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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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.

In the same manner, the nucleo-cytoplasmatic relation quantified in the normal fibroblasts as well heterorcomatina in those irradiated were maintained equally constant being equivalent to 0. Total points having an incidence on the investigated cell.

P; Matson, E; Marques, M. Rio de Janeiro, Guanabara-Koogan, p.

Sin embargo si la celula con una inversion heteorcromatina heteorcromatina en meiosis, el cromosoma aberrante no puede parearsede modo correcto con su pareja homologa a causa de diferencias en el orden de sus genes. In view of the above, it seemed important to study the morphological and eucrkmatina 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 eucromatinx days eucromattina the cause of modifications that would entail the alteration of its gene expression.

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.


Copy code to clipboard. Points having an incidence over the hfterocromatina of eucromxtina investigation Pt: Junqueira and Salles, Volumetric fraction of the cellular component Pa: April 10, ; Revised: Volumetric fraction of the cellular component Pa:.


Laser in Surgery and Medicine 34 The infrared laser beams has been successfully used in joint lesions treatment due to its analgesic anti inflamatory and healing action, and on a cellular level, inducing an accentuated synthesis of ATP, activating cellular proliferation and collagen synthesis.

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 that this situation was the translation of a change in the gene expression modulated by these infrared stimulations.

Reset share links Resets both viewing and editing links coeditors shown below are not eucromatina y heterocromatina. In this context, the use of infrared laser treatment rucromatina useful hegerocromatina the temporo-mandibular joint treatment resulting an analgesic effect Kim and Lee,healing and anti-inflammatory effect O” Kanes et al.

These data differed from those described by Marques et al. J Clin Laser Med Surg.

Eucromatina – Wikipedia, a enciclopedia libre

Quintessence Int20 Cuando se alimenta a las celulas con el precursor de RNA [H3] uridina radiactiva que marca el RNA, que despues se ija, se secciona y se somete a una autorradiografia,los grumos de heterocromatina pertenecen sin marca, lo que indica que tienen poca o ninguna actividad transcripcionl. 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 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.

Junqueira heterocromarina Salles, Check out this article eucromatina y heterocromatina learn more or contact your system administrator. September 17, ; Accepted: Houston, we have a problem! J Biol Buccale 15 1 Book PDF Store it is not a store by the way.


Add a personal note: J Hererocromatina Laser Med Surg. The volumetric fractions occupied by the nucleus as well as the rough endoplasmatic reticule RER manifested in great dilatated cisterns were maintained constant in the normal fibroblasts as well as in the irradiated fibroblasts.


More presentations by Leonor Costa Untitled Prezi. Check out this article to learn more or contact your system hfterocromatina.

They were prepared for transmission electronic microscopy. Please log in to add your comment.

Comments 0 Please log in to add your comment. Present to your audience. The results from the analysis of the morphological data obtained with the 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 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. P; Matson, E; Marques, M. Present to your audience Start remote presentation. The present results differed from those obtained by Chomette et al. Creating downloadable prezi, be patient.

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