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Fakih A, Tannous R, Lajnef M, Seneschal J, Andreu N, Tran VT, Ezzedine K. Stigma in vitiligo: associated factors and severity strata of the Patient Unique Stigmatization Holistic tool in Dermatology (PUSH-D) score. Br J Dermatol 2024; 190:712-717. [PMID: 38234050 DOI: 10.1093/bjd/ljae020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 01/11/2024] [Accepted: 01/13/2024] [Indexed: 01/19/2024]
Abstract
BACKGROUND Vitiligo is the most common cause of skin depigmentation worldwide. Patients with vitiligo may experience stigma and this needs to be addressed. OBJECTIVES To evaluate stigma in patients with vitiligo, search for associated factors and establish severity strata for the Patient Unique Stigmatization Holistic tool in Dermatology (PUSH-D) for patients with vitiligo. METHODS We conducted a cross-sectional study in ComPaRe Vitiligo, an e-cohort of adult patients with vitiligo. Stigmatization was assessed using the PUSH-D, a recently validated dermatology-specific stigmatization assessment tool. We conducted univariate and multivariable linear regression to identify patient and disease factors associated with the stigmatization. We used an anchor-based approach to define severity strata for the PUSH-D. RESULTS In total, 318 patients participated (mean age 49.7 years; 73.9% women). Fitzpatrick skin phototype IV-VI, severe facial involvement (high Self-Assessment Vitiligo Extent Score of the face) and depression (high Patient Health Questionnaire-9 score) were positively -associated with a higher stigmatization score, although this association was weak [r = 0.24 (P < 0.001) and r = 0.30 (P < 0.001), respectively]. PUSH-D cutoff values that best discriminated patients with high and low stigma, as defined by the anchor question, were 13 and 23 (κ = 0.622, 95% confidence interval 0.53-0.71). CONCLUSIONS Our study is the first to use a skin-specific stigmatization tool to assess stigma in patients with vitiligo. Creating strata helps to better interpret the PUSH-D in daily practice and may facilitate its use in clinical trials.
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Affiliation(s)
- Ali Fakih
- Department of Dermatology, Hôpital Nord, Centre Hospitalier Universitaire, Université Jean Monnet, Saint Etienne, France
| | - Rim Tannous
- Department of Dermatology, Hôpital Henri Mondor, Université Paris-Est Créteil Val de Marne-Université Paris, Paris, France
| | - Mohamed Lajnef
- Inserm U955 IMRB, Translational Neuropsychiatry Laboratory and Paris-Est Créteil University, Créteil, France
| | - Julien Seneschal
- Department of Dermatology, National Reference Center for Rare Skin Disorders, Hôpital Saint André, Bordeaux, France
| | - Nicolas Andreu
- Department of Dermatology, National Reference Center for Rare Skin Disorders, Hôpital Saint André, Bordeaux, France
| | - Viet-Thi Tran
- Center for Clinical Epidemiology, Hôtel-Dieu Hospital (AP-HP), Paris, France
- Centre de Recherche Épidémiologie et Statistiques (CRESS), Université de Paris, INSERM UMR1153, Paris, France
| | - Khaled Ezzedine
- Department of Dermatology, Hôpital Henri Mondor, Université Paris-Est Créteil Val de Marne-Université Paris, Paris, France
- EpidermE, Université Paris-Est Créteil (UPEC), Créteil, France
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Guyon M, Merhi R, Andreu N, Boniface K, Seneschal J. Efficacy and safety of the combination of steroid pulse therapy with methotrexate for vitiligo: A pilot retrospective case series. J Eur Acad Dermatol Venereol 2023; 37:2264-2266. [PMID: 37561929 DOI: 10.1111/jdv.19402] [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: 03/25/2023] [Accepted: 08/02/2023] [Indexed: 08/12/2023]
Affiliation(s)
- Mathilde Guyon
- Department of Dermatology and Pediatric Dermatology, National Reference Center for Rare Skin disorders, Hôpital Saint-André, Bordeaux, France
| | - Ribal Merhi
- Department of Dermatology and Pediatric Dermatology, National Reference Center for Rare Skin disorders, Hôpital Saint-André, Bordeaux, France
- CNRS, Immuno ConcEpT, UMR 5164, Univ. Bordeaux, Bordeaux, France
| | - Nicolas Andreu
- Department of Dermatology and Pediatric Dermatology, National Reference Center for Rare Skin disorders, Hôpital Saint-André, Bordeaux, France
| | - Katia Boniface
- CNRS, Immuno ConcEpT, UMR 5164, Univ. Bordeaux, Bordeaux, France
| | - Julien Seneschal
- Department of Dermatology and Pediatric Dermatology, National Reference Center for Rare Skin disorders, Hôpital Saint-André, Bordeaux, France
- CNRS, Immuno ConcEpT, UMR 5164, Univ. Bordeaux, Bordeaux, France
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Merhi R, Canu D, Barnetche T, Duchez E, Gey A, Andreu N, Taieb A, Boniface K, Seneschal J. Assessment of VASI, Facial-VASI and VES scores using standardized photography of vitiligo. Br J Dermatol 2022; 187:422-424. [PMID: 35289925 DOI: 10.1111/bjd.21246] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 03/07/2022] [Accepted: 03/11/2022] [Indexed: 11/27/2022]
Affiliation(s)
- Ribal Merhi
- Department of Dermatology and Pediatric Dermatology; National Reference Center for Rare Skin disorders, Hôpital Saint-André, Bordeaux, France
| | - Dorine Canu
- Department of Dermatology and Pediatric Dermatology; National Reference Center for Rare Skin disorders, Hôpital Saint-André, Bordeaux, France
| | - Thomas Barnetche
- Department of Rheumatology, National Reference Center for Severe Systemic Autoimmune Diseases, FHU ACRONIM, Pellegrin Hospital, CHU de Bordeaux
| | - Elodie Duchez
- Department of Dermatology and Pediatric Dermatology; National Reference Center for Rare Skin disorders, Hôpital Saint-André, Bordeaux, France
| | - Aurélia Gey
- Department of Dermatology and Pediatric Dermatology; National Reference Center for Rare Skin disorders, Hôpital Saint-André, Bordeaux, France
| | - Nicolas Andreu
- Department of Dermatology and Pediatric Dermatology; National Reference Center for Rare Skin disorders, Hôpital Saint-André, Bordeaux, France
| | - Alain Taieb
- Univ. Bordeaux, INSERM, BMGIC, U1035, F-33000, Bordeaux, France
| | - Katia Boniface
- Univ. Bordeaux, INSERM, BMGIC, U1035, F-33000, Bordeaux, France
| | - Julien Seneschal
- Department of Dermatology and Pediatric Dermatology; National Reference Center for Rare Skin disorders, Hôpital Saint-André, Bordeaux, France.,Univ. Bordeaux, INSERM, BMGIC, U1035, F-33000, Bordeaux, France
