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Rogowski I, Degot M, Hager JP, Del Moral B, Cardot N, Loursac R, Blache Y, Neyton L. Normative values for internal and external glenohumeral rotation strength in rugby players: A systematic review with meta-analysis. Shoulder Elbow 2024; 16:3-16. [PMID: 38425741 PMCID: PMC10901170 DOI: 10.1177/17585732221098738] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 04/19/2022] [Accepted: 04/19/2022] [Indexed: 03/02/2024]
Abstract
This systematic review aims to provide normative values for internal and external glenohumeral rotation strength in rugby players. From the inception to March 2021, the search strategy was (strength OR torque) AND shoulder AND rugby using PubMed, Scopus, Web of Science, and SPORTDiscus databases, with no language restrictions. This systematic review includes 15 articles involving 573 rugby players and presenting internal or external glenohumeral rotation strength values. Two main methods are used to assess glenohumeral rotation strength in rugby players: isokinetic and isometric methods; in the isometric method, the upper arm is abducted at either 0° or 90°. Owing to differences in isokinetic procedures and a lack of studies assessing isometric strength when the upper arm is in a neutral position, normative internal or external glenohumeral rotation strength values are only provided for isometric contractions when the upper arm is abducted at 90° based on 311 shoulders of 163 male rugby union players, with 2.04 ± 0.15 N.kg-1 and 2.11 ± 0.13 N.kg-1 for internal and external glenohumeral rotation strength, respectively. These findings may help strength and conditioning coaches and physical therapists, provide objective evidence when deciding whether or not rugby union players should return to sport.
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Affiliation(s)
- I Rogowski
- Laboratoire Interuniversitaire de Biologie de la Motricité – EA 7424, UFRSTAPS, Université de Lyon, Université Lyon 1, Villeurbanne Cedex, France
| | - M Degot
- Laboratoire Interuniversitaire de Biologie de la Motricité – EA 7424, UFRSTAPS, Université de Lyon, Université Lyon 1, Villeurbanne Cedex, France
| | - JP Hager
- Centre Orthopédique Santy, Fifa Medical Center of Excellence, Lyon, France
- Lyon Olympique Universitaire Rugby, Lyon, France
| | - B Del Moral
- Lyon Olympique Universitaire Rugby, Lyon, France
| | - N Cardot
- Lyon Olympique Universitaire Rugby, Lyon, France
| | - R Loursac
- Centre Orthopédique Santy, Fifa Medical Center of Excellence, Lyon, France
- Lyon Olympique Universitaire Rugby, Lyon, France
| | - Y Blache
- Laboratoire Interuniversitaire de Biologie de la Motricité – EA 7424, UFRSTAPS, Université de Lyon, Université Lyon 1, Villeurbanne Cedex, France
| | - L Neyton
- Centre Orthopédique Santy, Fifa Medical Center of Excellence, Lyon, France
- Ramsay Santé, Hôpital Privé Jean Mermoz, Lyon, France
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2
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Blache Y, Lefebvre F, Rogowski I, Michaud B, Begon M. Is an ellipsoid surface suitable to model the scapulothoracic sliding plane? J Biomech 2024; 164:111989. [PMID: 38354513 DOI: 10.1016/j.jbiomech.2024.111989] [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: 06/26/2023] [Revised: 01/16/2024] [Accepted: 02/06/2024] [Indexed: 02/16/2024]
Abstract
Closed loop kinematic chain approaches are commonly used to assess scapular kinematics but with heterogeneous ellipsoid calibration procedures. This study aimed to assess whether an ellipsoid surface can model the scapulothoracic sliding plane and determine the optimal number of static poses to calibrate the ellipsoid parameters. An intracortical pin with a rigid cluster of four reflective markers was inserted into the left scapular spine of two healthy males (P1 and P2). They performed arm elevations, internal rotations, ball throwing, hockey shooting, and eating movements. Ellipsoid radii and center location were functionally calibrated for each participant and each movement, either based on all frames of a movement or based on a reduced number of frames (from 3 to 200 equally position-distributed frames). Across both participants and all movements, ellipsoid radii varied up to 10.2 cm, 3.9 cm, and 18.4 cm in the antero-posterior, medio-lateral, and cranio-caudal directions, respectively. When all frames of a movement were considered for calibration, the median scapula-to-ellipsoid distance was, on average, 0.52 mm and 0.38 mm for P1 and P2, respectively. When only five frames were considered for ellipsoid calibration, the scapula-to-ellipsoid median distance slightly increased with 0.57 mm and 0.47 mm for P1 and P2, respectively. To conclude, this study highlights that an ellipsoid surface may effectively be appropriate to model the scapulothoracic sliding plane, especially when the calibration is functional, participant- and movement-specific. Furthermore, the number of poses required for the ellipsoid calibration can be reduced to five, minimizing the experimental cost.
