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Guyon L, Tessier S, Croyal M, Gourdel M, Lafont M, Segeron F, Chabaud L, Gautier H, Weiss P, Gaudin A. Influence of physico-chemical properties of two lipoxin emulsion-loaded hydrogels on pre-polarized macrophages: a comparative analysis. Drug Deliv Transl Res 2024:10.1007/s13346-024-01588-9. [PMID: 38565761 DOI: 10.1007/s13346-024-01588-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/24/2024] [Indexed: 04/04/2024]
Abstract
Inflammation, a crucial defense mechanism, must be rigorously regulated to prevent the onset of chronic inflammation and subsequent tissue damage. Specialized pro resolving mediators (SPMs) such as lipoxin A4 (LXA4) have demonstrated their ability to facilitate the resolution of inflammation by orchestrating a transition of M1 pro-inflammatory macrophages towards an anti-inflammatory M2 phenotype. However, the hydrophobic and chemically labile nature of LXA4 necessitates the development of a delivery system capable of preserving its integrity for clinical applications. In this study, two types of emulsion were formulated using different homogenization processes:mechanical overhead stirrer (MEB for blank Emulsion and MELX for LXA4 loaded-Emulsion) or Luer-lock syringes (SEB for blank Emulsion and SELX for LXA4 loaded-Emulsion)). Following characterization, including size and droplet morphology assessment by microscopy, the encapsulation efficiency (EE) was determined using liquid chromatography-tandem mass spectrometry (LC-MS/MS). To exert control over LXA4 release, these emulsions were embedded within silanized hyaluronic acid hydrogels. A comprehensive evaluation, encompassing gel time, swelling, and degradation profiles under acidic, basic, and neutral conditions, preceded the assessment of LXA4 cumulative release using LC-MS/MS. Physicochemical results indicate that H-MELX (Mechanical overhead stirrer LXA4 Emulsion loaded-Hydrogel) exhibits superior efficiency over H-SELX (Luer-lock syringes LXA4 Emulsion loaded-Hydrogel). While both formulations stimulated pro-inflammatory cytokine secretion and promoted a pro-inflammatory macrophage phenotype, LXA4 emulsion-loaded hydrogels displayed a diminished pro-inflammatory activity compared to blank emulsion-loaded hydrogels. These findings highlight the biological efficacy of LXA4 within both systems, with H-SELX outperforming H-MELX in terms of efficiency. To the best of our knowledge, this is the first successful demonstration of the biological efficacy of LXA4 emulsion-loaded hydrogel systems on macrophage polarization. These versatile H-MELX and H-SELX formulations can be customized to enhance their biological activity making them promising tools to promote the resolution of inflammation in diverse clinical applications.
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Affiliation(s)
- Léna Guyon
- Nantes Université, Oniris CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, F-44000, Nantes, France
| | - Solène Tessier
- Nantes Université, Oniris CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, F-44000, Nantes, France
| | - Mikaël Croyal
- Nantes Université, CNRS, INSERM, l'institut du thorax, Nantes, France
- Nantes Université, CHU Nantes, Inserm CNRS, SFR Santé, Inserm UMS 016, Nantes, France
- CRNH-Ouest Mass Spectrometry Core Facility, Nantes, France
| | - Mathilde Gourdel
- Nantes Université, CNRS, INSERM, l'institut du thorax, Nantes, France
- CRNH-Ouest Mass Spectrometry Core Facility, Nantes, France
| | - Marianne Lafont
- Nantes Université, Oniris CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, F-44000, Nantes, France
| | - Florian Segeron
- Nantes Université, Oniris CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, F-44000, Nantes, France
| | - Lionel Chabaud
- Nantes Université, Oniris CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, F-44000, Nantes, France
- Nantes Université, UFR Sciences Biologiques et Pharmaceutiques, F-44035, Nantes, France
| | - Hélène Gautier
- Nantes Université, Oniris CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, F-44000, Nantes, France
- Nantes Université, UFR Sciences Biologiques et Pharmaceutiques, F-44035, Nantes, France
| | - Pierre Weiss
- Nantes Université, Oniris CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, F-44000, Nantes, France
| | - Alexis Gaudin
- Nantes Université, Oniris CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, F-44000, Nantes, France.
- Department of Endodontics, University of Nantes, 1 place Alexis Ricordeau, 44093 Nantes Cedex 01, Nantes, France.
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Charbonnier B, Weiss P. [Regeneration of dental tissues: Which biomaterials, which prospects?]. Med Sci (Paris) 2024; 40:88-91. [PMID: 38299909 DOI: 10.1051/medsci/2023201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2024] Open
Abstract
Après avoir évoqué l’avenir des biomatériaux de réparation des tissus dentaires calcifiés (émail et dentine) en essayant d’être biomimétique et même de stimuler aux interfaces la régénération dentinaire, nous évoquons dans cet article l’avenir des biomatériaux utilisés pour régénérer les tissus de soutien de la dent, le parodonte qui inclut l’os alvéolaire.
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Affiliation(s)
- Baptiste Charbonnier
- Université de Nantes, Oniris, Inserm UMRS 1229, 1 place Alexis Ricordeau, 44042 Nantes, France
| | - Pierre Weiss
- Université de Nantes, Oniris, Inserm UMRS 1229, 1 place Alexis Ricordeau, 44042 Nantes, France
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Rakic M, Canullo L, Radovanovic S, Tatic Z, Radunovic M, Souedain A, Weiss P, Struillou X, Vojvodic D. Diagnostic value of VEGF in peri-implantitis and its correlation with titanium particles: A controlled clinical study. Dent Mater 2024; 40:28-36. [PMID: 37865576 DOI: 10.1016/j.dental.2023.10.003] [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: 05/19/2023] [Revised: 08/29/2023] [Accepted: 10/05/2023] [Indexed: 10/23/2023]
Abstract
OBJECTIVES VEGF is prototypic marker of neovascularization, repeatedly proposed as intrinsic characteristic of peri-implantitis. This study aimed to assess pattern of VEGF in peri-implantitis, its correlation with titanium particles (TPs) and capacity as respective biomarker. MATERIAL AND METHODS Pathological specificity of VEGF was assessed in peri-implant granulations using immunohistochemistry, periodontal granulations represented Ti-free positive controls. VEGF was correlated to TPs, identified using scanning electron microscopy coupled with dispersive x-ray spectrometry. Diagnostic accuracy, sensitivity and specificity of VEGF were estimated in PICF specimens from peri-implantitis, peri-implant mucositis (PIM) and healthy peri-implant tissues (HI) using machine learning algorithms. RESULTS Peri-implantitis exhibited rich neovascular network with expressed density in contact zones toward neutrophil infiltrates without specific pattern variations around TPs, identified in all peri-implantitis specimens (mean particle size 8.9 ± 24.8 µm2; Ti-mass (%) 0.380 ± 0.163). VEGF was significantly more expressed in peri-implantitis (47,065 ± 24.2) compared to periodontitis (31,14 ± 9.15), and positively correlated with its soluble concentrations in PICF (p = 0.01). VEGF was positively correlated to all clinical endpoints and significantly increased in peri-implantitis compared to both PIM and HI, but despite high specificity (96%), its overall diagnostic capacity was average. Two patient clusters were identified in peri-implantitis, one with 8-fold higher VEGF values compared to HI, and second with lower values comparable to PIM. SIGNIFICANCE VEGF accurately reflects neovascularization in peri-implantitis that was expressed in contact zones toward implant surface without specific histopathological patter variation around TPs. VEGF answered requests for biomarker of peri-implantitis but further research is necessary to decrypt its exact underlying cause.
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Affiliation(s)
- Mia Rakic
- ETEP (Etiology and Therapy of Periodontal Diseases) Research Group, University Complutense of Madrid, Madrid, Spain.
| | - Luigi Canullo
- Department of Surgical Sciences (DISC), University of Genoa, Genova, Italy; Department of Periodontology, University of Bern, Switzerland
| | - Sandro Radovanovic
- Faculty of Organizational Sciences, University of Belgrade, Belgrade, Serbia; Department for Oral Implantology, Military Medical Academy, Belgrade, Serbia
| | - Zoran Tatic
- Department for Oral Implantology, Military Medical Academy, Belgrade, Serbia
| | - Milena Radunovic
- Department of Oral Microbiology, Faculty of Dental Medicine, University of Belgrade, Belgrade, Serbia
| | - Assem Souedain
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, University of Nantes, Department of Periodontology, Faculty of Dental Surgery, France
| | - Pierre Weiss
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, University of Nantes, France
| | - Xavier Struillou
- Department of Periodontology, Faculty of Dental Surgery, University of Nantes, France; Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, University of Nantes, France
| | - Danilo Vojvodic
- Institute for Experimental Medicine, Military Medical Academy, Belgrade, Serbia
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Hachimi Alaoui C, Réthoré G, Weiss P, Fatimi A. Sustainable Biomass Lignin-Based Hydrogels: A Review on Properties, Formulation, and Biomedical Applications. Int J Mol Sci 2023; 24:13493. [PMID: 37686299 PMCID: PMC10487582 DOI: 10.3390/ijms241713493] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 08/27/2023] [Accepted: 08/28/2023] [Indexed: 09/10/2023] Open
Abstract
Different techniques have been developed to overcome the recalcitrant nature of lignocellulosic biomass and extract lignin biopolymer. Lignin has gained considerable interest owing to its attractive properties. These properties may be more beneficial when including lignin in the preparation of highly desired value-added products, including hydrogels. Lignin biopolymer, as one of the three major components of lignocellulosic biomaterials, has attracted significant interest in the biomedical field due to its biocompatibility, biodegradability, and antioxidant and antimicrobial activities. Its valorization by developing new hydrogels has increased in recent years. Furthermore, lignin-based hydrogels have shown great potential for various biomedical applications, and their copolymerization with other polymers and biopolymers further expands their possibilities. In this regard, lignin-based hydrogels can be synthesized by a variety of methods, including but not limited to interpenetrating polymer networks and polymerization, crosslinking copolymerization, crosslinking grafted lignin and monomers, atom transfer radical polymerization, and reversible addition-fragmentation transfer polymerization. As an example, the crosslinking mechanism of lignin-chitosan-poly(vinyl alcohol) (PVA) hydrogel involves active groups of lignin such as hydroxyl, carboxyl, and sulfonic groups that can form hydrogen bonds (with groups in the chemical structures of chitosan and/or PVA) and ionic bonds (with groups in the chemical structures of chitosan and/or PVA). The aim of this review paper is to provide a comprehensive overview of lignin-based hydrogels and their applications, focusing on the preparation and properties of lignin-based hydrogels and the biomedical applications of these hydrogels. In addition, we explore their potential in wound healing, drug delivery systems, and 3D bioprinting, showcasing the unique properties of lignin-based hydrogels that enable their successful utilization in these areas. Finally, we discuss future trends in the field and draw conclusions based on the findings presented.
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Affiliation(s)
- Chaymaa Hachimi Alaoui
- Chemical Science and Engineering Research Team (ERSIC), FPBM, Sultan Moulay Slimane University, Mghila, P.O. Box 592, Beni Mellal 23000, Morocco;
- Nantes Université, Oniris, Univ Angers, INSERM, Regenerative Medicine and Skeleton, RmeS, UMR 1229, F-44000 Nantes, France
| | - Gildas Réthoré
- Nantes Université, Oniris, Univ Angers, CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RmeS, UMR 1229, F-44000 Nantes, France; (G.R.); (P.W.)
| | - Pierre Weiss
- Nantes Université, Oniris, Univ Angers, CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RmeS, UMR 1229, F-44000 Nantes, France; (G.R.); (P.W.)
| | - Ahmed Fatimi
- Chemical Science and Engineering Research Team (ERSIC), FPBM, Sultan Moulay Slimane University, Mghila, P.O. Box 592, Beni Mellal 23000, Morocco;
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Smitherman EA, Chahine RA, Beukelman T, Lewandowski LB, Rahman AKMF, Wenderfer SE, Curtis JR, Hersh AO, Abulaban K, Adams A, Adams M, Agbayani R, Aiello J, Akoghlanian S, Alejandro C, Allenspach E, Alperin R, Alpizar M, Amarilyo G, Ambler W, Anderson E, Ardoin S, Armendariz S, Baker E, Balboni I, Balevic S, Ballenger L, Ballinger S, Balmuri N, Barbar‐Smiley F, Barillas‐Arias L, Basiaga M, Baszis K, Becker M, Bell‐Brunson H, Beltz E, Benham H, Benseler S, Bernal W, Beukelman T, Bigley T, Binstadt B, Black C, Blakley M, Bohnsack J, Boland J, Boneparth A, Bowman S, Bracaglia C, Brooks E, Brothers M, Brown A, Brunner H, Buckley M, Buckley M, Bukulmez H, Bullock D, Cameron B, Canna S, Cannon L, Carper P, Cartwright V, Cassidy E, Cerracchio L, Chalom E, Chang J, Chang‐Hoftman A, Chauhan V, Chira P, Chinn T, Chundru K, Clairman H, Co D, Confair A, Conlon H, Connor R, Cooper A, Cooper J, Cooper S, Correll C, Corvalan R, Costanzo D, Cron R, Curiel‐Duran L, Curington T, Curry M, Dalrymple A, Davis A, Davis C, Davis C, Davis T, De Benedetti F, De Ranieri D, Dean J, Dedeoglu F, DeGuzman M, Delnay N, Dempsey V, DeSantis E, Dickson T, Dingle J, Donaldson B, Dorsey E, Dover S, Dowling J, Drew J, Driest K, Du Q, Duarte K, Durkee D, Duverger E, Dvergsten J, Eberhard A, Eckert M, Ede K, Edelheit B, Edens C, Edens C, Edgerly Y, Elder M, Ervin B, Fadrhonc S, Failing C, Fair D, Falcon M, Favier L, Federici S, Feldman B, Fennell J, Ferguson I, Ferguson P, Ferreira B, Ferrucho R, Fields K, Finkel T, Fitzgerald M, Fleming C, Flynn O, Fogel L, Fox E, Fox M, Franco L, Freeman M, Fritz K, Froese S, Fuhlbrigge R, Fuller J, George N, Gerhold K, Gerstbacher D, Gilbert M, Gillispie‐Taylor M, Giverc E, Godiwala C, Goh I, Goheer H, Goldsmith D, Gotschlich E, Gotte A, Gottlieb B, Gracia C, Graham T, Grevich S, Griffin T, Griswold J, Grom A, Guevara M, Guittar P, Guzman M, Hager M, Hahn T, Halyabar O, Hammelev E, Hance M, Hanson A, Harel L, Haro S, Harris J, Harry O, Hartigan E, Hausmann J, Hay A, Hayward K, Heiart J, Hekl K, Henderson L, Henrickson M, Hersh A, Hickey K, Hill P, Hillyer S, Hiraki L, Hiskey M, Hobday P, Hoffart C, Holland M, Hollander M, Hong S, Horwitz M, Hsu J, Huber A, Huggins J, Hui‐Yuen J, Hung C, Huntington J, Huttenlocher A, Ibarra M, Imundo L, Inman C, Insalaco A, Jackson A, Jackson S, James K, Janow G, Jaquith J, Jared S, Johnson N, Jones J, Jones J, Jones J, Jones K, Jones S, Joshi S, Jung L, Justice C, Justiniano A, Karan N, Kaufman K, Kemp A, Kessler E, Khalsa U, Kienzle B, Kim S, Kimura Y, Kingsbury D, Kitcharoensakkul M, Klausmeier T, Klein K, Klein‐Gitelman M, Kompelien B, Kosikowski A, Kovalick L, Kracker J, Kramer S, Kremer C, Lai J, Lam J, Lang B, Lapidus S, Lapin B, Lasky A, Latham D, Lawson E, Laxer R, Lee P, Lee P, Lee T, Lentini L, Lerman M, Levy D, Li S, Lieberman S, Lim L, Lin C, Ling N, Lingis M, Lo M, Lovell D, Lowman D, Luca N, Lvovich S, Madison C, Madison J, Manzoni SM, Malla B, Maller J, Malloy M, Mannion M, Manos C, Marques L, Martyniuk A, Mason T, Mathus S, McAllister L, McCarthy K, McConnell K, McCormick E, McCurdy D, Stokes PM, McGuire S, McHale I, McMonagle A, McMullen‐Jackson C, Meidan E, Mellins E, Mendoza E, Mercado R, Merritt A, Michalowski L, Miettunen P, Miller M, Milojevic D, Mirizio E, Misajon E, Mitchell M, Modica R, Mohan S, Moore K, Moorthy L, Morgan S, Dewitt EM, Moss C, Moussa T, Mruk V, Murphy A, Muscal E, Nadler R, Nahal B, Nanda K, Nasah N, Nassi L, Nativ S, Natter M, Neely J, Nelson B, Newhall L, Ng L, Nicholas J, Nicolai R, Nigrovic P, Nocton J, Nolan B, Oberle E, Obispo B, O'Brien B, O'Brien T, Okeke O, Oliver M, Olson J, O'Neil K, Onel K, Orandi A, Orlando M, Osei‐Onomah S, Oz R, Pagano E, Paller A, Pan N, Panupattanapong S, Pardeo M, Paredes J, Parsons A, Patel J, Pentakota K, Pepmueller P, Pfeiffer T, Phillippi K, Marafon DP, Phillippi K, Ponder L, Pooni R, Prahalad S, Pratt S, Protopapas S, Puplava B, Quach J, Quinlan‐Waters M, Rabinovich C, Radhakrishna S, Rafko J, Raisian J, Rakestraw A, Ramirez C, Ramsay E, Ramsey S, Randell R, Reed A, Reed A, Reed A, Reid H, Remmel K, Repp A, Reyes A, Richmond A, Riebschleger M, Ringold S, Riordan M, Riskalla M, Ritter M, Rivas‐Chacon R, Robinson A, Rodela E, Rodriquez M, Rojas K, Ronis T, Rosenkranz M, Rosolowski B, Rothermel H, Rothman D, Roth‐Wojcicki E, Rouster – Stevens K, Rubinstein T, Ruth N, Saad N, Sabbagh S, Sacco E, Sadun R, Sandborg C, Sanni A, Santiago L, Sarkissian A, Savani S, Scalzi L, Schanberg L, Scharnhorst S, Schikler K, Schlefman A, Schmeling H, Schmidt K, Schmitt E, Schneider R, Schollaert‐Fitch K, Schulert G, Seay T, Seper C, Shalen J, Sheets R, Shelly A, Shenoi S, Shergill K, Shirley J, Shishov M, Shivers C, Silverman E, Singer N, Sivaraman V, Sletten J, Smith A, Smith C, Smith J, Smith J, Smitherman E, Soep J, Son M, Spence S, Spiegel L, Spitznagle J, Sran R, Srinivasalu H, Stapp H, Steigerwald K, Rakovchik YS, Stern S, Stevens A, Stevens B, Stevenson R, Stewart K, Stingl C, Stokes J, Stoll M, Stringer E, Sule S, Sumner J, Sundel R, Sutter M, Syed R, Syverson G, Szymanski A, Taber S, Tal R, Tambralli A, Taneja A, Tanner T, Tapani S, Tarshish G, Tarvin S, Tate L, Taxter A, Taylor J, Terry M, Tesher M, Thatayatikom A, Thomas B, Tiffany K, Ting T, Tipp A, Toib D, Torok K, Toruner C, Tory H, Toth M, Tse S, Tubwell V, Twilt M, Uriguen S, Valcarcel T, Van Mater H, Vannoy L, Varghese C, Vasquez N, Vazzana K, Vehe R, Veiga K, Velez J, Verbsky J, Vilar G, Volpe N, von Scheven E, Vora S, Wagner J, Wagner‐Weiner L, Wahezi D, Waite H, Walker J, Walters H, Muskardin TW, Waqar L, Waterfield M, Watson M, Watts A, Weiser P, Weiss J, Weiss P, Wershba E, White A, Williams C, Wise A, Woo J, Woolnough L, Wright T, Wu E, Yalcindag A, Yee M, Yen E, Yeung R, Yomogida K, Yu Q, Zapata R, Zartoshti A, Zeft A, Zeft R, Zhang Y, Zhao Y, Zhu A, Zic C. Childhood-Onset Lupus Nephritis in the Childhood Arthritis and Rheumatology Research Alliance Registry: Short-Term Kidney Status and Variation in Care. Arthritis Care Res (Hoboken) 2023; 75:1553-1562. [PMID: 36775844 PMCID: PMC10500561 DOI: 10.1002/acr.25002] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 11/23/2021] [Revised: 07/14/2022] [Accepted: 08/16/2022] [Indexed: 11/10/2022]
Abstract
OBJECTIVE The goal was to characterize short-term kidney status and describe variation in early care utilization in a multicenter cohort of patients with childhood-onset systemic lupus erythematosus (cSLE) and nephritis. METHODS We analyzed previously collected prospective data from North American patients with cSLE with kidney biopsy-proven nephritis enrolled in the Childhood Arthritis and Rheumatology Research Alliance (CARRA) Registry from March 2017 through December 2019. We determined the proportion of patients with abnormal kidney status at the most recent registry visit and applied generalized linear mixed models to identify associated factors. We also calculated frequency of medication use, both during induction and ever recorded. RESULTS We identified 222 patients with kidney biopsy-proven nephritis, with 64% class III/IV nephritis on initial biopsy. At the most recent registry visit at median (interquartile range) of 17 (8-29) months from initial kidney biopsy, 58 of 106 patients (55%) with available data had abnormal kidney status. This finding was associated with male sex (odds ratio [OR] 3.88, 95% confidence interval [95% CI] 1.21-12.46) and age at cSLE diagnosis (OR 1.23, 95% CI 1.01-1.49). Patients with class IV nephritis were more likely than class III to receive cyclophosphamide and rituximab during induction. There was substantial variation in mycophenolate, cyclophosphamide, and rituximab ever use patterns across rheumatology centers. CONCLUSION In this cohort with predominately class III/IV nephritis, male sex and older age at cSLE diagnosis were associated with abnormal short-term kidney status. We also observed substantial variation in contemporary medication use for pediatric lupus nephritis between pediatric rheumatology centers. Additional studies are needed to better understand the impact of this variation on long-term kidney outcomes.
