scholarly journals Autophagy and oxidative stress in cardiovascular diseases

Author(s):  
Yu Mei ◽  
Melissa D. Thompson ◽  
Richard A. Cohen ◽  
XiaoYong Tong
2015 ◽  
Vol 129 (1) ◽  
pp. 39-48 ◽  
Author(s):  
Andreia Z. Chignalia ◽  
Maria Aparecida Oliveira ◽  
Victor Debbas ◽  
Randal O. Dull ◽  
Francisco R.M. Laurindo ◽  
...  

Testosterone triggers leucocyte migration and oxidative stress, important features in inflammation and in the development of cardiovascular diseases. The mechanisms by which testosterone increase cardiovascular risk are unknown. We describe one pathway whereby testosterone can potentially contribute to vascular disease.


Author(s):  
A. A. Akopyan ◽  
I. D. Strazhesko ◽  
O. N. Tkacheva ◽  
A. P. Yesakova ◽  
I. A. Orlova

In this research we examined studies of gene polymorphisms, associated with cardiovascular diseases through renin-angiotensin-aldosterone system activation (AGT с.521С>Т, AСE Ins>Del), nitric oxide decline (NOS3 с.894G>T), chronic inflammation (TNF -238G>A, MMP9 -1562С>T) and oxidative stress (CYBA c.214Т>С).


2013 ◽  
Vol 140 (3) ◽  
pp. 239-257 ◽  
Author(s):  
Luc Rochette ◽  
Julie Lorin ◽  
Marianne Zeller ◽  
Jean-Claude Guilland ◽  
Luc Lorgis ◽  
...  

2016 ◽  
Vol 2016 ◽  
pp. 1-12 ◽  
Author(s):  
Antonio Mancini ◽  
Chantal Di Segni ◽  
Sebastiano Raimondo ◽  
Giulio Olivieri ◽  
Andrea Silvestrini ◽  
...  

Inflammation and oxidative stress (OS) are closely related processes, as well exemplified in obesity and cardiovascular diseases. OS is also related to hormonal derangement in a reciprocal way. Among the various hormonal influences that operate on the antioxidant balance, thyroid hormones play particularly important roles, since both hyperthyroidism and hypothyroidism have been shown to be associated with OS in animals and humans. In this context, the nonthyroidal illness syndrome (NTIS) that typically manifests as reduced conversion of thyroxine (T4) to triiodothyronine (T3) in different acute and chronic systemic conditions is still a debated topic. The pathophysiological mechanisms of this syndrome are reviewed, together with the roles of deiodinases, the enzymes responsible for the conversion of T4to T3, in both physiological and pathological situations. The presence of OS indexes in NTIS supports the hypothesis that it represents a condition of hypothyroidism at the tissue level and not only an adaptive mechanism to diseases.


2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Vanessa Palermo ◽  
Fulvio Mattivi ◽  
Romano Silvestri ◽  
Giuseppe La Regina ◽  
Claudio Falcone ◽  
...  

In recent years, epidemiological and biochemical studies have shown that eating apples is associated with reduction of occurrence of cancer, degenerative, and cardiovascular diseases. This association is often attributed to the presence of antioxidants such as ascorbic acid (vitamin C) and polyphenols. The substances that hinder the presence of free radicals are also able to protect cells from aging. In our laboratory we used yeast, a unicellular eukaryotic organism, to determinein vivoefficacy of entire apples and their components, such as flesh, skin and polyphenolic fraction, to influence aging and oxidative stress. Our results indicate that all the apple components increase lifespan, with the best result given by the whole fruit, indicating a cooperative role of all apple components.


2009 ◽  
Vol 73 (3) ◽  
pp. 411-418 ◽  
Author(s):  
Yukihito Higashi ◽  
Kensuke Noma ◽  
Masao Yoshizumi ◽  
Yasuki Kihara

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Rossella Bengalli ◽  
Elisabetta Molteni ◽  
Eleonora Longhin ◽  
Magne Refsnes ◽  
Marina Camatini ◽  
...  

Particulate matter (PM) exposure is related to pulmonary and cardiovascular diseases, with increased inflammatory status. The release of the proinflammatory interleukin- (IL-) 1β, is controlled by a dual pathway, the formation of inactive pro-IL-1β, through Toll-like receptors (TLRs) activation, and its cleavage by NLRP3 inflammasome. THP-1-derived macrophages were exposed for 6 h to 2.5 μg/cm2of Milan PM10, and the potential to promote IL-1βrelease by binding TLRs and activating NLRP3 has been examined. Summer PM10, induced a marked IL-1βresponse in the absence of LPS priming (50-fold increase compared to unexposed cells), which was reduced by caspase-1 inhibition (91% of inhibition respect summer PM10-treated cells) and by TLR-2 and TLR-4 inhibitors (66% and 53% of inhibition, resp.). Furthermore, summer PM10increased the number of early endosomes, and oxidative stress inhibition nearly abolished PM10-induced IL-1βresponse (90% of inhibition). These findings suggest that summer PM10contains constituents both related to the activation of membrane TLRs and activation of the inflammasome NLPR3 and that TLRs activation is of pivotal importance for the magnitude of the response. ROS formation seems important for PM10-induced IL-1βresponse, but further investigations are needed to elucidate the molecular pathway by which this effect is mediated.


Author(s):  
Jiamin Li ◽  
Yunxiang Zhou ◽  
Hui Wang ◽  
Jianyao Lou ◽  
Cameron Lenahan ◽  
...  

The recently discovered ferroptosis is a new kind of iron-regulated cell death that differs from apoptosis and necrosis. Ferroptosis can be induced by an oxidative stress response, a crucial pathological process implicated in cardiovascular diseases (CVDs). Accordingly, mounting evidence shows that oxidative stress-induced ferroptosis plays a pivotal role in angio-cardiopathy. To date, the inhibitors and activators of ferroptosis, as well as the many involved signaling pathways, have been widely explored. Among which, epigenetic regulators, molecules that modify the package of DNA without altering the genome, emerge as a highly targeted, effective option to modify the signaling pathway of ferroptosis and oxidative stress, representing a novel and promising therapeutic potential target for CVDs. In this review, we will briefly summarize the mechanisms of ferroptosis, as well as the role that ferroptosis plays in various CVDs. We will also expound the epigenetic regulators of oxidative stress-induced ferroptosis, and the promise that these molecules hold for treating the intractable CVDs.


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