severe groups. In the common group, PTV increased slowly and peaked at approximately 12 days from the onset of the initial symptoms. In the severe group, PTV peaked at approximately 17 days. The severe pneumonia group exhibited increased PGV, PCV and PTV compared with the common group. These features started to appear in Stage 2 (4-7 days from onset of initial symptoms) and were observed in all subsequent stages (p<0.05). In severe SARS-CoV-2 pneumonia patients, PGV, PCV and PTV began to significantly increase in Stage 2 and decrease in Stage 5 (22-30 days). Compared with common SARS-CoV-2 pneumonia patients, the patients in the severe group exhibited increased PGV, PCV and PTV as well as a later peak time of lesion and recovery time.
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Affiliation(s)
- Yue Zhang
- Health Management Center, The First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi Province, China
| | - Ying Liu
- Department of Emergency Medicine, The First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi Province, China
| | - Honghan Gong
- Department of Radiology, The First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi Province, China
| | - Lin Wu
- Department of Radiology, The First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi Province, China
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480
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Wang L, Deng H, Chen X, Li C, Yi F, Wei Y, Zhang W. Talc pleurodesis versus indwelling pleural catheter among patients with malignant pleural effusion: a meta-analysis of randomized controlled trials. World J Surg Oncol 2020; 18:184. [PMID: 32703255 PMCID: PMC7379784 DOI: 10.1186/s12957-020-01940-6] [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: 05/05/2020] [Accepted: 06/29/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Talc pleurodesis (TP) and indwelling pleural catheter (IPC) are used for the management of malignant pleural effusion (MPE). Our meta-analysis was conducted to assess the efficacy and safety of both treatments among patients with MPE. METHODS We acquired pertinent randomized controlled trials (RCTs) by searching PubMed, ScienceDirect, the Cochrane Library, Scopus, Ovid Medline, Embase, Web of Science, and Google Scholar. The endpoints included survival, pleurodesis rates, total drainage, further pleural interventions, hospital days, symptoms, quality of life (QoL), and complications. RESULTS We included four high-quality RCTs. Both treatments were effective among patients with MPE and no previous pleurodesis, with comparable survival and equivalent relief of breathlessness. Additionally, the TP group had higher pleurodesis rates, less total drainage, and fewer all-grade complications (including catheter blockage and cellulitis). However, patients in the TP group had more pleural procedures and relatively longer hospital stays. Additionally, no apparent difference was detected in QoL. CONCLUSIONS TP has better pleurodesis rates, less total drainage, and fewer all-grade complications. However, TP has more pleural procedures and is not feasible for patients with trapped lungs. IPC has fewer further pleural interventions and shorter hospital stays. However, IPC has the nuisance of long-term in situ draining.
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Affiliation(s)
- Li Wang
- Department of Thoracic Surgery, The Second Affiliated Hospital of Nanchang University, No. 1, Minde Rd, Nanchang, 330006, People's Republic of China
- Department of Respiratory and Critical Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China
- Jiangxi Medical College, Nanchang University, Nanchang, 330006, China
| | - Huan Deng
- Department of Thoracic Surgery, The Second Affiliated Hospital of Nanchang University, No. 1, Minde Rd, Nanchang, 330006, People's Republic of China
| | - Xinling Chen
- Department of Respiratory and Critical Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China
- Jiangxi Medical College, Nanchang University, Nanchang, 330006, China
| | - Can Li
- Department of Respiratory and Critical Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China
- Jiangxi Medical College, Nanchang University, Nanchang, 330006, China
| | - Fengming Yi
- Department of Oncology, The Second Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Yiping Wei
- Department of Thoracic Surgery, The Second Affiliated Hospital of Nanchang University, No. 1, Minde Rd, Nanchang, 330006, People's Republic of China.
| | - Wenxiong Zhang
- Department of Thoracic Surgery, The Second Affiliated Hospital of Nanchang University, No. 1, Minde Rd, Nanchang, 330006, People's Republic of China.
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Zhou J, Zhang W, Wei C, Zhang Z, Yi D, Peng X, Peng J, Yin R, Zheng Z, Qi H, Wei Y, Wen T. Weighted correlation network bioinformatics uncovers a key molecular biosignature driving the left-sided heart failure. BMC Med Genomics 2020; 13:93. [PMID: 32620106 PMCID: PMC7333416 DOI: 10.1186/s12920-020-00750-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Accepted: 06/25/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Left-sided heart failure (HF) is documented as a key prognostic factor in HF. However, the relative molecular mechanisms underlying left-sided HF is unknown. The purpose of this study is to unearth significant modules, pivotal genes and candidate regulatory components governing the progression of left-sided HF by bioinformatical analysis. METHODS A total of 319 samples in GSE57345 dataset were used for weighted gene correlation network analysis (WGCNA). ClusterProfiler package in R was used to conduct functional enrichment for genes uncovered from the modules of interest. Regulatory networks of genes were built using Cytoscape while Enrichr database was used for identification of transcription factors (TFs). The MCODE plugin was used for identifying hub genes in the modules of interest and their validation was performed based on GSE1869 dataset. RESULTS A total of six significant modules were identified. Notably, the blue module was confirmed as the most crucially associated with left-sided HF, ischemic heart disease (ISCH) and dilated cardiomyopathy (CMP). Functional enrichment conveyed that genes belonging to this module were mainly those driving the extracellular matrix-associated processes such as extracellular matrix structural constituent and collagen binding. A total of seven transcriptional factors, including Suppressor of Zeste 12 Protein Homolog (SUZ12) and nuclear factor erythroid 2 like 2 (NFE2L2), adrenergic receptor (AR), were identified as possible regulators of coexpression genes identified in the blue module. A total of three key genes (OGN, HTRA1 and MXRA5) were retained after validation of their prognostic value in left-sided HF. The results of functional enrichment confirmed that these key genes were primarily involved in response to transforming growth factor beta and extracellular matrix. CONCLUSION We uncovered a candidate gene signature correlated with HF, ISCH and CMP in the left ventricle, which may help provide better prognosis and therapeutic decisions and in HF, ISCH and CMP patients.
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Affiliation(s)
- Jiamin Zhou
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17 Yongwaizheng Street, Nanchang, 330006, Jiangxi province, China
- Hypertension Research Institute of Jiangxi Province, Nanchang, 330006, China
| | - Wei Zhang
- Department of Respiratory Medicine, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Chunying Wei
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17 Yongwaizheng Street, Nanchang, 330006, Jiangxi province, China
- Hypertension Research Institute of Jiangxi Province, Nanchang, 330006, China
| | - Zhiliang Zhang
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17 Yongwaizheng Street, Nanchang, 330006, Jiangxi province, China
- Hypertension Research Institute of Jiangxi Province, Nanchang, 330006, China
| | - Dasong Yi
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17 Yongwaizheng Street, Nanchang, 330006, Jiangxi province, China
- Hypertension Research Institute of Jiangxi Province, Nanchang, 330006, China
| | - Xiaoping Peng
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17 Yongwaizheng Street, Nanchang, 330006, Jiangxi province, China
- Hypertension Research Institute of Jiangxi Province, Nanchang, 330006, China
| | - Jingtian Peng
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17 Yongwaizheng Street, Nanchang, 330006, Jiangxi province, China
- Hypertension Research Institute of Jiangxi Province, Nanchang, 330006, China
| | - Ran Yin
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17 Yongwaizheng Street, Nanchang, 330006, Jiangxi province, China
- Hypertension Research Institute of Jiangxi Province, Nanchang, 330006, China
| | - Zeqi Zheng
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17 Yongwaizheng Street, Nanchang, 330006, Jiangxi province, China
- Hypertension Research Institute of Jiangxi Province, Nanchang, 330006, China
| | - Hongmei Qi
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17 Yongwaizheng Street, Nanchang, 330006, Jiangxi province, China
- Hypertension Research Institute of Jiangxi Province, Nanchang, 330006, China
| | - Yunfeng Wei
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17 Yongwaizheng Street, Nanchang, 330006, Jiangxi province, China
- Hypertension Research Institute of Jiangxi Province, Nanchang, 330006, China
| | - Tong Wen
- Department of Cardiology, The First Affiliated Hospital of Nanchang University, No. 17 Yongwaizheng Street, Nanchang, 330006, Jiangxi province, China.
