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Pawel Posadzki, Josip Car
Clinical Question: Are light therapies effective and safe for treating acne? Bottom Line: The evidence for all light therapies remains weak and inconclusive. Red-light methyl aminolevulinate-photodynamic therapy (MAL-PDT) was the only treatment associated with a small though clinically insignificant reduction in the number of inflamed lesions and in global improvement as assessed by an investigator in moderate to severe acne. Red-light MAL-PDT was not associated with higher rates of severe adverse effects than placebo or no treatment...
March 14, 2018: JAMA Dermatology
Jianbo Chen, Yao Zhang, Yunsheng Liang, Ming Zhao, Hai Long, Rong Xiao, Haijing Wu, Jieyue Liao, Shuaihantian Luo, Guiying Zhang, Qianjin Lu
Pemphigus vulgaris is an autoimmune blistering disease characterized by a loss of epidermal cell-cell adhesion caused by anti-desmoglein (Dsg) autoantibodies. The pathogenesis of PV remains unclear. However, abnormal frequency and function of Th2 cells are believed to contribute to PV. We investigated Nr4a2, a transcription factor, which has been found to regulate T cell differentiation, for its association with Th2 cell differentiation and functions in PV. We found significantly decreased mRNA and protein levels of Nr4a2 in CD4+ T cells from patients with PV, compared with healthy control subjects...
February 16, 2018: Oncotarget
Alessio Cimmino, Paola Nocera, Benedetto Teodoro Linaldeddu, Marco Masi, Marcin Gorecki, Gennaro Pescitelli, Lucio Montecchio, Lucia Maddau, Antonio Evidente
From the culture filtrates of Diaporthella cryptica, an emerging hazelnut pathogen, 2-hydroxy-3-phenylpropanoate methyl ester and its 3-(4-hydroxyphenyl) and 3-(1H-indol-3-yl) analogues, named crypticins A-C, were isolated together with the well-known tyrosol. Crypticins A-C were identified by spectroscopic (essentially NMR and HRESI MS) methods. The R absolute configuration (AC) of crypticin A was determined comparing its optical rotation power and ECD spectrum with those of papuline, the methyl ester of (-)(S)-phenyllactic acid isolated as the main phytotoxin of Pseudomonas syringae pv papulans, responsible for apple blister spot...
March 14, 2018: Journal of Agricultural and Food Chemistry
Roberta Lotti, En Shu, Tiziana Petrachi, Alessandra Marconi, Elisabetta Palazzo, Marika Quadri, Ann Lin, Lorraine A O'Reilly, Carlo Pincelli
Pemphigus is a blistering disease characterized by pemphigus autoantibodies (PVIgG) directed mostly against desmogleins (Dsgs), resulting in the loss of keratinocyte adhesion (acantholysis). Yet, the mechanisms underlying blister formation remain to be clarified. We have shown previously that anti-Fas ligand (FasL) antibody (Ab) prevents PVIgG-induced caspase-8 activation and Dsg cleavage in human keratinocytes, and that sera from pemphigus patients contain abnormally increased levels of FasL. Here, we demonstrate that recombinant FasL induces the activation of caspases prior to Dsg degradation, and anti-FasL Ab prevents acantholysis in cultured keratinocytes...
2018: Frontiers in Immunology
Satyanarayana Achanta, Narendranath Reddy Chintagari, Marian Brackmann, Shrilatha Balakrishna, Sven-Eric Jordt
The skin is highly sensitive to the chemical warfare agent in mustard gas, sulfur mustard (SM) that initiates a delayed injury response characterized by erythema, inflammation and severe vesication (blistering). Although SM poses a continuing threat, used as recently as in the Syrian conflict, no mechanism-based antidotes against SM are available. Recent studies demonstrated that Transient Receptor Potential Ankyrin 1 (TRPA1), a chemosensory cation channel in sensory nerves innervating the skin, is activated by SM and 2-chloroethyl ethyl sulfide (CEES), an SM analog, in vitro, suggesting it may promote vesicant injury...
March 10, 2018: Toxicology Letters
Na Jiang, Lei Shi, Jieping Lin, Lifang Zhang, Yanxia Peng, Huiying Sheng, Ping Wu, Qingjun Pan
BACKGROUND: Rotavirus (RV) and enteric adenovirus (AdV) mainly cause infantile infectious gastroenteritis. Several separate test methods for the detection of RV or AdV are currently available, but few tests are able to simultaneously detect both RV and AdV viruses, especially in primary medical institutions. METHODS: The present study was mainly designed to compare the performance of two combined test strips for the detection of RV and AdV: a rotavirus-adenovirus strip with fluorescent microspheres for tracers (FMT); and the CerTest rotavirus-adenovirus blister strip with colored microspheres for tracers (CMT)...
