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Flament F, Mercurio DG, Muller B, Li J, Tricaud C, Bernerd F, Roudot A, Candau D, Passeron T. The impact of methoxypropylamino cyclohexenylidene ethoxyethylcyanoacetate (MCE) UVA1 filter on pigmentary and ageing signs: An outdoor prospective 8-week randomized, intra-individual comparative study in two populations of different genetic background. J Eur Acad Dermatol Venereol 2024; 38:214-222. [PMID: 37655436 DOI: 10.1111/jdv.19486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 08/11/2023] [Indexed: 09/02/2023]
Abstract
BACKGROUND Of all ultraviolet (UV) radiations reaching the earth, UVA1 rays have a higher potential of penetrating and producing clinically harmful consequences. While UV radiations up to 370 nm are well-blocked by current sunscreens, a photoprotection gap remains for the UVA1 wavelengths between 370 and 400 nm. OBJECTIVE This study was to assess under outdoor summer conditions the impact on pigmentation and skin ageing signs of a protection against UVA1 using methoxypropylamino cyclohexenylidene ethoxyethylcyanoacetate (MCE) filter added to a reference SPF50 sunscreen, in comparison with the same sunscreen without the MCE filter. MATERIALS AND METHODS This prospective randomized comparative intra-individual study was conducted in 113 women in Brazil and China. Subjects had their face and two forearms exposed twice-daily to a 1-h outdoor sunlight exposure over 8 weeks. Before exposure, the SPF50 sunscreen containing 3% MCE was applied on one half-face and one forearm and the same reference product without MCE on the other half-face and forearm. Primary study endpoint was skin colour changes (chromametry). Other endpoints included expert panel grading of pigmentation and facial skin ageing, and naïve panel assessment of facial skin radiance and homogeneity. RESULTS After 8 weeks, the skin was darker on both forearms but the increase in sun-induced pigmentation was smaller with the SPF50/MCE sunscreen. Expert panel evaluations showed no change in severity scores for pigmentation and a decreased severity scores for facial skin ageing in areas protected with the SPF50/MCE product: severity scores in areas protected with the SPF50 alone were either increased (pigmentation) or unchanged (skin ageing). Naïve panel evaluations of skin radiance and homogeneity showed statistically significant superiority of the SPF50/MCE product. CONCLUSION Overall, this study demonstrates that a protection with the SPF50/MCE sunscreen significantly reduces pigmentation and ageing signs compared to the same SPF50 sunscreen.
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Affiliation(s)
- F Flament
- L'Oréal Research and Innovation, Clichy, France
| | - D G Mercurio
- L'Oréal Research and Innovation, Rio de Janeiro, Brazil
| | - B Muller
- L'Oréal Research and Innovation, Clichy, France
| | - J Li
- L'Oréal Research and Innovation, Shanghai, China
| | - C Tricaud
- L'Oréal Research and Innovation, Clichy, France
| | - F Bernerd
- L'Oréal Research and Innovation, Aulnay-sous-Bois, France
| | - A Roudot
- L'Oréal Research and Innovation, Chevilly-Larue, France
| | - D Candau
- L'Oréal Research and Innovation, Chevilly-Larue, France
| | - T Passeron
- CHU Nice, Department of Dermatology, Université Côte d'Azur, Nice, France
- Université Côte d'Azur, INSERM, U1065, C3M, Nice, France
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Licata F, Mohanty NP, Crottini A, Andreone F, Harison RF, Randriamoria TM, Freeman K, Muller B, Birkinshaw C, Tilahimena A, Ficetola GF. Using public surveys to rapidly profile biological invasions in hard‐to‐monitor areas. Anim Conserv 2022. [DOI: 10.1111/acv.12835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- F. Licata
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de Vairão Universidade do Porto Vairão Portugal
- Departamento de Biologia, Faculdade de Ciências Universidade do Porto Porto Portugal
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO Campus de Vairão Vairão Portugal
| | - N. P. Mohanty
- Centre for Ecological Sciences Indian Institute of Science Bangalore India
- Centre for Invasion Biology, Department of Botany and Zoology Stellenbosch University Stellenbosch South Africa
| | - A. Crottini
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de Vairão Universidade do Porto Vairão Portugal
- Departamento de Biologia, Faculdade de Ciências Universidade do Porto Porto Portugal
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO Campus de Vairão Vairão Portugal
| | - F. Andreone
- Museo Regionale di Scienze Naturali Torino Italy
| | - R. F. Harison
- Madagascar Fauna and Flora Group Toamasina Madagascar
- ISSEDD (Institut Supérieur de Science, Environnement et Développement Durable) Université de Toamasina Toamasina Madagascar
| | - T. M. Randriamoria
- Association Vahatra Antananarivo Madagascar
- Mention Zoologie et Biodiversité Animale, Domaine Sciences et Technologies Université d'Antananarivo Antananarivo Madagascar
| | - K. Freeman
- Madagascar Fauna and Flora Group Toamasina Madagascar
| | - B. Muller
- Madagascar Fauna and Flora Group Toamasina Madagascar
| | - C. Birkinshaw
- Missouri Botanical Garden – Madagascar Research and Conservation Program Antananarivo Madagascar
| | - A. Tilahimena
- Missouri Botanical Garden – Madagascar Research and Conservation Program Antananarivo Madagascar
| | - G. F. Ficetola
- Department of Environmental Science and Policy Università degli Studi di Milano Milan Italy
- CNRS, Laboratoire d'Écologie Alpine (LECA) Univ. Grenoble Alpes Grenoble France
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Cardouat G, Douard M, Bouchet C, Kmecová Z, Robillard P, Delcambre F, Marthan R, Muller B, Guibert C, Freund-Michel V. Short-term mechanisms activated by the nerve growth factor NGF to induce pulmonary arterial hyperreactivity. Rev Mal Respir 2022. [DOI: 10.1016/j.rmr.2022.02.029] [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: 11/24/2022]
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Deweirdt J, Ducret T, Quignard JF, Freund-Michel V, Lacomme S, Gontier E, Muller B, Marthan R, Guibert C, Baudrimont I. Effects of FW2 Nanoparticles Toxicity in a New In Vitro Pulmonary Vascular Cells Model Mimicking Endothelial Dysfunction. Cardiovasc Toxicol 2021; 22:14-28. [PMID: 34524626 DOI: 10.1007/s12012-021-09679-6] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 07/22/2021] [Indexed: 11/29/2022]
Abstract
Several epidemiological studies have revealed the involvement of nanoparticles (NPs) in respiratory and cardiovascular mortality. In this work, the focus will be on the effect of manufactured carbon black NPs for risk assessment of consumers and workers, as human exposure is likely to increase. Since the pulmonary circulation could be one of the primary targets of inhaled NPs, patients suffering from pulmonary hypertension (PH) could be a population at risk. To compare the toxic effect of carbon black NPs in the pulmonary circulation under physiologic and pathological conditions, we developed a new in vitro model mimicking the endothelial dysfunction and vascular dynamics observed in vascular pathology such as PH. Human pulmonary artery endothelial cells were cultured under physiological conditions (static and normoxia 21% O2) or under pathological conditions (20% cycle stretch and hypoxia 1% O2). Then, cells were treated for 4 or 6 h with carbon black FW2 NPs from 5 to 10 µg/cm2. Different endpoints were studied: (i) NPs internalization by transmission electronic microscopy; (ii) oxidative stress by CM-H2DCFDA probe and electron paramagnetic resonance; (iii) NO (nitrites and nitrates) production by Griess reaction; (iv) inflammation by ELISA assay; and (v) calcium signaling by confocal microscopy. The present study characterizes the in vitro model mimicking endothelial dysfunction in PH and indicates that, under such pathological conditions, oxidative stress and inflammation are increased along with calcium signaling alterations, as compared to the physiological conditions. Human exposure to carbon black NPs could produce greater deleterious effects in vulnerable patients suffering from cardiovascular diseases.
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Affiliation(s)
- J Deweirdt
- University of Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux, U 1045, 33000, Bordeaux, France.,Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 33604, Pessac, France
| | - T Ducret
- University of Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux, U 1045, 33000, Bordeaux, France.,Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 33604, Pessac, France
| | - J-F Quignard
- University of Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux, U 1045, 33000, Bordeaux, France.,Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 33604, Pessac, France
| | - V Freund-Michel
- University of Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux, U 1045, 33000, Bordeaux, France.,Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 33604, Pessac, France
| | - S Lacomme
- CNRS, Bordeaux Imaging Center UMS 3420 CNRS - US4 INSERM, 33000, Bordeaux, France
| | - E Gontier
- CNRS, Bordeaux Imaging Center UMS 3420 CNRS - US4 INSERM, 33000, Bordeaux, France
| | - B Muller
- University of Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux, U 1045, 33000, Bordeaux, France.,Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 33604, Pessac, France
| | - R Marthan
- University of Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux, U 1045, 33000, Bordeaux, France.,Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 33604, Pessac, France.,CHU de Bordeaux, Service d'Exploration Fonctionnelle Respiratoire, 33000, Bordeaux, France
| | - C Guibert
- University of Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux, U 1045, 33000, Bordeaux, France.,Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 33604, Pessac, France
| | - I Baudrimont
- University of Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux, U 1045, 33000, Bordeaux, France. .,Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 33604, Pessac, France.
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Bouchet A, Muller B, Olagne J, Rabeyrin M, Dubois V, Parissiadi A, Koenig A, Morelon E, Caillard S, Thaunat O. Après traitement d’un rejet humoral aigu, la réalisation d’une biopsie de contrôle permet de stratifier le risque de perte de greffon rénal. Nephrol Ther 2021. [DOI: 10.1016/j.nephro.2021.07.323] [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: 10/20/2022]
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Cardouat G, Douard M, Roubenne L, Bouchet C, Kmecová Z, Robillard P, Guignabert C, Tu L, Delcambre F, Marthan R, Muller B, Guibert C, Freund-Michel V. NGF induces pulmonary arterial hyperreactivity through Connexin 43 increased expression. Rev Mal Respir 2021. [DOI: 10.1016/j.rmr.2021.02.029] [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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Cardouat G, Douard M, Roubenne L, Kmecova S, Robillard P, Guignabert C, Tu L, Delcambre F, Dubois M, Marthan R, Muller B, Guibert C, Freund-Michel V. NGF induces pulmonary arterial hyperreactivity through Connexin 43 increased expression. Archives of Cardiovascular Diseases Supplements 2020. [DOI: 10.1016/j.acvdsp.2020.03.036] [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: 11/28/2022]
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Rouquette L, Batailler C, Muller B, Neyret P, Servien E, Lustig S. Early complications and causes of revision after rotating-hinge TKA. Arch Orthop Trauma Surg 2020; 140:109-119. [PMID: 31664574 DOI: 10.1007/s00402-019-03290-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Indexed: 11/30/2022]
Abstract
INTRODUCTION The use of rotating-hinge total knee arthroplasties (TKA), despite several developments in prosthetic design, remains controversial. Results as well as indications of these devices are still discussed in primary intention and for young patients. The aim was to analyze early complications and survival rate of rotating-hinge TKA in primary intention and for revisions. METHODS A retrospective study included all the patients operated for primary or revision TKA procedure using a rotating-hinge TKA between 2015 and 2018. Clinical and radiological data were collected before surgery and then at a minimum follow-up of 1 year. The primary endpoint was the aseptic revision-free survival rate. Secondary endpoints were the overall survival rate, IKS scores, range of motion and patellar complications. RESULTS Forty patients were included at an average follow-up of 18 months. Primary implantation was performed for 12 patients (30%), and revision for 28 cases (70%). At a mean follow-up of 18 months, only one implant was removed for a septic cause. The cumulative survival rate at 24 months was 95%. At final review, eight knees (20%) had been revised, five (12.5%) due to infection, two (5%) because of extensor mechanism failure, two (5%) for global stiffness. The objective and subjective IKS were significantly higher postoperatively in both primary and revision groups (p < 0.0001). Patellar height was significantly smaller after revision (p = 0.04), while ROM significantly improved in this group (p = 0.02). At final endpoint, one implant was removed for a septic cause. CONCLUSION This rotating-hinge TKA provides satisfying clinical and functional outcomes in primary intentions and in revision cases. There was no implant-associated complication. The complication rate remains high for revision surgery cases, mostly due to previous joint infections and poor soft tissue quality causing extensor mechanism failure. A longer-term study should be conducted to confirm this trend.