- Hypertension Research Institute of Jiangxi Province, Nanchang, 330006, China.
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Li C, Ge S, Zhou J, Peng J, Chen J, Dong S, Feng X, Su N, Zhang L, Zhong Y, Deng L, Tang X. Exploration of the effects of the CYCLOPS gene RBM17 in hepatocellular carcinoma. PLoS One 2020; 15:e0234062. [PMID: 32497093 PMCID: PMC7272028 DOI: 10.1371/journal.pone.0234062] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 05/18/2020] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is one of the most lethal and malignant tumours worldwide. New therapeutic targets for HCC are urgently needed. CYCLOPS (copy number alterations yielding cancer liabilities owing to partial loss) genes have been noted to be associated with cancer-targeted therapies. Therefore, we intended to explore the effects of the CYCLOPS gene RBM17 on HCC oncogenesis to determine if it could be further used for targeted therapy. METHODS We collected data on 12 types of cancer from the Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) queries for comparison with adjacent non-tumour tissues. RBM17 expression levels, clinicopathological factors and survival times were analysed. RNAseq data were downloaded from the Encyclopaedia of DNA Elements database for molecular mechanism exploration. Two representative HCC cell models were built to observe the proliferation capacity of HCC cells when RBM17 expression was inhibited by shRBM17. Cell cycle progression and apoptosis were also examined to investigate the pathogenesis of RBM17. RESULTS Based on 6,136 clinical samples, RBM17 was markedly overexpressed in most cancers, especially HCC. Moreover, data from 442 patients revealed that high RBM17 expression levels were related to a worse prognosis. Overexpression of RBM17 was related to the iCluster1 molecular subgroup, TNM stage, and histologic grade. Pathway analysis of RNAseq data suggested that RBM17 was involved in mitosis. Further investigation revealed that the proliferation rates of HepG2 (P = 0.003) and SMMC-7721 (P = 0.030) cells were significantly reduced when RBM17 was knocked down. In addition, RBM17 knockdown also arrested the progression of the cell cycle, causing cells to halt at the G2/M phase. Increased apoptosis rates were also found in vitro. CONCLUSION These results suggest that RBM17 is a potential therapeutic target for HCC treatment.
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Affiliation(s)
- Can Li
- Queen Mary School, Medical College of Nanchang University, Nanchang, China
| | - Shanghua Ge
- Jiangxi Provincial Key Laboratory of Preventive Medicine, School of Public Health, Nanchang University, Nanchang, China
| | - Jialu Zhou
- The Second Clinical College, Medical College of Nanchang University, Nanchang, China
| | - Jie Peng
- Jiangxi Provincial Key Laboratory of Preventive Medicine, School of Public Health, Nanchang University, Nanchang, China
| | - Jiayu Chen
- The Fourth Clinical College, Medical College of Nanchang University, Nanchang, China
| | - Shuhui Dong
- The Fourth Clinical College, Medical College of Nanchang University, Nanchang, China
| | - Xiaofang Feng
- The Fourth Clinical College, Medical College of Nanchang University, Nanchang, China
| | - Ning Su
- Jiangxi Provincial Key Laboratory of Preventive Medicine, School of Public Health, Nanchang University, Nanchang, China
| | - Lunli Zhang
- Department of Infectious Diseases & Key Laboratory of Liver Regenerative Medicine of Jiangxi Province, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yuanbin Zhong
- Department of Infectious Diseases & Key Laboratory of Liver Regenerative Medicine of Jiangxi Province, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Libin Deng
- Jiangxi Provincial Key Laboratory of Preventive Medicine, School of Public Health, Nanchang University, Nanchang, China
- College of Basic Medical Science, Nanchang University, Nanchang, China
| | - Xiaoli Tang
- College of Basic Medical Science, Nanchang University, Nanchang, China
- * E-mail:
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Liu Y, Tan M, Zhang Y, Huang W, Min L, Peng S, Yuan K, Qiu L, Min W. Targeted Gene Silencing BRAF Synergized Photothermal Effect Inhibits Hepatoma Cell Growth Using New GAL-GNR-siBRAF Nanosystem. Nanoscale Res Lett 2020; 15:116. [PMID: 32449085 PMCID: PMC7246281 DOI: 10.1186/s11671-020-03340-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 05/01/2020] [Indexed: 05/04/2023]
Abstract
Liver cancer is one of the most common malignancies worldwide. The RAF kinase inhibitors are effective in the treatment of hepatocellular carcinoma (HCC); therefore, inhibition of the BRAF/MEK/ERK pathway has become a new therapeutic strategy for novel HCC therapy. However, targeted specific delivery systems for tumors are still significant obstacle to clinical applications. Galactose (GAL) can target the asialoglycoprotein receptor (ASGPR) that is highly expressed on liver cancer cells. In this study, we designed a novel multifunctional nanomaterial GAL-GNR-siBRAF which consists of three parts, GAL as the liver cancer-targeting moiety, golden nanorods (GNR) offering photothermal capability under near infrared light, and siRNA specifically silencing BRAF (siBRAF). The nanocarrier GAL-GNR-siBRAF showed high siRNA loading capacity and inhibited the degradation of siRNA in serum. Compared with naked gold nanorods, GAL-GNR-siBRAF possessed lower biotoxicity and higher efficacy of gene silencing. Treatment with GAL-GNR-siBRAF significantly downregulated the expression of BRAF and impaired proliferation, migration, and invasion of liver cancer cells. Moreover, combinatorial photothermal effects and BRAF knockdown by GAL-GNR-siBRAF effectively given rise to tumor cell death. Therefore, our study developed a new type of targeted multi-functional nanomaterial GAL-GNR-siBRAF for the treatment of liver cancer, which provides ideas for the development of new clinical treatment methods.
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Affiliation(s)
- Yanling Liu
- Institute of Immunotherapy, Nanchang University, Nanchang, 330006 Jiangxi China
- Jiangxi University of Technology, Nanchang, Jiangxi 330098 China
- Jiangxi Institute of Medical Sciences Nanchang, Nanchang, 330006 Jiangxi China
| | - Manman Tan
- Institute of Immunotherapy, Nanchang University, Nanchang, 330006 Jiangxi China
| | - Yujuan Zhang
- Institute of Immunotherapy, Nanchang University, Nanchang, 330006 Jiangxi China
| | - Wei Huang
- Institute of Immunotherapy, Nanchang University, Nanchang, 330006 Jiangxi China
| | - Liangliang Min
- Institute of Immunotherapy, Nanchang University, Nanchang, 330006 Jiangxi China
| | - Shanshan Peng
- Jiangxi Institute of Medical Sciences Nanchang, Nanchang, 330006 Jiangxi China
| | - Keng Yuan
- Jiangxi Institute of Medical Sciences Nanchang, Nanchang, 330006 Jiangxi China
| | - Li Qiu
- Department of Endocrinology and Metabolism, Peking University People’s Hospital, Beijing, China
| | - Weiping Min
- Institute of Immunotherapy, Nanchang University, Nanchang, 330006 Jiangxi China
- Jiangxi University of Technology, Nanchang, Jiangxi 330098 China
- Jiangxi Institute of Medical Sciences Nanchang, Nanchang, 330006 Jiangxi China
- Department of Surgery, Pathology and Oncology, University of Western Ontario, London, N6A 5A5 Canada
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484
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Cheng ZQ, Li ZW, Yao R, Xiong KW, Cheng GL, Zhou YH, Luo X, Liu ZM. Improved SERS Performance and Catalytic Activity of Dendritic Au/Ag Bimetallic Nanostructures Based on Ag Dendrites. Nanoscale Res Lett 2020; 15:117. [PMID: 32449120 PMCID: PMC7246272 DOI: 10.1186/s11671-020-03347-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 05/10/2020] [Indexed: 05/16/2023]
Abstract
Bimetallic nanomaterials, which exhibit a combination of the properties associated with two different metals, have enabled innovative applications in nanoscience and nanotechnology. Here, we introduce the fabrication of dendritic Au/Ag bimetallic nanostructures for surface-enhanced Raman scattering (SERS) and catalytic applications. The dendritic Au/Ag bimetallic nanostructures were prepared by combining the electrochemical deposition and replacement reaction. The formation of Au nanoparticle shell on the surface of Ag dendrites greatly improves the stability of dendritic nanostructures, followed by a significant SERS enhancement. In addition, these dendritic Au/Ag bimetallic nanostructures are extremely efficient in degrading 4-nitrophenol (4-NP) compared with the initial dendritic Ag nanostructures. These experimental results indicate the great potential of the dendritic Au/Ag bimetallic nanostructures for the development of excellent SERS substrate and highly efficient catalysts.
