Effect of homocysteine on gluconeogenesis in mice / 南方医科大学学报
Journal of Southern Medical University
; (12): 507-510, 2013.
Artículo
en Chino
| WPRIM (Pacífico Occidental)
| ID: wpr-322013
Biblioteca responsable:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the expressions of glucose-6-phosphatase (G6Pase) and phosphoenolpyruvate carboxykinase (PEPCK) in the liver of mice with hyperhomocysteinemia (HHcy) and explore the mechanism of gluconeogenesis induced by homocysteine.</p><p><b>METHODS</b>Fifty mice were randomly divided into normal control group (n=25) and HHcy group (n=25) and fed with normal food and food supplemented with 1.5% methionine, respectively. After 3 months of feeding, the fasting blood glucose and insulin levels were determined, and HOMA insulin resistance index (HOMA-IR) was calculated. The expressions of G6Pase and PEPCK in the liver of mice were detected using RT-PCR and Western blotting.</p><p><b>RESULTS</b>The fasting blood glucose and insulin levels and HOMA-IR were significantly higher in HHcy group than in the control group (P<0.05). RT-PCR and Western blotting showed that the hepatic expressions of G6Pase and PEPCK mRNA and proteins increased significantly in HHcy group compared with those in the control group (P<0.05).</p><p><b>CONCLUSION</b>Homocysteine promotes gluconeogenesis to enhance glucose output and contribute to the occurrence of insulin resistance.</p>
Texto completo:
Disponible
Base de datos:
WPRIM (Pacífico Occidental)
Asunto principal:
Sangre
/
Resistencia a la Insulina
/
Glucosa-6-Fosfatasa
/
Fosfoenolpiruvato Carboxiquinasa (ATP)
/
Hiperhomocisteinemia
/
Gluconeogénesis
/
Homocisteína
/
Hígado
/
Metabolismo
/
Ratones Endogámicos
Límite:
Animales
Idioma:
Chino
Revista:
Journal of Southern Medical University
Año:
2013
Tipo del documento:
Artículo