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Epigenetics polyphenols

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https://www.readbyqxmd.com/read/28738770/effects-of-resveratrol-and-other-polyphenols-on-the-most-common-brain-age-related-diseases
#1
Fiorella Sarubbo, David Moranta, Victor Jose Asensio, Antonio Miralles, Susana Esteban
With the global increase in the elderly population, modern societies must meet the challenge to find strategies to reduce the consequences of aging process; thereby decreasing the incidence of age-related neurodegenerative diseases. Over the last two decades, oxidative stress and recently inflammation, have been pointed out as the leading causes of brain aging. As a suggested treatment, the consumption or administration of antioxidant and anti-inflammatory molecules, such as polyphenols, present in food, is recommended as a beneficial strategy for preventing brain aging and several brain age-related diseases...
July 24, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28662290/resveratrol-and-pterostilbene-as-a-microrna-mediated-chemopreventive-and-therapeutic-strategy-in-prostate-cancer
#2
REVIEW
Avinash Kumar, Agnes M Rimando, Anait S Levenson
Growing evidence indicates that deregulation of the epigenetic machinery comprising the microRNA (miRNA) network is a critical factor in the progression of various diseases, including cancer. Concurrently, dietary phytochemicals are being intensively studied for their miRNA-mediated health-beneficial properties, such as anti-inflammatory, cardioprotective, antioxidative, and anticancer properties. Available experimental data have suggested that dietary polyphenols may be effective miRNA-modulating chemopreventive and therapeutic agents...
June 29, 2017: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/28641467/green-tea-polyphenol-egcg-causes-anti-cancerous-epigenetic-modulations-in-acute-promyelocytic-leukemia-cells
#3
Veronika Borutinskaitė, Aida Virkšaitė, Giedrė Gudelytė, Rūta Navakauskienė
Green tea (Camellia sinensis) catechin epigallocatechin-3-gallate (EGCG) has been shown to possess diverse anti-cancerous properties. We demonstrated EGCG ability to inhibit acute promyelocytic leukemia (APL) cell proliferation and cause apoptosis. In addition, quantitative real-time polymerase chain reaction (RT-qPCR) analysis revealed elevated expression of genes associated with cell cycle arrest and differentiation (p27, PCAF, C/EBPα, and C/EBPɛ). Furthermore, EGCG caused anti-cancerous epigenetic changes: downregulation of epigenetic modifiers DNMT1, HDAC1, HDAC2, and G9a was observed by RT-qPCR analysis...
June 22, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28595952/trans-resveratrol-enriched-maternal-diet-protects-the-immature-hippocampus-from-perinatal-asphyxia-in-rats
#4
Sebastian Isac, Anca Maria Panaitescu, Ana Spataru, Mara Iesanu, Alexandra Totan, Amalia Udriste, Natalia Cucu, Gheorghe Peltecu, Leon Zagrean, Ana-Maria Zagrean
Trans-resveratrol (tRESV), a polyphenol with antioxidant properties, is common in many food sources, hence easily accessible for study as a maternal dietary supplement in perinatal asphyxia (PA). Hypoxic-ischemic encephalopathy secondary to PA affects especially vulnerable brain areas such as hippocampus and is a leading cause of neonatal morbidity. The purpose of this study is to identify new epigenetic mechanisms of brain inflammation and injury related to PA and to explore the benefit of tRESV enriched maternal diet...
July 13, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28444216/dietary-metabolites-derived-from-gut-microbiota-critical-modulators-of-epigenetic-changes-in-mammals
#5
Mohd Iqbal Bhat, Rajeev Kapila
The mammalian gastrointestinal tract harbors trillions of commensal microorganisms, collectively known as the microbiota. The microbiota is a critical source of environmental stimuli and, thus, has a tremendous impact on the health of the host. The microbes within the microbiota regulate homeostasis within the gut, and any alteration in their composition can lead to disorders that include inflammatory bowel disease, allergy, autoimmune disease, diabetes, mental disorders, and cancer. Hence, restoration of the gut flora following changes or imbalance is imperative for the host...
