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Duan M, Tong C, Huang C, Tong Z, Xu J, Li D, Pang J, Zhi Z, Wu C. Enhanced stabilization of multifunctional phenolic acids-grafted chitin nanofibers for Pickering emulsions. Food Chem 2024; 440:138278. [PMID: 38157704 DOI: 10.1016/j.foodchem.2023.138278] [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: 08/22/2023] [Revised: 12/17/2023] [Accepted: 12/23/2023] [Indexed: 01/03/2024]
Abstract
The objective of this study was to develop novel functional stabilizers for Pickering emulsions using phenolic acids-grafted chitin nanofibers (phenolic acids-g-ChNF), which were fabricated by grafting ferulic acid (FA), sinapic acid (SA) and caffeic acid (CA) onto ChNF via free radical-mediated method. The Fourier transform infrared spectrum and Proton nuclear magnetic resonance showed that graft copolymerization occurred between the amino groups of ChNF and the carbonyl of the phenolic acids. Further, it was revealed that CA-g-ChNF and SA-g-ChNF possessed stronger antioxidant and antibacterial properties than the original ChNF and FA-g-ChNF. Additionally, we applied phenolic acids-g-ChNF to develop Pickering emulsions and found that SA-g-ChNF- and CA-g-ChNF-stabilized emulsions displayed reduced droplet sizes compared to FA, the main reason for which was that SA and CA had a rather close bonding relationship with ChNF. Taken together, SA-g-ChNF and CA-g-ChNF as novel multi-functional particles can be employed for facilitating the stability of Pickering emulsions.
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Affiliation(s)
- Mengxia Duan
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Cailing Tong
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Chen Huang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Zhisheng Tong
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Jingting Xu
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Danjie Li
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Jie Pang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Engineering Research Centre of Fujian-Taiwan Special Marine Food Processing and Nutrition, Ministry of Education, Fuzhou, Fujian 350002, China
| | - Zijian Zhi
- Food Structure and Function (FSF) Research Group, Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, Gent, East Flanders 9000, Belgium.
| | - Chunhua Wu
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Engineering Research Centre of Fujian-Taiwan Special Marine Food Processing and Nutrition, Ministry of Education, Fuzhou, Fujian 350002, China.
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Zou M, Bhatia A, Dong H, Jayaprakash P, Guo J, Sahu D, Hou Y, Tsen F, Tong C, O'Brien K, Situ AJ, Schmidt T, Chen M, Ying Q, Ulmer TS, Woodley DT, Li W. Correction: Evolutionarily conserved dual lysine motif determines the non-chaperone function of secreted Hsp90alpha in tumour progression. Oncogene 2024; 43:1397-1398. [PMID: 38575761 PMCID: PMC11065679 DOI: 10.1038/s41388-024-03017-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Affiliation(s)
- M Zou
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
- Department of Endocrinology and Metabolism, and Department of Respiratory and Critical Care Medicine, Chronic Airways Diseases Laboratory, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - A Bhatia
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - H Dong
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
- Department of Endocrinology and Metabolism, and Department of Respiratory and Critical Care Medicine, Chronic Airways Diseases Laboratory, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - P Jayaprakash
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - J Guo
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - D Sahu
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - Y Hou
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - F Tsen
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - C Tong
- Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research and Department of Cell and Neurobiology, Los Angeles, CA, USA
| | - K O'Brien
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - A J Situ
- Department of Biochemistry and Molecular Biology and Zilkha Neurogenetic Institute University of Southern California Keck Medical Center, Los Angeles, CA, USA
| | - T Schmidt
- Department of Biochemistry and Molecular Biology and Zilkha Neurogenetic Institute University of Southern California Keck Medical Center, Los Angeles, CA, USA
| | - M Chen
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
- Department of Medical Research, Greater Los Angeles Veterans Affairs Heath Care System, Los Angeles, CA, USA
| | - Q Ying
- Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research and Department of Cell and Neurobiology, Los Angeles, CA, USA
| | - T S Ulmer
- Department of Biochemistry and Molecular Biology and Zilkha Neurogenetic Institute University of Southern California Keck Medical Center, Los Angeles, CA, USA
| | - D T Woodley
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
- Department of Medical Research, Greater Los Angeles Veterans Affairs Heath Care System, Los Angeles, CA, USA
| | - W Li
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA.
- Department of Medical Research, Greater Los Angeles Veterans Affairs Heath Care System, Los Angeles, CA, USA.
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Wang L, Liu S, Li K, Ma A, Hu C, Wang C, Cao N, Zhao Y, Fu R, Jia W, Xiang P, Liu H, Qi Z, Zhu N, Liang L, Wang L, Cao J, Zhai P, Zhou J, Wei J, Na T, Wu J, He Z, Zhou G, Yu W, Wu J, Zeng W, Zhang Y, Zhu L, Fu B, Zhang J, Yang S, Dai C, Cui H, Jing J, Yan H, He X, Lu Y, Tong C, Zhao T, Hao J, Liu X, Jin Y, Wang Y. General requirements for the production of extracellular vesicles derived from human stem cells. Cell Prolif 2024; 57:e13554. [PMID: 37767639 PMCID: PMC10905342 DOI: 10.1111/cpr.13554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 09/18/2023] [Indexed: 09/29/2023] Open
Abstract
'General requirements for the production of extracellular vesicles derived from human stem cells' is the first guideline for stem cells derived extracellular vesicles in China, jointly drafted and agreed upon by experts from the Chinese Society for Stem Cell Research. This standard specifies the general requirements, process requirements, packaging and labelling requirements and storage requirements for preparing extracellular vesicles derived from human stem cells, which is applicable to the research and production of extracellular vesicles derived from stem cells. It was originally released by the China Society for Cell Biology on 30 August 2022. We hope that the publication of this guideline will promote institutional establishment, acceptance and execution of proper protocols, and accelerate the international standardisation of extracellular vesicles derived from human stem cells.
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Affiliation(s)
- Ling Wang
- Department of Stem Cells and Regenerative MedicineCenter for Translational Medicine, Naval Medical UniversityShanghaiChina
- Shanghai Key Laboratory of Cell EngineeringNaval Medical UniversityShanghaiChina
| | - Shiyu Liu
- State Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Key Laboratory of Stomatology, Department of ProsthodonticsSchool of Stomatology, The Fourth Military Medical UniversityShaanxiChina
| | - Ka Li
- Institute of Clinical ScienceZhongshan Hospital, Fudan UniversityShanghaiChina
| | - Aijin Ma
- Beijing Technology and Business UniversityBeijingChina
- Chinese Society for Stem Cell ResearchShanghaiChina
| | - Chenghu Hu
- Xi'an Key Laboratory of Stem Cell and Regenerative MedicineInstitute of Medical Research, Northwestern Polytechnical UniversityShaanxiChina
| | | | - Nan Cao
- Chinese Society for Stem Cell ResearchShanghaiChina
- Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of EducationSun Yat‐Sen UniversityGuangzhouChina
| | - Yunpeng Zhao
- Department of Stem Cells and Regenerative MedicineCenter for Translational Medicine, Naval Medical UniversityShanghaiChina
- Shanghai Key Laboratory of Cell EngineeringNaval Medical UniversityShanghaiChina
| | - Ruifeng Fu
- Department of Stem Cells and Regenerative MedicineCenter for Translational Medicine, Naval Medical UniversityShanghaiChina
- Shanghai Key Laboratory of Cell EngineeringNaval Medical UniversityShanghaiChina
| | - Wenwen Jia
- National Stem Cell Resource Transformation BankShanghaiChina
- Shanghai Institute of Stem Cell Research and Clinical TranslationShanghaiChina
| | - Peng Xiang
- Chinese Society for Stem Cell ResearchShanghaiChina
- Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of EducationSun Yat‐Sen UniversityGuangzhouChina
| | - Houqi Liu
- Haimenshengyuan Stem Cell Technology Co. Ltd.NantongChina
| | | | | | - Lingmin Liang
- Chinese Society for Stem Cell ResearchShanghaiChina
- National Stem Cell Resource Center, State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Institute for Stem Cell and Regeneration, University of Chinese Academy of SciencesBeijingChina
- Beijing Institute for Stem Cell and Regenerative MedicineBeijingChina
| | - Lei Wang
- Chinese Society for Stem Cell ResearchShanghaiChina
- National Stem Cell Resource Center, State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Institute for Stem Cell and Regeneration, University of Chinese Academy of SciencesBeijingChina
- Beijing Institute for Stem Cell and Regenerative MedicineBeijingChina
| | - Jiani Cao
- Chinese Society for Stem Cell ResearchShanghaiChina
- National Stem Cell Resource Center, State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Institute for Stem Cell and Regeneration, University of Chinese Academy of SciencesBeijingChina
- Beijing Institute for Stem Cell and Regenerative MedicineBeijingChina
| | - Peijun Zhai
- China National Accreditation Center for Conformity AssessmentBeijingChina
| | - Jiaxi Zhou
- Chinese Society for Stem Cell ResearchShanghaiChina
- Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical CollegeTianjinChina
| | - Jun Wei
- Chinese Society for Stem Cell ResearchShanghaiChina
- Zephyrm Biotechnologies Co. Ltd.BeijingChina
| | - Tao Na
- China Institute for Food and Drug ControlBeijingChina
| | - Jun Wu
- National Stem Cell Resource Center, State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Institute for Stem Cell and Regeneration, University of Chinese Academy of SciencesBeijingChina
- Beijing Institute for Stem Cell and Regenerative MedicineBeijingChina
| | - Zhiying He
- Institute for Regenerative Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China; Shanghai Engineering Research Center of Stem Cells Translational MedicineShanghaiChina
| | | | - Weifeng Yu
- Shanghai Jiaotong UniversityShanghaiChina
| | | | - Wen Zeng
- Army Military Medical UniversityChongqingChina
| | - Yong Zhang
- Chinese Society for Stem Cell ResearchShanghaiChina
- National Clinical Research Center of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical UniversityGuangzhouChina
- HHLIFE Company Inc.ShenzhenChina
| | - Lijun Zhu
- Institute of Scientific and Technical Information of ChinaBeijingChina
| | - Boqiang Fu
- Chinese Society for Stem Cell ResearchShanghaiChina
- National Institute of MetrologyBeijingChina
| | - Jingzhong Zhang
- Suzhou Institute of Biomedical Engineering TechnologyChinese Academy of SciencesSuzhouChina
| | - Shuwei Yang
- Guangzhou Funeng Gene Co. Ltd.GuangzhouChina
| | | | - Hengmi Cui
- Jiangsu Innovation Institute For BiomedicineNanjingChina
| | | | - Hexin Yan
- Shanghai Celevik Biotechnology Co. Ltd.ShanghaiChina
| | | | - Yongbo Lu
- Guangdong Boxi Biotechnology Co. Ltd.DongguanChina
| | - Cailing Tong
- Biotechcomer (Xiamen) Technology Co. Ltd.XiamenChina
| | - Tongbiao Zhao
- Chinese Society for Stem Cell ResearchShanghaiChina
- National Stem Cell Resource Center, State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Institute for Stem Cell and Regeneration, University of Chinese Academy of SciencesBeijingChina
- Beijing Institute for Stem Cell and Regenerative MedicineBeijingChina
| | - Jie Hao
- Chinese Society for Stem Cell ResearchShanghaiChina
- National Stem Cell Resource Center, State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Institute for Stem Cell and Regeneration, University of Chinese Academy of SciencesBeijingChina
- Beijing Institute for Stem Cell and Regenerative MedicineBeijingChina
| | - Xialin Liu
- State Key Laboratory of Ophthalmology, Zhongshan ophthalmic CenterSun Yat‐sen UniversityGuangzhouChina
| | - Yan Jin
- State Key Laboratory of Oral and Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Key Laboratory of Stomatology, Department of ProsthodonticsSchool of Stomatology, The Fourth Military Medical UniversityShaanxiChina
| | - Yue Wang
- Department of Stem Cells and Regenerative MedicineCenter for Translational Medicine, Naval Medical UniversityShanghaiChina
- Shanghai Key Laboratory of Cell EngineeringNaval Medical UniversityShanghaiChina
- Shanghai Institute of Stem Cell Research and Clinical TranslationShanghaiChina
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Zhang Y, Tong C, Chen Y, Xia X, Jiang S, Qiu C, Pang J. Advances in the construction and application of konjac glucomannan-based delivery systems. Int J Biol Macromol 2024; 262:129940. [PMID: 38320637 DOI: 10.1016/j.ijbiomac.2024.129940] [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: 12/30/2023] [Revised: 01/26/2024] [Accepted: 02/01/2024] [Indexed: 02/08/2024]
Abstract
Konjac glucomannan (KGM) has been widely used to deliver bioactive components due to its naturalness, non-toxicity, excellent biodegradability, biocompatibility, and other characteristics. This review presents an overview of konjac glucomannan as a matrix, and the types of konjac glucomannan-based delivery systems (such as hydrogels, food packaging films, microencapsulation, emulsions, nanomicelles) and their construction methods are introduced in detail. Furthermore, taking polyphenol compounds, probiotics, flavor substances, fatty acids, and other components as representatives, the applied research progress of konjac glucomannan-based delivery systems in food are summarized. Finally, the prospects for research directions in konjac glucomannan-based delivery systems are examined, thereby providing a theoretical basis for expanding the application of konjac glucomannan in other industries, such as food and medicine.
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Affiliation(s)
- Yanting Zhang
- College of Food Science, Fujian Agriculture and Forestry University, 350000, China
| | - Cailing Tong
- College of Food Science, Fujian Agriculture and Forestry University, 350000, China
| | - Yuanyuan Chen
- College of Food Science, Fujian Agriculture and Forestry University, 350000, China
| | - Xiaolu Xia
- College of Food Science, Fujian Agriculture and Forestry University, 350000, China
| | - Shizhong Jiang
- College of Food Science, Fujian Agriculture and Forestry University, 350000, China
| | - Chao Qiu
- School of Food Science and Technology, Jiangnan University, 214122, China.
| | - Jie Pang
- College of Food Science, Fujian Agriculture and Forestry University, 350000, China.
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5
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Zhou Z, Tong C, Tian L, Zhang X, Li Y, Xiao Y, Yan L. Retraction Note: Retrospective study of preservation and transection of the round ligament of uterus during laparoscopic transabdominal preperitoneal inguinal hernia repair in adult women. Hernia 2023; 27:1627. [PMID: 37792104 DOI: 10.1007/s10029-023-02906-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Affiliation(s)
- Z Zhou
- Department of General Surgery, Shaanxi Provincial People's Hospital, Xi'an, 710068, China
- Yan'an University, Yan'an, China
| | - C Tong
- Department of General Surgery, Shaanxi Provincial People's Hospital, Xi'an, 710068, China
| | - L Tian
- Department of General Surgery, Shaanxi Provincial People's Hospital, Xi'an, 710068, China
| | - X Zhang
- Department of General Surgery, Shaanxi Provincial People's Hospital, Xi'an, 710068, China
| | - Y Li
- Department of General Surgery, Shaanxi Provincial People's Hospital, Xi'an, 710068, China
| | - Y Xiao
- Department of General Surgery, Shaanxi Provincial People's Hospital, Xi'an, 710068, China
| | - L Yan
- Department of General Surgery, Shaanxi Provincial People's Hospital, Xi'an, 710068, China.
