Portulaca oleracea extracts protect human keratinocytes and fibroblasts from UV-induced apoptosis.

abstract：INTRODUCTION:The aetiology of mycosis fungoides and parapsoriasis (which may be considered as an early stage of mycosis fungoides) remains debated. Previous recent studies have suspected the involvement of viral agents and particularly human herpes viruses (HHV).The aim of the present study was to screen for the presen...

journal_title：Experimental dermatology

authors： Quéreux G,André-Garnier E,Knol AC,Imbert-Marcille BM,Dréno B

更新日期：2009-04-01 00:00:00

abstract：:Primary cutaneous large B-cell lymphomas, leg type (PCLBCL/LT) are primary cutaneous B-cell lymphoma (PCBCL) with an intermediate prognosis. Therefore, antracycline-based polychemotherapy combined with rituximab has been recommended as first-line treatment. Yet, despite this regimen, the 5-year survival rate remains 5...

journal_title：Experimental dermatology

authors： Teichert M,Stumpf C,Booken N,Wobser M,Nashan D,Hallermann C,Mogler C,Müller CS,Becker JC,Moritz RK,Andrulis M,Nicolay JP,Goerdt S,Thomas M,Klemke CD,Augustin HG,Felcht M

更新日期：2015-06-01 00:00:00

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 th...

journal_title：Experimental dermatology

authors： Aberg P,Birgersson U,Elsner P,Mohr P,Ollmar S

更新日期：2011-08-01 00:00:00

abstract：:Newborn foreskin and adult skin keratinocytes (KTs) were cultured in 24-well plates using keratinocyte basal medium (KBM) either alone or supplemented with epidermal growth factor (EGF) or nerve growth factor (NGF), plus one of the following: insulin (INS), insulin-like growth factors (IGF)-1 or -2, transforming growt...

journal_title：Experimental dermatology

authors： Wilkinson DI,Theeuwes MJ,Farber EM

更新日期：1994-10-01 00:00:00

abstract：:In systemic scleroderma (SSc) excessive deposition of collagen leads to fibrosis of various tissues including the skin. Previous studies have demonstrated that scleroderma fibroblasts in explant monolayer cultures are heterogeneous with respect to their levels of collagen synthesis. The critical role played by the ext...

journal_title：Experimental dermatology

authors： Mauch C,Kozlowska E,Eckes B,Krieg T

更新日期：1992-11-01 00:00:00

abstract：:The early growth response (Egr)-1 is a transcriptional factor which plays an important role in the regulation of cell growth, differentiation, cell survival and immune responses. Emerging evidences including our data demonstrate that the Egr-1 expression is up-regulated in the psoriatic skin lesions. The purpose of th...

journal_title：Experimental dermatology

authors： Jeong SH,Kim HJ,Jang Y,Ryu WI,Lee H,Kim JH,Bae HC,Choi JE,Kye YC,Son SW

更新日期：2014-12-01 00:00:00

abstract：:4-(4-Hydroxyphenyl)-2-butanol (rhododendrol, RD), a skin-whitening agent, was reported to cause skin depigmentation in some users, which is attributed to its cytotoxicity to melanocyte. It was reported that cytotoxicity to melanocyte is possibly mediated by oxidative stress in a tyrosinase activity-dependent manner. W...

journal_title：Experimental dermatology

authors： Goto N,Tsujimoto M,Nagai H,Masaki T,Ito S,Wakamatsu K,Nishigori C

更新日期：2018-07-01 00:00:00

abstract：:Reverse transcriptase qPCR is the most common method to determine and compare mRNA expression levels and relies on normalization using reference genes. The expression levels of the latter, however, are themselves often variable between experimental conditions, thus compromising the results. Using the geNorm algorithm,...

journal_title：Experimental dermatology

authors： Braun A,Sezin T,Bezdek S,Doxastaki I,Zillikens D,Busch HS,Sadik CD

更新日期：2019-08-01 00:00:00

abstract：:In a large-scale ageing study, 30 inbred mouse strains were systematically screened for histologic evidence of lesions in all organ systems. Ten strains were diagnosed with similar nail abnormalities. The highest frequency was noted in NON/ShiLtJ mice. Lesions identified fell into two main categories: acute to chronic...

journal_title：Experimental dermatology

authors： Linn SC,Mustonen AM,Silva KA,Kennedy VE,Sundberg BA,Bechtold LS,Alghamdi S,Hoehndorf R,Schofield PN,Sundberg JP

更新日期：2019-04-01 00:00:00

abstract：:Anthralin is a widely used topical anti-psoriatic drug that may have an immunomodulating effect on alopecia areata (AA) as it does in psoriasis. The aims of the present study were to investigate the effects of anthralin on hair growth in balding C3H/HeJ mice affected by an AA-like disease and to study the underlying m...

