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Publisher: Springer-Verlag (Total: 2351 journals)

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Showing 1 - 200 of 2351 Journals sorted alphabetically
3D Printing in Medicine     Open Access  
3D Research     Hybrid Journal   (Followers: 21, SJR: 0.222, CiteScore: 1)
4OR: A Quarterly J. of Operations Research     Hybrid Journal   (Followers: 10, SJR: 0.825, CiteScore: 1)
AAPS J.     Hybrid Journal   (Followers: 22, SJR: 1.118, CiteScore: 4)
AAPS PharmSciTech     Hybrid Journal   (Followers: 7, SJR: 0.752, CiteScore: 3)
Abdominal Imaging     Hybrid Journal   (Followers: 14, SJR: 0.866, CiteScore: 2)
Abhandlungen aus dem Mathematischen Seminar der Universitat Hamburg     Hybrid Journal   (Followers: 4, SJR: 0.439, CiteScore: 0)
Academic Psychiatry     Full-text available via subscription   (Followers: 23, SJR: 0.53, CiteScore: 1)
Academic Questions     Hybrid Journal   (Followers: 8, SJR: 0.106, CiteScore: 0)
Accreditation and Quality Assurance: J. for Quality, Comparability and Reliability in Chemical Measurement     Hybrid Journal   (Followers: 26, SJR: 0.316, CiteScore: 1)
Acoustical Physics     Hybrid Journal   (Followers: 11, SJR: 0.359, CiteScore: 1)
Acoustics Australia     Hybrid Journal   (SJR: 0.232, CiteScore: 1)
Acta Analytica     Hybrid Journal   (Followers: 7, SJR: 0.367, CiteScore: 0)
Acta Applicandae Mathematicae     Hybrid Journal   (Followers: 1, SJR: 0.675, CiteScore: 1)
Acta Biotheoretica     Hybrid Journal   (Followers: 4, SJR: 0.284, CiteScore: 1)
Acta Diabetologica     Hybrid Journal   (Followers: 18, SJR: 1.587, CiteScore: 3)
Acta Endoscopica     Hybrid Journal   (Followers: 1)
acta ethologica     Hybrid Journal   (Followers: 4, SJR: 0.769, CiteScore: 1)
Acta Geochimica     Hybrid Journal   (Followers: 6, SJR: 0.24, CiteScore: 1)
Acta Geodaetica et Geophysica     Hybrid Journal   (Followers: 2, SJR: 0.305, CiteScore: 1)
Acta Geotechnica     Hybrid Journal   (Followers: 7, SJR: 1.588, CiteScore: 3)
Acta Informatica     Hybrid Journal   (Followers: 5, SJR: 0.517, CiteScore: 1)
Acta Mathematica     Hybrid Journal   (Followers: 12, SJR: 7.066, CiteScore: 3)
Acta Mathematica Hungarica     Hybrid Journal   (Followers: 2, SJR: 0.452, CiteScore: 1)
Acta Mathematica Sinica, English Series     Hybrid Journal   (Followers: 6, SJR: 0.379, CiteScore: 1)
Acta Mathematica Vietnamica     Hybrid Journal   (SJR: 0.27, CiteScore: 0)
Acta Mathematicae Applicatae Sinica, English Series     Hybrid Journal   (SJR: 0.208, CiteScore: 0)
Acta Mechanica     Hybrid Journal   (Followers: 21, SJR: 1.04, CiteScore: 2)
Acta Mechanica Sinica     Hybrid Journal   (Followers: 5, SJR: 0.607, CiteScore: 2)
Acta Metallurgica Sinica (English Letters)     Hybrid Journal   (Followers: 7, SJR: 0.576, CiteScore: 2)
Acta Meteorologica Sinica     Hybrid Journal   (Followers: 3, SJR: 0.638, CiteScore: 1)
Acta Neurochirurgica     Hybrid Journal   (Followers: 6, SJR: 0.822, CiteScore: 2)
Acta Neurologica Belgica     Hybrid Journal   (Followers: 1, SJR: 0.376, CiteScore: 1)
Acta Neuropathologica     Hybrid Journal   (Followers: 5, SJR: 7.589, CiteScore: 12)
Acta Oceanologica Sinica     Hybrid Journal   (Followers: 3, SJR: 0.334, CiteScore: 1)
Acta Parasitologica     Hybrid Journal   (Followers: 10, SJR: 0.641, CiteScore: 1)
Acta Physiologiae Plantarum     Hybrid Journal   (Followers: 2, SJR: 0.574, CiteScore: 2)
Acta Politica     Hybrid Journal   (Followers: 14, SJR: 0.605, CiteScore: 1)
Activitas Nervosa Superior     Hybrid Journal   (SJR: 0.147, CiteScore: 0)
adhäsion KLEBEN & DICHTEN     Hybrid Journal   (Followers: 7, SJR: 0.103, CiteScore: 0)
ADHD Attention Deficit and Hyperactivity Disorders     Hybrid Journal   (Followers: 23, SJR: 0.72, CiteScore: 2)
Adhesion Adhesives & Sealants     Hybrid Journal   (Followers: 9)
Administration and Policy in Mental Health and Mental Health Services Research     Partially Free   (Followers: 16, SJR: 1.005, CiteScore: 2)
Adsorption     Hybrid Journal   (Followers: 4, SJR: 0.703, CiteScore: 2)
Advances in Applied Clifford Algebras     Hybrid Journal   (Followers: 4, SJR: 0.698, CiteScore: 1)
Advances in Atmospheric Sciences     Hybrid Journal   (Followers: 37, SJR: 0.956, CiteScore: 2)
Advances in Computational Mathematics     Hybrid Journal   (Followers: 19, SJR: 0.812, CiteScore: 1)
Advances in Contraception     Hybrid Journal   (Followers: 3)
Advances in Data Analysis and Classification     Hybrid Journal   (Followers: 52, SJR: 1.09, CiteScore: 1)
Advances in Gerontology     Partially Free   (Followers: 8, SJR: 0.144, CiteScore: 0)
Advances in Health Sciences Education     Hybrid Journal   (Followers: 29, SJR: 1.64, CiteScore: 2)
Advances in Manufacturing     Hybrid Journal   (Followers: 3, SJR: 0.475, CiteScore: 2)
Advances in Polymer Science     Hybrid Journal   (Followers: 43, SJR: 1.04, CiteScore: 3)
Advances in Therapy     Hybrid Journal   (Followers: 5, SJR: 1.075, CiteScore: 3)
Aegean Review of the Law of the Sea and Maritime Law     Hybrid Journal   (Followers: 6)
Aequationes Mathematicae     Hybrid Journal   (Followers: 2, SJR: 0.517, CiteScore: 1)
Aerobiologia     Hybrid Journal   (Followers: 3, SJR: 0.673, CiteScore: 2)
Aesthetic Plastic Surgery     Hybrid Journal   (Followers: 9, SJR: 0.825, CiteScore: 1)
African Archaeological Review     Hybrid Journal   (Followers: 16, SJR: 0.862, CiteScore: 1)
Afrika Matematika     Hybrid Journal   (Followers: 1, SJR: 0.235, CiteScore: 0)
AGE     Hybrid Journal   (Followers: 7)
Ageing Intl.     Hybrid Journal   (Followers: 7, SJR: 0.39, CiteScore: 1)
Aggiornamenti CIO     Hybrid Journal   (Followers: 1)
Aging Clinical and Experimental Research     Hybrid Journal   (Followers: 3, SJR: 0.67, CiteScore: 2)
Agricultural Research     Hybrid Journal   (Followers: 5, SJR: 0.276, CiteScore: 1)
Agriculture and Human Values     Hybrid Journal   (Followers: 14, SJR: 1.173, CiteScore: 3)