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6
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Raman B, McCracken C, Cassar MP, Moss AJ, Finnigan L, Samat AHA, Ogbole G, Tunnicliffe EM, Alfaro-Almagro F, Menke R, Xie C, Gleeson F, Lukaschuk E, Lamlum H, McGlynn K, Popescu IA, Sanders ZB, Saunders LC, Piechnik SK, Ferreira VM, Nikolaidou C, Rahman NM, Ho LP, Harris VC, Shikotra A, Singapuri A, Pfeffer P, Manisty C, Kon OM, Beggs M, O'Regan DP, Fuld J, Weir-McCall JR, Parekh D, Steeds R, Poinasamy K, Cuthbertson DJ, Kemp GJ, Semple MG, Horsley A, Miller CA, O'Brien C, Shah AM, Chiribiri A, Leavy OC, Richardson M, Elneima O, McAuley HJC, Sereno M, Saunders RM, Houchen-Wolloff L, Greening NJ, Bolton CE, Brown JS, Choudhury G, Diar Bakerly N, Easom N, Echevarria C, Marks M, Hurst JR, Jones MG, Wootton DG, Chalder T, Davies MJ, De Soyza A, Geddes JR, Greenhalf W, Howard LS, Jacob J, Man WDC, Openshaw PJM, Porter JC, Rowland MJ, Scott JT, Singh SJ, Thomas DC, Toshner M, Lewis KE, Heaney LG, Harrison EM, Kerr S, Docherty AB, Lone NI, Quint J, Sheikh A, Zheng B, Jenkins RG, Cox E, Francis S, Halling-Brown M, Chalmers JD, Greenwood JP, Plein S, Hughes PJC, Thompson AAR, Rowland-Jones SL, Wild JM, Kelly M, Treibel TA, Bandula S, Aul R, Miller K, Jezzard P, Smith S, Nichols TE, McCann GP, Evans RA, Wain LV, Brightling CE, Neubauer S, Baillie JK, Shaw A, Hairsine B, Kurasz C, Henson H, Armstrong L, Shenton L, Dobson H, Dell A, Lucey A, Price A, Storrie A, Pennington C, Price C, Mallison G, Willis G, Nassa H, Haworth J, Hoare M, Hawkings N, Fairbairn S, Young S, Walker S, Jarrold I, Sanderson A, David C, Chong-James K, Zongo O, James WY, Martineau A, King B, Armour C, McAulay D, Major E, McGinness J, McGarvey L, Magee N, Stone R, Drain S, Craig T, Bolger A, Haggar A, Lloyd A, Subbe C, Menzies D, Southern D, McIvor E, Roberts K, Manley R, Whitehead V, Saxon W, Bularga A, Mills NL, El-Taweel H, Dawson J, Robinson L, Saralaya D, Regan K, Storton K, Brear L, Amoils S, Bermperi A, Elmer A, Ribeiro C, Cruz I, Taylor J, Worsley J, Dempsey K, Watson L, Jose S, Marciniak S, Parkes M, McQueen A, Oliver C, Williams J, Paradowski K, Broad L, Knibbs L, Haynes M, Sabit R, Milligan L, Sampson C, Hancock A, Evenden C, Lynch C, Hancock K, Roche L, Rees M, Stroud N, Thomas-Woods T, Heller S, Robertson E, Young B, Wassall H, Babores M, Holland M, Keenan N, Shashaa S, Price C, Beranova E, Ramos H, Weston H, Deery J, Austin L, Solly R, Turney S, Cosier T, Hazelton T, Ralser M, Wilson A, Pearce L, Pugmire S, Stoker W, McCormick W, Dewar A, Arbane G, Kaltsakas G, Kerslake H, Rossdale J, Bisnauthsing K, Aguilar Jimenez LA, Martinez LM, Ostermann M, Magtoto MM, Hart N, Marino P, Betts S, Solano TS, Arias AM, Prabhu A, Reed A, Wrey Brown C, Griffin D, Bevan E, Martin J, Owen J, Alvarez Corral M, Williams N, Payne S, Storrar W, Layton A, Lawson C, Mills C, Featherstone J, Stephenson L, Burdett T, Ellis Y, Richards A, Wright C, Sykes DL, Brindle K, Drury K, Holdsworth L, Crooks MG, Atkin P, Flockton R, Thackray-Nocera S, Mohamed A, Taylor A, Perkins E, Ross G, McGuinness H, Tench H, Phipps J, Loosley R, Wolf-Roberts R, Coetzee S, Omar Z, Ross A, Card B, Carr C, King C, Wood C, Copeland D, Calvelo E, Chilvers ER, Russell E, Gordon H, Nunag JL, Schronce J, March K, Samuel K, Burden L, Evison L, McLeavey L, Orriss-Dib L, Tarusan L, Mariveles M, Roy M, Mohamed N, Simpson N, Yasmin N, Cullinan P, Daly P, Haq S, Moriera S, Fayzan T, Munawar U, Nwanguma U, Lingford-Hughes A, Altmann D, Johnston D, Mitchell J, Valabhji J, Price L, Molyneaux PL, Thwaites RS, Walsh S, Frankel A, Lightstone L, Wilkins M, Willicombe M, McAdoo S, Touyz R, Guerdette AM, Warwick K, Hewitt M, Reddy R, White S, McMahon A, Hoare A, Knighton A, Ramos A, Te A, Jolley CJ, Speranza F, Assefa-Kebede H, Peralta I, Breeze J, Shevket K, Powell N, Adeyemi O, Dulawan P, Adrego R, Byrne S, Patale S, Hayday A, Malim M, Pariante C, Sharpe C, Whitney J, Bramham K, Ismail K, Wessely S, Nicholson T, Ashworth A, Humphries A, Tan AL, Whittam B, Coupland C, Favager C, Peckham D, Wade E, Saalmink G, Clarke J, Glossop J, Murira J, Rangeley J, Woods J, Hall L, Dalton M, Window N, Beirne P, Hardy T, Coakley G, Turtle L, Berridge A, Cross A, Key AL, Rowe A, Allt AM, Mears C, Malein F, Madzamba G, Hardwick HE, Earley J, Hawkes J, Pratt J, Wyles J, Tripp KA, Hainey K, Allerton L, Lavelle-Langham L, Melling L, Wajero LO, Poll L, Noonan MJ, French N, Lewis-Burke N, Williams-Howard SA, Cooper S, Kaprowska S, Dobson SL, Marsh S, Highett V, Shaw V, Beadsworth M, Defres S, Watson E, Tiongson GF, Papineni P, Gurram S, Diwanji SN, Quaid S, Briggs A, Hastie C, Rogers N, Stensel D, Bishop L, McIvor K, Rivera-Ortega P, Al-Sheklly B, Avram C, Faluyi D, Blaikely J, Piper Hanley K, Radhakrishnan K, Buch M, Hanley NA, Odell N, Osbourne R, Stockdale S, Felton T, Gorsuch T, Hussell T, Kausar Z, Kabir T, McAllister-Williams H, Paddick S, Burn D, Ayoub A, Greenhalgh A, Sayer A, Young A, Price D, Burns G, MacGowan G, Fisher H, Tedd H, Simpson J, Jiwa K, Witham M, Hogarth P, West S, Wright S, McMahon MJ, Neill P, Dougherty A, Morrow A, Anderson D, Grieve D, Bayes H, Fallon K, Mangion K, Gilmour L, Basu N, Sykes R, Berry C, McInnes IB, Donaldson A, Sage EK, Barrett F, Welsh B, Bell M, Quigley J, Leitch K, Macliver L, Patel M, Hamil R, Deans A, Furniss J, Clohisey S, Elliott A, Solstice AR, Deas C, Tee C, Connell D, Sutherland D, George J, Mohammed S, Bunker J, Holmes K, Dipper A, Morley A, Arnold D, Adamali H, Welch H, Morrison L, Stadon L, Maskell N, Barratt S, Dunn S, Waterson S, Jayaraman B, Light T, Selby N, Hosseini A, Shaw K, Almeida P, Needham R, Thomas AK, Matthews L, Gupta A, Nikolaidis A, Dupont C, Bonnington J, Chrystal M, Greenhaff PL, Linford S, Prosper S, Jang W, Alamoudi A, Bloss A, Megson C, Nicoll D, Fraser E, Pacpaco E, Conneh F, Ogg G, McShane H, Koychev I, Chen J, Pimm J, Ainsworth M, Pavlides M, Sharpe M, Havinden-Williams M, Petousi N, Talbot N, Carter P, Kurupati P, Dong T, Peng Y, Burns A, Kanellakis N, Korszun A, Connolly B, Busby J, Peto T, Patel B, Nolan CM, Cristiano D, Walsh JA, Liyanage K, Gummadi M, Dormand N, Polgar O, George P, Barker RE, Patel S, Price L, Gibbons M, Matila D, Jarvis H, Lim L, Olaosebikan O, Ahmad S, Brill S, Mandal S, Laing C, Michael A, Reddy A, Johnson C, Baxendale H, Parfrey H, Mackie J, Newman J, Pack J, Parmar J, Paques K, Garner L, Harvey A, Summersgill C, Holgate D, Hardy E, Oxton J, Pendlebury J, McMorrow L, Mairs N, Majeed N, Dark P, Ugwuoke R, Knight S, Whittaker S, Strong-Sheldrake S, Matimba-Mupaya W, Chowienczyk P, Pattenadk D, Hurditch E, Chan F, Carborn H, Foot H, Bagshaw J, Hockridge J, Sidebottom J, Lee JH, Birchall K, Turner K, Haslam L, Holt L, Milner L, Begum M, Marshall M, Steele N, Tinker N, Ravencroft P, Butcher R, Misra S, Walker S, Coburn Z, Fairman A, Ford A, Holbourn A, Howell A, Lawrie A, Lye A, Mbuyisa A, Zawia A, Holroyd-Hind B, Thamu B, Clark C, Jarman C, Norman C, Roddis C, Foote D, Lee E, Ilyas F, Stephens G, Newell H, Turton H, Macharia I, Wilson I, Cole J, McNeill J, Meiring J, Rodger J, Watson J, Chapman K, Harrington K, Chetham L, Hesselden L, Nwafor L, Dixon M, Plowright M, Wade P, Gregory R, Lenagh R, Stimpson R, Megson S, Newman T, Cheng Y, Goodwin C, Heeley C, Sissons D, Sowter D, Gregory H, Wynter I, Hutchinson J, Kirk J, Bennett K, Slack K, Allsop L, Holloway L, Flynn M, Gill M, Greatorex M, Holmes M, Buckley P, Shelton S, Turner S, Sewell TA, Whitworth V, Lovegrove W, Tomlinson J, Warburton L, Painter S, Vickers C, Redwood D, Tilley J, Palmer S, Wainwright T, Breen G, Hotopf M, Dunleavy A, Teixeira J, Ali M, Mencias M, Msimanga N, Siddique S, Samakomva T, Tavoukjian V, Forton D, Ahmed R, Cook A, Thaivalappil F, Connor L, Rees T, McNarry M, Williams N, McCormick J, McIntosh J, Vere J, Coulding M, Kilroy S, Turner V, Butt AT, Savill H, Fraile E, Ugoji J, Landers G, Lota H, Portukhay S, Nasseri M, Daniels A, Hormis A, Ingham J, Zeidan L, Osborne L, Chablani M, Banerjee A, David A, Pakzad A, Rangelov B, Williams B, Denneny E, Willoughby J, Xu M, Mehta P, Batterham R, Bell R, Aslani S, Lilaonitkul W, Checkley A, Bang D, Basire D, Lomas D, Wall E, Plant H, Roy K, Heightman M, Lipman M, Merida Morillas M, Ahwireng N, Chambers RC, Jastrub R, Logan S, Hillman T, Botkai A, Casey A, Neal A, Newton-Cox A, Cooper B, Atkin C, McGee C, Welch C, Wilson D, Sapey E, Qureshi H, Hazeldine J, Lord JM, Nyaboko J, Short J, Stockley J, Dasgin J, Draxlbauer K, Isaacs K, Mcgee K, Yip KP, Ratcliffe L, Bates M, Ventura M, Ahmad Haider N, Gautam N, Baggott R, Holden S, Madathil S, Walder S, Yasmin S, Hiwot T, Jackson T, Soulsby T, Kamwa V, Peterkin Z, Suleiman Z, Chaudhuri N, Wheeler H, Djukanovic R, Samuel R, Sass T, Wallis T, Marshall B, Childs C, Marouzet E, Harvey M, Fletcher S, Dickens C, Beckett P, Nanda U, Daynes E, Charalambou A, Yousuf AJ, Lea A, Prickett A, Gooptu B, Hargadon B, Bourne C, Christie C, Edwardson C, Lee D, Baldry E, Stringer E, Woodhead F, Mills G, Arnold H, Aung H, Qureshi IN, Finch J, Skeemer J, Hadley K, Khunti K, Carr L, Ingram L, Aljaroof M, Bakali M, Bakau M, Baldwin M, Bourne M, Pareek M, Soares M, Tobin M, Armstrong N, Brunskill N, Goodman N, Cairns P, Haldar P, McCourt P, Dowling R, Russell R, Diver S, Edwards S, Glover S, Parker S, Siddiqui S, Ward TJC, Mcnally T, Thornton T, Yates T, Ibrahim W, Monteiro W, Thickett D, Wilkinson D, Broome M, McArdle P, Upthegrove R, Wraith D, Langenberg C, Summers C, Bullmore E, Heeney JL, Schwaeble W, Sudlow CL, Adeloye D, Newby DE, Rudan I, Shankar-Hari M, Thorpe M, Pius R, Walmsley S, McGovern A, Ballard C, Allan L, Dennis J, Cavanagh J, Petrie J, O'Donnell K, Spears M, Sattar N, MacDonald S, Guthrie E, Henderson M, Guillen Guio B, Zhao B, Lawson C, Overton C, Taylor C, Tong C, Mukaetova-Ladinska E, Turner E, Pearl JE, Sargant J, Wormleighton J, Bingham M, Sharma M, Steiner M, Samani N, Novotny P, Free R, Allen RJ, Finney S, Terry S, Brugha T, Plekhanova T, McArdle A, Vinson B, Spencer LG, Reynolds W, Ashworth M, Deakin B, Chinoy H, Abel K, Harvie M, Stanel S, Rostron A, Coleman C, Baguley D, Hufton E, Khan F, Hall I, Stewart I, Fabbri L, Wright L, Kitterick P, Morriss R, Johnson S, Bates A, Antoniades C, Clark D, Bhui K, Channon KM, Motohashi K, Sigfrid L, Husain M, Webster M, Fu X, Li X, Kingham L, Klenerman P, Miiler K, Carson G, Simons G, Huneke N, Calder PC, Baldwin D, Bain S, Lasserson D, Daines L, Bright E, Stern M, Crisp P, Dharmagunawardena R, Reddington A, Wight A, Bailey L, Ashish A, Robinson E, Cooper J, Broadley A, Turnbull A, Brookes C, Sarginson C, Ionita D, Redfearn H, Elliott K, Barman L, Griffiths L, Guy Z, Gill R, Nathu R, Harris E, Moss P, Finnigan J, Saunders K, Saunders P, Kon S, Kon SS, O'Brien L, Shah K, Shah P, Richardson E, Brown V, Brown M, Brown J, Brown J, Brown A, Brown A, Brown M, Choudhury N, Jones S, Jones H, Jones L, Jones I, Jones G, Jones H, Jones D, Davies F, Davies E, Davies K, Davies G, Davies GA, Howard K, Porter J, Rowland J, Rowland A, Scott K, Singh S, Singh C, Thomas S, Thomas C, Lewis V, Lewis J, Lewis D, Harrison P, Francis C, Francis R, Hughes RA, Hughes J, Hughes AD, Thompson T, Kelly S, Smith D, Smith N, Smith A, Smith J, Smith L, Smith S, Evans T, Evans RI, Evans D, Evans R, Evans H, Evans J. Multiorgan MRI findings after hospitalisation with COVID-19 in the UK (C-MORE): a prospective, multicentre, observational cohort study. Lancet Respir Med 2023; 11:1003-1019. [PMID: 37748493 PMCID: PMC7615263 DOI: 10.1016/s2213-2600(23)00262-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 06/16/2023] [Accepted: 06/30/2023] [Indexed: 09/27/2023]
Abstract
INTRODUCTION The multiorgan impact of moderate to severe coronavirus infections in the post-acute phase is still poorly understood. We aimed to evaluate the excess burden of multiorgan abnormalities after hospitalisation with COVID-19, evaluate their determinants, and explore associations with patient-related outcome measures. METHODS In a prospective, UK-wide, multicentre MRI follow-up study (C-MORE), adults (aged ≥18 years) discharged from hospital following COVID-19 who were included in Tier 2 of the Post-hospitalisation COVID-19 study (PHOSP-COVID) and contemporary controls with no evidence of previous COVID-19 (SARS-CoV-2 nucleocapsid antibody negative) underwent multiorgan MRI (lungs, heart, brain, liver, and kidneys) with quantitative and qualitative assessment of images and clinical adjudication when relevant. Individuals with end-stage renal failure or contraindications to MRI were excluded. Participants also underwent detailed recording of symptoms, and physiological and biochemical tests. The primary outcome was the excess burden of multiorgan abnormalities (two or more organs) relative to controls, with further adjustments for potential confounders. The C-MORE study is ongoing and is registered with ClinicalTrials.gov, NCT04510025. FINDINGS Of 2710 participants in Tier 2 of PHOSP-COVID, 531 were recruited across 13 UK-wide C-MORE sites. After exclusions, 259 C-MORE patients (mean age 57 years [SD 12]; 158 [61%] male and 101 [39%] female) who were discharged from hospital with PCR-confirmed or clinically diagnosed COVID-19 between March 1, 2020, and Nov 1, 2021, and 52 non-COVID-19 controls from the community (mean age 49 years [SD 14]; 30 [58%] male and 22 [42%] female) were included in the analysis. Patients were assessed at a median of 5·0 months (IQR 4·2-6·3) after hospital discharge. Compared with non-COVID-19 controls, patients were older, living with more obesity, and had more comorbidities. Multiorgan abnormalities on MRI were more frequent in patients than in controls (157 [61%] of 259 vs 14 [27%] of 52; p<0·0001) and independently associated with COVID-19 status (odds ratio [OR] 2·9 [95% CI 1·5-5·8]; padjusted=0·0023) after adjusting for relevant confounders. Compared with controls, patients were more likely to have MRI evidence of lung abnormalities (p=0·0001; parenchymal abnormalities), brain abnormalities (p<0·0001; more white matter hyperintensities and regional brain volume reduction), and kidney abnormalities (p=0·014; lower medullary T1 and loss of corticomedullary differentiation), whereas cardiac and liver MRI abnormalities were similar between patients and controls. Patients with multiorgan abnormalities were older (difference in mean age 7 years [95% CI 4-10]; mean age of 59·8 years [SD 11·7] with multiorgan abnormalities vs mean age of 52·8 years [11·9] without multiorgan abnormalities; p<0·0001), more likely to have three or more comorbidities (OR 2·47 [1·32-4·82]; padjusted=0·0059), and more likely to have a more severe acute infection (acute CRP >5mg/L, OR 3·55 [1·23-11·88]; padjusted=0·025) than those without multiorgan abnormalities. Presence of lung MRI abnormalities was associated with a two-fold higher risk of chest tightness, and multiorgan MRI abnormalities were associated with severe and very severe persistent physical and mental health impairment (PHOSP-COVID symptom clusters) after hospitalisation. INTERPRETATION After hospitalisation for COVID-19, people are at risk of multiorgan abnormalities in the medium term. Our findings emphasise the need for proactive multidisciplinary care pathways, with the potential for imaging to guide surveillance frequency and therapeutic stratification. FUNDING UK Research and Innovation and National Institute for Health Research.
