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Zhu L, Xu Q, Liu W, Xu Q, Zhang L, Gao X, Cai J. Purification and characterization of an α-l-arabinofuranosidase, α-l-AFase, for hydrolyzed ginsenoside Rc from Bacillus subtilis. Protein Expr Purif 2024; 217:106432. [PMID: 38232795 DOI: 10.1016/j.pep.2024.106432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 12/27/2023] [Accepted: 01/08/2024] [Indexed: 01/19/2024]
Abstract
Natural ginsenoside needs to be converted into rare ginsenoside before it can be readily absorbed into the bloodstream for action. In this study, an α-l-arabinofuranosidase (α-l-AFase) gene Bsafs2 was cloned from Bacillus subtilis (B. subtilis). Bsafs2 was ligated to the expression vector pET28a(+), and the expression vector was constructed and transformed into Escherichia coli (E. coli) BL21 heterologous recombinant expression to obtain α-l-AFase. α-l-AFase can hydrolyze at the C20 site of Ginsenoside Rc to obtain rare ginsenoside Rd. Studies on the enzymatic property showed that α-l-AFase had good tolerance to ethanol, glucose, and l-arabinose. The optimum temperature of α-l-AFase was 40 °C and pH = 5.5. Kinetic parameters Km of α-l-AFase for pNPαAraf and Ginsenoside Rc were 1.93 and 8.9 mmol/L, the Vmax were 26 and 154 μmol/min/mg, the Kcat were 24.14 and 1.48 S-1, respectively. This study provides the enzyme source for the biotransformation of Ginsenoside Rc.
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Affiliation(s)
- Ling Zhu
- Yunnan Engineering Research Center of Fruit Wine, Qujing Normal University, Qujing, 655011, China
| | - Qingfang Xu
- Yunnan Engineering Research Center of Fruit Wine, Qujing Normal University, Qujing, 655011, China
| | - Weiliang Liu
- Yunnan Engineering Research Center of Fruit Wine, Qujing Normal University, Qujing, 655011, China
| | - Qihe Xu
- Yunnan Engineering Research Center of Fruit Wine, Qujing Normal University, Qujing, 655011, China
| | - Lifang Zhang
- Yunnan Engineering Research Center of Fruit Wine, Qujing Normal University, Qujing, 655011, China
| | - Xiu Gao
- Yunnan Engineering Research Center of Fruit Wine, Qujing Normal University, Qujing, 655011, China.
| | - Jian Cai
- Yunnan Engineering Research Center of Fruit Wine, Qujing Normal University, Qujing, 655011, China.
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Zhou Y, Zhang L, Zhu Z, Wang M, Li N, Qian T, Yan C, Lu J. Optimizing Intermediate Adsorption over PdM (M=Fe, Co, Ni, Cu) Bimetallene for Boosted Nitrate Electroreduction to Ammonia. Angew Chem Int Ed Engl 2024; 63:e202319029. [PMID: 38449084 DOI: 10.1002/anie.202319029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 02/28/2024] [Accepted: 03/04/2024] [Indexed: 03/08/2024]
Abstract
Electrochemical reduction of nitrate to ammonia (NO3RR) is a promising and eco-friendly strategy for ammonia production. However, the sluggish kinetics of the eight-electron transfer process and poor mechanistic understanding strongly impedes its application. To unveil the internal laws, herein, a library of Pd-based bimetallene with various transition metal dopants (PdM (M=Fe, Co, Ni, Cu)) are screened to learn their structure-activity relationship towards NO3RR. The ultra-thin structure of metallene greatly facilitates the exposure of active sites, and the transition metals dopants break the electronic balance and upshift its d-band center, thus optimizing intermediates adsorption. The anisotropic electronic characteristics of these transition metals make the NO3RR activity in the order of PdCu>PdCo≈PdFe>PdNi>Pd, and a record-high NH3 yield rate of 295 mg h-1 mgcat -1 along with Faradaic efficiency of 90.9 % is achieved in neutral electrolyte on PdCu bimetallene. Detailed studies further reveal that the moderate N-species (*NO3 and *NO2) adsorption ability, enhanced *NO activation, and reduced HER activity facilitate the NH3 production. We believe our results will give a systematic guidance to the future design of NO3RR catalysts.
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Affiliation(s)
- Yuanbo Zhou
- Collaborative Innovation Center of Suzhou Nano Science and Technology, College of Chemistry Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Suzhou, 215123, P. R. China
| | - Lifang Zhang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, 226019, P. R. China
| | - Zebin Zhu
- Collaborative Innovation Center of Suzhou Nano Science and Technology, College of Chemistry Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Suzhou, 215123, P. R. China
| | - Mengfan Wang
- Key Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical Industry, College of Energy, Soochow University, Suzhou, 215006, P. R. China
| | - Najun Li
- Collaborative Innovation Center of Suzhou Nano Science and Technology, College of Chemistry Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Suzhou, 215123, P. R. China
| | - Tao Qian
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, 226019, P. R. China
| | - Chenglin Yan
- Key Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical Industry, College of Energy, Soochow University, Suzhou, 215006, P. R. China
- School of Petrochemical Engineering, Changzhou University, Changzhou, 213164, P. R. China
| | - Jianmei Lu
- Collaborative Innovation Center of Suzhou Nano Science and Technology, College of Chemistry Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Suzhou, 215123, P. R. China
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Li Y, Xu C, Zhao F, Liu Q, Qiu X, Li M, Yang Y, Yu S, Tong H, Zhang L, Chen B, Qu L, Yu Z. Podocyte-specific Nup160 knockout mice develop nephrotic syndrome and glomerulosclerosis. Hum Mol Genet 2024; 33:667-676. [PMID: 38224683 DOI: 10.1093/hmg/ddad211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 12/15/2023] [Accepted: 12/18/2023] [Indexed: 01/17/2024] Open
Abstract
More than 60 monogenic genes mutated in steroid-resistant nephrotic syndrome (SRNS) have been identified. Our previous study found that mutations in nucleoporin 160 kD (NUP160) are implicated in SRNS. The NUP160 gene encodes a component of the nuclear pore complex. Recently, two siblings with homozygous NUP160 mutations presented with SRNS and a nervous system disorder. However, replication of nephrotic syndrome (NS)-associated phenotypes in a mammalian model following loss of Nup160 is needed to prove that NUP160 mutations cause SRNS. Here, we generated a podocyte-specific Nup160 knockout (Nup160podKO) mouse model using CRISPR/Cas9 and Cre/loxP technologies. We investigated NS-associated phenotypes in these Nup160podKO mice. We verified efficient abrogation of Nup160 in Nup160podKO mice at both the DNA and protein levels. We showed that Nup160podKO mice develop typical signs of NS. Nup160podKO mice exhibited progression of proteinuria to average albumin/creatinine ratio (ACR) levels of 15.06 ± 2.71 mg/mg at 26 weeks, and had lower serum albumin levels of 13.13 ± 1.34 g/l at 30 weeks. Littermate control mice had urinary ACR mean values of 0.03 mg/mg and serum albumin values of 22.89 ± 0.34 g/l at the corresponding ages. Further, Nup160podKO mice exhibited glomerulosclerosis compared with littermate control mice. Podocyte-specific Nup160 knockout in mice led to NS and glomerulosclerosis. Thus, our findings strongly support that mutations in NUP160 cause SRNS. The newly generated Nup160podKO mice are a reliable mammalian model for future study of the pathogenesis of NUP160-associated SRNS.
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Affiliation(s)
- Yuanyuan Li
- College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fujian Maternity and Child Health Hospital, 18 Daoshan Road, Fuzhou, Fujian 350000, China
- College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Department of Nephrology, Rheumatology and Immunology, Fujian Children's Hospital, 966 Heng Yu Road, Fuzhou, Fujian 350014, China
- Fujian Key Laboratory of Women and Children's Critical Diseases Research, 18 Daoshan Road, Fuzhou, Fujian 350000, China
| | - Chan Xu
- College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fujian Maternity and Child Health Hospital, 18 Daoshan Road, Fuzhou, Fujian 350000, China
- College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Department of Nephrology, Rheumatology and Immunology, Fujian Children's Hospital, 966 Heng Yu Road, Fuzhou, Fujian 350014, China
- Fujian Key Laboratory of Women and Children's Critical Diseases Research, 18 Daoshan Road, Fuzhou, Fujian 350000, China
- Department of Pediatrics, Fuzong Clinical Medical College, Fujian Medical University, 156 Xi Er Huan Bei Road, Fuzhou, Fujian 350025, China
| | - Feng Zhao
- College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Department of Nephrology, Rheumatology and Immunology, Fujian Children's Hospital, 966 Heng Yu Road, Fuzhou, Fujian 350014, China
| | - Qinghong Liu
- Department of Pathology, Fuzong Clinical Medical College, Fujian Medical University, 156 Xi Er Huan Bei Road, Fuzhou, Fujian 350025, China
| | - Xiaojian Qiu
- College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Department of Nephrology, Rheumatology and Immunology, Fujian Children's Hospital, 966 Heng Yu Road, Fuzhou, Fujian 350014, China
| | - Min Li
- Department of Pathology, Fuzong Clinical Medical College, Fujian Medical University, 156 Xi Er Huan Bei Road, Fuzhou, Fujian 350025, China
| | - Yonghui Yang
- College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Department of Nephrology, Rheumatology and Immunology, Fujian Children's Hospital, 966 Heng Yu Road, Fuzhou, Fujian 350014, China
| | - Shentong Yu
- Department of Pathology, Fuzong Clinical Medical College, Fujian Medical University, 156 Xi Er Huan Bei Road, Fuzhou, Fujian 350025, China
| | - Huajuan Tong
- College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Department of Nephrology, Rheumatology and Immunology, Fujian Children's Hospital, 966 Heng Yu Road, Fuzhou, Fujian 350014, China
| | - Lifang Zhang
- Department of Pathology, Fuzong Clinical Medical College, Fujian Medical University, 156 Xi Er Huan Bei Road, Fuzhou, Fujian 350025, China
| | - Bing Chen
- College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Department of Nephrology, Rheumatology and Immunology, Fujian Children's Hospital, 966 Heng Yu Road, Fuzhou, Fujian 350014, China
| | - Lijuan Qu
- Department of Pathology, Fuzong Clinical Medical College, Fujian Medical University, 156 Xi Er Huan Bei Road, Fuzhou, Fujian 350025, China
| | - Zihua Yu
- College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fujian Maternity and Child Health Hospital, 18 Daoshan Road, Fuzhou, Fujian 350000, China
- College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Department of Nephrology, Rheumatology and Immunology, Fujian Children's Hospital, 966 Heng Yu Road, Fuzhou, Fujian 350014, China
- Fujian Key Laboratory of Women and Children's Critical Diseases Research, 18 Daoshan Road, Fuzhou, Fujian 350000, China
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Hartman G, Humphries P, Hughes R, Ho A, Montgomery R, Deshpande A, Mahanta M, Tronnes S, Cowdin S, He X, Liu F, Zhang L, Liu C, Dou D, Li J, Spasic A, Coll R, Marleaux M, Hochheiser IV, Geyer M, Rubin P, Fortney K, Wilhelmsen K. The discovery of novel and potent indazole NLRP3 inhibitors enabled by DNA-encoded library screening. Bioorg Med Chem Lett 2024; 102:129675. [PMID: 38417632 DOI: 10.1016/j.bmcl.2024.129675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 02/16/2024] [Accepted: 02/22/2024] [Indexed: 03/01/2024]
Abstract
NLRP3 is an intracellular sensor protein that detects a broad range of danger signals and environmental insults. Its activation results in a protective pro-inflammatory response designed to impair pathogens and repair tissue damage via the formation of the NLRP3 inflammasome. Assembly of the NLRP3 inflammasome leads to caspase 1-dependent secretory release of the pro-inflammatory cytokines IL-1β and IL-18 as well as to gasdermin d-mediated pyroptotic cell death. Herein, we describe the discovery of a novel indazole series of high affinity, reversible inhibitors of NLRP3 activation through screening of DNA-encoded libraries and the potent lead compound 3 (BAL-0028, IC50 = 25 nM) that was identified directly from the screen. SPR studies showed that compound 3 binds tightly (KD range 104-123 nM) to the NACHT domain of NLRP3. A CADD analysis of the interaction of compound 3 with the NLRP3 NACHT domain proposes a binding site that is distinct from those of ADP and MCC950 and includes specific site interactions. We anticipate that compound 3 (BAL-0028) and other members of this novel indazole class of neutral inhibitors will demonstrate significantly different physical, biochemical, and biological properties compared to NLRP3 inhibitors previously identified.
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Affiliation(s)
- George Hartman
- BioAge Labs, 1445 S. 50(th) St. Richmond, CA 94804, USA.
| | | | - Robert Hughes
- BioAge Labs, 1445 S. 50(th) St. Richmond, CA 94804, USA
| | - Andrew Ho
- BioAge Labs, 1445 S. 50(th) St. Richmond, CA 94804, USA
| | | | | | | | - Sarah Tronnes
- BioAge Labs, 1445 S. 50(th) St. Richmond, CA 94804, USA
| | | | - Xu He
- HitGen Inc., Shuangliu District, Chengdu, Sichuan 610000, China
| | - Fangchao Liu
- HitGen Inc., Shuangliu District, Chengdu, Sichuan 610000, China
| | - Lifang Zhang
- HitGen Inc., Shuangliu District, Chengdu, Sichuan 610000, China
| | - Chuan Liu
- HitGen Inc., Shuangliu District, Chengdu, Sichuan 610000, China
| | - Dengfeng Dou
- HitGen Inc., Shuangliu District, Chengdu, Sichuan 610000, China
| | - Jin Li
- HitGen Inc., Shuangliu District, Chengdu, Sichuan 610000, China
| | | | - Rebecca Coll
- Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, Belfast BT9 7BL, UK
| | - Michael Marleaux
- Institute of Structural Biology, University of Bonn, Venusberg-Campus 1, 53127, Bonn, Germany
| | - Inga V Hochheiser
- Institute of Structural Biology, University of Bonn, Venusberg-Campus 1, 53127, Bonn, Germany
| | - Matthias Geyer
- Institute of Structural Biology, University of Bonn, Venusberg-Campus 1, 53127, Bonn, Germany
| | - Paul Rubin
- BioAge Labs, 1445 S. 50(th) St. Richmond, CA 94804, USA
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Xu G, Pan H, Fan L, Zhang L, Li J, Cheng S, Meng L, Shen N, Liu Y, Li Y, Huang T, Zhou L. Dietary Betaine Improves Glucose Metabolism in Obese Mice. J Nutr 2024; 154:1309-1320. [PMID: 38417550 DOI: 10.1016/j.tjnut.2024.02.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 02/17/2024] [Accepted: 02/23/2024] [Indexed: 03/01/2024] Open
Abstract
BACKGROUND Obesity caused by the overconsumption of energy-dense foods high in fat and sugar has contributed to the growing prevalence of type 2 diabetes. Betaine, found in food or supplements, has been found to lower blood glucose concentrations, but its exact mechanism of action is not well understood. OBJECTIVES A comprehensive evaluation of the potential mechanisms by which betaine supplementation improves glucose metabolism. METHODS Hyperglycemic mice were fed betaine to measure the indexes of glucose metabolism in the liver and muscle. To explore the mechanism behind the regulation of betaine on glucose metabolism, Ribonucleic Acid-Seq was used to analyze the livers of the mice. In vitro, HepG2 and C2C12 cells were treated with betaine to more comprehensively evaluate the effect of betaine on glucose metabolism. RESULTS Betaine was added to the drinking water of high-fat diet-induced mice, and it was found to reduce blood glucose concentrations and liver triglyceride concentrations without affecting body weight, confirming its hypoglycemic effect. To investigate the specific mechanism underlying its hypoglycemic effect, protein-protein interaction enrichment analysis of the liver revealed key nodes associated with glucose metabolism, including cytochrome P450 family activity, insulin sensitivity, glucose homeostasis, and triglyceride concentrations. The Kyoto Encyclopedia of Genes and Genomes and gene ontogeny enrichment analyses showed significant enrichment of the Notch signaling pathway. These results provided bioinformatic evidence for specific pathways through which betaine regulates glucose metabolism. Key enzyme activities involved in glucose uptake, glycogen synthesis, and glycogenolysis pathways of the liver and muscle were measured, and improvements were observed in these pathways. CONCLUSIONS This study provides new insight into the mechanisms by which betaine improves glucose metabolism in the liver and muscle and supports its potential as a drug for the treatment of metabolic disorders related to glucose.
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Affiliation(s)
- Gaoxiao Xu
- Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, and Environmental Hormone and Reproduction, School of Biological and Food Engineering, Fuyang Normal University, Fuyang, China
| | - Hongyuan Pan
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Liping Fan
- Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, and Environmental Hormone and Reproduction, School of Biological and Food Engineering, Fuyang Normal University, Fuyang, China
| | - Lifang Zhang
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Jian Li
- Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, and Environmental Hormone and Reproduction, School of Biological and Food Engineering, Fuyang Normal University, Fuyang, China
| | - Shimei Cheng
- Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, and Environmental Hormone and Reproduction, School of Biological and Food Engineering, Fuyang Normal University, Fuyang, China
| | - Libing Meng
- Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, and Environmental Hormone and Reproduction, School of Biological and Food Engineering, Fuyang Normal University, Fuyang, China
| | - Nana Shen
- Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, and Environmental Hormone and Reproduction, School of Biological and Food Engineering, Fuyang Normal University, Fuyang, China
| | - Yong Liu
- Anhui Province Key Laboratory of Embryo Development and Reproductive Regulation, and Environmental Hormone and Reproduction, School of Biological and Food Engineering, Fuyang Normal University, Fuyang, China
| | - Yixing Li
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Tengda Huang
- College of Animal Science and Technology, Guangxi University, Nanning, China.
| | - Lei Zhou
- Guangxi Academy of Medical Sciences, the People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China.
