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Inflammation, atherosclerosis

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https://www.readbyqxmd.com/read/28734203/exenatide-mitigated-diet-induced-vascular-aging-and-atherosclerotic-plaque-growth-in-apoe-deficient-mice-under-chronic-stress
#1
Guang Yang, Yanna Lei, Aiko Inoue, Limei Piao, Lina Hu, Haiying Jiang, Takeshi Sasaki, Hongxian Wu, Wenhu Xu, Chenglin Yu, Guangxian Zhao, Shinyu Ogasawara, Kenji Okumura, Masafumi Kuzuya, Xian-Wu Cheng
BACKGROUND AND AIMS: Exposure to psychosocial stress is a risk factor for cardiovascular disorders. Because the glucagon-like peptide-1 (GLP-1) receptor (GLP-1R) agonist prevents cardiovascular injury, we investigated the beneficial effects and mechanism of the GLP-1 analogue exenatide on stress-related vascular senescence and atherosclerosis in apolipoprotein E-deficient (ApoE(-/-)) mice fed a high-fat (HF) diet. METHODS: ApoE(-/-) mice fed the HF diet were assigned to non-stressed and immobilized-stress groups for 12 weeks...
July 13, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28729463/dietary-pufas-attenuate-nlrp3-inflammasome-activation-via-enhancing-macrophage-autophagy
#2
Lulu Shen, Yan Yang, Tiantong Ou, Chia-Chi C Key, Sarah H Tong, Russel C Sequeira, Jonathan M Nelson, Yan Nie, Zhan Wang, Elena Boudyguina, Swapnil V Shewale, Xuewei Zhu
Dietary PUFAs reduce atherosclerosis and macrophage inflammation, but how NLRP3 inflammasome activation and autophagy influence PUFA-mediated atheroprotection is poorly understood. We fed Ldlr-/- mice diets containing 10% (calories) palm oil (PO) and 0.2% cholesterol, supplemented with an additional 10% of calories as PO, fish oil (FO), echium oil (EO, containing 18:4 n-3), or borage oil (BO, containing 18:3 n-6). Inflammasome activation, autophagic flux, and mitochondrial function were measured in peritoneal macrophages, blood monocytes, or liver from diet-fed mice...
July 20, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28726277/aged-garlic-extract-suppresses-inflammation-in-apolipoprotein-e-knockout-mice
#3
Naoaki Morihara, Atsuko Hino, Satomi Miki, Miyuki Takashima, Jun-Ichiro Suzuki
SCOPE: Chronic inflammation plays a major role in the formation and progression of atherosclerotic plaques. To clarify the mode of action of aged garlic extract (AGE) to retard atherosclerosis, we investigated whether AGE suppresses the inflammation in apolipoprotein E-knockout (ApoE-KO) mice. METHODS AND RESULTS: ApoE-KO mice were fed standard diet with or without 3% AGE for 12 weeks. AGE feeding inhibited the progression of atherosclerotic lesion by 27% and reduced the level of C-reactive protein (CRP) and thromboxane B2 (TXB2 ), a marker of platelet activation, in serum by 39% and 33%, respectively, compared to ApoE-KO mice without AGE treatment...
July 20, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28724841/sphingosine-1-phosphate-and-atherosclerosis
#4
Makoto Kurano, Yutaka Yatomi
Sphingosine 1-phosphate (S1P) is a potent lipid mediator that works on five kinds of S1P receptors located on the cell membrane. In the circulation, S1P is distributed to HDL, followed by albumin. Since S1P and HDL share several bioactivities, S1P is believed to be responsible for the pleiotropic effects of HDL. Plasma S1P levels are reportedly lower in subjects with coronary artery disease, suggesting that S1P might be deeply involved in the pathogenesis of atherosclerosis. In basic experiments, however, S1P appears to possess both pro-atherosclerotic and anti-atherosclerotic properties; for example, S1P possesses anti-apoptosis, anti-inflammation, and vaso-relaxation properties and maintains the barrier function of endothelial cells, while S1P also promotes the egress and activation of lymphocytes and exhibits pro-thrombotic properties...
July 20, 2017: Journal of Atherosclerosis and Thrombosis
https://www.readbyqxmd.com/read/28724840/exposure-to-parental-smoking-in-childhood-is-associated-with-high-c-reactive-protein-in-adulthood-the-cardiovascular-risk-in-young-finns-study
#5
Di Wang, Markus Juonala, Jorma S A Viikari, Feitong Wu, Nina Hutri-Kähönen, Olli T Raitakari, Costan G Magnussen
AIM: Children exposed to parental smoking are at increased long-term risk of subclinical atherosclerosis in adulthood. However, it has not been quantified if exposure to parental smoking in childhood is associated with adult systemic inflammation. This study aimed to determine if childhood exposure to parental smoking was associated with high-sensitivity C-reactive protein (hsCRP) in adulthood. METHODS: This longitudinal analysis of 2,511 participants used data from the Cardiovascular Risk in Young Finns Study, a prospective cohort of Finnish children...