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Affiliation(s)
- L Rouquette
- Orthopedic Surgery Department, Hôpital de la Croix-Rousse, Université Lyon 1, 103 Grande rue de la Croix-Rousse, 69004, Lyon, France
| | - C Batailler
- Orthopedic Surgery Department, Hôpital de la Croix-Rousse, Université Lyon 1, 103 Grande rue de la Croix-Rousse, 69004, Lyon, France.
| | - B Muller
- Orthopedic Surgery Department, Hôpital de la Croix-Rousse, Université Lyon 1, 103 Grande rue de la Croix-Rousse, 69004, Lyon, France
| | - P Neyret
- Orthopedic Surgery Department, Hôpital de la Croix-Rousse, Université Lyon 1, 103 Grande rue de la Croix-Rousse, 69004, Lyon, France
| | - E Servien
- Orthopedic Surgery Department, Hôpital de la Croix-Rousse, Université Lyon 1, 103 Grande rue de la Croix-Rousse, 69004, Lyon, France
| | - S Lustig
- Orthopedic Surgery Department, Hôpital de la Croix-Rousse, Université Lyon 1, 103 Grande rue de la Croix-Rousse, 69004, Lyon, France
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Thiesse L, Kemethofer M, Muller B, Fuchs G, Gruber G, Parapatics S, Loretz E, Friedrich S, Dorffner G, Viola A. Sleep analysis with somno-art software as compared to somnolyzer, a validated computer-assisted sleep classification, in apneic patients and healthy controls: a valid alternative? Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.1065] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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10
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Cardouat G, Douard M, Robillard P, Dubois M, Marthan R, Muller B, Guibert C, Freund-Michel V. Short-term mechanisms activated by the nerve growth factor NGF to induce pulmonary arterial hyperreactivity. Archives of Cardiovascular Diseases Supplements 2019. [DOI: 10.1016/j.acvdsp.2019.02.045] [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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Pilard C, Dubois M, Renesme L, Quignard J, Marthan R, Muller B, Guibert C, Dumas De La Roque E. Effects of celastrol in a mouse model of pulmonary hypertension associated with bronchopulmonary dysplasia induced by hyperoxia. Archives of Cardiovascular Diseases Supplements 2019. [DOI: 10.1016/j.acvdsp.2018.10.299] [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: 11/25/2022]
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Kappler JP, Otero E, Li W, Joly L, Schmerber G, Muller B, Scheurer F, Leduc F, Gobaut B, Poggini L, Serrano G, Choueikani F, Lhotel E, Cornia A, Sessoli R, Mannini M, Arrio MA, Sainctavit P, Ohresser P. Ultralow-temperature device dedicated to soft X-ray magnetic circular dichroism experiments. J Synchrotron Radiat 2018; 25:1727-1735. [PMID: 30407183 PMCID: PMC6225739 DOI: 10.1107/s1600577518012717] [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] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 09/07/2018] [Indexed: 06/08/2023]
Abstract
A new ultralow-temperature setup dedicated to soft X-ray absorption spectroscopy and X-ray magnetic circular dichroism (XMCD) experiments is described. Two experiments, performed on the DEIMOS beamline (SOLEIL synchrotron), demonstrate the outstanding performance of this new platform in terms of the lowest achievable temperature under X-ray irradiation (T = 220 mK), the precision in controlling the temperature during measurements as well as the speed of the cooling-down and warming-up procedures. Moreover, owing to the new design of the setup, the eddy-current power is strongly reduced, allowing fast scanning of the magnetic field in XMCD experiments; these performances lead to a powerful device for X-ray spectroscopies on synchrotron-radiation beamlines facilities.
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Affiliation(s)
- J.-P. Kappler
- Synchrotron SOLEIL, L’Orme des Merisiers, BP 48, 91192 Gif-sur-Yvette, France
| | - E. Otero
- Synchrotron SOLEIL, L’Orme des Merisiers, BP 48, 91192 Gif-sur-Yvette, France
| | - W. Li
- Synchrotron SOLEIL, L’Orme des Merisiers, BP 48, 91192 Gif-sur-Yvette, France
| | - L. Joly
- Synchrotron SOLEIL, L’Orme des Merisiers, BP 48, 91192 Gif-sur-Yvette, France
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, 23 rue du Loess, 67034 Strasbourg, France
| | - G. Schmerber
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, 23 rue du Loess, 67034 Strasbourg, France
| | - B. Muller
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, 23 rue du Loess, 67034 Strasbourg, France
| | - F. Scheurer
- Synchrotron SOLEIL, L’Orme des Merisiers, BP 48, 91192 Gif-sur-Yvette, France
- Université de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, 23 rue du Loess, 67034 Strasbourg, France
| | - F. Leduc
- Synchrotron SOLEIL, L’Orme des Merisiers, BP 48, 91192 Gif-sur-Yvette, France
| | - B. Gobaut
- Synchrotron SOLEIL, L’Orme des Merisiers, BP 48, 91192 Gif-sur-Yvette, France
| | - L. Poggini
- Department of Chemistry ‘U. Schiff’ and INSTM RU, University of Firenze, Via della Lastruccia n. 3, 50019 Sesto Fiorentino (FI), Italy
| | - G. Serrano
- Department of Chemistry ‘U. Schiff’ and INSTM RU, University of Firenze, Via della Lastruccia n. 3, 50019 Sesto Fiorentino (FI), Italy
| | - F. Choueikani
- Synchrotron SOLEIL, L’Orme des Merisiers, BP 48, 91192 Gif-sur-Yvette, France
| | - E. Lhotel
- Institut Néel, 25 rue des Martyrs, 38042 Grenoble, France
| | - A. Cornia
- Department of Chemical and Geological Sciences and INSTM RU, University of Modena and Reggio Emilia, via G. Campi 103, I-41125 Modena, Italy
| | - R. Sessoli
- Department of Chemistry ‘U. Schiff’ and INSTM RU, University of Firenze, Via della Lastruccia n. 3, 50019 Sesto Fiorentino (FI), Italy
| | - M. Mannini
- Department of Chemistry ‘U. Schiff’ and INSTM RU, University of Firenze, Via della Lastruccia n. 3, 50019 Sesto Fiorentino (FI), Italy
| | - M.-A. Arrio
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie, CNRS, Sorbonne Université, IRD, MNHN, UMR 7590, 4 place Jussieu, 75252 Paris Cedex 05, France
| | - Ph. Sainctavit
- Synchrotron SOLEIL, L’Orme des Merisiers, BP 48, 91192 Gif-sur-Yvette, France
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie, CNRS, Sorbonne Université, IRD, MNHN, UMR 7590, 4 place Jussieu, 75252 Paris Cedex 05, France
| | - P. Ohresser
- Synchrotron SOLEIL, L’Orme des Merisiers, BP 48, 91192 Gif-sur-Yvette, France
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Douard M, Robillard P, Deweirdt J, Baudrimont I, Dubois M, Marthan R, Savineau J, Muller B, Guibert C, Freund-Michel V. Connexin-43 expression is increased by the nerve growth factor (NGF) and contributes to pulmonary arterial altered reactivity in pulmonary hypertension. Archives of Cardiovascular Diseases Supplements 2018. [DOI: 10.1016/j.acvdsp.2018.02.156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Guyomarc'h N, Muller B, Combes X. Nécrolyse épidermique toxique type Steven-Johnson induite par l'association de métronidazole et de spiramycine pour le traitement d'une infection dentaire. Ann Fr Med Urgence 2018. [DOI: 10.3166/afmu-2018-0018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Deweirdt J, Quignard JF, Crobeddu B, Baeza-Squiban A, Sciare J, Courtois A, Lacomme S, Gontier E, Muller B, Savineau JP, Marthan R, Guibert C, Baudrimont I. Involvement of oxidative stress and calcium signaling in airborne particulate matter - induced damages in human pulmonary artery endothelial cells. Toxicol In Vitro 2017; 45:340-350. [PMID: 28688989 DOI: 10.1016/j.tiv.2017.07.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [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: 02/10/2017] [Revised: 06/19/2017] [Accepted: 07/04/2017] [Indexed: 11/30/2022]
Abstract
Recent studies have revealed that particulate matter (PM) exert deleterious effects on vascular function. Pulmonary artery endothelial cells (HPAEC), which are involved in the vasomotricity regulation, can be a direct target of inhaled particles. Modifications in calcium homeostasis and oxidative stress are critical events involved in the physiopathology of vascular diseases. The objectives of this study were to assess the effects of PM2.5 on oxidative stress and calcium signaling in HPAEC. Different endpoints were studied, (i) intrinsic and intracellular production of reactive oxygen species (ROS) by the H2DCF-DA probe, (ii) intrinsic, intracellular and mitochondrial production of superoxide anion (O2-) by electronic paramagnetic resonance spectroscopy and MitoSOX probe, (iii) reactive nitrosative species (RNS) production by Griess reaction, and (vi) calcium signaling by the Fluo-4 probe. In acellular conditions, PM2.5 leads to an intrinsic free radical production (ROS, O2-) and a 4h-exposure to PM2.5 (5-15μg/cm2), induced, in HPAEC, an increase of RNS, of global ROS and of cytoplasmic and mitochondrial O2- levels. The basal intracellular calcium ion level [Ca2+]i was also increased after 4h-exposure to PM2.5 and a pre-treatment with superoxide dismutase and catalase significantly reduced this response. This study provides evidence that the alteration of intracellular calcium homeostasis induced by PM2.5 is closely correlated to an increase of oxidative stress.
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Affiliation(s)
- J Deweirdt
- Université de Bordeaux, 146, rue Léo Saignat, Bordeaux F-33076, France; Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 146, rue Léo Saignat, Bordeaux F-33076, France
| | - J F Quignard
- Université de Bordeaux, 146, rue Léo Saignat, Bordeaux F-33076, France; Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 146, rue Léo Saignat, Bordeaux F-33076, France
| | - B Crobeddu
- Université Paris Diderot, Sorbonne Paris Cité, Unit of Functional and Adaptive Biology (BFA) UMR 8251 CNRS, F-75205 Paris, France
| | - A Baeza-Squiban
- Université Paris Diderot, Sorbonne Paris Cité, Unit of Functional and Adaptive Biology (BFA) UMR 8251 CNRS, F-75205 Paris, France
| | - J Sciare
- Laboratoire des Sciences du Climat et de l'Environnement (LSCE), CEA-CNRS, Centre de Saclay, F-91190 Gif sur Yvette, France; Energy Environment Water Research Center, The Cyprus Institute, 2121 Nicosia, Cyprus
| | - A Courtois
- Université de Bordeaux, 146, rue Léo Saignat, Bordeaux F-33076, France; Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 146, rue Léo Saignat, Bordeaux F-33076, France; Centre Hospitalier Universitaire de Bordeaux, Centre AntiPoison et de Toxicovigilance d'Aquitaine et de Poitou Charente et Service d'Exploration Fonctionnelle Respiratoire, Place Amélie Raba Léon, Bordeaux F-33076, France
| | - S Lacomme
- Université de Bordeaux, 146, rue Léo Saignat, Bordeaux F-33076, France; Bordeaux Imaging Center UMS 3420 CNRS - US4 INSERM, Pôle d'imagerie électronique, 146, rue Léo Saignat, Bordeaux F-33076, France
| | - E Gontier
- Université de Bordeaux, 146, rue Léo Saignat, Bordeaux F-33076, France; Bordeaux Imaging Center UMS 3420 CNRS - US4 INSERM, Pôle d'imagerie électronique, 146, rue Léo Saignat, Bordeaux F-33076, France
| | - B Muller
- Université de Bordeaux, 146, rue Léo Saignat, Bordeaux F-33076, France; Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 146, rue Léo Saignat, Bordeaux F-33076, France
| | - J P Savineau
- Université de Bordeaux, 146, rue Léo Saignat, Bordeaux F-33076, France; Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 146, rue Léo Saignat, Bordeaux F-33076, France
| | - R Marthan
- Université de Bordeaux, 146, rue Léo Saignat, Bordeaux F-33076, France; Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 146, rue Léo Saignat, Bordeaux F-33076, France; Centre Hospitalier Universitaire de Bordeaux, Centre AntiPoison et de Toxicovigilance d'Aquitaine et de Poitou Charente et Service d'Exploration Fonctionnelle Respiratoire, Place Amélie Raba Léon, Bordeaux F-33076, France
| | - C Guibert
- Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 146, rue Léo Saignat, Bordeaux F-33076, France
| | - I Baudrimont
- Université de Bordeaux, 146, rue Léo Saignat, Bordeaux F-33076, France; Inserm U1045, Centre de Recherche Cardio-Thoracique de Bordeaux, 146, rue Léo Saignat, Bordeaux F-33076, France.
