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Oral dysplasia

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https://www.readbyqxmd.com/read/28438290/programmed-death-ligand-1-pd-l1-expression-and-tumor-microenvironment-implications-for-patients-with-oral-precancerous-lesions
#1
Takahiro Yagyuu, Kinta Hatakeyama, Mitsuhiko Imada, Miyako Kurihara, Yumiko Matsusue, Kazuhiko Yamamoto, Chiho Obayashi, Tadaaki Kirita
OBJECTIVES: Cancer immunoediting represents a relatively novel concept attempting to explain the process of tumor escape from the host immune system response. Here, we attempted to elucidate the role of programmed death ligand 1 (PD-L1), the tumor microenvironment, and tumor escape mechanisms that allow malignant transformation of oral precancerous lesions. MATERIALS AND METHODS: Patients with oral precancerous lesions managed at the Nara Medical University Hospital, Japan, (n=120) were enrolled in this study...
May 2017: Oral Oncology
https://www.readbyqxmd.com/read/28426376/evaluation-of-different-laser-supported-surgical-protocols-for-the-treatment-of-oral-leukoplakia-a-long-term-follow-up
#2
Samir Nammour, Toni Zeinoun, Amaury Namour, Alain Vanheusden, Paolo Vescovi
PURPOSE: The aim of this study was to evaluate the long-term success rate of oral leukoplakia treatments by using different laser-supported surgical protocols. PATIENTS AND METHODS: Overall, 2347 diagnosed homogeneous oral leukoplakias were treated with CO2 laser and were included in this study. Different surgical protocols (P) were used: P1 (SV = superficial scanning) was a complete superficial vaporization of the leukoplakia by a scanning mode in two passages respecting an overlapping...
April 20, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28419846/bit1-regulates-cell-migration-and-survival-in-oral-squamous-cell%C3%A2-carcinoma
#3
Yan Xiao, Yanjie Yang, Jing Wang, Wenlu Li
PURPOSE: Increasing evidence has shown that Bcl-2 inhibitor of transcription 1 (Bit1) involves a variety of biological processes in the process of tumor development and progression. We hypothesized that Bit1 would be overexpressed in oral squamous cell carcinoma (OSCC); therefore, we examined Bit1 gene expression and protein production, as well as explored the effect of elevated Bit1 levels on OSCC cells. MATERIALS AND METHODS: We investigated the use of quantitative real-time reverse transcription-polymerase chain reaction and immunohistochemistry analysis for Bit1 messenger RNA and protein levels...
March 23, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28419085/neonatal-outcomes-of-moderatelyly-preterm-infants-compared-to-extremely-preterm-infants
#4
Michele C Walsh, Edward F Bell, Sarah Kandefer, Shampa Saha, Waldemar A Carlo, Carl T D'Angio, Abbot R Laptook, Pablo J Sanchez, Barbara J Stoll, Seetha Shankaran, Krisa P Van Meurs, Noah Cook, Rosemary D Higgins, Abhik Das, Nancy S Newman, Kurt Schibler, Barbara Schmidt, C Michael Cotten, Brenda B Poindexter, Kristi L Watterberg, William E Truog
BACKGROUND: Extremely preterm infants (EPT, <29 weeks' gestation) represent only 0.9% of births in the U.S., yet these infants are focus of most published research. Moderately preterm neonates (MPT, 29-33(6/7) weeks), are an understudied group of high-risk infants. METHODS: Objective: To determine the neonatal outcomes of MPT across the gestational age spectrum, and to compare these to EPT. A prospective observational cohort was formed in 18 Level 3-4 NICUs in the Eunice Kennedy Shriver NICHD Neonatal Research Network...
April 18, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28415704/maternal-exposure-to-di-n-butyl-phthalate-dbp-induces-renal-fibrosis-in-adult-rat-offspring
#5
Yi-Ping Zhu, Lei Chen, Xing-Jie Wang, Qi-Heng Jiang, Xiao-Yu Bei, Wen-Lan Sun, Shu-Jie Xia, Jun-Tao Jiang
This study was to determine the impact of maternal exposure to di-n-butyl phthalate (DBP) on renal development and fibrosis in adult offspring. Pregnant rats received DBP at a dose of 850 mg/kg BW/day by oral perfusion during gestational days 14-18. In DBP exposed newborn offspring, gross observation and histopathological examination revealed the dysplasia of kidney. The expression of genes related to renal development was also changed. In DBP exposed adult offspring, histopathological examination and Masson's trichrome staining revealed the pathological changes of renal fibrosis...
