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Oral dysplasia

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https://www.readbyqxmd.com/read/28932032/mast-cells-and-angiogenesis-in-malignant-and-premalignant-oral-lesions-an-immunohistochemical-study
#1
Daisy Laishram, Kavita Rao, H S Uma Devi, N S Priya, T Smitha, H S Sheethal
INTRODUCTION AND OBJECTIVES: Angiogenesis is a complex event facilitated by angiogenic factors released from neoplastic and host immune cells. Among host immune cells, mast cells (MCs) may have greater significance in tumor progression through angiogenesis. The objectives of the study were to evaluate and correlate mast cell density (MCD) and microvessel density (MVD) in normal gingival tissue, leukoplakia with and without dysplasia and oral squamous cell carcinoma (OSCC) cases. MATERIALS AND METHODS: Among eighty selected cases, twenty were of normal gingiva, twenty each of leukoplakia without and with dysplasia and twenty of OSCC...
May 2017: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/28932029/validation-of-immunoexpression-of-tenascin-c-in-oral-precancerous-and-cancerous-tissues-using-imagej-analysis-with-novel-immunohistochemistry-profiler-plugin-an-immunohistochemical-quantitative-analysis
#2
Deepa Rajesh Mane, Alka D Kale, Chetan Belaldavar
BACKGROUND: Immunohistochemistry (IHC) is a molecular technique that has grown tremendously over the years. However, the assessment is only qualitative which is subjective and causes errors. Due to this limitation, several excellent markers have not gained importance and reached clinical trials. Hence, we aimed to quantify IHC by ImageJ analysis with a novel IHC profiler plugin. ImageJ has not been tried in oral precancerous tissues with minimal attempt for matrix markers. AIM: This study aimed to validate the quantification of immunoexpression of tenascin-C (TN-C) in oral precancerous tissues and oral squamous cell carcinoma (OSCC) using ImageJ software with IHC profiler plugin...
May 2017: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/28928893/the-epigenetic-regulation-of-cxcl14-plays-a-role-in-the-pathobiology-of-oral-cancers
#3
Ryuji Nakayama, Kazumune Arikawa, Ujjal K Bhawal
Background: Chemokines selectively attract and activate leukocytes and play roles in a variety of homeostatic and disease processes. Explore the biological properties of CXCL14 seems complicated due to unknown functional characteristics of CXCL14 in cancer. Methods: To study the multistep process of oral cancer development, we analyzed oral samples spanning normalcy, dysplasia and cancer from multiple perspectives, revealing a cascade of progressive changes. Results: CXCL14 protein was expressed in the cytoplasm adjacent to tumors...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28927146/impacts-of-survivin-and-caspase-3-on-apoptosis-and-angiogenesis-in-oral-cancer
#4
Shuxia Li, Yanqi Yang, Yanping Ding, Xiaofei Tang, Zheng Sun
The present study aimed to investigate the impact of survivin and caspase-3 on apoptosis and angiogenesis in oral cancer. A total of 16 oral leukoplakia cases accompanied by low-moderate epithelial dysplasia, 12 cases of oral leukoplakia accompanied by severe epithelial dysplasia, 17 cases of high-moderate differentiated oral squamous cell carcinoma and 10 cases of normal oral mucosa were selected. Immunohistochemistry was used to detect the expression levels of survivin, caspase-3, and caspase inhibitor factor VIII in lesions from each group...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28923296/malignant-transformation-of-oral-leukoplakia-in-a-patient-with-dyskeratosis-congenita
#5
Michelle Bongiorno, Shayna Rivard, Daniel Hammer, Joshua Kentosh
Dyskeratosis congenita (DC) is a rare, inherited, bone marrow failure syndrome caused by premature telomere shortening. The classic mucocutaneous triad of clinical features comprises reticulated skin pigmentation, nail dysplasia, and oral leukoplakia. Multiple somatic features, including bone marrow failure, pulmonary fibrosis, and liver disease, are also common. DC significantly increases the risk for malignant transformation, including myelodysplastic syndrome, acute myeloid leukemia, head and neck squamous cell carcinoma, and anogenital cancer...
