Comparison of the effects of Mg-6Zn and titanium on intestinal tract in vivo.
J Mater Sci Mater Med
; 24(6): 1515-25, 2013 Jun.
Article
em En
| MEDLINE
| ID: mdl-23512150
ABSTRACT
To evaluate the ability of Mg-6Zn to replace titanium nails in the reconstruction of the intestinal tract in general surgery, we compared the Mg-6Zn and titanium implants with respect to their effects on rat's intestinal tract by biochemical, radiological, pathological and immunohistochemical methods. The results indicated that Mg-6Zn implants started to degrade at the third week and disintegrate at the fourth week. No bubbles appeared, which may be associated with intestinal absorption of the Mg-6Zn implants. Pathological analyses (containing liver, kidney and cecum tissues) and biochemical measurements, including serum magnesium, creatinine, blood urea nitrogen, glutamic-pyruvic-transaminase and glutamic-oxaloacetic-transaminase proved that degradation of Mg-6Zn did not harm the important organs, which is an improvement over titanium implants. Immunohistochemical results showed that Mg-6Zn could enhance the expression of transforming growth factor-ß1. Mg-6Zn reduced the expression of tumor necrosis factor at different stages. In general, our study demonstrates that the Mg-6Zn alloy had good biocompatibility in vivo and performed better than titanium at promoting healing and reducing inflammation. It may be a promising candidate for stapler pins in intestinal reconstruction.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Suturas
/
Titânio
/
Zinco
/
Ceco
/
Tiflite
/
Magnésio
Limite:
Animals
Idioma:
En
Revista:
J Mater Sci Mater Med
Assunto da revista:
ENGENHARIA BIOMEDICA
Ano de publicação:
2013
Tipo de documento:
Article