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Cortelazzi C, De Felici Del Giudice MB, Pierobon E, Pellacani G, Di Nuzzo S. Corrigendum: Sunshine on 'Zebra People'. J Eur Acad Dermatol Venereol 2021; 36:313. [PMID: 34213028 DOI: 10.1111/jdv.17438] [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: 11/30/2022]
Affiliation(s)
- C Cortelazzi
- Department of Dermatology, University of Modena and Reggio Emilia, Modena, Italy
| | | | - E Pierobon
- Department of Medicine and Surgery, Dermatology Unit, University of Parma, Parma, Italy
| | - G Pellacani
- Department of Dermatology, University of Modena and Reggio Emilia, Modena, Italy
| | - S Di Nuzzo
- Department of Medicine and Surgery, Dermatology Unit, University of Parma, Parma, Italy
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2
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Cortelazzi C, Pellacani G, Raposio E, Di Nuzzo S. Vitiligo management: combination of surgical treatment and phototherapy under reflectance confocal microscopy monitoring. Eur Rev Med Pharmacol Sci 2021; 24:7366-7371. [PMID: 32706075 DOI: 10.26355/eurrev_202007_21904] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Vitiligo is a chronic acquired pigmentary skin disorder characterized by well-defined asymptomatic white macule as a result of loss of functional melanocytes in the epidermis. The psychological burden experienced by patients is of great interest and consequently research of the best medical approach is constantly developing. This review focuses on surgical approach and the combination of surgery and phototherapy. In addition, reflectance confocal microscopy (RCM) could be useful to discriminate between stable or active vitiligo and to evaluate efficacy of therapy. MATERIALS AND METHODS We searched PubMed with the following keywords: (vitiligo[Title/Abstract]) AND therapy[Title/Abstract]) AND surgery[Title/Abstract]) AND phototherapy[Title/Abstract]) AND reflectance confocal microscopy[Title/Abstract]). RESULTS To date, surgery is an effective therapeutic approach in stable vitiligo. Phototherapy, which is the most effective medical option, can improve the results obtained with surgery if performed in combination. Preliminary data show that RCM help physician in evaluating stability of vitiligo and is also useful to monitor clinical response. CONCLUSIONS Vitiligo is a psychosocially debilitating disease requiring a multidisciplinary approach. Even if a standard management could not be stated, combination of surgery and phototherapy in stable vitiligo could lead to great improvement than monotherapy. RCM is a modern tool which should be used in order to perform surgery and phototherapy properly and to subsequently evaluate efficacy on a microscopic level.
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Affiliation(s)
- C Cortelazzi
- Department of Dermatology, University of Modena and Reggio Emilia, Modena, Italy.
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3
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Cortelazzi C, De Felici Del Giudice MB, Pierobon E, Pellacani G, Di Nuzzo S. Sunshine on 'Zebra People'. J Eur Acad Dermatol Venereol 2021; 35:e333-e335. [PMID: 33330994 DOI: 10.1111/jdv.17088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 11/26/2020] [Accepted: 12/07/2020] [Indexed: 11/27/2022]
Affiliation(s)
- C Cortelazzi
- Department of Dermatology, University of Modena and Reggio Emilia, Modena, Italy
| | | | - E Pierobon
- Department of Medicine and Surgery, Dermatology Unit, University of Parma, Parma, Italy
| | - G Pellacani
- Department of Dermatology, University of Modena and Reggio Emilia, Modena, Italy
| | - S Di Nuzzo
- Department of Medicine and Surgery, Dermatology Unit, University of Parma, Parma, Italy
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4
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Di Nuzzo S, Bertolani M, Casanova D, Manuguerra R, de Felici Del Giudice MB, Feliciani C. A case of acquired disseminated elastosis perforans serpiginosa in a patient with HIV, hepatitis B and hepatitis C successfully treated with narrowband ultraviolet B therapy. Clin Exp Dermatol 2020; 46:219-222. [PMID: 32931593 DOI: 10.1111/ced.14436] [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: 05/27/2020] [Revised: 07/09/2020] [Accepted: 08/09/2020] [Indexed: 12/01/2022]
Affiliation(s)
- S Di Nuzzo
- Section of Dermatology, Department of Clinical and Experimental Medicine, University of Parma, Parma, Italy
| | - M Bertolani
- Section of Dermatology, Department of Clinical and Experimental Medicine, University of Parma, Parma, Italy
| | - D Casanova
- Section of Dermatology, Department of Clinical and Experimental Medicine, University of Parma, Parma, Italy
| | - R Manuguerra
- Department of Pathology, University of Parma, Parma, Italy
| | - M B de Felici Del Giudice