March 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28413596/non-syndromic-multiple-supernumerary-premolars-clinicoradiographic-report-of-five-cases
#6
Renu Tanwar, Vipul Jaitly, Aadya Sharma, Rashmi Heralgi, Munish Ghangas, Ankur Bhagat
Hyperdontia or supernumerary teeth in both arches without any syndromic manifestation are extremely rare. Supernumerary teeth are commonly associated with Gardner's syndrome, cleft lip and palate, cleidocranial dysplasia and trichorhinopha-langeal syndrome. Five cases of non-syndromic multiple premolars of maxillary and mandibular arches in Indian patients are presented here. This case series reports three cases with multiple (9 in maximum), bilaterally impacted and erupted supernumerary teeth and two cases with supernumerary premolars in non-syndromic cases from Indian patients...
2017: Journal of Dental Research, Dental Clinics, Dental Prospects
https://www.readbyqxmd.com/read/28412260/is-oral-biopsy-associated-with-change-in-tobacco-or-alcohol-use
#7
Tiffany M Peters, Ceib Phillips, Valerie A Murrah
PURPOSE: Tobacco and alcohol remain the predominant risk factors for oral cancer, but the relation between having an oral biopsy examination and cessation of these risk factors is unknown. Therefore, this investigation examined whether there might be an association between oral biopsy examination and change in risk factor use. MATERIALS AND METHODS: A survey was sent to a cohort consisting of a consecutive sample of patients identified in the University of North Carolina Oral Pathology database...
March 22, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28408991/transplantation-of-tissue-engineered-cell-sheets-for-stricture-prevention-after-endoscopic-submucosal-dissection-of-the-oesophagus
#8
Eduard Jonas, Sebastian Sjöqvist, Peter Elbe, Nobuo Kanai, Jenny Enger, Stephan L Haas, Ammar Mohkles-Barakat, Teruo Okano, Ryo Takagi, Takeshi Ohki, Masakazu Yamamoto, Makoto Kondo, Katrin Markland, Mei Ling Lim, Masayuki Yamato, Magnus Nilsson, Johan Permert, Pontus Blomberg, J-Matthias Löhr
BACKGROUND AND OBJECTIVE: Endoscopic mucosal dissection (ESD) is a treatment option for oesophagus tumours localized to the mucosa enabling en bloc removal of large lesions. The resulting larger mucosal defects have resulted in an increase in the occurrence of post-treatment strictures. Transplantation of autologous cell sheets, cultured from oral mucosa, has been shown to prevent post-ESD strictures. The aim of the study was to assess the efficacy and safety of cell sheet transplantation after oesophageal ESD in a Western patient population where reflux-associated pre-malignant and malignant conditions predominate...
December 2016: United European Gastroenterology Journal
https://www.readbyqxmd.com/read/28407985/histologic-variation-in-high-grade-oral-epithelial-dysplasia-when-associated-with-high-risk-human-papillomavirus
#9
Sujita Khanal, Patrick J Trainor, Maryam Zahin, Shin-Je Ghim, Joongho Joh, Shesh N Rai, Alfred Bennett Jenson, Brian S Shumway
OBJECTIVES: Reported cytologic alterations associated with high-risk human papillomavirus (HR-HPV) in oral epithelial dysplasia (HPV-OED) need further characterization. STUDY DESIGN: Archival cases of high-grade oral epithelial dysplasia (hgOED) (N = 38) were assigned a cytologic score (CS) based on the average number of mitotic, karyorrhectic, and apoptotic cells per high-power field. Three groups were then generated on the basis of increasing CS: Focal (group 1, N = 14), Intermediate (group 2, N = 12), and Diffuse (group 3, N = 12)...
May 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28404012/a-non-endoscopic-device-to-sample-the-oesophageal-microbiota-a-case-control-study
#10
Daffolyn R Fels Elliott, Alan W Walker, Maria O'Donovan, Julian Parkhill, Rebecca C Fitzgerald
BACKGROUND: The strongest risk factor for oesophageal adenocarcinoma is reflux disease, and the rising incidence of this coincides with the eradication of Helicobacter pylori, both of which might alter the oesophageal microbiota. We aimed to profile the microbiota at different stages of Barrett's carcinogenesis and investigate the Cytosponge as a minimally invasive tool for sampling the oesophageal microbiota. METHODS: In this case-control study, 16S rRNA gene amplicon sequencing was done on 210 oesophageal samples from 86 patients representing the Barrett's oesophagus progression sequence (normal squamous controls [n=20], non-dysplastic [n=24] and dysplastic Barrett's oesophagus [n=23], and oesophageal adenocarcinoma [n=19]), relevant negative controls, and replicates on the Illumina MiSeq platform...