Agroforestry Systems     Hybrid Journal   (Followers: 19, SJR: 0.663, CiteScore: 1)
Agronomy for Sustainable Development     Hybrid Journal   (Followers: 12, SJR: 1.864, CiteScore: 6)
AI & Society     Hybrid Journal   (Followers: 8, SJR: 0.227, CiteScore: 1)
AIDS and Behavior     Hybrid Journal   (Followers: 14, SJR: 1.792, CiteScore: 3)
Air Quality, Atmosphere & Health     Hybrid Journal   (Followers: 4, SJR: 0.862, CiteScore: 3)
Akupunktur & Aurikulomedizin     Full-text available via subscription   (Followers: 1)
Algebra and Logic     Hybrid Journal   (Followers: 6, SJR: 0.531, CiteScore: 0)
Algebra Universalis     Hybrid Journal   (Followers: 2, SJR: 0.583, CiteScore: 1)
Algebras and Representation Theory     Hybrid Journal   (Followers: 1, SJR: 1.095, CiteScore: 1)
Algorithmica     Hybrid Journal   (Followers: 9, SJR: 0.56, CiteScore: 1)
Allergo J.     Full-text available via subscription   (Followers: 1, SJR: 0.234, CiteScore: 0)
Allergo J. Intl.     Hybrid Journal   (Followers: 2)
Alpine Botany     Hybrid Journal   (Followers: 5, SJR: 1.11, CiteScore: 3)
ALTEX : Alternatives to Animal Experimentation     Open Access   (Followers: 3)
AMBIO     Hybrid Journal   (Followers: 10, SJR: 1.569, CiteScore: 4)
American J. of Cardiovascular Drugs     Hybrid Journal   (Followers: 16, SJR: 0.951, CiteScore: 3)
American J. of Community Psychology     Hybrid Journal   (Followers: 28, SJR: 1.329, CiteScore: 2)
American J. of Criminal Justice     Hybrid Journal   (Followers: 8, SJR: 0.772, CiteScore: 1)
American J. of Cultural Sociology     Hybrid Journal   (Followers: 16, SJR: 0.46, CiteScore: 1)
American J. of Dance Therapy     Hybrid Journal   (Followers: 4, SJR: 0.181, CiteScore: 0)
American J. of Potato Research     Hybrid Journal   (Followers: 2, SJR: 0.611, CiteScore: 1)
American J. of Psychoanalysis     Hybrid Journal   (Followers: 21, SJR: 0.314, CiteScore: 0)
American Sociologist     Hybrid Journal   (Followers: 12, SJR: 0.35, CiteScore: 0)
Amino Acids     Hybrid Journal   (Followers: 8, SJR: 1.135, CiteScore: 3)
AMS Review     Partially Free   (Followers: 4)
Analog Integrated Circuits and Signal Processing     Hybrid Journal   (Followers: 7, SJR: 0.211, CiteScore: 1)
Analysis and Mathematical Physics     Hybrid Journal   (Followers: 5, SJR: 0.536, CiteScore: 1)
Analysis in Theory and Applications     Hybrid Journal   (Followers: 1)
Analysis of Verbal Behavior     Hybrid Journal   (Followers: 5)
Analytical and Bioanalytical Chemistry     Hybrid Journal   (Followers: 32, SJR: 0.978, CiteScore: 3)
Anatomical Science Intl.     Hybrid Journal   (Followers: 2, SJR: 0.367, CiteScore: 1)
Angewandte Schmerztherapie und Palliativmedizin     Hybrid Journal  
Angiogenesis     Hybrid Journal   (Followers: 3, SJR: 2.177, CiteScore: 5)
Animal Cognition     Hybrid Journal   (Followers: 19, SJR: 1.389, CiteScore: 3)
Annales françaises de médecine d'urgence     Hybrid Journal   (Followers: 1, SJR: 0.192, CiteScore: 0)
Annales Henri Poincaré     Hybrid Journal   (Followers: 3, SJR: 1.097, CiteScore: 2)
Annales mathématiques du Québec     Hybrid Journal   (Followers: 4, SJR: 0.438, CiteScore: 0)
Annali dell'Universita di Ferrara     Hybrid Journal   (SJR: 0.429, CiteScore: 0)
Annali di Matematica Pura ed Applicata     Hybrid Journal   (Followers: 1, SJR: 1.197, CiteScore: 1)
Annals of Biomedical Engineering     Hybrid Journal   (Followers: 18, SJR: 1.042, CiteScore: 3)
Annals of Combinatorics     Hybrid Journal   (Followers: 4, SJR: 0.932, CiteScore: 1)
Annals of Data Science     Hybrid Journal   (Followers: 12)
Annals of Dyslexia     Hybrid Journal   (Followers: 10, SJR: 0.85, CiteScore: 2)
Annals of Finance     Hybrid Journal   (Followers: 30, SJR: 0.579, CiteScore: 1)
Annals of Forest Science     Hybrid Journal   (Followers: 7, SJR: 0.986, CiteScore: 2)
Annals of Global Analysis and Geometry     Hybrid Journal   (Followers: 1, SJR: 1.228, CiteScore: 1)
Annals of Hematology     Hybrid Journal   (Followers: 15, SJR: 1.043, CiteScore: 2)
Annals of Mathematics and Artificial Intelligence     Hybrid Journal   (Followers: 12, SJR: 0.413, CiteScore: 1)
Annals of Microbiology     Hybrid Journal   (Followers: 10, SJR: 0.479, CiteScore: 2)
Annals of Nuclear Medicine     Hybrid Journal   (Followers: 4, SJR: 0.687, CiteScore: 2)
Annals of Operations Research     Hybrid Journal   (Followers: 10, SJR: 0.943, CiteScore: 2)
Annals of Ophthalmology     Hybrid Journal   (Followers: 11)
Annals of Regional Science     Hybrid Journal   (Followers: 7, SJR: 0.614, CiteScore: 1)
Annals of Software Engineering     Hybrid Journal   (Followers: 13)
Annals of Solid and Structural Mechanics     Hybrid Journal   (Followers: 9, SJR: 0.239, CiteScore: 1)
Annals of Surgical Oncology     Hybrid Journal   (Followers: 13, SJR: 1.986, CiteScore: 4)
Annals of Telecommunications     Hybrid Journal   (Followers: 9, SJR: 0.223, CiteScore: 1)
Annals of the Institute of Statistical Mathematics     Hybrid Journal   (Followers: 1, SJR: 1.495, CiteScore: 1)
Antonie van Leeuwenhoek     Hybrid Journal   (Followers: 5, SJR: 0.834, CiteScore: 2)
Apidologie     Hybrid Journal   (Followers: 4, SJR: 1.22, CiteScore: 3)
APOPTOSIS     Hybrid Journal   (Followers: 8, SJR: 1.424, CiteScore: 4)
Applicable Algebra in Engineering, Communication and Computing     Hybrid Journal   (Followers: 2, SJR: 0.294, CiteScore: 1)
Applications of Mathematics     Hybrid Journal   (Followers: 2, SJR: 0.602, CiteScore: 1)
Applied Biochemistry and Biotechnology     Hybrid Journal   (Followers: 43, SJR: 0.571, CiteScore: 2)
Applied Biochemistry and Microbiology     Hybrid Journal   (Followers: 17, SJR: 0.21, CiteScore: 1)
Applied Cancer Research     Open Access  
Applied Categorical Structures     Hybrid Journal   (Followers: 2, SJR: 0.49, CiteScore: 0)
Applied Composite Materials     Hybrid Journal   (Followers: 49, SJR: 0.58, CiteScore: 2)
