Protective mechanisms of pycnogenol in ethanol-insulted cerebellar granule cells.
Protective mechanisms of pycnogenol in ethanol-insulted cerebellar granule cells.
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碧萝芷对乙醇损伤的小脑颗粒细胞的保护机制。
DOI:
10.1002/neu.20057
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发表时间:
2004
期刊:
影响因子:
--
通讯作者:
Heaton,MarietaB
中科院分区:
文献类型:
--
作者:
Siler-Marsiglio,KendraI;Paiva,Michael;Madorsky,Irina;Serrano,Yahaira;Neeley,Andy;Heaton,MarietaB
Pycnogenol® (PYC), a patented combination of bioflavonoids extracted from the bark of French maritime pine (Pinus maritima), inhibits apoptosis and necrosis of developing neurons exposed acutely to ethanol (EtOH). The present study shows that the protective mechanisms of PYC in EtOH‐exposed postnatal day 9 cerebellar granule cells (P9 CGCs) include (1) reduction of reactive oxygen species (ROS) production; (2) counteraction of suppressed copper/zinc superoxide dismutase (Cu/Zn SOD) and glutathione peroxidase/reductase (GSH‐Px/GSSG‐R) system activities; (3) upregulation of Cu/Zn SOD protein expression; (4) mitigation of the EtOH‐mediated exacerbation of catalase (CAT) activity; and, (5) specific binding and inhibition of active caspase‐3. These results indicate that the mechanisms by which PYC antagonizes EtOH‐induced oxidative stress include oxidant scavenging and modulation of endogenous, cellular proteins. Using findings from the present and previous studies, a model delineating the mechanisms of EtOH effects on the system of antioxidant enzymes in developing CGCs is presented. © 2004 Wiley Periodicals, Inc. J Neurobiol, 2004
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影响因子:
3.4
作者:
R. Pastor;C. Sanchis‐Segura;C. Aragón
通讯作者:
C. Aragón
DOI:
10.1002/neu.10311
发表时间:
2004-06-01
期刊:
JOURNAL OF NEUROBIOLOGY
影响因子:
--
作者:
Siler-Marsiglio, KI;Shaw, G;Heaton, MB
通讯作者:
Heaton, MB
DOI:
--
发表时间:
2000
期刊:
Biochimica et Biophysica Acta
影响因子:
--
作者:
M. Nardini;C. Scaccini;L. Packer;F. Virgili
通讯作者:
F. Virgili
影响因子:
2.3
作者:
B. G. Devi;S. Schenker;B. Mazloum;G. Henderson
通讯作者:
G. Henderson
影响因子:
--
作者:
C. Pippenger;Richard W. Browne;Donald Armstrong
通讯作者:
Donald Armstrong