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Cheng Y, Chen H, Zhang L, Xu X, Cheng H, Yan C, Qian T. Evolution of Grain Boundaries Promoted Hydrogen Production for Industrial-Grade Current Density. Adv Mater 2024; 36:e2313156. [PMID: 38242541 DOI: 10.1002/adma.202313156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 01/16/2024] [Indexed: 01/21/2024]
Abstract
The development of efficient and durable high-current-density hydrogen production electrocatalysts is crucial for the large-scale production of green hydrogen and the early realization of hydrogen economic blueprint. Herein, the evolution of grain boundaries through Cu-mediated NiMo bimetallic oxides (MCu-BNiMo), which leading to the high efficiency of electrocatalyst for hydrogen evolution process (HER) in industrial-grade current density, is successfully driven. The optimal MCu0.10-BNiMo demonstrates ultrahigh current density (>2 A cm-2) at a smaller overpotential in 1 m KOH (572 mV), than that of BNiMo, which does not have lattice strain. Experimental and theoretical calculations reveal that MCu0.10-BNiMo with optimal lattice strain generated more electrophilic Mo sites with partial oxidation owing to accelerated charge transfer from Cu to Mo, which lowers the energy barriers for H* adsorption. These synergistic effects lead to the enhanced HER performance of MCu0.10-BNiMo. More importantly, industrial application of MCu0.10-BNiMo operated in alkaline electrolytic cell is also determined, with its current density reached 0.5 A cm-2 at 2.12 V and 0.1 A cm-2 at 1.79 V, which is nearly five-fold that of the state-of-the-art HER electrocatalyst Pt/C. The strategy provides valuable insights for achieving industrial-scale hydrogen production through a highly efficient HER electrocatalyst.
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Affiliation(s)
- Yu Cheng
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, 226019, P. R. China
| | - Huanyu Chen
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, 226019, P. R. China
| | - Lifang Zhang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, 226019, P. R. China
| | - Xinnan Xu
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, 226019, P. R. China
| | - Huili Cheng
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, 226019, P. R. China
| | - Chenglin Yan
- Key Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical Industry, College of Energy, Soochow University, Suzhou, 215006, P. R. China
| | - Tao Qian
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, 226019, P. R. China
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Liu J, Yang F, Shang L, Cai S, Wu Y, Liu Y, Zhang L, Fei C, Wang M, Gu F. Recapitulating familial hypercholesterolemia in a mouse model by knock-in patient-specific LDLR mutation. FASEB J 2024; 38:e23573. [PMID: 38526846 DOI: 10.1096/fj.202301216rrr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 02/24/2024] [Accepted: 03/11/2024] [Indexed: 03/27/2024]
Abstract
Familial hypercholesterolemia (FH) is one of the most prevalent monogenetic disorders leading to cardiovascular disease (CVD) worldwide. Mutations in Ldlr, encoding a membrane-spanning protein, account for the majority of FH cases. No effective and safe clinical treatments are available for FH. Adenine base editor (ABE)-mediated molecular therapy is a promising therapeutic strategy to treat genetic diseases caused by point mutations, with evidence of successful treatment in mouse disease models. However, due to the differences in the genomes between mice and humans, ABE with specific sgRNA, a key gene correction component, cannot be directly used to treat FH patients. Thus, we generated a knock-in mouse model harboring the partial patient-specific fragment and including the Ldlr W490X mutation. LdlrW490X/W490X mice recapitulated cholesterol metabolic disorder and clinical manifestations of atherosclerosis associated with FH patients, including high plasma low-density lipoprotein cholesterol levels and lipid deposition in aortic vessels. Additionally, we showed that the mutant Ldlr gene could be repaired using ABE with the cellular model. Taken together, these results pave the way for ABE-mediated molecular therapy for FH.
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Affiliation(s)
- Jing Liu
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai, China
| | - Fayu Yang
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai, China
| | - Lu Shang
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai, China
| | - Shuo Cai
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai, China
| | - Yuting Wu
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai, China
| | - Yingchun Liu
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai, China
| | - Lifang Zhang
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai, China
| | - Chenzhong Fei
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai, China
| | - Mi Wang
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai, China
| | - Feng Gu
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai, China
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Sun Y, Zhao J, Zhang L, Li Z, Lei S. Response to comment on "Effectiveness and safety of stem cell therapy for diabetic foot: a meta-analysis update". Stem Cell Res Ther 2024; 15:86. [PMID: 38515157 PMCID: PMC10958926 DOI: 10.1186/s13287-023-03609-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 12/07/2023] [Indexed: 03/23/2024] Open
Affiliation(s)
- Yuming Sun
- Department of Plastic and Cosmetic Surgery, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan Province, China
| | - Jinhong Zhao
- School of Health Policy and Management, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100730, China
| | - Lifang Zhang
- Department of Plastic and Cosmetic Surgery, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan Province, China
| | - Zhexuan Li
- Department of Plastic and Cosmetic Surgery, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan Province, China.
| | - Shaorong Lei
- Department of Plastic and Cosmetic Surgery, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan Province, China.
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Zhang L, Xu H, Zhang X, Chen X, Lv Y, Zhang R, Wang L, Wu R, Shen H, Li LS. Highly Sensitive, Stable InP Quantum Dot Fluorescent Probes for Quantitative Immunoassay Through Nanostructure Tailoring and Biotin-Streptavidin Coupling. Inorg Chem 2024; 63:4604-4613. [PMID: 38395777 DOI: 10.1021/acs.inorgchem.3c04153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2024]
Abstract
Nontoxic, highly sensitive InP quantum dot (QD) fluorescent immunoassay probes are promising biomedical detection modalities due to their unique properties. However, InP-based QDs are prone to surface oxidation, and the stability of InP QD-based probes in biocompatible environments remains a crucial challenge. Although the thick shell can provide some protection during the phase transfer process of hydrophobic QDs, the photoluminescence quantum yield (PLQY) is generally decreased because of the contradiction between lattice stress relaxation and thick shell growth. Herein, we developed thick-shell InP-based core/shell QDs by inserting a ZnSeS alloy layer. The ternary ZnSeS intermediate shell could effectively facilitate lattice stress relaxation and passivate the defect states. The synthesized InP/ZnSe/ZnSeS/ZnS core/alloy shell/shell QDs (CAS-InP QDs) with nanostructure tailoring revealed a larger size, high PLQY (90%), and high optical stability. After amphiphilic polymer encapsulation, the aqueous CAS-InP QDs presented almost constant fluorescence attenuation and stable PL intensity under different temperatures, UV radiation, and pH solutions. The CAS-InP QDs were excellent labels of the fluorescence-linked immunosorbent assay (FLISA) for detecting C-reactive protein (CRP). The biotin-streptavidin (Bio-SA) system was first introduced in the FLISA to further improve the sensitivity, and the CAS-InP QDs-based SA-Bio sandwich FLISA realized the detection of CRP with an impressive limit of detection (LOD) of 0.83 ng/mL. It is believed that the stable and sensitive InP QD fluorescent probes will drive the rapid development of future eco-friendly, cost-effective, and sensitive in vitro diagnostic kits.
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Affiliation(s)
- Lifang Zhang
- Key Lab for Special Functional Materials of Ministry of Education, School of Materials Science, and National and Local Joint Engineering Research Center for High-Efficiency Display and Lighting Technology, Henan University, Kaifeng 475004, China
| | - Han Xu
- Key Lab for Special Functional Materials of Ministry of Education, School of Materials Science, and National and Local Joint Engineering Research Center for High-Efficiency Display and Lighting Technology, Henan University, Kaifeng 475004, China
| | - Xuhui Zhang
- Key Lab for Special Functional Materials of Ministry of Education, School of Materials Science, and National and Local Joint Engineering Research Center for High-Efficiency Display and Lighting Technology, Henan University, Kaifeng 475004, China
| | - Xinxin Chen
- Key Lab for Special Functional Materials of Ministry of Education, School of Materials Science, and National and Local Joint Engineering Research Center for High-Efficiency Display and Lighting Technology, Henan University, Kaifeng 475004, China
| | - Yanbing Lv
- Key Lab for Special Functional Materials of Ministry of Education, School of Materials Science, and National and Local Joint Engineering Research Center for High-Efficiency Display and Lighting Technology, Henan University, Kaifeng 475004, China
| | - Ruixue Zhang
- Key Lab for Special Functional Materials of Ministry of Education, School of Materials Science, and National and Local Joint Engineering Research Center for High-Efficiency Display and Lighting Technology, Henan University, Kaifeng 475004, China
| | - Lei Wang
- Key Lab for Special Functional Materials of Ministry of Education, School of Materials Science, and National and Local Joint Engineering Research Center for High-Efficiency Display and Lighting Technology, Henan University, Kaifeng 475004, China
| | - Ruili Wu
- Key Lab for Special Functional Materials of Ministry of Education, School of Materials Science, and National and Local Joint Engineering Research Center for High-Efficiency Display and Lighting Technology, Henan University, Kaifeng 475004, China
| | - Huaibin Shen
- Key Lab for Special Functional Materials of Ministry of Education, School of Materials Science, and National and Local Joint Engineering Research Center for High-Efficiency Display and Lighting Technology, Henan University, Kaifeng 475004, China
| | - Lin Song Li
- Key Lab for Special Functional Materials of Ministry of Education, School of Materials Science, and National and Local Joint Engineering Research Center for High-Efficiency Display and Lighting Technology, Henan University, Kaifeng 475004, China
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10
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Zhang M, Gao Y, Xue J, Li K, Zhang L, Yu J, Yan T, Hou X. Development of the assessment standards of the International Classification of Functioning, Disability, and Health (ICF) Geriatric Core Set through a modified Delphi method. BMC Geriatr 2024; 24:239. [PMID: 38454354 PMCID: PMC10921752 DOI: 10.1186/s12877-024-04816-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 02/15/2024] [Indexed: 03/09/2024] Open
Abstract
BACKGROUND There is currently a lack of functional assessment tools based on the International Classification of Functioning, Disability, and Health (ICF) theoretical framework that are specific for older adults. OBJECTIVE The aim of the present study was to develop Chinese assessment standards of the ICF Geriatric Core Set for functional evaluation of older adults. METHODS A two-stage study process was conducted to develop the assessment standards of the ICF Geriatric Core Set: establishment of candidate assessment standards, and a modified Delphi consensus process including a pilot survey and two-round formal expert survey. Thirty participants in the field of ICF and geriatric rehabilitation were recruited. The suitability of the assessment standards in the questionnaires was rated using a Likert 5-level scoring method. The arithmetic mean, the full mark ratio and the coefficient of variation (CV) were used as screening indicators for the assessment standards, and modification was made for several standards, in line with the Delphi results and the expert panel discussion. RESULTS Thirty-three candidate assessment standards belonging to 17 categories were generated. A total of 26 and 24 experts in the field of ICF and geriatric rehabilitation participated in the two-round survey, respectively. Five standards belonging to four categories entered into the second-round survey directly, five standards belonged to five categories entered with minor modification, and nine standards belonging to seven categories were redesigned based on the literature and discussion of the expert panel. In the second-round survey,15 assessment standards belonging to 15 categories met the screening requirements and four assessment standards belonged to the two remaining categories that needed a criterion and which the expert panel discussed for the final decision. CONCLUSIONS Using the modified Delphi method, the assessment standards of the ICF Geriatric Core Set have been developed.Future work should focus on the reliability and validity of the the assessment standards and their application to the health management of older adults.
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Affiliation(s)
- Malan Zhang
- Department of Exercise Rehabilitation, College of Exercise and Health, Guangzhou Sport University, Guangzhou, China
| | - Yan Gao
- Department of Rehabilitation Medicine, Shenzhen Second People's Hospital, First Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Jingjing Xue
- Department of Rehabilitation Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Kun Li
- School of Nursing, Sun Yat-sen University, Guangzhou, China
| | - Lifang Zhang
- School of Nursing, Youjiang medical university for nationalities, Baise, China
| | - Jiani Yu
- Department of Rehabilitation, GuangDong Province Hospital of Chinese Medicine, Guangzhou, China
| | - Tiebin Yan
- Department of Rehabilitation Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.
| | - Xiaohui Hou
- Department of Exercise Rehabilitation, College of Exercise and Health, Guangzhou Sport University, Guangzhou, China.
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11
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Hu H, Sun W, Zhang L, Zhang Y, Kuang T, Qu D, Lian S, Hu S, Cheng M, Xu Y, Liu S, Qian Y, Lu Y, He L, Cheng Y, Si H. Carboxymethylated Abrus cantoniensis polysaccharide prevents CTX-induced immunosuppression and intestinal damage by regulating intestinal flora and butyric acid content. Int J Biol Macromol 2024; 261:129590. [PMID: 38266859 DOI: 10.1016/j.ijbiomac.2024.129590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 12/23/2023] [Accepted: 01/17/2024] [Indexed: 01/26/2024]
Abstract
As a Chinese folk health product, Abrus cantoniensis exhibits good immunomodulatory activity because of its polysaccharide components (ACP), and carboxymethylation of polysaccharides can often further improve the biological activity of polysaccharides. In this study, we explored the impact of prophylactic administration of carboxymethylated Abrus cantoniensis polysaccharide (CM-ACP) on immunosuppression and intestinal damage induced by cyclophosphamide (CTX) in mice. Our findings demonstrated that CM-ACP exhibited a more potent immunomodulatory activity compared to ACP. Additionally, CM-ACP effectively enhanced the abundance of short-chain fatty acid (SCFA)-producing bacteria in immunosuppressed mice and regulated the gene expression of STAT6 and STAT3 mediated pathway signals. In order to further explore the relationship among polysaccharides, intestinal immunity and intestinal flora, we performed a pseudo-sterile mouse validation experiment and fecal microbiota transplantation (FMT) experiment. The findings suggest that CM-FMT and butyrate attenuate CTX-induced immunosuppression and intestinal injury. CM-FMT and butyrate show superior immunomodulatory ability, and may effectively regulate intestinal cell metabolism and repair the damaged intestine by activating STAT6 and STAT3-mediated pathways. These findings offer new insights into the mechanisms by which CM-ACP functions as functional food or drug, facilitating immune response regulation and maintaining intestinal health.
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Affiliation(s)
- Hongjie Hu
- College of Animal Science and Technology, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning 530004, China
| | - Wenjing Sun
- Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology, College of Biology & Pharmacy, Yulin Normal University, No. 1303 Jiaoyu East Road, Yulin, 537000, Guangxi, China
| | - Lifang Zhang
- College of Animal Science and Technology, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning 530004, China
| | - Yuan Zhang
- College of Animal Science and Technology, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning 530004, China
| | - Tiantian Kuang
- College of Animal Science and Technology, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning 530004, China
| | - Dongshuai Qu
- College of Animal Science and Technology, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning 530004, China
| | - Shuaitao Lian
- College of Animal Science and Technology, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning 530004, China
| | - Shanshan Hu
- College of Animal Science and Technology, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning 530004, China
| | - Ming Cheng
- College of Animal Science and Technology, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning 530004, China
| | - Yanping Xu
- College of Animal Science and Technology, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning 530004, China
| | - Song Liu
- College of Animal Science and Technology, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning 530004, China
| | - Yajing Qian
- College of Animal Science and Technology, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning 530004, China
| | - Yujie Lu
- College of Animal Science and Technology, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning 530004, China
| | - Lingzhi He
- College of Animal Science and Technology, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning 530004, China
| | - Yumeng Cheng
- College of Animal Science and Technology, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning 530004, China
| | - Hongbin Si
- College of Animal Science and Technology, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning 530004, China.
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12
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Xue X, Zhang L, Zhen J, Zeng X. Effects of evidence-based nursing in patients with stroke: A systematic review and meta-analysis. Nurse Educ Pract 2024; 76:103921. [PMID: 38395003 DOI: 10.1016/j.nepr.2024.103921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 01/18/2024] [Accepted: 02/09/2024] [Indexed: 02/25/2024]
Abstract
AIM The aim of this study was to evaluate the efficacy of evidence-based nursing (EBN) in patients with confirmed stroke. BACKGROUND After acute hospital treatment, stroke patients often return home for rehabilitation. Stroke ward nursing, demonstrates improved disability-free survival rates. EBN as a new nursing paradigm, rooted in authentic scientific evidence, will transform traditional nursing models. The goal is to advance nursing science, enhance practices and optimize patient outcomes. DESIGN AND METHODS PubMed, Embase, Cochrane Library and Web of Science were comprehensively searched from the inception to July 2nd, 2023. 13015 patients with confirmed stroke were included, of which 3351 patients were in EBN group, 9664 patients were in the control group. Odd ratio (OR) and standardized mean difference (SMD) and the 95% confidence intervals (CIs) were calculated. RESULTS Twelve studies were included in this study. The risk of bias in included studies was assessed as low. The OR for cumulative death was 1.61 (95% CI: 0.68, 3.85; z = 1.08, P = 0.2811). The pooled SMD for SF-36 physical component scores was -0.06 (95% CI: -1.15, 0.04; z = -1.11, P = 0.2688). The SMD for SF-36 mental health scores was -0.01 (95% CI: -0.10, 0.09; z = -0.10, P = 0.9207). The SMD for WHOQOL-BREF mentality scores was -0.06 (95% CI: -0.21, 0.10; z = -0.71, P = 0.4754). The SMD for WHOQOL-BREF physiology scores was 1.13 (95% CI: -1.13, 3.39; z = 0.98, P = 0.3283). CONCLUSIONS EBN is effective in improving psychological status, physical functions and quality of life in patients with stroke in individual studies, efficacy of EBN was not observed in pooled analyses, more evidence-based information is needed to comprehensively assess the efficacy of EBN in stroke patients.