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Zhou Z, Tong C, Tian L, Zhang X, Li Y, Xiao Y, Yan L. Retrospective study of preservation and transection of the round ligament of uterus during laparoscopic transabdominal preperitoneal inguinal hernia repair in adult women. Hernia 2023; 27:1195-1202. [PMID: 36949269 PMCID: PMC10533639 DOI: 10.1007/s10029-023-02765-4] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 03/01/2023] [Indexed: 03/24/2023]
Abstract
PURPOSE The processing of the round ligament of uterus in laparoscopic transabdominal preperitoneal (TAPP) repair of inguinal hernia in women has contended. This study aimed to explore whether there is any difference in the surgical outcome and postoperative complications between the two processing modalities, preservation, and transection of the round ligament of uterus, in adult female inguinal hernia patients undergoing TAPP. METHODS Retrospective analysis of 84 female patients (117 sides) who underwent TAPP in XXX Hospital from July 2013 to August 2022. Patient characteristics and technical details of the surgical procedure were collected and divided into two groups according to whether the round ligament of uterus was severed intraoperatively or not. There were 52 cases (77 sides) in the group with preservation of the round ligament of uterus and 32 cases (40 sides) in the group with transection of the round ligament of uterus, comparing the general condition, surgical condition, and the occurrence of postoperative related complications between the 2 groups. RESULTS The operative time for unilateral primary inguinal hernia was (129.2 ± 35.1) and (89.5 ± 42.6) minutes in the preservation and transection groups, respectively. There were no statistical differences between the two groups in terms of age, length of hospital stay, ASA, BMI, history of lower abdominal surgery, type and side of hernia, intraoperative bleeding, and time to surgery for primary bilateral hernia (P > 0.05). In addition, there was likewise no statistical difference in the occurrence of postoperative Clavien-Dindo classification, VAS, seroma, mesh infection, labia majora edema, chronic pain or abnormal sensation in the inguinal region, and hernia recurrence in the two groups as well (P > 0.05). CONCLUSION There is no evidence that the transection of the round ligament of the uterus during TAPP has an impact on postoperative complications in patients. However, given the important role of the uterine round ligament in the surgical management of patients with uterine prolapse and the high incidence of uterine prolapse in older women, hernia surgeons should also be aware of the need to protect the round ligament of uterus in older women.
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Affiliation(s)
- Z Zhou
- Department of General Surgery, Shaanxi Provincial People's Hospital, Xi'an, 710068, China
- Yan'an University, Yan'an, China
| | - C Tong
- Department of General Surgery, Shaanxi Provincial People's Hospital, Xi'an, 710068, China
| | - L Tian
- Department of General Surgery, Shaanxi Provincial People's Hospital, Xi'an, 710068, China
| | - X Zhang
- Department of General Surgery, Shaanxi Provincial People's Hospital, Xi'an, 710068, China
| | - Y Li
- Department of General Surgery, Shaanxi Provincial People's Hospital, Xi'an, 710068, China
| | - Y Xiao
- Department of General Surgery, Shaanxi Provincial People's Hospital, Xi'an, 710068, China
| | - L Yan
- Department of General Surgery, Shaanxi Provincial People's Hospital, Xi'an, 710068, China.
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Crichton J, Cox S, Tong C, Leow P, Field X, Welsh F. Observation versus intervention for incidental common bile duct stones at intraoperative cholangiogram: a systematic review. ANZ J Surg 2023; 93:1839-1846. [PMID: 37381094 DOI: 10.1111/ans.18581] [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: 05/07/2023] [Revised: 06/15/2023] [Accepted: 06/20/2023] [Indexed: 06/30/2023]
Abstract
BACKGROUND The natural history of incidental common bile duct stones (CBDS) is poorly understood. Current evidence is conflicting, with several studies suggesting the majority may pass spontaneously. Despite this, guidelines recommend routine removal even if asymptomatic. This study aimed to systematically review the outcomes of expectant management for CBDS detected on operative cholangiography during cholecystectomy. METHODS MEDLINE, Embase and CINAHL databases were systematically searched. Participants were adult patients with CBDS identified by intraoperative cholangiography. Intervention was regarded as any perioperative effort to remove common bile duct stones, including endoscopic retrograde cholangiopancreatography (ERCP), laparoscopic and open bile duct exploration. This was compared to observation. Outcomes of interest included rates of spontaneous stone passage, success of duct clearance and complications. Risk of bias was assessed using the ROBINS-I tool. RESULTS Eight studies were included. All studies were non-randomized, heterogeneous and at serious risk of bias. In patients observed after a positive IOC, 20.9% went on to have symptomatic retained stones. In patients directed to ERCP for positive IOC, persistent CBDS were found in 50.6%. Spontaneous passage was not associated with stone size. Meta-analysis is dominated by the results from one large database, which recommends intervention for incidental stones, despite low rates of persistent stones seen at postoperative ERCP. CONCLUSIONS Further evidence is required before a definitive recommendation on observation can be made. There is some evidence that asymptomatic stones may be safely observed. In clinical scenarios where the risks of biliary intervention are considered high, a conservative strategy could be more widely considered.
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Affiliation(s)
- J Crichton
- Department of General Surgery, Te Whatu Ora Waitaha Canterbury, Christchurch Hospital, Christchurch, New Zealand
- Department of General Surgery, Te Whatu Ora Waikato, Waikato Hospital, Hamilton, New Zealand
| | - S Cox
- Department of General Surgery, Te Whatu Ora Waikato, Waikato Hospital, Hamilton, New Zealand
| | - C Tong
- Department of General Surgery, Te Whatu Ora Waikato, Waikato Hospital, Hamilton, New Zealand
| | - P Leow
- Department of General Surgery, Te Whatu Ora Waikato, Waikato Hospital, Hamilton, New Zealand
| | - X Field
- Department of General Surgery, Te Whatu Ora Waikato, Waikato Hospital, Hamilton, New Zealand
| | - F Welsh
- Department of General Surgery, Te Whatu Ora Waikato, Waikato Hospital, Hamilton, New Zealand
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Li D, Zhong W, Li L, Tong C, Yu S, Duan M, Xu J, Liu X, Pang J, Wu C. Effect of chitin nanowhiskers on structural and physical properties of konjac glucomannan hydrogels nanocomposites. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2023.108731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
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Xu J, He M, Wei C, Duan M, Yu S, Li D, Zhong W, Tong C, Pang J, Wu C. Konjac glucomannan films with Pickering emulsion stabilized by TEMPO-oxidized chitin nanocrystal for active food packaging. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2023.108539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Yu R, Leung G, Lai D, Tong C, Tam LY, Cheng C, Kong S, Woo J. Assessing the Readiness for Implementing the World Health Organization's ICOPE Approach in Hong Kong: Perspectives from Social Care and Policy Stakeholders. J Frailty Aging 2023; 12:126-133. [PMID: 36946709 DOI: 10.14283/jfa.2023.3] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Although integrated care has been considered a key strategy in reforming health systems around the world, it seems hard to realise in practice, particularly in the part of medical social integration. Worse still, little is known about the capacity of social care professionals who implement it, or their perceived roles and responsibilities, as well as the barriers and facilitators that stakeholders from the health and social sectors identify as factors affecting the ICOPE implementation process. Therefore, the present study was performed to probe into these issues. Data were collected from an online survey based on the WHO ICOPE scorecard (N = 34), and focus groups with policy makers, managers, health and social care professionals (N = 47). Inductive analyses were performed in accordance with the service and system levels within the WHO ICOPE implementation framework. While the findings from the scorecard survey highlight the gap in actualizing the ICOPE approach within the existing social services and care structures, we found support for a model of integrated care underpinned by the WHO ICOPE approach. Factors that may hinder and facilitate ICOPE implementation include workforce capacity-building, coordinated networks and partnerships, and financial mechanisms. This finding can help inform subsequent actions that further support health and social care advancement and collaboration, and the implementation of the ICOPE approach.
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Affiliation(s)
- R Yu
- Ruby Yu, The Chinese University of Hong Kong, Hong Kong,
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Yu R, Lai D, Leung G, Tong C, Yuen S, Woo J. A Dyadic Cooking-Based Intervention for Improving Subjective Health and Well-Being of Older Adults with Subjective Cognitive Decline and Their Caregivers: A Randomized Controlled Trial. J Nutr Health Aging 2023; 27:824-832. [PMID: 37960905 DOI: 10.1007/s12603-023-1990-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 09/04/2023] [Indexed: 11/15/2023]
Abstract
OBJECTIVES Evidence on the effectiveness of cooking activities as a well-being promotion intervention for older adults with subjective cognitive decline (SCD) and their caregivers is scarce. In view of this, a randomized controlled trial was conducted to examine whether a dyadic cooking-based intervention can improve the subjective health and well-being of older adults with SCD and their caregivers, as well as the cooking competence of the former group. DESIGN Randomized controlled trial. SETTING Community. PARTICIPANTS Sixty pairs of community-dwelling older adults aged 60 years or above with SCD (mean age = 78.4 years) and their caregivers (mean age = 65.3 years) were randomly assigned to the intervention group (N = 30 pairs) and the wait-list control group (N = 30 pairs). INTERVENTION The intervention was an innovative 5-week (two hours per week) dyadic cooking-based intervention employing procedural learning methods specifically adapted for older adults with SCD. MEASUREMENTS The outcome measures included 1) a well-being index composed by four indicators: life satisfaction, feeling of happiness, sense of purpose and meaning in life, and perceived health, and 2) cooking competence. RESULTS For both older adults with SCD and their caregivers, the increases in the well-being index were significantly greater in the intervention group than in the control group (β = 0.508, 95% CI [0.036, 0.980]). For older adults with SCD, the increases in the cooking competence score were significantly greater in the intervention group than in the control group (β = 1.629, 95% CI [0.165, 3.071]). CONCLUSION The dyadic cooking-based intervention resulted in improvements in the cooking competence and well-being of older adults with SCD, as well as the well-being of caregivers.
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Affiliation(s)
- R Yu
- Ruby Yu, Jockey Club Institute of Ageing, The Chinese University of Hong Kong, Hong Kong,
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Yu R, Lai D, Leung G, Tam LY, Cheng C, Kong S, Tong C, Cheung B, Woo J. Moving towards the ICOPE Approach: Evaluation of Community-Based Intervention Activities on Improving Intrinsic Capacity. J Nutr Health Aging 2023; 27:1028-1037. [PMID: 37997725 DOI: 10.1007/s12603-023-2003-0] [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: 04/17/2023] [Accepted: 09/12/2023] [Indexed: 11/25/2023]
Abstract
OBJECTIVES Different types of community-based intervention activities may have differential effects in improving the intrinsic capacity (IC) of older people. This study aims to (i) identify subgroups of older people based on their IC impairments, (ii) examine the differential associations between different types of activity participations and change in IC across subgroups, and (iii) assess whether the activity participation patterns of older people align with the way that would benefit them the most. METHODS Participants were community-dwelling older people aged 60 years or above. They were screened for IC impairments at baseline, and their participation records of different types (cognitive, physical, nutritional, mental, and social) of intervention activities were collected for one year. An aggregated IC score was created based on four IC domains including cognitive (self-rated memory), locomotor (self-rated difficulties in walking), vitality (self-rated weight loss), and psychological (subjective well-being). Cluster analysis was used to group homogenous participants. Mixed-effects regression was used to examine the associations between activity counts (i.e., number of sessions participated) and change in IC. Activity participation patterns were also compared across subgroups. RESULTS Data were obtained from 7,357 participants (mean age = 74.72 years). Four clusters were identified, including those who were relatively robust (cluster 1, N = 4,380, 59.5%), those who had cognitive decline (cluster 2, N = 2,134, 29.0%), those who had impaired mobility and vitality (cluster 3, N = 319, 4.3%), and those with poor psychological well-being (cluster 4, N = 524, 7.1%). Overall, activity count was associated with IC improvement (β = 0.073, 95% CI [0.037, 0.108]). However, as regards the cluster-specific results, different types of activities were associated with IC improvement for different specific clusters. For instance, cognitive activity count was associated with IC improvement only for cluster 2 (β = 0.491, 95% CI [0.258, 0.732]). Notably, none of the activity types were associated with IC improvement for cluster 1. Regarding the activity participation patterns, there were no significant differences across the four clusters (Wilk's Λ = 0.997, F = 1.400, p = .138). CONCLUSIONS AND IMPLICATIONS IC improvement depended on the activity types and IC status of older people. In view of this, a people-centred and targeted approach should be adopted to maximize the overall benefits of intervention activities.
