Abstract:
:Curcumin is a bifunctional antioxidant derived from Curcuma longa. This study identifies curcumin as a neuroprotectant against hemin-induced damage in primary cultures of cerebellar granule neurons (CGNs) of rats. Hemin, the oxidized form of heme, is a highly reactive compound that induces cellular injury. Pretreatment of CGNs with 5-30 μM curcumin effectively increased by 2.3-4.9 fold heme oxygenase-1 (HO-1) expression and by 5.6-14.3-fold glutathione (GSH) levels. Moreover, 15 μM curcumin attenuated by 55% the increase in reactive oxygen species (ROS) production, by 94% the reduction of GSH/glutathione disulfide (GSSG) ratio, and by 49% the cell death induced by hemin. The inhibition of heme oxygenase system or GSH synthesis with tin mesoporphyrin and buthionine sulfoximine, respectively, suppressed the protective effect of curcumin against hemin-induced toxicity. These data strongly suggest that HO-1 and GSH play a major role in the protective effect of curcumin. Furthermore, it was found that 24 h of incubation with curcumin increases by 1.4-, 2.3-, and 5.2-fold the activity of glutathione reductase, glutathione S-transferase and superoxide dismutase, respectively. Additionally, it was found that curcumin was capable of inducing nuclear factor (erythroid-derived 2)-like 2 (Nrf2) translocation into the nucleus. These data suggest that the pretreatment with curcumin induces Nrf2 and an antioxidant response that may play an important role in the protective effect of this antioxidant against hemin-induced neuronal death.
journal_name
Oxid Med Cell Longevjournal_title
Oxidative medicine and cellular longevityauthors
González-Reyes S,Guzmán-Beltrán S,Medina-Campos ON,Pedraza-Chaverri Jdoi
10.1155/2013/801418subject
Has Abstractpub_date
2013-01-01 00:00:00pages
801418eissn
1942-0900issn
1942-0994journal_volume
2013pub_type
杂志文章abstract::Uroporphyrinogen decarboxylase (Hem12p) and transketolase (Tkl1p) are key mediators of two critical processes within the cell, heme biosynthesis, and the nonoxidative part of the pentose phosphate pathway (PPP). The redox properties of both Hem12p and Tkl1p from Saccharomyces cerevisiae were investigated using proteom...
journal_title:Oxidative medicine and cellular longevity
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journal_title:Oxidative medicine and cellular longevity
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abstract::[This corrects the article DOI: 10.1155/2017/6838921.]. ...
journal_title:Oxidative medicine and cellular longevity
pub_type: 杂志文章,已发布勘误
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journal_title:Oxidative medicine and cellular longevity
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journal_title:Oxidative medicine and cellular longevity
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journal_title:Oxidative medicine and cellular longevity
pub_type: 杂志文章,评审
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journal_title:Oxidative medicine and cellular longevity
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journal_title:Oxidative medicine and cellular longevity
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journal_title:Oxidative medicine and cellular longevity
pub_type: 杂志文章
doi:10.1155/2020/8209727
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journal_title:Oxidative medicine and cellular longevity
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journal_title:Oxidative medicine and cellular longevity
pub_type: 杂志文章,评审
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更新日期:2017-01-01 00:00:00
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journal_title:Oxidative medicine and cellular longevity
pub_type: 杂志文章
doi:10.1155/2018/5287971
更新日期:2018-05-10 00:00:00
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journal_title:Oxidative medicine and cellular longevity
pub_type: 杂志文章
doi:10.1155/2014/520316
更新日期:2014-01-01 00:00:00
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journal_title:Oxidative medicine and cellular longevity
pub_type: 杂志文章,评审
doi:10.1155/2013/374963
更新日期:2013-01-01 00:00:00
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journal_title:Oxidative medicine and cellular longevity
pub_type: 杂志文章
doi:10.1155/2018/9524657
更新日期:2018-02-14 00:00:00
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journal_title:Oxidative medicine and cellular longevity
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journal_title:Oxidative medicine and cellular longevity
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journal_title:Oxidative medicine and cellular longevity
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journal_title:Oxidative medicine and cellular longevity
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journal_title:Oxidative medicine and cellular longevity
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journal_title:Oxidative medicine and cellular longevity
pub_type: 杂志文章
doi:10.1155/2012/479348
更新日期:2012-01-01 00:00:00
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journal_title:Oxidative medicine and cellular longevity
pub_type: 杂志文章
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更新日期:2015-01-01 00:00:00
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journal_title:Oxidative medicine and cellular longevity
pub_type: 杂志文章,评审
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更新日期:2013-01-01 00:00:00
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journal_title:Oxidative medicine and cellular longevity
pub_type: 杂志文章
doi:10.1155/2012/627843
更新日期:2012-01-01 00:00:00
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journal_title:Oxidative medicine and cellular longevity
pub_type: 杂志文章
doi:10.1155/2019/2745352
更新日期:2019-03-26 00:00:00
abstract::Although Tamoxifen (TAM) is one of the most widely used drugs in managing breast cancer, many women still relapse after long-term therapy. Caffeic acid phenethyl ester (CAPE) is a polyphenolic compound present in many medicinal plants and in propolis. The present study examined the effect of CAPE on TAM cytotoxicity i...
journal_title:Oxidative medicine and cellular longevity
pub_type: 杂志文章
doi:10.1155/2016/3017108
更新日期:2016-01-01 00:00:00
abstract::Fisetin, a known antioxidant, has been found to be cytotoxic against certain cell lines. However, the mechanism by which it inhibits tumor growth in vivo remains unexplored. Recently, we have demonstrated that Aflatoxin-B1 (AFB1) induced hepatocarcinogenesis is associated with activation of oxidative stress-inflammato...
journal_title:Oxidative medicine and cellular longevity
pub_type: 杂志文章
doi:10.1155/2016/1972793
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