August 12, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28923272/the-spectrum-of-oral-lesions-presenting-clinically-with-papillary-verrucous-features
#6
Sara Whitefield, Vadim Raiser, Amir Shuster, Shlomi Kleinman, Benjamin Shlomi, Ilana Kaplan
PURPOSE: We sought to study the spectrum of oral pathologies presenting clinically with papillary-verrucous features. MATERIALS AND METHODS: A 10-year (2007 to 2016) retrospective study of oral papillary lesions was undertaken. All biopsy reports that included a clinical description of papillary or verrucous architecture were retrieved. The data collected included clinical features, size, color, location, histopathologic diagnosis, age, and gender. RESULTS: The study included 137 patients, with a total of 151 lesions...
August 24, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28913687/non-atherosclerotic-vascular-disease-in-women
#7
REVIEW
Lee Joseph, Esther S H Kim
Takayasu arteritis, fibromuscular dysplasia (FMD), spontaneous arterial dissection, Raynaud's phenomenon, and chilblains are vascular conditions that are associated with an increased predisposition in women and are often underdiagnosed. Takayasu arteritis has an incidence rate of 2.6 cases per million individuals per year in the USA and predominantly affects women of childbearing age. HLA-B5 genetic locus is linked with Takayasu arteritis susceptibility. Methods to determine active disease are limiting; currently utilized clinical and imaging findings and laboratory tests are of limited value for this purpose...
September 14, 2017: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28904918/evaluation-of-genetic-polymorphisms-in-glutathione-s-transferase-theta1-glutathione-s-transferase-mu1-and-glutathione-s-transferase-mu3-in-oral-leukoplakia-and-oral-squamous-cell-carcinoma-with-deleterious-habits-using-polymerase-chain-reaction
#8
Ayyagari Kameswara Rao, Peela Parameswar, Sumit Majumdar, Divya Uppala, Sreekanth Kotina, Naga Himabindu Vennamaneni
CONTEXT: Oral squamous cell carcinoma (OSCC) is the sixth most common cancer in the world. As per previous studies, most patients who develop oral cancer are elderly males who are heavy users of tobacco and alcohol; however, the incidence is increasing in younger individuals and in those who neither smoke nor drink. Many of the genes that code for the detoxification enzymes are polymorphic with abnormal activity profiles. AIMS AND OBJECTIVES: The aim of this study was to evaluate the risk of development of oral leukoplakia (OLP) and OSCC in glutathione S-transferase polymorphisms genes in the east coast of Andhra Pradesh population with tobacco consumption habit and habit-free controls using polymerase chain reaction (PCR-restriction fragment length polymorphism)...
July 2017: International Journal of Applied and Basic Medical Research
https://www.readbyqxmd.com/read/28903838/prognostic-potential-of-n-cadherin-in-oral-squamous-cell-carcinoma-via-immunohistochemical-methods
#9
Betina Chandolia, Jai Parkash Rajliwal, Manas Bajpai, Manika Arora
OBJECTIVE: To assess the prognostic potential for N-cadherin in oral squamous cell carcinoma and oral epithelial dysplasia. STUDY DESIGN: Across-sectional study, analytical study. PLACE AND DURATION OF STUDY: Maharishi Markandeshwar College of Dental Science Research (MMCDSR), Ambala, India, from 2011 to 2014. METHODOLOGY: Immunohistochemistry was used to observe the N-cadherin expression in 100 cases having epithelium with normal oral mucosa, oral epithelial dysplastic lesions and oral squamous cell carcinoma (OSCC)...