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Lancien U, Charbonnier B, Weiss P, Corre P, Perrot P. Rat Perforator and Skin Vessels Vascular Mapping: An Original Anatomical Study About 140 Vessels and Literature Review. J Surg Res 2023; 288:298-308. [PMID: 37058986 DOI: 10.1016/j.jss.2023.03.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 02/21/2023] [Accepted: 03/14/2023] [Indexed: 04/16/2023]
Abstract
INTRODUCTION Recent microsurgical reconstruction techniques benefit from the use of skin and perforator flaps that spare the donor sites. Studies on these skin flaps in rat models are numerous but there is currently no reference regarding the position of the perforators, their caliber, and the length of the vascular pedicles. METHODS We performed an anatomical study on 10 Wistar rats and 140 vessels: cranial epigastric (CE), superficial inferior epigastric (SIE), lateral thoracic (LT), posterior thigh (PT), deep iliac circumflex (DCI) and posterior intercostal (PIC) vessels. The evaluation criteria were the external caliber, the length of the pedicle, and the position of the vessels reported on the skin surface. RESULTS Data from the six perforator vascular pedicles are reported, with figures illustrating the orthonormal reference frame, the representation of the vessel's position, the cloud of points corresponding to the various measurements, and the average representation of the collected data. The analysis of the literature does not find similar studies; the different vascular pedicles are discussed as well as the limitations of our study: evaluation of cadaver specimen, presence of the very mobile panniculus carnosus, other perforator vessels not evaluated as well as the precise definition of perforating vessels. CONCLUSIONS Our work describes the vascular calibers, pedicle lengths, and location of birth and arrival at the skin of the perforator vessels PT, DCI, PIC, LT, SIE, and CE in rat animal models. This work, without an equivalent in the literature, lays the foundation for future studies about flap perfusion, microsurgery, and super microsurgery learning.
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Affiliation(s)
- Ugo Lancien
- Plastic, Reconstructive, and Aesthetic Surgery Unit, Nantes University Hospital, Nantes, France; INSERM, UMRS 1229, Laboratory Regenerative Medicine and Skeleton (RMeS), Nantes, France; Université de Nantes, UFR Odontologie, Nantes, France.
| | - Baptiste Charbonnier
- INSERM, UMRS 1229, Laboratory Regenerative Medicine and Skeleton (RMeS), Nantes, France; Université de Nantes, UFR Odontologie, Nantes, France
| | - Pierre Weiss
- INSERM, UMRS 1229, Laboratory Regenerative Medicine and Skeleton (RMeS), Nantes, France; Université de Nantes, UFR Odontologie, Nantes, France
| | - Pierre Corre
- INSERM, UMRS 1229, Laboratory Regenerative Medicine and Skeleton (RMeS), Nantes, France; Maxillofacial surgery unit, Nantes University Hospital, Nantes, France; Université de Nantes, UFR Odontologie, Nantes, France
| | - Pierre Perrot
- Plastic, Reconstructive, and Aesthetic Surgery Unit, Nantes University Hospital, Nantes, France; INSERM, UMRS 1229, Laboratory Regenerative Medicine and Skeleton (RMeS), Nantes, France; Université de Nantes, UFR Odontologie, Nantes, France
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Paré A, Charbonnier B, Veziers J, Vignes C, Dutilleul M, De Pinieux G, Laure B, Bossard A, Saucet-Zerbib A, Touzot-Jourde G, Weiss P, Corre P, Gauthier O, Marchat D. Standardized and axially vascularized calcium phosphate-based implants for segmental mandibular defects: A promising proof of concept. Acta Biomater 2022; 154:626-640. [PMID: 36210043 DOI: 10.1016/j.actbio.2022.09.071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 09/09/2022] [Accepted: 09/28/2022] [Indexed: 12/14/2022]
Abstract
The reconstruction of massive segmental mandibular bone defects (SMDs) remains challenging even today; the current gold standard in human clinics being vascularized bone transplantation (VBT). As alternative to this onerous approach, bone tissue engineering strategies have been widely investigated. However, they displayed limited clinical success, particularly in failing to address the essential problem of quick vascularization of the implant. Although routinely used in clinics, the insertion of intrinsic vascularization in bioengineered constructs for the rapid formation of a feeding angiosome remains uncommon. In a clinically relevant model (sheep), a custom calcium phosphate-based bioceramic soaked with autologous bone marrow and perfused by an arteriovenous loop was tested to regenerate a massive SMD and was compared to VBT (clinical standard). Animals did not support well the VBT treatment, and the study was aborted 2 weeks after surgery due to ethical and animal welfare considerations. SMD regeneration was successful with the custom vascularized bone construct. Implants were well osseointegrated and vascularized after only 3 months of implantation and totally entrapped in lamellar bone after 12 months; a healthy yellow bone marrow filled the remaining space. STATEMENT OF SIGNIFICANCE: Regenerative medicine struggles with the generation of large functional bone volume. Among them segmental mandibular defects are particularly challenging to restore. The standard of care, based on bone free flaps, still displays ethical and technical drawbacks (e.g., donor site morbidity). Modern engineering technologies (e.g., 3D printing, digital chain) were combined to relevant surgical techniques to provide a pre-clinical proof of concept, investigating for the benefits of such a strategy in bone-related regenerative field. Results proved that a synthetic-biologics-free approach is able to regenerate a critical size segmental mandibular defect of 15 cm3 in a relevant preclinical model, mimicking real life scenarii of segmental mandibular defect, with a full physiological regeneration of the defect after 12 months.
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Affiliation(s)
- Arnaud Paré
- INSERM, U 1229, Laboratory of Regenerative Medicine and Skeleton, RMeS, Nantes Université, 1 Place Alexis Ricordeau, Nantes 44042, France; Department of Maxillofacial and Plastic surgery, Burn Unit, University Hospital of Tours, Trousseau Hospital, Avenue de la République, Chambray lès Tours 37170, France
| | - Baptiste Charbonnier
- INSERM, U 1229, Laboratory of Regenerative Medicine and Skeleton, RMeS, Nantes Université, 1 Place Alexis Ricordeau, Nantes 44042, France; Mines Saint-Étienne, Univ Jean Monnet, INSERM, U 1059 Sainbiose, 42023, Saint-Étienne, France
| | - Joëlle Veziers
- INSERM, U 1229, Laboratory of Regenerative Medicine and Skeleton, RMeS, Nantes Université, 1 Place Alexis Ricordeau, Nantes 44042, France
| | - Caroline Vignes
- INSERM, U 1229, Laboratory of Regenerative Medicine and Skeleton, RMeS, Nantes Université, 1 Place Alexis Ricordeau, Nantes 44042, France
| | - Maeva Dutilleul
- INSERM, U 1229, Laboratory of Regenerative Medicine and Skeleton, RMeS, Nantes Université, 1 Place Alexis Ricordeau, Nantes 44042, France
| | - Gonzague De Pinieux
- Department of Pathology, University Hospital of Tours, Trousseau Hospital, Avenue de la République, Chambray lès Tours 37170, France
| | - Boris Laure
- Department of Maxillofacial and Plastic surgery, Burn Unit, University Hospital of Tours, Trousseau Hospital, Avenue de la République, Chambray lès Tours 37170, France
| | - Adeline Bossard
- ONIRIS Nantes-Atlantic College of Veterinary Medicine, Research Center of Preclinical Invesitagtion (CRIP), Site de la Chantrerie, 101 route de Gachet, Nantes 44307, France
| | - Annaëlle Saucet-Zerbib
- ONIRIS Nantes-Atlantic College of Veterinary Medicine, Research Center of Preclinical Invesitagtion (CRIP), Site de la Chantrerie, 101 route de Gachet, Nantes 44307, France
| | - Gwenola Touzot-Jourde
- INSERM, U 1229, Laboratory of Regenerative Medicine and Skeleton, RMeS, Nantes Université, 1 Place Alexis Ricordeau, Nantes 44042, France; ONIRIS Nantes-Atlantic College of Veterinary Medicine, Research Center of Preclinical Invesitagtion (CRIP), Site de la Chantrerie, 101 route de Gachet, Nantes 44307, France
| | - Pierre Weiss
- INSERM, U 1229, Laboratory of Regenerative Medicine and Skeleton, RMeS, Nantes Université, 1 Place Alexis Ricordeau, Nantes 44042, France
| | - Pierre Corre
- INSERM, U 1229, Laboratory of Regenerative Medicine and Skeleton, RMeS, Nantes Université, 1 Place Alexis Ricordeau, Nantes 44042, France; Clinique de Stomatologie et Chirurgie Maxillo-Faciale, Nantes University Hospital, 1 Place Alexis Ricordeau, Nantes 44042, France
| | - Olivier Gauthier
- INSERM, U 1229, Laboratory of Regenerative Medicine and Skeleton, RMeS, Nantes Université, 1 Place Alexis Ricordeau, Nantes 44042, France; ONIRIS Nantes-Atlantic College of Veterinary Medicine, Research Center of Preclinical Invesitagtion (CRIP), Site de la Chantrerie, 101 route de Gachet, Nantes 44307, France
| | - David Marchat
- Mines Saint-Étienne, Univ Jean Monnet, INSERM, U 1059 Sainbiose, 42023, Saint-Étienne, France.
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Hahn T, Daymont C, Beukelman T, Groh B, Hays K, Bingham CA, Scalzi L, Abel N, Abulaban K, Adams A, Adams M, Agbayani R, Aiello J, Akoghlanian S, Alejandro C, Allenspach E, Alperin R, Alpizar M, Amarilyo G, Ambler W, Anderson E, Ardoin S, Armendariz S, Baker E, Balboni I, Balevic S, Ballenger L, Ballinger S, Balmuri N, Barbar-Smiley F, Barillas-Arias L, Basiaga M, Baszis K, Becker M, Bell-Brunson H, Beltz E, Benham H, Benseler S, Bernal W, Beukelman T, Bigley T, Binstadt B, Black C, Blakley M, Bohnsack J, Boland J, Boneparth A, Bowman S, Bracaglia C, Brooks E, Brothers M, Brown A, Brunner H, Buckley M, Buckley M, Bukulmez H, Bullock D, Cameron B, Canna S, Cannon L, Carper P, Cartwright V, Cassidy E, Cerracchio L, Chalom E, Chang J, Chang-Hoftman A, Chauhan V, Chira P, Chinn T, Chundru K, Clairman H, Co D, Confair A, Conlon H, Connor R, Cooper A, Cooper J, Cooper S, Correll C, Corvalan R, Costanzo D, Cron R, Curiel-Duran L, Curington T, Curry M, Dalrymple A, Davis A, Davis C, Davis C, Davis T, De Benedetti F, De Ranieri D, Dean J, Dedeoglu F, DeGuzman M, Delnay N, Dempsey V, DeSantis E, Dickson T, Dingle J, Donaldson B, Dorsey E, Dover S, Dowling J, Drew J, Driest K, Du Q, Duarte K, Durkee D, Duverger E, Dvergsten J, Eberhard A, Eckert M, Ede K, Edelheit B, Edens C, Edens C, Edgerly Y, Elder M, Ervin B, Fadrhonc S, Failing C, Fair D, Falcon M, Favier L, Federici S, Feldman B, Fennell J, Ferguson I, Ferguson P, Ferreira B, Ferrucho R, Fields K, Finkel T, Fitzgerald M, Fleming C, Flynn O, Fogel L, Fox E, Fox M, Franco L, Freeman M, Fritz K, Froese S, Fuhlbrigge R, Fuller J, George N, Gerhold K, Gerstbacher D, Gilbert M, Gillispie-Taylor M, Giverc E, Godiwala C, Goh I, Goheer H, Goldsmith D, Gotschlich E, Gotte A, Gottlieb B, Gracia C, Graham T, Grevich S, Griffin T, Griswold J, Grom A, Guevara M, Guittar P, Guzman M, Hager M, Hahn T, Halyabar O, Hammelev E, Hance M, Hanson A, Harel L, Haro S, Harris J, Harry O, Hartigan E, Hausmann J, Hay A, Hayward K, Heiart J, Hekl K, Henderson L, Henrickson M, Hersh A, Hickey K, Hill P, Hillyer S, Hiraki L, Hiskey M, Hobday P, Hoffart C, Holland M, Hollander M, Hong S, Horwitz M, Hsu J, Huber A, Huggins J, Hui-Yuen J, Hung C, Huntington J, Huttenlocher A, Ibarra M, Imundo L, Inman C, Insalaco A, Jackson A, Jackson S, James K, Janow G, Jaquith J, Jared S, Johnson N, Jones J, Jones J, Jones J, Jones K, Jones S, Joshi S, Jung L, Justice C, Justiniano A, Karan N, Kaufman K, Kemp A, Kessler E, Khalsa U, Kienzle B, Kim S, Kimura Y, Kingsbury D, Kitcharoensakkul M, Klausmeier T, Klein K, Klein-Gitelman M, Kompelien B, Kosikowski A, Kovalick L, Kracker J, Kramer S, Kremer C, Lai J, Lam J, Lang B, Lapidus S, Lapin B, Lasky A, Latham D, Lawson E, Laxer R, Lee P, Lee P, Lee T, Lentini L, Lerman M, Levy D, Li S, Lieberman S, Lim L, Lin C, Ling N, Lingis M, Lo M, Lovell D, Lowman D, Luca N, Lvovich S, Madison C, Madison J, Manzoni SM, Malla B, Maller J, Malloy M, Mannion M, Manos C, Marques L, Martyniuk A, Mason T, Mathus S, McAllister L, McCarthy K, McConnell K, McCormick E, McCurdy D, Stokes PMC, McGuire S, McHale I, McMonagle A, McMullen-Jackson C, Meidan E, Mellins E, Mendoza E, Mercado R, Merritt A, Michalowski L, Miettunen P, Miller M, Milojevic D, Mirizio E, Misajon E, Mitchell M, Modica R, Mohan S, Moore K, Moorthy L, Morgan S, Dewitt EM, Moss C, Moussa T, Mruk V, Murphy A, Muscal E, Nadler R, Nahal B, Nanda K, Nasah N, Nassi L, Nativ S, Natter M, Neely J, Nelson B, Newhall L, Ng L, Nicholas J, Nicolai R, Nigrovic P, Nocton J, Nolan B, Oberle E, Obispo B, O’Brien B, O’Brien T, Okeke O, Oliver M, Olson J, O’Neil K, Onel K, Orandi A, Orlando M, Osei-Onomah S, Oz R, Pagano E, Paller A, Pan N, Panupattanapong S, Pardeo M, Paredes J, Parsons A, Patel J, Pentakota K, Pepmueller P, Pfeiffer T, Phillippi K, Marafon DP, Phillippi K, Ponder L, Pooni R, Prahalad S, Pratt S, Protopapas S, Puplava B, Quach J, Quinlan-Waters M, Rabinovich C, Radhakrishna S, Rafko J, Raisian J, Rakestraw A, Ramirez C, Ramsay E, Ramsey S, Randell R, Reed A, Reed A, Reed A, Reid H, Remmel K, Repp A, Reyes A, Richmond A, Riebschleger M, Ringold S, Riordan M, Riskalla M, Ritter M, Rivas-Chacon R, Robinson A, Rodela E, Rodriquez M, Rojas K, Ronis T, Rosenkranz M, Rosolowski B, Rothermel H, Rothman D, Roth-Wojcicki E, Rouster-Stevens K, Rubinstein T, Ruth N, Saad N, Sabbagh S, Sacco E, Sadun R, Sandborg C, Sanni A, Santiago L, Sarkissian A, Savani S, Scalzi L, Schanberg L, Scharnhorst S, Schikler K, Schlefman A, Schmeling H, Schmidt K, Schmitt E, Schneider R, Schollaert-Fitch K, Schulert G, Seay T, Seper C, Shalen J, Sheets R, Shelly A, Shenoi S, Shergill K, Shirley J, Shishov M, Shivers C, Silverman E, Singer N, Sivaraman V, Sletten J, Smith A, Smith C, Smith J, Smith J, Smitherman E, Soep J, Son M, Spence S, Spiegel L, Spitznagle J, Sran R, Srinivasalu H, Stapp H, Steigerwald K, Rakovchik YS, Stern S, Stevens A, Stevens B, Stevenson R, Stewart K, Stingl C, Stokes J, Stoll M, Stringer E, Sule S, Sumner J, Sundel R, Sutter M, Syed R, Syverson G, Szymanski A, Taber S, Tal R, Tambralli A, Taneja A, Tanner T, Tapani S, Tarshish G, Tarvin S, Tate L, Taxter A, Taylor J, Terry M, Tesher M, Thatayatikom A, Thomas B, Tiffany K, Ting T, Tipp A, Toib D, Torok K, Toruner C, Tory H, Toth M, Tse S, Tubwell V, Twilt M, Uriguen S, Valcarcel T, Van Mater H, Vannoy L, Varghese C, Vasquez N, Vazzana K, Vehe R, Veiga K, Velez J, Verbsky J, Vilar G, Volpe N, von Scheven E, Vora S, Wagner J, Wagner-Weiner L, Wahezi D, Waite H, Walker J, Walters H, Muskardin TW, Waqar L, Waterfield M, Watson M, Watts A, Weiser P, Weiss J, Weiss P, Wershba E, White A, Williams C, Wise A, Woo J, Woolnough L, Wright T, Wu E, Yalcindag A, Yee M, Yen E, Yeung R, Yomogida K, Yu Q, Zapata R, Zartoshti A, Zeft A, Zeft R, Zhang Y, Zhao Y, Zhu A, Zic C. Intraarticular steroids as DMARD-sparing agents for juvenile idiopathic arthritis flares: Analysis of the Childhood Arthritis and Rheumatology Research Alliance Registry. Pediatr Rheumatol Online J 2022; 20:107. [PMID: 36434731 PMCID: PMC9701017 DOI: 10.1186/s12969-022-00770-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 11/08/2022] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Children with juvenile idiopathic arthritis (JIA) who achieve a drug free remission often experience a flare of their disease requiring either intraarticular steroids (IAS) or systemic treatment with disease modifying anti-rheumatic drugs (DMARDs). IAS offer an opportunity to recapture disease control and avoid exposure to side effects from systemic immunosuppression. We examined a cohort of patients treated with IAS after drug free remission and report the probability of restarting systemic treatment within 12 months. METHODS We analyzed a cohort of patients from the Childhood Arthritis and Rheumatology Research Alliance (CARRA) Registry who received IAS for a flare after a period of drug free remission. Historical factors and clinical characteristics and of the patients including data obtained at the time of treatment were analyzed. RESULTS We identified 46 patients who met the inclusion criteria. Of those with follow up data available 49% had restarted systemic treatment 6 months after IAS injection and 70% had restarted systemic treatment at 12 months. The proportion of patients with prior use of a biologic DMARD was the only factor that differed between patients who restarted systemic treatment those who did not, both at 6 months (79% vs 35%, p < 0.01) and 12 months (81% vs 33%, p < 0.05). CONCLUSION While IAS are an option for all patients who flare after drug free remission, it may not prevent the need to restart systemic treatment. Prior use of a biologic DMARD may predict lack of success for IAS. Those who previously received methotrexate only, on the other hand, are excellent candidates for IAS.
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Affiliation(s)
- Timothy Hahn
- Department of Pediatrics, Penn State Children's Hospital, 500 University Dr, Hershey, 90 Hope Drive, P.O. Box 855, Hershey, PA, 17033-0855, USA.
| | - Carrie Daymont
- grid.240473.60000 0004 0543 9901Department of Pediatrics, Penn State Children’s Hospital, 500 University Dr, Hershey, 90 Hope Drive, P.O. Box 855, Hershey, PA 17033-0855 USA
| | - Timothy Beukelman
- grid.265892.20000000106344187Department of Pediatrics, University of Alabama at Birmingham, CPPN G10, 1600 7th Ave South, Birmingham, AL 35233 USA
| | - Brandt Groh
- grid.240473.60000 0004 0543 9901Department of Pediatrics, Penn State Children’s Hospital, 500 University Dr, Hershey, 90 Hope Drive, P.O. Box 855, Hershey, PA 17033-0855 USA
| | | | - Catherine April Bingham
- grid.240473.60000 0004 0543 9901Department of Pediatrics, Penn State Children’s Hospital, 500 University Dr, Hershey, 90 Hope Drive, P.O. Box 855, Hershey, PA 17033-0855 USA
| | - Lisabeth Scalzi
- grid.240473.60000 0004 0543 9901Department of Pediatrics, Penn State Children’s Hospital, 500 University Dr, Hershey, 90 Hope Drive, P.O. Box 855, Hershey, PA 17033-0855 USA
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Halimi F, Sabouret P, Huberman JP, Cohen S, Ouazana L, Hoffman O, Assouline S, Guedj-Meynier D, Schwartz J, Weiss P, Lafont C, Lellouche N. Atrial fibrillation diagnosis by a systematic 14-day continuous ECG-Holter in patients with high cardiovascular risk and clinical palpitation: the prospective AFTER study. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Atrial Fibrillation (AF) is asymptomatic in 20–30% of cases. New technologic tools for continuous ECG monitoring have been developed to detect and potentially treat AF in specific population with high cardiovascular risk.
Purpose
We aimed to evaluate the prevalence and the management of AF diagnosed in patients with no previous documented AF but with a high cardiovascular risk and clinical palpitation undergoing systematic 14-day continuous ECG-Holter monitoring and associated characteristics.