July 20, 2017: Journal of Atherosclerosis and Thrombosis
https://www.readbyqxmd.com/read/28724798/hepatic-jak2-protects-against-atherosclerosis-through-circulating-igf-1
#6
Tharini Sivasubramaniyam, Stephanie A Schroer, Angela Li, Cynthia T Luk, Sally Yu Shi, Rickvinder Besla, David W Dodington, Adam H Metherel, Alex P Kitson, Jara J Brunt, Joshua Lopes, Kay-Uwe Wagner, Richard P Bazinet, Michelle P Bendeck, Clinton S Robbins, Minna Woo
Atherosclerosis is considered both a metabolic and inflammatory disease; however, the specific tissue and signaling molecules that instigate and propagate this disease remain unclear. The liver is a central site of inflammation and lipid metabolism that is critical for atherosclerosis, and JAK2 is a key mediator of inflammation and, more recently, of hepatic lipid metabolism. However, precise effects of hepatic Jak2 on atherosclerosis remain unknown. We show here that hepatic Jak2 deficiency in atherosclerosis-prone mouse models exhibited accelerated atherosclerosis with increased plaque macrophages and decreased plaque smooth muscle cell content...
July 20, 2017: JCI Insight
https://www.readbyqxmd.com/read/28724635/heterodimers-of-the-transcriptional-factors-nfatc3-and-fosb-mediate-tissue-factor-expression-for-15-s-hydroxyeicosatetraenoic-acid-induced-monocyte-trafficking
#7
Sivareddy Kotla, Nikhlesh K Singh, Daniel Kirchhofer, Gadiparthi N Rao
Tissue factor (TF) is expressed in vascular and nonvascular tissues and functions in several pathways, including embryonic development, inflammation, and cell migration. Many risk factors for atherosclerosis, including hypertension, diabetes, obesity, and smoking, increase TF expression. To better understand the TF-related mechanisms in atherosclerosis, here we investigated the role of 12/15-lipoxygenase (12/15-LOX) in TF expression. 15(S)-hydroxyeicosatetraenoic acid (15(S)-HETE), the major product of human 15-LOXs 1 and 2, induced TF expression and activity in a time-dependent manner in the human monocytic cell line THP1...
July 19, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28722106/anti-inflammatory-effects-of-exercise-role-in-diabetes-and-cardiovascular-disease
#8
REVIEW
Bente Klarlund Pedersen
BACKGROUND: Persistent inflammation is involved in the pathogenesis of chronic diseases such as type 2 diabetes mellitus (T2DM) and cardiovascular disease (CVD). AIMS: The aim of this review was to provide the reader with an update of the mechanisms whereby exercise-induced cytokines may impact cardiometabolic diseases. RESULTS: Evidence exists that interleukin (IL)-1β is involved in pancreatic β-cell damage, whereas TNF-α is a key molecule in peripheral insulin resistance...
July 19, 2017: European Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28721980/risk-of-coronary-artery-disease-in-celiac-disease-population
#9
Rama D Gajulapalli, Deepak J Pattanshetty
BACKGROUND/AIMS: Celiac disease (CD), a chronic autoimmune condition, is associated with systemic inflammation capable of causing extra intestinal manifestations. Chronic inflammatory process has been implicated in the pathogenesis of accelerated atherosclerosis. Studies examining the burden of coronary artery disease (CAD) in patients with CD are lacking. We evaluated the prevalence of CAD in patients with CD. PATIENTS AND METHODS: Electronic health records from different health care systems were obtained utilizing a Health Insurance Portability and Accountability Act-compliant, patient de-identified web application...
July 2017: Saudi Journal of Gastroenterology: Official Journal of the Saudi Gastroenterology Association
https://www.readbyqxmd.com/read/28721158/potential-novel-biomarkers-of-cardiovascular-dysfunction-and-disease-cardiotrophin-1-adipokines-and-galectin-3
#10
Simona Hogas, Stefana C Bilha, Dumitru Branisteanu, Mihai Hogas, Abduzhappar Gaipov, Mehmet Kanbay, Adrian Covic
Cardiovascular disease is one of the main burdens of healthcare systems worldwide. Nevertheless, assessing cardiovascular risk in both apparently healthy individuals and low/high-risk patients remains a difficult issue. Already established biomarkers (e.g. brain natriuretic peptide, troponin) have significantly improved the assessment of major cardiovascular events and diseases but cannot be applied to all patients and in some cases do not provide sufficiently accurate information. In this context, new potential biomarkers that reflect various underlying pathophysiological cardiac and vascular modifications are needed...