journal_title：Experimental dermatology

authors： Tang L,Cao L,Sundberg JP,Lui H,Shapiro J

更新日期：2004-01-01 00:00:00

abstract：:The proportion of acral melanoma (AM) is much higher in Asian populations than in Caucasian populations. Although mutational profiles associated with AM have been discovered in Caucasian populations, knowledge of its genetic alterations in Asian populations is limited. To describe the molecular nature of AM in Korean ...

journal_title：Experimental dermatology

authors： Shim JH,Shin HT,Park J,Park JH,Lee JH,Yang JM,Kim DH,Jang KT,Lee DY

更新日期：2017-10-01 00:00:00

abstract：:A causative link between emotional stress and acne has long been postulated. There is mounting evidence that the molecular mechanism underlying this observation is related to the expression of receptors for several neuroendocrine mediators by the sebaceous gland. Recent and ongoing studies have indicated that human se...

journal_title：Experimental dermatology

authors： Zouboulis CC,Böhm M

更新日期：2004-01-01 00:00:00

abstract：:5-methoxypsoralen (5-MOP) is considered an alternative to 8-methoxypsoralen (8-MOP) for photochemotherapy of psoriasis. We have compared the clinical efficacy and tolerability of 5-MOP (1.2 mg/kg)-UVA versus 8-MOP (0.6 mg/kg)-UVA therapy in 25 patients of skin type III and IV, affected by relapsing plaque-type psorias...

journal_title：Experimental dermatology

authors： Calzavara-Pinton P,Ortel B,Carlino A,Honigsmann H,De Panfilis G

更新日期：1992-07-01 00:00:00

abstract：:While the central role of mast cells (MC) in allergy and inflammation is well-appreciated, much less is known about their physiological functions. The impressive battery of potent growth modulatory MC products, and increasing evidence of MC involvement in hyperproliferative and fibrotic disorders suggest that tissue r...

journal_title：Experimental dermatology

authors： Maurer M,Paus R,Czarnetzki BM

更新日期：1995-08-01 00:00:00

abstract：:The role of placebo and nocebo effects-that is positive or negative treatment effects that are entirely a consequence of the patient's expectations and beliefs about a treatment outcome in terms of efficacy, safety, usability or side effects-has been shown for almost all types of diseases and physiological response sy...

journal_title：Experimental dermatology

authors： Evers AW

更新日期：2017-01-01 00:00:00

abstract：:Angiotensin II (Ang II) stimulation has been shown to regulate proliferation of skin fibroblasts and the production of extracellular matrix, which are very important processes in skin wound healing and fibrosis; however, there is little knowledge about the mechanisms involved in this process. We investigated the molec...

journal_title：Experimental dermatology

authors： Zhang GY,Li X,Yi CG,Pan H,He GD,Yu Q,Jiang LF,Xu WH,Li ZJ,Ding J,Lin DS,Gao WY

更新日期：2009-11-01 00:00:00

abstract：:We have shown previously in psoriasis a very high prevalence of epidermodysplasia verruciforms-associated human papillomavirus 5 (EVHPV5) DNA and antibodies to human papillomavirus 5 (HPV5) virus-like particle (VLP) L1, and we suggested that this benign hyperproliferative disorder could be a reservoir for EVHPVs. Here...

journal_title：Experimental dermatology

authors： Majewski S,Jablonska S

更新日期：2003-12-01 00:00:00

abstract：:Sunburn cell (SBC) formation in the epidermis is a characteristic consequence of ultraviolet radiation (UVR) exposure at doses around or above the minimum erythema dose. SBC have been identified morphologically and biologically as keratinocytes undergoing apoptosis. There is evidence that SBC formation is a protective...

journal_title：Experimental dermatology

authors： Murphy G,Young AR,Wulf HC,Kulms D,Schwarz T

更新日期：2001-06-01 00:00:00

abstract：:The potential of an anti-inflammatory peptide (antiflammin 1) to reduce irritation when delivered transdermally by iontophoresis was examined. A model drug irritant, chlorpromazine, was co-delivered with and without antiflammin 1 by iontophoresis to hairless guinea pigs transdermally. Quantitative skin irritation meas...

journal_title：Experimental dermatology

authors： Mize NK,Buttery M,Ruis N,Leung I,Cormier M,Daddona P

更新日期：1997-08-01 00:00:00

abstract：:Despite the lack of protective melanin and increased oxidative stress due to mM concentrations of epidermal H2O2 in vitiligo, there is no significantly increased risk for chronic actinic damage and non-melanoma skin cancer. Therefore the question arises, which protective mechanisms could be involved in the skin of the...

