125 research outputs found
Biomarkers in Laryngeal Squamous Cell Carcinoma: The Literature Review
Laryngeal squamous cell carcinoma (LSCC) is the second most common cancer among head and neck cancers. Despite a lower incidence of laryngeal carcinoma, new diagnostic techniques, and more targeted therapies, the overall survival has not changed significantly in the last decades, leading to a negative prognosis in advanced stages. Recently, several studies have focused on the identification of biomarkers that may play a critical role in the pathogenesis of LSCC. Reviewing the literature on the main databases, this study aims to investigate the role of some biomarkers in LSCC that are correlated with oxidative stress and inflammation: heat shock proteins; metallothioneins; nuclear factor erythroid 2-related factor 2; heme oxygenase; cyclooxygenase-2; and micro ribonucleic acids. This review shows that biomarker expression depends on the type, grade of differentiation, stage, and site of carcinoma. In addition, the role of these biomarkers in LSCC is still little-known and little-studied. However, the study of biomarker expression and the detection of a possible correlation with patientsâ epidemiological, clinicopathological, and therapeutics data may lead to better awareness and knowledge of the tumor, to the identification of the best therapeutic strategy, and the most proper follow-up protocol tailored for each patient. In conclusion, the achievement of these goals may improve the prognosis of LSCC patients
Modélisation tridimensionnelle de l'os hyoïde : application à la définition de morphotypes en anthropologie biologique et application pratique à la pathologie cancéreuse
Objectifs: rĂ©aliser une Ă©tude anatomique et anthropologique de lâos hyoĂŻde en utilisant les moyens modernes de reconstruction 3D et discuter les applications cliniques potentielles notamment en cancĂ©rologie. MĂ©thode : LâĂ©tude a Ă©tĂ© rĂ©alisĂ©e Ă partir dâune analyse de 180 os hyoĂŻdes dont 88 ont Ă©tĂ© prĂ©levĂ©s sur cadavres (groupe 1) et 92 analysĂ©s Ă partir dâexamens tomodensitomĂ©triques pratiquĂ©s sur des sujets vivants (groupe 2). Une analyse mĂ©trique ainsi quâune analyse de morphomĂ©trie gĂ©omĂ©trique ont Ă©tĂ© rĂ©alisĂ©es pour chaque groupe. Les 2 groupes ont ensuite Ă©tĂ© comparĂ©s afin dâĂ©valuer lâinfluence des muscles sur la morphologie de lâos hyoĂŻde. Dans un second temps, nous avons appliquĂ© cette mĂ©thodologie Ă une sĂ©rie de 24 patients opĂ©rĂ©s de laryngectomie partielle. RĂ©sultats : Nous avons montrĂ© quâil existait une importante hĂ©tĂ©rogĂ©nĂ©itĂ© morphologique entre les os hyoĂŻdes et que celle-ci Ă©tait Ă©troitement liĂ©e au sexe, Ă la taille et au poids des individus. En effet, la longueur et la largeur de lâos hyoĂŻde Ă©taient significativement plus importantes chez les hommes que chez les femmes (39,08 vs. 32,50 mm, p=0,033 et 42,29 vs. 38,61 mm, p=0,003). Par ailleurs, lâangle formĂ© par les deux grandes cornes (angle alpha) Ă©tait plus large chez les femmes (44,09 vs. 38,78 p=0,007). De plus, la longueur de lâos hyoĂŻde Ă©tait corrĂ©lĂ©e de façon positive avec la taille (coefficient de corrĂ©lation de Pearson r=0,533, p=0,01) et le poids des sujets (r=0,497, p=0,01). Des diffĂ©rences mĂ©triques significatives ont aussi Ă©tĂ© retrouvĂ©es entre les os hyoĂŻdes secs et les os des sujets vivants.Objectives: To perform an anatomical and anthropological study of the hyoid bone using modern 3D reconstruction tools and to discuss potential applications in clinical practice. Methods: The study was conducted on 88 intact hyoid bones taken from cadavers during forensic autopsies (group 1) and on 92 from CT-scan images of living adult subjects (group 2). Three-dimensional reconstructions were created from CT-scan images using Amira 5.3.3Âź software. An anatomical and anthropological study of hyoid bones was carried out using metric and morphologic analysis. A comparison was performed between groups 1 and 2 in order to evaluate the influence of muscle