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https://www.readbyqxmd.com/read/29148712/constructing-repairable-meta-structures-of-ultra-broadband-electromagnetic-absorption-from-3d-printed-patterned-shells
#1
Wei-Li Song, Zhili Zhou, Lichen Wang, Xiao-Dong Cheng, Mingji Chen, Rujie He, Hao-Sen Chen, Yazheng Yang, Daining Fang
Ultra-broadband electromagnetic absorption materials and structures are increasingly attractive for their critical role in competing to the advanced broadband electromagnetic detective systems. Mechanically soft and weak wax-based materials composites are known to be insufficient to serve for practical electromagnetic absorption applications. To break through such barriers, here we developed an innovative strategy to enable the wax-based composites as robust and repairable meta-structures by employing a 3D printed polymeric patterned shell...
November 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29146053/usefulness-of-a-direct-immunofluorescence-in-the-diagnosis-of-plaque-type-oral-lichen-planus
#2
Patricia Alejandra Masquijo-Bisio, Mariana Silvia Gandolfo, Alicia Keszler, Maria Elina Itoiz, María Luisa Paparella
No abstract text is available yet for this article.
December 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29144206/c-jun-expression-in-lichen-planus-psoriasis-and-cutaneous-squamous-cell-carcinoma-an-immunohistochemical-study
#3
Asmaa Gaber Abdou, Alaa Hassan Marae, Mohammed Shoeib, Ghada Dawood, Enas Abouelfath
The AP-1 transcription factor complex is a key player in regulating inflammatory processes, cell proliferation, differentiation and cell transformation. The aim of the present study is to investigate C-Jun (one of AP-1complex) expression and its proliferative role in skin samples of lichen planus, psoriasis as common inflammatory skin diseases and squamous cell carcinoma using immunohistochemical method. The present study was carried out on skin biopsies of 15 psoriatic patients, 15 lichen planus patients, 15 SCC and 15 normal skin biopsies...
November 16, 2017: Journal of Immunoassay & Immunochemistry
https://www.readbyqxmd.com/read/29143417/can-antarctic-lichens-acclimatise-to-changes-in-temperature
#4
Claudia Colesie, Burkhard Büdel, Vaughan Hurry, T G Allan Green
The Antarctic Peninsula, a tundra biome dominated by lichens and bryophytes, is an ecozone undergoing rapid temperature shifts. Such changes may demand a high physiological plasticity of the local lichen species in order for them to maintain their role as key drivers in this pristine habitat. This study examines the response of net photosynthesis and respiration to increasing temperatures for three Antarctic lichen species with different ecological response amplitudes. We hypothesise that negative effects caused by increased temperatures can be mitigated by thermal acclimation of respiration and/or photosynthesis...
November 15, 2017: Global Change Biology
https://www.readbyqxmd.com/read/29141063/novel-treatment-using-low-dose-naltrexone-for-lichen-planopilaris
#5
Lauren C Strazzulla, Lorena Avila, Kristen Lo Sicco, Jerry Shapiro
<p>Lichen planopilaris (LPP) is a variant of lichen planus that affects the scalp causing scarring hair loss. Patients also frequently experience symptoms of scalp itch, pain, and burning. To date, there are no long-term remittive nor curative therapies available. Low-dose naltrexone has anti-inflammatory properties and has recently been described in the context of treating autoimmune conditions. This retrospective medical record review describes four LPP patients treated with low-dose (3 milligrams per day) naltrexone...
November 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/29140882/extravascular-migratory-metastasis-pericytic-mimicry-in-sarcomatoid-squamous-cell-carcinoma-of-the-vulva-a-report-of-2-cases
#6
M H Eleanor Koay, Colin J R Stewart
Extravascular migratory metastasis (EVMM), also known as pericytic mimicry or angiotropism, is a mechanism of angiocentric tumor spread that has been investigated mainly in cutaneous malignant melanoma where it has been associated with an increased risk of metastasis. In EVMM, the tumor cells spread along the external (ablumenal) aspect of vessels without breaching the endothelium, a process that is therefore distinct from the more widely recognized intraluminal invasion. Although EVMM has also been reported in a limited range of other tumor types, to our knowledge it has not been described in squamous cell carcinoma (SCC)...
