scholarly journals Role of quercetin in the prevention and treatment of diseases: Mini review

2018 ◽  
Vol 5 (11) ◽  
pp. 647-656 ◽  
Author(s):  
Nathan Isaac Dibal ◽  
Sani Hyedima Garba ◽  
Tamunotonye Watson Jacks
Keyword(s):  
Oxidative Stress ◽  
Selection Criteria ◽  
Fruits And Vegetables ◽  
Kidney Diseases ◽  
Plant Origin ◽  
Treatment And Prevention ◽  
Naturally Occurring ◽  
Prevention And Treatment ◽  
Internet Databases

Quercetin is the most abundant flavonoid and one of the most important antioxidant of plant origin. The aim of the review was to describe quercetin and its role in the prevention and treatment of diseases. Articles were searched from internet databases using the following search words; quercetin, oxidative stress, quercetin and liver disease, quercetin and kidney disease, quercetin and hyperglycemia. The articles that met the selection criteria were used to describe quercetin and its role in the prevention and treatment of different diseases. The result showed that flavonoids are generally found at higher concentrations in outer layers of fruits and vegetables, onion has more quercetin than blackcurrants, broccoli, black grapes and apple. Quercetin and quercetin rich diets are used in the treatment and prevention of hyperglycemia, cardiovascular and kidney diseases, liver damage and nervous system disorders. In conclusion, quercetin is a naturally occurring flavonoid, more abundant in fruits and vegetables and are used in the treatment and prevention of many diseases.

scholarly journals The Anti-Neuroinflammatory Role of Anthocyanins and Their Metabolites for the Prevention and Treatment of Brain Disorders

2020 ◽  
Vol 21 (22) ◽  
pp. 8653
Author(s):  
Joana F. Henriques ◽  
Diana Serra ◽  
Teresa C. P. Dinis ◽  
Leonor M. Almeida
Keyword(s):  
Neurological Disorders ◽  
Fruits And Vegetables ◽  
Molecular Mechanisms ◽  
Brain Inflammation ◽  
Brain Diseases ◽  
Naturally Occurring ◽  
Pathological Conditions ◽  
Promising Strategy ◽  
Prevention And Treatment

Anthocyanins are naturally occurring polyphenols commonly found in fruits and vegetables. Numerous studies have described that anthocyanin-rich foods may play a crucial role in the prevention and treatment of different pathological conditions, which have encouraged their consumption around the world. Anthocyanins exhibit a significant neuroprotective role, mainly due to their well-recognized antioxidant and anti-inflammatory properties. Neuroinflammation is an intricate process relevant in both homeostatic and pathological circumstances. Since the progression of several neurological disorders relies on neuroinflammatory process, targeting brain inflammation has been considered a promising strategy in those conditions. Recent data have shown the anti-neuroinflammatory abilities of many anthocyanins and of their metabolites in the onset and development of several neurological disorders. In this review, it will be discussed the importance and the applicability of these polyphenolic compounds as neuroprotective agents and it will be also scrutinized the molecular mechanisms underlying the modulation of neuroinflammation by these natural compounds in the context of several brain diseases.

scholarly journals Urotensin-II: More Than a Mediator for Kidney

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Ayşe Balat ◽  
Mithat Büyükçelik
Keyword(s):  
Oxidative Stress ◽  
Transforming Growth Factor ◽  
Kidney Diseases ◽  
Active Role ◽  
Renal Physiology ◽  
Urotensin Ii ◽  
Glomerular Diseases ◽  
Stress Mediators ◽  
And Oxidative Stress

Human urotensin-II (hU-II) is one of the most potent vasoconstrictors in mammals. Although both hU-II and its receptor, GPR14, are detected in several tissues, kidney is a major source of U-II in humans. Recent studies suggest that U-II may have a possible autocrine/paracrine functions in kidney and may be an important target molecule in studying renal pathophysiology. It has several effects on tubular transport and probably has active role in renal hemodynamics. Although it is an important peptide in renal physiology, certain diseases, such as hypertension and glomerulonephritis, may alter the expression of U-II. As might be expected, oxidative stress, mediators, and inflammation are like a devil's triangle in kidney diseases, mostly they induce each other. Since there is a complex relationship between U-II and oxidative stress, and other mediators, such as transforming growth factorβ1 and angiotensin II, U-II is more than a mediator in glomerular diseases. Although it is an ancient peptide, known for 31 years, it looks like that U-II will continue to give new messages as well as raising more questions as research on it increases. In this paper, we mainly discuss the possible role of U-II on renal physiology and its effect on kidney diseases.

scholarly journals The Role of Histone Acetylation and the Microbiome in Phytochemical Efficacy for Cardiovascular Diseases

