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https://www.readbyqxmd.com/read/28432661/lipid-biomarkers-for-risk-assessment-in-acute-coronary-syndromes
#1
REVIEW
Jeffrey W Meeusen, Leslie J Donato, Allan S Jaffe
PURPOSE OF REVIEW: The objective of this review was to summarize evidence gathered for the prognostic value of routine and novel blood lipids and lipoproteins measured in patients with acute coronary syndromes (ACS). RECENT FINDINGS: Data supports clear association with risk and actionable value for non-high-density lipoprotein (Non-HDL) cholesterol and plasma ceramides in a setting of ACS. The prognostic value and clinical actionability of apolipoprotein B (apoB) and lipoprotein(a) [Lp(a)] in ACS have not been thoroughly tested, while the data for omega-3 fatty acids and oxidized low-density lipoprotein (Ox-LDL) are either untested or more varied...
June 2017: Current Cardiology Reports
https://www.readbyqxmd.com/read/28432377/emerging-roles-of-calpain-proteolytic-systems-in-macrophage-cholesterol-handling
#2
REVIEW
Takuro Miyazaki, Akira Miyazaki
Calpains are Ca(2+)-dependent intracellular proteases that play central roles in the post-translational processing of functional proteins. In mammals, calpain proteolytic systems comprise the endogenous inhibitor calpastatin as well as 15 homologues of the catalytic subunits and two homologues of the regulatory subunits. Recent pharmacological and gene targeting studies in experimental animal models have revealed the contribution of conventional calpains, which consist of the calpain-1 and -2 isozymes, to atherosclerotic diseases...
April 21, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28431006/regulation-of-oxidized-platelet-lipidome-implications-for-coronary-artery-disease
#3
Madhumita Chatterjee, Dominik Rath, Jörg Schlotterbeck, Johannes Rheinlaender, Britta Walker-Allgaier, Nada Alnaggar, Monika Zdanyte, Iris Müller, Oliver Borst, Tobias Geisler, Tilman E Schäffer, Michael Lämmerhofer, Meinrad Gawaz
Aims: Hyperlipidaemia enhances susceptibility to thrombosis, while platelet oxidixed LDL (oxLDL) binding in acute coronary syndrome (ACS) correlates with activation status. This study explores the platelet lipidome in symptomatic coronary artery disease (CAD) patients and the functional consequences of the chemokine CXCL12 and its receptors CXCR-4/-7 on lipid uptake in platelets. Methods and results: Platelet-oxLDL detected by flow cytometry was enhanced (P = 0...
April 18, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28429691/comparison-of-the-effects-of-high-dose-atorvastatin-and-high-dose-rosuvastatin-on-oxidative-stress-in-patients-with-acute-myocardial-infarction-a-pilot-study
#4
Celal Kilit, Fatma Emel Koçak, Türkan Paşalı Kilit
OBJECTIVE: Oxidative stress is increased in patients with acute myocardial infarction (AMI). Statins reduce oxidative stress independent of their effect in reducing low-density lipoprotein cholesterol (LDL-C). The aim of the present study was to compare the effects of atorvastatin and rosuvastatin on oxidative status by investigating serum paraoxonase, serum arylesterase, total oxidant status, total antioxidant status (TAS) and oxidative stress index (OSI) in patients with AMI. METHODS: Seventy patients with AMI were randomized into 2 groups; total of 55 patients (19 females, 36 males) aged 32 to 86 years completed the study and were included in the analysis...
April 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28429343/post-prandial-effects-of-hazelnut-enriched-high-fat-meal-on-ldl-oxidative-status-oxidative-and-inflammatory-gene-expression-of-healthy-subjects-a-randomized-trial
#5
L Di Renzo, G Merra, R Botta, P Gualtieri, A Manzo, M A Perrone, M Mazza, S Cascapera, A De Lorenzo
OBJECTIVE: Postprandial oxidative stress is characterized by an increased susceptibility of the organism towards oxidative damage after consumption of a meal rich in lipids and/or carbohydrates. Micronutrients modulate the immune system and exert a protective action by reducing low-density lipoproteins oxidation (ox-LDL) via induction of antioxidant enzymes. SUBJECTS AND METHODS: The clinical study was a randomized and cross-over trial, conducted through the CONSORT flowchart...