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Dousset L, Pacaud A, Barnetche T, Kostine M, Dutriaux C, Pham-Ledard A, Beylot-Barry M, Gérard E, Prey S, Andreu N, Boniface K, Seneschal J. Analysis of tumor response and clinical factors associated with vitiligo in patients receiving anti-programmed cell death-1 therapies for melanoma: A cross-sectional study. JAAD Int 2021; 5:112-120. [PMID: 34712997 PMCID: PMC8529074 DOI: 10.1016/j.jdin.2021.09.002] [Citation(s) in RCA: 10] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/10/2021] [Indexed: 12/18/2022] Open
Abstract
Background Clinical factors associated with vitiligo in patients receiving anti–programmed cell death-1 (PD-1) remain unknown. Objective To better characterize the occurrence of vitiligo in patients receiving anti–PD-1. Methods The present single-center ambispective cohort study included patients with melanoma treated with anti–PD-1. Progression-free survival, overall survival, and objective tumor response were compared between patients with and those without vitiligo using Kaplan-Meier curves and the log-rank test. Demographic and clinical factors associated with vitiligo were evaluated using multivariate logistic regression. Results Of the 457 patients included in the study, vitiligo developed in 85 patients. The clinical presentation of vitiligo consisted of the presence of ovalar and multiple flecked white macules, mainly located on chronic sun-exposed areas. The presence of vitiligo was associated with a significant improvement in overall survival and progression-free survival (P < .001). A Cox proportional hazards model estimation demonstrated markedly improved survival in patients with vitiligo compared with those without vitiligo (aHR [overall survival], 0.20; 95% CI, 0.12-0.33; P < .001; and aHR [progression-free survival], 0.33; 95% CI, 0.23-0.47; P < .001). In the multivariate logistic regression analyses, men showed an independent increased risk of the development of vitiligo (odds ratio, 1.66). In contrast, the presence of pulmonary metastases was found to be an independent factor associated with a reduced risk of the development of vitiligo (odds ratio, 0.50). Limitations Single-center ambispective cohort. Conclusion Vitiligo in patients receiving anti–PD-1 for advanced melanoma is associated with a better outcome. A gender effect associated with the development of vitiligo will need further investigation.
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Affiliation(s)
- Léa Dousset
- Department of Dermatology, National Centre for Rare Skin Disorders, University Hospital of Bordeaux, Bordeaux, France
| | - Alize Pacaud
- Department of Dermatology, National Centre for Rare Skin Disorders, University Hospital of Bordeaux, Bordeaux, France
| | - Thomas Barnetche
- Department of Rheumatology, National Reference Center for Severe Systemic Autoimmune Diseases, FHU ACRONIM, Pellegrin Hospital, University Hospital of Bordeaux, Bordeaux, France
| | - Marie Kostine
- Department of Rheumatology, National Reference Center for Severe Systemic Autoimmune Diseases, FHU ACRONIM, Pellegrin Hospital, University Hospital of Bordeaux, Bordeaux, France
| | - Caroline Dutriaux
- Department of Dermatology, National Centre for Rare Skin Disorders, University Hospital of Bordeaux, Bordeaux, France.,U1035 INSERM, Biotherapy of Genetic Diseases, Inflammatory Disorders and Cancers, Bordeaux University, Bordeaux, France
| | - Anne Pham-Ledard
- Department of Dermatology, National Centre for Rare Skin Disorders, University Hospital of Bordeaux, Bordeaux, France
| | - Marie Beylot-Barry
- Department of Dermatology, National Centre for Rare Skin Disorders, University Hospital of Bordeaux, Bordeaux, France
| | - Emilie Gérard
- Department of Dermatology, National Centre for Rare Skin Disorders, University Hospital of Bordeaux, Bordeaux, France
| | - Sorilla Prey
- Department of Dermatology, National Centre for Rare Skin Disorders, University Hospital of Bordeaux, Bordeaux, France.,U1035 INSERM, Biotherapy of Genetic Diseases, Inflammatory Disorders and Cancers, Bordeaux University, Bordeaux, France
| | - Nicolas Andreu
- Department of Dermatology, National Centre for Rare Skin Disorders, University Hospital of Bordeaux, Bordeaux, France
| | - Katia Boniface
- U1035 INSERM, Biotherapy of Genetic Diseases, Inflammatory Disorders and Cancers, Bordeaux University, Bordeaux, France
| | - Julien Seneschal
- Department of Dermatology, National Centre for Rare Skin Disorders, University Hospital of Bordeaux, Bordeaux, France.,U1035 INSERM, Biotherapy of Genetic Diseases, Inflammatory Disorders and Cancers, Bordeaux University, Bordeaux, France
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Shourick J, Seneschal J, Andreu N, Meurant JM, Pane I, Ravaud P, Tran VT, Ezzedine K. Vitiligo Treatment Impact score (VITs): development and validation of a vitiligo burden of treatment questionnaire using the ComPaRe Vitiligo e-cohort. J Eur Acad Dermatol Venereol 2021; 36:279-285. [PMID: 34657353 DOI: 10.1111/jdv.17742] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 09/30/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND Vitiligo management is challenging and requires long-term adherence of patients who often complain of the burden associated with treatment. OBJECTIVE To develop and validate a patient reported measurement of the burden of treatment in vitiligo. METHODS The study was nested within the ComPaRe Vitiligo e-cohort, an online e-cohort of vitiligo patients in France. Items were derived from a literature review and from the qualitative analysis of a survey using open-ended questions of 204 patients with Vitiligo. Construct validity of the resulting instrument was assessed by comparing the instrument's score to the Dermatology Life Quality Index (DLQI), Vitiligo Impact Patient score (VIPs) and Treatment Burden Questionnaire (TBQ) scores. Reliability was assessed by test-retest with 15 ± 10 days of interval between both assessments. RESULTS In total, 343 adult participants participated in the validation of the Vitiligo Treatment Impact score (VITs). The VITs is a 19-item questionnaire assessing the burden of treatment in patients with vitiligo with results suggesting four domains ('Finding a doctor', 'Phototherapy', 'Topical treatment' and 'Impact on outdoor activities and photoprotection'). The VITs total score was well correlated with the DLQI, VIP and TBQ scores. Agreement between test and retest was good (ICC 0.705, 95% CI 0.491-0.818). CONCLUSIONS We developed a patient reported measurement of the burden of treatment in vitiligo with good psychometric properties.
