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Atherosclerotic plaque

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https://www.readbyqxmd.com/read/29227739/chronic-exposure-to-external-low-dose-gamma-radiation-induces-an-increase-in-anti-inflammatory-and-anti-oxidative-parameters-resulting-in-atherosclerotic-plaque-size-reduction-in-apoe-mice
#1
T G Ebrahimian, L Beugnies, J Surette, N Priest, Y Gueguen, C Gloaguen, M Benderitter, J R Jourdain, K Tack
Populations living in radiation-contaminated territories, such as Chernobyl and Fukushima, are chronically exposed to external gamma radiation and internal radionuclide contamination due to the large amount of 137Cs released in the environment. The effect of chronic low-dose exposure on the development of cardiovascular diseases remains unclear. Previously reported studies have shown that low-dose radiation exposure could lead to discrepancies according to dose rate. In this study, we examined the effect of very low-dose and dose-rate chronic external exposure on atherosclerosis development...
December 11, 2017: Radiation Research
https://www.readbyqxmd.com/read/29226430/3dtee-imaging-of-a-descending-aorta-floating-thrombus-in-a-patient-with-calciphylaxis
#2
Konstantinos C Theodoropoulos, Alexandros Papachristidis, Michael Papitsas, Jonathan Byrne, Mark J Monaghan
We present a case of a 68-year-old man with calciphylaxis, who was found to have a floating thrombus in the descending aorta on a transesophageal echocardiogram. The use of 3D echocardiography demonstrated nicely the free motion of the thrombus, emerging from an atherosclerotic plaque in the descending aorta. Anticoagulation was started for thromboembolism prevention.
December 11, 2017: Echocardiography
https://www.readbyqxmd.com/read/29226241/raman-spectroscopy-imaging-reveals-interplay-between-atherosclerosis-and-medial-calcification-in-the-human-aorta
#3
Amanda Y F You, Mads S Bergholt, Jean-Philippe St-Pierre, Worrapong Kit-Anan, Isaac J Pence, Adrian H Chester, Magdi H Yacoub, Sergio Bertazzo, Molly M Stevens
Medial calcification in the human aorta accumulates during aging and is known to be aggravated in several diseases. Atherosclerosis, another major cause of cardiovascular calcification, shares some common aggravators. However, the mechanisms of cardiovascular calcification remain poorly understood. To elucidate the relationship between medial aortic calcification and atherosclerosis, we characterized the cross-sectional distributions of the predominant minerals in aortic tissue, apatite and whitlockite, and the associated extracellular matrix...
December 2017: Science Advances
https://www.readbyqxmd.com/read/29226174/proprotein-convertase-subtilisin-kexin-9-levels-in-relation-to-systemic-immune-activation-and-subclinical-coronary-plaque-in-hiv
#4
Markella V Zanni, Lauren A Stone, Mabel Toribio, Dodie E Rimmelin, Jake Robinson, Tricia H Burdo, Kenneth Williams, Kathleen V Fitch, Janet Lo, Steven K Grinspoon
Background: Proprotein convertase subtilisin/kexin 9 (PCSK9) is known to mediate homeostasis of low-density lipoprotein cholesterol (LDL-c), but it may also participate in immune reactivity and atherogenesis. Methods: We compared circulating PCSK9 levels among asymptomatic individuals with and without HIV. Further, within each group, we assessed the relationship between PCSK9 levels, traditional cardiovascular disease risk factors, immune activation, and subclinical coronary atherosclerotic plaque...
2017: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/29226137/identification-of-key-pathways-and-genes-in-advanced-coronary-atherosclerosis-using-bioinformatics-analysis
#5
Xiaowen Tan, Xiting Zhang, Lanlan Pan, Xiaoxuan Tian, Pengzhi Dong
Background: Coronary artery atherosclerosis is a chronic inflammatory disease. This study aimed to identify the key changes of gene expression between early and advanced carotid atherosclerotic plaque in human. Methods: Gene expression dataset GSE28829 was downloaded from Gene Expression Omnibus (GEO), including 16 advanced and 13 early stage atherosclerotic plaque samples from human carotid. Differentially expressed genes (DEGs) were analyzed. Results: 42,450 genes were obtained from the dataset...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29225326/noninvasive-coronary-plaque-imaging
#6
Teruo Noguchi, Kazuhiro Nakao, Yasuhide Asaumi, Yoshiaki Morita, Fumiyuki Otsuka, Yu Kataoka, Hayato Hosoda, Hiroyuki Miura, Tetsuya Fukuda, Satoshi Yasuda
Early identification of high-risk or vulnerable atherosclerotic plaques prone to rupture and performing preemptive therapy prior to catastrophic cardiovascular events are optimal goals of plaque imaging. Despite the advances in imaging modalities to identify vulnerable characteristics, the predictive value of the imaging techniques in the clinical setting is still developing. In this regard, reliable and high-sensitive imaging modalities identifying vulnerable plaque characters that may lead to future cardiovascular events will be useful...
