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Carotid Atherosclerotic unstable plaque

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https://www.readbyqxmd.com/read/28285652/circulating-adiponectin-levels-in-relation-to-carotid-atherosclerotic-plaque-presence-ischemic-stroke-risk-and-mortality-a-systematic-review-and-meta-analyses
#1
Jessica Gorgui, Karina Gasbarrino, Marios K Georgakis, Maria A Karalexi, Bénédicte Nauche, Eleni Th Petridou, Stella S Daskalopoulou
BACKGROUND: Low circulating levels of adiponectin, an anti-inflammatory and vasculoprotective adipokine, are associated with obesity, type 2 diabetes, and atherosclerotic disease. Presence of unstable plaques in the carotid artery is a known etiological factor causing ischemic strokes. Herein, we systematically reviewed the association between circulating adiponectin and progression of carotid atherosclerotic disease, particularly evaluating the occurrence of (1) carotid atherosclerotic plaques, (2) ischemic stroke, and (3) mortality in subjects who suffered a previous ischemic stroke...
April 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28258256/decreased-adiponectin-mediated-signaling-through-the-adipor2-pathway-is-associated-with-carotid-plaque-instability
#2
Karina Gasbarrino, Huaien Zheng, Anouar Hafiane, John P Veinot, Chi Lai, Stella S Daskalopoulou
BACKGROUND AND PURPOSE: Adiponectin, the most abundantly secreted anti-inflammatory adipokine, protects against all stages of atherosclerotic plaque formation by acting on its receptors, AdipoR1 (adiponectin receptor 1) and AdipoR2 (adiponectin receptor 2). Through binding of AdipoR1, adiponectin leads to the activation of the AMPK (adenosine monophosphate-activated protein kinase) pathway, whereas stimulation of PPAR-α (peroxisome proliferator-activated receptor-α) is attributed to the binding of AdipoR2...
March 3, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28214453/reciprocal-regulation-of-enos-h2s-and-co-synthesizing-enzymes-in-human-atheroma-correlation-with-plaque-stability-and-effects-of-simvastatin
#3
Fragiska Sigala, Panagiotis Efentakis, Dimitra Karageorgiadi, Konstadinos Filis, Paraskevas Zampas, Efstathios K Iliodromitis, George Zografos, Andreas Papapetropoulos, Ioanna Andreadou
The molecular and cellular mechanisms underlying plaque destabilization remain obscure. We sought to elucidate the correlation between NO, H2S and CO-generating enzymes, nitro-oxidative stress and plaque stability in carotid arteries. Carotid atherosclerotic plaques were collected from 62 patients who had undergone endarterectomy due to internal artery stenosis. Following histological evaluation the plaques were divided into stable and unstable ones. To investigate the impact of simvastatin we divided patients with stable plaques, into those receiving and to those not receiving simvastatin...
February 12, 2017: Redox Biology
https://www.readbyqxmd.com/read/28011257/cellular-subtype-expression-and-activation-of-camkii-regulate-the-fate-of-atherosclerotic-plaque
#4
Angela Serena Maione, Ersilia Cipolletta, Daniela Sorriento, Francesco Borriello, Maria Soprano, Maria Rosaria Rusciano, Vittoria D'Esposito, Abdul Karim Markabaoui, Giovanni Domenico De Palma, Giovanni Martino, Lucio Maresca, Giuseppe Nobile, Pietro Campiglia, Pietro Formisano, Michele Ciccarelli, Gianni Marone, Bruno Trimarco, Guido Iaccarino, Maddalena Illario
BACKGROUND AND AIMS: Atherosclerosis is a degenerative process of the arterial wall implicating activation of macrophages and proliferation of vascular smooth muscle cells. Calcium-calmodulin dependent kinase type II (CaMKII) in vascular smooth muscle cells (VSMCs) regulates proliferation, while in macrophages, this kinase governs diapedesis, infiltration and release of extracellular matrix enzymes. We aimed at understanding the possible role of CaMKII in atherosclerosis plaques to regulate plaque evolution towards stability or instability...
January 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28009484/hsp90-inhibition-suppresses-inflammatory-response-and-reduces-carotid-atherosclerotic-plaque-formation-in-apoe-mice
#5
Hongmei Mu, Liyong Wang, Lei Zhao
AIM: Emerging evidences indicate that heat shock protein 90 (HSP90) is associated with atherogenesis. However, the effect of HSP90 on plaque stability is largely unknown. In the present study, we explored the role of HSP90 in plaque development and its regulatory mechanisms on vasculature. METHODS: HSP90-overexpression lentivirus (Lenti-HSP90) was used to transfect apoE(-/-) mice after constrictive collars were planted at the right common carotid arteries. RESULTS: As a result, HSP90 gene overexpression led to reduction in en face plaque area, and increase in unstable plaque with heavier accumulation of lipids...
