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Gately L, Mesía C, Sepúlveda JM, Del Barco S, Pineda E, Gironés R, Fuster J, Hong W, Dumas M, Gill S, Navarro LM, Herrero A, Dowling A, de Las Peñas R, Vaz MA, Alonso M, Lwin Z, Harrup R, Peralta S, Long A, Perez-Segura P, Ahern E, Garate CO, Wong M, Campbell R, Cuff K, Jennens R, Gallego O, Underhill C, Martinez-Garcia M, Covela M, Cooper A, Brown S, Rosenthal M, Torres J, Collins IM, Gibbs P, Balana C. Correction to: A combined analysis of two prospective randomised studies exploring the impact of extended post-radiation temozolomide on survival outcomes in newly diagnosed glioblastoma. J Neurooncol 2024; 166:417-418. [PMID: 38289531 DOI: 10.1007/s11060-024-04581-x] [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: 02/01/2024]
Affiliation(s)
- L Gately
- Personalised Oncology Division, Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia.
- Department of Medical Oncology, Alfred Health, Melbourne, VIC, Australia.
| | - C Mesía
- Medical Oncology Service, Institut Català d'Oncologia, Hospitalet de Llobregat, Barcelona, Spain
| | - J M Sepúlveda
- Medical Oncology Service, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - S Del Barco
- Medical Oncology Service, Institut Català d'Oncologia Girona, Girona, Spain
| | - E Pineda
- Medical Oncology Service, Hospital Clinic de Barcelona, Barcelona, Spain
| | - R Gironés
- Medical Oncology Service, Hospital Universitario La Fe, Valencia, Spain
| | - J Fuster
- Medical Oncology Service, Hospital Son Espases, Palma de Mallorca, Spain
| | - W Hong
- Personalised Oncology Division, Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia
| | - M Dumas
- Personalised Oncology Division, Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia
| | - S Gill
- Department of Medical Oncology, Alfred Health, Melbourne, VIC, Australia
| | - L M Navarro
- Medical Oncology Service, Hospital de Salamanca, Salamanca, Spain
| | - A Herrero
- Medical Oncology Service, Hospital Miguel Servet, Zaragoza, Spain
| | - A Dowling
- Department of Medical Oncology, St Vincent's Hospital Melbourne, Melbourne, VIC, Australia
| | - R de Las Peñas
- Medical Oncology Service, Hospital Provincial de Castellón, Castellón, Spain
| | - M A Vaz
- Medical Oncology Service, Hospital Ramón y Cajal, Madrid, Spain
| | - M Alonso
- Medical Oncology Service, Hospital Virgen del Rocio, Seville, Spain
| | - Z Lwin
- Department of Medical Oncology, Royal Brisbane and Women's Hospital, Brisbane, QLD, Australia
| | - R Harrup
- Department of Medical Oncology, Royal Hobart Hospital, Hobart, TAS, Australia
| | - S Peralta
- Medical Oncology Service, Hospital Sant Joan de Reus, Reus, Spain
| | - A Long
- Department of Medical Oncology, Sir Charles Gairdner Hospital, Perth, WA, Australia
| | - P Perez-Segura
- Medical Oncology Service, Hospital Clinico San Carlos, Madrid, Spain
| | - E Ahern
- Department of Medical Oncology, Monash Health, Melbourne, VIC, Australia
| | - C O Garate
- Medical Oncology Service, Hospital Universitario Fundación Alcorcón, Alcorcón, Spain
| | - M Wong
- Department of Medical Oncology, Westmead Hospital, Westmead, NSW, Australia
| | - R Campbell
- Department of Medical Oncology, Bendigo Health, Bendigo, VIC, Australia
| | - K Cuff
- Department of Medical Oncology, Princess Alexandra Hospital, Brisbane, QLD, Australia
| | - R Jennens
- Department of Medical Oncology, Epworth Health, Richmond, VIC, Australia
| | - O Gallego
- Medical Oncology Service, Hospital de La Santa Creu I Sant Pau, Barcelona, Spain
| | - C Underhill
- Department of Medical Oncology, Border Medical Oncology, East Albury, NSW, Australia
| | | | - M Covela
- Medical Oncology Service, Hospital Lucus Augusti, Lugo, Spain
| | - A Cooper
- Department of Medical Oncology, Liverpool Hospital, Liverpool, NSW, Australia
| | - S Brown
- Department of Medical Oncology, Ballarat Health Services, Ballarat, VIC, Australia
| | - M Rosenthal
- Department of Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - J Torres
- Department of Medical Oncology, Goulburn Valley Health, Shepparton, VIC, Australia
| | - I M Collins
- Department of Medical Oncology, South West Regional Cancer Centre, Geelong, VIC, Australia
| | - P Gibbs
- Personalised Oncology Division, Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia
| | - C Balana
- Medical Oncology Service, Institut Català d'Oncologia, Badalona, Spain
- Badalona Applied Research Group in Oncology (B-ARGO), Institut Investigació Germans Trias I Pujol (IGTP), Badalona, Spain
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Gately L, Mesía C, Sepúlveda JM, Del Barco S, Pineda E, Gironés R, Fuster J, Hong W, Dumas M, Gill S, Navarro LM, Herrero A, Dowling A, de Las Peñas R, Vaz MA, Alonso M, Lwin Z, Harrup R, Peralta S, Long A, Perez-Segura P, Ahern E, Garate CO, Wong M, Campbell R, Cuff K, Jennens R, Gallego O, Underhill C, Martinez-Garcia M, Covela M, Cooper A, Brown S, Rosenthal M, Torres J, Collins IM, Gibbs P, Balana C. A combined analysis of two prospective randomised studies exploring the impact of extended post-radiation temozolomide on survival outcomes in newly diagnosed glioblastoma. J Neurooncol 2024; 166:407-415. [PMID: 38153582 DOI: 10.1007/s11060-023-04513-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 11/15/2023] [Indexed: 12/29/2023]
Abstract
PURPOSE The optimal duration of post-radiation temozolomide in newly diagnosed glioblastoma remains unclear, with no published phase III randomised trials. Standard-of-care stipulates 6 months. However, in routine care, it is often extended to 12 months, despite lacking robust supporting data. METHODS GEINO14-01 (Spain) and EX-TEM (Australia) studies enrolled glioblastoma patients without progression at the end of 6 months post-radiation temozolomide. Participants were randomised 1:1 to six additional months of temozolomide or observation. Primary endpoint was 6-month progression free survival from date of randomisation (6mPFS). Secondary endpoints included overall survival (OS) and toxicity. 204 patients were required to detect an improvement in 6mPFS from 50 to 60% (80% power). Neither study recruited sufficient patients. We performed a combined analysis of individual patient data. RESULTS 205 patients were recruited: 159 in GEINO14-01 (2014-2018) and 46 in EX-TEM (2019-2022). Median follow-up was 20.0 and 14.5 months. Baseline characteristics were balanced. There was no significant improvement in 6mPFS (57.2% vs 64.0%, OR0.75, p = 0.4), nor across any subgroups, including MGMT methylated; PFS (HR0.92, p = 0.59, median 7.8 vs 9.7 months); or OS (HR1.03, p = 0.87, median 20.1 vs 19.4 months). During treatment extension, 64% experienced any grade adverse event, mainly fatigue and gastrointestinal (both 54%). Only a minority required treatment changes: 4.5% dose delay, 7.5% dose reduction, 1.5% temozolomide discontinuation. CONCLUSION For glioblastoma patients, extending post-radiation temozolomide from 6 to 12 months is well tolerated but does not improve 6mPFS. We could not identify any subset that benefitted from extended treatment. Six months should remain standard-of-care.
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Affiliation(s)
- L Gately
- Personalised Oncology Division, Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia.