December 9, 2017: Journal of Atherosclerosis and Thrombosis
https://www.readbyqxmd.com/read/29224353/curcumin-attenuates-atherosclerosis-in-apolipoprotein-e-knockout-mice-by-inhibiting-toll-like-receptor-4-expression
#7
Shanshan Zhang, Jun Zou, Peiyang Li, Xiumei Zheng, Dan Feng
Toll-like receptor 4 (TLR4) has been reported to play a critical role in the pathogenesis of atherosclerosis, the current study aimed to investigate whether curcumin suppresses atherosclerosis development in ApoE-knockout (ApoE-/-) mice by inhibiting TLR4 expression. ApoE-/- mice were fed a high-fat diet supplemented with or without curcumin (0.1% w/w) for 16 weeks. Curcumin supplementation significantly reduced TLR4 expression and macrophage infiltration in atherosclerotic plaques. Curcumin also reduced aortic interleukin-1β (IL-1β), tumour necrosis factor-α (TNF-α), vascular cell adhesion molecule -1(VCAM-1) and intercellular adhesion molecule- 1(ICAM-1) expression, nuclear factor-κB (NF-κB) activity, and plasma IL-1β, TNF-α, soluble VCAM-1 and ICAM-1 levels...
December 10, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29223732/a-comparison-of-4d-flow-mri-derived-wall-shear-stress-with-computational-fluid-dynamics-methods-for-intracranial-aneurysms-and-carotid-bifurcations-a-review
#8
REVIEW
Jeremy Szajer, Kevin Ho-Shon
BACKGROUND: 4D flow MRI is a relatively quick method for obtaining wall shear stress (WSS) in vivo, a hemodynamic parameter which has shown promise in risk stratification for rupture of cerebrovascular diseases such as intracranial aneurysms and atherosclerotic plaques. The accuracy of such measurements is still largely unknown. OBJECTIVE: To quantify the accuracy of 4D flow MRI-derived wall shear stress values for intracranial aneurysms and carotid bifurcations...
December 6, 2017: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/29223165/role-of-microrna-in-development-of-instability-of-atherosclerotic-plaques
#9
REVIEW
I A Koroleva, M S Nazarenko, A N Kucher
MicroRNAs are small noncoding single-stranded RNAs that regulate gene expression. Today, we see an increasing number of studies highlighting the important role of microRNAs in the development and progression of cardiovascular diseases caused by atherosclerotic lesions of arteries. We review the available scientific data on association of the expression of these biomolecules with instability of atherosclerotic plaques in animal models and humans. We made special emphasis on miR-21, -100, -127, -133, -143/145, -221/222, and -494 because they were analyzed in more than one study...
November 2017: Biochemistry. Biokhimii︠a︡
https://www.readbyqxmd.com/read/29221669/regulation-of-pro-and-anti-atherogenic-cytokines
#10
Mitali Ray, Michael V Autieri
Despite advances in prevention and treatment, vascular diseases continue to account for significant morbidity and mortality in the developed world. Incidence is expected to worsen as the number of patients with common co-morbidities linked with atherosclerotic vascular disease, such as obesity and diabetes, continues to increase, reaching epidemic proportions. Atherosclerosis is a lipid-driven vascular inflammatory disease involving multiple cell types in various stages of inflammation, activation, apoptosis, and necrosis...
December 5, 2017: Cytokine
https://www.readbyqxmd.com/read/29221444/genome-wide-association-study-of-coronary-artery-calcified-atherosclerotic-plaque-in-african-americans-with-type-2-diabetes
#11
Jasmin Divers, Nicholette D Palmer, Carl D Langefeld, W Mark Brown, Lingyi Lu, Pamela J Hicks, S Carrie Smith, Jianzhao Xu, James G Terry, Thomas C Register, Lynne E Wagenknecht, John S Parks, Lijun Ma, Gary C Chan, Sarah G Buxbaum, Adolfo Correa, Solomon Musani, James G Wilson, Herman A Taylor, Donald W Bowden, John Jeffrey Carr, Barry I Freedman
BACKGROUND: Coronary artery calcified atherosclerotic plaque (CAC) predicts cardiovascular disease (CVD). Despite exposure to more severe conventional CVD risk factors, African Americans (AAs) are less likely to develop CAC, and when they do, have markedly lower levels than European Americans. Genetic factors likely contribute to the observed ethnic differences. To identify genes associated with CAC in AAs with type 2 diabetes (T2D), a genome-wide association study (GWAS) was performed using the Illumina 5 M chip in 691 African American-Diabetes Heart Study participants (AA-DHS), with replication in 205 Jackson Heart Study (JHS) participants with T2D...
