Abstract:
BACKGROUND:The accuracy of diagnosis of skin cancer and especially of early malignant melanoma is most important to reduce its morbidity and mortality. Previous pilot studies using electrical impedance measurements indicate statistically significant accuracies for the detection of skin cancer. OBJECTIVES:The aim of this study is to investigate the accuracy of electrical impedance spectra to distinguish between malignant melanoma and benign skin lesions using an automated classification algorithm. PATIENTS/METHODS:Electrical impedance spectra were measured in a multi-centre study at 12 clinics around Europe. Data from 285 histologically analysed lesions were used to train an algorithm to sort out lesions for automatic detection of melanoma. Another data cohort of 210 blinded lesions (148 various benign lesions and 62 malignant melanomas where 38 being from Breslow thickness ≤1 mm) from 183 patients was thereafter used to estimate the accuracy of the technique. RESULTS:Observed sensitivity to malignant melanoma is 95% (59/62) and observed specificity 49% (72/148). CONCLUSIONS:The results suggest that electrical impedance spectra can distinguish between malignant melanoma and benign skin lesions. Although it is indicated that the accuracy of the device is clinically promising, the overall performance, and the sensitivity to thin malignant melanomas, must be improved and thoroughly validated before the instrument can be used as a routine stand-alone diagnostic decision support tool. The technique is under revision to further improve the reproducibility, specificity and sensitivity.
journal_name
Exp Dermatoljournal_title
Experimental dermatologyauthors
Aberg P,Birgersson U,Elsner P,Mohr P,Ollmar Sdoi
10.1111/j.1600-0625.2011.01285.xsubject
Has Abstractpub_date
2011-08-01 00:00:00pages
648-52issue
8eissn
0906-6705issn
1600-0625journal_volume
20pub_type
杂志文章,多中心研究abstract::The high-frequency electrical conductance of tape-stripped human skin in vivo can be used to evaluate the hydration profile of Stratum corneum (SC). Tape-stripping provides access to the underlying SC layers, and the conductance of these layers (as measured by the Skicon instrument) correlates well with their water co...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/j.1600-0625.2009.00868.x
更新日期:2009-10-01 00:00:00
abstract::Drug resistance in melanoma is commonly attributed to ineffective apoptotic pathways. Targeting apoptosis regulators is thus considered a promising approach to sensitizing melanoma to therapy. In the previous issue of Experimental Dermatology, Plötz and Eberle discuss the role that apoptosis plays in melanoma progress...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/exd.12400
更新日期:2014-07-01 00:00:00
abstract::Chromatin-IgG complexes appear as electron dense structures (EDS) in glomerular basement membranes in lupus nephritis. Here, we present results of comparative analyses of the composition of EDS in murine lupus dermatitis and nephritis. One focus was to perform an analytical approach to understand why such complex stru...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/j.1600-0625.2010.01064.x
更新日期:2010-08-01 00:00:00
abstract::The correlation between the degrees of integrity and cohesion in healthy human Stratum corneum (SC) and the properties of the SC lipid matrix could be examined non-invasively in vivo using ATR-FTIR spectroscopy and measurements of pH, conductance, and transepidermal water loss (TEWL) taken in the course of tape-stripp...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/j.1600-0625.2010.01164.x
更新日期:2011-03-01 00:00:00
abstract::Pachyonychia congenita type 1 (PC-1) is an autosomal dominant ectodermal dysplasia characterized by hypertrophic nail dystrophy, focal non-epidermolytic palmoplantar keratoderma and variable features of oral leukokeratosis and follicular keratosis. Previously, we have shown that this disease can be caused by mutations...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/j.1600-0625.1999.tb00356.x
更新日期:1999-04-01 00:00:00
abstract::The adoptive transfer of engineered T cells represents an important approach in immunotherapy of melanoma. However, relapse of the tumor can occur due to immune-escape mechanisms developed by the tumor cells, for example antigen loss, downregulation of the major histocompatibility complex presentation machinery and de...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/exd.13095
更新日期:2016-11-01 00:00:00
abstract::Bullous pemphigoid (BP) and pemphigoid gestationis (PG) are acquired autoimmune subepidermal blistering diseases characterized by autoantibodies against the hemidesmosomal proteins BP180/type XVII collagen and BP230. In the vast majority of BP and PG patients, these autoantibodies bind to epitopes clustered within the...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/j.1600-0625.2007.00592.x
更新日期:2007-09-01 00:00:00
abstract::Serum levels of B-cell activating factor belonging to the tumor necrosis factor family (BAFF), a potent B-cell survival factor, are elevated in patients with systemic autoimmune diseases, such as systemic lupus erythematosus (SLE), rheumatoid arthritis and systemic sclerosis (SSc). The objective of this study was to d...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/j.1600-0625.2006.00485.x
更新日期:2007-02-01 00:00:00
abstract::IL-15 has emerged as a potentially relevant target in the IL-17 response in psoriasis. However, its mechanism is poorly characterized in humans. IL-15 and IL-23 are constitutively expressed in the psoriatic lesion. Also, IL-15 is considered a susceptibility-associated gene in psoriasis, as are IL-23R, and HLACW6. Here...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/exd.14113
更新日期:2020-05-31 00:00:00
abstract::External assault to the skin is followed by an epidermal response including synthesis of DNA, lipids, cytokines and migration of antigen presenting cells. MIP-3 alpha (CCL20, LARC, Exodus-1, Scya20) is a recently described C-C chemokine, predominantly expressed in extralymphoid tissue, which is known to direct migrati...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1034/j.1600-0625.2002.110205.x
更新日期:2002-04-01 00:00:00
abstract::Polychlorinated biphenyls (PCBs) and 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) are major environmental pollutants, and their effects on the human body critically depend on the aryl hydrocarbon receptor (AhR). The aim of this study was to evaluate the significance of the AhR and its ligands in chronic inflammatory ski...