Applied Entomology and Zoology     Partially Free   (Followers: 3, SJR: 0.422, CiteScore: 1)
Applied Geomatics     Hybrid Journal   (Followers: 3, SJR: 0.733, CiteScore: 3)
Applied Geophysics     Hybrid Journal   (Followers: 8, SJR: 0.488, CiteScore: 1)
Applied Intelligence     Hybrid Journal   (Followers: 12, SJR: 0.6, CiteScore: 2)
Applied Magnetic Resonance     Hybrid Journal   (Followers: 4, SJR: 0.319, CiteScore: 1)
Applied Mathematics & Optimization     Hybrid Journal   (Followers: 6, SJR: 0.886, CiteScore: 1)
Applied Mathematics - A J. of Chinese Universities     Hybrid Journal   (SJR: 0.17, CiteScore: 0)
Applied Mathematics and Mechanics     Hybrid Journal   (Followers: 5, SJR: 0.461, CiteScore: 1)
Applied Microbiology and Biotechnology     Hybrid Journal   (Followers: 63, SJR: 1.182, CiteScore: 4)
Applied Physics A     Hybrid Journal   (Followers: 9, SJR: 0.481, CiteScore: 2)
Applied Physics B: Lasers and Optics     Hybrid Journal   (Followers: 24, SJR: 0.74, CiteScore: 2)
Applied Psychophysiology and Biofeedback     Hybrid Journal   (Followers: 8, SJR: 0.519, CiteScore: 2)
Applied Research in Quality of Life     Hybrid Journal   (Followers: 12, SJR: 0.316, CiteScore: 1)
Applied Solar Energy     Hybrid Journal   (Followers: 18, SJR: 0.225, CiteScore: 0)
Applied Spatial Analysis and Policy     Hybrid Journal   (Followers: 5, SJR: 0.542, CiteScore: 1)
Aquaculture Intl.     Hybrid Journal   (Followers: 23, SJR: 0.591, CiteScore: 2)
Aquarium Sciences and Conservation     Hybrid Journal   (Followers: 1)
Aquatic Ecology     Hybrid Journal   (Followers: 34, SJR: 0.656, CiteScore: 2)
Aquatic Geochemistry     Hybrid Journal   (Followers: 4, SJR: 0.591, CiteScore: 1)
Aquatic Sciences     Hybrid Journal   (Followers: 13, SJR: 1.109, CiteScore: 3)
Arabian J. for Science and Engineering     Hybrid Journal   (Followers: 5, SJR: 0.303, CiteScore: 1)
Arabian J. of Geosciences     Hybrid Journal   (Followers: 2, SJR: 0.319, CiteScore: 1)
Archaeological and Anthropological Sciences     Hybrid Journal   (Followers: 20, SJR: 1.052, CiteScore: 2)
Archaeologies     Hybrid Journal   (Followers: 12, SJR: 0.224, CiteScore: 0)
Archiv der Mathematik     Hybrid Journal   (Followers: 1, SJR: 0.725, CiteScore: 1)
Archival Science     Hybrid Journal   (Followers: 60, SJR: 0.745, CiteScore: 2)
Archive for History of Exact Sciences     Hybrid Journal   (Followers: 8, SJR: 0.186, CiteScore: 1)
Archive for Mathematical Logic     Hybrid Journal   (Followers: 2, SJR: 0.909, CiteScore: 1)
Archive for Rational Mechanics and Analysis     Hybrid Journal   (SJR: 3.93, CiteScore: 3)
Archive of Applied Mechanics     Hybrid Journal   (Followers: 5, SJR: 0.79, CiteScore: 2)
Archives and Museum Informatics     Hybrid Journal   (Followers: 143, SJR: 0.101, CiteScore: 0)
Archives of Computational Methods in Engineering     Hybrid Journal   (Followers: 5, SJR: 1.41, CiteScore: 5)
Archives of Dermatological Research     Hybrid Journal   (Followers: 7, SJR: 1.006, CiteScore: 2)
Archives of Environmental Contamination and Toxicology     Hybrid Journal   (Followers: 14, SJR: 0.773, CiteScore: 2)
Archives of Gynecology and Obstetrics     Hybrid Journal   (Followers: 16, SJR: 0.956, CiteScore: 2)
Archives of Microbiology     Hybrid Journal   (Followers: 8, SJR: 0.644, CiteScore: 2)
Archives of Orthopaedic and Trauma Surgery     Hybrid Journal   (Followers: 8, SJR: 1.146, CiteScore: 2)
Archives of Osteoporosis     Hybrid Journal   (Followers: 2, SJR: 0.71, CiteScore: 2)
Archives of Sexual Behavior     Hybrid Journal   (Followers: 10, SJR: 1.493, CiteScore: 3)
Archives of Toxicology     Hybrid Journal   (Followers: 17, SJR: 1.541, CiteScore: 5)
Archives of Virology     Hybrid Journal   (Followers: 5, SJR: 0.973, CiteScore: 2)
Archives of Women's Mental Health     Hybrid Journal   (Followers: 14, SJR: 1.274, CiteScore: 3)
Archivio di Ortopedia e Reumatologia     Hybrid Journal  
Archivum Immunologiae et Therapiae Experimentalis     Hybrid Journal   (Followers: 2, SJR: 0.946, CiteScore: 3)
ArgoSpine News & J.     Hybrid Journal  
Argumentation     Hybrid Journal   (Followers: 5, SJR: 0.349, CiteScore: 1)
Arid Ecosystems     Hybrid Journal   (Followers: 2, SJR: 0.2, CiteScore: 0)
Arkiv för Matematik     Hybrid Journal   (Followers: 1, SJR: 0.766, CiteScore: 1)
Arnold Mathematical J.     Hybrid Journal   (Followers: 1, SJR: 0.355, CiteScore: 0)
Arthropod-Plant Interactions     Hybrid Journal   (Followers: 2, SJR: 0.839, CiteScore: 2)
Arthroskopie     Hybrid Journal   (Followers: 1, SJR: 0.131, CiteScore: 0)
Artificial Intelligence and Law     Hybrid Journal   (Followers: 11, SJR: 0.937, CiteScore: 2)
Artificial Intelligence Review     Hybrid Journal   (Followers: 14, SJR: 0.833, CiteScore: 4)
Artificial Life and Robotics     Hybrid Journal   (Followers: 9, SJR: 0.226, CiteScore: 0)
Asia Europe J.     Hybrid Journal   (Followers: 5, SJR: 0.504, CiteScore: 1)
Asia Pacific Education Review     Hybrid Journal   (Followers: 12, SJR: 0.479, CiteScore: 1)
Asia Pacific J. of Management     Hybrid Journal   (Followers: 16, SJR: 1.185, CiteScore: 2)
Asia-Pacific Education Researcher     Hybrid Journal   (Followers: 12, SJR: 0.353, CiteScore: 1)
Asia-Pacific Financial Markets     Hybrid Journal   (Followers: 2, SJR: 0.187, CiteScore: 0)
Asia-Pacific J. of Atmospheric Sciences     Hybrid Journal   (Followers: 19, SJR: 0.855, CiteScore: 1)
Asian Business & Management     Hybrid Journal   (Followers: 9, SJR: 0.378, CiteScore: 1)
Asian J. of Business Ethics     Hybrid Journal   (Followers: 9)
Asian J. of Criminology     Hybrid Journal   (Followers: 5, SJR: 0.543, CiteScore: 1)
AStA Advances in Statistical Analysis     Hybrid Journal   (Followers: 3, SJR: 0.548, CiteScore: 1)
AStA Wirtschafts- und Sozialstatistisches Archiv     Hybrid Journal   (Followers: 5, SJR: 0.183, CiteScore: 0)
ästhetische dermatologie & kosmetologie     Full-text available via subscription  