August 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/28893047/an-intervention-airing-the-effect-of-iranian-propolis-on-epithelial-dysplasia-of-the-tongue-a-preliminary-study
#10
Maedeh Salehi, Mina Motallebnejad, Ali Akbar Moghadamnia, Maryam Seyemajidi, Simin Noori Khanghah, Alireza Ebrahimpour, Tahereh Molania
INTRODUCTION: Since oral cancer is one of the causes of mortality, the use of materials or methods that can reduce cancer or prevent its progression has particular importance. AIM: Aim of the study was to evaluate the antitumor effects of Iranian propolis on dysplastic changes of oral mucosa in rats. MATERIALS AND METHODS: This study was performed on 28 Wistar male rats (aged 7-11 weeks, 160±20 g). They were divided into four groups of seven rats...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28893044/immuno-histochemical-and-quantitative-study-of-melanocytes-and-melanin-granules-in-oral-epithelial-dysplasia
#11
Swapna Honwad, S V Ravi, Mandana Donoghue, Manjiri Joshi
INTRODUCTION: Oral Epithelial dysplasia (OED) is a potentially malignant disorder that is characterized by the presence of architectural and cytological changes. One of the prime factors responsible for the development of these lesions is the usage of tobacco. A variety of factors provide protective mechanism in order to prevent the effects of chemotoxic agents including tobacco products of which, melanin pigmentation is one of the vital elements. AIM: Role of melanocytes in progression of OED has remained unclear, so the present study was done to evaluate density of melanocyte and melanin granules in different grades of epithelial dysplasia and to correlate both findings with different grades of epithelial dysplasia...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28883777/importance-of-early-detection-of-potentially-malignant-lesions-in-the-prevention-of-oral-cancer
#12
Sanja Hadzic, Mirjana Gojkov-Vukelic, Enes Pasic, Almir Dervisevic
OBJECTIVE: The aim of this study was to assess the importance of early diagnosis of potentially malignant lesions in the prevention of oral cancer. MATERIAL AND METHODS: In order to achieve the set objectives, we selected our participant pool. Of the 340 patients who came to the initial examination at the Clinic for Oral Medicine and Periodontology, we selected 40 patients with potentially malignant oral lesions (PMOL) of both sexes and of different ages. After an extensive anamnesis and a clinical examination of all mucous membranes, we documented potentially malignant lesions, their localization, subjective and objective symptoms, duration of pathological lesion, and bad habits (smoking and alcohol)...
June 2017: Materia Socio-medica
https://www.readbyqxmd.com/read/28883729/maternal-exposure-to-nanosized-titanium-dioxide-suppresses-embryonic-development-in-mice
#13
Fashui Hong, Yingjun Zhou, Xiaoyang Zhao, Lei Sheng, Ling Wang
Although nanoscale titanium dioxide (nano-TiO2) has been extensively used in industrial food applications and daily products for pregnant women, infants, and children, its potential toxicity on fetal development has been rarely studied. The main objective of this investigation was to establish the effects of maternal exposure of nano-TiO2 on developing embryos. Female imprinting control region mice were orally administered nano-TiO2 from gestational day 0 to 17. Our findings showed that Ti concentrations in maternal serum, placenta, and fetus were increased in nano-TiO2-exposed mice when compared to controls, which resulted in reductions in the contents of calcium and zinc in maternal serum, placenta, and fetus, maternal weight gain, placental weight, fetal weight, number of live fetuses, and fetal crown-rump length as well as cauda length, and caused an increase in the number of both dead fetuses and resorptions...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28878914/a-novel-keratin-13-variant-in-a-four-generation-family-with-white-sponge-nevus
#14
Stephanie B de Haseth, Egbert Bakker, Maarten H Vermeer, Hakima El Idrissi, Tjalling Bosse, Vincent T H B M Smit, Anna Terron-Kwiatkowski, W H Irwin McLean, Alexander A W Peters, Frederik J Hes
We report a novel KRT13 germ line variant that causes white sponge nevus (WSN) with mucosal dysplasia. Genital, vaginal, and cervical WSN were observed in four female patients, of whom two had premalignant cervical lesions at young age. Two of the 12 patients with oral WSN developed oral squamous cell carcinoma.
September 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28871934/diffuse-palmoplantar-keratoderma-onychodystrophy-universal-hypotrichosis-and-cysts
#15
Tasleem Arif, Syed Suhail Amin, Mohammad Adil, Mohd Mohtashim
Dear Editor, Clouston syndrome, also called hidrotic ectodermal dysplasia (HED), is an autosomal dominant ectodermal dysplasia characterized by a clinical triad of onychodystrophy, generalized hypotrichosis, and palmoplantar keratoderma (1). Herein we report the case of a 24-year-old male with the distinctive clinical triad associated with multiple epidermoid cysts, which probably reflects the phenotype of Clouston syndrome. A 24-year-old male presented to our Department with diffuse thickening of the skin of his palms and soles since infancy...