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Affiliation(s)
- R Yu
- Ruby Yu, Department of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, E-mail:
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Tong C, Li Q, Kong L, Ni X, Halengbieke A, Zhang S, Wu Z, Tao L, Han Y, Zheng D, Guo X, Yang X. Sex-specific metabolic risk factors and their trajectories towards the non-alcoholic fatty liver disease incidence. J Endocrinol Invest 2022; 45:2233-2245. [PMID: 35896944 DOI: 10.1007/s40618-022-01848-w] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 06/21/2022] [Indexed: 11/28/2022]
Abstract
PURPOSE Non-alcoholic fatty liver disease (NAFLD) is a common chronic liver disease. This study examined sex-specific associations between NAFLD and metabolic factors and investigated the trajectory of risk factors. METHODS We retrospectively investigated 16,140 individuals from Beijing Health Management Cohort. Univariate and multivariate time-dependent Cox regression analyses were performed to identify independent risk factors for new-onset NAFLD. The trajectory of risk factors was investigated using the latent growth curve model and growth mixture model. RESULTS Over a median follow-up of 3.15 years, 2,450 (15.18%) participants developed NAFLD. The risk factors for NAFLD in men were increased body mass index (BMI); waist circumference (WC); triglyceride (TG), low-density lipoprotein cholesterol (LDL-C), haemoglobin (Hb), and serum uric acid (SUA) levels; and platelet (PLT) count and decreased serum creatinine-to-body weight (sCr/bw) and high-density lipoprotein cholesterol (HDL-C) levels. In women, the risk factors were increased BMI, WC, and fasting plasma glucose (FPG), TG, LDL-C, SUA, white blood cell (WBC), and PLT and decreased sCr/bw and HDL-C levels. In addition, BMI, LDL-C, sCr/bw and PLT changing trajectories were associated with NAFLD in men; BMI, WC, TG, LDL-C, SUA and sCr/bw trends was associated with NAFLD risk in women. CONCLUSIONS Development of NAFLD is associated with BMI, LDL-C, sCr/bw and PLT changing trajectories in men; BMI, WC, TG, LDL-C, SUA and sCr/bw trends are associated an increased risk of NAFLD in women. Deterioration of metabolic risk factors status can be a predictor of NAFLD many years before its occurrence.
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Affiliation(s)
- C Tong
- School of Public Health, Capital Medical University, 10 Xitoutiao, Youanmen, Fengtai District, Beijing, 100069, China
- Beijing Municipal Key Laboratory of Clinical Epidemiology, No. 10 Xitoutiao, Youanmen, Fengtai District, Beijing, 100069, China
| | - Q Li
- Science and Education Section, Beijing Physical Examination Center, No. 59, Beiwei Road, Xicheng district, Beijing, China
| | - L Kong
- Information Center, Beijing Physical Examination Center, No. 59, Beiwei Road, Xicheng district, Beijing, China
| | - X Ni
- School of Public Health, Capital Medical University, 10 Xitoutiao, Youanmen, Fengtai District, Beijing, 100069, China
- Beijing Municipal Key Laboratory of Clinical Epidemiology, No. 10 Xitoutiao, Youanmen, Fengtai District, Beijing, 100069, China
| | - A Halengbieke
- School of Public Health, Capital Medical University, 10 Xitoutiao, Youanmen, Fengtai District, Beijing, 100069, China
- Beijing Municipal Key Laboratory of Clinical Epidemiology, No. 10 Xitoutiao, Youanmen, Fengtai District, Beijing, 100069, China
| | - S Zhang
- Medical Records Statistics Office, Peking University First Hospital, Beijing, 100034, China
| | - Z Wu
- School of Public Health, Capital Medical University, 10 Xitoutiao, Youanmen, Fengtai District, Beijing, 100069, China
- Beijing Municipal Key Laboratory of Clinical Epidemiology, No. 10 Xitoutiao, Youanmen, Fengtai District, Beijing, 100069, China
| | - L Tao
- School of Public Health, Capital Medical University, 10 Xitoutiao, Youanmen, Fengtai District, Beijing, 100069, China
- Beijing Municipal Key Laboratory of Clinical Epidemiology, No. 10 Xitoutiao, Youanmen, Fengtai District, Beijing, 100069, China
| | - Y Han
- Science and Education Section, Beijing Physical Examination Center, No. 59, Beiwei Road, Xicheng district, Beijing, China
| | - D Zheng
- School of Public Health, Capital Medical University, 10 Xitoutiao, Youanmen, Fengtai District, Beijing, 100069, China
- Beijing Municipal Key Laboratory of Clinical Epidemiology, No. 10 Xitoutiao, Youanmen, Fengtai District, Beijing, 100069, China
| | - X Guo
- School of Public Health, Capital Medical University, 10 Xitoutiao, Youanmen, Fengtai District, Beijing, 100069, China
- Beijing Municipal Key Laboratory of Clinical Epidemiology, No. 10 Xitoutiao, Youanmen, Fengtai District, Beijing, 100069, China
| | - X Yang
- School of Public Health, Capital Medical University, 10 Xitoutiao, Youanmen, Fengtai District, Beijing, 100069, China.
- Beijing Municipal Key Laboratory of Clinical Epidemiology, No. 10 Xitoutiao, Youanmen, Fengtai District, Beijing, 100069, China.
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Zhong W, Zhi Z, Zhao J, Li D, Yu S, Duan M, Xu J, Tong C, Pang J, Wu C. Oxidized Chitin Nanocrystals Greatly Strengthen the Stability of Resveratrol-Loaded Gliadin Nanoparticles. J Agric Food Chem 2022; 70:13778-13786. [PMID: 36196864 DOI: 10.1021/acs.jafc.2c04174] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Resveratrol (RES) is a natural polyphenol with a variety of health beneficial properties, but its application is greatly limited due to low aqueous solubility and poor bioavailability. This study aims to address these issues via gliadin nanoparticles stabilized with oxidized chitin nanocrystals (O-ChNCs) as a delivery system for RES. RES-loaded gliadin nanoparticles (GRNPs) were fabricated by an antisolvent method, and their formation mechanism was elucidated using zeta-potential, FTIR, XRD, and TEM. Furthermore, the effect of O-ChNCs on the colloidal stability and bioactiveness of GRNPs was discussed. The results demonstrate that O-ChNCs are adsorbed onto the surface of GRNPs through hydrogen bonding and electrostatic interactions, leading to the enhanced absolute potential and the improved hydrophobicity of the particles, which in turn facilitates the stability of the GRNPs. Furthermore, the changes in the release profile and antioxidant activity of RES in the simulated gastric and intestinal tracts indicate that the adsorption of O-ChNCs not only delays the release of RES but also has a protective effect on the antioxidant capacity of RES. This study provides significant implications for developing stable gliadin nanoparticles as delivery vehicles for bioactive substances.
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Affiliation(s)
- Weiquan Zhong
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian350002, China
| | - Zijian Zhi
- Food Structure and Function (FSF) Research Group, Department of Food Technology, Safety and Health, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, Gent9000, Belgium
| | - Jianbo Zhao
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian350002, China
| | - Danjie Li
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian350002, China
| | - Shan Yu
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian350002, China
| | - Mengxia Duan
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian350002, China
| | - Jingting Xu
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian350002, China
| | - Cailing Tong
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian350002, China
| | - Jie Pang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian350002, China
| | - Chunhua Wu
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian350002, China
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16
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Gu Z, Yin Z, Song P, Wu Y, He Y, Zhu M, Wu Z, Zhao S, Huang H, Wang H, Tong C, Qi Z. Safety and biodistribution of exosomes derived from human induced pluripotent stem cells. Front Bioeng Biotechnol 2022; 10:949724. [PMID: 36091443 PMCID: PMC9461140 DOI: 10.3389/fbioe.2022.949724] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Accepted: 07/27/2022] [Indexed: 12/03/2022] Open
Abstract
As a new cell-free therapy, exosomes have provided new ideas for the treatment of various diseases. Human induced pluripotent stem cells (hiPSCs) cannot be used in clinical trials because of tumorigenicity, but the exosomes derived from hiPSCs may combine the advantages of iPSC pluripotency and the nanoscale size of exosomes while avoiding tumorigenicity. Currently, the safety and biodistribution of hiPSC-exosomes in vivo are unclear. Here, we investigated the effects of hiPSC-exosomes on hemolysis, DNA damage, and cytotoxicity through cell experiments. We also explored the safety of vein injection of hiPSC-exosomes in rabbits and rats. Differences in organ distribution after nasal administration were compared in normal and Parkinson’s disease model mice. This study may provide support for clinical therapy and research of intravenous and nasal administration of hiPSC-exosomes.
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Affiliation(s)
- Zhewei Gu
- Medical College, Guangxi University, Nanning, China
| | - Zhiyu Yin
- Medical College, Guangxi University, Nanning, China
| | - Pengbo Song
- Medical College, Guangxi University, Nanning, China
| | - Ying Wu
- Medical College, Guangxi University, Nanning, China
| | - Ying He
- Medical College, Guangxi University, Nanning, China
| | - Maoshu Zhu
- Medical College, Guangxi University, Nanning, China
| | - Zhengxin Wu
- Medical College, Guangxi University, Nanning, China
| | - Sicheng Zhao
- Medical College, Guangxi University, Nanning, China
| | - Hongri Huang
- GuangXi TaiMeiRenSheng Biotechnology Co., LTD., Nanning, China
| | - Huihuang Wang
- GuangXi TaiMeiRenSheng Biotechnology Co., LTD., Nanning, China
| | - Cailing Tong
- Biotechcomer Co., Ltd., Xiamen, China
- *Correspondence: Cailing Tong, ; Zhongquan Qi,
| | - Zhongquan Qi
- Medical College, Guangxi University, Nanning, China
- *Correspondence: Cailing Tong, ; Zhongquan Qi,
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Evans RA, Leavy OC, Richardson M, Elneima O, McAuley HJC, Shikotra A, Singapuri A, Sereno M, Saunders RM, Harris VC, Houchen-Wolloff L, Aul R, Beirne P, Bolton CE, Brown JS, Choudhury G, Diar-Bakerly N, Easom N, Echevarria C, Fuld J, Hart N, Hurst J, Jones MG, Parekh D, Pfeffer P, Rahman NM, Rowland-Jones SL, Shah AM, Wootton DG, Chalder T, Davies MJ, De Soyza A, Geddes JR, Greenhalf W, Greening NJ, Heaney LG, Heller S, Howard LS, Jacob J, Jenkins RG, Lord JM, Man WDC, McCann GP, Neubauer S, Openshaw PJM, Porter JC, Rowland MJ, Scott JT, Semple MG, Singh SJ, Thomas DC, Toshner M, Lewis KE, Thwaites RS, Briggs A, Docherty AB, Kerr S, Lone NI, Quint J, Sheikh A, Thorpe M, Zheng B, Chalmers JD, Ho LP, Horsley A, Marks M, Poinasamy K, Raman B, Harrison EM, Wain LV, Brightling CE, Abel K, Adamali H, Adeloye D, Adeyemi O, Adrego R, Aguilar Jimenez LA, Ahmad S, Ahmad Haider N, Ahmed R, Ahwireng N, Ainsworth M, Al-Sheklly B, Alamoudi A, Ali M, Aljaroof M, All AM, Allan L, Allen RJ, Allerton L, Allsop L, Almeida P, Altmann D, Alvarez Corral M, Amoils S, Anderson D, Antoniades C, Arbane G, Arias A, Armour C, Armstrong L, Armstrong N, Arnold D, Arnold H, Ashish A, Ashworth A, Ashworth M, Aslani S, Assefa-Kebede H, Atkin C, Atkin P, Aung H, Austin L, Avram C, Ayoub A, Babores M, Baggott R, Bagshaw J, Baguley D, Bailey L, Baillie JK, Bain S, Bakali M, Bakau M, Baldry E, Baldwin D, Ballard C, Banerjee A, Bang B, Barker RE, Barman L, Barratt S, Barrett F, Basire D, Basu N, Bates M, Bates A, Batterham R, Baxendale H, Bayes H, Beadsworth M, Beckett P, Beggs M, Begum M, Bell D, Bell R, Bennett K, Beranova E, Bermperi A, Berridge A, Berry C, Betts S, Bevan E, Bhui K, Bingham M, Birchall K, Bishop L, Bisnauthsing K, Blaikely J, Bloss A, Bolger A, Bonnington J, Botkai A, Bourne C, Bourne M, Bramham K, Brear L, Breen G, Breeze J, Bright E, Brill S, Brindle K, Broad L, Broadley A, Brookes C, Broome M, Brown A, Brown A, Brown J, Brown J, Brown M, Brown M, Brown V, Brugha T, Brunskill N, Buch M, Buckley P, Bularga A, Bullmore E, Burden L, Burdett T, Burn D, Burns G, Burns A, Busby J, Butcher R, Butt A, Byrne S, Cairns P, Calder PC, Calvelo E, Carborn H, Card B, Carr C, Carr L, Carson G, Carter P, Casey A, Cassar M, Cavanagh J, Chablani M, Chambers RC, Chan F, Channon KM, Chapman K, Charalambou A, Chaudhuri N, Checkley A, Chen J, Cheng Y, Chetham L, Childs C, Chilvers ER, Chinoy H, Chiribiri A, Chong-James K, Choudhury N, Chowienczyk P, Christie C, Chrystal M, Clark D, Clark C, Clarke J, Clohisey S, Coakley G, Coburn Z, Coetzee S, Cole J, Coleman C, Conneh F, Connell D, Connolly B, Connor L, Cook A, Cooper B, Cooper J, Cooper S, Copeland D, Cosier T, Coulding M, Coupland C, Cox E, Craig T, Crisp P, Cristiano D, Crooks MG, Cross A, Cruz I, Cullinan P, Cuthbertson D, Daines L, Dalton M, Daly P, Daniels A, Dark P, Dasgin J, David A, David C, Davies E, Davies F, Davies G, Davies GA, Davies K, Dawson J, Daynes E, Deakin B, Deans A, Deas C, Deery J, Defres S, Dell A, Dempsey K, Denneny E, Dennis J, Dewar A, Dharmagunawardena R, Dickens C, Dipper A, Diver S, Diwanji SN, Dixon M, Djukanovic R, Dobson H, Dobson SL, Donaldson A, Dong T, Dormand N, Dougherty A, Dowling R, Drain S, Draxlbauer K, Drury K, Dulawan P, Dunleavy A, Dunn S, Earley J, Edwards S, Edwardson C, El-Taweel H, Elliott A, Elliott K, Ellis Y, Elmer A, Evans D, Evans H, Evans J, Evans R, Evans RI, Evans T, Evenden C, Evison L, Fabbri L, Fairbairn S, Fairman A, Fallon K, Faluyi D, Favager C, Fayzan