Browsing by Author "López Alarcón, Camilo"
Now showing items 1-7 of 7
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Cruces, E.; Rojas Lillo, Y.; Ramírez Kushel, E.; Atala, E.; López Alarcón, Camilo; Lissi Gervaso, Eduardo A.; Gómez, I. (Springer Science+Business, 2016)Preservation, storage, and safe transport of samples are key factors affecting brown algal phlorotannin (phenolics) quantification, their extraction yield, and antioxidant activity. This is especially relevant when field ...
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Speisky Cosoy, Hernán; Gómez, Maritza; Carrasco Pozo, Catalina; Pastene, Edgar; López Alarcón, Camilo; Olea Azar, Claudio (PERGAMON-ELSEVIER SCIENCE LTD, 2008-07-01)Cu2+ ions and GSH molecules interact to swiftly form the complex Cu(I)–glutathione. We investigated the potential capacity of such complex to reduce molecular oxygen. The addition of SOD to a solution containing Cu(I)– ...
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Aliaga, Margarita E.; Carrasco Pozo, Catalina; López Alarcón, Camilo; Speisky Cosoy, Hernán (Springer, 2010)Cu2? ions and reduced glutathione (GSH) swiftly interact to form the physiologically occurring Cu(I)–[GSH]2 complex. Prompted by the recently reported ability of this complex to generate superoxide radicals from molecular ...
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Cu(II)–disulfide complexes display simultaneous superoxide dismutase- and catalase-like activities Aliaga, Margarita E.; Andrade Acuña, Daniela; López Alarcón, Camilo; Sandoval Acuña, Cristián; Speisky Cosoy, Hernán (Elsevier, 2013)Superoxide is a potentially toxic by-product of cellular metabolism.We have addressed here the in vitro ability of complexes formed between copper(II) ions and various biologically-occurring disulfides (RSSR: oxidized ...
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Carrasco Pozo, Catalina; Álvarez Lueje, Alejandro; Olea Azar, Claudio; López Alarcón, Camilo; Speisky Cosoy, Hernán (SOC EXPERIMENTAL BIOLOGY MEDICINE, 2006-10)Homocysteine (Hcys) has been implicated in various oxidative stress–related disorders. The presence of a thiol on its structure allows Hcys to exert a double-edge redox action. Depending on whether Cu2þions occur ...
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International Regulations of Propolis Quality: Required Assays do not Necessarily Reflect their ... Bridi, Raquel; Montenegro, Gloria; Núñez Quijada, Gabriel; Giordano, Ady; Morán Romero, María Fernanda; Jara Pezoa, Isaac; Speisky Cosoy, Hernán; Atala, Elías; López Alarcón, Camilo (Institute of Food Technologists, 2015)Propolis has been proposed as a polyphenolic-rich natural product potentially able to be used for human consumption or even for medicinal proposes. To guarantee a minimum phenolic and flavonoid content and as consequence ...
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Aliaga, Margarita E.; López Alarcón, Camilo; Bridi, Raquel; Speisky Cosoy, Hernán (Elsevier, 2016)Binding of copper by reduced glutathione (GSH) is generally seen as a mechanism to lower, if not abolish, the otherwise high electrophilicity and redox activity of its free ions. In recent years, however, this concept has ...