- Section of Dermatology, Department of Clinical and Experimental Medicine, University of Parma, Parma, Italy
| | - C Feliciani
- Section of Dermatology, Department of Clinical and Experimental Medicine, University of Parma, Parma, Italy
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5
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Filippi F, Odorici G, Conti A, Di Lernia V, Di Nuzzo S, Chessa MA, Corazza M, Patrizi A, Bardazzi F. Biological therapy in psoriatic patients whishing fatherhood: a multi-centre italian experience in real life. J Eur Acad Dermatol Venereol 2020; 34:e468-e470. [PMID: 32181535 DOI: 10.1111/jdv.16376] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 03/03/2020] [Accepted: 03/10/2020] [Indexed: 11/28/2022]
Affiliation(s)
- F Filippi
- Department of Experimental, Diagnostic and Specialty Medicine, Division of Dermatology, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - G Odorici
- Department of Surgical, Medical, Dental and Morphological Sciences related to Transplant, Oncology and Regenerative Medicine, Dermatology Unit, University of Modena and Reggio Emilia, Modena, Italy
| | - A Conti
- Department of Surgical, Medical, Dental and Morphological Sciences related to Transplant, Oncology and Regenerative Medicine, Dermatology Unit, University of Modena and Reggio Emilia, Modena, Italy
| | - V Di Lernia
- Dermatology Unit, Arcispedale Santa Maria Nuova-IRCCS, Reggio Emilia, Italy
| | - S Di Nuzzo
- Dermatology, Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - M A Chessa
- Department of Experimental, Diagnostic and Specialty Medicine, Division of Dermatology, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - M Corazza
- Section of Dermatology and Infectious Diseases, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - A Patrizi
- Department of Experimental, Diagnostic and Specialty Medicine, Division of Dermatology, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - F Bardazzi
- Department of Experimental, Diagnostic and Specialty Medicine, Division of Dermatology, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
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6
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Odorici G, Di Lernia V, Bardazzi F, Magnano M, Di Nuzzo S, Cortelazzi C, Lasagni C, Bigi L, Corazza M, Pellacani G, Conti A. Psoriasis and pregnancy outcomes in biological therapies: a real-life, multi-centre experience. J Eur Acad Dermatol Venereol 2019; 33:e374-e377. [PMID: 31077634 DOI: 10.1111/jdv.15671] [Citation(s) in RCA: 15] [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] [Indexed: 01/26/2023]
Affiliation(s)
- G Odorici
- Department of Surgical, Medical, Dental and Morphological Sciences related to Transplant, Oncology and Regenerative Medicine, Dermatology Unit, University of Modena and Reggio Emilia, Modena, 41124, Italy
| | - V Di Lernia
- Dermatology Unit, Arcispedale Santa Maria Nuova-IRCCS, Reggio Emilia, 42123, Italy
| | - F Bardazzi
- Department of Specialized, Division of Dermatology, Clinical and Experimental Medicine, University of Bologna, Bologna, 40138, Italy
| | - M Magnano
- Department of Specialized, Division of Dermatology, Clinical and Experimental Medicine, University of Bologna, Bologna, 40138, Italy
| | - S Di Nuzzo
- Dermatology, Department of Medicine and Surgery, University of Parma, Parma, 43126, Italy
| | - C Cortelazzi
- Dermatology, Department of Medicine and Surgery, University of Parma, Parma, 43126, Italy
| | - C Lasagni
- Department of Surgical, Medical, Dental and Morphological Sciences related to Transplant, Oncology and Regenerative Medicine, Dermatology Unit, University of Modena and Reggio Emilia, Modena, 41124, Italy
| | - L Bigi
- Department of Surgical, Medical, Dental and Morphological Sciences related to Transplant, Oncology and Regenerative Medicine, Dermatology Unit, University of Modena and Reggio Emilia, Modena, 41124, Italy
| | - M Corazza
- Section of Dermatology and Infectious Diseases, Department of Medical Sciences, University of Ferrara, Ferrara, 44124, Italy
| | - G Pellacani
- Department of Surgical, Medical, Dental and Morphological Sciences related to Transplant, Oncology and Regenerative Medicine, Dermatology Unit, University of Modena and Reggio Emilia, Modena, 41124, Italy
| | - A Conti
- Department of Surgical, Medical, Dental and Morphological Sciences related to Transplant, Oncology and Regenerative Medicine, Dermatology Unit, University of Modena and Reggio Emilia, Modena, 41124, Italy
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7
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Pagliarello C, Scrivani S, Fabrizi G, Feliciani C, Di Nuzzo S. An under-recognized, life-threatening complication of atopic dermatitis. Clin Exp Dermatol 2017; 42:831-832. [PMID: 28597997 DOI: 10.1111/ced.13171] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/20/2016] [Indexed: 10/19/2022]
Affiliation(s)
- C Pagliarello
