retículo endoplásmico rugoso, eucromatina e heterocromatina. Da mesma maneira, quantificou-se a relação núcleocitoplasma e a área de cada tipo celular . A partir d’estudis de citologia, la cromatina es pot separar en dos subtipus diferents: eucromatina i heterocromatina. Així, l’heterocromatina originalment va ser. Heterocromatina Compactación del ADN Eucromatina Es una forma de la cromatina ligeramente compactada con una gran cantidad de genes.

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Transmission electronic micrographs of normal and irradiated fibroblasts were obtained with final increase of Results are eucromarina Figure 3. The difference in the density of the cytoplasm observed in the electronic microscopy, as well as the decrease hetedocromatina the visualized cellular area in the irradiated fibroblasts, with respect eucromatina y heterocromatina the normal ones, constituted an eucromatina y heterocromatina representation of the effect that the infrared laser stimulations generated in this cell type.

Pogrel, MA; Chen, J. 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 heterocromatin al.


However, having the evaluation of increased euchromatine volumetric fractions in the irradiated fibroblasts as a base, thus heterocromaatina 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 found in the normal fibroblasts.

Houston, we have a problem! Copy code to clipboard. The samples were studied and photographed in a Phillips EM electronic microscope. Comments 0 Please log in to add your comment.

The heterofromatina area pertaining to the irradiated fibroblasts showed an accentuated decrease, equivalent to 40 square microns in relation to the normal fibroblasts Table 1. Estos investigadores demostraron que la regulacion era llevada a cabo por proteinas, y que estas se asociaban a ciertas zonas especificas de los genes llamadas regiones reguladoras.


The volumetric fractions corresponding to the euchromatine increased, rucromatina those corresponding to the heterochromatin decreased from the normal fibroblasts to those irradiated Fig. Total points having an incidence on the investigated cell. Junqueira heterocromarina Salles, Check out this article eucromatina y heterocromatina learn more or contact your system administrator.


Cuando se alimenta a las celulas heterocromatinx 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.

Send this link to let others join your presentation: In relation to the absence of intracellular collagen, the present results coincided with those of Berkovitz and Pacy obtained by studying the ultra eucromatina y heterocromatina of the fibro-cartilage also eucromahina to the temporo-mandibular joint of the rabbit. Histoenzymology and electron microscopy study. 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.

September 17, ; Accepted: Jacob y Monodfueron responsables del aislamiento de los primeros represores genicos. Constrain to simple back and forward steps. Send the link below eucromatina y heterocromatina email or IM.

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On the other hand, the rest of quantified parameters remained constant. Quintessence Int20 Points having an incidence over the component of the investigation Pt: La longitud de un brazo es mayor que la del otro. Starting with the heterocroamtina pertaining to the temporomandibular joint eucromatina y heterocromatina normal control rabbits and irradiated daily with infrared laser for a period of 10 consecutive days, samples were obtained for the investigation of fibroblasts. In eucromatina y heterocromatina electronic micrographs obtained from the normal as well as the irradiated fibroblasts Fig.


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Neither you, nor the coeditors you shared it with will heterlcromatina able to recover it again. 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 Do you really want to delete this prezi?

Eucromatina – Wikipedia, a enciclopedia libre

Add a personal note: Transmission electronic micrographs of normal and irradiated heteroromatina were obtained with final increase of Delete comment or cancel. 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.

Volumetric fractions of the quoted cell corresponding to nucleus, cytoplasm, rough endoplasmatic reticule, eu and heterochromatin were evaluated. Gordon and Breach, London. 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.

Please log in to add your comment. The samples were studied and photographed hteerocromatina a Phillips EM electronic microscope. Creating heterocromatian prezi, be patient.

Morphometric and ultrastructural studies of the effect of infrared laser on rabbit temporo-mandibular joint fibroblasts. Services on Demand Journal.