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André J, Flórez-Fernández N, Domínguez H, Torres MD. Microwave-assisted extraction of Ulva spp. including a stage of selective coagulation of ulvan stimulated by a bio-ionic liquid. Int J Biol Macromol 2023; 225:952-963. [PMID: 36402385 DOI: 10.1016/j.ijbiomac.2022.11.158] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 10/27/2022] [Accepted: 11/15/2022] [Indexed: 11/18/2022]
Abstract
Microwave-assisted hydrothermal processing was proposed to recover high valuable compounds with antioxidant and gelling features from Ulva spp. green seaweed. The influence of the extraction conditions on the solubles, ulvan fraction and residual solid phase was studied to achieve a global valorization of the seaweed. A particular emphasis was placed on the selective coagulation of ulvan stimulated by a bio-ionic liquid during the extraction process. The achieved outcomes indicated that the selected microwave treatment exhibited a notable impact on the phytochemical properties of the soluble extracts, with the highest values of sulfate and protein content at 160 °C, and the highest antioxidant features at 200 °C. The most prominent molecular weight distributions were also identified for systems hydrothermal treated at 160 °C. The ulvan analyses showed that those extracted after microwave treatment at 160 °C showed the highest yields, molecular weight and the strongest gel features from the rheological point of view. The presence of the chloride chlorine during the extraction process favored the ulvan performance and the enhancement of the corresponding viscoelastic properties.
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Affiliation(s)
- J André
- CINBIO, Universidade de Vigo (Campus Ourense), Department of Chemical Engineering, Edificio Politécnico, As Lagoas, 32004 Ourense, Spain; École d'Ingénieur•e•s EPF, 3 bis rue Lakanal, 92330 Sceaux, France
| | - N Flórez-Fernández
- CINBIO, Universidade de Vigo (Campus Ourense), Department of Chemical Engineering, Edificio Politécnico, As Lagoas, 32004 Ourense, Spain
| | - H Domínguez
- CINBIO, Universidade de Vigo (Campus Ourense), Department of Chemical Engineering, Edificio Politécnico, As Lagoas, 32004 Ourense, Spain
| | - M D Torres
- CINBIO, Universidade de Vigo (Campus Ourense), Department of Chemical Engineering, Edificio Politécnico, As Lagoas, 32004 Ourense, Spain.
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2
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Inthasot S, André J, Richert B. Causes of longitudinal nail splitting: a retrospective 56-case series with clinical pathological correlation. J Eur Acad Dermatol Venereol 2022; 36:744-753. [PMID: 35088456 DOI: 10.1111/jdv.17967] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 11/14/2021] [Accepted: 12/07/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND Split nail (SN) is a rare type of nail fragility syndrome, characterized by a longitudinal fissure involving the entire thickness of the nail plate. Longitudinal nail splitting may be caused by direct injury to the nail plate or matrix insult. Few articles have been published on the topic, most were related to the traumatic aetiology. Some case reports mention tumours and inflammatory disorders as other causes. OBJECTIVES AND METHODS The aim of this retrospective study was to analyse the clinical and histopathological features of 56 SN collected at the nail consultation of the dermatology department at Saint Pierre University Hospital in Brussels, between 1997 and 2019. RESULTS Fifty-six patients were included (34 women and 22 men) with median age of 44.2 years. The fingernails were 3.2 times more frequently affected than toenails, especially the thumb. The most frequent aetiologies were tumours (45.6%), inflammatory diseases (26.3%) and traumas (19.3%). Congenital (5.3%) and systemic disorders (3.5%) were rarer causes. Histopathological slide review confirmed that alteration of the nail matrix integrity causes split nail, resulting either from matrix stretching by an underlying tumour or from impairment of the keratinization process by inflammatory diseases, melanocytic tumours and Bowen's disease. CONCLUSIONS This study is the largest case series of longitudinal nail splitting to date. It is the first to gather nail disorders causing SN with their clinical pathological correlation. The most common causes are traumatisms, tumours and inflammatory disorders. Congenital and systemic disorders are rarer. Tumours are responsible for half of the cases from which one third are malignant, mainly melanoma. When facing a monodactylic SN, benign as well as malignant tumours should be ruled out before concluding to traumatic aetiology.
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Affiliation(s)
- S Inthasot
- Dermatology Department, St-Pierre, Brugmann and Queen Fabiola Children University Hospitals, Université Libre de Bruxelles, Bruxelles, Belgium
| | - J André
- Dermatology Department, St-Pierre, Brugmann and Queen Fabiola Children University Hospitals, Université Libre de Bruxelles, Bruxelles, Belgium
| | - B Richert
- Dermatology Department, St-Pierre, Brugmann and Queen Fabiola Children University Hospitals, Université Libre de Bruxelles, Bruxelles, Belgium
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Fernández‐Figueras M, Malvehi J, Tschandl P, Rutten A, Rongioletti F, Requena L, Kittler H, Kerl K, Kazakov D, Cribier B, Calonje E, André J, Kempf W, Cardoso J, Filosa A, Hetzer S, Kervarrec T, Llamas‐Velasco M, Valeska Matter A, Rickaby W, Saggini A, Vandersleyen V. Position paper on a simplified histopathological classification of basal cell carcinoma: results of the European Consensus Project. J Eur Acad Dermatol Venereol 2021; 36:351-359. [DOI: 10.1111/jdv.17849] [Citation(s) in RCA: 3] [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] [Received: 09/16/2021] [Accepted: 11/11/2021] [Indexed: 12/26/2022]
Affiliation(s)
- M.T. Fernández‐Figueras
- Department of Pathology Hospital Universitari General de Catalunya Grupo Quironsalud & Universitat Internacional de Catalunya Sant Cugat del Vallés Spain
| | - J. Malvehi
- Department of Dermatology Hospital Clínic de Barcelona (Melanoma Unit) University of Barcelona IDIBAPS Barcelona & CIBERER Barcelona Spain
| | - P. Tschandl
- Department of Dermatology Medical University of Vienna Vienna Austria
| | - A. Rutten
- Dermatopathology Practice Friedrichshafen/Lake Constance Friedrichshafen Germany
| | - F. Rongioletti
- Dermatology Clinic IRCCS San Raffaele Hospital Vita Salute University Milan Italy
| | - L. Requena
- Department of Dermatology Fundación Jiménez Díaz Universidad Autónoma Madrid Spain
| | - H. Kittler
- Department of Dermatology Medical University of Vienna Vienna Austria
| | - K. Kerl
- Department of Dermatology University Hospital Zürich Zürich Switzerland
| | - D. Kazakov
- Sikl's Department of Pathology Medical Faculty in Pilsen Charles University in Prague Pilsen Czech Republic
| | - B. Cribier
- Dermatology Department University Hospital Strasbourg France
| | - E. Calonje
