Asociación entre Trastornos Óseos Degenerativos y Acumulación de Líquido en los Recesos de la Articulación Temporomandibular

ResumenEl Objetivo del presente estudio fue determinar la asociación entre presencia de líquido intra-articular y alteraciones degenerativas en las ATM de pacientes adultos con diagnóstico clínico de Trastornos Temporomandibulares, por medio de diagnóstico imagenológico, antes de iniciar su tratamiento.Material y MétodoSe reclutaron 135 pacientes consecutivos (promedio de edad = 33,3 años) que clínicamente presentan disfunciones de las ATM y que fueron examinados por medio de Resonancia Magnética (RM) y Tomografía Computada (TC). Los criterios de exclusión fueron: pacientes menores de 16 años, pacientes mayores de 65 años, pacientes portadores de prótesis dentarias removibles, con enfermedades sistémicas como gota, Osteoartrosis sistémica, hiperlaxitud ligamentaria, malformaciones anatómicas, enfermedades quísticas, tumorales, historia de trauma o cirugía de las ATM. Todos los pacientes fueron examinados utilizando el resonador magnético [Phillips Intera 1,5 T, bobina Sense Flex S Dual] en las secuencias; sagital DP-T2-Spir, coronal DP y dinámico ECHO gradiente y también fueron examinados por medio de Tomografía Computada (TC), con cortes de volúmenes-axiales y volúmenes-coronales de 625um de espesor [BrightSpeed®ELITE, General Electric, Milwaukee, USA)] tanto a boca abierta como cerrada, bajo los siguientes parámetros: FOV: 16.0cms, Algoritmo Hueso, Filtro Edge A2 y Matriz 512x512 pxs]. Los estudios imagenológicos de las ATMs formaron los siguientes ocho grupos: Grupo A: Ausencia de líquido (L) en ATM Derecha con Alteración Degenerativa (AD); Grupo B: Presencia de Líquido en ATM Derecha con AD; Grupo C: Ausencia de Líquido en ATM Izquierda con AD; Grupo D: Presencia de L en ATM Izquierda con AD; Grupo E: Ausencia de AD y Ausencia de L en ATM Derecha; Grupo F: Ausencia de AD y Presencia de L en ATM Derecha; Grupo G: Ausencia de L en ATM Izquierda; Grupo H: Presencia de L y ausencia de AD en ATM Izquierda. Los datos fueron analizados estadísticamente con la prueba Chi2 (Systat v12.0).ResultadoGrupo A: n= 61; Grupo B: n= 64; Grupo C: n= 54; Grupo D: n= 53; Grupo E; n=12; Grupo F; n=13; Grupo G: n=8 y Grupo H: n=5.ConclusiónNo existe asociación entre la presencia de líquido intra-articular y Alteraciones Degenerativas de las superficies articulares en la ATM.AbstractThe Objective of the present study was to determine the association between articular space effusion and degenerative bone disease in adult TMJ with internal derangement, previous any treatment, by images diagnosis.Materials y MethodsWere recruited 135 consecutives patients (X=33.3 years) that presented TMJ dysfunction were examined using Magnetic Resonance (MRI) [Phillips Intera 1,5 T, Sense Flex S Dual Coil] in sequences; sagital DP-T2-Spir, coronal DP and dynamic ECHO gradient and using Computed Tomography (TC) by axial-volumes slices and coronal-volumes slices of 625um of width [BrightSpeed®ELITE, General Electric, Milwaukee, USA], with the patient in open mouth and closed mouth under the next parameters: FOV: 16.0cms, Bone Algorithm, Edge Filter A2 and Matrix 512x512 pxs. The exclusion criteria was: patients below 16 years and above 65 years of age, patients using removable dental prosthetics, patients that presented systemic disease such as Gout Disease, Osteoarthrosis and hipermobility, anatomic structural alterations, Quistic or Tumor disease and TMJ surgery. The TMJ images studies formed the following eight groups: Group A: Absence of effusion (L) in right TMJ with Degenerative Disease (AD); Group B: Presence of L in right TMJ with AD; Grupo C: Absence of L in left TMJ with AD; Group D: Presence of L in left TMJ with AD; Group E: Absence of AD and absence of L in right TMJ; Group F: Absence of AD and presence of L in right TMJ; Group G: Absence of L in left TMJ; Group H: Presence of L and absence of AD in left TMJ. Data were statistically analyzed by Chi2 (Systat v12.0).ResultsGroup A: n= 61; Group B: n= 64; Group C: n= 54; Group D: n= 53; Group E; n=12; Group F; n=13; Group G: n=8 y Group H: n=5.ConclusionNo association was found between Degenerative Bone Disease and Temporo mandibular Joint Articular Space Effusion in TMJ