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Journal Cover
Archives of Dermatological Research
Journal Prestige (SJR): 1.006
Citation Impact (citeScore): 2
Number of Followers: 7  
 
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 1432-069X - ISSN (Online) 0340-3696
Published by Springer-Verlag Homepage  [2351 journals]
  • Dimethyl fumarate (DMF) vs. monoethyl fumarate (MEF) salts for the
           treatment of plaque psoriasis: a review of clinical data
    • Authors: Lilla Landeck; Khusru Asadullah; Adriana Amasuno; Ignasi Pau-Charles; Ulrich Mrowietz
      Pages: 475 - 483
      Abstract: Fumarates (fumaric acid esters, FAEs) are orally administered systemic agents used for the treatment of psoriasis and multiple sclerosis. In 1994, a proprietary combination of FAEs was licensed for psoriasis by the German Drug Administration for use within Germany. Since then, fumarates have been established as one of the most commonly used treatments for moderate-to-severe psoriasis in Germany and other countries. The licensed FAE formulation contains dimethyl fumarate (DMF), as well as calcium, zinc, and magnesium salts of monoethyl fumarate (MEF). While the clinical efficacy of this FAE mixture is well established, the combination of esters on which it is based, and its dosing regimen, was determined empirically. Since the mid-1990s, the modes of action and contribution of the different FAEs to their overall therapeutic effect in psoriasis, as well as their adverse event profile, have been investigated in more detail. In this article, the available clinical data for DMF are reviewed and compared with data for the other FAEs. The current evidence substantiates that DMF is the main active compound, via its metabolic transformation to monomethyl fumarate (MMF). A recent phase III randomized and placebo-controlled trial including more than 700 patients demonstrated therapeutic equivalence when comparing the licensed FAE combination with DMF alone, in terms of psoriasis clearance according to the Psoriasis Area and Severity Index (PASI) and Physician’s Global Assessment (PGA). Thus, DMF as monotherapy for the treatment of psoriasis is as efficacious as in combination with MEF, making the addition of such fumarate derivatives unnecessary.
      PubDate: 2018-08-01
      DOI: 10.1007/s00403-018-1825-9
      Issue No: Vol. 310, No. 6 (2018)
       
  • CXCL13 is an activity marker for systemic, but not cutaneous lupus
           erythematosus: a longitudinal cohort study
    • Authors: Anna Niederkorn; Julia Frühauf; Gerold Schwantzer; Nora Wutte; Clemens Painsi; Stefan Werner; Martin Stradner; Andrea Berghold; Josef Hermann; Elisabeth Aberer
      Pages: 485 - 493
      Abstract: Serum levels of the IFN-regulated cytokine CXCL13 have been found to correlate with SLEDAI and renal involvement in systemic lupus erythematosus. This study investigates whether CXCL13 can also be a marker of disease activity in patients with subacute cutaneous or chronic cutaneous lupus erythematosus (SCLE, CCLE). We analysed CXCL13 levels in 60 patients’ sera (18 SLE, 19 SCLE, 23 CCLE) at five time points within 1 year and correlated these levels with disease activity scores and laboratory markers. Clinical scores with no/mild, moderate or high/severe disease activity were categorized by SLEDAI in SLE, by CLASI in SCLE/CCLE. CXCL13 levels were significantly higher in SLE (median 122.5, IQR 88.0–239.0 pg/ml) than in CCLE patients (median 69.0, IQR 60.0–102.0 pg/ml) (p = 0.006). CXCL13 levels were elevated in 59% (41/70) of SLE patient visits with mild or no disease activity, but in 90% (9/10) with high disease activity. CXCL13 levels correlated with ECLAM, dsDNA-antibodies, and inversely with complement factors C3 and C4 in SLE, and with IgA and ESR in SCLE. In CCLE CXCL13 did not correlate with CLASI or laboratory markers. One SCLE and two CCLE patients with CXCL13 levels > 500 pg/ml had conversion to SLE or an underlying autoimmune disease. CXCL13 seems to be a useful marker of disease activity in SLE, but not in SCLE and CCLE. Conversion from normal to elevated CXCL13 may indicate a flare of SLE. Whether high CXCL13 levels in cutaneous LE indicate the development of SLE should be further investigated.
      PubDate: 2018-08-01
      DOI: 10.1007/s00403-018-1836-6
      Issue No: Vol. 310, No. 6 (2018)
       
