Search results for "Diseases."
showing 10 items of 20181 documents
Recent advances in chalcogenide holey fibres
2010
oral
Recent advances in chalcogenide holey fibres
2009
oral
Elaboration by casting method of low losses chalcogenide microstructured fibers for near and mid infrared applications
2010
oral session C " Preparation and Property ", oral [TuA-16]; International audience
A large ameloblastic fibro-odontoma of the right mandible
2007
The ameloblastic fibro-odontoma is a rare mixed odontogenic tumor. It occurs predominantly in children and young adults with no sex predilection and locates most often in the posterior segment of the mandible. A painless swelling is the most common clinical sign. Radiologically, ameloblastic fibro-odontoma shows a circumscribed radiolucency, which contains radio-opaque foci of various sizes and shapes. Histological examination reveals a fibrous soft tissue, islands of odontogenic epithelium and a disordered mixture of dental tissues. The tumor produces enamel or enamel matrix, dentin and cementum. The treatment of ameloblastic fibro-odontomas usually consists of enucleation or surgical cure…
Race in Young Adult Speculative Fiction by Gilbert-Hickey and Gren-Barteet - books in review
2022
Race in Young Adult Speculative Fiction by Gilbert-Hickey and Gren-Barteet - books in review
Oral manifestations of Cowden?s disease : presentation of a clinical case
2006
Cowden?s disease, or multiple hamartoma syndrome, is an autosomal dominant genodermatosis, characterized by the presence of multiple cutaneous hamartomas, oral fibromas and benign acral keratosis. It affects multiple organs (breast, thyroids, stomach, colon), with the strong possibility of malignant neoplasia developing in these organs. We present a case of this rare syndrome, highlighting the presentation of some clinical characteristics that, in suspected cases, can help to establish an early diagnosis of this disease, this being of great importance given the high frequency of tumors in people with this clinical picture.
Evolución del germen dental trasplantado heterotópicamente en la dermis: un estudio histológico en la rata
2004
En este estudio hemos analizado la potencialidad de desarrollo del germen dental en fase de corona. Para ello, los gérmenes dentales de rata recién nacida fueron trasplantados en las bolsas dérmicas de la oreja de ratas isogénicas. Siete y catorce días después del trasplante, se desarrollaron las estructuras morfológicas dentales típicas, con ameloblastos y odontoblastos bien diferenciados. Ulteriormente, los procesos de reacción inflamatoria del tejido huésped con infiltración celular abocaron a la desaparición de los tejidos dentales. Desde el primer momento de nuestro análisis, los trasplantes desarrollaron una dentina anómala u osteoide cuyo tamaño fue paulatinamente incrementando con e…
Gastroesophageal reflux diagnosed by occlusal splint tintion
2006
The gastroesophageal reflux (GER) disease is a very frequent digestive disorder, mainly characterised by the reflux of the gastric acidic content to the esophage in abnormal quantities. There are different situations that favour this situation but almost in all of them rely an incompetence of the esophagic sphincter. The clinical consequences are many, including oral manifestations. Among all of them the most frequent is the esophagitis followed by symptoms at the pharynx or larynx and finally, the oral cavity. At this level fundamentally we will find enamel and oral mucosa erosions. We report the case of a patient who was indirectly diagnosed of her esophague disease by the observation of …
Expression of ?-catenin in carcinoma in pleomorphic adenoma, pleomorphic adenoma and normal salivary gland : An immunohistochemical study
2006
Objetives. Pleomorphic adenomas are the most frequent type of epithelial salivary gland neoplasms, and their malignant counterpart, the carcinoma in pleomorphic adenomas, is much less common. ?-catenin is a cell adhesion molecule associated with the invasion and metastasis of carcinomas of the head and neck, esophagus. The objective of this study was to detect the expression of ?-catenin in pleomorphic adenomas, carcinomas in pleomorphic adenomas and normal salivary glands to discuss its role in the development of these two lesions. Study Design. The expression of ?-catenin (BD Transduction Laboratories) was analyzed by immunohistochemistry in formalin-fixed, paraffin embedded specimens by …
Improved Reactivity and Derivatization of Cellulose after Pre-Hydrolysis with Commercial Enzymes
2019
Reactivity is an important parameter when considering the chemical modification or dissolution of cellulose. Different pretreatment methods affect cellulose reactivity by decreasing its degree of polymerization (DP) and crystallinity. In this study, the molar mass of cellulose was decreased via enzymatic pretreatment. Three commercial endoglucanase-rich products were tested. The target was to reduce the viscosity of the pulp to below 200 mL/g and, thus, increase the reactivity of the cellulose. For comparison, cellulose was also pretreated with ozone, and the effects of each pretreatment method on crystallinity and monosaccharide composition of the resulting pulps were investigated. Both en…