April 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28428482/triglyceride-rich-lipoprotein-lpl-vldl-receptor-and-lp-a-vldl-receptor-pathways-for-macrophage-foam-cell-formation
#6
Sadao Takahashi
Very low-density lipoprotein (VLDL) receptor is a member of the low-density lipoprotein (LDL) receptor family. It binds triglyceride rich lipoprotein (TGRL) but not LDL, because it recognizes apolipoprotein (apo)E only but not apoB. The VLDL receptor functions as a peripheral lipoprotein receptor in concert with lipoprotein lipase (LPL) in heart, muscle, adipose tissue and macrophages. In contrast to the LDL receptor, VLDL receptor binds apo E2/2 VLDL and apoE3/3 VLDL particles, and its expression is not down-regulated by intracellular lipoproteins...
April 19, 2017: Journal of Atherosclerosis and Thrombosis
https://www.readbyqxmd.com/read/28425583/sleep-apnea-syndrome-inflammation-and-oxidative-stress-in-hemodialysis-patients
#7
Olga Nikitidou, Euphemia Daskalopoulou, Aikaterini Papagianni, Vassilios Liakopoulos, Aikaterini Michalaki, Foteini Christidou, Paraskevi Argyropoulou, Dimitrios Kirmizis, Georgios Efstratiadis, Pavlos Nikolaidis, Michail Daniilidis, Nicholas Dombros
INTRODUCTION: Sleep apnea syndrome (SAS) is an established cardiovascular risk factor in the general population related to inflammation and oxidative stress and is very common among hemodialysis patients. Cardiovascular disease and its complications is the main cause of death among hemodialysis patients. The aim of the present study was to investigate the role of SAS in the promotion of inflammation and oxidative stress and thus in the augmentation of cardiovascular risk in hemodialysis patients...
April 20, 2017: Hemodialysis International
https://www.readbyqxmd.com/read/28424622/pravastatin-chronic-treatment-sensitizes-hypercholesterolemic-mice-muscle-to-mitochondrial-permeability-transition-protection-by-creatine-or-coenzyme-q10
#8
Estela N B Busanello, Ana C Marques, Noelia Lander, Diogo N de Oliveira, Rodrigo R Catharino, Helena C F Oliveira, Anibal E Vercesi
Statins are efficient cholesterol-lowering medicines utilized worldwide. However, 10% of patients suffer from adverse effects specially related to skeletal muscle function. Pro- or anti-oxidant effects of statins have been reported. Here we hypothesized that statins induce muscle mitochondrial oxidative stress leading to mitochondrial permeability transition (MPT) which may explain statin muscle toxicity. Thus, our aims were to investigate the effects of statin chronic treatment on muscle mitochondrial respiration rates, MPT and redox state indicators in the context of hypercholesterolemia...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28422277/oxidized-ldl-gamma-glutamyltransferase-and-adverse-outcomes-in-older-adults
#9
Belinda Spoto, Francesco Mattace-Raso, Eric J Sijbrands, Graziella D'Arrigo, Giovanni Tripepi, Stefano Volpato, Stefania Bandinelli, Luigi Ferrucci, Carmine Zoccali
OBJECTIVES: Gamma-glutamyltransferase (GGT) is a biomarker of liver disease and oxidative stress which was associated with all-cause and cardiovascular (CV) mortality in the general population and in patients with high risk conditions. This study aims at assessing whether oxLDL modifies the relationship between GGT, all-cause, and CV mortality in elderly individuals from the general population. DESIGN: Observational longitudinal study. SETTING: Population-based cohort of older individuals (>65 years) free of liver disease...
April 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28419828/hypoglycemic-and-hypolipidemic-effects-of-a-polysaccharide-from-flower-buds-of-lonicera-japonica-in-streptozotocin-induced-diabetic-rats
#10
Dongying Wang, Xiangmei Zhao, Yulan Liu
Hyperglycemia and dyslipidemia are classic features for diabetes mellitus (DM). In this study, one fraction of the crude polysaccharides extracted from Lonicera japonica flower buds (LJP) were investigated for its hypolipidaemic and hypoglycaemic activities by means of streptozotocin (STZ)-inducd diabetic rats. Interestingly, after orally administrated with 800mg/kg body weight (B.W.) LJP for 42 days, the food and water intake and the levels of sugar and insulin in blood for the diatebic rats were drastically decreased, while the contents of liver and skeletal muscle glycogen and the concentrations of hepatic pyruvate kinase and hexokinase were obviously increased (p<0...
April 15, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28417309/effects-of-nano-zinc-on-biochemical-parameters-in-cadmium-exposed-rats
#11
Marzie Hejazy, Mohammad Kazem Koohi
Cadmium (Cd) is a toxic environmental and occupational pollutant with reported toxic effects on the kidneys, liver, lungs, bones, and the immunity system. Based on its physicochemical similarity to cadmium, zinc (Zn) shows protective effects against cadmium toxicity and cadmium accumulation in the body. Nano-zinc and nano-zinc oxide (ZnO), recently used in foods and pharmaceutical products, can release a great amount of Zn(2+) in their environment. This research was carried out to investigate the more potent properties of the metal zinc among sub-acute cadmium intoxicated rats...