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Affiliation(s)
- Zi-Qiang Cheng
- Department of Applied Physics, School of Science, East China Jiaotong University, Nanchang, 330013 People’s Republic of China
- Materials Interfaces Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055 People’s Republic of China
| | - Zhi-Wen Li
- Department of Applied Physics, School of Science, East China Jiaotong University, Nanchang, 330013 People’s Republic of China
| | - Rui Yao
- Department of Applied Physics, School of Science, East China Jiaotong University, Nanchang, 330013 People’s Republic of China
| | - Kuang-Wei Xiong
- Department of Applied Physics, School of Science, East China Jiaotong University, Nanchang, 330013 People’s Republic of China
| | - Guang-Ling Cheng
- Department of Applied Physics, School of Science, East China Jiaotong University, Nanchang, 330013 People’s Republic of China
| | - Yan-Hong Zhou
- Department of Applied Physics, School of Science, East China Jiaotong University, Nanchang, 330013 People’s Republic of China
| | - Xin Luo
- Department of Applied Physics, School of Science, East China Jiaotong University, Nanchang, 330013 People’s Republic of China
| | - Zhi-Min Liu
- Department of Applied Physics, School of Science, East China Jiaotong University, Nanchang, 330013 People’s Republic of China
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485
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Zhang Y, Liu Y, Zhang W, Tang Q, Zhou Y, Li Y, Rong T, Wang H, Chen Y. Isolated cell-bound membrane vesicles (CBMVs) as a novel class of drug nanocarriers. J Nanobiotechnology 2020; 18:69. [PMID: 32375799 PMCID: PMC7204042 DOI: 10.1186/s12951-020-00625-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 04/27/2020] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Cell-bound membrane vesicles (CBMVs) are a type of membrane vesicles different from the well-known extracellular vesicles (EVs). In recent years, the applications of EVs as drug delivery systems have been studied widely. A question may arise whether isolated CBMVs also have the possibility of being recruited as a drug delivery system or nanocarrier? METHODS To test the possibility, CBMVs were isolated/purified from the surfaces of cultured endothelial cells, loaded with a putative antitumor drug doxorubicin (Dox), and characterized. Subsequently, cellular experiments and animal experiments using mouse models were performed to determine the in vitro and in vivo antitumor effects of Dox-loaded CBMVs (Dox-CBMVs or Dox@CBMVs), respectively. RESULTS Both Dox-free and Dox-loaded CBMVs were globular-shaped and nanometer-sized with an average diameter of ~ 300-400 nm. Dox-CBMVs could be internalized by cells and could kill multiple types of cancer cells. The in vivo antitumor ability of Dox-CBMVs also was confirmed. Moreover, Quantifications of blood cells (white blood cells and platelets) and specific enzymes (aspartate aminotransferase and creatine kinase isoenzymes) showed that Dox-CBMVs had lower side effects compared with free Dox. CONCLUSIONS The data show that the CBMV-entrapped Doxorubicin has the antitumor efficacy with lower side effects. This study provides evidence supporting the possibility of isolated cell-bound membrane vesicles as a novel drug nanocarrier.
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Affiliation(s)
- Yang Zhang
- Jiangxi Key Laboratory for Microscale Interdisciplinary Study, Institute for Advanced Study, Nanchang University, 999 Xuefu Ave., Honggutan District, Nanchang, Jiangxi 330031 People’s Republic of China
- School of Materials Science and Engineering, Nanchang University, Nanchang, Jiangxi 330031 People’s Republic of China
| | - Yang Liu
- Jiangxi Key Laboratory for Microscale Interdisciplinary Study, Institute for Advanced Study, Nanchang University, 999 Xuefu Ave., Honggutan District, Nanchang, Jiangxi 330031 People’s Republic of China
| | - Wendiao Zhang
- Jiangxi Key Laboratory for Microscale Interdisciplinary Study, Institute for Advanced Study, Nanchang University, 999 Xuefu Ave., Honggutan District, Nanchang, Jiangxi 330031 People’s Republic of China
| | - Qisheng Tang
- Jiangxi Key Laboratory for Microscale Interdisciplinary Study, Institute for Advanced Study, Nanchang University, 999 Xuefu Ave., Honggutan District, Nanchang, Jiangxi 330031 People’s Republic of China
| | - Yun Zhou
- Jiangxi Key Laboratory for Microscale Interdisciplinary Study, Institute for Advanced Study, Nanchang University, 999 Xuefu Ave., Honggutan District, Nanchang, Jiangxi 330031 People’s Republic of China
| | - Yuanfang Li
- Jiangxi Key Laboratory for Microscale Interdisciplinary Study, Institute for Advanced Study, Nanchang University, 999 Xuefu Ave., Honggutan District, Nanchang, Jiangxi 330031 People’s Republic of China
| | - Tong Rong
- Jiangxi Key Laboratory for Microscale Interdisciplinary Study, Institute for Advanced Study, Nanchang University, 999 Xuefu Ave., Honggutan District, Nanchang, Jiangxi 330031 People’s Republic of China
| | - Huaying Wang
- Jiangxi Key Laboratory for Microscale Interdisciplinary Study, Institute for Advanced Study, Nanchang University, 999 Xuefu Ave., Honggutan District, Nanchang, Jiangxi 330031 People’s Republic of China
| | - Yong Chen
- Jiangxi Key Laboratory for Microscale Interdisciplinary Study, Institute for Advanced Study, Nanchang University, 999 Xuefu Ave., Honggutan District, Nanchang, Jiangxi 330031 People’s Republic of China
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Ren L, Yuan L, Gao Q, Teng R, Wang J, Epstein IR. Chemomechanical origin of directed locomotion driven by internal chemical signals. Sci Adv 2020; 6:eaaz9125. [PMID: 32426481 PMCID: PMC7195122 DOI: 10.1126/sciadv.aaz9125] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 02/10/2020] [Indexed: 05/30/2023]
Abstract
Asymmetry in the interaction between an individual and its environment is generally considered essential for the directional properties of active matter, but can directional locomotions and their transitions be generated only from intrinsic chemical dynamics and its modulation? Here, we examine this question by simulating the locomotion of a bioinspired active gel in a homogeneous environment. We find that autonomous directional locomotion emerges in the absence of asymmetric interaction with the environment and that a transition between modes of gel locomotion can be induced by adjusting the spatially uniform intensity of illumination or certain kinetic and mechanical system parameters. The internal wave dynamics and its structural modulation act as the impetus for signal-driven active locomotion in a manner similar to the way in which an animal's locomotion is generated via driving by nerve pulses. Our results may have implications for the development of soft robots and biomimetic materials.
