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Skin disease

Juanjuan Gao, Qi Tang, Xiaohui Zhu, Shihua Wang, Yongli Zhang, Wenbin Liu, Zhiqiang Gao, Hua Yang
Cholesteatoma is a pathologically benign but clinically destructive middle ear disease, which is caused by excessive epidermal migration and uncontrolled hyperproliferation of keratinocytes of squamous epithelium, leading to various clinical manifestations and serious complications, such as hearing loss, dizziness, facial paralysis, meningitis, and hydrocephalus. However, the pathogenesis of cholesteatoma is still not fully understood. Herein, we performed microarray analysis to identify the differentially expressed patterns of lncRNAs in cholesteatoma for the first time...
May 2018: Oncology Reports
Maria V Cannizzaro, Annunziata Dattola, Virginia Garofalo, Ester Del Duca, Luca Bianchi
BACKGROUND: Acne vulgaris is a chronic inflammatory skin disease that manifests as open and closed comedones as well as inflammatory papules, pustules, and nodules localized on face and trunk. Oral isotretinoin demonstrated to be effective in controlling seborrhea, inflammation, Propionibacterium Acnes hyperproliferation and reducing scarring, nevertheless muco-cutaneous side effects, particularly dryness, itching, bruising are commonly seen in patients under treatment with isotretinoin reducing the compliance to the treatment...
April 2018: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
Pei-Ying Yeh, Hsiao-Ping Chen, Jing-Yi Wu
Simultaneous pancreas-kidney (SPK) transplantation is the primary surgical treatment for type I diabetes mellitus with end-stage renal disease. However, this transplant surgery has a high-risk of surgical complications, including duodenal anastomotic leakage, which may lead to pancreas transplantation failure if the leakage worsens. This case report describes a patient who suffered from duodenal anastomotic leakage after SPK transplantation. The digestive enzymes eroded the wound and skin around the wound, resulting in periwound moisture-associated dermatitis...
April 2018: Hu Li za Zhi the Journal of Nursing
Mariana Volpe Arnoni, Claudete Rodrigues Paula, Marcos Ereno Auler, Cirilo Cesar Naozuka Simões, Shirley Nakano, Maria Walderez Szeszs, Márcia de Souza Carvalho Melhem, Virgínia Bodelão Richini Pereira, Hans Garcia Garces, Eduardo Bagagli, Eriques Gonçalves Silva, Melissa Ferreira de Macêdo, Luciana da Silva Ruiz
Fusarium species have emerged as responsible for a broad spectrum of infections, including superficial, locally invasive and disseminated ones, especially in the hospital environment. Since there are few reports of invasive and disseminated fusariosis in children, the aim of this study was to report four cases of nosocomial infection caused by this microorganism in children with cancer hospitalized in a public children's hospital located in Brazil. Two of these patients were female and two were male. All patients presented febrile neutropenia, while three patients had acute lymphocytic leukemia and one patient had Wilms' tumor as underlying disease...
March 21, 2018: Mycopathologia
Jong Han Kim, Hye Ree Kang, Su Yeong Kim, Ji-Eun Ban
Purpose: Human adenovirus infection mimics Kawasaki disease (KD) but can be detected in KD patients. The aim of this study was to determine the clinical differences between KD with adenovirus infection and only adenoviral infection and to identify biomarkers for prediction of adenovirus-positive KD from isolated adenoviral infection. Methods: A total of 147 patients with isolated adenovirus were identified by quantitative polymerase chain reaction. In addition, 11 patients having KD with adenovirus, who were treated with intravenous immunoglobulin therapy during the acute phase of KD were also evaluated...
