Análisis Morfométrico Ultraestructural de Células Normales de Glándula Parótida de Rata
2013
A partir de 10 ratas hembras con un peso aproximado de 250 g y 4 meses de vida, fueron obtenidas quirurgicamente muestras de glandula parotida las que se trataron con tecnicas de microscopia electronica de transmision para posteriormente obtener microfotografias de celulas parotideas con aumentos finales de hasta 21300 X. En las citadas microfotografias se aplicaron tecnicas morfometricas con el objetivo de cuantificar las fracciones volumetricas que los distintos componentes ocupan en estas celulas normales, describiendo de esta manera sus volumenes y relacionandolos con la funcionalidad que desempenan en esta celula normal. Se evaluaron las fracciones volumetricas pertenecientes a: citoplasma, nucleo, mitocondrias, reticulo endoplasmatico rugoso (RER), granulos de zimogeno, eu y heterocromatina. De igual forma, se cuantifico las areas celulares y nucleares. Contando con los datos numericos producto de la evaluacion morfometrica de sus componentes se podra determinar el patron de distribucion de sus organelos y de funcionalidad de esta celula activa en la sintesis y secrecion de proteinas representada por los granulos de zimogeno de diastasa y diversas proteinas salivales.(AU) From 10 female rats weighing approximately 250 g and aged 4 months, samples of parotid gland were obtained surgically which were treated with transmission electronic microscopy in order to obtain microphotographs with final increases of up to 21,300 X. Morphometric techniques were applied to these microphotographs to quantify the volumetric fractions that the different components occupy in these normal cells, thus describing their volumes and relating them to their functionality in this normal cell. Volumetric fractions were evaluated pertaining to: cytoplasm, nucleus, mitochondria, rough endoplasmic reticulum (RER), zymogen granules, eu and heterochromatin. Likewise, cell and nuclear areas were quantified. With the numerical data from the morphometric evaluation of its components, it was possible to determine the distribution pattern of the organelles and functionality of this cell active in protein synthesis and secretion represented by diastase zymogen granules and various salivary proteins.(AU)
- Correction
- Source
- Cite
- Save
- Machine Reading By IdeaReader
0
References
0
Citations
NaN
KQI