June 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/28721154/obesity-and-inflammation-the-linking-mechanism-and-the-complications
#11
Mohammed S Ellulu, Ismail Patimah, Huzwah Khaza'ai, Asmah Rahmat, Yehia Abed
Obesity is the accumulation of abnormal or excessive fat that may interfere with the maintenance of an optimal state of health. The excess of macronutrients in the adipose tissues stimulates them to release inflammatory mediators such as tumor necrosis factor α and interleukin 6, and reduces production of adiponectin, predisposing to a pro-inflammatory state and oxidative stress. The increased level of interleukin 6 stimulates the liver to synthesize and secrete C-reactive protein. As a risk factor, inflammation is an imbedded mechanism of developed cardiovascular diseases including coagulation, atherosclerosis, metabolic syndrome, insulin resistance, and diabetes mellitus...
June 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/28715072/association-of-mean-platelet-volume-with-presence-of-non-viable-myocardium-in-ischemic-cardiomyopathy
#12
Semi Ozturk, Ahmed Seyfettin Gürbüz, Süleyman Çağan Efe, Mehmet Fatih Yılmaz, Özden Savaş Den Hartigh, Ferahnaz Çınaral Sayın, Cevat Kırma
BACKGROUND AND AIMS: Parameters derived from complete blood count such as mean platelet volume (MPV), neutrophil to lymphocyte (NLR), platelet to lymphocyte (PLR) are recently proposed as measures of inflammation in addition to C-reactive protein (CRP), a classical inflammatory marker. Significant association of these parameters with atherosclerosis and complications have increasingly been reported. Our aim is to evaluate relationship between these parameters and presence of myocardial viability assessed with positron emission tomography (PET) in patients with ischemic cardiomyopathy...
July 17, 2017: Kardiologia Polska
https://www.readbyqxmd.com/read/28714271/influence-of-residual-renal-function-in-carotid-modeling-as-a-marker-of-early-atherosclerosis-in-dialysis-patients
#13
Merita Rroji, Nereida Spahia, Saimir Seferi, Myftar Barbullushi, Goce Spasovski
Atherosclerosis is frequently present in patients with chronic kidney disease (CKD) treated with dialysis. We evaluated the association between residual renal function (RRF), phosphate level, inflammation and other risk factors in carotid modeling as a marker of early atherosclerosis in peritoneal dialysis (PD) compared with hemodialysis (HD) patients. We studied 39 stable PD and 53 HD patients on renal replacement therapy (RRT) for 3 to 36 months duration. B-mode ultrasonography was used to determine carotid artery intima media thickness (CIMT)...
July 17, 2017: Therapeutic Apheresis and Dialysis
https://www.readbyqxmd.com/read/28713935/curcumin-pretreatment-protects-against-pm2-5%C3%A2-induced-oxidized-low%C3%A2-density-lipoprotein%C3%A2-mediated-oxidative-stress-and-inflammation-in-human-microvascular-endothelial-cells
#14
Jun Shi, Huiping Deng, Min Zhang
A previous study demonstrated that particulate matter (≤2.5 µm in diameter; PM2.5) may promote atherosclerosis. However, the underlying mechanisms of PM2.5 in human microvascular endothelial cells (HMEC‑1) remain to be elucidated. It has been reported that inflammation and oxidative stress can be reduced by curcumin, and in the present study, the aim was to investigate the protective effects of curcumin on PM2.5‑induced oxidative stress and inflammatory response in HMEC‑1. HMEC‑1 were stimulated with curcumin and PM2...
July 6, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28712870/tissue-factor-pathway-inhibitor-attenuates-er-stress-induced-inflammation-in-human-m2-polarized-macrophages
#15
Sandra Espada, Benedicte Stavik, Sverre Holm, Ellen Lund Sagen, Vigdis Bjerkeli, Mona Skjelland, Tuva B Dahl, Terje Espevik, Sandip Kanse, Per Morten Sandset, Grethe Skretting, Bente Halvorsen
Endoplasmic reticulum (ER) stress has been shown to play a key role during the initiation and clinical progression of the cardiovascular diseases, such as atherosclerosis. We have recently shown that expression of tissue factor pathway inhibitor (TFPI) in human monocyte-derived macrophages (MDMs) was induced by cholesterol crystals (CC). In the present study we aimed to determine the role of TFPI under ER stress conditions using human MDMs. qRT-PCR and immunohistochemistry analysis were performed to determine the presence of the ER stress marker CCAAT/enhancer binding protein homologous protein (CHOP) and TFPI in a human carotid plaque material and also in human MDMs polarized into pro-inflammatory M1 or anti-inflammatory M2 populations...
