Search results for " Saliva."
showing 10 items of 123 documents
Comparison of growth, acidification and productivity of pure and mixed cultures of Streptococcus salivarius subsp. thermophilus 404 and Lactobacillus…
1994
International audience; Pure and mixed controlled-pH batch cultures of Streptococcus salivarius subsp. thermophilus 404 and Lactobacillus delbrueckii subsp. bulgaricus 398 have been conducted. The characteristics of growth and acidification and the productivity of the cultures were compared. During the mixed cultures, the growth characteristics revealed a pronounced stimulation of S. thermophilus whereas L. bulgaricus metabolism was not significantly improved. The final total population was 1.4 to 4.9 higher than in pure cultures. The acidification characteristics were not enhanced by the mixed culture conditions. The productivity of mixed cultures was 1.7 to 2.4 times higher as compared to…
Fibromialgia: relación entre el estrés crónico, depresión, procesos inflamatorios y dolor.
2015
Por el término Fibromialgia (FM), asumimos un trastorno de etiología no conocida hasta el momento, aparentemente crónico, que se caracteriza por dolor muscular y articular generalizado incluyendo hipersensibilidad a numerosos estímulos como la presión, el frio o el calor. En la actualidad, la propia definición del cuadro, sus criterios diagnósticos y su etiopatogenia siguen siendo causa de debate. En los últimos años han ido apareciendo en la literatura numerosas hipótesis sobre el proceso de desarrollo de la FM que, aunque siguen aparentemente un patrón opuesto no se puede descartar que sean complementarias y se retroalimenten. En nuestro estudio nos hemos centrado en las hipótesis basadas…
Efecto de la radioterapia en glándulas salivales accesorias.
2005
El objetivo de este trabajo es estudiar las alteraciones que las radiacionesionizantes producen sobre las glándulas salivales accesorias labiales. Ennuestro estudio se seleccionaron sujetos diagnosticados de un tumor malignode cabeza y cuello que iban a recibir radioterapia dentro de su tratamiento,incluyendo los labios dentro del campo de irradiación. Se evaluó la secreciónsalival y las alteraciones morfológicas de las glándulas en el momento deldiagnóstico y a los tres meses de finalizar el tratamiento radioterápico.Se incluyeron en el estudio 17 sujetos. Antes de la radioterapia lasecreción salival media fue de 0,21 ml/m; en cuatro de los sujetos existía atrofiaglandular leve antes de di…
Adenoma de células basales de glándula parótida: Caso clínico y revisión de la literatura
2006
El adenoma de células basales de las glándulas salivares es un tipo de adenoma monomorfo de aparición infrecuente. La localización más habitual es la superficie de la glándula parótida. Suele debutar clínicamente como una masa firme y desplazable de crecimiento lento. Histológicamente se observan células isomórficas formando nidos y trabéculas interanastomosadas, con una membrana basal prominente, separadas por un estroma laxo e hialino y ausencia de estroma mixoide o condroide. A diferencia del adenoma pleomorfo, tiende a la multicentricidad y su tasa de recurrencia después de la extirpación quirúrgica es alta. Debido a sus implicaciones pronósticas, el diagnóstico diferencial con el adeno…
Myoepithelial cells are the main component in pleomorphic adenomas?
2007
Objective: The aim of this study was to quantify by immunohistochemistry the number of myoepithelial cells (MyECs) in pleomorphic adenomas (PAs). Material and methods: We retrieved the paraffin cubes of 27 PAs, new slides were done and they were stained with anti-S100 protein antibody. The amount of S-100 protein positive cells was quantified, their morphology was recorded and comparison among MyEC number with age, gender and involved gland were also done. Results: With S-100 protein, MyECs in normal salivary gland tissue were seen surrounding the ductual structures only. In the analysed PAs a mean of 27.4% of the neoplastic cells were positive to the antibody. With the exception of one PA,…
Determination of salivary glucose in healthy adults
2009
Podeu consultar la versió en castellà a: http://hdl.handle.net/2445/54584
Kinetics of torque teno virus DNA load in saliva and plasma following allogeneic hematopoietic stem cell transplantation
2018
Plasma torque teno virus (TTV) DNA load directly correlates with the degree of T-cell immune reconstitution early after allogeneic hematopoietic stem cell transplantation (allo-HSCT). Here, the kinetics of oral TTV DNA shedding was examined to assess whether quantitation of TTV DNA load in saliva may either replace or complement that in plasma for predicting lymphocyte (ALC) reconstitution after engraftment. This prospective observational study enrolled 38 nonconsecutive allo-HSCT recipients. Saliva and plasma specimens were collected at baseline (pretransplant) and at around days +30, +50, and +90 after allo-HSCT. TTV DNA was quantitated in both specimen types by real-time PCR. ALCs were m…
Sialographic findings in Wharton duct evagination
2009
Ductal evagination is a rare condition affecting the Wharton duct. The aim of this study was to establish the incidence, imaging features and clinical significance of ductal evagination in patients undergoing submandibular gland sialography. The sialographic findings and reports of 322 patients undergoing submandibular gland sialography during the period 1998-2007 were retrospectively reviewed. Ductal evagination was identified on sialograms as a unique diverticulum, filled with contrast medium, of the Wharton duct, with a narrow neck and a blind end. A ductal evagination was found in 5/322 patients with swelling and pain in the submandibular gland. It was always located in the middle tract…
Tumors of the salivary gland in Mexicans. A retrospective study of 360 cases
2011
Objective: To establish distribution frequency and demographic characteristics of salivary gland tumours (SGT) i6n order to identify possible risk profiles. Design of study: The present report constitutes an eight year retrospective study (January 2000-August 2007). The archives of the Clinical and Experimental Pathology Laboratory (Graduate and Research Division, Dental School, National Autonomous University of Mexico) as well as archives of the Surgical Pathology Service (General Hospital, Mexico City) were subject to revision in order to select all cases where SGT tumour diagnoses were emitted. Age and gender of patients as well as SGT topography were obtained from medical records. Selec…
Immunohistochemical expression of estrogens and progesterone receptors in carcinoma ex pleomorphic adenoma-undifferentiated and adenocarcinoma types.
2009
Cancer of the salivary gland is one of the common cancers in the head and the neck regions. This type of cancer develops in the minor and the major salivary glands, and it sometimes metastasizes to other organs, particularly the lung. Morphologic mimicry and similarity in the expression of steroid hormone receptors between salivary gland tumors and breast tumors are well-known phenomena and are occasionally debated in the field of surgical pathology. The expression of sex hormone receptors in some tumors suggests a role for these receptors in tumor pathogenesis and therapy. Previous studies of the expression of estrogens and progesterone receptors in salivary gland tumors have reported conf…