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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/28324760/trpv1-agonism-inhibits-endothelial-cell-inflammation-via-activation-of-enos-no-pathway
#3
Youping Wang, Lin Cui, Hui Xu, Suxiao Liu, Feiyun Zhu, Fengna Yan, Si Shen, Mingjun Zhu
BACKGROUND AND AIMS: Transient receptor potential vanilloid type 1 channel (TRPV1) is found to be expressed in endothelial cells (ECs) and activate endothelial nitric oxide synthase (eNOS). Recent studies implicate TRPV1 in attenuating inflammatory responses. However, the mechanisms underlying the beneficial effects remain unclear. In this study, we investigated whether TRPV1 suppresses inflammatory responses of ECs via eNOS/NO pathway. METHODS: Human umbilical vein endothelial cells (HUVECs) and renal microvascular endothelial cells (MVECs) isolated from deoxycorticosterone (DOCA)-salt hypertensive mice were cultured in the presence of capsaicin (CAP, a specific TRPV1 agonist) with or without the specific inhibitor of TRPV1, NOS, or Ca(2+)-dependent phosphatidylinositol 3-kinase (PI3K)/Akt pathway, before lipopolysaccharide (LPS) stimulation...
March 10, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28334637/on-the-non-linear-association-between-serum-uric-acid-levels-and-all-cause-mortality-rate-in-patients-with-type-2-diabetes-mellitus
#4
Olga Lamacchia, Andrea Fontana, Antonio Pacilli, Massimiliano Copetti, Stefania Fariello, Monia Garofolo, Giuseppe Penno, Vincenzo Trischitta, Salvatore De Cosmo, Mauro Cignarelli
BACKGROUND AND AIMS: High levels of serum uric acid (SUA) are associated with increased mortality risk in the general population. Contrasting results are available in people with diabetes. The aim of our study was to investigate the association and its functional form between SUA and all cause-mortality in patients with type 2 diabetes mellitus (T2DM). METHODS: We studied three cohorts of patients with T2DM: Gargano Mortality Study, Foggia Mortality Study, Pisa Mortality Study...
March 9, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28319871/autoantibodies-and-immune-complexes-to-oxidation-specific-epitopes-and-progression-of-aortic-stenosis-results-from-the-astronomer-trial
#5
Romain Capoulade, Kwan L Chan, Patrick Mathieu, Yohan Bossé, Jean G Dumesnil, James W Tam, Koon K Teo, Xiaohong Yang, Joseph L Witztum, Benoit J Arsenault, Jean-Pierre Després, Philippe Pibarot, Sotirios Tsimikas
BACKGROUND AND AIMS: Elevated levels of lipoprotein(a) [Lp(a)] and oxidized phospholipids on apolipoprotein B-100 (OxPL-apoB) predict the progression of pre-existing mild-to-moderate calcific aortic valve stenosis (CAVS). Whether indirect markers of oxidation-specific epitopes (OSE) are also predictive is not known. The association between IgG and IgM autoantibodies and malondialdehyde-modified low density lipoprotein (MDA-LDL) and IgG and IgM apolipoprotein B immune complexes (apoB-IC), and the hemodynamic progression rate of CAVS was determined in the ASTRONOMER (Aortic Stenosis Progression Observation: Measuring Effects of Rosuvastatin, NCT00800800) trial...
March 9, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28298251/impact-of-psychological-health-on-peripheral-endothelial-function-and-the-hpa-axis-activity-in-healthy-adolescents
#6
Yun Chen, Walter Osika, Frida Dangardt, Peter Friberg
BACKGROUND AND AIMS: The development of adolescence psychological health over a 3-year period and its relationship to peripheral endothelial function and the hypothalamic-pituitary-adrenal (HPA)-axis activity were examined in a cohort of healthy adolescents in a longitudinal study. METHODS: A total of 162 adolescents (94 females) participated in both baseline (mean age 14.5 ± 1 years) and three-year follow-up studies. Psychological health was evaluated by self-report using the Beck Youth Inventories of Emotional and Social Impairment and the psychosomatic problem scale...
March 9, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28298252/reduced-circulating-stem-cells-associate-with-excess-fasting-and-post-load-nefa-exposure-in-healthy-adults-with-normal-glucose-tolerance
#7
Gian Paolo Fadini, Andrea Tura, Giovanni Pacini, Angelo Avogaro, Saula Vigili de Kreutzenberg
BACKGROUND AND AIMS: Reduced levels of circulating stem cells (CSCs) predict cardiovascular events and death, but the factors underlying variability of CSCs in healthy adults are mostly unknown. Previous studies detected associations of CSCs with glucose tolerance or insulin resistance, while the role of fatty acids has been overlooked. We herein aimed to describe in better detail the metabolic abnormalities associated with a reduced CSC level. METHODS: This was a cross-sectional study on 94 healthy male and female individuals with normal glucose tolerance, aged 18-65 years...
