Effects of hydrogen sulfide on myocardial fibrosis and MAPK1/3 and MMP-8 expression in diabetic rats / 南方医科大学学报
Journal of Southern Medical University
;
(12): 549-552, 2015.
Artículo
en Chino
| WPRIM
| ID: wpr-355330
ABSTRACT
<p><b>OBJECTIVE</b>To explore the effects of hydrogen sulfide (H(2)S) on myocardial fibrosis and expressions of MAPK1/3 and MMP-8 in diabetic rats.</p><p><b>METHODS</b>Forty adult male SD rats were randomized into 4 groups, namely the control group, diabetes mellitus group (STZ group), diabetes mellitus with H(2)S treatment group (STZ+H(2)S group), and normal rats with H(2)S treatment group (H(2)S group). Diabetes was induced by intraperitoneal injections of 40 mg/kg streptozotocin (STZ). The rats in the control group received daily intraperitoneal injections of saline, and those in STZ+H(2)S group and H(2)S group were given NaHS (100 µmol/kg) injections. After 8 weeks, the pathologies of cardiac fibrosis were examined with HE staining, and the expressions of collagen I, MAPK1/3 and MMP-8 were analyzed with Western blotting.</p><p><b>RESULTS</b>Compared with the control group, the diabetic rats showed increased collagen content and obvious interstitial fibrosis in the myocardial tissue with significantly increased expression levels of collagen I, MAPK1/3 and MMP-8 (P<0.05); all these changes were obviously reversed by treatment with H(2)S (P<0.05). Collagen I, MAPK1/3 and MMP-8 expression levels and the degree of myocardial fibrosis were comparable between H(2)S group and control group (P>0.05).</p><p><b>CONCLUSION</b>Hydrogen sulfide can attenuate cardiac fibrosis in diabetic rats, and the mechanism may involve the inhibition of MAPK1/3/MMP-8 signal pathway.</p>
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Patología
/
Farmacología
/
Fibrosis
/
Ratas Sprague-Dawley
/
Proteína Quinasa 1 Activada por Mitógenos
/
Metaloproteinasa 8 de la Matriz
/
Colágeno Tipo I
/
Proteína Quinasa 3 Activada por Mitógenos
/
Diabetes Mellitus Experimental
/
Sulfuro de Hidrógeno
Límite:
Animales
Idioma:
Chino
Revista:
Journal of Southern Medical University
Año:
2015
Tipo del documento:
Artículo
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