November 14, 2017: International Journal of Gynecological Pathology
https://www.readbyqxmd.com/read/29139359/oral-lichen-planus-a-cross-sectional-descriptive-study-of-33-patients
#7
Virendra N Sehgal, Nazim Hussain Syed, Ashok Aggarwal, Shruti Sehgal
Oral lichen planus (OLP), a well-known entity, is often neglected; however, its assessment is considered essential for evolving future strategies for treatment. Thirty-three patients with OLP from 200 consecutive patients with oral mucosal lesions were studied according to demography. Tobacco chewing, smoking, and alcohol intake were recorded. Examination of the oral cavity, using a head light and tongue depressor, was undertaken to define the morphology of the lesion(s). Colored photographs were an essential part of the process...
2017: Skinmed
https://www.readbyqxmd.com/read/29139037/prevalence-of-oral-lichen-planus-in-iranian-children-and-adolescents-a-12-year-retrospective-study
#8
S Bakhtiari, J B Taheri, P Toossi, S Azimi, Sh Kawosi Nezhad
AIM: To investigate the prevalence of oral lichen planus in patients younger than 18 years, referred to a dermatology centre in Iran during 2002-2014. Lichen planus is a chronic inflammatory, immune-mediated disease that could affect the oral mucosa and is a pre-cancerous condition. The disease usually develops in middle age with female predominance and is rare in children. METHODS: In this retrospective study, cases with definitive histopathologic diagnosis of lichen planus, over a 12-year period from 2002 to 2014 from a dermatologic hospital archive were evaluated...
November 14, 2017: European Archives of Paediatric Dentistry: Official Journal of the European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/29138813/reduced-mirna%C3%A2-214-expression-in-oral-mucosa-contributes-to-the-pathogenesis-of-oral-lichen-planus-by-targeting-cd44
#9
Haiyan Zheng, Shaohui Li
The present study aimed to investigate the role of miRNAs during the pathogenesis of oral lichen planus (OLP). OLP is a chronic inflammatory disorder, which involves T‑cell mediated autoimmunity and affects the skin, scalp, nails and mucosa. Abundant T lymphocytes have been demonstrated to infiltrate the oral mucosa, in which the activated T cells trigger apoptosis of oral epithelial cells. Overexpression of osteopontin (OPN) and CD44 has been observed in the mucosa of patients with OLP, and it has been confirmed that OPN suppresses the apoptosis of activated CD8+ T cells via CD44...
November 10, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29137809/prognostic-factors-for-local-recurrence-of-squamous-cell-carcinoma-of-the-vulva-a-systematic-review
#10
Nienke C Te Grootenhuis, Anne-Floor W Pouwer, Geertruida H de Bock, Harry Hollema, Johan Bulten, Ate G J van der Zee, Joanne A de Hullu, Maaike H M Oonk
BACKGROUND: In patients treated for early-stage squamous cell vulvar carcinoma local recurrence is reported in up to 40% after ten years. Knowledge on prognostic factors related to local recurrences should be helpful to select high risk patients and/or to develop strategies to prevent local recurrences. OBJECTIVE: This systematic review aims to evaluate the current knowledge on the incidence of local recurrences in vulvar carcinoma related to clinicopathologic and cell biologic variables...
November 11, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/29136569/unleaded-gasoline-as-a-significant-source-of-pb-emissions-in-the-subarctic
#11
Vladislav Chrastný, Hana Šillerová, Martina Vítková, Anna Francová, Jan Jehlička, Jana Kocourková, Paul E Aspholm, Lars O Nilsson, Tore F Berglen, Henning K B Jensen, Michael Komárek
After the phasing out of leaded gasoline, Pb emissions to the atmosphere dramatically decreased, and other sources became more significant. The contribution of unleaded gasoline has not been sufficiently recognized; therefore, we evaluated the impact of Pb from unleaded gasoline in a relatively pristine area in Subarctic NE Norway. The influence of different endmembers (Ni slag and concentrate from the Nikel smelter in Russia, PM10 filters, and traffic) on the overall Pb emissions was determined using various environmental samples (snow, lichens, and topsoils) and Pb isotope tracing...