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Gooris P, Seubring K, Becking A, Muller B, Bergsma J, Dubois L. Analysis of bony landmarks of the orbit “an aid in the localisation of the orbital process of the palatine bone”. Int J Oral Maxillofac Surg 2017. [DOI: 10.1016/j.ijom.2017.02.285] [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: 10/19/2022]
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Heydarchi B, Center RJ, Bebbington J, Cuthbertson J, Gonelli C, Khoury G, Mackenzie C, Lichtfuss M, Rawlin G, Muller B, Purcell D. Trimeric gp120-specific bovine monoclonal antibodies require cysteine and aromatic residues in CDRH3 for high affinity binding to HIV Env. MAbs 2016; 9:550-566. [PMID: 27996375 PMCID: PMC5384801 DOI: 10.1080/19420862.2016.1270491] [Citation(s) in RCA: 4] [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] [Indexed: 10/29/2022] Open
Abstract
We isolated HIV-1 Envelope (Env)-specific memory B cells from a cow that had developed high titer polyclonal immunoglobulin G (IgG) with broad neutralizing activity after a long duration vaccination with HIV-1AD8 Env gp140 trimers. We cloned the bovine IgG matched heavy (H) and light (L) chain variable (V) genes from these memory B cells and constructed IgG monoclonal antibodies (mAbs) with either a human constant (C)-region/bovine V-region chimeric or fully bovine C and V regions. Among 42 selected Ig+ memory B cells, two mAbs (6A and 8C) showed high affinity binding to gp140 Env. Characterization of both the fully bovine and human chimeric isoforms of these two mAbs revealed them as highly type-specific and capable of binding only to soluble AD8 uncleaved gp140 trimers and covalently stabilized AD8 SOSIP gp140 cleaved trimers, but not monomeric gp120. Genomic sequence analysis of the V genes showed the third heavy complementarity-determining region (CDRH3) of 6A mAb was 21 amino acids in length while 8C CDRH3 was 14 amino acids long. The entire V heavy (VH) region was 27% and 25% diverged for 6A and 8C, respectively, from the best matched germline V genes available, and the CDRH3 regions of 6A and 8C were 47.62% and 78.57% somatically mutated, respectively, suggesting a high level of somatic hypermutation compared with CDRH3 of other species. Alanine mutagenesis of the VH genes of 6A and 8C, showed that CDRH3 cysteine and tryptophan amino acids were crucial for antigen binding. Therefore, these bovine vaccine-induced anti-HIV antibodies shared some of the notable structural features of elite human broadly neutralizing antibodies, such as CDRH3 size and somatic mutation during affinity-maturation. However, while the 6A and 8C mAbs inhibited soluble CD4 binding to gp140 Env, they did not recapitulate the neutralizing activity of the polyclonal antibodies against HIV infection.
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Affiliation(s)
- Behnaz Heydarchi
- a Department of Microbiology and Immunology , The University of Melbourne at The Peter Doherty Institute for Infection & Immunity , Melbourne , VIC , Australia
| | - Rob J Center
- a Department of Microbiology and Immunology , The University of Melbourne at The Peter Doherty Institute for Infection & Immunity , Melbourne , VIC , Australia
| | - Jonathan Bebbington
- a Department of Microbiology and Immunology , The University of Melbourne at The Peter Doherty Institute for Infection & Immunity , Melbourne , VIC , Australia
| | - Jack Cuthbertson
- a Department of Microbiology and Immunology , The University of Melbourne at The Peter Doherty Institute for Infection & Immunity , Melbourne , VIC , Australia
| | - Christopher Gonelli
- a Department of Microbiology and Immunology , The University of Melbourne at The Peter Doherty Institute for Infection & Immunity , Melbourne , VIC , Australia
| | - Georges Khoury
- a Department of Microbiology and Immunology , The University of Melbourne at The Peter Doherty Institute for Infection & Immunity , Melbourne , VIC , Australia
| | - Charlene Mackenzie
- a Department of Microbiology and Immunology , The University of Melbourne at The Peter Doherty Institute for Infection & Immunity , Melbourne , VIC , Australia
| | - Marit Lichtfuss
- a Department of Microbiology and Immunology , The University of Melbourne at The Peter Doherty Institute for Infection & Immunity , Melbourne , VIC , Australia
| | - Grant Rawlin
- a Department of Microbiology and Immunology , The University of Melbourne at The Peter Doherty Institute for Infection & Immunity , Melbourne , VIC , Australia
| | - Brian Muller
- a Department of Microbiology and Immunology , The University of Melbourne at The Peter Doherty Institute for Infection & Immunity , Melbourne , VIC , Australia
| | - Damian Purcell
- a Department of Microbiology and Immunology , The University of Melbourne at The Peter Doherty Institute for Infection & Immunity , Melbourne , VIC , Australia
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Abstract
Agent-based models offer a promising framework for analyzing interactions between agents and a heterogeneous landscape. Researchers have identified a complex of factors that influence exurban development, including demographic shifts and location attractiveness of natural amenities as a magnet to amenity-seeking migrants. Attractiveness is often defined in terms of local or on-lot amenities, including scenic views, the availability of natural features, and low levels of noise. However, exurban-growth models have not fully incorporated a fundamental insight of this literature, that the location behavior of exurban residents is sensitive to fine-grained variations in their biophysical environment. In this study we evaluate how agents and households operate in exurban environments and respond to biophysical features. We simulate household decisionmaking in terms of preferences for features such as site accessibility, two-dimensional amenities, and three-dimensional scenic views. Our results show that, as we build two-dimensional and three-dimensional landscape layers, our model captures the characteristics of landscape change with increasing accuracy. This approach has considerable potential to improve our ability to describe development dynamics in heterogeneous land markets.
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Affiliation(s)
- Li Yin
- Department of Urban and Regional Planning, School of Architecture and Planning, State University of New York at Buffalo, 116 Hayes Hall, 3435 Main Street, Buffalo, NY 14214-3087, USA
| | - Brian Muller
- College of Architecture and Planning, University of Colorado at Denver, Boulder, CO 80309-0314, USA
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Heydarchi B, Center RJ, Gonelli C, Muller B, Mackenzie C, Khoury G, Lichtfuss M, Rawlin G, Purcell DFJ. Repeated Vaccination of Cows with HIV Env gp140 during Subsequent Pregnancies Elicits and Sustains an Enduring Strong Env-Binding and Neutralising Antibody Response. PLoS One 2016; 11:e0157353. [PMID: 27300145 PMCID: PMC4907510 DOI: 10.1371/journal.pone.0157353] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Accepted: 05/28/2016] [Indexed: 11/18/2022] Open
Abstract
An important feature of a potential vaccine against HIV is the production of broadly neutralising antibodies (BrNAbs) capable of potentially blocking infectivity of a diverse array of HIV strains. BrNAbs naturally arise in some HIV infected individuals after several years of infection and their serum IgG can neutralise various HIV strains across different subtypes. We previously showed that vaccination of cows with HIV gp140 AD8 trimers resulted in a high titre of serum IgG against HIV envelope (Env) that had strong BrNAb activity. These polyclonal BrNAbs concentrated into the colostrum during the late stage of pregnancy and can be harvested in vast quantities immediately after calving. In this study, we investigated the effect of prolonged HIV gp140 vaccination on bovine colostrum IgG HIV Env-binding and BrNAb activity over subsequent pregnancies. Repeated immunisation led to a maintained high titre of HIV Env specific IgG in the colostrum batches, but this did not increase through repeated cycles. Colostrum IgG from all batches also strongly competed with sCD4 binding to gp140 Env trimer and with human-derived monoclonal VRC01 and b12 BrNAbs that bind the CD4 binding site (CD4bs). Furthermore, competition neutralisation assays using RSC3 Env gp120 protein core and a derivative CD4bs mutant, RSC3 Δ371I/P363N, showed that CD4bs neutralising antibodies contribute to the neutralising activity of all batches of purified bovine colostrum IgG. This result indicates that the high IgG titre/avidity of anti-CD4bs antibodies with BrNAb activity was achieved during the first year of vaccination and was sustained throughout the years of repeated vaccinations in the cow tested. Although IgG of subsequent colostrum batches may have a higher avidity towards the CD4bs, the overall breadth in neutralisation was not enhanced. This implies that the boosting vaccinations over 4 years elicited a polyclonal antibody response that maintained the proportion of both neutralising and non-neutralising CD4bs antibodies.
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Affiliation(s)
- Behnaz Heydarchi
- Department of Microbiology and Immunology, at The Peter Doherty Institute for Infection & Immunity, The University of Melbourne, Melbourne, Victoria, Australia
| | - Rob J. Center
- Department of Microbiology and Immunology, at The Peter Doherty Institute for Infection & Immunity, The University of Melbourne, Melbourne, Victoria, Australia
| | - Christopher Gonelli
- Department of Microbiology and Immunology, at The Peter Doherty Institute for Infection & Immunity, The University of Melbourne, Melbourne, Victoria, Australia
| | - Brian Muller
- Department of Microbiology and Immunology, at The Peter Doherty Institute for Infection & Immunity, The University of Melbourne, Melbourne, Victoria, Australia
| | - Charlene Mackenzie
- Department of Microbiology and Immunology, at The Peter Doherty Institute for Infection & Immunity, The University of Melbourne, Melbourne, Victoria, Australia
| | - Georges Khoury
- Department of Microbiology and Immunology, at The Peter Doherty Institute for Infection & Immunity, The University of Melbourne, Melbourne, Victoria, Australia
| | - Marit Lichtfuss
- Department of Microbiology and Immunology, at The Peter Doherty Institute for Infection & Immunity, The University of Melbourne, Melbourne, Victoria, Australia
| | - Grant Rawlin
- Department of Microbiology and Immunology, at The Peter Doherty Institute for Infection & Immunity, The University of Melbourne, Melbourne, Victoria, Australia
| | - Damian F. J. Purcell
- Department of Microbiology and Immunology, at The Peter Doherty Institute for Infection & Immunity, The University of Melbourne, Melbourne, Victoria, Australia
- * E-mail:
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Joly L, Muller B, Sternitzky E, Faullumel JG, Boulard A, Otero E, Choueikani F, Kappler JP, Studniarek M, Bowen M, Ohresser P. Versatile variable temperature insert at the DEIMOS beamline for in situ electrical transport measurements. J Synchrotron Radiat 2016; 23:652-657. [PMID: 27140143 DOI: 10.1107/s1600577516002551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Accepted: 02/11/2016] [Indexed: 06/05/2023]
Abstract
The design and the first experiments are described of a versatile cryogenic insert used for its electrical transport capabilities. The insert is designed for the cryomagnet installed on the DEIMOS beamline at the SOLEIL synchrotron dedicated to magnetic characterizations through X-ray absorption spectroscopy (XAS) measurements. This development was spurred by the multifunctional properties of novel materials such as multiferroics, in which, for example, the magnetic and electrical orders are intertwined and may be probed using XAS. The insert thus enables XAS to in situ probe this interplay. The implementation of redundant wiring and careful shielding also enables studies on operating electronic devices. Measurements on magnetic tunnel junctions illustrate the potential of the equipment toward XAS studies of in operando electronic devices.