- Department of Medical Oncology, Alfred Health, Melbourne, VIC, Australia.
| | - C Mesía
- Medical Oncology Service, Institut Català d'Oncologia, Hospitalet de Llobregat, Barcelona, Spain
| | - J M Sepúlveda
- Medical Oncology Service, Hospital Universitario 12 de Octubre, Madrid, Spain
| | - S Del Barco
- Medical Oncology Service, Institut Català d'Oncologia Girona, Girona, Spain
| | - E Pineda
- Medical Oncology Service, Hospital Clinic de Barcelona, Barcelona, Spain
| | - R Gironés
- Medical Oncology Service, Hospital Universitario La Fe, Valencia, Spain
| | - J Fuster
- Medical Oncology Service, Hospital Son Espases, Palma de Mallorca, Spain
| | - W Hong
- Personalised Oncology Division, Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia
| | - M Dumas
- Personalised Oncology Division, Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia
| | - S Gill
- Department of Medical Oncology, Alfred Health, Melbourne, VIC, Australia
| | - L M Navarro
- Medical Oncology Service, Hospital de Salamanca, Salamanca, Spain
| | - A Herrero
- Medical Oncology Service, Hospital Miguel Servet, Zaragoza, Spain
| | - A Dowling
- Department of Medical Oncology, St Vincent's Hospital Melbourne, Melbourne, VIC, Australia
| | - R de Las Peñas
- Medical Oncology Service, Hospital Provincial de Castellón, Castellón, Spain
| | - M A Vaz
- Medical Oncology Service, Hospital Ramón y Cajal, Madrid, Spain
| | - M Alonso
- Medical Oncology Service, Hospital Virgen del Rocio, Seville, Spain
| | - Z Lwin
- Department of Medical Oncology, Royal Brisbane and Women's Hospital, Brisbane, QLD, Australia
| | - R Harrup
- Department of Medical Oncology, Royal Hobart Hospital, Hobart, TAS, Australia
| | - S Peralta
- Medical Oncology Service, Hospital Sant Joan de Reus, Reus, Spain
| | - A Long
- Department of Medical Oncology, Sir Charles Gairdner Hospital, Perth, WA, Australia
| | - P Perez-Segura
- Medical Oncology Service, Hospital Clinico San Carlos, Madrid, Spain
| | - E Ahern
- Department of Medical Oncology, Monash Health, Melbourne, VIC, Australia
| | - C O Garate
- Medical Oncology Service, Hospital Universitario Fundación Alcorcón, Alcorcón, Spain
| | - M Wong
- Department of Medical Oncology, Westmead Hospital, Westmead, NSW, Australia
| | - R Campbell
- Department of Medical Oncology, Bendigo Health, Bendigo, VIC, Australia
| | - K Cuff
- Department of Medical Oncology, Princess Alexandra Hospital, Brisbane, QLD, Australia
| | - R Jennens
- Department of Medical Oncology, Epworth Health, Richmond, VIC, Australia
| | - O Gallego
- Medical Oncology Service, Hospital de la Santa Creu I Sant Pau, Barcelona, Spain
| | - C Underhill
- Department of Medical Oncology, Border Medical Oncology, East Albury, NSW, Australia
| | | | - M Covela
- Medical Oncology Service, Hospital Lucus Augusti, Lugo, Spain
| | - A Cooper
- Department of Medical Oncology, Liverpool Hospital, Liverpool, NSW, Australia
| | - S Brown
- Department of Medical Oncology, Ballarat Health Services, Ballarat, VIC, Australia
| | - M Rosenthal
- Department of Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - J Torres
- Department of Medical Oncology, Goulburn Valley Health, Shepparton, VIC, Australia
| | - I M Collins
- Department of Medical Oncology, South West Regional Cancer Centre, Geelong, VIC, Australia
| | - P Gibbs
- Personalised Oncology Division, Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia
| | - C Balana
- Medical Oncology Service, Institut Català d'Oncologia, Badalona, Spain
- Badalona Applied Research Group in Oncology (B-ARGO), Institut Investigació Germans Trias i Pujol (IGTP), Badalona, Spain
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Khelef K, Maubec E, Jeudy G, Bonniaud B, Pham-Ledard A, Herms F, Aubin F, Beneton N, Dinulescu M, Jannic A, Duval-Modeste A, Archier E, Berthin C, Grange F, Arnault J, Heidelberger V, Moncourier M, Mansard S, Brunet-Possenti F, Triller R, Pracht M, Dumas M, Lauche O, Mortier L, Bedane C, Dalac Rat S. Duration of treatment with cemiplimab in advanced cutaneous squamous cell carcinoma in complete response: Real-life study. J Eur Acad Dermatol Venereol 2024; 38:e71-e73. [PMID: 37595320 DOI: 10.1111/jdv.19435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 08/11/2023] [Indexed: 08/20/2023]
Affiliation(s)
- K Khelef
- Service de Dermatologie, Centre Hospitalier Universitaire (CHU), Dijon, France
| | - E Maubec
- Service de Dermatologie, Hôpital Avicenne, Assistance Publique-Hôpitaux de Paris (APHP), Bobigny, France
- Campus de Bobigny-Université Sorbonne Paris Nord, Bobigny, France
- UMR 1124, Campus Saint Germain des Prés, Paris, France
| | - G Jeudy
- Service de Dermatologie, Centre Hospitalier Universitaire (CHU), Dijon, France
| | - B Bonniaud
- Service de Dermatologie, Centre Hospitalier Universitaire (CHU), Dijon, France
| | - A Pham-Ledard
- Service de Dermatologie, CHU de Bordeaux, Bordeaux, France
- Université de Bordeaux, Bordeaux, France
| | - F Herms
- Service de Dermatologie, Hôpital Saint-Louis, APHP, Paris, France
| | - F Aubin
- Service de Dermatologie, INSERM 1098, CHU de Besançon de Franche Comté, Besançon, France
- Université de Bourgogne-Franche-Comté, Besançon, France
| | - N Beneton
- Service de Dermatologie, CH du Mans, Le Mans, France
| | - M Dinulescu
- Service de Dermatologie, Hôpital Pontchaillou, Rennes, France
| | - A Jannic
- Service de Dermatologie, Hôpital Henri-Mondor, APHP, Créteil, France
| | - A Duval-Modeste
- Service de Dermatologie, Hôpital Charles-Nicolle, Rouen, France
| | - E Archier
- Service de Dermatologie, Hôpital Saint-Joseph, Marseille, France
| | - C Berthin
- Service de Dermatologie, CHU d'Angers, Angers, France
| | - F Grange
- Service de Dermatologie, CHU de Reims, Reims, France
| | - J Arnault
- Service de Dermatologie, CHU Amiens-Picardie, Amiens, France
| | - V Heidelberger
- Service de Dermatologie, CH Robert-Ballanger, Aulnay-sous-Bois, France
| | - M Moncourier
- Service de Dermatologie, CHU de Grenoble-Alpes, Grenoble, France
| | - S Mansard
- Service de Dermatologie, CHU de Clermont-Ferrand, Clermont-Ferrand, France
| | | | - R Triller
- Service de Dermatologie, Institut Franco-Britannique, Levallois-Perret, France
| | - M Pracht
- Groupe Hospitalier de St-Malo, Saint-Malo, France
| | - M Dumas
- Service de Dermatologie, CH René-Dubos, Pontoise, France
| | - O Lauche
- Clinique Clémentville, Montpellier, France
| | - L Mortier
- Service de Dermatologie, CHU de Lille, Lille, France
- INSERM U 1189, Université de Lille, Lille, France
| | - C Bedane
- Service de Dermatologie, Centre Hospitalier Universitaire (CHU), Dijon, France
| | - S Dalac Rat
- Service de Dermatologie, Centre Hospitalier Universitaire (CHU), Dijon, France
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Bouchard C, Ouellet J, Coté I, Dumas M, Dury A. Beneficial Effects of Intrarosa® (Vaginal Prasterone) on the Vaginal Histology of Women With VVA Treated or not With Aromatase Inhibitors: A Breakthrough in the Understanding of the Role of Androgens in Vaginal Health. J Sex Med 2022. [DOI: 10.1016/j.jsxm.2022.05.141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Dumas M, Jensen R, Au J, Munidasa S, Woods J, Robinson P, Santyr G, Ratjen F. 536: Evaluation of volume of trapped gas by multiple-breath washout and functional MRI in children with cystic fibrosis. J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)01959-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Munidasa S, Seethamraju R, Au J, Braganza S, Ratjen F, Santyr G, Zanette B, Couch M, Dumas M, Wee W. 161: Inter-visit reproducibility of free-breathing lung magnetic resonance imaging in cystic fibrosis. J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)01586-1] [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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James R, Admire B, Sisserson T, Cai Z, Dumas M, Inge L, Baumann J, Towne P, Dalvi D, ElGabry E. 1125P Analytical assessment of a diagnostic immunohistochemical assay for the detection of folate receptor-ɑ in epithelial ovarian cancers. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.767] [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] Open
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Wargny M, Potier L, Gourdy P, Pichelin M, Amadou C, Benhamou PY, Bonnet JB, Bordier L, Bourron O, Chaumeil C, Chevalier N, Darmon P, Delenne B, Demarsy D, Dumas M, Dupuy O, Flaus-Furmaniuk A, Gautier JF, Guedj AM, Jeandidier N, Larger E, Le Berre JP, Lungo M, Montanier N, Moulin P, Plat F, Rigalleau V, Robert R, Seret-Bégué D, Sérusclat P, Smati S, Thébaut JF, Tramunt B, Vatier C, Velayoudom FL, Vergès B, Winiszewski P, Zabulon A, Gourraud PA, Roussel R, Cariou B, Hadjadj S. Predictors of hospital discharge and mortality in patients with diabetes and COVID-19: updated results from the nationwide CORONADO study. Diabetologia 2021; 64:778-794. [PMID: 33599800 PMCID: PMC7890396 DOI: 10.1007/s00125-020-05351-w] [Citation(s) in RCA: 103] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 11/10/2020] [Indexed: 01/08/2023]
Abstract
AIMS/HYPOTHESIS This is an update of the results from the previous report of the CORONADO (Coronavirus SARS-CoV-2 and Diabetes Outcomes) study, which aims to describe the outcomes and prognostic factors in patients with diabetes hospitalised for coronavirus disease-2019 (COVID-19). METHODS The CORONADO initiative is a French nationwide multicentre study of patients with diabetes hospitalised for COVID-19 with a 28-day follow-up. The patients were screened after hospital admission from 10 March to 10 April 2020. We mainly focused on hospital discharge and death within 28 days. RESULTS We included 2796 participants: 63.7% men, mean age 69.7 ± 13.2 years, median BMI (25th-75th percentile) 28.4 (25.0-32.4) kg/m2. Microvascular and macrovascular diabetic complications were found in 44.2% and 38.6% of participants, respectively. Within 28 days, 1404 (50.2%; 95% CI 48.3%, 52.1%) were discharged from hospital with a median duration of hospital stay of 9 (5-14) days, while 577 participants died (20.6%; 95% CI 19.2%, 22.2%). In multivariable models, younger age, routine metformin therapy and longer symptom duration on admission were positively associated with discharge. History of microvascular complications, anticoagulant routine therapy, dyspnoea on admission, and higher aspartate aminotransferase, white cell count and C-reactive protein levels were associated with a reduced chance of discharge. Factors associated with death within 28 days mirrored those associated with discharge, and also included routine treatment by insulin and statin as deleterious factors. CONCLUSIONS/INTERPRETATION In patients with diabetes hospitalised for COVID-19, we established prognostic factors for hospital discharge and death that could help clinicians in this pandemic period. TRIAL REGISTRATION Clinicaltrials.gov identifier: NCT04324736.