T, Featherstone J, Felton T, Finch J, Finney S, Finnigan J, Finnigan L, Fisher H, Fletcher S, Flockton R, Flynn M, Foot H, Foote D, Ford A, Forton D, Fraile E, Francis C, Francis R, Francis S, Frankel A, Fraser E, Free R, French N, Fu X, Furniss J, Garner L, Gautam N, George J, George P, Gibbons M, Gill M, Gilmour L, Gleeson F, Glossop J, Glover S, Goodman N, Goodwin C, Gooptu B, Gordon H, Gorsuch T, Greatorex M, Greenhaff PL, Greenhalgh A, Greenwood J, Gregory H, Gregory R, Grieve D, Griffin D, Griffiths L, Guerdette AM, Guillen Guio B, Gummadi M, Gupta A, Gurram S, Guthrie E, Guy Z, H Henson H, Hadley K, Haggar A, Hainey K, Hairsine B, Haldar P, Hall I, Hall L, Halling-Brown M, Hamil R, Hancock A, Hancock K, Hanley NA, Haq S, Hardwick HE, Hardy E, Hardy T, Hargadon B, Harrington K, Harris E, Harrison P, Harvey A, Harvey M, Harvie M, Haslam L, Havinden-Williams M, Hawkes J, Hawkings N, Haworth J, Hayday A, Haynes M, Hazeldine J, Hazelton T, Heeley C, Heeney JL, Heightman M, Henderson M, Hesselden L, Hewitt M, Highett V, Hillman T, Hiwot T, Hoare A, Hoare M, Hockridge J, Hogarth P, Holbourn A, Holden S, Holdsworth L, Holgate D, Holland M, Holloway L, Holmes K, Holmes M, Holroyd-Hind B, Holt L, Hormis A, Hosseini A, Hotopf M, Howard K, Howell A, Hufton E, Hughes AD, Hughes J, Hughes R, Humphries A, Huneke N, Hurditch E, Husain M, Hussell T, Hutchinson J, Ibrahim W, Ilyas F, Ingham J, Ingram L, Ionita D, Isaacs K, Ismail K, Jackson T, James WY, Jarman C, Jarrold I, Jarvis H, Jastrub R, Jayaraman B, Jezzard P, Jiwa K, Johnson C, Johnson S, Johnston D, Jolley CJ, Jones D, Jones G, Jones H, Jones H, Jones I, Jones L, Jones S, Jose S, Kabir T, Kaltsakas G, Kamwa V, Kanellakis N, Kaprowska S, Kausar Z, Keenan N, Kelly S, Kemp G, Kerslake H, Key AL, Khan F, Khunti K, Kilroy S, King B, King C, Kingham L, Kirk J, Kitterick P, Klenerman P, Knibbs L, Knight S, Knighton A, Kon O, Kon S, Kon SS, Koprowska S, Korszun A, Koychev I, Kurasz C, Kurupati P, Laing C, Lamlum H, Landers G, Langenberg C, Lasserson D, Lavelle-Langham L, Lawrie A, Lawson C, Lawson C, Layton A, Lea A, Lee D, Lee JH, Lee E, Leitch K, Lenagh R, Lewis D, Lewis J, Lewis V, Lewis-Burke N, Li X, Light T, Lightstone L, Lilaonitkul W, Lim L, Linford S, Lingford-Hughes A, Lipman M, Liyanage K, Lloyd A, Logan S, Lomas D, Loosley R, Lota H, Lovegrove W, Lucey A, Lukaschuk E, Lye A, Lynch C, MacDonald S, MacGowan G, Macharia I, Mackie J, Macliver L, Madathil S, Madzamba G, Magee N, Magtoto MM, Mairs N, Majeed N, Major E, Malein F, Malim M, Mallison G, Mandal S, Mangion K, Manisty C, Manley R, March K, Marciniak S, Marino P, Mariveles M, Marouzet E, Marsh S, Marshall B, Marshall M, Martin J, Martineau A, Martinez LM, Maskell N, Matila D, Matimba-Mupaya W, Matthews L, Mbuyisa A, McAdoo S, Weir McCall J, McAllister-Williams H, McArdle A, McArdle P, McAulay D, McCormick J, McCormick W, McCourt P, McGarvey L, McGee C, Mcgee K, McGinness J, McGlynn K, McGovern A, McGuinness H, McInnes IB, McIntosh J, McIvor E, McIvor K, McLeavey L, McMahon A, McMahon MJ, McMorrow L, Mcnally T, McNarry M, McNeill J, McQueen A, McShane H, Mears C, Megson C, Megson S, Mehta P, Meiring J, Melling L, Mencias M, Menzies D, Merida Morillas M, Michael A, Milligan L, Miller C, Mills C, Mills NL, Milner L, Misra S, Mitchell J, Mohamed A, Mohamed N, Mohammed S, Molyneaux PL, Monteiro W, Moriera S, Morley A, Morrison L, Morriss R, Morrow A, Moss AJ, Moss P, Motohashi K, Msimanga N, Mukaetova-Ladinska E, Munawar U, Murira J, Nanda U, Nassa H, Nasseri M, Neal A, Needham R, Neill P, Newell H, Newman T, Newton-Cox A, Nicholson T, Nicoll D, Nolan CM, Noonan MJ, Norman C, Novotny P, Nunag J, Nwafor L, Nwanguma U, Nyaboko J, O'Donnell K, O'Brien C, O'Brien L, O'Regan D, Odell N, Ogg G, Olaosebikan O, Oliver C, Omar Z, Orriss-Dib L, Osborne L, Osbourne R, Ostermann M, Overton C, Owen J, Oxton J, Pack J, Pacpaco E, Paddick S, Painter S, Pakzad A, Palmer S, Papineni P, Paques K, Paradowski K, Pareek M, Parfrey H, Pariante C, Parker S, Parkes M, Parmar J, Patale S, Patel B, Patel M, Patel S, Pattenadk D, Pavlides M, Payne S, Pearce L, Pearl JE, Peckham D, Pendlebury J, Peng Y, Pennington C, Peralta I, Perkins E, Peterkin Z, Peto T, Petousi N, Petrie J, Phipps J, Pimm J, Piper Hanley K, Pius R, Plant H, Plein S, Plekhanova T, Plowright M, Polgar O, Poll L, Porter J, Portukhay S, Powell N, Prabhu A, Pratt J, Price A, Price C, Price C, Price D, Price L, Price L, Prickett A, Propescu J, Pugmire S, Quaid S, Quigley J, Qureshi H, Qureshi IN, Radhakrishnan K, Ralser M, Ramos A, Ramos H, Rangeley J, Rangelov B, Ratcliffe L, Ravencroft P, Reddington A, Reddy R, Redfearn H, Redwood D, Reed A, Rees M, Rees T, Regan K, Reynolds W, Ribeiro C, Richards A, Richardson E, Rivera-Ortega P, Roberts K, Robertson E, Robinson E, Robinson L, Roche L, Roddis C, Rodger J, Ross A, Ross G, Rossdale J, Rostron A, Rowe A, Rowland A, Rowland J, Roy K, Roy M, Rudan I, Russell R, Russell E, Saalmink G, Sabit R, Sage EK, Samakomva T, Samani N, Sampson C, Samuel K, Samuel R, Sanderson A, Sapey E, Saralaya D, Sargant J, Sarginson C, Sass T, Sattar N, Saunders K, Saunders P, Saunders LC, Savill H, Saxon W, Sayer A, Schronce J, Schwaeble W, Scott K, Selby N, Sewell TA, Shah K, Shah P, Shankar-Hari M, Sharma M, Sharpe C, Sharpe M, Shashaa S, Shaw A, Shaw K, Shaw V, Shelton S, Shenton L, Shevket K, Short J, Siddique S, Siddiqui S, Sidebottom J, Sigfrid L, Simons G, Simpson J, Simpson N, Singh C, Singh S, Sissons D, Skeemer J, Slack K, Smith A, Smith D, Smith S, Smith J, Smith L, Soares M, Solano TS, Solly R, Solstice AR, Soulsby T, Southern D, Sowter D, Spears M, Spencer LG, Speranza F, Stadon L, Stanel S, Steele N, Steiner M, Stensel D, Stephens G, Stephenson L, Stern M, Stewart I, Stimpson R, Stockdale S, Stockley J, Stoker W, Stone R, Storrar W, Storrie A, Storton K, Stringer E, Strong-Sheldrake S, Stroud N, Subbe C, Sudlow CL, Suleiman Z, Summers C, Summersgill C, Sutherland D, Sykes DL, Sykes R, Talbot N, Tan AL, Tarusan L, Tavoukjian V, Taylor A, Taylor C, Taylor J, Te A, Tedd H, Tee CJ, Teixeira J, Tench H, Terry S, Thackray-Nocera S, Thaivalappil F, Thamu B, Thickett D, Thomas C, Thomas S, Thomas AK, Thomas-Woods T, Thompson T, Thompson AAR, Thornton T, Tilley J, Tinker N, Tiongson GF, Tobin M, Tomlinson J, Tong C, Touyz R, Tripp KA, Tunnicliffe E, Turnbull A, Turner E, Turner S, Turner V, Turner K, Turney S, Turtle L, Turton H, Ugoji J, Ugwuoke R, Upthegrove R, Valabhji J, Ventura M, Vere J, Vickers C, Vinson B, Wade E, Wade P, Wainwright T, Wajero LO, Walder S, Walker S, Walker S, Wall E, Wallis T, Walmsley S, Walsh JA, Walsh S, Warburton L, Ward TJC, Warwick K, Wassall H, Waterson S, Watson E, Watson L, Watson J, Welch C, Welch H, Welsh B, Wessely S, West S, Weston H, Wheeler H, White S, Whitehead V, Whitney J, Whittaker S, Whittam B, Whitworth V, Wight A, Wild J, Wilkins M, Wilkinson D, Williams N, Williams N, Williams J, Williams-Howard SA, Willicombe M, Willis G, Willoughby J, Wilson A, Wilson D, Wilson I, Window N, Witham M, Wolf-Roberts R, Wood C, Woodhead F, Woods J, Wormleighton J, Worsley J, Wraith D, Wrey Brown C, Wright C, Wright L, Wright S, Wyles J, Wynter I, Xu M, Yasmin N, Yasmin S, Yates T, Yip KP, Young B, Young S, Young A, Yousuf AJ, Zawia A, Zeidan L, Zhao B, Zongo O. Clinical characteristics with inflammation profiling of long COVID and association with 1-year recovery following hospitalisation in the UK: a prospective observational study. Lancet Respir Med 2022; 10:761-775. [PMID: 35472304 PMCID: PMC9034855 DOI: 10.1016/s2213-2600(22)00127-8] [Citation(s) in RCA: 144] [Impact Index Per Article: 72.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 03/23/2022] [Accepted: 03/31/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND No effective pharmacological or non-pharmacological interventions exist for patients with long COVID. We aimed to describe recovery 1 year after hospital discharge for COVID-19, identify factors associated with patient-perceived recovery, and identify potential therapeutic targets by describing the underlying inflammatory profiles of the previously described recovery clusters at 5 months after hospital discharge. METHODS The Post-hospitalisation COVID-19 study (PHOSP-COVID) is a prospective, longitudinal cohort study recruiting adults (aged ≥18 years) discharged from hospital with COVID-19 across the UK. Recovery was assessed using patient-reported outcome measures, physical performance, and organ function at 5 months and 1 year after hospital discharge, and stratified by both patient-perceived recovery and recovery cluster. Hierarchical logistic regression modelling was performed for patient-perceived recovery at 1 year. Cluster analysis was done using the clustering large applications k-medoids approach using clinical outcomes at 5 months. Inflammatory protein profiling was analysed from plasma at the 5-month visit. This study is registered on the ISRCTN Registry, ISRCTN10980107, and recruitment is ongoing. FINDINGS 2320 participants discharged from hospital between March 7, 2020, and April 18, 2021, were assessed at 5 months after discharge and 807 (32·7%) participants completed both the 5-month and 1-year visits. 279 (35·6%) of these 807 patients were women and 505 (64·4%) were men, with a mean age of 58·7 (SD 12·5) years, and 224 (27·8%) had received invasive mechanical ventilation (WHO class 7-9). The proportion of patients reporting full recovery was unchanged between 5 months (501 [25·5%] of 1965) and 1 year (232 [28·9%] of 804). Factors associated with being less likely to report full recovery at 1 year were female sex (odds ratio 0·68 [95% CI 0·46-0·99]), obesity (0·50 [0·34-0·74]) and invasive mechanical ventilation (0·42 [0·23-0·76]). Cluster analysis (n=1636) corroborated the previously reported four clusters: very severe, severe, moderate with cognitive impairment, and mild, relating to the severity of physical health, mental health, and cognitive impairment at 5 months. We found increased inflammatory mediators of tissue damage and repair in both the very severe and the moderate with cognitive impairment clusters compared with the mild cluster, including IL-6 concentration, which was increased in both comparisons (n=626 participants). We found a substantial deficit in median EQ-5D-5L utility index from before COVID-19 (retrospective assessment; 0·88 [IQR 0·74-1·00]), at 5 months (0·74 [0·64-0·88]) to 1 year (0·75 [0·62-0·88]), with minimal improvements across all outcome measures at 1 year after discharge in the whole cohort and within each of the four clusters. INTERPRETATION The sequelae of a hospital admission with COVID-19 were substantial 1 year after discharge across a range of health domains, with the minority in our cohort feeling fully recovered. Patient-perceived health-related quality of life was reduced at 1 year compared with before hospital admission. Systematic inflammation and obesity are potential treatable traits that warrant further investigation in clinical trials. FUNDING UK Research and Innovation and National Institute for Health Research.
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Yu S, Duan M, Sun J, Jiang H, Zhao J, Tong C, Pang J, Wu C. Immobilization of phlorotannins on nanochitin: A novel biopreservative for refrigerated sea bass (Lateolabrax japonicus) fillets. Int J Biol Macromol 2022; 200:626-634. [PMID: 35051506 DOI: 10.1016/j.ijbiomac.2022.01.089] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 01/03/2022] [Accepted: 01/12/2022] [Indexed: 11/05/2022]
Abstract
A novel biopreservative was developed by immobilizing phlorotannins into nanochitin (NCh). NCh were selected as a host complex to immobilized phlorotannins and the structural properties and antioxidant activity of the NCh-phlorotannins nanocomplex was investigated. The NCh-phlorotannins showed high antioxidant activity, as evidenced by free radical scavenging activity test. Moreover, the effects of NCh-phlorotannins on physical [color, water holding capacity (WHC), and texture], chemical [thiobarbituric acid (TBA) values, total volatile base nitrogen (TVB-N), and pH], microbiological [total viable count], changes of refrigerated sea bass (Lateolabrax japonicus) fillets were also evaluated. Sea bass fillets add with 1.5 g/kg NCh-phlorotannins had lower bacterial growth, pH, TVB-N and TBA as well as better characteristics of texture, color, and WHC than those of the control group during refrigerated storage. The efficiency of NCh-phlorotannins treatment was also better than that of phlorotannins or NCh treatment alone. Therefore, NCh-phlorotannins may be a potential biopreservative to extend the shelf-life of sea bass fillets quality during refrigerated storage.
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Affiliation(s)
- Shan Yu
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Mengxia Duan
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Jishuai Sun
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Haixin Jiang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Jianbo Zhao
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Cailing Tong
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Jie Pang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; Engineering Research Centre of Fujian-Taiwan Special Marine Food Processing and Nutrition, Ministry of Education, Fuzhou, Fujian, 350002, China.
| | - Chunhua Wu
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; Engineering Research Centre of Fujian-Taiwan Special Marine Food Processing and Nutrition, Ministry of Education, Fuzhou, Fujian, 350002, China.