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Affiliation(s)
- Lin Ren
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221116, People’s Republic of China
| | - Ling Yuan
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221116, People’s Republic of China
| | - Qingyu Gao
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221116, People’s Republic of China
- Department of Chemistry and Volen Center for Complex Systems, Brandeis University, Waltham, MA 02454-9110, USA
| | - Rui Teng
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221116, People’s Republic of China
| | - Jing Wang
- College of Chemical Engineering, China University of Mining and Technology, Xuzhou 221116, People’s Republic of China
| | - Irving R. Epstein
- Department of Chemistry and Volen Center for Complex Systems, Brandeis University, Waltham, MA 02454-9110, USA
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Zhou Y, Fu X, Zheng Z, Ren Y, Zheng Z, Zhang B, Yuan M, Duan J, Li M, Hong T, Lu G, Zhou D. Identification of gene co-expression modules and hub genes associated with the invasiveness of pituitary adenoma. Endocrine 2020; 68:377-389. [PMID: 32342269 DOI: 10.1007/s12020-020-02316-2] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 04/13/2020] [Indexed: 10/24/2022]
Abstract
In pituitary adenoma (PA), invasiveness is the main cause of recurrence and poor prognosis. Thus, identifying specific biomarkers for diagnosis and effective treatment of invasive PAs is of great clinical significance. In this study, from the Gene Expression Omnibus database, we obtained and combined several microarrays of PA by the "sva" R package. Weighted gene co-expression network analysis was performed to construct a scale-free topology model and analyze the relationships between the modules and clinical traits. Our analysis results indicated that three key modules (dark turquoise, saddle brown, and steel blue) were associated with the invasiveness of PA. Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis and Gene Ontology analysis were performed for the functional annotation of the key modules. In addition, the hub genes in the three modules were identified and screened by differential expression analysis between normal samples and PA samples. Three upregulated differentially expressed genes (DGAT2, PIGZ, and DHRS2) were identified. The Fisher's exact test and receiver operating characteristic curve were used to validate the capability of these genes to distinguish invasive traits, and transcription factor interaction networks were used to further explore the underlying mechanisms of the three genes. Moreover, a lower expression level of DGAT2 in invasive PA tissue than in noninvasive PA tissue was validated by quantitative reverse transcription-polymerase chain reaction. In general, this study contributes to potential molecular biomarkers of invasive PAs and provides a broader perspective for diagnosis and new therapeutic targets for the invasive PAs.
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Affiliation(s)
- Yuancheng Zhou
- Department of Neurosurgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, PR China
- The First Clinical Medical College of Nanchang University, Nanchang, Jiangxi, PR China
| | - Xiaorui Fu
- Department of Neurosurgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, PR China
- Medical Department, Queen Mary College , Nanchang University, Nanchang, Jiangxi, China
| | - Zhicheng Zheng
- Department of Neurosurgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, PR China
- The Fourth Clinical Medical College of Nanchang University, Nanchang, Jiangxi, PR China
| | - Yu Ren
- Department of Neurosurgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, PR China
- The First Clinical Medical College of Nanchang University, Nanchang, Jiangxi, PR China
| | - Zijian Zheng
- Department of Neurosurgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, PR China
- The First Clinical Medical College of Nanchang University, Nanchang, Jiangxi, PR China
| | - Bohan Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, PR China
- The First Clinical Medical College of Nanchang University, Nanchang, Jiangxi, PR China
| | - Min Yuan
- Shanggao County People's Hospital, Yichun, Jiangxi, PR China
| | - Jian Duan
- Department of Neurosurgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, PR China
| | - Meihua Li
- Department of Neurosurgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, PR China
| | - Tao Hong
- Department of Neurosurgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, PR China
| | - Guohui Lu
- Department of Neurosurgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, PR China.
| | - Dongwei Zhou
- Department of Neurosurgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, PR China.
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Abstract
OBJECTIVE The detailed associations between type 2 diabetes (T2D) and total stroke and magnesium intake as well as the dose-response trend should be updated in a timely manner. DESIGN Systematic review and meta-analyses. DATA SOURCES PubMed, Embase, Cochrane Library, Web of Science and ClinicalTrials.gov were rigorously searched from inception to 15 March 2019. ELIGIBILITY CRITERIA Prospective cohort studies investigating these two diseases were included. DATA SYNTHESIS Relative risk (RR) and 95% CI in random effects models as well as absolute risk (AR) were pooled to calculate the risk of T2D and stroke. Methodological quality was assessed by the Newcastle-Ottawa Scale. RESULTS Forty-one studies involving 53 cohorts were included. The magnitude of the risk was significantly reduced by 22% for T2D (RR 0.78 (95% CI 0.75 to 0.81); p<0.001; AR reduction 0.120%), 11% for total stroke (RR 0.89 (95% CI 0.83 to 0.94); p<0.001; AR reduction 0.281%) and 12% for ischaemic stroke (RR 0.88 (95% CI 0.81 to 0.95); p=0.001; AR reduction 0.246%) when comparing the highest magnesium intake to the lowest. The inverse association still existed when studies on T2D were adjusted for cereal fibre (RR 0.79; p<0.001) and those on total stroke were adjusted for calcium (RR 0.89; p=0.040). Subgroup analyses suggested that the risk for total and ischaemic stroke was significantly decreased in females, participants with ≥25 mg/m2 body mass index and those with ≥12-year follow-up; the reduced risk in Asians was not as notable as that in North American and European populations. CONCLUSIONS Magnesium intake has significantly inverse associations with T2D and total stroke in a dose-dependent manner. Feasible magnesium-rich dietary patterns may be highly beneficial for specific populations and could be highlighted in the primary T2D and total stroke prevention strategies disseminated to the public. PROSPERO REGISTRATION NUMBER CRD42018092690.
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Affiliation(s)
- Binghao Zhao
- Department of Cardio-Thoracic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Lianli Zeng
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jiani Zhao
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Qian Wu
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yifei Dong
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Fang Zou
- Department of Endocrinology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Li Gan
- Department of Neurology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yiping Wei
- Department of Cardio-Thoracic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Wenxiong Zhang
- Department of Cardio-Thoracic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
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489
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Kang X, Cai J, Chen Y, Yan Y, Yang S, He R, Wang D, Zhu Y. Pod-shattering characteristics differences between two groups of soybeans are associated with specific changes in gene expression. Funct Integr Genomics 2020; 20:201-210. [PMID: 31456133 DOI: 10.1007/s10142-019-00702-2] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 07/10/2019] [Accepted: 07/22/2019] [Indexed: 12/01/2022]
Abstract
Soybean is an economically important leguminous crop, and pod dehiscence of soybean could cause huge yield loss. In this study, we measured fruit-cracking forces and percentages of dehisced pods for ten soybean accessions, then separated them into two groups as shattering-sensitive (SS) and shattering-resistant (SR) soybeans. Pod transcriptomes from these two groups were analyzed, and 225 differentially expressed genes (DEGs) were identified between SS and SR soybeans. Some of these DEGs have been previously reported to be associated with pod dehiscence in soybean. The expression patterns of selected DEGs were validated by real-time quantitative reverse transcription PCR, which confirmed the expression changes found in RNA-seq analysis. We also de novo identified 246 soybean pod-long intergenic ncRNAs (lincRNAs), 401 intronic lncRNAs, and 23 antisense lncRNAs from these transcriptomes. Furthermore, genes and lincRNAs co-expression network analysis showed that there are distinct expression patterns between SS and SR soybeans in some co-expression modules. In conclusion, we systematically investigated potential genes and molecular pathways as candidates for differences in soybean pod dehiscence and will provide a useful resource for molecular breeding of soybeans.
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Affiliation(s)
- Xiang Kang
- Key Laboratory of Molecular Biology and Gene Engineering in Jiangxi Province, College of Life Science, Nanchang University, Nanchang, 330031, China
| | - Jingjing Cai
- Key Laboratory of Molecular Biology and Gene Engineering in Jiangxi Province, College of Life Science, Nanchang University, Nanchang, 330031, China
| | - Yexin Chen
- Key Laboratory of Molecular Biology and Gene Engineering in Jiangxi Province, College of Life Science, Nanchang University, Nanchang, 330031, China
| | - Yuchuan Yan
- Key Laboratory of Molecular Biology and Gene Engineering in Jiangxi Province, College of Life Science, Nanchang University, Nanchang, 330031, China
| | - Songtao Yang
- Key Laboratory of Molecular Biology and Gene Engineering in Jiangxi Province, College of Life Science, Nanchang University, Nanchang, 330031, China
| | - Reqing He
- Key Laboratory of Molecular Biology and Gene Engineering in Jiangxi Province, College of Life Science, Nanchang University, Nanchang, 330031, China
| | - Dong Wang
- Key Laboratory of Molecular Biology and Gene Engineering in Jiangxi Province, College of Life Science, Nanchang University, Nanchang, 330031, China.
| | - Youlin Zhu
- Key Laboratory of Molecular Biology and Gene Engineering in Jiangxi Province, College of Life Science, Nanchang University, Nanchang, 330031, China.
