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https://www.readbyqxmd.com/read/28426486/neutrophilic-figurate-erythema
#1
Yu-Hung Wu, Pa-Fan Hsiao
Neutrophilic figurate erythema (NFE) has been rarely reported. This study aimed to identify the clinical and pathological features of NFE. We retrospectively reviewed the information from diagnostic cases from 2000 to 2013. The diagnosis of NFE includes clinically annular rash, histopathologically predominant neutrophilic perivascular and interstitial infiltrate in the dermis without evidence of vasculitis, and exclusion of other known specific entities. Fifteen cases of NFE were identified, including 11 women and 4 men...
May 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28425111/-nails-only-phenotype-and-partial-dominance-of-p-glu170lys-mutation-in-a-family-with-epidermolysis-bullosa-simplex
#2
Álvaro González-Cantero, Ana Isabel Sánchez-Moya, Cristina Pérez-Hortet, Elena Martínez-Lorenzo, Blas Gómez-Dorado, Cristina Schoendorff-Ortega
Epidermolysis bullosa (EB) is a heterogeneous group of rare, chronic, inherited skin disorders characterized by marked mechanical fragility of epithelial tissues, with blistering and erosions after minor trauma. We present the first report of a nails-only phenotype in two patients with epidermolysis bullosa simplex (EBS) and a heterozygous pGlu170Lys mutation and the second reported case of EBS associated with a homozygous p.Glu170Lys mutation in the KRT5 gene. Our findings may be relevant for genetic counseling and for understanding the inheritance pattern of EBS...
April 19, 2017: Pediatric Dermatology
https://www.readbyqxmd.com/read/28423415/the-potential-organ-involved-in-cantharidin-biosynthesis-in-epicauta-chinensis-laporte-coleoptera-meloidae
#3
Ming Jiang, Shumin Lü, Yalin Zhang
Cantharidin, a terpenoid defensive toxin mainly produced by blister beetles, is among the most widely known insect natural products in the world. However, little is known about the site of cantharidin biosynthesis in vivo. Our previous research showed that 3-hydroxy-3-methylglutary-CoA reductase (HMGR) is an essential enzyme in cantharidin biosynthesis. In this report, we further investigated cantharidin titer and HMGR mRNA expression levels in different tissues of male and female Epicauta chinensis, and performed a comparative analysis of HMGR transcript levels in male Tenebrio molitor, a Tenebrionidae beetle that cannot produce cantharidin...
January 1, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28421352/a-new-role-of-fine-excipient-materials-in-carrier-based-dry-powder-inhalation-mixtures-effect-on-deagglomeration-of-drug-particles-during-mixing-revealed
#4
Ahmed O Shalash, Mustafa M A Elsayed
The potential of fine excipient materials to improve the performance of carrier-based dry powder inhalation mixtures is well acknowledged. The mechanisms underlying this potential are, however, open to question till date. Elaborate understanding of these mechanisms is a requisite for rational rather than empirical development of ternary dry powder inhalation mixtures. While effects of fine excipient materials on drug adhesion to and detachment from surfaces of carrier particle have been extensively investigated, effects on other processes, such as carrier-drug mixing, capsule/blister/device filling, or aerosolization in inhaler devices, have received little attention...
April 18, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/28420255/chemical-and-common-burns-in-children
#5
Shan Yin
Burns are a common cause of preventable morbidity and mortality in children. Thermal and chemical burns are the most common types of burns. Their clinical appearance can be similar and the treatment is largely similar. Thermal burns in children occur primarily after exposure to a hot surface or liquid, or contact with fire. Burns are typically classified based on the depth and total body surface area, and the severity and onset of the burn can also depend on the temperature and duration of contact. Chemical burns are caused by chemicals-most commonly acids and alkalis-that can damage the skin on contact...
May 2017: Clinical Pediatrics
https://www.readbyqxmd.com/read/28418613/complement-independent-blistering-mechanisms-in-bullous-pemphigoid
#6
Hiroaki Iwata, Hideyuki Ujiie
Bullous pemphigoid (BP) is an autoimmune subepidermal blistering disease that clinically demonstrates tense blisters with widespread erythema, histologically demonstrates subepidermal blistering and immunologically demonstrates the presence of circulating autoantibodies against hemidesmosomal molecules. Complement activation has long been regarded as necessary for the generation of the BP. However, certain evidence has recently come to support non-complemental blistering mechanisms. The story of BP blistering mechanisms is a complicated one...
