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Bachelor thesis . 2023
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Bachelor thesis . 2023
License: CC BY NC ND
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Bachelor thesis
License: CC BY NC ND
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Efectos de las proantocianidinas sobre las alteraciones producidas por la aldosterona en un modelo in vitro de hipertrofia cardiaca

Effects of proanthocyanidins on the alterations produced by aldosterone in an in vitro model of cardiac hypertrophy
Authors: Martín Wieringa, Sara;

Efectos de las proantocianidinas sobre las alteraciones producidas por la aldosterona en un modelo in vitro de hipertrofia cardiaca

Abstract

[ES] La aldosterona presenta efectos oxidantes, pro-inflamatorios y pro-fibróticos que favorecen el desarrollo de hipertrofia cardiaca (HC), cuyo agravamiento y mantenimiento desemboca en la pérdida de la correcta función del corazón. Por ello, su prevención y tratamiento son vitales. A pesar de que existen tratamientos en la actualidad, es necesario buscar nuevas sustancias que ayuden a frenar su progresión. En este sentido, la utilización de los polifenoles como potentes antioxidantes en el tratamiento de la HC ha cobrado gran importancia. El objetivo de este trabajo es estudiar los efectos de las proantocianidinas, sobre las alteraciones producidas por la aldosterona en un modelo in vitro de HC. Para ello se estimularon cardiomioblastos H9c2 de rata con aldosterona y se co-incubaron con proantocianidinas. Se evaluó la supervivencia celular y la expresión génica de mediadores apoptóticos y antioxidantes. La estimulación con aldosterona redujo la supervivencia celular mientras que la co-incubación con proantocianidinas la normalizó. Además, la expresión de la proteína antiapoptótica Bcl-2 y de enzimas antioxidantes disminuyó con aldosterona y se restauró con las proantocianidinas. Por tanto, podemos concluir que las proantocianidinas parecen estar controlando el aumento de estrés oxidativo inducido por la aldosterona previniendo así la apoptosis y aumentando la supervivencia celular en células H9c2

[EN] Aldosterone has oxidizing, pro-inflammatory and pro-fibrotic effects that favor the development of cardiac hypertrophy (HC), whose aggravation and maintenance results in the loss of correct heart function. Prevention and treatment are therefore vital. Although there are currently treatments, it is necessary to look for new substances that help slow their progression. In this sense, the use of polyphenols as potent antioxidants in the treatment of HC has become very important. The aim of this work is to study the effects of proanthocyanidins on aldosterone alterations in an in vitro model of HC. For this purpose, rat cardiomyoblasts H9c2 were stimulated with aldosterone and co-incubated with proanthocyanidins. Cell survival and gene expression of apoptotic and antioxidant mediators were evaluated. Aldosterone stimulation reduced cell survival while co-incubation with proanthocyanidins normalized it. In addition, the expression of the antiapoptotic protein Bcl-2 and antioxidant enzymes decreased with aldosterone and was restored with proanthocyanidins. Therefore, we can conclude that proanthocyanidins seem to be controlling the increase in oxidative stress induced by aldosterone, thus preventing apoptosis and increasing cell survival in H9c2 cells

28 páginas, ilustraciones, tabla, referencias bibliográficas

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Spain
Related Organizations
Keywords

Medicina. Salud, Proantocianidinas, Biología, 2407 Biología Celular, 2415 Biología Molecular, Apoptosis, Estrés oxidativo, 3207.04 Patología Cardiovascular, Aldosterona, Cardiac hypertrophy, Oxidative stress, Hipertrofia cardiaca, Proanthocyanidins, Aldosterone, 3206 Ciencias de la Nutrición

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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