December 23, 2016: Cardiovascular Therapeutics
https://www.readbyqxmd.com/read/27940038/increased-levels-of-legumain-in-plasma-and-plaques-from-patients-with-carotid-atherosclerosis
#6
Ngoc Nguyen Lunde, Sverre Holm, Tuva B Dahl, Inass Elyouncha, Bjørnar Sporsheim, Ida Gregersen, Azhar Abbas, Mona Skjelland, Terje Espevik, Rigmor Solberg, Harald Thidemann Johansen, Bente Halvorsen
BACKGROUND AND AIMS: The cysteine protease legumain has been shown to be up-regulated in unstable atherosclerotic plaques. This study aims to further elucidate legumain in atherosclerosis, by examining legumain in plasma and carotid plaques from patients with carotid stenosis. Furthermore, legumain secretion from monocyte-derived macrophages treated with atherogenic lipids during macrophage polarization was studied. METHODS: Plasma levels of legumain from patients with carotid stenosis (n = 254), healthy controls (n = 91), and secreted from monocyte-derived macrophages were assessed by enzyme-linked-immunosorbent assay...
February 2017: Atherosclerosis
https://www.readbyqxmd.com/read/27895035/microrna-210-enhances-fibrous-cap-stability-in-advanced-atherosclerotic-lesions
#7
Suzanne M Eken, Hong Jin, Ekaterina Chernogubova, Yuhuang Li, Nancy Simon, Changyan Sun, Greg Korzunowicz, Albert Busch, Alexandra Bäcklund, Cecilia Österholm, Anton Razuvaev, Thomas Renné, Hans-Henning Eckstein, Jaroslav Pelisek, Per Eriksson, Maria Gonzalez Diez, Ljubica P Matic Perisic, Isabel N Schellinger, Uwe Raaz, Nicholas J Leeper, Göran K Hansson, Gabrielle Paulsson-Berne, Ulf Hedin, Lars Maegdefessel
RATIONALE: In the search for markers and modulators of vascular disease, miRNAs have emerged as potent therapeutic targets. OBJECTIVE: To investigate miRNAs of clinical interest in patients with unstable carotid stenosis at risk of stroke. METHODS AND RESULTS: Utilizing patient material from the Biobank of Karolinska Endarterectomies (BiKE), we profiled miRNA expression in patients with stable vs unstable carotid plaque. A PCR-based miRNA array of plasma, sampled at the carotid lesion site, identified eight deregulated miRNAs (miR-15b, -29c, -30c/d, -150, -191, -210 and -500)...
November 28, 2016: Circulation Research
https://www.readbyqxmd.com/read/27845316/-active-thermolocation-probing-as-a-promising-rapid-diagnostic-test-of-carotid-atherosclerosis
#8
I D Stulin, O O Yanushevich, S A Trukhanov, D S Solonsky, O N Budadin, E F Ivanushkin, A G Sazonova
AIM: To study the possibility of active thermolocation probing for the diagnosis of stenotic lesions of carotid arteries (CA). MATERIAL AND METHODS: Eighteenpatients without symptoms of cardiovascular diseases were examined using ultrasound. The patients had isoechogenic stable atherosclerotic plaques (AP). Ultrasound markers of AP instability were found in other patients. All patients underwent telethermography of face, neck and extremities, ultrasound duplex scanning of CA...
2016: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/27816808/talin-and-vinculin-are-downregulated-in-atherosclerotic-plaque-tampere-vascular-study
#9
Magdaléna von Essen, Rolle Rahikainen, Niku Oksala, Emma Raitoharju, Ilkka Seppälä, Ari Mennander, Thanos Sioris, Ivana Kholová, Norman Klopp, Thomas Illig, Pekka J Karhunen, Mika Kähönen, Terho Lehtimäki, Vesa P Hytönen
BACKGROUND AND AIMS: Focal adhesions (FA) play an important role in the tissue remodeling and in the maintenance of tissue integrity and homeostasis. Talin and vinculin proteins are among the major constituents of FAs contributing to cellular well-being and intercellular communication. METHODS: Microarray analysis (MA) and qRT-PCR low-density array were implemented to analyze talin-1, talin-2, meta-vinculin and vinculin gene expression in circulating blood and arterial plaque...
