Observed impacts of insulin therapy on callus cell transforming growth factor-beta 1 expression in diabetic rats.
Genet Mol Res
; 14(2): 5076-84, 2015 May 12.
Article
em En
| MEDLINE
| ID: mdl-26125699
The expression of transforming growth factor-beta 1 (TGF-ß1) inside the callus cells of diabetic rats and the impact of insulin therapy on its expression and biomechanics was investigated. The rats were randomly divided as follows: an insulin therapy group (IT), a diabetic model group (DM), and a non-diabetic control group (NC). Bone specimens from each group were extracted at different times for immunohistochemical observation of the expression of TGF-ß1. Concurrently, the destruction torque and torsional stiffness were detected at different times. One to four weeks after fracture, TGF-ß1 was widely expressed in fractured callus cells and periosteal proliferating cells, while the expression inside diabetic cells was significantly reduced. The expression of TGF-ß1 decreased over the first 68 weeks, and the mature bone cells never expressed TGF-ß1. The destruction torque (Nm) detected in the 6th week revealed that there was a statistically significant difference between the DM, NC, and IT groups (P < 0.01). In conclusion, TGF-ß1 expression was significantly reduced inside the callus cells of diabetic rats. Insulin therapy increased TGF-ß1 expression inside the callus cells of diabetic rats and improved the biomechanical characteristics of the callus.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Fraturas da Tíbia
/
Calo Ósseo
/
Diabetes Mellitus Experimental
/
Fator de Crescimento Transformador beta1
/
Hipoglicemiantes
/
Insulina
Tipo de estudo:
Prognostic_studies
Limite:
Animals
Idioma:
En
Revista:
Genet Mol Res
Assunto da revista:
BIOLOGIA MOLECULAR
/
GENETICA
Ano de publicação:
2015
Tipo de documento:
Article
País de afiliação:
China
País de publicação:
Brasil