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Affiliation(s)
- Matthieu Wargny
- l'institut du thorax, Inserm, CNRS, UNIV Nantes, CHU Nantes, Nantes, France
- CHU de Nantes, Inserm, CIC 1413, Pôle Hospitalo-Universitaire 11: Santé Publique, Clinique des Données, Nantes, France
| | - Louis Potier
- Département d'Endocrinologie, Diabétologie et Nutrition, Hôpital Bichat, Assistance Publique Hôpitaux de Paris, Paris, France
- Centre de Recherche des Cordeliers, Inserm, U-1138, Université de Paris, Paris, France
| | - Pierre Gourdy
- Département d'Endocrinologie, Diabétologie et Nutrition, CHU Toulouse, Toulouse, France
- Institut des Maladies Métaboliques et Cardiovasculaires, UMR1048 Inserm/UPS, Université de Toulouse, Toulouse, France
| | - Matthieu Pichelin
- l'institut du thorax, Inserm, CNRS, UNIV Nantes, CHU Nantes, Nantes, France
| | - Coralie Amadou
- Département de Diabétologie, Centre Hospitalier Sud Francilien, Corbeil-Essonnes, France
- Université Paris-Saclay, Paris, France
| | - Pierre-Yves Benhamou
- Service Endocrinologie-Diabétologie-Nutrition, CHU Grenoble, Grenoble, France
- University Grenoble-Alpes, Grenoble, France
| | - Jean-Baptiste Bonnet
- Département d'Endocrinologie, Diabète, Nutrition et CIC Inserm 1411, CHU de Montpellier, Montpellier, France
| | - Lyse Bordier
- Département de Diabétologie, H.I.A. Begin, Saint Mandé, France
| | - Olivier Bourron
- Sorbonne Université, Paris, France
- Assistance Publique Hôpitaux de Paris, Département de Diabétologie, CHU La Pitié Salpêtrière-Charles Foix, Paris, France
- Centre de Recherche des Cordeliers, Inserm, U-1138, Paris, France
- Institute of Cardiometabolism and Nutrition ICAN, Paris, France
| | | | | | - Patrice Darmon
- Service d'Endocrinologie, Maladies Métaboliques et Nutrition, Hôpital de la Conception, Assistance Publique Hôpitaux de Marseille, Marseille, France
- C2VN, Inserm, INRA, Aix Marseille Université, Marseille, France
| | - Blandine Delenne
- Service d'Endocrinologie, Diabétologie et Maladies Métaboliques, Centre Hospitalier d'Aix-en-Provence, Aix-en-Provence, France
| | - Delphine Demarsy
- Service Endocrinologie-Diabétologie, Centre Hospitalier de la Côte Basque, Bayonne, France
| | - Marie Dumas
- Service Endocrinologie-Diabétologie, Hôpital Saint Vincent de Paul Lille, Lille, France
| | - Olivier Dupuy
- Service de Diabétologie Endocrinologie, Hôpital Paris Saint-Joseph, Paris, France
| | - Anna Flaus-Furmaniuk
- Service d'Endocrinologie - Diabétologie, Site Felix Guyon, CHU de la Réunion, Saint-Denis de la Réunion, France
| | - Jean-François Gautier
- Centre de Recherche des Cordeliers, Inserm, U-1138, Université de Paris, Paris, France
- Service de Diabétologie et d'Endocrinologie, Hôpital Lariboisière, Assistance Publique Hôpitaux de Paris, Paris, France
| | - Anne-Marie Guedj
- Service des Maladies Métaboliques et Endocriniennes, CHU de Nîmes, Université de Montpellier, Nîmes, France
| | - Nathalie Jeandidier
- Service d'Endocrinologie, Diabétologie et Nutrition, Hôpitaux Universitaires de Strasbourg, UdS, Strasbourg, France
| | - Etienne Larger
- Service de Diabétologie et Immunologie Clinique, Hôpital Cochin, Assistance Publique Hôpitaux de Paris, Centre-Université de Paris, Paris, France
| | | | - Myriam Lungo
- Service d'Endocrinologie et de Diabétologie, Centre Hospitalier de Bastia, Bastia, France
| | | | - Philippe Moulin
- Hôpital Cardiovasculaire Louis Pradel, Hospices Civils de Lyon, Inserm UMR 1060 Carmen, Université Claude Bernard Lyon 1, Lyon, France
| | - Françoise Plat
- Service d'Endocrinologie et Maladies Métaboliques, Centre Hospitalier d'Avignon, Avignon, France
| | - Vincent Rigalleau
- Endocrinology-Nutrition Department, Centre Hospitalier Universitaire de Bordeaux, Université de Bordeaux, Bordeaux, France
| | - René Robert
- Université de Poitiers; CIC Inserm 1402; Médecine Intensive Réanimation, Centre Hospitalier Universitaire de Poitiers, Poitiers, France
| | - Dominique Seret-Bégué
- Service de Diabétologie, Endocrinologie et Nutrition, Centre Hospitalier de Gonesse, Gonesse, France
| | - Pierre Sérusclat
- Service d'Endocrinologie, Diabétologie et Maladies Métaboliques, Groupe Hospitalier Mutualiste Les Portes du Sud, Venissieux, France
| | - Sarra Smati
- l'institut du thorax, Inserm, CNRS, UNIV Nantes, CHU Nantes, Nantes, France
| | | | - Blandine Tramunt
- Département d'Endocrinologie, Diabétologie et Nutrition, CHU Toulouse, Toulouse, France
- Institut des Maladies Métaboliques et Cardiovasculaires, UMR1048 Inserm/UPS, Université de Toulouse, Toulouse, France
| | - Camille Vatier
- Assistance Publique Hôpitaux de Paris, Saint-Antoine Hospital, Reference Center of Rare Diseases of Insulin Secretion and Insulin Sensitivity (PRISIS), Department of Endocrinology, Paris, France
- Sorbonne University, Inserm UMRS 938, Saint-Antoine Research Center, Paris, France
| | - Fritz-Line Velayoudom
- Service d'Endocrinologie, Diabétologie et Métabolisme, Centre Hospitalier Universitaire de Guadeloupe, Pointe-à-Pitre, France
| | - Bruno Vergès
- Service Endocrinologie, Diabétologie et Maladies Métaboliques, Hôpital du Bocage, Dijon, France
| | - Patrice Winiszewski
- Service d'Endocrinologie, Diabétologie et Nutrition, Hôpital Nord Franche-Comté, Trévenans, France
| | - Audrey Zabulon
- Service d'Endocrinologie et Diabétologie, CHU de Martinique, Fort-de-France, France
| | - Pierre-Antoine Gourraud
- CHU de Nantes, Inserm, CIC 1413, Pôle Hospitalo-Universitaire 11: Santé Publique, Clinique des Données, Nantes, France
| | - Ronan Roussel
- Département d'Endocrinologie, Diabétologie et Nutrition, Hôpital Bichat, Assistance Publique Hôpitaux de Paris, Paris, France
- Centre de Recherche des Cordeliers, Inserm, U-1138, Université de Paris, Paris, France
| | - Bertrand Cariou
- l'institut du thorax, Inserm, CNRS, UNIV Nantes, CHU Nantes, Nantes, France.
| | - Samy Hadjadj
- l'institut du thorax, Inserm, CNRS, UNIV Nantes, CHU Nantes, Nantes, France.