traction on hyoid bone shape. In a second step, this methodology was applied to 24 patients operated on for partial laryngectomy. Results: Characteristics of the hyoid bone were highly heterogeneous and were closely linked with the sex, height and weight of individuals. Length and width were significantly greater in men than in women (39.08 vs. 32.50 mm, p=0.033 and 42.29 vs. 38.61 mm, p=0.003) whereas the angle between the greater horns was larger in females (44.09 vs. 38.78 p=0.007). There was a significant positive correlation between the height (Pearson coefficient correlation r=0.533, p=0.01) and weight (r=0.497, p=0.01) of subjects and the length of the hyoid bone. Significant metric differences were shown between group 1 and group 2. In patients operated on for partial laryngectomy, hyoid bones could be classified into 3 types (A, B and C) according to their morphology. Conclusion: This very reproducible methodology is of importance because it may lead to clinical studies, particularly in head and neck cancer
La tomographie par Ă©mission de positons (intĂ©rĂȘt dans la prise en charge des cancers ORL)
AIX-MARSEILLE2-BU MĂ©d/Odontol. (130552103) / SudocPARIS-BIUM (751062103) / SudocSudocFranceF
Adénocarcinome polymorphe de bas grade : une localisation labiale
Introduction : LâadĂ©nocarcinome polymorphe de bas grade (APBG) est une
tumeur carcinomateuse épithéliale se développant principalement à partir des glandes
salivaires du palais ou des lĂšvres. Observation : Nous rapportons le cas dâun
APBG de la lÚvre supérieure. Discussion : La faible spécificité clinique et
le polymorphisme histologique de lâAPBG rendent son diagnostic difficile Une rĂ©union de
consultation pluridisciplinaire (RCP) du RĂ©seau dâexpertise français sur les cancers ORL
rares (REFCOR et REFCORpath) a permis le diagnostic histologique et la prise en charge
Quality of life in patients with head and neck cancer : impact of prosthetic rehabilitation
International audienc
Présentation d'un prototype de palatographie dynamique pour la mesure de la force d'appui de la langue sur le palais lors du temps buccal de la déglutition
International audienceThe position of the tongue and the forces which it exerts on its dental and osseous environment would be responsible for a certain degree of dysmorphosis. However there is not tool usable in clinic which makes it possible to check the reality of the forces exerted by the tongue on the palate. We developed a prototype made up of an artificial palate in rigid resin including of pressure sensors and we report the feasibility of a study on healthy subjects. The sensors allow indeed of following dyna - mic visible differences between various "maneuvers" during the swallowing of a water mouthful. The tool will be now adapted for a clinical study comparing of the subjects with and without lingual dysfunctionLa position de la langue et les forces qu'elle exerce sur son environnement dentaire et osseux seraient responsables d'un certain degré de dysmorphose. Il n'existe cependant pas d'outil utilisable en clinique qui permette de vérifier la réalité des forces exercées par la langue sur le palais. Nous avons mis au point un prototype constitué d'un palais artificiel en résine rigide incluant des capteurs de pression et nous rapportons l'étude de faisabilité sur des sujets sains. Les capteurs permet - tent effectivement de monitorer des différences visibles de fonc - tionnement entre différentes «manoeuvres» lors de la déglu ti tion d'une gorgée d'eau. L'outil sera maintenant adapté pour une étude clinique comparant des sujets avec et sans dys fonction lingual
In Reference to Anosmia and Ageusia: Common Findings in COVIDâ19 Patients
International audienc
In Reference to Anosmia and Ageusia: Common Findings in COVIDâ19 Patients
International audienc
PrĂ©diction du dĂ©ficit dâintelligibilitĂ© chez des patients traitĂ©s pour un cancer de la cavitĂ© buccale ou de lâoropharynx
International audienc
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