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Affiliation(s)
- Xiaolu Xue
- Department of Neurology, Shanxi Cardiovascular Hospital, Taiyuan, Shanxi 030024, China.
| | - Lifang Zhang
- Department of Nursing, Shanxi Coal Central Hospital, Taiyuan, Shanxi 030006, China
| | - Jiao Zhen
- Department of Neurology, The First Affiliated Hospital of Shanxi Medical University, Taiyuan, Shanxi 030001, China
| | - Xiaoxia Zeng
- Department of Nursing, Shanxi Cardiovascular Hospital, Taiyuan, Shanxi 030024, China
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13
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Xing M, Nie Y, Huang J, Li Y, Zhao M, Wang S, Wang Y, Chen W, Chen Z, Zhang L, Cheng Y, Yang Q, Sun J, Qiao W. A wild rice CSSL population facilitated identification of salt tolerance genes and rice germplasm innovation. Physiol Plant 2024; 176:e14301. [PMID: 38629128 DOI: 10.1111/ppl.14301] [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] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Revised: 03/31/2024] [Accepted: 04/09/2024] [Indexed: 04/19/2024]
Abstract
Salt stress is one of the major factors that limits rice production. Therefore, identification of salt-tolerant alleles from wild rice is important for rice breeding. In this study, we constructed a set of chromosome segment substitution lines (CSSLs) using wild rice as the donor parent and cultivated rice Nipponbare (Nip) as the recurrent parent. Salt tolerance germinability (STG) was evaluated, and its association with genotypes was determined using this CSSL population. We identified 17 QTLs related to STG. By integrating the transcriptome and genome data, four candidate genes were identified, including the previously reported AGO2 and WRKY53. Compared with Nip, wild rice AGO2 has a structure variation in its promoter region and the expression levels were upregulated under salt treatments; wild rice WRKY53 also has natural variation in its promoter region, and the expression levels were downregulated under salt treatments. Wild rice AGO2 and WRKY53 alleles have combined effects for improving salt tolerance at the germination stage. One CSSL line, CSSL118 that harbors these two alleles was selected. Compared with the background parent Nip, CSSL118 showed comprehensive salt tolerance and higher yield, with improved transcript levels of reactive oxygen species scavenging genes. Our results provided promising genes and germplasm resources for future rice salt tolerance breeding.
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Affiliation(s)
- Meng Xing
- State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
- National Nanfan Research Institute (Sanya), Chinese Academy of Agricultural Sciences, Sanya, Hainan, China
| | - Yamin Nie
- State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
- National Nanfan Research Institute (Sanya), Chinese Academy of Agricultural Sciences, Sanya, Hainan, China
| | - Jingfen Huang
- State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
- National Nanfan Research Institute (Sanya), Chinese Academy of Agricultural Sciences, Sanya, Hainan, China
| | - Yapeng Li
- Hainan Academy of Agricultural Sciences, Haikou, Hainan, China
| | - Mingchao Zhao
- Hainan Academy of Agricultural Sciences, Haikou, Hainan, China
| | - Shizhuang Wang
- State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
- National Nanfan Research Institute (Sanya), Chinese Academy of Agricultural Sciences, Sanya, Hainan, China
| | - Yanyan Wang
- State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
- National Nanfan Research Institute (Sanya), Chinese Academy of Agricultural Sciences, Sanya, Hainan, China
| | - Wenxi Chen
- State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Ziyi Chen
- State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
- National Nanfan Research Institute (Sanya), Chinese Academy of Agricultural Sciences, Sanya, Hainan, China
| | - Lifang Zhang
- State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yunlian Cheng
- State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Qingwen Yang
- State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
- National Nanfan Research Institute (Sanya), Chinese Academy of Agricultural Sciences, Sanya, Hainan, China
| | - Jiaqiang Sun
- State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Weihua Qiao
- State Key Laboratory of Crop Gene Resources and Breeding, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, China
- National Nanfan Research Institute (Sanya), Chinese Academy of Agricultural Sciences, Sanya, Hainan, China
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14
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Zhang L, Chen X, Luo G, Liu S, Guo P, Ye Y, Jiang R. Unraveling the distribution characteristic of cyclic volatile methylsiloxanes in various environmental media of a wastewater treatment plant. Sci Total Environ 2024; 912:169106. [PMID: 38065489 DOI: 10.1016/j.scitotenv.2023.169106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 11/27/2023] [Accepted: 12/02/2023] [Indexed: 12/17/2023]
Abstract
Cyclic volatile methylsiloxane (cVMS) is extensively used in consumer products and frequently detected in various environmental media, including water and air. In this study, we developed reliable and convenient methods to sample three cVMS compounds: octamethylcyclotetrasiloxane (D4), decamethylcyclopentasiloxane (D5), and dodecamethylcyclohexasiloxane (D6) in water and air samples collected from different tanks within a wastewater treatment plant (WWTP). The concentrations of D4, D5, and D6 in the water samples ranged from 0.40 to 8.0 μg L-1, 0.35 to 91 μg L-1, and 0.54 to 17 μg L-1, respectively. In the air samples, these concentrations varied from 0.34 to 20 μg m-3, 0.34 to 128 μg m-3, and 0.08 to 12 μg m-3, respectively. It is worth noting that the air-water distribution coefficient (Kaw) for these three cVMS exhibited a strong correlation with their water solubility. Moreover, fugacity fractions indicated a net evaporation process from water to the atmosphere. Furthermore, we investigated the distribution of cVMS between the gaseous and particulate phases. The results revealed a significant fraction, exceeding 72 %, of cVMS resided in the gas phase. D4 and D5 predominate in the gaseous phase, while D5 and D6 are the principal constituents within the particulate phase. The distribution coefficient characterizing the partitioning of cVMS compounds between the gaseous and particulate (Kp) exhibited a strong correlation with their corresponding octanol-air partitioning coefficients (Koa). These findings contribute to a better understanding of the distribution of cVMS in diverse environmental media and the underlying mechanism governing their dispersion.
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Affiliation(s)
- Lifang Zhang
- Guangdong Provincial Key Laboratory of Chemical Measurement and Emergency Test Technology, Guangdong Provincial Engineering Research Center for Ambient Mass Spectrometry, Institute of Analysis, Guangdong Academy of Sciences (China National Analytical Center, Guangzhou), Guangzhou 510070, China
| | - Xinlv Chen
- Guangdong Provincial Key Laboratory of Chemical Measurement and Emergency Test Technology, Guangdong Provincial Engineering Research Center for Ambient Mass Spectrometry, Institute of Analysis, Guangdong Academy of Sciences (China National Analytical Center, Guangzhou), Guangzhou 510070, China
| | - Gan Luo
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, China
| | - Shuqin Liu
- Guangdong Provincial Key Laboratory of Chemical Measurement and Emergency Test Technology, Guangdong Provincial Engineering Research Center for Ambient Mass Spectrometry, Institute of Analysis, Guangdong Academy of Sciences (China National Analytical Center, Guangzhou), Guangzhou 510070, China
| | - Pengran Guo
- Guangdong Provincial Key Laboratory of Chemical Measurement and Emergency Test Technology, Guangdong Provincial Engineering Research Center for Ambient Mass Spectrometry, Institute of Analysis, Guangdong Academy of Sciences (China National Analytical Center, Guangzhou), Guangzhou 510070, China
| | - Yuanjian Ye
- Guangzhou Quality Supervision and Testing Institute, Guangzhou 511400, China
| | - Ruifen Jiang
- Guangdong Provincial Key Laboratory of Chemical Measurement and Emergency Test Technology, Guangdong Provincial Engineering Research Center for Ambient Mass Spectrometry, Institute of Analysis, Guangdong Academy of Sciences (China National Analytical Center, Guangzhou), Guangzhou 510070, China; Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, China.
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15
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Sun X, Luo S, Zhang L, Miao Y, Yan G. Photodynamic antibacterial activity of oxidase-like nanozyme based on long-lived room-temperature phosphorescent carbon dots. Food Chem 2024; 434:137541. [PMID: 37757701 DOI: 10.1016/j.foodchem.2023.137541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 09/16/2023] [Accepted: 09/18/2023] [Indexed: 09/29/2023]
Abstract
In this study, a novel long-lived room-temperature phosphorescent (RTP) carbon dots (P-CDs) with the properties of ultraviolet/visible (UV/Vis) light photoresponsive oxidase-like nanozyme were synthesized from diethylenetriaminepentaacetic acid and through a one-step hydrothermal method. P-CDs were used as a light-driven oxidative-like enzyme for antimicrobial studies. The results showed that under UV/Vis light irradiation, P-CDs could efficiently convert O2 into 1O2, and the strong oxidizing property of 1O2 greatly enhanced the growth inhibition of P-CDs on Gram-positive Staphylococcus aureus (S. aureus) and Gram-negative Escherichia coli (E. coli). Meanwhile, P-CDs exhibited good photodynamic antifungal properties against Botrytis cinerea (B. cinerea). Then the P-CDs were made into P-CDs/PVA films, which effectively prolonged the preservation period of fruits under photodynamic antibacterial action. The good biocompatibility and efficient photosensitive oxygen activation can make P-CDs a more practically useful oxidase-like nanozyme.
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Affiliation(s)
- Xiaojie Sun
- School of Chemistry and Materials Science, Shanxi Normal University, Taiyuan 030006, China
| | - Shiqing Luo
- School of Chemistry and Materials Science, Shanxi Normal University, Taiyuan 030006, China
| | - Lifang Zhang
- School of Chemistry and Materials Science, Shanxi Normal University, Taiyuan 030006, China; Research Institute of Materials Science of Shanxi Normal University & Collaborative Innovation Center for Shanxi Advanced Permanent Magnetic Materials and Technology, Taiyuan 030006, China.
| | - Yanming Miao
- School of Life Science, Shanxi Normal University, Taiyuan 030006, China.
| | - Guiqin Yan
- School of Life Science, Shanxi Normal University, Taiyuan 030006, China
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Shang L, Chen C, Sun R, Guo J, Liu J, Wang M, Zhang L, Fei C, Xue F, Liu Y, Gu F. Engineered Peptides Harboring Cation Motifs Against Multidrug-Resistant Bacteria. ACS Appl Mater Interfaces 2024; 16:5522-5535. [PMID: 38266749 DOI: 10.1021/acsami.3c15913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
Multidrug-resistant (MDR) pathogens pose a serious threat to the health and life of humans, necessitating the development of new antimicrobial agents. Herein, we develop and characterize a panel of nine amino acid peptides with a cation end motif. Bioactivity analysis revealed that the short peptide containing "RWWWR" as a central motif harboring mirror structure "KXR" unit displayed not only high activity against MDR planktonic bacteria but also a clearance rate of 92.33% ± 0.58% against mature biofilm. Mechanically, the target peptide (KLR) killed pathogens by excessively accumulating reactive oxygen species and physically disrupting membranes, thereby enhancing its robustness for controlling drug resistance. In the animal model of sepsis infection by MDR bacteria, the peptide KLR exhibited strong therapeutic effects. Collectively, this study provided the dominant structure of short antimicrobial peptides (AMPs) to replenish our arsenals for combating bacterial infections and illustrated what could be harnessed as a new agent for fighting MDR bacteria.
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Affiliation(s)
- Lu Shang
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai 200241, China
| | - Chan Chen
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai 200241, China
| | - Rui Sun
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai 200241, China
| | - Juan Guo
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai 200241, China
| | - Jing Liu
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai 200241, China
| | - Mi Wang
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai 200241, China
| | - Lifang Zhang
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai 200241, China
| | - Chenzhong Fei
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai 200241, China
| | - Feiqun Xue
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai 200241, China
| | - Yingchun Liu
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai 200241, China
| | - Feng Gu
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai 200241, China
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Li L, Feng ZQ, Zhang LF, Wang RQ, Zhang XX, Liu LY, Yu LX, Yu ZG, Gao ZC. [An analysis of breast cancer patients with ultrasound BI-RADS 3 lesions after minimally invasive excision in clinicopathological features and influencing factors of residual tumor]. Zhonghua Wai Ke Za Zhi 2024; 62:135-140. [PMID: 38310381 DOI: 10.3760/cma.j.cn112139-20231016-00176] [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] [Subscribe] [Scholar Register] [Indexed: 02/05/2024]
Abstract
Objectives: To examine the clinicopathological characteristics and the influencing factors of the residual tumor of patients with Breast Image Report and Data System (BI-RADS) grade 3 lesions diagnosed with malignancy after minimally invasive excision. Methods: In this retrospective case-control study, clinicopathological data of 69 cases, which had been evaluated as BI-RADS 3 lesions by ultrasound (4 151 cases) diagnosed with breast cancer by minimally invasive excision pathology, were analyzed between May 2012 and June 2016 at the Department of Breast Surgery of the Second Hospital of Shandong University and Linyi People's Hospital. All patients were female, aged (43.4±8.2) years (range: 22 to 70 years). Based on residual tumor after minimally invasive excision, patients were classified into two subgroups: tumor residual group (n=39) and non-tumor residual group (n=30). The clinicopathological features between the two groups were compared. The differences in clinicopathological characteristics were compared in different groups using the χ2 test and the t test. Potential variables identified in the univariate analysis and other relevant variables will be analyzed multivarially using Logistic regression models. The Kaplan-Meier method was applied for survival analysis and survival curves. Results: The breast cancer detection rate of ultrasound BI-RADS 3 lesions was 1.66% (69/4 151), and their maximum diameter of the masses was (1.27±0.45) cm (range: 0.5 to 2.3 cm). Among them, the maximum diameter were ≤1 cm in 28 cases and >1 cm in 41 cases. Histopathological results showed carcinoma in situ in 24 cases and invasive carcinoma in 41 cases, positive expression of the estrogen receptor in 47 cases, positive expression of the progesterone receptor in 43 cases, Ki-67 proliferation index elevated in 26 cases. Axillary metastasis positive rate was 10.1% (7/69). Residual tumor after minimally invasive surgery was found in 39 cases (56.5%). Univariate analysis showed that the tumour residual group showed a significantly increased rate of positive expression of the estrogen receptor (91.9%(34/37) vs. 61.9%(13/21), χ2=7.838, P=0.012). In multivariate analysis, the only variable found to significantly affect the residual tumor was the positive expression of the estrogen receptor (OR=16.852, 95%CI: 1.819 to 156.130, P=0.013). The 5-year disease-free survival rate of breast cancer patients with breast ultrasound BI-RADS 3 lesions was 97.1% and the overall survival rate was 98.6%. Conclusions: BI-RADS 3 lesions diagnosed by ultrasound undergoing ultrasound-guided minimally invasive excision have a certain risk of detected malignancy, approximately 1.66%. Patients with positive expression of the estrogen receptor are more likely to develop residual tumor. A secondary operation should be considered to ensure that no tumor residues remain in the cavity.
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Affiliation(s)
- L Li
- Department of Breast Surgery, the Second Hospital of Shandong University; Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University; Shandong Provincial Engineering Laboratory of Translational Research on Prevention and Treatment of Breast Disease, Jinan 250033, China
| | - Z Q Feng
- Department of Breast Surgery, the Second Hospital of Shandong University; Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University; Shandong Provincial Engineering Laboratory of Translational Research on Prevention and Treatment of Breast Disease, Jinan 250033, China
| | - L F Zhang
- Department of Radiology, Linyi People's Hospital, Linyi 276000, China
| | - R Q Wang
- Department of Breast Surgery, Linyi People's Hospital, Linyi 276000, China
| | - X X Zhang
- Department of Breast Surgery, Linyi People's Hospital, Linyi 276000, China
| | - L Y Liu
- Department of Breast Surgery, the Second Hospital of Shandong University; Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University; Shandong Provincial Engineering Laboratory of Translational Research on Prevention and Treatment of Breast Disease, Jinan 250033, China
| | - L X Yu
- Department of Breast Surgery, the Second Hospital of Shandong University; Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University; Shandong Provincial Engineering Laboratory of Translational Research on Prevention and Treatment of Breast Disease, Jinan 250033, China
| | - Z G Yu
- Department of Breast Surgery, the Second Hospital of Shandong University; Institute of Translational Medicine of Breast Disease Prevention and Treatment, Shandong University; Shandong Provincial Engineering Laboratory of Translational Research on Prevention and Treatment of Breast Disease, Jinan 250033, China
| | - Z C Gao
- Department of Breast Surgery, Linyi People's Hospital, Linyi 276000, China
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Zhang L, Li T, Du T, Dai X, Zhang L, Tao C, Ding J, Yan C, Qian T. Manipulation of Electronic States of Pt Sites via d-Band Center Tuning for Enhanced Oxygen Reduction Reaction in Proton Exchange Membrane Fuel Cells. Inorg Chem 2024; 63:2138-2147. [PMID: 38237037 DOI: 10.1021/acs.inorgchem.3c04058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2024]
Abstract
Expediting the torpid kinetics of the oxygen reduction reaction (ORR) at the cathode with minimal amounts of Pt under acidic conditions plays a significant role in the development of proton exchange membrane fuel cells (PEMFCs). Herein, a novel Pt-N-C system consisting of Pt single atoms and nanoparticles anchored onto the defective carbon nanofibers is proposed as a highly active ORR catalyst (denoted as Pt-N-C). Detailed characterizations together with theoretical simulations illustrate that the strong coupling effect between different Pt sites can enrich the electron density of Pt sites, modify the d-band electronic environments, and optimize the oxygen intermediate adsorption energies, ultimately leading to significantly enhanced ORR performance. Specifically, the as-designed Pt-N-C demonstrates exceptional ORR properties with a high half-wave potential of 0.84 V. Moreover, the mass activity of Pt-N-C reaches 193.8 mA gPt-1 at 0.9 V versus RHE, which is 8-fold greater than that of Pt/C, highlighting the enormously improved electrochemical properties. More impressively, when integrated into a membrane electrode assembly as cathode in an air-fed PEMFC, Pt-N-C achieved a higher maximum power density (655.1 mW cm-2) as compared to Pt/C-based batteries (376.25 mW cm-2), hinting at the practical application of Pt-N-C in PEMFCs.