- Section of Dermatology, Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - S Scrivani
- Section of Dermatology, Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - G Fabrizi
- Istituto Dermopatico dell'Immacolata, IDI IRCCS, Rome, Italy
| | - C Feliciani
- Section of Dermatology, Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - S Di Nuzzo
- Section of Dermatology, Department of Medicine and Surgery, University of Parma, Parma, Italy
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Martini D, Rossi S, Biasini B, Zavaroni I, Bedogni G, Musci M, Pruneti C, Passeri G, Ventura M, Di Nuzzo S, Galli D, Mirandola P, Vitale M, Dei Cas A, Bonadonna RC, Del Rio D. Claimed effects, outcome variables and methods of measurement for health claims proposed under European Community Regulation 1924/2006 in the framework of protection against oxidative damage and cardiovascular health. Nutr Metab Cardiovasc Dis 2017; 27:473-503. [PMID: 28434807 DOI: 10.1016/j.numecd.2017.01.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 01/30/2017] [Accepted: 01/31/2017] [Indexed: 12/20/2022]
Abstract
BACKGROUND AND AIMS The high number of negative opinions from the European Food Safety Authority (EFSA) to the requests for authorization of health claims is largely due to the design of human intervention studies, including the inappropriate choice of outcome variables (OVs) and of their methods of measurement (MMs). The present manuscript reports the results of an investigation aimed to collect, collate and critically analyse the information in relation to claimed effects, OVs and MMs, in the context of protection against oxidative damage and cardiovascular health compliant with Regulation 1924/2006. METHODS AND RESULTS Claimed effects, OVs and the related MMs were collected from EFSA Guidance documents and applications for authorization of health claims under Articles 13.5 and 14. The OVs and their MMs were evaluated only if the claimed effect was sufficiently defined and was considered beneficial by EFSA. The collection, collation and critical analysis of the relevant scientific literature consisted in the definition of the keywords, the PubMed search strategies and the creation of databases of references. The critical analysis of the OVs and their MMs was performed on the basis of the literature review and was aimed at defining the appropriateness of OVs and MMs in the context of the specific claimed effects. CONCLUSIONS The information provided in this document could serve to EFSA for the development of further guidance on the scientific requirements for health claims, as well as to the stakeholders for the proper design of human intervention studies aimed to substantiate such health claims.
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Affiliation(s)
- D Martini
- The Laboratory of Phytochemicals in Physiology, Department of Food and Drug, University of Parma, Parma, Italy
| | - S Rossi
- The Laboratory of Phytochemicals in Physiology, Department of Food and Drug, University of Parma, Parma, Italy
| | - B Biasini
- The Laboratory of Phytochemicals in Physiology, Department of Food and Drug, University of Parma, Parma, Italy
| | - I Zavaroni
- Department of Medicine and Surgery, Division of Endocrinology, University of Parma, Italy; Azienda Ospedaliera Universitaria of Parma, Parma, Italy
| | - G Bedogni
- Clinical Epidemiology Unit, Liver Research Center, Basovizza, Trieste, Italy
| | - M Musci
- Department of Food and Drug, University of Parma, Parma, Italy
| | - C Pruneti
- Department of Medicine and Surgery, Clinical Psychology Unit, University of Parma, Medical School Building, Parma, Italy
| | - G Passeri
- Department of Medicine and Surgery, Building Clinica Medica Generale, University of Parma, Parma, Italy
| | - M Ventura
- Department of Chemistry, Life Sciences and Environmental Sustainability, Laboratory of Probiogenomics, University of Parma, Parma, Italy
| | - S Di Nuzzo
- Department of Medicine and Surgery, Section of Dermatology, University of Parma, Parma, Italy
| | - D Galli
- Department of Medicine and Surgery, Sport and Exercise Medicine Centre (SEM), University of Parma, Parma, Italy
| | - P Mirandola
- Department of Medicine and Surgery, Sport and Exercise Medicine Centre (SEM), University of Parma, Parma, Italy
| | - M Vitale
- Department of Medicine and Surgery, Sport and Exercise Medicine Centre (SEM), University of Parma, Parma, Italy
| | - A Dei Cas
- Department of Medicine and Surgery, Division of Endocrinology, University of Parma, Italy; Azienda Ospedaliera Universitaria of Parma, Parma, Italy
| | - R C Bonadonna
- Department of Medicine and Surgery, Division of Endocrinology, University of Parma, Italy; Azienda Ospedaliera Universitaria of Parma, Parma, Italy
| | - D Del Rio
- The Laboratory of Phytochemicals in Physiology, Department of Food and Drug, University of Parma, Parma, Italy.