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Liu S, Chen H, Wang C, Xu Q, Feng S, Wang Y, Yao J, Zhou Q, Tong C, Yang B, Chen J, Jiang H. POS-340 MAPK1 MEDIATES HIGH GLUCOSE INDUCED RENAL TUBULAR INJURY THROUGH DISRUPTING THE INTEGRITY OF MAM. Kidney Int Rep 2022. [DOI: 10.1016/j.ekir.2022.01.361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Wu Z, Tong C, Zhang J, Sun J, Jiang H, Duan M, Wen C, Wu C, Pang J. Investigation of the structural and physical properties, antioxidant and antimicrobial activity of konjac glucomannan/cellulose nanocrystal bionanocomposite films incorporated with phlorotannin from Sargassum. Int J Biol Macromol 2021; 192:323-330. [PMID: 34634327 DOI: 10.1016/j.ijbiomac.2021.09.200] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 09/28/2021] [Accepted: 09/28/2021] [Indexed: 11/21/2022]
Abstract
In this study, environmentally friendly bionanocomposite films were prepared by incorporating phlorotannins from Sargassum (PS) into konjac glucomannan (KGM)/cotton cellulose nanocrystals (CNC) composites. The effects of different concentrations of PS (5%, 9%, 13%, and 17%, w/w) on the microstructure, physical properties, antioxidant and antibacterial activities of the resultant bionanocomposite films were evaluated. The results of scanning electron microscopy, X-ray diffraction, and Fourier-transform infrared spectra showed that PS was well compatible with the KGM/CNC composites matrix, which led to form a compact and uniform structure of the films. Thermogravimetric analysis and differential scanning calorimetry demonstrated that incorporating PS improved the heat stability of KGM/CNC bionanocomposite films. And addition of the appropriate amount of PS improved the mechanical and water-vapor barrier-related properties of the bionanocomposite film. For instance, with 9% PS, the tensile strength of the KGM/CNC/PS bionanocomposite film increased by 33.9%, and the water-vapor transmittance decreased by 41.67% compared to that of the KGM/CNC films. Moreover, the addition of PS endowed the KGM/CNC film with excellent antioxidant and antibacterial properties. Therefore, KGM/CNC/PS bionanocomposite films have great potential to be applicated as active packaging in the food packaging industry.
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Affiliation(s)
- Zhiqin Wu
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Cailing Tong
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Jiaxuan Zhang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Jishuai Sun
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Haixin Jiang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Mengxia Duan
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Chengrong Wen
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China.
| | - Chunhua Wu
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; Engineering Research Centre of Fujian-Taiwan Special Marine Food Processing and Nutrition, Ministry of Education, Fuzhou, Fujian 350002, China; Key Laboratory of Marine Biotechnology of Fujian Province, Institute of Oceanology, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China.
| | - Jie Pang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; Engineering Research Centre of Fujian-Taiwan Special Marine Food Processing and Nutrition, Ministry of Education, Fuzhou, Fujian 350002, China; Key Laboratory of Marine Biotechnology of Fujian Province, Institute of Oceanology, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China.
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21
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Tong C, Wang Y, Han WD. [Structural optimization and prospect of chimeric antigen receptor T cells]. Zhonghua Xue Ye Xue Za Zhi 2021; 42:771-777. [PMID: 34753236 PMCID: PMC8607033 DOI: 10.3760/cma.j.issn.0253-2727.2021.09.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- C Tong
- The First Medical Center, The Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - Y Wang
- The First Medical Center, The Chinese People's Liberation Army General Hospital, Beijing 100853, China
| | - W D Han
- The First Medical Center, The Chinese People's Liberation Army General Hospital, Beijing 100853, China
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Duan M, Yu S, Sun J, Jiang H, Zhao J, Tong C, Hu Y, Pang J, Wu C. Development and characterization of electrospun nanofibers based on pullulan/chitin nanofibers containing curcumin and anthocyanins for active-intelligent food packaging. Int J Biol Macromol 2021; 187:332-340. [PMID: 34303741 DOI: 10.1016/j.ijbiomac.2021.07.140] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 07/20/2021] [Accepted: 07/20/2021] [Indexed: 12/13/2022]
Abstract
An electrospun nanofiber based on pullulan/chitin nanofibers (PCN) containing curcumin (CR) and anthocyanins (ATH) was developed using an electrospinning technique for active-intelligent food packaging. The results of scanning electron microscopy and attenuated total reflection Fourier transform infrared spectroscopy indicated that CR and ATH were successfully immobilized on the film-forming substrate based on PCN. The physical and chemical properties of nanofibers with no colorant, a single colorant, and double colorants were compared. The nanofiber containing ATH and CR (PCN/CR/ATH) had stronger antioxidant and antimicrobial activities than those of nanofibers containing CR (PCN/CR) or ATH (PCN/ATH). With respect to pH sensitivity, the color of the PCN/CR nanofibers did not change obviously, but the color of the PCN/ATH and PCN/CR/ATH nanofibers changed significantly with the change in pH. Furthermore, the PCN/CR/ATH nanofibers clearly changed color with the progressive spoilage of Plectorhynchus cinctus at room temperature. Therefore, the electrospun PCN/CR/ATH nanofiber have great application potential in active-intelligent food packaging.
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Affiliation(s)
- Mengxia Duan
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; Key Laboratory of Marine Biotechnology of Fujian Province, Institute of Oceanology, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Shan Yu
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Jishuai Sun
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Haixin Jiang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Jianbo Zhao
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Cailing Tong
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
| | - Yaqin Hu
- College of Food Science and Technology, Hainan Tropical Ocean University, Sanya 572022, China.
| | - Jie Pang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; Engineering Research Centre of Fujian-Taiwan Special Marine Food Processing and Nutrition, Ministry of Education, Fuzhou, Fujian 350002, China; Key Laboratory of Marine Biotechnology of Fujian Province, Institute of Oceanology, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China.
| | - Chunhua Wu
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China; Engineering Research Centre of Fujian-Taiwan Special Marine Food Processing and Nutrition, Ministry of Education, Fuzhou, Fujian 350002, China; Key Laboratory of Marine Biotechnology of Fujian Province, Institute of Oceanology, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China.
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Reising MM, Tong C, Harris B, Toohey-Kurth KL, Crossley B, Mulrooney D, Tallmadge RL, Schumann KR, Lock AB, Loiacono CM. A review of guidelines for evaluating a minor modification to a validated assay. REV SCI TECH OIE 2021; 40:217-226. [PMID: 34140729 DOI: 10.20506/rst.40.1.3219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Any modification to a validated assay must be evaluated in terms of the impact on the assay's performance characteristics and whether the assay remains fit for the intended purpose. The comparison is referred to as a 'method comparison', 'method comparability', 'method change', or 'comparative validation'. This review presents recommendations and examples of studies found in the current literature as a means of assessing minor modifications. In addition, the authors discuss common statistical approaches used for these comparisons.
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Garreis R, Knothe A, Tong C, Eich M, Gold C, Watanabe K, Taniguchi T, Fal'ko V, Ihn T, Ensslin K, Kurzmann A. Shell Filling and Trigonal Warping in Graphene Quantum Dots. Phys Rev Lett 2021; 126:147703. [PMID: 33891439 DOI: 10.1103/physrevlett.126.147703] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 03/11/2021] [Indexed: 06/12/2023]
Abstract
Transport measurements through a few-electron circular quantum dot in bilayer graphene display bunching of the conductance resonances in groups of four, eight, and twelve. This is in accordance with the spin and valley degeneracies in bilayer graphene and an additional threefold "minivalley degeneracy" caused by trigonal warping. For small electron numbers, implying a small dot size and a small displacement field, a two-dimensional s shell and then a p shell are successively filled with four and eight electrons, respectively. For electron numbers larger than 12, as the dot size and the displacement field increase, the single-particle ground state evolves into a threefold degenerate minivalley ground state. A transition between these regimes is observed in our measurements and can be described by band-structure calculations. Measurements in the magnetic field confirm Hund's second rule for spin filling of the quantum dot levels, emphasizing the importance of exchange interaction effects.
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Affiliation(s)
- R Garreis
- ETH Zurich (Swiss Federal Institute of Technology in Zurich), 8093 Zurich, Switzerland
| | - A Knothe
- National Graphene Institute, University of Manchester, Manchester M13 9PL, United Kingdom
| | - C Tong
- ETH Zurich (Swiss Federal Institute of Technology in Zurich), 8093 Zurich, Switzerland
| | - M Eich
- ETH Zurich (Swiss Federal Institute of Technology in Zurich), 8093 Zurich, Switzerland
| | - C Gold
- ETH Zurich (Swiss Federal Institute of Technology in Zurich), 8093 Zurich, Switzerland
| | - K Watanabe
- National Institute for Material Science, 1-1 Namiki, Tsukuba 305-0044, Japan
| | - T Taniguchi
- National Institute for Material Science, 1-1 Namiki, Tsukuba 305-0044, Japan
| | - V Fal'ko
- National Graphene Institute, University of Manchester, Manchester M13 9PL, United Kingdom
- Henry Royce Institute for Advanced Materials, M13 9PL, Manchester, United Kingdom
| | - T Ihn
- ETH Zurich (Swiss Federal Institute of Technology in Zurich), 8093 Zurich, Switzerland
| | - K Ensslin
- ETH Zurich (Swiss Federal Institute of Technology in Zurich), 8093 Zurich, Switzerland
| | - A Kurzmann
- ETH Zurich (Swiss Federal Institute of Technology in Zurich), 8093 Zurich, Switzerland
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Sun J, Jiang H, Wu H, Tong C, Pang J, Wu C. Multifunctional bionanocomposite films based on konjac glucomannan/chitosan with nano-ZnO and mulberry anthocyanin extract for active food packaging. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2020.105942] [Citation(s) in RCA: 92] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Tong C, Wu Z, Sun J, Lin L, Wang L, Guo Y, Huang Z, Wu C, Pang J. Effect of carboxylation cellulose nanocrystal and grape peel extracts on the physical, mechanical and antioxidant properties of konjac glucomannan films. Int J Biol Macromol 2020; 156:874-884. [DOI: 10.1016/j.ijbiomac.2020.04.051] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Revised: 03/08/2020] [Accepted: 04/06/2020] [Indexed: 12/28/2022]
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Chen X, Hong S, Hong F, Yang B, Tong C, Zhang J. Mechanical emulsification of lipoaspirate by different Luer-Lok connector changes the viability of adipose derived stem cells in Nanofat. J Plast Surg Hand Surg 2020; 54:344-351. [PMID: 32615053 DOI: 10.1080/2000656x.2020.1781138] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Nanofat grafting is a fat transfer procedure that uses a thin needle to smooth out wrinkles, thereby achieving the goal of skin rejuvenation. The Luer-Lok connector is one of the most common methods for obtaining Nanofat. In the present study, we compared three different Luer-Lok connectors (2.0 mm, 1.5 mm and 1.1 mm in diameter) in terms of their impact on the viability of adipose-derived stem cells (ADSCs) to determine the optimal size of the connector for efficient Nanofat grafting. We observed that a smaller diameter of the Luer-Lok connector created a higher mechanical shear force, which broke more fat cells during the emulsifying procedure, thereby reducing the viability of ADSCs from the stromal vascular fraction (SVF). Nanofat obtained from the 2-mm Luer-Lok connector had a better effect on skin rejuvenation than the 1.5-mm and 1.1-mm connectors. Therefore, this study presents an advance in the simple procedure of preparing Nanofat based on a previous technique and provides evidence that a procedure associated with less trauma may be a better choice.
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Affiliation(s)
- Xiaohui Chen
- Division of Plastic Surgery, Zhongshan Hospital Xiamen University, Xiamen, PR China
| | - Suzhuang Hong
- Division of Plastic Surgery, Zhongshan Hospital Xiamen University, Xiamen, PR China
| | - Fan Hong
- Division of Plastic Surgery, Zhongshan Hospital Xiamen University, Xiamen, PR China
| | - Bocheng Yang
- Division of Plastic Surgery, Zhongshan Hospital Xiamen University, Xiamen, PR China
| | - Cailing Tong
- Biotechcomer (Xiamen) Science and Technology Ltd, Xiamen, PR China
| | - Jingjing Zhang
- Division of Plastic Surgery, Zhongshan Hospital Xiamen University, Xiamen, PR China
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Qi H, Luo X, Zheng Y, Zhang H, Li J, Zou L, Feng L, Chen D, Shi Y, Tong C, Baker PN. Safe delivery for pregnancies affected by COVID-19. BJOG 2020; 127:927-929. [PMID: 32219995 DOI: 10.1111/1471-0528.16231] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/23/2020] [Indexed: 01/30/2023]
Affiliation(s)
- H Qi
- Department of Obstetrics and Gynaecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - X Luo
- Department of Obstetrics and Gynaecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Y Zheng
- Department of Stem Cell Transplantation and Cell Therapy, MD Anderson Cancer Center, Houston, Texas, USA
| | - H Zhang
- Department of Obstetrics and Gynaecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - J Li
- Department of Obstetrics and Gynaecology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - L Zou
- Department of Obstetrics and Gynaecology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - L Feng
- Department of Obstetrics and Gynaecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - D Chen
- Department of Obstetrics and Gynaecology, Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Y Shi
- Department of Neonatology, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - C Tong
- Department of Obstetrics and Gynaecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - P N Baker
- College of Life Sciences, University of Leicester, Leicester, UK
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Wu C, Li Y, Sun J, Lu Y, Tong C, Wang L, Yan Z, Pang J. Novel konjac glucomannan films with oxidized chitin nanocrystals immobilized red cabbage anthocyanins for intelligent food packaging. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2019.105245] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Yu R, So MC, Tong C, Ho F, Woo J. Older Adults' Perspective towards Participation in a Multicomponent Frailty Prevention Program: A Qualitative Study. J Nutr Health Aging 2020; 24:758-764. [PMID: 32744573 DOI: 10.1007/s12603-020-1369-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
OBJECTIVES This study aimed to explore pre-frail and frail older Chinese people's perspectives on a multi-component, group-based frailty prevention program in Hong Kong, along with their views regarding factors determining participation and sustainability of such program. DESIGN Seven focus groups were conducted. SETTING Community elderly centres. PARTICIPANTS A total of 38 community-dwelling older people aged 54 - 84 (mean age, 64.9 years; female, 58%; married, 68%; retired, 97%) screened with pre-frailty or frailty completing a 12-week multi-component (involving physical, cognitive, and social activities), group-based frailty prevention program were interviewed. MEASUREMENTS Thematic analysis was conducted. RESULTS Using thematic analysis, perceived health benefits, peer support and social networking were identified as key motivators concerning intention to participate in the frailty prevention program; whereas perceived health benefits, socializing, sense of connectedness, expert guidance and sense of dignity were identified as key motivators concerning program adherence. CONCLUSION Majority of participants provided positive feedbacks about the multi-component intervention program in regards to their physical health, psychological well-being and social life. These findings highlighted several important factors for consideration in future design of frailty interventions regarding the needs of pre-frail and frail older adults, which could help to motivate and sustain their participation in community-based frailty prevention programs.