- St John's Institute of Dermatology St Thomas Hospital London UK
| | - J. André
- Department of Dermatology Centre Hospitalier Universitaire Saint‐Pierre Université Libre de Bruxelles Brussels Belgium
| | - W. Kempf
- Kempf Pfaltz Histologische Diagnostik Zurich Switzerland
- Department of Dermatology University Hospital Zurich Zürich Switzerland
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Tasia M, Lecerf P, Richert B, André J. Paediatric nail consultation in an academic centre in Belgium: a 10‐year retrospective study. J Eur Acad Dermatol Venereol 2019; 33:1800-1805. [DOI: 10.1111/jdv.15542] [Citation(s) in RCA: 5] [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] [Received: 11/06/2018] [Accepted: 02/08/2019] [Indexed: 11/30/2022]
Affiliation(s)
- M. Tasia
- Department of Dermatology Saint‐Pierre, Brugmann and Queen Fabiola Children's University Hospitals Université Libre de Bruxelles Brussels Belgium
| | - P. Lecerf
- Department of Dermatology Saint‐Pierre, Brugmann and Queen Fabiola Children's University Hospitals Université Libre de Bruxelles Brussels Belgium
| | - B. Richert
- Department of Dermatology Saint‐Pierre, Brugmann and Queen Fabiola Children's University Hospitals Université Libre de Bruxelles Brussels Belgium
| | - J. André
- Department of Dermatology Saint‐Pierre, Brugmann and Queen Fabiola Children's University Hospitals Université Libre de Bruxelles Brussels Belgium
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Delvaux C, Richert B, Lecerf P, André J. Onychopapillomas: a 68‐case series to determine best surgical procedure and histologic sectioning. J Eur Acad Dermatol Venereol 2018; 32:2025-2030. [DOI: 10.1111/jdv.15037] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 04/13/2018] [Indexed: 11/28/2022]
Affiliation(s)
- C. Delvaux
- Saint‐Pierre – Brugmann University Hospital Brussels Belgium
| | - B. Richert
- Saint‐Pierre – Brugmann University Hospital Brussels Belgium
| | - P. Lecerf
- Saint‐Pierre – Brugmann University Hospital Brussels Belgium
| | - J. André
- Saint‐Pierre – Brugmann University Hospital Brussels Belgium
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Grigorova-Borsos AM, Bara L, Aberer E, Grochulski A, André J, Mozère G, Peyroux J, Sternberg M. Aging and Diabetes Increase the Aggregating Potency of Rat Skin Collagen Towards Normal Platelets. Thromb Haemost 2018. [DOI: 10.1055/s-0038-1647638] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
SummaryAcid-soluble collagen samples were prepared from individual skins of 24 month old rats (n = 8), 2 month old young controls (n = 8) and from 6 month old streptozotocin-diabetic rats (n = 5) and their age-matched controls (n = 10). Less collagen was obtained by acid extraction and salt precipitations from skins of diabetic and aged rats than from those of their respective controls. The collagen preparations from diabetic and aged rats showed an increased ratio of beta/alpha components. The rate of “in vitro” fibrillogenesis was less for collagen from diabetic rats than from controls. It was not modified for collagens from aged rats. The aggregating potency towards normal human platelets was markedly increased for collagens from aged and diabetic rats: reduced latency time (p <0.01) and increased velocity (p <0.01) were observed for collagens from aged rats when compared with young rats (16.5 μg/ml). Increased velocity (p <0.01) was also observed for collagens from diabetic rats (8.25, 11 and 16.5 μg/ ml), without modification of latency time.
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Affiliation(s)
- A M Grigorova-Borsos
- The Groupe de Recherches sur la Biochimie et la Pharmacologie des Vaisseaux et du Rein, Département de Biochimie, Faculté de M6decine Broussais, Hôtel-Dieu, Paris, France
| | - L Bara
- The Laboratoire Central d’Hématologie (Prof. M. Samama), Hôtel-Dieu, Paris, France
| | - E Aberer
- The Groupe de Recherches sur la Biochimie et la Pharmacologie des Vaisseaux et du Rein, Département de Biochimie, Faculté de M6decine Broussais, Hôtel-Dieu, Paris, France
| | - A Grochulski
- The Groupe de Recherches sur la Biochimie et la Pharmacologie des Vaisseaux et du Rein, Département de Biochimie, Faculté de M6decine Broussais, Hôtel-Dieu, Paris, France
| | - J André
- The Groupe de Recherches sur la Biochimie et la Pharmacologie des Vaisseaux et du Rein, Département de Biochimie, Faculté de M6decine Broussais, Hôtel-Dieu, Paris, France
| | - G Mozère
- The Groupe de Recherches sur la Biochimie et la Pharmacologie des Vaisseaux et du Rein, Département de Biochimie, Faculté de M6decine Broussais, Hôtel-Dieu, Paris, France
| | - J Peyroux
- The Groupe de Recherches sur la Biochimie et la Pharmacologie des Vaisseaux et du Rein, Département de Biochimie, Faculté de M6decine Broussais, Hôtel-Dieu, Paris, France
| | - M Sternberg
- The Groupe de Recherches sur la Biochimie et la Pharmacologie des Vaisseaux et du Rein, Département de Biochimie, Faculté de M6decine Broussais, Hôtel-Dieu, Paris, France
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Saintot C, André J, Hentgen C, Jacques L, Barrans A. Meningitis and septic shock caused by Streptococcus dysgalactiae subsp. equisimilis. Med Mal Infect 2018; 48:221-222. [DOI: 10.1016/j.medmal.2017.12.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 12/12/2017] [Indexed: 11/16/2022]
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Combes J, Schweyer F, Azzedine F, Sherlaw W, André J. 1.10-P15Health providers in France: how do they find a way to meet migrants' needs? Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky048.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- J Combes
- EHESP - French School of Public Health, Rennes, France
- CNRS, UMR ARENES Crape Centre de Recherche sur l’Action Politique en Europe – 6051, France
| | - F Schweyer
- EHESP - French School of Public Health, Rennes, France
- Centre Maurice Halbwachs, Paris, France
| | - F Azzedine
- EHESP - French School of Public Health, Rennes, France
- CNRS, UMR ARENES Crape Centre de Recherche sur l’Action Politique en Europe – 6051, France
| | - W Sherlaw
- EHESP - French School of Public Health, Rennes, France
- LABERS EA3149 Université de Bretagne Occidentale, France
| | - J André
- EHESP - French School of Public Health, Rennes, France
- CNRS, UMR ARENES Crape Centre de Recherche sur l’Action Politique en Europe – 6051, France
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Vincent-Viry O, André J, Chobriat A, Dauteuil C, Durut F, Hermerel C, Meux S, Theobald M. Assembly Station for Automated Membrane Gluing on Gas Targets. Fusion Science and Technology 2018. [DOI: 10.1080/15361055.2017.1387017] [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] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- O. Vincent-Viry
- Commissariat à l’Energie Atomique et aux Energies Alternatives, VALDUC, F-21120 Is-sur-Tille, France
| | - J. André
- Commissariat à l’Energie Atomique et aux Energies Alternatives, VALDUC, F-21120 Is-sur-Tille, France
| | - A. Chobriat
- Commissariat à l’Energie Atomique et aux Energies Alternatives, VALDUC, F-21120 Is-sur-Tille, France