July 13, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28712557/age-modulates-the-relationship-between-platelet-to-lymphocyte-ratio-and-coronary-artery-disease
#16
Issada Trakarnwijitr, Bobby Li, Heath Adams, Jamie Layland, John Garlick, Andrew Wilson
BACKGROUND: Thrombocytosis and inflammation are vital elements in the pathogenesis of atherosclerosis. The platelet-to-lymphocyte ratio (PLR) is a novel biomarker that combines these parameters and has been shown to be associated with cardiovascular disease (CVD). This study aimed to determine whether PLR correlates with coronary artery disease (CAD) in high-risk patients, and if the relationship is affected by age. METHODS: Consecutive patients referred for coronary angiogram were evaluated (n=822)...
July 8, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28710476/inflammatory-pain-control-by-blocking-oxidized-phospholipid-mediated-trp-channel-activation
#17
Beatrice Oehler, Katrin Kistner, Corinna Martin, Jürgen Schiller, Rafaela Mayer, Milad Mohammadi, Reine-Solange Sauer, Milos R Filipovic, Francisco R Nieto, Jan Kloka, Diana Pflücke, Kerstin Hill, Michael Schaefer, Marzia Malcangio, Peter W Reeh, Alexander Brack, Robert Blum, Heike L Rittner
Phospholipids occurring in cell membranes and lipoproteins are converted into oxidized phospholipids (OxPL) by oxidative stress promoting atherosclerotic plaque formation. Here, OxPL were characterized as novel targets in acute and chronic inflammatory pain. Oxidized 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine (OxPAPC) and its derivatives were identified in inflamed tissue by mass spectrometry and binding assays. They elicited calcium influx, hyperalgesia and induced pro-nociceptive peptide release...
July 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28710289/nutritional-modulation-of-metabolic-inflammation
#18
REVIEW
Anna M Kirwan, Yvonne M Lenighan, Marcella E O'Reilly, Fiona C McGillicuddy, Helen M Roche
Metabolic inflammation is a very topical area of research, wherein aberrations in metabolic and inflammatory pathways probably contribute to atherosclerosis, insulin resistance (IR) and type 2 diabetes. Metabolic insults arising from obesity promote inflammation, which in turn impedes insulin signalling and reverse cholesterol transport (RCT). Key cells in the process are metabolically activated macrophages, which up-regulate both pro- and anti-inflammatory pathways in response to lipid spillover from adipocytes...
July 14, 2017: Biochemical Society Transactions
https://www.readbyqxmd.com/read/28710286/how-tetraspanins-shape-endothelial-and-leukocyte-nano-architecture-during-inflammation
#19
REVIEW
Jonas Franz, Marco Tarantola, Christoph Riethmüller
Tetraspanins are ubiquitous membrane proteins that induce local membrane curvature and hence co-ordinate cell-to-cell contacts. This review highlights their role in inflammation, which requires control of the nano-architecture of attachment sites between endothelial cells and leukocytes. The active role of endothelial cells in preparing for transmigration of leukocytes and determining the severity of an inflammation is often underscored. A clear hint to endothelial pre-activation is their ability to protrude clustered adhesion proteins upward prior to leukocyte contact...
July 14, 2017: Biochemical Society Transactions
https://www.readbyqxmd.com/read/28710003/amelioration-of-atherosclerotic-inflammation-and-plaques-via-endothelial-adrenoceptor-targeted-enos-gene-delivery-using-redox-sensitive-polymer-bearing-l-arginine
#20
Qurrat Ul Ain, Hyunji Chung, Jee Young Chung, Jae-Hoon Choi, Yong-Hee Kim
Endothelial dysfunction combined with inflammation leads to atherosclerosis. Endothelium-specific delivery of therapeutic agents at the cellular level-specifically in vivo-is still a difficult task for proper management of atherosclerosis. We designed a redox-sensitive poly(oligo-l-arginine) (rsPOLA) playing dual roles as an endothelium α-2 adrenoceptors(α-2ARs)-targeted gene carrier and as a substrate for endothelial nitric oxide synthase (eNOS). Overexpression of α-2ARs on atherosclerotic endothelial cells was confirmed and the eNOS/rsPOLA nanoplexes following systemic injection demonstrated to 1) enhance eNOS gene delivery into endothelial cells via α-2ARs/l-arginine specific binding, 2) increase intracellular level of nitric oxide, 3) suppress inflammatory response in endothelium and finally 4) reduce atherosclerotic plaque in a Ldlr(-/-) atherosclerotic mouse model...
July 11, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
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