December 8, 2017: BMC Genetics
https://www.readbyqxmd.com/read/29220804/graphene-and-au-nps-co-mediated-enzymatic-silver-deposition-for-the-ultrasensitive-electrochemical-detection-of-cholesterol
#12
Yong Huang, Jie Tan, Lijie Cui, Zhide Zhou, Sufang Zhou, Zhenghua Zhang, Rong Zheng, Yewei Xue, Mengxin Zhang, Shanshan Li, Nixuan Zhu, Jintao Liang, Guiyin Li, Liping Zhong, Yongxiang Zhao
Cholesterol is an essential ingredient in mammals, and serum cholesterol is a major component of atherosclerotic plaques. The level of cholesterol in human serum has become an important index for clinical diagnosis and prevention of cardiovascular disease. In this paper, a simple and ultrasensitive cholesterol biosensor based on graphene oxide (GO) and gold nanoparticles (Au NPs) co-mediated enzymatic silver deposition was designed by immobilizing cholesterol oxidase (CHOD), cholesterol esterase (CHER) and GO onto the surface of Au NPs modified screen-printed carbon electrode (SPE)...
November 11, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29220061/comparison-of-carotid-intima-media-thickness-and-coronary-artery-calcium-score-for-estimating-subclinical-atherosclerosis-in-patients-with-fatty-liver-disease
#13
Hyun-Jin Kim, Hyung-Bok Park, Yongsung Suh, Yoon-Hyeong Cho, Eui-Seok Hwang, Deok-Kyu Cho, Tae-Young Choi
INTRODUCTION: Fatty liver disease (FLD) is correlated with cardiovascular disease. Carotid intima-media thickness (CIMT) and coronary artery calcium score (CACS) can noninvasively identify subclinical atherosclerosis and predict risk for cardiovascular events. This study evaluated CIMT and CACS measurements to detect subclinical atherosclerosis in patients with and without FLD. METHODS: Patients who underwent carotid and abdominal ultrasounds as well as cardiac computed tomography (CT) scans were evaluated retrospectively...
December 8, 2017: Cardiovascular Journal of Africa
https://www.readbyqxmd.com/read/29217509/macrophage-associated-lipin-1-enzymatic-activity-contributes-to-modified-low-density-lipoprotein-induced-proinflammatory-signaling-and-atherosclerosis
#14
Aimee E Vozenilek, Aaron R Navratil, Jonette M Green, David T Coleman, Cassidy M R Blackburn, Alexandra C Finney, Brenna H Pearson, Roman Chrast, Brian N Finck, Ronald L Klein, A Wayne Orr, Matthew D Woolard
OBJECTIVE: Macrophage proinflammatory responses induced by modified low-density lipoproteins (modLDL) contribute to atherosclerotic progression. How modLDL causes macrophages to become proinflammatory is still enigmatic. Macrophage foam cell formation induced by modLDL requires glycerolipid synthesis. Lipin-1, a key enzyme in the glycerolipid synthesis pathway, contributes to modLDL-elicited macrophage proinflammatory responses in vitro. The objective of this study was to determine whether macrophage-associated lipin-1 contributes to atherogenesis and to assess its role in modLDL-mediated signaling in macrophages...
December 7, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/29217492/the-potential-role-of-ideal-mri-for-identification-of-lipids-and-hemorrhage-in-carotid-artery-plaques
#15
Faisal Khosa, Rachel E Clough, Xiaoen Wang, Ananth J Madhuranthakam, Robert L Greenman
Hemorrhage and lipid deposits contribute to instability in atherosclerotic plaques. Unstable carotid artery plaques can lead to cerebral ischemic events. While MRI studies have shown the ability to identify plaque components, the identification of hemorrhage and lipids has proven to be problematic. The purpose of this study was to quantitatively evaluate the potential of the MRI fat/water separation method known as iterative decomposition of water and fat with echo asymmetry and least squares estimation (IDEAL) to complement and improve existing methods for the identification of hemorrhage and lipids in carotid artery plaques...