November 8, 2017: Chemosphere
https://www.readbyqxmd.com/read/29135114/expression-and-role-of-p53-in-oral-lichen-planus-patients
#12
Milos Hadzi-Mihailovic, Renata Petrovic, Helene Raybaud, Dragan Stanimirovic, Meltem Ozar Koray
PURPOSE: Oral lichen planus (OLP) is an autoimmune skin and mucosal disorder. The range of malignant transformation in OLP varies between 0.1-3%. p53 is a tumor suppressor protein. Defective p53 could allow abnormal cells to proliferate, resulting in cancer. p53 plays an important role in cell cycle control and apoptosis and loss of p53 function has been demonstrated in about half of all human cancers. The purpose of the study was to investigate the malignant potential of OLP on the basis of p53 expression and to correlate p53 expression with clinical and histopathological features of OLP...
September 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/29133389/selective-killing-of-helicobacter-pylori-with-ph-responsive-helix-coil-conformation-transitionable-antimicrobial-polypeptides
#13
Menghua Xiong, Yan Bao, Xin Xu, Hua Wang, Zhiyuan Han, Zhiyu Wang, Yeqing Liu, Songyin Huang, Ziyuan Song, Jinjing Chen, Richard M Peek, Lichen Yin, Lin-Feng Chen, Jianjun Cheng
Current clinical treatment of Helicobacter pylori infection, the main etiological factor in the development of gastritis, gastric ulcers, and gastric carcinoma, requires a combination of at least two antibiotics and one proton pump inhibitor. However, such triple therapy suffers from progressively decreased therapeutic efficacy due to the drug resistance and undesired killing of the commensal bacteria due to poor selectivity. Here, we report the development of antimicrobial polypeptide-based monotherapy, which can specifically kill H...
November 13, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29133168/autologous-granulation-tissue-tubes-for-replacement-of-urethral-defects-an-experimental-study-in-male-rabbits
#14
Shi-Wei Jiang, Zhong-Hua Xu, Yuan-Yuan Zhao, Lei Yan, Zun-Lin Zhou, Gang-Li Gu
INTRODUCTION: Tubularized urethroplasty is commonly performed in clinical practice using genital skin flaps, bladder mucosa, and buccal mucosa. However, the long-term effects are not satisfying, and donor site morbidities remain a problem. Besides, those grafts are unavailable with malignant conditions of the urinary tract, a history of lichen sclerosis, or oral disease. OBJECTIVE: An autologous granulation tissue tube of any required length and diameter can be produced by implanting foreign objects subcutaneously (Summary Fig...
October 31, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/29130773/alteration-of-salivary-glycopatterns-in-oral-lichen-planus
#15
Liang Fang, Qing Liu, Pengfei He, Xinwen Wang, Ying Wang, Minghui Wei, Lihua Chen
BACKGROUND: Oral lichen planus (OLP) is one of the most common oral mucosal lesions affecting 0.5% to 2% of the adult population. It is difficult to distinguish between OLP and other oral mucosal diseases. Structural changes in the glycans of saliva proteins might be reliable indicators of OLP. However, little is known about the alteration of salivary glycopatterns during OLP. OBJECTIVE: We aimed to investigate the alterations of salivary protein glycosylation related to OLP...