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Affiliation(s)
- Luping Zhang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong226019, China
| | - Tongfei Li
- School of Chemistry and Chemical Engineering, Nantong University, Nantong226019, China
| | - Tianheng Du
- School of Chemistry and Chemical Engineering, Nantong University, Nantong226019, China
| | - Xinyi Dai
- School of Chemistry and Chemical Engineering, Nantong University, Nantong226019, China
| | - Lifang Zhang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong226019, China
| | - Chen Tao
- School of Electrical Engineering, Nantong University, Nantong226019, China
| | - Jinjin Ding
- School of Chemistry and Chemical Engineering, Nantong University, Nantong226019, China
| | - Chenglin Yan
- School of Petrochemical Engineering, Changzhou University, Changzhou213164, China
- Key Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical Industry, College of Energy, Soochow University, Suzhou215006, China
| | - Tao Qian
- School of Chemistry and Chemical Engineering, Nantong University, Nantong226019, China
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Zhu Y, Zheng Y, Liu J, Zhang L, Ni X, Zhou J, Wang M, Qian T, Yan C. Molecular Coupling Strategy Achieving In Situ Synthesis of Agglomeration-Free Solid Composite Electrolytes. J Phys Chem Lett 2024; 15:733-743. [PMID: 38226607 DOI: 10.1021/acs.jpclett.3c03072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2024]
Abstract
Solid composite electrolytes (SCEs) synergize inorganic and polymer merits for viable commercial application. However, inferior filler-polymer interfacial stability ultimately leads to the agglomeration of inorganic particles and greatly impedes Li+ migration. Herein, triethoxyvinylsilane (VTEO) is employed to form a strong chemical interaction between poly(vinylene carbonate) (PVC) and montmorillonite (MMT) via in situ solidification, which eliminates the agglomeration and improves interfacial compatibility. Consequently, the obtained solid composite electrolytes (PVC-s-MMT) achieve increased Li+ conductivity (0.4 mS cm-1 at 25 °C), enhanced transference number (0.74), and increased oxidation potential (5.2 V). The Li/PVC-s-MMT/LiFePO4 cells exhibit outstanding cycling performance (>99.5% after 600 cycles) at 1C at room temperature. Moreover, density functional theory (DFT) calculations are applied to uncover the fast interfacial conducting channels of PVC-s-MMT. Our work provides a feasible in situ synthesis method to prepare agglomeration-free SCEs, which is highly compatible with existing battery production processes of liquid electrolytes.
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Affiliation(s)
- Yuanze Zhu
- College of Chemistry and Chemical Engineering, Nantong University, Seyuan 9, Nantong 226019, China
- Key Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical Industry, College of Energy, Soochow University, Suzhou 215006, People's Republic of China
| | - Yiwei Zheng
- Key Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical Industry, College of Energy, Soochow University, Suzhou 215006, People's Republic of China
| | - Jie Liu
- College of Chemistry and Chemical Engineering, Nantong University, Seyuan 9, Nantong 226019, China
| | - Lifang Zhang
- College of Chemistry and Chemical Engineering, Nantong University, Seyuan 9, Nantong 226019, China
| | - Xuyan Ni
- Key Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical Industry, College of Energy, Soochow University, Suzhou 215006, People's Republic of China
| | - Jinqiu Zhou
- College of Chemistry and Chemical Engineering, Nantong University, Seyuan 9, Nantong 226019, China
| | - Mengfan Wang
- Key Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical Industry, College of Energy, Soochow University, Suzhou 215006, People's Republic of China
| | - Tao Qian
- College of Chemistry and Chemical Engineering, Nantong University, Seyuan 9, Nantong 226019, China
| | - Chenglin Yan
- Key Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical Industry, College of Energy, Soochow University, Suzhou 215006, People's Republic of China
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Liu M, He H, Zhang J, Xin S, Lu Q, Zhang L, Ren W. Retinitis after haematopoietic stem cell transplantation with multiple intraocular viral infections (cytomegalovirus, Epstein‒Barr virus and herpes simplex virus)- a case report. BMC Ophthalmol 2024; 24:38. [PMID: 38267915 PMCID: PMC10809542 DOI: 10.1186/s12886-024-03300-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 01/15/2024] [Indexed: 01/26/2024] Open
Abstract
BACKGROUND To report a case of retinitis with multiple intraocular viral infections after second haematopoietic stem cell transplantation. CASE PRESENTATION A 39-year-old female patient developed retinitis after a second haematopoietic stem cell transplant. Right eye was tested for three viral infections- cytomegalovirus, Epstein‒Barr virus and herpes simplex virus, while left was infected with cytomegalovirus. The patient was subsequently treated with vitreous cavity ganciclovir injections, and 1 week later both eyes tested negative for aqueous humour viruses. DISCUSSION AND CONCLUSION CMV, EBV and HSV belong to the herpes virus family. They are all commonly observed in the body and represent opportunity infectious viruses. The retinitis they cause have different characteristics. But simultaneous infection of the eye by multiple viruses is quite rare. In this case, three viruses were detected in the patient's eye, but whether the retina was caused by all three viruses at the same time could not be determined. A satisfactory outcome was achieved after treatment with vitreous cavity ganciclovir injection.
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Affiliation(s)
- Mengyun Liu
- Department of Ophthalmology, The Affiliated People's Hospital of Ningbo University, The Eye Hospital of Wenzhou Medical University (Ningbo Branch), 315040, Ningbo, People's Republic Of China
| | - Hengqian He
- Department of Ophthalmology, The Affiliated People's Hospital of Ningbo University, The Eye Hospital of Wenzhou Medical University (Ningbo Branch), 315040, Ningbo, People's Republic Of China
| | - Juntao Zhang
- Department of Ophthalmology, The Affiliated People's Hospital of Ningbo University, The Eye Hospital of Wenzhou Medical University (Ningbo Branch), 315040, Ningbo, People's Republic Of China
| | - Shuanghua Xin
- Department of Ophthalmology, The Affiliated People's Hospital of Ningbo University, The Eye Hospital of Wenzhou Medical University (Ningbo Branch), 315040, Ningbo, People's Republic Of China
| | - Qinkang Lu
- Department of Ophthalmology, The Affiliated People's Hospital of Ningbo University, The Eye Hospital of Wenzhou Medical University (Ningbo Branch), 315040, Ningbo, People's Republic Of China
| | - Lifang Zhang
- Department of Ophthalmology, The Affiliated People's Hospital of Ningbo University, The Eye Hospital of Wenzhou Medical University (Ningbo Branch), 315040, Ningbo, People's Republic Of China
| | - Weina Ren
- Department of Ophthalmology, The Affiliated People's Hospital of Ningbo University, The Eye Hospital of Wenzhou Medical University (Ningbo Branch), 315040, Ningbo, People's Republic Of China.
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Li L, Sun M, Hao B, Chen W, Zhu C, Zhang L, Shen X, Zhou X, Zhou J, Yan C, Liu X, Qian T. Dilemma of Low-Cost Filter Paper as Separator: Toughen Its Wet Strength for Robust Aqueous Zinc-Ion Batteries. J Phys Chem Lett 2024; 15:380-390. [PMID: 38175719 DOI: 10.1021/acs.jpclett.3c03113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
The industrialization of aqueous zinc-ion batteries (AZIBs) is hampered by poor-performance separators. Filter paper (FP), with mature production processes and low prices, has potential as a separator. However, its swelling and decline of mechanical durability in aqueous environments make it easily punctured by dendrites. In response, wet strength promotion is proposed to toughen FP for robust AZIBs, termed wet-strengthened FP (WSFP). Due to the self-cross-linking network formed on cellulose fibers, water molecules are prevented from easily permeating and disrupting the hydrogen bonds between cellulose molecules. Moreover, the positively charged network can anchor SO42-, thus increasing the Zn2+ transference number and facilitating uniform zinc deposition. Surprisingly, the half and full cells with the WSFP separator present much more stable cycling than untreated FP and glass fiber (GF) separators. These results suggest that robust and low-cost WSFP separators provide a new avenue for the development of high-performance AZIBs with potential for commercialization.
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Affiliation(s)
- Linhe Li
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
- Zhejiang Tianneng Battery Co., Ltd., Changxing 313100, China
| | - Meizhu Sun
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Baojiu Hao
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Wanhao Chen
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Changhao Zhu
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Lifang Zhang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Xiaowei Shen
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Xi Zhou
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Jinqiu Zhou
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Chenglin Yan
- School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
- Key Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical Industry, College of Energy, Soochow University, Suzhou 215006, China
| | - Xuejun Liu
- College of Chemistry and Chemical Engineering, State Key Laboratory of Bio-fibers and Eco-textiles, Qingdao University, Qingdao 266071, China
| | - Tao Qian
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
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22
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Cao F, Zhang LF, Li M, Xie Z. Subjective well-being among PhD students in mainland China: the roles of psychological capital and academic engagement. Front Psychol 2024; 15:1354451. [PMID: 38304918 PMCID: PMC10830902 DOI: 10.3389/fpsyg.2024.1354451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 01/05/2024] [Indexed: 02/03/2024] Open
Abstract
The mental well-being of PhD students is a major concern in higher education. However, very few studies have investigated the influencing factors of PhD students' subjective well-being (SWB) - an important indicator of mental well-being. Even no study on the influencing factors of PhD students' SWB has been undertaken in mainland China. Based on job demands-resources theory, the present study pioneers the investigation of the relationship between PhD students' psychological capital (PsyCap; comprising self-efficacy, hope, resilience, and optimism) and SWB (comprising positive affect, negative affect, and life satisfaction) in mainland China. It further examined the mediating role of academic engagement (comprising vigor, dedication, and absorption) in this relationship. PhD students (n = 376) from two comprehensive universities in Jiangsu province responded to an online survey. The results showed that (1) self-efficacy was positively associated with life satisfaction, hope was positively associated with positive affect, optimism was significantly associated with all three dimensions of SWB, but resilience was not significantly associated with any of the three SWB dimensions; and (2) dedication mediated the relationship between hope and life satisfaction and that between optimism and negative affect and life satisfaction, but vigor and absorption did not mediate any of the PsyCap-SWB relationships. Limitations and practical implications of this study are discussed.
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Affiliation(s)
- Fei Cao
- Faculty of Education, The University of Hong Kong Special Administrative Region, Hong Kong, China
| | - Li-fang Zhang
- Faculty of Education, The University of Hong Kong Special Administrative Region, Hong Kong, China
| | - Mengting Li
- School of Education Science, Nanjing Normal University, Nanjing, China
| | - Zhengli Xie
- Faculty of Humanities, The Hong Kong Polytechnic University Special Administrative Region, Hong Kong, China
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23
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Sun Y, Liu P, Zhang L, Lei S, Gao Q. Peripheral Blood CD8+T Cell as a Prognostic Biomarker for Hospitalised COVID-19 Patients Without Antiviral Treatment. Infect Drug Resist 2024; 17:109-117. [PMID: 38230269 PMCID: PMC10790588 DOI: 10.2147/idr.s432283] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 12/14/2023] [Indexed: 01/18/2024] Open
Abstract
Background The status of T lymphocyte subset counts in patients with COVID-19 remains uncertain. This study aimed to assess alterations in peripheral blood CD3+CD8+T (CD8+T) cells among hospitalized COVID-19 patients who have not received antiviral treatment and to evaluate their prognostic value within this patient population. Methods A single-center, retrospective cohort study and a meta-analysis were conducted. The cohort study was performed at Xiangya Hospital from December 5, 2022, to January 31, 2023. We conducted a meta-analysis to explore the association between peripheral blood CD3+CD8+T cells and mortality in COVID-19 patients who did not receive antiviral therapy. All relevant studies in Embase, PubMed, Web of Science databases were systematically searched for meta-analysis. Results The retrospective cohort study included 201 patients. A significant decrease in peripheral blood CD8+ T cell count was found to be associated with an increased risk of mortality (adjusted odds ratio [aOR]: 13.88; 95% confidence interval [CI]: 3.15-61.23), after adjusting for gender, age, comorbidities, severity at admission, steroid therapy, and antibiotic therapy. The threshold value for CD8+T cell counts, determined by the receiver operating characteristic (ROC) curve analysis, was 145.5 (area under the curve [AUC]: 0.828, specificity: 90.3%, sensitivity: 72.9%, P<0.001). Additionally, A total of 7 studies with 2765 participants were included in the meta-analysis. The meta-analysis reveals a significant association between lower CD8+ T cell counts and mortality (odds ratio [OR] = 3.543, 95% CI: 1.726 to 7.272; I2=93%). Conclusion Peripheral blood CD8+ T cell can serve as a valuable prognostic biomarker for hospitalized patients who do not receive antiviral treatment.
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Affiliation(s)
- Yuming Sun
- Department of Plastic and Cosmetic Surgery, Xiangya Hospital, Central South University, Changsha, People’s Republic of China
- National Engineering Research Centre of Personalized Diagnostic and Therapeutic Technology, Xiangya Hospital, Central South University, Changsha, People’s Republic of China
- Furong Laboratory, Central South University, Changsha, People’s Republic of China
- Hunan Key Laboratory of Skin Cancer and Psoriasis, Hunan Engineering Research Centre of Skin Health and Disease, Xiangya Hospital, Central South University, Changsha, People’s Republic of China
- National Clinical Research Centre for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, People’s Republic of China
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, People’s Republic of China
| | - Peilin Liu
- Clinical Laboratory Department, Xiangya Hospital, Central South University, Changsha, People’s Republic of China
| | - Lifang Zhang
- Department of Plastic and Cosmetic Surgery, Changsha Mylike Cosmetic Hospital, Changsha, People’s Republic of China
| | - Shaorong Lei
- Department of Plastic and Cosmetic Surgery, Xiangya Hospital, Central South University, Changsha, People’s Republic of China
| | - Qian Gao
- Clinical Laboratory Department, Xiangya Hospital, Central South University, Changsha, People’s Republic of China
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Luo S, Sun X, Zhang L, Miao Y, Yan G. Preparation of room-temperature phosphorescence-ratiometric fluorescence magnetic mesoporous imprinted microspheres and its application in detection of malachite green and tartrazine in multimatrix. Food Chem 2024; 430:137096. [PMID: 37562263 DOI: 10.1016/j.foodchem.2023.137096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 07/22/2023] [Accepted: 08/02/2023] [Indexed: 08/12/2023]
Abstract
The photoluminescent properties of Mn-doped ZnS quantum dots were fully exploited, and room-temperature phosphorescence (RTP)-ratiometric fluorescence (RF) magnetic mesoporous molecularly imprinted polymers (PFMM-MIPs) were prepared by integrating molecular imprinting technology. RTP was used to detect malachite green (MG). The fluorescence at 420 nm and the peak at 590 nm in the fluorescence mode were used as the response reference signals respectively to detect tartrazine (TZ). The linear responsive range and detection limit of MG were 0.01-150 μM and 4.3 nM, and these of TZ were 0.05-80 μM and 23.7 nM. RTP, which can avoid the interference of background fluorescence, and RF with self-calibration ability can both largely weaken the matrix effect. This work enables single-probe-type MIPs to achieve dual-target analysis via RTP and RF. This method provides excellent sensitivity, specificity, recovery and recyclability, and is expected to be prospectively applied in the fields of food, environment and biological analyses.
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Affiliation(s)
- Shiqing Luo
- School of Chemistry and Materials Science, Shanxi Normal University, Taiyuan 030000, China
| | - Xiaojie Sun
- School of Chemistry and Materials Science, Shanxi Normal University, Taiyuan 030000, China
| | - Lifang Zhang
- School of Chemistry and Materials Science, Shanxi Normal University, Taiyuan 030000, China; Research Institute of Materials Science of Shanxi Normal University & Collaborative Innovation Center for Shanxi Advanced Permanent Magnetic Materials and Technology, Taiyuan 030000, China.
| | - Yanming Miao
- School of Life Science, Shanxi Normal University, Taiyuan 030000, China
| | - Guiqin Yan
- School of Life Science, Shanxi Normal University, Taiyuan 030000, China
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Ma N, Zhang M, Xu G, Zhang L, Luo M, Luo M, Wang X, Tang H, Wang X, Liu L, Zhong X, Feng J, Li Y. Mesenchymal Stem Cell-derived Type II Alveolar Epithelial Progenitor Cells Attenuate LPS-induced Acute Lung Injury and Reduce P63 Expression. Curr Stem Cell Res Ther 2024; 19:245-256. [PMID: 37138488 DOI: 10.2174/1574888x18666230501234836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 02/26/2023] [Accepted: 02/28/2023] [Indexed: 05/05/2023]
Abstract
AIM Acute respiratory distress syndrome (ARDS)/acute lung injury (ALI) is a severe clinical respiratory-failure disease mainly characterized by acute damage to the alveolar epithelium and pulmonary vascular endothelial cells. Stem cell therapy has emerged as a potential regenerative strategy for ARDS/ALI, however, the outcome is limited, and the underlying mechanisms are unclear. INTRODUCTION We established a differentiation system for bone marrow-derived mesenchymal stem cellderived (BM-MSC) type II alveolar epithelial progenitor cells (AECIIs) and assessed their regulatory effects on lipopolysaccharide (LPS)-induced ALI. METHODS We induced BM-MSC differentiation into AECIIs using a specific conditioned medium. After 26 days of differentiation, 3×105 BM-MSC-AECIIs were used to treat mice with LPS-induced ALI through tracheal injection. RESULTS After tracheal injection, BM-MSC-AECIIs migrated to the perialveolar area and reduced LPSinduced lung inflammation and pathological injury. RNA-seq suggested that P63 protein was involved in the effects of BM-MSC-AECIIs on lung inflammation. CONCLUSION Our results suggest that BM-MSC-AECIIs may reduce LPS-induced acute lung injury by decreasing P63 expression.