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Affiliation(s)
- L Joly
- Institut de Physique et de Chimie des Materiaux de Strasbourg, Université de Strasbourg, UMR 7504, 23 Rue du Loess, BP 43, 67034 Strasbourg Cedex 2, France
| | - B Muller
- Institut de Physique et de Chimie des Materiaux de Strasbourg, Université de Strasbourg, UMR 7504, 23 Rue du Loess, BP 43, 67034 Strasbourg Cedex 2, France
| | - E Sternitzky
- Institut de Physique et de Chimie des Materiaux de Strasbourg, Université de Strasbourg, UMR 7504, 23 Rue du Loess, BP 43, 67034 Strasbourg Cedex 2, France
| | - J G Faullumel
- Institut de Physique et de Chimie des Materiaux de Strasbourg, Université de Strasbourg, UMR 7504, 23 Rue du Loess, BP 43, 67034 Strasbourg Cedex 2, France
| | - A Boulard
- Institut de Physique et de Chimie des Materiaux de Strasbourg, Université de Strasbourg, UMR 7504, 23 Rue du Loess, BP 43, 67034 Strasbourg Cedex 2, France
| | - E Otero
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette, France
| | - F Choueikani
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette, France
| | - J P Kappler
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette, France
| | - M Studniarek
- Institut de Physique et de Chimie des Materiaux de Strasbourg, Université de Strasbourg, UMR 7504, 23 Rue du Loess, BP 43, 67034 Strasbourg Cedex 2, France
| | - M Bowen
- Institut de Physique et de Chimie des Materiaux de Strasbourg, Université de Strasbourg, UMR 7504, 23 Rue du Loess, BP 43, 67034 Strasbourg Cedex 2, France
| | - P Ohresser
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, BP 48, 91192 Gif-sur-Yvette, France
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Reuter PG, Muller B, Akodad H, Linval F, Adnet F, Lapostolle F. Devenir à court terme des patients utilisateurs de leur dispositif de téléalarme – Étude Télé-al-arm 2. Ann Fr Med Urgence 2016. [DOI: 10.1007/s13341-016-0642-z] [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: 11/25/2022]
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22
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Llera AS, Podhajcer OL, Breitenbach MM, Santini L, Muller B, Daneri-Navarro A, Velázquez CA, Artagaveytia N, Gómez J, Frech MS, Brown T, Gross T. Translational cancer research comes of age in Latin America. Sci Transl Med 2015; 7:319fs50. [DOI: 10.1126/scitranslmed.aad5859] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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23
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Lotz J, Olesch J, Muller B, Polzin T, Galuschka P, Lotz JM, Heldmann S, Laue H, Gonzalez-Vallinas M, Warth A, Lahrmann B, Grabe N, Sedlaczek O, Breuhahn K, Modersitzki J. Patch-Based Nonlinear Image Registration for Gigapixel Whole Slide Images. IEEE Trans Biomed Eng 2015; 63:1812-1819. [PMID: 26625400 DOI: 10.1109/tbme.2015.2503122] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE Image registration of whole slide histology images allows the fusion of fine-grained information-like different immunohistochemical stains-from neighboring tissue slides. Traditionally, pathologists fuse this information by looking subsequently at one slide at a time. If the slides are digitized and accurately aligned at cell level, automatic analysis can be used to ease the pathologist's work. However, the size of those images exceeds the memory capacity of regular computers. METHODS We address the challenge to combine a global motion model that takes the physical cutting process of the tissue into account with image data that is not simultaneously globally available. Typical approaches either reduce the amount of data to be processed or partition the data into smaller chunks to be processed separately. Our novel method first registers the complete images on a low resolution with a nonlinear deformation model and later refines this result on patches by using a second nonlinear registration on each patch. Finally, the deformations computed on all patches are combined by interpolation to form one globally smooth nonlinear deformation. The NGF distance measure is used to handle multistain images. RESULTS The method is applied to ten whole slide image pairs of human lung cancer data. The alignment of 85 corresponding structures is measured by comparing manual segmentations from neighboring slides. Their offset improves significantly, by at least 15%, compared to the low-resolution nonlinear registration. CONCLUSION/SIGNIFICANCE The proposed method significantly improves the accuracy of multistain registration which allows us to compare different antibodies at cell level.
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Walus I, Richard G, Laquerrière B, Perucca M, Tuveri R, Einbinder V, Muller B, Beydon N. [Underdiagnosed asthma in third-grade children]. Arch Pediatr 2015; 23:9-13. [PMID: 26586545 DOI: 10.1016/j.arcped.2015.10.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Revised: 09/20/2015] [Accepted: 10/08/2015] [Indexed: 10/22/2022]
Abstract
Undiagnosed asthma has been poorly studied before adolescence since it can go unnoticed by parents and doctors. Moreover, it is unusual to look for undiagnosed asthma by directly questioning children on the presence of current respiratory symptoms. Epidemiologic studies show that more adolescents quote symptoms suggestive of asthma than the prevalence of doctor-diagnosed asthma, but respiratory symptoms compatible with asthma remain undetected by parents of younger children more frequently than doctors diagnose asthma in their children. We attempted to evaluate the relevance of a questionnaire used since 2011 by school doctors in Paris to detect asthma. In this questionnaire, the family history of atopy and asthma were completed by the parents when they met the school doctor (last year of preschool) and questions on current respiratory symptoms were answered by third-grade children seen alone by the school doctor. One hundred and thirty-one children out of 1135 children questioned had a positive questionnaire for suspected asthma. In three-quarters of the cases, questionnaires were positive based on the children's answers on their respiratory symptoms (without a positive answer on personal or family history being necessary). The outcome of 41 children screened by the questionnaire was known. Twenty (49%) children had received a final diagnosis of asthma, of whom 12 were put on asthma controllers. Among these 20 children, two children underwent lung function testing and two others underwent tests for allergy. In eight children, tests had been requested by the child's GP, but no final diagnosis was reported by the parents. None of the 13 children in whom asthma was ruled out had any test performed. It was concluded that it is possible to detect undiagnosed asthma in children as young as 8 years by directly asking them about their respiratory symptoms. The knowledge of personal and family history can improve screening for asthma in these children. A more thorough evaluation of all children with a positive questionnaire is necessary to better understand the properties of the questionnaire. Finally, the best way to implement this screening program remains to be established (school health, GPs).
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Affiliation(s)
- I Walus
- Service de santé scolaire, sous-direction de la santé, Dases, 75012 Paris, France
| | - G Richard
- Service de santé scolaire, sous-direction de la santé, Dases, 75012 Paris, France
| | - B Laquerrière
- Service de santé scolaire, sous-direction de la santé, Dases, 75012 Paris, France
| | - M Perucca
- Service de santé scolaire, sous-direction de la santé, Dases, 75012 Paris, France
| | - R Tuveri
- Service de santé scolaire, sous-direction de la santé, Dases, 75012 Paris, France
| | - V Einbinder
- Service de santé scolaire, sous-direction de la santé, Dases, 75012 Paris, France
| | - B Muller
- Service de santé scolaire, sous-direction de la santé, Dases, 75012 Paris, France
| | - N Beydon
- Unité d'exploration fonctionnelle respiratoire et du sommeil, hôpital Trousseau, AP-HP, 26, avenue du Docteur-Arnold-Netter, 75012, Paris, France; Inserm U938, centre de recherche Saint-Antoine, 75012 Paris, France.
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25
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McCormick MA, Delaney JR, Tsuchiya M, Tsuchiyama S, Shemorry A, Sim S, Chou ACZ, Ahmed U, Carr D, Murakami CJ, Schleit J, Sutphin GL, Wasko BM, Bennett CF, Wang AM, Olsen B, Beyer RP, Bammler TK, Prunkard D, Johnson SC, Pennypacker JK, An E, Anies A, Castanza AS, Choi E, Dang N, Enerio S, Fletcher M, Fox L, Goswami S, Higgins SA, Holmberg MA, Hu D, Hui J, Jelic M, Jeong KS, Johnston E, Kerr EO, Kim J, Kim D, Kirkland K, Klum S, Kotireddy S, Liao E, Lim M, Lin MS, Lo WC, Lockshon D, Miller HA, Moller RM, Muller B, Oakes J, Pak DN, Peng ZJ, Pham KM, Pollard TG, Pradeep P, Pruett D, Rai D, Robison B, Rodriguez AA, Ros B, Sage M, Singh MK, Smith ED, Snead K, Solanky A, Spector BL, Steffen KK, Tchao BN, Ting MK, Vander Wende H, Wang D, Welton KL, Westman EA, Brem RB, Liu XG, Suh Y, Zhou Z, Kaeberlein M, Kennedy BK. A Comprehensive Analysis of Replicative Lifespan in 4,698 Single-Gene Deletion Strains Uncovers Conserved Mechanisms of Aging. Cell Metab 2015; 22:895-906. [PMID: 26456335 PMCID: PMC4862740 DOI: 10.1016/j.cmet.2015.09.008] [Citation(s) in RCA: 165] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Revised: 07/31/2015] [Accepted: 09/08/2015] [Indexed: 02/05/2023]
Abstract
Many genes that affect replicative lifespan (RLS) in the budding yeast Saccharomyces cerevisiae also affect aging in other organisms such as C. elegans and M. musculus. We performed a systematic analysis of yeast RLS in a set of 4,698 viable single-gene deletion strains. Multiple functional gene clusters were identified, and full genome-to-genome comparison demonstrated a significant conservation in longevity pathways between yeast and C. elegans. Among the mechanisms of aging identified, deletion of tRNA exporter LOS1 robustly extended lifespan. Dietary restriction (DR) and inhibition of mechanistic Target of Rapamycin (mTOR) exclude Los1 from the nucleus in a Rad53-dependent manner. Moreover, lifespan extension from deletion of LOS1 is nonadditive with DR or mTOR inhibition, and results in Gcn4 transcription factor activation. Thus, the DNA damage response and mTOR converge on Los1-mediated nuclear tRNA export to regulate Gcn4 activity and aging.