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Affiliation(s)
- R Yu
- Ruby Yu, Department of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, SAR, China, Tel: (852) 3943 5142, Fax: (852) 2637 9215, E-mail:
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Kurzmann A, Eich M, Overweg H, Mangold M, Herman F, Rickhaus P, Pisoni R, Lee Y, Garreis R, Tong C, Watanabe K, Taniguchi T, Ensslin K, Ihn T. Excited States in Bilayer Graphene Quantum Dots. Phys Rev Lett 2019; 123:026803. [PMID: 31386494 DOI: 10.1103/physrevlett.123.026803] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Indexed: 05/21/2023]
Abstract
We report ground- and excited-state transport through an electrostatically defined few-hole quantum dot in bilayer graphene in both parallel and perpendicular applied magnetic fields. A remarkably clear level scheme for the two-particle spectra is found by analyzing finite bias spectroscopy data within a two-particle model including spin and valley degrees of freedom. We identify the two-hole ground state to be a spin-triplet and valley-singlet state. This spin alignment can be seen as Hund's rule for a valley-degenerate system, which is fundamentally different from quantum dots in carbon nanotubes, where the two-particle ground state is a spin-singlet state. The spin-singlet excited states are found to be valley-triplet states by tilting the magnetic field with respect to the sample plane. We quantify the exchange energy to be 0.35 meV and measure a valley and spin g factor of 36 and 2, respectively.
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Affiliation(s)
- A Kurzmann
- Solid State Physics Laboratory, ETH Zurich, CH-8093 Zurich, Switzerland
| | - M Eich
- Solid State Physics Laboratory, ETH Zurich, CH-8093 Zurich, Switzerland
| | - H Overweg
- Solid State Physics Laboratory, ETH Zurich, CH-8093 Zurich, Switzerland
| | - M Mangold
- Solid State Physics Laboratory, ETH Zurich, CH-8093 Zurich, Switzerland
| | - F Herman
- Solid State Physics Laboratory, ETH Zurich, CH-8093 Zurich, Switzerland
| | - P Rickhaus
- Solid State Physics Laboratory, ETH Zurich, CH-8093 Zurich, Switzerland
| | - R Pisoni
- Solid State Physics Laboratory, ETH Zurich, CH-8093 Zurich, Switzerland
| | - Y Lee
- Solid State Physics Laboratory, ETH Zurich, CH-8093 Zurich, Switzerland
| | - R Garreis
- Solid State Physics Laboratory, ETH Zurich, CH-8093 Zurich, Switzerland
| | - C Tong
- Solid State Physics Laboratory, ETH Zurich, CH-8093 Zurich, Switzerland
| | - K Watanabe
- National Institute for Material Science, 1-1 Namiki, Tsukuba 305-0044, Japan
| | - T Taniguchi
- National Institute for Material Science, 1-1 Namiki, Tsukuba 305-0044, Japan
| | - K Ensslin
- Solid State Physics Laboratory, ETH Zurich, CH-8093 Zurich, Switzerland
| | - T Ihn
- Solid State Physics Laboratory, ETH Zurich, CH-8093 Zurich, Switzerland
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Tong C, Li C, Xie B, Li M, Li X, Qi Z, Xia J. Generation of bioartificial hearts using decellularized scaffolds and mixed cells. Biomed Eng Online 2019; 18:71. [PMID: 31164131 PMCID: PMC6549274 DOI: 10.1186/s12938-019-0691-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 05/27/2019] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Patients with end-stage heart failure must receive treatment to recover cardiac function, and the current primary therapy, heart transplantation, is plagued by the limited supply of donor hearts. Bioengineered artificial hearts generated by seeding of cells on decellularized scaffolds have been suggested as an alternative source for transplantation. This study aimed to develop a tissue-engineered heart with lower immunogenicity and functional similarity to a physiological heart that can be used for heart transplantation. MATERIALS AND METHODS We used sodium dodecyl sulfate (SDS) to decellularize cardiac tissue to obtain a decellularized scaffold. Mesenchymal stem cells (MSCs) were isolated from rat bone marrow and identified by flow cytometric labeling of their surface markers. At the same time, the multi-directional differentiation of MSCs was analyzed. The MSCs, endothelial cells, and cardiomyocytes were allowed to adhere to the decellularized scaffold during perfusion, and the function of tissue-engineered heart was analyzed by immunohistochemistry and electrocardiogram. RESULTS MSCs, isolated from rats differentiated into cardiomyocytes, were seeded along with primary rat cardiomyocytes and endothelial cells onto decellularized rat heart scaffolds. We first confirmed the pluripotency of the MSCs, performed immunostaining against cardiac markers expressed by MSC-derived cardiomyocytes, and completed surface antigen profiling of MSC-derived endothelial cells. After cell seeding and culture, we analyzed the performance of the bioartificial heart by electrocardiography but found that the bioartificial heart exhibited abnormal electrical activity. The results indicated that the tissue-engineered heart lacked some cells necessary for the conduction of electrical current, causing deficient conduction function compared to the normal heart. CONCLUSION Our study suggests that MSCs derived from rats may be useful in the generation of a bioartificial heart, although technical challenges remain with regard to generating a fully functional bioartificial heart.
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Affiliation(s)
- Cailing Tong
- School of Life Science, Xiamen University, Xiamen, 361102 Fujian China
- Organ Transplantation Institute of Xiamen University, Fujian Provincial Key Laboratory of Organ and Tissue Regeneration, School of Medicine, Xiamen University, Xiamen, 361102 Fujian China
| | - Cheng Li
- Organ Transplantation Institute of Xiamen University, Fujian Provincial Key Laboratory of Organ and Tissue Regeneration, School of Medicine, Xiamen University, Xiamen, 361102 Fujian China
| | - Baiyi Xie
- Organ Transplantation Institute of Xiamen University, Fujian Provincial Key Laboratory of Organ and Tissue Regeneration, School of Medicine, Xiamen University, Xiamen, 361102 Fujian China
| | - Minghui Li
- Organ Transplantation Institute of Xiamen University, Fujian Provincial Key Laboratory of Organ and Tissue Regeneration, School of Medicine, Xiamen University, Xiamen, 361102 Fujian China
| | - Xianguo Li
- Organ Transplantation Institute of Xiamen University, Fujian Provincial Key Laboratory of Organ and Tissue Regeneration, School of Medicine, Xiamen University, Xiamen, 361102 Fujian China
| | - Zhongquan Qi
- School of Medicine, Guangxi University, Nanning, 530004 Guangxi China
| | - Junjie Xia
- Organ Transplantation Institute of Xiamen University, Fujian Provincial Key Laboratory of Organ and Tissue Regeneration, School of Medicine, Xiamen University, Xiamen, 361102 Fujian China
- School of Medicine, Guangxi University, Nanning, 530004 Guangxi China
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Tong C, Xia J, Xie B, Li M, Du F, Li C, Li Y, Shan Z, Qi Z. Immunogenicity analysis of decellularized cardiac scaffolds after transplantation into rats. Regen Med 2019; 14:447-464. [PMID: 31070505 DOI: 10.2217/rme-2018-0139] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Aim: Cardiac extracellular matrix (cECM) scaffolds are promising biomaterials for clinical applications. Our aim is to determine the immunogenicity of decellularized scaffolds from different sources for use as artificial organs during organ transplantation. Materials & methods: We transplanted Lewis rats with syngeneic (Lewis rat cECM), allogeneic (BN rat cECM) or xenogeneic (hamster cECM) decellularized cardiac scaffolds. Acute vascular and cellular rejection was quantified by immunohistochemistry and immune cell infiltration. Results: BN rat and hamster hearts were rejected following transplantation. BN and hamster cECMs had similarly low immunogenicity compared with Lewis rat cECMs and did not lead to increased rejection. Conclusion: We found that scaffolds from all sources did not induce vascular or cellular rejection and exhibited low immunogenicity.
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Affiliation(s)
- Cailing Tong
- School of Life Science, Xiamen University, Fujian, 361102, China.,Organ Transplantation Institute, Medical College, Xiamen University, Fujian, 361102, China.,Key Laboratory of Organ & Tissue Regeneration, Fujian Province, Fujian, 61102, China
| | - Junjie Xia
- Organ Transplantation Institute, Medical College, Xiamen University, Fujian, 361102, China.,Key Laboratory of Organ & Tissue Regeneration, Fujian Province, Fujian, 61102, China
| | - Baiyi Xie
- Organ Transplantation Institute, Medical College, Xiamen University, Fujian, 361102, China.,Key Laboratory of Organ & Tissue Regeneration, Fujian Province, Fujian, 61102, China
| | - Minghui Li
- Organ Transplantation Institute, Medical College, Xiamen University, Fujian, 361102, China.,Key Laboratory of Organ & Tissue Regeneration, Fujian Province, Fujian, 61102, China
| | - Feifei Du
- Organ Transplantation Institute, Medical College, Xiamen University, Fujian, 361102, China.,Key Laboratory of Organ & Tissue Regeneration, Fujian Province, Fujian, 61102, China
| | - Cheng Li
- Organ Transplantation Institute, Medical College, Xiamen University, Fujian, 361102, China.,Key Laboratory of Organ & Tissue Regeneration, Fujian Province, Fujian, 61102, China
| | - Yaguang Li
- Organ Transplantation Institute, Medical College, Xiamen University, Fujian, 361102, China.,Key Laboratory of Organ & Tissue Regeneration, Fujian Province, Fujian, 61102, China
| | - Zhonggui Shan
- Department of Cardiac Surgery, The First Affiliated Hospital of Xiamen University, Fujian, 361003, China
| | - Zhongquan Qi
- Organ Transplantation Institute, Medical College, Xiamen University, Fujian, 361102, China.,Key Laboratory of Organ & Tissue Regeneration, Fujian Province, Fujian, 61102, China
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Wu C, Li Y, Du Y, Wang L, Tong C, Hu Y, Pang J, Yan Z. Preparation and characterization of konjac glucomannan-based bionanocomposite film for active food packaging. Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2018.11.001] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Wang L, Lin L, Chen X, Tong C, Pang J. Synthesis and characteristics of konjac glucomannan films incorporated with functionalized microcrystalline cellulose. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2018.12.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Lacambra M, Loong H, To K, Feng X, Taylor G, Pleasance E, Laskin J, Marra M, Griffith J, Yeung H, Wong KC, Chow C, Kumta S, Ng W, Tse T, Tong C, Ng T. FUS-NFATc2 sarcoma of bone, a novel molecular entity with aggressive behavior: Clinical and molecular pathology findings of two cases. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy443.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Tong C, Danylyshyn T, Kerr S, Swiggum E. USE OF THE BIOMARKER NT-PROBNP TO TRIAGE PATIENTS INTO MULTIDISCIPLINARY HEART FUNCTION CLINIC: SINGLE CENTRE EXPERIENCE WITH CANADIAN APPLICABILITY. Can J Cardiol 2018. [DOI: 10.1016/j.cjca.2018.07.141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Feldman-Stewart D, Tong C, Brundage MD. Evaluation of a widely available patient decision aid for the treatment of prostate cancer. Patient Educ Couns 2018; 101:1761-1766. [PMID: 29729858 DOI: 10.1016/j.pec.2018.04.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 04/20/2018] [Accepted: 04/23/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND The effectiveness of patient decision aids (PtDA) is rarely evaluated in the "real world" where patients vary in their preferences related to decision support. PURPOSE To determine how Canadian patients use and evaluate our widely available PtDA for early-stage prostate cancer treatment with its 8 components. METHODS Google Analytics and online tracking provided usage information. A Usability Assessment (UA) following the PtDA provided evaluation data; main outcomes [scale: 1 (strongly disagree) to 5 (strongly agree)] were (a) the aid was helpful, and (b) I would recommend it to other patients. RESULTS Usage data were from 993 users, and UAs from 168 of them. Mean "helpfulness" score was 4.1(5 max); mean "recommend" score was 4.2 (5 max). For each PtDA component, there was no significant difference on each main outcome, between those who used it and those who did not. CONCLUSION Overall, patients who completed the UA rated the PtDA as helpful and would recommend it to other patients. The widely available PtDA accommodated expected variation in decision support desired, and helpfulness was not associated with variation in components used. PRACTICE IMPLICATION The internet can be an effective medium for making appropriately designed decision support widely available to prostate cancer patients.
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Affiliation(s)
- D Feldman-Stewart
- Division of Cancer Care and Epidemiology, Cancer Research Institute, Queen's University Kingston, ON, Canada.
| | - C Tong
- Division of Cancer Care and Epidemiology, Cancer Research Institute, Queen's University Kingston, ON, Canada
| | - M D Brundage
- Division of Cancer Care and Epidemiology, Cancer Research Institute, Queen's University Kingston, ON, Canada
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Yang L, Zhong Z, Tong C, Jia H, Liu Y, Chen G. Single-Molecule Mechanical Folding and Unfolding of RNA Hairpins: Effects of Single A-U to A·C Pair Substitutions and Single Proton Binding and Implications for mRNA Structure-Induced -1 Ribosomal Frameshifting. J Am Chem Soc 2018; 140:8172-8184. [PMID: 29884019 DOI: 10.1021/jacs.8b02970] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
A wobble A·C pair can be protonated at near physiological pH to form a more stable wobble A+·C pair. Here, we constructed an RNA hairpin (rHP) and three mutants with one A-U base pair substituted with an A·C mismatch on the top (near the loop, U22C), middle (U25C), and bottom (U29C) positions of the stem, respectively. Our results on single-molecule mechanical (un)folding using optical tweezers reveal the destabilization effect of A-U to A·C pair substitution and protonation-dependent enhancement of mechanical stability facilitated through an increased folding rate, or decreased unfolding rate, or both. Our data show that protonation may occur rapidly upon the formation of an apparent mechanical folding transition state. Furthermore, we measured the bulk -1 ribosomal frameshifting efficiencies of the hairpins by a cell-free translation assay. For the mRNA hairpins studied, -1 frameshifting efficiency correlates with mechanical unfolding force at equilibrium and folding rate at around 15 pN. U29C has a frameshifting efficiency similar to that of rHP (∼2%). Accordingly, the bottom 2-4 base pairs of U29C may not form under a stretching force at pH 7.3, which is consistent with the fact that the bottom base pairs of the hairpins may be disrupted by ribosome at the slippery site. U22C and U25C have a similar frameshifting efficiency (∼1%), indicating that both unfolding and folding rates of an mRNA hairpin in a crowded environment may affect frameshifting. Our data indicate that mechanical (un)folding of RNA hairpins may mimic how mRNAs unfold and fold in the presence of translating ribosomes.
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Affiliation(s)
- Lixia Yang
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences , Nanyang Technological University , 21 Nanyang Link , Singapore 637371
| | - Zhensheng Zhong
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences , Nanyang Technological University , 21 Nanyang Link , Singapore 637371.,School of Physics, and State Key Laboratory of Optoelectronic Materials and Technologies , Sun Yat-sen University , Guangzhou 510275 , People's Republic of China
| | - Cailing Tong
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences , Nanyang Technological University , 21 Nanyang Link , Singapore 637371
| | - Huan Jia
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences , Nanyang Technological University , 21 Nanyang Link , Singapore 637371
| | - Yiran Liu
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences , Nanyang Technological University , 21 Nanyang Link , Singapore 637371
| | - Gang Chen
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences , Nanyang Technological University , 21 Nanyang Link , Singapore 637371
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Guo Z, Tong C, Doucet Y, Abaci H, Jackow J, Zeng W, Hansen C, Lumpkin E, Christiano A. 1446 Atopic cytokines IL4/13 perturb iPSC-derived itch-specific sensory neurons. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.1464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Kaufman A, Poonia S, Cazzador D, Kohanski M, Kuan E, Tong C, Borsetto D, Emanuelli E, Palmer J, Adappa N. Disorders Involving a Persistent Craniopharyngeal Canal: A Case Series. Skull Base Surg 2018. [DOI: 10.1055/s-0038-1633628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- A. Kaufman
- Department of Otorhinolaryngology-Head and Neck Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States
| | - S. Poonia
- Department of Otorhinolaryngology-Head and Neck Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States
| | - D. Cazzador
- Otorhinolaryngology Unit, Department of Neurosciences, University of Padua, Padua, Italy
| | - M. Kohanski
- Department of Otorhinolaryngology-Head and Neck Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States
| | - E. Kuan
- Department of Otorhinolaryngology-Head and Neck Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States
| | - C. Tong
- Department of Otorhinolaryngology-Head and Neck Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States
| | - D. Borsetto
- Otorhinolaryngology Unit, Department of Neurosciences, University of Padua, Padua, Italy
| | - E. Emanuelli
- Otorhinolaryngology Unit, Department of Neurosciences, University of Padua, Padua, Italy
| | - J. Palmer
- Department of Otorhinolaryngology-Head and Neck Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States
| | - N. Adappa
- Department of Otorhinolaryngology-Head and Neck Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States
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Watier-Grillot S, Boni M, Tong C, Renoult PA, Fournier A, Joie L, Mérens A, Chesnay A, Perelle S, Fraisse A, Ambert-Balay K, Chal D, Larréché S, Michel R, de Santi VP. Challenging Investigation of a Norovirus Foodborne Disease Outbreak During a Military Deployment in Central African Republic. Food Environ Virol 2017; 9:498-501. [PMID: 28674933 DOI: 10.1007/s12560-017-9312-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [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: 05/24/2017] [Accepted: 06/29/2017] [Indexed: 06/07/2023]
Abstract
In January 2016, a large-scale outbreak of acute gastroenteritis was reported among French armed forces deployed in the Central African Republic. Challenging investigations, conducted from France, made it possible to identify a norovirus genogroup II in both stool and food samples, confirming a norovirus foodborne disease outbreak. Infected food handler management is discussed.
