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Epigenetics atherosclerosis

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https://www.readbyqxmd.com/read/29045471/parental-and-offspring-contribution-of-genetic-markers-of-adult-blood-pressure-in-early-life-the-family-study
#1
Sébastien Robiou-du-Pont, Sonia S Anand, Katherine M Morrison, Sarah D McDonald, Stephanie A Atkinson, Koon K Teo, David Meyre
Previous genome wide association studies (GWAS) identified associations of multiple common variants with diastolic and systolic blood pressure traits in adults. However, the contribution of these loci to variations of blood pressure in early life is unclear. We assessed the child and parental contributions of 33 GWAS single-nucleotide polymorphisms (SNPs) for blood pressure in 1,525 participants (515 children, 406 mothers and 237 fathers) of the Family Atherosclerosis Monitoring In early life (FAMILY) study followed-up for 5 years...
2017: PloS One
https://www.readbyqxmd.com/read/29038540/regulation-of-endothelial-intracellular-adenosine-via-adenosine-kinase-epigenetically-modulates-vascular-inflammation
#2
Yiming Xu, Yong Wang, Siyuan Yan, Qiuhua Yang, Yaqi Zhou, Xianqiu Zeng, Zhiping Liu, Xiaofei An, Haroldo A Toque, Zheng Dong, Xuejun Jiang, David J Fulton, Neal L Weintraub, Qinkai Li, Zsolt Bagi, Mei Hong, Detlev Boison, Chaodong Wu, Yuqing Huo
The molecular mechanisms underlying vascular inflammation and associated inflammatory vascular diseases are not well defined. Here we show that endothelial intracellular adenosine and its key regulator adenosine kinase (ADK) play important roles in vascular inflammation. Pro-inflammatory stimuli lead to endothelial inflammation by increasing endothelial ADK expression, reducing the level of intracellular adenosine in endothelial cells, and activating the transmethylation pathway through increasing the association of ADK with S-adenosylhomocysteine (SAH) hydrolase (SAHH)...
October 16, 2017: Nature Communications
https://www.readbyqxmd.com/read/28978221/epigenetics-and-trained-immunity
#3
Charlotte D van der Heijden, Marlies P Noz, Leo A B Joosten, Mihai G Netea, Niels P Riksen, Samuel T Keating
SIGNIFICANCE: A growing body of clinical and experimental evidence has challenged the traditional understanding that only the adaptive immune system can mount immunological memory. Recent findings describe the adaptive characteristics of the innate immune system, underscored by its ability to remember antecedent foreign encounters and respond in a nonspecific sensitized manner to reinfection. This has been termed trained innate immunity. Although beneficial in the context of recurrent infections, this might actually contribute to chronic immune-mediated diseases, such atherosclerosis...
October 5, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28971272/monocyte-and-macrophage-immunometabolism-in-atherosclerosis
#4
REVIEW
Laszlo Groh, Samuel T Keating, Leo A B Joosten, Mihai G Netea, Niels P Riksen
Atherosclerosis is characterized by chronic low grade inflammation of arteries that results in the development of lipid dense plaques. Chronic inflammation induced by Western-type diet is associated with the risk of developing atherosclerosis, and new insights shed light on the importance of metabolic and functional reprogramming in monocytes and macrophages for progression of atherosclerosis. This review aims to provide an overview of our current understanding into how the metabolic reprogramming of glucose, cholesterol, fatty acid, and amino acid metabolism in macrophages contributes to inflammation during atherosclerosis...
October 2, 2017: Seminars in Immunopathology
https://www.readbyqxmd.com/read/28957329/uncovering-the-dna-methylation-landscape-in-key-regulatory-regions-within-the-fads-cluster
#5
Elaheh Rahbar, Hannah C Ainsworth, Timothy D Howard, Gregory A Hawkins, Ingo Ruczinski, Rasika Mathias, Michael C Seeds, Susan Sergeant, James E Hixson, David M Herrington, Carl D Langefeld, Floyd H Chilton
Genetic variants near and within the fatty acid desaturase (FADS) cluster are associated with polyunsaturated fatty acid (PUFA) biosynthesis, levels of several disease biomarkers and risk of human disease. However, determining the functional mechanisms by which these genetic variants impact PUFA levels remains a challenge. Utilizing an Illumina 450K array, we previously reported strong allele-specific methylation (ASM) associations (p = 2.69×10-29) between a single nucleotide polymorphism (SNP) rs174537 and DNA methylation of CpG sites located in the putative enhancer region between FADS1 and FADS2, in human liver tissue...
