| Literature DB >> 17141326 |
Fabiana de Souza Oliveira1, Kleber Queiroz Ferreira, Daniella Bonaventura, Luziane M Bendhack, Antonio Claudio Tedesco, Sergio de P Machado, Elia Tfouni, Roberto Santana da Silva.
Abstract
Irradiation of trans-[RuCl(cyclam)(NO)](2+), cyclam is 1,4,8,11-tetraazacyclotetradecane, at pHs 1-7.4, with near UV light results in the release of NO and formation of trans-[Ru(III)Cl(OH)(cyclam)](+) with pH dependent quantum yields (from approximately 0.01 to 0.16 mol Einstein(-1)) lower than that for trans-[RuCl([15]aneN(4))(NO)](2+), [15]aneN(4) is 1,4,8,12-tetaazacyclopentadecane, (0.61 mol Einstein(-1)). After irradiation with 355 nm light, the trans-[RuCl([15]aneN(4))(NO)](2+) induces relaxation of the aortic ring, whereas the trans-[RuCl(cyclam)(NO)](2+) complex does not. The relaxation observed with trans-[RuCl([15]aneN(4))(NO)](2+) is consistent with a larger quantum yield of release of NO from this complex.Entities:
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Year: 2006 PMID： 17141326 DOI： 10.1016/j.jinorgbio.2006.10.008
Source DB: PubMed Journal: J Inorg Biochem ISSN： 0162-0134 Impact factor: 4.155