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490
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Chen S, Xue Z, Gao N, Yang X, Zang L. Perylene Diimide-Based Fluorescent and Colorimetric Sensors for Environmental Detection. Sensors (Basel) 2020; 20:E917. [PMID: 32050439 PMCID: PMC7039297 DOI: 10.3390/s20030917] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Revised: 01/23/2020] [Accepted: 02/07/2020] [Indexed: 12/15/2022]
Abstract
Perylene tetracarboxylic diimide (PDI) and its derivatives exhibit excellent thermal, chemical and optical stability, strong electron affinity, strong visible-light absorption and unique fluorescence on/off features. The combination of these features makes PDIs ideal molecular frameworks for development in a broad range of sensors for detecting environmental pollutants such as heavy metal ions (e.g., Cu2+, Cd2+, Hg2+, Pd2+, etc.), inorganic anions (e.g., F-, ClO4-, PO4-, etc.), as well as poisonous organic compounds such as nitriles, amines, nitroaromatics, benzene homologues, etc. In this review, we provide a comprehensive overview of the recent advance in research and development of PDI-based fluorescent sensors, as well as related colorimetric and multi-mode sensor systems, for environmental detection in aqueous, organic or mixed solutions. The molecular design of PDIs and structural optimization of the sensor system (regarding both sensitivity and selectivity) in response to varying analytes are discussed in detail. At the end, a perspective summary is provided covering both the key challenges and potential solutions for the future development of PDI-based optical sensors.
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Affiliation(s)
- Shuai Chen
- Flexible Electronics Innovation Institute and School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang 330013, Jiangxi, China; (S.C.); (Z.X.); (N.G.)
- Nano Institute of Utah, University of Utah, Salt Lake City, UT 84112, USA;
- Department of Materials Science and Engineering, University of Utah, Salt Lake City, UT 84112, USA
| | - Zexu Xue
- Flexible Electronics Innovation Institute and School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang 330013, Jiangxi, China; (S.C.); (Z.X.); (N.G.)
| | - Nan Gao
- Flexible Electronics Innovation Institute and School of Pharmacy, Jiangxi Science & Technology Normal University, Nanchang 330013, Jiangxi, China; (S.C.); (Z.X.); (N.G.)
| | - Xiaomei Yang
- Nano Institute of Utah, University of Utah, Salt Lake City, UT 84112, USA;
| | - Ling Zang
- Nano Institute of Utah, University of Utah, Salt Lake City, UT 84112, USA;
- Department of Materials Science and Engineering, University of Utah, Salt Lake City, UT 84112, USA
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491
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Dong Z, Zhou R, Xiong L, Li H, Liu Q, Zheng L, Guo Z, Deng Z. Preparation of a Ti 0.7W 0.3O 2/TiO 2 nanocomposite interfacial photocatalyst and its photocatalytic degradation of phenol pollutants in wastewater. Nanoscale Adv 2020; 2:425-437. [PMID: 36133969 PMCID: PMC9418697 DOI: 10.1039/c9na00478e] [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] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Accepted: 11/12/2019] [Indexed: 06/16/2023]
Abstract
A Ti0.7W0.3O2/TiO2 nanocomposite interfacial photocatalyst was designed and prepared for the photocatalytic degradation of phenol pollutants in wastewater. The detailed properties of the Ti0.7W0.3O2/TiO2 nanocomposite interface (NCI) were analyzed by XRD, SEM, EDX, DRS, UPS and XPS technologies, showing that anatase TiO2 nanospheres (NSs) were uniformly dispersed on the surface of rutile Ti0.7W0.3O2 nanoparticles (NPs) and formed the nanocomposite interface. The DRS and UPS results of 5 wt% Ti0.7W0.3O2/TiO2 NCI indicated a greatly broadened light response range with a wavelength shorter than 527 nm and a shorter band gap energy of 2.37 eV. The conduction band of TiO2 NSs, Ti0.7W0.3O2 NPs and 5 wt% Ti0.7W0.3O2/TiO2 NCI were measured based on the results of the valence band and band gap energy obtained via XPS and DRS, and then the energy level diagram of Ti0.7W0.3O2/TiO2 NCI was proposed. The photocatalytic degradation of phenol at Ti0.7W0.3O2/TiO2 NCI with different loading ratios of Ti0.7W0.3O2 NPs was investigated under optimum conditions (i.e., pH of 4.5, catalyst dosage of 0.45 g L-1 and phenol initial concentration of 95 ppm) under the illumination of ultraviolet visible light. Also, 5 wt% Ti0.7W0.3O2/TiO2 NCI exhibited the highest photocatalytic activity, with the initial rate constant (k) calculated as 0.09111 min-1. After recycling six times, Ti0.7W0.3O2/TiO2 NCI showed good stability and recyclability. The involvement of superoxide radicals in the initial reaction at Ti0.7W0.3O2/TiO2 NCI was evidenced by the use of a terephthalic acid (TA) fluorescent probe. Besides, UV-Vis spectroscopy, UHPLC-MS and GC-MS technologies were used to analyze the main intermediates in the photocatalytic degradation of phenol. The probable photocatalytic degradation mechanism of phenol at Ti0.7W0.3O2/TiO2 NCI was also proposed.
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Affiliation(s)
- Zemin Dong
- Department of Chemistry and Chemical Engineering, East China Jiao Tong University Nanchang 330013 P. R. China
- JiangXi Institute for Veterinary Drug and Feedstuffs Control Nanchang 330096 PR China
| | - Rendan Zhou
- Analysis and Testing Center, Nan Chang University Nanchang 330047 P. R. China
| | - Leyan Xiong
- Department of Chemistry and Chemical Engineering, East China Jiao Tong University Nanchang 330013 P. R. China
| | - Han Li
- CAS Key Laboratory of Crust-Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China Hefei Anhui 230026 P. R. China
| | - Qiang Liu
- Department of Chemistry and Chemical Engineering, East China Jiao Tong University Nanchang 330013 P. R. China
| | - Longzhen Zheng
- Department of Chemistry and Chemical Engineering, East China Jiao Tong University Nanchang 330013 P. R. China
| | - Zanru Guo
- Department of Chemistry and Chemical Engineering, East China Jiao Tong University Nanchang 330013 P. R. China
| | - Zhaoxiang Deng
- Department of Chemistry, University of Science and Technology of China Hefei Anhui 230026 P. R. China
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492
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Wu K, Liu M, He L, Tan Y. Abnormal degree centrality in delayed encephalopathy after carbon monoxide poisoning: a resting-state fMRI study. Neuroradiology 2020; 62:609-616. [PMID: 31955235 PMCID: PMC7186243 DOI: 10.1007/s00234-020-02369-0] [Citation(s) in RCA: 10] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 01/10/2020] [Indexed: 01/15/2023]
Abstract
Purpose To explore neuropathologic mechanisms in functional brain regions in patients with delayed encephalopathy after carbon monoxide poisoning (DEACMP) from the perspective of the brain network nodes by resting-state functional magnetic resonance imaging (rs-fMRI). Methods The fMRI and cognitive assessments were performed in 25 patients with DEACMP and 25 age-, sex- and education-matched healthy controls (HCs). Data analysis was performed via the degree centrality (DC) method. Then, the associations between the cognitive assessments and DC in the identified abnormal brain regions were assessed by using a correlation analysis. Results Compared with the HCs, the DEACMP patients displayed significantly decreased DC values in the right superior frontal gyrus, right precentral gyrus, right angular gyrus, right marginal gyrus, right hippocampus, and left thalamus but increased DC values in the right inferior frontal gyrus, right cingulate gyrus, left superior temporal gyrus, left medial temporal gyrus, right lingual gyrus, and right posterior cerebellar lobe, pons, and midbrain (GRF correction, voxel P value < 0.001, cluster P value < 0.01). The correlation analysis in the DEACMP group revealed that there was a negative correlation between the DC values in the right hippocampus and MMSE scores, whereas a positive correlation was observed in the right cingulate gyrus. Conclusions Patients with DEACMP exhibited abnormal degree centrality in the brain network. This finding may provide a new approach for examining the neuropathologic mechanisms underlying DEACMP.