  • Amelioration of lactic acid sensations in sensitive skin by stimulating
           the barrier function and improving the ceramide profile
    • Authors: Hiroshi Nojiri; Koichi Ishida; Xueqiu Yao; Wei Liu; Genji Imokawa
      Pages: 495 - 504
      Abstract: We determined whether compensating ceramides in the stratum corneum (SC) may ameliorate the impaired barrier function and subsequently attenuate the enhanced skin sensitivity. Treatment for 4 weeks with the ceramide complex cream or the placebo cream significantly ameliorated the intensity of lactic acid sensations in 39 female subjects with sensitive skin, the degree of which was attenuated to a greater extent at 1 week by the ceramide complex cream compared with the placebo cream. The amelioration of skin sensations was accompanied by a significant increase in total ceramide content in the SC elicited by the ceramide complex cream that was significantly more effective than the placebo cream at 4 weeks. Consistently, TEWL and conductance values were significantly decreased or increased at 1 and 4 weeks, respectively, to a greater extent by the ceramide complex cream than by the placebo cream. TEWL levels were significantly correlated with the increased levels of SC total ceramide in the ceramide complex cream-treated skin but not in the placebo cream-treated skin. Thus, the amelioration of lactic acid sensations by topical application of a ceramide complex cream, provides a deep insight into the pathophysiology of sensitive skin as a reduced barrier function-dependent sub-clinical sensory response.
      PubDate: 2018-08-01
      DOI: 10.1007/s00403-018-1833-9
      Issue No: Vol. 310, No. 6 (2018)
       
  • Up-regulation of HMGB1 and TLR4 in skin lesions of lichen planus
    • Authors: Gabriel Costa de Carvalho; Fabiana Yasumoto Araujo Hirata; Rosana Domingues; Cristina Adelaide Figueiredo; Mariana Colombini Zaniboni; Naiura Vieira Pereira; Mirian Nacagami Sotto; Valéria Aoki; Alberto José da Silva Duarte; Maria Notomi Sato
      Pages: 523 - 528
      Abstract: Lichen planus (LP) is a chronic, mucocutaneous inflammatory disease of an unknown aetiology. The disease has been associated with certain viruses, and the factors such as DAMPs (damage-associated molecular patterns) and PAMPs (pathogen-associated molecular patterns) may also contribute to the inflammatory response in LP. HMGB1 (high mobility group box 1 protein) is one of the major DAMPs that induces inflammation and could trigger LP disease. The present study was aimed to examine TLR4, RAGE and HMGB1 production in epidermis or dermis by immunohistochemistry and the respective expression of these targets in the skin lesions of patients with LP. Moreover, we measured HMGB1 serum levels by ELISA. The results showed similar profile of expression by HMGB1 and TLR4, which are decreased at epidermis and up-regulated at dermis of skin lesions of LP patients that was sustained by intense cellular infiltration. RAGE expression was also increased in dermis of LP. Although there is increased RAGE protein levels, a decreased RAGE transcript levels was detected. Similar HMGB1 serum levels were detected in the LP and control groups. This study demonstrates that HMGB1 and TLR4 could contribute to the inflammatory LP process in skin.
      PubDate: 2018-08-01
      DOI: 10.1007/s00403-018-1837-5
      Issue No: Vol. 310, No. 6 (2018)
       
  • IL-17 inhibition: is it the long-awaited savior for alopecia areata'
    • Authors: Yuval Ramot; Barbara Marzani; Daniela Pinto; Elisabetta Sorbellini; Fabio Rinaldi
      Pages: 383 - 390
      Abstract: Interleukin-17 (IL-17) has been implicated in the pathogenesis of a large number of inflammatory and autoimmune conditions, including skin disorders such as psoriasis. Recently, much data have accumulated on the possible role of IL-17 in the pathogenesis of alopecia areata (AA). In this review, the available information on the connection between AA and IL-17 is described. While IL-17 levels are consistently reported to be elevated in the serum and lesional skin of AA patients, there is no clear connection between IL-17 levels and disease severity or duration. Some evidence has suggested an association between IL-17 and an early-onset disease, although this awaits further confirmation. While there is enough information to support clinical trials with IL-17-targeted treatments, it is possible that they will be effective only in a subset of AA patients. Further studies are warranted to better delineate the exact role of IL-17 in AA pathogenesis.
      PubDate: 2018-07-01
      DOI: 10.1007/s00403-018-1823-y
      Issue No: Vol. 310, No. 5 (2018)
       
  • Androgen modulation of Wnt/β-catenin signaling in androgenetic
           alopecia
    • Authors: A. Premanand; B. Reena Rajkumari
      Pages: 391 - 399
      Abstract: Androgenetic alopecia (AGA) is a dermatological disorder of scalp hair loss characterized by a progressive miniaturization of hair follicles with shortened anagen phase leading to a decreased number of hairs on the scalp. It is a complex polygenic trait prevailing around two-thirds of the male population. Elevated expressions of 5α-dihydrotestosterone and androgen receptor are the causal factors for AGA. This review describes recent studies on the role of androgens and androgen receptor (AR) transactivation activity in modulating the Wnt/β-catenin signaling in the dermal papilla cells of the balding scalp in androgenetic alopecia. Here, we analyse the androgen-induced dermal papilla secreted factors on stimulating catagen entry in hair follicles and the molecular cross-talk between AR and Wnt/β-catenin signaling with a brief mention on alternative treatment strategy targeting Wnt/β-catenin signaling for promoting hair growth.
      PubDate: 2018-07-01
      DOI: 10.1007/s00403-018-1826-8
      Issue No: Vol. 310, No. 5 (2018)
       
  • Anthocyanins from black soybean seed coat prevent radiation-induced skin
           fibrosis by downregulating TGF-β and Smad3 expression
    • Authors: Sang Woo Park; Jaehoon Choi; Junhyung Kim; Woohhyeok Jeong; Jun Sik Kim; Bae Kwon Jeong; Sung Chul Shin; Jin Hee Kim
      Pages: 401 - 412
      Abstract: The aim of this study was to evaluate the protective effects of anthocyanins from the black soybean seed coat against radiation injury in dermal fibroblasts and mouse skin. Dermal fibroblasts treated with 50 and 100 µg/mL anthocyanins were irradiated with single doses of 20 Gy. Cell viability, intracellular reactive oxygen species (ROS) production, and mRNA expression were measured. A total of 60 mice were used for an in vivo study. A dose of 100 µg/mL anthocyanins was administered daily for 5 days before or after radiation therapy. Following irradiation (45 Gy), mice were inspected for gross pathology twice per wk for 8 weeks. At 4 and 8 weeks post-irradiation, dorsal skin was harvested for histopathologic examination and protein isolation. In dermal fibroblasts, treatment with 50 and 100 µg/mL anthocyanins significantly reduced radiation-induced apoptosis at 72 h and intracellular reactive oxygen species generation at 48 h. Furthermore, 100 µg/mL anthocyanins markedly decreased Smad3 mRNA expression and increased Smad7 mRNA expression at 72 h post-irradiation. In mice, treatment with 100 µg/mL anthocyanins resulted in a significant reduction in the level of skin injury, epidermal thickness, and collagen deposition after irradiation. Treatment with 100 µg/mL anthocyanins significantly decreased the number of α-SMA-, TGF-β-, and Smad3-positive cells after irradiation. Our study demonstrated that black soybean anthocyanins inhibited radiation-induced fibrosis by downregulating TGF-β and Smad3 expression. Therefore, anthocyanins may be a safe and effective candidate for the prevention of radiation-induced skin fibrosis.
      PubDate: 2018-07-01
      DOI: 10.1007/s00403-018-1827-7
      Issue No: Vol. 310, No. 5 (2018)
       