2020 ◽  
Vol 21 (11) ◽  
pp. 4006
Author(s):  
Levi W. Evans ◽  
Maheshi Athukorala ◽  
Kristina Martinez-Guryn ◽  
Bradley S. Ferguson
Keyword(s):  
Cardiovascular Diseases ◽  
Histone Acetylation ◽  
Fruits And Vegetables ◽  
Financial Burden ◽  
Epigallocatechin Gallate ◽  
Mechanisms Of Action ◽  
Global Changes ◽  
Treatment And Prevention ◽  
The Impact

Cardiovascular diseases (CVD) are the main cause of death worldwide and create a substantial financial burden. Emerging studies have begun to focus on epigenetic targets and re-establishing healthy gut microbes as therapeutic options for the treatment and prevention of CVD. Phytochemicals, commonly found in fruits and vegetables, have been shown to exert a protective effect against CVD, though their mechanisms of action remain incompletely understood. Of interest, phytochemicals such as curcumin, resveratrol and epigallocatechin gallate (EGCG) have been shown to regulate both histone acetylation and microbiome re-composition. The purpose of this review is to highlight the microbiome–epigenome axis as a therapeutic target for food bioactives in the prevention and/or treatment of CVD. Specifically, we will discuss studies that highlight how the three phytochemicals above alter histone acetylation leading to global changes in gene expression and CVD protection. Then, we will expand upon these phytochemicals to discuss the impact of phytochemical–microbiome–histone acetylation interaction in CVD.

Chronic hypoxia aggravates renal injury via suppression of Cu/Zn-SOD: a proteomic analysis

2008 ◽  
Vol 294 (1) ◽  
pp. F62-F72 ◽  
Author(s):  
Daisuke Son ◽  
Ichiro Kojima ◽  
Reiko Inagi ◽  
Makiko Matsumoto ◽  
Toshiro Fujita ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Renal Injury ◽  
Proteomic Analysis ◽  
Chronic Hypoxia ◽  
Kidney Diseases ◽  
Pcr Analysis ◽  
Tubulointerstitial Injury ◽  
Tnf Α

Accumulating evidence suggests a pathogenic role of chronic hypoxia in various kidney diseases. Chronic hypoxia in the kidney was induced by unilateral renal artery stenosis, followed 7 days later by observation of tubulointerstitial injury. Proteomic analysis of the hypoxic kidney found various altered proteins. Increased proteins included lipocortin-5, calgizzarin, ezrin, and transferrin, whereas the decreased proteins were α2u-globulin PGCL1, eukaryotic translation elongation factor 1α2, and Cu/Zn superoxide dismutase (SOD1). Among these proteins, we focused on Cu/Zn-SOD, a crucial antioxidant. Western blot analysis and real-time quantitative PCR analysis confirmed the downregulation of Cu/Zn-SOD in the chronic hypoxic kidney. Furthermore, our laser capture microdissection system showed that the expression of Cu/Zn-SOD was predominant in the tubulointerstitium and was decreased by chronic hypoxia. The tubulointerstitial injury estimated by histology and immunohistochemical markers was ameliorated by tempol, a SOD mimetic. This amelioration was associated with a decrease in levels of the oxidative stress markers 4-hydroxyl-2-nonenal and nitrotyrosine. Our in vitro studies utilizing cultured tubular cells revealed a role of TNF-α in downregulation of Cu/Zn-SOD. Since the administration of anti-TNF-α antibody ameliorated Cu/Zn-SOD suppression, TNF-α seems to be one of the suppressants of Cu/Zn-SOD. In conclusion, our proteomic analysis revealed a decrease in Cu/Zn-SOD, at least partly by TNF-α, in the chronic hypoxic kidney. This study, for the first time, uncovered maladaptive suppression of Cu/Zn-SOD as a mediator of a vicious cycle of oxidative stress and subsequent renal injury induced by chronic hypoxia.

scholarly journals OXIDATIVE STRESS AS THE PATHOPHYSIOLOGICAL MECHANISMS IN THE DEVELOPMENT OF DIABETIC MACROANGIOPATHY AND PERSPECTIVES OF ITS CORRECTION BY FLAVONOIDS

2016 ◽  
Vol 57 (3) ◽  
pp. 91-99
Author(s):  
N. I. Gorbenko ◽  
O. V. Ivanova ◽  
A. Y. Borikov
Keyword(s):  
Oxidative Stress ◽  
Insulin Resistance ◽  
Retrospective Analysis ◽  
Cardiometabolic Risk ◽  
Insulin Resistance Syndrome ◽  
Natural Antioxidants ◽  
Diabetic Macroangiopathy ◽  
Prevention And Treatment ◽  
Main Factors