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Affiliation(s)
- Y Blache
- Univ Lyon, Université Claude Bernard Lyon 1, Laboratoire Interuniversitaire de Biologie de la Motricité, EA 7424, F-69622 Villeurbanne, France.
| | - F Lefebvre
- Univ Lyon, Université Claude Bernard Lyon 1, Laboratoire Interuniversitaire de Biologie de la Motricité, EA 7424, F-69622 Villeurbanne, France; TRINOMA, Villefort, France
| | - I Rogowski
- Univ Lyon, Université Claude Bernard Lyon 1, Laboratoire Interuniversitaire de Biologie de la Motricité, EA 7424, F-69622 Villeurbanne, France
| | - B Michaud
- Laboratoire de simulation et modélisation du mouvement, Department of Kinesiology, University of Montreal, Montréal, QC, Canada
| | - M Begon
- Laboratoire de simulation et modélisation du mouvement, Department of Kinesiology, University of Montreal, Montréal, QC, Canada; Sainte-Justine Hospital Research Center, Montréal, QC, Canada
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Lefebvre F, Rogowski I, Long N, Blache Y. Influence of marker weights optimization on scapular kinematics estimated with a multibody kinematic optimization. J Biomech 2023; 159:111795. [PMID: 37699272 DOI: 10.1016/j.jbiomech.2023.111795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 08/10/2023] [Accepted: 09/04/2023] [Indexed: 09/14/2023]
Abstract
Scapular kinematic estimates are altered by soft tissue artefacts, therefore experimental and numerical methods should be developed to improve their accuracy. This study aimed to assess the influence of weights applied to the scapula markers within a closed-loop multibody kinematic optimization on scapular kinematic estimates. Fifteen healthy volunteers performed static postures mimicking analytical, daily living and sport movements. Scapulo-thoracic angles were computed either from a scapula locator as the reference, or from a closed-loop multibody-kinematic optimization (MKO) including a participant-specific point-on-ellipsoid scapulothoracic joint. Weights applied to scapula markers in the MKO were optimized to minimize the difference in scapular orientation from the reference. Optimizing weighting sets significantly (p < 0.0001) improved scapular orientation from 0.9° to 12.1° in comparison to scapular kinematics estimated with non-optimized weighting sets. The mean optimized weighting set contained no neglectable weight for all markers from the acromion to the medial border of the scapular spine but showed no significant difference (p = 0.547) compared to homogeneous weights. Optimized weighting sets were participant- and movement- specific. To conclude, homogenous weights applied on redundant markers located from acromion to scapular medial border spine are recommended when estimating scapular kinematics in upper limb MKO.
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Affiliation(s)
- F Lefebvre
- Univ Lyon, Université Claude Bernard Lyon 1, Laboratoire Interuniversitaire de Biologie de la Motricité, UR 7424, F-69622 Villeurbanne, France; TRINOMA, Villefort, France.
| | - I Rogowski
- Univ Lyon, Université Claude Bernard Lyon 1, Laboratoire Interuniversitaire de Biologie de la Motricité, UR 7424, F-69622 Villeurbanne, France
| | - N Long
- TRINOMA, Villefort, France
| | - Y Blache
- Univ Lyon, Université Claude Bernard Lyon 1, Laboratoire Interuniversitaire de Biologie de la Motricité, UR 7424, F-69622 Villeurbanne, France
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4
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Blache Y, Degot M, Duprey S, Begon M, Rogowski I. Closed-loop multibody kinematic optimization coupled with double calibration improves scapular kinematic estimates in asymptomatic population. J Biomech 2021; 126:110653. [PMID: 34343862 DOI: 10.1016/j.jbiomech.2021.110653] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 07/15/2021] [Accepted: 07/25/2021] [Indexed: 10/20/2022]
Abstract
Non-invasive methods still need to better estimate scapular kinematics because of soft tissue artifact issue. This study aimed to develop and assess new procedures to estimate scapular kinematics by combining closed kinematic chain optimization and double calibration. Sixteen healthy volunteers performed static postures mimicking analytical and daily living movements. Scapulo-thoracic angles were computed either with a scapula locator (Ref), or with a closed-loop multibody kinematic optimization (Ell) or with double calibration involving linear (DClin), exponential (DCexp) or logarithmic (DClog) correction. Double calibration corrections enforced scapulo-thoracic angles to be the same than those measured with Ref at the end of the movement performed. DClin and DClog significantly (p < 0.01) reduced scapulo-thoracic misorientation for at least the second third of the movement with averaged improvement ranging from 9° to 32°. Moreover, for arm elevation in the sagittal plane, internal rotations and mimicking hair combing, the beneficial effect of DClin and DClog propagates up to half of the movement. To conclude, when a kinematic chain is required, coupling double calibration (using either linear or logarithmic correction), to a closed-loop multibody kinematic optimization is an efficient and fast method in regard with improvement in scapular kinematic estimates in healthy population.
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Affiliation(s)
- Y Blache
- Univ Lyon, Université Claude Bernard Lyon 1, Laboratoire Interuniversitaire de Biologie de la Motricité, EA 7424, F-69622 Villeurbanne, France.