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Affiliation(s)
- Ning Ma
- Inflammation & Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Mengwei Zhang
- Inflammation & Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Guofeng Xu
- Inflammation & Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Lifang Zhang
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Min Luo
- Inflammation & Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Meihua Luo
- Inflammation & Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Xing Wang
- Inflammation & Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Hongmei Tang
- Inflammation & Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Xiaoyun Wang
- Inflammation & Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Li Liu
- Laboratory of Anesthesiology, Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Xiaolin Zhong
- Department of Gastroenterology, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Jianguo Feng
- Laboratory of Anesthesiology, Southwest Medical University, Luzhou, 646000, Sichuan, China
| | - Yuying Li
- Inflammation & Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
- Department of Respiratory and Critical Care Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
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Wang Z, Xu J, Zhang Y, Chen C, Kong C, Tang L, Jiang Y, Yu R, Zong Q, Zhang L, Wang D. Prediction of acute kidney injury incidence following acute type A aortic dissection surgery with novel biomarkers: a prospective observational study. BMC Med 2023; 21:503. [PMID: 38110934 PMCID: PMC10729328 DOI: 10.1186/s12916-023-03215-9] [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: 08/16/2023] [Accepted: 12/05/2023] [Indexed: 12/20/2023] Open
Abstract
BACKGROUND Acute kidney injury (AKI) is a prevalent complication following acute type A aortic dissection (ATAAD) surgery and is closely associated with unfavorable prognostic outcomes. Hence, the development of a robust and efficient diagnostic approach to identify high-risk patients is of paramount importance. METHODS We conducted a prospective study involving 328 patients who underwent ATAAD surgery at our institution, comprising three distinct cohorts. In addition, 52 patients undergoing alternative cardiopulmonary surgeries and 37 healthy individuals were enrolled as control groups. Employing proteomic analysis, we initially identified plasma proteins potentially linked to AKI occurrence within the plasma proteomic cohort. Subsequent validation was performed in an independent cohort. Utilizing predictors derived from multivariate logistic regression analysis, a nomogram was meticulously formulated and its efficacy was validated in the model construction cohort. RESULTS Proteomics revealed significant elevation of plasma levels of S100A8/A9, pentraxin 3 (PTX3), and chitinase 3-like 1 (CHI3L1) immediately post-surgery in patients who developed ATAAD surgery-associated AKI (ASA-AKI). Receiver operating characteristic (ROC) curves demonstrated impressive predictive performance of S100A8/A9, PTX3, and CHI3L1 at 0 h post-surgery, yielding area under the curve (AUC) values of 0.823, 0.786, and 0.803, respectively, for ASA-AKI prediction. Furthermore, our findings exhibited positive correlations between plasma levels of S100A8/A9, PTX3, CHI3L1, and urinary neutrophil gelatinase-associated lipocalin (NGAL) at 0 h post-surgery, along with correlations between plasma S100A8/A9, CHI3L1 levels, and the Cleveland Clinic score. A logistic regression model incorporating plasma S100A8/A9, PTX3, CHI3L1 levels, urinary NGAL levels, and the Cleveland Clinic score facilitated the construction of a predictive nomogram for ASA-AKI. This nomogram demonstrated robust discriminative ability, achieving an AUC of 0.963 in the model construction cohort. CONCLUSIONS Our study underscored the augmentation of plasma S100A8/A9, PTX3, and CHI3L1 levels immediately post-surgery in patients developing ASA-AKI. The incorporation of these three biomarkers, in conjunction with the Cleveland Clinic score and NGAL, into a nomogram demonstrated commendable predictive efficacy. This presents a practical tool for identifying patients at an elevated risk of AKI following ATAAD surgery.
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Affiliation(s)
- Zhigang Wang
- Department of Cardio-Thoracic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Jingfang Xu
- Department of Nephrology, Ningbo First Hospital, Ningbo, China
| | - Yu Zhang
- Department of Pharmacology, College of Pharmacy, Harbin Medical University, Harbin, China
| | - Cheng Chen
- Department of Cardio-Thoracic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Chuiyu Kong
- Department of Cardio-Thoracic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Lu Tang
- Department of Cardio-Thoracic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Yi Jiang
- Department of Cardiovascular Surgery, Nanjing Drum Tower Hospital, Chinese Academy of Medical Science & Peking Union Medical, Beijing, China
| | - Ronghuang Yu
- Department of Cardio-Thoracic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Qiuyan Zong
- Department of Cardio-Thoracic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Lifang Zhang
- Department of Psychiatry, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, China
| | - Dongjin Wang
- Department of Cardio-Thoracic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China.
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Zhou X, Hu Y, Xu L, Li Y, Zhang L, Cao Y, Zhou J, Qian T. Emission enhanced fluorometric biosensor by functionalized carbon polymer dots for glutathione detection in human real samples and molecular logic gate operation. Spectrochim Acta A Mol Biomol Spectrosc 2023; 303:123227. [PMID: 37544217 DOI: 10.1016/j.saa.2023.123227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/24/2023] [Accepted: 08/01/2023] [Indexed: 08/08/2023]
Abstract
Glutathione (GSH), an active peptide, plays pivotal roles in many physiological processes and detection of GSH inside of human body is of great importance for the playing of its biological effects. Here silver-phosphorus co-doped carbonized polymer dots (Ag@PCPDs) were prepared via solvothermal treatment of citric acid and phytic acid in the presence of Ag+ for GSH determination. The physicochemical and optical performance of the Ag@PCPDs were characterized by X-ray photoelectron spectroscopy (XPS), Fourier-transform infrared (FT-IR), X-ray powder diffraction (XRD), Raman spectroscopy, transmission electron microscopy (TEM), fluorescence spectroscopy and ultraviolet-visible (UV-Vis) spectroscopy analyses. The prepared Ag@PCPDs have outstanding water solubility with high monodispersity (7.81 ± 0.31 nm) and exhibited excellent optical properties with excitation-dependent emission, high photostability, pH, and ionic strength tolerance. An optimized excitation at 358 nm, the Ag@PCPDs showed strong photoluminescent (PL) emission at 456 nm with a PL quantum yield (QYs) of 15.6%. Furthermore, the Ag@PCPDs were used as a PL sensing platform for detection GSH in a linear range of 0-200 μM with a low limit of detection at 0.68 μM. In addition, the proposed system can construct molecular logic gates with GSH and Fe3+ ions as the chemical inputs and PL emissions as the output. And the Ag@PCPDs were successfully used for GSH determination in real samples resulting in high sensitivity and satisfactory recoveries (92.81--107.45%). More importantly, the Ag@PCPDs showed low cytotoxicity at 500 μg/mL and superior cell imaging capability in HeLa cells, which offer a new path for detection and categorization of GSH in biomedical applications.
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Affiliation(s)
- Xi Zhou
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Yun Hu
- Institute of Chemical Industry of Forestry Products, Chinese Academy of Forestry, Nanjing 210042, China
| | - Lina Xu
- Institute of Chemical Industry of Forestry Products, Chinese Academy of Forestry, Nanjing 210042, China
| | - Yufei Li
- Pinghu Institute of Advanced Materials, Zhejiang University of Technology, Pinghu 314200, China
| | - Lifang Zhang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Yufeng Cao
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Jinqiu Zhou
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China.
| | - Tao Qian
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China.
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Zhang L, Altemus J, Ding L, Cherepanova O, Byzova TV, Podrez EA. Enhanced Akt3 kinase activity reduces atherosclerosis in hyperlipidemic mice in a gender-dependent manner. J Biol Chem 2023; 299:105425. [PMID: 37926285 PMCID: PMC10716582 DOI: 10.1016/j.jbc.2023.105425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 10/10/2023] [Accepted: 10/13/2023] [Indexed: 11/07/2023] Open
Abstract
Akt3 is one of the three members of the serine/threonine protein kinase B (AKT) family, which regulates multiple cellular processes. We have previously demonstrated that global knockout of Akt3 in mice promotes atherogenesis in a macrophage-dependent manner. Whether enhanced Akt3 kinase activity affects atherogenesis is not known. In this study, we crossed atherosclerosis-prone ApoE-/- mice with a mouse strain that has enhanced Akt3 kinase activity (Akt3nmf350) and assessed atherosclerotic lesion formation and the role of macrophages in atherogenesis. Significant reduction in atherosclerotic lesion area and macrophage accumulation in lesions were observed in ApoE-/-/Akt3nmf350 mice fed a Western-type diet. Experiments using chimeric ApoE-/- mice with either ApoE-/-/Akt3nmf350 bone marrow or ApoE-/- bone marrow cells showed that enhanced Akt3 activity specifically in bone marrow-derived cells is atheroprotective. The atheroprotective effect of Akt3nmf350 was more pronounced in male mice. In line with this result, the release of the pro-inflammatory cytokines IL-6, MCP1, TNF-α, and MIP-1α was reduced by macrophages from male but not female ApoE-/-/Akt3nmf350 mice. Levels of IL-6 and TNF-α were also reduced in atherosclerotic lesions of ApoE-/-/Akt3nmf350 male mice compared to ApoE-/- mice. Macrophages from male ApoE-/-/Akt3nmf350 mice were also more resistant to apoptosis in vitro and in vivo and tended to have more pronounced M2 polarization in vitro. These findings demonstrated that enhanced Akt3 kinase activity in macrophages protects mice from atherosclerosis in hyperlipidemic mice in a gender-dependent manner.
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Affiliation(s)
- Lifang Zhang
- Department of Inflammation & Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA; Department of Chemistry, Cleveland State University, Cleveland, Ohio, USA
| | - Jessica Altemus
- Department of Inflammation & Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Liang Ding
- Department of Inflammation & Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Olga Cherepanova
- Department of Cardiovascular & Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Tatiana V Byzova
- Department of Neurosciences, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Eugene A Podrez
- Department of Inflammation & Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA.
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Zhou J, Hao B, Meng Y, Yang H, Chen W, Zhang L, Liu J, Yan C, Qian T. Leveling the Zn Anode by Crystallographic Orientation Manipulation. Nano Lett 2023; 23:10148-10156. [PMID: 37922398 DOI: 10.1021/acs.nanolett.3c02379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2023]
Abstract
Dendrite growth and corrosion of Zn metal anodes result in the limited reversibility of aqueous Zn metal batteries (ZMBs), hindering their prospects as large-scale energy storage devices. Inspired by the similarity of conventional electroplating industrial engineering and Zn deposition in ZMBs, we tend to utilize a low-cost leveling agent (LEA), 1,4-butynediol, to level the Zn deposition. Combining theoretical with in situ experimental characterizations, the preferential adsorption of LEA molecules on different lattice planes can contribute to crystallographic orientation manipulation of the (002) plane, causing good inhibition of dendrite growth. Additionally, the adsorption of LEA molecules on the Zn surface can also prevent undesirable corrosion. Endowed with these merits, symmetric cells and full cells with the LEA additive achieve improved stability and reversibility. This work provides new inspiration for introducing traditional electroplating additives into high-performance ZMBs and gives researchers a direction for choosing electrolyte additives, which also has potential to be applied to other metal anodes.
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Affiliation(s)
- Jinqiu Zhou
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Baojiu Hao
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Yuan Meng
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Hao Yang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Wanhao Chen
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Lifang Zhang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Jie Liu
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Chenglin Yan
- School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
- Key Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical Industry, College of Energy, Soochow University, Suzhou 215006, China
- Light Industry Institute of Electrochemical Power Sources, Suzhou 215006, China
| | - Tao Qian
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
- Light Industry Institute of Electrochemical Power Sources, Suzhou 215006, China
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Liu J, Zhang H, Zhang L, Li T, Liu N, Liu Q. Effect of various concentrations of common organic solvents on the growth and proliferation ability of Candida glabrata and their permissible limits for addition in drug susceptibility testing. PeerJ 2023; 11:e16444. [PMID: 38025727 PMCID: PMC10668856 DOI: 10.7717/peerj.16444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 10/20/2023] [Indexed: 12/01/2023] Open
Abstract
Objectives Dimethyl sulfoxide (DMSO), acetone, ethanol, and methanol are organic solvents commonly used for dissolving drugs in antimicrobial susceptibility testing. However, these solvents have certain antimicrobial activity. Currently, standardized criteria for the selection and dosage of drug solvents in drug susceptibility testing research are lacking. The study aims to provide experimental evidence for the selection and addition limit of drug solvents for the in vitro antifungal susceptibility test of Candida glabrata (C. glabrata). Methods According to the recommendation of the Clinical and Laboratory Standards Institute (CLSI) M27-A3, a 0.5 McFarland C. glabrata suspension was prepared and then diluted 1:1,000. Next, a gradient dilution method was used to prepare 20%, 10%, 5%, and 2.5% DMSO/acetone/ethanol/methanol. The mixture was plated onto a 96-well plate and incubated at a constant temperature of 35 °C for 48 h. The inhibitory effects of DMSO, acetone, ethanol, and methanol on C. glabrata growth and proliferation were analyzed by measuring optical density values at 600 nm (OD600 values). Results After 48 h incubation, the OD600 values of C. glabrata decreased to different extents in the presence of the four common organic solvents. The decrease in the OD600 values was greater with increasing concentrations within the experimental concentration range. When DMSO and acetone concentrations were higher than 2.5% (containing 2.5%) and methanol and ethanol concentrations were higher than 5.0% (containing 5.0%), the differences were statistically significant compared with the growth control wells without any organic solvent (P < 0.05). Conclusion All four organic solvents could inhibit C. glabrata growth and proliferation. When used as solvents for drug sensitivity testing in C. glabrata, the concentrations of DMSO, acetone, ethanol, and methanol should be below 2.5%, 2.5%, 5%, and 5%, respectively.
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Affiliation(s)
- Juan Liu
- Hebei Key Laboratory of Stomatology, Hebei Clinical Research Center for Oral Disease, School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Hongxin Zhang
- Department of Emergency, The Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Lifang Zhang
- Hebei Key Laboratory of Stomatology, Hebei Clinical Research Center for Oral Disease, School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Ting Li
- Hebei Key Laboratory of Stomatology, Hebei Clinical Research Center for Oral Disease, School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Na Liu
- Department of Preventive Dentistry, School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, Hebei, China
| | - Qing Liu
- Hebei Key Laboratory of Stomatology, Hebei Clinical Research Center for Oral Disease, School and Hospital of Stomatology, Hebei Medical University, Shijiazhuang, Hebei, China
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Cai Y, Ren J, Jin J, Shao H, Wang P, Cheng K, Jiang P, Jiang P, Zhu S, Zhu G, Zhang L. Novel affibody molecules as potential agents in molecular imaging for MAGE-A3-positive tumor diagnosis. Environ Res 2023; 237:116895. [PMID: 37586454 DOI: 10.1016/j.envres.2023.116895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 08/07/2023] [Accepted: 08/13/2023] [Indexed: 08/18/2023]
Abstract
BACKGROUND The cancer-testis protein melanoma antigen A3 (MAGE-A3) is highly expressed in a broad range of malignant tumor forms. It has been confirmed that affibody molecules, a novel family of small (∼6.5 kDa) targeting proteins, are useful agents for molecular imaging and targeted tumor treatment. As a novel agent for in vivo molecular imaging detection of MAGE-A3-positive tumors, the efficacy of affibody molecules was assessed in this research. METHODS In this study, three cycles of phage display library screening resulted in the isolation of two new affibody molecules (ZMAGE-A3:172 and ZMAGE-A3:770) that attach to MAGE-A3. These molecules were then expressed in bacteria and purified. The affibody molecules with high affinity and specificity were evaluated using western blotting, immunohistochemistry, indirect immunofluorescence, surface plasmon resonance, and near-infrared optical imaging of tumor-bearing nude mice. RESULTS The selected ZMAGE-A3 affibodies can precisely bind to the MAGE-A3 protein in living cells and display high-affinity binding to the MAGE-A3 protein at the molecular level. Furthermore, the accumulation of DyLight755-labeled ZMAGE-A3:172 or ZMAGE-A3:770 in MAGE-A3-positive tumors was achieved as early as 30 min and disappeared at 48 h post-injection. CONCLUSION Our findings support the potential of the two MAGE-A3 protein-binding affibody molecules for their use as molecular imaging agents.
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Affiliation(s)
- Yiqi Cai
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, PR China
| | - Jiahuan Ren
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, PR China
| | - Jinji Jin
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, PR China
| | - Huanyi Shao
- Department of Pediatric Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, PR China
| | - Pengfei Wang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, PR China
| | - Kai Cheng
- Department of Dermatology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, PR China
| | - Peipei Jiang
- Department of Breast Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, PR China
| | - Pengfei Jiang
- Institute of Molecular Virology and Immunology, Department of Medical Microbiology and Immunology, Wenzhou Medical University, Wenzhou, Zhejiang, 325000, PR China
| | - Shanli Zhu
- Institute of Molecular Virology and Immunology, Department of Medical Microbiology and Immunology, Wenzhou Medical University, Wenzhou, Zhejiang, 325000, PR China
| | - Guanbao Zhu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, PR China.
| | - Lifang Zhang
- Institute of Molecular Virology and Immunology, Department of Medical Microbiology and Immunology, Wenzhou Medical University, Wenzhou, Zhejiang, 325000, PR China.