2017: PloS One
https://www.readbyqxmd.com/read/28940884/involvement-of-pdgf-ligands-and-receptors-in-tumorigenesis
#6
REVIEW
Carl-Henrik Heldin, Johan Lennartsson, Bengt Westermark
Platelet-derived growth factor (PDGF) isoforms and their receptors have important roles during embryogenesis, particularly in the development of various mesenchymal cell types in different organs. In the adult, PDGF stimulates wound healing and regulates tissue homeostasis. However, over-activity of PDGF signaling is associated with malignancies and other diseases characterized by excessive cell proliferation, such as fibrotic conditions and atherosclerosis. In certain tumors, genetic or epigenetic alterations of the genes for PDGF ligands and receptors drives tumor cell proliferation and survival...
September 22, 2017: Journal of Internal Medicine
https://www.readbyqxmd.com/read/28935756/perinatal-hypercholesterolemia-exacerbates-atherosclerosis-lesions-in-offspring-by-altering-metabolism-of-trimethylamine-n-oxide-and-bile-acids
#7
Charlotte Trenteseaux, Anh-Thu Gaston, Audrey Aguesse, Guillaume Poupeau, Pierre de Coppet, Ramaroson Andriantsitohaina, Jamila Laschet, Valérie Amarger, Michel Krempf, Estelle Nobecourt-Dupuy, Khadija Ouguerram
OBJECTIVE: Experimental studies suggest that maternal hypercholesterolemia may be relevant for the early onset of cardiovascular disease in offspring. We investigated the effect of perinatal hypercholesterolemia on the atherosclerosis development in the offspring of apolipoprotein E-deficient mice and the underlying mechanism. APPROACH AND RESULTS: Atherosclerosis and related parameters were studied in adult male or female apolipoprotein E-deficient mice offspring from either normocholesterolemic or hypercholesterolemic mothers and normocholesterolemic fathers...
September 21, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28923781/low-dose-of-alcohol-attenuates-pro-atherosclerotic-activity-of-thrombin
#8
Masaaki Toda, Toshiaki Totoki, Chizu Nakamura, Taro Yasuma, Corina N D' Alessandro-Gabazza, Rumi Mifuji-Moroka, Kota Nishihama, Motoh Iwasa, Noriyuki Horiki, Esteban C Gabazza, Yoshiyuki Takei
BACKGROUND AND AIMS: Thrombin, the active enzyme of the coagulation system, plays a critical role in the pathogenesis of atherosclerosis. Vascular repair promoted by stromal cell-derived factor-1 is a protective process in atherosclerosis. Consumption of low amount of alcohol is believed to reduce the risk of atherosclerotic cardiovascular disease but the mechanism is unclear. This study evaluated whether alcohol can modulate the expression of stromal cell-derived factor-1 and the pro-atherosclerotic activity of thrombin...
September 5, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28910789/end-stage-renal-disease-inflammation-and-cardiovascular-outcomes
#9
Lu Dai, Edyta Golembiewska, Bengt Lindholm, Peter Stenvinkel
Despite marked improvements in renal replacement therapy during the last 30 years, the age-adjusted mortality rate in end-stage renal disease (ESRD) patients is still unacceptably high and comparable to that of many malignancies. Cardiovascular disease (CVD) remains the major cause of morbidity and mortality in ESRD patients. However, traditional risk factors can only partially explain the high premature cardiovascular burden in this population. Nontraditional risk factors, including persistent low-grade inflammation, are critical in the pathogenesis of atherosclerosis, vascular calcification, and other causes of CVD and may also contribute to protein-energy wasting and other complications in chronic kidney disease (CKD) patients...
2017: Contributions to Nephrology
https://www.readbyqxmd.com/read/28883714/vascular-aging-and-subclinical-atherosclerosis-why-such-a-never-ending-and-challenging-story-in-cardiology
#10
EDITORIAL
Stela Iurciuc, Anca Maria Cimpean, Florin Mitu, Rodica Heredea, Mircea Iurciuc
The true onset of atherosclerosis remains one of the biggest challenges for cardiologists. Is atheroma plaque development considered the earliest step of vascular aging? If so, when it starts? Before or after birth? If it starts before birth or early during childhood, it seems that Thomas Sydenham was right: "A man is as old as his arteries." Except disorganization of elastic fibers, less is known about the morphology of vascular aging and also about the molecular events influencing the age of arteries, arterial stiffness, and their role in the appearance of future complications...