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Affiliation(s)
- Mark A McCormick
- Buck Institute for Research on Aging, 8001 Redwood Boulevard, Novato, CA 94945, USA
| | - Joe R Delaney
- Department of Pathology, University of Washington, Seattle, WA 98195, USA; Molecular and Cellular Biology Program, University of Washington, Seattle, WA 98195, USA
| | - Mitsuhiro Tsuchiya
- Buck Institute for Research on Aging, 8001 Redwood Boulevard, Novato, CA 94945, USA
| | - Scott Tsuchiyama
- Buck Institute for Research on Aging, 8001 Redwood Boulevard, Novato, CA 94945, USA
| | - Anna Shemorry
- Department of Pathology, University of Washington, Seattle, WA 98195, USA
| | - Sylvia Sim
- Department of Pathology, University of Washington, Seattle, WA 98195, USA
| | | | - Umema Ahmed
- Department of Pathology, University of Washington, Seattle, WA 98195, USA
| | - Daniel Carr
- Department of Pathology, University of Washington, Seattle, WA 98195, USA
| | | | - Jennifer Schleit
- Department of Pathology, University of Washington, Seattle, WA 98195, USA
| | - George L Sutphin
- Department of Pathology, University of Washington, Seattle, WA 98195, USA; Molecular and Cellular Biology Program, University of Washington, Seattle, WA 98195, USA
| | - Brian M Wasko
- Department of Pathology, University of Washington, Seattle, WA 98195, USA
| | - Christopher F Bennett
- Department of Pathology, University of Washington, Seattle, WA 98195, USA; Molecular and Cellular Biology Program, University of Washington, Seattle, WA 98195, USA
| | - Adrienne M Wang
- Department of Pathology, University of Washington, Seattle, WA 98195, USA
| | - Brady Olsen
- Department of Pathology, University of Washington, Seattle, WA 98195, USA
| | - Richard P Beyer
- Department of Occupational and Environmental Health Sciences, University of Washington, Seattle, WA 98195, USA
| | - Theodor K Bammler
- Department of Occupational and Environmental Health Sciences, University of Washington, Seattle, WA 98195, USA
| | - Donna Prunkard
- Department of Pathology, University of Washington, Seattle, WA 98195, USA
| | - Simon C Johnson
- Department of Pathology, University of Washington, Seattle, WA 98195, USA
| | | | - Elroy An
- Department of Pathology, University of Washington, Seattle, WA 98195, USA
| | - Arieanna Anies
- Buck Institute for Research on Aging, 8001 Redwood Boulevard, Novato, CA 94945, USA
| | - Anthony S Castanza
- Department of Pathology, University of Washington, Seattle, WA 98195, USA
| | - Eunice Choi
- Department of Pathology, University of Washington, Seattle, WA 98195, USA
| | - Nick Dang
- Department of Pathology, University of Washington, Seattle, WA 98195, USA
| | - Shiena Enerio
- Buck Institute for Research on Aging, 8001 Redwood Boulevard, Novato, CA 94945, USA
| | - Marissa Fletcher
- Department of Pathology, University of Washington, Seattle, WA 98195, USA
| | - Lindsay Fox
- Department of Biochemistry, University of Washington, Seattle, WA 98195, USA
| | - Sarani Goswami
- Department of Pathology, University of Washington, Seattle, WA 98195, USA
| | - Sean A Higgins
- Department of Pathology, University of Washington, Seattle, WA 98195, USA
| | - Molly A Holmberg
- Molecular and Cellular Biology Program, University of Washington, Seattle, WA 98195, USA
| | - Di Hu
- Molecular and Cellular Biology Program, University of Washington, Seattle, WA 98195, USA
| | - Jessica Hui
- Department of Pathology, University of Washington, Seattle, WA 98195, USA
| | - Monika Jelic
- Molecular and Cellular Biology Program, University of Washington, Seattle, WA 98195, USA
| | - Ki-Soo Jeong
- Department of Pathology, University of Washington, Seattle, WA 98195, USA
| | - Elijah Johnston
- Department of Pathology, University of Washington, Seattle, WA 98195, USA
| | - Emily O Kerr
- Department of Pathology, University of Washington, Seattle, WA 98195, USA
| | - Jin Kim
- Molecular and Cellular Biology Program, University of Washington, Seattle, WA 98195, USA
| | - Diana Kim
- Molecular and Cellular Biology Program, University of Washington, Seattle, WA 98195, USA
| | - Katie Kirkland
- Department of Pathology, University of Washington, Seattle, WA 98195, USA
| | - Shannon Klum
- Department of Pathology, University of Washington, Seattle, WA 98195, USA
| | - Soumya Kotireddy
- Department of Biochemistry, University of Washington, Seattle, WA 98195, USA
| | - Eric Liao
- Molecular and Cellular Biology Program, University of Washington, Seattle, WA 98195, USA
| | - Michael Lim
- Molecular and Cellular Biology Program, University of Washington, Seattle, WA 98195, USA
| | - Michael S Lin
- Department of Pathology, University of Washington, Seattle, WA 98195, USA
| | - Winston C Lo
- Molecular and Cellular Biology Program, University of Washington, Seattle, WA 98195, USA
| | - Dan Lockshon
- Buck Institute for Research on Aging, 8001 Redwood Boulevard, Novato, CA 94945, USA
| | - Hillary A Miller
- Department of Pathology, University of Washington, Seattle, WA 98195, USA
| | - Richard M Moller
- Department of Biochemistry, University of Washington, Seattle, WA 98195, USA
| | - Brian Muller
- Molecular and Cellular Biology Program, University of Washington, Seattle, WA 98195, USA
| | - Jonathan Oakes
- Molecular and Cellular Biology Program, University of Washington, Seattle, WA 98195, USA
| | - Diana N Pak
- Department of Biochemistry, University of Washington, Seattle, WA 98195, USA
| | - Zhao Jun Peng
- Molecular and Cellular Biology Program, University of Washington, Seattle, WA 98195, USA
| | - Kim M Pham
- Department of Biochemistry, University of Washington, Seattle, WA 98195, USA
| | - Tom G Pollard
- Molecular and Cellular Biology Program, University of Washington, Seattle, WA 98195, USA
| | - Prarthana Pradeep
- Molecular and Cellular Biology Program, University of Washington, Seattle, WA 98195, USA
| | - Dillon Pruett
- Molecular and Cellular Biology Program, University of Washington, Seattle, WA 98195, USA
| | - Dilreet Rai
- Molecular and Cellular Biology Program, University of Washington, Seattle, WA 98195, USA
| | - Brett Robison
- Buck Institute for Research on Aging, 8001 Redwood Boulevard, Novato, CA 94945, USA
| | - Ariana A Rodriguez
- Buck Institute for Research on Aging, 8001 Redwood Boulevard, Novato, CA 94945, USA
| | - Bopharoth Ros
- Molecular and Cellular Biology Program, University of Washington, Seattle, WA 98195, USA
| | - Michael Sage
- Molecular and Cellular Biology Program, University of Washington, Seattle, WA 98195, USA
| | - Manpreet K Singh
- Molecular and Cellular Biology Program, University of Washington, Seattle, WA 98195, USA
| | - Erica D Smith
- Department of Biochemistry, University of Washington, Seattle, WA 98195, USA
| | - Katie Snead
- Molecular and Cellular Biology Program, University of Washington, Seattle, WA 98195, USA
| | - Amrita Solanky
- Molecular and Cellular Biology Program, University of Washington, Seattle, WA 98195, USA
| | - Benjamin L Spector
- Molecular and Cellular Biology Program, University of Washington, Seattle, WA 98195, USA
| | - Kristan K Steffen
- Department of Pathology, University of Washington, Seattle, WA 98195, USA
| | - Bie Nga Tchao
- Department of Pathology, University of Washington, Seattle, WA 98195, USA
| | - Marc K Ting
- Buck Institute for Research on Aging, 8001 Redwood Boulevard, Novato, CA 94945, USA
| | - Helen Vander Wende
- Department of Pathology, University of Washington, Seattle, WA 98195, USA
| | - Dennis Wang
- Molecular and Cellular Biology Program, University of Washington, Seattle, WA 98195, USA
| | - K Linnea Welton
- Department of Pathology, University of Washington, Seattle, WA 98195, USA
| | - Eric A Westman
- Department of Pathology, University of Washington, Seattle, WA 98195, USA
| | - Rachel B Brem
- Buck Institute for Research on Aging, 8001 Redwood Boulevard, Novato, CA 94945, USA
| | - Xin-Guang Liu
- Aging Research Institute, Guangdong Medical College, Dongguan 523808, Guangdong, P.R. China
| | - Yousin Suh
- Aging Research Institute, Guangdong Medical College, Dongguan 523808, Guangdong, P.R. China; Department of Genetics, Albert Einstein College of Medicine, New York, NY 10461, USA
| | - Zhongjun Zhou
- Department of Biochemistry, University of Hong Kong, Hong Kong
| | - Matt Kaeberlein
- Department of Pathology, University of Washington, Seattle, WA 98195, USA.
| | - Brian K Kennedy
- Buck Institute for Research on Aging, 8001 Redwood Boulevard, Novato, CA 94945, USA; Department of Biochemistry, University of Washington, Seattle, WA 98195, USA.
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Middleton KK, Muller B, Araujo PH, Fujimaki Y, Rabuck SJ, Irrgang JJ, Tashman S, Fu FH. Is the native ACL insertion site "completely restored" using an individualized approach to single-bundle ACL-R? Knee Surg Sports Traumatol Arthrosc 2015; 23:2145-2150. [PMID: 24825174 DOI: 10.1007/s00167-014-3043-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [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] [Received: 02/09/2014] [Accepted: 04/25/2014] [Indexed: 11/30/2022]
Abstract
PURPOSE The goal of individualized anatomic anterior cruciate ligament reconstruction (ACL-R) is to reproduce each patient's native insertion site as closely as possible. The amount of the native insertion site that is recreated by the tunnel aperture area is currently unknown, as are the implications of the degree of coverage. As such, the goals of this study are to determine whether individualized anatomic ACL-R techniques can maximally fill the native insertion site and to attempt to establish a crude measure to evaluate the percentage of reconstructed area as a first step towards elucidating the implications of complete footprint restoration. METHODS This is a prospective pilot study of 45 patients who underwent primary single-bundle anatomic ACL-R from May 2011 to April 2012. Length and width of the native insertion site were measured intraoperatively. Using published guidelines, reconstruction technique and graft choice were determined to maximize the percentage of reconstructed area. Native femoral and tibial insertion site area and femoral tunnel aperture area were calculated using the formula for area of an ellipse. On the tibial side, tunnel aperture area was calculated with respect to drill diameter and drill guide angle. Percentage of reconstructed area was calculated by dividing total tunnel aperture area by the native insertion site area. RESULTS The mean areas for the native femoral and tibial insertion sites were 83 ± 20 and 125 ± 20 mm(2), respectively. The mean tunnel aperture area for the femoral side was 65 ± 17, and 86 ± 17 mm(2) for the tibial tunnel aperture area. On average, percentage of reconstructed area was 79 ± 13 % for the femoral side, and 70 ± 12 % for the tibial side. CONCLUSION Anatomic ACL-R does not restore the native insertion site in its entirety. Percentage of reconstructed area serves as a rudimentary tool for evaluating the degree of native insertion site coverage using current individualized anatomic techniques and provides a starting point from which to evaluate the clinical significance of complete footprint restoration. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- K K Middleton
- Department of Orthopaedic Surgery, University of Pittsburgh School of Medicine, Kaufman Medical Building, Suite 1011, 3941 Fifth Avenue, Pittsburgh, PA, 15203, USA
| | - B Muller
- Department of Orthopaedic Surgery, University of Pittsburgh School of Medicine, Kaufman Medical Building, Suite 1011, 3941 Fifth Avenue, Pittsburgh, PA, 15203, USA.,Department of Orthopaedic Surgery, Orthopaedic Research Center Amsterdam, Academic Medical Center, University of Amsterdam, Meibergdreef 9, Amsterdam, AZ, 1105, The Netherlands
| | - P H Araujo
- Department of Orthopaedic Surgery, University of Pittsburgh School of Medicine, Kaufman Medical Building, Suite 1011, 3941 Fifth Avenue, Pittsburgh, PA, 15203, USA.,Department of Biomechanics, Medicine and Rehabilitation of Locomotor System - Ribeirao Preto Medical School, São Paulo University, Av. Bandeirantes, 3900 - Monte Alegre, 14049-900, Ribeirão Prêto, SP, Brazil
| | - Y Fujimaki
- Department of Orthopaedic Surgery, University of Pittsburgh School of Medicine, Kaufman Medical Building, Suite 1011, 3941 Fifth Avenue, Pittsburgh, PA, 15203, USA.,Department of Orthopaedic Surgery, Showa University School of Medicine, 1-5-8 Hatanodai, Shinagawa-ku, 142-8666, Japan
| | - S J Rabuck
- Department of Orthopaedic Surgery, University of Pittsburgh School of Medicine, Kaufman Medical Building, Suite 1011, 3941 Fifth Avenue, Pittsburgh, PA, 15203, USA
| | - J J Irrgang
- Department of Orthopaedic Surgery, University of Pittsburgh School of Medicine, Kaufman Medical Building, Suite 1011, 3941 Fifth Avenue, Pittsburgh, PA, 15203, USA
| | - S Tashman
- Department of Orthopaedic Surgery, University of Pittsburgh School of Medicine, Kaufman Medical Building, Suite 1011, 3941 Fifth Avenue, Pittsburgh, PA, 15203, USA
| | - F H Fu
- Department of Orthopaedic Surgery, University of Pittsburgh School of Medicine, Kaufman Medical Building, Suite 1011, 3941 Fifth Avenue, Pittsburgh, PA, 15203, USA.
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Coste F, Toussaint C, Dubois M, Courtois A, Guibert C, Marthan R, Savineau J, Muller B, Freund-Michel V. Reversal of experimental severe pulmonary hypertension by NGF inhibition. Rev Mal Respir 2015. [DOI: 10.1016/j.rmr.2015.02.053] [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: 12/01/2022]
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Muller B, Reinartz SM, van Egmond D, de Groot EJJ, Fokkens WJ, van Drunen CM. Mono-allergic and poly-allergic rhinitis patients have comparable numbers of mucosal Foxp3+CD4+ T lymphocytes. Rhinology 2014; 52:260-6. [PMID: 25271532 DOI: 10.4193/rhino13.223] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND We previously found that allergic rhinitis patients with an isolated pollen sensitization responded more strongly to a nasal provocation with grass pollen (GP) than patients who had an additional house dust mite (HDM) sensitization. To elucidate this phenomenon, we investigated the dynamics of Foxp3+CD4+ T lymphocytes in allergic rhinitis patients with distinct allergen sensitizations. METHODS Three groups of allergic rhinitis patients with skin prick test confirmed allergic sensitizations were investigated and compared to 14 healthy controls: 14 subjects with an isolated grass pollen sensitization (Mono-GP); 9 subjects with isolated housedust mite sensitization (Mono-HDM); 29 subjects with grass pollen and house dust mite sensitization (poly-sensitized). Subjects in the Mono-GP group were challenged with grass pollen extract, subjects in the Mono-HDM group were challenged with house dust mite extract, subjects in the poly-sensitized group and the healthy controls were randomly challenged with either grass pollen or house dust mite. Nasal biopsies were taken before and after nasal provocation. We compared the distribution of FoxP3+CD4+ cells in nasal biopsies before and after nasal provocation using immunohistochemistry. RESULTS There was no difference in the number of FoxP3+CD4+ cells between healthy and the three allergic groups at baseline.Nasal provocation did result in an increase in eosinophils in the three allergic groups, but did not result in a change in the number of FoxP3+CD4+ cells in any of the groups or induced differences between any of the groups. CONCLUSION Clinical differences in the response between mono-GP and multiple-sensitized allergic individuals are not related to differences in the number of regulatory T cells in the nasal mucosa.