January 2017: Lancet. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28397948/retrospective-analysis-of-biopsied-oral-and-maxillofacial-lesions-in-south-western-saudi-arabia
#11
Sanaa M Saleh, Ali M Idris, Nandimandalam V Vani, Faisal M Tubaigy, Fahd A Alharbi, Abubakr A Sharwani, Nabil T Mikhail, Saman Warnakulasuriya
To report the prevalence and types of biopsied oral and maxillofacial lesions (OMLs) in South-Western (Jazan Province) region, , Kingdom of Saudi Arabia (KSA). Methods: This retrospective study was based on the retrieval of clinicopathological data for a period of 6 years between January 2009 and December 2014. These  data were obtained between October 2014 and June 2015 from the histopathology records of King Fahad Central Hospital, Jazan, KSA, which is the only referral center for biopsy services. Results: Out of the 32149 biopsies received, 714 (2...
April 2017: Saudi Medical Journal
https://www.readbyqxmd.com/read/28390748/effectiveness-of-radiotherapy-ozone-on-tumoral-tissue-and-survival-in-tongue-cancer-rat-model
#12
Remzi Dogan, Aysenur Meric Hafız, Huriye Senay Kiziltan, Alper Yenigun, Nur Buyukpinarbaslili, Ali Hikmet Eris, Orhan Ozturan
OBJECTIVE: The objective of this study is to examine therapeutic effect of the combination of radiotherapy and ozone which features increasing of the destruction of cancer cells by increasing oxygen level of the body on advanced tongue cancer induced in rats. METHODS: A total of 36 female rats were included in this study as 4 groups. Group 1 (Cancer, n=8): 4NQO. Group 2 (Cancer+Radiotherapy, n=10): 4NQO+Radiotherapy. Group 3 (Cancer+Ozone+Radiotherapy, n=10): 4NQO+Ozone+Radiotherapy...
April 5, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28390133/histopathological-characterization-of-the-oral-lichenoid-disease-subtypes-and-the-relation-with-the-clinical-data
#13
J Alberdi-Navarro, X Marichalar-Mendia, M-J Lartitegui-Sebastián, M-L Gainza-Cirauqui, M-A Echebarria-Goikouria, J-M Aguirre-Urizar
BACKGROUND: To analyze the histopathological characteristics of samples with a diagnosis of oral lichenoid disease (OLD) and their link with the location and the type of clinical lesion, and the clinicopathological subtypes. MATERIAL AND METHODS: Retrospective study on 85 consecutive patients diagnosed with OLD (58 women and 27 men, mean age of 57.7 years). Clinical and histopathological characterization of each case (modified WHO criteria). Collection of the clinical and histopathological data of the lesions...
April 8, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28381734/implant-supported-oral-rehabilitation-in-child-with-ectodermal-dysplasia-4-year-follow-up
#14
Thaisa Cezária Triches, Marcos Ximenes, João Gustavo Oliveira de Souza, Armando Rodrigues Lopes Pereira Neto, Antônio Carlos Cardoso, Michele Bolan
Ectodermal dysplasia (ED) is an anomaly determined by genetic factors that alter ectodermal structures such as skin, hair, nails, glands, and teeth. Children affected by this condition require extensive, comprehensive, and multidisciplinary treatment. An 8-year-old female patient visited the Dentistry Clinic of the Federal University of Santa Catarina with the chief complaint of multiple missing teeth. The mother reported that the patient had ED. Clinical and radiographic examination revealed the congenital absence of several primary and permanent teeth and tooth germs...
2017: Bulletin of Tokyo Dental College
https://www.readbyqxmd.com/read/28381191/expression-and-associations-of-traf1-bmi-1-aldh1-and-lin28b-in-oral-squamous-cell-carcinoma
#15
Tian-Fu Wu, Yi-Cun Li, Si-Rui Ma, Bing-Liu, Wen-Feng Zhang, Zhi-Jun Sun
Tumor necrosis factor receptor-associated factor 1, an adaptor protein of tumor necrosis factor 2, is involved in classical nuclear factor (NF)-κB activation and lymphocyte recruitment. However, less is known about the expression and association of tumor necrosis factor receptor-associated factor 1 with cancer stem cell markers in oral squamous cell carcinoma. This study aimed to investigate the expression of tumor necrosis factor receptor-associated factor 1 and stem cell characteristic markers (lin28 homolog B, B cell-specific Moloney murine leukemia virus integration site 1, and aldehyde dehydrogenase 1) in oral squamous cell carcinoma and analyze their relations...