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9
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Pagliarello C, Fabrizi G, Ricci R, Tabolli S, Feliciani C, Di Nuzzo S. Side predominance of squamous cell carcinoma: further evidence. J Eur Acad Dermatol Venereol 2015; 30:1226-7. [PMID: 25864957 DOI: 10.1111/jdv.13156] [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: 11/30/2022]
Affiliation(s)
- C Pagliarello
- Section of Dermatology, Section of Pathology, Department of Clinical and Experimental Medicine, Parma Medical School, Parma, Italy
| | - G Fabrizi
- Section of Dermatology, Section of Pathology, Department of Clinical and Experimental Medicine, Parma Medical School, Parma, Italy
| | - R Ricci
- Section of Dermatology, Section of Pathology, Department of Clinical and Experimental Medicine, Parma Medical School, Parma, Italy
| | - S Tabolli
- Health Services Research Unit, Istituto Dermopatico dell'Immacolata-Istituto di Ricovero e Cura a Carattere Scientifico (IDI-IRCCS), Rome, Italy
| | - C Feliciani
- Section of Dermatology, Section of Pathology, Department of Clinical and Experimental Medicine, Parma Medical School, Parma, Italy
| | - S Di Nuzzo
- Section of Dermatology, Section of Pathology, Department of Clinical and Experimental Medicine, Parma Medical School, Parma, Italy
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10
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Pagliarello C, Fabrizi G, Cortelazzi C, Boccaletti V, Feliciani C, Di Nuzzo S. Psoriasis and seborrheic dermatitis in infancy and childhood. GIORN ITAL DERMAT V 2014; 149:683-691. [PMID: 25315289] [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: 06/04/2023]
Abstract
Psoriasis is a common inflammatory dermatosis that may be seen in infants, children, and adolescents. The clinical presentation and course may be quite variable, and while patients with mild disease are often easily managed, those with recalcitrant or more severe disease often present a therapeutic dilemma given the number of therapies available and the relative lack of data on the efficacy and safety of use of these therapies in children. Diagnosis in children can be more difficult, but family history may be helpful. Moreover, sometimes clinical pattern of pediatric psoriasis is very different from its adult counterpart or it could manifests in association with atopic dermatitis, and for these reason it is possibly misdiagnosed and under recognized. We therefore focus on diagnostic patterns and effective treatments of this challenging disease.
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Affiliation(s)
- C Pagliarello
- Section of Dermatology, Department of Surgical Sciences, Parma Medical School, Parma, Italy -
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11
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Boccaletti V, Di Nuzzo S, Feliciani C, Fabrizi G, Pagliarello C. An update on juvenile dermatomyositis. GIORN ITAL DERMAT V 2014; 149:519-524. [PMID: 25034096] [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: 06/03/2023]
Abstract
Juvenile dermatomyositis (JDM) is a rare, severe, autoimmune disease characterized by a small-vessel vasculopathy that primarily affects skin and muscle, but also lung, joints, gut and heart. Nowadays prompt recognition of this entity and aggressive treatment, when needed, improves outcomes and has decreased mortality that, before corticosteroid became a mainstay in therapy, could reach 40%.