| | - C. Dauteuil
- Commissariat à l’Energie Atomique et aux Energies Alternatives, VALDUC, F-21120 Is-sur-Tille, France
| | - F. Durut
- Commissariat à l’Energie Atomique et aux Energies Alternatives, VALDUC, F-21120 Is-sur-Tille, France
| | - C. Hermerel
- Commissariat à l’Energie Atomique et aux Energies Alternatives, VALDUC, F-21120 Is-sur-Tille, France
| | - S. Meux
- Commissariat à l’Energie Atomique et aux Energies Alternatives, VALDUC, F-21120 Is-sur-Tille, France
| | - M. Theobald
- Commissariat à l’Energie Atomique et aux Energies Alternatives, VALDUC, F-21120 Is-sur-Tille, France
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10
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Bulinckx A, André J, Roquet-Gravy PP. Syndrome PENS. Ann Dermatol Venereol 2017. [DOI: 10.1016/j.annder.2017.09.283] [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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11
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Mutio M, Marandola F, Ben Mansour K, André J, Marin F. Motion analysis of snare drum in relation with the musician's expertise. Comput Methods Biomech Biomed Engin 2017; 20:149-150. [PMID: 29088661 DOI: 10.1080/10255842.2017.1382905] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- M Mutio
- a Sorbonne Universités, Université de Technologie de Compiègne, UMR CNRS 7338, Biomécanique et Bioingénierie , Compiègne , France
| | - F Marandola
- b Sorbonne Universités, Muséum National d'Histoire Naturelle, UMR CNRS 7206: Eco-anthropologie et Ethnobiologie , Paris , France.,c Schulich School of Music of McGill University, Centre for Interdiscipinary Research in Music Media and Technology , Montreal , Canada
| | - K Ben Mansour
- a Sorbonne Universités, Université de Technologie de Compiègne, UMR CNRS 7338, Biomécanique et Bioingénierie , Compiègne , France
| | - J André
- d Pôle Supérieur d'enseignement artistique Paris Boulogne-Billancourt (PSPBB) , Paris , France
| | - F Marin
- a Sorbonne Universités, Université de Technologie de Compiègne, UMR CNRS 7338, Biomécanique et Bioingénierie , Compiègne , France
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Vandeputte M, Couturier B, Vandergheynst F, Maerevoet M, Jullie ML, Kolivras A, Fontanges Q, Verset L, André J, Cogan E, Boysson H. Une histoire empérique, polémique : à l’aise ! Rev Med Interne 2017; 38:633-637. [DOI: 10.1016/j.revmed.2017.06.011] [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] [Received: 06/06/2017] [Accepted: 06/06/2017] [Indexed: 11/15/2022]
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13
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Di Chiacchio N, André J, Haneke E, Di Chiacchio NG, Fonseca Noriega L, Ocampo-Garza J. Pseudo-pitting of the nail in psoriasis. J Eur Acad Dermatol Venereol 2017; 31:e347-e348. [PMID: 28129473 DOI: 10.1111/jdv.14141] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- N Di Chiacchio
- Dermatology Department, Hospital do Servidor Público Municipal de São Paulo, São Paulo, Brazil
| | - J André
- Head of the Dermatology and Dermatopathology Department, University Hospitals Saint-Pierre, Brussels, Belgium
| | - E Haneke
- Department of Dermatology, Inselspital, University of Bern, Bern, Switzerland.,Dermatology Clinic Dermaticum, Freiburg i.Br., Germany.,Centro de Dermatología Epidermis, Instituto CUF, Porto, Portugal.,Department of Dermatology, Academic Hospital, University of Gent, Gent, Belgium
| | - N G Di Chiacchio
- Dermatology Department, Hospital do Servidor Público Municipal de São Paulo, São Paulo, Brazil.,Dermatology Department, Faculty of Medicine of ABC, São Paulo, Brazil
| | - L Fonseca Noriega
- Dermatology Department, Hospital do Servidor Público Municipal de São Paulo, São Paulo, Brazil
| | - J Ocampo-Garza
- Dermatology Department, Faculty of Medicine of ABC, São Paulo, Brazil.,Dermatology Department, University Hospital 'Dr. José Eleuterio González', Universidad Autónoma de Nuevo León, Monterrey, Mexico
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Abstract
Cosmetic embellishment of fingernails involves the use of substance that harden either after the evaporation of solvents (varnishes) or after polymerisation (artificial acrylic nails, gel tips, glue-on artificial nails). Pathological reactions to cosmetics usually occur at a remote site for varnishes, and, most commonly, in situ with polymerising substances. Unvarnished artificial nails do not affect pulse oximetry readings, and in theory, patients are not required to remove them. However, a real problem of contamination via artificial nails exists. Increased carriage of pathological Gram-negative organisms and of Staphylococcus aureus and yeasts has been noted among nursing staff wearing artificial nails, both before and after fingernail cleaning. Fingernail fragility manifests itself through a number of different physical signs such as soft, breaking nails, with longitudinal or transverse fissures, showing distal doubling or friability. In some subjects, excessive manicuring with metal instruments or manicure sticks results in rolled onycholysis, of evocative appearance, or transverse onycholysis.
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Affiliation(s)
- R Baran
- Centre de diagnostic et traitement des maladies des ongles, 42, rue des Serbes, 06400 Cannes, France.
| | | | - J André
- Département interhospitalier de dermatologie, CHU Brugmann-HUDERF, CHU Saint-Pierre, 322, rue Haute, 1000 Bruxelles, Belgique
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15
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Laugier F, Delyon J, André J, Bensussan A, Dumaz N. Hypoxia and MITF regulate KIT oncogenic properties in melanocytes. Oncogene 2016; 35:5070-7. [PMID: 26973244 DOI: 10.1038/onc.2016.39] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Revised: 02/04/2016] [Accepted: 02/08/2016] [Indexed: 02/06/2023]
Abstract
KIT mutations are frequent in acral, mucosal and chronic sun-damage (CSD) melanoma, but little is known about the mechanisms driving the transformation of KIT-mutated melanocytes into melanoma cells. We showed that exposition of melanocytes harboring the (L576P)KIT mutation to a hypoxic environment induced their transformation into malignant cells. Transformed (L576P)KIT melanocytes showed downregulation of MITF expression characteristic of melanoma initiating cells (MICs). In agreement, these cells were able to form spheres in neural crest cell medium and low-adherence conditions, also a characteristic of MICs. Downregulation of MITF by RNA interference induced transformation of KIT-mutated melanocytes in normoxia and acquisition of a MIC phenotype by these cells. Hence, low level of MITF cooperates with oncogenic KIT to transform melanocytes. Activation of the cAMP pathway in transformed (L576P)KIT melanocytes stimulated MITF expression, and reduced cellular proliferation and sphere formation. These findings highlight the essential role of MITF in revealing the oncogenic activity of KIT in melanocytes and suggest that the cAMP pathway is a therapeutic target in KIT-mutated melanoma.