December 4, 2017: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/29216423/nanoparticle-functionalization-with-platelet-membrane-enables-multi-factored-biological-targeting-and-detection-of-atherosclerosis
#16
Xiaoli Wei, Man Ying, Diana Dehaini, Yuanyuan Su, Ashley V Kroll, Jiarong Zhou, Weiwei Gao, Ronnie H Fang, Shu Chien, Liangfang Zhang
Cardiovascular disease represents one of the major causes of death across the global population. Atherosclerosis, one of its most common drivers, is characterized by the gradual build-up of arterial plaque over time, which can ultimately lead to life-threatening conditions. Given the impact of the disease on public health, there is a great need for effective and noninvasive imaging modalities that can provide valuable information on its biological underpinnings during development. Here, we leverage the role of platelets in atherogenesis to design nanocarriers capable of targeting multiple biological elements relevant to plaque development...
December 7, 2017: ACS Nano
https://www.readbyqxmd.com/read/29215707/the-diagnostic-and-prognostic-value-of-circulating-micrornas-in-coronary-artery-disease-a-novel-approach-to-disease-diagnosis-of-stable-cad-and-acute-coronary-syndrome
#17
REVIEW
Seyed Mostafa Parizadeh, Gordon A Ferns, Maryam Ghandehari, Seyed Mahdi Hasanian, Majid Ghayour-Mobarhan, Seyed Mohammad Reza Parizadeh, Amir Avan
Coronary artery disease (CAD) is the most common manifestation of CVD and the acute coronary syndrome (ACS) is associated with a substantial morbidity and mortality in most populations globally. There are several biomarkers for diagnosis of MI. Troponin is routinely used as a biomarker in patients with chest pain, but it lacks sensitivity in the first hours of onset of symptoms, and so there is still a clinical need for new biomarkers for the diagnosis of CAD events. Recent studies have shown that miRNAs are involved in atherosclerotic plaque formation and their expression is altered during CAD events...
December 7, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29215061/local-production-of-activated-factor-x-in-atherosclerotic-plaque-induced-vascular-smooth-muscle-cell-senescence
#18
Fumihiro Sanada, Jun Muratsu, Rei Otsu, Hideo Shimizu, Nobutaka Koibuchi, Kazutaka Uchida, Yoshiaki Taniyama, Shinichi Yoshimura, Hiromi Rakugi, Ryuichi Morishita
Our previous study demonstrated that coagulation factor Xa (FXa) induced endothelial cell senescence, resulting in inflammation and impaired angiogenesis. This mechanism is dictated through protease-activated receptors, PARs, insulin-like growth factor-binding protein 5 (IGFBP-5), and p53. Activation of PARs contributes to the pathophysiology of several chronic inflammatory diseases, including atherosclerosis. Thus, we speculated that similar mechanism might participate in the progression of atherosclerotic plaques...
December 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29214447/association-between-common-bile-duct-diameter-and-abdominal-aorta-calcium-score
#19
Yashar Moharamzad, Sahar Abbasi, Morteza Sanei Taheri, Taraneh Faghihi Langroudi
BACKGROUND AND OBJECTIVE: There is evidence of association between aging and increase in the normal upper limit of the common bile duct (CBD) diameter. As aging is a documented risk factor for atherosclerosis, and the possible effect that atherosclerosis can have on the CBD diameter via affecting its smooth muscle contractility and blood flow, we decided to determine the association between CBD diameter and atherosclerosis in the abdominal aorta (AA). METHODS: A total of 99 asymptomatic patients (53 males and 46 females; age range of 18-88 years) without history of cholecystectomy who underwent abdominal contrast-enhanced CT scan were included...
December 6, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/29213335/liraglutide-attenuates-atherosclerosis-via-inhibiting-er-induced-macrophage-derived-microvesicles-production-in-t2dm-rats
#20
Jinjin Li, Xiaojuan Liu, Qianhua Fang, Min Ding, Chunjun Li
Background: We investigated the effects of liraglutide on the formation and progression of atherosclerosis in type 2 diabetes mellitus (T2DM) rats. Methods: Sprague-Dawley rats were divided into control group, diabetes group and liraglutide treated group. The T2DM rats model with atherosclerosis were induced by high fat diet followed small dosage streptozotocin injection. Body weight and blood glucose levels were monitored once a week for 3 months and then the rats were sacrificed...
2017: Diabetology & Metabolic Syndrome
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