February 2018: Korean Journal of Pediatrics
Matthew J Robak, Corinne L Richards-Zawacki
Defense against pathogens is one of many benefits that bacteria provide to animal hosts. A clearer understanding of how changes in the environment affect the interactions between animals and their microbial benefactors is needed in order to predict the impact and dynamics of emerging animal diseases. Due to its dramatic effects on the physiology of animals and their pathogens, temperature may be a key variable modulating the level of protection that beneficial bacteria provide to their animal hosts. Here we investigate how temperature and the makeup of the skin microbial community affect the susceptibility of amphibian hosts to infection by Batrachochytrium dendrobatidis (Bd) , one of two fungal pathogens known to cause the disease chytridiomycosis...
2018: Frontiers in Microbiology
Marta Podgórska, Monika Ołdak, Anna Marthaler, Alina Fingerle, Barbara Walch-Rückheim, Stefan Lohse, Cornelia S L Müller, Thomas Vogt, Mart Ustav, Artur Wnorowski, Magdalena Malejczyk, Sławomir Majewski, Sigrun Smola
Persistent genus β-HPV (human papillomavirus) infection is a major co-factor for non-melanoma skin cancer in patients suffering from the inherited skin disease epidermodysplasia verruciformis (EV). Malignant EV lesions are particularly associated with HPV type 5 or 8. There is clinical and molecular evidence that HPV8 actively suppresses epithelial immunosurveillance by interfering with the recruitment of Langerhans cells, which may favor viral persistence. Mechanisms how persistent HPV8 infection promotes the carcinogenic process are, however, less well understood...
2018: Frontiers in Microbiology
Shravan Shanbhag, Amol Amonkar
Merkel cell carcinoma is a primary neuroendocrine tumour of the skin arising from the dermis and extending into the subcutis, occurring commonly in sun-exposed areas of the head and neck of the elderly. Clinically, non-specific erythematous or violaceous firm nodules or small plaques which may be surrounded by small adjacent satellite tumours are seen. Diagnosis of Merkel cell carcinoma is difficult by light microscopy alone and need of ancillary techniques like electron microscopy and immunohistochemistry may be necessary...
March 2018: Indian Journal of Surgical Oncology
Tomasz Herjan, Lingzi Hong, Jodi Bubenik, Katarzyna Bulek, Wen Qian, Caini Liu, Xiao Li, Xing Chen, Hui Yang, Suidong Ouyang, Hao Zhou, Junjie Zhao, Kommireddy Vasu, Eric Cockman, Mark Aronica, Kewal Asosingh, Donny D Licatalosi, Jun Qin, Paul L Fox, Thomas A Hamilton, Donna Driscoll, Xiaoxia Li
Mechanisms that degrade inflammatory mRNAs are well known; however, stabilizing mechanisms are poorly understood. Here, we show that Act1, an interleukin-17 (IL-17)-receptor-complex adaptor, binds and stabilizes mRNAs encoding key inflammatory proteins. The Act1 SEFIR domain binds a stem-loop structure, the SEFIR-binding element (SBE), in the 3' untranslated region (UTR) of Cxcl1 mRNA, encoding an inflammatory chemokine. mRNA-bound Act1 directs formation of three compartmentally distinct RNA-protein complexes (RNPs) that regulate three disparate events in inflammatory-mRNA metabolism: preventing mRNA decay in the nucleus, inhibiting mRNA decapping in P bodies and promoting translation...
April 2018: Nature Immunology
Toshifumi Nomura, Shotaro Suzuki, Toshinari Miyauchi, Masae Takeda, Satoru Shinkuma, Yasuyuki Fujita, Wataru Nishie, Masashi Akiyama, Hiroshi Shimizu
Heterozygous chromosomal inversions suppress recombination. Therefore, they may potentially influence recombination-associated phenotypes of human diseases, but no studies have verified this hypothesis. Here, we describe a 35-year-old man with severe congenital ichthyosis. Mutation analysis revealed a heterozygous splice-site mutation, c.1374-2A>G (p.Ser458Argfs*120), in KRT10 on 17q21.2. This mutation was previously reported in patients with ichthyosis with confetti type I (IWC-I), a prominent skin disease characterized by the frequent occurrence of recombination-induced reversion of pathogenic mutations...