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Affiliation(s)
- F Laugier
- INSERM, U976, Centre de Recherche sur la Peau, Hôpital Saint-Louis, Paris, France.,Université Paris Diderot, Sorbonne Paris Cité, UMRS976, Paris, France
| | - J Delyon
- INSERM, U976, Centre de Recherche sur la Peau, Hôpital Saint-Louis, Paris, France.,Université Paris Diderot, Sorbonne Paris Cité, UMRS976, Paris, France
| | - J André
- INSERM, U976, Centre de Recherche sur la Peau, Hôpital Saint-Louis, Paris, France.,Université Paris Diderot, Sorbonne Paris Cité, UMRS976, Paris, France
| | - A Bensussan
- INSERM, U976, Centre de Recherche sur la Peau, Hôpital Saint-Louis, Paris, France.,Université Paris Diderot, Sorbonne Paris Cité, UMRS976, Paris, France
| | - N Dumaz
- INSERM, U976, Centre de Recherche sur la Peau, Hôpital Saint-Louis, Paris, France.,Université Paris Diderot, Sorbonne Paris Cité, UMRS976, Paris, France
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Gierski F, André J, Pierrefiche O, Duka T, Naassila M. Impact cérébral du binge drinking et vulnérabilité à l’alcoolodépendance. Eur Psychiatry 2015. [DOI: 10.1016/j.eurpsy.2015.09.121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
Les conséquences à court terme et à long terme du binge drinking sur le cerveau et son fonctionnement commencent à être bien appréhendés. Sa pratique est banalisée et donc courante chez les jeunes. Nous avons initié une série d’études dans le cadre du projet européen AlcoBinge visant à mesurer les conséquences cérébrales morphologiques et fonctionnelles dans une population d’étudiants. Nous avons aussi utilisé la modélisation animale pour rechercher les conséquences à court terme sur les capacités cognitives et les phénomènes de plasticité synaptique après seulement quelques épisodes de binge drinking. La vulnérabilité à long terme à l’alcoolodépendance a été étudiée dans ces mêmes modèles animaux. Nos résultats démontrent que le binge drinking entraîne à la fois des atteintes de la substance blanche et de la substance grise qui peuvent être corrélées à des déficits d’apprentissage et de mémorisation. Chez l’animal nos résultats montrent que deux épisodes de binge drinking suffisent pour induire des perturbations importantes de certaines formes de plasticité synaptique hippocampique associées à des déficits d’apprentissage et de mémorisation. Ces atteintes semblent particulièrement impliquer les récepteurs NMDA du glutamate car les effets de l’alcool sont mimés par la kétamine et bloqués par la D-serine. De manière inquiétante, quelques épisodes de binge drinking à l’adolescence suffisent pour induire une forte motivation pour la consommation d’alcool à l’âge adulte associée à une plus grande anxiété et une moindre réactivité du noyau accumbens à l’alcool. Au total l’ensemble de ces résultats cliniques et précliniques suggèrent que le binge drinking est particulièrement toxique au niveau cérébral et augmente le risque d’alcoolodépendances à l’âge adulte.
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17
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André J, Richert B. [Skin sampling for the general practitioner]. Rev Med Brux 2015; 36:273-277. [PMID: 26591312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Skin samplings are easily performed in general practice. They include skin biopsies, nail clippings, skin scrappings, hair pluckings as well as trichograms. The different types of skin biopsies are curetage, shaving, punch and elliptic biopsies. They are most commonly used for the diagnosis of inflammatory skin conditions and cutaneous tumors. The biopsies are performed under local anesthesia and each has specific indications. Their complications are minimal. In order to obtain as much information as possible the lesion to be biopsied should be judiciously selected, harvested without being harmed and sent to a skin-oriented pathologist. Nail clippings, skin scrapings and hair plucking allow diagnosis of superficial skin mycosis (tinea, pityriasis versicolor) and are mandatory before prescribing systemic treatment. Scrapping of an itch mite burrow may sometimes reveal the sarcopte. Trichogram may be useful in the work up of a hair loss.
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Rongioletti F, Kaiser F, Cinotti E, Metze D, Battistella M, Calzavara-Pinton PG, Damevska K, Girolomoni G, André J, Perrot JL, Kempf W, Cavelier-Balloy B. Scleredema. A multicentre study of characteristics, comorbidities, course and therapy in 44 patients. J Eur Acad Dermatol Venereol 2015; 29:2399-404. [PMID: 26304054 DOI: 10.1111/jdv.13272] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2015] [Accepted: 05/21/2015] [Indexed: 11/30/2022]
Abstract
BACKGROUND The prognostic and therapeutic features of scleredema are poorly documented. OBJECTIVES To describe the characteristics of patients with scleredema regarding demographics, clinical characteristics, comorbidities, therapeutic interventions and course. METHODS We conducted a retrospective multicentre study. RESULTS We identified 44 patients (26 men).The mean age at diagnosis was 53.8 years. The most common associated disorders were endocrine/metabolic diseases including 30 patients suffering from diabetes, mostly type 2 diabetes. Monoclonal gammopathies were confirmed in five cases. A preceding respiratory tract infection was not a feature. Treatments with different combination or sequential modalities were used with variable results. Phototherapy (UVA1 or PUVA) was the treatment associated with higher, although partial response. Systemic corticosteroids and immunosuppressive drugs were reserved to patients with severe disease in whom phototherapy had failed or for patients with multiple myeloma. Forty-one patients were followed up (mean period: 32.2 months).Thirty-nine patients are alive, 30 with and 9 without skin disease. Two patients died of cardiovascular complications due to myeloma and severe diabetes. CONCLUSIONS Scleredema is a chronic debilitating disease associated with diabetes and metabolic syndrome, unresponsive to various treatments but not necessarily a life-threatening condition. Although there is no definitive treatment, phototherapy should be attempted first. Treatment of primary disease including strict glycaemic control combined with physical therapy should be also employed.