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Affiliation(s)
- J Shourick
- Service de Dermatologie, AP-HP, Hôpital Henri-Mondor, Créteil, France.,EpiDermE - Epidemiology in Dermatology and Evaluation of Therapeutics, Université Paris-Est Créteil, Creteil, France
| | - J Seneschal
- Service de Dermatologie, Centre de Référence des Maladies Rares de la Peau, Hôpital Saint André, CHU de Bordeaux, Bordeaux, France.,INSERM, BMGIC, U1035, Univ. Bordeaux, Bordeaux, France
| | - N Andreu
- Service de Dermatologie, Centre de Référence des Maladies Rares de la Peau, Hôpital Saint André, CHU de Bordeaux, Bordeaux, France
| | - J-M Meurant
- Association Française du Vitiligo, Paris, France
| | - I Pane
- Centre de Recherche Épidémiologie et StatistiqueS (CRESS - Université de Paris, INSERM UMR1153), Paris, France.,Centre d'épidémiologie clinique - Hôpital Hôtel-Dieu (AP-HP), Paris, France
| | - P Ravaud
- Centre de Recherche Épidémiologie et StatistiqueS (CRESS - Université de Paris, INSERM UMR1153), Paris, France.,Centre d'épidémiologie clinique - Hôpital Hôtel-Dieu (AP-HP), Paris, France
| | - V-T Tran
- Centre de Recherche Épidémiologie et StatistiqueS (CRESS - Université de Paris, INSERM UMR1153), Paris, France.,Centre d'épidémiologie clinique - Hôpital Hôtel-Dieu (AP-HP), Paris, France
| | - K Ezzedine
- Service de Dermatologie, AP-HP, Hôpital Henri-Mondor, Créteil, France.,EpiDermE - Epidemiology in Dermatology and Evaluation of Therapeutics, Université Paris-Est Créteil, Creteil, France
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6
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Canu D, Shourick J, Andreu N, Gey A, Ballanger-Désolneux F, Barailler H, Boniface K, Ezzedine K, Seneschal J. Demographic and clinical characteristics of patients with both psoriasis and vitiligo in a cohort of vitiligo patients: a cross-sectional study. J Eur Acad Dermatol Venereol 2021; 35:e676-e679. [PMID: 34013570 DOI: 10.1111/jdv.17383] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- D Canu
- Department of Dermatology, National Reference Center for Rare Skin Disorders, Hôpital Saint-André, CHU de Bordeaux, Bordeaux, France
| | - J Shourick
- Department of Dermatology, Hôpital Larrey, CHU de Toulouse, Toulouse, France
| | - N Andreu
- Department of Dermatology, National Reference Center for Rare Skin Disorders, Hôpital Saint-André, CHU de Bordeaux, Bordeaux, France
| | - A Gey
- Department of Dermatology, National Reference Center for Rare Skin Disorders, Hôpital Saint-André, CHU de Bordeaux, Bordeaux, France
| | - F Ballanger-Désolneux
- Department of Dermatology, National Reference Center for Rare Skin Disorders, Hôpital Saint-André, CHU de Bordeaux, Bordeaux, France
| | - H Barailler
- Department of Dermatology, National Reference Center for Rare Skin Disorders, Hôpital Saint-André, CHU de Bordeaux, Bordeaux, France
| | - K Boniface
- INSERM, BMGIC, U1035, Immuno-Dermatology, Université Bordeaux, Bordeaux, France
| | - K Ezzedine
- Department of Dermatology, Henri Mondor University Hospital, Créteil, France.,EpidermE, Université Paris-Est Créteil, UPEC, Créteil, France
| | - J Seneschal
- Department of Dermatology, National Reference Center for Rare Skin Disorders, Hôpital Saint-André, CHU de Bordeaux, Bordeaux, France.,INSERM, BMGIC, U1035, Immuno-Dermatology, Université Bordeaux, Bordeaux, France
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Condamina M, Shourick J, Seneschal J, Sbidian E, Andreu N, Pane I, Ravaud P, Tran VT, Ezzedine K. Factors associated with perceived stress in patients with vitiligo in the ComPaRe e-cohort. J Am Acad Dermatol 2021; 86:696-698. [PMID: 33684495 DOI: 10.1016/j.jaad.2021.02.083] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 02/20/2021] [Accepted: 02/27/2021] [Indexed: 10/22/2022]
Affiliation(s)
- Morgane Condamina
- Service de Dermatologie-Vénéréologie, CHU Robert Debré, Reims, France
| | - Jason Shourick
- AP-HP, Hôpital Henri-Mondor, Service de Dermatologie, Créteil, France; Université Paris-Est Créteil, EpiDermE-Epidemiology in Dermatology and Evaluation of Therapeutics, Creteil, France
| | - Julien Seneschal
- Service de Dermatologie, Centre de Référence des Maladies Rares de la Peau, Hôpital Saint André, CHU de Bordeaux, Bordeaux, France; INSERM U1035 Biothérapie des Maladies Génétiques Inflammatoires et Cancers, Immuno-Dermatologie ATIP AVENIR, Université de Bordeaux, Bordeaux, France
| | - Emilie Sbidian
- AP-HP, Hôpital Henri-Mondor, Service de Dermatologie, Créteil, France; Université Paris-Est Créteil, EpiDermE-Epidemiology in Dermatology and Evaluation of Therapeutics, Creteil, France
| | - Nicolas Andreu
- Service de Dermatologie, Centre de Référence des Maladies Rares de la Peau, Hôpital Saint André, CHU de Bordeaux, Bordeaux, France
| | - Isabelle Pane
- Centre de Recherche Épidémiologie et StatistiqueS (CRESS-Université de Paris, INSERM UMR1153), Paris, France; Centre d'épidémiologie clinique-Hôpital Hôtel-Dieu (AP-HP), Paris, France
| | - Philippe Ravaud
- Université Paris-Est Créteil, EpiDermE-Epidemiology in Dermatology and Evaluation of Therapeutics, Creteil, France; Centre d'épidémiologie clinique-Hôpital Hôtel-Dieu (AP-HP), Paris, France
| | - Viet-Thi Tran
- Centre de Recherche Épidémiologie et StatistiqueS (CRESS-Université de Paris, INSERM UMR1153), Paris, France; Centre d'épidémiologie clinique-Hôpital Hôtel-Dieu (AP-HP), Paris, France
| | - Khaled Ezzedine
- AP-HP, Hôpital Henri-Mondor, Service de Dermatologie, Créteil, France; Université Paris-Est Créteil, EpiDermE-Epidemiology in Dermatology and Evaluation of Therapeutics, Creteil, France.
