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Chinese Journal of Hepatology ; (12): 653-656, 2009.
Artículo en Chino | WPRIM | ID: wpr-306709

RESUMEN

<p><b>OBJECTIVE</b>To investigate the dynamic changes of a-AR, b1-AR and b2-AR expression in hepatic fibrosis.</p><p><b>METHODS</b>Rat hepatic fibrosis model was established by bile duct ligation (BDL). HE and Masson staining were used to determine hepatic fibrosis levels. Immunohistochemistry was applied to detect alpha -smooth muscle actin (alpha -SMA), a marker of hepatic stellate cell (HSC) activation; Western blot and real-time RT-PCR were used to measure the dynamic changes of alpha -AR, beta(1)-AR, beta(2)-AR expression on protein and mRNA levels, respectively, during the development of hepatic fibrosis.</p><p><b>RESULTS</b>(1) HE and Masson trichrome staining showed that the liver fibrosis models were established successfully. (2) At 1, 2, 3, 4 wk after BDL, alpha -SMA positive area density of the model group (10.58% +/- 1.75%, 24.14% +/- 2.02%, 29.74% +/- 2.59%, 34.28% +/- 2.01%) was significantly higher than that of the sham operation group (4.12% +/- 1.51%), P less than 0.01. (3) The expression of alpha -AR, beta(1)-AR, beta(2)-AR protein and mRNA was increased with the development of the hepatic fibrosis (P less than 0.05). (4) alpha -SMA expression was positively associated with alpha -AR, beta(1)-AR, beta(2)-AR, r values were 0.564, 0.753 and 0.606, respectively.</p><p><b>CONCLUSION</b>The expression of alpha -SMA is increased dramatically during the fibrosis, and is positively associated with the expression of alpha -AR, beta(1)-AR and beta(2)-AR.</p>


Asunto(s)
Animales , Masculino , Ratas , Actinas , Metabolismo , Células Estrelladas Hepáticas , Metabolismo , Patología , Inmunohistoquímica , Hígado , Metabolismo , Patología , Cirrosis Hepática Biliar , Metabolismo , Patología , Cirrosis Hepática Experimental , Metabolismo , Patología , Reacción en Cadena de la Polimerasa , ARN Mensajero , Genética , Metabolismo , Distribución Aleatoria , Ratas Sprague-Dawley , Receptores Adrenérgicos alfa , Genética , Metabolismo , Receptores Adrenérgicos beta , Genética , Metabolismo , Sistema Nervioso Simpático , Metabolismo , Factores de Tiempo
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