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Affiliation(s)
- F Rongioletti
- IRCSS-AOU S. Martino-IST, Department of Health Sciences, DISSAL, Section of Dermatology, University of Genoa, Genoa, Italy
| | - F Kaiser
- IRCSS-AOU S. Martino-IST, Department of Health Sciences, DISSAL, Section of Dermatology, University of Genoa, Genoa, Italy
| | - E Cinotti
- IRCSS-AOU S. Martino-IST, Department of Health Sciences, DISSAL, Section of Dermatology, University of Genoa, Genoa, Italy.,Section of Dermatology, University Hospital of Saint-Etienne, Saint-Etienne, France
| | - D Metze
- Department of Dermatology, University Hospital, Munster, Germany
| | - M Battistella
- Department of Pathology, Hôpital Saint Louis, Assistance Publique-Hôpitaux de Paris, Paris, France
| | | | - K Damevska
- Clinic of Dermatology, Medical Faculty University "Ss Cyril and Methodius", Skopje, Republic of Macedonia
| | - G Girolomoni
- Department of Medicine, Section of Dermatology and Venereology, University of Verona, Verona, Italy
| | - J André
- Department of Dermatology, CHU-Saint Pierre, Free University of Brussels, Brussels, Belgium
| | - J-L Perrot
- Section of Dermatology, University Hospital of Saint-Etienne, Saint-Etienne, France
| | - W Kempf
- Kempf and Pfaltz, Histological Diagnostics, and Dept. of Dermatology, University Hospital Zürich, Zürich, Switzerland
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Frouin E, Vignon-Pennamen MD, Balme B, Cavelier-Balloy B, Zimmermann U, Ortonne N, Carlotti A, Pinquier L, André J, Cribier B. Anatomoclinical study of 30 cases of sclerosing sweat duct carcinomas (microcystic adnexal carcinoma, syringomatous carcinoma and squamoid eccrine ductal carcinoma). J Eur Acad Dermatol Venereol 2015; 29:1978-94. [PMID: 25873411 DOI: 10.1111/jdv.13127] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Accepted: 03/02/2015] [Indexed: 11/27/2022]
Abstract
BACKGROUND Microcystic adnexal carcinoma (MAC), syringomatous carcinoma (SC) and "Squamoid eccrine ductal carcinoma" (SEDC) are rare sclerosing adnexal tumours. OBJECTIVE To understand the histogenesis of these tumours and possible clinical implications. METHODS We conducted a retrospective study of 30 cases, 18 MAC, 5 SC and 7 SEDC reviewed and classified by a panel of dermatopathology experts, with immunohistochemical analysis of keratins, including K77, a new keratin specific of eccrine ducts, and PHLDA1 expressed in adnexal structures. RESULTS There was a strong female predominance, with only five cases occurring in men. Patients with MAC and SC were younger (mean age 56 and 47 years) than those with SEDC (mean age 81 years). The most common localization was the cheek in SC and SEDC and the periocular area in MAC. Two cases of SEDC were found in organ transplant patients. No recurrence or metastases were observed after complete surgery of MAC, or SC (mean follow-up 7.2 years and 4.7 years), whereas one case of SEDC recurred and another could not be fully excised. MAC and SC had similar histological features, except for cysts. In MAC, calcifications, granulomas, connection to follicles, keratin expression pattern, PHLDA1 positivity and K77 negativity indicated a follicular histogenesis, whereas in SC, K77 positivity and keratin expression pattern were consistent with a differentiation towards eccrine apparatus. SEDC was composed of strands centred by ducts and nests with squamous differentiation and displayed K77 ductal positivity in all cases, a finding consistent with an eccrine origin. CONCLUSION Our study demonstrated that MAC and SC have similar clinical characteristics, although histogenesis differs and show arguments for the individualization of SEDC.
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Affiliation(s)
- E Frouin
- Laboratoire d'Anatomie et de Cytologie Pathologiques, Hôpital Jean Bernard, CHU, Poitiers, France
| | - M D Vignon-Pennamen
- Service d'Anatomie pathologique, Hôpital Saint Louis, APHP, Paris, France.,Centre de Pathologie cutanée de la Roquette, 56 rue de la Roquette, Paris, France
| | - B Balme
- Laboratoire d'Anatomie pathologique, Centre hospitalier Lyon Sud, Lyon, France
| | - B Cavelier-Balloy
- Service d'Anatomie pathologique, Hôpital Saint Louis, APHP, Paris, France.,Cabinet d'Anatomie pathologique dermatologique, 35 avenue Mathurin Moreau, Paris, France
| | - U Zimmermann
- Centre de Pathologie cutanée de la Roquette, 56 rue de la Roquette, Paris, France.,Laboratoire d'Anatomie pathologique, Hôpital Ambroise Paré, APHP, Boulogne-Billancourt, France
| | - N Ortonne
- Département de Pathologie, Hôpital Henri Mondor, APHP, Créteil, France
| | - A Carlotti
- Service d'Anatomie et de cytologie pathologiques, Hôpital Cochin-Tarnier, APHP, Paris, France
| | - L Pinquier
- Service d'Anatomie pathologique, Hôpital Saint Louis, APHP, Paris, France.,Laboratoire d'Anatomie pathologique, Centre hospitalier Lyon Sud, Lyon, France
| | - J André
- Centre d'Anatomie pathologique et de cytologie, Avenue du Diamant, Bruxelles, Belgium
| | - B Cribier
- Laboratoire d'Histopathologie cutanée, Clinique Dermatologique, Hôpital Civil, Strasbourg, France
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Vujovic A, André J, Salmon D, Harag S, Dangoisse C, Kolivras A. Épidémiologie et prise en charge des teignes du cuir chevelu. Ann Dermatol Venereol 2014. [DOI: 10.1016/j.annder.2014.09.294] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Affiliation(s)
- B Richert
- Département interhospitalier de dermatologie, université Libre de Bruxelles, hôpitaux universitaires Saint-Pierre & Brugmann, hôpital universitaire des enfants Reine-Fabiola, place Van-Gehuchten 4, 1020 Bruxelles, Belgique.
