Am J Clin Dermatol
May 2005
In women, acne can be successfully treated with oral contraceptives. This article focuses on the results of clinical studies on the treatment of acne with oral contraceptives. From the literature, 12 such studies could be traced over the last 10 years.
View Article and Find Full Text PDFThe glucagonoma syndrome is a rare disease in which a typical skin disorder, necrolytic migratory erythema, is often one of the first presenting symptoms. Weight loss and diabetes mellitus are two other prevalent characteristics of this syndrome. Necrolytic migratory erythema belongs to the recently recognized family of deficiency dermatoses of which zinc deficiency, necrolytic acral erythema and pellagra are also members.
View Article and Find Full Text PDFUrocanic acid (UCA) is a major UV-absorbing chromophore in the epidermis and has been suggested to act as one of the initiators of UV-induced immunosuppression. cis-UCA, the isomer from UCA that is formed upon UV exposure, has been shown to impair some cellular immune responses. cis-UCA levels were determined in a study in which the influence of ultraviolet B (UVB) exposure on immune responses after hepatitis B vaccination in human volunteers was established.
View Article and Find Full Text PDFPimozide is widely used in psychiatry for chronic psychoses, schizophrenia, the syndrome of Gilles de la Tourette and to a certain extent, also in dermatology. The only dermatological indication is for delusions of parasitosis. Though there is a good rationale for using pimozide in this disease, the majority of the studies on pimozide in dermatology are uncontrolled trials and case reports.
View Article and Find Full Text PDFBackground: Treatment of early-stage mycosis fungoides (MF) consists of topical steroids, phototherapy (UVB), photochemotherapy (psoralen plus UVA [PUVA]), topical nitrogen mustard, or total skin electron-beam irradiation. It has been reported that the same effective UVB dose is safer than PUVA regarding carcinogenicity and produces fewer side effects. Narrowband UVB (311 nm) results in less irritation and erythema and is more effective compared with broadband UVB.
View Article and Find Full Text PDFA new oral contraceptive has been developed that contains a unique progestogen, drospirenone (DRSP), and that has both antiandrogenic and antimineralocorticoid activity. Our objective was to compare the effect of 30 microg ethinyl estradiol (EE)/3 mg DRSP (EE/DRSP; Yasmin, Schering AG, Berlin, Germany) with that of 35 microg EE/2 mg cyproterone acetate (EE/CPA; Diane-35, Schering AG, Berlin, Germany) on mild-to-moderate cases of acne. Diane-35 is used worldwide (it is not on the market in the United States and Japan) as a hormone treatment for acne, with additional contraceptive benefits.
View Article and Find Full Text PDFUltraviolet light exposure can impair immune responses that are not restricted to the exposed skin but is also found at other sites, i.e. systemic immunosuppression.
View Article and Find Full Text PDFUltraviolet B radiation can suppress cellular immunity. One of the mechanisms related to this immunosuppression is the disappearance of Langerhans cells from the epidermis. The aim of this study was to establish the mechanism of ultraviolet B-induced Langerhans cell disappearance in healthy individuals.
View Article and Find Full Text PDFBackground: Most clinical studies using photodynamic therapy (PDT) with topical application of delta-aminolaevulinic acid (delta-ALA) use red light because it allows greater depth of penetration. However, given the porphyrin-like spectrum of delta-ALA-induced photosensitivity, violet light provides a maximal overlap with the excitation spectrum of protoporphyrin IX, meaning that PDT with violet light uses less light energy to induce the phototoxic reaction.
Aim: To study the efficacy of violet light in combination with topical delta-ALA PDT in the treatment of pre-malignant and malignant skin lesions.
Exposure to ultraviolet radiation can modulate immune responses in animal and humans. Remarkably, the ultraviolet-induced immunosuppression is not restricted to the exposed skin but is also found at other body sites, i.e.
View Article and Find Full Text PDFJ Am Acad Dermatol
November 2001
Background: Erythroderma is a rare skin disorder, and studies on its incidence and causes are lacking. The annual incidence has been estimated to be 1 to 2 patients per 100,000 inhabitants.
Objective: We investigated the incidence and cause of erythroderma in an unselected population and evaluated the referral pattern of erythrodermic patients by nonacademic dermatologists.
Background: Although knowledge concerning the impact of acne vulgaris on quality of life has increased in recent years, relatively few studies have assessed the effect of a change in clinical severity on psychosocial state.
Objective: Assessment of the effect of a change in clinical acne severity on psychosocial state.
Methods: This was investigated by means of questionnaires and clinical assessments by acne patients and dermatologists.
Purpose: Most primary cutaneous B-cell lymphomas have an excellent prognosis. However, primary cutaneous large B-cell lymphomas (PCLBCLs) of the leg have been recognized as a distinct entity with a poorer prognosis in the European Organization for Research and Treatment of Cancer (EORTC) classification. This distinction on the basis of site has been debated.
View Article and Find Full Text PDFLymphomatoid papulosis (LyP) is a chronic recurrent self-healing condition, with histological features suggestive of a malignant lymphoma. Only a few cases have been described in children. We report 10 children with this skin disease and compare them with the adult type of LyP and childhood cases described in the literature.
View Article and Find Full Text PDFBackground: Erythroderma may result from different causes. At present it is unclear whether the patho-mechanisms that lead to these different types of erythroderma are identical or different. Adhesion molecules and their ligands play a major role in endothelial-leukocyte interactions, which affect the binding, transmigration and infiltration of lymphocytes and mononuclear cells during inflammation, injury, or immunological stimulation.
View Article and Find Full Text PDFBackground: Erythroderma, or generalized erythema of the skin, may result from different causes. At present it is unclear whether the underlying patho-mechanisms that lead to erythroderma are identical or different depending on the original disease. The aim of this study was to investigate the dermal cytokine profile in different types of erythroderma and mycosis fungoides.
View Article and Find Full Text PDFFamilial cylindromatosis is an autosomal dominant predisposition to multiple neoplasms of the skin appendages. The susceptibility gene has previously been mapped to chromosome 16q12-q13 and has features of a recessive oncogene/tumour suppressor gene. We have now evaluated 19 families with this disease by a combination of genetic linkage analysis and loss of heterozygosity in cylindromas from affected individuals.
View Article and Find Full Text PDFTo evaluate our diagnostic and therapeutic guidelines, clinical and long-term follow-up data of 219 patients with primary or secondary cutaneous CD30(+) lymphoproliferative disorders were evaluated. The study group included 118 patients with lymphomatoid papulosis (LyP; group 1), 79 patients with primary cutaneous CD30(+) large T-cell lymphoma (LTCL; group 2), 11 patients with CD30(+) LTCL and skin and regional lymph node involvement (group 3), and 11 patients with secondary cutaneous CD30(+) LTCL (group 4). Patients with LyP often did not receive any specific treatment, whereas most patients with primary cutaneous CD30(+) LTCL were treated with radiotherapy or excision.
View Article and Find Full Text PDFThe nucleotide excision repair (NER) system is comprised of two subpathways, i.e., transcription-coupled repair (TCR) and global genome repair (GGR).
View Article and Find Full Text PDFObjectives: To determine the disease course of Dutch patients with mycosis fungoides and to define factors related to disease progression and survival.
Design: A multicenter, 13-year, retrospective cohort analysis.
Setting: Eight dermatology departments collaborating in the Dutch Cutaneous Lymphoma Group.