Curcumin ameliorates arterial dysfunction and oxidative stress with aging.
Curcumin ameliorates arterial dysfunction and oxidative stress with aging.
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DOI:
10.1016/j.exger.2012.10.008
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发表时间:
2013-02
影响因子:
3.9
通讯作者:
Seals, Douglas R.
中科院分区:
文献类型:
--
作者:
Fleenor, Bradley S.;Sindler, Amy L.;Marvi, Natasha K.;Howell, Kate L.;Zigler, Melanie L.;Yoshizawa, Mutsuko;Seals, Douglas R.
We tested the hypothesis that curcumin supplementation would reverse arterial dysfunction and vascular oxidative stress with aging. Young (Y, 4–6 mo) and old (O, 26–28 mo) male C57BL6/N mice were given normal or curcumin supplemented (0.2%) chow for 4 weeks (n = 5–10/group/measure). Large elastic artery stiffness, assessed by aortic pulse wave velocity (aPWV), was greater in O (448 ± 15 vs. 349 ± 15 cm/s) and associated with greater collagen I and advanced glycation end-products and less elastin (all P < 0.05). In O, curcumin restored aPWV (386 ± 15 cm/s), collagen I and AGEs to levels not different vs. Y. Ex vivo carotid artery acetylcholine (ACh)-induced endothelial-dependent dilation (EDD, 79 ± 3 vs. 94 ± 2%), nitric oxide (NO) bioavailability and protein expression of endothelial NO synthase (eNOS) were lower in O (all P < 0.05). In O, curcumin restored NO-mediated EDD (92 ± 2%) to levels of Y. Acute ex vivo administration of the superoxide dismutase (SOD) mimetic TEMPOL normalized EDD in O control mice (93 ± 3%), but had no effect in Y control or O curcumin treated animals. O had greater arterial nitrotyrosine abundance, superoxide production and NADPH oxidase p67 subunit expression, and lower manganese SOD (all P < 0.05), all of which were reversed with curcumin. Curcumin had no effects on Y. Curcumin supplementation ameliorates age-associated large elastic artery stiffening, NO-mediated vascular endothelial dysfunction, oxidative stress and increases in collagen and AGEs in mice. Curcumin may be a novel therapy for treating arterial aging in humans.
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影响因子:
37.8
作者:
Mitchell GF;Hwang SJ;Vasan RS;Larson MG;Pencina MJ;Hamburg NM;Vita JA;Levy D;Benjamin EJ
通讯作者:
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影响因子:
3.3
作者:
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影响因子:
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作者:
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通讯作者:
Yokozawa, Takako
影响因子:
6
作者:
Csiszar, Anna;Labinskyy, Nazar;Ungvari, Zoltan
通讯作者:
Ungvari, Zoltan
影响因子:
2.7
作者:
Ahn, Chan Mug;Park, Byong-Gon;Lee, Seokjoon
通讯作者:
Lee, Seokjoon