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Heydarchi B, Center R, Ramarathinam S, Gonelli C, Muller B, Mackenzie C, Cuthbertson J, Kramski M, Purcell DF. Chimeric Bovine-V-region and Human-C-region mAbs with Long and Extensively Mutated CDHR3 Domains Bind HIV-1 Env gp140 Trimers, but Not gp120 Monomer. AIDS Res Hum Retroviruses 2014. [DOI: 10.1089/aid.2014.5234b.abstract] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Behnaz Heydarchi
- University of Melbourne, Microbiology and Immunology, Melbourne, Australia
| | - Robert Center
- University of Melbourne, Microbiology and Immunology, Melbourne, Australia
| | - Sri Ramarathinam
- Monash University, Biochemistry and Molecular Biology, Clayton, Australia
| | | | - Brian Muller
- University of Melbourne, Microbiology and Immunology, Melbourne, Australia
- Reef Pharmaceutical, Melbourne, Australia
| | - Charlene Mackenzie
- University of Melbourne, Microbiology and Immunology, Melbourne, Australia
| | - Jack Cuthbertson
- University of Melbourne, Microbiology and Immunology, Melbourne, Australia
| | - Marit Kramski
- University of Melbourne, Microbiology and Immunology, Melbourne, Australia
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Coste F, Toussaint C, Dubois M, Courtois A, Guibert C, Marthan R, Savineau JP, Muller B, Freund-Michel V. Role of the nerve growth factor NGF in severe pulmonary hypertension. Rev Mal Respir 2014. [DOI: 10.1016/j.rmr.2014.04.036] [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: 10/24/2022]
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Hofbauer M, Muller B, Murawski CD, van Eck CF, Fu FH. The concept of individualized anatomic anterior cruciate ligament (ACL) reconstruction. Knee Surg Sports Traumatol Arthrosc 2014; 22:979-86. [PMID: 23740328 DOI: 10.1007/s00167-013-2562-4] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2012] [Accepted: 05/29/2013] [Indexed: 01/20/2023]
Abstract
PURPOSE To describe the concept of individualized anatomic anterior cruciate ligament (ACL) reconstruction. METHODS The PubMed/Medline database was searched using keywords pertaining to ACL reconstruction. Relevant articles were reviewed in order to summarize important concepts of individualized surgery in ACL reconstruction. Surgical experiences with case examples are also highlighted. RESULTS Individualized ACL surgery allows for the customization of surgery to each individual patient. Accounting for graft selection and other characteristics such as anatomy, lifestyle and activity preferences may provide the patient with the best potential for a successful outcome. The surgeon should be comfortable with a variety of graft harvests and surgical techniques when practicing individualized surgery. CONCLUSION Individualized anatomic ACL reconstruction is founded on the objective evaluation of functional anatomy and individual characteristics, thereby restoring the ACL as closely as possible to the native anatomy and function. The adoption and subsequent use of individualized surgery may facilitate improved clinical as well as objective outcomes, particularly in the long term. LEVEL OF EVIDENCE V.
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Affiliation(s)
- M Hofbauer
- Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, 3471 Fifth Avenue Kaufman Building, Suite 1011, Pittsburgh, PA, 15213, USA
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Muller B, Reinartz S, van Egmond D, de Groot E, Fokkens W, van Drunen C. Mono-allergic and poly-allergic rhinitis patients have comparable numbers of mucosal Foxp3+CD4+ T lymphocytes. Rhinology 2014. [DOI: 10.4193/rhin13.223] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Ohresser P, Otero E, Choueikani F, Chen K, Stanescu S, Deschamps F, Moreno T, Polack F, Lagarde B, Daguerre JP, Marteau F, Scheurer F, Joly L, Kappler JP, Muller B, Bunau O, Sainctavit P. DEIMOS: a beamline dedicated to dichroism measurements in the 350-2500 eV energy range. Rev Sci Instrum 2014; 85:013106. [PMID: 24517744 DOI: 10.1063/1.4861191] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The DEIMOS (Dichroism Experimental Installation for Magneto-Optical Spectroscopy) beamline was part of the second phase of the beamline development at French Synchrotron SOLEIL (Source Optimisée de Lumière à Energie Intermédiaire du LURE) and opened to users in March 2011. It delivers polarized soft x-rays to perform x-ray absorption spectroscopy, x-ray magnetic circular dichroism, and x-ray linear dichroism in the energy range 350-2500 eV. The beamline has been optimized for stability and reproducibility in terms of photon flux and photon energy. The main end-station consists in a cryo-magnet with 2 split coils providing a 7 T magnetic field along the beam or 2 T perpendicular to the beam with a controllable temperature on the sample from 370 K down to 1.5 K.
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Affiliation(s)
- P Ohresser
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin - BP 48, 91192 Gif-sur-Yvette, France
| | - E Otero
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin - BP 48, 91192 Gif-sur-Yvette, France
| | - F Choueikani
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin - BP 48, 91192 Gif-sur-Yvette, France
| | - K Chen
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin - BP 48, 91192 Gif-sur-Yvette, France
| | - S Stanescu
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin - BP 48, 91192 Gif-sur-Yvette, France
| | - F Deschamps
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin - BP 48, 91192 Gif-sur-Yvette, France
| | - T Moreno
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin - BP 48, 91192 Gif-sur-Yvette, France
| | - F Polack
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin - BP 48, 91192 Gif-sur-Yvette, France
| | - B Lagarde
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin - BP 48, 91192 Gif-sur-Yvette, France
| | - J-P Daguerre
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin - BP 48, 91192 Gif-sur-Yvette, France
| | - F Marteau
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin - BP 48, 91192 Gif-sur-Yvette, France
| | - F Scheurer
- Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504 UdS-CNRS, 67034 Strasbourg Cedex 2, France
| | - L Joly
- Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504 UdS-CNRS, 67034 Strasbourg Cedex 2, France
| | - J-P Kappler
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin - BP 48, 91192 Gif-sur-Yvette, France
| | - B Muller
- Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504 UdS-CNRS, 67034 Strasbourg Cedex 2, France
| | - O Bunau
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin - BP 48, 91192 Gif-sur-Yvette, France
| | - Ph Sainctavit
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin - BP 48, 91192 Gif-sur-Yvette, France
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Ohresser P, Otero E, Choueikani F, Stanescu S, Deschamps F, Ibis L, Moreno T, Polack F, Lagarde B, Marteau F, Scheurer F, Joly L, Kappler JP, Muller B, Sainctavit P. Polarization characterization on the DEIMOS beamline using dichroism measurements. ACTA ACUST UNITED AC 2013. [DOI: 10.1088/1742-6596/425/21/212007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Hofbauer M, Muller B, Murawski CD, Karlsson J, Fu FH. Innovation in orthopaedic surgery as it relates to evidence-based practice. Knee Surg Sports Traumatol Arthrosc 2013; 21:511-4. [PMID: 23287893 DOI: 10.1007/s00167-012-2360-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Delaney JR, Ahmed U, Chou A, Sim S, Carr D, Murakami CJ, Schleit J, Sutphin GL, An EH, Castanza A, Fletcher M, Higgins S, Jelic M, Klum S, Muller B, Peng ZJ, Rai D, Ros V, Singh M, Wende HV, Kennedy BK, Kaeberlein M. Stress profiling of longevity mutants identifies Afg3 as a mitochondrial determinant of cytoplasmic mRNA translation and aging. Aging Cell 2013; 12:156-66. [PMID: 23167605 DOI: 10.1111/acel.12032] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/06/2012] [Indexed: 01/05/2023] Open
Abstract
Although environmental stress likely plays a significant role in promoting aging, the relationship remains poorly understood. To characterize this interaction in a more comprehensive manner, we examined the stress response profiles for 46 long-lived yeast mutant strains across four different stress conditions (oxidative, ER, DNA damage, and thermal), grouping genes based on their associated stress response profiles. Unexpectedly, cells lacking the mitochondrial AAA protease gene AFG3 clustered strongly with long-lived strains lacking cytosolic ribosomal proteins of the large subunit. Similar to these ribosomal protein mutants, afg3Δ cells show reduced cytoplasmic mRNA translation, enhanced resistance to tunicamycin that is independent of the ER unfolded protein response, and Sir2-independent but Gcn4-dependent lifespan extension. These data demonstrate an unexpected link between a mitochondrial protease, cytoplasmic mRNA translation, and aging.
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Affiliation(s)
| | - Umema Ahmed
- Department of Pathology; University of Washington; Seattle; WA; USA
| | - Annie Chou
- Department of Pathology; University of Washington; Seattle; WA; USA
| | - Sylvia Sim
- Department of Pathology; University of Washington; Seattle; WA; USA
| | - Daniel Carr
- Department of Pathology; University of Washington; Seattle; WA; USA
| | | | - Jennifer Schleit
- Department of Pathology; University of Washington; Seattle; WA; USA
| | | | - Elroy H. An
- Department of Pathology; University of Washington; Seattle; WA; USA
| | - Anthony Castanza
- Department of Pathology; University of Washington; Seattle; WA; USA
| | - Marissa Fletcher
- Department of Pathology; University of Washington; Seattle; WA; USA
| | - Sean Higgins
- Department of Pathology; University of Washington; Seattle; WA; USA
| | - Monika Jelic
- Department of Pathology; University of Washington; Seattle; WA; USA
| | - Shannon Klum
- Department of Pathology; University of Washington; Seattle; WA; USA
| | - Brian Muller
- Department of Pathology; University of Washington; Seattle; WA; USA
| | - Zhao J. Peng
- Department of Pathology; University of Washington; Seattle; WA; USA
| | - Dilreet Rai
- Department of Pathology; University of Washington; Seattle; WA; USA
| | - Vanessa Ros
- Department of Pathology; University of Washington; Seattle; WA; USA
| | - Minnie Singh
- Department of Pathology; University of Washington; Seattle; WA; USA
| | - Helen V. Wende
- Department of Pathology; University of Washington; Seattle; WA; USA
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Mizrahi M, Shabat Y, Ben Ya'acov A, Lalazar G, Adar T, Wong V, Muller B, Rawlin G, Ilan Y. Alleviation of insulin resistance and liver damage by oral administration of Imm124-E is mediated by increased Tregs and associated with increased serum GLP-1 and adiponectin: results of a phase I/II clinical trial in NASH. J Inflamm Res 2012; 5:141-50. [PMID: 23293533 PMCID: PMC3534391 DOI: 10.2147/jir.s35227] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [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] [Indexed: 01/01/2023] Open
Abstract
Background Nonalcoholic steatohepatitis (NASH) is considered to be part of the nonalcoholic fatty liver disorders and its incidence is increasing. Imm124-E (Immuron Ltd, Melbourne, Australia), containing hyperimmune bovine colostrum, has been shown to exert an immunomodulatory effect and to alleviate target organ damage in animal models of NASH. The aim of our study was to determine the safety and efficacy of oral administration of Imm124-E to patients with insulin resistance and NASH. Methods In an open-label trial, ten patients with biopsy-proven NASH and insulin resistance were orally treated with Imm124-E for 30 days. Results Oral administration of Imm124-E was safe, and no side effects were noted. Alleviation of insulin resistance was reflected by significantly improved hemoglobin A1c (HbA1c) values in all ten treated patients. For between five and eight responders, the following effects were noted: a decrease in fasting glucose levels; improved oral glucose tolerance test (OGGT) and homeostatic model assessment insulin resistance (HOMA) scores; and alleviation in lipid profile. These effects were accompanied by increased serum levels of glucagon-like peptide 1 (GLP-1), adiponectin and T regulatory cells. Conclusion Hyperimmune colostrum alleviates NASH.
