Nuclear factor κB and IKB expression and calcium deposition of atherosclerotic plaques in apolipoprotein E and low density lipoprotein receptor knockout mice / 中华心血管病杂志
Chinese Journal of Cardiology
;
(12): 684-689, 2012.
Artigo
em Chinês
| WPRIM
| ID: wpr-326442
ABSTRACT
<p><b>OBJECTIVE</b>To observe the histopathological features, nuclear factor-κB (NFκB) and IKB expressions as well as calcium deposition of atherosclerosis plaques (AS) in apolipoprotein E (ApoE) and low density lipoprotein receptor (LDLR) knockout mice (ApoE(-/-), LDLR(-/-)fed high-fat diet.</p><p><b>METHODS</b>Eight C57BL/6J mice fed with normal diet were used as control, 32 ApoE(-/-) mice and LDLR(-/-) mice were divided into normal diet and high-fat diet groups (n = 8 each). After 4 months, aorta was collected for morphologic (HE, Oil Red O, Von Kossa) and immunohistochemistry (nuclear factor-κB, IKB, macrophage surface molecule-3, α-smooth action protein) analysis.</p><p><b>RESULTS</b>Degree of AS in ApoE(-/-) and LDLR(-/-) mice fed with high-fat diet were significantly severer than those fed with normal diet and AS was more significant in ApoE(-/-) mice than in LDLR(-/-) mice. NFκB and IKB expressions in high-fat diet group were significantly higher than the normal diet group (P < 0.05). Double-labeling of NFκB revealed dominant expression in smooth muscle cells. Calcium deposition was significantly more in ApoE(-/-) mice fed with high-fat diet than mice fed with normal diet (P < 0.05) and was similar in LDLR(-/-) mice fed with high and normal diet (P > 0.05).</p><p><b>CONCLUSION</b>High-fat diet contributes to the formation of AS plagues in ApoE(-/-) and LDLR(-/-) mice joined by upregulated NFκB and IKB expressions and calcium deposition.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Patologia
/
Apolipoproteínas E
/
Receptores de LDL
/
Cálcio
/
NF-kappa B
/
Camundongos Knockout
/
Proteínas I-kappa B
/
Placa Aterosclerótica
/
Genética
/
Metabolismo
Limite:
Animais
Idioma:
Chinês
Revista:
Chinese Journal of Cardiology
Ano de publicação:
2012
Tipo de documento:
Artigo
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