| | - M Caucanas
- Département interhospitalier de dermatologie, université Libre de Bruxelles, hôpitaux universitaires Saint-Pierre & Brugmann, hôpital universitaire des enfants Reine-Fabiola, place Van-Gehuchten 4, 1020 Bruxelles, Belgique; Clinique Saint-Jean Languedoc, 20, route de Revel, 31500 Toulouse, France
| | - J André
- Département interhospitalier de dermatologie, université Libre de Bruxelles, hôpitaux universitaires Saint-Pierre & Brugmann, hôpital universitaire des enfants Reine-Fabiola, place Van-Gehuchten 4, 1020 Bruxelles, Belgique
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22
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Marques A, André J, Martins J, Sarmento H, Diniz J. Sedentary behavior and physical activity patterns of urban adolescents: A study using ecological momentary assessment. Sci Sports 2014. [DOI: 10.1016/j.scispo.2014.08.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Marques A, André J, Martins J, Sarmento H, Diniz J, da Costa FC. PP8 Sedentary behaviour and physical activity patterns of urban adolescents: a study using ecological momentary assessment. Br J Sports Med 2014. [DOI: 10.1136/bjsports-2014-094245.24] [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: 11/03/2022]
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24
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Lambert J, André J, Boone M, Boonen H, Bouffioux B, Dedonder B, de la Brassinne M, del Marmol V, Lambert J, Lapeere H, Snauwaert J, Vandaele M, Vanhooteghem O, Van Staey A, Verhaeghe E. Profile of the Belgian dermatologist: results of an online survey. J Eur Acad Dermatol Venereol 2014; 28:667-8. [DOI: 10.1111/jdv.12227] [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] [Received: 04/24/2013] [Revised: 06/30/2013] [Accepted: 07/03/2013] [Indexed: 11/28/2022]
Affiliation(s)
- J.L.W. Lambert
- Department of Dermatology; Ghent University Hospital; Ghent Belgium
| | - J. André
- Interhospital Department of Dermatology; Université Libre de Bruxelles; Belgium
| | - M. Boone
- Department of Dermatology; CHU Brugmann; Brussels Belgium
| | - H. Boonen
- Department of Dermatology; Erica Hospital; Geel-Mol Belgium
| | - B. Bouffioux
- Department of Dermatology; Clinique St Pierre; Ottignies Belgium
| | | | - M. de la Brassinne
- Department of Dermatology; Clinique Sainte Elisabeth de Namur; Namur Belgium
| | - V. del Marmol
- Interhospital Department of Dermatology; Université Libre de Bruxelles; Belgium
| | - J. Lambert
- Department of Dermatology; Antwerp University Hospital; Antwerp Belgium
| | - H. Lapeere
- Department of Dermatology; Ghent University Hospital; Ghent Belgium
| | | | - M. Vandaele
- Department of Dermatology; City Hospital; Roeselare Belgium
| | - O. Vanhooteghem
- Department of Dermatology; Clinique Sainte Elisabeth de Namur; Namur Belgium
| | - A. Van Staey
- Department of Dermatology; Zus van Barmh Hospital; Ronse Belgium
| | - E. Verhaeghe
- Department of Dermatology; Ghent University Hospital; Ghent Belgium
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Lecerf P, Richert B, André J. [Squamous cell carcinoma of the nail apparatus]. Ann Dermatol Venereol 2014; 141:156-60. [PMID: 24507214 DOI: 10.1016/j.annder.2013.10.048] [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] [Received: 09/11/2013] [Revised: 10/14/2013] [Accepted: 10/21/2013] [Indexed: 10/25/2022]
Affiliation(s)
- P Lecerf
- Département de dermatologie, CHU Brugmann, place Van Gehuchten 4, 1020 Bruxelles, Belgique; Département de dermatologie, CHU Saint-Pierre, rue Haute 322, 1000 Bruxelles, Belgique; Département de dermatologie, hôpital universitaire des enfants Reine Fabiola, avenue Jean-Joseph Crocq 15, 1020 Bruxelles, Belgique; Université Libre de Bruxelles, Bruxelles, Belgique
| | - B Richert
- Département de dermatologie, CHU Brugmann, place Van Gehuchten 4, 1020 Bruxelles, Belgique; Département de dermatologie, CHU Saint-Pierre, rue Haute 322, 1000 Bruxelles, Belgique; Département de dermatologie, hôpital universitaire des enfants Reine Fabiola, avenue Jean-Joseph Crocq 15, 1020 Bruxelles, Belgique; Université Libre de Bruxelles, Bruxelles, Belgique.
| | - J André
- Département de dermatologie, CHU Brugmann, place Van Gehuchten 4, 1020 Bruxelles, Belgique; Département de dermatologie, CHU Saint-Pierre, rue Haute 322, 1000 Bruxelles, Belgique; Département de dermatologie, hôpital universitaire des enfants Reine Fabiola, avenue Jean-Joseph Crocq 15, 1020 Bruxelles, Belgique; Université Libre de Bruxelles, Bruxelles, Belgique
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El Hayderi L, Paurobally D, Fassotte MF, André J, Arrese JE, Sadzot-Delvaux C, Ruebben A, Nikkels AF. Herpes simplex virus type-I and pyogenic granuloma: a vascular endothelial growth factor-mediated association? Case Rep Dermatol 2013; 5:236-43. [PMID: 24019777 PMCID: PMC3764972 DOI: 10.1159/000354570] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Pyogenic granuloma (PG) is a vascular endothelial growth factor (VEGF)-related neoangiogenic process. Minor trauma, chronic irritation, certain drugs and pregnancy may favor PG. Viral triggers have not been reported up to date. A 52-year-old woman with hairy-cell leukemia presented because of a 3-month history of a giant pseudotumoral lesion on her left cheek. All prior antibacterial, antifungal and anti-inflammatory treatments had failed. Histology revealed PG with sparse and isolated epithelial cell aggregates. Immunohistochemistry (IHC) identified herpes simplex virus type-I (HSV-I) antigens in the nuclei and cytoplasm of normal-appearing as well as cytopathic epithelial cells, suggesting a chronic, low-productive HSV infection. No HSV-I signal was evidenced in the endothelial cells of the PG. Furthermore, IHC revealed VEGF in the HSV-I infected epithelial cells as well as within the PG endothelial cells. These results incited oral treatment with valaciclovir, and the PG promptly resolved after 2 weeks. These findings suggest that a chronic HSV-I infection might play an indirect, partial role in neoangiogenesis, presumably via HSV-I infection-related stimulation of keratinocytic VEGF production.
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Affiliation(s)
- L El Hayderi
- Department of Dermatology, CHU of Sart Tilman, University of Liège, Liège, Brussels, Belgium
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Neczyporenko F, André J, Torosian K, Theunis A, Richert B. Management of in situ
melanoma of the nail apparatus with functional surgery: report of 11 cases and review of the literature. J Eur Acad Dermatol Venereol 2013; 28:550-7. [DOI: 10.1111/jdv.12131] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2012] [Accepted: 02/06/2013] [Indexed: 11/27/2022]
Affiliation(s)
- F. Neczyporenko
- Department of Dermatology; Saint Pierre, Brugmann and Children's University Hospitals; Université Libre de Bruxelles (ULB); Brussels Belgium
| | - J. André
- Department of Dermatology; Saint Pierre, Brugmann and Children's University Hospitals; Université Libre de Bruxelles (ULB); Brussels Belgium
| | - K. Torosian
- Department of Dermatology; Saint Pierre, Brugmann and Children's University Hospitals; Université Libre de Bruxelles (ULB); Brussels Belgium
| | - A. Theunis
- Department of Dermatology; Saint Pierre, Brugmann and Children's University Hospitals; Université Libre de Bruxelles (ULB); Brussels Belgium
- Department of Pathology; Institut Bordet; Université Libre de Bruxelles (ULB); Brussels Belgium
| | - B. Richert
- Department of Dermatology; Saint Pierre, Brugmann and Children's University Hospitals; Université Libre de Bruxelles (ULB); Brussels Belgium
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Lam Hoai XL, André J, Kolivras A. Les hamartomes fibrolipomateux congénitaux précalcanéens. Ann Dermatol Venereol 2012. [DOI: 10.1016/j.annder.2012.10.243] [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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Heuschling A, Dangoisse C, Harag S, André J. [Hereditary epidermolysis bullosa: clinical and ultrastructural analysis of 21 cases]. Rev Med Brux 2012; 33:4-11. [PMID: 22512144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Hereditary epidermolysis bullosa (HEB) constitute a genodermatosis group with variable clinical severity. The aim of the study was to confront the diagnosis established by electron microscopy (EM), with the clinical presentation and evolution, genetic analysis and immunofluorescence, and to observe if there was concordance. Biopsies diagnosed as HEB in the last 15 years, were retrieved from the database of the C.H.U. Saint-Pierre EM lab. Each corresponding medical file was reviewed and the following data were recorded: date of birth, sex, age, age at biopsy, ultrastructural characteristics, degree of certainty regarding the EM diagnosis, family history, clinical lesions and their evolution as well as other diagnostic tests performed. 21 patients, aged 1 day to 26 year old were included. A HEB simplex was diagnosed in 10 cases, a junctional EBH in 5 cases and a dystrophic HEB in 6 cases. Immunofluorescence was requested in 4 cases. 7 patients benefited from a genetic analysis. Physical examination revealed hyperpigmented spots in 1 case. A patient with dystrophic HEB had a family history of symptoms restricted to the nails. 4 patients died. In conclusion, the accurate clinical diagnosis of the HEB sub-type is difficult because of the symptomatology heterogeneity. EM remains the gold standard for diagnosis even if immunofluorescence and genetic analysis should be more systematically considered.