March 13, 2018: Virology Journal
R J Cong, J F Liu, Y Jiang, Duolikun Dilixiati, X D Hou, L P Zheng
Objective: To explore the influence of the lower extremity abnormal alignment and the joint surface, and to explore the surgical skills. Methods: Twenty-two cases of tibial plateau Schatzker Ⅵ fracture internal fixation failure revision from January 2012 to January 2017 in Department of Orthopedics, Shanghai 10(th) Hospital.One year follow-up after initial surgery to make sure of failure.Three-dimensional CT scan, radiography, infection index, gait analysis, knee joint ROM, femur tibia angle, tibial plateau tibial shaft angle and posterior slope if tibial plateau were observed...
March 1, 2018: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
Zygfryd Witkiewicz, Slawomir Neffe, Ewa Sliwka, Javier Quagliano
Recent advances in analysis of precursors, simulants and degradation products of chemical warfare agents (CWA) are reviewed. Fast and reliable analysis of precursors, simulants and CWA degradation products is extremely important at a time, when more and more terrorist groups and radical non-state organizations use or plan to use chemical weapons to achieve their own psychological, political and military goals. The review covers the open source literature analysis after the time, when the chemical weapons convention had come into force (1997)...
March 13, 2018: Critical Reviews in Analytical Chemistry
Yousheng Yan, Zhaoyan Meng, Shengju Hao, Fang Wang, Xiaohua Jin, Daguang Sun, Huafang Gao, Xu Ma
BACKGROUND: Dystrophic epidermolysis bullosa (DEB) is an inherited skin disorder with variable severity and heterogeneous genetic involvement. Recessive DEB (RDEB) is a rare heritable blistering skin condition caused by loss-of-function mutations in the COL7A1 gene. AIM: This study aimed to determine the genetic basis of three Chinese RDEB patients from different families and identify correlations between phenotype and genotype. METHODS: All three patients were diagnosed with RDEB based on typical phenotype...
January 2018: Annals of Clinical and Laboratory Science
Mayumi Kamaguchi, Hiroaki Iwata, Hideyuki Ujiie, Ken Natsuga, Wataru Nishie, Yoshimasa Kitagawa, Hiroshi Shimizu
The basement membrane zone (BMZ) consists of multiple components, including collagen XVII (COL17), which is the target of bullous pemphigoid (BP). No research has addressed the differences in BMZ components between the skin and the oral mucosa; therefore, we investigated the BMZ proteins, with a focus on COL17. The mRNA and protein expression levels of COL17 were significantly higher in oral keratinocytes (OKCs) than in skin keratinocytes (SKCs). Hemidesmosomal COL17 expression was markedly higher in OKCs than in SKCs, and its level was associated with adhesion strength...
March 9, 2018: Journal of Investigative Dermatology
Yuta Ito, Shinichi Makita, Akiko Miyagi Maeshima, Shunsuke Hatta, Tomotaka Suzuki, Sayako Yuda, Suguru Fukuhara, Wataru Munakata, Tatsuya Suzuki, Dai Maruyama, Koji Izutsu
Paraneoplastic pemphigus (PNP) is a severe autoimmune blistering disease associated with an underlying malignancy, and its prognosis is poor. We herein report the first patient with B-cell chronic lymphocytic leukemia/small lymphocytic lymphoma (B-CLL/SLL)-associated PNP successfully treated with the Bruton's tyrosine kinase inhibitor ibrutinib and rituximab. Although his PNP lesions did not improve with ibrutinib monotherapy, the combination of ibrutinib and rituximab was effective against B-CLL/SLL-associated PNP...
March 9, 2018: Internal Medicine
Themistoklis I Papasilekas, Konstantinos M Themistoklis, Alexandros A Andreou
Blister aneurysms are rare lesions characterized by a bleb-like appearance in combination with prominent fragility. They mainly affect the supraclinoid internal carotid artery and they are often thought of as dissecting or even false lesions. Treatment of such lesions has been a matter of debate during the past few years with authors competing, in an ever changing field, for best results. Both surgical and endovascular modalities have been tried, with every technique having though its own limitations and pitfalls...