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Seneschal J, Duplaine A, Maillard H, Passeron T, Andreu N, Lassalle R, Favary C, Droitcourt C, Taïeb A, Ezzedine K. Efficacy and Safety of Tacrolimus 0.1% for the Treatment of Facial Vitiligo: A Multicenter Randomized, Double-Blinded, Vehicle-Controlled Study. J Invest Dermatol 2021; 141:1728-1734. [PMID: 33549606 DOI: 10.1016/j.jid.2020.12.028] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 12/15/2020] [Accepted: 12/20/2020] [Indexed: 11/30/2022]
Abstract
BACKGROUND Topical calcineurin inhibitors are used off label in the treatment of vitiligo, and there is a lack of placebo-controlled, blinded studies to support their use. OBJECTIVE This study aimed to compare the efficacy of tacrolimus 0.1% ointment with that of the vehicle for repigmentation in adult patients with facial vitiligo. DESIGN This study was a 24-week multicenter randomized parallel double-blind study with a 24-week post-treatment follow-up extension. POPULATION Participants included were adult patients with recent facial vitiligo target lesions (<2 years) without changes in pigmentation or size over the previous 3 months. INTERVENTION Patients received either tacrolimus 0.1% ointment or vehicle twice daily. MAIN OUTCOMES AND MEASURES The primary outcome was a therapeutic success, defined as a change ≥75% in the repigmentation of the target lesion between baseline and week 24, measured by ImageJ software. Secondary outcome measures were a variation of the physicians' global assessment scores and patients' satisfaction scores, safety data, and the rate of relapse at week 48. RESULTS A total of 42 patients were included. Therapeutic success was achieved in 65% of tacrolimus-treated patients versus 0% of vehicle-treated patients at week 24 (P < 0.0001). Only 40% of relapse was observed at 48 weeks. CONCLUSIONS AND RELEVANCE Twice-daily tacrolimus 0.1% ointment showed superior efficacy to that of the vehicle through the 24 weeks of intervention and 24 weeks of follow-up in adult patients with facial vitiligo. TRIAL REGISTRATION This study was registered at ClinicalTrials.gov (identifier: NCT02466997).
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Affiliation(s)
- Julien Seneschal
- Department of Dermatology and Pediatric Dermatology, National Reference Center for Rare Skin disorders, Hôpital Saint-André, Bordeaux, France; INSERM U1035, Biotherapy of Genetic Diseases, Inflammatory Disorders and Cancers (BMGIC), Université de Bordeaux, Bordeaux, France
| | - Alexandra Duplaine
- Department of Dermatology and Pediatric Dermatology, National Reference Center for Rare Skin disorders, Hôpital Saint-André, Bordeaux, France
| | - Hervé Maillard
- Department of Dermatology, Centre Hospitalier - Le Mans, Le Mans, France
| | - Thierry Passeron
- Department of Dermatology, Centre Hospitalier Universitaire de Nice, Université Côte d'Azur, Nice, France
| | - Nicolas Andreu
- Department of Dermatology and Pediatric Dermatology, National Reference Center for Rare Skin disorders, Hôpital Saint-André, Bordeaux, France
| | - Régis Lassalle
- Bordeaux PharmacoEpi, INSERM CIC1401, Université de Bordeaux, Bordeaux, France
| | - Clélia Favary
- Bordeaux PharmacoEpi, INSERM CIC1401, Université de Bordeaux, Bordeaux, France
| | | | - Alain Taïeb
- Department of Dermatology and Pediatric Dermatology, National Reference Center for Rare Skin disorders, Hôpital Saint-André, Bordeaux, France
| | - Khaled Ezzedine
- Department of Dermatology, Henri Mondor University Hospital, Créteil, France; Epidemiology in Dermatology and Evaluation of Therapeutics (EpidermE), Université Paris-Est Créteil Val de Marne (UPEC), Créteil, France.