Сomparison of Exams in Terms of Benefits for the Future Engineer

This article describes advantages and disadventages of international exams for students. to motivate students to pass the English exam as soon as possible. Based on our survey, many students have never even heard about language exams and benefits it gives

MANIFESTACIONES ÓSEAS DE LAS ENFERMEDADES DEGENERATIVAS DE LA ARTICULACIÓN TEMPOROMANDIBULAR DISFUNCIONADA. ESTUDIO TOMOGRÁFICO

El objetivo del presente estudio retrospectivo fue determinar el tipo y frecuencia de las alteraciones óseas degenerativas en la Articulaciones Temporo-Mandibulares (ATM) de pacientes con diagnóstico clínico de Trastorno Temporomandibular (TTM) por medio de Tomografía Computarizada (TAC)

Fabrication of electrospun scaffolds incorporating an Amazonian therapeutic oil from the copaifera species for wound care applications

Electrospinning provides an efficient and versatile method to produce novel biomaterials from a range of natural and synthetic polymers, which show excellent biocompatibility due to the very high surface area-to-volume ratio. In addition, the incorporation of bioactive compounds into biodegradable polymers, such as poly(lactic-co-glycolic acid) (PLGA) allows the fabrication of drug releasing bioactive scaffolds for potential use in novel wound care applications. Native to the tropical region of Latin America, Copaiba oil is extracted from material from the Copaifera species. The oil is a FDA approved compound known for its wound healing, anti-inflammatory, analgesics, antifungal and antimicrobial functions. In this study, microfiber non-woven scaffolds were fabricated via electrospinning solutions of PLGA containing copaiba oil. Tests of cell growth with lung fibroblasts reported a strong affinity of the fibroblasts and the biomaterial.43217220Blackwood, K.A., McKean, R., Canton, I., (2008) Biomaterials, 29, p. 3091Powell, H.M., Supp, D.M., Boyce, S.T., (2008) Biomaterials, 29, p. 834Pontiggia, L., Klar, A., Bottcher-Haberzeth, S., Biedermann, T., Meuli, M., Reichmann, E., (2013) Pediatr Surg. Int, 29, p. 249Sander, E.A., Alb, A.M., Nauman, E.A., Reed, W.F., Dee, K.C., (2004) Wiley InterScienceMacneil, S., (2008) Materials Today, 11. , ISSN: 13697021Kobayashi, H., Shiraki, K., Ikada, Y., (1992) J. Biomed. Mater. Res, 26, p. 1463Ali, S.A.M., Zhong, S.P., Doherty, P.J., Williams, D.F., (1993) Poly(caprolactone), 14, p. 648Chen, D.W., Hsu, Y.H., Liao, J.Y., Liu Sj, S.J., Chen, J.K., Ueng, S.W., (2012) Int. J. Pharm, 430 (335), p. 1Barauna, G., Coraca-Huber, D.C., Duek, E.A.R., (2013) Materials Research, 16, p. 221Khademhosseini, A., Vacanti, J., Langer, R., (2009) Sci. Am. Mag, 300, p. 64Nichol, J.W., Khademhosseini, A., (2009) Soft Matter, 5, p. 1312Berthiaume, F., Maguire, T.J., Yarmush, M.L., (2011) Ann. Rev. Chem. Biomol. Eng, 2, p. 403Ji, W., Sun, Y., Yang, F., Beucken, J.J.J.P., Fan, M., Chen, Z., (2011) Expert Review. Springerlink, p. 1261Sertie, A.C.B.J.A.A., Freitas, P.C.D., Zanini, A.C., (1988) Journal of Ethnopharmacology, 22, p. 101Fernandes, R.M., Pereira, N.A., Paulo, L.G., (1992) Revista Brasileira de Farmácia, 73, p. 53Paiva, L.A.F., De Alencar Cunha, K.M., Santos, F.A., Gramosa, N.V., Silveira, E.R., Rao, V.S.N., Phytotherapy research? (2002) Phytother. Res, 16, p. 737Fernandes, R.M., Pe, N.A., Copalic acid analgesic