journal_title:Experimental dermatology
pub_type: 信件
doi:10.1111/exd.12350
更新日期:2014-04-01 00:00:00
abstract::Adipose tissue encircles the lower portion of anagen hair follicles and may regulate hair cycle progression. As leptin is a major adipokine, its level of expression from the dermal white adipose tissue during hair cycle progression was studied. The result shows that leptin level is differentially expressed during hair...
journal_title:Experimental dermatology
pub_type: 信件
doi:10.1111/exd.12566
更新日期:2015-01-01 00:00:00
abstract::CD4+ Foxp3+ regulatory T cells (Tregs) are suppressors of immune activation and play a crucial role in the maintenance of peripheral tolerance. Mutations of Foxp3 result in fatal autoimmunity in multiple organs, including the skin, in both humans and mice. Many studies have demonstrated the altered frequency and funct...
journal_title:Experimental dermatology
pub_type: 杂志文章,评审
doi:10.1111/exd.13535
更新日期:2019-06-01 00:00:00
abstract::In the area of dermatological research, the knowledge of rate and extent of substance penetration into the human skin is essential not only for evaluation of therapeutics, but also for risk assessment of chemicals and cosmetic ingredients. Recently, confocal Raman microscopy emerged as a novel analytical technique for...
journal_title:Experimental dermatology
pub_type: 信件
doi:10.1111/exd.12542
更新日期:2014-12-01 00:00:00
abstract::The process of skin wound healing involves the following three steps: inflammation, tissue formation and tissue remodelling. These optimal steps are required for the development of normal wound healing. Recent reports demonstrated that inflammasomes are involved in the innate immune response. In the present study, we ...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/exd.13441
更新日期:2018-01-01 00:00:00
abstract::Opioids exert major effects not only in the central nervous system but also in immune responses. We investigated the effects of μ-opioid peptides, secreted by tumor cells, on anti-tumor immune responses. For this purpose, tumor growth was studied in wild-type and μ-opioid receptor-deficient (MOR-/-) mice injected with...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/j.1600-0625.2010.01158.x
更新日期:2011-01-01 00:00:00
abstract::This study demonstrates an innovative application of atomic force microscopy (AFM). The combination of high-resolution AFM technology and tape stripping is presented as a tool for the structure analysis of human stratum corneum (SC) at a nanometer scale. Topographic images with a vertical resolution of about 10 nm of ...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/j.0906-6705.2006.00424.x
更新日期:2006-05-01 00:00:00
abstract::Epidermal keratinocytes undergo a continuous process of terminal differentiation, which is accompanied by a dramatic change in the expression and composition of keratins. This complex and carefully orchestrated process is regulated by a large number of signal transduction events and transcriptional factors as well as ...