May 1, 2017: Nutrition Reviews
https://www.readbyqxmd.com/read/28222671/reversal-of-hypermethylation-and-reactivation-of-glutathione-s-transferase-pi-1-gene-by-curcumin-in-breast-cancer-cell-line
#6
Umesh Kumar, Ujjawal Sharma, Garima Rathi
One of the mechanisms for epigenetic silencing of tumor suppressor genes is hypermethylation of cytosine residue at CpG islands at their promoter region that contributes to malignant progression of tumor. Therefore, activation of tumor suppressor genes that have been silenced by promoter methylation is considered to be very attractive molecular target for cancer therapy. Epigenetic silencing of glutathione S-transferase pi 1, a tumor suppressor gene, is involved in various types of cancers including breast cancer...
February 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28130850/demethylating-and-anti-hepatocarcinogenic-potential-of-hesperidin-a-natural-polyphenol-of-citrus-juices
#7
Zahira Fernández-Bedmar, Jaouad Anter, Angeles Alonso-Moraga, Juana Martín de Las Mulas, Yolanda Millán-Ruiz, Silvia Guil-Luna
Hepatocellular carcinoma (HCC) is a neoplasia representing the fifth most common malignancy worldwide and the third cause of death from cancer. Diets with high content in fruits and vegetables are widely recommended for their health-promoting properties, among them, the protection against diabetes, cancer, and cardiovascular diseases. Hesperidin is the most important phenol in the orange fruit with well-known health benefits. Diet components have been used as possible modulator agents of DNA methylation in cancer cells and epigenetic therapy against their harmful effects could be a potential tool in chemotherapy...
June 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/28090275/induction-of-epigenetic-alteration-by-cpuk02-an-ent-kaurenoid-derivative-of-stevioside
#8
Pooneh Mokarram, Zeinab Mohammadi, Saeid Khazayel, Zhang Dayong
BACKGROUND: Dietary polyphenols, such as those found in green tea and red wine, are linked to antitumor activity. They are known to influence many signaling pathways epigenetically within the human body. In this regard, CPUK02 (15-Oxosteviol benzyl ester) is a new ent-kaurenoid derivative of stevioside and exhibits strong anti-cancer activity in vitro and in vivo. Nowadays, the role of epigenetics in cancer has been the subject of intensive study and DNA methylation targeting represents a relevant strategy for cancer treatment...
January 2017: Avicenna Journal of Medical Biotechnology
https://www.readbyqxmd.com/read/28079009/emerging-roles-of-calreticulin-in-cancer-implications-for-therapy
#9
Kavya Venkateswaran, Amit Verma, Anant Narayan Bhatt, Anju Shrivastava, Kailash Manda, Hanumantharao G Raj, Ashok Prasad, Christophe Len, Virinder S Parmar, Bilikere Dwarakanath
Calreticulin (CRT), initially identified as a ubiquitous calcium-binding protein in the endoplasmic reticulum, has emerged as a multifunctional protein with roles in calcium homeostasis, molecular chaperoning and cell adhesion. Emerging evidence suggests its involvement in tumorigenesis facilitating proliferation, migration, and adhesion. CRT translocated to the cell surface (ecto-CRT) serves as a phagocytic signal for immunogenic cell death (ICD) mediated through dendritic cells (DCs) and cytotoxic T-cell activation thereby making tumors susceptible to immunotherapy-based anti-cancer strategies...
January 11, 2017: Current Protein & Peptide Science
https://www.readbyqxmd.com/read/28076319/impact-of-nutrition-on-pollutant-toxicity-an-update-with-new-insights-into-epigenetic-regulation
#10
REVIEW
Jessie B Hoffman, Michael C Petriello, Bernhard Hennig
Exposure to environmental pollutants is a global health problem and is associated with the development of many chronic diseases, including cardiovascular disease, diabetes and metabolic syndrome. There is a growing body of evidence that nutrition can both positively and negatively modulate the toxic effects of pollutant exposure. Diets high in proinflammatory fats, such as linoleic acid, can exacerbate pollutant toxicity, whereas diets rich in bioactive and anti-inflammatory food components, including omega-3 fatty acids and polyphenols, can attenuate toxicant-associated inflammation...
