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Oral Diseases

Loreto Abusleme, Niki M Moutsopoulos
Interleukin-17 (IL-17) is a multifaceted cytokine with diverse roles both in immune-protection and also immunopathology. IL-17 has a well-recognized role in immune surveillance at mucosal and barrier surfaces (Miossec & Kolls, 2012, Song et al., 2016) but also has been increasingly implicated as a driver of immunopathology in settings of autoimmunity and chronic inflammation (Gaffen et al., 2014). This article is protected by copyright. All rights reserved.
October 20, 2016: Oral Diseases
Tianyi Cao, Han Zhang, Leilei Zhou, Yufeng Wang, Guanhuan Du, Hui Yao, Yanni Wang, Qingqiong Luo, Fuxiang Chen, Wanchun Wang, Guoyao Tang
OBJECTIVES: The aim of this study was to optimize the culture system of keratinocytes obtained from oral lichen planus (OLP) patients and verify whether this model could simulate the local inflammatory environment of OLP. MATERIALS AND METHODS: Keratinocytes were isolated from 48 OLP patients and cultured in vitro. The ultrastructure of OLP keratinocytes was observed via electron microscopy. The expression of pancytokeratin and vimentin was determined by immunohistochemistry, and the proliferation of OLP keratinocytes was measured by CCK-8 assay...
October 20, 2016: Oral Diseases
Sarah F M Pilati, Bianca C Bianco, Daniella S C Vieira, Filipe Modolo
OBJECTIVE: This study aimed to determine the histopathological findings in actinic cheilitis (AC) and lip squamous cell carcinomas (LSCC) diagnosed at Federal University of Santa Catarina in order to attempt to predict the evolution from AC to LSCC based on the comparison of two dysplasia classification systems. METHODS: Histopathological features were evaluated according to the World Health Organization classification of dysplasia and binary system of classification...
October 19, 2016: Oral Diseases
Zhongyang Lu, Yanchun Li, Colleen W Brinson, Keith L Kirkwood, Maria F Lopes-Virella, Yan Huang
BACKGROUND: We reported that high-fat diet (HFD)-induced metabolic syndrome (MetS) exacerbates lipopolysaccharide (LPS)-stimulated periodontitis and palmitate, the major saturated fatty acid in the HFD, amplified LPS-stimulated gene expression in vitro. Since CD36 is a major receptor for fatty acids, we investigated periodontal CD36 expression in mice with periodontitis and MetS, and the role of CD36 in inflammatory genes in macrophages stimulated by palmitate. METHODS: MetS and periodontitis were induced in mice by HFD and periodontal injection of LPS, respectively...
October 18, 2016: Oral Diseases
Alan N Baer, Ayako Okuhama, David W Eisele, Jody R Tversky, Thomas J Gniadek
Sialodochitis fibrinosa and allergic parotitis have described rare patients with recurrent salivary gland swelling and mucus plugs, often with atopy. We have evaluated three patients with atopic disease, recurrent salivary gland swelling and an eosinophilic sialodochitis. Two had eosinophil-rich mucus plugs. 56 additional cases were identified in a medical literature database search, each defined by recurrent salivary gland swelling associated with eosinophil-rich mucus plugs or sialodochitis with periductal eosinophilic infiltration...
October 17, 2016: Oral Diseases
Thuy Do
Technological advances in high throughput DNA sequencing have revolutionised microbiology and changed the concept of the pathogenic functions of microbes that persisted for almost two centuries, and was shaped by the germ theory established by Koch and Pasteur. The decreasing costs of next-generation sequencing have allowed more rigorous investigations and improved insight into diverse and complex microbial communities with increasing resolution, particularly through the use of culture-independent approaches...
October 8, 2016: Oral Diseases
József Kun, Anikó Perkecz, Lorenz Knie, György Sétáló, Tamás Tornóczki, Erika Pintér, Ágnes Bán
OBJECTIVE: Oral lichen planus (OLP) is a chronic inflammatory disease of unknown etiology with antigen-specific and non-specific mechanisms. Transient Receptor Potential Ankyrin 1 (TRPA1) is a non-selective cation channel activated by noxious stimuli such as oxidative stress products evoking pain and release of proinflammatory mediators from sensory nerve endings culminating in neurogenic inflammation. Extraneuronal TRPA1s e.g. on immune cells possess yet unkown functions. SUBJECTS AND METHODS: We studied the buccal mRNA expression (qPCR) and protein localization (immunohistochemistry) of TRPA1 receptors, and key OLP mediator transcripts in oral mucosa samples of healthy volunteers (n=9), OLP patients (n=43) and OLP-like hyperkeratotic diseases (n=12)...