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Affiliation(s)
- V Boccaletti
- Clinica Dermatologica Università degli Studi di Parma, Parma, Italia -
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12
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Gisondi P, Amerio P, Amoroso GF, Antonucci VA, Bardazzi F, Buongiorno MR, Bruni P, Campanati A, Caproni M, Carlesimo M, Carrera CG, Cianchino G, Cimmino G, Costanzo A, Cozzani E, Dapavo P, D'amico D, De Simone C, Del Giglio M, Di Nuzzo S, Gai F, Galluccio AG, Goffredo A, Gualdi G, Guarneri C, Kokelj F, Lasagni C, Loconsole F, Longo V, Malagoli P, Miracapillo A, Mugheddu C, Parodi A, Pellegrino M, Peserico A, Piaserico S, Pistone G, Potenza C, Plumari A, Stingeni L, Strippoli D, Travaglino M, Girolomoni G. Optimization of systemic treatments for chronic plaque psoriasis. Recommendations for switching and transitioning. GIORN ITAL DERMAT V 2013; 148:1-10. [PMID: 24675369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
AIM The aim of this study was to provide practical recommendations for optimizing the use of conventional and biological systemic treatments for moderate-severe chronic plaque psoriasis, particularly in case of transitioning and switching. METHODS A total number of 147 dermatologists from 33 different countries including Italy achieved consensus in providing practical recommendations for the use of conventional and biological treatments for moderate to severe psoriasis based on systematic literature review and/or expert opinion. RESULTS In general, the continuous treatment regimen should be preferred in order to achieve a complete and long-term control of psoriasis. However, the treatment could be stopped or the dose reduced in case of complete disease clearance. A conventional drug could be associated to biological treatment in selected cases. Transitioning and/or switching could be considered in case of inefficacy or intolerance. A period of wash up is required if transitioning or switching is due to safety issues. CONCLUSION This study provides practical suggestions for the optimal use of conventional and biological treatments for chronic plaque psoriasis.
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Affiliation(s)
- P Gisondi
- Clinica Dermatologica, Università degli Studi di Verona, Verona, Italia -
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Abstract
Vitiligo is a disease characterized by the loss of melanocytes, resulting in progressive depigmentation of skin, and areas of normally pigmented skin can be of cosmetic concern. Several options have been tried to remove the pigment and make the skin a more even colour. We present an easy and effective therapeutic procedure based on single-session cryotherapy followed by topical 4-hydroxyanisole (4-HA).
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Affiliation(s)
- S Di Nuzzo
- Section of Dermatology, Department of Surgical Sciences, University of Parma, Via Gramsci 14, I-43100 Parma, Italy.
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14
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Orciari S, Di Nuzzo S, Lazzarini R, Caprari P, Procopio A, Catalano A. The Effects of Insulin and Insulin-Like Growth Factors on Tumor Vascularization: New Insights of Insulin-Like Growth Factor Family in Cancer. Curr Med Chem 2009; 16:3931-42. [DOI: 10.2174/092986709789352268] [Citation(s) in RCA: 3] [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: 04/12/2009] [Accepted: 07/26/2009] [Indexed: 11/22/2022]
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Di Nuzzo S, Sylva-Steenland RM, Koomen CW, de Rie MA, Das PK, Bos JD, Teunissen MB. Exposure to UVB induces accumulation of LFA-1+ T cells and enhanced expression of the chemokine psoriasin in normal human skin. Photochem Photobiol 2000. [PMID: 10989609 DOI: 10.1562/0031-8655(2000)072<0374: etuiao>2.0.co; 2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Normal human skin shows preferential (epi)dermal infiltration of CD4+ T cells upon acute UV exposure. To study the mechanism behind this feature we locally exposed healthy volunteers to doses of UV commonly encountered by the population. Expression of integrins on T cells and expression of adhesion molecules on dermal endothelial cells were quantitatively assessed by immunohistochemistry in situ. We also investigated the effects of ultraviolet-B (UVB) exposure on psoriasin and IL-16, two specific chemoattractant factors for CD4+ T cells, at messenger RNA (mRNA) level by semiquantitative reverse transcriptase-polymerase chain reaction and at protein level by immunohistochemistry. We found, at day 2 after exposure to four minimal erythema doses of UVB, predominant accumulation of LFA-1+/CLA-/VLA-4- T cells in the dermis. Concomitantly the expression of ICAM-1, but not that of E-selectin and VCAM-1, was upregulated on dermal endothelial cells. The increase in the number of dermal T cells was not due to proliferation because only 2% of the UVB-induced dermal T cells expressed the marker of proliferation Ki-67. Whereas exposure to 35 J/cm2 of ultraviolet-A (UVA), like UVB, induced a loss of intraepidermal T cells at day 2 after exposure, UVA induced neither any influx of T cells into the dermis nor any adhesion molecule upregulation on endothelial cells. In response to UVB exposure, the expression of psoriasin mRNA, but not of IL-16 mRNA, was upregulated; the expression of psoriasin protein was also found to be upregulated. These results suggest that LFA-1/ICAM-1 pathway and psoriasin are both involved in the accumulation of CD4+ T cells into UVB-irradiated skin, possibly via a recruitment mechanism.
