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Atherosclerosis

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https://www.readbyqxmd.com/read/28340367/insulin-resistance-is-associated-with-carotid-intima-media-thickness-in-non-diabetic-subjects-a-cross-sectional-analysis-of-the-elsa-brasil-cohort-baseline
#1
Itamar S Santos, Márcio S Bittencourt, Alessandra C Goulart, Maria Inês Schmidt, Maria de Fátima H S Diniz, Paulo A Lotufo, Isabela M Benseñor
BACKGROUND AND AIMS: Epidemiological studies have analyzed the association between carotid intima-media thickness (CIMT) and insulin resistance, glucose levels or glycated hemoglobin with mixed results. We aimed to evaluate the association between CIMT and homeostasis model assessment - insulin resistance (HOMA-IR), fasting and post-load plasma glucose and glycated hemoglobin in the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil) baseline. METHODS: We included 8028 participants (aged 35-74 years) without diabetes or overt cardiovascular disease who had complete CIMT data at baseline...
March 10, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28340366/effect-of-ezetimibe-on-low-and-high-density-lipoprotein-subclasses-in-sitosterolemia
#2
Rgia A Othman, Semone B Myrie, David Mymin, Jean-Baptiste Roullet, Robert D Steiner, Peter J H Jones
BACKGROUND AND AIMS: Sitosterolemia displays high plasma total sterols [high plant sterols (PS) + normal to high total cholesterol (TC)] with normal to moderately elevated low-density lipoprotein (LDL) levels. High LDL, intermediate-density lipoprotein (IDL) and very low-density lipoprotein (VLDL) particles, low high-density lipoprotein (HDL), and increased non-HDL and the ratios of TC and triglycerides (TG) to HDL can increase the risk for atherosclerosis. Ezetimibe (EZE) can reduce plasma PS and TC levels in sitosterolemia, but its effect on lipoprotein subclasses has not been previously reported...
March 10, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28340040/impaired-ability-to-grow-colonies-of-endothelial-stem-cells-could-be-the-mechanism-explaining-the-high-cardiovascular-morbidity-mortality-of-patients-with-depression
#3
Blum Arnon, Pastukh Nina, Zaroura Imad, Jonathan Rotem, Farhat Kamal
Background: Subjects with depression are more prone to develop cardiovascular complications. Severity of depression is associated with higher rates of cardiovascular mortality and morbidity. Several mechanisms were suggested including accelerated atherosclerosis, alteration of the cardiac autonomic response with a decrease in heart rate variability. There is evidence that circulating endothelial progenitor cells (EPCs) are decreased in patients with major depression. Our hypothesis was that patients with depression would have an impaired ability to build colonies of endothelial progenitor cells...
March 9, 2017: QJM: Monthly Journal of the Association of Physicians
https://www.readbyqxmd.com/read/28339090/inhibition-of-farnesyl-pyrophosphate-synthase-attenuates-high-glucose%C3%A2-induced-vascular-smooth-muscle-cells-proliferation
#4
Guo-Ping Chen, Xiao-Qin Zhang, Tao Wu, Jie Han, Dan Ye
The proliferation of vascular smooth muscle cells (VSMCs) is one of the main features of atherosclerosis accelerated by hyperglycemia. Our previous studies found that farnesyl pyrophosphate synthase (FPPS, EC 2.5.1.10), an essential enzyme in the mevalonate pathway, was upregulated in aorta media from diabetic mice along with the process of atherosclerosis. However, the exact role of FPPS in high glucose‑induced proliferation of VSMCs is largely unclear. In our study, we found that alendronate (an FPPS inhibitor) attenuated diabetic accelerated atherosclerosis in vivo and suppressed high glucose‑induced VSMCs proliferation in vitro...
March 23, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28339088/sclerostin-is-a-possible-candidate-marker-of-arterial-stiffness-results-from-a-cohort-study-in-catania
#5
Agostino Gaudio, Valerio Fiore, Rosario Rapisarda, Maria Helga Sidoti, Anastasia Xourafa, Antonino Catalano, Giovanni Tringali, Luca Zanoli, Salvatore Santo Signorelli, Carmelo Erio Fiore
Osteoporosis and cardiovascular disease are worldwide public health issues. Recent evidence indicates a possible role of the canonical Wnt/β-catenin signalling pathway as a common mediator between these two diseases. The aim of the present study was to investigate the relationship between serum concentrations of sclerostin and Dkk1, two extracellular inhibitors of Wnt/β-catenin signalling, with carotid intima-media thickness (CIMT) and with arterial stiffness, evaluated by measuring the pulse wave velocity (PWV) in an ambulatory population of adults...