December 2016: Atherosclerosis
https://www.readbyqxmd.com/read/27714714/evaluation-of-mean-platelet-volume-and-platelet-distribution-width-in-patients-with-asymptomatic-intermediate-carotid-artery-plaque
#10
Fatih Yılmaz, Erkan Köklü, Filiz Kizilirmak Yilmaz, Elif Sarıönder Gencer, Ahmet Şükrü Alparslan, Özlem Yıldırımtürk
BACKGROUND: Platelets play a significant role in the pathogenesis of atherosclerosis. In atherosclerotic plaques, the risk of plaque rupture is more crucial than the severity of the stenosis they cause. Non-calcified carotid artery plaques are more unstable than calcified plaques, and they are associated with a higher risk of rupture, thromboembolism, and consequently, stroke. AIM: The purpose of the present study is to compare calcified and non-calcified plaques that cause intermediate carotid artery stenosis, with respect to mean platelet volume (MPV) and platelet distribution width (PDW)...
2017: Kardiologia Polska
https://www.readbyqxmd.com/read/27682808/incidence-and-predictors-of-cardiovascular-events-in-a-cohort-of-patients-with-rheumatoid-arthritis
#11
A M Castro, D C Fernandes, A M Rodrigues, L M Pedro, M J Santos, H Canhão, J E Fonseca
INTRODUCTION: An excess in cardiovascular (CV) morbidity and mortality has been recognized in Rheumatoid Arthritis (RA) patients when compared to the general population. Given the paucity of prospective data, our aim was to estimate the incidence of CV events and the contribution of traditional CVD risk factors and RA-related parameters to future events. METHODS: Incident fatal and non-fatal CV events (hospitalizations due to unstable angina, myocardial infarction, coronary artery revascularization procedures, stroke, or CV death) were assessed in a prospective cohort of RA women followed since 2007 and without CV events at cohort entry...
July 2016: Acta Reumatológica Portuguesa
https://www.readbyqxmd.com/read/27648042/analysis-of-carotid-color-ultrasonography-and-high-sensitive-c-reactive-protein-in-patients-with-atherosclerotic-cerebral-infarction
#12
Lei Zhao, Zhanyi Zhai, Wei Hou
OBJECTIVES: To detect the correlation between high-sensitivity-CRP, carotid plaque, neurological function and intima-media thickness, and help physicians in the diagnosis of atherosclerotic cerebral infarction. METHODS: A total of 96 patients with the first onset of atherosclerotic cerebral infarction were included in the study from July 2013 to May 2015. The test of high-sensitivity-CRP, examination of carotid color ultrasonography and neurological function evaluation were carried out for all the participants...
July 2016: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/27595161/age-associated-changes-in-human-carotid-atherosclerotic-plaques
#13
Jaroslav Pelisek, Heiko Wendorff, Carina Wendorff, Andreas Kuehnl, Hans-Henning Eckstein
Little is known about changes in carotid plaque morphology during aging and the possible impact on cardiovascular events. Only few studies addressed so far age-related modifications within atherosclerotic lesions. Therefore, in this work we endeavored to summarize the current knowledge about changing of plaque composition in elderly. The data from hitherto existing studies confirm that atherosclerotic plaques undergo distinct alternations with advanced age. However, the results are often ambiguous and the changes do not seem to be as disastrous as expected...
September 5, 2016: Annals of Medicine
https://www.readbyqxmd.com/read/27586546/unstable-carotid-artery-plaque-new-insights-and-controversies-in-diagnostics-and-treatment
#14
REVIEW
Karolina Skagen, Mona Skjelland, Mahtab Zamani, David Russell
Cardiovascular disease is estimated to be the leading cause of death, globally causing 14 million deaths each year. Stroke remains a massive public health problem and there is an increasing need for better strategies for the prevention and treatment of this disease. At least 20% of ischemic strokes are thromboembolic in nature, caused by a thromboembolism from an atherosclerotic plaque at the carotid bifurcation or the internal carotid artery. Current clinical guidelines for both primary and secondary prevention of stroke in patients with carotid stenosis caused by atherosclerotic plaques remain reliant on general patient characteristics (traditional risk factors for stroke) and static measures of the degree of artery stenosis...
August 31, 2016: Croatian Medical Journal
https://www.readbyqxmd.com/read/27532042/targeting-macrophage-necroptosis-for-therapeutic-and-diagnostic-interventions-in-atherosclerosis
#15
Denuja Karunakaran, Michele Geoffrion, Lihui Wei, Wei Gan, Laura Richards, Prakriti Shangari, Ella M DeKemp, Rachelle A Beanlands, Ljubica Perisic, Lars Maegdefessel, Ulf Hedin, Subash Sad, Liang Guo, Frank D Kolodgie, Renu Virmani, Terrence Ruddy, Katey J Rayner
Atherosclerosis results from maladaptive inflammation driven primarily by macrophages, whose recruitment and proliferation drive plaque progression. In advanced plaques, macrophage death contributes centrally to the formation of plaque necrosis, which underlies the instability that promotes plaque rupture and myocardial infarction. Hence, targeting macrophage cell death pathways may offer promise for the stabilization of vulnerable plaques. Necroptosis is a recently discovered pathway of programmed cell necrosis regulated by RIP3 and MLKL kinases that, in contrast to apoptosis, induces a proinflammatory state...