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Affiliation(s)
- S Di Nuzzo
- Department of Dermatology, Academic Medical Center, University of Amsterdam, The Netherlands.
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16
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Di Nuzzo S, Sylva-Steenland RM, Koomen CW, de Rie MA, Das PK, Bos JD, Teunissen MB. Exposure to UVB induces accumulation of LFA-1+ T cells and enhanced expression of the chemokine psoriasin in normal human skin. Photochem Photobiol 2000; 72:374-82. [PMID: 10989609 DOI: 10.1562/0031-8655(2000)072<0374:etuiao>2.0.co;2] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.7] [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: 12/25/2022]
Abstract
Normal human skin shows preferential (epi)dermal infiltration of CD4+ T cells upon acute UV exposure. To study the mechanism behind this feature we locally exposed healthy volunteers to doses of UV commonly encountered by the population. Expression of integrins on T cells and expression of adhesion molecules on dermal endothelial cells were quantitatively assessed by immunohistochemistry in situ. We also investigated the effects of ultraviolet-B (UVB) exposure on psoriasin and IL-16, two specific chemoattractant factors for CD4+ T cells, at messenger RNA (mRNA) level by semiquantitative reverse transcriptase-polymerase chain reaction and at protein level by immunohistochemistry. We found, at day 2 after exposure to four minimal erythema doses of UVB, predominant accumulation of LFA-1+/CLA-/VLA-4- T cells in the dermis. Concomitantly the expression of ICAM-1, but not that of E-selectin and VCAM-1, was upregulated on dermal endothelial cells. The increase in the number of dermal T cells was not due to proliferation because only 2% of the UVB-induced dermal T cells expressed the marker of proliferation Ki-67. Whereas exposure to 35 J/cm2 of ultraviolet-A (UVA), like UVB, induced a loss of intraepidermal T cells at day 2 after exposure, UVA induced neither any influx of T cells into the dermis nor any adhesion molecule upregulation on endothelial cells. In response to UVB exposure, the expression of psoriasin mRNA, but not of IL-16 mRNA, was upregulated; the expression of psoriasin protein was also found to be upregulated. These results suggest that LFA-1/ICAM-1 pathway and psoriasin are both involved in the accumulation of CD4+ T cells into UVB-irradiated skin, possibly via a recruitment mechanism.
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Affiliation(s)
- S Di Nuzzo
- Department of Dermatology, Academic Medical Center, University of Amsterdam, The Netherlands.
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De Rie MA, Di Nuzzo S, Brands S, Hansen AB, Bos JD. Calcipotriol ointment and cream or their vehicles applied immediately before irradiation inhibit ultraviolet B-induced erythema. Br J Dermatol 2000; 142:1160-5. [PMID: 10848740 DOI: 10.1046/j.1365-2133.2000.03542.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Results of ultraviolet (UV) B phototherapy can be improved by the application of calcipotriol, but studies are needed to decide how the two treatments should be combined. We studied the effect of UVB after application of calcipotriol ointment (50 microg g-1) and calcipotriol cream (50 microg g-1) and determined the optimal time of application of calcipotriol when combined with UVB phototherapy (280-350 nm), in a single-blinded randomized vehicle-controlled study of 37 healthy adult volunteers. Calcipotriol ointment or cream was applied randomly on five areas on the back at different time intervals from UVB irradiation. One area was left untreated as the control. Application times were the evening before, the morning before, 2 h before, immediately before, and immediately after irradiation. UVB irradiation was administered by TL20W/12 fluorescent tube lamps at increasing doses (20, 25, 32, 40, 50 and 64 mJ cm-2) to six subunits of each test area. Clinical assessment was performed 24 h after UVB irradiation by a blinded investigator. Calcipotriol ointment and cream were applied in 19 and 18 subjects, respectively, and erythema was measured for each application time quantified. We found that erythemal reactions were significantly smaller when calcipotriol ointment or cream was applied immediately before irradiation compared with all other application times. To explain these findings, a vehicle control study was performed. No difference in erythema was seen between calcipotriol medication and the vehicle controls. Spectrophotometric analysis of the calcipotriol cream and ointment showed no UV absorbance in the UVB range. No signs of photosensitization were noted. In conclusion, the vehicles of the calcipotriol ointment and cream inhibit the induction of erythema by UVB irradiation if applied immediately before phototherapy. Consequently, calcipotriol ointment and cream should not be applied directly before UVB irradiation; however, they may be applied at any time up to 2 h prior to or immediately after UVB irradiation. Possible explanations for this sunscreen activity are discussed.