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Duplaine A, Andreu N, Maillard H, Droitcourt C, Passeron T, Seneschal J, Ezzedine K. VITAC : étude multicentrique randomisée évaluant l’efficacité du tacrolimus pommade 0,1 % versus placebo dans le vitiligo non-segmentaire du visage de l’adulte. Ann Dermatol Venereol 2020. [DOI: 10.1016/j.annder.2020.09.089] [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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10
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Merhi R, Andreu N, Gey A, Ballanger-Désolneux F, Boniface K, Seneschal J. Efficacité et tolérance du méthotrexate dans le vitiligo : étude rétrospective, monocentrique. Ann Dermatol Venereol 2020. [DOI: 10.1016/j.annder.2020.09.062] [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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Canu D, Andreu N, Darrigade AS, Ezzedine K, Seneschal J. Psoriasis et vitiligo : caractéristiques démographiques et cliniques de cette association. Ann Dermatol Venereol 2020. [DOI: 10.1016/j.annder.2020.09.316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Legrand A, Darrigade AS, Andreu N, Jacquemin C, Boniface K, Taïeb A, Seneschal J. Réponse d’une dermatite atopique et d’une pelade au dupilumab : faire d’une pierre, deux coups. Ann Dermatol Venereol 2018. [DOI: 10.1016/j.annder.2018.09.570] [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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13
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Darrigade AS, Legrand A, Andreu N, Jacquemin C, Boniface K, Taïeb A, Seneschal J. Dual efficacy of dupilumab in a patient with concomitant atopic dermatitis and alopecia areata. Br J Dermatol 2018; 179:534-536. [PMID: 29710431 DOI: 10.1111/bjd.16711] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- A-S Darrigade
- Department of Dermatology, National Reference Center for Rare Skin Diseases, Bordeaux University Hospitals, Bordeaux, France.,INSERM U1035, BMGIC, Immuno-Dermatology, ATIP-AVENIR, Bordeaux University, Bordeaux, France
| | - A Legrand
- Department of Dermatology, National Reference Center for Rare Skin Diseases, Bordeaux University Hospitals, Bordeaux, France
| | - N Andreu
- Department of Dermatology, National Reference Center for Rare Skin Diseases, Bordeaux University Hospitals, Bordeaux, France
| | - C Jacquemin
- INSERM U1035, BMGIC, Immuno-Dermatology, ATIP-AVENIR, Bordeaux University, Bordeaux, France
| | - K Boniface
- INSERM U1035, BMGIC, Immuno-Dermatology, ATIP-AVENIR, Bordeaux University, Bordeaux, France
| | - A Taïeb
- Department of Dermatology, National Reference Center for Rare Skin Diseases, Bordeaux University Hospitals, Bordeaux, France
| | - J Seneschal
- Department of Dermatology, National Reference Center for Rare Skin Diseases, Bordeaux University Hospitals, Bordeaux, France.,INSERM U1035, BMGIC, Immuno-Dermatology, ATIP-AVENIR, Bordeaux University, Bordeaux, France
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Andreu N, Flahaut D, Dedryvère R, Minvielle M, Martinez H, Gonbeau D. XPS investigation of surface reactivity of electrode materials: effect of the transition metal. ACS Appl Mater Interfaces 2015; 7:6629-6636. [PMID: 25751495 DOI: 10.1021/am5089764] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The role of the transition metal nature and Al2O3 coating on the surface reactivity of LiCoO2 and LiNi(1/3)Mn(1/3)Co(1/3)O2 (NMC) materials were studied by coupling chemisorption of gaseous probes molecules and X-ray photoelectron (XPS) spectroscopy. The XPS analyses have put in evidence the low reactivity of the LiMO2 materials toward basic gaseous probe (NH3). The reactivity toward SO2 gaseous probe is much larger (roughly more than 10 times) and strongly influenced by the nature of metal. Only one adsorption mode (redox process producing adsorbed sulfate species) was observed at the LiCoO2 surface, while NMC materials exhibit sulfate and sulfite species at the surface. On the basis of XPS analysis of bare materials and previous theoretical work, we propose that the acid-base adsorption mode involving the Ni(2+) cation is responsible for the sulfite species on the NMC surface. After Al2O3 coating, the surface reactivity was clearly decreasing for both LiCoO2 and NMC materials. In addition, for LiCoO2, the coating modifies the surface reactivity with the identification of both sulfate and sulfite species. This result is in line with a change in the adsorption mode from redox toward acid-base after Al/Co substitution. In the case of NMC materials, the coating induced a decrease of the sulfite species content at the surface. This phenomenon can be related to the cation mixing effect in the NMC.
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Affiliation(s)
- N Andreu
- †IPREM, Université de Pau, Hélioparc Pau Pyrénées, 2 av. Pierre Angot, 64053 cedex 9 Pau, France
| | - D Flahaut
- †IPREM, Université de Pau, Hélioparc Pau Pyrénées, 2 av. Pierre Angot, 64053 cedex 9 Pau, France
| | - R Dedryvère
- †IPREM, Université de Pau, Hélioparc Pau Pyrénées, 2 av. Pierre Angot, 64053 cedex 9 Pau, France
| | - M Minvielle
- ‡INL, Site Ecole Centrale de Lyon, Batiment F7, 36, Avenue Guy de Collongue, 69134 Ecully, France
| | - H Martinez
- †IPREM, Université de Pau, Hélioparc Pau Pyrénées, 2 av. Pierre Angot, 64053 cedex 9 Pau, France
| | - D Gonbeau
- †IPREM, Université de Pau, Hélioparc Pau Pyrénées, 2 av. Pierre Angot, 64053 cedex 9 Pau, France
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15
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Fouquet N, Ha C, Andreu N, Petit A, Roquelaure Y. Surveillance épidémiologique de la hernie discale opérée en 2007–2008 dans les Pays de la Loire. ARCH MAL PROF ENVIRO 2013. [DOI: 10.1016/j.admp.2013.09.027] [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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16
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Bouzillé G, Brossard T, Andreu N, Vasseur S, Lepoittevin L, Weil D. Implication du département d’information médicale du CHU d’Angers dans la préparation à la certification des comptes. Rev Epidemiol Sante Publique 2013. [DOI: 10.1016/j.respe.2013.01.070] [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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17
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Andreu N, Fouquet N, Ha C, Surer N, Lombrail P, Roquelaure Y. Surveillance épidémiologique des hernies discales opérées en lien avec l’activité professionnelle : études en région Pays de la Loire. Rev Epidemiol Sante Publique 2012. [DOI: 10.1016/j.respe.2011.12.037] [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] Open
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18
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Le T, Flahaut D, Martinez H, Andreu N, Gonbeau D, Pachoud E, Pelloquin D, Maignan A. The electronic structure of the CuRh1−xMgxO2 thermoelectric materials: An X-ray photoelectron spectroscopy study. J SOLID STATE CHEM 2011. [DOI: 10.1016/j.jssc.2011.07.005] [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] [Indexed: 11/24/2022]
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19
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Andreu N, Meyer F, Teuff GL, Lacombe L, Fradet Y, Tetu B. 7115 Prognostic value of cyclooxygenase-1 and cyclooxygenase-2 expressions in human renal cell carcinoma. EJC Suppl 2009. [DOI: 10.1016/s1359-6349(09)71448-x] [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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20
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Altafaj X, Ortiz-Abalia J, Fernández M, Potier MC, Laffaire J, Andreu N, Dierssen M, González-García C, Ceña V, Martí E, Fillat C. Increased NR2A expression and prolonged decay of NMDA-induced calcium transient in cerebellum of TgDyrk1A mice, a mouse model of Down syndrome. Neurobiol Dis 2008; 32:377-84. [PMID: 18773961 DOI: 10.1016/j.nbd.2008.07.024] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2008] [Revised: 07/24/2008] [Accepted: 07/29/2008] [Indexed: 12/16/2022] Open
Abstract
Transgenic mice overexpressing Dyrk1A (TgDyrk1A), a Down syndrome (DS) candidate gene, exhibit motor and cognitive alterations similar to those observed in DS individuals. To gain new insights into the molecular consequences of Dyrk1A overexpression underlying TgDyrk1A and possibly DS motor phenotypes, microarray studies were performed. Transcriptome analysis showed an upregulation of the NR2A subunit of the NMDA type of glutamate receptors in TgDyrk1A cerebellum. NR2A protein overexpression was also detected in TgDyrk1A cerebellar homogenates, in the synaptosome-enriched fraction and in TgDyrk1A primary cerebellar granular neuronal cultures (CGNs). In TgDyrk1A synaptosomes, calcium-imaging experiments showed a higher calcium uptake after NMDA stimulation. Similarly, NMDA administration promoted longer calcium transients in TgDyrk1A CGNs. Taken together, these results show that NMDA-induced calcium rise is altered in TgDyrk1A cerebellar neurons and indicate that calcium signaling is dysregulated in TgDyrk1A mice cerebella. These findings suggest that DYRK1A overexpression might contribute to the dysbalance in the excitatory transmission found in the cerebellum of DS individuals and DS mouse models.