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Affiliation(s)
- Kaifu Wu
- Department of Radiology, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China
| | - Meng Liu
- Department of Radiology, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China
| | - Laichang He
- Department of Radiology, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China
| | - Yongming Tan
- Department of Radiology, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China.
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493
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Wen F, Ye F, Xiao Z, Liao L, Li T, Jia M, Liu X, Wu X. Genome-wide survey and expression analysis of calcium-dependent protein kinase (CDPK) in grass Brachypodium distachyon. BMC Genomics 2020; 21:53. [PMID: 31948407 PMCID: PMC6966850 DOI: 10.1186/s12864-020-6475-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [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: 07/11/2019] [Accepted: 01/09/2020] [Indexed: 12/05/2022] Open
Abstract
BACKGROUND Ca2+ played as a ubiquitous secondary messenger involved in plant growth, development, and responses to various environmental stimuli. Calcium-dependent protein kinases (CDPK) were important Ca2+ sensors, which could directly translate Ca2+ signals into downstream phosphorylation signals. Considering the importance of CDPKs as Ca2+ effectors for regulation of plant stress tolerance and few studies on Brachypodium distachyon were available, it was of interest for us to isolate CDPKs from B. distachyon. RESULTS A systemic analysis of 30 CDPK family genes in B. distachyon was performed. Results showed that all BdCDPK family members contained conserved catalytic Ser/Thr protein kinase domain, autoinhibitory domain, and EF-hand domain, and a variable N-terminal domain, could be divided into four subgroup (I-IV), based upon sequence homology. Most BdCDPKs had four EF-hands, in which EF2 and EF4 revealed high variability and strong divergence from EF-hand in AtCDPKs. Synteny results indicated that large number of syntenic relationship events existed between rice and B. distachyon, implying their high conservation. Expression profiles indicated that most of BdCDPK genes were involved in phytohormones signal transduction pathways and regulated physiological process in responding to multiple environmental stresses. Moreover, the co-expression network implied that BdCDPKs might be both the activator and the repressor involved in WRKY transcription factors or MAPK cascade genes mediated stress response processes, base on their complex regulatory network. CONCLUSIONS BdCDPKs might play multiple function in WRKY or MAPK mediated abiotic stresses response and phytohormone signaling transduction in B. distachyon. Our genomics analysis of BdCDPKs could provide fundamental information for further investigation the functions of CDPKs in integrating Ca2+ signalling pathways in response to environments stresses in B. distachyon.
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Affiliation(s)
- Feng Wen
- School of Pharmacy and Life Science, Jiujiang University, Jiujiang, China.
| | - Feng Ye
- School of Pharmacy and Life Science, Jiujiang University, Jiujiang, China
| | - Zhulong Xiao
- School of Pharmacy and Life Science, Jiujiang University, Jiujiang, China
| | - Liang Liao
- School of Pharmacy and Life Science, Jiujiang University, Jiujiang, China
| | - Tongjian Li
- School of Pharmacy and Life Science, Jiujiang University, Jiujiang, China
| | - Mingliang Jia
- School of Pharmacy and Life Science, Jiujiang University, Jiujiang, China
| | - Xinsheng Liu
- School of Pharmacy and Life Science, Jiujiang University, Jiujiang, China
| | - Xiaozhu Wu
- School of Pharmacy and Life Science, Jiujiang University, Jiujiang, China.
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494
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Xue M, Zhou D, Ji Y, Xie Y, Li C, Zhao J. The polydopamine-enhanced superadhesion and fracture strength of honeycomb polyurethane porous membranes. RSC Adv 2020; 10:1639-1647. [PMID: 35494704 PMCID: PMC9047967 DOI: 10.1039/c9ra07887h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Accepted: 11/28/2019] [Indexed: 12/11/2022] Open
Abstract
The superhydrophobic properties of biological surfaces in nature have attracted extensive attention in scientific and industrial circles. Relative to the rolling superhydrophobic state of lotus leaves, the adhesive superhydrophobic state of geckos and Parthenocissus tricuspidata is also significant in many fields. In this work, polydopamine (PDA) with its excellent biological compatibility and strong adhesion was selected as a substance to simulate the secretion of the suckers of P. tricuspidata and it was precipitated at the surface of honeycomb polyurethane porous membranes (PUPM). The results demonstrated that the honeycomb PUPM, as prepared, displayed special super-adhesion properties similar to those of geckos and P. tricuspidata. PDA formed via self-polymerization in aqueous solution was equivalent to a double-sided adhesive, acquiring a micro-nano structure of PDA and PUPM and displaying increased surface hydrophobicity and improved adhesion properties. Even when the surface precipitation of PDA and modification with n-dodecyl mercaptan made the contact angle increase to more than 160°, the surface adhesion to water was rather strong and remained stable. The addition of the PDA adhesive can effectively change the microporous structure of PUPM, enhancing the viscosity, and facilitating an enhancement in the fracture strength.
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Affiliation(s)
- Mingshan Xue
- School of Materials Science and Engineering, Nanchang Hangkong University Nanchang 330063 People's Republic of China +86 791 83953373 +86 791 83953408
| | - Dan Zhou
- School of Materials Science and Engineering, Nanchang Hangkong University Nanchang 330063 People's Republic of China +86 791 83953373 +86 791 83953408
| | - Yuwei Ji
- School of Materials Science and Engineering, Nanchang Hangkong University Nanchang 330063 People's Republic of China +86 791 83953373 +86 791 83953408
| | - Yu Xie
- School of Materials Science and Engineering, Nanchang Hangkong University Nanchang 330063 People's Republic of China +86 791 83953373 +86 791 83953408
- Department of Chemistry and Chemical Engineering, Liaocheng University Liaocheng 252059 People's Republic of China
| | - Changquan Li
- School of Materials and Engineering, Jiangsu University of Technology Changzhou Jiangsu 213001 People's Republic of China
| | - Jinsheng Zhao
- Department of Chemistry and Chemical Engineering, Liaocheng University Liaocheng 252059 People's Republic of China
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495
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Liu Z, Gao E, Zhang Z, Li H, Xu H, Zhang X, Luo X, Zhou F. Dual-Mode On-to-Off Modulation of Plasmon-Induced Transparency and Coupling Effect in Patterned Graphene-Based Terahertz Metasurface. Nanoscale Res Lett 2020; 15:1. [PMID: 31897852 PMCID: PMC6940413 DOI: 10.1186/s11671-019-3237-y] [Citation(s) in RCA: 100] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 12/23/2019] [Indexed: 05/25/2023]
Abstract
The plasmon-induced transparency (PIT), which is destructive interference between the superradiation mode and the subradiation mode, is studied in patterned graphene-based terahertz metasurface composed of graphene ribbons and graphene strips. As the results of finite-difference time-domain (FDTD) simulation and coupled-mode theory (CMT) fitting, the PIT can be dynamically modulated by the dual-mode. The left (right) transmission dip is mainly tailored by the gate voltage applied to graphene ribbons (stripes), respectively, meaning a dual-mode on-to-off modulator is realized. Surprisingly, an absorbance of 50% and slow-light property of 0.7 ps are also achieved, demonstrating the proposed PIT metasurface has important applications in absorption and slow-light. In addition, coupling effects between the graphene ribbons and the graphene strips in PIT metasurface with different structural parameters also are studied in detail. Thus, the proposed structure provides a new basis for the dual-mode on-to-off multi-function modulators.