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Affiliation(s)
- M A De Rie
- Department of Dermatology, Academic Medical Centre, University of Amsterdam, PO Box 22700, 1100 DE Amsterdam, The Netherlands.
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Di Nuzzo S, Sylva-Steenland RM, de Rie MA, Das PK, Bos JD, Teunissen MB. UVB radiation preferentially induces recruitment of memory CD4+ T cells in normal human skin: long-term effect after a single exposure. J Invest Dermatol 1998; 110:978-81. [PMID: 9620309 DOI: 10.1046/j.1523-1747.1998.00220.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Acute, low-doses of ultraviolet (UV)-B radiation affect the immune competent cells of the skin immune system. In this study, we examined the time-dependent changes of the cutaneous T cell population in normal human volunteers following a single local exposure to UV. Solar-simulated UV radiation caused an initial decrease in intraepidermal T cell numbers, even leading to T cell depletion at day 4, whereupon a considerable infiltration of T cells in the epidermis occurred that peaked at day 14. In the dermis the number of T cells was markedly increased at days 2 (peak) and 4 after irradiation, and subsequently declined to the nonirradiated control values at day 10. Double-staining with several T cell markers showed that the T cells, infiltrating the (epi)dermis upon UV exposure, were almost exclusively CD4+ CD45RO+ T cells, expressing an alpha/beta type T cell receptor, but lacking the activation markers HLA-DR, VLA-1, and IL-2R. Application of UVB radiation resulted in similar dynamics of T cells, indicating that the UVB wavelengths within the solar-simulated UV radiation were responsible for the selective influx of CD4+ T cells. In conjunction with UVB-induced alterations in the type and function of antigen-presenting cells (i.e., Langerhans cells and macrophages), the changes of the cutaneous T cell population may also contribute to UVB-induced immunosuppression at skin level in man.
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Affiliation(s)
- S Di Nuzzo
- Department of Dermatology, Academic Medical Center, University of Amsterdam, The Netherlands
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Di Nuzzo S, de Rie MA, van der Loos CM, Bos JD, Teunissen MB. Solar-simulated ultraviolet irradiation induces selective influx of CD4+ T lymphocytes in normal human skin. Photochem Photobiol 1996; 64:988-93. [PMID: 8972643 DOI: 10.1111/j.1751-1097.1996.tb01866.x] [Citation(s) in RCA: 22] [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: 02/03/2023]
Abstract
The proportion and composition of the human cutaneous CD3+ T lymphocyte population was determined in situ following a single exposure to physiological, erythema-inducing doses of simulated solar radiation, mainly consisting of UV radiation. Biopsies were taken 1, 2 and 7 days after local irradiation of normal volunteers with 1, 2 and 4 MED by a xenonarc lamp and immunohistochemistry was performed on cryostat sections. Ultraviolet radiation caused an initial decrease of intraepidermal CD3+ T-cell numbers or even could lead to T-cell depletion 24 and 48 h postirradiation, and this was followed by an infiltration of T cells in the epidermis as determined 1 week after UV exposure. The number of dermal CD3+ T cells was increased 24 h after irradiation, reached a maximum at 48 h and subsequently declined at day 7, though remained significantly higher than the unirradiated control. Double staining demonstrated that the CD3+ T cells, which immigrated into the (epi)dermis upon UV exposure, coexpressed CD4 but not CD8. Therefore the CD4/CD8 ratio in skin was markedly increased during the first week upon UV exposure. Our time course study shows that UV radiation affects the T-cell population within human skin by depleting the majority of epidermal T cells and initiating a selective influx of CD4+ T cells.
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Affiliation(s)
- S Di Nuzzo
- Department of Dermatology, University of Amsterdam, The Netherlands
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