July 2017: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/28862593/prosthetic-rehabilitation-in-a-pediatric-patient-with-hypohidrotic-ectodermal-dysplasia-a-case-report
#16
Luís Eduardo Lavigne Paranhos Quintanilha, Luís Eduardo Carneiro-Campos, Lívia Azeredo Alves Antunes, Leonardo Santos Antunes, Claudio Pinheiro Fernandes, Fernanda Volpe Abreu
Hypohidrotic ectodermal dysplasia (HED) is a rare ectodermal disease with a systemic expression. Oral abnormalities are common and may include hypodontia and shape irregularities in the primary and permanent dentitions. Rehabilitation of the dental arches in pediatric patients with HED is a challenge because HED is a multifactorial disease that demands a complicated treatment approach and most dentists have limited experience or training in the necessary treatment. In addition, pediatric patients often lack the patience or ability to cooperate with complex prosthetic treatment...
September 2017: General Dentistry
https://www.readbyqxmd.com/read/28858374/pten-allelic-loss-is-an-important-mechanism-in-the-late-stage-of-development-of-oral-leukoplakia-into-oral-squamous-cell-carcinoma
#17
Ligia Akiko Ninokata Miyahara, Flávia Sirotheau Corrêa Pontes, Rommel Mario Rodríguez Burbano, Nicolau Conte Neto, Douglas Magno Guimarães, Felipe Paiva Fonseca, Hélder Antônio Rebelo Pontes
OBJECTIVES: The aim of this study is to analyse allelic loss of the PTEN gene and its protein immunoexpression in dysplastic oral lesions and oral squamous cell carcinomas (OSCCs). MATERIALS AND METHODS: Samples were collected from 153 patients (20 ranulas used as a control - C, 30 leukoplakias with mild dysplasia - MD, 30 leukoplakias with moderate to severe dysplasia - MSD, and 73 OSCC). PTEN protein expression was investigated using immunohistochemistry, and PTEN allelic loss was analysed by fluorescence in situ hybridisation (FISH)...
August 31, 2017: Histopathology
https://www.readbyqxmd.com/read/28851689/the-second-generation-pgi2-analogue-treprostinil-fails-to-chemoprevent-tumors-in-a-murine-lung-adenocarcinoma-model
#18
Lori D Dwyer-Nield, Gregory A Hickey, Micah Friedman, Kevin Choo, Debbie G McArthur, Meredith A Tennis, Melissa L New, Mark Geraci, Robert L Keith
Prostacyclin (prostaglandin I2, PGI2) over-production in FVB/N mice prevents the formation of carcinogen and tobacco smoke induced adenomas, and administration of the oral prostacyclin analog iloprost to wild type mice also prevented carcinogen-induced mouse lung adenoma formation. Former smokers taking oral iloprost showed improved bronchial dysplasia histology compared to placebo. Next generation oral prostacyclin analogues, like treprostinil, were developed for treatment of pulmonary arterial hypertension (PAH)...
August 29, 2017: Cancer Prevention Research
https://www.readbyqxmd.com/read/28846793/a-clinicopathologic-and-epidemiologic-study-of-chronic-white-lesions-in-the-oral-mucosa
#19
Sampurna Ghosh, Sudipta Pal, Soumya Ghatak, Somnath Saha, Surajit Biswas, Prabha Srivastava
Invasive oral squamous cell carcinoma is often preceded by the presence of clinically identifiable premalignant changes of the oral mucosa, including white lesions. We conducted a cross-sectional, observational study to assess the clinicopathologic and epidemiologic aspects of chronic oral mucosal white lesions to determine the necessity of early biopsy in these cases. Our study population was made up of 77 patients-50 males and 27 females, aged 15 to 70 years (mean: 42.9)-who presented with white lesions persisting for at least 4 weeks...
August 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28845899/pfeiffer-syndrome-oral-healthcare-management-and-description-of-new-dental-findings-in-a-craniosynostosis
#20
Yazan Hassona, Abeer Al-Hadidi, Thaer Abu Ghlassi, Hanin El Dali, Crispian Scully
Pfeiffer syndrome is a rare fibroblast growth factor receptor-related craniosynostosis with variable clinical presentations. We describe new dental findings of hypodontia, microdontia, dilacerations, and radicular dentin dysplasia in a 19-year-old girl, and discuss the oral health management.
August 28, 2017: Special Care in Dentistry
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