March 24, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28338886/re-residential-proximity-to-traffic-related-pollution-and-atherosclerosis-in-4-vascular-beds-among-african-american-adults-results-from-the-jackson-heart-study
#6
https://www.readbyqxmd.com/read/28338883/the-effects-of-oleanolic-acid-on-atherosclerosis-in-different-animal-models
#7
Hanqiong Luo, Jine Liu, Qiong Ouyang, Chunxiao Xuan, Lanlan Wang, Tingting Li, Jun Liu
In the present study, three animal models, including C57BL/6J mice, low-density lipoprotein receptor knockout (LDLR-/-) mice, and rabbit that mimicked atherosclerosis, were established to investigate the inhibitory effect of oleanolic acid (OA) on atherosclerosis. In rabbit model, serum total cholesterol (TC), triglyceride, low density lipoprotein cholesterol (LDL-C), and high density lipoprotein cholesterol (HDL-C) were measured. Carotid artery lesions were isolated for histological analysis. The red oil O and hematoxylin-eosin staining in liver were examined...
March 4, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/28338522/developments-in-intestinal-cholesterol-transport-and-triglyceride-absorption
#8
Yared Paalvast, Jan Freark de Boer, Albert K Groen
PURPOSE OF REVIEW: To discuss recent advances in research focused on intestinal lipid handling. RECENT FINDINGS: An important strategy in reducing atherosclerosis and risk of cardiovascular events is to increase the rate of reverse cholesterol transport, including its final step; cholesterol excretion from the body. The rate of removal is determined by a complex interplay between the factors involved in regulation of intestinal cholesterol absorption. One of these factors is a process known as transintestinal cholesterol excretion...
March 23, 2017: Current Opinion in Lipidology
https://www.readbyqxmd.com/read/28337901/cardiopathy-and-osteoporosis-the-epidemiology-in-a-region-of-italy
#9
A Notarnicola, G Maccagnano, L Moretti, S Tafuri, B Moretti
Cardiopathies and osteoporosis are inter-related due to pathogenetic, hormonal, genetic features as well as an increased risk of fragility. An important feature is attributed to the process of atherosclerosis, which is responsible for an osteopenia effect and degeneration of vascular walls. To date the study populations have been limited. To verify the incidence of cardio-vascular disease in a larger osteoporotic population, we designed a retrospective clinical study analyzing the “Hospital Discharge Data” (HDD) in Apulia between 2006 and 2010...
January 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28337781/rationale-and-design-of-a-multicenter-international-and-collaborative-coronary-artery-aneurysm-registry-caar
#10
Iván J Núñez-Gil, Luis Nombela-Franco, Rodrigo Bagur, Mario Bollati, Enrico Cerrato, Emilio Alfonso, Christoph Liebetrau, José María De la Torre Hernandez, Benjamín Camacho, Rafael Mila, Ignacio J Amat-Santos, Fernando Alfonso, Ramón Rodríguez-Olivares, Santiago J Camacho Freire, Íñigo Lozano, Víctor Alfonso Jiménez Díaz, Davide Piraino, Roberto Adriano Latini, Gisela Feltes, Jose Antonio Linares, Massimo Mancone, Alfonso Ielasi, Alejandro Sánchez-Grande Flecha, Agustín Fernández Cisnal, Fabrizio Ugo, Jesús M Jiménez Mazuecos, Pierluigi Omedè, Marco Pavani, Pedro A Villablanca, Boshra F Louka, Antonio Fernández-Ortiz
Coronary artery aneurysm is defined as a coronary dilation that exceeds the diameter of adjacent segments or the diameter of the patient's largest normal coronary vessel by 1.5×. It is an uncommon disease that has been diagnosed with increasing frequency since the widespread appearance of coronary angiography. The published incidence varies from 1.5% to 5%, suggesting male dominance and a predilection for the right coronary artery. Although several causes have been described, atherosclerosis accounts for ≥50% of coronary aneurysms in adults...