November 13, 2017: Biomarkers: Biochemical Indicators of Exposure, Response, and Susceptibility to Chemicals
https://www.readbyqxmd.com/read/29126556/vulvar-intraepithelial-neoplasia-risk-factors-for-recurrence
#16
W Satmary, C H Holschneider, L L Brunette, S Natarajan
OBJECTIVE: We studied a large population of women with high-grade vulvar intraepithelial neoplasia (VIN) in order to identify patient and treatment-related risk factors for recurrence and progression to cancer. METHODS: For this retrospective cohort study of women with a histologic diagnosis of VIN within Southern California Permanente Medical Group between 1995 and 2007 medical records were reviewed; clinical, demographic and pathologic data were collected. Statistical analyses included Chi-squared and Student's t-tests, univariate and multivariate logistic regression, and cumulative incidence analysis...
November 7, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/29124831/a-prospective-observational-study-to-compare-efficacy-of-topical-triamcinolone-acetonide-0-1-oral-paste-oral-methotrexate-and-a-combination-of-topical-triamcinolone-acetonide-0-1-and-oral-methotrexate-in-moderate-to-severe-oral-lichen-planus
#17
P Chauhan, D De, S Handa, T Narang, U N Saikia
Topical corticosteroids are considered to be the most effective treatment for oral lichen planus (OLP). Methotrexate has been found to be effective in extensive cutaneous lichen planus. The objectives of the study were to evaluate the clinical efficacy and safety of topical triamcinolone 0.1% oral paste, oral methotrexate and a combination of these in symptomatic moderate-to- severe OLP. Forty-five patients were recruited and were allocated to three treatment arms with 15 patients in each treatment arm. They were treated for a period of 16 weeks or until complete clinical remission, whichever was earlier...
November 10, 2017: Dermatologic Therapy
https://www.readbyqxmd.com/read/29123636/management-of-oral-lichen-planus-by-980-nm-diode-laser
#18
Nahid Derikvand, Seyedeh Sara Ghasemi, Mohammad Moharami, Ehsan Shafiei, Nasim Chiniforush
Introduction: Oral lichen planus (OLP) is a mucocutaneous disease with uncertain etiology. As the etiology is unknown standard treatment modalities are not available. The traditional and common treatment relies on corticosteroids whether topical or systemic. In recent years, development of lasers made a proper path to use this instrument for treatment of the diseases which are refractory to conventional treatments. Previous studies in this field used CO2, ND:YAG, Excimer and some wavelength of diode lasers for the treatment of different types of lichen planus...
2017: Journal of Lasers in Medical Sciences
https://www.readbyqxmd.com/read/29121431/outcomes-of-oral-lichen-planus-and-oral-lichenoid-lesions-treated-with-topical-corticosteroid
#19
M A Gonzalez-Moles, J A Gil-Montoya, L Gonzalez-Ruiz, P Ramos, M Bravo
OBJECTIVE: To determine corticosteroid treatment effectiveness in patients with Oral Lichen Planus/Oral Lichenoid Lesions (OLP/OLL). MATERIAL AND METHODS: Twenty-one OLP and eighty-one OLL patients received 0.05% clobetasol propionate (CP) or 0.05% triamcinolone acetonide (TA) in aqueous solution (AS) or orabase (OB), evaluating responses to treatment and follow-up compliance. RESULTS: Lesions were atrophic (72/102; 70.6%), extensive (58/100; 58%), producing eating difficulties (62/102; 60...
November 9, 2017: Oral Diseases
https://www.readbyqxmd.com/read/29118700/looking-beyond-the-cyclosporine-swish-and-spit-technique-in-a-recalcitrant-case-of-erosive-lichen-planus-involving-the-tongue
#20
Aastha Gupta, Kabir Sardana, Ram Kishan Gautam
Oral lichen planus is a relatively common autoimmune disease affecting the middle-aged population. Although no treatment is necessary for a benign asymptomatic case, in case of erosive lichen planus, topical corticosteroids form the mainstay of treatment. In case of failure, apart from tacrolimus, cyclosporine, using the "swish and spit" technique, is a valid therapeutic intervention. In our case, though, this therapeutic option had to be replaced by the systemic use of cyclosporine with gratifying results.
September 2017: Case Reports in Dermatology
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