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Search Results: 1 - 10 of 117932 matches for " T Beca "
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AINEs como tratamiento coadyuvante de la enfermedad periodontal
Beca,T; Hernández,G; Bascones,A;
Avances en Periodoncia e Implantología Oral , 2007, DOI: 10.4321/S1699-65852007000300005
Abstract: summary a review about the application of antiinflammatories as an aid for the periodontal treatment is presented. after a brief introduction, we explain the immunological bases of periodontal inflamation and tissue destruction, focusing on arachidonic acid metabolism and the four most important inflammatory mediators now in periodontal tissue resorption: prostaglandin e2 (pge2), prostaglandin f2a(pgf2a), leucotriene b4 (ltb4) and platelet activation factor (paf), and explaining their actions and role in inflammation through matrix metalloproteinase (mmps) and their relation with some other mediators in the inflammatory chain also related with tissue resorption. after, we expound some of the most used drugs for the inhibition of all of these mediators (non-steroid antiinflammatory drugs or nsaids, omega3 fatty acids, tetracyclines and bisfosfonates), explaining their action and the papers wich investigated them and later we have made a compilation of the few studies making clinical measurements to finish establishing some conclusions.
Significado de la vida de un ni o con retardo mental
Mila Razmilic T,Juan Pablo Beca I
Revista chilena de pediatría , 2012,
Abstract:
AINEs como tratamiento coadyuvante de la enfermedad periodontal NSAIDs in the treatment of periodontal disease
T Beca,G Hernández,A Bascones
Avances en Periodoncia e Implantología Oral , 2007,
Abstract: Se presenta una revisión bibliográfica acerca de la aplicación de antiinflamatorios de forma coadyuvante en el tratamiento periodontal. Tras una breve introducción, se establecen las bases inmunológicas de la inflamación y destrucción periodontal, centrándonos en el metabolismo del ácido araquidónico y los cuatro mediadores más implicados actualmente en la destrucción periodontal: prostaglandina E2 (PGE2), prostaglandina F2a (PGF2a), leucotrieno B4 (LTB4) y factor activador de plaquetas (PAF), y estableciendo su mecanismo de acción, su relación con la destrucción periodontal a través de las metaloproteinasas (MMPs) y su relación con algunas interleuquinas de la cascada inflamatoria también relacionadas con la destrucción tisular. Después se expone una relación de los fármacos más empleados en la literatura para la inhibición de todos estos mediadores (Antiinflamatorios no esteroideos o AINEs, ácidos grasos omega3, tetraciclinas y bifosfonatos), explicando su mecanismo de acción y los estudios que los han investigado y posteriormente se ha llevado a cabo una recopilación de los escasos estudios que realizan mediciones clínicas para finalizar estableciendo una serie de conclusiones. SUMMARY A review about the application of antiinflammatories as an aid for the periodontal treatment is presented. After a brief introduction, we explain the immunological bases of periodontal inflamation and tissue destruction, focusing on arachidonic acid metabolism and the four most important inflammatory mediators now in periodontal tissue resorption: prostaglandin E2 (PGE2), prostaglandin F2a(PGF2a), leucotriene B4 (LTB4) and platelet activation factor (PAF), and explaining their actions and role in inflammation through matrix metalloproteinase (MMPs) and their relation with some other mediators in the inflammatory chain also related with tissue resorption. After, we expound some of the most used drugs for the inhibition of all of these mediators (non-steroid antiinflammatory drugs or NSAIDs, omega3 fatty acids, tetracyclines and bisfosfonates), explaining their action and the papers wich investigated them and later we have made a compilation of the few studies making clinical measurements to finish establishing some conclusions.
Plasma rico en plaquetas: Una revisión bibliográfica
Beca,T; Hernández,G; Morante,S; Bascones,A;
Avances en Periodoncia e Implantología Oral , 2007, DOI: 10.4321/S1699-65852007000200005
Abstract: the aim of this work was to make a review about the evolution of the platelet rich plasma (prp) in literature. after an introduction, the main components of the prp are showed, giving more relevance to the growing factors to continue with the obtaining procedure and its aplication in the surgical aspect. later, a review about the regeneration process by means of histological findings is made from the very first moment to the sixth week. in the discussion, it can be observed that there is a great polemic between the found studies about the usefulness of the prp in osseous regeneration, and then some potencial riks about the utilization of the prp are put forward to finish with a brief review of comparative studies between different obtaining and activation methods. finally, some conclusions are established and the bibliography searched is presented.
Bárbara, una posible donante de órganos
BECA I,JUAN PABLO; RAZMILIC T,MILA; RIUS A,MONTSERRAT;
Revista chilena de cirugía , 2011, DOI: 10.4067/S0718-40262011000400017
Abstract: this article presents the case of a 47 year old woman, on encephalic death state, who had not expressed her willing or acceptance for organ donation. the case is described as a narrative, contextualized, and in an anonymous way. a bioethical analysis of the family decision making and of the role of transplant coordinator is proposed. this presentation, with the description of its whole context and of the factors that influenced decisions, has the purpose to contribute to the development of deliberation competencies and to increase the awareness of the ethics problems of family decisions, of the conditions of anonymous organ assignation and of the of the end of life's meanings.
