Download scientific diagram | Fracciones volumétricas (%) de Eucromatina y Heterocromatina evaluados en hepatocitos de rata irradiados con dosis de láser . Download scientific diagram| Fracciones volumétricas (%) de Eucromatina y Heterocromatina evaluados en hepatocitos de rata irradiados con. Fibras de nucleoproteínas muy extendidas (COMPLEJO DNA +PROTEÍNAS= CROMOSOMAS). Puede ser: Heterocromatina o Eucromatina.
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How to cite this article. J Clin Laser Med Surg. The cellular area pertaining to the irradiated fibroblasts showed an accentuated decrease, equivalent to 40 square microns in relation to the normal fibroblasts Table 1. Pogrel, MA; Chen, J.
However, having the evaluation of increased euchromatine volumetric fractions in the irradiated fibroblasts as a base, thus with accentuated RNA transcription rates and its respective relation with the volume found in the rough reticulum, allowed an argument that the rate of collagen synthesis could increase, to a period of high metabolic activity, “to full function” as a response to the stimulations of infrared radiation in relation to that eucromagina in the normal fibroblasts.
Junqueira and Salles, Stereological Method Beginning with the blocks for electronic microscopy, ultra fine slices were obtained in which each one of the cellular types were micrographed with an augmentation of All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License. The results from the analysis of the morphological data obtained with hetetocromatina transmission electronic microscopy fundamentally considering those relative to the similar volumetric fractions of cytoplasm, nucleus and those corresponding to eucrkmatina rough endoplasm reticule from the normal as well as irradiated fibroblasts, demonstrated that these cells possessed similar morphological parameters, indicating that the effects produced by the stimulations with infrared laser did not have heterlcromatina inhibiting action, nor an activating one of the cellular activity, situation which would translate in concluding primarily that these cells displayed a cellular function translated to a rate of protein synthesis-secretion practically similar.
Feasibility of wound dressing transillumination. How to cite this article. Transmission electronic micrographs of normal and irradiated fibroblasts were obtained with final increase of Results are eucromarina Figure 3. Morphometric and ultrastructural studies of the effect of infrared laser on rabbit temporo-mandibular joint fibroblasts.
All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License. It could be concluded that the cellular function reflected in collagen synthesis and secretion remained constant in both cellular types. Book PDF Store it is not a store by the way. Creating downloadable prezi, be patient.
In the electronic micrographs obtained from the normal as well as the irradiated fibroblasts Fig. Educalingo cookies heterocromqtina used to personalize ads and get web traffic statistics.
EUCROMATINA Y HETEROCROMATINA PDF
Total points having an incidence on the investigated cell For the calculation of the cellular area, a Polar Ott Kempte, Bayern Germany Planimeter was used. Beginning with the blocks for electronic microscopy, ultra fine slices were obtained in which each one of the cellular types were micrographed with an augmentation of Copy code to clipboard.
The results from the analysis of the morphological data obtained with the transmission electronic microscopy heterocroatina considering those relative to the similar volumetric fractions of cytoplasm, nucleus and those corresponding to the rough endoplasm reticule from the normal as well as irradiated fibroblasts, demonstrated that these cells possessed similar morphological parameters, heterocrimatina that the effects produced by heteorcromatina stimulations with infrared laser did not have an inhibiting action, nor an activating one of the cellular activity, situation which would translate in concluding primarily that these cells displayed a cellular function translated to a rate of protein synthesis-secretion practically similar.
Esta proteina de fusion nueva retiene la actividad catalitica de la proteina original ABL pero no esta sujeta a los mecanismos normales de regulacion celular.
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They were prepared for transmission electronic microscopy. April 10, ; Revised: Services on Demand Journal. P; Matson, E; Marques, M. Points having an incidence over the component heteorcromatina eucromxtina investigation Pt: Results are in Figure 3.
Considering that study of Cell Biology demonstrates that as long as the cells are stimulated, its components are subject to qualitative, quantitative and surface modifications, the analysis of electronic micrographs show eucromatina y heterocromatina the modification of different components reflects into cellular function, pointing out the susceptible changes to be evaluated and compared between the normal and stimulated cells in relation to its morphological and morphometric aspects that determine eucromatina y heterocromatina ultra-structural modifications pattern characterizing the radiation stimulation, in this biological model.
The samples were studied and photographed in a Phillips EM electronic microscope. In this context, the use of infrared laser treatment is useful in the temporo-mandibular joint treatment resulting an analgesic effect Kim and Lee,healing and anti-inflammatory effect O” Kanes et al.
More presentations by Leonor Costa Untitled Prezi. It would be pertinent to recall that this effect, a product of the radiation, decreased the area of the irradiated cell to one half, 82 to 40 square microns transforming it in the typical morphology of a “juvenile” fibroblast, making it tempting to suppose heterocromahina this yeterocromatina was the translation of a change in the gene expression modulated by these infrared stimulations. De modo similar a las inversiones, por lo general una translocacion que ocurre en una celula somatica tienen poco efecto en la funcion de la celula o su progenie.
Gordon and Breach, London. Total points having an incidence on the investigated cell. Present to your audience. Check out this article to learn more or contact your system hfterocromatina. Volumetric fraction of the cellular component Hetdrocromatina The results derived from the morphometric comparative study between the normal and irradiated fibroblasts indicated that there were significant differences with respect to the volumetric fractions of euchromatin and heterochromatin and fundamentally in the cellular areas of both types.
Volumetric fractions of the quoted cell corresponding to nucleus, cytoplasm, rough endoplasmatic reticule, eu and heterochromatin were evaluated. Histoenzymology and electron microscopy study.
In the same manner, the nucleo-cytoplasmatic relation quantified in the normal eucfomatina as well as in those irradiated were maintained equally constant being equivalent to 0. Sin embargo si la celula con una inversion heteorcromatina entra en meiosis, el cromosoma aberrante no puede parearsede modo correcto con su pareja homologa a causa de diferencias eucrojatina el orden de sus genes.
In relation to the absence of intracellular collagen, the present results coincided with those of Berkovitz and Pacy obtained by studying the ultra structure of the fibro-cartilage also pertaining to the temporo-mandibular joint of the rabbit. These data differed from those described by Marques et al.
The susceptible cells, if stimulated by external effectors, constitute an excellent model for investigation of the biochemical, physiological, morphological and morphometric modifications that could characterize the process of cell stimulation. In view of the above, it seemed important to study eucrmoatina morphological and morphometric differences observed between the temporo-mandibular joint disc fibroblasts pertaining to normal rabbits and those whose changes in their phenotype generated by a daily stimulation with infrared laser for a period of 10 consecutive days as the cause of modifications that would entail the alteration of its gene expression.
Junqueira heterocromarina Salles, Check out this article eucromatina y heterocromatina learn more or contact your system administrator. J Biol Buccale 15 1 Subsequently, it was submitted to a wash solution of 6 g of NaC1 and 73 g of sucrose dissolved in 1 l of distilled water.
Subsequently, it was submitted to a wash solution of 6 g of Heteroromatina and 73 g of sucrose dissolved in 1 l of distilled water. P; Matson, E; Marques, M. The present results differed from those obtained by Chomette et al. However, by means of infrared laser stimulations, this fibroblast facilitated protein synthesis, due to high percentage of transcriptionally active euchromatine.