  • UVA-photoprotective potential of silymarin and silybin
    • Authors: Alena Rajnochová Svobodová; Eva Gabrielová; Loizos Michaelides; Pavel Kosina; Alena Ryšavá; Jitka Ulrichová; Bohumil Zálešák; Jitka Vostálová
      Pages: 413 - 424
      Abstract: Exposure to solar radiation is a major cause of environmental human skin damage. The main constituent of solar UV light is UVA radiation (320–400 nm); however, the need for protection against UVA has been marginalized for a long time. As a result, there is still a lack of useful agents for UVA protection. In this study, the effect of silymarin (SM) and its main constituent silybin (SB) pre-treatment on UVA-stimulated damage to primary human dermal fibroblasts were carried out. The cells were pre-treated for 1 h with SB or SM and then were exposed to UVA light, using a solar simulator. The effect of SB and SM on reactive oxygen species (ROS) and glutathione (GSH) level, caspase-3 activity, single-strand breaks (SSB) formation and protein level of matrix metalloproteinase-1 (MMP-1), heme oxygenase-1 (HO-1), and heat shock protein (HSP70) was evaluated. Treatment with both SM and SB resulted in a reduction in UVA-stimulated ROS generation and SSB production, as well as in the prevention of GSH depletion, a decrease in the activation of caspase-3 and protein level of MMP-1. They also moderately increased HO-1 level and reduced HSP70 level. Our data showed that both SM and SB are non-phototoxic and have UVA-photoprotective potential and could be useful agents for UV-protective dermatological preparations.
      PubDate: 2018-07-01
      DOI: 10.1007/s00403-018-1828-6
      Issue No: Vol. 310, No. 5 (2018)
       
  • Increased tenascin C and DKK1 in vitiligo: possible role of fibroblasts in
           acral and non-acral disease
    • Authors: Samia M. Esmat; Heba H. El Hadidi; Rehab A. Hegazy; Heba I. Gawdat; Amira M. Tawdy; Marwa M. Fawzy; Dalia M. AbdelHalim; Omnia S. Sultan; Olfat G. Shaker
      Pages: 425 - 430
      Abstract: Recently, multiple culprits—in addition to melanocytes—have been implicated in the pathogenesis of vitiligo. Among those factors are fibroblasts. However, their exact role has not been clearly elucidated. The aim of the study was to evaluate the possible role played by fibroblasts in vitiligo via studying the expression Tenascin C and DKK1 in acral versus non-acral vitiligo lesions. This case–control study included 19 non-segmental vitiligo patients and ten controls. All patients were subjected to thorough clinical evaluation. Both Tenascin C and DKK1 were measured in lesional and peri-lesional skin of acral and non-acral lesions using ELISA technique. The measured levels of Tenascin C and DKK1 were significantly higher in the vitiligo group when compared to controls in all assessed sites (P < 0.05). Tenascin C was found to be significantly higher in lesional areas compared to peri-lesional ones only in the acral sites. DKK1 was significantly higher in lesional areas in all assessed sites (P < 0.05). The current work suggests a malfunction of fibroblasts in vitiligo, through demonstrating significant up-regulation of two melanogenesis inhibitory products (Tenascin C and DKK1) in patients compared to controls. Larger scale studies are warranted to detect the possible implications of such findings on vitiligo treatment.
      PubDate: 2018-07-01
      DOI: 10.1007/s00403-018-1830-z
      Issue No: Vol. 310, No. 5 (2018)
       
  • Expression of IL33 and IL35 in oral lichen planus
    • Authors: L. R. Javvadi; V. P. B. Parachuru; T. J. Milne; G. J. Seymour; Alison M. Rich
      Pages: 431 - 441
      Abstract: Oral lichen planus (OLP) is a complex immunological disorder, mediated in part by the release of cytokines by activated T-cells. Recently, the role of novel cytokines including IL33 and IL35 has been described in various chronic inflammatory diseases. IL33, a member of the IL-1 superfamily of cytokines, functions as an ‘alarmin’ released after cell necrosis to alert the immune system to tissue damage or stress. IL35, a member of IL12 cytokine family, is produced by regulatory T-cells and suppresses the immune response. The expression of IL33 and IL35 is yet to be investigated in OLP. The aim of this study was to determine the presence and topographical distribution of IL33 and IL35 in OLP using immunohistochemistry and quantitative real-time reverse transcriptase polymerase chain reaction (qPCR). For IHC, formalin-fixed paraffin-embedded archival specimens of OLP (n = 10) and a non-specific inflammatory (NSI) control group (n = 9) were used. A double-labelling immunofluorescence technique was used to determine the expression of IL33 and IL35 on CD3+ T-cells. In addition, 12 fresh tissue samples (OLP n = 6 and NSI controls n = 6) were used to determine the gene expression of IL33 and EBI3 (one chain of the dimeric IL35). Quantitative and qualitative analysis was performed with statistical significance set at p < 0.05. IHC showed positive immunostaining with IL33 and IL35 in both OLP and NSI. Comparison of the numbers of IL33+ and IL35+ cells in OLP and NSI did not show any significant difference. In OLP, there were significantly more IL33+ cells in the deeper connective tissue region than at the epithelial–connective tissue interface. Interestingly, all IL35+ cells observed in both OLP and NSI tissues showed ovoid/plasmacytoid morphology. Double-labelling immunofluorescence showed that IL33 and IL35 expression was not localized within CD3+ T-cells. The gene expression experiments showed significantly higher expression of EBI3 (fold regulation 14.02) in OLP when compared to the inflammatory controls. IL33 gene expression was not different between the groups. However, within the OLP tissues, there was a significantly higher expression of IL33 than EBI3. Our data demonstrate the expression of IL33 and IL35 in OLP lesions. Further studies are needed to understand the functional role of these cytokines in OLP pathogenesis.
      PubDate: 2018-07-01
      DOI: 10.1007/s00403-018-1829-5
      Issue No: Vol. 310, No. 5 (2018)
       