Methods
Patients were prospectively enrolled from December 2019 to December 2021 in this multicentered study, sponsored by the French National College of Cardiology. Patients needed to meet the following criteria: CHA2DS2VASc score ≥3 in women >2 in men associated with clinical palpitation without previous documented arrhythmia, particularly AF. Exclusion criteria were: previous documented AF, participation to another study that could interfere with the current study, pregnancy, previous skin intolerance to ECG-Holter electrodes. Included patients underwent a 14-day monitoring Holter-ECG to detect cardiac arrhythmia, particularly AF. Patients' characteristics, type of arrythmias and management of detected AF were described.
Results
Among the 336 included patients, 39% were men, median age was 73 [64.5–78] years, 71.5% had hypertension and 46.5% had a previous history of stroke. AF was detected in 14% of patients, among which 23.4% in the first 24 hours monitoring. In univariate analyses, older age (p=0.045) was significantly associated with AF, and a trend was observed regarding male gender (p=0.067) and less antiplatelet therapy (p=0.058). Patients with diagnosed AF had a prescription of anticoagulation therapy in 90% of cases consisting in apixaban and rivaroxaban for 72% and 28% respectively. Antiarrhythmic drugs were administered in 90% of AF patients and 13% underwent AF ablation.
Conclusions
The systematic AF screening of selected patients based on CHA2DS2VASc score ≥3 in women >2 in men associated with palpitations allows to diagnose AF in 14% of the population with a 14-day continuous ECG-Holter. This strategy seems efficient as it induced the prescription of anticoagulation and antiarrhythmic therapy in 90% of individuals.
Funding Acknowledgement
Type of funding sources: Public Institution(s). Main funding source(s): NATIONAL COLLEGE OF FRENCH CARDIOLOGISTS
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Affiliation(s)
- F Halimi
- Private Hopital of Parly II, Rythmology , Le Chesnay , France
| | - P Sabouret
- Hospital Pitie-Salpetriere , Paris , France
| | - J P Huberman
- National College of French Cardiologists, Cardiology , Paris , France
| | - S Cohen
- National College of French Cardiologists, Cardiology , Paris , France
| | - L Ouazana
- National College of French Cardiologists, Cardiology , Paris , France
| | - O Hoffman
- National College of French Cardiologists, Cardiology , Paris , France
| | - S Assouline
- National College of French Cardiologists, Cardiology , Paris , France
| | - D Guedj-Meynier
- National College of French Cardiologists, Cardiology , Paris , France
| | - J Schwartz
- National College of French Cardiologists, Cardiology , Paris , France
| | - P Weiss
- National College of French Cardiologists, Cardiology , Paris , France
| | - C Lafont
- University Hospital Henri Mondor, Public Health , Creteil , France
| | - N Lellouche
- University Hospital Henri Mondor, Rythmology Department , Creteil , France
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Völp D, Weiss P. Digital transformation and sustainability in process manufacturing. CHEM-ING-TECH 2022. [DOI: 10.1002/cite.202255410] [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: 11/11/2022]
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Chaithya GR, Weiss P, Daval-Frerot G, Massire A, Vignaud A, Ciuciu P. Optimizing Full 3D SPARKLING Trajectories for High-Resolution Magnetic Resonance Imaging. IEEE Trans Med Imaging 2022; 41:2105-2117. [PMID: 35254981 DOI: 10.1109/tmi.2022.3157269] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The Spreading Projection Algorithm for Rapid K-space sampLING, or SPARKLING, is an optimization-driven method that has been recently introduced for accelerated 2D MRI using compressed sensing. It has then been extended to address 3D imaging using either stacks of 2D sampling patterns or a local 3D strategy that optimizes a single sampling trajectory at a time. 2D SPARKLING actually performs variable density sampling (VDS) along a prescribed target density while maximizing sampling efficiency and meeting the gradient-based hardware constraints. However, 3D SPARKLING has remained limited in terms of acceleration factors along the third dimension if one wants to preserve a peaky point spread function (PSF) and thus good image quality. In this paper, in order to achieve higher acceleration factors in 3D imaging while preserving image quality, we propose a new efficient algorithm that performs optimization on full 3D SPARKLING. The proposed implementation based on fast multipole methods (FMM) allows us to design sampling patterns with up to 107 k-space samples, thus opening the door to 3D VDS. We compare multi-CPU and GPU implementations and demonstrate that the latter is optimal for 3D imaging in the high-resolution acquisition regime ( 600μ m isotropic). Finally, we show that this novel optimization for full 3D SPARKLING outperforms stacking strategies or 3D twisted projection imaging through retrospective and prospective studies on NIST phantom and in vivo brain scans at 3 Tesla taking the particular case of T2 *-w imaging. Overall the proposed method allows for 2.5-3.75x shorter scan times compared to GRAPPA-4 parallel imaging acquisition at 3 Tesla without compromising image quality.
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Runser JY, Criado-Gonzalez M, Fneich F, Rabineau M, Senger B, Weiss P, Jierry L, Schaaf P. Non-monotonous enzyme-assisted self-assembly profiles resulting from reaction-diffusion processes in host gels. J Colloid Interface Sci 2022; 620:234-241. [DOI: 10.1016/j.jcis.2022.03.150] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 03/30/2022] [Accepted: 03/31/2022] [Indexed: 11/16/2022]
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Essani M, Mevellec JY, Charbonnier B, Moreau P, Moussi H, Weiss P, Bideau JL, Bayle M, Humbert B, Abellan P. Application of a Cryo-FIB-SEM-μRaman Instrument to Probe the Depth of Vitreous Ice in a Frozen Sample. Anal Chem 2022; 94:8120-8125. [PMID: 35648814 DOI: 10.1021/acs.analchem.2c00245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The development of instruments combining multiple characterization and imaging tools drove huge advances in material science, engineering, biology, and other related fields. Notably, the coupling of SEM with micro-Raman spectrometry (μRaman) provides the means for the correlation between structural and physicochemical properties at the surface, while dual focused ion beam (FIB)-scanning electron microscopes (SEMs) operating under cryogenic conditions (cryo-FIB-SEM) allow for the analysis of the ultrastructure of materials in situ and in their native environment. In cryo-FIB-SEM, rapid and efficient methods for assessing vitrification conditions in situ are required for the accurate investigation of the original structure of hydrated samples. This work reports for the first time the use of a cryo-FIB-SEM-μRaman instrument to efficiently assess the accuracy of cryo-fixation methods. Analyses were performed on plunge-freezed highly hydrated calcium phosphate cement (CPC) and a gelatin composite. By making a trench of a defined thickness with FIB, μRaman analyses were carried out at a specific depth within the frozen material. Results show that the μRaman signal is sensitive to the changes in the molecular structures of the aqueous phase and can be used to examine the depth of vitreous ice in frozen samples. The method presented in this work provides a reliable way to avoid imaging artifacts in cryo-FIB-SEM that are related to cryo-fixation and therefore constitutes great interest in the study of vitreous materials exhibiting high water content, regardless of the sample preparation method (i.e., by HPF, plunge freezing, and so on).
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Affiliation(s)
- Mouad Essani
- Nantes Université, CNRS, Institut des Matériaux de Nantes Jean Rouxel (IMN), F-44000 Nantes, France
| | - Jean-Yves Mevellec
- Nantes Université, CNRS, Institut des Matériaux de Nantes Jean Rouxel (IMN), F-44000 Nantes, France
| | - Baptiste Charbonnier
- Nantes Université, INSERM, UMR 1229 RMeS/ONIRIS, Regenerative Medicine and Skelton Laboratory, F-44042 Nantes, France
| | - Philippe Moreau
- Nantes Université, CNRS, Institut des Matériaux de Nantes Jean Rouxel (IMN), F-44000 Nantes, France
| | - Hilel Moussi
- Nantes Université, CNRS, Institut des Matériaux de Nantes Jean Rouxel (IMN), F-44000 Nantes, France.,Nantes Université, INSERM, UMR 1229 RMeS/ONIRIS, Regenerative Medicine and Skelton Laboratory, F-44042 Nantes, France
| | - Pierre Weiss
- Nantes Université, INSERM, CHU Nantes, UMR 1229 RMeS/ONIRIS, Regenerative Medicine and Skeleton Laboratory, F-44042 Nantes, France
| | - Jean Le Bideau
- Nantes Université, CNRS, Institut des Matériaux de Nantes Jean Rouxel (IMN), F-44000 Nantes, France
| | - Maxime Bayle
- Nantes Université, CNRS, Institut des Matériaux de Nantes Jean Rouxel (IMN), F-44000 Nantes, France
| | - Bernard Humbert
- Nantes Université, CNRS, Institut des Matériaux de Nantes Jean Rouxel (IMN), F-44000 Nantes, France
| | - Patricia Abellan
- Nantes Université, CNRS, Institut des Matériaux de Nantes Jean Rouxel (IMN), F-44000 Nantes, France
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Lesage C, Lafont M, Guihard P, Weiss P, Guicheux J, Delplace V. Material-Assisted Strategies for Osteochondral Defect Repair. Adv Sci (Weinh) 2022; 9:e2200050. [PMID: 35322596 PMCID: PMC9165504 DOI: 10.1002/advs.202200050] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [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: 01/04/2022] [Revised: 02/25/2022] [Indexed: 05/08/2023]
Abstract
The osteochondral (OC) unit plays a pivotal role in joint lubrication and in the transmission of constraints to bones during movement. The OC unit does not spontaneously heal; therefore, OC defects are considered to be one of the major risk factors for developing long-term degenerative joint diseases such as osteoarthritis. Yet, there is currently no curative treatment for OC defects, and OC regeneration remains an unmet medical challenge. In this context, a plethora of tissue engineering strategies have been envisioned over the last two decades, such as combining cells, biological molecules, and/or biomaterials, yet with little evidence of successful clinical transfer to date. This striking observation must be put into perspective with the difficulty in comparing studies to identify overall key elements for success. This systematic review aims to provide a deeper insight into the field of material-assisted strategies for OC regeneration, with particular considerations for the therapeutic potential of the different approaches (with or without cells or biological molecules), and current OC regeneration evaluation methods. After a brief description of the biological complexity of the OC unit, the recent literature is thoroughly analyzed, and the major pitfalls, emerging key elements, and new paths to success are identified and discussed.
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Affiliation(s)
- Constance Lesage
- Université de NantesOnirisCHU NantesINSERMRegenerative Medicine and SkeletonRMeSUMR 1229NantesF‐44000France
- HTL Biotechnology7 Rue Alfred KastlerJavené35133France
| | - Marianne Lafont
- Université de NantesOnirisCHU NantesINSERMRegenerative Medicine and SkeletonRMeSUMR 1229NantesF‐44000France
| | - Pierre Guihard
- Université de NantesOnirisCHU NantesINSERMRegenerative Medicine and SkeletonRMeSUMR 1229NantesF‐44000France
| | - Pierre Weiss
- Université de NantesOnirisCHU NantesINSERMRegenerative Medicine and SkeletonRMeSUMR 1229NantesF‐44000France
| | - Jérôme Guicheux
- Université de NantesOnirisCHU NantesINSERMRegenerative Medicine and SkeletonRMeSUMR 1229NantesF‐44000France
| | - Vianney Delplace
- Université de NantesOnirisCHU NantesINSERMRegenerative Medicine and SkeletonRMeSUMR 1229NantesF‐44000France
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Demarquay C, Moussa L, Réthoré G, Milliat F, Weiss P, Mathieu N. Embedding MSCs in Si-HPMC hydrogel decreased MSC-directed host immune response and increased the regenerative potential of macrophages. Regen Biomater 2022; 9:rbac022. [PMID: 35784096 PMCID: PMC9245650 DOI: 10.1093/rb/rbac022] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 03/22/2022] [Accepted: 04/10/2022] [Indexed: 11/14/2022] Open
Abstract
Embedding mesenchymal stromal cells (MSCs) in biomaterial is a subject of increasing interest in the field of Regenerative Medicine. Speeding up the clinical use of MSCs is dependent on the use of non-syngeneic models in accordance with Good Manufacturing Practices (GMP) requirements and on costs. To this end, in this study, we analyzed the in vivo host immune response following local injection of silanized hydroxypropyl methylcellulose (Si-HPMC)-embedded human MSCs in a rat model developing colorectal damage induced by ionizing radiation. Plasma and lymphocytes from mesenteric lymph nodes were harvested in addition to colonic tissue. We set up tests, using flow cytometry and a live imaging system, to highlight the response to specific antibodies and measure the cytotoxicity of lymphocytes against injected MSCs. We demonstrated that Si-HPMC protects MSCs from specific antibodies production and from apoptosis by lymphocytes. We also observed that Si-HPMC does not modify innate immune response infiltrate in vivo, and that in vitro co-culture of Si-HPMC-embedded MSCs impacts macrophage inflammatory response depending on the microenvironment but, more importantly, increases the macrophage regenerative response through Wnt-family and VEGF gene expression. This study furthers our understanding of the mechanisms involved, with a view to improving the therapeutic benefits of biomaterial-assisted cell therapy by modulating the host immune response. The decrease in specific immune response against injected MSCs protected by Si-HPMC also opens up new possibilities for allogeneic clinical use.
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Affiliation(s)
- Christelle Demarquay
- Human Health Department, IRSN, French Institute for Radiological Protection and Nuclear Safety, SERAMED, LRMed, Fontenay-aux-Roses 92262, France
| | - Lara Moussa
- Human Health Department, IRSN, French Institute for Radiological Protection and Nuclear Safety, SERAMED, LRMed, Fontenay-aux-Roses 92262, France
| | - Gildas Réthoré
- Faculté de Chirurgie Dentaire, Regenerative Medicine and Skeleton (RMeS) Laboratory, Université de Nantes, Nantes 44042, France
| | - Fabien Milliat
- Human Health Department, IRSN, French Institute for Radiological Protection and Nuclear Safety, SERAMED, LRMed, Fontenay-aux-Roses 92262, France
| | - Pierre Weiss
- Faculté de Chirurgie Dentaire, Regenerative Medicine and Skeleton (RMeS) Laboratory, Université de Nantes, Nantes 44042, France
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Soulsby WD, Balmuri N, Cooley V, Gerber LM, Lawson E, Goodman S, Onel K, Mehta B, Abel N, Abulaban K, Adams A, Adams M, Agbayani R, Aiello J, Akoghlanian S, Alejandro C, Allenspach E, Alperin R, Alpizar M, Amarilyo G, Ambler W, Anderson E, Ardoin S, Armendariz S, Baker E, Balboni I, Balevic S, Ballenger L, Ballinger S, Balmuri N, Barbar-Smiley F, Barillas-Arias L, Basiaga M, Baszis K, Becker M, Bell-Brunson H, Beltz E, Benham H, Benseler S, Bernal W, Beukelman T, Bigley T, Binstadt B, Black C, Blakley M, Bohnsack J, Boland J, Boneparth A, Bowman S, Bracaglia C, Brooks E, Brothers M, Brown A, Brunner H, Buckley M, Buckley M, Bukulmez H, Bullock D, Cameron B, Canna S, Cannon L, Carper P, Cartwright V, Cassidy E, Cerracchio L, Chalom E, Chang J, Chang-Hoftman A, Chauhan V, Chira P, Chinn T, Chundru K, Clairman H, Co D, Confair A, Conlon H, Connor R, Cooper A, Cooper J, Cooper S, Correll C, Corvalan R, Costanzo D, Cron R, Curiel-Duran L, Curington T, Curry M, Dalrymple A, Davis A, Davis C, Davis C, Davis T, De Benedetti F, De Ranieri D, Dean J, Dedeoglu F, DeGuzman M, Delnay N, Dempsey V, DeSantis E, Dickson T, Dingle J, Donaldson B, Dorsey E, Dover S, Dowling J, Drew J, Driest K, Du Q, Duarte K, Durkee D, Duverger E, Dvergsten J, Eberhard A, Eckert M, Ede K, Edelheit B, Edens C, Edens C, Edgerly Y, Elder M, Ervin B, Fadrhonc S, Failing C, Fair D, Falcon M, Favier L, Federici S, Feldman B, Fennell J, Ferguson I, Ferguson P, Ferreira B, Ferrucho R, Fields K, Finkel T, Fitzgerald M, Fleming C, Flynn O, Fogel L, Fox E, Fox M, Franco L, Freeman M, Fritz K, Froese S, Fuhlbrigge R, Fuller J, George N, Gerhold K, Gerstbacher D, Gilbert M, Gillispie-Taylor M, Giverc E, Godiwala C, Goh I, Goheer H, Goldsmith D, Gotschlich E, Gotte A, Gottlieb B, Gracia C, Graham T, Grevich S, Griffin T, Griswold J, Grom A, Guevara M, Guittar P, Guzman M, Hager M, Hahn T, Halyabar O, Hammelev E, Hance M, Hanson A, Harel L, Haro S, Harris J, Harry O, Hartigan E, Hausmann J, Hay A, Hayward K, Heiart J, Hekl K, Henderson L, Henrickson M, Hersh A, Hickey K, Hill P, Hillyer S, Hiraki L, Hiskey M, Hobday P, Hoffart C, Holland M, Hollander M, Hong S, Horwitz M, Hsu J, Huber A, Huggins J, Hui-Yuen J, Hung C, Huntington J, Huttenlocher A, Ibarra M, Imundo L, Inman C, Insalaco A, Jackson A, Jackson S, James K, Janow G, Jaquith J, Jared S, Johnson N, Jones J, Jones J, Jones J, Jones K, Jones S, Joshi S, Jung L, Justice C, Justiniano A, Karan N, Kaufman K, Kemp A, Kessler E, Khalsa U, Kienzle B, Kim S, Kimura Y, Kingsbury D, Kitcharoensakkul M, Klausmeier T, Klein K, Klein-Gitelman M, Kompelien B, Kosikowski A, Kovalick L, Kracker J, Kramer S, Kremer C, Lai J, Lam J, Lang B, Lapidus S, Lapin B, Lasky A, Latham D, Lawson E, Laxer R, Lee P, Lee P, Lee T, Lentini L, Lerman M, Levy D, Li S, Lieberman S, Lim L, Lin C, Ling N, Lingis M, Lo M, Lovell D, Lowman D, Luca N, Lvovich S, Madison C, Madison J, Manzoni SM, Malla B, Maller J, Malloy M, Mannion M, Manos C, Marques L, Martyniuk A, Mason T, Mathus S, McAllister L, McCarthy K, McConnell K, McCormick E, McCurdy D, Stokes PMC, McGuire S, McHale I, McMonagle A, McMullen-Jackson C, Meidan E, Mellins E, Mendoza E, Mercado R, Merritt A, Michalowski L, Miettunen P, Miller M, Milojevic D, Mirizio E, Misajon E, Mitchell M, Modica R, Mohan S, Moore K, Moorthy L, Morgan S, Dewitt EM, Moss C, Moussa T, Mruk V, Murphy A, Muscal E, Nadler R, Nahal B, Nanda K, Nasah N, Nassi L, Nativ S, Natter M, Neely J, Nelson B, Newhall L, Ng L, Nicholas J, Nicolai R, Nigrovic P, Nocton J, Nolan B, Oberle E, Obispo B, O’Brien B, O’Brien T, Okeke O, Oliver M, Olson J, O’Neil K, Onel K, Orandi A, Orlando M, Osei-Onomah S, Oz R, Pagano E, Paller A, Pan N, Panupattanapong S, Pardeo M, Paredes J, Parsons A, Patel J, Pentakota K, Pepmueller P, Pfeiffer T, Phillippi K, Marafon DP, Phillippi K, Ponder L, Pooni R, Prahalad S, Pratt S, Protopapas S, Puplava B, Quach J, Quinlan-Waters M, Rabinovich C, Radhakrishna S, Rafko J, Raisian J, Rakestraw A, Ramirez C, Ramsay E, Ramsey S, Randell R, Reed A, Reed A, Reed A, Reid H, Remmel K, Repp A, Reyes A, Richmond A, Riebschleger M, Ringold S, Riordan M, Riskalla M, Ritter M, Rivas-Chacon R, Robinson A, Rodela E, Rodriquez M, Rojas K, Ronis T, Rosenkranz M, Rosolowski B, Rothermel H, Rothman D, Roth-Wojcicki E, Rouster-Stevens K, Rubinstein T, Ruth N, Saad N, Sabbagh S, Sacco E, Sadun R, Sandborg C, Sanni A, Santiago L, Sarkissian A, Savani S, Scalzi L, Schanberg L, Scharnhorst S, Schikler K, Schlefman A, Schmeling H, Schmidt K, Schmitt E, Schneider R, Schollaert-Fitch K, Schulert G, Seay T, Seper C, Shalen J, Sheets R, Shelly A, Shenoi S, Shergill K, Shirley J, Shishov M, Shivers C, Silverman E, Singer N, Sivaraman V, Sletten J, Smith A, Smith C, Smith J, Smith J, Smitherman E, Soep J, Son M, Spence S, Spiegel L, Spitznagle J, Sran R, Srinivasalu H, Stapp H, Steigerwald K, Rakovchik YS, Stern S, Stevens A, Stevens B, Stevenson R, Stewart K, Stingl C, Stokes J, Stoll M, Stringer E, Sule S, Sumner J, Sundel R, Sutter M, Syed R, Syverson G, Szymanski A, Taber S, Tal R, Tambralli A, Taneja A, Tanner T, Tapani S, Tarshish G, Tarvin S, Tate L, Taxter A, Taylor J, Terry M, Tesher M, Thatayatikom A, Thomas B, Tiffany K, Ting T, Tipp A, Toib D, Torok K, Toruner C, Tory H, Toth M, Tse S, Tubwell V, Twilt M, Uriguen S, Valcarcel T, Van Mater H, Vannoy L, Varghese C, Vasquez N, Vazzana K, Vehe R, Veiga K, Velez J, Verbsky J, Vilar G, Volpe N, von Scheven E, Vora S, Wagner J, Wagner-Weiner L, Wahezi D, Waite H, Walker J, Walters H, Muskardin TW, Waqar L, Waterfield M, Watson M, Watts A, Weiser P, Weiss J, Weiss P, Wershba E, White A, Williams C, Wise A, Woo J, Woolnough L, Wright T, Wu E, Yalcindag A, Yee M, Yen E, Yeung R, Yomogida K, Yu Q, Zapata R, Zartoshti A, Zeft A, Zeft R, Zhang Y, Zhao Y, Zhu A, Zic C. Social determinants of health influence disease activity and functional disability in Polyarticular Juvenile Idiopathic Arthritis. Pediatr Rheumatol Online J 2022; 20:18. [PMID: 35255941 PMCID: PMC8903717 DOI: 10.1186/s12969-022-00676-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 02/07/2022] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Social determinants of health (SDH) greatly influence outcomes during the first year of treatment in rheumatoid arthritis, a disease similar to polyarticular juvenile idiopathic arthritis (pJIA). We investigated the correlation of community poverty level and other SDH with the persistence of moderate to severe disease activity and functional disability over the first year of treatment in pJIA patients enrolled in the Childhood Arthritis and Rheumatology Research Alliance Registry. METHODS In this cohort study, unadjusted and adjusted generalized linear mixed effects models analyzed the effect of community poverty and other SDH on disease activity, using the clinical Juvenile Arthritis Disease Activity Score-10, and disability, using the Child Health Assessment Questionnaire, measured at baseline, 6, and 12 months. RESULTS One thousand six hundred eighty-four patients were identified. High community poverty (≥20% living below the federal poverty level) was associated with increased odds of functional disability (OR 1.82, 95% CI 1.28-2.60) but was not statistically significant after adjustment (aOR 1.23, 95% CI 0.81-1.86) and was not associated with increased disease activity. Non-white race/ethnicity was associated with higher disease activity (aOR 2.48, 95% CI: 1.41-4.36). Lower self-reported household income was associated with higher disease activity and persistent functional disability. Public insurance (aOR 1.56, 95% CI 1.06-2.29) and low family education (aOR 1.89, 95% CI 1.14-3.12) was associated with persistent functional disability. CONCLUSION High community poverty level was associated with persistent functional disability in unadjusted analysis but not with persistent moderate to high disease activity. Race/ethnicity and other SDH were associated with persistent disease activity and functional disability.
