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https://www.readbyqxmd.com/read/28535110/successful-treatment-of-lichen-amyloidosis-accompanied-by-atopic-dermatitis-by-fractional-co2-laser
#1
Howard Chu, Jung U Shin, Jungsoo Lee, Chang Ook Park, Kwang Hoon Lee
Lichen amyloidosis is a subtype of primary cutaneous amyloidosis that presents as persistent, multiple grouped hyperkeratotic papules usually located on the shins, back, forearms, or thighs. The treatment of lichen amyloidosis has been considered to be difficult, and of the various methods available, recent studies have reported the efficacy of fractional CO2 lasers. Lichen amyloidosis may be accompanied by atopic dermatitis, in which the treatment options may be more limited. Herein, we report three cases of lichen amyloidosis accompanied by atopic dermatitis treated by fractional CO2 laser...
May 23, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/28533848/dermatology-in-ghana-a-retrospective-review-of-skin-disease-at-the-korle-bu-teaching-hospital-dermatology-clinic
#2
Brooke E Rosenbaum, Rebecca Klein, Paa Gyasi Hagan, Mark-Young Seadey, Naa Larteley Quarcoo, Rachel Hoffmann, Maria Robinson, Margaret Lartey, Marie C Leger
INTRODUCTION: Ghana is currently developing its provision of dermatology services. Epidemiologic studies of the skin diseases seen by Ghanaian dermatologists are needed to guide these efforts. We aimed to describe the skin conditions seen by and management practices of Ghanaian dermatologists in a specialized clinic. METHODS: We conducted a chart review of new patients presenting to the Korle Bu Teaching Hospital dermatology clinic during 2014. RESULTS: Among the 529 patients studied, 700 discrete diagnoses were made...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28531200/discovery-of-micrornas-during-early-spermatogenesis-in-chicken
#3
Lu Xu, Qixin Guo, Guobin Chang, Lingling Qiu, Xiangping Liu, Yulin Bi, Yu Zhang, Hongzhi Wang, Wei Lu, Lichen Ren, Ying Chen, Yang Zhang, Qi Xu, Guohong Chen
Spermatogenesis is a complex process that involves many elements. However, until now, little is known at the molecular level about spermatogenesis in poultry. Here we investigated microRNAs and their target genes that may be involved in germ cell development and spermatogonial in chicken. We used next-generation sequencing to analyze miRNA expression profiles in three types of germline cells: primordial germ cells (PGCs), spermatogonial stem cells (SSCs), and spermatogonia (Sp) during early stage of spermatogenesis...
2017: PloS One
https://www.readbyqxmd.com/read/28529737/identifying-the-association-between-interleukin-6-and-lichen-planus-a-meta-analysis
#4
Meng Yin, Guifeng Li, Hui Song, Song Lin
Numerous studies have examined the association between interleukin-6 and the pathogenesis of lichen planus (LP)/oral LP (OLP) in various populations; however, there is a lack of systematic analysis. The aim of the present study was to assess this association more precisely, thus a meta-analysis was performed. Case-control studies, which were published up to December 2015, were obtained from PubMed, Embase and the China National Knowledge Infrastructure databases. Data were extracted and pooled mean differences (MDs) with 95% confidence intervals (CIs) were calculated...
May 2017: Biomedical Reports
https://www.readbyqxmd.com/read/28528262/stable-isotope-tracing-of-ni-and-cu-pollution-in-north-east-norway-potentials-and-drawbacks
#5
Hana Šillerová, Vladislav Chrastný, Martina Vítková, Anna Francová, Jan Jehlička, Marissa R Gutsch, Jana Kocourková, Paul E Aspholm, Lars O Nilsson, Tore F Berglen, Henning K B Jensen, Michael Komárek
The use of Ni and Cu isotopes for tracing contamination sources in the environment remains a challenging task due to the limited information about the influence of various biogeochemical processes influencing stable isotope fractionation. This work focuses on a relatively simple system in north-east Norway with two possible endmembers (smelter-bedrock) and various environmental samples (snow, soil, lichens, PM10). In general, the whole area is enriched in heavy Ni and Cu isotopes highlighting the impact of the smelting activity...
May 18, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28526592/photodynamic-therapy-in-the-treatment-of-vulvar-lichen-sclerosus
#6
Agnieszka Maździarz, Beata Osuch, Magdalena Kowalska, Agnieszka Nalewczyńska, Beata Śpiewankiewicz
BACKGROUND: Vulvar lichen sclerosus is a chronic and incurable disease that causes various unpleasant symptoms and serious consequences. OBJECTIVE: The purpose of the study was to assess the effectiveness of photodynamic therapy in the treatment of vulvar lichen sclerosus. METHODS: Participants in the study included 102 female patients aged 19-85 suffer from vulvar lichen sclerosus. The patients underwent photodynamic therapy (PDT). In the course of PDT the 5% 5- aminolevulinic acid was used in gel form...