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Fredeau L, Hober C, Pham-Ledard A, Boubaya M, Herms F, Celerier P, Aubin F, Beneton N, Dinulescu M, Jannic A, Meyer N, Duval Modeste AB, Cesaire L, Neidhardt EM, Archier E, Dreno B, Lesage C, Berthin C, Kramkimel N, Grange F, De Quatrebarbes J, Stoebner P, Poulalhon N, Arnault J, Abed S, Bonniaud B, Darras S, Heidelberger V, Devaux S, Moncourier M, Misery L, Mansard S, Etienne M, Brunet-Possenti F, Jacobzone C, Lesbazeilles R, Skowron F, Sanchez J, Catala S, Samimi M, Tazi Y, Spaeth D, Gaudy-Marqueste C, Collard O, Triller R, Pracht M, Dumas M, Peuvrel L, Combe P, Lauche O, Guillet P, Reguerre Y, Kupfer-Bessaguet I, Solub D, Schoeffler A, Bedane C, Dalac S, Mortier L, Maubec E. Cémiplimab et carcinomes épidermoïdes cutanés localement évolués ou métastatiques : premières données de vie réelle. Ann Dermatol Venereol 2020. [DOI: 10.1016/j.annder.2020.09.036] [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: 10/22/2022]
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Flipo R, Isnard C, Coutard A, Martres P, Dumas M, Blum L, Begon E. [Atypical hand, foot and mouth disease in adults: A note on 6 cases]. Ann Dermatol Venereol 2020; 147:857-861. [PMID: 32654792 DOI: 10.1016/j.annder.2020.04.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 02/05/2020] [Accepted: 04/28/2020] [Indexed: 10/23/2022]
Abstract
INTRODUCTION Hand, foot and mouth disease (HFMD) is form of viral dermatosis well known among the pediatric population, in whom it has a typical presentation. However, it is less common in adults, with a more heterogeneous presentation, potentially making diagnosis extremely challenging for the clinician. PATIENTS AND METHODS This was a retrospective case series from 2013 to 2018 of HFMD in adults, with all cases being confirmed by cutaneous polymerase chain reaction (PCR). We studied the clinical, epidemiological and viral characteristics of each patient. RESULTS This series of 6 cases comprised 4 men and 2 women, with a mean age of 42.5 years. Five patients presented extended purpuric lesions, four had bullous lesions, and three showed cutaneous signs without any mucosal lesions. Extended lesions on the trunk were found in four patients. One patient presented rosette-shaped pustular lesions on the limbs, one had eczema-like lesions on the scalp, and one presented extended purpuric lesions on the soles. DISCUSSION These different cases of adult HFMD raise questions about differential diagnosis in relation to other acute cutaneous and mucous diseases. It is essential to be aware of these different types of presentation of the disease in order to determine the diagnosis and discuss preventive measures.
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Affiliation(s)
- R Flipo
- Service de dermatologie, hôpital René-Dubos, 95300 Pontoise, France.
| | - C Isnard
- Service de dermatologie, hôpital René-Dubos, 95300 Pontoise, France
| | - A Coutard
- Service de microbiologie, hôpital René-Dubos, 95300 Pontoise, France
| | - P Martres
- Service de microbiologie, hôpital René-Dubos, 95300 Pontoise, France
| | - M Dumas
- Service de dermatologie, hôpital René-Dubos, 95300 Pontoise, France
| | - L Blum
- Service de dermatologie, hôpital René-Dubos, 95300 Pontoise, France
| | - E Begon
- Service de dermatologie, hôpital René-Dubos, 95300 Pontoise, France
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Dumas M, Flipo R, Blum L, Jouzel C, Brochériou I, Begon E. [Cholesterol crystal embolism mimicking a DRESS]. Rev Med Interne 2020; 41:275-278. [PMID: 32089328 DOI: 10.1016/j.revmed.2020.01.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 01/20/2020] [Accepted: 01/26/2020] [Indexed: 01/19/2023]
Abstract
INTRODUCTION Clinical presentation of cholesterol crystal embolism (CCE) can be dermatologic when cholesterol crystals become lodged in small cutaneous arteries resulting in ischemia. We report a case of CCE with erythroderma misleading to a diagnostic of drug reaction with eosinophilia and systemic symptoms (DRESS). CASE REPORT A 66 year-old woman presented with erythroderma few months after initiation of allopurinol. Acute renal failure was present with elevation in plasma creatinine concentration (523μmol/L) and hypereosinophilia (HE) (5666/mm3). Finally, the REGISCAR score helped to rule out DRESS diagnostic. Past blood-count tests were analyzed revealing chronic HE present before allopurinol initiation. Renal biopsy identified CCE. CONCLUSION This case is the first to report a DRESS like presentation of CCE. Clinical findings are secondary to HE and not to occlusion of cutaneous arteries.
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Affiliation(s)
- M Dumas
- Service de dermatologie, hôpital René Dubos-Pontoise, 6, avenue de l'île de France, 95300 Pontoise, France.
| | - R Flipo
- Service de dermatologie, hôpital René Dubos-Pontoise, 6, avenue de l'île de France, 95300 Pontoise, France
| | - L Blum
- Service de dermatologie, hôpital René Dubos-Pontoise, 6, avenue de l'île de France, 95300 Pontoise, France
| | - C Jouzel
- Service de néphrologie, hôpital René Dubos-Pontoise, 6, avenue de l'île de France, 95300 Pontoise, France
| | - I Brochériou
- Service d'anatomie et cytologie pathologiques, hôpital universitaire Pitié-Salpêtrière, Sorbonne université, 47-83, boulevard de l'hôpital, 75013 Paris, France
| | - E Begon
- Service de dermatologie, hôpital René Dubos-Pontoise, 6, avenue de l'île de France, 95300 Pontoise, France
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Dixit P, Anwar M, Saif J, Chamorro-Jorganes A, Dumas M, Angelini G, Punjabi P, Srivastava P, Katare R, Petretto E, Emanueli C. P6309Impaired secretion of clusterin in pericardial fluid of diabetics, a deleterious outcome for the cardiac micro-vasculature. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Extracellular vesicles are vital mediators of cell-to-cell communications. We previously demonstrated that in the adult heart, exosomes released in the pericardial fluid (PF) have the functional capability to induce cell survival and angiogenesis in recipient endothelial cells. It has previously been shown that PF exosomes from patients with an existing myocardial infarction (MI) contain clusterin (CLU). Remarkably, secreted CLU is cardio-protective as evidenced by enhanced arteriogenesis and reduced apoptosis in animal models of MI. We hypothesize that type 2 Diabetes Mellitus (T2DM) along with ischemic heart disease (IHD) alters PF EV content impairing its reparative angiogenic potential.
Aim
To investigate the role of T2DM in modulating human PF exosomal content and its vascular action.
Methods and results
PF samples were collected from 3 different groups of patients (N=3): 1) Ischemic heart disease (IHD) with or 2) without T2DM, and 3) non-ischaemic, non-diabetic controls operated for mitral valve repair.
The impact of PF exosomes on human coronary microvascular ECs (HCMECs) was evaluated by cell based functional assays for measuring apoptosis, proliferation and angiogenesis. Interestingly, unlike PF exosomes from control patients, PF exosomes from DM patients with IHD promoted EC apoptosis and impaired angiogenesis.