journal_title：Experimental dermatology

authors： Schallreuter KU,Behrens-Williams S,Khaliq TP,Picksley SM,Peters EM,Marles LK,Westerhof W,Miehe B,Fanghänel J

更新日期：2003-06-01 00:00:00

abstract：:The skin forms a barrier that prevents dehydration and keeps us safe from pathogens. To ensure proper function, the skin possesses a myriad of stem cell populations that are essential for maintenance and repair upon damage. In order to protect, the skin is also an active immunological site, with abundant resident immu...

journal_title：Experimental dermatology

authors： Agudo J

更新日期：2020-10-26 00:00:00

abstract：:The proliferative responses of cells to mitogens decrease during aging, and this may result from age-related defects in signal transduction in response to mitogens. In this study, we have investigated the age-related alteration of responses to epidermal growth factor (EGF) in cultured human keratinocytes that were sen...

journal_title：Experimental dermatology

authors： Shi B,Isseroff RR

更新日期：2005-07-01 00:00:00

abstract：:During aging, increases in the number of senescent cells are seen in various tissues. On the other hand, stem cells play crucial roles in tissue repair and homeostasis. Therefore, it is likely that stem cells give rise to new cells that replace senescent cells. However, how stem cells contribute to homeostasis in the ...

journal_title：Experimental dermatology

authors： Ohgo S,Hasegawa S,Hasebe Y,Mizutani H,Nakata S,Akamatsu H

更新日期：2015-07-01 00:00:00

abstract：:Mast cells, eosinophils and basophils are central effector immune cells in allergic skin inflammation including atopic dermatitis (AD). Recent studies revealed that the bidirectional interaction between these three immune cell types (mast cells, eosinophils and basophils) and the nervous system is involved in the path...

journal_title：Experimental dermatology

authors： Nakashima C,Ishida Y,Kitoh A,Otsuka A,Kabashima K

更新日期：2019-12-01 00:00:00

abstract：:Responses to acetylcholine (ACh) and vasoactive intestinal polypeptide (VIP) were investigated in atopic eczema (AE) patients. To elucidate the involvement of histamine to ACh-provoked vasoreactions and sensations, we applied a selective H1-antagonist (cetirizine) 3 h prior to the ACh-administration. Solutions of acet...

journal_title：Experimental dermatology

authors： Rukwied R,Heyer G

更新日期：1999-02-01 00:00:00

abstract：:The molecular nature of the hair cycle clock (HCC), the intrinsic oscillator system that drives hair follicle (HF) cycling, remains incompletely understood; therefore, all relevant key players need to be identified. Here, we present evidence that implicates myelin protein zero-like 3 (MPZL3), a multifunctional nuclear...

journal_title：Experimental dermatology

authors： Nicu C,Wikramanayake TC,Paus R

更新日期：2020-12-01 00:00:00

abstract：:Interleukin-1 alpha (IL-1 alpha), interleukin-1 beta (IL-1 beta) and tumor necrosis factor-alpha (TNF-alpha) are 3 cytokines that play a key rôle in cutaneous homeostasis and in the immunopathogenesis of a number of dermatologic diseases. Most studies have focused on their production by keratinocytes and Langerhans ce...

journal_title：Experimental dermatology

authors： Boehm KD,Yun JK,Strohl KP,Elmets CA

更新日期：1995-12-01 00:00:00

abstract：:Placental extracts have been widely used as skin lightening agents in the Japanese cosmetic market. Here, we show that placental extracts contain factors that can decrease or increase melanin synthesis by normal human melanocytes in vitro in possible association with mitochondrial respiration. When normal human melano...

journal_title：Experimental dermatology

authors： Yoshimoto S,Ohagi Y,Yoshida M,Yanagi H,Hibino S,Ichihashi M,Ando H

更新日期：2019-02-01 00:00:00

abstract：:Pseudoxanthoma elasticum (PXE), a systemic heritable connective tissue disorder, is characterized by progressive calcification of elastic structures in the skin, the eyes and the cardiovascular system, with considerable intra- and interfamilial phenotypic variability. Recently, underlying genetic defects have been ide...

journal_title：Experimental dermatology

authors： Ringpfeil F,Pulkkinen L,Uitto J

更新日期：2001-08-01 00:00:00

abstract：:Patients sensitized to para-phenylenediamine (PPD) by semi-permanent tattoos increasingly develop threatening allergic reactions in response to black hair dye. The gold standard to diagnose allergic contact dermatitis is to perform epicutaneous patch tests, however, iatrogenic sensitizations and severe patch test reac...

journal_title：Experimental dermatology

authors： Kneilling M,Caroli U,Grimmel C,Fischer J,Eichner M,Wieder T,Maier FC,Röcken M,Biedermann T

更新日期：2010-05-01 00:00:00