April 18, 2017: Experimental Dermatology
https://www.readbyqxmd.com/read/28418589/a-distinct-cutaneous-microbiota-pofile-in-autoimmune-bullous-disease-patients
#7
Mor Miodovnik, Axel Künstner, Ewan A Langan, Detlef Zillikens, Regine Gläser, Eli Sprecher, John F Baines, Enno Schmidt, Saleh M Ibrahim
Bullous Pemphigoid (BP) is the most common autoimmune blistering disease in Europe. As both the incidence of the disease and the relative proportion of the elderly population continue to rise, it represents a significant medical burden. Whereas some progress has been achieved in defining genetic risk factors for autoimmune blistering diseases, no environmental agent has been conclusively identified. Emerging evidence suggests that host immunity may influence the skin microbiota while the latter modulates cutaneous immunity...
April 18, 2017: Experimental Dermatology
https://www.readbyqxmd.com/read/28414375/evaluation-of-femtosecond-laser-damage-to-gold-pulse-compression-gratings-fabricated-by-magnetron-sputtering-and-e-beam-evaporation
#8
Leilei Wang, Fanyu Kong, Zhilin Xia, Yunxia Jin, Haopeng Huang, Linxin Li, Junming Chen, Yun Cui, Jianda Shao
In this study, two kinds of Au-coated gratings (ACGs) with a period of 1740 lines/mm were fabricated and evaluated. For these ACG samples, magnetron sputtering and e-beam evaporation were used as the gold deposition process, and the samples had a bandwidth of at least 170 nm, with the -1st-order diffraction efficiency exceeding 90% around the center wavelength of 800 nm. The one-on-one damage threshold of ACGs fabricated by magnetron sputtering and e-beam evaporation measured at a pulse width of 60 fs was 0...
April 10, 2017: Applied Optics
https://www.readbyqxmd.com/read/28413899/changes-in-the-oxidative-stress-anti-oxidant-system-after-exposure-to-sulfur-mustard-and-antioxidant-strategies-in-the-therapy-a-review
#9
Miroslav Pohanka, Pavla Martinkova, Martin Brtnicky, Jindrich Kynicky
Sulfur mustard, in a chemical name bis(2-chloroethyl) sulfide, is a chemical warfare agent. It is cytotoxic and blister forming once spread over the skin. Though exact molecular mechanism of sulfur mustard toxic action remains unknown, inflammation and oxidative stress development are considered as the most relevant pathological consequences. Applications of either low molecular weight antioxidants or cofactors for enzymatic antioxidants are considered as suitable ways how to ameliorate the poisoning. In the presented paper, survey of literature on countermeasures against sulfur mustard poisoning are given and evidence of oxidative stress role during sulfur mustard poisoning and availability of antioxidants for the therapy are discussed...
April 16, 2017: Toxicology Mechanisms and Methods
https://www.readbyqxmd.com/read/28413391/minocycline-induced-hyperpigmentation-in-a-patient-treated-with-erlotinib-for-non-small-cell-lung-adenocarcinoma
#10
Ann T Bell, John W Roman, Max L Gratrix, Christina E Brzezniak
INTRODUCTION: While epidermal growth factor receptor (EGFR) inhibitors have improved progression-free survival in patients with non-small cell lung cancer (NSCLC), one of the most common adverse effects is papulopustular skin eruption, which is frequently severe enough to be treated with oral minocycline or doxycycline. CASE: We present a case of an 87-year-old man who developed a severe papulopustular skin eruption secondary to erlotinib therapy for NSCLC. Control of the eruption with 100 mg of minocycline twice daily for 8 months eventually led to blue-gray skin hyperpigmentation...
January 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28412634/chitosan-induced-immunity-in-camellia-sinensis-l-o-kuntze-against-blister-blight-disease-is-mediated-by-nitric-oxide
#11
Swarnendu Chandra, Nilanjan Chakraborty, Koustubh Panda, Krishnendu Acharya
Blister blight disease, caused by an obligate biotrophic fungal pathogen, Exobasidium vexans Massee is posing a serious threat for tea cultivation in Asia. As the use of chemical pesticides on tea leaves substantially increases the toxic risks of tea consumption, serious attempts are being made to control such pathogens by boosting the intrinsic natural defense responses against invading pathogens in tea plants. In this study, the nature and durability of resistance offered by chitosan and the possible mechanism of chitosan-induced defense induction in Camellia sinensis (L...