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Affiliation(s)
- William Daniel Soulsby
- University of California, San Francisco, 550 16th Street, 4th Floor, Box #0632, San Francisco, CA, 94158, USA.
| | - Nayimisha Balmuri
- grid.239915.50000 0001 2285 8823Hospital for Special Surgery, New York, NY USA ,grid.5386.8000000041936877XWeill Cornell Medicine, New York, NY USA
| | - Victoria Cooley
- grid.5386.8000000041936877XWeill Cornell Medicine, New York, NY USA
| | - Linda M. Gerber
- grid.5386.8000000041936877XWeill Cornell Medicine, New York, NY USA
| | - Erica Lawson
- grid.266102.10000 0001 2297 6811University of California, San Francisco, 550 16th Street, 4th Floor, Box #0632, San Francisco, CA 94158 USA
| | - Susan Goodman
- grid.239915.50000 0001 2285 8823Hospital for Special Surgery, New York, NY USA ,grid.5386.8000000041936877XWeill Cornell Medicine, New York, NY USA
| | - Karen Onel
- grid.239915.50000 0001 2285 8823Hospital for Special Surgery, New York, NY USA ,grid.5386.8000000041936877XWeill Cornell Medicine, New York, NY USA
| | - Bella Mehta
- grid.239915.50000 0001 2285 8823Hospital for Special Surgery, New York, NY USA ,grid.5386.8000000041936877XWeill Cornell Medicine, New York, NY USA
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Griveau L, Lafont M, le Goff H, Drouglazet C, Robbiani B, Berthier A, Sigaudo-Roussel D, Latif N, Visage CL, Gache V, Debret R, Weiss P, Sohier J. Design and characterization of an in vivo injectable hydrogel with effervescently generated porosity for regenerative medicine applications. Acta Biomater 2022; 140:324-337. [PMID: 34843951 DOI: 10.1016/j.actbio.2021.11.036] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [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: 06/30/2021] [Revised: 11/20/2021] [Accepted: 11/23/2021] [Indexed: 12/20/2022]
Abstract
Injectable hydrogels that polymerize directly in vivo hold significant promises in clinical settings to support the repair of damaged or failing tissues. Existing systems that allow cellular and tissue ingrowth after injection are limited because of deficient porosity and lack of oxygen and nutrient diffusion inside the hydrogels. Here is reported for the first time an in vivo injectable hydrogel in which the porosity does not pre-exist but is formed concomitantly with its in situ injection by a controlled effervescent reaction. The hydrogel tailorable crosslinking, through the reaction of polyethylene glycol with lysine dendrimers, allows the mixing and injection of precursor solutions from a dual-chamber syringe while entrapping effervescently generated CO2 bubbles to form highly interconnected porous networks. The resulting structures allow preserving modular mechanical properties (from 12.7 ± 0.9 to 29.9 ± 1.7 kPa) while being cytocompatible and conducive to swift cellular attachment, proliferation, in-depth infiltration and extracellular matrix deposition. Most importantly, the subcutaneously injected porous hydrogels are biocompatible, undergo tissue remodeling and support extensive neovascularisation, which is of significant advantage for the clinical repair of damaged tissues. Thus, the porosity and injectability of the described effervescent hydrogels, together with their biocompatibility and versatility of mechanical properties, open broad perspectives for various regenerative medicine or material applications, since effervescence could be combined with a variety of other systems of swift crosslinking. STATEMENT OF SIGNIFICANCE: A major challenge in hydrogel design is the synthesis of injectable formulations allowing easy handling and dispensing in the site of interest. However, the lack of adequate porosity inside hydrogels prevent cellular entry and, therefore, vascularization and tissue ingrowth, limiting the regenerative potential of a vast majority of injectable hydrogels. We describe here the development of an acellular hydrogel that can be injected directly in situ while allowing the simultaneous formation of porosity. Such hydrogel would facilitate handling through injection while providing a porous structure supporting vascularization and tissue ingrowth.
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Affiliation(s)
- Louise Griveau
- Laboratory for tissue biology and therapeutic engineering (LBTI), CNRS, Université de Lyon, UMR 5305, 7 Passage du Vercors, Lyon cedex 7 69367, France
| | - Marianne Lafont
- Université de Nantes, Oniris, CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, Nantes F-44000, France
| | - Héloïse le Goff
- Université de Lyon, INSA-Lyon, MATEIS, UMR CNRS 5510-7 avenue Jean Capelle, F-69621, Villeurbanne, France
| | - Clémence Drouglazet
- Université de Lyon, INSA-Lyon, MATEIS, UMR CNRS 5510-7 avenue Jean Capelle, F-69621, Villeurbanne, France
| | - Baptiste Robbiani
- Université de Lyon, INSA-Lyon, MATEIS, UMR CNRS 5510-7 avenue Jean Capelle, F-69621, Villeurbanne, France
| | - Aurore Berthier
- Laboratory for tissue biology and therapeutic engineering (LBTI), CNRS, Université de Lyon, UMR 5305, 7 Passage du Vercors, Lyon cedex 7 69367, France
| | - Dominique Sigaudo-Roussel
- Laboratory for tissue biology and therapeutic engineering (LBTI), CNRS, Université de Lyon, UMR 5305, 7 Passage du Vercors, Lyon cedex 7 69367, France
| | - Najma Latif
- Imperial College London, Heart Science Centre, Harefield Hospital, Harefield, Middlesex UB9 6JH, UK
| | - Catherine Le Visage
- Université de Nantes, Oniris, CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, Nantes F-44000, France
| | - Vincent Gache
- Institut NeuroMyogène (INMG), Muscle Nuclear and Cytoskeleton Architecture (MNCA), CNRS UMR 5310-INSERM U1217-UCBL1-Université de Lyon, 8 avenue Rockefeller, Lyon 69008. France
| | - Romain Debret
- Laboratory for tissue biology and therapeutic engineering (LBTI), CNRS, Université de Lyon, UMR 5305, 7 Passage du Vercors, Lyon cedex 7 69367, France
| | - Pierre Weiss
- Université de Nantes, Oniris, CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, Nantes F-44000, France
| | - Jérôme Sohier
- Laboratory for tissue biology and therapeutic engineering (LBTI), CNRS, Université de Lyon, UMR 5305, 7 Passage du Vercors, Lyon cedex 7 69367, France.
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Dos Santos M, Demarquay C, Ermeneux L, Aberkane F, Bléry P, Weiss P, Milliat F, Mathieu N. Refining the mandibular osteoradionecrosis rat model by in vivo longitudinal µCT analysis. Sci Rep 2021; 11:22241. [PMID: 34782666 PMCID: PMC8594779 DOI: 10.1038/s41598-021-01229-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 10/18/2021] [Indexed: 11/19/2022] Open
Abstract
Osteoradionecrosis (ORN) is one of the most feared side effects of radiotherapy following cancers of the upper aero-digestive tract and leading to severe functional defects in patients. Today, our lack of knowledge about the physiopathology restricts the development of new treatments. In this study, we refined the ORN rat model and quantitatively studied the progression of the disease. We tested the impact of radiation doses from 20 to 40 Gy, delivered with incident 4MV X-ray beams on the left mandible of the inbred Lewis Rat. We used micro-computed tomography (µCT) to obtain in vivo images for longitudinal bone imaging and ex vivo images after animal perfusion with barium sulphate contrast agent for vessel imaging. We compared quantification methods by analyzing 3D images and 2D measurements to determine the most appropriate and precise method according to the degree of damage. We defined 25 Gy as the minimum irradiation dose combined with the median molar extraction necessary to develop non-regenerative bone necrosis. µCT image analyses were correlated with clinical and histological analyses. This refined model and accurate methods for bone and vessel quantification will improve our knowledge of the progression of ORN pathology and allow us to test the efficacy of new regenerative medicine procedures.
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Affiliation(s)
- Morgane Dos Santos
- Human Health Department, IRSN, Institute for Radioprotection and Nuclear Safety, PSE-SANTE, SERAMED, LRMed, 92 262, Fontenay-aux-Roses, France.,IRSN, Institute of Radioprotection and Nuclear Safety, Human Health Department, PSE-SANTE, SERAMED, LRAcc, 92 262, Fontenay-aux-Roses, France
| | - Christelle Demarquay
- Human Health Department, IRSN, Institute for Radioprotection and Nuclear Safety, PSE-SANTE, SERAMED, LRMed, 92 262, Fontenay-aux-Roses, France
| | - Louis Ermeneux
- Human Health Department, IRSN, Institute for Radioprotection and Nuclear Safety, PSE-SANTE, SERAMED, LRMed, 92 262, Fontenay-aux-Roses, France
| | - Fazia Aberkane
- Human Health Department, IRSN, Institute for Radioprotection and Nuclear Safety, PSE-SANTE, SERAMED, LRMed, 92 262, Fontenay-aux-Roses, France
| | - Pauline Bléry
- CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, Université de Nantes, Oniris, 44000, Nantes, France
| | - Pierre Weiss
- CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, Université de Nantes, Oniris, 44000, Nantes, France
| | - Fabien Milliat
- Human Health Department, IRSN, Institute for Radioprotection and Nuclear Safety, PSE-SANTE, SERAMED, LRMed, 92 262, Fontenay-aux-Roses, France
| | - Noëlle Mathieu
- Human Health Department, IRSN, Institute for Radioprotection and Nuclear Safety, PSE-SANTE, SERAMED, LRMed, 92 262, Fontenay-aux-Roses, France.
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19
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Flegeau K, Gauthier O, Rethore G, Autrusseau F, Schaefer A, Lesoeur J, Veziers J, Brésin A, Gautier H, Weiss P. Injectable silanized hyaluronic acid hydrogel/biphasic calcium phosphate granule composites with improved handling and biodegradability promote bone regeneration in rabbits. Biomater Sci 2021; 9:5640-5651. [PMID: 34254604 DOI: 10.1039/d1bm00403d] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Biphasic calcium phosphate (BCP) granules are osteoconductive biomaterials used in clinics to favor bone reconstruction. Yet, poor cohesivity, injectability and mechanical properties restrain their use as bone fillers. In this study, we incorporated BCP granules into in situ forming silanized hyaluronic acid (Si-HA) and hydroxypropylmethylcellulose (Si-HPMC) hydrogels. Hydrogel composites were shown to be easily injectable (F < 30 N), with fast hardening properties (<5 min), and similar mechanical properties (E∼ 60 kPa). In vivo, both hydrogels were well tolerated by the host, but showed different biodegradability with Si-HA gels being partially degraded after 21d, while Si-HPMC gels remained stable. Both composites were easily injected into critical size rabbit defects and remained cohesive. After 4 weeks, Si-HPMC/BCP led to poor bone healing due to a lack of degradation. Conversely, Si-HA/BCP composites were fully degraded and beneficially influenced bone regeneration by increasing the space available for bone ingrowth, and by accelerating BCP granules turnover. Our study demonstrates that the degradation rate is key to control bone regeneration and that Si-HA/BCP composites are promising biomaterials to regenerate bone defects.
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Affiliation(s)
- Killian Flegeau
- Université de Nantes, ONIRIS, Inserm UMR 1229, RMeS, Regenerative Medicine and Skeleton, Nantes F-44042, France. and Université de Nantes, UFR Odontologie, Nantes, F-44042, France and HTL S.A.S, Javené, France
| | - Olivier Gauthier
- Université de Nantes, ONIRIS, Inserm UMR 1229, RMeS, Regenerative Medicine and Skeleton, Nantes F-44042, France. and Université de Nantes, UFR Odontologie, Nantes, F-44042, France and Department of Experimental Surgery, CRIP, Oniris, Nantes, F-44300, France
| | - Gildas Rethore
- Université de Nantes, ONIRIS, Inserm UMR 1229, RMeS, Regenerative Medicine and Skeleton, Nantes F-44042, France. and Université de Nantes, UFR Odontologie, Nantes, F-44042, France and CHU Nantes, PHU4 OTONN, Nantes F-44093, France
| | - Florent Autrusseau
- Université de Nantes, ONIRIS, Inserm UMR 1229, RMeS, Regenerative Medicine and Skeleton, Nantes F-44042, France. and Université de Nantes, UFR Odontologie, Nantes, F-44042, France and Ecole Polytechnique de l'Université de Nantes, rue Ch. Pauc, Nantes, F-44300, France
| | - Aurélie Schaefer
- Université de Nantes, ONIRIS, Inserm UMR 1229, RMeS, Regenerative Medicine and Skeleton, Nantes F-44042, France. and Université de Nantes, UFR Odontologie, Nantes, F-44042, France and SC3M, SFR Santé F. Bonamy, FED 4203, UMS Inserm 016, CNRS 3556, Nantes F-44042, France
| | - Julie Lesoeur
- Université de Nantes, ONIRIS, Inserm UMR 1229, RMeS, Regenerative Medicine and Skeleton, Nantes F-44042, France. and Université de Nantes, UFR Odontologie, Nantes, F-44042, France and SC3M, SFR Santé F. Bonamy, FED 4203, UMS Inserm 016, CNRS 3556, Nantes F-44042, France
| | - Joëlle Veziers
- Université de Nantes, ONIRIS, Inserm UMR 1229, RMeS, Regenerative Medicine and Skeleton, Nantes F-44042, France. and CHU Nantes, PHU4 OTONN, Nantes F-44093, France and SC3M, SFR Santé F. Bonamy, FED 4203, UMS Inserm 016, CNRS 3556, Nantes F-44042, France
| | | | - Hélène Gautier
- Université de Nantes, ONIRIS, Inserm UMR 1229, RMeS, Regenerative Medicine and Skeleton, Nantes F-44042, France. and Université de Nantes, UFR Odontologie, Nantes, F-44042, France and Université de Nantes, Faculté de Pharmacie, Laboratoire de Pharmacie Galénique, Nantes F-44042, France
| | - Pierre Weiss
- Université de Nantes, ONIRIS, Inserm UMR 1229, RMeS, Regenerative Medicine and Skeleton, Nantes F-44042, France. and Université de Nantes, UFR Odontologie, Nantes, F-44042, France and CHU Nantes, PHU4 OTONN, Nantes F-44093, France
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20
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Herregods N, Maksymowych WP, Jans L, Otobo TM, Sudoł-Szopińska I, Meyers AB, Van Rossum M, Kirkhus E, Panwar J, Appenzeller S, Weiss P, Tse S, Doria AS, Lambert R, Jaremko JL. Atlas of MRI findings of sacroiliitis in pediatric sacroiliac joints to accompany the updated preliminary OMERACT pediatric JAMRIS (Juvenile Idiopathic Arthritis MRI Score) scoring system: Part I: Active lesions. Semin Arthritis Rheum 2021; 51:1089-1098. [PMID: 34311986 DOI: 10.1016/j.semarthrit.2021.07.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 06/15/2021] [Accepted: 07/05/2021] [Indexed: 01/19/2023]
Abstract
Magnetic resonance imaging (MRI) is an increasingly important tool for identifying involvement of the sacroiliac joints (SIJ) in juvenile idiopathic arthritis (JIA). The key feature for diagnosing active sacroiliitis is bone marrow edema (BME), but other features of active arthritis such as joint space inflammation, inflammation in an erosion cavity, capsulitis and enthesitis can be seen as well. Structural changes may also be seen. Systematic MRI assessment of inflammation and structural damage may aid in monitoring the disease course, choice of therapeutics and evaluating treatment response. In this pictorial essay, we illustrate normal MRI findings and growth-related changes of the SIJ in the pediatric population, as well as the different MRI features of SIJ inflammation. This atlas demonstrates fundamental MRI disease features of active inflammation in a format that can serve as a reference for assessing SIJ arthritis according to the updated preliminary JAMRIS (Juvenile Idiopathic Arthritis MRI Score) scoring system proposed by the MRI in JIA working group of Outcome Measures in Rheumatology and Clinical Trials (OMERACT). The atlas is intended to be read in conjunction with its companion Part 2, Structural Lesions.
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Affiliation(s)
- N Herregods
- Department of Radiology and Nuclear Medicine, Ghent University Hospital, C. Heymanslaan 10, 9000 Ghent, Belgium.