March 22, 2018: JCI Insight
Veronica Mendoza-Reinoso, Annemiek Beverdam
The skin constantly self-renews throughout adult life. Wnt/β-catenin signaling plays a key role in promoting keratinocyte proliferation in the hair follicles and in the interfollicular epidermis. A recent report demonstrated that epidermal YAP activity drives β-catenin activation to promote keratinocyte proliferation in the murine skin. However, it remains unclear whether this is caused by paracrine activation of canonical Wnt signaling or through other YAP/β-catenin regulatory interactions. In the present study, we found that XAV939-inhibition of canonical WNT signaling in skin of YAP2-5SA-ΔC mice resulted in diminished β-catenin activation, reduced keratinocyte proliferation, and a mitigation of the hyperplastic abnormalities in the interfollicular epidermis, signifying a canonical WNT ligand-dependent mechanism...
March 10, 2018: Stem Cell Research
Wing Lee Chan, Magdalena Steiner, Tomasz Witkos, Johannes Egerer, Björn Busse, Shuji Mizumoto, Jan M Pestka, Haikuo Zhang, Ingrid Hausser, Layal Abo Khayal, Claus-Eric Ott, Mateusz Kolanczyk, Bettina Willie, Thorsten Schinke, Chiara Paganini, Antonio Rossi, Kazuyuki Sugahara, Michael Amling, Petra Knaus, Danny Chan, Martin Lowe, Stefan Mundlos, Uwe Kornak
Gerodermia osteodysplastica (GO) is characterized by skin laxity and early-onset osteoporosis. GORAB, the responsible disease gene, encodes a small Golgi protein of poorly characterized function. To circumvent neonatal lethality of the GorabNull full knockout, Gorab was conditionally inactivated in mesenchymal progenitor cells (Prx1-cre), pre-osteoblasts (Runx2-cre), and late osteoblasts/osteocytes (Dmp1-cre), respectively. While in all three lines a reduction in trabecular bone density was evident, only GorabPrx1 and GorabRunx2 mutants showed dramatically thinned, porous cortical bone and spontaneous fractures...
March 21, 2018: PLoS Genetics
Zhanli Fu, Meng Liu, Xueqi Chen, Xing Yang, Qian Li
A 36-year-old woman suffering from oral ulcerations, skin rash, and dyspnea was suspected of having paraneoplastic pemphigus. An F-FDG PET/CT was performed to detect the underlying neoplasms and revealed an F-FDG-avid mass in the lower right retroperitoneum. The mucocutaneous lesions and dyspnea were relieved after the tumor excision, and the pathology indicated Castleman disease.
March 20, 2018: Clinical Nuclear Medicine
Anna E Kersh, Ron J Feldman
Rituximab is an anti-CD20 antibody used to deplete B lymphocytes in lymphoma and autoimmune disease. Case reports in the literature describe patients who paradoxically develop autoimmune disease in response to rituximab therapy. We review the reports of autoimmune pathology in response to rituximab treatment and the proposed mechanisms of this reaction. These autoimmune diseases manifest in various organ systems, most frequently the skin and lungs, and involve distinct mechanisms of pathogenesis mediated by potential alterations in B and T lymphocytes, innate immune system, and specific environmental factors...
March 21, 2018: Journal of Clinical Rheumatology: Practical Reports on Rheumatic & Musculoskeletal Diseases
Elias Fiani, François Guisset, Quitterie Fontanges, Jacques Devière, Arnaud Lemmers
INTRODUCTION : Esophagitis dissecans superficialis (EDS) is a rare desquamative disorder of the eso-phagus, characterized by sloughing of the superficial mucosa. It is a benign entity of uncertain etiology. Most cases of EDS are idiopathic but can be caused by medications, hot beverages, chemical irritants, celiac disease and many skin conditions. AIM: Knowing that few case series have described this entity, we decided to review all the cases diagnosed in our center to characterize them...