October 8, 2016: Oral Diseases
Jumpei Teramachi, Yuji Inagaki, Hiroki Shinohara, Hirohiko Okamura, Di Yang, Kazuhiko Ochiai, Ryoko Baba, Hiroyuki Morimoto, Toshihiko Nagata, Tatsuji Haneji
OBJECTIVE: In the present study, we aimed to clarify the precise mechanism underlying LPS-induced osteoclastogenesis in periodontal disease with a special reference to PKR. MATERIAL AND METHODS: We dissected the role of PKR in LPS-induced osteoclast differentiation and function using primary mouse bone marrow cells and RAW264.7 preosteoclastic cell line. We used a rat experimental periodontitis (PD) model induced by ligature placement with a Porphyromonas gingivalis LPS injection (PD rat), and analyzed the therapeutic effects of C16, a PKR inhibitor, on bone loss in PD rats...
October 8, 2016: Oral Diseases
Gallya Gannot, Mary A Cutting, Dena J Fischer, Laura J Hsu
The biomedical research sciences are currently facing a challenge highlighted in several recent publications: concerns about the rigor and reproducibility of studies published in the scientific literature.Research progress is strongly dependent on published work. Basic science researchers build on their own prior work and the published findings of other researchers. This work becomes the foundation for preclinical and clinical research aimed at developing innovative new diagnostic tools and disease therapies...
October 8, 2016: Oral Diseases
Michael Stormly Hansen, Oliver Niels Klefter, Hanne Olsen Julian, Anne Marie Lynge Pedersen, Steffen Heegaard
Pemphigoid and pemphigus diseases as well as Stevens-Johnson syndrome present as vesiculobullous disorders of the skin and may additionally involve both the oral cavity and the ocular surface. Ocular involvement ranges from mild irritation and dry eye disease to chronic conjunctivitis, symblepharon, eyelid malposition, ocular surface scarring and severe visual loss. In addition to diagnostic assessments, ophthalmologists must treat the dry eye and Meibomian gland dysfunction components of these diseases using a stepladder approach, including eyelid hygiene and lubricants...
October 7, 2016: Oral Diseases
N Nikitakis, W Papaioannou, L I Sakkas, E Kousvelari
To date there is a major effort in deciphering the role of complex microbial communities, especially the oral and gut microbiomes, in the pathogenesis of various diseases. Increasing evidence indicates a key role for the oral microbiome in autoimmune diseases. In this review article, we discuss links of the oral microbiota to a group of autoimmune diseases, i.e., Sjögren's syndrome (SS), systemic lupus erythematosus (SLE), Crohn's disease (CD), and rheumatoid arthritis (RA). We particularly focus on factors that affect the balance between the immune system and the composition of microbiota leading to dysbiosis, loss of tolerance and subsequent autoimmune disease progression and maintenance...
October 7, 2016: Oral Diseases
K-Y Kim, X Zhang, S-M Kim, B-D Lee, I-H Cha
PURPOSE: We aimed to identify a combined prognostic factor for predicting better performance in risk stratification. MATERIALS AND METHODS: We reviewed the clinical and pathological variables of 316 patients with oral squamous cell carcinoma (OSCC) who underwent surgery. To identify a combined predictor, principal component analysis (PCA) was performed. RESULTS: Univariate analysis showed that the independent prognostic variables for overall survival (OS) were pathologic T stage (T1 vs T4, HR = 1...
October 6, 2016: Oral Diseases
Jenny A F Vermeer, Greetje A P Renders, Marion A van Duin, Ineke D C Jansen, Lieneke F Bakker, Sophie A Kroon, Teun J de Vries, Vincent Everts
OBJECTIVES: Bisphosphonates are widely used to treat bone diseases such as osteoporosis. However, they may cause osteonecrosis of the jaw. Here, we investigated whether in vivo exposure to bisphosphonates has a different effect on long bone and jaw osteoclasts, and on the turnover of these different bones. MATERIALS AND METHODS: Zoledronic acid (0.5 mg/kg weekly) was administered intraperitoneally to 3-month-old female mice for up to 6 months. The effects on the number of osteoclasts, bone mineralization, and bone formation were measured in the long bones and in the jaw...