| | - M Degot
- Univ Lyon, Université Claude Bernard Lyon 1, Laboratoire Interuniversitaire de Biologie de la Motricité, EA 7424, F-69622 Villeurbanne, France
| | - S Duprey
- Univ Lyon, Université Claude Bernard Lyon 1, Univ Gustave Eiffel, IFSTTAR, LBMC UMR_T9406, F69622 Lyon, France
| | - M Begon
- École de Kinésiologie et de Sciences de l'Activité Physique, Université de Montréal, Canada
| | - I Rogowski
- Univ Lyon, Université Claude Bernard Lyon 1, Laboratoire Interuniversitaire de Biologie de la Motricité, EA 7424, F-69622 Villeurbanne, France
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5
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Degot M, Rogowski I, Blache Y. Ground reaction force during the Upper Quarter Y-Balance Test. Comput Methods Biomech Biomed Engin 2020. [DOI: 10.1080/10255842.2020.1812162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- M. Degot
- Université de Lyon, France; Université Claude Bernard Lyon 1, Laboratoire Interuniversitaire de Biologie de la Motricité, Villeurbanne, France
| | - I. Rogowski
- Université de Lyon, France; Université Claude Bernard Lyon 1, Laboratoire Interuniversitaire de Biologie de la Motricité, Villeurbanne, France
| | - Y. Blache
- Université de Lyon, France; Université Claude Bernard Lyon 1, Laboratoire Interuniversitaire de Biologie de la Motricité, Villeurbanne, France
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6
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Blache Y, Degot M, Begon M, Duprey S, Rogowski I. Does double calibration coupled with a closed loop multibody kinematic optimization improve scapular kinematic estimates? Comput Methods Biomech Biomed Engin 2020. [DOI: 10.1080/10255842.2020.1811505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Y. Blache
- Univ-Lyon, LIBM, Villeurbanne, France
| | - M. Degot
- Univ-Lyon, LIBM, Villeurbanne, France
| | - M. Begon
- bS2M Lab, Université de Montréal, Montréal, Canada
| | - S. Duprey
- Univ-Lyon, Univ Gustave Eiffel, IFSTTAR, LBMC UMR_T 9406, Lyon, France
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Argaud S, Pairot de Fontenay B, Blache Y, Monteil K. Does aging cause joint mechanics redistribution during squat jumping? Comput Methods Biomech Biomed Engin 2020. [DOI: 10.1080/10255842.2020.1811493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- S. Argaud
- Université de Lyon, Lyon, France
- Université Claude Bernard Lyon 1 Laboratoire Interuniversitaire de Biologie de la Motricité, Villeurbanne, France
| | - B. Pairot de Fontenay
- Université de Lyon, Lyon, France
- Université Claude Bernard Lyon 1 Laboratoire Interuniversitaire de Biologie de la Motricité, Villeurbanne, France
| | - Y. Blache
- Université de Lyon, Lyon, France
- Université Claude Bernard Lyon 1 Laboratoire Interuniversitaire de Biologie de la Motricité, Villeurbanne, France
| | - K. Monteil
- Université de Lyon, Lyon, France
- Université Claude Bernard Lyon 1 Laboratoire Interuniversitaire de Biologie de la Motricité, Villeurbanne, France
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8
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Affiliation(s)
- R. Trama
- Univ-lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - C. Hautier
- Univ-lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - Y. Blache
- Univ-lyon, Université Claude Bernard Lyon 1, Lyon, France
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9
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Affiliation(s)
- M. Degot
- Université de Lyon, France; Université Claude Bernard Lyon 1 Laboratoire Interuniversitaire de Biologie de la Motricité, Villeurbanne, France
| | - Y. Blache
- Université de Lyon, France; Université Claude Bernard Lyon 1 Laboratoire Interuniversitaire de Biologie de la Motricité, Villeurbanne, France
| | - L. Neyton
- Centre Orthopédique Santy, Fifa Medical Center of Excellence, Lyon, France
- Hôpital Privé Jean Mermoz, Ramsay-Générale de Santé, Lyon, France
| | - I. Rogowski
- Université de Lyon, France; Université Claude Bernard Lyon 1 Laboratoire Interuniversitaire de Biologie de la Motricité, Villeurbanne, France
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10
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Blache Y, Michaud B, Rogowski I, Monteil K, Begon M. Sensitivity of Shoulder Musculoskeletal Model Predictions to Muscle–Tendon Properties. IEEE Trans Biomed Eng 2019; 66:1309-1317. [DOI: 10.1109/tbme.2018.2872833] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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11
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Faouën P, Blache Y, Rogowski I, Rubinstein L. Influence of workstation on muscular activity and perceived exertion: a preliminary study. Comput Methods Biomech Biomed Engin 2019. [DOI: 10.1080/10255842.2020.1714957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
| | - Y. Blache
- Laboratoire Interuniversitaire de Biologie de la Motricité (EA7424), Université de Lyon, Université Lyon 1, Villeurbanne, France
| | - I. Rogowski
- Laboratoire Interuniversitaire de Biologie de la Motricité (EA7424), Université de Lyon, Université Lyon 1, Villeurbanne, France
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12
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Kacou A, Ouvrard A, Jamet D, Jamet JL, Blache Y. Towards eco-friendly biocides: preparation, antibiofilm activity of hemibastadin analogues. Lett Appl Microbiol 2019; 68:360-368. [PMID: 30843243 DOI: 10.1111/lam.13150] [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: 12/27/2018] [Revised: 03/02/2019] [Accepted: 03/03/2019] [Indexed: 11/30/2022]
Abstract
The antibiofilm activity of three hemibastadins analogues was evaluated against different marine bacterial strains through mono-species biofilms and through a multi-species model of biofilm. Results showed that compound 3 exhibited interesting antibiofilm efficiencies effective concentrations (EC50 ) in the range of 30-100 μmol l-1 without acute toxicity against bacteria. Toxicity against nontargeted organisms was also considered showing that the compound did not affect the global bacterial community at a concentration of 75-100 μmol l-1 . These results provided baseline data concerning the toxicity of antibiofilm biocides against marine organisms. SIGNIFICANCE AND IMPACT OF THE STUDY: This study reports relevant information about antibiofilm activity of original derivatives of hemibastadin alkaloids. The most active compound was shown to act as a specific anti-biofilm inhibitor without affecting viability of the targeted bacteria no more than those of the global bacterial community of a seawater sample. Taken together, these findings indicate the potentiality of such compounds to be used as original nonbiocidal molecules for designing eco-friendly antifouling solutions.