journal_title:Experimental dermatology
pub_type: 评论,杂志文章
doi:10.1111/exd.12434
更新日期:2014-09-01 00:00:00
abstract::Recognition that cellular retinoic acid binding protein (CRABP)-I and CRABP-II are found in different cell types has provided additional support for the presumably divergent roles of these two proteins in mediating retinoic acid (RA) effects in human skin. CRABP-II is expressed in fibroblasts and keratinocytes, and CR...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/j.1600-0625.1998.tb00337.x
更新日期:1998-12-01 00:00:00
abstract::Ultraviolet B (UVB) radiation induces inflammation in the skin specifically at the site of exposure. We unexpectedly found that UVB-induced inflammation was not induced in gp91phox-depleted mice. To test whether gp91phox is directly involved in UVB-induced inflammation, neutrophil- and hyaluronic acid-depleted mice we...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/exd.12032
更新日期:2012-12-01 00:00:00
abstract::In this study, we determined the adiponectin expression in the serum and lesional skin of patients with scleroderma (SSc). Serum adiponectin concentrations were measured in 32 patients with SSc, 10 patients with SLE, 12 patients with dermatomyositis patients and 13 healthy subjects with specific enzyme-linked immunoso...
journal_title:Experimental dermatology
pub_type: 信件
doi:10.1111/j.1600-0625.2011.01310.x
更新日期:2011-09-01 00:00:00
abstract::Using the indirect immunohistochemical approach, the occurrence of gamma-melanocyte stimulating hormone (gamma-MSH)-like immunoreactivity in human normal keratinocytes is described. The positive cells were observed in each layer of the epidermis (except stratum corneum) and often, at the level of the stratum spinosum,...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/j.1600-0625.1993.tb00034.x
更新日期:1993-10-01 00:00:00
abstract::Delayed wound healing is one of the major complications in diabetes and is characterized by chronic proinflammatory response, and abnormalities in angiogenesis and collagen deposition. Sirtuin family proteins regulate numerous pathophysiological processes, including those involved in promotion of longevity, DNA repair...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/exd.12762
更新日期:2015-10-01 00:00:00
abstract:BACKGROUND:Basal cell carcinoma (BCC) is the most common form of skin cancer with increasing incidence rates worldwide. METHODS:To assess the association of BCC with epidemiologic risk factors in a Southern European population from Greece, we conducted a hospital-based case-control study of 199 patients with BCC and 2...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/j.1600-0625.2011.01275.x
更新日期:2011-08-01 00:00:00
abstract::Irradiation with ultraviolet (UV) B light results in the formation of apoptotic keratinocytes called sunburn cells (SC). Although generation of SC appears to be one of the most characteristic features of UV-induced skin damage and has been a well-known phenomenon for a long time, the mechanisms involved are not quite ...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/j.1600-0625.1997.tb00138.x
更新日期:1997-02-01 00:00:00
abstract::Congenital melanocytic nevi (CMN) are benign proliferations that may be associated with various consequences depending on their size. They are characterized by a specific molecular signature, namely a postzygotic somatic NRAS or BRAF mutation. We have recently reported that large CMN (lCMN), which are classically asso...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/exd.13073
更新日期:2016-10-01 00:00:00
abstract::Canine atopic dermatitis (AD), a chronic inflammatory skin disease, shares characteristics with its human counterpart. To get insight into the role of enzymes involved in production of prostaglandin E(2) (PGE2) and leukotriene B(4) (LTB(4)), potent inflammatory mediators originating from membrane-derived arachidonic a...
journal_title:Experimental dermatology
pub_type: 信件
doi:10.1111/j.1600-0625.2009.01037.x
更新日期:2010-08-01 00:00:00
abstract::Mesenchymal stem cells (MSCs) are non-haematopoietic cells that reside in most tissues including adult bone marrow. MSCs have recently been extensively studied and used for clinical therapies, including skin wound healing. However, there are still many questions to be answered. In the viewpoint entitled 'Mesenchymal s...
journal_title:Experimental dermatology
pub_type: 评论,杂志文章
doi:10.1111/exd.12194
更新日期:2013-08-01 00:00:00
abstract::Type-1 cytokine-producing T cells are important in the pathogenesis of psoriasis vulgaris, for which efficient therapy is provided by means of narrow-band ultraviolet-B (NB-UVB). The expression of the type-1 cytokine interferon-gamma (IFN-gamma) is regulated by interleukin-12 (IL-12), IL-15, IL-18 and IL-23; however, ...
journal_title:Experimental dermatology
pub_type: 杂志文章
doi:10.1111/j.0906-6705.2004.00246.x
更新日期:2004-12-01 00:00:00
abstract::Pseudoxanthoma elasticum (PXE), a heritable multi-system disorder, is caused by mutations in the ABCC6 gene primarily expressed in the liver. Recent analysis of cultured fibroblasts from patients with PXE has suggested compensatory alterations in the expression of the ABCA-subfamily of genes. We have now determined by...
journal_title:Experimental dermatology
pub_type: 信件
doi:10.1111/j.1600-0625.2010.01240.x
更新日期:2011-05-01 00:00:00