March 1, 2017: Reviews on Environmental Health
https://www.readbyqxmd.com/read/28069395/rutin-attenuates-doxorubicin-induced-cardiotoxicity-via-regulating-autophagy-and-apoptosis
#11
Yanyan Ma, Lifang Yang, Jipeng Ma, Linhe Lu, Xiaowu Wang, Jun Ren, Jian Yang
Doxorubicin as anticancer agent can cause dose-dependent cardiotoxicity and heart failure in the long term. Rutin as a polyphenolic flavonoid has been illustrated to protect hearts from diverse cardiovascular diseases. Its function is known to be related to its antioxidant and antiinflammatory activity which may regulate multiple cellular signal pathways. However, the role of rutin on doxorubicin-induced cardiotoxicity has yet to be discovered. In this study, we explored the protective role of rutin on doxorubicin-induced heart failure and elucidated the potential mechanisms of protective effects of rutin against cardiomyocyte death...
August 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28031235/htp-nutraceutical-screening-for-histone-deacetylase-inhibitors-and-effects-of-hdacis-on-tumor-suppressing-mirnas-by-trichostatin-a-and-grapeseed-vitis-vinifera-in-hela-cells
#12
Elizabeth A Mazzio, Karam F A Soliman
BACKGROUND/AIM: Aggressive tumor malignancies are a consequence of delayed diagnosis, epigenetic/phenotype changes and chemo-radiation resistance. Histone deacetylases (HDACs) are a major epigenetic regulator of transcriptional repression, which are highly overexpressed in advanced malignancy. While original chemotherapy drugs were modeled after phytochemicals elucidated by botanical screenings, HDAC inhibitors (HDACi) such as apicidin, trichostatin A (TSA) and butyrate were discovered as products of fungus and microbes, in particular, gut microbiota...
January 2, 2017: Cancer Genomics & Proteomics
https://www.readbyqxmd.com/read/27989132/dietary-phytochemicals-and-cancer-chemoprevention-a-perspective-on-oxidative-stress-inflammation-and-epigenetics
#13
Wenji Li, Yue Guo, Chengyue Zhang, Renyi Wu, Anne Yuqing Yang, John Gaspar, Ah-Ng Tony Kong
Oxidative stress occurs when cellular reactive oxygen species levels exceed the self-antioxidant capacity of the body. Oxidative stress induces many pathological changes, including inflammation and cancer. Chronic inflammation is believed to be strongly associated with the major stages of carcinogenesis. The nuclear factor erythroid 2-related factor 2 (Nrf2) pathway plays a crucial role in regulating oxidative stress and inflammation by manipulating key antioxidant and detoxification enzyme genes via the antioxidant response element...
December 19, 2016: Chemical Research in Toxicology
https://www.readbyqxmd.com/read/27951449/plant-flavonoids-in-cancer-chemoprevention-role-in-genome-stability
#14
REVIEW
Vazhappilly Cijo George, Graham Dellaire, H P Vasantha Rupasinghe
Carcinogenesis is a multistage process that involves a series of events comprising of genetic and epigenetic changes leading to the initiation, promotion and progression of cancer. Chemoprevention is referred to as the use of nontoxic natural compounds, synthetic chemicals or their combinations to intervene in multistage carcinogenesis. Chemoprevention through diet modification, i.e., increased consumption of plant-based food, has emerged as a most promising and potentially cost-effective approach to reducing the risk of cancer...
November 28, 2016: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/27852009/treatment-of-cardiovascular-pathology-with-epigenetically-active-agents-focus-on-natural-and-synthetic-inhibitors-of-dna-methylation-and-histone-deacetylation
#15
REVIEW
Dimitry A Chistiakov, Alexander N Orekhov, Yuri V Bobryshev
Cardiovascular disease (CVD) retains a leadership as a major cause of human death worldwide. Although a substantial progress was attained in the development of cardioprotective and vasculoprotective drugs, a search for new efficient therapeutic strategies and promising targets is under way. Modulation of epigenetic CVD mechanisms through administration epigenetically active agents is one of such new approaches. Epigenetic mechanisms involve heritable changes in gene expression that are not linked to the alteration of DNA sequence...