To investigate the effect of T2DM on PF content, we performed high throughput proteomic and metabolomic analysis of whole PF and PF EVs. We identified proteins and metabolites that were differentially expressed under T2DM condition by using the R package Limma. Employing a network approach, protein and metabolic data were integrated by using our newly developed inhouse R package Metabosignal. This networks approach revealed an interesting interaction circuit involving protein CLU. The T2DM-associated reduction of CLU level in the PF, identified from the “omics” analyses was confirmed by ELISA (n=8 patients per group).
To examine the effects of DM and ischemia on CLU intracellular expression and secretion, HCMECs were exposed to high D-glucose (HG, 25 mM) and hypoxia (1%O2). In line with our PF data, HCMECs exposed to HG and hypoxia showed lower levels of both CLU mRNA and secreted CLU (ELISA). Importantly, recombinant CLU (rCLU) treatment on HCMECs rescued their angiogenic potential, induced cell proliferation and protected them from apoptosis under both HG and hypoxia conditions. In addition, silencing of endogenous levels of CLU in HCMECs impaired angiogenesis, suggesting that CLU might be an inherent component of the angiogenesis machinery in ECs.
Conclusions
This study suggests that DM reduces the level of secreted CLU in the PF, depriving myocardial micro-vessels of this protective and regenerative mediator. Restoring diminished CLU levels in the diabetic heart could be a possible therapeutic approach for contrasting diabetic micro-angiopathy.
Acknowledgement/Funding
British Heart Foundation Program Grant
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Affiliation(s)
- P Dixit
- Imperial College London, London, United Kingdom
| | - M Anwar
- Imperial College London, London, United Kingdom
| | - J Saif
- Imperial College London, London, United Kingdom
| | | | - M Dumas
- Imperial College London, London, United Kingdom
| | - G Angelini
- Bristol Heart Institute, Bristol, United Kingdom
| | - P Punjabi
- Imperial College London, London, United Kingdom
| | | | - R Katare
- University of Otago, Physiology, Dunedin, New Zealand
| | - E Petretto
- Duke-NUS Graduate Medical School Singapore, Singapore, Singapore
| | - C Emanueli
- Imperial College London, London, United Kingdom
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Dumas M, Elshaikh M, Lee J, Feldman A, Pantelic M, Hearshen D, Movsas B, Chetty I, Wen N. Prospective Study of Dominant Intraprostatic Lesion (DIL) Response Before, During, and Post Radiation Treatment using Multi-Parametric MRI Biomarkers. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.551] [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: 10/26/2022]
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Dumas M, Corre F, Payancé A, Guedj N, Durand F, Descamps V, Le Bozec P. [Eruptive disseminated superficial porokeratosis associated with acute hepatitis E]. Ann Dermatol Venereol 2019; 146:655-658. [PMID: 31326131 DOI: 10.1016/j.annder.2019.05.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Revised: 12/06/2018] [Accepted: 05/15/2019] [Indexed: 11/28/2022]
Abstract
BACKGROUND Porokeratosis (PK) is a rare form of dermatosis characterized by a keratinization disorder of unknown etiology. Herein we describe the first case associated with hepatitis E virus infection. PATIENTS AND METHODS A 69-year-old patient with colorectal cancer treated with radiation and chemotherapy followed by surgery in April 2017 presented two months later with jaundice associated with annular keratotic lesions of the skin with a raised border. Blood tests revealed elevated liver enzymes and hyperbilirubinemia. Viral hepatitis E was diagnosed based on serology and viral PCR after other aetiologies such as obstruction, auto-immune disease and other viruses (HAV, HBV, HCV, HSV, HIV, EBV and CMV) had been ruled out. A skin biopsy showed a cornoid lamella. Disseminated superficial porokeratosis associated with hepatitis E infection was then diagnosed. DISCUSSION The mechanism of PK is unknown and probably involves a combination of different factors. PK has been described in patients with treatment-induced immunosuppression, solid cancer or AIDS, sometimes promoted by HCV viral infection, but never with concomitant HEV infection. A combination of immunosuppression induced by radio-chemotherapy and HEV infection could have prompted the development of PK in our patient. CONCLUSION We report the first case of eruptive disseminated superficial porokeratosis associated with hepatitis E infection. The exact role of hepatitis E infection in the development of PK is still unclear.
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Affiliation(s)
- M Dumas
- Unité de dermatologie, hôpitaux universitaires Paris Nord Val-de-Seine (HUPNVS), hôpital Beaujon, 92110 Clichy, France.
| | - F Corre
- Service d'hépatologie, HUPNVS, hôpital Beaujon, 92110 Clichy, France
| | - A Payancé
- Service d'hépatologie, HUPNVS, hôpital Beaujon, 92110 Clichy, France
| | - N Guedj
- Service d'anatomopathologie, HUPNVS, hôpital Beaujon, 92110 Clichy, France
| | - F Durand
- Service d'hépatologie, HUPNVS, hôpital Beaujon, 92110 Clichy, France
| | - V Descamps
- Service de dermatologie, HUPNVS, hôpital Bichat, 75018 Paris, France
| | - P Le Bozec
- Unité de dermatologie, hôpitaux universitaires Paris Nord Val-de-Seine (HUPNVS), hôpital Beaujon, 92110 Clichy, France
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Dumas M, Blum L, Bégon E, Brazille P, Develoux M, Moreno-Sabater A, Bachmeyer C. Crusted cutaneous lesions requiring early diagnosis and appropriate treatment. Neth J Med 2018; 76:450. [PMID: 30569892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Affiliation(s)
- M Dumas
- Unité de Dermatologie, Hôpital René Dubos, Pontoise, France
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Dumas M, Hua C, Hotz C, Velter C, Duong TA, Maraffi T, Ortonne N, Hüe S, Fardet L, de Prost N, Wolkenstein P, Ingen-Housz-Oro S, Chosidow O. Epidermal necrolysis and autoimmune diseases: two more observations supporting the concept that 'toxic' epidermal necrolysis can be 'non-toxic'. J Eur Acad Dermatol Venereol 2018. [PMID: 29524279 DOI: 10.1111/jdv.14935] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- M Dumas
- Dermatology Department, AP-HP, Henri Mondor Hospital, Créteil, France
| | - C Hua
- Dermatology Department, AP-HP, Henri Mondor Hospital, Créteil, France
| | - C Hotz
- Dermatology Department, AP-HP, Henri Mondor Hospital, Créteil, France
| | - C Velter
- Dermatology Department, AP-HP, Henri Mondor Hospital, Créteil, France
| | - T A Duong
- Dermatology Department, AP-HP, Henri Mondor Hospital, Créteil, France
| | - T Maraffi
- Intensive Care Unit, AP-HP, Henri Mondor Hospital, Créteil, France
| | - N Ortonne
- Pathology Department, AP-HP, Henri Mondor Hospital, Créteil, France.,Université Paris Est Créteil Val de marne, UPEC, Créteil, France
| | - S Hüe
- Université Paris Est Créteil Val de marne, UPEC, Créteil, France.,Immunology Department, AP-HP, Henri Mondor hospital, Créteil, France
| | - L Fardet
- Dermatology Department, AP-HP, Henri Mondor Hospital, Créteil, France
| | - N de Prost
- Intensive Care Unit, AP-HP, Henri Mondor Hospital, Créteil, France
| | - P Wolkenstein
- Dermatology Department, AP-HP, Henri Mondor Hospital, Créteil, France.,Université Paris Est Créteil Val de marne, UPEC, Créteil, France.,Referral Center for Severe Cutaneous Adverse Reactions, Créteil, France
| | - S Ingen-Housz-Oro
- Dermatology Department, AP-HP, Henri Mondor Hospital, Créteil, France.,Referral Center for Severe Cutaneous Adverse Reactions, Créteil, France
| | - O Chosidow
- Dermatology Department, AP-HP, Henri Mondor Hospital, Créteil, France.,Université Paris Est Créteil Val de marne, UPEC, Créteil, France.,Referral Center for Severe Cutaneous Adverse Reactions, Créteil, France
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Dumas M, Henrion-Charbit F, Rybojad M, Jachiet M, Cordoliani F, Petit A, Pascal F, Flavant A, Bagot M, Cerf-Bensussan N, Malamut G, Bouaziz JD. Caractéristiques cliniques et réponse thérapeutique de la granulomatose oro-faciale. Ann Dermatol Venereol 2017. [DOI: 10.1016/j.annder.2017.09.164] [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: 10/18/2022]
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Dumas M, Zumelzu C, Pomares TB, Rouyer C, Laroche L, Caux F. Diphtérie cutanée au retour du Sénégal. Ann Dermatol Venereol 2017. [DOI: 10.1016/j.annder.2017.09.462] [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: 10/18/2022]