May 16, 2017: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/28524063/association-between-hcv-infection-and-cutaneous-mucosal-lichen-planus-an-update
#7
Sara Pinelli, Stefano Basile, Pierluigi Benedetti Panici, Angelo Massimiliano D'Erme, Marco Romanelli, Francesco Plotti, Maria Giovanna Salerno
No abstract text is available yet for this article.
May 19, 2017: European Journal of Dermatology: EJD
https://www.readbyqxmd.com/read/28523261/rejuvenation-using-platelet-rich-plasma-and-lipofilling-for-vaginal-atrophy-and-lichen-sclerosus
#8
Seok Hwan Kim, Eun Soo Park, Tae Hee Kim
Vaginal atrophy is a common condition among peri- and post-menopausal women. Symptoms of vaginal dryness, pruritus, irritation, loss of subcutaneous fat, sparse pubic hair and dyspareunia occur due to decreased estrogen level. Estrogen-based treatments are effective. But many patients are reluctant to be treated due to health concerns. As alternatives, we explored the efficacy of platelet-rich plasma (PRP) and lipofilling. A 67-year-old female patient with vaginal atrophy was referred to our department. Treatment using estrogen cream had failed to improve patient's symptoms...
April 2017: Journal of Menopausal Medicine
https://www.readbyqxmd.com/read/28522404/tubo-ovarian-abscess-in-a-virginal-adolescent-with-labial-agglutination-due-to-lichen-sclerosus
#9
Bianca Stortini, Ozlem Dural, Maria Kielly, Nathalie Fleming
BACKGROUND: We describe an unusual presentation of lichen sclerosus in a postmenarchal, virginal girl. CASE: A 14 year-old girl first presented with acute urinary retention due to labial agglutination and developed bilateral tubo-ovarian abscesses in 10 days of the conservative management period. Abscesses were treated with antibiotherapy and percutaneous drainage; simple division of the labial agglutination and vulvar biopsies were performed with a preliminary diagnosis of lichen sclerosus...
May 15, 2017: Journal of Pediatric and Adolescent Gynecology
https://www.readbyqxmd.com/read/28522040/the-depth-of-inflammation-in-frontal-fibrosing-alopecia-and-lichen-planopilaris-a-potential-distinguishing-feature
#10
Denise Wong, Lynne J Goldberg
No abstract text is available yet for this article.
June 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28515896/a-worldwide-phylogeography-of-the-whiteworm-lichens-thamnolia-reveals-three-lineages-with-distinct-habitats-and-evolutionary-histories
#11
Ioana Onuţ-Brännström, Leif Tibell, Hanna Johannesson
Thamnolia is a lichenized fungus with an extremely wide distribution, being encountered in arctic and alpine environments in most continents. In this study, we used molecular markers to investigate the population structure of the fungal symbiont and the associated photosynthetic partner of Thamnolia. By analyzing molecular, morphological, and chemical variation among 253 specimens covering the species distribution range, we revealed the existence of three mycobiont lineages. One lineage (Lineage A) is confined to the tundra region of Siberia and the Aleutian Islands, a second (Lineage B) is found in the high alpine region of the Alps and the Carpathians Mountains, and a third (Lineage C) has a worldwide distribution and covers both the aforementioned ecosystems...
May 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28515022/sos-response-in-bacteria-inhibitory-activity-of-lichen-secondary-metabolites-against-escherichia-coli-reca-protein
#12
Pierangelo Bellio, Letizia Di Pietro, Alisia Mancini, Marisa Piovano, Marcello Nicoletti, Fabrizia Brisdelli, Donatella Tondi, Laura Cendron, Nicola Franceschini, Gianfranco Amicosante, Mariagrazia Perilli, Giuseppe Celenza
BACKGROUND: RecA is a bacterial multifunctional protein essential to genetic recombination, error-prone replicative bypass of DNA damages and regulation of SOS response. The activation of bacterial SOS response is directly related to the development of intrinsic and/or acquired resistance to antimicrobials. Although recent studies directed towards RecA inactivation via ATP binding inhibition described a variety of micromolar affinity ligands, inhibitors of the DNA binding site are still unknown...
June 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28513659/serum-resistant-reactive-oxygen-species-ros-potentiated-gene-delivery-in-cancer-cells-mediated-by-fluorinated-diselenide-crosslinked-polyplexes
#13
Qiurong Deng, Xudong Li, Lipeng Zhu, Hua He, Donglai Chen, Yongbing Chen, Lichen Yin
The transfection performance of polycations is often hampered by various systemic barriers that pose conflicting requirements for material design. Herein, we developed fluorinated, ROS-cleavable polyethylenimine (PEI) for effective and serum-resistant gene delivery to cancer cells, by harmonizing the inconsistency between DNA condensation and release, and the inconsistency between cellular internalization and serum stability. Low-molecular weight (MW) PEI was cross-linked with a diselenide-containing linker and further modified with fluorocarbon chains...