October 5, 2016: Oral Diseases
Luciana Strieder, Cláudia Malheiros Coutinho-Camillo, Victor Costa, Danyel Elias da Cruz Perez, Luiz Paulo Kowalski, Estela Kaminagakura
OBJECTIVES: The aim of this study was to evaluate three histologic grading methods for squamous cell carcinoma (SCC) of the lip, the conventional 3-grade model proposed by the World Health Organization (WHO), tumor budding and depth of invasion (BD) model, and histologic risk assessment (HRA) model, and to correlate them with prognosis. MATERIALS AND METHODS: Fifty-three patients with lip SCC were evaluated. RESULTS: The mean age was 65 years, 69...
September 26, 2016: Oral Diseases
Jun-Yi Zhu, Jian-Gang Ren, Wei Zhang, Feng-Qin Wang, Yu Cai, Ji-Hong Zhao, Gang Chen, Yi-Fang Zhao
OBJECTIVES: To determine the basic biochemical features of microparticles (MP) in patients with venous malformation (VM) of the head and neck. METHODS: MP were isolated from peripheral venous blood of VM patients or healthy subjects and from lesional fluid of VM patients. Flow cytometry and real-time polymerase chain reaction were employed to determine the concentration, cellular origin and RNA expression of obtained MP. A functional coagulation test was applied to measure the coagulant activity of MP...
September 26, 2016: Oral Diseases
M E Peacock, R M Arce, C W Cutler
The list of immunodeficiency diseases grows each year as novel disorders are discovered, classified, and sometimes reclassified due to our ever-increasing knowledge of immune system function. Although the number of patients with secondary immunodeficiencies (SIDs) greatly exceeds those with primary immunodeficiencies (PIDs), the prevalence of both appears to be on the rise probably because of scientific breakthroughs that facilitate earlier and more accurate diagnosis. Primary immunodeficiencies in adults are not as rare as once thought...
September 15, 2016: Oral Diseases
J Hwang, Y-L Kim, S Kang, S Kim, S-O Kim, J H Lee, D-H Han
OBJECTIVES: Our study aims to identify genetic variants associated with hereditary gingival fibromatosis (HGF) by applying whole-exome sequencing (WES) and bioinformatics analyses such as gene set enrichment analysis (GSEA) and protein functional network study. SUBJECTS AND METHODS: Two affected siblings whose grandparents and parents have normal gingiva were chosen for our investigation. Saliva collected from the patients and their parents were used for WES. GSEA and protein functional network study were performed to find gene groups in a biological coordination which are associated with HGF...
September 10, 2016: Oral Diseases
Jlf Antunes, F B de Andrade, M A Peres
OBJECTIVE: To assess the association between dentition status and functional disabilities among community-dwelling older individuals. SUBJECTS AND METHODS: A total of 5012 individuals aged 65-74 were interviewed in 2013 during a nationwide community-based survey. This cross-sectional study used a questionnaire including information on dentition, locomotion impairment, difficulties in basic and instrumental activities of daily life, socio-demographic characteristics, behaviour and general health status...
September 8, 2016: Oral Diseases
G A Rodrigues, N P Qualio, L D de Macedo, Lmar Innocentini, A Ribeiro-Silva, N T Foss, Mac Frade, Acf Motta
Leprosy is a chronic infectious disease caused by Mycobacterium leprae, a bacillus that has a tropism for skin and peripheral nerves. Leprosy treatment is based on a multidrug therapy established by the World Health Organization in 1982 and, despite its widespread use, Brazil ranks second worldwide in numbers of cases. Oral involvement in leprosy has been poorly described in the literature, and few studies have shown that although the bacillus is found in mucosa, specific leprosy lesions are rare and affect patients with advanced stages of the disease...
September 8, 2016: Oral Diseases
H Kagami
No abstract text is available yet for this article.
September 8, 2016: Oral Diseases
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