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Affiliation(s)
- X Altafaj
- Programa Gens i Malatia, Centre de Regulació Genòmica-CRG, UPF, Parc de Recerca Biomèdica de Barcelona-PRBB, Barcelona, Spain
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21
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Segura J, Fillat C, Andreu D, Llop J, Millan O, de la Torre BG, Nikolovski Z, Gomez V, Andreu N, Pinyot A, Castelo R, Gispert JD, Pascual JA. Monitoring gene therapy by external imaging of mRNA: pilot study on murine erythropoietin. Ther Drug Monit 2007; 29:612-8. [PMID: 17898652 DOI: 10.1097/ftd.0b013e31811f3af6] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [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: 11/26/2022]
Abstract
Gene therapy is anticipated as being an important medical development. Essential to its effectiveness is the appropriate activity (protein expression) in the expected target cells. A noninvasive diagnostic procedure of successful gene expression will be of paramount importance to validate its use or its misuse (eg, sports gene doping). Externally detectable labeled oligonucleotide hybridizing with the messenger RNA generated by the transferred gene has been proposed as a possibility to monitor successful gene therapy. The authors selected the erythropoietin gene (Epo) for a pilot study on erythropoietin protein expression in mouse muscle. Oligonucleotides of peptide nucleic acid (PNA) type capable of antisense binding to unique murine Epo-mRNA sequences were synthesized by solid phase methods, and elongated at the N-terminus with the HIV Tat (48-60) cell penetrating peptide. They were labeled with fluorescence and radioactive tags to verify penetration and longer half-life properties in Epo gene transfected C2C12 mouse muscle cells as compared with corresponding wild-type cells. Downregulation of newly expressed erythropoietin protein in such cells additionally confirmed the penetration and hybridizing properties of the selected labeled oligonucleotide. I-labeled Tat-PNAs were intravenously injected into mice that had previously received the Epo gene into the right tibialis muscle by DNA electrotransfer. Preferential accumulation of radioactivity in the transferred limb as compared with the contralateral limb was ascertained, especially for I-Tat-CTA CGT AGA CCA CT (labeled Tat-PNA 1). This study provides experimental data to support the potential use of external noninvasive image detection to monitor gene therapy. The extension of the approach to more sensitive methods for whole-body external detection such as positron emission tomography appears feasible.
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Affiliation(s)
- J Segura
- Institut Municipal d'Investigació Mèdica IMIM-Hospital del Mar, Barcelona, Spain.
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22
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Andreu N, Roignot P, Cohen J, Sobel M, Pluot M, Piccioni F, Quantin C. D2-1 - Étude de la fiabilité de la télécytopathologie via LEDAMED pour le dépistage du cancer du col utérin au Cambodge. Rev Epidemiol Sante Publique 2006. [DOI: 10.1016/s0398-7620(06)76840-7] [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: 11/15/2022] Open
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23
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Carim-Todd L, Sumoy L, Andreu N, Estivill X, Escarceller M. Cloning, mapping and expression analysis of C15orf4, a novel human gene with homology to the yeast mitochondrial ribosomal protein Ym130 gene. DNA Seq 2002; 12:91-6. [PMID: 11761714 DOI: 10.3109/10425170109047561] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
We have identified C15orf4, a novel human gene showing homology to the yeast mitochondrial ribosomal protein YmL30. C15orf4 encodes a transcript of 1,006 nt with an ORF of 279 amino acids and a predicted protein size of 31.7 kDa. Expression of C15orf4 is enriched in testis. C15orf4 was positioned to chromosome 15q24 by radiation hybrid mapping. We have identified the C15orf4 mouse orthologue as well as homologues in other species.
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Affiliation(s)
- L Carim-Todd
- Medical and Molecular Genetics Center, Institut de Recerca Oncològica, Hospital Duran i Reynals, Avda Gran Via s/n, km 2,7 L'Hospitalet de Llobregat, 08907 Barcelona, Spain
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24
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Abstract
We describe PALML, a novel gene encoding a 551 amino acid protein with similarity to paralemmin and the paralemmin-like amino terminal domain of AKAP2, a protein kinase A anchor protein. PALML mRNA is expressed in many tissues and is most abundant in cardiac and skeletal muscle, while absent from brain and blood. Exogenously expressed PALML fusion protein has a widespread cytoplasmic localization, and it is excluded from the nucleus. Human PALML maps on human chromosome 1p21 (between D1S2767 and D1S223). SSCP-HD analysis of exonic sequences in patients with VUR (familial non-syndromic vesicoureteral reflux syndrome) excluded mutations in the PALML gene from causing this disease. PALML, paralemmin and AKAP2 share the presence of a conserved coiled coil region that may mediate protein interactions with shared partners. Based on its resemblance to paralemmin and AKAP2, PALML is hypothesized to be involved in regulating intracellular signaling and membrane-cytoskeletal interactions.
