Abstract:
:Free radical damage to many cellular components has been proposed as the main mechanism underlying the aging process. In the liver, NO can be generated by iNOS, but also by the constitutively expressed endothelial NOS (eNOS). iNOS enzyme appears to be expressed in liver disease such as cirrhosis and fulminant hepatitis, while the eNOS is expressed in physiological conditions. Ten young and ten old Wistar rats were sacrificed and their livers were excised. Liver sections were incubated with an anti-iNOS antibody of rabbit origin. RT-PCR and Western blot analysis were performed and nitric oxide activity was calculated. A significant increase of iNOS immunoreactivity was seen in the aged liver sections versus young liver sections. iNOS protein is expressed in greater quantities in the aged group, compared to the young group. In this study we show, for the first time, that aging in the rat liver is accompanied by a spontaneous induction of iNOS mRNA, high levels of iNOS protein and immunohistochemistry/image analysis.
journal_name
J Biol Regul Homeost Agentsjournal_title
Journal of biological regulators and homeostatic agentsauthors
Patruno A,Speranza L,Tetè S,Mastrangelo F,De Lutiis MA,Pesce M,Franceschelli S,Vinciguerra I,Felaco M,Grilli Asubject
Has Abstractpub_date
2007-01-01 00:00:00pages
89-95issue
3-4eissn
0393-974Xissn
1724-6083pii
4journal_volume
21pub_type
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journal_title:Journal of biological regulators and homeostatic agents
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journal_title:Journal of biological regulators and homeostatic agents
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journal_title:Journal of biological regulators and homeostatic agents
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journal_title:Journal of biological regulators and homeostatic agents
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journal_title:Journal of biological regulators and homeostatic agents
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journal_title:Journal of biological regulators and homeostatic agents
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journal_title:Journal of biological regulators and homeostatic agents
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journal_title:Journal of biological regulators and homeostatic agents
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journal_title:Journal of biological regulators and homeostatic agents
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journal_title:Journal of biological regulators and homeostatic agents
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journal_title:Journal of biological regulators and homeostatic agents
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journal_title:Journal of biological regulators and homeostatic agents
pub_type: 临床试验,杂志文章
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journal_title:Journal of biological regulators and homeostatic agents
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journal_title:Journal of biological regulators and homeostatic agents
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journal_title:Journal of biological regulators and homeostatic agents
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journal_title:Journal of biological regulators and homeostatic agents
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journal_title:Journal of biological regulators and homeostatic agents
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journal_title:Journal of biological regulators and homeostatic agents
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journal_title:Journal of biological regulators and homeostatic agents
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journal_title:Journal of biological regulators and homeostatic agents
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