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Zhu C, He X, Shi Y, Wang Z, Hao B, Chen W, Yang H, Zhang L, Ji H, Liu J, Yan C, Zhou J, Qian T. Strong Replaces Weak: Design of H-Bond Interactions Enables Cryogenic Aqueous Zn Metal Batteries. ACS Nano 2023; 17:21614-21625. [PMID: 37916674 DOI: 10.1021/acsnano.3c06687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
Despite the numerous advantages of aqueous Zn batteries, their practical application under cryogenic conditions is hindered by the freezing of the electrolyte because the abundance of hydrogen bonds (H-bonds) between H2O molecules drives the aqueous system to transform to an orderly frozen structure. Here, a design of H-bond interactions based on the guiding ideology of "strong replaces weak" is proposed. The strong H-bonds formed between introduced eutectic components and water molecules break down the weak H-bonds in the original water molecule network, which contributes to an ultralow freezing point and a high ionic conductivity of 1.7 mS cm-1 at -40 °C. Based on multiperspective theoretical simulations and tailor-made in situ cooling Raman characterizations, it has been demonstrated that substituting weak H-bonds with strong H-bonds facilitates the structural reshaping of Zn2+ solvation and remodeling of the H-bond network in the electrolyte. Endowed with this advantage, reversible and stable Zn plating/stripping behaviors could be realized at -40 °C, and the full cells display a high discharge capacity (200 mA h g-1) at -40 °C with ∼75% capacity retention after 1000 cycles. This study will expand the design philosophy of antifreezing aqueous electrolytes and provide a perspective to promote the adoption of Zn metal batteries for cryogenic environment large-scale energy storage.
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Affiliation(s)
- Changhao Zhu
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, People's Republic of China
| | - Xuye He
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, People's Republic of China
| | - Yun Shi
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, People's Republic of China
| | - Zhenkang Wang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, People's Republic of China
| | - Baojiu Hao
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, People's Republic of China
| | - Wanhao Chen
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, People's Republic of China
| | - Hao Yang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, People's Republic of China
| | - Lifang Zhang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, People's Republic of China
| | - Haoqing Ji
- Key Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical Industry, College of Energy, Soochow University, Suzhou 215006, People's Republic of China
| | - Jie Liu
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, People's Republic of China
| | - Chenglin Yan
- School of Petrochemical Engineering, Changzhou University, Changzhou 213164, People's Republic of China
- Key Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical Industry, College of Energy, Soochow University, Suzhou 215006, People's Republic of China
- Light Industry Institute of Electrochemical Power Sources, Suzhou 215006, People's Republic of China
| | - Jinqiu Zhou
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, People's Republic of China
| | - Tao Qian
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, People's Republic of China
- Light Industry Institute of Electrochemical Power Sources, Suzhou 215006, People's Republic of China
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Hao B, Yang H, Wang Z, Xie Z, Zhu C, Chen W, Zhang L, Liu J, Yan C, Zhou J, Qian T. Trapping High-Activity Water in Nature-Inspired Plant-Derived Separator to Realize Ultrastable Interfacial Chemistry of Zn Anode. J Phys Chem Lett 2023; 14:9986-9995. [PMID: 37906171 DOI: 10.1021/acs.jpclett.3c02482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
Side reactions caused by highly active water molecules, including severe corrosion, hydrogen evolution, and dendrite growth, are impediments to the advancement of aqueous zinc ion batteries (ZIBs). Here, inspired by the pivotal role of plant fibers to prevent dehydration in nature, we designed a unique water-retaining plant fiber (WRPF) separator with strong hygroscopic ability to adsorb and trap water molecules. Elaborated theoretical and experimental characterizations prove that high-activity water could be sequestered by a WRPF separator, alleviating water-induced side reactions and accelerating the desolvation of hydrate Zn2+. Prominently, reversible Zn plating and stripping could be realized in Zn//Cu batteries. Even with elevated cathodic mass loading (21.94 mg cm-2), the Zn//VS2 full cell delivers high areal capacity 3.3 mAh cm-2 and well-maintained stability. The present study offers a versatile design strategy for separators using nature-inspired materials, aiming to address the challenging issue of "water" and achieve ultrastable interfacial chemistry of Zn anode.
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Affiliation(s)
- Baojiu Hao
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Hao Yang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Zhenkang Wang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Zhihui Xie
- Songjiang Power Supply Company, State Grid Shanghai Electric Power Company, Shanghai 201699, China
| | - Changhao Zhu
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Wanhao Chen
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Lifang Zhang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Jie Liu
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Chenglin Yan
- School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
- Key Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical Industry, College of Energy, Soochow University, Suzhou 215006, China
- Light Industry Institute of Electrochemical Power Sources, Suzhou 215006, China
| | - Jinqiu Zhou
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Tao Qian
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
- Light Industry Institute of Electrochemical Power Sources, Suzhou 215006, China
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Mo J, Xiang J, Li J, Yang M, Zhang Z, Zhang L, Zhang G, Yang Y, Liu G, Lu Y, Hu D, Si H. Natural Magnolol ameliorates coccidiosis infected with Eimeria tenella by affecting antioxidant, anti-inflammatory, and gut microbiota of chicks. Poult Sci 2023; 102:102975. [PMID: 37708766 PMCID: PMC10506099 DOI: 10.1016/j.psj.2023.102975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 07/24/2023] [Accepted: 07/24/2023] [Indexed: 09/16/2023] Open
Abstract
Magnolol, a natural extract from magnolia officinalis, has received growing interest in its bioactive properties such as antioxidant, anti-inflammatory, and antibacterial activities. Nevertheless, there is little research on Magnolol in the treatment of parasitic infections currently. Eimeria tenella (E. tenella) infection causes damage to epithelial cells and cecal mucosa, resulting in increased intestinal permeability, which is pretty detrimental to the balance of the intestinal microenvironment. However, at present, in the treatment of chicken coccidiosis, the abuse of antibiotics is quite serious, which has brought losses and harms to the chicken farming industry that cannot be ignored. In this study, based on the excellent antioxidant and anti-inflammatory properties of Magnolol, we proved that it does have a desirable therapeutic potential on chicks infected with E. tenella. Actually, the results showed that the clinical symptoms of the chicks infected with E. tenella were relieved and their growth performance was restored by Magnolol treatment. Furthermore, Magnolol improved the antioxidant and anti-inflammatory properties of chicks. Meanwhile, the Magnolol reversed the imbalance of the intestinal microbiota of sick chicks, which recovered the diversity, promoted the potential beneficial bacteria, and inhabited the potential pathogenic bacteria. Overall, Magnolol may be an alternative to chemical drugs that are effective in treating E. tenella infections.
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Affiliation(s)
- Jiahao Mo
- College of Animal Science and Technology, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning, 530004, PR China
| | - Jun Xiang
- College of Animal Science and Technology, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning, 530004, PR China
| | - Jiang Li
- College of Animal Science and Technology, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning, 530004, PR China
| | - Meng Yang
- College of Animal Science and Technology, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning, 530004, PR China
| | - Zhidan Zhang
- College of Animal Science and Technology, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning, 530004, PR China
| | - Lifang Zhang
- College of Animal Science and Technology, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning, 530004, PR China
| | - Geyin Zhang
- College of Animal Science and Technology, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning, 530004, PR China
| | - Yunqiao Yang
- College of Animal Science and Technology, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning, 530004, PR China
| | - Gengsong Liu
- College of Animal Science and Technology, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning, 530004, PR China
| | - Yujie Lu
- College of Animal Science and Technology, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning, 530004, PR China
| | - Dandan Hu
- College of Animal Science and Technology, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning, 530004, PR China
| | - Hongbin Si
- College of Animal Science and Technology, Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning, 530004, PR China.
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Zhang L, Braynen J, Fahey A, Chopra K, Cifani P, Tadesse D, Regulski M, Hu F, van Dam HJJ, Xie M, Ware D, Blaby-Haas CE. Two related families of metal transferases, ZNG1 and ZNG2, are involved in acclimation to poor Zn nutrition in Arabidopsis. Front Plant Sci 2023; 14:1237722. [PMID: 37965006 PMCID: PMC10642216 DOI: 10.3389/fpls.2023.1237722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 10/02/2023] [Indexed: 11/16/2023]
Abstract
Metal homeostasis has evolved to tightly modulate the availability of metals within the cell, avoiding cytotoxic interactions due to excess and protein inactivity due to deficiency. Even in the presence of homeostatic processes, however, low bioavailability of these essential metal nutrients in soils can negatively impact crop health and yield. While research has largely focused on how plants assimilate metals, acclimation to metal-limited environments requires a suite of strategies that are not necessarily involved in metal transport across membranes. The identification of these mechanisms provides a new opportunity to improve metal-use efficiency and develop plant foodstuffs with increased concentrations of bioavailable metal nutrients. Here, we investigate the function of two distinct subfamilies of the nucleotide-dependent metallochaperones (NMCs), named ZNG1 and ZNG2, that are found in plants, using Arabidopsis thaliana as a reference organism. AtZNG1 (AT1G26520) is an ortholog of human and fungal ZNG1, and like its previously characterized eukaryotic relatives, localizes to the cytosol and physically interacts with methionine aminopeptidase type I (AtMAP1A). Analysis of AtZNG1, AtMAP1A, AtMAP2A, and AtMAP2B transgenic mutants are consistent with the role of Arabidopsis ZNG1 as a Zn transferase for AtMAP1A, as previously described in yeast and zebrafish. Structural modeling reveals a flexible cysteine-rich loop that we hypothesize enables direct transfer of Zn from AtZNG1 to AtMAP1A during GTP hydrolysis. Based on proteomics and transcriptomics, loss of this ancient and conserved mechanism has pleiotropic consequences impacting the expression of hundreds of genes, including those involved in photosynthesis and vesicle transport. Members of the plant-specific family of NMCs, ZNG2A1 (AT1G80480) and ZNG2A2 (AT1G15730), are also required during Zn deficiency, but their target protein(s) remain to be discovered. RNA-seq analyses reveal wide-ranging impacts across the cell when the genes encoding these plastid-localized NMCs are disrupted.
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Affiliation(s)
- Lifang Zhang
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, United States
| | - Janeen Braynen
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, United States
| | - Audrey Fahey
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, United States
| | - Kriti Chopra
- Computational Science Initiative, Brookhaven National Laboratory, Upton, NY, United States
| | - Paolo Cifani
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, United States
| | - Dimiru Tadesse
- Biology Department, Brookhaven National Laboratory, Upton, NY, United States
| | - Michael Regulski
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, United States
| | - Fangle Hu
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, United States
| | - Hubertus J. J. van Dam
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY, United States
| | - Meng Xie
- Biology Department, Brookhaven National Laboratory, Upton, NY, United States
| | - Doreen Ware
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, United States
- USDA ARS NAA Robert W. Holley Center for Agriculture and Health, Agricultural Research Service, Ithaca, NY, United States
| | - Crysten E. Blaby-Haas
- Department of Energy Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, United States
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA, United States
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Liang L, Ren J, Dai J, Liu J, Zhang L, Li D, Yang C, Yu J. Layered double hydroxides - poloxamer 188 nanocomposites based on exfoliation reassembling for improved cellular uptake and controlled delivery of methotrexate. Pharm Dev Technol 2023; 28:743-754. [PMID: 37577952 DOI: 10.1080/10837450.2023.2246555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Revised: 07/18/2023] [Accepted: 08/07/2023] [Indexed: 08/15/2023]
Abstract
Exploitation of advanced methotrexate (MTX) delivery with nanocomposites has important clinical application value. Poloxamer 188 micelle and layered double hydroxide loaded with MTX (LDH-MTX) by exfoliation reassembling were used to prepare LDH-MTX-poloxamer 188 nanocomposites with good dispersibility and efficient cellular uptake for controlled drug delivery. The LDH-MTX-poloxamer 188 nanocomposites with sphere-like morphology, of which the average hydrodynamic diameter was <100 nm, were shown to have better dispersion state than naked LDH-MTX. Importantly, the LDH-MTX-poloxamer 188 nanocomposites could achieve significant sustained drug release and have obvious pH dependent responsive release ability. In addition, these nanocomposites also exhibited long-term and excellent in vitro antitumor efficacy as opposed to pure MTX or LDH-MTX as evident from cell viability. More interestingly, compared to pure FITC used to simulate MTX, LDH nanocomposites labeled with FITC were considered to have better cell adhesion through cell uptake. Therefore, the studied nanocomposites of LDH-MTX-poloxamer 188 can be further used as a new advanced MTX delivery nanovehicles with desired properties in future therapeutic aspects.
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Affiliation(s)
- Liang Liang
- Analytical and Testing Center, Jiujiang University, Jiujiang, China
| | - Jin Ren
- School of Pharmacy and Life Sciences, Jiujiang University, Jiujiang, China
| | - Jun Dai
- Analytical and Testing Center, Jiujiang University, Jiujiang, China
| | - Jianyun Liu
- Key Laboratory of Jiangxi Province for the Systems Biomedicine, Jiujiang University, Jiujiang, China
| | - Lifang Zhang
- School of Pharmacy and Life Sciences, Jiujiang University, Jiujiang, China
| | - Donglin Li
- Analytical and Testing Center, Jiujiang University, Jiujiang, China
| | - Chao Yang
- Analytical and Testing Center, Jiujiang University, Jiujiang, China
| | - Jingmou Yu
- Key Laboratory of Jiangxi Province for the Systems Biomedicine, Jiujiang University, Jiujiang, China
- School of Life Sciences, Huzhou University, Huzhou, Zhejiang, China
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Wei X, Lu S, Chen B, Chen J, Zhang L, Li Y, Kong Y. Cochlear implantation programming characteristics and outcomes of cochlear nerve deficiency. Eur Arch Otorhinolaryngol 2023; 280:4409-4418. [PMID: 37036510 DOI: 10.1007/s00405-023-07949-3] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 03/29/2023] [Indexed: 04/11/2023]
Abstract
PURPOSE Due to the specificity of cochlear implantation (CI) programming parameters and outcomes in cochlear nerve deficiency (CND) patients, this study aimed to investigate the correlation between programming parameters and outcomes and further compare the difference between normal and CND groups. METHODS Ninety (95 ears) CND patients (normal cochlea, 39; malformed cochlea, 56) and seventy-nine (81 ears) normal cochlea patients who underwent CI surgery with either Med-El or Cochlear devices were included. The programming parameters and outcomes evaluated by the questionnaires were collected and compared among the normal CND, malformed CND, and normal groups in the two device groups, and their correlation was analyzed. RESULTS In the CND group, a reduced stimulation rate, higher pulse width, and triphasic pulse were needed in some cases. The stimulus levels of the CND group were significantly higher than that of the normal group (p < 0.05), but the outcomes of the CND group were significantly worse than that of the normal group (p < 0.05), and the stimulus level was significantly correlated with the outcomes (p < 0.05). However, there was no difference between normal and malformed CND groups. The non-auditory response was observed in the CND group, especially the ones with malformations. CONCLUSION The CI programming parameters of some CND patients need to be adjusted, and a slower stimulation rate and higher pulse width are required sometimes. CND patients need a higher stimulus level than normal patients but their outcomes are poorer. Non-auditory response should be noticed in CND patients during programming.
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Affiliation(s)
- Xingmei Wei
- Key Laboratory of Otolaryngology Head and Neck Surgery, Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Ministry of Education, 1, Dongjiaominxiang, Dongcheng District, Beijing, 100730, People's Republic of China
| | - Simeng Lu
- Key Laboratory of Otolaryngology Head and Neck Surgery, Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Ministry of Education, 1, Dongjiaominxiang, Dongcheng District, Beijing, 100730, People's Republic of China
| | - Biao Chen
- Key Laboratory of Otolaryngology Head and Neck Surgery, Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Ministry of Education, 1, Dongjiaominxiang, Dongcheng District, Beijing, 100730, People's Republic of China
| | - Jingyuan Chen
- Key Laboratory of Otolaryngology Head and Neck Surgery, Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Ministry of Education, 1, Dongjiaominxiang, Dongcheng District, Beijing, 100730, People's Republic of China
| | - Lifang Zhang
- Key Laboratory of Otolaryngology Head and Neck Surgery, Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Ministry of Education, 1, Dongjiaominxiang, Dongcheng District, Beijing, 100730, People's Republic of China
| | - Yongxin Li
- Key Laboratory of Otolaryngology Head and Neck Surgery, Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Ministry of Education, 1, Dongjiaominxiang, Dongcheng District, Beijing, 100730, People's Republic of China.
| | - Ying Kong
- Key Laboratory of Otolaryngology Head and Neck Surgery, Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Ministry of Education, 1, Dongjiaominxiang, Dongcheng District, Beijing, 100730, People's Republic of China.
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Tu K, Wu J, Zhao X, Zhang L, Zhang Z. Repair Strategy for Epoxy Anticorrosive Coatings on Steel Structures. Materials (Basel) 2023; 16:6257. [PMID: 37763535 PMCID: PMC10532836 DOI: 10.3390/ma16186257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 09/14/2023] [Accepted: 09/15/2023] [Indexed: 09/29/2023]
Abstract
This paper presents the results of a test of epoxy anticorrosion coating repair. Two strategies of coating repair were studied, respectively: partial repair and integral repair. The gloss loss rate, color difference and rust area rate of the repair coating were measured. The anticorrosion performance of repair coatings under different repair methods was compared. Based on the results of the coating repair test, the repair criteria for coatings were defined, and the repair strategy for epoxy anticorrosive coatings on steel structure was proposed. The results show that Marathon 500 super abrasion resistant epoxy paint (M500) and Jotamastic 90 GF low surface treatment epoxy abrasion resistant glass flake paint (J90GF) are suitable for partial repair of epoxy anticorrosive coatings on steel structures, and that Jotamastic 90 low surface treatment epoxy abrasion resistant coating (J90) and Marathon 500 super abrasion resistant epoxy paint (M500) are suitable for integral repair of epoxy anticorrosive coatings on steel structures.
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Affiliation(s)
- Kun Tu
- Department of Civil and Airport Engineering, Nanjing University of Aeronautics and Astronautics, 29 Yudao Street, Nanjing 210016, China; (K.T.)