April 7, 2017: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/28412574/work-place-drug-testing-of-police-officers-after-thc-exposure-during-large-volume-cannabis-seizures
#12
Gregory S Doran, Ralph Deans, Carlo De Filippis, Chris Kostakis, Julia A Howitt
Police officers responsible for the seizure and removal of illegally grown cannabis plants from indoor and outdoor growing operations face the prospect of THC exposure while performing their work duties. As a result, a study investigating the amount of THC on hands and uniforms of officers during raids on cannabis growing houses (CGHs) and forest cannabis plantations (FCPs) and in the air at these sites was conducted. Swabs of gloves/hands, chests, and heads/necks were collected and analysed for THC. Results of hand swabs indicated that officers removing plants from FCPs were exposed to THC concentrations up to 20 times those involved in raids at CGHs, which was mainly associated with the number and size of plants seized...
April 2, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28407871/acral-hemorrhagic-darier-disease
#13
M Á Flores-Terry, M García-Arpa, M Llamas-Velasco, C Mendoza-Chaparro, C Ramos-Rodríguez
Darier disease is an autosomal-dominant inherited condition caused by mutation of a gene, which produces a protein involved in calcium channel regulation. The disease has a variety of manifestations and lacks consistent genotype-phenotype correlations. Acral hemorrhagic Darier disease causes macules, papules, vesicles and/or hemorrhagic blisters on the extremities. Other classic signs of the disease may be present in the same patient or relatives. Histopathology reveals dyskeratosis and suprabasal acantholysis with hemorrhagic lacunae...
April 10, 2017: Actas Dermo-sifiliográficas
https://www.readbyqxmd.com/read/28406394/a-randomised-controlled-trial-to-compare-the-safety-effectiveness-and-cost-effectiveness-of-doxycycline-200%C3%A2-mg-day-with-that-of-oral-prednisolone-0-5%C3%A2-mg-kg-day-for-initial-treatment-of-bullous-pemphigoid-the-bullous-pemphigoid-steroids-and-tetracyclines-blister
#14
Joanne R Chalmers, Fenella Wojnarowska, Gudula Kirtschig, James Mason, Margaret Childs, Diane Whitham, Karen Harman, Anna Chapman, Shernaz Walton, Enno Schmidt, Thomas R Godec, Andrew J Nunn, Hywel C Williams
BACKGROUND: Bullous pemphigoid (BP) is an autoimmune blistering skin disorder with increased morbidity and mortality in the elderly. OBJECTIVES: To evaluate the effectiveness, safety and cost-effectiveness of a strategy of initiating BP treatment with oral doxycycline or oral prednisolone. We hypothesised that starting treatment with doxycycline gives acceptable short-term blister control while conferring long-term safety advantages over starting treatment with oral prednisolone...
March 2017: Health Technology Assessment: HTA
https://www.readbyqxmd.com/read/28403057/fever-in-stevens-johnson-syndrome-and-toxic-epidermal-necrolysis-in-pediatric-cases-laboratory-work-up-and-antibiotic-therapy
#15
Maren Paulmann, Maja Mockenhaupt
Fever is a symptom that often accompanies skin eruptions, especially in children. It can be a sign of an infectious condition presenting with exanthems or it may precede an exanthematous eruption. Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) are severe reactions affecting skin and mucosa with blisters and erosions. High fever occurs in these conditions, frequently before the skin and/or mucosa is affected.
May 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28400894/surgical-suturing-induced-melanocytic-nevi-a-new-type-of-eruptive-melanocytic-nevi
#16
Alexander C Katoulis, Dimitrios Sgouros, Giuseppe Argenziano, Efstathios Rallis, Ioannis Panayiotides, Dimitrios Rigopoulos
BACKGROUND: Nevogenesis is a complex process involving several pathogenetic mechanisms, including genetic factors, hormonal influences and UV-radiation. Trauma has been described as a triggering factor for an alternative pathway of nevogenesis. Eruptive melanocytic nevi (EMN), related either to immunosuppression or to blistering disorders, represent a special type of nevi probably induced by the disruption of the dermo-epidermal junction and consequent proliferation of quiescent pigment cells during re-epithelization...