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Affiliation(s)
- A Kacou
- Université de Toulon, MAPIEM, Toulon, France
| | - A Ouvrard
- Université de Toulon, MAPIEM, Toulon, France.,Université de Toulon, Aix Marseille Univ, CNRS, IRD, MIO, CNRS, Toulon, France
| | - D Jamet
- Université de Toulon, Aix Marseille Univ, CNRS, IRD, MIO, CNRS, Toulon, France
| | - J-L Jamet
- Université de Toulon, Aix Marseille Univ, CNRS, IRD, MIO, CNRS, Toulon, France
| | - Y Blache
- Université de Toulon, MAPIEM, Toulon, France
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13
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Blache Y, Dumas R, de Guise J, Saithna A, Sonnery-Cottet B, Thaunat M. Technical considerations in lateral extra-articular reconstruction coupled with anterior cruciate ligament reconstruction: A simulation study evaluating the influence of surgical parameters on control of knee stability. Clin Biomech (Bristol, Avon) 2019; 61:136-143. [PMID: 30562692 DOI: 10.1016/j.clinbiomech.2018.12.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 12/05/2018] [Accepted: 12/10/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND Surgical parameters such as the selection of tibial and femoral attachment site, graft tension, and knee flexion angle at the time of fixation may influence the control of knee stability after lateral extra-articular reconstruction. This study aimed to determine how sensitive is the control of knee rotation and translation, during simulated pivot-shift scenarios, to these four surgery settings. METHODS A computer model was used to simulate 625 lateral extra-articular reconstructions based upon five different variations of each of the following parameters: femoral and tibial attachment sites, knee flexion angle and graft tension at the time of fixation. For each simulated surgery, the lateral extra-articular reconstruction external rotation moment at the knee joint center was computed during simulated pivot-shift scenarios. The sensitivity of the control of knee rotation and translation to a given surgery setting was assessed by calculating the coefficient of variation of the lateral extra-articular reconstruction external rotation moment. FINDINGS Graft tension had minimal influence on the control of knee rotation and translation with less than 2.4% of variation across the scenarios tested. Control of knee rotation and translation was the least affected by the femoral attachment site if the knee was close to full extension at the time of graft fixation. The choice of the tibial attachment site was crucial when the femoral fixation was proximal and posterior to the femoral epicondyle since 15 to 67% of variation was observed in the control of knee rotation and translation. INTERPRETATION Femoral and tibial attachment sites as well as knee flexion angle at the time of fixation should be considered by surgeons when performing lateral extra-articular reconstruction. Variation in graft tension between the ranges 20-40 N has minimal influence on the control of knee rotation and translation.
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Affiliation(s)
- Y Blache
- Univ Lyon, Université Claude Bernard Lyon 1, Laboratoire Interuniversitaire de Biologie de la Motricité - EA 7424, France.
| | - R Dumas
- Univ Lyon, Université Claude Bernard Lyon 1, IFSTTAR, LBMC UMR_T9406, F69622 Lyon, France
| | - J de Guise
- Laboratoire de recherche en imagerie et orthopédie (LIO), Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), et École de technologie supérieure, Montréal, Canada
| | - A Saithna
- Advanced Orthopedics and Sports Medicine, Kansas City, USA; School of Science and Technology, Nottingham Trent University, United Kingdom
| | - B Sonnery-Cottet
- Centre Orthopédique Santy-Group Ramsay-Générale de Santé - Hôpital privé Jean Mermoz, Lyon, France
| | - M Thaunat
- Centre Orthopédique Santy-Group Ramsay-Générale de Santé - Hôpital privé Jean Mermoz, Lyon, France
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14
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Trama R, Blache Y, Hautier C. Effect of rocker shoes and running speed on lower limb mechanics and soft tissue vibrations. J Biomech 2018; 82:171-177. [PMID: 30389258 DOI: 10.1016/j.jbiomech.2018.10.023] [Citation(s) in RCA: 11] [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] [Received: 12/15/2017] [Revised: 09/19/2018] [Accepted: 10/20/2018] [Indexed: 10/28/2022]
Abstract
Previous studies have shown a possible effect of running speed and the sole material of footwear on lower-limb mechanics and soft tissue vibrations, while little information has been offered concerning the influence of the shape of the footwear's sole. The purpose of this study is to assess the effect of running speed and rocker shoes on muscular activity, ground reaction force, and soft tissue vibrations. Twenty participants performed heel-toe running with two shoes, differentiated only by their sole shape (i.e. rocker and non-rocker), at four running speeds. Ground reaction force and electromyograms of the gastrocnemius medialis and vastus lateralis were measured, and soft tissue accelerations of the same muscles were recorded with tri-axial accelerometers. A continuous wavelet transform was applied to the accelerometer's signals to analyse them in the time-frequency domain. The rocker of the shoes did not change the muscular activations, ground reaction force, nor power of soft tissue vibrations. In opposite, increased running speed led to an augmentation of all of the measured parameters. Interestingly, running speed augmentation led to a greater increase in high frequencies component of soft tissue vibrations (25-50 Hz, 242%) than lower ones (8-25 Hz, 111%). Consequently, we indicated a 10% increase in the relative part of the high frequencies of the total power. In conclusion, although rocker shoes have shown an effect on lower-limb kinetics in some studies, no influence on soft tissue vibration is denoted. By contrast, soft tissue vibrations may be modulated by changing running speed.