| | | | - Lbo Jans
- Department of Radiology and Nuclear Medicine, Ghent University Hospital, C. Heymanslaan 10, 9000 Ghent, Belgium
| | - T M Otobo
- Institute of Medical Sciences, Faculty of Medicine, University of Toronto, and Department of Diagnostic Imaging, The Hospital for Sick Children and Department of Translational Medicine, SickKids Research Institute, Peter Gilgan Center for Research and Learning, University of Toronto, Toronto, Canada
| | - I Sudoł-Szopińska
- Department of Radiology, National Institute of Geriatrics, Rheumatology and Rehabilitation, Warsaw, Poland
| | - A B Meyers
- Department of Radiology, Cincinnati Children's Hospital, Cincinnati, OH, United States
| | - Maj Van Rossum
- Amsterdam Rheumatology and Immunology Center, Reade, and Emma Children's Hospital Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - E Kirkhus
- Department of Radiology, Oslo University Hospital, Oslo, Norway
| | - J Panwar
- Department of Radiology, Christian Medical College, Vellore, India
| | - S Appenzeller
- Faculty of Medical Sciences, University of Campinas, Campinas, Brazil
| | - P Weiss
- University of Pennsylvania Perelman School of Medicine, Division of Rheumatology, Children's Hospital of Philadelphia and Department of Pediatrics, University of Pennsylvania, Philadelphia, USA
| | - Sml Tse
- Division of Rheumatology, The Hospital for Sick Children, Toronto, Canada
| | - A S Doria
- Department of Medical Imaging, University of Toronto, Toronto and Department of Diagnostic Imaging, The Hospital for Sick Children, University of Toronto, Toronto, Canada
| | - Rgw Lambert
- Canada Department of Radiology and Diagnostic Imaging, University of Alberta and WC Mackenzie Health Sciences Center, Edmonton, Alberta, Canada
| | - J L Jaremko
- Canada Department of Radiology and Diagnostic Imaging, University of Alberta and WC Mackenzie Health Sciences Center, Edmonton, Alberta, Canada
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21
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Otobo TM, Herregods N, Jaremko JL, Lambert RG, Sudoł-Szopińska I, Meyers AB, Kirkhus E, Weiss P, Tse SM, Appenzeller S, Conaghan PG, Rumsey DG, Stimec J, Jans L, Van Rossum M, Tzaribachev N, Carrino J, Papakonstantinou O, Tolend M, Moineddin R, Haroon N, Maksymowych WP, Doria AS. POS1323 SACROILIAC JOINT MRI ABNORMALITIES IN JUVENILE SPONDYLOARTHRITIS: AN UPDATE OF DEFINITIONS AND SCORING OF THE OMERACT JUVENILE IDIOPATHIC ARTHRITIS MRI SCORE. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.3321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:Preliminary definitions for SIJ lesions in the OMERACT Juvenile Idiopathic Arthritis Magnetic Resonance Imaging score has been reported1. Investigators identified the need to revise the JAMRIS-SIJ item definitions.Objectives:To update the JAMRIS-SIJ definitions and scoring method.Methods:The OMERACT JAMRI working group was convened to discuss the performance of the score in a reliability exercise using 30 patients. Twenty investigators (12 radiologists, 8 rheumatologists) decided which definitions and scoring methods to be revised, retained or added.Results:The revised JAMRI-SIJ is in the Table 1.Table 1.Revised OMERACT JAMRIS-SIJ.ComponentDefinitionSegmentation/sliceScore range/sliceBone Marrow Edema (BME)An ill-defined area of high bone marrow signal intensity within the subchondral bone in the ilium or sacrum on fluid sensitive images4 quadrants/SIJ0-8BME IntensityPresence of hyperintensity of the marrow on fluid sensitive images using the signal of the presacral veins or cerebrospinal fluid as reference1 score/SIJ0-2BME DepthContinuing increased signal on fluid sensitive images of depth ≥ 5mm/ ≥ 1cm from the articular surface using the signal of the presacral veins or cerebrospinal fluid as reference1 score/SIJ0-2OsteitisAn ill-defined area of high bone marrow signal intensity within the subchondral bone in the ilium or sacrum on contrast enhanced T1 weighted sequences4 quadrants/SIJ0-8CapsulitisIncreased signal on fluid sensitive or contrast enhanced T1 weighted sequences involving the superior portion of the SIJ capsulesuperior halves/SIJ0-2Joint space fluidHigh signal intensity equivalent to the CSF on fluid sensitive sequences within the joint space of the cartilaginous portion of the SIJhalves/SIJ0-4Joint space enhancementIncreased signal intensity on contrast enhanced T1 weighted sequences within the joint space of the cartilaginous portion of the SIJhalves/SIJ0-4Inflammation in erosion cavityIncreased signal intensity on fluid sensitive or contrast enhanced T1 weighted sequences in an erosion cavity of the cartilaginous portion of the SIJhalves/SIJ0-4EnthesitisIncreased signal intensity in bone marrow and/or adjacent soft tissue on fluid sensitive or contrast enhanced T1 weighted sequences at sites where ligaments and tendons attach to a bone excluding retroarticular enthesitisScore per case0-1Damage DomainSclerosisA substantially wider than normal area of very low bone marrow signal intensity within the subchondral bone in the ilium or sacrum on a non-fat suppressed sequence, preferably a non-fat suppressed T1 weighted sequence. This feature must also be present on all other sequences, as available4 quadrants/SIJ0-8ErosionA focal loss of the low signal of cortical bone at the osteochondral interface and adjacent marrow matrix on T1 weighted images4 quadrants/SIJ0-8Fat metaplasia lesionHomogeneous increased signal intensity within the subchondral bone marrow on T1weighted images4 quadrants/SIJ0-8BackfillA high signal on non-contrast enhanced T1 weighted sequences in a typical location for an erosion, with signal intensity greater than normal bone marrow, clearly demarcated from adjacent bone marrow by an irregular band of low signal reflecting sclerosis at the border of the original erosionhalves/SIJ0-4AnkylosisPresence of signal equivalent to regional bone marrow continuously bridging a portion of the joint space between the iliac and sacral boneshalves/SIJ0-4Statement of overarching consideration for all definitions: “[…] in comparison to physiological changes normally seen on MRI examinations of age- and sex-matched children, and visible in 2 planes wherever available.”Conclusion:Revised JAMRIS-SIJ has been developed. Validation steps are underway.References:[1]Otobo TM, et al. Preliminary Definitions for Sacroiliac Joint Pathologies in the OMERACT Juvenile Idiopathic Arthritis Magnetic Resonance Imaging Score (OMERACT JAMRIS-SIJ). The Journal of rheumatology. 2019;46(9):1192-7.Acknowledgements:The authors acknowledge The Hospital for SickKids Research Trainee Competition (RESTRACOMP) and Queen Elizabeth II/Edward Dunlop Foundation Scholarship In Science and Technology (QEII-GSST) at the University of Toronto for funding provided to Dr. Tarimobo M. Otobo. The authors also acknowledge Prof. Dr. Desiree van der Heijde for providing expert commentary.Disclosure of Interests:None declared
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22
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Tournier P, Guicheux J, Paré A, Veziers J, Barbeito A, Bardonnet R, Corre P, Geoffroy V, Weiss P, Gaudin A. An Extrudable Partially Demineralized Allogeneic Bone Paste Exhibits a Similar Bone Healing Capacity as the "Gold Standard" Bone Graft. Front Bioeng Biotechnol 2021; 9:658853. [PMID: 33968916 PMCID: PMC8098662 DOI: 10.3389/fbioe.2021.658853] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 03/29/2021] [Indexed: 01/05/2023] Open
Abstract
Autologous bone grafts (BGs) remain the reference grafting technique in various clinical contexts of bone grafting procedures despite their numerous peri- and post-operative limitations. The use of allogeneic bone is a viable option for overcoming these limitations, as it is reliable and it has been widely utilized in various forms for decades. However, the lack of versatility of conventional allogeneic BGs (e.g., blocks, powders) limits their potential for use with irregular or hard-to-reach bone defects. In this context, a ready- and easy-to-use partially demineralized allogeneic BG in a paste form has been developed, with the aim of facilitating such bone grafting procedures. The regenerative properties of this bone paste (BP) was assessed and compared to that of a syngeneic BG in a pre-clinical model of intramembranous bone healing in critical size defects in rat calvaria. The microcomputed tridimensional quantifications and the histological observations at 7 weeks after the implantation revealed that the in vivo bone regeneration of critical-size defects (CSDs) filled with the BP was similar to syngeneic bone grafts (BGs). Thus, this ready-to-use, injectable, and moldable partially demineralized allogeneic BP, displaying equivalent bone healing capacity than the “gold standard,” may be of particular clinical relevance in the context of oral and maxillofacial bone reconstructions.
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Affiliation(s)
- Pierre Tournier
- INSERM, UMR 1229, RMeS, Regenerative Medicine and Skeleton, ONIRIS, Université de Nantes, Nantes, France.,BIOBank SAS, Lieusaint, France
| | - Jérôme Guicheux
- INSERM, UMR 1229, RMeS, Regenerative Medicine and Skeleton, CHU Nantes, ONIRIS, Université de Nantes, Nantes, France.,SC3M Facility, CNRS, INSERM, UMS, Structure Fédérative de Recherche François Bonamy, Université de Nantes, Nantes, France
| | - Arnaud Paré
- INSERM, UMR 1229, RMeS, Regenerative Medicine and Skeleton, ONIRIS, Université de Nantes, Nantes, France.,Service de Chirurgie Maxillo-Faciale, Plastique et Brulés, Hôpital Trousseau, CHU de Tours, Tours, France
| | - Joëlle Veziers
- INSERM, UMR 1229, RMeS, Regenerative Medicine and Skeleton, CHU Nantes, ONIRIS, Université de Nantes, Nantes, France.,SC3M Facility, CNRS, INSERM, UMS, Structure Fédérative de Recherche François Bonamy, Université de Nantes, Nantes, France
| | | | | | - Pierre Corre
- INSERM, UMR 1229, RMeS, Regenerative Medicine and Skeleton, CHU Nantes, ONIRIS, Université de Nantes, Nantes, France
| | - Valérie Geoffroy
- INSERM, UMR 1229, RMeS, Regenerative Medicine and Skeleton, ONIRIS, Université de Nantes, Nantes, France
| | - Pierre Weiss
- INSERM, UMR 1229, RMeS, Regenerative Medicine and Skeleton, CHU Nantes, ONIRIS, Université de Nantes, Nantes, France
| | - Alexis Gaudin
- INSERM, UMR 1229, RMeS, Regenerative Medicine and Skeleton, CHU Nantes, ONIRIS, Université de Nantes, Nantes, France
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23
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Cipris A, Moreira NA, do Espirito Santo TS, Weiss P, Villas-Boas CJ, Kaiser R, Guerin W, Bachelard R. Subradiance with Saturated Atoms: Population Enhancement of the Long-Lived States. Phys Rev Lett 2021; 126:103604. [PMID: 33784122 DOI: 10.1103/physrevlett.126.103604] [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: 09/16/2020] [Accepted: 02/16/2021] [Indexed: 05/12/2023]
Abstract
Dipole-dipole interactions are at the origin of long-lived collective atomic states, often called subradiant, which are explored for their potential use in novel photonic devices or in quantum protocols. Here, we study subradiance beyond the single-excitation regime and experimentally demonstrate a 200-fold increase in the population of these modes, as the saturation parameter of the driving field is increased. We attribute this enhancement to a mechanism similar to optical pumping through the well-coupled superradiant states. The lifetimes are unaffected by the pump strength, as the system is ultimately driven toward the single-excitation sector. Our study is a new step in the exploration of the many-body dynamics of large open systems.
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Affiliation(s)
- A Cipris
- Université Côte d'Azur, CNRS, Institut de Physique de Nice, 06560 Valbonne, France
| | - N A Moreira
- Instituto de Física de São Carlos, Universidade de São Paulo, 13566-590 São Carlos, SP, Brazil
| | - T S do Espirito Santo
- Instituto de Física de São Carlos, Universidade de São Paulo, 13566-590 São Carlos, SP, Brazil
| | - P Weiss
- Université Côte d'Azur, CNRS, Institut de Physique de Nice, 06560 Valbonne, France
| | - C J Villas-Boas
- Departamento de Física, Universidade Federal de São Carlos, Rodovia Washington Luís, km 235-SP-310, 13565-905 São Carlos, SP, Brazil
| | - R Kaiser
- Université Côte d'Azur, CNRS, Institut de Physique de Nice, 06560 Valbonne, France
| | - W Guerin
- Université Côte d'Azur, CNRS, Institut de Physique de Nice, 06560 Valbonne, France
| | - R Bachelard
- Departamento de Física, Universidade Federal de São Carlos, Rodovia Washington Luís, km 235-SP-310, 13565-905 São Carlos, SP, Brazil
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24
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Réthoré G, Boyer C, Kouadio K, Toure A, Lesoeur J, Halgand B, Jordana F, Guicheux J, Weiss P. Silanization of Chitosan and Hydrogel Preparation for Skeletal Tissue Engineering. Polymers (Basel) 2020; 12:polym12122823. [PMID: 33261192 PMCID: PMC7761294 DOI: 10.3390/polym12122823] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Revised: 11/22/2020] [Accepted: 11/24/2020] [Indexed: 12/13/2022] Open
Abstract
Tissue engineering is a multidisciplinary field that relies on the development of customized biomaterial to support cell growth, differentiation and matrix production. Toward that goal, we designed the grafting of silane groups onto the chitosan backbone (Si-chito) for the preparation of in situ setting hydrogels in association with silanized hydroxypropyl methylcellulose (Si-HPMC). Once functionalized, the chitosan was characterized, and the presence of silane groups and its ability to gel were demonstrated by rheology that strongly suggests the presence of silane groups. Throughout physicochemical investigations, the Si-HPMC hydrogels containing Si-chito were found to be stiffer with an injection force unmodified. The presence of chitosan within the hydrogel has demonstrated a higher adhesion of the hydrogel onto the surface of tissues. The results of cell viability assays indicated that there was no cytotoxicity of Si-chito hydrogels in 2D and 3D culture of human SW1353 cells and human adipose stromal cells, respectively. Moreover, Si-chito allows the transplantation of human nasal chondrocytes in the subcutis of nude mice while maintaining their viability and extracellular matrix secretory activity. To conclude, Si-chito mixed with Si-HPMC is an injectable, self-setting and cytocompatible hydrogel able to support the in vitro and in vivo viability and activity of hASC.
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Affiliation(s)
- Gildas Réthoré
- Dental Faculty, Université de Nantes, UMR 1229, RMeS, Regenerative Medicine and Skeleton, INSERM, ONIRIS, F-44042 Nantes, France; (G.R.); (C.B.); (K.K.); (A.T.); (J.L.); (B.H.); (F.J.); (J.G.)
- Institut National de la Santé et de la Recherche Médicale, Université de Nantes, UFR Odontologie, F-44042 Nantes, France
- CHU Nantes, PHU4 OTONN, F-44093 Nantes, France
| | - Cécile Boyer
- Dental Faculty, Université de Nantes, UMR 1229, RMeS, Regenerative Medicine and Skeleton, INSERM, ONIRIS, F-44042 Nantes, France; (G.R.); (C.B.); (K.K.); (A.T.); (J.L.); (B.H.); (F.J.); (J.G.)
- Institut National de la Santé et de la Recherche Médicale, Université de Nantes, UFR Odontologie, F-44042 Nantes, France
| | - Kouakou Kouadio
- Dental Faculty, Université de Nantes, UMR 1229, RMeS, Regenerative Medicine and Skeleton, INSERM, ONIRIS, F-44042 Nantes, France; (G.R.); (C.B.); (K.K.); (A.T.); (J.L.); (B.H.); (F.J.); (J.G.)
- Institut National de la Santé et de la Recherche Médicale, Université de Nantes, UFR Odontologie, F-44042 Nantes, France
| | - Amadou Toure
- Dental Faculty, Université de Nantes, UMR 1229, RMeS, Regenerative Medicine and Skeleton, INSERM, ONIRIS, F-44042 Nantes, France; (G.R.); (C.B.); (K.K.); (A.T.); (J.L.); (B.H.); (F.J.); (J.G.)
- Institut National de la Santé et de la Recherche Médicale, Université de Nantes, UFR Odontologie, F-44042 Nantes, France
- Department of Odontology, Faculty of Medicine, Pharmacy and Odontology, University Cheikh Anta DIOP, 12500 Dakar, Senegal
| | - Julie Lesoeur
- Dental Faculty, Université de Nantes, UMR 1229, RMeS, Regenerative Medicine and Skeleton, INSERM, ONIRIS, F-44042 Nantes, France; (G.R.); (C.B.); (K.K.); (A.T.); (J.L.); (B.H.); (F.J.); (J.G.)
- Institut National de la Santé et de la Recherche Médicale, Université de Nantes, UFR Odontologie, F-44042 Nantes, France
| | - Boris Halgand
- Dental Faculty, Université de Nantes, UMR 1229, RMeS, Regenerative Medicine and Skeleton, INSERM, ONIRIS, F-44042 Nantes, France; (G.R.); (C.B.); (K.K.); (A.T.); (J.L.); (B.H.); (F.J.); (J.G.)
- Institut National de la Santé et de la Recherche Médicale, Université de Nantes, UFR Odontologie, F-44042 Nantes, France
- CHU Nantes, PHU4 OTONN, F-44093 Nantes, France
| | - Fabienne Jordana
- Dental Faculty, Université de Nantes, UMR 1229, RMeS, Regenerative Medicine and Skeleton, INSERM, ONIRIS, F-44042 Nantes, France; (G.R.); (C.B.); (K.K.); (A.T.); (J.L.); (B.H.); (F.J.); (J.G.)
- Institut National de la Santé et de la Recherche Médicale, Université de Nantes, UFR Odontologie, F-44042 Nantes, France
- CHU Nantes, PHU4 OTONN, F-44093 Nantes, France
| | - Jérôme Guicheux
- Dental Faculty, Université de Nantes, UMR 1229, RMeS, Regenerative Medicine and Skeleton, INSERM, ONIRIS, F-44042 Nantes, France; (G.R.); (C.B.); (K.K.); (A.T.); (J.L.); (B.H.); (F.J.); (J.G.)
- Institut National de la Santé et de la Recherche Médicale, Université de Nantes, UFR Odontologie, F-44042 Nantes, France
- CHU Nantes, PHU4 OTONN, F-44093 Nantes, France
| | - Pierre Weiss
- Dental Faculty, Université de Nantes, UMR 1229, RMeS, Regenerative Medicine and Skeleton, INSERM, ONIRIS, F-44042 Nantes, France; (G.R.); (C.B.); (K.K.); (A.T.); (J.L.); (B.H.); (F.J.); (J.G.)
- Institut National de la Santé et de la Recherche Médicale, Université de Nantes, UFR Odontologie, F-44042 Nantes, France
- CHU Nantes, PHU4 OTONN, F-44093 Nantes, France
- Correspondence:
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25
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Reichert W, Tomaiko E, Patel M, Zawaneh M, Weiss P, Su W. Improving pulmonary vein isolation during cryoballoon ablation using the re-look angiography technique. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Cryoballoon ablation for pulmonary vein (PV) antral isolation is contact-dependent. Currently, occlusion assessment using the cryoballoon is most commonly performed using contrast venogram prior to ablation. However, there is a known difference in balloon size/shape between the inflated and ablation state, due to significant increase in cryoballoon pressure, which can cause potential undetected leak and, thus, failure of PV isolation. This phenomenon is currently not detected using standard techniques and effectiveness of mitigation techniques have not been assessed.
Purpose
We hypothesize that repeat injection of contrast five seconds after the initiation of cryoballoon ablation can be used to assess changes in shape and confirm ongoing occlusion during ablation; the re-look angiography technique. The incidence of PVI leak and the ability for the relook angiography to remedy the leak is assessed.
Methods
A total of 125 patients (440 PVs) undergoing cryoballoon ablation (Medtronic Arctic Front Advance Balloon™) were assessed using the re-look angiography technique unless they required occlusion with a segmental approach. Fifteen patients were excluded from contrast use due to renal insufficiency.
Results
Successful single occlusion was seen in 330 (75%) PVs and the re-look angiography technique was employed in each of those events. In 180 of the 330 (55%) single PV occlusions, a new PV leak undetected during the initial PV angiogram was identified. This prompted repositioning of the balloon to achieve complete PV isolation in 85 of 180 of the PV cases, with 95 of the cases requiring additional segmental ablation to complete full PV isolation.
Conclusion
A significant amount of insufficient PV antral contact during cryo-ablation may not be detected with conventional single PV angiography and may explain inadequate PV isolation. The re-look angiography technique is a simple tool to confirm robust balloon contact and guide repositioning as well as identify the need for additional segmental ablation. Additional follow up is needed for translation to improved clinical outcomes.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- W Reichert
- Banner University Medical Center Phoenix, Phoenix, United States of America
| | - E Tomaiko
- Banner University Medical Center Phoenix, Phoenix, United States of America
| | - M Patel
- Banner University Medical Center Phoenix, Phoenix, United States of America
| | - M Zawaneh
- Banner University Medical Center Phoenix, Phoenix, United States of America
| | - P Weiss
- Banner University Medical Center Phoenix, Phoenix, United States of America
| | - W Su
- Banner University Medical Center Phoenix, Phoenix, United States of America
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26
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Flegeau K, Toquet C, Rethore G, d'Arros C, Messager L, Halgand B, Dupont D, Autrusseau F, Lesoeur J, Veziers J, Bordat P, Bresin A, Guicheux J, Delplace V, Gautier H, Weiss P. Tissue Engineering: In Situ Forming, Silanized Hyaluronic Acid Hydrogels with Fine Control Over Mechanical Properties and In Vivo Degradation for Tissue Engineering Applications (Adv. Healthcare Mater. 19/2020). Adv Healthc Mater 2020. [DOI: 10.1002/adhm.202070068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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27
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Flegeau K, Toquet C, Rethore G, d'Arros C, Messager L, Halgand B, Dupont D, Autrusseau F, Lesoeur J, Veziers J, Bordat P, Bresin A, Guicheux J, Delplace V, Gautier H, Weiss P. In Situ Forming, Silanized Hyaluronic Acid Hydrogels with Fine Control Over Mechanical Properties and In Vivo Degradation for Tissue Engineering Applications. Adv Healthc Mater 2020; 9:e2000981. [PMID: 32864869 DOI: 10.1002/adhm.202000981] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 08/09/2020] [Indexed: 12/19/2022]
Abstract
In situ forming hydrogels that can be injected into tissues in a minimally-invasive fashion are appealing as delivery vehicles for tissue engineering applications. Ideally, these hydrogels should have mechanical properties matching those of the host tissue, and a rate of degradation adapted for neo-tissue formation. Here, the development of in situ forming hyaluronic acid hydrogels based on the pH-triggered condensation of silicon alkoxide precursors into siloxanes is reported. Upon solubilization and pH adjustment, the low-viscosity precursor solutions are easily injectable through fine-gauge needles prior to in situ gelation. Tunable mechanical properties (stiffness from 1 to 40 kPa) and associated tunable degradability (from 4 days to more than 3 weeks in vivo) are obtained by varying the degree of silanization (from 4.3% to 57.7%) and molecular weight (120 and 267 kDa) of the hyaluronic acid component. Following cell encapsulation, high cell viability (> 80%) is obtained for at least 7 days. Finally, the in vivo biocompatibility of silanized hyaluronic acid gels is verified in a subcutaneous mouse model and a relationship between the inflammatory response and the crosslink density is observed. Silanized hyaluronic acid hydrogels constitute a tunable hydrogel platform for material-assisted cell therapies and tissue engineering applications.