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Dumas M, Franchi J, Bernois A, Juan M, Leblanc E, Heusele C, Bensussan A, Bagot M, Schnebert S, Michel L. 160 In vivo investigation of stratum corneum thickness and epidermal barrier structure: Links with inflammatory status. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.470] [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: 10/18/2022]
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Etzi C, Gauriau C, Ralambondrainy S, Heusele C, Cornacchione S, Beaufrere-Seron B, Korichi R, Schnebert S, Dumas M, Leger D. 050 Acute sleep deprivation: Consequences on face skin. A non-invasive instrumental investigation. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.146] [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: 10/18/2022]
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Mitra G, Dobkin M, Dumas M, Ng P, Roldan G, Galloway C. Hepatitis A Viral Safety of
Plasma-Derived Factor VIII
Concentrate Koate®-HP. Vox Sang 2017. [DOI: 10.1159/000462681] [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: 11/19/2022]
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Barbet N, Dumas M, Mihelich G, Souchet Y, Thomas JB. Expert Systems for the Analysis of Transients on Nuclear Reactors: SEXTANT, A General-Purpose Physical Analyzer. NUCL SCI ENG 2017. [DOI: 10.13182/nse88-a23576] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [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]
Affiliation(s)
- N. Barbet
- Centre d’Etudes Nucléaires de Saclay Sérvice d’Etudes des Réacteurs et de Mathématiques Appliquées Département des Etudes Mécaniques et Thermiques, 91191 Gif-sur-Yvette Cedex, France
| | - M. Dumas
- Centre d’Etudes Nucléaires de Saclay Sérvice d’Etudes des Réacteurs et de Mathématiques Appliquées Département des Etudes Mécaniques et Thermiques, 91191 Gif-sur-Yvette Cedex, France
| | - G. Mihelich
- Centre d’Etudes Nucléaires de Saclay Sérvice d’Etudes des Réacteurs et de Mathématiques Appliquées Département des Etudes Mécaniques et Thermiques, 91191 Gif-sur-Yvette Cedex, France
| | - Y. Souchet
- Centre d’Etudes Nucléaires de Saclay Sérvice d’Etudes des Réacteurs et de Mathématiques Appliquées Département des Etudes Mécaniques et Thermiques, 91191 Gif-sur-Yvette Cedex, France
| | - J. B. Thomas
- Centre d’Etudes Nucléaires de Saclay Sérvice d’Etudes des Réacteurs et de Mathématiques Appliquées Département des Etudes Mécaniques et Thermiques, 91191 Gif-sur-Yvette Cedex, France
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Lazou-Soulier K, Franchi J, Leblanc-Noblesse E, Jeanneton O, Nizard C, Schnebert S, Kurfurst R, Dumas M. 657 Impact of inflammatory mediators on clock genes expression in normal human epidermal keratinocytes. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.679] [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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Boulgana R, Sassier Y, Galllazzini M, Schaeffer P, Leblanc-Noblesse E, Viltard M, Schnebert S, Dumas M. 471 NFAT-5 regulates the response to osmotic stress, clonogenic potential and differentiation of normal human keratinocytes and disappears in the aged epidermis. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.490] [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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Dumas M, Machuron F, Coudert L, Dujardin K, Deplanque D, Vambergue A, Bombois S. Fréquence des troubles cognitifs et facteurs associés dans une cohorte de patients diabétiques. Rev Neurol (Paris) 2017. [DOI: 10.1016/j.neurol.2017.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Dumas M, Laly P, Gottlieb J, Vercellino L, Bagot M, Baroudjian B, Madelaine I, Basset Seguin N, Pages C, Lioté F, Lebbé C. Ostéopénie fracturaire sous anti-MEK. Ann Dermatol Venereol 2016. [DOI: 10.1016/j.annder.2016.09.601] [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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Darsaud A, Bourdon L, Chevrier C, Keita M, Bouteille B, Queyroy A, Canini F, Cespuglio R, Dumas M, Buguet A. Clinical Follow-Up in the Rat Experimental Model of African-Trypanosomiasis. Exp Biol Med (Maywood) 2016; 228:1355-62. [PMID: 14681551 DOI: 10.1177/153537020322801114] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Animal models of Human African Trypanosomiasis (HAT) have been developed to understand the pathogenic mechanisms leading to the passage into the neurological phase, most of them referring to histological aspects but not clinical or behavioral data. Our study aimed at defining simple clinical and/or behavioral markers of the passage between the hemolymphatic phase and the meningo-encephalitic stage of the disease. Sprague-Dawley rats (n=24) were infected with Trypanosoma brucei brucei AnTat 1.1E. Food intake and body weight were measured daily from the day of infection until death. Hematocrit was measured twice a week. Behavioral disturbances were evaluated through an Open-field test. A sudden weight loss occurred on the twelfth day after infection, due to a significant drop of food intake starting two days before. The rats developed an anemic state shown by the hematocrit measurements. The Open-field test showed them to be less active and reactive as soon as the second week after infestation. A complementary histological study observed trypanosomes and inflammatory cells in the choroid plexus at the same period. These results are in favor of central nervous system functional disturbances. The observed weight loss is discussed as being a parameter of the entry in the meningo-encephalitic phase. The rat model reproduces neurological symptoms observed in the human disease and may prove to be useful for further neurohistological and therapeutic studies.
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Affiliation(s)
- A Darsaud
- Centre de recherches du Service de santé des armées, département des facteurs humains, La Tronche cedex, France.
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Nizard C, Lemestr A, Capallere C, Portolan F, Botto J, Imbert I, Dumas M, Schnebert S, Bavouzet B, Domloge N. 083 Beneficial impact of an innovative extract derived from jasmine on reconstructed epidermis damaged by notch signaling inhibition. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.06.101] [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: 10/21/2022]
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Dumas M, Wen N. SU-F-T-578: Characterization of Vidar DosimetryPro Advantage RED Scanner with Application to SBRT and SRS QA. Med Phys 2016. [DOI: 10.1118/1.4956763] [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: 11/07/2022] Open
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Dumas M, Begon E, Blum L. Une toxidermie à l’amoxicilline épargnant une plaque d’érythème chronique migrant de Lyme : phénomène de Renbok. Ann Dermatol Venereol 2015. [DOI: 10.1016/j.annder.2015.10.402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Luna Mendez J, Nizard M, Becker D, Cruz A, Bahamonde M, Ratsimbazafy V, Gerard D, Dumas M, Silberberg D, Preux P, Cruz M. Analysis of the implementation process for anti-epileptic treatment in Ecuador. J Neurol Sci 2015. [DOI: 10.1016/j.jns.2015.08.514] [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: 10/22/2022]
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Dumas M, Warzocha U, Schischmanoff PO, Guyot A, Safa G, Prost-Squarcioni C, Lévy A, Roulot D, Laroche L, Caux F. Syndrome de Dorfman-Chanarin : analyse d’une série de 10 patients. Ann Dermatol Venereol 2014. [DOI: 10.1016/j.annder.2014.09.327] [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: 11/29/2022]
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Dumas M, Rakowski J. SU-E-T-265: Presage Thin Sheet Dosimeter Characterization. Med Phys 2014. [DOI: 10.1118/1.4888596] [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: 11/07/2022] Open
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Rey M, Dumas M, Pichard E, Richard-Lenoble D, Rodhain F, Touze JE. [French tropical medicine and international cooperation. Issues and perspectives]. Med Sante Trop 2014; 24:5. [PMID: 24736216 DOI: 10.1684/mst.2014.0295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Affiliation(s)
- M Rey
- Groupe de travail de l'Académie nationale de médecine
| | - M Dumas
- Groupe de travail de l'Académie nationale de médecine
| | - E Pichard
- Groupe de travail de l'Académie nationale de médecine
| | | | - F Rodhain
- Groupe de travail de l'Académie nationale de médecine
| | - J E Touze
- Groupe de travail de l'Académie nationale de médecine
