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Oestradiol treatment counteracts the effect of fructose-rich diet on matrix metalloproteinase 9 expression and NFκB activation
M. Bundalo, M. Zivkovic, T. Culafic, M. Stojiljkovic, G. Koricanac, A. Stankovic
Jazyk angličtina Země Česko
Typ dokumentu časopisecké články
NLK
Free Medical Journals
od 2000
Freely Accessible Science Journals
od 2000
ProQuest Central
od 2005-01-01
Health & Medicine (ProQuest)
od 2005-01-01
ROAD: Directory of Open Access Scholarly Resources
od 2000
- MeSH
- dieta škodlivé účinky MeSH
- estradiol farmakologie MeSH
- fosforylace účinky léků MeSH
- fosfoserin metabolismus MeSH
- fruktosa škodlivé účinky MeSH
- matrixová metaloproteinasa 9 genetika metabolismus MeSH
- messenger RNA genetika metabolismus MeSH
- myokard enzymologie patologie MeSH
- NF-kappa B metabolismus MeSH
- ovarektomie MeSH
- potkani Wistar MeSH
- regulace genové exprese enzymů účinky léků MeSH
- tělesná hmotnost účinky léků MeSH
- transkripční faktor RelA metabolismus MeSH
- velikost orgánu účinky léků MeSH
- zvířata MeSH
- Check Tag
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
Fructose-rich diet induces metabolic changes similar to those observed in metabolic syndrome. Among other matrix metalloproteinases, MMP-9 has an important role in adverse cardiac remodelling and might have a role in the development of cardiovascular disorders associated with metabolic syndrome. The changes of MMP-9 expression could be mediated via the NFκB pathway. In this study we investigated the effect of fructose-rich diet on MMP-9 expression in the heart of male and female rats, along with the effect of fructose-rich diet and oestradiol on MMP-9 expression in ovariectomized females. We further assessed the effect of fructose-rich diet and oestradiol on NFκB activation, measured as the level of p65 phosphorylation at Ser 276. The results showed that the diet regime did not affect the heart mass. Higher MMP-9 gene expression was found in cardiac tissue of male rats fed the fructose-rich diet than in females on the same diet regime. In ovariectomized females, fructose-rich diet upregulated MMP-9 protein and mRNA expression in the heart, as well as phosphorylation of the p65 subunit of NFκB at Ser 276. Oestradiol replacement therapy reverted these changes in the heart of ovariectomized females. This study has shown that oestradiol could revert the early molecular changes in MMP-9 expression induced by fructose-rich diet that occurred before cardiac hypertrophy development by decreasing phosphorylation of the NFκB p65 subunit at Ser 276.
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- $a Oestradiol treatment counteracts the effect of fructose-rich diet on matrix metalloproteinase 9 expression and NFκB activation / $c M. Bundalo, M. Zivkovic, T. Culafic, M. Stojiljkovic, G. Koricanac, A. Stankovic
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- $a Fructose-rich diet induces metabolic changes similar to those observed in metabolic syndrome. Among other matrix metalloproteinases, MMP-9 has an important role in adverse cardiac remodelling and might have a role in the development of cardiovascular disorders associated with metabolic syndrome. The changes of MMP-9 expression could be mediated via the NFκB pathway. In this study we investigated the effect of fructose-rich diet on MMP-9 expression in the heart of male and female rats, along with the effect of fructose-rich diet and oestradiol on MMP-9 expression in ovariectomized females. We further assessed the effect of fructose-rich diet and oestradiol on NFκB activation, measured as the level of p65 phosphorylation at Ser 276. The results showed that the diet regime did not affect the heart mass. Higher MMP-9 gene expression was found in cardiac tissue of male rats fed the fructose-rich diet than in females on the same diet regime. In ovariectomized females, fructose-rich diet upregulated MMP-9 protein and mRNA expression in the heart, as well as phosphorylation of the p65 subunit of NFκB at Ser 276. Oestradiol replacement therapy reverted these changes in the heart of ovariectomized females. This study has shown that oestradiol could revert the early molecular changes in MMP-9 expression induced by fructose-rich diet that occurred before cardiac hypertrophy development by decreasing phosphorylation of the NFκB p65 subunit at Ser 276.
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