April 17, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28417112/lectin-type-oxidized-ldl-receptor-1-distinguishes-population-of-human-polymorphonuclear-myeloid-derived-suppressor-cells-in-cancer-patients
#12
Thomas Condamine, George A Dominguez, Je-In Youn, Andrew V Kossenkov, Sridevi Mony, Kevin Alicea-Torres, Evgenii Tcyganov, Ayumi Hashimoto, Yulia Nefedova, Cindy Lin, Simona Partlova, Alfred Garfall, Dan T Vogl, Xiaowei Xu, Stella C Knight, George Malietzis, Gui Han Lee, Evgeniy Eruslanov, Steven M Albelda, Xianwei Wang, Jawahar L Mehta, Meenakshi Bewtra, Anil Rustgi, Neil Hockstein, Robert Witt, Gregory Masters, Brian Nam, Denis Smirnov, Manuel A Sepulveda, Dmitry I Gabrilovich
Polymorphonuclear myeloid-derived suppressor cells (PMN-MDSC) are important regulators of immune responses in cancer and have been directly implicated in promotion of tumor progression. However, the heterogeneity of these cells and lack of distinct markers hampers the progress in understanding of the biology and clinical importance of these cells. Using partial enrichment of PMN-MDSC with gradient centrifugation we determined that low density PMN-MDSC and high density neutrophils from the same cancer patients had a distinct gene profile...
August 2016: Science Immunology
https://www.readbyqxmd.com/read/28413519/amp-activated-protein-kinase-mediates-the-effects-of-lipoprotein-associated-phospholipase-a2-on-endothelial-dysfunction-in-atherosclerosis
#13
Li Yang, Hong-Liang Cong, Shu-Feng Wang, Ting Liu
The present study aimed to investigate the effects of lipoprotein-associated phospholipase A2 (Lp-PLA2) on endothelial dysfunction in an in vitro cell model of atherosclerosis, and to determine whether AMP-activated protein kinase (AMPK) mediates the effects of Lp-PLA2 on endothelial dysfunction. A total of 392 patients with coronary artery disease (CAD), including various sub-conditions, were recruited, and the plasma concentrations of Lp-PLA2 were evaluated. In addition, an in vitro model of atherosclerosis was established by exposing human umbilical vein endothelial cells (HUVECs) to oxidized low-density lipoprotein (oxLDL)...
April 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28412863/oxidized-lipoprotein-lipids-and-atherosclerosis
#14
Markku Ahotupa
Plasma lipoproteins contain variable amounts of lipid oxidation products (LOP), which are known to impair normal physiological functions and stimulate atherosclerotic processes. Recent evidence indicate that plasma lipoproteins are active carriers of LOP, LDL directing transport towards peripheral tissues, and HDL being active in the reverse transport. It has been proposed that the lipoprotein -specific transport of LOP could play a role in atherosclerosis -related effects of LDL and HDL. This article gives an overview of the present knowledge of lipoprotein LOP transport and its association with the risk of atherosclerosis and cardiovascular diseases (CVD)...
April 17, 2017: Free Radical Research
https://www.readbyqxmd.com/read/28412716/tanshinone-iia-suppresses-the-progression-of-atherosclerosis-by-inhibiting-the-apoptosis-of-vascular-smooth-muscle-cells-and-the-proliferation-and-migration-of-macrophages-induced-by-ox-ldl
#15
Baocai Wang, Zhenwei Ge, Zhaoyun Cheng, Ziniu Zhao
The profound inhibitory effect of Tanshinone IIA (Tan IIA) on atherosclerosis has been demonstrated, whereas the latent mechanism is not completely cleared. This study aimed to investigate the cellular and molecular mechanisms underlying Tan IIA protecting against atherosclerosis. Oil Red O staining and ELISA assay showed that Tan IIA suppressed the progress of atherosclerosis and reduced the levels of inflammatory cytokines in serum of apolipoprotein E deficient (ApoE (-/-) ) mice. Flow cytometry assay revealed that Tan IIA inhibited oxidized LDL (ox-LDL)-induced apoptosis of VSMCs...