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Serre C, Labarrade F, Nizard C, Dumas M, Imbert I, Busuttil V, Botto JM, Garcia N, Schnebert, Domloge N. Possible implication des miR-203 dans la diminution du potentiel des « cellules-souches » des kératinocytes en ciblant le niveau d’expression de la survivine. Ann Dermatol Venereol 2013. [DOI: 10.1016/j.annder.2013.09.619] [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: 10/26/2022]
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Franchi J, Dumas M, Schnebert S. Quantification de l’effet activateur de la glucose-6P-deshydrogénase par une formule cosmétique appliquée de façon topique sur une peau maintenue en survie. Ann Dermatol Venereol 2013. [DOI: 10.1016/j.annder.2013.09.613] [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: 10/26/2022]
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Franchi J, Marteau C, Dumas M, Kurfurst R, Joly F, Schnebert S. Développement d’un modèle de coculture kératinocytes-mélanocytes, aide à la connaissance de la régulation de la mélanogenèse dans différentes populations. Ann Dermatol Venereol 2013. [DOI: 10.1016/j.annder.2013.09.628] [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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Botto JM, Labarrade F, Nizard C, Dumas M, Garcia N, Imbert I, Busuttil V, Schnebert S, Domloge N. Effet d’un extrait de riz sur la modulation de composants CPC et des variants de la survivine. Ann Dermatol Venereol 2013. [DOI: 10.1016/j.annder.2013.09.622] [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: 10/26/2022]
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Dumas M, Nadal-Wollbold F, Gaussem P, Perez M, Mirault T, Létienne R, Bourbon T, Grelac F, Le Grand B, Bachelot-Loza C. Antiplatelet and antithrombotic effect of F 16618, a new thrombin proteinase-activated receptor-1 (PAR1) antagonist. Br J Pharmacol 2012; 165:1827-1835. [PMID: 21913899 DOI: 10.1111/j.1476-5381.2011.01668.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND AND PURPOSE New antithrombotic agents with the potential to prevent atherothrombotic complications are being developed to target receptors on platelets and other cells involved in plaque growth. The aim of this study was to investigate the antiplatelet effects of F 16618, a new non-peptidic PAR1 (thrombin receptor) antagonist. EXPERIMENTAL APPROACH We investigated the inhibitory effect of F 16618 on human platelet aggregation ex vivo, in whole blood and washed platelets, by using a multiple-electrode platelet aggregometer based on impedance and an optical aggregometer, respectively. Its effects on whole-blood haemostasis (clot parameters) were analysed with the ROTEM thromboelastometry device and the platelet function analyser PFA-100. A guinea-pig model of arterial thrombosis was used to investigate its effects on thrombus formation in vivo. KEY RESULTS F 16618 inhibited PAR1 agonist peptide (SFLLR-peptide)-induced washed platelet aggregation ex vivo. This effect was concentration-dependent and exhibited a competitive inhibition profile. Washed platelet aggregation, as well as P-selectin expression induced by thrombin, were significantly inhibited by 10 µM F 16618. In whole-blood experiments, 20 µM F 16618 inhibited SFLLR-induced platelet aggregation by 49%. In contrast, it had no effect on whole-blood haemostasis. In the guinea-pig model of carotid thrombosis, 0.32 mg·kg(-1) F 16618 doubled the occlusion time. CONCLUSIONS AND IMPLICATIONS F 16618 was shown to have strong antithrombotic activity in vivo and moderate antiplatelet effects ex vivo. As these effects were not associated with major effects on physiological haemostasis, this molecule is a good antiplatelet drug candidate for use either alone or in combination with current treatments.
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Affiliation(s)
- M Dumas
- Inserm UMR S 765, Faculté de Pharmacie, Paris, FranceUniversité Paris Descartes, Sorbonne Paris Cité, Paris, FranceCentre de Recherche Pierre Fabre, 17, Avenue Jean Moulin, Castres cedex, FranceAP-HP, Hôpital Européen Georges Pompidou, Service d'Hématologie Biologique, Paris, France
| | - F Nadal-Wollbold
- Inserm UMR S 765, Faculté de Pharmacie, Paris, FranceUniversité Paris Descartes, Sorbonne Paris Cité, Paris, FranceCentre de Recherche Pierre Fabre, 17, Avenue Jean Moulin, Castres cedex, FranceAP-HP, Hôpital Européen Georges Pompidou, Service d'Hématologie Biologique, Paris, France
| | - P Gaussem
- Inserm UMR S 765, Faculté de Pharmacie, Paris, FranceUniversité Paris Descartes, Sorbonne Paris Cité, Paris, FranceCentre de Recherche Pierre Fabre, 17, Avenue Jean Moulin, Castres cedex, FranceAP-HP, Hôpital Européen Georges Pompidou, Service d'Hématologie Biologique, Paris, France
| | - M Perez
- Inserm UMR S 765, Faculté de Pharmacie, Paris, FranceUniversité Paris Descartes, Sorbonne Paris Cité, Paris, FranceCentre de Recherche Pierre Fabre, 17, Avenue Jean Moulin, Castres cedex, FranceAP-HP, Hôpital Européen Georges Pompidou, Service d'Hématologie Biologique, Paris, France
| | - T Mirault
- Inserm UMR S 765, Faculté de Pharmacie, Paris, FranceUniversité Paris Descartes, Sorbonne Paris Cité, Paris, FranceCentre de Recherche Pierre Fabre, 17, Avenue Jean Moulin, Castres cedex, FranceAP-HP, Hôpital Européen Georges Pompidou, Service d'Hématologie Biologique, Paris, France
| | - R Létienne
- Inserm UMR S 765, Faculté de Pharmacie, Paris, FranceUniversité Paris Descartes, Sorbonne Paris Cité, Paris, FranceCentre de Recherche Pierre Fabre, 17, Avenue Jean Moulin, Castres cedex, FranceAP-HP, Hôpital Européen Georges Pompidou, Service d'Hématologie Biologique, Paris, France
| | - T Bourbon
- Inserm UMR S 765, Faculté de Pharmacie, Paris, FranceUniversité Paris Descartes, Sorbonne Paris Cité, Paris, FranceCentre de Recherche Pierre Fabre, 17, Avenue Jean Moulin, Castres cedex, FranceAP-HP, Hôpital Européen Georges Pompidou, Service d'Hématologie Biologique, Paris, France
| | - F Grelac
- Inserm UMR S 765, Faculté de Pharmacie, Paris, FranceUniversité Paris Descartes, Sorbonne Paris Cité, Paris, FranceCentre de Recherche Pierre Fabre, 17, Avenue Jean Moulin, Castres cedex, FranceAP-HP, Hôpital Européen Georges Pompidou, Service d'Hématologie Biologique, Paris, France
| | - B Le Grand
- Inserm UMR S 765, Faculté de Pharmacie, Paris, FranceUniversité Paris Descartes, Sorbonne Paris Cité, Paris, FranceCentre de Recherche Pierre Fabre, 17, Avenue Jean Moulin, Castres cedex, FranceAP-HP, Hôpital Européen Georges Pompidou, Service d'Hématologie Biologique, Paris, France
| | - C Bachelot-Loza
- Inserm UMR S 765, Faculté de Pharmacie, Paris, FranceUniversité Paris Descartes, Sorbonne Paris Cité, Paris, FranceCentre de Recherche Pierre Fabre, 17, Avenue Jean Moulin, Castres cedex, FranceAP-HP, Hôpital Européen Georges Pompidou, Service d'Hématologie Biologique, Paris, France
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Joubert J, Preux PM, Dumas M. Prévention des AVC en Afrique : focus sur les facteurs de risque majeurs. Rev Neurol (Paris) 2012. [DOI: 10.1016/j.neurol.2012.01.406] [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: 10/28/2022]
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Albert ES, Bec JM, Desmadryl G, Chekroud K, Travo C, Gaboyard S, Bardin F, Marc I, Dumas M, Lenaers G, Hamel C, Muller A, Chabbert C. TRPV4 channels mediate the infrared laser-evoked response in sensory neurons. J Neurophysiol 2012; 107:3227-34. [PMID: 22442563 DOI: 10.1152/jn.00424.2011] [Citation(s) in RCA: 132] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Infrared laser irradiation has been established as an appropriate stimulus for primary sensory neurons under conditions where sensory receptor cells are impaired or lost. Yet, development of clinical applications has been impeded by lack of information about the molecular mechanisms underlying the laser-induced neural response. Here, we directly address this question through pharmacological characterization of the biological response evoked by midinfrared irradiation of isolated retinal and vestibular ganglion cells from rodents. Whole cell patch-clamp recordings reveal that both voltage-gated calcium and sodium channels contribute to the laser-evoked neuronal voltage variations (LEVV). In addition, selective blockade of the LEVV by micromolar concentrations of ruthenium red and RN 1734 identifies thermosensitive transient receptor potential vanilloid channels as the primary effectors of the chain reaction triggered by midinfrared laser irradiation. These results have the potential to facilitate greatly the design of future prosthetic devices aimed at restoring neurosensory capacities in disabled patients.