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Affiliation(s)
- A Heuschling
- Département interhospitalier de Dermatologie des C.H.U. Brugmann, C.H.U. Saint-Pierre et H.U.D.E.R.F, Bruxelles
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Chabbab F, Richert B, André J. Lichen plan unguéal mimant le syndrome xanthonychique. Ann Dermatol Venereol 2011. [DOI: 10.1016/j.annder.2011.10.277] [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: 10/15/2022]
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Dubau L, Durst J, Maillard F, Guétaz L, Chatenet M, André J, Rossinot E. Further insights into the durability of Pt3Co/C electrocatalysts: Formation of “hollow” Pt nanoparticles induced by the Kirkendall effect. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2011.03.073] [Citation(s) in RCA: 96] [Impact Index Per Article: 7.4] [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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Camus F, Theunis A, de Saint-Aubain N, De Maubeuge J, Deraemaecker R, André J, Richert B. [Nasal neurothekeoma in an adolescent girl]. Ann Dermatol Venereol 2011; 139:165-7. [PMID: 22325762 DOI: 10.1016/j.annder.2011.09.189] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2011] [Accepted: 09/09/2011] [Indexed: 11/25/2022]
Affiliation(s)
- F Camus
- Département interhospitalier de dermatologie des CHU Saint-Pierre, CHU Brugmann et de l'hôpital universitaire des Enfants-Reine-Fabiola, Belgique.
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Richert B, Cappelletti ML, André J. [Differential diagnosis of onychomycosis]. Rev Med Brux 2011; 32:219-223. [PMID: 22034748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Almost 50% of nail pathology is caused by onychomycosis. However, the nail has a limited reservoir of clinical expressions and many conditions may mimic onychomycosis. Its differential diagnosis should be known in order to avoid useless or even toxic treatments. When confronted with ungual alterations restricted to one or some nails, it is fair to evoke onychomycosis but one should keep in mind repeated traumata to the toenails, psoriasis and chronic paronychia on the fingernails. Involvement of a large number of nails, especially all twenty nails, should not first suggest a fungal infection but rather an inflammatory or systemic condition. It is mandatory to always sample the nail for mycological examination before prescribing any systemic treatment.
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Affiliation(s)
- B Richert
- Département Interhospitalier de Dermatologie des C.H.U. Brugmann, C.H.U. Saint-Pierre et. H.U.D.E.R.F., Bruxelles.
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Affiliation(s)
- B Richert
- Service de dermatologie, hôpital universitaire de Liège, Liège, Belgium.
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Dubau L, Maillard F, Chatenet M, André J, Rossinot E. Nanoscale compositional changes and modification of the surface reactivity of Pt3Co/C nanoparticles during proton-exchange membrane fuel cell operation. Electrochim Acta 2010. [DOI: 10.1016/j.electacta.2010.09.038] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.2] [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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Maillard F, Dubau L, Durst J, Chatenet M, André J, Rossinot E. Durability of Pt3Co/C nanoparticles in a proton-exchange membrane fuel cell: Direct evidence of bulk Co segregation to the surface. Electrochem commun 2010. [DOI: 10.1016/j.elecom.2010.06.007] [Citation(s) in RCA: 92] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Abstract
The nail plate is the permanent product of the nail matrix. Its normal appearance and growth depend on the integrity of several components: the surrounding tissues or perionychium and the bony phalanx that are contributing to the nail apparatus or nail unit. The nail is inserted proximally in an invagination practically parallel to the upper surface of the skin and laterally in the lateral nail grooves. This pocket-like invagination has a roof, the proximal nail fold and a floor, the matrix from which the nail is derived. The germinal matrix forms the bulk of the nail plate. The proximal element forms the superficial third of the nail whereas the distal element provides its inferior two-thirds. The ventral surface of the proximal nail fold adheres closely to the nail for a short distance and forms a gradually desquamating tissue, the cuticle, made of the stratum corneum of both the dorsal and the ventral side of the proximal nail fold. The cuticle seals and therefore protects the ungual cul-de-sac. The nail plate is bordered by the proximal nail fold which is continuous with the similarly structured lateral nail fold on each side. The nail bed extends from the lunula to the hyponychium. It presents with parallel longitudinal rete ridges. This area, by contrast to the matrix has a firm attachment to the nail plate and nail avulsion produces a denudation of the nail bed. Colourless, but translucent, the highly vascular connective tissue containing glomus organs transmits a pink colour through the nail. Among its multiple functions, the nail provides counterpressure to the pulp that is essential to the tactile sensation involving the fingers and to the prevention of the hypertrophy of the distal wall tissue, produced after nail loss of the great toe nail.
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Affiliation(s)
- D A R de Berker
- Bristol Dermatology Centre, Bristol Royal Infirmary, Bristol BS2 8HW, UK
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Piette-Brion B, de Bast C, Chamoun E, de Dobbeleer G, André J, Huybrechts A, Ledoux M, Achten G. Pemphigus superficiel apparu lors du traitement d’une polyarthrite rhumatoïde par D-pénicillamine et piroxicam (Feldène ®). Dermatology 2009. [DOI: 10.1159/000249554] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Doléans-Jordheim A, Cournoyer B, Bergeron E, Croizé J, Salord H, André J, Mazoyer MA, Renaud FNR, Freney J. Reliability of Pseudomonas aeruginosa semi-automated rep-PCR genotyping in various epidemiological situations. Eur J Clin Microbiol Infect Dis 2009; 28:1105-11. [PMID: 19449044 DOI: 10.1007/s10096-009-0755-z] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2008] [Accepted: 05/01/2009] [Indexed: 11/27/2022]
Abstract
The purpose of this study was to evaluate the possibility of using a semi-automated repetitive DNA sequences-based polymerase chain reaction (rep-PCR) for typing Pseudomonas aeruginosa isolates. rep-PCR profiles obtained by the DiversiLab system of 84 P. aeruginosa isolates from distinct epidemiological situations were obtained. rep-PCR groupings were in good agreement with the origin of these isolates. Linked rep-PCR profiles were observed for isolates recovered from a same family of cystic fibrosis (CF) patients, for the etiological agents of clustered cases of nosocomial infections, and for some isolates recovered from a same hospital room. rep-PCR and pulsed-field gel electrophoresis SpeI restricted genomic DNA (PFGE-SpeI) profiles were compared. In a few instances, rep-PCR revealed genetic divergences among isolates of a same group of PFGE-SpeI profiles. These divergences could reflect genetic drifts among closely related isolates, as illustrated by those observed between clinical and environmental isolates of a same group of PFGE-SpeI profiles. The interpretation of such differences will require further studies, but the rep-PCR analysis of P. aeruginosa diversity appeared to be an appropriate method to investigate infra-specific genetic relatedness.