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Affiliation(s)
- Killian Flegeau
- UFR Odontologie Université de Nantes Nantes F‐44042 France
- HTL S.A.S 7 Rue Alfred Kastler Javené 35133 France
| | - Claire Toquet
- Department of Pathology University Hospital of Nantes Nantes F‐44042 France
| | - Gildas Rethore
- Université de Nantes ONIRIS INSERM Regenerative Medicine and Skeleton, RMeS, UMR 1229 1 Pl A Ricordeau Nantes F‐44042 France
- UFR Odontologie Université de Nantes Nantes F‐44042 France
- CHU Nantes PHU4 OTONN Nantes F‐44042 France
| | - Cyril d'Arros
- Université de Nantes ONIRIS INSERM Regenerative Medicine and Skeleton, RMeS, UMR 1229 1 Pl A Ricordeau Nantes F‐44042 France
- UFR Odontologie Université de Nantes Nantes F‐44042 France
| | - Léa Messager
- HTL S.A.S 7 Rue Alfred Kastler Javené 35133 France
| | - Boris Halgand
- Université de Nantes ONIRIS INSERM Regenerative Medicine and Skeleton, RMeS, UMR 1229 1 Pl A Ricordeau Nantes F‐44042 France
- UFR Odontologie Université de Nantes Nantes F‐44042 France
- CHU Nantes PHU4 OTONN Nantes F‐44042 France
| | - Davy Dupont
- HTL S.A.S 7 Rue Alfred Kastler Javené 35133 France
| | - Florent Autrusseau
- Université de Nantes ONIRIS INSERM Regenerative Medicine and Skeleton, RMeS, UMR 1229 1 Pl A Ricordeau Nantes F‐44042 France
- UFR Odontologie Université de Nantes Nantes F‐44042 France
| | - Julie Lesoeur
- Université de Nantes ONIRIS INSERM Regenerative Medicine and Skeleton, RMeS, UMR 1229 1 Pl A Ricordeau Nantes F‐44042 France
- UFR Odontologie Université de Nantes Nantes F‐44042 France
- SC3M SFR Santé F. Bonamy FED 4203 UMS Inserm 016 CNRS 3556 Nantes F‐44042 France
| | - Joëlle Veziers
- Université de Nantes ONIRIS INSERM Regenerative Medicine and Skeleton, RMeS, UMR 1229 1 Pl A Ricordeau Nantes F‐44042 France
- CHU Nantes PHU4 OTONN Nantes F‐44042 France
- SC3M SFR Santé F. Bonamy FED 4203 UMS Inserm 016 CNRS 3556 Nantes F‐44042 France
| | | | | | - Jérôme Guicheux
- Université de Nantes ONIRIS INSERM Regenerative Medicine and Skeleton, RMeS, UMR 1229 1 Pl A Ricordeau Nantes F‐44042 France
- UFR Odontologie Université de Nantes Nantes F‐44042 France
- CHU Nantes PHU4 OTONN Nantes F‐44042 France
| | - Vianney Delplace
- Université de Nantes ONIRIS INSERM Regenerative Medicine and Skeleton, RMeS, UMR 1229 1 Pl A Ricordeau Nantes F‐44042 France
- UFR Odontologie Université de Nantes Nantes F‐44042 France
| | - Hélène Gautier
- Université de Nantes ONIRIS INSERM Regenerative Medicine and Skeleton, RMeS, UMR 1229 1 Pl A Ricordeau Nantes F‐44042 France
- UFR Odontologie Université de Nantes Nantes F‐44042 France
- Université de Nantes Faculté de Pharmacie Laboratoire de Pharmacie Galénique Nantes F‐44042 France
| | - Pierre Weiss
- Université de Nantes ONIRIS INSERM Regenerative Medicine and Skeleton, RMeS, UMR 1229 1 Pl A Ricordeau Nantes F‐44042 France
- UFR Odontologie Université de Nantes Nantes F‐44042 France
- CHU Nantes PHU4 OTONN Nantes F‐44042 France
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28
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Lapidot Y, Amir A, Ben-Simon S, Veitsman E, Cohen-Ezra O, Davidov Y, Weiss P, Bradichevski T, Segev S, Koren O, Ben-Ari Z, Safran M. Alterations of the salivary and fecal microbiome in patients with primary sclerosing cholangitis. Hepatol Int 2020; 15:191-201. [PMID: 32949377 DOI: 10.1007/s12072-020-10089-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [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] [Received: 04/15/2020] [Accepted: 08/26/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND Primary sclerosing cholangitis (PSC) is a chronic, progressive liver disease known for its frequent concurrence with inflammatory bowel disease. PSC can progress to cirrhosis, end-stage liver disease, hepatobiliary cancer, and/or colorectal cancer. The etiopathogenesis of PSC remains poorly understood, and, as such, pharmacotherapy has yet to be definitively established. Little is known about the salivary microbiome in PSC and PSC-IBD. This study aimed to evaluate the oral microbiome of patients with PSC, with association to these patient's fecal microbial composition. METHODS Saliva, fecal samples and Food Frequency Questionnaires were collected from 35 PSC patients with or without concomitant inflammatory bowel disease and 30 age- and BMI-matched healthy volunteers. 16S rRNA gene sequencing was performed using Illumina MiSeq platform. RESULTS The salivary microbial signature of PSC was significantly altered as compared to healthy controls, independent of concomitant IBD, and was comprised of 19 significantly altered species, of which, eight species were consistently overrepresented in both fecal and saliva of patients with PSC, including Veillonella, Scardovia and Streptococcus. CONCLUSIONS PSC is characterized by microbial dysbiosis in the gut and the salivary microbiome, independently from IBD. The PSC dysbiotic signature includes a reduction in autochthonous bacteria and an increased relative abundance of pathogenic bacteria, including an invasion of oral bacteria to the gut. PSC is a strong modulator of the microbial profile, in the gut and the oral microbiome. These results may lead to the development of biomarkers for screening and early diagnosis or the development of personalized medicine in PSC.
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Affiliation(s)
- Y Lapidot
- Liver Research Laboratory, Sheba Medical Center, Tel Hashomer, Israel. .,Liver Diseases Center, Sheba Medical Center, Tel Hashomer, Israel. .,The Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel.
| | - A Amir
- Cancer Research Center, Sheba Medical Center, Ramat-Gan, Israel
| | - S Ben-Simon
- Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - E Veitsman
- Liver Diseases Center, Sheba Medical Center, Tel Hashomer, Israel.,The Liver Unit, Rambam Health Care Campus, Haifa, Israel
| | - O Cohen-Ezra
- Liver Diseases Center, Sheba Medical Center, Tel Hashomer, Israel
| | - Y Davidov
- Liver Diseases Center, Sheba Medical Center, Tel Hashomer, Israel
| | - P Weiss
- Liver Diseases Center, Sheba Medical Center, Tel Hashomer, Israel
| | - T Bradichevski
- Liver Diseases Center, Sheba Medical Center, Tel Hashomer, Israel
| | - S Segev
- Medical Screening Unit, Sheba Medical Center, Tel Hashomer, Israel
| | - O Koren
- Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - Z Ben-Ari
- Liver Research Laboratory, Sheba Medical Center, Tel Hashomer, Israel.,Liver Diseases Center, Sheba Medical Center, Tel Hashomer, Israel.,The Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - M Safran
- Liver Research Laboratory, Sheba Medical Center, Tel Hashomer, Israel.,Liver Diseases Center, Sheba Medical Center, Tel Hashomer, Israel
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29
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Carrancá M, Griveau L, Remoué N, Lorion C, Weiss P, Orea V, Sigaudo-Roussel D, Faye C, Ferri-Angulo D, Debret R, Sohier J. Versatile lysine dendrigrafts and polyethylene glycol hydrogels with inherent biological properties: in vitro cell behavior modulation and in vivo biocompatibility. J Biomed Mater Res A 2020; 109:926-937. [PMID: 32779367 DOI: 10.1002/jbm.a.37083] [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] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 07/27/2020] [Accepted: 08/03/2020] [Indexed: 12/22/2022]
Abstract
Poly(ethylene glycol) (PEG) hydrogels have been extensively used as scaffolds for tissue engineering applications, owing to their biocompatibility, chemical versatility, and tunable mechanical properties. However, their bio-inert properties require them to be associated with additional functional moieties to interact with cells. To circumvent this need, we propose here to reticulate PEG molecules with poly(L-lysine) dendrigrafts (DGL) to provide intrinsic cell functionalities to PEG-based hydrogels. The physico-chemical characteristics of the resulting hydrogels were studied in regard of the concentration of each component. With increasing amounts of DGL, the cross-linking time and swelling ratio could be decreased, conversely to mechanical properties, which could be tailored from 7.7 ± 0.7 to 90 ± 28.8 kPa. Furthermore, fibroblasts adhesion, viability, and morphology on hydrogels were then assessed. While cell adhesion significantly increased with the concentration of DGL, cell viability was dependant of the ratio of DGL and PEG. Cell morphology and proliferation; however, appeared mainly related to the overall hydrogel rigidity. To allow cell infiltration and cell growth in 3D, the hydrogels were rendered porous. The biocompatibility of resulting hydrogels of different compositions and porosities was evaluated by 3 week subcutaneous implantations in mice. Hydrogels allowed an extensive cellular infiltration with a mild foreign body reaction, histological evidence of hydrogel degradation, and neovascularization.
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Affiliation(s)
- Mariana Carrancá
- Laboratory of Tissue Biology and Therapeutic Engineering, IBCP, CNRS Université, Lyon, France.,Laboratory for Materials Engineering and Science, CNRS INSA, Villeurbanne, France
| | - Louise Griveau
- Laboratory of Tissue Biology and Therapeutic Engineering, IBCP, CNRS Université, Lyon, France.,Laboratory for Materials Engineering and Science, CNRS INSA, Villeurbanne, France
| | - Noëlle Remoué
- Laboratory of Tissue Biology and Therapeutic Engineering, IBCP, CNRS Université, Lyon, France
| | - Chloé Lorion
- Laboratory of Tissue Biology and Therapeutic Engineering, IBCP, CNRS Université, Lyon, France
| | - Pierre Weiss
- INSERM, Laboratory of Osteo-Articlular and Dental Engineering, Nantes, France
| | - Valérie Orea
- Laboratory of Tissue Biology and Therapeutic Engineering, IBCP, CNRS Université, Lyon, France
| | | | | | - Daniel Ferri-Angulo
- Laboratory for Materials Engineering and Science, CNRS INSA, Villeurbanne, France
| | - Romain Debret
- Laboratory of Tissue Biology and Therapeutic Engineering, IBCP, CNRS Université, Lyon, France
| | - Jérôme Sohier
- Laboratory of Tissue Biology and Therapeutic Engineering, IBCP, CNRS Université, Lyon, France.,Laboratory for Materials Engineering and Science, CNRS INSA, Villeurbanne, France
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30
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Lazarus C, Weiss P, El Gueddari L, Mauconduit F, Massire A, Ripart M, Vignaud A, Ciuciu P. 3D variable-density SPARKLING trajectories for high-resolution T2*-weighted magnetic resonance imaging. NMR Biomed 2020; 33:e4349. [PMID: 32613699 DOI: 10.1002/nbm.4349] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 04/28/2020] [Accepted: 05/14/2020] [Indexed: 06/11/2023]
Abstract
We have recently proposed a new optimization algorithm called SPARKLING (Spreading Projection Algorithm for Rapid K-space sampLING) to design efficient compressive sampling patterns for magnetic resonance imaging (MRI). This method has a few advantages over conventional non-Cartesian trajectories such as radial lines or spirals: i) it allows to sample the k-space along any arbitrary density while the other two are restricted to radial densities and ii) it optimizes the gradient waveforms for a given readout time. Here, we introduce an extension of the SPARKLING method for 3D imaging by considering both stacks-of-SPARKLING and fully 3D SPARKLING trajectories. Our method allowed to achieve an isotropic resolution of 600 μm in just 45 seconds for T2∗-weighted ex vivo brain imaging at 7 Tesla over a field-of-view of 200 × 200 × 140 mm3 . Preliminary in vivo human brain data shows that a stack-of-SPARKLING is less subject to off-resonance artifacts than a stack-of-spirals.
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Affiliation(s)
- Carole Lazarus
- CEA, CNRS, BAOBAB, NeuroSpin, Gif-sur-Yvette cedex, 91191, France
- Université Paris-Saclay, France
- INRIA, Parietal, Palaiseau, 91120, France
| | - Pierre Weiss
- ITAV USR3505 CNRS, Toulouse, 31000, France
- IMT UMR 5219 CNRS, Toulouse, 31400, France
- Université de Toulouse, France
| | - Loubna El Gueddari
- CEA, CNRS, BAOBAB, NeuroSpin, Gif-sur-Yvette cedex, 91191, France
- Université Paris-Saclay, France
- INRIA, Parietal, Palaiseau, 91120, France
| | | | - Aurélien Massire
- CEA, CNRS, BAOBAB, NeuroSpin, Gif-sur-Yvette cedex, 91191, France
| | - Mathilde Ripart
- CEA, CNRS, BAOBAB, NeuroSpin, Gif-sur-Yvette cedex, 91191, France
- Université Paris-Saclay, France
| | - Alexandre Vignaud
- CEA, CNRS, BAOBAB, NeuroSpin, Gif-sur-Yvette cedex, 91191, France
- Université Paris-Saclay, France
| | - Philippe Ciuciu
- CEA, CNRS, BAOBAB, NeuroSpin, Gif-sur-Yvette cedex, 91191, France
- Université Paris-Saclay, France
- INRIA, Parietal, Palaiseau, 91120, France
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31
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Dréno M, Bléry P, Guicheux J, Weiss P, Malard O, Espitalier F. Development of a Rat Model of Mandibular Irradiation Sequelae for Preclinical Studies of Bone Repair. Tissue Eng Part C Methods 2020; 26:447-455. [PMID: 32729379 DOI: 10.1089/ten.tec.2020.0109] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Repairing mandibular bone defects after radiotherapy of the upper aerodigestive tract is clinically challenging. Although bone tissue engineering has recently generated a number of innovative treatment approaches for osteoradionecrosis (ORN), these modalities must be evaluated preclinically in a relevant, reproducible, animal model. The objective of this study was to evaluate a novel rat model of mandibular irradiation sequelae, with a focus on the adverse effects of radiotherapy on bone structure, intraosseous vascularization, and bone regeneration. Rats were irradiated with a single 80 Gy dose to the jaws. Three weeks after irradiation, mandibular bone defects of different sizes (0, 1, 3, or 5 mm) were produced in each hemimandible. Five weeks after the surgical procedure, the animals were euthanized. Explanted mandibular samples were qualitatively and quantitatively assessed for bone formation, bone structure, and intraosseous vascular volume by using micro-computed tomography, scanning electron microscopy, and histology. Twenty irradiated hemimandibles and 20 nonirradiated hemimandibles were included in the study. The bone and vessel volumes were significantly lower in the irradiated group. The extent of bone remodeling was inversely related to the defect size. In the irradiated group, scanning electron microscopy revealed a large number of polycyclic gaps consistent with periosteocytic lysis (described as being pathognomonic for ORN). This feature was correlated with elevated osteoclastic activity in a histological assessment. In the irradiated areas, the critical-sized defect was 3 mm. Hence, our rat model of mandibular irradiation sequelae showed hypovascularization and osteopenia. Impact statement Repairing mandibular bone defects after radiotherapy of the upper aerodigestive tract is clinically challenging. Novel tissue engineering approaches for healing irradiated bone must first be assessed in animal models. The current rat model of mandibular irradiation sequelae is based on tooth extraction after radiotherapy. However, the mucosal sequelae of radiotherapy often prevent the retention of tissue-engineered biomaterials within the bone defect. We used a submandibular approach to create a new rat model of mandibular irradiation sequelae, which enables the stable retention of biomaterials within the bone defect and should thus facilitate the assessment of bone regeneration.
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Affiliation(s)
- Marine Dréno
- Service d'ORL et de Chirurgie Cervico-Faciale, Centre Hospitalier Universitaire de Nantes, Nantes, France.,INSERM U1229 RMeS, Université de Nantes, Nantes, France.,PHU4 OTONN, Centre Hospitalier Universitaire de Nantes, Hôtel Dieu, Nantes, France
| | - Pauline Bléry
- INSERM U1229 RMeS, Université de Nantes, Nantes, France.,PHU4 OTONN, Centre Hospitalier Universitaire de Nantes, Hôtel Dieu, Nantes, France.,Service d'Odontologie Restauratrice et Chirurgicale, Centre Hospitalier Universitaire de Nantes, Nantes, France
| | - Jérôme Guicheux
- INSERM U1229 RMeS, Université de Nantes, Nantes, France.,PHU4 OTONN, Centre Hospitalier Universitaire de Nantes, Hôtel Dieu, Nantes, France
| | - Pierre Weiss
- INSERM U1229 RMeS, Université de Nantes, Nantes, France.,PHU4 OTONN, Centre Hospitalier Universitaire de Nantes, Hôtel Dieu, Nantes, France.,Service d'Odontologie Restauratrice et Chirurgicale, Centre Hospitalier Universitaire de Nantes, Nantes, France
| | - Olivier Malard
- Service d'ORL et de Chirurgie Cervico-Faciale, Centre Hospitalier Universitaire de Nantes, Nantes, France.,INSERM U1229 RMeS, Université de Nantes, Nantes, France.,PHU4 OTONN, Centre Hospitalier Universitaire de Nantes, Hôtel Dieu, Nantes, France
| | - Florent Espitalier
- Service d'ORL et de Chirurgie Cervico-Faciale, Centre Hospitalier Universitaire de Nantes, Nantes, France.,INSERM U1229 RMeS, Université de Nantes, Nantes, France.,PHU4 OTONN, Centre Hospitalier Universitaire de Nantes, Hôtel Dieu, Nantes, France
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32
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Aguzzi J, Flexas MM, Flögel S, Lo Iacono C, Tangherlini M, Costa C, Marini S, Bahamon N, Martini S, Fanelli E, Danovaro R, Stefanni S, Thomsen L, Riccobene G, Hildebrandt M, Masmitja I, Del Rio J, Clark EB, Branch A, Weiss P, Klesh AT, Schodlok MP. Exo-Ocean Exploration with Deep-Sea Sensor and Platform Technologies. Astrobiology 2020; 20:897-915. [PMID: 32267735 DOI: 10.1089/ast.2019.2129] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
One of Saturn's largest moons, Enceladus, possesses a vast extraterrestrial ocean (i.e., exo-ocean) that is increasingly becoming the hotspot of future research initiatives dedicated to the exploration of putative life. Here, a new bio-exploration concept design for Enceladus' exo-ocean is proposed, focusing on the potential presence of organisms across a wide range of sizes (i.e., from uni- to multicellular and animal-like), according to state-of-the-art sensor and robotic platform technologies used in terrestrial deep-sea research. In particular, we focus on combined direct and indirect life-detection capabilities, based on optoacoustic imaging and passive acoustics, as well as molecular approaches. Such biologically oriented sampling can be accompanied by concomitant geochemical and oceanographic measurements to provide data relevant to exo-ocean exploration and understanding. Finally, we describe how this multidisciplinary monitoring approach is currently enabled in terrestrial oceans through cabled (fixed) observatories and their related mobile multiparametric platforms (i.e., Autonomous Underwater and Remotely Operated Vehicles, as well as crawlers, rovers, and biomimetic robots) and how their modified design can be used for exo-ocean exploration.
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Affiliation(s)
- J Aguzzi
- Instituto de Ciencias del Mar (ICM-CSIC), Barcelona, Spain
- Stazione Zoologica Anton Dohrn, Naples, Italy
| | - M M Flexas
- California Institute of Technology, Pasadena, California, USA
| | - S Flögel
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
| | - C Lo Iacono
- Instituto de Ciencias del Mar (ICM-CSIC), Barcelona, Spain
- National Oceanographic Center (NOC), University of Southampton, Southampton, United Kingdom
| | | | - C Costa
- Consiglio per la ricerca in agricoltura e l'analisi dell'economia agraria (CREA)-Centro di ricerca Ingegneria e Trasformazioni agroalimentari - Monterotondo, Rome, Italy
| | - S Marini
- Stazione Zoologica Anton Dohrn, Naples, Italy
- National Research Council of Italy (CNR), Institute of Marine Sciences, La Spezia, Italy
| | - N Bahamon
- Instituto de Ciencias del Mar (ICM-CSIC), Barcelona, Spain
- Centro de Estudios Avanzados de Blanes (CEAB-CSIC), Blanes, Spain
| | - S Martini
- Sorbonne Université, CNRS, Laboratoire d'Océanographie de Villefranche, Villefranche-sur-mer, France
| | - E Fanelli
- Stazione Zoologica Anton Dohrn, Naples, Italy
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Ancona, Italy
| | - R Danovaro
- Stazione Zoologica Anton Dohrn, Naples, Italy
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Ancona, Italy
| | - S Stefanni
- Stazione Zoologica Anton Dohrn, Naples, Italy
| | | | - G Riccobene
- Istituto Nazionale di Fisica Nucleare (INFN), Laboratori Nazionali del Sud, Catania, Italy
| | - M Hildebrandt
- German Research Center for Artificial Intelligence (DFKI), Bremen, Germany
| | - I Masmitja
- SARTI, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain
| | - J Del Rio
- SARTI, Universitat Politècnica de Catalunya (UPC), Barcelona, Spain
| | - E B Clark
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA
| | - A Branch
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA
| | | | - A T Klesh
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA
| | - M P Schodlok
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA
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Kamnerdsiri W, Rodríguez Martinez J, Fox C, Weiss P. P-02-5 Clinical Correlation Between Erectile Function and Ejaculatory Function in the Czech Male Population. J Sex Med 2020. [DOI: 10.1016/j.jsxm.2020.04.162] [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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Mathieu N, Moussa L, Demarquay C, Semont A, Linard C, Chapel A, Milliat F, Barritault D, Weiss P. Strategies to improve Adipose Mesenchymal Stromal Cell Therapeutic Effect: Application to pelvic radiotherapy side effects. Cytotherapy 2020. [DOI: 10.1016/j.jcyt.2020.03.377] [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: 11/27/2022]
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Paré A, Charbonnier B, Tournier P, Vignes C, Veziers J, Lesoeur J, Laure B, Bertin H, De Pinieux G, Cherrier G, Guicheux J, Gauthier O, Corre P, Marchat D, Weiss P. Correction to Tailored Three-Dimensionally Printed Triply Periodic Calcium Phosphate Implants: A Preclinical Study for Craniofacial Bone Repair. ACS Biomater Sci Eng 2020; 6:1821. [DOI: 10.1021/acsbiomaterials.0c00167] [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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Boyer C, Réthoré G, Weiss P, d’Arros C, Lesoeur J, Vinatier C, Halgand B, Geffroy O, Fusellier M, Vaillant G, Roy P, Gauthier O, Guicheux J. A Self-Setting Hydrogel of Silylated Chitosan and Cellulose for the Repair of Osteochondral Defects: From in vitro Characterization to Preclinical Evaluation in Dogs. Front Bioeng Biotechnol 2020; 8:23. [PMID: 32117912 PMCID: PMC7025592 DOI: 10.3389/fbioe.2020.00023] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 01/10/2020] [Indexed: 12/12/2022] Open
Abstract
Articular cartilage (AC) may be affected by many injuries including traumatic lesions that predispose to osteoarthritis. Currently there is no efficient cure for cartilage lesions. In that respect, new strategies for regenerating AC are contemplated with interest. In this context, we aim to develop and characterize an injectable, self-hardening, mechanically reinforced hydrogel (Si-HPCH) composed of silanised hydroxypropymethyl cellulose (Si-HPMC) mixed with silanised chitosan. The in vitro cytocompatibility of Si-HPCH was tested using human adipose stromal cells (hASC). In vivo, we first mixed Si-HPCH with hASC to observe cell viability after implantation in nude mice subcutis. Si-HPCH associated or not with canine ASC (cASC), was then tested for the repair of osteochondral defects in canine femoral condyles. Our data demonstrated that Si-HPCH supports hASC viability in culture. Moreover, Si-HPCH allows the transplantation of hASC in the subcutis of nude mice while maintaining their viability and secretory activity. In the canine osteochondral defect model, while the empty defects were only partially filled with a fibrous tissue, defects filled with Si-HPCH with or without cASC, revealed a significant osteochondral regeneration. To conclude, Si-HPCH is an injectable, self-setting and cytocompatible hydrogel able to support the in vitro and in vivo viability and activity of hASC as well as the regeneration of osteochondral defects in dogs when implanted alone or with ASC.