2017: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/28878685/oxidative-stress-mediated-atherosclerosis-mechanisms-and-therapies
#11
REVIEW
Xinyu Yang, Yang Li, Yanda Li, Xiaomeng Ren, Xiaoyu Zhang, Dan Hu, Yonghong Gao, Yanwei Xing, Hongcai Shang
Atherogenesis, the formation of atherosclerotic plaques, is a complex process that involves several mechanisms, including endothelial dysfunction, neovascularization, vascular proliferation, apoptosis, matrix degradation, inflammation, and thrombosis. The pathogenesis and progression of atherosclerosis are explained differently by different scholars. One of the most common theories is the destruction of well-balanced homeostatic mechanisms, which incurs the oxidative stress. And oxidative stress is widely regarded as the redox status realized when an imbalance exists between antioxidant capability and activity species including reactive oxygen (ROS), nitrogen (RNS) and halogen species, non-radical as well as free radical species...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28869506/critical-role-of-the-human-atp-binding-cassette-g1-transporter-in-cardiometabolic-diseases
#12
REVIEW
Lise M Hardy, Eric Frisdal, Wilfried Le Goff
ATP-binding cassette G1 (ABCG1) is a member of the large family of ABC transporters which are involved in the active transport of many amphiphilic and lipophilic molecules including lipids, drugs or endogenous metabolites. It is now well established that ABCG1 promotes the export of lipids, including cholesterol, phospholipids, sphingomyelin and oxysterols, and plays a key role in the maintenance of tissue lipid homeostasis. Although ABCG1 was initially proposed to mediate cholesterol efflux from macrophages and then to protect against atherosclerosis and cardiovascular diseases (CVD), it becomes now clear that ABCG1 exerts a larger spectrum of actions which are of major importance in cardiometabolic diseases (CMD)...
September 2, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28855511/blood-monocyte-transcriptome-and-epigenome-analyses-reveal-loci-associated-with-human-atherosclerosis
#13
Yongmei Liu, Lindsay M Reynolds, Jingzhong Ding, Li Hou, Kurt Lohman, Tracey Young, Wei Cui, Zhiqing Huang, Carole Grenier, Ma Wan, Hendrik G Stunnenberg, David Siscovick, Lifang Hou, Bruce M Psaty, Stephen S Rich, Jerome I Rotter, Joel D Kaufman, Gregory L Burke, Susan Murphy, David R Jacobs, Wendy Post, Ina Hoeschele, Douglas A Bell, David Herrington, John S Parks, Russell P Tracy, Charles E McCall, James H Stein
Little is known regarding the epigenetic basis of atherosclerosis. Here we present the CD14+ blood monocyte transcriptome and epigenome signatures associated with human atherosclerosis. The transcriptome signature includes transcription coactivator, ARID5B, which is known to form a chromatin derepressor complex with a histone H3K9Me2-specific demethylase and promote adipogenesis and smooth muscle development. ARID5B CpG (cg25953130) methylation is inversely associated with both ARID5B expression and atherosclerosis, consistent with this CpG residing in an ARID5B enhancer region, based on chromatin capture and histone marks data...
August 30, 2017: Nature Communications
https://www.readbyqxmd.com/read/28843433/hdac-inhibitors-a-new-promising-drug-class-in-anti-aging-research
#14
REVIEW
Elena G Pasyukova, Alexander M Vaiserman
In the last years, epigenetic regulation of gene expression is regarded as an important factor involved in a broad spectrum of aging-associated processes including loss of physical activity, frailty and genomic instability, and in development of various pathological conditions such as atherosclerosis, type 2 diabetes, cancer, immune deficits and neurodegenerative diseases. Accordingly, inhibitors of the members of superfamilies of histone deacetylases (HDACs) have been proposed, among other drugs targeting epigenetic pathways, as a promising type of therapeutics that is able to combat aging and its manifestations...
August 24, 2017: Mechanisms of Ageing and Development
https://www.readbyqxmd.com/read/28830735/targeting-vasa-vasorum-dysfunction-to-prevent-atherosclerosis
#15
REVIEW
Erin C Boyle, Daniel G Sedding, Axel Haverich
Vasa vasorum are blood microvessels which penetrate the adventitia and outer layers of the media of large blood vessels, supplying them with nutrients and oxygen. A growing body of evidence suggests that vasa vasorum play a central role in the pathogenesis of atherosclerosis. In this review, we will make a case for the role of microvascular dysfunction in the initiation of disease. When seen through this lens, new therapeutic opportunities for prevention can be envisioned. In particular, we discuss how targeting the cellular metabolism and epigenetic machinery of vasa vasorum neovessels could be harnessed to render vasa vasorum endothelial cells less sensitive to atherogenic stimuli...
September 2017: Vascular Pharmacology
https://www.readbyqxmd.com/read/28698603/identification-of-differentially-methylated-brca1-and-crisp2-dna-regions-as-blood-surrogate-markers-for-cardiovascular-disease
#16
Geoffrey Istas, Ken Declerck, Maria Pudenz, Katarzyna Szarc Vel Szic, Veronica Lendinez-Tortajada, Montserrat Leon-Latre, Karen Heyninck, Guy Haegeman, Jose A Casasnovas, Maria Tellez-Plaza, Clarissa Gerhauser, Christian Heiss, Ana Rodriguez-Mateos, Wim Vanden Berghe
Genome-wide Illumina InfiniumMethylation 450 K DNA methylation analysis was performed on blood samples from clinical atherosclerosis patients (n = 8) and healthy donors (n = 8) in the LVAD study (NCT02174133, NCT01799005). Multiple differentially methylated regions (DMR) could be identified in atherosclerosis patients, related to epigenetic control of cell adhesion, chemotaxis, cytoskeletal reorganisations, cell proliferation, cell death, estrogen receptor pathways and phagocytic immune responses...