May 17, 2017: Biomaterials Science
https://www.readbyqxmd.com/read/28513562/effects-of-growth-media-on-the-diversity-of-culturable-fungi-from-lichens
#14
Lucia Muggia, Theodora Kopun, Martin Grube
Microscopic and molecular studies suggest that lichen symbioses contain a plethora of associated fungi. These are potential producers of novel bioactive compounds, but strains isolated on standard media usually represent only a minor subset of these fungi. By using various in vitro growth conditions we are able to modulate and extend the fraction of culturable lichen-associated fungi. We observed that the presence of iron, glucose, magnesium and potassium in growth media is essential for the successful isolation of members from different taxonomic groups...
May 17, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28512746/a-panel-of-micrornas-can-be-used-to-determine-oral-squamous-cell-carcinoma
#15
Gareema Prasad, Christine Seers, Eric Reynolds, Michael J McCullough
BACKGROUND: Subjective histopathology is currently used to diagnose oral squamous cell carcinoma (OSCC). We tested if abundances of a panel of microRNA could be an objective OSCC indicator. METHOD: Literature review enabled identification of 10 microRNAs associated with oral and head and neck malignancies. We extracted RNA from formalin-fixed paraffin embedded biopsies; 20 each with OSCC, dysplasia or histologically normal epithelium (HNE) and 10 with oral lichen planus (OLP)...
May 17, 2017: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/28511823/dissociation-and-conversion-symptoms-in-dermatology
#16
Madhulika A Gupta, Branka Vujcic, Aditya K Gupta
Dissociation and conversion (defined as the somatic component of dissociation) can play an important mediating role in the exacerbation of the stress-reactive dermatoses (eg, psoriasis, idiopathic urticaria, atopic dermatitis), dermatoses that are exacerbated by excessive scratching (eg, lichen simplex chronicus, prurigo nodularis) and koebnerization, and the self-induced dermatoses (dermatitis artefacta, acne excoriée, skin picking disorder, trichotillomania, onychotillomania/onychophagia). Dissociative symptoms often coexist with obsessive-compulsive symptoms in the more severe cases of the self-induced dermatoses...
May 2017: Clinics in Dermatology
https://www.readbyqxmd.com/read/28510551/the-meaning-of-lichen
#17
Erica Gies
No abstract text is available yet for this article.
May 16, 2017: Scientific American
https://www.readbyqxmd.com/read/28510445/establishment-of-a-direct-injection-electron-ionization-mass-spectrometry-metabolomics-method-and-its-application-to-lichen-profiling
#18
Hisahiro Kai, Kaoru Kinoshita, Hiroshi Harada, Yoshihiro Uesawa, Akihiro Maeda, Ryuichiro Suzuki, Yoshihito Okada, Kunio Takahashi, Koji Matsuno
Direct-injection electron-ionization-mass spectrometry (DI-EI-MS) is a multivariate analysis method useful for characterizing biological materials. We demonstrated the use of DI-EI-MS for metabolic profiling using several closely related lichen species: Cladonia krempelhuberi, C. gracilis, C. pseudogymnopoda, and C. ramulosa. The methodology involves conversion of total ion chromatograms to integrated chromatograms and assessment of reproducibility. The qualitative DI-EI-MS method was used to profile the major and/or minor constituents in extracts of lichen samples...
May 16, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28509898/modern-pollen-data-from-the-canadian-arctic-1972-1973
#19
Harvey Nichols, Susann Stolze
This data descriptor reports results of a 1972-73 baseline study of modern pollen deposition in the Canadian Arctic to originally aid interpretation of Holocene pollen diagrams from that region, especially focussed on the arctic tree-line. The data set is geographically unique due to its extent, and allows the assessment of the effects of modern climate change on northern ecosystems, including fluctuations of the a arctic tree-line. Repeated sampling was conducted along an interior transect at 29 sites from the Boreal Forest to the High Arctic, with five additional coastal sites covering a total distance of 3,200 km...
May 16, 2017: Scientific Data
https://www.readbyqxmd.com/read/28509523/skin-diseases-and-tattoos-a-five-year-experience
#20
Maddalena Napolitano, Matteo Megna, Milena Cappello, Caterina Mazzella, Cataldo Patruno
BACKGROUND: Decorative tattooing as a body art form underwent an exponential increase during the last two decades, particularly among teenagers and young adults. Consequently, the number of reported adverse reactions after tattooing has increased. The most frequent reported skin reactions to tattoo include infectious (bacterial, viral, fungal) or inflammatory (allergic contact dermatitis and granulomatous reaction) diseases. Moreover, tattoos can also induce the development of typical skin lesions of pre-existing dermatoses, a phenomenon known as isomorphism reactive or Koëbner phenomenon, which commonly occurs in patients with psoriasis, vitiligo, or lichen planus...
May 16, 2017: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
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