  • Linoleate-enriched diet increases both linoleic acid esterified to omega
           hydroxy very long chain fatty acids and free ceramides of canine stratum
           corneum without effect on protein-bound ceramides and skin barrier
           function
    • Authors: Iuliana Popa; Adrian L. Watson; Audrey Solgadi; Christina Butowski; David Allaway; Jacques Portoukalian
      Abstract: Few studies have investigated the influence of increased amounts of dietary linoleic acid on the epidermal lipid biochemistry and TEWL in healthy subject. The influence of dietary linoleic acid on canine stratum corneum (SC) lipids was studied by feeding two groups of five dogs differential amounts of linoleic acid (LA) for three months. SC was harvested by tape stripping and lipids were analyzed by thin-layer chromatography and mass spectrometry. The dogs that were fed the higher concentration of LA showed high increases in the contents of both linoleic acid and free ceramides in the SC, whereas the protein-bound ceramide content was unchanged. Acylacids that represent the esterified form of linoleic acid in omega hydroxy very long chain fatty acids (ω-OH VLCFA) accounted for most of the elevation of LA, whereas the concentration of the free form was not significantly changed. Corroborating the absence of change in the protein-bound ceramides content of healthy dogs SC, TEWL was nearly unaffected by the linoleic acid-enriched diet.
      PubDate: 2018-07-11
      DOI: 10.1007/s00403-018-1845-5
       
  • Phenotype variability in tumor disorders of the skin appendages associated
           with mutations in the CYLD gene
    • Authors: Lizelotte J. M. T. Parren; Kathrin Giehl; Michel van Geel; Jorge Frank
      Abstract: Mutations in the tumor suppressor gene CYLD underlie phenotypically heterogeneous hereditary tumor disorders of the skin appendages. These diseases are inherited autosomal dominantly and include Brooke–Spiegler syndrome (BSS; OMIM 605041), familial cylindromatosis (FC; OMIM 132700) and multiple familial trichoepithelioma (MFT; OMIM 601606). Clinically, cylindromas, trichoepitheliomas and spiradenomas can be found in affected individuals. We sought to elucidate the molecular genetic basis in individuals with newly diagnosed cylindromas, trichoepitheliomas and/or spiradenomas. Mutation analysis using polymerase chain reaction (PCR)-based techniques was performed in seven German patients and one Turkish patient. We detected two missense, two nonsense, two deletions and two duplication mutations in the CYLD gene, of which seven have not yet been reported. No genotype–phenotype correlation was detected amongst the patients. Our data provide additional information on the clinical and molecular genetic heterogeneity of disorders associated with CYLD mutations.
      PubDate: 2018-07-04
      DOI: 10.1007/s00403-018-1848-2
       
  • Haplotypes of ABCB1 1236C >T (rs1128503), 2677G >T/A
           (rs2032582), and 3435C >T (rs1045642) in patients with bullous
           pemphigoid
    • Authors: Mariola Rychlik-Sych; Małgorzata Barańska; Michał Dudarewicz; Jadwiga Skrętkowicz; Agnieszka Żebrowska; Anna Woźniacka; Jacek Owczarek; Daria Orszulak-Michalak; Elżbieta Waszczykowska
      Abstract: Bullous pemphigoid (BP) constitutes the most prevalent disease in the group of bullous dermatoses with the autoimmune background. Some authors suggest that certain cytokines (IL-2, IFN-γ) may be transported by P-glycoprotein (P-gp), the product of the ABCB1 gene. ABCB1 polymorphism might affect not only the effectiveness of treatment with drugs that are P-gp substrates but also contribute to the development of diseases, including BP. In the present work, we resolved to conduct a haplotype analysis of ABCB1 in patients with BP and to answer the question of whether any of the haplotypes are able to affect the incidence of this entity. The study involved 71 patients with BP and 100 healthy volunteers. Determination of polymorphisms 1236C > T and 3435C > T in ABCB1 was carried out with the PCR–RFLP (Polymerase Chain Reaction–Restriction Fragment Length Polymorphism) method. The 2677G > T/A ABCB1 polymorphism was analyzed with the allele-specific PCR method. It was observed that the 1236T-2677G-3435T haplotype occurred with a statistically significantly lower frequency in patients with BP than in controls (1.4 vs. 10.0%). Carriers of this haplotype were also shown to have had a low relative risk for BP (OR = 0.13, p = 0.003). Haplotype analysis of ABCB1 conducted in patients with BP demonstrated that the 1236T-2677G-3435T haplotype may protect against development of this entity.
      PubDate: 2018-06-09
      DOI: 10.1007/s00403-018-1842-8
       
  • Reply to the letter: “Can such an animal model truly represent
           Henoch–Schönlein purpura'”
    • Authors: Yanhong Li; Xiaolong Sui; Hua Zhu; Yanfeng Xu; Lan Huang; Yuhuan Xu; Yunlin Han; Xiaochun Feng; Chuan Qin
      PubDate: 2018-06-01
      DOI: 10.1007/s00403-018-1839-3
       
  • Ultraviolet radiation induces Melan-A-expressing cells in interfollicular
           epidermis in wild-type mice
    • Authors: David A. De Luca; Barbara Sterniczky; Susanne Kimeswenger; Dagmar Födinger; Agatha Schwarz; Thomas Schwarz; Christian Jantschitsch
      Abstract: Adult wild-type mice are not supposed to be proper models for ultraviolet radiation (UVR)-induced melanoma since melanocytes are confined to hair follicles and cannot be sufficiently reached by UVR. On the other hand, in mutated mouse models used for melanoma research limitations, including an altered immune system and selection of affected pathways, lead to tumors phenotypically quite different from naturally occurring melanomas. We compared the distribution of epidermal melanocytes in UVR and not-UVR-exposed wild-type C57BL/6 mice. Starting at the age of 8 weeks, mice were exposed to physiologic doses of UVR three times weekly over 16 weeks. Back skin biopsies were taken 4, 8, 12 and 16 weeks after initiation of exposure, and stained for Melan-A, representing a highly selective marker for melanocytes. Surprisingly, after exposure to UVR, Melan-A positive cells were detected also in the interfollicular epidermis of C57BL/6 mice. We conclude that UVR is capable of inducing interfollicular epidermal melanocytes in wild-type mice.
      PubDate: 2018-05-17
      DOI: 10.1007/s00403-018-1840-x
       
  • Can such an animal model truly represent Henoch–Schönlein
           purpura'
    • Authors: Fengying Wang; Ruyue Chen; Xiaozhong Li; Yunyan Shen
      PubDate: 2018-05-14
      DOI: 10.1007/s00403-018-1838-4
       
