Person:
Ortega Hernández-Agero, María Teresa

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First Name
María Teresa
Last Name
Ortega Hernández-Agero
URI
https://hdl.handle.net/20.500.14352/77579
Affiliation
Universidad Complutense de Madrid
Faculty / Institute
Farmacia
Department
Farmacología, Farmacognosia y Botánica
Area
Farmacología
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2008 - 20092
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    Study of red wine neuroprotection on astrocytes
    (Plant Foods for Human Nutrition, 2009) Gómez-Serranillos Cuadrado, María Pilar; Martín, Sara; Ortega Hernández-Agero, María Teresa; Palomino Ruiz-Poveda, Olga María; Prodanov, Marín; Vacas, Visitación; Hernández, Teresa; Estrella, Isabel; Carretero Accame, María Emilia
    Phenolic composition of wine depends not only on the grape variety from which it is made, but on some external factors such as winemaking technology. Red wine possesses the most antioxidant effect because of its high polyphenolic content. The aim of this work is to study for the first time, the neuroprotective activity of four monovarietal Spanish red wines (Merlot (ME), Tempranillo (T), Garnacha (G) and Cabernet-Sauvignon (CS)) through its antioxidant ability, and to relate this neuroprotection to its polyphenolic composition, if possible. The wine effect on neuroprotection was studied through its effect as free radical scavenger against FeSO4, H2O2 and FeSO4 + H2O2. Effect on cell survival was determined by 3(4,5-dimethyltiazol-2-il)-2,5-diphenyltetrazolium reduction assay (MTT) and lactate dehydrogenase (LDH) release assay on astrocytes cultures. Results showed that most of the studied wine varieties induced neuroprotection through their antioxidant ability in astrocytes, Merlot being the most active; this variety is especially rich in phenolic compounds, mainly catechins and oligomeric proanthocyanidins. Our results show that red wine exerts a protection against oxidative stress generated by different toxic agents and that the observed neuroprotective activity is related to their polyphenolic content.
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    Influence of grape variety and their phenolic composition on vasorelaxing activity of young red wines
    (European Food Research and Technology, 2008) Ortega Hernández-Agero, María Teresa; De la Hera, Elena; Carretero Accame, María Emilia; Gómez-Serranillos Cuadrado, María Pilar; Naval López, María Victoria; Villar Del Fresno, Angel María; Prodánov Prodánov, Marín; Vacas, Visitación; Arroyo Casado, Teresa; Hernández García, María Teresa; Estrella Pedrola, María Isabel
    Red wine has been reported to exert beneficial effects in preventing cardiovascular diseases probably due to their polyphenols constituents. The vasorelaxant capacity and phenolic composition of four monovarietal young red wines Merlot, Tempranillo, Garnacha and Cabernet-Sauvignon obtained from grapes from 2004 vintage, cultivated under the same climatic and agricultural conditions, wine-making technology and storage conditions, were determined using vascular reactivity assay in rat aortic and high-performance liquid chromatography, respectively. Primary cultures of vascular smooth muscle cells from Wistar rats were also used to evaluate their survival prevention activity as well. Every studied wine present vasorelaxation effect, but the higher value corresponds to the analyzed Merlot wine, especially rich in phenolic compounds, mainly catechins and oligomeric proanthocyanidins and anthocyanin glycosides. This study further demonstrated previous investigations about the phenolic composition of wines relation with their vasorelaxation activity