Zobrazeno 1 - 10
of 335
pro vyhledávání: '"Eduardo Lissi"'
Publikováno v:
Atmosphere, Vol 6, Iss 12, Pp 1926-1938 (2015)
On 4 and 8 January 2014, at the height of the austral summer, intense wildfires in forests and dry pastures occurred in the Melipilla sector, located about 70 km to the southwest of Santiago, the Chilean capital, affecting more than 6 million inhabit
Externí odkaz:
https://doaj.org/article/cdaff9a498d54a6b9bcfa8f18b057279
Autor:
Estefania Hugo, Jael Reyes, Elisa Montupil, Raquel Bridi, Eduardo Lissi, Ana Denicola, María Angélica Rubio, Camilo López-Alarcón
Publikováno v:
Molecules, Vol 20, Iss 6, Pp 10582-10593 (2015)
In the present work we studied the reaction under gastric conditions of pyrogallol red (PGR), a polyphenolic dye, with nitrous acid (HONO). PGR has been used as a model polyphenol due to its strong UV-visible absorption and its high reactivity toward
Externí odkaz:
https://doaj.org/article/8046ae1b02344fd2afa5080e87dd061b
Autor:
Klas I. Udekwu, Elizabeth Joubert, Eduardo Lissi, Baback Salehani, Akop Yepremyan, Thomas G. Minehan, Camilo López-Alarcón, Nadja Karamehmedovic, Daisy Hjelmqvist, Madeline J. Simpson, Emilio I. Alarcon
Publikováno v:
Molecules, Vol 18, Iss 9, Pp 11264-11280 (2013)
The anti-peroxyl radical quality of two aqueous rooibos infusions and solutions of their most abundant glycosylated polyphenols was evaluated using pyrogallol red and fluorescein-based oxygen radical absorbance ratios. It was observed that the artifi
Externí odkaz:
https://doaj.org/article/eef696c9651d4f808a788790c7ddc16e
Use of Pyrogallol Red and Pyranine as Probes to Evaluate Antioxidant Capacities towards Hypochlorite
Autor:
Fernanda Pérez-Cruz, Contanza Cortés, Elias Atala, Pamela Bohle, Francisco Valenzuela, Claudio Olea-Azar, Hernán Speisky, Alexis Aspée, Eduardo Lissi, Camilo López-Alarcón, Raquel Bridi
Publikováno v:
Molecules, Vol 18, Iss 2, Pp 1638-1652 (2013)
Hypochlorite is a strong oxidant able to induce deleterious effects in biological systems. The goal of this work was to investigate the use of PGR and PYR as probes in assays aimed at evaluating antioxidant activities towards hypochorite and apply it
Externí odkaz:
https://doaj.org/article/5d434cd4ec014edeb64e28c2f55a117b
Autor:
Camilo López-Alarcón, Eduardo Lissi, Carlos David Pessoa-Mahana, Jaime Mella-Raipán, Benjamin Rojano, Max Romero
Publikováno v:
Molecules, Vol 15, Iss 9, Pp 6152-6167 (2010)
The protective effect of different antioxidants and complex mixtures on the consumption of pyrogallol red (PGR) induced by peroxyl radicals was studied in the absence and presence of Triton X-100 micelles. The presence of micelles decreased significa
Externí odkaz:
https://doaj.org/article/abaed8e1c7a24a0d99c96bc4355785c5
Publikováno v:
Biological Research, Vol 40, Iss 2, Pp 155-162 (2007)
The antioxidant effect of 5-Aminosalicylic acid (5-ASA) on copper-mediated LDL oxidation was followed either by the emitted chemiluminiscence (CL) or by UV-vis spectroscopy. 5-ASA addition extends the lag phase in a concentration-dependent manner wit
Externí odkaz:
https://doaj.org/article/47547e2d9c934a9ca790d61048d7a205
Publikováno v:
Biological Research, Vol 37, Iss 2, Pp 287-292 (2004)
A novel procedure for the evaluation of total reactive antioxidant potentials (TRAP) is described. The method is based on the measurement of the bleaching of pyranine by peroxyl radicals. The addition of the antioxidants produces a clear induction ti
Externí odkaz:
https://doaj.org/article/b05d6b69ee764dfa8316f2c414dfeca4
Publikováno v:
Biological Research, Vol 34, Iss 2, Pp 51-73 (2001)
Externí odkaz:
https://doaj.org/article/4d4ef08e7fed4a3e97eb8df779c34d27
Publikováno v:
Revista Cubana de Investigaciones Biomédicas, Vol 19, Iss 3, Pp 213-216 (2000)
En este trabajo se compararon sustancias reactivas al ácido tiobarbitúrico (TBARS) de espermios, actividad de catalasa seminal y sanguínea, luminiscencia urinaria, en pacientes infértiles antes y después de someterse a varicocelectomía. Se enco
Externí odkaz:
https://doaj.org/article/41a3f05a8d0640259ebbaefa6a4744f1
Publikováno v:
Biological Research, Vol 33, Iss 2, Pp 71-77 (2000)
Thrce ditferent methodologies frequently employed to evaluate the indexes that report the antioxidant capabilities of pure compounds and/or complex mixtures of antioxidants are applied to a series of mono- and polyphenols, as well as to two wine (red
Externí odkaz:
https://doaj.org/article/7d03d9e11477482b91823fd28f106947