  • Characterization and survival of patients with metastatic basal cell
           carcinoma in the Department of Veterans Affairs: a retrospective
           electronic health record review
    • Authors: Vanessa W. Stevens; David D. Stenehjem; Olga V. Patterson; Aaron W. C. Kamauu; Yeun Mi Yim; Robert J. Morlock; Scott L. DuVall
      Abstract: Available descriptive statistics for patients with metastatic basal cell carcinoma (mBCC) are limited. To describe disease characteristics, treatment patterns, survival outcomes, and prognostic factors of patients with mBCC, we conducted a retrospective review of electronic health records in the Department of Veterans Affairs (VA). The primary outcome was survival. Data were also collected on demographics, comorbidities, medications, and procedures. Median (IQR) age of patients with mBCC (n = 475) was 72.0 (17.0) years; 97.9% of patients were male. Almost two-thirds of patients received no initial therapy for mBCC. Median overall survival was 40.5 months [95% CI (confidence interval) 4.8–140.0], and was shorter in patients with distant metastases (17.1 months; 95% CI 2.8–58.0) than in those with regional metastases (59.4 months; 95% CI 17.6–140.0). Because the VA mBCC population is largely male and elderly, the generalizability of these results in other populations is limited and must be interpreted cautiously. Data from this large cohort add valuable information on a rare and poorly researched disease and refine previously wide estimates of overall survival for mBCC.
      PubDate: 2018-05-08
      DOI: 10.1007/s00403-018-1834-8
       
  • Ex vivo nonlinear microscopy imaging of Ehlers–Danlos
           syndrome-affected skin
    • Authors: Norbert Kiss; Dóra Haluszka; Kende Lőrincz; Enikő Kuroli; Judit Hársing; Balázs Mayer; Sarolta Kárpáti; György Fekete; Róbert Szipőcs; Norbert Wikonkál; Márta Medvecz
      Abstract: Ehlers–Danlos syndrome (EDS) is the name for a heterogenous group of rare genetic connective tissue disorders with an overall incidence of 1 in 5000. The histological characteristics of EDS have been previously described in detail in the late 1970s and early 1980s. Since that time, the classification of EDS has undergone significant changes, yet the description of the histological features of collagen morphology in different EDS subtypes has endured the test of time. Nonlinear microscopy techniques can be utilized for non-invasive in vivo label-free imaging of the skin. Among these techniques, two-photon absorption fluorescence (TPF) microscopy can visualize endogenous fluorophores, such as elastin, while the morphology of collagen fibers can be assessed by second-harmonic generation (SHG) microscopy. In our present work, we performed TPF and SHG microscopy imaging on ex vivo skin samples of one patient with classical EDS and two patients with vascular EDS and two healthy controls. We detected irregular, loosely dispersed collagen fibers in a non-parallel arrangement in the dermis of the EDS patients, while as expected, there was no noticeable impairment in the elastin content. Based on further studies on a larger number of patients, in vivo nonlinear microscopic imaging could be utilized for the assessment of the skin status of EDS patients in the future.
      PubDate: 2018-05-03
      DOI: 10.1007/s00403-018-1835-7
       
  • Dermal white adipose tissue undergoes major morphological changes during
           the spontaneous and induced murine hair follicle cycling: a reappraisal
    • Authors: April R. Foster; Carina Nicu; Marlon R. Schneider; Eleanor Hinde; Ralf Paus
      Abstract: In murine skin, dermal white adipose tissue (DWAT) undergoes major changes in thickness in synchrony with the hair cycle (HC); however, the underlying mechanisms remain unclear. We sought to elucidate whether increased DWAT thickness during anagen is mediated by adipocyte hypertrophy or adipogenesis, and whether lipolysis or apoptosis can explain the decreased DWAT thickness during catagen. In addition, we compared HC-associated DWAT changes between spontaneous and depilation-induced hair follicle (HF) cycling to distinguish between spontaneous and HF trauma-induced events. We show that HC-dependent DWAT remodelling is not an artefact caused by fluctuations in HF down-growth, and that dermal adipocyte (DA) proliferation and hypertrophy are HC-dependent, while classical DA apoptosis is absent. However, none of these changes plausibly accounts for HC-dependent oscillations in DWAT thickness. Contrary to previous studies, in vivo BODIPY uptake suggests that increased DWAT thickness during anagen occurs via hypertrophy rather than hyperplasia. From immunohistomorphometry, DWAT thickness likely undergoes thinning during catagen by lipolysis. Hence, we postulate that progressive, lipogenesis-driven DA hypertrophy followed by dynamic switches between lipogenesis and lipolysis underlie DWAT fluctuations in the spontaneous HC, and dismiss apoptosis as a mechanism of DWAT reduction. Moreover, the depilation-induced HC displays increased DWAT thickness, area, and DA number, but decreased DA volume/area compared to the spontaneous HC. Thus, DWAT shows additional, novel HF wounding-related responses during the induced HC. This systematic reappraisal provides important pointers for subsequent functional and mechanistic studies, and introduces the depilation-induced murine HC as a model for dissecting HF–DWAT interactions under conditions of wounding/stress.
      PubDate: 2018-04-27
      DOI: 10.1007/s00403-018-1831-y
       
  • Determinants of quality of life and psychological status in adults with
           psoriasis
    • Authors: Zhenli Kwan; Yii Bonn Bong; Leng Leng Tan; Shu Xian Lim; Adrian Sze Wai Yong; Chin Chwen Ch’ng; Maw Pin Tan; Rokiah Ismail
      Abstract: We investigated whether disease severity and clinical manifestations were associated with depression, anxiety, stress and quality of life in adults with psoriasis. Participants were recruited from a dermatology outpatient clinic at a teaching hospital. Information on sociodemographic characteristics, disease severity, presence of arthropathy and head involvement was specifically recorded. Disease severity was assessed using the Psoriasis Area and Severity Index (PASI). Quality of life and psychological symptoms were measured using the Dermatology Life Quality Index (DLQI) and the Depression Anxiety Stress Scale (DASS), respectively. One hundred individuals were recruited. Unadjusted analysis revealed that head involvement was associated with depression [odds ratio (OR) 8.509; 95% confidence interval (CI) 1.077–67.231] and anxiety (OR 6.46; 95% CI 1.401–29.858). Severe disease was associated with a poorer quality of life compared to mild disease (OR 3.750; 95% CI 1.330–10.577). Younger age was associated with an increased risk of depression [mean difference (MD) − 8.640; 95% CI − 16.390 to − 0.890], anxiety (MD − 11.553; 95% CI − 18.478 to− 4.628), stress (MD − 11.440; 95% CI − 19.252 to − 3.628) and severely impaired quality of life (MD − 12.338; 95% CI − 19.548 to − 5.127). Following adjustments for age and disease severity, anxiety, stress and depression remained associated with severely impaired quality of life.
      PubDate: 2018-04-23
      DOI: 10.1007/s00403-018-1832-x
       
 
 
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