November 30, 2016: Journal of Dermatological Case Reports
https://www.readbyqxmd.com/read/28393203/increased-mir-424-5p-expression-in-peripheral-blood-mononuclear-cells-from-patients-with-pemphigus
#17
Menglei Wang, Liuping Liang, Li Li, Kai Han, Qian Li, Yusheng Peng, Xuebiao Peng, Kang Zeng
Pemphigus is an autoimmune disease that causes blisters and erosions in the skin and mucous membranes. The development of pemphigus is associated with the imbalance of T‑cell and humoral responses. MicroRNAs (miRNAs) can regulate many cell functions. However, whether miRNA expression is altered in peripheral blood mononuclear cells (PBMCs) during the pathogenesis of pemphigus has not been clarified. The aim of the present study was to examine the miRNA expression profiles of PBMCs from patients with pemphigus...
April 3, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28392652/paraneoplastic-pemphigus-associated-with-a-malignant-thymoma-a-case-of-persistent-and-refractory-oral-ulcerations-following-thymectomy
#18
Jung Min Lim, Sang Eun Lee, Jimyung Seo, Do Young Kim, Takashi Hashimoto, Soo-Chan Kim
Paraneoplastic pemphigus is a rare, life-threatening autoimmune mucocutaneous blistering disease associated with underlying neoplasia, commonly lymphoproliferative tumors. Herein we report a case of paraneoplastic pemphigus with a unique autoantibody profile associated with a malignant thymoma. A 56-year-old female patient presented with relapsing oral ulcerations accompanied by erythematous papules and patches on her extremities for 2 months. Skin and mucosal biopsies identified interface dermatitis with lichenoid lymphocytic infiltration in the upper dermis...
April 2017: Annals of Dermatology
https://www.readbyqxmd.com/read/28392647/serial-changes-of-heat-shock-protein-70-and-interleukin-8-in-burn-blister-fluid
#19
Kicheol Yoo, Kang Yeol Suh, Gi Hun Choi, In-Suk Kwak, Dong Kook Seo, Dohern Kym, Hyeon Yoon, Yong Se Cho, Hye One Kim
BACKGROUND: It has been reported that heat shock protein 70 (HSP70) and interleukin-8 (IL-8) play an important role in cells during the wound healing process. However, there has been no report on the effect of HSP70 and IL-8 on the blisters of burn patients. OBJECTIVE: This study aimed to evaluate the serial quantitative changes of HSP70 and IL-8 in burn blisters. METHODS: Twenty-five burn patients were included, for a total of 36 cases: twenty cases on the first day, six cases on the second, five cases on the third, three cases on the fourth, and two cases on the fifth...
April 2017: Annals of Dermatology
https://www.readbyqxmd.com/read/28390814/meeting-report-of-the-pathogenesis-of-pemphigus-and-pemphigoid-meeting-in-munich-september-2016
#20
Enno Schmidt, Volker Spindler, Rüdiger Eming, Masayuki Amagai, Frank Antonicelli, John F Baines, Meriem Belheouane, Philippe Bernard, Luca Borradori, Marzia Caproni, Giovanni Di Zenzo, Sergei Grando, Karen Harman, Marcel F Jonkman, Hiroshi Koga, Ralf J Ludwig, Andrew P Kowalczyk, Eliane J Müller, Wataru Nishie, Hendri Pas, Aimee S Payne, Christian D Sadik, Allan Seppänen, Jane Setterfield, Hiroshi Shimizu, Animesh A Sinha, Eli Sprecher, Michael Sticherling, Hideyuki Ujiie, Detlef Zillikens, Michael Hertl, Jens Waschke
Autoimmune blistering diseases are a heterogeneous group of about a dozen complex disorders that are characterized by intraepidermal (pemphigus) and subepidermal blistering (pemphigoid diseases and dermatitis herpetiformis). The Pathogenesis of Pemphigus and Pemphigoid Meeting, organized by the Departments of Dermatology in Lübeck and Marburg and the Institute of Anatomy and Cell Biology, Munich, was held in September 2016 in Munich. The meeting brought together basic scientists and clinicians from all continents dedicating their work to autoimmune blistering diseases...
April 5, 2017: Journal of Investigative Dermatology
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