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Affiliation(s)
- Meir Mizrahi
- Liver Unit, Hebrew University-Hadassah Medical Center, Jerusalem, Israel
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Skeie GO, Muller B, Haugarvoll K, Larsen JP, Tysnes OB. Parkinson disease: associated disorders in the Norwegian population based incident ParkWest study. Parkinsonism Relat Disord 2012; 19:53-5. [PMID: 22841686 DOI: 10.1016/j.parkreldis.2012.07.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [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] [Received: 02/14/2012] [Revised: 06/21/2012] [Accepted: 07/06/2012] [Indexed: 11/16/2022]
Abstract
Parkinson's disease (PD) may be associated with a number of different diseases due to common risk factors or overlapping symptomatology. We have asked for possible associated disorders in a Norwegian population of incident PD patients and controls, the Norwegian ParkWest study. The patients were diagnosed according to the Gelb criteria. 212 incident PD patients and 175 age and gender matched controls were included. PD patients and controls were asked for information on earlier medical history and family history. PD patients had a higher frequency of self-reported symptoms of depression (p = 0.003) and anxiety disorders (p = 0.004) before baseline. They tended to have a higher frequency of diabetes (p = 0.09) and had a higher frequency of prior stroke or TIA (p = 0.004).
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Affiliation(s)
- G O Skeie
- Department of Neurology, Haukeland University Hospital, 5021 Bergen, Norway.
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Bromhead D, Clarke S, Hoyle S, Muller B, Sharples P, Harley S. Identification of factors influencing shark catch and mortality in the Marshall Islands tuna longline fishery and management implications. J Fish Biol 2012; 80:1870-1894. [PMID: 22497410 DOI: 10.1111/j.1095-8649.2012.03238.x] [Citation(s) in RCA: 4] [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] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Recent average annual catches of sharks by tuna longline vessels fishing in the Republic of the Marshall Islands (RMI) are estimated to be between 1583 and 2274 t. Although 22 shark species have been recorded by the observer programme for this fishery, 80% of the annual catch comprises only five species: blue shark Prionace glauca, silky shark Carcharhinus falciformis, bigeye thresher shark Alopias superciliosus, pelagic thresher shark Alopias pelagicus and oceanic whitetip shark Carcharhinus longimanus. Wire leaders (i.e. branch lines or traces) were also used by nearly all observed vessels. Generalized additive model (GAM)-based analyses of catch rates indicated that P. glauca and A. superciliosus are caught in higher numbers when vessels fish in relatively cooler waters, at night, close to the full moon, when the 27° C thermocline is close to the surface and during El Niño conditions. In contrast, C. falciformis, A. pelagicus and C. longimanus are caught in higher numbers when shark lines are used (all three species) or hooks are set at a shallow depth (A. pelagicus and C. longimanus and, also, P. glauca). These findings are generally consistent with current knowledge of these species' habitat preferences, movement and distribution. The results of these analyses were combined with information pertaining to shark condition and fate upon capture to compare the likely effectiveness of a range of potential measures for reducing shark mortality in the longline fishery. Of the options considered, the most effective would be to combine measures that reduce the catch rate (e.g. restrictions on the use of wire leaders, shark baits and shark lines) with measures that increase survival rates after post-capture release (e.g. finning bans).
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Affiliation(s)
- D Bromhead
- Oceanic Fisheries Programme, Secretariat of the Pacific Community, BP D5, Noumea 98848, New Caledonia.
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Adar T, Ben Ya'acov A, Lalazar G, Lichtenstein Y, Nahman D, Mizrahi M, Wong V, Muller B, Rawlin G, Ilan Y. Oral administration of immunoglobulin G-enhanced colostrum alleviates insulin resistance and liver injury and is associated with alterations in natural killer T cells. Clin Exp Immunol 2012; 167:252-60. [PMID: 22236001 DOI: 10.1111/j.1365-2249.2011.04511.x] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Insulin resistance and metabolic syndrome are chronic inflammatory conditions that lead to hepatic injury and non-alcoholic steatohepatitis (NASH). Bovine colostrum has therapeutic effects in a variety of chronic infections. However its effectiveness in NASH was never studied. Natural killer T (NKT) cells have been shown to be associated with some of the pathological and metabolic abnormalities accompanying NASH in leptin-deficient (ob/ob) mice. In the present study, we used hyperimmune bovine colostrum to treat hepatic injury and insulin resistance and we also assessed the effects on NKT cells. We used ob/ob mice that were fed for 6 weeks with either 0·1 mg bovine colostrum prepared from non-immunized cows, 0·1 mg hyperimmune colostrum raised against a bacterial lipopolysaccharide (LPS) extract or 0·001, 0·1 or 1 mg of immunoglobulin (Ig)G purified from hyperimmune colostrum (IgG-LPS). NKT cells were phenotyped by flow cytometry, and hepatic injury and insulin resistance were assessed by measuring fasting glucose levels, glucose tolerance tests and liver enzymes. Fat accumulation was measured in the liver and plasma. Oral administration of hyperimmune colostrums decreased alanine aminotransferase (ALT) serum levels and serum triglycerides compared to controls. Glucose intolerance was also improved by the hyperimmune colostrum preparations. These results were accompanied by a decrease in serum tumour necrosis factor (TNF)-α levels following oral treatment with 0·1 or 1 mg of IgG-LPS. The beneficial effects of hyperimmune colostrums were associated with an increase in the number of splenic NKT cells. These data suggest that oral administration of hyperimmune colostrum preparations can alleviate chronic inflammation, liver injury and insulin resistance associated with NASH.
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Affiliation(s)
- T Adar
- Liver Unit, Department of Medicine, Hebrew University-Hadassah Medical Center, Jerusalem, Israel
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Schwappach DLB, Frank O, Koppenberg J, Muller B, Wasserfallen JB. Patients' and healthcare workers' perceptions of a patient safety advisory. Int J Qual Health Care 2011; 23:713-20. [DOI: 10.1093/intqhc/mzr062] [Citation(s) in RCA: 19] [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] [Indexed: 11/13/2022] Open
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Sarr M, Sar FB, Gueye L, Kane MO, Wele A, Diallo AS, Schini-Kerth V, Muller B. The vascular endothelium masks the persistent inhibition of rat thoracic arterial tone induced by S-nitrosoglutathione. Cardiovasc J Afr 2011; 22:7-13. [PMID: 21298199 PMCID: PMC3734762 DOI: 10.5830/cvja-2010-008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2009] [Accepted: 03/10/2010] [Indexed: 02/04/2023] Open
Abstract
AIM In endothelium-denuded arteries, the nitric oxide (NO) donor S-nitrosoglutathione (GSNO) induced a persistent hypo-reactivity to vasoconstrictors, and low-molecular weight thiols such as N-acetyl cysteine (NAC) produced a relaxant effect. These effects were attributed to the formation of vascular NO stores. In arteries with a functional endothelium, such long-lasting effects on arterial tone have not been well characterised. In this study, we proposed to examine the possibility of storing exogenous NO when the vascular endothelium is still able to produce its own NO. METHODS For this purpose, changes in isometric tension of isolated arteries were assessed in organ chambers, and nitrosothiol formation was characterised by confocal microscopy. RESULTS In rat aortic rings with endothelium pre-exposed to GSNO, the contractile response to norepinephrine (NE) was not attenuated in comparison with control rings, but NAC induced a relaxant effect. However, an attenuation of the response to NE was observed in GSNO-exposed, intact aortic rings after inhibition of NO synthase by N(ω)-nitro-L-arginine methylester (L-AME) or in GSNO-denuded rings. The relaxing effects of NAC were due to the mobilisation of NO from nitrosothiols after nitrosylation of protein SH residues. Moreover, the hypo-reactivity to NE and the relaxant effect of NAC were abolished by 1H-[1,2,4] oxadiazolo(4,3-a)quinoxalin-1-one (ODQ), an inhibitor of soluble guanylyl cyclase, and partially by the K+-sensitive channel inhibitor tetra-ethyl-ammonium (TEA). CONCLUSION These data show that endothelium-derived NO masked the persistent effect of GSNO in rat thoracic aorta. However, the ability of GSNO to form releasable NO stores without altering the vascular tone can be particularly useful in preventing endothelial dysfunction in which NO formation decreases.
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Affiliation(s)
- M Sarr
- Laboratoire de Physiologie Pharmaceutique, Faculté de Médecine et de Pharmacie, Dakar, Sénégal.
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Lagomarsino S, Fonzo SD, Jark W, Muller B, Cedola A, Pelka G. Interference Effects In X-Ray Specular Reflectivity from Thin Films. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-382-381] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTA strong resonance effect in the specular reflectivity of a C layer deposited on a Ni surface has been measured. The e.m. field intensity distribution has been monitored by measuring the fluorescence intensity of an ultra-thin Ti layer placed in the C film. The reflected intensity and the fluorescence yield of Ti and Ar (this last trapped in the film because of the deposition by sputtering) have been measured in different samples with a different location of the Ti layer. The results show that with this method a nondestructive, accurate determination of the Ti position can be achieved with a relative accuracy of 10−2
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Niedhammer I, David S, Degioanni S, Drummond A, Philip P, Acquarone D, Aicardi F, André-Mazeaud P, Arsento M, Astier R, Baille H, Bajon-Thery F, Barre E, Basire C, Battu JL, Baudry S, Beatini C, Beaud'huin N, Becker C, Bellezza D, Beque C, Bernstein O, Beyssier C, Blanc-Cascio F, Blanchet N, Blondel C, Boisselot R, Bordes-Dupuy G, Borrelly N, Bouhnik D, Boulanger MF, Boulard J, Bourreau P, Bourret D, Boustière AM, Breton C, Bugeon G, Buono-Michel M, Canonne JF, Capella D, Cavin-Rey M, Cervoni C, Charreton D, Charrier D, Chauvin MA, Chazal B, Cougnot C, Cuvelier G, Dalivoust G, Daumas R, Debaille A, De Bretteville L, Delaforge G, Delchambre A, Domeny L, Donati Y, Ducord-Chapelet J, Duran C, Durand-Bruguerolle D, Fabre D, Faivre A, Falleri R, Ferrando G, Ferrari-Galano J, Flutet M, Fouché JP, Fournier F, Freyder E, Galy M, Garcia A, Gazazian G, Gérard C, Girard F, Giuge M, Goyer C, Gravier C, Guyomard A, Hacquin MC, Halimi E, Ibagnes T, Icart P, Jacquin MC, Jaubert B, Joret JP, Julien JP, Kacel M, Kesmedjian E, Lacroix P, Lafon-Borelli M, Lallai S, Laudicina J, Leclercq X, Ledieu S, Leroy J, Leroyer L, Loesche F, Londi D, Longueville JM, Lotte MC, Louvain S, Lozé M, Maculet-Simon M, Magallon G, Marcelot V, Mareel MC, Martin P, Masse AM, Méric M, Milliet C, Mokhtari R, Monville AM, Muller B, Obadia G, Pelser M, Peres L, Perez E, Peyron M, Peyronnin F, Postel S, Presseq P, Pyronnet E, Quinsat C, Raulot-Lapointe H, Rigaud P, Robert F, Robert O, Roger K, Roussel A, Roux JP, Rubini-Remigy D, Sabaté N, Saccomano-Pertus C, Salengro B, Salengro-Trouillez P, Samsom E, Sendra-Gille L, Seyrig C, Stoll G, Tarpinian N, Tavernier M, Tempesta S, Terracol H, Torresani F, Triglia MF, Vandomme V, Vieillard F, Vilmot K, Vital N. Workplace bullying and psychotropic drug use: the mediating role of physical and mental health status. ACTA ACUST UNITED AC 2010; 55:152-63. [PMID: 21177264 DOI: 10.1093/annhyg/meq086] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVES The association between workplace bullying and psychotropic drug use is not well established. This study was aimed at exploring the association between workplace bullying, and its characteristics, and psychotropic drug use and studying the mediating role of physical and mental health. METHODS The study population consisted of a random sample of 3132 men and 4562 women of the working population in the south-east of France. Workplace bullying, evaluated using the validated instrument elaborated by Leymann, and psychotropic drug use, as well as covariates, were measured using a self-administered questionnaire. Covariates included age, marital status, presence of children, education, occupation, working hours, night work, physico-chemical exposures at work, self-reported health, and depressive symptoms. Statistical analysis was performed using logistic regression analysis and was carried out separately for men and women. RESULTS Workplace bullying was strongly associated with psychotropic drug use. Past exposure to bullying increased the risk for this use. The more frequent and the longer the exposure to bullying, the stronger the association with psychotropic drug use. Observing bullying on someone else at the workplace was associated with psychotropic drug use. Adjustment for covariates did not modify the results. Additional adjustment for self-reported health and depressive symptoms reduced the magnitude of the associations, especially for men. CONCLUSIONS The association between bullying and psychotropic drug use was found to be significant and strong and was partially mediated by physical and mental health.