March 24, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28337466/in-vitro-and-ex-vivo-approaches-to-evaluate-next-generation-tobacco-and-non-tobacco-products-on-human-blood-platelets
#11
Sherry L Spinelli, Katie L Lannan, Shannon G Loelius, Richard P Phipps
Human blood platelets are major hemostatic regulators in the circulation and important in the mediation of chronic inflammation and immunomodulation. They are key elements that promote cardiovascular pathogenesis that leads to atherosclerosis, thrombosis, myocardial infarction, and stroke. New information on tobacco use and platelet dysregulation shows that these highly understudied vascular cells are dysregulated by tobacco smoke. Thus, platelet function studies should be an important consideration for the evaluation of existing and next-generation tobacco and non-tobacco products...
March 1, 2017: Appl In Vitro Toxicol
https://www.readbyqxmd.com/read/28337456/comparison-of-the-protective-effects-of-individual-components-of-particulated-trans-sialidase-ptcts-ptc-and-ts-against-high-cholesterol-diet-induced-atherosclerosis-in-rabbits
#12
Shérrira M Garavelo, Maria de Lourdes Higuchi, Jaqueline J Pereira, Marcia M Reis, Joyce T Kawakami, Renata N Ikegami, Suely A P Palomino, Nilsa S Y Wadt, Abdelali Agouni
Previous studies showed the presence of Mycoplasma pneumoniae (M. pneumoniae) and membrane-shed microparticles (MPs) in vulnerable atherosclerotic plaques. H&S Science and Biotechnology developed PTCTS, composed by natural particles from medicinal plants (PTC) combined with trans-Sialidase (TS), to combat MPs and Mycoplasma pneumoniae. Our aim was to determine the effects of the different components of PTCTS in a rabbit model of atherosclerosis. Rabbits were fed with high cholesterol diet for 12 weeks and treated during the last 6 weeks with either vehicle, PTC, TS, or PTCTS...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28337290/down-regulation-of-hsa-mir-148b-inhibits-vascular-smooth-muscle-cells-proliferation-and-migration-by-directly-targeting-hsp90-in-atherosclerosis
#13
Xinqi Zhang, Hua Shi, Yuanlin Wang, Jianxin Hu, Zhaolin Sun, Shuxiong Xu
The abnormal proliferation and migration of vascular smooth muscle cells (VSMCs) are crucial pathological processes that are involved in atherosclerosis. Growing evidence suggests that microRNAs (miRNAs) play critical roles in VSMCs functions. Here, we analyzed the expression of four atherosclerosis-related miRNAs and found that hsa-miR-148b was significantly down-regulated in plaques from atherosclerotic patients compared to a healthy control group. The restoration of hsa-miR-148b function in cells transfected with a hsa-miR-148b mimicmarkedly inhibited VSMCs proliferation and migration compared to a hsa-miR-148b mimic control...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28336557/catechins-as-potential-mediators-of-cardiovascular-health
#14
REVIEW
Daniel R Mangels, Emile R Mohler
The impact of diet on cardiovascular disease has become an increasingly relevant topic as ongoing epidemiological evidence continues to demonstrate clear associations with disease burden and mortality. Certain diets, such as those high in sodium and saturated fat, are associated with cardiovascular disease states, while other diets can be cardioprotective. However, there is limited knowledge on how the micro- and macronutrients within such cardioprotective diets afford their benefits. One such micronutrient is the catechin class, which are naturally occurring compounds in plant foods, such as teas, cocoa, wine, pears, and apples...
March 23, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28336556/human-microrna-548p-decreases-hepatic-apolipoprotein-b-secretion-and-lipid-synthesis
#15
Liye Zhou, M Mahmood Hussain
OBJECTIVE: MicroRNAs (miRs) play important regulatory roles in lipid metabolism. Apolipoprotein B (ApoB), as the only essential scaffolding protein in the assembly of very-low-density lipoproteins, is a target to treat hyperlipidemia and atherosclerosis. We aimed to find out miRs that reduce apoB expression. APPROACH AND RESULTS: Bioinformatic analyses predicted that hsa-miR-548p can interact with apoB mRNA. MiR-548p or control miR was transfected in human and mouse liver cells to test its role in regulating apoB secretion and mRNA expression levels...
March 23, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28336201/a-facile-method-for-isolation-of-recombinant-human-apolipoprotein-a-i-from-e-coli
#16
Nikita Ikon, Jennifer Shearer, Jianfang Liu, Jesse J Tran, ShiBo Feng, Ayako Kamei, Jennifer A Beckstead, Robert S Kiss, Paul M Weers, Gang Ren, Robert O Ryan
Apolipoprotein (apo) A-I is the major protein component of high-density lipoprotein (HDL) and plays key roles in the Reverse Cholesterol Transport pathway. In the past decade, reconstituted HDL (rHDL) has been employed as a therapeutic agent for treatment of atherosclerosis. The ability of rHDL to promote cholesterol efflux from peripheral cells has been documented to reduce the size of atherosclerotic plaque lesions. However, development of apoA-I rHDL-based therapeutics for human use requires a cost effective process to generate an apoA-I product that meets "Good Manufacturing Practice" standards...