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MESH Headings
- Amino Acid Sequence
- Animals
- Blotting, Northern
- Blotting, Western
- COS Cells
- Chromosome Mapping
- Chromosomes, Human, Pair 1/genetics
- Cytoplasm/metabolism
- DNA, Complementary/chemistry
- DNA, Complementary/genetics
- Female
- Gene Expression
- Genes/genetics
- Humans
- Male
- Membrane Proteins/genetics
- Mice
- Molecular Sequence Data
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Recombinant Fusion Proteins/genetics
- Recombinant Fusion Proteins/metabolism
- Sequence Analysis, DNA
- Sequence Homology
- Sequence Homology, Amino Acid
- Tissue Distribution
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Affiliation(s)
- N Andreu
- Institut de Recerca Oncològica-IRO, Departament de Genètica Molecular, Hospital Duran i Reynals, Av. Gran Via s/n km 2,7, 08907 L'Hospitalet de Llobregat, Barcelona, Spain
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25
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Carim-Todd L, Sumoy L, Andreu N, Estivill X, Escarceller M. Identification of C15orf5, a heart-enriched transcript on chromosome 15q23-q24. DNA Sequence 2001; 12:67-9. [PMID: 11697146 DOI: 10.3109/10425170109042052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
We have isolated C15orf5, a novel human gene lacking homology to any known protein. The C15orf5 gene encodes a transcript of 1,519 nt with an ORF of 94 amino acids and a predicted protein size of 11.5 kDa. Northern blot analysis showed enhanced expression of C15orf5 in heart. C15orf5 was mapped to chromosome 15q23-q24 using the Stanford TNG4 Radiation Hybrid panel.
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Affiliation(s)
- L Carim-Todd
- Medical and Molecular Genetics Center, Institut de Recerca Oncològica, Hospital Duran i Reynals, Av. Gran Via s/n km 2,7 L'Hospitalet de Llobregat, 08907 Barcelona, Spain
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26
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Carim-Todd L, Sumoy L, Andreu N, Estivill X, Escarceller M. Identification and characterization of BTBD1, a novel BTB domain containing gene on human chromosome 15q24. Gene 2001; 262:275-81. [PMID: 11179693 DOI: 10.1016/s0378-1119(00)00513-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [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: 11/29/2022]
Abstract
Working within the EUROIMAGE full-length cDNA sequencing project we have isolated BTBD1, a novel human gene with a BTB/POZ domain. This motif is found in developmentally regulated zinc finger proteins and in the kelch family of actin-associated proteins, and is thought to mediate protein-protein interactions. The BTBD1 gene encodes a transcript of 3188 nt with an ORF of 482 amino acids and a predicted protein product size of 52.7 kDa. Northern blot analysis revealed an enhanced BTBD1 expression in heart and skeletal muscle. We have identified a paralogous BTBD1 counterpart gene on chromosome 19, BTBD2. BTBD1 was mapped to chromosome 15q24. Conservation of multiple pairs of genes between 15q24 and 19p13.3-p12 suggests their possible common chromosomal origin. We show the existence of the murine BTBD1 and BTBD2 orthologous genes, as well as the partial rat and bovine homologs.
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Affiliation(s)
- L Carim-Todd
- Medical and Molecular Genetics Center, Institut de Recerca Oncològica, Hospital Duran i Reynals, Av. Gran Via s/n km 2,7L'Hospitalet de Llobregat, 08907, Barcelona, Spain
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27
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Abstract
Pacsins are cytoplasmic adapter proteins with an N-terminal FHC, a central coiled coil, and a C-terminal SH3 domain and several potential phosphorylation sites. Two murine Pacsin genes have been reported to date: Pacsin 1 (equivalent to rat Syndapin I), and Pacsin 2 (like rat Syndapin II and chicken focal adhesion protein FAP52). Rat syndapins have been well characterized as part of a synapse dynamin-associated protein complex involved in endocytosis and actin dynamics. Here we describe PACSIN 3, a third member of the pacsin gene family in humans and mice, which encodes a 424 amino acid cytoplasmic protein and has a ubiquitously expressed mRNA. Intracellular distribution was assessed by overexpression of exogenous tagged pacsin 3 protein. In addition, we report the cDNA sequence of human PACSIN 1, a gene encoding a 444 amino acid protein and its chromosome assignment to 6p21. PACSIN 1 mRNA is most abundant in brain, and is also present in heart, pancreas and liver. The close sequence conservation between the three pacsin gene products suggests they could be performing similar functions participating in the different tissues where these are expressed.
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Affiliation(s)
- L Sumoy
- Institut de Recerca Oncològica-IRO, Departament de Genètica Molecular, Hospital Duran i Reynals, Av. Gran Via s/n km 2,7, 08907 L'Hospitalet de Llobregat, Barcelona, Spain.
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28
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Armario P, Hernández del Rey R, Martín-Baranera M, Almendros M, Andreu N, Ruigómez J, Ceresuela L, Pardell H. Ausencia de relación entre insulinemia y afectación orgánica en hipertensos no tratados grados 1-2. Hipertensión y Riesgo Vascular 2001. [DOI: 10.1016/s1889-1837(01)71792-8] [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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29
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Bérard A, Andreu N, Tétrault J, Niyonsenga T, Myhal D. Reliability of Chalmers' scale to assess quality in meta-analyses on pharmacological treatments for osteoporosis. Ann Epidemiol 2000; 10:498-503. [PMID: 11118928 DOI: 10.1016/s1047-2797(00)00069-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [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: 11/23/2022]
Abstract
PURPOSE This study estimates the inter-rater and test-retest reliability of Chalmers' quality score scale in the context of bone mass loss and fracture rate in postmenopausal women. METHODS An exhaustive literature search was performed on Medline to locate clinical trials studying the effect of medication use on bone mass loss and fracture rate in postmenopausal women. Twenty articles were randomly selected and four raters independently assessed the quality of each article with Chalmers' scale. Among the 20 articles, 10 were blinded on authors' names, journal, year of publication and source of funding. Raters were also asked to assess all 20 articles one more time, two months after the first evaluation. Intraclass (ICC) and test-retest correlation coefficients were calculated. RESULTS The overall inter-rater ICC was 0.66 [0.55, 0.79](95%). The overall test-retest reliability of Chalmers' scale was 0.81 [0.67, 0. 98](95%). When ratings were stratified according to articles' blinding status, blinded assessments generated a smaller inter-rater ICC than non-blinded assessments: 0.30 [0.17, 0.53](95%) vs. 0.80 [0. 71, 0.90](95%). In addition, analyzing sub-scales separately generated different estimates of reliability. CONCLUSIONS This study shows that the reliability of the quality scale developed by Chalmers substantially varies between sub-scales, and is highly dependent on articles' blinding status. The possibility of bias in rating non-blinded articles can not be ruled out. The reliability of the scale can also be dependent on the outcome studied.
