Abstract：
:The production of reactive oxygen species plays roles during the development of endothelial dysfunction and it represents a significant prognostic factor for evaluating the risk of cardiovascular disease. Although statins target cholesterol biosynthesis, the beneficial effects on cardiovascular disease remain to be fully elucidated. In this work, we explored the in vitro effects of pravastatin on vascular functionality. We studied the effect of the incubation with this statin on acetylcholine relaxation using aorta from spontaneously hypertensive rats (SHR). Consistent with a cholesterol-independent mechanism of action, we show that pravastatin induces a significant improvement of endothelium-dependent relaxation that is not completely reversed by mevalonic acid. Assays with 250microM of lucigenin were carried out to verify whether such action could be mediated by the scavenger properties of pravastatin. Treatment of aortic rings derived from Wistar rats with lucigenin promotes superoxide generation (O(2)(-)) and the subsequent loss of both endothelium-dependent and independent relaxations. The addition of pravastatin reduced the lucigenin-triggered O(2)(-) levels as well as its inhibitory effects on acetylcholine- and sodium nitroprusside-dependent responses. These effects were not counteracted by mevalonic acid, further supporting the idea that the effects of pravastatin do not entail alterations in cholesterol biosynthesis. In conclusion, this study can contribute to elucidate the mechanism responsible for the antioxidant activity of pravastatin, and describes relationship between a scavenger effect of pravastatin and the improvement of vascular reactivity.
journal_name
Eur J Pharmacoljournal_title
European journal of pharmacologyauthors
Kassan M,Montero MJ,Sevilla MAdoi
10.1016/j.ejphar.2009.12.037subject
Has Abstractpub_date
2010-03-25 00:00:00pages
107-11issue
1-3eissn
0014-2999issn
1879-0712pii
S0014-2999(09)01158-3journal_volume
630pub_type
杂志文章abstract：:Glutamine is the most abundant amino acid in the bloodstream. It is important in nucleotide synthesis, is anti-catabolic, has anti-oxidant properties via metabolism to glutathione, may enhance immune responsiveness and possesses immunoregulatory functions. Moreover, it reduces atrophy of intestinal mucosa in animals o...
journal_title：European journal of pharmacology
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journal_title：European journal of pharmacology
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更新日期：2008-05-31 00:00:00
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journal_title：European journal of pharmacology
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journal_title：European journal of pharmacology
pub_type： 杂志文章
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journal_title：European journal of pharmacology
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doi：10.1016/j.ejphar.2014.01.010
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journal_title：European journal of pharmacology
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journal_title：European journal of pharmacology
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journal_title：European journal of pharmacology
pub_type： 杂志文章
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journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2008.02.002
更新日期：2008-04-14 00:00:00
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journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(96)00339-1
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journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2004.01.014
更新日期：2004-03-08 00:00:00
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journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(92)90675-t
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journal_title：European journal of pharmacology
pub_type： 杂志文章
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journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(97)00184-2
更新日期：1997-07-23 00:00:00
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journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(86)90698-9
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journal_title：European journal of pharmacology
pub_type： 杂志文章
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journal_title：European journal of pharmacology
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pub_type： 杂志文章
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journal_title：European journal of pharmacology
pub_type： 杂志文章
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journal_title：European journal of pharmacology
pub_type： 杂志文章
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journal_title：European journal of pharmacology
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journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(95)00409-e
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journal_title：European journal of pharmacology
pub_type： 杂志文章
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journal_title：European journal of pharmacology
pub_type： 杂志文章,评审
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更新日期：2020-01-05 00:00:00
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journal_title：European journal of pharmacology
pub_type： 杂志文章
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journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2005.08.036
更新日期：2005-10-17 00:00:00
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journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(95)00457-2
更新日期：1995-11-24 00:00:00
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journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(89)90761-9
更新日期：1989-08-11 00:00:00
abstract：:We investigated the inhibitory effects of 1 mM of the inorganic cations, La3+, Cd2+, Mn2+, Ni2+ and Co2+ on contractions induced by K+ (100 mM) and 5-hydroxytryptamine (5-HT, 10(-5) M) in the isolated rat jugular vein and on contractions induced by K+ (100 mM), 5-HT (10(-5] and noradrenaline (NA, 10(-5) M) in the rat ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(90)90634-i
更新日期：1990-08-28 00:00:00