March 20, 2017: Protein Expression and Purification
https://www.readbyqxmd.com/read/28335408/n-hexane-insoluble-fraction-of-plantago-lanceolata-exerts-anti-inflammatory-activity-in-mice-by-inhibiting-cyclooxygenase-2-and-reducing-chemokines-levels
#17
Nanang Fakhrudin, Eny Dwi Astuti, Rini Sulistyawati, Djoko Santosa, Ratna Susandarini, Arief Nurrochmad, Subagus Wahyuono
Inflammation is involved in the progression of many disorders, such as tumors, arthritis, gastritis, and atherosclerosis. Thus, the development of new agents targeting inflammation is still challenging. Medicinal plants have been used traditionally to treat various diseases including inflammation. A previous study has indicated that dichloromethane extract of P. lanceolata leaves exerts anti-inflammatory activity in an in vitro model. Here, we examined the in vivo anti-inflammatory activities of a n-hexane insoluble fraction of P...
March 13, 2017: Scientia Pharmaceutica
https://www.readbyqxmd.com/read/28334721/microrna-9-inhibits-nlrp3-inflammasome-activation-in-human-atherosclerosis-inflammation-cell-models-through-the-jak1-stat-signaling-pathway
#18
Yue Wang, Zhihua Han, Yuqi Fan, Junfeng Zhang, Kan Chen, Lin Gao, Huasu Zeng, Jiatian Cao, Changqian Wang
BACKGROUND/AIMS: MicroRNA-9 (miR-9) is involved in inflammatory reaction in atherosclerosis; however, its function and regulatory mechanisms remain unclear. We aimed to uncover the exact roles of miR-9 and downstream signaling pathways using in vitro human atherosclerosis models. METHODS: We used oxidized low-density lipoprotein (oxLDL)-stimulated human THP-1 derived macrophages, oxLDL-stimulated human primary peripheral blood monocytes and lipopolysaccharides (LPS) or Alum-stimulated human THP-1 derived macrophages as in vitro atherosclerosis inflammation models...
March 27, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28334718/sex-differences-do-not-exist-in-outcomes-among-stroke-patients-with-intracranial-atherosclerosis-in-china-subgroup-analysis-from-the-chinese-intracranial-atherosclerosis-study
#19
Yuehua Pu, Na Wei, Dandan Yu, Yilong Wang, Xinying Zou, Yannie O Y Soo, Yuesong Pan, Thomas W H Leung, Lawrence K S Wong, Yongjun Wang, Liping Liu
BACKGROUND: To date, sex difference in outcomes among patients with intracranial atherosclerosis (ICAS) has rarely been discussed in China as well as in the world. This study aimed to estimate the sex difference in outcomes among patients with ICAS in Chinese cerebral ischemia patients. METHODS: We analyzed 1,335 men and women with ICAS who were enrolled in the Chinese Intracranial Atherosclerosis study. They were followed-up for ischemic stroke recurrence, any cause of death, cerebral vascular events (including transient ischemic attack, ischemic and hemorrhagic stroke), combined end points (including cerebral vascular events, angina or myocardial infarction, pulmonary embolism, peripheral vascular events), and unfavorable outcome (modified Rankin scale score of 3-6) at 1 year...
March 24, 2017: Neuroepidemiology
https://www.readbyqxmd.com/read/28333905/-the-inflammatory-processes-in-atherogenesis
#20
Natalia Cichoń, Dominika Lach, Angela Dziedzic, Michał Bijak, Joanna Saluk
Atherogenesis is the process of atherosclerotic plaque formation, leading to coronary artery heart disease. This process involves immune cells, mainly T and B cells, monocytes and macrophages. The process of atherogenesis is induced by inflammatory damage of endothelial cells. The characteristic construction features of the atherosclerotic plaque is a predisposing factor for acute coronary syndromes. The accumulation of inflammatory cells in the artery inner membrane enhances the local inflammatory process due to the secretion of reactive oxygen species, inflammatory cytokines and metalloproteinases, which accelerate the development of atherosclerotic lesions in the arteries...
March 21, 2017: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
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