The review elucidates the role of oxidative stress in the pathogenesis of diabetic cardiovascularcomplications. It was analyzed the main reasons for excessive production of reactive oxygen speciesin the conditions of hyperglycemia and the basic mechanisms of their damaging effect on the morphological and functional state of the myocardium and endothelium. It was considered theperspective of natural antioxidants, such as flavonoids, for the prevention and treatment of diabeticmacroangiopathy. It was made a retrospective analysis of own researches devoted to the quercetin effect on the main factors of cardiometabolic risk at the insulin resistance syndrome

scholarly journals Tyrosol May Prevent Obesity by Inhibiting Adipogenesis in 3T3-L1 Preadipocytes

2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Francesca Pacifici ◽  
Carolina Lane Alves Farias ◽  
Silvia Rea ◽  
Barbara Capuani ◽  
Alessandra Feraco ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Early Stage ◽  
Virgin Olive Oil ◽  
Extra Virgin Olive Oil ◽  
Sirtuin 1 ◽  
Treatment And Prevention ◽  
Cycle Arrest ◽  
Inflammatory State ◽  
And Oxidative Stress

Tyrosol (TR), a major polyphenol found in extra virgin olive oil (EVOO), exerts several antioxidant effects. However, only scarce evidences are present regarding its activity on adipocytes and obesity. This study evaluated the role of TR in adipogenesis. Murine 3T3-L1 preadipocytes were incubated with TR (300 and 500 μM), and TR administration inhibited adipogenesis by downregulation of several adipogenic factors (leptin and aP2) and transcription factors (C/EBPα, PPARγ, SREBP1c, and Glut4) and by modulation of the histone deacetylase sirtuin 1. After complete differentiation, adipocytes treated with 300 and 500 μM TR showed a reduction of 20% and 30% in lipid droplets, respectively. Intracellular triglycerides were significantly reduced after TR treatment ( p < 0.05 ). Mature adipocytes treated with TR at 300 and 500 μM showed a marked decrease in the inflammatory state and oxidative stress as shown by the modulation of specific biomarkers (TNF, IL6, ROS, and SOD2). TR treatment also acted on the early stage of differentiation by reducing cell proliferation (~40%) and inducing cell cycle arrest during Mitotic Expansion Clonal (first 48 h of differentiation), as shown by the increase in both S1 phase and p21 protein expression. We also showed that TR induced lipolysis by activating the AMPK-ATGL-HSL pathway. In conclusion, we provided evidence that TR reduces 3T3-L1 differentiation through downregulation of adipogenic proteins, inflammation, and oxidative stress. Moreover, TR may trigger adipose tissue browning throughout the induction of the AMPK-ATGL-UCP1 pathway and, subsequently, may have promise as a potential therapeutic agent for the treatment and prevention of obesity.

Prenatal stress and its role in children's pathology: historical aspects and the current status of the question (review of literature)

2020 ◽  
Vol 24 (3) ◽  
pp. 28-41
Author(s):  
A. A. Vyalkova ◽  
B. A. Frolov ◽  
E. V. Savelyeva ◽  
S. A. Chesnokova
Keyword(s):  
Oxidative Stress ◽  
Kidney Diseases ◽  
Scientific Evidence ◽  
Current Status ◽  
Stress Reactions ◽  
Metabolic Disturbances ◽  
Negative Effects ◽  
Adaptation Mechanism ◽  
Increased Risk

The article presents an analysis of fundamental data on the problem of stress and its role in the development of stressful diseases. Scientific evidence on the role of stress in childhood pathology indicates the extreme pathogenetic significance of stress. It is proved that stress has three interconnected faces: stress as a link in the adaptation mechanism, stress as a link in the pathogenesis of diseases and adaptation to stressful situations as a natural prevention of stressful diseases. The scientific substantiation of the main evolutionarily determined role of stress as an adaptation link indicates the possibility of acquiring some degree of resistance to stressful situations. Prevention of reducing the excess of stress reactions and reducing the possibility of its transformation into a link in the pathogenesis of diseases limits the complex of mechanisms designated as a stress-limiting system. Important information is the development and coordination of the stress response, which is provided by a complex set of mechanisms of neuroendocrine regulation, united by the concept of “stress-implementing system”. The most common forms of stress are fetal hypoxia, metabolic disturbances, and toxic effects leading to uncontrolled oxidative stress at the cellular and tissue levels with the development of pregnancy complications, intrauterine growth retardation syndrome (IUGR), persistent changes and pathological conditions. As the fetus grows, the flow of oxygen and nutrients from the mother through the placenta increases, which is accompanied by an increased risk of the formation of pathologies of the brain, heart, liver and kidneys with the development of a multi-organ pathology in the subsequent life. It has been proven that oxidative stress combined with stress of malnutrition in the prenatal period increases the risk of endocrinopathies, kidney diseases, and a number of other chronic diseases in the adult state. In practical terms, the negative effects of stress are of particular interest. Early detection of psychosocial and sympathomimetic factors causing stress is the basis for the prevention of childhood pathology.