March 6, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28292514/similarities-and-differences-between-coronary-heart-disease-and-stroke-in-the-associations-with-cardiovascular-risk-factors-the-japan-collaborative-cohort-study
#8
Masaaki Matsunaga, Hiroshi Yatsuya, Hiroyasu Iso, Kentaro Yamashita, Yuanying Li, Kazumasa Yamagishi, Naohito Tanabe, Yasuhiko Wada, Chaochen Wang, Atsuhiko Ota, Koji Tamakoshi, Akiko Tamakoshi
BACKGROUND AND AIMS: Coronary heart disease (CHD) and stroke have common risk factors, but some of these differ in the magnitude or direction of associations between CHD and stroke. We assessed whether the impact of each risk factor differed between CHD and stroke mortality in Asians. METHODS: In total, 104 910 subjects aged 40-79 years without histories of cancer, CHD and stroke at baseline were followed between 1988 and 2009. Competing-risks analysis was used to test for differences in the associations of each risk factor with two endpoints (CHD and stroke)...
March 6, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28324761/chocolate-consumption-and-risk-of-stroke-among-men-and-women-a-large-population-based-prospective-cohort-study
#9
Jia-Yi Dong, Hiroyasu Iso, Kazumasa Yamagishi, Norie Sawada, Shoichiro Tsugane
BACKGROUND AND AIMS: Chocolate consumption may have a beneficial effect on cardiovascular health, but evidence from prospective cohort studies is still limited. We aimed to examine the prospective associations between chocolate consumption and risk of stroke among men and women in a large population-based cohort. METHODS: A total of 38,182 men and 46,415 women aged 44-76 years, and free of cardiovascular disease, diabetes, and cancer at baseline in 1995 and 1998, were followed up until the end of 2009 and 2010, respectively...
March 4, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28292668/free-dna-precipitates-calcium-phosphate-apatite-crystals-in-the-arterial-wall-in%C3%A2-vivo
#10
Raphaël Coscas, Marie Bensussan, Marie-Paule Jacob, Liliane Louedec, Ziad Massy, Jeremy Sadoine, Michel Daudon, Catherine Chaussain, Dominique Bazin, Jean-Baptiste Michel
BACKGROUND AND AIMS: The arterial wall calcium score and circulating free DNA levels are now used in clinical practice as biomarkers of cardiovascular risk. Calcium phosphate apatite retention in the arterial wall necessitates precipitation on an anionic platform. Here, we explore the role of tissue-free DNA as such a platform. METHODS: The first step consisted of histological observation of samples from human and rat calcified arteries. Various stains were used to evaluate colocalization of free DNA with calcified tissue (alizarin red, fluorescent Hoechst, DNA immunostaining and TUNEL assay)...
March 4, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28285092/visceral-to-subcutaneous-fat-ratio-is-independently-related-to-small-and-large-cerebrovascular-lesions-even-in-healthy-subjects
#11
Satoshi Higuchi, Yusuke Kabeya, Kiyoe Kato
BACKGROUND AND AIMS: The severity of obesity is evaluated by visceral-to-subcutaneous fat ratio (VS ratio), which may be useful for predicting atherosclerosis. However, it is unclear how VS ratio affects different types of cerebrovascular lesions. This study was conducted to evaluate the clinical impact of visceral fat accumulation on the cerebrovascular lesions. METHODS: This cross-sectional study included 980 apparently healthy Japanese adults who underwent a health check-up program focused toward atherosclerosis, between 2011 and 2014...
March 2, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28279402/y-chromosome-and-cardiovascular-risk-what-are-we-missing
#12
EDITORIAL
Konstantinos Voskarides
No abstract text is available yet for this article.
March 1, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28274477/hypertension-in-children-knowledge-is-the-road-to-prevention
#13
EDITORIAL
Claudio Borghi
No abstract text is available yet for this article.
March 1, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28285093/associations-of-central-aortic-pressure-and-brachial-blood-pressure-with-flow-mediated-dilatation-in-apparently-healthy-japanese-men-the-circulatory-risk-in-communities-study-circs
#14
Keyang Liu, Renzhe Cui, Ehab S Eshak, Meishan Cui, Jia-Yi Dong, Masahiko Kiyama, Takeo Okada, Akihiko Kitamura, Mitsumasa Umesawa, Kazumasa Yamagishi, Hironori Imano, Tetsuya Ohira, Hiroyasu Iso
BACKGROUND AND AIMS: Endothelial dysfunction is considered the first stage in the development of atherosclerosis and cardiovascular disease, and brachial flow-mediated dilation (FMD) is a measure of endothelial function. It is uncertain which of central systolic aortic pressure (CAP) or brachial systolic blood pressure (SBP) is more strongly associated with FMD. Therefore, we examined the correlations of CAP and SBP with FMD in Japanese men. METHODS: The study subjects comprised 507 male volunteers aged 30-79 years that were residents in two communities under the Circulatory Risk in Communities Study (CIRCS) between 2013 and 2015...