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Delplace D, da Costa LM, Goffin L, Wechsler ME, Sass U, André J, Dangoisse C, Song M. Oral ulceration: an unusual manifestation of Churg-Strauss syndrome. J Eur Acad Dermatol Venereol 2007; 21:969-72. [PMID: 17659008 DOI: 10.1111/j.1468-3083.2006.02086.x] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Churg-Strauss Syndrome (CSS) is a relatively rare entity characterized by asthma, transient pulmonary infiltrates, eosinophilia and systemic vasculitis. Oral ulceration is a possible clinical manifestation of some systemic vasculitides, such as Wegener's granulomatosis (WG) or giant cell arteritis, but has never been reported with Churg-Strauss syndrome. We report the first observation of a palatine ulceration in a 15-year-old girl with Churg-Strauss syndrome.
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Affiliation(s)
- D Delplace
- Department of Dermatology, University Hospital Saint-Pierre, Brugmann and HUDERF, Free University of Brussels, Belgium.
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Vanhooteghem O, Henrijean A, André J, Richert B, De La Brassinne M. Un ongle d’inclusion : une complication de la cure chirurgicale d’ongle incarné selon la technique de Zadik. Ann Dermatol Venereol 2006; 133:1009-10. [PMID: 17185935 DOI: 10.1016/s0151-9638(06)71089-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- O Vanhooteghem
- Service de Dermatologie, CHU Sart Tilman, Liège, Belgique.
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Campos-Fernandes J, Descotes F, Decaussin M, André J, Paparel P, Collin-chavagnac D, Boisson R, Perrin P, Devonec M, Ruffion A. URINARY SURVIVIN IS A BIOMARKER FOR THE DIAGNOSIS OF INVASIVE BLADDER CANCER. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/s1569-9056(06)60372-2] [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: 10/24/2022]
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Loeb I, Shahla M, Delplace D, André J, Demaubeuge J. [Skin and mucosal involvement]. Rev Stomatol Chir Maxillofac 2006; 107:121-3. [PMID: 16738521 DOI: 10.1016/s0035-1768(06)77002-4] [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: 05/09/2023]
Affiliation(s)
- I Loeb
- Service de Stomatologie et Chirurgie Maxillo-faciale, CHU St-Pierre, Bruxelles, Belgique
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Abstract
We report the case of a 33-year-old patient who had had insulin-dependent diabetes mellitus (IDDM) since he was 11 months old, and who presented with major perforating necrobiosis lipoidica (PNL) complicated by a well-differentiated epidermoid carcinoma. PNL is a rare clinical form of NL, always associated with diabetes. Only seven cases have been reported to date in the literature, and to the best of our knowledge, an association of epidermoid carcinoma and PNL has never been described. The development of a tumoral transformation on a classical NL plaque has only been described 12 times. The presence of an epidermoid carcinoma on a weakened background with permanent ulceration suggests that early surgical excision of the tumour and of the NL followed by a skin graft might be the treatment of choice. Radiotherapy seems to be a poor therapeutic option.
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Affiliation(s)
- O Vanhooteghem
- Department of Dermatology, Sainte Elisabeth Hospital, Namur, Belgium.
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Affiliation(s)
- I Loeb
- Service de Stomatologie et Chirurgie Maxillo-Faciale (Prof. J. Van Reck), CHU Saint-Pierre, Bruxelles, Belgique
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Richert B, André J, Bourguignon R, de la Brassinne M. Hyperkeratotic nail discoid lupus erythematosus evolving towards systemic lupus erythematosus: therapeutic difficulties. J Eur Acad Dermatol Venereol 2004; 18:728-30. [PMID: 15482310 DOI: 10.1111/j.1468-3083.2004.01068.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Nail changes occur in about 25% of systemic lupus erythematosus (SLE) cases. Onycholysis has been reported as the most frequent abnormality in SLE. Nailbed hyperkeratosis may be observed in both SLE and discoid lupus erythematosus (DLE). Involvement of the nail apparatus in DLE is extremely uncommon and never restricted to it. We report on a patient in whom the clinical features on the proximal nailfold were similar to those observed on the skin of a patient with typical DLE. This has, to the best of our knowledge, not yet been reported. The patient also exhibited a very distinctive prominent subungual hyperkeratosis. Interestingly, the patient developed biological alterations suggesting a systematization of the disease. Only a combination of systemic corticoids, retinoids and antimalarials was able to achieve nail improvement and this partial resistance to therapy may be explained by the very unusual subungual hyperkeratosis.
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Affiliation(s)
- B Richert
- University of Liège, Quai G. Kurth, 45, B-4020 Liège, Belgium
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Abstract
Lipomas are one of the most common benign soft tissue tumors. The usual development sites are the neck, the torso, and the legs. Lipomas of the nail unit are extremely rare. Only five cases have been reported up to now, four in subungual locations and one in the lateral nail fold. We report three cases of peri-ungual lipomas, one on the digit and two on the toes. Two of them exhibited the histological features of perisudoral lipomas.
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Affiliation(s)
- B Richert
- Department of Dermatology at the University of Liège, Belgium.
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Abstract
INTRODUCTION Spontaneous occurrence of hemorrhagic blisters on the lower side of the breasts is an unusual clinical presentation of acquired lymphangiectasia. CASE REPORT A 64 Year-old and a 85 Year-old woman had developed recurrent bleeding blisters in the sub-mammary region for several Months. Histological, immunohistochemical and electron microscopic examination revealed a subpapillary dermal bullous dehiscence, parallel to the epidermis, which was connected to lymphangiectasias of the superficial dermis. Their extreme dilatation and rupture were probably responsible for the clinical inflammatory and bleeding aspect of the lesions, which have not recurred after 1 and 3 Years, respectively. DISCUSSION The presence of subpapillary inflammatory lymphangiectasias might be responsible for recurrent dermal blister formation. The reason for the presence of these hemorrhagic lymphangiectasias, restricted to the sub-mammary location and their spontaneous regression after several flare-ups, remain unclear. The unusual clinical presentation of the lesions observed in these two women constitutes a differential diagnosis of acquired dermolytic blisters.
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Affiliation(s)
- U Sass
- Service de Dermatologie, Centre Hospitalier Universitaire Saint-Pierre de Bruxelles, Belgique
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