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Affiliation(s)
- Isabelle Niedhammer
- INSERM, U1018, CESP Centre for research in epidemiology and population health, Epidemiology of occupational and social determinants of health team, Hôpital Paul Brousse, 94807 Villejuif, France.
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Ng WC, Wong V, Muller B, Rawlin G, Brown LE. Prevention and treatment of influenza with hyperimmune bovine colostrum antibody. PLoS One 2010; 5:e13622. [PMID: 21049034 PMCID: PMC2964324 DOI: 10.1371/journal.pone.0013622] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [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: 05/03/2010] [Accepted: 10/02/2010] [Indexed: 12/22/2022] Open
Abstract
Background Despite the availability of specific vaccines and antiviral drugs, influenza continues to impose a heavy toll on human health worldwide. Passive transfer of specific antibody (Ab) may provide a useful means of preventing or treating disease in unvaccinated individuals or those failing to adequately seroconvert, especially now that resistance to antiviral drugs is on the rise. However, preparation of appropriate Ab in large scale, quickly and on a yearly basis is viewed as a significant logistical hurdle for this approach to control seasonal influenza. Methodology/Principal Findings In this study, bovine colostrum, which contains approximately 500 g of IgG per milking per animal, has been investigated as a source of polyclonal antibody for delivery to the respiratory tract. IgG and F(ab')2 were purified from the hyperimmune colostrum of cows vaccinated with influenza A/Puerto Rico/8/34 (PR8) vaccine and were shown to have high hemagglutination-inhibitory and virus-neutralizing titers. In BALB/c mice, a single administration of either IgG or F(ab')2 could prevent the establishment of infection with a sublethal dose of PR8 virus when given as early as 7 days prior to exposure to virus. Pre-treated mice also survived an otherwise lethal dose of virus, the IgG- but not the F(ab')2-treated mice showing no weight loss. Successful reduction of established infection with this highly virulent virus was also observed with a single treatment 24 hr after virus exposure. Conclusions/Significance These data suggest that a novel and commercially-scalable technique for preparing Ab from hyperimmune bovine colostrum could allow production of a valuable substitute for antiviral drugs to control influenza with the advantage of eliminating the need for daily administration.
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Affiliation(s)
- Wy Ching Ng
- Department of Microbiology and Immunology, The University of Melbourne, Parkville, Victoria, Australia
| | - Victor Wong
- Immuron Limited, North Melbourne, Victoria, Australia
| | - Brian Muller
- Immuron Limited, North Melbourne, Victoria, Australia
| | - Grant Rawlin
- Immuron Limited, North Melbourne, Victoria, Australia
| | - Lorena E. Brown
- Department of Microbiology and Immunology, The University of Melbourne, Parkville, Victoria, Australia
- * E-mail:
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Richards AJ, Muller B, Shotwell M, Cowart LA, Rohrer B, Lu X. Assessing the functional coherence of gene sets with metrics based on the Gene Ontology graph. ACTA ACUST UNITED AC 2010; 26:i79-87. [PMID: 20529941 PMCID: PMC2881388 DOI: 10.1093/bioinformatics/btq203] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [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] [Indexed: 11/14/2022]
Abstract
MOTIVATION The results of initial analyses for many high-throughput technologies commonly take the form of gene or protein sets, and one of the ensuing tasks is to evaluate the functional coherence of these sets. The study of gene set function most commonly makes use of controlled vocabulary in the form of ontology annotations. For a given gene set, the statistical significance of observing these annotations or 'enrichment' may be tested using a number of methods. Instead of testing for significance of individual terms, this study is concerned with the task of assessing the global functional coherence of gene sets, for which novel metrics and statistical methods have been devised. RESULTS The metrics of this study are based on the topological properties of graphs comprised of genes and their Gene Ontology annotations. A novel aspect of these methods is that both the enrichment of annotations and the relationships among annotations are considered when determining the significance of functional coherence. We applied our methods to perform analyses on an existing database and on microarray experimental results. Here, we demonstrated that our approach is highly discriminative in terms of differentiating coherent gene sets from random ones and that it provides biologically sensible evaluations in microarray analysis. We further used examples to show the utility of graph visualization as a tool for studying the functional coherence of gene sets. AVAILABILITY The implementation is provided as a freely accessible web application at: http://projects.dbbe.musc.edu/gosteiner. Additionally, the source code written in the Python programming language, is available under the General Public License of the Free Software Foundation. SUPPLEMENTARY INFORMATION Supplementary data are available at Bioinformatics online.
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Affiliation(s)
- Adam J Richards
- Department of Biochemistry and Molecular Biology, Medical University of South Carolina, Charleston, SC 29425, USA
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Franchini M, Monnais E, Seboek D, Radimerski T, Zini E, Kaufmann K, Lutz T, Reusch C, Ackermann M, Muller B, Linscheid P. Insulin resistance and increased lipolysis in bone marrow derived adipocytes stimulated with agonists of Toll-like receptors. Horm Metab Res 2010; 42:703-9. [PMID: 20603780 DOI: 10.1055/s-0030-1261872] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Our objectives were to identify Toll-like receptors (TLRs) in human bone marrow derived adipocytes, to test specific TLR agonists for their ability to induce a proinflammatory response, and to investigate possible metabolic effects after TLR activation, in particular, those associated with insulin resistance and lipolysis. Mesenchymal stem cells were isolated from human bone marrow and differentiated into adipocytes. Total RNA before or after stimulation with agonists specific for TLR was extracted for analysis of expression of TLRs proinflammatory signals and molecules involved in glucose metabolism (IRS-1 and GLUT4). Furthermore, cytokine protein expression was measured from cell lysates. Finally, insulin induced glucose uptake and lipolysis were measured. Human bone marrow-derived adipocytes express TLR1-10. They react to stimulation with specific ligands with expression of inflammatory markers (IL-1beta, IL-6, TNFalpha, IL-8, MCP-1) at the RNA and protein levels. IRS-1 and GLUT4 expression was downregulated after stimulation with the TLR4 and TLR3 specific ligands LPS and poly (I:C), respectively. Insulin-induced glucose uptake was decreased and lipolysis increased. We conclude that adipocytes express TLR 1-10 and react to agonists specific for TLR 1-6. As a consequence proinflammatory cytokine are induced, in particular, IL-6, IL-8, and MCP-1. Since stimulation is followed by decreased insulin-induced glucose uptake and increased lipolysis we conclude that TLRs may be important linking molecules in the generation of insulin resistance in fat tissue.
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Affiliation(s)
- M Franchini
- Institute of Virology, Vetsuisse Faculty, University of Zürich, Zürich, Switzerland.
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Skeie G, Muller B, Haugarvoll K, Larsen J, Tysnes O. Differential effect of environmental risk factors on postural instability gait difficulties and tremor dominant Parkinson's disease. Mov Disord 2010; 25:1847-52. [DOI: 10.1002/mds.23178] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Sonar SS, Schwinge D, Kilic A, Yildirim AO, Conrad ML, Seidler K, Muller B, Renz H, Nockher WA. Nerve growth factor enhances Clara cell proliferation after lung injury. Eur Respir J 2010; 36:105-15. [DOI: 10.1183/09031936.00165508] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Niedhammer I, David S, Degioanni S, Drummond A, Philip P, Acquarone D, Aicardi F, André-Mazeaud P, Arsento M, Astier R, Baille H, Bajon-Thery F, Barre E, Basire C, Battu JL, Baudry S, Beatini C, Beaud'huin N, Becker C, Bellezza D, Beque C, Bernstein O, Beyssier C, Blanc-Cascio F, Blanchet N, Blondel C, Boisselot R, Bordes-Dupuy G, Borrelly N, Bouhnik D, Boulanger MF, Boulard J, Borreau P, Bourret D, Boustière AM, Breton C, Bugeon G, Buono-Michel M, Canonne JF, Capella D, Cavin-Rey M, Cervoni C, Charreton D, Charrier D, Chauvin MA, Chazal B, Cougnot C, Cuvelier G, Dalivoust G, Daumas R, Debaille A, De Bretteville L, Delaforge G, Delchambre A, Domeny L, Donati Y, Ducord-Chapelet J, Duran C, Durand-Bruguerolle D, Fabre D, Faivre A, Falleri R, Ferrando G, Ferrari-Galano J, Flutet M, Fouché JP, Fournier F, Freyder E, Galy M, Garcia A, Gazazian G, Gérard C, Girard F, Giuge M, Goyer C, Gravier C, Guyomard A, Hacquin MC, Halimi E, Ibagnes T, Icart P, Jacquin MC, Jaubert B, Joret JP, Julien JP, Kacel M, Kesmedjian E, Lacroix P, Lafon-Borelli M, Lallai S, Laudicina J, Leclercq X, Ledieu S, Leroy J, Leroyer L, Loesche F, Londi D, Longueville JM, Lotte MC, Louvain S, Lozé M, Maculet-Simon M, Magallon G, Marcelot V, Mareel MC, Martin P, Masse AM, Méric M, Milliet C, Mokhtari R, Monville AM, Muller B, Obadia G, Pelser M, Peres L, Perez E, Peyron M, Peyronnin F, Postel S, Presseq P, Pyronnet E, Quinsat C, Raulot-Lapointe H, Rigaud P, Robert F, Robert O, Roger K, Roussel A, Roux JP, Rubini-Remigy D, Sabate N, Saccomano-Pertus C, Salengro B, Salengro-Trouillez P, Samson E, Sendra-Gille L, Seyrig C, Stoll G, Tarpinian N, Tavernier M, Tempesta S, Terracol H, Torresani F, Triglia MF, Vandomme V, Vieillard F, Vilmot K, Vital N. Workplace bullying and sleep disturbances: findings from a large scale cross-sectional survey in the French working population. Sleep 2009; 32:1211-9. [PMID: 19750926 DOI: 10.1093/sleep/32.9.1211] [Citation(s) in RCA: 95] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
STUDY OBJECTIVES The purpose of this study was to explore the associations between workplace bullying, the characteristics of workplace bullying, and sleep disturbances in a large sample of employees of the French working population. DESIGN Workplace bullying, evaluated using the validated instrument developed by Leymann, and sleep disturbances, as well as covariates, were measured using a self-administered questionnaire. Covariates included age, marital status, presence of children, education, occupation, working hours, night work, physical and chemical exposures at work, self-reported health, and depressive symptoms. Statistical analysis was performed using logistic regression analysis and was carried out separately for men and women. SETTING General working population. PARTICIPANTS The study population consisted of a random sample of 3132 men and 4562 women of the working population in the southeast of France. RESULTS Workplace bullying was strongly associated with sleep disturbances. Past exposure to bullying also increased the risk for this outcome. The more frequent the exposure to bullying, the higher the risk of experiencing sleep disturbances. Observing someone else being bullied in the workplace was also associated with the outcome. Adjustment for covariates did not modify the results. Additional adjustment for self-reported health and depressive symptoms diminished the magnitude of the associations that remained significant. CONCLUSIONS The prevalence of workplace bullying (around 10%) was found to be high in this study as well was the impact of this major job-related stressor on sleep disturbances. Although no conclusion about causality could be drawn from this cross-sectional study, the findings suggest that the contribution of workplace bullying to the burden of sleep disturbances may be substantial.
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