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Affiliation(s)
- R Trama
- Univ-lyon, Université Claude Bernard Lyon 1, LIBM EA 7424, Lyon, France.
| | - Y Blache
- Univ-lyon, Université Claude Bernard Lyon 1, LIBM EA 7424, Lyon, France
| | - C Hautier
- Univ-lyon, Université Claude Bernard Lyon 1, LIBM EA 7424, Lyon, France
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15
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Affiliation(s)
- Y. Blache
- Laboratoire Interuniversitaire de Biologie de la Motricité – EA 7424, UFRSTAPS, Univ Lyon, Université Claude Bernard Lyon 1, Villeurbanne Cedex, France
| | - B. Gillet
- Laboratoire Interuniversitaire de Biologie de la Motricité – EA 7424, UFRSTAPS, Univ Lyon, Université Claude Bernard Lyon 1, Villeurbanne Cedex, France
- Département de Kinésiologie, Laboratoire de Simulation et de Modélisation du Mouvement (S2M), Université de Montréal, Laval, QC, Canada
| | - J. Selin
- Laboratoire Interuniversitaire de Biologie de la Motricité – EA 7424, UFRSTAPS, Univ Lyon, Université Claude Bernard Lyon 1, Villeurbanne Cedex, France
| | - V. Sevrez
- Institut des Sciences du Mouvement Etienne-Jules Marey, Aix-Marseille Université, Marseille, France
| | - I. Rogowski
- Laboratoire Interuniversitaire de Biologie de la Motricité – EA 7424, UFRSTAPS, Univ Lyon, Université Claude Bernard Lyon 1, Villeurbanne Cedex, France
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16
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Sall C, Ayé M, Bottzeck O, Praud A, Blache Y. Towards smart biocide-free anti-biofilm strategies: Click-based synthesis of cinnamide analogues as anti-biofilm compounds against marine bacteria. Bioorg Med Chem Lett 2017; 28:155-159. [PMID: 29198862 DOI: 10.1016/j.bmcl.2017.11.039] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 11/20/2017] [Accepted: 11/23/2017] [Indexed: 10/18/2022]
Abstract
A set of triazole-based analogues of N-coumaroyltyramine was designed to discover potential leads that may help in the control of bacterial biofilms. the most potent compounds act as inhibitors of biofilm development with EC50 closed to ampicillin (EC50 = 11 μM) without toxic effect on bacterial growth even at high concentrations(100 μM).
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Affiliation(s)
- C Sall
- Laboratoire de chimie, UFR des Sciences de la Santé, Université de Thiès, BP 967 Thiès, Senegal
| | - M Ayé
- Laboratoire MAPIEM, Seatech Ecole d'ingénieurs, université de Toulon, CS 60584 Toulon Cedex 9, France
| | - O Bottzeck
- Laboratoire MAPIEM, Seatech Ecole d'ingénieurs, université de Toulon, CS 60584 Toulon Cedex 9, France
| | - A Praud
- Laboratoire MAPIEM, Seatech Ecole d'ingénieurs, université de Toulon, CS 60584 Toulon Cedex 9, France
| | - Y Blache
- Laboratoire MAPIEM, Seatech Ecole d'ingénieurs, université de Toulon, CS 60584 Toulon Cedex 9, France.
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17
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Affiliation(s)
- B Gillet
- a Univ. Lyon, Lyon, France, Université Claude Bernard Lyon 1, Laboratoire Interuniversitaire de Biologie de la Motricité, LIBM EA 7424, UFRSTAPS 27-29 , Villeurbanne Cedex , France.,b Université de Montréal, Montréal, Canada , Laboratoire de Simulation et de Modélisation du Mouvement, Laval, Canada
| | - M Begon
- b Université de Montréal, Montréal, Canada , Laboratoire de Simulation et de Modélisation du Mouvement, Laval, Canada.,c Centre de Recherche de l'hôpital Sainte Justine , Montréal , QC , Canada
| | - Y Blache
- a Univ. Lyon, Lyon, France, Université Claude Bernard Lyon 1, Laboratoire Interuniversitaire de Biologie de la Motricité, LIBM EA 7424, UFRSTAPS 27-29 , Villeurbanne Cedex , France
| | - C Berger-Vachon
- d IFSTTAR, UMR_T9406, LBMC Laboratoire de Biomécanique et Mécanique des Chocs-F69675 , Bron , France.,e Ligue du Lyonnais de Tennis , Bron , France
| | - I Rogowski
- a Univ. Lyon, Lyon, France, Université Claude Bernard Lyon 1, Laboratoire Interuniversitaire de Biologie de la Motricité, LIBM EA 7424, UFRSTAPS 27-29 , Villeurbanne Cedex , France
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18
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Blache Y, Dumas R, Lundberg A, Begon M. Main component of soft tissue artifact of the upper-limbs with respect to different functional, daily life and sports movements. J Biomech 2017; 62:39-46. [DOI: 10.1016/j.jbiomech.2016.10.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 09/13/2016] [Accepted: 10/02/2016] [Indexed: 12/16/2022]
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19
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Di Rienzo F, Blache Y, Kanthack T, Monteil K, Collet C, Guillot A. Short-term effects of integrated motor imagery practice on muscle activation and force performance. Neuroscience 2015; 305:146-56. [DOI: 10.1016/j.neuroscience.2015.07.080] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Revised: 07/24/2015] [Accepted: 07/30/2015] [Indexed: 11/17/2022]
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20
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Blache Y, Desmoulins L, Allard P, Plamondon A, Begon M. Effects of height and load weight on shoulder muscle work during overhead lifting task. Ergonomics 2014; 58:748-761. [PMID: 25403553 DOI: 10.1080/00140139.2014.980336] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Few musculoskeletal models are available to assess shoulder deeper muscle demand during overhead lifting tasks. Our objective was to implement a musculoskeletal model to assess the effect of lifting height and load on shoulder muscle work. A musculoskeletal model scaled from 15 male subjects was used to calculate shoulder muscle work during six lifting tasks. Boxes containing three different loads (6, 12 and 18 kg) were lifted by the subjects from the waist to shoulder or eye level. After optimisation of the maximal isometric force of the model's muscles, the bio-fidelity of the model was improved by 19%. The latter was able to reproduce the subjects' lifting movements. Mechanical work of the rotator cuff muscles, upper trapezius and anterior deltoid was increased with lifting load and height augmentation. In conclusion, the use of a musculoskeletal model validated by electromyography enabled to evaluate the muscle demand of deep muscles during lifting tasks.