Muerte cerebral neonatal: reflexiones a partir de un caso clínico Brain death in a newborn infant
Juan Pablo Beca I,María Teresa Rotondo T
Revista chilena de pediatría , 1997,
Abstract:
Bárbara, una posible donante de órganos Barbara, a potential organ donnor
JUAN PABLO BECA I,MILA RAZMILIC T,MONTSERRAT RIUS A
Revista Chilena de Cirugía , 2011,
Abstract: Se presenta el caso de una mujer de 47 a os, en muerte encefálica y sin expresiones previas sobre su voluntad de ser donante de órganos. El caso se expone como una narración contextualizada, anonimizada y seguida de un análisis bioético de las decisiones familiares y del rol del coordinador de trasplantes. La presentación, con una descripción del contexto y de los factores que condicionan las decisiones, tiene el propósito de contribuir al desarrollo de la capacidad deliberativa y a tomar mayor conciencia del problema ético de las decisiones familiares, del anonimato de la asignación de órganos y del sentido del final de la vida. This article presents the case of a 47 year old woman, on encephalic death state, who had not expressed her willing or acceptance for organ donation. The case is described as a narrative, contextualized, and in an anonymous way. A bioethical analysis of the family decision making and of the role of transplant coordinator is proposed. This presentation, with the description of its whole context and of the factors that influenced decisions, has the purpose to contribute to the development of deliberation competencies and to increase the awareness of the ethics problems of family decisions, of the conditions of anonymous organ assignation and of the of the end of life's meanings.
Plasma rico en plaquetas: Una revisión bibliográfica Platelet Rich Plasma: A review of literature
T Beca,G Hernández,S Morante,A Bascones
Avances en Periodoncia e Implantología Oral , 2007,
Abstract: Se presenta una revisión bibliográfica de la evolución en la literatura acerca del plasma rico en plaquetas (PRP). Tras una introducción se expone la composición del PRP, aludiendo fundamentalmente a los factores de crecimiento presentes en él para continuar con la secuencia de obtención y empleo quirúrgico del producto. Posteriormente se puede observar una revisión del proceso de regeneración a nivel histológico desde el momento de colocación hasta la sexta. En el apartado de discusión, se pueden observar los distintos estudios a favor y en contra de la utilización del PRP encontrados en la literatura, y a continuación se apuntan los posibles riesgos recientemente atribuibles al empleo del PRP para terminar con una breve revisión de estudios comparativos de diversos métodos de obtención y activación del PRP. Por último, se establecen una serie de conclusiones y se expone la bibliografía consultada. The aim of this work was to make a review about the evolution of the platelet rich plasma (PRP) in literature. After an introduction, the main components of the PRP are showed, giving more relevance to the growing factors to continue with the obtaining procedure and its aplication in the surgical aspect. Later, a review about the regeneration process by means of histological findings is made from the very first moment to the sixth week. In the discussion, it can be observed that there is a great polemic between the found studies about the usefulness of the PRP in osseous regeneration, and then some potencial riks about the utilization of the PRP are put forward to finish with a brief review of comparative studies between different obtaining and activation methods. Finally, some conclusions are established and the bibliography searched is presented.
LA (IM) POSIBILIDAD DE CONSTRUIR UN CONCEPTO CIENTíFICO DE CONSTITUCIóN
Beca Freí,Juan Pablo;
Ius et Praxis , 2008, DOI: 10.4067/S0718-00122008000200009
Abstract: this work analyzes a number of concepts for constitution, that intend to answer what is a constitution, question that was asked by lassalle at the xix century. it is possible to observe that the concept does show an evolution through time, but that it is not possible to elaborate a neutral and scientific valid concept.
Embriones híbridos como fuente de células troncales embrionarias
Beca I,Juan Pablo;
Revista médica de Chile , 2007, DOI: 10.4067/S0034-98872007001100001
Abstract: the hfea (human fertilisations & embryology authority) recently accepted to perform research in hybrid embryos generated by transferring human somatic cell nucleus to cow enucleated oocytes, named cytoplasmatic hybrids. the aim is to obtain a source of embryonic stem cells without the use of human oocytes. the arguments for the approval are to avoid the risk of obtaining human oocytes and that these embryos will not be transferred to a female's womb for its development. those who oppose the technique argue that it is a manipulation of the beginning of life and a disrespect to the dignity of human life because of the destruction of embryos. nevertheless, the real nature of this new entity has not been established. biologically it is an embryo with 99% of human genome and animal's cytoplasm, not generated from human gametes, it is not a new genome and it will be used only to cultivate stem cells. it does not seem possible to define its nature beyond any doubts. if it were considered as a human embryo it should be respected and protected as every human being. once more, scientific progress opens new ethical and legal questions that we cannot answer in a definitive way. researchers are exploring new roads to obtain pluripotential stem cells which should favor the development of innovative therapies. the main objection is the unavoidable destruction of human embryos, although in this case its origin and nature are not clear
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