- Jiangsu Airport Infrastructure Safety Engineering Research Center, 29 Yudao Street, Nanjing 210016, China
| | - Jin Wu
- Department of Civil and Airport Engineering, Nanjing University of Aeronautics and Astronautics, 29 Yudao Street, Nanjing 210016, China; (K.T.)
- Jiangsu Airport Infrastructure Safety Engineering Research Center, 29 Yudao Street, Nanjing 210016, China
| | - Xing Zhao
- Department of Civil and Airport Engineering, Nanjing University of Aeronautics and Astronautics, 29 Yudao Street, Nanjing 210016, China; (K.T.)
- Jiangsu Airport Infrastructure Safety Engineering Research Center, 29 Yudao Street, Nanjing 210016, China
| | - Lifang Zhang
- Department of Civil and Airport Engineering, Nanjing University of Aeronautics and Astronautics, 29 Yudao Street, Nanjing 210016, China; (K.T.)
- Jiangsu Airport Infrastructure Safety Engineering Research Center, 29 Yudao Street, Nanjing 210016, China
| | - Zehui Zhang
- Department of Civil and Airport Engineering, Nanjing University of Aeronautics and Astronautics, 29 Yudao Street, Nanjing 210016, China; (K.T.)
- Jiangsu Airport Infrastructure Safety Engineering Research Center, 29 Yudao Street, Nanjing 210016, China
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Chen X, Li Y, Li M, Xie Y, Wang K, Zhang L, Zou Z, Xiong L. Exosomal miRNAs assist in the crosstalk between tumor cells and immune cells and its potential therapeutics. Life Sci 2023; 329:121934. [PMID: 37460057 DOI: 10.1016/j.lfs.2023.121934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 07/07/2023] [Accepted: 07/10/2023] [Indexed: 07/26/2023]
Abstract
Exosomes are small extracellular vesicles that carry active substances (including proteins, lipids, and nucleic acids) and are essential for homeostasis and signal transmission. Recent studies have focused on the function of exosomal miRNAs in tumor progression. Researchers have expanded the use of exosomes and miRNAs as potential therapeutic tools and biomarkers to detect tumor progression. Immune cells, as an important part of the tumor microenvironment (TME), secrete a majority of exosome-derived miRNAs involved in the biological processes of malignancies. However, the underlying mechanisms remain unclear. Currently, there is no literature that systematically summarizes the communication of exosome-derived miRNAs between tumor cells and immune cells. Based on the cell specificity of exosome-derived miRNAs, this review provides the first comprehensive summary of the significant miRNAs from the standpoint of exosome sources, which are tumor cells and immune cells. Furthermore, we elaborated on the potential clinical applications of these miRNAs, attempting to propose existing difficulties and future possibilities in tumor diagnostics and therapy.
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Affiliation(s)
- Xinyue Chen
- Department of Pathophysiology, Medical College, Nanchang University, Nanchang 330006, China; Second Clinical Medical College, Nanchang University, Nanchang 330006, China
| | - Yuqiu Li
- Queen Mary College of Nanchang University, Nanchang 330006, China
| | - Miao Li
- Second Clinical Medical College, Nanchang University, Nanchang 330006, China
| | - Yujie Xie
- College of Pharmacy, Nanchang University, Nanchang 330006, China
| | - Keqin Wang
- First Clinical Medical College, Nanchang University, Nanchang 330006, China
| | - Lifang Zhang
- Department of Pathophysiology, Medical College, Nanchang University, Nanchang 330006, China
| | - Zhuoling Zou
- Queen Mary College of Nanchang University, Nanchang 330006, China
| | - Lixia Xiong
- Department of Pathophysiology, Medical College, Nanchang University, Nanchang 330006, China.
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Zeng Y, Luo T, Qian F, Cheng D, Chen C, Fan J, Zhang L, Zhang T, Li H, Wu Z. [Prenatal diagnosis and genetic analysis of a special case with complex structural rearrangements of chromosome 8]. Zhonghua Yi Xue Yi Chuan Xue Za Zhi 2023; 40:1181-1184. [PMID: 37643970 DOI: 10.3760/cma.j.cn511374-20220607-00392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
OBJECTIVE To present on a prenatally diagnosed case with complex structural rearrangements of chromosome 8. METHODS Chromosome karyotyping, chromosomal microarray analysis (CMA) and fluorescence in situ hybridization (FISH) were carried out for a fetus with increased nuchal thickness. RESULTS The karyotype of the amniotic fluid sample showed extra materials on 8p. FISH revealed a centromeric signal at the terminal of 8p with absence of telomeric signal. CMA revealed partial deletion of 8p23.3 [(208049_2256732)×1], partial duplication of 8p23.3p23.2 [(2259519_3016818)×3], and partial duplication of 8q [8q11.1q12.2(45951900_60989083)×3]. CONCLUSION The complex structural rearrangements of chromosome 8 in this case has differed from the commonly seen inv dup del(8p).
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Affiliation(s)
- Yan Zeng
- Prenatal Diagnosis Center, Shaoxing Women and Children's Hospital, Shaoxing, Zhejiang 312000, China.
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Cheng Q, Wang M, Liu S, Zhang L, Ji H, He Y, Li N, Qian T, Yan C, Lu J. Eliminating Concentration Polarization with Cationic Covalent Organic Polymer to Promote Effective Overpotential of Nitrogen Fixation. Angew Chem Int Ed Engl 2023; 62:e202308262. [PMID: 37442810 DOI: 10.1002/anie.202308262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/07/2023] [Accepted: 07/13/2023] [Indexed: 07/15/2023]
Abstract
Electrocatalytic nitrogen reduction reaction offers a sustainable alternative to the conventional Haber-Bosch process. However, it is currently restricted by low effective overpotential due to the concentration polarization, which arises from accumulated products, ammonium, at the reaction interface. Here, a novel covalent organic polymer with ordered periodic cationic sites is proposed to tackle this challenge. The whole network exhibits strong positive charge and effectively repels the positively charged ammonium, enabling an ultra-low interfacial product concentration, and successfully driving the reaction equilibrium to the forward direction. With the given potential unchanged, the suppressed overpotential can be much liberated, ultimately leading to a continuous high-level reaction rate. As expected, when this tailored microenvironment is coupled with a transition metal-based catalyst, a 24-fold improvement is generated in the Faradaic efficiency (73.74 %) as compared with the bare one. The proposed strategy underscores the importance of optimizing dynamic processes as a means of improving overall performance in electrochemical syntheses.
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Affiliation(s)
- Qiyang Cheng
- Collaborative Innovation Center of Suzhou Nano Science and Technology, College of Energy, Soochow University, Suzhou, 215006, China
| | - Mengfan Wang
- Collaborative Innovation Center of Suzhou Nano Science and Technology, College of Energy, Soochow University, Suzhou, 215006, China
| | - Sisi Liu
- Collaborative Innovation Center of Suzhou Nano Science and Technology, College of Energy, Soochow University, Suzhou, 215006, China
| | - Lifang Zhang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, 226019, China
| | - Haoqing Ji
- Collaborative Innovation Center of Suzhou Nano Science and Technology, College of Energy, Soochow University, Suzhou, 215006, China
| | - Yanzheng He
- Collaborative Innovation Center of Suzhou Nano Science and Technology, College of Energy, Soochow University, Suzhou, 215006, China
| | - Najun Li
- College of Chemistry, Chemical Engineering and materials science, Soochow University, Suzhou, 215006, China
| | - Tao Qian
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, 226019, China
| | - Chenglin Yan
- Collaborative Innovation Center of Suzhou Nano Science and Technology, College of Energy, Soochow University, Suzhou, 215006, China
| | - Jianmei Lu
- College of Chemistry, Chemical Engineering and materials science, Soochow University, Suzhou, 215006, China
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Luo D, Wang X, Ramamurthy G, Walker E, Zhang L, Shirke A, Naidu NG, Burda C, Shakya R, Hostnik ET, Joseph M, Ponsky L, Ponomarev V, Rosol TJ, Tweedle MF, Basilion JP. Evaluation of a photodynamic therapy agent using a canine prostate cancer model. Prostate 2023; 83:1176-1185. [PMID: 37211857 DOI: 10.1002/pros.24560] [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: 02/09/2023] [Revised: 03/30/2023] [Accepted: 05/04/2023] [Indexed: 05/23/2023]
Abstract
BACKGROUND Male dogs can develop spontaneous prostate cancer, which is similar physiologically to human disease. Recently, Tweedle and coworkers have developed an orthotopic canine prostate model allowing implanted tumors and therapeutic agents to be tested in a more translational large animal model. We used the canine model to evaluate prostate-specific membrane antigen (PSMA)-targeted gold nanoparticles as a theranostic approach for fluorescence (FL) imaging and photodynamic therapy (PDT) of early stage prostate cancer. METHODS Dogs (four in total) were immunosuppressed with a cyclosporine-based immunosuppressant regimen and their prostate glands were injected with Ace-1-hPSMA cells using transabdominal ultrasound (US) guidance. Intraprostatic tumors grew in 4-5 weeks and were monitored by ultrasound (US). When tumors reached an appropriate size, dogs were injected intravenously (iv) with PSMA-targeted nano agents (AuNPs-Pc158) and underwent surgery 24 h later to expose the prostate tumors for FL imaging and PDT. Ex vivo FL imaging and histopathological studies were performed to confirm PDT efficacy. RESULTS All dogs had tumor growth in the prostate gland as revealed by US. Twenty-four hours after injection of PSMA-targeted nano agents (AuNPs-Pc158), the tumors were imaged using a Curadel FL imaging device. While normal prostate tissue had minimal fluorescent signal, the prostate tumors had significantly increased FL. PDT was activated by irradiating specific fluorescent tumor areas with laser light (672 nm). PDT bleached the FL signal, while fluorescent signals from the other unexposed tumor tissues were unaffected. Histological analysis of tumors and adjacent prostate revealed that PDT damaged the irradiated areas to a depth of 1-2 mms with the presence of necrosis, hemorrhage, secondary inflammation, and occasional focal thrombosis. The nonirradiated areas showed no visible damages by PDT. CONCLUSION We have successfully established a PSMA-expressing canine orthotopic prostate tumor model and used the model to evaluate the PSMA-targeted nano agents (AuNPs-Pc158) in the application of FL imaging and PDT. It was demonstrated that the nano agents allowed visualization of the cancer cells and enabled their destruction when they were irradiated with a specific wavelength of light.
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Affiliation(s)
- Dong Luo
- Department of Radiology, Case Western Reserve University, Cleveland, Ohio, USA
- Department of Biomedical Science and Engineering, South China University of Technology, Guangzhou, China
| | - Xinning Wang
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio, USA
| | | | - Ethan Walker
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio, USA
| | - Lifang Zhang
- Department of Radiology, Case Western Reserve University, Cleveland, Ohio, USA
| | - Aditi Shirke
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio, USA
| | - Naraen G Naidu
- Department of Radiology, Case Western Reserve University, Cleveland, Ohio, USA
| | - Clemens Burda
- Department of Chemistry, Case Western Reserve University, Cleveland, Ohio, USA
| | - Reena Shakya
- Target Validation Shared Resource, James Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio, USA
| | - Eric T Hostnik
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine-Veterinary Medical Center, The Ohio State University, Columbus, Ohio, USA
| | - Mathew Joseph
- Interventional Cardiology Cath Core Lab, Davis Heart and Lung Research Institute, The Ohio State University, Columbus, Ohio, USA
| | - Lee Ponsky
- Department of Urology, University Hospitals, Cleveland Medical Center and Case Western Reserve University, Cleveland, Ohio, USA
| | - Vladimir Ponomarev
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York City, New York, USA
| | - Thomas J Rosol
- Department of Biomedical Sciences, Ohio University, Athens, Ohio, USA
| | - Michael F Tweedle
- Department of Radiology, The Wright Center for Innovation in Biomolecular Imaging, The Ohio State University, Columbus, Ohio, USA
| | - James P Basilion
- Department of Radiology, Case Western Reserve University, Cleveland, Ohio, USA
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio, USA
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Li Q, Luo L, Xu C, Song S, Wang Y, Zhang L, Tang Y, Texter J. Palladium Enhanced Iron Active Site - An Efficient Dual-Atom Catalyst for Oxygen Electroreduction. Small 2023; 19:e2303321. [PMID: 37211682 DOI: 10.1002/smll.202303321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 05/11/2023] [Indexed: 05/23/2023]
Abstract
Metal-nitrogen-carbon (M-C/N) electrocatalysts have been shown to have satisfactory catalytic activity and long-term durability for the oxygen reduction reaction (ORR). Here, a strategy to prepare a new electrocatalyst (Fe&Pd-C/N) using a unique metal-containing ionic liquid (IL) is exploited, in which Fe & Pd ions are positively charged species atomically dispersed by coordination to the N of the N-doped C substrate, C/N. X-ray absorption fine structure, XPS and aberration-corrected transmission electron microscopy results verified a well-defined dual-atom configuration comprising Fe+2.x -N4 coupled Pd2+ -N4 sites and well-defined spatial distribution. Electronic control of a coupled Fe-Pd structure produces an electrocatalyst that exhibits superior performance with enhanced activity and durability for the ORR compared to that of commercial Pt/C (20%, Johnson Matthey) in both alkaline and acid media. Density functional theory calculations indicate that Pd atom can enhance the catalytic activity of the Fe active sites adjacent to Pd sites by changing the electronic orbital structure and Bader charge of the Fe centers. The excellent catalytic performance of the Fe&Pd-C/N electrocatalyst is demonstrated in zinc-air batteries and hydrogen-air fuel cells.
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Affiliation(s)
- Qi Li
- Department of Materials Science, School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China
| | - Liangmei Luo
- Department of Materials Science, School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China
| | - Chenqi Xu
- Department of Materials Science, School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China
| | - Shizhu Song
- Department of Materials Science, School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China
| | - Yanqing Wang
- Department of Materials Science, School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China
| | - Lifang Zhang
- Department of Materials Science, School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China
| | - Yanfeng Tang
- Department of Materials Science, School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu, 226019, P. R. China
| | - John Texter
- Coating Research Institute, School of Engineering, Eastern Michigan University, Ypsilanti, MI, 48197, USA
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Cheng Y, Zhang L, Wang S, Wang M, Deng C, Sun Y, Yan C, Qian T. 2 A cm -2 Level Large-Scale Production of Hydrogen Enabled by Constructing Higher Capacity of Interface "Electron Pocket". ACS Nano 2023; 17:15504-15515. [PMID: 37540759 DOI: 10.1021/acsnano.3c01720] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/06/2023]
Abstract
The batch production of high-purity hydrogen is a key problem that restricts the progress of fuel cells and the blueprint for achieving carbon neutrality. Transition-metal chalcogenide heterojunctions exhibit certain activity toward electrochemical overall water splitting (EOWS), but their high-current-density catalytic performances are still unsatisfactory due to the slow kinetic progression (H* or *O → *OOH). Inspired by the "electron pocket" theory, we designed a Ni-Mo bimetallic disulfide interface heterojunction electrocatalyst system (NM-IHJ-V) with high electronic storage capacity around the Fermi level (-0.5 eV, +0.5 eV) (e-DFE), which injects more power into the kinetic progression processes of intermediate species in the EOWS process. Consequently, it achieves a superhigh current density of 2 A cm-2 level for EOWS (only 1.98 V voltage is needed), which is 11.23-fold higher than that of the benchmarked Pt/C//IrO2 (178 mA cm-2@1.98 V), as well as an excellent long-term stability of 200 h. Most strikingly, NM-IHJ-V can efficiently produce hydrogen at currents up to 5 A. Our proposed strategy of constructing catalysts to produce hydrogen at superhigh current density through the electron pocket theory will supply valuable insights for the designing other catalytic systems.
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Affiliation(s)
- Yu Cheng
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, People's Republic of China
| | - Lifang Zhang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, People's Republic of China
| | - Sai Wang
- Key Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical Industry, College of Energy, Soochow University, Suzhou 215006, People's Republic of China
- Nantong University, Nantong 226019, People's Republic of China
| | - Mengfan Wang
- Key Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical Industry, College of Energy, Soochow University, Suzhou 215006, People's Republic of China
- Nantong University, Nantong 226019, People's Republic of China
| | - Chengwei Deng
- Aerospace Hydrogen Energy Technologv (Shanghai) Co. Ltd., Shanghai 201800, People's Republic of China
- Nantong University, Nantong 226019, People's Republic of China
| | - Yi Sun
- Aerospace Hydrogen Energy Technologv (Shanghai) Co. Ltd., Shanghai 201800, People's Republic of China
- Nantong University, Nantong 226019, People's Republic of China
| | - Chenglin Yan
- Key Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical Industry, College of Energy, Soochow University, Suzhou 215006, People's Republic of China
| | - Tao Qian
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, People's Republic of China
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Li C, Lu P, Zhang L, He Y, Zhang L, Yang L, Zhang F, Kong X, Tao Q, Zhou J, Wu J, Peng T, Xie B, Jiang Y, Peng J. Apolipoprotein E Polymorphism Impacts White Matter Injury Through Microglial Phagocytosis After Experimental Subarachnoid Hemorrhage. Neuroscience 2023; 524:220-232. [PMID: 37290684 DOI: 10.1016/j.neuroscience.2023.05.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 05/19/2023] [Accepted: 05/23/2023] [Indexed: 06/10/2023]
Abstract
Apolipoprotein E (apoE, protein; APOE, gene), divided into three alleles of E2, E3 and E4 in humans, is associated with the progression of white matter lesion load. However, mechanism evidence has not been reported regarding the APOE genotype in early white matter injury (WMI) under subarachnoid hemorrhage (SAH) conditions. In the present study, we investigated the effects of APOE gene polymorphisms, by constructing microglial APOE3 and APOE4-specific overexpression, on WMI and underlying mechanisms of microglia phagocytosis in a mice model of SAH. A total of 167 male C57BL/6J mice (weight 22-26 g) were used. SAH and bleeding environment were induced by endovascular perforation in vivo and oxyHb in vitro, respectively. Multi-technology approaches, including immunohistochemistry, high throughput sequencing, gene editing for adeno-associated viruses, and several molecular biotechnologies were used to validate the effects of APOE polymorphisms on microglial phagocytosis and WMI after SAH. Our results revealed that APOE4 significantly aggravated the WMI and decreased neurobehavioral function by impairing microglial phagocytosis after SAH. Indicators negatively associated with microglial phagocytosis increased like CD16, CD86 and the ratio of CD16/CD206, while the indicators positively associated with microglial phagocytosis decreased like Arg-1 and CD206. The increased ROS and aggravating mitochondrial damage demonstrated that the damaging effects of APOE4 in SAH may be associated with microglial oxidative stress-dependent mitochondrial damage. Inhibiting mitochondrial oxidative stress by Mitoquinone (mitoQ) can enhance the phagocytic function of microglia. In conclusion, anti-oxidative stress and phagocytosis protection may serve as promising treatments in the management of SAH.