January 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/27843913/quercetin-as-an-emerging-anti-melanoma-agent-a-four-focus-area-therapeutic-development-strategy
#16
REVIEW
Zoey Harris, Micah G Donovan, Gisele Morais Branco, Kirsten H Limesand, Randy Burd
Replacing current refractory treatments for melanoma with new prevention and therapeutic approaches is crucial in order to successfully treat this aggressive cancer form. Melanoma develops from neural crest cells, which express tyrosinase - a key enzyme in the pigmentation pathway. The tyrosinase enzyme is highly active in melanoma cells and metabolizes polyphenolic compounds; tyrosinase expression thus makes feasible a target for polyphenol-based therapies. For example, quercetin (3,3',4',5,7-pentahydroxyflavone) is a highly ubiquitous and well-classified dietary polyphenol found in various fruits, vegetables, and other plant products including onions, broccoli, kale, oranges, blueberries, apples, and tea...
2016: Frontiers in Nutrition
https://www.readbyqxmd.com/read/27787915/resveratrol-inhibits-il-6-induced-ovarian-cancer-cell-migration-through-epigenetic-up-regulation-of-autophagy
#17
Alessandra Ferraresi, Suratchanee Phadngam, Federica Morani, Alessandra Galetto, Oscar Alabiso, Giovanna Chiorino, Ciro Isidoro
Interleukin-6 (IL-6), a pro-inflammatory cytokine released by cancer-associated fibroblasts, has been linked to the invasive and metastatic behavior of ovarian cancer cells. Resveratrol is a naturally occurring polyphenol with the potential to inhibit cancer cell migration. Here we show that Resveratrol and IL-6 affect in an opposite manner the expression of RNA messengers and of microRNAs involved in cell locomotion and extracellular matrix remodeling associated with the invasive properties of ovarian cancer cells...
March 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/27762153/olive-polyphenols-new-promising-agents-to-combat-aging-associated-neurodegeneration
#18
REVIEW
Fiorella Casamenti, Massimo Stefani
Clinical trials and population studies indicate the healthy virtues of the Mediterranean diet and its main lipid component, extra-virgin olive oil (EVOO). Olive leaves and EVOO contain many phenolics effective against several aging and lifestyle-related diseases, including neurodegeneration, both in animal models and in humans. Recent research has shown that such protection stems from several effects, including (i.) the interference with the aggregation of peptides/proteins found in amyloid diseases, particularly in Alzheimer's and Parkinson's diseases; (ii...
April 2017: Expert Review of Neurotherapeutics
https://www.readbyqxmd.com/read/27697644/epigenetic-regulation-of-active-chinese-herbal-components-for-cancer-prevention-and-treatment-a-follow-up-review
#19
REVIEW
Zhiying Huang, Qiuju Huang, Liyan Ji, Ying Wang, Xiaoxiao Qi, Liang Liu, Zhongqiu Liu, Linlin Lu
Epigenetic modifications include DNA methylation, histone modification, and other patterns. These processes are associated with carcinogenesis and cancer progression. Thus, epigenetic modification-related enzymes, such as DNA methyltransferases (DNMTs), histone methyltransferases (HMTs), histone demethylases (HDMTs), histone acetyltransferases (HATs), and histone deacetylases (HDACs), as well as some related proteins, including methyl-CpG binding proteins (MBPs) and DNMT1-associated protein (DMAP 1), are considered as potential targets for cancer prevention and therapy...
December 2016: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/27633111/improvements-in-metabolic-health-with-consumption-of-ellagic-acid-and-subsequent-conversion-into-urolithins-evidence-and-mechanisms
#20
REVIEW
Inhae Kang, Teresa Buckner, Neil F Shay, Liwei Gu, Soonkyu Chung
Ellagic acid (EA) is a naturally occurring polyphenol found in some fruits and nuts, including berries, pomegranates, grapes, and walnuts. EA has been investigated extensively because of its antiproliferative action in some cancers, along with its anti-inflammatory effects. A growing body of evidence suggests that the intake of EA is effective in attenuating obesity and ameliorating obesity-mediated metabolic complications, such as insulin resistance, type 2 diabetes, nonalcoholic fatty liver disease, and atherosclerosis...
September 2016: Advances in Nutrition
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