April 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28367031/surgical-management-of-chronic-hyperplastic-candidiasis-refractory-to-systemic-antifungal-treatment
#16
Neha Shah, Jay Gopal Ray, Sanchita Kundu, Divesh Sardana
Chronic hyperplastic candidiasis (CHC), earlier known as candidal leukoplakia, is a variant of oral candidiasis that classically presents as a white patch on the commissures of the oral mucosa and it is mostly caused by Candida albicans. Clinically, the lesions are usually asymptomatic and regress after appropriate antifungal therapy and correction of the underlying cause. If the lesions are untreated, a small portion may develop dysplasia and later progress into carcinoma. The purpose of this article is to report a case of CHC in a 57-year-old male patient with a significant smoking habit, who presented with a thick, nonscrapable, brownish-white coating on the dorsum of the tongue for 9 years...
April 2017: Journal of Laboratory Physicians
https://www.readbyqxmd.com/read/28346501/a-tissue-specific-role-for-intraflagellar-transport-genes-during-craniofacial-development
#17
Elizabeth N Schock, Jaime N Struve, Ching-Fang Chang, Trevor J Williams, John Snedeker, Aria C Attia, Rolf W Stottmann, Samantha A Brugmann
Primary cilia are nearly ubiquitous, cellular projections that function to transduce molecular signals during development. Loss of functional primary cilia has a particularly profound effect on the developing craniofacial complex, causing several anomalies including craniosynostosis, micrognathia, midfacial dysplasia, cleft lip/palate and oral/dental defects. Development of the craniofacial complex is an intricate process that requires interactions between several different tissues including neural crest cells, neuroectoderm and surface ectoderm...
2017: PloS One
https://www.readbyqxmd.com/read/28330577/-custom-made-implant-for-complex-facial-reconstruction-a-case-of-total-replacement-of-temporo-mandibular-joint-zygomatic-arch-and-malar-bone
#18
D Guillier, V Moris, L-A See, M Girodon, B-L Wajszczak, N Zwetyenga
INTRODUCTION: Total prosthetic replacement of the temporo-mandibular joint (TMJ) has become a common procedure, but it is usually limited to the TMJ itself. We report about one case of complex prosthetic joint reconstruction extending to the neighbouring bony structures. CASE: A 57-year-old patient, operated several times for a cranio-facial fibrous dysplasia, presented with a recurring TMJ ankylosis and a complexe latero-facial bone loss on the right side. We performed a reconstruction procedure including the TMJ, the zygomatic arch and the malar bone by mean of custom made composite prosthesis (chrome-cobalt-molybdenum-titanium and polyethylene)...
February 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28319210/oculo-dento-digital-dysplasia-oddd-due-to-a-gja1-mutation-report-of-a-case-with-emphasis-on-dental-manifestations
#19
Christina Hadjichristou, Violetta Christophidou-Anastasiadou, Athina Bakopoulou, George A Tanteles, Maria A Loizidou, Kyriacos Kyriacou, Andreas Hadjisavvas, Konstantinos Michalakis, Argyris Pissiotis, Petros Koidis
Oculo-dento-digital dysplasia (ODDD) is a congenital disorder manifesting with multiple phenotypic abnormalities involving the face, eyes, teeth, and limbs in addition to neurologic symptomatology. This report aims to present a female patient with ODDD who was referred due to extensive oral restorative needs. The presence of hypoplastic enamel triggered further evaluation. Characteristic facies with hypoplastic alae nasi and syndactyly offered greater insight into the phenotype of the syndrome. Clinical suspicion was confirmed by genetic sequencing revealing heterozygous mutation in GJA1...
March 20, 2017: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/28316764/the-association-between-oral-hygiene-and-gastric-pathology-in-patients-with-dyspepsia-a-cross-sectional-study-in-southeast-iran
#20
Leili Zahedi, Elham Jafari, Molook Torabi Parizi, Sara Shafieipour, Mehdi Hayat Bakhsh Abbasi, Sodaif Darvish Moghadam, Mohammad Javad Zahedi
BACKGROUND Many studies have reported an association between periodontal infections and some systemic diseases such as respiratory and cardiovascular diseases. Some studies found a direct association between chronic gastritis caused by Helicobacter pylori (HP) infection and poor periodontal health. METHODS In a cross-sectional study from November 2014 to December 2015 in Kerman, the largest province in southeast Iran, patients with dyspepsia who were candidate for diagnostic upper gastrointestinal (GI) endoscopy were included in our study...
January 2017: Middle East Journal of Digestive Diseases
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