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Affiliation(s)
- Y Blache
- a Laboratoire de Simulation et Modélisation du Mouvement, Département de Kinésiologie , Université de Montréal , Québec , Canada
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21
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Abstract
The purpose of this study was to determine the influence of seat height and foot position in the sagittal plane on L5-S1 joint load. Fourteen healthy male adults stood up from a chair with three different seat heights and positions of the feet in the sagittal plane. L5-S1 net joint torque, mechanical work, range of motion and electromyographic activity of the erector spinae muscle were measured. L5-S1 net joint work increased by about 50% from high to low seat position. The mean and peak L5-S1 net joint torques increased about 30% from foot-back to foot-neutral position. These results were reinforced by a greater integrated electromyography signal from the erector spinae from high to low seat position and from foot-back to foot-neutral position. A high chair and placement of the feet behind the knees may be advisable to lessen lumbar load during sit-to-stand movements.
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Affiliation(s)
- Y Blache
- a Centre de Recherche et d'Innovation sur le Sport , Université Claude Bernard , Lyon , France
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22
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Pairot de Fontenay B, Argaud S, Blache Y, Monteil K. Asymmetries in joint work during multi-joint movement after anterior cruciate ligament reconstruction: a pilot study. Scand J Med Sci Sports 2014; 24:e471-476. [PMID: 24646322 DOI: 10.1111/sms.12207] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/05/2014] [Indexed: 11/30/2022]
Abstract
After anterior cruciate ligament reconstruction (ACL-R), many studies have reported a deficit of performance on the injured leg during multi-joint tasks. However, the total mechanical joint work (WTotal ), parameter best related to the vertical displacement of the body mass center during vertical jumping, has not yet been studied. The aim of this research was to compare asymmetries between ACL-R subjects and healthy matched subjects, through the analysis of the kinematics and kinetics during a single-leg squat jump. Asymmetries are defined by the Limb Symmetry Index (LSI). A greater LSI was observed for WTotal in the ACL-R group than in the healthy group. There was no difference in LSI for knee joint work between the two groups, while the LSI for hip and ankle joint work was significantly larger in the ACL-R group. This was explained by greater LSI for the hip and ankle joint range of motion in the ACL-R group than in the healthy group. After ACL-R, patients exhibited greater asymmetries than healthy subjects during single-leg squat jump. Physiotherapists should focus on quality execution of multi-joint movement, especially on hip and ankle joints range of motion in order to reduce asymmetries and to improve vertical jumping performance.
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Affiliation(s)
- B Pairot de Fontenay
- Centre de Recherche et d'Innovation sur le Sport, équipe Performance Motrice, Mentale et du Matériel, Université de Lyon, Université Claude Bernard Lyon 1, Villeurbanne, France
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23
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Blache Y, Monteil K. Effect of arm swing on effective energy during vertical jumping: Experimental and simulation study. Scand J Med Sci Sports 2013; 23:e121-9. [DOI: 10.1111/sms.12042] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/08/2012] [Indexed: 11/29/2022]
Affiliation(s)
- Y. Blache
- Centre de Recherche et d'Innovation sur le Sport; Université Claude Bernard; Lyon; France
| | - K. Monteil
- Centre de Recherche et d'Innovation sur le Sport; Université Claude Bernard; Lyon; France
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24
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Linares D, Bottzeck O, Pereira O, Praud-Tabariès A, Blache Y. Designing 2-aminoimidazole alkaloids analogs with anti-biofilm activities: structure-activities relationships of polysubstituted triazoles. Bioorg Med Chem Lett 2011; 21:6751-5. [PMID: 21982498 DOI: 10.1016/j.bmcl.2011.09.050] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2011] [Revised: 09/14/2011] [Accepted: 09/14/2011] [Indexed: 11/16/2022]
Abstract
In order to discover novel probes that may help in the investigation and the control of bacterial biofilms, we have designed a library of triazole-based analogs of 2-aminoimidazole marine alkaloids: naamine A and isonaamine A. Twenty-two compounds were screened for their biofilm inhibitory activity against two strains of Gram-negative bacteria. Four compounds were shown to act as non-toxic inhibitors of biofilm development without effect on bacterial growth even at high concentrations (100 μM).
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Affiliation(s)
- D Linares
- Laboratoire MAPIEM, EA 4323, UFR Sciences et Techniques, Université du Sud Toulon-Var, 83957 La Garde cedex, France
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25
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26
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Banzouzi JT, Prado R, Menan H, Valentin A, Roumestan C, Mallié M, Pelissier Y, Blache Y. Studies on medicinal plants of Ivory Coast: investigation of Sida acuta for in vitro antiplasmodial activities and identification of an active constituent. Phytomedicine 2004; 11:338-341. [PMID: 15185848 DOI: 10.1078/0944711041495245] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Sida acuta Burm. (Malvaceae) originating from Ivory Coast was selected after an ethnobotanical survey: traditional healers of malaria commonly used this plant for the treatment. Extracts were tested on two strains of Plasmodium falciparum: FcM29-Cameroon (chloroquine-resistant strain) and a Nigerian chloroquine-sensitive strain. Extracts were obtained by preparing decoction in water of the powdered plant, the technique used by most of the traditional healers. An ethanol extract was then made and tested. The IC50 values obtained for these extracts ranged from 3.9 to -5.4 microg/ml. Purification of this active fraction led to the identification of cryptolepine as the active antiplasmodial constituent of the plant.