April 15, 2017: Biology Open
https://www.readbyqxmd.com/read/28411243/potent-vasoconstrictor-kisspeptin-10-induces-atherosclerotic-plaque-progression-and-instability-reversal-by-its-receptor-gpr54-antagonist
#16
Kengo Sato, Remina Shirai, Mina Hontani, Rina Shinooka, Akinori Hasegawa, Tomoki Kichise, Tomoyuki Yamashita, Hayami Yoshizawa, Rena Watanabe, Taka-Aki Matsuyama, Hatsue Ishibashi-Ueda, Shinji Koba, Youichi Kobayashi, Tsutomu Hirano, Takuya Watanabe
BACKGROUND: Kisspeptin-10 (KP-10), a potent vasoconstrictor and inhibitor of angiogenesis, and its receptor, GPR54, have currently received much attention in relation to pre-eclampsia. However, it still remains unknown whether KP-10 could affect atherogenesis. METHODS AND RESULTS: We evaluated the effects of KP-10 on human umbilical vein endothelial cells, human monocyte-derived macrophages, human aortic smooth muscle cells in vitro, and atherosclerotic lesions in apolipoprotein E-deficient (ApoE(-/-)) mice in vivo...
April 14, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28410922/antioxidant-response-to-artichoke-leaf-extract-supplementation-in-metabolic-syndrome-a-double-blind-placebo-controlled-randomized-clinical-trial
#17
Khatereh Rezazadeh, Soodabeh Aliashrafi, Mohammad Asghari-Jafarabadi, Mehrangiz Ebrahimi-Mameghani
BACKGROUND: Oxidative stress is associated with most components and complications of Metabolic Syndrome (MetS). Artichoke Leaf Extract (ALE) has demonstrated anti-oxidant properties in both laboratory and animal studies. AIM: This study was designed to examine the effects of ALE on oxidative stress indices in patients with MetS. METHODS: In the current double-blind placebo-controlled randomized clinical trial, 80 patients with MetS were randomly allocated to either "ALE group" (received 1800 mg ALE as four tablets per day) or "Placebo group" (received placebo containing cornstarch, lactose and avicel as four tablets per day) for 12 weeks...
March 23, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28410194/chicoric-acid-is-a-potent-anti-atherosclerotic-ingredient-by-anti-oxidant-action-and-anti-inflammation-capacity
#18
Kun-Ling Tsai, Chung-Lan Kao, Ching-Hsia Hung, Yung-Hsin Cheng, Huei-Chen Lin, Pei-Ming Chu
Atherosclerotic cardiovascular disease is linked to both oxidative stress and endothelial cell dysfunction. Chicoric acid has antioxidant and anti-inflammatory properties. In the present investigation, we demonstrated that chicoric acid inhibits oxidized low-density lipoprotein (oxLDL)-facilitated dysfunction in human umbilical vein endothelial cells (HUVECs). Oxidative injuries were tested by investigating the formation of intracellular reactive oxygen species (ROS) and by examining the activity of antioxidant enzymes and the function of endothelial nitric oxide synthase (eNOS)...
March 31, 2017: Oncotarget
https://www.readbyqxmd.com/read/28409654/olr1-and-loxin-expression-in-pbmcs-of-women-with-a-history-of-unexplained-recurrent-miscarriage-a-pilot-study
#19
Valentina Bruno, Barbara Rizzacasa, Adalgisa Pietropolli, Maria Vittoria Capogna, Renato Massoud, Carlo Ticconi, Emilio Piccione, Claudio Cortese, Giuseppe Novelli, Francesca Amati
AIMS: The aim of this study was to evaluate the expression of OLR1 and its alternative splicing isoform Loxin in unexplained recurrent miscarriage (uRM). METHODS: Sixty-three women of reproductive age were recruited and were divided into four groups: 18 pregnant and 23 non-pregnant women with uRM, and 12 pregnant and 10 non-pregnant women with physiological pregnancies. Complementary DNA derived from peripheral blood mononuclear cells (PBMCs) was analyzed by quantitative real-time PCR to evaluate the expression of OLR1 and Loxin...
April 14, 2017: Genetic Testing and Molecular Biomarkers
https://www.readbyqxmd.com/read/28407763/klotho-ameliorates-oxidized-low-density-lipoprotein-ox-ldl-induced-oxidative-stress-via-regulating-lox-1-and-pi3k-akt-enos-pathways
#20
Yansheng Yao, Yanbing Wang, Yibo Zhang, Chang Liu
BACKGROUND: Atherosclerosis is a common cardiovascular disease that causes myocardial infarction, heart failure, and stroke. Increased oxidized low density lipoprotein (ox-LDL) in the sub-endothelium is the characteristic origin of atherogenesis. Klotho, an anti-aging protein, has been reported to protect against atherosclerosis and ameliorate endothelial dysfunction in vivo. The aim of this study is to investigatethe anti-oxidative activity of Klothoin ox-LDL-treated human umbilical vein endothelial cells (HUVECs)...
April 13, 2017: Lipids in Health and Disease
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