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Affiliation(s)
- Zhimin Liu
- School of Science, East China Jiaotong University, Nanchang, 330013 China
- Department of Materials Science and Engineering, The Ohio State University, 2041 College Road, Columbus, OH 43210 USA
| | - Enduo Gao
- School of Science, East China Jiaotong University, Nanchang, 330013 China
| | - Zhenbin Zhang
- School of Science, East China Jiaotong University, Nanchang, 330013 China
| | - Hongjian Li
- School of Physics and Electronics, Central South University, Changsha, 410083 China
| | - Hui Xu
- School of Physics and Electronics, Central South University, Changsha, 410083 China
| | - Xiao Zhang
- School of Science, East China Jiaotong University, Nanchang, 330013 China
| | - Xin Luo
- School of Science, East China Jiaotong University, Nanchang, 330013 China
| | - Fengqi Zhou
- School of Science, East China Jiaotong University, Nanchang, 330013 China
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496
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Shi J, Lv S, Wu M, Wang X, Deng Y, Li Y, Li K, Zhao H, Zhu X, Ye M. HOTAIR-EZH2 inhibitor AC1Q3QWB upregulates CWF19L1 and enhances cell cycle inhibition of CDK4/6 inhibitor palbociclib in glioma. Clin Transl Med 2020; 10:182-198. [PMID: 32508030 PMCID: PMC7240863 DOI: 10.1002/ctm2.21] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [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] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 03/23/2020] [Accepted: 03/23/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Glioblastoma (GBM) is the most common primary tumor in the brain, and the median survival time for GBM patients is only about 14 months; therefore, there is an urgent need for new and more effective strategies. Since cell cycle disorder is a key factor in tumor progression and immortalization, there is great potential for controlling cell cycle disorders in tumor cells in GBM patients. We began to study a novel combination of AQB and palbociclib to evaluate its potential as a new therapeutic target. METHODS Protein mass spectrometry was used to identify the tumor suppressor genes up-regulated by AQB.The effects of HOTAIR - EZH2 inhibitor AQB and CDK4/6 inhibitor Palbociclib on glioma cells lines were examined in vitro and in vivo experiments. RESULTS The combination of AQB and palbociclib inhibitors has a more pronounced suppression effect on the cell cycle, especially gliomas with high expression of HOTAIR and EZH2 and low expression of CWF19L1. We performed protein mass spectrometry to identify AQB upregulated tumor suppressor genes and confirmed that CWF19L1 is regulated by H3K27ac through chromatin immunoprecipitation-quantitative PCR results. Univariate and multivariate Cox regression analysis and database analysis were performed to suggest CWF19L1 is a good prognostic factor. Our experimental results suggested that CWF19L1 can be significantly upregulated by AQB and lead to degradation of CDK4/6, resulting in G1 arrest. The combination of AQB and CDK4/6 inhibitor palbociclib is more effective in inhibiting the growth of glioma than in the single drug, both in vivo and in vitro. Similarly, we found that both AQB and palbociclib can inhibit Wnt/β-catenin signaling, and the combined use of the two inhibitors has a stronger inhibitory effect on tumor metastasis. CONCLUSIONS The combination of AQB and CDK4/6 inhibitor palbociclib has been found to have significant antitumor effects, which is likely to become a new strategy for glioma treatment.
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Affiliation(s)
- Jin Shi
- Department of NeurosurgeryThe Second Affiliated Hospital of Nanchang UniversityJiangxiP.R. China
| | - Shigang Lv
- Department of NeurosurgeryThe Second Affiliated Hospital of Nanchang UniversityJiangxiP.R. China
| | - Miaojing Wu
- Department of NeurosurgeryThe Second Affiliated Hospital of Nanchang UniversityJiangxiP.R. China
| | - Xianggan Wang
- Department of NeurosurgeryThe Second Affiliated Hospital of Nanchang UniversityJiangxiP.R. China
| | - Yan Deng
- Department of NeurologyThe Second Affiliated Hospital of Nanchang UniversityJiangxiP.R. China
| | - Yansheng Li
- Department of NeurosurgeryLaboratory of Neuro‐OncologyKey Laboratory of Post‐trauma Neuro‐repair and Regeneration in Central Nervous System Ministry of EducationTianjin Key Laboratory of InjuriesTianjin Medical University General HospitalTianjin Neurological InstituteVariations and Regeneration of Nervous SystemTianjinP.R. China
| | - Kuanxun Li
- Department of MedicineMedical College of Nanchang UniversityJiangxiP.R. China
| | - Hongyu Zhao
- Department of NeurosurgeryTongji HospitalHuazhong University of Science and TechnologyWuhanP.R. China
| | - Xingen Zhu
- Department of NeurosurgeryThe Second Affiliated Hospital of Nanchang UniversityJiangxiP.R. China
| | - Minhua Ye
- Department of NeurosurgeryThe Second Affiliated Hospital of Nanchang UniversityJiangxiP.R. China
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497
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Lei B, Liu H, Yao Z, Tang Z. Experimental study on the compressive strength, damping and interfacial transition zone properties of modified recycled aggregate concrete. R Soc Open Sci 2019; 6:190813. [PMID: 31903200 PMCID: PMC6936278 DOI: 10.1098/rsos.190813] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 10/28/2019] [Indexed: 06/10/2023]
Abstract
At present, many modification methods have been proposed to improve the performance of recycled aggregate concrete (RAC). In this study, tests on the compressive strength and damping properties of modified RAC with the addition of different proportions of recycled coarse aggregate (RCA) (0, 50, 100%), rubber powder (10, 15, 20%), steel fibre (5, 7.5, 10%) and fly ash (15, 20, 5%) are carried out. To elucidate the effect of the modification method on the interfacial transition zone (ITZ) performance of RAC, model ITZ specimens are used for push-out tests. The results show that when the replacement rate of RCA reaches 100%, the loss factor of the RAC is 6.0% higher than that of natural aggregate concrete; however, the compressive strength of the RAC decreases by 22.6%. With the addition of 20% rubber powder, the damping capacity of the modified RAC increases by 213.7%, while the compressive strength of the modified RAC decreases by 47.5%. However, with the addition of steel fibre and fly ash, both the compressive strength and loss factor of the RAC specimens increase. With a steel fibre content of 10 wt%, the compressive strength and loss factor of the RAC increase by 21.9% and 15.2%, respectively. With a fly ash content of 25 wt%, the compressive strength and loss factor of the RAC increase by 8.6% and 6.9%, respectively. This demonstrates that steel fibre and fly ash are effective in improving both the damping properties and compressive strength of RAC, and steel fibre is more effective than fly ash. Two methods were used for modification of the RAC: reinforcing the RCA through impregnation with a 0.5% polyvinyl alcohol (PVA) emulsion and nano-SiO2 solution, and strengthening the RAC integrally through the addition of fly ash as an admixture. Both of these techniques can improve the ITZ bond strength between the RAC and new mortar. Replacing 10% of the cement with fly ash in the new mortar is shown to be the best method to improve the ITZ strength.
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Affiliation(s)
- Bin Lei
- School of Civil Engineering and Architecture, Nanchang University, Nanchang, Jiangxi 330031, People's Republic of China
- Center for Built Infrastructure Research (CBIR), School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, New South Wales 2007, Australia
| | - Huajian Liu
- School of Civil Engineering and Architecture, Nanchang University, Nanchang, Jiangxi 330031, People's Republic of China
| | - Zhimin Yao
- Center for Built Infrastructure Research (CBIR), School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, New South Wales 2007, Australia
- School of Energy and Power Engineering, Wuhan University of Technology, Wuhan 430063, People's Republic of China
| | - Zhuo Tang
- Center for Built Infrastructure Research (CBIR), School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, New South Wales 2007, Australia
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498
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Li F, Liu X, Wang F, Gu Z, Tao Q, Yao C, Luo X, Nie T. Comparison between minimally invasive plate osteosynthesis and open reduction-internal fixation for proximal humeral fractures: a meta-analysis based on 1050 individuals. BMC Musculoskelet Disord 2019; 20:550. [PMID: 31739803 PMCID: PMC6862799 DOI: 10.1186/s12891-019-2936-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 11/08/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND This meta-analysis aimed to compare the clinical outcomes and complications of minimally invasive plate osteosynthesis (MIPO) and open reduction-internal fixation (ORIF) in patients with proximal humeral fractures. METHODS We searched PubMed, EMBASE, Ovid, and the Cochrane Library to identify all relevant studies from inception to April 2019. Cochrane Collaboration's Review Manage 5.3 was used for meta-analysis. RESULTS Sixteen studies involving 1050 patients (464 patients in the MIPO group and 586 patients in the ORIF group) were finally included. According to the meta-analysis, MIPO was superior to ORIF in operation time, blood loss, postoperative pain, fracture union time, and constant score. However, MIPO was associated with more exposure to radiation and axillary nerve injury. No significant differences were found in length of hospital stays and complication except for axillary nerve injury. CONCLUSION The present evidence indicates that compared to ORIF, MIPO had advantages in functional outcomes, operation time, blood loss, postoperative pain, and fracture union time for the treatment of PHFs. However, the MIPO technique had a higher rate of axillary nerve injury and longer radiation time compared to ORIF.