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Affiliation(s)
| | - M Boni
- French Ministry of Defense Joint Logistics and Supply Agency, Pantin, France
| | - C Tong
- French Armed Forces Center for Epidemiology and Public Health (CESPA), Marseille, France
| | - P-A Renoult
- French Military Health Service, Montauban-Agen Medical Unit, Montauban, France
| | - A Fournier
- French Military Health Service, Montauban-Agen Medical Unit, Montauban, France
| | - L Joie
- Regional Department of the French Military Health Service, Toulon, France
| | - A Mérens
- Bégin Military Teaching Hospital, Paris, France
| | - A Chesnay
- French Armed Forces Food Laboratory, Angers, France
| | - S Perelle
- French Agency for Food, Environmental and Occupational Health and Safety (ANSES), Laboratory for Food Safety, 94700, Maisons-Alfort, France
| | - A Fraisse
- French Agency for Food, Environmental and Occupational Health and Safety (ANSES), Laboratory for Food Safety, 94700, Maisons-Alfort, France
| | - K Ambert-Balay
- National Reference Center for Gastroenteritis Viruses, F. Mitterrand Teaching Hospital, Dijon, France
- AgroSup Dijon, PAM UMR A 02.102, 21000, Dijon, France
| | - D Chal
- Military Veterinary Unit, Lyon, France
| | - S Larréché
- Bégin Military Teaching Hospital, Paris, France
| | - R Michel
- French Armed Forces Center for Epidemiology and Public Health (CESPA), Marseille, France
- Val-de-Grâce Military Health Service Academy, Paris, France
| | - V Pommier de Santi
- French Armed Forces Center for Epidemiology and Public Health (CESPA), Marseille, France
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43
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Puah RY, Jia H, Maraswami M, Toh DFK, Ero R, Yang L, Patil KM, Ong AAL, Krishna MS, Sun R, Tong C, Huang M, Chen X, Loh TP, Gao YG, Liu DX, Chen G. Selective Binding to mRNA Duplex Regions by Chemically Modified Peptide Nucleic Acids Stimulates Ribosomal Frameshifting. Biochemistry 2017; 57:149-159. [PMID: 29116759 DOI: 10.1021/acs.biochem.7b00744] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Minus-one programmed ribosomal frameshifting (-1 PRF) allows the precise maintenance of the ratio between viral proteins and is involved in the regulation of the half-lives of cellular mRNAs. Minus-one ribosomal frameshifting is activated by several stimulatory elements such as a heptameric slippery sequence (X XXY YYZ) and an mRNA secondary structure (hairpin or pseudoknot) that is positioned 2-8 nucleotides downstream from the slippery site. Upon -1 RF, the ribosomal reading frame is shifted from the normal zero frame to the -1 frame with the heptameric slippery sequence decoded as XXX YYY Z instead of X XXY YYZ. Our research group has developed chemically modified peptide nucleic acid (PNA) L and Q monomers to recognize G-C and C-G Watson-Crick base pairs, respectively, through major-groove parallel PNA·RNA-RNA triplex formation. L- and Q-incorporated PNAs show selective binding to double-stranded RNAs (dsRNAs) over single-stranded RNAs (ssRNAs). The sequence specificity and structural selectivity of L- and Q-modified PNAs may allow the precise targeting of desired viral and cellular RNA structures, and thus may serve as valuable biological tools for mechanistic studies and potential therapeutics for fighting diseases. Here, for the first time, we demonstrate by cell-free in vitro translation assays using rabbit reticulocyte lysate that the dsRNA-specific chemically modified PNAs targeting model mRNA hairpins stimulate -1 RF (from 2% to 32%). An unmodified control PNA, however, shows nonspecific inhibition of translation. Our results suggest that the modified dsRNA-binding PNAs may be advantageous for targeting structured RNAs.
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Affiliation(s)
| | | | | | | | - Rya Ero
- School of Biological Sciences, Nanyang Technological University , 60 Nanyang Drive, Singapore 637551
| | | | | | | | | | | | | | - Mei Huang
- School of Biological Sciences, Nanyang Technological University , 60 Nanyang Drive, Singapore 637551
| | | | | | - Yong-Gui Gao
- School of Biological Sciences, Nanyang Technological University , 60 Nanyang Drive, Singapore 637551
| | - Ding Xiang Liu
- School of Biological Sciences, Nanyang Technological University , 60 Nanyang Drive, Singapore 637551.,Guangdong Province Key Laboratory Microbial Signals & Disease Co, and Integrative Microbiology Research Centre, South China Agricultural University , Guangzhou 510642, Guangdong, People's Republic of China
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44
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Zhang H, Tong C. ELDERLY ANESTHESIA AND ANALGESIA. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.4506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- H. Zhang
- Chinese PLA General Hospital, Beijing, China
| | - C. Tong
- Wake Forest Baptist Medical Center, Winston-Salem
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45
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Guo Z, Tong C, Doucet Y, Abaci H, Jackow J, Lumpkin E, Christiano A. 908 Keratinocytes and fibroblasts facilitate maturation of sensory neurons differentiated from human induced pluripotent stem cells. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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46
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Lam P, Cheng S, Lo W, Tong C, Lo K, Lam Y, Leung L, Leung P. Topical application of mesenchymal stem cells for the treatment of chronic wounds- a pilot study. Cytotherapy 2017. [DOI: 10.1016/j.jcyt.2017.02.320] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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47
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Zou M, Bhatia A, Dong H, Jayaprakash P, Guo J, Sahu D, Hou Y, Tsen F, Tong C, O'Brien K, Situ AJ, Schmidt T, Chen M, Ying Q, Ulmer TS, Woodley DT, Li W. Evolutionarily conserved dual lysine motif determines the non-chaperone function of secreted Hsp90alpha in tumour progression. Oncogene 2017; 36:2160-2171. [PMID: 27721406 PMCID: PMC5386837 DOI: 10.1038/onc.2016.375] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 08/30/2016] [Accepted: 09/01/2016] [Indexed: 12/16/2022]
Abstract
Both intracellular and extracellular heat shock protein-90 (Hsp90) family proteins (α and β) have been shown to support tumour progression. The tumour-supporting activity of the intracellular Hsp90 is attributed to their N-terminal ATPase-driven chaperone function. What molecular entity determines the extracellular function of secreted Hsp90 and the distinction between Hsp90α and Hsp90β was unclear. Here we demonstrate that CRISPR/Case9 knocking out Hsp90α nullifies tumour cells' ability to migrate, invade and metastasize without affecting the cell survival and growth. Knocking out Hsp90β leads to tumour cell death. Extracellular supplementation with recombinant Hsp90α, but not Hsp90β, protein recovers tumourigenicity of the Hsp90α-knockout cells. Sequential mutagenesis identifies two evolutionarily conserved lysine residues, lys-270 and lys-277, in the Hsp90α subfamily that determine the extracellular Hsp90α function. Hsp90β subfamily lacks the dual lysine motif and the extracellular function. Substitutions of gly-262 and thr-269 in Hsp90β with lysines convert Hsp90β to a Hsp90α-like protein. Newly constructed monoclonal antibody, 1G6-D7, against the dual lysine region of secreted Hsp90α inhibits both de novo tumour formation and expansion of already formed tumours in mice. This study suggests an alternative therapeutic approach to target Hsp90 in cancer, that is, the tumour-secreted Hsp90α, instead of the intracellular Hsp90α and Hsp90β.
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Affiliation(s)
- M Zou
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - A Bhatia
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - H Dong
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - P Jayaprakash
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - J Guo
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - D Sahu
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - Y Hou
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - F Tsen
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - C Tong
- Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research and Department of Cell and Neurobiology, Los Angeles, CA, USA
| | - K O'Brien
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
| | - A J Situ
- Department of Biochemistry and Molecular Biology and Zilkha Neurogenetic Institute University of Southern California Keck Medical Center, Los Angeles, CA, USA
| | - T Schmidt
- Department of Biochemistry and Molecular Biology and Zilkha Neurogenetic Institute University of Southern California Keck Medical Center, Los Angeles, CA, USA
| | - M Chen
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
- Department of Medical Research, Greater Los Angeles Veterans Affairs Heath Care System, Los Angeles, CA, USA
| | - Q Ying
- Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research and Department of Cell and Neurobiology, Los Angeles, CA, USA
| | - T S Ulmer
- Department of Biochemistry and Molecular Biology and Zilkha Neurogenetic Institute University of Southern California Keck Medical Center, Los Angeles, CA, USA
| | - D T Woodley
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
- Department of Medical Research, Greater Los Angeles Veterans Affairs Heath Care System, Los Angeles, CA, USA
| | - W Li
- Department of Dermatology and the Norris Comprehensive Cancer Center, Los Angeles, CA, USA
- Department of Medical Research, Greater Los Angeles Veterans Affairs Heath Care System, Los Angeles, CA, USA
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48
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Matthews DR, Zinman B, Tong C, Meininger G, Polidori D. Glycaemic efficacy of canagliflozin is largely independent of baseline β-cell function or insulin sensitivity. Diabet Med 2016; 33:1744-1747. [PMID: 26600115 DOI: 10.1111/dme.13033] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - B Zinman
- Luenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada
| | - C Tong
- Janssen Research & Development, LLC, Raritan, NJ, USA
| | - G Meininger
- Janssen Research & Development, LLC, Raritan, NJ, USA
| | - D Polidori
- Janssen Research & Development, LLC, San Diego, CA, USA
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49
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Hazawa M, Lin DC, Handral H, Xu L, Chen Y, Jiang YY, Mayakonda A, Ding LW, Meng X, Sharma A, Samuel S, Movahednia MM, Wong RW, Yang H, Tong C, Koeffler HP. ZNF750 is a lineage-specific tumour suppressor in squamous cell carcinoma. Oncogene 2016; 36:2243-2254. [PMID: 27819679 PMCID: PMC5415641 DOI: 10.1038/onc.2016.377] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2016] [Revised: 08/25/2016] [Accepted: 08/31/2016] [Indexed: 01/06/2023]
Abstract
ZNF750 controls epithelial homeostasis by regulating epidermal-differentiation genes, a role underscored by its pathogenic mutations in esophageal squamous cell cancers (SCCs). However, the precise role of ZNF750 in SCC cell biology remains unclear. In this study, we report that ZNF750 is exclusively deleted, mutated and underexpressed in human SCCs, and low ZNF750 expression is associated with poor survival. Restoration of wildtype, but not mutant ZNF750 protein uniquely inhibited the malignant phenotypes of SCC cells both in vitro and in vivo. Notably, ZNF750 promoted the expression of a long non-coding RNA (TINCR), which mediated both cancer-inhibition and differentiation-induction effects of ZNF750. In addition, ZNF750 potently suppressed cell migration by directly inhibiting the transactivation of LAMC2. Together, our findings characterize ZNF750 as a crucial SCC-specific suppressor and uncover its novel anticancer-associated functions.
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Affiliation(s)
- M Hazawa
- Cancer Science Institute of Singapore, National University of Singapore, Singapore.,Cell-Bionomics Research Unit, Innovative Integrated Bio-Research Core, Institute for Frontier Science Initiative, Kanazawa University, Kanazawa, Japan
| | - D-C Lin
- Cancer Science Institute of Singapore, National University of Singapore, Singapore.,Division of Hematology/Oncology, Cedars-Sinai Medical Center, University of California, Los Angeles School of Medicine, Los Angeles, California, USA
| | - H Handral
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, National University of Singapore, Singapore
| | - L Xu
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - Y Chen
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - Y-Y Jiang
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - A Mayakonda
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - L-W Ding
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - X Meng
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - A Sharma
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - S Samuel
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - M M Movahednia
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, National University of Singapore, Singapore
| | - R W Wong
- Cell-Bionomics Research Unit, Innovative Integrated Bio-Research Core, Institute for Frontier Science Initiative, Kanazawa University, Kanazawa, Japan
| | - H Yang
- Cancer Science Institute of Singapore, National University of Singapore, Singapore
| | - C Tong
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, National University of Singapore, Singapore
| | - H P Koeffler
- Cancer Science Institute of Singapore, National University of Singapore, Singapore.,Division of Hematology/Oncology, Cedars-Sinai Medical Center, University of California, Los Angeles School of Medicine, Los Angeles, California, USA.,National University Cancer Institute, National University Health System and National University of Singapore, Singapore
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Tong C, Cui Z, Sun X, Lei L, Feng X, Sun C, Gu J, Han W. Mannan Derivatives Instruct Dendritic Cells to Induce Th1/Th2 Cells Polarization via Differential Mitogen-Activated Protein Kinase Activation. Scand J Immunol 2016; 83:10-7. [PMID: 26332129 DOI: 10.1111/sji.12369] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Accepted: 08/19/2015] [Indexed: 02/06/2023]
Abstract
Mannan derived from fungal cell walls have potential uses as immunomodulating agents and vaccine adjuvants. Immunization with antigen conjugated to oxidized mannan (OM) or reduced mannan (RM) have induced differential immune responses in mice. Yet, the adjuvant effect and differences in molecular profiles of OM and RM on APCs is unresolved. Here, we investigated the response of mouse bone marrow-derived DCs to OM and RM. OM and RM stimulated DCs to produce differential Th1/Th2-inducing cytokines in vitro. OM and RM-activated DCs stimulated allogeneic T-cell Th1 and Th2 polarization reaction. OM instruct DCs to stimulate Th1 responses via IL-12p70 production, which depends on the phosphorylation of p38, RM barely induce IL-12p70, but IL-10 and IL-4, and magnitude of ERK phosphorylation, which results in a Th2 bias. These findings indicate that OM and RM were potent adjuvant capable of directly initiating DC activation Th1 and Th2 polarization respectively.
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Affiliation(s)
- C Tong
- College of Veterinary Medicine, Jilin University, Changchun, China.,College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang, China
| | - Z Cui
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - X Sun
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - L Lei
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - X Feng
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - C Sun
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - J Gu
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - W Han
- College of Veterinary Medicine, Jilin University, Changchun, China.,Jiangsu Co-innovation Center for the Prevention and Control of important Animal Infectious Disease and Zoonoses, Yangzhou University, Yangzhou, China
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