Prevention and management of type II diabetes chronic complications: the role of polyphenols (Mini-Review)

2021 ◽  
Vol 28 ◽  
Author(s):  
Arianna Pani ◽  
Francesco Baratta ◽  
Daniele Pastori ◽  
Mattia Coronati ◽  
Francesco Scaglione ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Endothelial Damage ◽  
Chronic Complications ◽  
Complications Of Diabetes ◽  
Search Terms ◽  
Prevention And Treatment ◽  
Constant State ◽  
Treatment Of Diabetes ◽  
Ischemic Events

: The numerous complications of diabetes may be at least in part generated by the oxidative stress associated with the constant state of hyperglycemia. Polyphenols are plant based secondary metabolites that have high potentials in the prevention and treatment of some diseases, in particular those that involve oxidative stress, such as complications of diabetes. The purpose of this narrative review is to show the main evidence regarding the role of polyphenols in treating and preventing these complications. For the bibliographic research, the papers published up to March 15, 2021 were considered and the search terms included words relating to polyphenols, their classes and some more known compounds, in association with the complications of diabetes. There are numerous studies showing how polyphenols are active against endothelial damage induced by diabetes, oxidative stress and hyperinflammatory states that are at the origin of the complications of diabetes. Compounds such as flavonoids, but also anthocyanins, stilbenes or lignans slow the progression of kidney damage, prevent ischemic events and diabetic nephropathy. Many of these studies are preclinical, in cellular or animal models. The role of polyphenols in the prevention and treatment of diabetes complications is undoubtedly promising. However, more clinical trials need to be implemented to understand the real effectiveness of these compounds.

scholarly journals Antioxidants from Plants Protect against Skin Photoaging

2018 ◽  
Vol 2018 ◽  
pp. 1-11 ◽  
Author(s):  
Ganna Petruk ◽  
Rita Del Giudice ◽  
Maria Manuela Rigano ◽  
Daria Maria Monti
Keyword(s):  
Oxidative Stress ◽  
Fruits And Vegetables ◽  
Uv Light ◽  
Cell Metabolism ◽  
Winning Strategy ◽  
Sun Exposure ◽  
Dietary Antioxidants ◽  
Age Related ◽  
Skin Photoaging

Exposure to UV light triggers the rapid generation and accumulation of reactive oxygen species (ROS) in skin cells, with consequent increase in oxidative stress and thus in photoaging. Exogenous supplementation with dietary antioxidants and/or skin pretreatment with antioxidant-based lotions before sun exposure might be a winning strategy against age-related skin pathologies. In this context, plants produce many secondary metabolites to protect themselves from UV radiations and these compounds can also protect the skin from photoaging. Phenolic compounds, ascorbic acid and carotenoids, derived from different plant species, are able to protect the skin by preventing UV penetration, reducing inflammation and oxidative stress, and influencing several survival signalling pathways. In this review, we focus our attention on the double role of oxidants in cell metabolism and on environmental and xenobiotic agents involved in skin photoaging. Moreover, we discuss the protective role of dietary antioxidants from fruits and vegetables and report their antiaging properties related to the reduction of oxidative stress pathways.

scholarly journals The role of oxidative stress on the pathophysiology of metabolic syndrome

2017 ◽  
Vol 63 (1) ◽  
pp. 85-91 ◽  
Author(s):  
Fabiane Valentini Francisqueti ◽  
◽  
Lidiana Camargo Talon Chiaverini ◽  
Klinsmann Carolo dos Santos ◽  
Igor Otávio Minatel ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Metabolic Syndrome ◽  
Fruits And Vegetables ◽  
Eating Habits ◽  
Antioxidant Defense System ◽  
Fat Deposits ◽  
High Prevalence ◽  
Healthy Eating Habits ◽  
Speed Up

Summary Metabolic syndrome (MetS) has a high prevalence around the world. Considering the components used to classify MetS, it is clear that it is closely related to obesity. These two conditions begin with an increase in abdominal adipose tissue, which is metabolically more active, containing a greater amount of resident macrophages compared to other fat deposits. Abdominal adiposity promotes inflammation and oxidative stress, which are precursors of various complications involving MetS components, namely insulin resistance, hypertension and hyperlipidemia. One way to block the effects of oxidative stress would be through the antioxidant defense system, which offsets the excess free radicals. It is known that individuals with metabolic syndrome and obesity have high consumption of fats and sugars originated from processed foods containing high levels of sodium as well as low intake of fruits and vegetables, thus maintaining a state of oxidative stress, that can speed up the onset of MetS. Healthy eating habits could prevent or delay MetS by adding antioxidant-rich foods into the diet.

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