March 7, 2018: Clinical Neurology and Neurosurgery
M Sawada, T Hida, H Ujiie, H Iwata, H Uhara
Epidermolysis bullosa acquisita (EBA) and anti-p200 pemphigoid are uncommon subepidermal autoimmune bullous diseases caused by autoantibodies against the 200-kDa protein and 290-kDa type VII collagen, respectively. Here we describe a patient with autoantibodies against both 200-kDa and 290-kDa antigens.A 63-year-old-man had itchy tense blisters and edematous erythemas scattered on his trunk, buttocks, extremities and soles (Fig. 1a). There were no ocular or mucosal lesions. Psoriatic skin lesions were not observed...
March 10, 2018: Journal of the European Academy of Dermatology and Venereology: JEADV
Dylan Haynes, Michael Lasarev, Jesse Keller
BACKGROUND: As usage of systemic antibiotic therapies has increased, so too has bacterial resistance. Antibiotic stewardship thus rests in part on judicious use of empiric treatment. The specific factors which underlie erroneous prescription patterns for dermatological conditions have not yet been well elucidated. OBJECTIVE: The objective of this study was to identify whether a predefined group of dermatologic conditions under the heading "pseudobacterial"-including eczematous conditions, arthropod assault, herpes zoster, neurodermatoses, autoimmune blistering disorders, and neutrophilic dermatoses-are associated with increased antibiotic use prior to dermatology referral...
March 9, 2018: International Journal of Dermatology
Katarzyna Klysik, Aneta Pietraszek, Anna Karewicz, Maria Nowakowska
BACKGROUND: Herpes simplex (HSV) viruses are widely spread, highly contagious human pathogens. The statistics indicate that 50-90% of adults worldwide are seropositive for these viruses, mainly HSV-1 and HSV-2. The primary infection results in the appearance of watery blisters (cold sores) on the skin, lips, tongue, buccal mucosa or genitals. The ocular infection is the major cause of corneal blindness in the Western World. Once the HSV virus enters human body it cannot be completely eradicated because HSV viruses are able to change into their latent form which can survive the treatment...
March 8, 2018: Current Medicinal Chemistry
G Simonte, G Isernia, B Fiorucci, E Paciaroni, E Cieri, A Rebonato, M Lenti
During implantation of an Ovation endograft for abdominal aortic aneurysm correction a patient experienced anaphylactic reaction following polymer leakage outside the device circuit. Procedure was completed after hemodynamic stabilization. Since postoperative day ll, patient complained for loss of legs strength. Medullar injury was excluded by electromyography test and the clinical signs attributed to muscular necrosis and peripheral nerve involvement following arterial embolization. Furthermore, immediately after surgery, a wide erythematous area appeared in the lumbar region...
March 5, 2018: Annals of Vascular Surgery
Pierre Picquet, Kim O Heckers, Ekaterina Kolesnik, Anton Heusinger, Rachel E Marschang
Two captive Bocourt water snakes ( Subsessor bocourti) presented with chronic white skin lesions on their heads; Ophidiomyces ophiodiicola was identified by culture and polymerase chain reaction (PCR) in skin scrapings from both snakes. Histopathology performed in one Bocourt water snake revealed fungal hyphae in epidermal structures of lesions. One Pueblan milk snake ( Lampropeltis triangulum campbelli) from the same zoologic institution presented with yellow crusts and white blisters on its body, from which O...
March 2018: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
Olga V Sinitsyna, Georgy B Meshkov, Anastasija V Grigorieva, Alexander A Antonov, Inna G Grigorieva, Igor V Yaminsky
Graphite oxide has a complex structure that can be modified in many ways to obtain materials for a wide range of applications. It is known that the graphite precursor has an important role in the synthesis of graphite oxide. In the present study, the basal-plane surface of highly annealed pyrolythic graphite (HAPG) was oxidized by Hummers' method and investigated by Raman spectroscopy and atomic force microscopy. HAPG was used as a graphite precursor because its surface after cleavage contains well-ordered millimeter-sized regions...
2018: Beilstein Journal of Nanotechnology
Saneerat Porntharukcharoen, Suthinee Rutnin, Natta Rajatanavin
Mycosis fungoides is the most common form of cutaneous T-cell lymphoma. Both large-cell transformed mycosis fungoides and mycosis fungoides bullosa are rare presentations and predict unfavorable prognosis. We report the case of a 61-year-old woman who presented with generalized erythematous scaly annular plaques, and histopathology confirmed the diagnosis of mycosis fungoides. She was treated with various conventional therapies but only achieved partial response and always relapsed after discontinuation of treatment...
September 2017: Case Reports in Dermatology
Vijay Agarwal, Daniel L Barrow
No abstract text is available yet for this article.
March 3, 2018: Operative Neurosurgery (Hagerstown, Md.)
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