February 27, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28279831/inverse-relationship-between-the-body-mass-index-and-severity-of-carotid-siphon-calcifications-another-obesity-paradox-results-from-the-atahualpa-project
#15
Oscar H Del Brutto, Robertino M Mera
BACKGROUND AND AIMS: The importance of the obesity paradox in the intracranial vasculature has not been explored. We assessed whether the body mass index (BMI) correlates with severity of carotid siphon calcifications (CSC) in community-dwelling adults. METHODS: Using a population-based study design, Atahualpa residents aged ≥40 years underwent head computed tomography (CT) for assessment of CSC. We evaluated the association between BMI and severity of CSC (dependent variable) using regression models adjusted for demographics and cardiovascular risk factors...
February 27, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28270321/breast-arterial-calcification-for-personalized-cardiovascular-risk-assessment-where-do-we-stand
#16
EDITORIAL
Miguel Cainzos-Achirica, Rajesh Tota-Maharaj
No abstract text is available yet for this article.
February 27, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28286252/pkc-epsilon-and-tlr4-synergistically-regulate-resistin-mediated-inflammation-in-human-macrophages
#17
Mary C Zuniga, Gayatri Raghuraman, Elizabeth Hitchner, Cornelia Weyand, William Robinson, Wei Zhou
BACKGROUND AND AIMS: Resistin has been associated with atherosclerotic inflammation and cardiovascular complications. We and others have previously shown that PKC-epsilon (PKCε) is involved in resistin-induced smooth muscle cell (VSMC) dysfunction at a high pathological concentration. This study aimed to evaluate the role and potential pathways of resistin at a physiological concentration, in atherosclerosis-related inflammation. METHODS: Plasma from patients with atherosclerosis was analyzed for resistin concentration...
February 24, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28282560/genome-wide-meta-analysis-identifies-novel-loci-of-plaque-burden-in-carotid-artery
#18
Janne Pott, Ralph Burkhardt, Frank Beutner, Katrin Horn, Andrej Teren, Holger Kirsten, Lesca M Holdt, Gerhard Schuler, Daniel Teupser, Markus Loeffler, Joachim Thiery, Markus Scholz
BACKGROUND AND AIMS: Carotid artery plaque is an established marker of subclinical atherosclerosis and common patho-mechanisms with coronary artery disease (CAD) are hypothesized. We aimed to identify genetic variants associated with carotid plaque and to examine the potential shared genetic basis with CAD. METHODS: After investigating the reliability of plaque detection, we performed a genome-wide meta-association study in two independent cohorts (LIFE-Adult, n = 4037 and LIFE-Heart, n = 3152) for carotid plaque score (PS), defined as the sum of the plaque load of common carotid artery and carotid bulb...
February 24, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28282559/platelets-and-circulating-cd34-positive-cells-as-an-indicator-of-the-activity-of-the-vicious-cycle-between-hypertension-and-endothelial-dysfunction-in-elderly-japanese-men
#19
Yuji Shimizu, Shimpei Sato, Jun Koyamatsu, Hirotomo Yamanashi, Mako Nagayoshi, Koichiro Kadota, Shin-Ya Kawashiri, Keita Inoue, Yasuhiro Nagata, Takahiro Maeda
BACKGROUND AND AIMS: The bi-directional association between hypertension and endothelial dysfunction (vicious cycle) is crucial for the development of cardiovascular disease. Since platelets and circulating CD34-positive cells have been reported to contribute to vascular repair (endothelial repair and the development of atherosclerosis), these two factors could act as an indicator for the activity of this vicious cycle. METHODS: We conducted a cross-sectional study of 580 Japanese men aged 60-69 years who underwent an annual health check-up...
February 24, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28279834/in-situ-afm-imaging-of-apolipoprotein-a-i-directly-derived-from-plasma-hdl
#20
Chaoye Gan, Zhexuan Wang, Yong Chen
BACKGROUND AND AIMS: The major apolipoproteins of plasma lipoproteins play vital roles in the structural integrity and physiological functions of lipoproteins. More than ten structural models of apolipoprotein A-I (apoA-I), the major apolipoprotein of high-density lipoprotein (HDL), have been developed successively. In these models, apoA-I was supposed to organize in a ring-shaped form. To date, however, there is no direct evidence under physiological condition. METHODS: Here, atomic force microscopy (AFM) was used to in situ visualize the organization of apoA-I, which was exposed via depletion of the lipid component of plasma HDL pre-immobilized on functionalized mica sheets...
February 24, 2017: Atherosclerosis
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