July 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28678593/neighborhood-characteristics-influence-dna-methylation-of-genes-involved-in-stress-response-and-inflammation-the-multi-ethnic-study-of-atherosclerosis
#17
Jennifer A Smith, Wei Zhao, Xu Wang, Scott M Ratliff, Bhramar Mukherjee, Sharon L R Kardia, Yongmei Liu, Ava V Diez Roux, Belinda L Needham
Living in a disadvantaged neighborhood is associated with poor health outcomes even after accounting for individual-level socioeconomic factors. The chronic stress of unfavorable neighborhood conditions may lead to dysregulation of the stress reactivity and inflammatory pathways, potentially mediated through epigenetic mechanisms such as DNA methylation. We used multi-level models to examine the relationship between two neighborhood conditions and methylation levels of 18 genes related to stress reactivity and inflammation in purified monocytes from 1,226 participants of the Multi-Ethnic Study of Atherosclerosis (MESA), a population-based sample of US adults...
July 5, 2017: Epigenetics: Official Journal of the DNA Methylation Society
https://www.readbyqxmd.com/read/28661724/sirt1-and-sirt6-signaling-pathways-in-cardiovascular-disease-protection
#18
Nunzia D'Onofrio, Luigi Servillo, Maria Luisa Balestrieri
SIGNIFICANCE: Oxidative stress represents the common hallmark of pathological conditions associated with cardiovascular disease (CVD), including atherosclerosis, heart failure, hypertension, aging, diabetes, and other vascular system-related diseases. The sirtuin (SIRT) family, comprising seven proteins (SIRT1-SIRT7) sharing a highly conserved nicotinamide adenine dinucleotide (NAD(+))-binding catalytic domain, attracted a great attention for the past few years as stress adaptor and epigenetic enzymes involved in the cellular events controlling aging-related disorder, cancer, and CVD...
June 29, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28652179/non-coding-rna-regulation-of-t-cell-biology-implications-for-age-associated-cardiovascular-diseases
#19
REVIEW
Jose Coelho-Lima, Ioakim Spyridopoulos
Prevalence of age-associated cardiovascular diseases (CVD) has dramatically increased as a result of improvements in life expectancy. Chronic inflammation is a shared pathophysiological feature of age-associated CVDs, indicating a role for the immune system in the onset and development of CVDs. Indeed, ageing elicits profound changes in both the cardiovascular and immune system, especially in the T cell compartment. Although such changes have been well described at the cellular level, the molecular mechanisms underlying immune-mediated cardiovascular ageing remain largely unexplored...
June 23, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28552520/atherogenic-dyslipidemia-in-latin-america-prevalence-causes-and-treatment-expert-s-position-paper-made-by-the-latin-american-academy-for-the-study-of-lipids-alalip-endorsed-by-the-inter-american-society-of-cardiology-iasc-the-south-american-society-of-cardiology
#20
Carlos I Ponte-Negretti, Jesus E Isea-Perez, Alberto J Lorenzatti, Patricio Lopez-Jaramillo, Fernando Stuardo Wyss-Q, Xavier Pintó, Fernando Lanas, Josefina Medina, Livia T Machado-H, Monica Acevedo, Paola Varleta, Alfonso Bryce, Carlos Carrera, Carlos Ernesto Peñaherrera, José Ramón Gómez-M, Alfredo Lozada, Alonso Merchan-V, Daniel Piskorz, Enrique Morales, Maria Paniagua, Félix Medina-Palomin, Raul Alejandro Villar-M, Leonardo Cobos, Enrique Gómez-Alvares, Rodrigo Alonso, Juan Colan, Julio Chirinos, Jofre Lara, Vladimir Ullauri, Ildefonso Arocha
This is an executive summary made by a group of experts named Latin American Academy for the study of Lipids (ALALIP). In the current clinical guidelines, atherogenic dyslipidemia (AD) is a poorly recognized entity. Due to the frequent lipid alterations associated with AD in Latin America (LA), we organized a group of experts named (ALALIP) to generate a document in order to analyze their prevalence and to offer practical recommendations. METHODOLOGY: using the Delphi methodology, we conducted a comprehensive literature review with emphasis on those publications related to LA...
September 15, 2017: International Journal of Cardiology
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