The mechanism of (R,R) ZX-5 on increasing NO release.

The mechanism of (R,R) ZX-5 on increasing NO release.
复制标题

DOI:
10.3390/ijms11093323
复制
发表时间:
2010-09-15
影响因子:
5.6
通讯作者:
Shen Z
Shen Z
中科院分区:
生物学2区
文献类型:
--
作者:
Xu HM;Wei J;Pan L;Lin H;Wang W;Zhang Y;Shen Z

文献摘要

参考文献

被引文献

相似文献

在新西兰白色兔中,(R,R)ZX-5已被证明对脉络膜血流具有积极作用,而不影响巩膜和睫状体。本研究旨在探讨(R,R)ZX-5改善脉络膜血流量和促进NO生成的机制。采用Western blot法检测内皮细胞eNOS、p-eNOS、AKT和Erk 1/2的表达。采用RT-PCR法检测iNOS和eNOS mRNA水平,采用eNOS活性测定法检测(R,R)ZX-5对NO生成的影响。我们发现(R,R)ZX-5上调eNOS和iNOS蛋白表达,增加NO产生,降低ERK和Akt蛋白水平。因此,(R,R)ZX-5可能通过增加NO的产生而促进新西兰白色兔的脉络膜血流,而不影响虹膜或睫状体中的血流。这些结果表明,(R,R)ZX-5可能起到治疗和预防黄斑变性(AMD)的作用。
(R,R) ZX-5 has been proven to have positive effects on choroidal blood flow without affecting the sclera and ciliary bodies in New Zealand white rabbits. This study was designed to investigate the mechanisms of (R,R) ZX-5 on improving the choroidal blood flow and promoting NO production. HUVECs (human umbilical vein endothelial cells) were used to determine the production of eNOS, p-eNOS, AKT and Erk1/2 by Western blot analysis. iNOS and eNOS mRNA levels were investigated by RT-PCR and the effect of (R,R) ZX-5 on NO production were determined by eNOS activity assay. We found (R,R) ZX-5 upregulated protein expression of eNOS and iNOS, increased NO production, and reduced ERK and Akt protein level. Therefore, (R,R) ZX-5 may promote the choroidal blood flow in New Zealand white rabbits without affecting the blood flow in the iris or ciliary bodies via increasing NO production. These results suggest that (R,R) ZX-5 may function to cure and prevent Age-related macular degeneration (AMD).
DOI: 10.1161/01.hyp.0000035522.63647.d3
发表时间: 2002-11-01
期刊: HYPERTENSION
影响因子: 8.3
作者:
Goetze, S;Bungenstock, A;Gräfe, M
通讯作者: Gräfe, M
DOI: 10.1006/bbrc.2001.4682
发表时间: 2001-04-13
影响因子: 3.1
作者:
Cha, MS;Lee, MJ;Kwak, JY
通讯作者: Kwak, JY
DOI: 10.1042/bj20060371
发表时间: 2006-09-01
影响因子: 4.1
作者:
Cale, Jacqueline M.;Bird, An M.
通讯作者: Bird, An M.
DOI: 10.1089/108076803321908365
发表时间: 2003-06-01
影响因子: 2.3
作者:
Xuan, B;Xu, XR;Peng, SX
通讯作者: Peng, SX
DOI: 10.1074/jbc.m005116200
发表时间: 2000-09-29
影响因子: 4.8
作者:
Bernier, SG;Haldar, S;Michel, T
通讯作者: Michel, T