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Affiliation(s)
- Chaojie Li
- Department of Neurosurgery, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Peng Lu
- Department of Neurosurgery, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Lihan Zhang
- Department of Neurosurgery, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Yijing He
- Institute of Epigenetics and Brain Science, Southwest Medical University, Luzhou 646000, China
| | - Lifang Zhang
- Department of Neurosurgery, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, China; Sichuan Clinical Research Center for Neurosurgery, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Lei Yang
- Department of Neurosurgery, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Fan Zhang
- Department of Neurosurgery, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Xi Kong
- Institute of Epigenetics and Brain Science, Southwest Medical University, Luzhou 646000, China
| | - Qianke Tao
- Department of Neurosurgery, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Jian Zhou
- Department of Neurosurgery, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, China; Sichuan Clinical Research Center for Neurosurgery, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Jinpeng Wu
- Department of Neurosurgery, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Tangming Peng
- Department of Neurosurgery, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Bingqing Xie
- Institute of Epigenetics and Brain Science, Southwest Medical University, Luzhou 646000, China
| | - Yong Jiang
- Department of Neurosurgery, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, China; Laboratory of Neurological Diseases and Brain Function, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, China; Institute of Epigenetics and Brain Science, Southwest Medical University, Luzhou 646000, China.
| | - Jianhua Peng
- Department of Neurosurgery, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, China; Laboratory of Neurological Diseases and Brain Function, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, China; Institute of Epigenetics and Brain Science, Southwest Medical University, Luzhou 646000, China; Academician (Expert) Workstation of Sichuan Province, the Affiliated Hospital of Southwest Medical University, Luzhou 646000, China.
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46
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Ye X, Dong H, Wang Y, Chen Z, Li J, Wei Y, Zhang L. [Preparation and identification of rabbit anti-cyclin dependent kinase 6 (CDK6) antibodies]. Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi 2023; 39:742-747. [PMID: 37515341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/30/2023]
Abstract
Objective To prepare and identify rabbit anti-cyclin dependent kinase 6 (CDK6) antibody. Methods The recombinant pET21a (+)/CDK6 was successfully constructed, then the recombinant plasmid was transformed into E.coli BL21 (DE3) competent cells and was induced by isopropyl-β-D-thiogalactopyranoside (IPTG) for protein expression, which was detected by SDS-PAGE and Western blot analysis. The expressed protein was purified by nickel-chelating nitrilotriacetic acid (Ni-NTA) agarose and then analyzed by SDS-PAGE. Japanese white rabbits were immunized with purified CDK6 protein for many times every two weeks. The blood was collected at 0, 2, 4 and 6 weeks after immunization, and serum was separated from blood. The titer was detected by indirect ELISA. Western blot analysis, immunofluorescence assay and immunohistochemistry were employed to determine the specificity. Results High purity CDK6 protein and high specificity of rabbit anti-CDK6 antibody were successfully prepared. The titer of CDK6 rabbit serum antibody reached 1:30 000 after immunization, which could specifically recognize the CDK6 protein expressed in cervical cancer cell line and cervical cancer tissues. Conclusion The high titer and specificity of rabbit anti-CDK6 antibody is successfully prepared.
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Affiliation(s)
- Xiaoxian Ye
- Department of Anatomy, School of Basic Medicine, Wenzhou Medical University Renji College, Wenzhou 325035, China
| | - Haiyan Dong
- Institute of Molecular Viruses and Immunology, Wenzhou Medical University Renji College, Wenzhou 325035, China
| | - Yu Wang
- Department of Anatomy, School of Basic Medicine, Wenzhou Medical University Renji College, Wenzhou 325035, China
| | - Zhengzhen Chen
- Department of Anatomy, School of Basic Medicine, Wenzhou Medical University Renji College, Wenzhou 325035, China
| | - Junwei Li
- Department of Anatomy, School of Basic Medicine, Wenzhou Medical University Renji College, Wenzhou 325035, China
| | - Yubing Wei
- Department of Anatomy, School of Basic Medicine, Wenzhou Medical University Renji College, Wenzhou 325035, China
| | - Lifang Zhang
- Institute of Molecular Viruses and Immunology, Wenzhou Medical University Renji College, Wenzhou 325035, China. *Corresponding author, E-mail:
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Zhang L, Li C, He Y, Kuang C, Qiu X, Gu L, Wu J, Pang J, Zhang L, Xie B, Peng J, Yin S, Jiang Y. TRPM4 Drives Cerebral Edema by Switching to Alternative Splicing Isoform After Experimental Traumatic Brain Injury. J Neurotrauma 2023; 40:1779-1795. [PMID: 37078148 DOI: 10.1089/neu.2022.0503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/21/2023] Open
Abstract
Traumatic brain injury (TBI) affects persons of all ages and is recognized as a major cause of death and disability worldwide; it also brings heavy life burden to patients and their families. The treatment of those with secondary injury after TBI is still scarce, however. Alternative splicing (AS) is a crucial post-transcriptional regulatory mechanism associated with various physiological processes, while the contribution of AS in treatment after TBI is poorly illuminated. In this study, we performed and analyzed the transcriptome and proteome datasets of brain tissue at multiple time points in a controlled cortical impact (CCI) mouse model. We found that AS, as an independent change against the transcriptional level, is a novel mechanism linked to cerebral edema after TBI. Bioinformatics analysis further indicated that the transformation of splicing isoforms after TBI was related to cerebral edema. Accordingly, we found that the fourth exon of transient receptor potential channel melastatin 4 (Trpm4) abrogated skipping at 72 h after TBI, resulting in a frameshift of the encoded amino acid and an increase in the proportion of spliced isoforms. Using magnetic resonance imaging (MRI), we have shown the numbers of 3nEx isoforms of Trpm4 may be positively correlated with volume of cerebral edema. Thus alternative splicing of Trpm4 becomes a noteworthy mechanism of potential influence on edema. In summary, alternative splicing of Trpm4 may drive cerebral edema after TBI. Trpm4 is a potential therapeutic targeting cerebral edema in patients with TBI.
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Affiliation(s)
- Lihan Zhang
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Chaojie Li
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Yijing He
- Department of Laboratory of Neurological Diseases and Brain Function, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Institute of Epigenetics and Brain Science, Southwest Medical University, Luzhou, China
- Department of Academician (Expert) Workstation of Sichuan Province, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Chenghao Kuang
- Department of Laboratory of Neurological Diseases and Brain Function, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Institute of Epigenetics and Brain Science, Southwest Medical University, Luzhou, China
| | - Xiancheng Qiu
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Long Gu
- Department of Laboratory of Neurological Diseases and Brain Function, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Jinpeng Wu
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Jinwei Pang
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Department of Laboratory of Neurological Diseases and Brain Function, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Institute of Epigenetics and Brain Science, Southwest Medical University, Luzhou, China
| | - Lifang Zhang
- Department of Sichuan Clinical Research Center for Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Bingqing Xie
- Institute of Epigenetics and Brain Science, Southwest Medical University, Luzhou, China
| | - Jianhua Peng
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Department of Laboratory of Neurological Diseases and Brain Function, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Institute of Epigenetics and Brain Science, Southwest Medical University, Luzhou, China
| | - Shigang Yin
- Department of Laboratory of Neurological Diseases and Brain Function, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Institute of Epigenetics and Brain Science, Southwest Medical University, Luzhou, China
- Department of Academician (Expert) Workstation of Sichuan Province, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Yong Jiang
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Department of Laboratory of Neurological Diseases and Brain Function, The Affiliated Hospital of Southwest Medical University, Luzhou, China
- Institute of Epigenetics and Brain Science, Southwest Medical University, Luzhou, China
- Department of Sichuan Clinical Research Center for Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China
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Wei N, Shang L, Liu J, Wang M, Liu Y, Zhu C, Fei C, Zhang L, Yang F, Gu F. Engineered Staphylococcus auricularis Cas9 with high-fidelity. FASEB J 2023; 37:e23060. [PMID: 37389931 DOI: 10.1096/fj.202202132rr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 06/03/2023] [Accepted: 06/13/2023] [Indexed: 07/01/2023]
Abstract
CRISPR-Cas9 is a versatile gene editing tool with a broad application of basic research and clinical therapeutics. However, the potential impact caused by off-target effects remains a critical bottleneck. The small Cas9 ortholog from Staphylococcus auricularis (SauriCas9) was identified, which recognizes a 5'-NNGG-3' protospacer adjacent motif (PAM), exhibiting high activity for genome editing. Recently, we also reported enhanced-fidelity Staphylococcus aureus Cas9 (efSaCas9), which harbors a single mutation N260D. Protein sequence alignment revealed that SauriCas9 has 62.4% sequence identity with SaCas9. Because SauriCas9 is more flexible in recognizing the target sequence with PAM of 5'-NNGG-3' than SaCas9 of 5'-NNGRRT-3' PAM, we sought to test whether key mutation(N260D) or adjacent residue mutation in efSaCas9 can be appliable to SauriCas9. With this concept, two engineered SauriCas9 variants (SauriCas9-HF1, harboring the N269D mutation; SauriCas9-HF2, harboring the D270N mutation) dramatically improved targeting specificity by targeted deep sequencing and GUIDE-seq. At certain sites, reduced off-target effects (approximately 61.6- and 111.9-fold improvements) of SauriCas9-HF2 compared with wild-type SauriCas9 were observed. Overall, two identified SauriCas9 variants (SauriCas9-HF1 and SauriCas9-HF2) expand the utility of the CRISPR toolkit for research and therapeutic applications.
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Affiliation(s)
- Nan Wei
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai, China
| | - Lu Shang
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai, China
| | - Jing Liu
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai, China
| | - Mi Wang
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai, China
| | - Yingchun Liu
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai, China
| | - Chuangang Zhu
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
| | - Chenzhong Fei
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai, China
| | - Lifang Zhang
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai, China
| | - Fayu Yang
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai, China
| | - Feng Gu
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
- Key Laboratory of Veterinary Chemical Drugs and Pharmaceutics, Ministry of Agriculture and Rural Affairs, Shanghai, China
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Zhang L, Yang T, Wang Z, Zhang F, Li N, Jiang W. Genome-Wide Identification and Expression Analysis of the PLATZ Transcription Factor in Tomato. Plants (Basel) 2023; 12:2632. [PMID: 37514247 PMCID: PMC10384190 DOI: 10.3390/plants12142632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 07/07/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023]
Abstract
The PLATZ (plant AT protein and zinc-binding protein) transcription factor family is involved in the regulation of plant growth and development and plant stress response. In this study, 24 SlPLATZs were identified from the cultivated tomato genome and classified into four groups based on the similarity of conserved patterns among members of the same subfamily. Fragment duplication was an important way to expand the SlPLATZ gene family in tomatoes, and the sequential order of tomato PLATZ genes in the evolution of monocotyledonous and dicotyledonous plants and the roles they played were hypothesized. Expression profiles based on quantitative real-time reverse transcription PCR showed that SlPLATZ was involved in the growth of different tissues in tomatoes. SlPLATZ21 acts mainly in the leaves. SlPLATZ9, SlPLATZ21, and SlPLATZ23 were primarily involved in the red ripening, expanding, and mature green periods of fruit, respectively. In addition, SlPLATZ1 was found to play an important role in salt stress. This study will lay the foundation for the analysis of the biological functions of SlPLATZ genes and will also provide a theoretical basis for the selection and breeding of new tomato varieties and germplasm innovation.
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Affiliation(s)
- Lifang Zhang
- College of Horticulture, Xinjiang Agricultural University, Urumqi 830052, China
| | - Tao Yang
- Key Laboratory of Genome Research and Genetic Improvement of Xinjiang Characteristic Fruits and Vegetables, Institute of Horticultural Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
| | - Zepeng Wang
- College of Horticulture, Xinjiang Agricultural University, Urumqi 830052, China
- Key Laboratory of Genome Research and Genetic Improvement of Xinjiang Characteristic Fruits and Vegetables, Institute of Horticultural Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
| | - Fulin Zhang
- College of Horticulture, Xinjiang Agricultural University, Urumqi 830052, China
- Key Laboratory of Genome Research and Genetic Improvement of Xinjiang Characteristic Fruits and Vegetables, Institute of Horticultural Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
| | - Ning Li
- Key Laboratory of Genome Research and Genetic Improvement of Xinjiang Characteristic Fruits and Vegetables, Institute of Horticultural Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
| | - Weijie Jiang
- College of Horticulture, Xinjiang Agricultural University, Urumqi 830052, China
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
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50
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Gu RQ, Qiu JY, Zheng CY, Wu JM, Nie ZJ, Zhang LF, Chen Z, Wang X, Hu Z, Song YX, Zhang DD, Shan WP, Cao X, Tian YX, Shao L, Tian Y, Pan XB, Wang ZW. [Long-term mortality risk of valvular heart disease adults over 35 years old in Chinese communities]. Zhonghua Yi Xue Za Zhi 2023; 103:1818-1823. [PMID: 37357186 DOI: 10.3760/cma.j.cn112137-20221118-02430] [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] [Subscribe] [Scholar Register] [Indexed: 06/27/2023]
Abstract
Objective: To investigate the risk and influencing factors of long-term mortality of valvular heart disease (VHD) adults aged 35 years and over in Chinese communities. Methods: A cohort study was carried out. The data of the subjects who underwent echocardiography were collected from the Chinese Hypertension Survey between 2012 and 2015 and survival outcomes were followed up between 2018 and 2019. Kaplan-Meier survival curves were plotted and compared using log-rank test. Cox proportional hazards models were used to analyze the influence of VHD on mortality. Results: During an average follow-up time of (4.6±0.9) years, a total of 23 237 participants (10 881 males and 12 356 females) were pooled into the final analysis from 5 eastern, 5 central, and 4 western provinces, cities and autonomous regions in China, with a mean age of (56.9±13.2) years. Among the included participants, 1 004 had VHD (467 males and 537 females), with a mean age was of (68.1±12.6) years. In the Kaplan-Meier analysis, participants with VHD had a significantly increased risk of all-cause mortality (log-rank χ2=351.82, P<0.001) and cardiovascular mortality (log-rank χ2=284.14, P<0.001) compared with those without VHD. Multivariate Cox regression analysis showed that compared with those without VHD, the participants with rheumatic VHD had a 45% increased risk of all-cause mortality (HR=1.45, 95%CI: 1.12-1.89) and degenerative VHD increased the risk of cardiovascular mortality by 69% (HR=1.69, 95%CI: 1.19-2.38). The risk factors of cardiovascular mortality for VHD were age 55 years and over (55-<75 years: HR=4.93, 95%CI: 1.17-20.85;≥75 years: HR=11.92, 95%CI: 2.85-49.80) and diabetes mellitus (HR=1.71, 95%CI: 1.00-2.93). Conclusions: VHD is a risk factor of all-cause mortality and cardiovascular mortality among adults aged 35 years and over. Age 55 years and over and diabetes mellitus are adverse prognostic factors for patients with VHD.
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Affiliation(s)
- R Q Gu
- Division of Prevention and Community Health, National Center for Cardiovascular Disease, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 102308, China
| | - J Y Qiu
- School of Public Health, Medical College of Soochow University, Suzhou 215006, China
| | - C Y Zheng
- Division of Prevention and Community Health, National Center for Cardiovascular Disease, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 102308, China
| | - J M Wu
- School of Management, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Z J Nie
- School of Public Health, Medical College of Soochow University, Suzhou 215006, China
| | - L F Zhang
- Division of Prevention and Community Health, National Center for Cardiovascular Disease, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 102308, China
| | - Z Chen
- Division of Prevention and Community Health, National Center for Cardiovascular Disease, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 102308, China
| | - X Wang
- Division of Prevention and Community Health, National Center for Cardiovascular Disease, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 102308, China
| | - Z Hu
- Division of Prevention and Community Health, National Center for Cardiovascular Disease, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 102308, China
| | - Y X Song
- Division of Prevention and Community Health, National Center for Cardiovascular Disease, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 102308, China
| | - D D Zhang
- School of Public Health, Medical College of Soochow University, Suzhou 215006, China
| | - W P Shan
- School of Public Health, Medical College of Soochow University, Suzhou 215006, China
| | - X Cao
- Division of Prevention and Community Health, National Center for Cardiovascular Disease, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 102308, China
| | - Y X Tian
- Division of Prevention and Community Health, National Center for Cardiovascular Disease, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 102308, China
| | - L Shao
- Division of Prevention and Community Health, National Center for Cardiovascular Disease, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 102308, China
| | - Y Tian
- Division of Prevention and Community Health, National Center for Cardiovascular Disease, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 102308, China
| | - X B Pan
- Department of Structural Heart Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences, Beijing 100037, China
| | - Z W Wang
- Division of Prevention and Community Health, National Center for Cardiovascular Disease, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 102308, China
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