Publications by authors named "Ezzedine K"

Background: Inherited ichthyoses are associated with impaired quality of life (QoL).

Objectives: The aim of this study was to create and validate a QoL questionnaire specifically dedicated to patients with ichthyosis.

Methods: A prequestionnaire was drawn after selecting items from a verbatim transcript.

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Background: Sleep lines are caused by individual's sleeping positions and should be differentiated from expression wrinkles.

Objective: The aim of the study was to investigate possible risk factors for sleep lines on a sizeable sample of middle-aged Caucasian women.

Methods: This study involved a sample of 542 French middle-aged women (44 to 70 years old) from Paris area.

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The relation of vitiligo/non-segmental vitiligo (NSV) to Koebner's phenomenon is variably appreciated. Our objective was to develop and validate a simple clinical score for Koebner's phenomenon (KP) in patients with vitiligo/NSV. The study population was composed of 351 individuals in the development sample and 285 patients in the validation sample.

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Background: Xeroderma pigmentosum type C (XP-C) is a rare, autosomal, recessive condition characterized by the association of various clinical manifestations mostly involving the skin and eyes.

Objectives: To evaluate the clinical manifestations in a homogeneous, genetically characterized cohort of patients with XP-C.

Methods: All patients with XP-C, which was confirmed genetically or by unscheduled DNA synthesis, from the registry of our department and from the French association of patients 'Les Enfants de la Lune' were contacted.

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Background: Vitiligo/nonsegmental vitiligo (NSV) is often associated with thyroid dysimmunity although very few reports have studied this association using multivariate logistic regression.

Objective: To identify weighted factors associated with the presence of autoimmune thyroid disease (AITD) in a large cohort of patients with vitiligo/NSV.

Methods: This was a prospective observational study in 626 patients with a confirmed diagnosis of vitiligo/NSV attending the vitiligo clinic of the University Hospital Department of Dermatology, Bordeaux, France, from 1 January 2006 to 1 May 2012.

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A genome-wide association study (GWAS) was conducted on 502 French middle-aged Caucasian women to identify genetic factors that may affect skin aging severity. A high-throughput Illumina Human Omni1-Quad beadchip was used. After single-nucleotide polymorphism (SNP) quality controls, 795,063 SNPs remained for analysis purposes.

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Background: Imatinib mesylate is a potent inhibitor of platelet-derived growth factor and transforming growth factor-β signalling pathways which may play a role in systemic sclerosis (SSc)-associated skin changes.

Objectives: We aimed primarily at assessing the efficacy of imatinib mesylate in scleroderma skin fibrosis.

Methods: We performed a phase II double-blinded trial on patients with scleroderma with either morphoea involving > 20% of body surface area or SSc with extensive skin involvement: modified Rodnan Skin Score (mRSS) ≥ 20/51.

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Background: Intake of monounsaturated fatty acids has been reported to reduce oxidative stress, insulin resistance and related inflammatory processes and may thus protect from skin photoaging. The objective of this study was to investigate the association between the risk of photoaging, monounsaturated fatty acids intake and the sources of monounsaturated fatty acids.

Methodology/principal Findings: A cross sectional study was conducted within the framework of the SUVIMAX cohort.

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Background: To date, few epidemiological data on the relationships between solar lentigines, freckles and behavioural and constitutional risk factors in Caucasian populations exist.

Objectives: To investigate the potential impact of behavioural and phenotypic variables, as well as the MC1R genetic background, on the history of facial freckles and the severity of solar lentigines in Caucasian women.

Methods: The severity of solar lentigines was graded from facial digital images of 523 French middle-aged women by a dermatologist and summarized by a score afterwards.

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The aetiopathogenic mechanisms of vitiligo are still poorly understood, and this has held back progress in diagnosis and treatment. Up until now, treatment guidelines have existed at national levels, but no common European viewpoint has emerged. This guideline for the treatment of segmental and nonsegmental vitiligo has been developed by the members of the Vitiligo European Task Force and other colleagues.

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Background: The combination of systemic pulse corticosteroids and methotrexate in the treatment of severe alopecia areata has never been reported.

Objective: The objective of this work was to give arguments for the efficacy and safety of this combined treatment.

Methods: This was a retrospective case series of patients treated with intravenous 500 mg methylprednisolone per day for 3 consecutive days monthly during 3 months plus methotrexate initiated at the end of the second pulse regimen.

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Background: Exogenous acne refers to acneiform lesions due to external factors such as cosmetic agents, exposure to various oils, skin rubbing or friction or chloracne, now better called metabolizing acquired dioxin-induced skin hamartoma (MADISH). Here we report a new form of severe inflammatory exogenous acne due to the association of two factors: facial friction with cosmetic agents.

Observations: A 15-, 17- and 19-year-old female presented at the department with severe inflammatory acne.

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Background: Loss of function FLG alleles were first identified as causative of ichthyosis vulgaris (IV) and were subsequently found to be major predisposing factors for atopic dermatitis (AD) and atopic disorders.

Objectives: To identify independent factors associated with the clinical IV phenotype in adult caucasian patients with AD and to assess the performance of a global clinical severity score of IV in predicting common FLG null mutations.

Patients And Methods: This was a prospective study conducted from January 2007 to June 2008.

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We previously reported a genome-wide association study (GWAS) identifying 14 susceptibility loci for generalized vitiligo. We report here a second GWAS (450 individuals with vitiligo (cases) and 3,182 controls), an independent replication study (1,440 cases and 1,316 controls) and a meta-analysis (3,187 cases and 6,723 controls) identifying 13 additional vitiligo-associated loci. These include OCA2-HERC2 (combined P = 3.

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Background: Limited epidemiological data exist that compare clinical features of pre- and post-pubertal nonsegmental vitiligo.

Objectives: To compare factors associated with pre- and post-pubertal onset vitiligo.

Patients And Methods: A prospective observational study was conducted of patients with vitiligo attending the clinic between 1 January 2006 and 1 July 2011.

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Objective: To compare factors associated with halo nevi with nonsegmental vitiligo (NSV) vs NSV alone.

Design: Prospective observational study in 553 patients with a confirmed diagnosis of NSV attending a vitiligo clinic between January 1, 2006, and July 1, 2010.

Setting: Vitiligo Clinic at the Department of Dermatology, University Hospital Center of Bordeaux, Bordeaux, France.

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Dapsone has potent anti-inflammatory effects and remains an effective therapy in a variety of skin disorders: cutaneous vasculitis, neutrophilic dermatoses and blistering disorders. However it may cause a severe idiosyncratic reaction compatible with drug-induced DRESS (drug reaction with eosinophilia and systemic symptoms) leading to the discontinuation of the treatment despite its effectiveness. We report a 68-year-old woman who was successfully treated with dapsone for erythema elevatum diutinum.

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We have hypothesised that melanocytes disappear in vitiligo because they are weakly attached to the epidermal basal membrane (melanocytorrhagy). In the epidermis, attachment of melanocytes to collagen IV is mediated through DDR1, which is under the control of CCN3. DDR1 genetic variants have been associated with vitiligo in patients of different ethnic origin.

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Background: Although the exact pathogenesis of vitiligo is not fully understood, it appears to be an autoimmune disease. It is hypothesized that tumor necrosis factor alpha (TNF-?) plays an important role in vitiligo. TNF-? can destroy melanocytes through the induction of various apoptotic pathways.

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