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Affiliation(s)
- J T Banzouzi
- Laboratoire de Chimie Organique Pharmaceutique, E.A. 2414, Faculté de Pharmacie, Montpellier cedex, France
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27
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Banzouzi JT, Prado R, Menan H, Valentin A, Roumestan C, Mallie M, Pelissier Y, Blache Y. In vitro antiplasmodial activity of extracts of Alchornea cordifolia and identification of an active constituent: ellagic acid. J Ethnopharmacol 2002; 81:399-401. [PMID: 12127243 DOI: 10.1016/s0378-8741(02)00121-6] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Extracts of leaves of Alchornea cordifolia were studied for their antiplasmodial activities. Chloroformic and ether extracts were found to be inactive while the ethanolic extract exhibited mild in vitro activity against Plasmodium falciparum. Fractionation of this extract led us to isolate ellagic acid as the active constituent of the extract with IC(50) in the range of 0.2-0.5 microM. Cytotoxicity of ethanolic fraction and ellagic acid was also estimated on human fibroblasts cells (IC(50) on Hela cells = 7.3 microM at 24 h for ellagic acid).
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Affiliation(s)
- J-T Banzouzi
- Laboratoire de Chimie Organique Pharmaceutique, E.A. 2414, 15 Avenue Charles Flahault, Faculté de Pharmacie, 34060 Montpellier Cedex 2, France
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28
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Turan-Zitouni G, Blache Y, Güven K. Synthesis and antimicrobial activity of some imidazo-[1,2-a]pyridine-2- carboxylic acid arylidenehydrazide derivatives. Boll Chim Farm 2001; 140:397-400. [PMID: 11822228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
Imidazo[1,2-a]pyridine-2-carboxylic acid, ethyl esters were reacted with hydrazine hydrate to furnish imidazo[1,2-a]pyridine-2-carboxylic acid hydrazide. The hydrazides formed were treated with various aldehydes to obtain 28 imidazo[1,2-a]pyridine-2-carboxylic acid arylidenehydrazides. Antimicrobial activity of the compounds were examined.
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Affiliation(s)
- G Turan-Zitouni
- Anadolu University, Faculty of Pharmacy, Department of Pharmaceutical Chemistry, Eskisehir, Turkey
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29
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Chezal JM, Moreau E, Delmas G, Gueiffier A, Blache Y, Grassy G, Lartigue C, Chavignon O, Teulade JC. Heterocyclization of functionalized vinylic derivatives of imidazo. J Org Chem 2001; 66:6576-84. [PMID: 11578207 DOI: 10.1021/jo015582x] [Citation(s) in RCA: 41] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Heterocyclization of functionalized vinylic derivatives of imidazo[1,2-a]pyridines was explored experimentally and theoretically using semiempirical AM1 and ab initio methods. A range of functionalized vinylic derivatives (azido, amino, and carbodiimide groups) were prepared for conversion into pyrroloazaindoles 19-22, imidazo[1,x]-, (x = 5, 6, 7, 8), [2,6]-, and [2,7]naphthyridines 28-30, 35-38 by thermal reaction. In the case of vinylic groups in the 5 position, peri annulation also was observed. The experimental and theoretical data are compared and discussed.
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Affiliation(s)
- J M Chezal
- UMR INSERM 484, Université d'Auvergne, Faculté de Pharmacie, 28 Pl. H. Dunant, B.P. 38, 63001 Clermont-Ferrand CEDEX 1, France
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30
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Dupuy M, Pinguet F, Chavignon O, Chezal JM, Teulade JC, Chapat JP, Blache Y. Synthesis and in vitro cytotoxic evaluation of new derivatives of pyrido[1,2-a]benzimidazolic ring system: the pyrido[1',2':1,2]imidazo[4,5-h]quinazolines. Chem Pharm Bull (Tokyo) 2001; 49:1061-5. [PMID: 11558586 DOI: 10.1248/cpb.49.1061] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [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: 11/22/2022]
Abstract
Access to the original series of pyrido[1',2':1,2]imidazo[4,5-h]quinazoline was developed from a 1,3-dicarbonyl unit with some "N-C-N" bisnucleophilic reagents and the derivatives obtained were evaluated for in vitro cytotoxic activities against HL60 and A2780 cells. All compounds exhibited cytotoxic activities on resistant cell lines (MDR+; HL60R and A2780R) with no resistance phenomena.