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Affiliation(s)
- E S Albert
- U-1051, INSERM Institut des Neurosciences de Montpellier, Montpellier, France.
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Dumas M. Éditorial. Rev Neurol (Paris) 2012; 168:207-9. [DOI: 10.1016/j.neurol.2011.12.002] [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] [Received: 03/22/2011] [Accepted: 12/06/2011] [Indexed: 11/16/2022]
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Cremonini C, Dumas M, Pannuti C, Neto J, Cavalcanti M, Lima L. Assessment of linear measurements of bone for implant sites in the presence of metallic artefacts using cone beam computed tomography and multislice computed tomography. Int J Oral Maxillofac Surg 2011; 40:845-50. [DOI: 10.1016/j.ijom.2011.04.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2010] [Revised: 02/14/2011] [Accepted: 04/21/2011] [Indexed: 01/14/2023]
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Abstract
Abstract
Rat isolated perfused lungs (Sprague-Dawley rats, n = 20) were studied to compare the pulmonary uptake of a new anthracycline, tetrahydropyranyl-doxorubicin (THP-DXR) with that of doxorubicin (DXR). Lung perfusions were initiated with a constituted medium containing either drug at concentrations of 1, 10 or 100 μm. Lungs were perfused by recirculation for 60 min. Thirteen perfusate samples were collected over 60 min and subjected to HPLC for assay. The perfusate concentration of THP-DXR decreased to 24 ± 5% of the initial concentration and to 8 ± 2%, 20 and 60 min after the beginning of the infusion, respectively. Corresponding values for DXR were 77 ± 16 and 52 ± 15%, respectively (P < 0·05). During the THP-DXR perfusion, the area under the perfusate concentration vs time curve (AUC) was decreased to one-third and the clearance was increased 3-fold (P < 0·05). The pulmonary concentration of THP-DXR reached 0·032 ± 0·01 μmol g−1 60 min after the beginning of a perfusion of 1 μm of the drug. This concentration increased to 0·379 ± 0·11 μmol g−1 when the initial dose concentration was 10 μm. Corresponding lung concentrations for DXR were 0·013 ± 0·001 and 0·150 ± 0·04 μmol g−1, respectively (P < 0·05). The perfusate concentration/initial concentration ratio decreased by the same amount whether a 1 or 10 μm initial concentration of either drug was used. An initial concentration of 100 μm of THP-DXR, unlike DXR, consistently induced oedema in the perfused lung. No metabolite of either drug was revealed during the course of our study. These findings suggest: (1) a higher lung affinity for THP-DXR; (2) a correlation between lung uptake and dose consistent with a passive diffusion transport mechanism for both drugs; (3) a higher acute toxicity induced by THP-DXR; (4) the absence of metabolic activity in the lung with regards to both anthracyclines.
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Affiliation(s)
- M Dumas
- Département d'Informatique Médicale, Faculté de Médecine, Dijon, France
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Mbelesso P, Koona- koona A, Mbadingai S, Gresenguet G, Kounda- gboumbi C, Guezza D, Bella J, Dumas M. Histoire du foyer de la trypanosomose humaine africaine de nola en republique centrafricaine, de 1971 à 2004. African Journal of Neurological Sciences 2010. [DOI: 10.4314/ajns.v27i2.55091] [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: 11/17/2022]
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Dalmay F, Bhalla D, Nicoletti A, Cabrera-Gomez JA, Cabre P, Ruiz F, Druet-Cabanac M, Dumas M, Preux PM. Multiple sclerosis and solar exposure before the age of 15 years: case-control study in Cuba, Martinique and Sicily. Mult Scler 2010; 16:899-908. [PMID: 20463038 DOI: 10.1177/1352458510366856] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Few studies report a protective role of childhood solar exposure to multiple sclerosis. Our objective was to confirm the protective role of childhood solar exposure in multiple sclerosis in Cuba, Martinique and Sicily. This was a matched case- control study, and cases met Poser criteria for clinically, laboratory (definite, probable) multiple sclerosis. Controls were resident population, without neurological disorder, living close to cases (within 100 km), matched for sex, age (+/-5 years), residence before age 15. We recruited 551 subjects during a 1-year period (193 cases, Cuba n = 95, Sicily n = 50, Martinique n = 48; 358 controls). Some (89%) met definite clinical multiple sclerosis criteria (relapsing remitting form (with and without sequel) (74%), secondary progressive (21%), primary progressive (5%)). Odds ratios in a uni-variate analysis were: family history of multiple sclerosis (5.1) and autoimmune disorder (4.0); wearing shirt (3.5), hat (2.7), pants (2.4); sun exposure causing sunburn (1.8); sun exposure duration (1 h more/day; weekends 0.91, weekdays 0.86); bare-chested (0.6); water sports (0.2). Independent factors in the multivariate analysis were family history of multiple sclerosis (4.8 (1.50-15.10)), wearing pants under sunlight (1.9 (1.10-3.20)), sun exposure duration (1 h more/ day, weekdays 0.90 (0.85-0.98), weekends 0.93 (0.87-0.99)), water sports (0.23 (0.13-0.40)). We conclude that outdoor leisure activities in addition to sun exposure reports are associated with a reduced multiple sclerosis risk, with evidence of dose response.
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Affiliation(s)
- F Dalmay
- Université de Limoges, IFR 145 GEIST, Institut de Neurologie Tropicale, Limoges, France
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Lirussi F, O'Brien M, Wendremaire M, Goirand F, Sagot P, Dumas M, Morrison JJ, Bardou M. SAR150640, a selective beta3-adrenoceptor agonist, prevents human myometrial remodelling and activation of matrix metalloproteinase in an in vitro model of chorioamnionitis. Br J Pharmacol 2010; 159:1354-66. [PMID: 20136828 DOI: 10.1111/j.1476-5381.2009.00616.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND AND PURPOSE The uterine pathophysiology underlying inflammatory conditions such as chorioamnionitis remains largely unclear. As we have shown that beta(3)-adrenoceptors act as regulators of myometrial inflammation, we wanted to investigate the potential role of beta(3)-adrenoceptors in preventing uterine remodelling induced by inflammation. EXPERIMENTAL APPROACH The consequences of human chorioamnionitis on myometrial remodelling were characterized by Sirius Red staining and metalloproteinase (MMP) expression, and compared with the effects of incubating human myometrial samples with Escherichia coli lipopolysaccharide (LPS) in vitro. We also assessed the effect of SAR150640, a selective beta(3)-adrenoceptor agonist, on the production and activity of MMPs. KEY RESULTS Chorioamnionitis was associated with a 46% decrease in total collagen, as well as over-expression of MMP2 (+61%) and MMP9 (+84%); both effects were reproduced by incubation with LPS (10 microg x mL(-1), 48 h). LPS-induced over-expression of MMP2 and MMP9 in normal human myometrium was paralleled by an overactivity of the proteins. Both over-expression and overactivity were prevented by the beta(3)-adrenoceptor agonist SAR150640 in a concentration-dependent manner. SAR150640, by itself, did not exhibit any effect on MMP production in control tissues. CONCLUSIONS AND IMPLICATIONS This study shows that inflammation was associated with an intense remodelling of human myometrium, a process likely to be explained by MMP activation. Our study emphasizes the potential therapeutic relevance of beta(3)-adrenoceptor agonists to the treatment of preterm labour and other uterine inflammatory conditions.
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Affiliation(s)
- F Lirussi
- Centre d'Investigations Cliniques plurithématique 803 (INSERM CIC-P 803), Dijon, France
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Dumas M, Preux PM, Sagui E. [Neurology in developing countries]. Med Trop (Mars) 2009; 69:5-6. [PMID: 19499722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
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Smith-Norowitz T, Dumas M, Hassanain E, Norowitz K, Kohlhoff S, Joks R, Silverberg J, Chice S, Liao K, Nowakowski M. Increases In CD25 + T Cell Numbers In Peripheral Blood Of Children With Allergic Asthma Correlate With Measures Of Airway Obstruction, But Not Serum IgE Levels. J Allergy Clin Immunol 2009. [DOI: 10.1016/j.jaci.2008.12.461] [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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Dumas M, Langle S, Noblesse E, Bonnet-Duquennoy M, Pelle de Queral D, Tadokoro T, Bonté F. Histological variation of Japanese skin with aging. Int J Cosmet Sci 2008. [DOI: 10.1111/j.1467-2494.2004.00254_7.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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