Title: Journal of the European Academy of Dermatology and Venereology

Title: Journal of the European Academy of Dermatology and Venereology

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? Hu, S.C.S., Chen, G.S., Wu, C.S., Chai, C.Y., Chen, W.T. and Lan, C.C.E. (2008), Pigmented eccrine poromas: expression of melanocyte-stimulating cytokines by tumour cells does not always result in melanocyte colonization. Journal of the European Academy of Dermatology and Venereology, 22 (3), 303-310.

Abstract: Background Although eccrine poroma (EP) occurs preferentially in pigmented variants of EP have not been documented on palmoplantar areas, the palms and soles. Objectives We seek to confirm the notion regarding lack of pigmented EP on palmoplantar areas and determine whether the absence of pigmentation in palmoplantar EPs is due to lack of expression of melanocyte-stimulating cytokines by tumour cells. Methods We searched the PUBMED and Web of Science databases (1966-2006) for reports of pigmented EPs. In addition, a total of 17 EPs were collected from our pathology department. The presence of melanin was examined with haematoxylin-eosin sections, and melanocyte colonization was shown by immunohistochemical stains for tyrosinase. In addition, immunohistochemical staining with antibodies to melanocyte-stimulating cytokines, including endothelin-1, stem cell factor, and nerve growth factor, was done on these tumours. Results A review of the literature revealed 15 pigmented EP reports, none of which were located in palmoplantar areas. Among 17 EPs collected from our pathology department, 7 occurred in palmoplantar areas and 10 in non-palmoplantar areas. Three of the palmoplantar EPs and three of the non-palmoplantar EPs showed positive staining with melanocyte-stimulating cytokines. However, none of the palmoplantar EPs contained melanocytes or melanin pigment, wheras the three non-palmoplantar EPs that stained positively with melanocyte-stimulating cytokines were colonized with melanocytes and showed pigmentation clinically. Conclusions The expression of melanocyte-stimulating factors by tumour cells is associated with melanocyte colonization in non-palmoplantar EPs but not palmoplantar EPs. Therefore, the presence of melanocyte-stimulating cytokines per se is not sufficient by itself to induce melanocyte colonization. Certain characteristics of palmoplantar skin, such as the dermal components of these anatomical sites, may play a role in inhibiting melanocyte colonization of EPs.

Keywords: Databases, Dermal Fibroblasts, Eccrine Poroma, Enhanced Endothelin-1 Expression, Epithelial-Mesenchymal Interactions, Hepatocyte Growth-Factor, Hidroacanthoma Simplex, Hyperpigmentation, Lentigo Senilis, Literature, Mechanism, Melanocyte Colonization, Melanocyte-Stimulating Cytokines, Methods, Palmoplantar Fibroblasts, Palmoplantar Skin, Pathology, Pigment, Pubmed, Review, Science, Seborrheic Keratosis, Tumours, Web of Science

? Schneider, S. and Kramer, H. (2010), Who uses sunbeds? A systematic literature review of risk groups in developed countries. Journal of the European Academy of Dermatology and Venereology, 24 (6), 639-648.

Abstract: Skin cancer is caused by ultraviolet radiation (UVR). Indoor tanning is a totally avoidable risk behaviour. This review addresses the specific characteristics of sunbed users and the differences in motivation and risk perception compared with non-users. This review is based solely on empirical original articles. Based on literature searches with widely used reference databases (‘PUBMED’, ‘OVID’, ‘Social Citation Index’, ‘ERIC - Educational Resources Information Center’, ‘Web of Science’ and the ‘International Bibliography of the Social Sciences’), we included studies from developed nations with a publication date between 1 January 2000 and 12 August 2008. All studies were selected, classified and coded simultaneously by both authors on a blinded basis. All searches were performed on 13 and 14 August 2008. In accordance with the QUOROM and the MOOSE Statements, we identified 16 original studies. The typical sunbed user is female, between 17 and 30 years old, and tends to live a comparatively unhealthy lifestyle: Users smoke cigarettes and drink alcohol more frequently and eat less healthy food than non-users. Users are characterized by a lack of knowledge about health risks of UVR, and prompted by the frequent use of sunbeds by friends or family members and the experience of positive emotions and relaxation by indoor tanning. This review is the first systematic review on risk groups among sunbed users that has been published in a scientific journal. There is still a lack of information among users, particularly among young people regarding the safety of solariums.

Keywords: Alcohol, Attitudes, Authors, Basal-Cell, Behavior, Cancer, Citation, Databases, Health, Health Risks, Information, Journal, Knowledge, Literature, Literature Review, Melanoma, Motivation, Perception, Prevention, Prevention, Publication, Review, Risk, Risk Factors, Risk Groups, Safety, Science, Scientific Journal, Skin-Cancer Risk, Social Sciences, Sun Exposure, Sunbed, Sunbeds, Swedish Adolescents, Systematic, Systematic Literature Review, Systematic Review, Tanning Bed Use, Ultraviolet Rays, Web of Science

Title: Journal of the European Ceramic Society

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? Coleman, N.J., Bishop, A.H., Booth, S.E. and Nicholson, J.W. (2009), Ag⁺- and Zn²⁺- exchange kinetics and antimicrobial properties of 11 angstrom tobermorites. Journal of the European Ceramic Society, 29 (6), 1109-1117.

Full Text: 2009\J Eur Cer Soc29, 1109.pdf

Abstract: Ag⁺- and Zn²⁺-exchanged zeolites and clays have been used as coatings and in composites to confer broad-spectrum antimicrobial properties on a range of technical and biomedical materials. 11 angstrom tobermorite is a bioactive layer lattice ion exchanger whose potential as a carrier for Ag⁺ and Zn²⁺ ions in antimicrobial formulations has not yet been explored. In view of this, batch Ag⁺- and Zn²⁺-exchange kinetics of two structurally distinct synthetic 11 angstrom tobermorites and their subsequent bactericidal action against Staphylococcus aureus and Pseudomonas aeruginosa are reported. During the exchange reactions, Ag⁺ ions were found to replace labile interlayer cations; whereas, Zn²⁺ ions also displaced structural Ca²⁺ ions from the tobermorite lattice. In spite of these different mechanisms, a simple pseudo-second-order model provided a suitable description of both exchange processes (R² >= 0.996). The Ag⁺- and Zn²⁺-exchanged tobermorite phases exhibited marked bacteriostatic effects against both bacteria, and accordingly, their potential for use as antimicrobial materials for in situ bone tissue regeneration is discussed. (C) 2008 Elsevier Ltd. All rights reserved.

Keywords: Adsorption, Biomedical Applications, Chemical Properties, Chitosan, Composite, In-Vitro, Kinetics, Metal-Ions, Newsprint Recycling Residue, Pseudo-Second-Order Kinetics, Silicate, Silver Nanoparticles, Sorption, Waste-Derived 11, Zinc