July 2016: Science Advances
https://www.readbyqxmd.com/read/27498092/gene-and-protein-expression-of-chemokine-c-c-motif-ligand-19-is-upregulated-in-unstable-carotid-atherosclerotic-plaques
#16
M K Salem, H Z Butt, E Choke, D Moore, K West, T G Robinson, R D Sayers, A R Naylor, M J Bown
OBJECTIVE/BACKGROUND: The aim was to investigate the expression of genes associated with carotid plaque instability and their protein products at a local and systemic level. METHODS: Carotid plaques from 24 patients undergoing carotid endarterectomy (CEA) were classified as stable or unstable using clinical, histological, ultrasound, and transcranial Doppler criteria, and compared using whole genome microarray chips. Initial results of differentially expressed genes were validated by quantitative reverse transcriptase polymerase chain reaction in an independent group of 96 patients undergoing CEA...
October 2016: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/27423556/the-curative-effect-comparison-of-two-kinds-of-therapeutic-regimens-on-decreasing-the-relative-intensity-of-microembolic-signal-in-clair-trial
#17
Q Q Deng, J Tang, C Chen, H Markus, Y N Huang, H Zhao, D Ratanakorn, K S L Wong, J H Fu
BACKGROUND: Microembolic signals (MESs) are direct markers of unstable large artery atherosclerotic plaques. In a previous study, we found that the number of MESs is associated with stroke recurrence and that clopidogrel plus aspirin more effectively reduce the number of MESs than does aspirin alone. Stroke recurrence is associated with not only the number of MESs but also the size of the MES, which can theoretically be estimated by monitoring the MES intensity via transcranial doppler (TCD)...
August 15, 2016: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/27391230/adipo-cytokines-in-atherosclerotic-secretomes-increased-visfatin-levels-in-unstable-carotid-plaque
#18
Teresa Auguet, Gemma Aragonès, Esther Guiu-Jurado, Alba Berlanga, Marta Curriu, Salomé Martinez, Ajla Alibalic, Carmen Aguilar, María-Luisa Camara, Esteban Hernández, Xavier Ruyra, Vicente Martín-Paredero, Cristóbal Richart
BACKGROUND: Novel pro-inflammatory and anti-inflammatory derivatives from adipose tissue, known as adipokines, act as metabolic factors. The aim of this study was to analyse the secreted expression of different adipo/cytokines in secretomes of unstable carotid atherosclerotic plaque versus non-atherosclerotic mammary artery. METHODS: We evaluated the secretion levels of adiponectin, visfatin, lipocalin-2, resistin, IL-6 and TNFR2 by ELISA in human secretomes from cultured unstable carotid atherosclerotic plaque (n = 18) and non-atherosclerotic mammary artery (n = 13)...
2016: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/27351411/impact-of-sex-and-age-on-carotid-plaque-instability-in-asymptomatic-patients-results-from-the-munich-vascular-biobank
#19
Carina Wendorff, Heiko Wendorff, Andreas Kuehnl, Pavlos Tsantilas, Michael Kallmayer, Hans-Henning Eckstein, Jaroslav Pelisek
BACKGROUND: It is still a controversial issue whether carotid endarterectomy (CEA) for asymptomatic carotid stenosis is superior to best medical treatment. The aim of this study was therefore to analyze the impact of sex and age on carotid plaque instability in asymptomatic patients undergoing CEA. PATIENTS AND METHODS: Atherosclerotic plaques from 465 asymptomatic patients with high-grade carotid artery stenosis (2004 - 2013) at the Munich Vascular Biobank were analyzed...
September 2016: VASA. Zeitschrift Für Gefässkrankheiten
https://www.readbyqxmd.com/read/27312219/circulating-chemerin-is-associated-with-carotid-plaque-instability-whereas-resistin-is-related-to-cerebrovascular-symptomatology
#20
Karina Gasbarrino, Christos Mantzoros, Jessica Gorgui, John P Veinot, Chi Lai, Stella S Daskalopoulou
OBJECTIVE: The rupture of unstable carotid atherosclerotic plaques is one of the main causes of cerebrovascular ischemic events. There is need for circulating markers that can predict plaque instability and risk of stroke. Proinflammatory chemerin, leptin, and resistin, along with anti-inflammatory adiponectin, are adipokines with direct influence on vascular function. We investigated the association of circulating adipokines with carotid plaque instability and cerebrovascular symptomatology...
August 2016: Arteriosclerosis, Thrombosis, and Vascular Biology
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