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Affiliation(s)
- M Dupuy
- Laboratoire de Chimie organique Pharmaceutique, E.A. 2414, Faculté de Pharmacie, Montpellier, France
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31
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Yapi AD, Mustof M, Valentin A, Chavignon O, Teulade JC, Mallie M, Chapat JP, Blache Y. New potential antimalarial agents: synthesis and biological activities of original diaza-analogs of phenanthrene. Chem Pharm Bull (Tokyo) 2000; 48:1886-9. [PMID: 11145137 DOI: 10.1248/cpb.48.1886] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [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: 11/22/2022]
Abstract
Several diaza-analogs of phenanthrene derived from 3-amino, 5-amino, 6-amino, 8-aminoquinolines, and 5-aminoisoquinoline were prepared to evaluate their antiplasmodial activities. All compounds showed mild to good activitiy in vitro, both on a Nigerian chloroquino-sensitive strain and on the chloroquino-resistant FcB1-Columbia and FcM29 strains. The position of the intracyclic nitrogen atom is shown to be crucial for the activities (best results are obtained with a 1,10-phenanthroline skeleton). In regard to the particular properties of this structure (metalloprotease inhibition activitiy by chelating divalent metal ions), the potential chelating site of the molecule was blocked. In this case, the biological activity of the compound was greatly enhanced, showing that the mechanism of action of such a compound is probably not correlated to metalloprotease inhibition activity.
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Affiliation(s)
- A D Yapi
- Laboratoire de Chimie Organique Pharmaceutique, Faculte de Pharmacie, Montpellier, France
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32
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Dupuy M, Pinguet F, Blache Y, Chavignon O, Teulade JC, Chapat JP. Regioselective synthesis of pyrazolo[4,5-g]pyrido[1,2-a]benzimidazoles: cytotoxic derivatives of pyrido[1,2-a]benzimidazolic ring system. Chem Pharm Bull (Tokyo) 1998; 46:1820-3. [PMID: 9845960 DOI: 10.1248/cpb.46.1820] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [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: 11/22/2022]
Abstract
N-1 and N-2 substituted pyrazolo[4,5-g]pyrido[1,2-a]benzimidazoles were prepared regioselectively, and cytotoxicities evaluated in vitro against K562 and HL60 cells. All compounds displayed weaker activity than doxorubicin against sensitive lines, but showed the same activity against resistant cell lines (multidrug resistance+, (MDR+); K562R and HL60R) indicating no resistance phenomena.
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Affiliation(s)
- M Dupuy
- Laboratoire de Chimie Organique Pharmaceutique, Faculté de Pharmacie, Montpellier, France
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33
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Gueiffier A, Lhassani M, Elhakmaoui A, Snoeck R, Andrei G, Chavignon O, Teulade JC, Kerbal A, Essassi EM, Debouzy JC, Witvrouw M, Blache Y, Balzarini J, De Clercq E, Chapat JP. Synthesis of acyclo-C-nucleosides in the imidazo[1,2-a]pyridine and pyrimidine series as antiviral agents. J Med Chem 1996; 39:2856-9. [PMID: 8709116 DOI: 10.1021/jm9507901] [Citation(s) in RCA: 133] [Impact Index Per Article: 4.8] [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: 02/01/2023]
Abstract
The synthesis and the antiviral activities of C-3 acyclic nucleoside analogues of imidazo[1,2-a]pyridine and pyrimidine are reported. From these compounds, 20, 21, 22, 23, 28, and 34 showed a specific activity against cytomegalovirus and/or varicella-zoster virus.
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Affiliation(s)
- A Gueiffier
- Laboratoire de Chimie Organique Pharmaceutique, URA-CNRS 1111, Montpellier, France
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34
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Gueiffier A, Lhassani M, Elhakmaoui A, Snoeck R, Andrei G, Chavignon O, Teulade JC, Kerbal A, Essassi EM, Debouzy JC, Witvrouw M, Blache Y, Balzarini J, De Clercq E, Chapat JP. Synthesis of acyclo-C-nucleosides in the imidazo[1,2-a]pyridine and pyrimidine series as antiviral agents. J Med Chem 1996. [PMID: 8709116 DOI: 10.1021/jm9507901.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The synthesis and the antiviral activities of C-3 acyclic nucleoside analogues of imidazo[1,2-a]pyridine and pyrimidine are reported. From these compounds, 20, 21, 22, 23, 28, and 34 showed a specific activity against cytomegalovirus and/or varicella-zoster virus.
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Affiliation(s)
- A Gueiffier
- Laboratoire de Chimie Organique Pharmaceutique, URA-CNRS 1111, Montpellier, France
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35
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Gueiffier A, Blache Y, Chapat JP, Elhakmaoui A, Essassi EM, Andrei G, Snoeck R, De Clercq E, Chavignon O, Teulade JC, Fauvelle F. Synthesis and Antiviral Activity of 2 and 3-Substituted Imidazo[1,2-a]pyrimidine. Nucleosides, Nucleotides & Nucleic Acids 1995. [DOI: 10.1080/15257779508012425] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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36
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Blache Y, Gueiffier A, Chavignon O, Teulade JC, Milhavet JC, Viols H, Chapat JP, Dauphin G. Heterocyclizations in the pyrido[2,3-b]pyrazine series. J Heterocycl Chem 1994. [DOI: 10.1002/jhet.5570310127] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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37
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Chavignon O, Teulade JC, Madesclaire M, Gueiffier A, Blache Y, Viols H, Chapat JP, Dauphin G. Pyrrolization processes of vinyl substituted imidazo[1,2-a]pyridine, pyrimidine and 1,8-naphthyridine. J Heterocycl Chem 1992. [DOI: 10.1002/jhet.5570290403] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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38
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Gueiffier A, Blache Y, Viols H, Chapat JP, Chavignon O, Teulade JC, Dauphin G, Debouzy JC, Chabard JL. Carbon-nitrogen bond formation in cyclisation by deoxygenation, thermolysis or photolysis of phenylimidazo[1,2-a][1,8]naphthyridines. J Heterocycl Chem 1992. [DOI: 10.1002/jhet.5570290202] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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