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Affiliation(s)
- Feilong Li
- Department of Orthopedics, the First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi China
| | - Xuqiang Liu
- Department of Orthopedics, the First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi China
| | - Fuqiang Wang
- Department of Orthopedics, the First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi China
| | - Zhiping Gu
- Department of Orthopedics, the First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi China
| | - Qianyuan Tao
- Department of Orthopedics, the First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi China
| | - Cong Yao
- Department of Orthopedics, the First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi China
| | - Xuwen Luo
- Department of Orthopedics, the First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi China
| | - Tao Nie
- Department of Orthopedics, the First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi China
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499
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Cao Z, Gao F, Zhao J, Wei X, Cheng Q, Zhong J, Lin C, Shu J, Fu C, Shen L. Bio-Based Coating Materials Derived from Acetoacetylated Soybean Oil and Aromatic Dicarboxaldehydes. Polymers (Basel) 2019; 11:E1809. [PMID: 31689971 PMCID: PMC6918255 DOI: 10.3390/polym11111809] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Revised: 10/21/2019] [Accepted: 11/01/2019] [Indexed: 11/21/2022] Open
Abstract
Bio-based coating materials were prepared from epoxidized soybean oil as a renewable source. Acetoacetylated soybean oil was synthesized by the ring-opened and transesterification reaction of epoxidized soybean oil, and its chemical structure was characterized by nuclear magnetic resonance (NMR), Fourier transform infrared spectroscopy (FTIR), gel permeation chromatography (GPC), and rheometric viscosity analyses. On the basis of acetoacetylated soybean oil, several bio-based coating materials were prepared using different aromatic dicarboxaldehydes (1,2-benzenedialdehyde, 1,3-benzenedialdehyde, 1,4-phthalaldehyde, 4,4'-biphenyldicarboxaldehyde) and characterized. The resulting films possess good performance, including the highest glass transition temperature of 54 °C, a Young's modulus of 24.91 MPa, tensile strength of 5.65 MPa, and an elongation at break of 286%. Thus, this work demonstrates the Knoevenagel condensation reaction, which is based on soybean oil as a potential newer eco-friendly raw material.
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Affiliation(s)
- Zhiyuan Cao
- Jiangxi Engineering Laboratory of Waterborne Coating, School of Chemistry and Chemical Engineering, Jiangxi Science &Technology Normal University, Nanchang 330013, China.
| | - Fei Gao
- Jiangxi Engineering Laboratory of Waterborne Coating, School of Chemistry and Chemical Engineering, Jiangxi Science &Technology Normal University, Nanchang 330013, China.
| | - Jinze Zhao
- Jiangxi Engineering Laboratory of Waterborne Coating, School of Chemistry and Chemical Engineering, Jiangxi Science &Technology Normal University, Nanchang 330013, China.
| | - Xiao Wei
- Jiangxi Engineering Laboratory of Waterborne Coating, School of Chemistry and Chemical Engineering, Jiangxi Science &Technology Normal University, Nanchang 330013, China.
| | - Qian Cheng
- Jiangxi Engineering Laboratory of Waterborne Coating, School of Chemistry and Chemical Engineering, Jiangxi Science &Technology Normal University, Nanchang 330013, China.
| | - Jiang Zhong
- Jiangxi Engineering Laboratory of Waterborne Coating, School of Chemistry and Chemical Engineering, Jiangxi Science &Technology Normal University, Nanchang 330013, China.
| | - Cong Lin
- Jiangxi Engineering Laboratory of Waterborne Coating, School of Chemistry and Chemical Engineering, Jiangxi Science &Technology Normal University, Nanchang 330013, China.
| | - Jinbing Shu
- Jiangxi Engineering Laboratory of Waterborne Coating, School of Chemistry and Chemical Engineering, Jiangxi Science &Technology Normal University, Nanchang 330013, China.
| | - Changqing Fu
- Jiangxi Engineering Laboratory of Waterborne Coating, School of Chemistry and Chemical Engineering, Jiangxi Science &Technology Normal University, Nanchang 330013, China.
| | - Liang Shen
- Jiangxi Engineering Laboratory of Waterborne Coating, School of Chemistry and Chemical Engineering, Jiangxi Science &Technology Normal University, Nanchang 330013, China.
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500
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Luo X, Cheng ZQ, Zhai X, Liu ZM, Li SQ, Liu JP, Wang LL, Lin Q, Zhou YH. A Tunable Dual-Band and Polarization-Insensitive Coherent Perfect Absorber Based on Double-Layers Graphene Hybrid Waveguide. Nanoscale Res Lett 2019; 14:337. [PMID: 31686268 PMCID: PMC6828872 DOI: 10.1186/s11671-019-3155-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Accepted: 09/12/2019] [Indexed: 05/31/2023]
Abstract
A suspended monolayer graphene has only about 2.3% absorption rate in visible and infrared band, which limits its optoelectronic applications. To significantly increase graphene's absorption efficiency, a tunable dual-band and polarization-insensitive coherent perfect absorber (CPA) is proposed in the mid-infrared regime, which contains the silicon array coupled in double-layers graphene waveguide. Based on the FDTD methods, dual-band perfect absorption peaks are achieved in 9611 nm and 9924 nm, respectively. Moreover, due to its center symmetric feature, the proposed absorber also demonstrates polarization-insensitive. Meanwhile, the coherent absorption peaks can be all-optically modulated by altering the relative phase between two reverse incident lights. Furthermore, by manipulating the Fermi energies of two graphene layers, two coherent absorption peaks can move over a wide spectrum range, and our designed CPA can also be changed from dual-band CPA to narrowband CPA. Thus, our results can find some potential applications in the field of developing nanophotonic devices with excellent performance working at the mid-infrared regime.
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Affiliation(s)
- Xin Luo
- Department of Applied Physics, School of Science, East China Jiaotong University, Nanchang, 330013 People’s Republic of China
| | - Zi-Qiang Cheng
- Department of Applied Physics, School of Science, East China Jiaotong University, Nanchang, 330013 People’s Republic of China
| | - Xiang Zhai
- Key Laboratory for Micro-Nano Optoelectronic Devices of Ministry of Education, School of Physics and Electronics, Hunan University, Changsha, 410082 China
| | - Zhi-Min Liu
- Department of Applied Physics, School of Science, East China Jiaotong University, Nanchang, 330013 People’s Republic of China
| | - Si-Qi Li
- School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Hubei, 430074 People’s Republic of China
| | - Jian-Ping Liu
- College of Physics Science and Engineering Technology, Yichun University, Yichun, 336000 Jiangxi Province China
| | - Ling-Ling Wang
- Key Laboratory for Micro-Nano Optoelectronic Devices of Ministry of Education, School of Physics and Electronics, Hunan University, Changsha, 410082 China
| | - Qi Lin
- Key Laboratory for Micro-Nano Optoelectronic Devices of Ministry of Education, School of Physics and Electronics, Hunan University, Changsha, 410082 China
| | - Yan-Hong Zhou
- Department of Applied Physics, School of Science, East China Jiaotong University, Nanchang, 330013 People’s Republic of China
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