activity in mice (1989) Abstracts Simpósio Brasil-China de Química e Farmacologia de Produtos NaturaisCarvalho, J.C.T., Cascon, V., Possebon, L.S., Morimoto, M.S.S., Cardoso, L.G.V., Kaplan, M.A.C., Gilbert, B., Phytotherapy Research (2005) Phytother. Res, 19, p. 946Nogueira-Neto, J., Lindoso, M.J.S., Coelho, L.F., Carvalho, R.A.F., Rodrigues, T.G.P.M., Araújo, A.G.P., Girão, M.J.B.C., Schor, E., (2011) Acta Cir. Bras, 26, p. 20Cascon, V., Gilbert, B., (2000) Phytochemistry, 55, p. 773Tincusi, B.M., Jiménez, I.A., Bazzocchi, I.L., Moujir, L.M., Mamani, Z.A., Barroso, J.P., Ravelo, A.G., Hernández, B.V., (2002) Planta Med, 68, p. 808Oliveira, D.F., Pereira, A.C., Figueiredo, H.C.P., Carvalho, D.A., Silva, G., Nunes, A.S., Alves, D.S., Carvalho, H.W.P., (2007) Fitoterapia, 78, p. 142Leandro, L.M., Vargas, F.S., Barbosa, P.C.S., Neves, J.K.O., Silva, J.A., Veiga-Junior, V.F., (2012) Molecules, 17, p. 3866Brito, N.M.B., Simões, M.J., Pessoa, A.F., (1998) Rev. Para Med, 12, p. 28Vieira, R.C., Bombardiere, E., Oliveira, J.J., Lino-Júnior, R.S., Brito, L.A.B., Junqueira-Kipnis, A.P., (2008) Pesq. Vet. Bras, 28, p. 358Masson-Meyers, D.S., Enwemeka, C.S., Bumah, V.V., Andrade, T.A.M., Cashin, S.E., Frade, M.A.C., (2013) International Journal of Applied Microbiology Science, 2, p. 9Millas, A.L.G., Silveira, J.V.W., Bittencourt, E., InventorsINOVA/UNICAMP assignee (2012) Adhesion and proliferation of fibroblasts on nano and microfibers embedded with natural oils of the Amazon, , BRAZIL PatentXinhua, Z., Shaofeng, R., Kwang-Sok, K., Dufei, F., Benjamin, S.H., Benjamin, C., (2003) Biomacromolecules, 4, p. 416Kumbar, S.G., Nukavarapu, S.P., James, R., Nair, L.S., Laurencin, C.T., (2008) Biomaterials, 29, p. 4100Mustoe, T.A., Pierce, G.F., Thoason, A., Gramates, P., Sporn, M.B., Deuel, T.F., (1987) Science, 237, p. 133

Platinum blue staining of cells grown in electrospun scaffolds

Fibroblast cells grown in electrospun polymer scaffolds were stained with platinum blue, a heavy metal stain, and imaged using scanning electron microscopy. Good contrast on the cells was achieved compared with samples that were gold sputter coated. The cell morphology could be clearly observed, and the cells could be distinguished from the scaffold fibers. Here we optimized the required concentration of platinum blue for imaging cells grown in scaffolds and show that a higher concentration causes platinum aggregation. Overall, platinum blue is a useful stain for imaging cells because of its enhanced contrast using scanning electron microscopy (SEM). In the future it would be useful to investigate cell growth and morphology using three-dimensional imaging methods

Power over past and future: Abbess Emma and the nunnery of Sant Joan de les Abadesses

Abbess Emma of Sant Joan de les Abadesses, post-Visigothic Catalonia's first known nunnery, left a sufficient documentary record to permit in-depth study of her method of rule, which included taking her comital brothers to court for her rights. Closer study of these acts suggests that her rule was part of a family strategy, whose change by a younger generation was to undo many of her efforts to secure Sant Joan's independence. Her rule included not only aggressive territorial aggrandizement but the reshaping of the locality's history in a way which has endured until this day