SciELO - Scientific Electronic Library Online

 
vol.29 número1Efectos de la Selección y de la Superovulación en las Pérdidas Gestacionales de Ratonas CF1Incidencia de la Cabeza Humeral del Músculo Bíceps Braquial: Visión Anatómica índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

Links relacionados

Compartir


International Journal of Morphology

versión On-line ISSN 0717-9502

Resumen

REISDOERFERER, Gisele; PEREIRA, Kleber Fernando  y  CHOPARD, Renato Paulo. Fibroelastic Components of the Vesicourethral Junction of Rats in the Aging Process. Int. J. Morphol. [online]. 2011, vol.29, n.1, pp.214-220. ISSN 0717-9502.  http://dx.doi.org/10.4067/S0717-95022011000100036.

The vesicourethral junction comprising the vesical trigone, is relevant in setting and positioning of the urinary bladder, along with the vesical neck, fixed by lateral ligaments of the bladder and tendinous arch of the pelvis fascia. Namely,the puboprostatic ligament (men) and the pubovesical (women). The circular set elastic fibers in this junction are important and valuable in the elasticity and plasticity of the area, allowing quick expansion and withdrawal with the flow of urine, and associated to smooth muscle tissue and nerve control form an important collective to maintain urinary continence. The objective of the present study is to describe the elastic system in the vesicouretral junction in relation to aging and its involvement in the states of urinary continence and incontinence, as well as the study of the vesicouretral junction in various age groups while evaluating with electron transmission microscopy. To carry out the study, 12 Wistar rats were used, divided into groups: neonate (4 animals), adult group (4 animals) and aged group (4 animals). Electron transmission microscopy with use of tanic acid technique associated to glutaraldehyde fixation, satisfactorily showed the extreme structural differences between mature elaunin and oxytalan fibers present between intercelular spaces and bundles of collagen fibers. The phases of elastogenesis in neonate animals and degradation of the elastic system of older animals were also evaluated.

Palabras clave : Collagen staple fibres; Elastic staple fibres; Vesico-urethral junction.

        · resumen en Español     · texto en Inglés     · Inglés ( pdf )

 

Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons