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Oxindole-Schiff base copper(II) complexes interactions with human serum albumin: Spectroscopic, oxidative damage, and computational studies
(ELSEVIER SCIENCE INC, 2009)
CD and EPR were used to characterize interactions of oxindole-Schiff base copper(II) complexes with human serum albumin (HSA). These imine ligands form very stable complexes with copper, and can efficiently compete for ...
Isolation of Brazilian marine fungi capable of growing on DDD pesticide
(SPRINGER, 2011)
The fungi Aspergillus sydowii Ce15, Aspergillus sydowii Ce19, Aspergillus sydowii Gc12, Bionectria sp. Ce5, Penicillium miczynskii Gc5, Penicillium raistrickii Ce16 and Trichoderma sp. Gc1, isolated from marine sponges ...
Superoxide radical protects liposome-contained cytochrome c against oxidative damage promoted by peroxynitrite and free radicals
(ELSEVIER SCIENCE INC, 2009)
The effects of nitrosative species on cyt c structure and peroxidase activity were investigated here in the presence of O(2)(center dot-) and anionic and zwitterionic vesicles. Nitrosative species were generated by ...
Detection and Characterization of Cholesterol-Oxidized Products Using HPLC Coupled to Dopant Assisted Atmospheric Pressure Photoionization Tandem Mass Spectrometry
(AMER CHEMICAL SOC, 2010)
Oxidation of cholesterol (Ch) by a variety of reactive oxygen species gives rise mainly to hydroperoxides and aldehydes. Despite the growing interest in Ch-oxidized products, the detection and characterization of these ...
Polymethine cyanine dyes in beta-cyclodextrin solution: multiple equilibria and chemical oxidation
(JOHN WILEY & SONS LTD, 2010)
Absorption and fluorescence spectroscopy, electrochemical techniques, and semiempirical calculations were employed to characterize the multiple complexation equilibria between two polymethine cyanine dyes (IR-786 and ...
Redox regulation of the mitochondrial K(ATP) channel in cardioprotection
(ELSEVIER SCIENCE BV, 2011)
The mitochondrial ATP-sensitive potassium channel (mK(ATP)) is important in the protective mechanism of ischemic preconditioning (IPC). The channel is reportedly sensitive to reactive oxygen and nitrogen species, and the ...
Sugarcane spirit extracts of oak and Brazilian woods: antioxidant capacity and activity
(SPRINGER, 2008)
Sugarcane spirit extracts of six different Brazilian woods for potential use in manufacturing aging casks were compared with similar extracts of five oak samples from different geographic origin and heat treatment regarding: ...
Cardiovascular Disease Parameters in Periodontitis
(AMER ACAD PERIODONTOLOGY, 2009)
Background: Recently, there has been an increasing in the impact of oral health on atherosclerosis and subsequent cardiovascular disease. The aim of this study is to investigate the association between chronic periodontitis ...
Preparation and characterization of the novels terpolymers of poly-{trans-[RuCl(2)(vpy)(4)]-styrene-divinylbenzene} and styrene-divinylbenzene-vinylpiridine impregnated with silver nanoparticles
(SPRINGER, 2008)
This paper reports the preparation and characterization of poly-{trans-[RuCl(2)(vpy)(4)]-styrene-divinylbenzene} and styrene-divinylbenzene-vinylpiridine filled with nanosilver. Theses materials were synthesized by non ...
Integrated biomarker responses as environmental status descriptors of a coastal zone (Sao Paulo, Brazil)
(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2011)
Sao Paulo state (Brazil) has one of the most overpopulated coastal zones in South America, where previous studies have already detected sediment and water contamination. However, biological-based monitoring considering ...