Your browser doesn't support javascript.
loading
Efeitos da braquiterapia intra-arterial com samário-153 sobre a neoproliferação intimal / Effects of intra-arterial brachytherapy with Samarium- 153 over intimal neoproliferation
São Paulo; s.n; 2003. [147] p. ilus, tab.
Thesis in Portuguese | LILACS | ID: lil-409010
RESUMEN
Estudos experimentais e em humanos o balão de angioplastia pode levar à estenose pela migração e proliferação das células musculares lisas e a síntese de matriz extracelular. Estudos têm mostrado a ação da braquiterapia contra esses mecanismos. Nós desenhamos este estudo para avaliar a inibição do tecido de proliferação pelo Samário-153(153Sm). Quarenta e três coelhos hipercolesterolêmicos foram submetidos à lesão de ambas artérias ilíacas e separados em três grupos com a dose de 15 Gy (n=14), com 60 Gy (n=36) e controle (n=36). A análise histológica morfométrica mostrou significante redução da neo-íntima com 15 Gy, quando comparado com os outros grupos. A dose de 60 Gy teve modificações estruturais e tissulares sugestivas de radiolesão.As previous demonstrated by experimental and human models, balloon dilation during angioplasty could lead to injury and stenosis due to smooth muscle cell migration and proliferation as well as extracellular matrix synthesis. Brachytherapy has been usefull against these factors. We pourposed was this study to evaluate neointimal tissue proliferation inhibition by Samarium-153 (153 Sm). Forty-three hypercholesterolemic rabbits underwent balloon injury in their both iliac arteries. They were separated into three groups throught 15 Gy irradiation doses (n=14), 60 Gy (n=36) and control group (n= 36). Histopathologic and morphometric analysis showed a significant neointimal reduction with 15 Gy, comparing to others groups to control and 60 Gy dosis. The 60 y doses determined structure and tissue changes as the ones of radiation lesion...
Subject(s)
Search on Google
Index: LILACS (Americas) Main subject: Samarium / Brachytherapy / Angioplasty, Balloon / Iliac Artery Type of study: Prognostic study Limits: Animals Language: Portuguese Year: 2003 Type: Thesis

Similar

MEDLINE

...
LILACS

LIS

Search on Google
Index: LILACS (Americas) Main subject: Samarium / Brachytherapy / Angioplasty, Balloon / Iliac Artery Type of study: Prognostic study Limits: Animals Language: Portuguese Year: 2003 Type: Thesis