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Affiliation(s)
- Cécile Boyer
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, Université de Nantes, ONIRIS, Nantes, France
- Université de Nantes, UFR Odontologie, Nantes, France
| | - Gildas Réthoré
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, Université de Nantes, ONIRIS, Nantes, France
- Université de Nantes, UFR Odontologie, Nantes, France
- CHU Nantes, Service d’Odontologie Restauratrice et Chirurgicale, PHU4 OTONN, Nantes, France
| | - Pierre Weiss
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, Université de Nantes, ONIRIS, Nantes, France
- Université de Nantes, UFR Odontologie, Nantes, France
- CHU Nantes, Service d’Odontologie Restauratrice et Chirurgicale, PHU4 OTONN, Nantes, France
| | - Cyril d’Arros
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, Université de Nantes, ONIRIS, Nantes, France
- Université de Nantes, UFR Odontologie, Nantes, France
| | - Julie Lesoeur
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, Université de Nantes, ONIRIS, Nantes, France
- Université de Nantes, UFR Odontologie, Nantes, France
- SC3M – “Electron Microscopy, Microcharacterization and Functional Morphohistology Imaging” Core Facility, Structure Fédérative de Recherche Franc̨ois Bonamy, INSERM – UMS016, CNRS 3556, CHU Nantes, Université de Nantes, Nantes, France
| | - Claire Vinatier
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, Université de Nantes, ONIRIS, Nantes, France
- Université de Nantes, UFR Odontologie, Nantes, France
- SC3M – “Electron Microscopy, Microcharacterization and Functional Morphohistology Imaging” Core Facility, Structure Fédérative de Recherche Franc̨ois Bonamy, INSERM – UMS016, CNRS 3556, CHU Nantes, Université de Nantes, Nantes, France
| | - Boris Halgand
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, Université de Nantes, ONIRIS, Nantes, France
- Université de Nantes, UFR Odontologie, Nantes, France
- CHU Nantes, PHU4 OTONN, Nantes, France
| | - Olivier Geffroy
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, Université de Nantes, ONIRIS, Nantes, France
- Université de Nantes, UFR Odontologie, Nantes, France
- Centre of Research and Preclinical Investigation (C.R.I.P.), ONIRIS, Nantes, France
| | - Marion Fusellier
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, Université de Nantes, ONIRIS, Nantes, France
- Université de Nantes, UFR Odontologie, Nantes, France
- Centre of Research and Preclinical Investigation (C.R.I.P.), ONIRIS, Nantes, France
| | - Gildas Vaillant
- CHU Nantes, PHU4 OTONN, Nantes, France
- Centre of Research and Preclinical Investigation (C.R.I.P.), ONIRIS, Nantes, France
| | - Patrice Roy
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, Université de Nantes, ONIRIS, Nantes, France
- Université de Nantes, UFR Odontologie, Nantes, France
- Centre of Research and Preclinical Investigation (C.R.I.P.), ONIRIS, Nantes, France
| | - Olivier Gauthier
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, Université de Nantes, ONIRIS, Nantes, France
- Université de Nantes, UFR Odontologie, Nantes, France
- Centre of Research and Preclinical Investigation (C.R.I.P.), ONIRIS, Nantes, France
| | - Jérôme Guicheux
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, Université de Nantes, ONIRIS, Nantes, France
- Université de Nantes, UFR Odontologie, Nantes, France
- SC3M – “Electron Microscopy, Microcharacterization and Functional Morphohistology Imaging” Core Facility, Structure Fédérative de Recherche Franc̨ois Bonamy, INSERM – UMS016, CNRS 3556, CHU Nantes, Université de Nantes, Nantes, France
- CHU Nantes, PHU4 OTONN, Nantes, France
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Paré A, Charbonnier B, Tournier P, Vignes C, Veziers J, Lesoeur J, Laure B, Bertin H, De Pinieux G, Cherrier G, Guicheux J, Gauthier O, Corre P, Marchat D, Weiss P. Tailored Three-Dimensionally Printed Triply Periodic Calcium Phosphate Implants: A Preclinical Study for Craniofacial Bone Repair. ACS Biomater Sci Eng 2020; 6:553-563. [PMID: 32158932 PMCID: PMC7064275 DOI: 10.1021/acsbiomaterials.9b01241] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Finding alternative strategies for the regeneration of craniofacial bone defects (CSD), such as combining a synthetic ephemeral calcium phosphate (CaP) implant and/or active substances and cells, would contribute to solving this reconstructive roadblock. However, CaP's architectural features (i.e., architecture and composition) still need to be tailored, and the use of processed stem cells and synthetic active substances (e.g., recombinant human bone morphogenetic protein 2) drastically limits the clinical application of such approaches. Focusing on solutions that are directly transposable to the clinical setting, biphasic calcium phosphate (BCP) and carbonated hydroxyapatite (CHA) 3D-printed disks with a triply periodic minimal structure (TPMS) were implanted in calvarial critical-sized defects (rat model) with or without addition of total bone marrow (TBM). Bone regeneration within the defect was evaluated, and the outcomes were compared to a standard-care procedure based on BCP granules soaked with TBM (positive control). After 7 weeks, de novo bone formation was significantly greater in the CHA disks + TBM group than in the positive controls (3.33 mm3 and 2.15 mm3, respectively, P=0.04). These encouraging results indicate that both CHA and TPMS architectures are potentially advantageous in the repair of CSDs and that this one-step procedure warrants further clinical investigation.
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Affiliation(s)
- Arnaud Paré
- INSERM, U 1229, Laboratoire Regenerative Medicine and Skeleton (RMeS), 1 place Alexis Ricordeau, Nantes F - 44042, France
- Service de Chirurgie Maxillo faciale, Plastique et Brulés, Hôpital Trousseau, CHU de Tours, Avenue de la République, Chambray-lès-Tours F – 37170, France
- Université de Tours, UFR Médecine, 2 boulevard Tonnellé, Tours F - 37000, France
- Université́ de Nantes, UFR Odontologie, 1 place Alexis Ricordeau, Nantes F - 44042, France
| | - Baptiste Charbonnier
- Mines Saint-Etienne, Univ Lyon, Univ Jean Monnet, INSERM, U 1059 Sainbiose, Centre CIS, 158 Cours Fauriel, CS 62362, Saint-Etienne F – 42023, France
| | - Pierre Tournier
- INSERM, U 1229, Laboratoire Regenerative Medicine and Skeleton (RMeS), 1 place Alexis Ricordeau, Nantes F - 44042, France
- Université́ de Nantes, UFR Odontologie, 1 place Alexis Ricordeau, Nantes F - 44042, France
| | - Caroline Vignes
- INSERM, U 1229, Laboratoire Regenerative Medicine and Skeleton (RMeS), 1 place Alexis Ricordeau, Nantes F - 44042, France
| | - Joëlle Veziers
- INSERM, U 1229, Laboratoire Regenerative Medicine and Skeleton (RMeS), 1 place Alexis Ricordeau, Nantes F - 44042, France
| | - Julie Lesoeur
- INSERM, U 1229, Laboratoire Regenerative Medicine and Skeleton (RMeS), 1 place Alexis Ricordeau, Nantes F - 44042, France
| | - Boris Laure
- Service de Chirurgie Maxillo faciale, Plastique et Brulés, Hôpital Trousseau, CHU de Tours, Avenue de la République, Chambray-lès-Tours F – 37170, France
- Université de Tours, UFR Médecine, 2 boulevard Tonnellé, Tours F - 37000, France
| | - Hélios Bertin
- Université́ de Nantes, UFR Odontologie, 1 place Alexis Ricordeau, Nantes F - 44042, France
- Service de chirurgie Maxillo-faciale et stomatologie, CHU de Nantes, 1 place Alexis Ricordeau, Nantes F - 44093, France
| | - Gonzague De Pinieux
- Université de Tours, UFR Médecine, 2 boulevard Tonnellé, Tours F - 37000, France
- Service d’Anatomo-cyto-pathologie, Hôpital Trousseau, CHU de Tours, Avenue de la République, Chambray-lès-Tours F – 37000, France
| | - Grégory Cherrier
- Université de Tours, UFR Médecine, 2 boulevard Tonnellé, Tours F - 37000, France
- Service d’Anatomo-cyto-pathologie, Hôpital Trousseau, CHU de Tours, Avenue de la République, Chambray-lès-Tours F – 37000, France
| | - Jérome Guicheux
- INSERM, U 1229, Laboratoire Regenerative Medicine and Skeleton (RMeS), 1 place Alexis Ricordeau, Nantes F - 44042, France
- Université́ de Nantes, UFR Odontologie, 1 place Alexis Ricordeau, Nantes F - 44042, France
| | - Olivier Gauthier
- INSERM, U 1229, Laboratoire Regenerative Medicine and Skeleton (RMeS), 1 place Alexis Ricordeau, Nantes F - 44042, France
- Université́ de Nantes, UFR Odontologie, 1 place Alexis Ricordeau, Nantes F - 44042, France
- ONIRIS Nantes-Atlantic College of Veterinary Medicine, Centre de rechecherche et d’investigation préclinique (CRIP), 101 route de Gachet, Nantes F - 44300, France
| | - Pierre Corre
- INSERM, U 1229, Laboratoire Regenerative Medicine and Skeleton (RMeS), 1 place Alexis Ricordeau, Nantes F - 44042, France
- Université́ de Nantes, UFR Odontologie, 1 place Alexis Ricordeau, Nantes F - 44042, France
- Service de chirurgie Maxillo-faciale et stomatologie, CHU de Nantes, 1 place Alexis Ricordeau, Nantes F - 44093, France
| | - David Marchat
- Mines Saint-Etienne, Univ Lyon, Univ Jean Monnet, INSERM, U 1059 Sainbiose, Centre CIS, 158 Cours Fauriel, CS 62362, Saint-Etienne F – 42023, France
| | - Pierre Weiss
- INSERM, U 1229, Laboratoire Regenerative Medicine and Skeleton (RMeS), 1 place Alexis Ricordeau, Nantes F - 44042, France
- Université́ de Nantes, UFR Odontologie, 1 place Alexis Ricordeau, Nantes F - 44042, France
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Olive M, Boyer C, Lesoeur J, Thorin C, Weiss P, Fusellier M, Gauthier O. Preliminary evaluation of an osteochondral autograft, a prosthetic implant, and a biphasic absorbable implant for osteochondral reconstruction in a sheep model. Vet Surg 2020; 49:570-581. [PMID: 31916628 PMCID: PMC7154554 DOI: 10.1111/vsu.13373] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 10/11/2018] [Accepted: 11/06/2018] [Indexed: 12/16/2022]
Abstract
OBJECTIVE To determine the ability of three implants to enhance the healing of osteochondral defects: (1) a biphasic construct composed of calcium phosphate (CaP) and chitosan/cellulosic polymer, (2) a titanium-polyurethane implant, and (3) an osteochondral autograft. STUDY DESIGN Experimental study. ANIMALS Ten adult female sheep. METHODS In five sheep, an 8-mm diameter osteochondral defect was created on the medial femoral condyle of a stifle and filled with a synthetic titanium-polyurethane implant. In five sheep, a similar defect was filled with an osteochondral autograft, and the donor site was filled with a biphasic construct combining CaP granules and a chitosan/cellulosic polymer. Sheep were monitored daily for lameness. Stifle radiographs and MRI were evaluated at 20 weeks, prior to animals being humanely killed. Surgical sites were evaluated with histology, microcomputed tomography, and scanning electron microscopy. RESULTS Clinical outcomes were satisfactory regardless of the tested biomaterials. All implants appeared in place on imaging studies. Osteointegration of prosthetic implants varied between sites, with limited ingrowth of new bone into the titanium structure. Autografts and biphasic constructs were consistently well integrated in subchondral bone. All autografts except one contained a cartilage surface, and all biphasic constructs except one partially restored hyaline cartilage surface. CONCLUSION Biphasic constructs supported hyaline cartilage and subchondral bone regeneration, although restoration of the articular cartilage was incomplete. CLINICAL IMPACT Biphasic constructs may provide an alternative treatment for osteochondral defects, offering a less invasive approach compared with autologous grafts and eliminating the requirement for a prosthetic implant.
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Affiliation(s)
- Mélanie Olive
- Department of Small Animal Surgery, Oniris Nantes-Atlantic College of Veterinary Medicine Food Science and Engineering, Nantes, France
| | - Cécile Boyer
- University of Nantes, INSERM UMR 1229, RMeS, Nantes, France
| | - Julie Lesoeur
- University of Nantes, INSERM UMR 1229, RMeS, Nantes, France
| | - Chantal Thorin
- Department of Management and Statistics, Oniris Nantes-Atlantic College of Veterinary Medicine Food Science and Engineering, Nantes, France
| | - Pierre Weiss
- University of Nantes, INSERM UMR 1229, RMeS, Nantes, France
| | - Marion Fusellier
- Department of Small Animal Surgery, Oniris Nantes-Atlantic College of Veterinary Medicine Food Science and Engineering, Nantes, France.,University of Nantes, INSERM UMR 1229, RMeS, Nantes, France
| | - Olivier Gauthier
- Department of Small Animal Surgery, Oniris Nantes-Atlantic College of Veterinary Medicine Food Science and Engineering, Nantes, France.,University of Nantes, INSERM UMR 1229, RMeS, Nantes, France
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Guerin W, Santo TSDE, Weiss P, Cipris A, Schachenmayer J, Kaiser R, Bachelard R. Collective Multimode Vacuum Rabi Splitting. Phys Rev Lett 2019; 123:243401. [PMID: 31922857 DOI: 10.1103/physrevlett.123.243401] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Indexed: 06/10/2023]
Abstract
We report the experimental observation of collective multimode vacuum Rabi splitting in free space. In contrast to optical cavities, the atoms couple to a continuum of modes, and the optical thickness of the cloud provides a measure of this coupling. The splitting, also referred as normal mode splitting, is monitored through the Rabi oscillations in the scattered intensity, and the results are fully explained by a linear-dispersion theory.
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Affiliation(s)
- W Guerin
- Université Côte d'Azur, CNRS, INPHYNI, F-06560 Valbonne, France
| | - T S do Espirito Santo
- Instituto de Física de São Carlos, Universidade de São Paulo, 13566-590 São Carlos, São Paulo, Brazil
- IPCMS (UMR 7504) and ISIS (UMR 7006), Université de Strasbourg, CNRS, 67000 Strasbourg, France
| | - P Weiss
- Université Côte d'Azur, CNRS, INPHYNI, F-06560 Valbonne, France
| | - A Cipris
- Université Côte d'Azur, CNRS, INPHYNI, F-06560 Valbonne, France
| | - J Schachenmayer
- IPCMS (UMR 7504) and ISIS (UMR 7006), Université de Strasbourg, CNRS, 67000 Strasbourg, France
| | - R Kaiser
- Université Côte d'Azur, CNRS, INPHYNI, F-06560 Valbonne, France
| | - R Bachelard
- Université Côte d'Azur, CNRS, INPHYNI, F-06560 Valbonne, France
- Departamento de Física, Universidade Federal de São Carlos, Rodovia Washington Luís, km 235-SP-310, 13565-905 São Carlos, São Paulo, Brazil
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Paré A, Bossard A, Laure B, Weiss P, Gauthier O, Corre P. Reconstruction of segmental mandibular defects: Current procedures and perspectives. Laryngoscope Investig Otolaryngol 2019; 4:587-596. [PMID: 31890875 PMCID: PMC6929581 DOI: 10.1002/lio2.325] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 10/02/2019] [Accepted: 10/21/2019] [Indexed: 11/11/2022] Open
Abstract
Background The reconstruction of segmental mandibular defects remains a challenge for the reconstructive surgeon, from both a functional and an esthetic point of view. Methods This clinical review examines the different techniques currently in use for mandibular reconstruction as related to a range of etiologies, including the different bone donor sites, the alternatives to free flaps (FFs), as well as the contribution of computer‐assisted surgery. Recent progress and the perspectives in bone tissue engineering (BTE) are also discussed. Results Osseous FF allows reliable and satisfying outcomes. However, locoregional flap, distraction osteogenesis, or even induced membrane techniques are other potential options in less favorable cases. Obtaining an engineered bone with satisfactory mechanical properties and sufficient vascular supply requires further investigations. Conclusions Osseous FF procedure remains the gold standard for segmental mandible reconstruction. BTE strategies offer promising alternatives.
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Affiliation(s)
- Arnaud Paré
- Service de Chirurgie Maxillo Faciale Plastique et Brulés, Hôpital Trousseau, CHU de Tours Tours France.,Laboratoire Regenerative Medicine and Skeleton RMeS, France INSERM, U 1229 Nantes France.,UFR Médecine Université de Tours Tours France.,UFR Odontologie Université́ de Nantes Nantes France
| | - Adeline Bossard
- ONIRIS Nantes-Atlantic College of Veterinary Medicine Centre de Rechecherche et D'investigation Préclinique (CRIP) Nantes France
| | - Boris Laure
- Service de Chirurgie Maxillo Faciale Plastique et Brulés, Hôpital Trousseau, CHU de Tours Tours France
| | - Pierre Weiss
- Laboratoire Regenerative Medicine and Skeleton RMeS, France INSERM, U 1229 Nantes France.,UFR Odontologie Université́ de Nantes Nantes France
| | - Olivier Gauthier
- Laboratoire Regenerative Medicine and Skeleton RMeS, France INSERM, U 1229 Nantes France.,ONIRIS Nantes-Atlantic College of Veterinary Medicine Centre de Rechecherche et D'investigation Préclinique (CRIP) Nantes France
| | - Pierre Corre
- Laboratoire Regenerative Medicine and Skeleton RMeS, France INSERM, U 1229 Nantes France.,UFR Odontologie Université́ de Nantes Nantes France.,Service de Chirurgie Maxillo-Faciale et Stomatologie CHU de Nantes Nantes France
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Hivernaud V, Grimaud F, Guicheux J, Portron S, Pace R, Pilet P, Sourice S, Wuillem S, Bertin H, Roche R, Espitalier F, Weiss P, Corre P. Comparing “intra operative” tissue engineering strategies for the repair of craniofacial bone defects. Journal of Stomatology, Oral and Maxillofacial Surgery 2019; 120:432-442. [DOI: 10.1016/j.jormas.2019.01.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 12/23/2018] [Accepted: 01/03/2019] [Indexed: 01/02/2023]
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Portron S, Soueidan A, Marsden AC, Rakic M, Verner C, Weiss P, Badran Z, Struillou X. Periodontal regenerative medicine using mesenchymal stem cells and biomaterials: A systematic review of pre-clinical studies. Dent Mater J 2019; 38:867-883. [PMID: 31511473 DOI: 10.4012/dmj.2018-315] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Abstract
The aim of the systematic review was to analyze the use of mesenchymal stem cells (MSC) and biomaterial for periodontal regeneration from preclinical animal models and human. Electronic databases were searched and additional hand-search in leading journals was performed. The research strategy was achieved according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The including criteria were as follows: MSC, biomaterial, in vivo studies, with histologic and radiologic analysis and written in English. The risk of bias was assessed for individual studies. A total of 50 articles were selected and investigated in the systematic review. These results indicate that MSC and scaffold provide beneficial effects on periodontal regeneration, with no adverse effects of such interventions. Future studies need to identify the suitable association of MSC and biomaterial and to characterize the type of new cementum and the organization of the periodontal ligament fiber regeneration.
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Affiliation(s)
- Sophie Portron
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, University of Nantes.,Department of Periodontology, Faculty of Dental Surgery, University of Nantes
| | - Assem Soueidan
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, University of Nantes.,Department of Periodontology, Faculty of Dental Surgery, University of Nantes
| | - Anne-Claire Marsden
- Department of Periodontology, Faculty of Dental Surgery, University of Nantes
| | - Mia Rakic
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, University of Nantes.,Department of Periodontology, Faculty of Dental Surgery, University of Nantes
| | - Christian Verner
- Department of Periodontology, Faculty of Dental Surgery, University of Nantes
| | - Pierre Weiss
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, University of Nantes
| | - Zahi Badran
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, University of Nantes.,Department of Periodontology, Faculty of Dental Surgery, University of Nantes
| | - Xavier Struillou
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, University of Nantes.,Department of Periodontology, Faculty of Dental Surgery, University of Nantes
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Weiss P, Escande P, Bathie G, Dong Y. Contrast Invariant SNR and Isotonic Regressions. Int J Comput Vis 2019. [DOI: 10.1007/s11263-019-01161-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Aoun L, Larnier S, Weiss P, Cazales M, Herbulot A, Ducommun B, Vieu C, Lobjois V. Measure and characterization of the forces exerted by growing multicellular spheroids using microdevice arrays. PLoS One 2019; 14:e0217227. [PMID: 31120960 PMCID: PMC6532909 DOI: 10.1371/journal.pone.0217227] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 05/07/2019] [Indexed: 01/16/2023] Open
Abstract
Growing multicellular spheroids recapitulate many features of expanding microtumours, and therefore they are an attractive system for biomechanical studies. Here, we report an original approach to measure and characterize the forces exerted by proliferating multicellular spheroids. As force sensors, we used high aspect ratio PDMS pillars arranged as a ring that supports a growing breast tumour cell spheroid. After optical imaging and determination of the force application zones, we combined 3D reconstruction of the shape of each deformed PDMS pillar with the finite element method to extract the forces responsible for the experimental observation. We found that the force exerted by growing spheroids ranges between 100nN and 300nN. Moreover, the exerted force was dependent on the pillar stiffness and increased over time with spheroid growth.
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Affiliation(s)
- Laurene Aoun
- ITAV, Université de Toulouse, CNRS, UT3, Toulouse, France
- CNRS, LAAS, Toulouse, France
- Université de Toulouse, LAAS, Toulouse, France
| | - Stanislas Larnier
- CNRS, LAAS, Toulouse, France
- Université de Toulouse, LAAS, Toulouse, France
| | - Pierre Weiss
- ITAV, Université de Toulouse, CNRS, UT3, Toulouse, France
| | | | - Ariane Herbulot
- CNRS, LAAS, Toulouse, France
- Université de Toulouse, LAAS, Toulouse, France
| | - Bernard Ducommun
- ITAV, Université de Toulouse, CNRS, UT3, Toulouse, France
- CHU de Toulouse, Toulouse, France
| | - Christophe Vieu
- CNRS, LAAS, Toulouse, France
- Université de Toulouse, LAAS, Toulouse, France
- Université de Toulouse, INSA, Toulouse, France
- * E-mail: (CV); (VL)
| | - Valérie Lobjois
- ITAV, Université de Toulouse, CNRS, UT3, Toulouse, France
- * E-mail: (CV); (VL)
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Couasnay G, Bon N, Devignes CS, Sourice S, Bianchi A, Véziers J, Weiss P, Elefteriou F, Provot S, Guicheux J, Beck-Cormier S, Beck L. PiT1/Slc20a1 Is Required for Endoplasmic Reticulum Homeostasis, Chondrocyte Survival, and Skeletal Development. J Bone Miner Res 2019; 34:387-398. [PMID: 30347511 DOI: 10.1002/jbmr.3609] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [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] [Received: 04/30/2018] [Revised: 09/26/2018] [Accepted: 10/22/2018] [Indexed: 01/09/2023]
Abstract
During skeletal mineralization, the sodium-phosphate co-transporter PiT1Slc20a1 is assumed to meet the phosphate requirements of bone-forming cells, although evidence is missing. Here, we used a conditional gene deletion approach to determine the role of PiT1 in growth plate chondrocytes. We show that PiT1 ablation shortly after birth generates a rapid and massive cell death in the center of the growth plate, together with an uncompensated endoplasmic reticulum (ER) stress, characterized by morphological changes and increased Chop, Atf4, and Bip expression. PiT1 expression in chondrocytes was not found at the cell membrane but co-localized with the ER marker ERp46, and was upregulated by the unfolded protein response cascade. In addition, we identified the protein disulfide isomerase (Pdi) ER chaperone as a PiT1 binding partner and showed that PiT1 ablation impaired Pdi reductase activity. The ER stress induced by PiT1 deficiency in chondrocytes was associated with intracellular retention of aggrecan and vascular endothelial growth factor A (Vegf-A), which was rescued by overexpressing a phosphate transport-deficient mutant of PiT1. Our data thus reveal a novel, Pi-transport independent function of PiT1, as a critical modulator of ER homeostasis and chondrocyte survival during endochondral ossification. © 2018 American Society for Bone and Mineral Research.
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Affiliation(s)
- Greig Couasnay
- INSERM, Unité mixte de Recherche (UMR) 1229, Regenerative Medicine and Skeleton (RMeS), Nantes-Atlantic National College of Veterinary Medicine, Food Science and Engineering, ONIRIS, Université de Nantes, Nantes, France.,Faculty of Dental Surgery of Nantes (UFR Odontologie), Université de Nantes, Nantes, France.,Department of Molecular and Human Genetics and Orthopedic Surgery, Baylor College of Medicine, Houston, TX, USA
| | - Nina Bon
- INSERM, Unité mixte de Recherche (UMR) 1229, Regenerative Medicine and Skeleton (RMeS), Nantes-Atlantic National College of Veterinary Medicine, Food Science and Engineering, ONIRIS, Université de Nantes, Nantes, France.,Faculty of Dental Surgery of Nantes (UFR Odontologie), Université de Nantes, Nantes, France
| | - Claire-Sophie Devignes
- INSERM, UMR 1132, Centre Viggo Petersen-Hôpital Lariboisière, Paris, France.,Université Paris Diderot, Sorbonne Paris-Cité, Paris, France
| | - Sophie Sourice
- INSERM, Unité mixte de Recherche (UMR) 1229, Regenerative Medicine and Skeleton (RMeS), Nantes-Atlantic National College of Veterinary Medicine, Food Science and Engineering, ONIRIS, Université de Nantes, Nantes, France.,Faculty of Dental Surgery of Nantes (UFR Odontologie), Université de Nantes, Nantes, France
| | - Arnaud Bianchi
- National Center for Scientific Research (CNRS), UMR 7365, IMoPA, Vandœuvre-lès-Nancy, France.,Faculté de Médecine, Université de Lorraine, Vandœuvre-lès-Nancy, France
| | - Joëlle Véziers
- INSERM, Unité mixte de Recherche (UMR) 1229, Regenerative Medicine and Skeleton (RMeS), Nantes-Atlantic National College of Veterinary Medicine, Food Science and Engineering, ONIRIS, Université de Nantes, Nantes, France.,Faculty of Dental Surgery of Nantes (UFR Odontologie), Université de Nantes, Nantes, France.,PHU 4 Odontologie, Neurochirurgie, Neurotraumatologie (OTONN), CHU de Nantes University Hospital Center, Nantes, France
| | - Pierre Weiss
- INSERM, Unité mixte de Recherche (UMR) 1229, Regenerative Medicine and Skeleton (RMeS), Nantes-Atlantic National College of Veterinary Medicine, Food Science and Engineering, ONIRIS, Université de Nantes, Nantes, France.,Faculty of Dental Surgery of Nantes (UFR Odontologie), Université de Nantes, Nantes, France.,PHU 4 Odontologie, Neurochirurgie, Neurotraumatologie (OTONN), CHU de Nantes University Hospital Center, Nantes, France
| | - Florent Elefteriou
- Department of Molecular and Human Genetics and Orthopedic Surgery, Baylor College of Medicine, Houston, TX, USA
| | - Sylvain Provot
- INSERM, UMR 1132, Centre Viggo Petersen-Hôpital Lariboisière, Paris, France.,Université Paris Diderot, Sorbonne Paris-Cité, Paris, France
| | - Jérôme Guicheux
- INSERM, Unité mixte de Recherche (UMR) 1229, Regenerative Medicine and Skeleton (RMeS), Nantes-Atlantic National College of Veterinary Medicine, Food Science and Engineering, ONIRIS, Université de Nantes, Nantes, France.,Faculty of Dental Surgery of Nantes (UFR Odontologie), Université de Nantes, Nantes, France.,PHU 4 Odontologie, Neurochirurgie, Neurotraumatologie (OTONN), CHU de Nantes University Hospital Center, Nantes, France
| | - Sarah Beck-Cormier
- INSERM, Unité mixte de Recherche (UMR) 1229, Regenerative Medicine and Skeleton (RMeS), Nantes-Atlantic National College of Veterinary Medicine, Food Science and Engineering, ONIRIS, Université de Nantes, Nantes, France.,Faculty of Dental Surgery of Nantes (UFR Odontologie), Université de Nantes, Nantes, France
| | - Laurent Beck
- INSERM, Unité mixte de Recherche (UMR) 1229, Regenerative Medicine and Skeleton (RMeS), Nantes-Atlantic National College of Veterinary Medicine, Food Science and Engineering, ONIRIS, Université de Nantes, Nantes, France.,Faculty of Dental Surgery of Nantes (UFR Odontologie), Université de Nantes, Nantes, France
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Moussa L, Demarquay C, Réthoré G, Benadjaoud MA, Siñeriz F, Pattapa G, Guicheux J, Weiss P, Barritault D, Mathieu N. Heparan Sulfate Mimetics: A New Way to Optimize Therapeutic Effects of Hydrogel-Embedded Mesenchymal Stromal Cells in Colonic Radiation-Induced Damage. Sci Rep 2019; 9:164. [PMID: 30655576 PMCID: PMC6336771 DOI: 10.1038/s41598-018-36631-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Accepted: 11/25/2018] [Indexed: 12/18/2022] Open
Abstract
Clinical expression of gastrointestinal radiation toxicity on non-cancerous tissue could be very life threatening and clinicians must deal increasingly with the management of late side effects of radiotherapy. Cell therapy, in particular mesenchymal stromal cell (MSC) therapy, has shown promising results in numerous preclinical animal studies and thus has emerged as a new hope for patient refractory to current treatments. However, many stem cell clinical trials do not confer any beneficial effect suggesting a real need to accelerate research towards the successful clinical application of stem cell therapy. In this study, we propose a new concept to improve the procedure of MSC-based treatment for greater efficacy and clinical translatability. We demonstrated that heparan sulfate mimetic (HS-m) injections that restore the extracellular matrix network and enhance the biological activity of growth factors, associated with local injection of MSC protected in a hydrogel, that increase cell engraftment and cell survival, improve the therapeutic benefit of MSC treatment in two animal models relevant of the human pathology. For the first time, a decrease of the injury score in the ulcerated area was observed with this combined treatment. We also demonstrated that the combined treatment favored the epithelial regenerative process. In this study, we identified a new way, clinically applicable, to optimize stem-cell therapy and could be proposed to patients suffering from severe colonic defect after radiotherapy.
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Affiliation(s)
- Lara Moussa
- IRSN, Institut de Radioprotection et de Sûreté Nucléaire, PSE-SANTE, SERAMED, LRMed, 31 avenue de la division Leclerc, 92262, Fontenay-aux-Roses, France.,INSERM, Institut National de la Santé et de la Recherche Médicale, U1229, Regenerative Medicine and Skeleton (RMeS), Faculté de Chirurgie Dentaire, 1 Place Alexis Ricordeau, 44042, Nantes, France.,Université de Nantes, Regenerative Medicine and Squeleton (RMeS), Faculté de Chirurgie Dentaire, 1 Place Alexis Ricordeau, 44042, Nantes, France
| | - Christelle Demarquay
- IRSN, Institut de Radioprotection et de Sûreté Nucléaire, PSE-SANTE, SERAMED, LRMed, 31 avenue de la division Leclerc, 92262, Fontenay-aux-Roses, France
| | - Gildas Réthoré
- INSERM, Institut National de la Santé et de la Recherche Médicale, U1229, Regenerative Medicine and Skeleton (RMeS), Faculté de Chirurgie Dentaire, 1 Place Alexis Ricordeau, 44042, Nantes, France.,Université de Nantes, Regenerative Medicine and Squeleton (RMeS), Faculté de Chirurgie Dentaire, 1 Place Alexis Ricordeau, 44042, Nantes, France.,Centre Hospitalier Universitaire de Nantes, Pôle Hospitalo-Universitaire 4 (OTONN), 1 Place Alexis Ricordeau, 44042, Nantes, France
| | - Mohamed Amine Benadjaoud
- IRSN, Institut de Radioprotection et de Sûreté Nucléaire, PSE-SANTE, SERAMED, LRMed, 31 avenue de la division Leclerc, 92262, Fontenay-aux-Roses, France
| | - Fernando Siñeriz
- Société OTR3 (Organes, Tissus, Régénération, Réparation, Remplacement), 4 Rue Française, 75001, Paris, France
| | - Girish Pattapa
- INSERM, Institut National de la Santé et de la Recherche Médicale, U1229, Regenerative Medicine and Skeleton (RMeS), Faculté de Chirurgie Dentaire, 1 Place Alexis Ricordeau, 44042, Nantes, France.,Université de Nantes, Regenerative Medicine and Squeleton (RMeS), Faculté de Chirurgie Dentaire, 1 Place Alexis Ricordeau, 44042, Nantes, France
| | - Jérôme Guicheux
- INSERM, Institut National de la Santé et de la Recherche Médicale, U1229, Regenerative Medicine and Skeleton (RMeS), Faculté de Chirurgie Dentaire, 1 Place Alexis Ricordeau, 44042, Nantes, France.,Université de Nantes, Regenerative Medicine and Squeleton (RMeS), Faculté de Chirurgie Dentaire, 1 Place Alexis Ricordeau, 44042, Nantes, France.,Centre Hospitalier Universitaire de Nantes, Pôle Hospitalo-Universitaire 4 (OTONN), 1 Place Alexis Ricordeau, 44042, Nantes, France
| | - Pierre Weiss
- INSERM, Institut National de la Santé et de la Recherche Médicale, U1229, Regenerative Medicine and Skeleton (RMeS), Faculté de Chirurgie Dentaire, 1 Place Alexis Ricordeau, 44042, Nantes, France.,Université de Nantes, Regenerative Medicine and Squeleton (RMeS), Faculté de Chirurgie Dentaire, 1 Place Alexis Ricordeau, 44042, Nantes, France.,Centre Hospitalier Universitaire de Nantes, Pôle Hospitalo-Universitaire 4 (OTONN), 1 Place Alexis Ricordeau, 44042, Nantes, France
| | - Denis Barritault
- Société OTR3 (Organes, Tissus, Régénération, Réparation, Remplacement), 4 Rue Française, 75001, Paris, France.,Université Paris-Est Créteil, Laboratoire de recherche sur la Croissance Cellulaire, Réparation, et Régénération Tissulaire, Faculté des Sciences, Université Paris-Est Créteil, 61 Ave du Gal de Gaulle, 94000, Créteil, France
| | - Noëlle Mathieu
- IRSN, Institut de Radioprotection et de Sûreté Nucléaire, PSE-SANTE, SERAMED, LRMed, 31 avenue de la division Leclerc, 92262, Fontenay-aux-Roses, France.
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Beaufils S, Rouillon T, Millet P, Le Bideau J, Weiss P, Chopart JP, Daltin AL. Synthesis of calcium-deficient hydroxyapatite nanowires and nanotubes performed by template-assisted electrodeposition. Mater Sci Eng C Mater Biol Appl 2019; 98:333-346. [PMID: 30813035 DOI: 10.1016/j.msec.2018.12.071] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 09/09/2018] [Accepted: 12/22/2018] [Indexed: 11/24/2022]
Abstract
Hydroxyapatite (HA) has received much interest for being used as bone substitutes because of its similarity with bioapatites. In form of nanowires or nanotubes, HA would offer more advantages such as better biological and mechanical properties than conventional particles (spherical). To date, no study had allowed the isolated nanowires production with simultaneously well-controlled morphology and size, narrow size distribution and high aspect ratio (length on diameter ratio). So, it is impossible to determine exactly the real impact of particles' size and aspect ratio on healing responses of bone substitutes and characteristics of these ones; their biological and mechanical effects can never be reproducible. By the template-assisted pulsed electrodeposition method, we have for the first time succeeded to obtain such calcium-deficient hydroxyapatite (CDHA) particles in aqueous baths with hydrogen peroxide by both applying pulsed current density and pulsed potential in cathodic electrodeposition. After determining the best conditions for CDHA synthesis on gold substrate in thin films by X-ray diffraction (XRD) and Energy dispersive X-ray spectroscopy (EDX), we have transferred those conditions to the nanowires and nanotubes synthesis with high aspect ratio going until 71 and 25 respectively. Polycrystalline CDHA nanowires and nanotubes were characterized by Scanning electron microscopy (SEM) and Transmission electron microscopy (TEM). At the same time, this study enabled to understand the mechanism of nanopores filling in gold covered polycarbonate membrane: here a preferential nucleation on gold in membranes with 100 and 200 nm nanopores diameters forming nanowires whereas a preferential and randomly nucleation on nanopores walls in membranes with 400 nm nanopores diameter forming nanotubes.
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Affiliation(s)
- Sylvie Beaufils
- LISM, URCA, B.P. 1039, 51687 Reims Cedex 2, France; Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, Université de Nantes, ONIRIS, Nantes F-44042, France; Université de Reims-Champagne Ardennes, UFR Odontologie, Reims 51100, France.
| | - Thierry Rouillon
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, Université de Nantes, ONIRIS, Nantes F-44042, France
| | - Pierre Millet
- LISM, URCA, B.P. 1039, 51687 Reims Cedex 2, France; Université de Reims-Champagne Ardennes, UFR Odontologie, Reims 51100, France; CHU Pôle de Médecine Bucco-Dentaire, Reims 51100, France
| | - Jean Le Bideau
- Institut des Matériaux Jean Rouxel (IMN), Université de Nantes, CNRS, 2 rue de la Houssinière, BP 32229, 44322 Nantes cedex 3, France
| | - Pierre Weiss
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, Université de Nantes, ONIRIS, Nantes F-44042, France; Université de Nantes, UFR Odontologie, Nantes F-44042, France; CHU Nantes, PHU4 OTONN, Nantes F-44093, France
| | - Jean-Paul Chopart
- LISM, URCA, B.P. 1039, 51687 Reims Cedex 2, France; Université de Reims-Champagne Ardennes, UFR Odontologie, Reims 51100, France
| | - Anne-Lise Daltin
- LISM, URCA, B.P. 1039, 51687 Reims Cedex 2, France; Université de Reims-Champagne Ardennes, UFR Odontologie, Reims 51100, France
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Abstract
Introduction: Following any oral surgery procedure, postoperative pain is an inevitable outcome and can be described as moderate to severe. The pain management is essential for the comfort and the well-being of the patients. Topical delivery and more specifically transmucosal delivery systems seem to be of great value for the development of new pain management strategies. Method: A systematic literature review was performed using PubMedCentral database. Only PubMedCentral indexed publications were selected and included if they described i) a human clinical study with pharmacokinetic and/or pain relief assessment a biomaterial for topic delivery, ii) the delivery of analgesics or NSAIDs for analgesic purpose and iii) a biomaterial for topic delivery. Results: Ten articles were selected among which 4 pharmacokinetic studies and 8 studies describing pain relief. Six of the selected articles were well defined with a good scientific level of evidence (level 2) and 4 of them with a low level of evidence. Discussion: The clinical investigations demonstrated a good analgesia, a rapid pain relief with a decrease of the administered doses compared to the oral administration. Moreover, these topic analgesics were well tolerated by the patients. Number of devices was developed for the topical delivery after oral surgery procedures. Excepting a gelatin sponge and a hydro alcoholic gel, most of the devices were made of cellulose and its derivatives. Authors reported that the materials showed a good maintenance at the site of application and the release of the analgesic was well controlled over the time. Conclusion: However, well conducted large clinical trials are still missing in order to validate the absence of side effects.
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Buchtová N, D’Orlando A, Judeinstein P, Chauvet O, Weiss P, Le Bideau J. Water dynamics in silanized hydroxypropyl methylcellulose based hydrogels designed for tissue engineering. Carbohydr Polym 2018; 202:404-408. [DOI: 10.1016/j.carbpol.2018.08.143] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 08/31/2018] [Accepted: 08/31/2018] [Indexed: 01/18/2023]
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Lazarus C, Weiss P, Vignaud A, Ciuciu P. An empirical study of the maximum degree of undersampling in compressed sensing for T 2*-weighted MRI. Magn Reson Imaging 2018; 53:112-122. [PMID: 30036651 DOI: 10.1016/j.mri.2018.07.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [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: 05/23/2018] [Revised: 07/03/2018] [Accepted: 07/14/2018] [Indexed: 12/30/2022]
Abstract
Magnetic Resonance Imaging (MRI) is one of the most dynamic and safe imaging modalities used in clinical routine today. Yet, one major limitation to this technique resides in its long acquisition times. Over the last decade, Compressed Sensing (CS) has been increasingly used to address this issue and offers to shorten MR scans by reconstructing images from undersampled Fourier data. Nevertheless, a quantitative guide on the degree of acceleration applicable to a given acquisition scenario is still lacking today, leading in practice to a trial-and-error approach in the selection of the appropriate undersampling factor. In this study, we shortly point out the existing theoretical sampling results in CS and their limitations which motivate the focus of this work: an empirical and quantitative analysis of the maximum degree of undersampling allowed by CS in the specific context of T2*-weighted MRI. We make use of a generic method based on retrospective undersampling to quantitatively deduce the maximum acceleration factor Rmax which preserves a desired image quality as a function of the image resolution and the available signal-to-noise ratio (SNR). Our results quantify how larger acceleration factors can be applied to higher resolution images as long as a minimum SNR is guaranteed. In practice however, the maximum acceleration factor for a given resolution appears to be constrained by the available SNR inherent to the considered acquisition. Our analysis enables to take this a priori knowledge into account, allowing to derive a sequence-specific maximum acceleration factor adapted to the intrinsic SNR of any MR pipeline. These results obtained on an analytical T2*-weighted phantom image were corroborated by prospective experiments performed on MR data collected with radial trajectories on a 7 T scanner with the same contrast. The proposed framework allows to study other sequence weightings and therefore better optimize sequences when accelerated using CS.
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Affiliation(s)
- Carole Lazarus
- NeuroSpin, CEA Saclay, Gif-sur-Yvette cedex 91191, France; Université Paris-Saclay, France; Parietal, INRIA, Palaiseau 91120, France
| | - Pierre Weiss
- ITAV USR3505 CNRS, Toulouse 31000, France; IMT UMR 5219 CNRS, Toulouse 31400, France
| | - Alexandre Vignaud
- NeuroSpin, CEA Saclay, Gif-sur-Yvette cedex 91191, France; Université Paris-Saclay, France.
| | - Philippe Ciuciu
- NeuroSpin, CEA Saclay, Gif-sur-Yvette cedex 91191, France; Université Paris-Saclay, France; Parietal, INRIA, Palaiseau 91120, France.
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