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Affiliation(s)
- A Bérard
- Harvard Medical School, Brigham and Women's Hospital, Division of Pharmacoepidemiology and Pharmacoeconomics, Boston, MA, USA.
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30
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Carim L, Sumoy L, Andreu N, Estivill X, Escarceller M. Cloning, mapping and expression analysis of VPS33B, the human orthologue of rat Vps33b. Cytogenet Cell Genet 2000; 89:92-5. [PMID: 10894945 DOI: 10.1159/000015571] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
We have identified VPS33B, the human ortholog of rat Vps33b. VPS33B encodes a transcript of 2482 nt with an ORF of 617 amino acids and a predicted protein size of 70.6 kDa. VPS33B contains a Sec-1 domain shared with a family of proteins involved in protein sorting and vesicular trafficking. Enriched expression of VPS33B was observed in testis. VPS33B was positioned at chromosome 15q26.1 by radiation hybrid mapping.
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Affiliation(s)
- L Carim
- Medical and Molecular Genetics Center, Institut de Recerca Oncològica, Hospital Duran i Reynals, L'Hospitalet de Llobregat, Barcelona, Spain
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31
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Carim L, Sumoy L, Andreu N, Estivill X, Escarceller M. Identification and expression analysis of C15orf3, a novel gene on chromosome 15q21.1-->q21.2. Cytogenet Cell Genet 2000; 88:330-2. [PMID: 10828624 DOI: 10.1159/000015523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
We have isolated C15orf3, a novel human gene that lacks homology to any known gene family. The C15orf3 gene encodes a transcript of 1676 nt with an ORF of 187 amino acids and a predicted protein product size of 20.8 kDa. Northern blot analysis showed ubiquitous expression in adult tissues. EST database searching revealed the presence of C15orf3 homologs in rat and mouse. C15orf3 was mapped to chromosome 15q21.1-->q21.2 using the Stanford G3 radiation hybrid panel.
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Affiliation(s)
- L Carim
- Medical and Molecular Genetics Center, Institut de Recerca Oncològica, Hospital Duran i Reynals, L'Hospitalet de Llobregat, Barcelona, Spain
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Andreu N, Chalé JJ, Senard JM, Thalamas C, Montastruc JL, Rascol O. L-Dopa-induced sedation: a double-blind cross-over controlled study versus triazolam and placebo in healthy volunteers. Clin Neuropharmacol 1999; 22:15-23. [PMID: 10047929] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
Incidental case reports suggest that some parkinsonian patients treated with dopaminergic drugs complain of drowsiness but few controlled data are available. We compared the sedative effects of L-Dopa (200 mg + 50 mg benserazide, PO), triazolam (0.125 mg) and placebo in a randomized double-blind cross-over design in 22 healthy volunteers pretreated with domperidone (60 mg/day). Drowsiness was assessed using a visual analog scale (VAS), a computerized choice reaction time test (CRT) and an electro-oculogram (EOG). L-Dopa and triazolam induced significant drowsiness, compared to placebo, on VAS, CRT and some EOG parameters. After this first evaluation session, all subjects were chronically treated for 11 days with 600 mg/d of L-Dopa. Drowsiness induced by L-Dopa, triazolam or placebo was then tested again on three consecutive days to assess putative dopaminergic tolerance. After chronic L-Dopa treatment, triazolam-induced sedation remained unchanged while L-Dopa sedative effects were no longer significant except on the VAS, preventing the conclusion that tolerance occurred. These data suggest that an acute dose of L-Dopa induces sedation in L-Dopa-naive subjects. This sedative effect must be considered in clinical practice and when studying the effects of L-Dopa on motor or neuropsychological performance, especially in acute tests.
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Affiliation(s)
- N Andreu
- Department of Medical and Clinical Pharmacology, INSERM U317, Toulouse, France
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Andreu N, Damase-Michel C, Senard JM, Rascol O, Montastruc JL. A dose-ranging study of selegiline in patients with Parkinson's disease: effect of platelet monoamine oxidase activity. Mov Disord 1997; 12:293-6. [PMID: 9159721 DOI: 10.1002/mds.870120305] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
A dose-ranging study of selegiline was performed in patients with Parkinson's disease to determine the minimal dosage of the drug able to inhibit > or = 95% of platelet monoamine oxidase (MAO) activity. Different doses of selegiline (5 or 10 mg daily, 10 or 20 mg weekly) were studied in four groups of six patients with Parkinson's disease. Platelet MAO activity was measured before and after 1 month's treatment with selegiline. The doses of 5 or 10 mg daily and 20 mg (i.e., 10 mg x 2) weekly induced a complete inhibition of platelet MAO-B activity from day 7 to day 28 (96.0-99.5%). In contrast, platelet MAO-B inhibition was only 75.9% of the basal value after a dosage of 10 mg weekly. These results demonstrate that 20 mg weekly is the minimal dosage of selegiline able to induce a maximal and long-lasting inhibition of platelet MAO-B activity in patients with parkinsonism. Further clinical trials are needed to investigate the clinical efficacy of this dose.
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Affiliation(s)
- N Andreu
- Laboratoire de Pharmacologie Médicale et Clinique, INSERM U 317, Faculté de Médicine, Toulouse, France
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