July 2017: Acta Gastro-enterologica Belgica
Larissa Bueno Tofani, Lívia Vieira Depieri, Patrícia Mazureki Campos, Thalita Bachelli Riul, Kamilla Swiech Antonietto, Márcia Carvalho de Abreu Fantini, Maria Vitória Lopes Badra Bentley
PURPOSE: Vitiligo is a skin disease characterized by depigmentation and the presence of white patches that are associated with the loss of melanocytes. The most common explanation for the cause of this condition is that it is an autoimmune condition. TyRP-1 is involved in melanin pigment synthesis but can also function as a melanocyte differentiation antigen. This protein plays a role in the autoimmune destruction of melanocytes, which results in the depigmentation, characteristic of this disease...
March 20, 2018: Pharmaceutical Research
Dong-Uk Yang, Muhammad Hanif Siddiqi, Sungeun Ahn, Sera Kang, Hae-Yong Noh, Deok-Chun Yang
Osteoporosis is a widespread musculoskeletal deformity that affects thousands of older people every year, leading to bone abnormalities and ultimately increasing the risk of bone fractures in both genders. It is considered a lethal disease causing death in thousands of people at the late stage of life. Dendropanax morbifera Leveille is a subtropical broad-leaved prevalent species in Korea. Extracts of the leaves, stems, roots, and seeds of D. morbifera have been used in traditional medicine for the treatment of numerous diseases such as diabetes, atherogenesis, skin disorders, and headaches...
March 20, 2018: In Vitro Cellular & Developmental Biology. Animal
Qinhua Zhou, Xiaoying Hui, Wenjing Ying, Jia Hou, Wenjie Wang, Danru Liu, Ying Wang, Yeheng Yu, Jingyi Wang, Jinqiao Sun, Qian Zhang, Xiaochuan Wang
PURPOSE: Clinical diagnosis and treatment for chronic granulomatous disease (CGD) have advanced greatly in recent years. However, CGD patients in China have unique clinical features and infection spectrums, which are challenging to their caretakers. Here, we summarized the clinical characteristics, genetic features, treatment, and prognosis of CGD in a single center in Shanghai. METHODS: One hundred sixty-nine CGD patients were recruited between January 2004 and May 2017 based on clinical diagnosis...
March 20, 2018: Journal of Clinical Immunology
Wudian Xiao, Yongsong Hu, Yan Tong, Mingcheng Cai, Hongbing He, Buwei Liu, Yu Shi, Jie Wang, Yinghe Qin, Songjia Lai
Emerging evidences suggest that long non-coding RNAs (lncRNAs) play important role in disease development. However, the role of rabbit lncRNAs in the pathogenesis of dermatophytosis remains elusive. The present study aimed to study and characterize lncRNA transcriptome in 8 T. mentagrophytes-induced female rabbit dermatophytosis lesional (TM) and 4 normal saline-infected (NS) skin biopsies using RNAseq. We identified 5883 lncRNAs in 12 strand-specific RNA-seq libraries and found 64 differentially expressed lncRNAs (q < 0...
March 20, 2018: Functional & Integrative Genomics
Shiming Cheng, Deanna Tollefson, Guangxue He, Yuan Li, Hui Guo, Shua Chai, Fangfang Gao, Fei Gao, Guoxin Han, Liping Ren, Yulin Ren, Jianbo Li, Lixia Wang, Jay K Varma, Dongmei Hu, Haiying Fan, Fei Zhao, Emily Bloss, Yu Wang, Carol Y Rao
Background: Health care workers are at high risk for tuberculosis (TB). China, a high burden TB country, has no policy on medical surveillance for TB among healthcare workers. In this paper, we evaluate whether China's national TB diagnostic guidelines could be used as a framework to screen healthcare workers for pulmonary TB disease in a clinical setting in China. Methods: Between April-August 2010, healthcare workers from 28 facilities in Inner Mongolia Autonomous Region, China were eligible for TB screening, comprised of symptom check, chest X-ray and tuberculin skin testing...
2018: Journal of Occupational Medicine and Toxicology
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