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https://www.readbyqxmd.com/read/28209220/very-low-density-lipoprotein-associated-apolipoproteins-predict-cardiovascular-events-and-are-lowered-by-inhibition%C3%A2-of%C3%A2-apoc-iii
#1
Raimund Pechlaner, Sotirios Tsimikas, Xiaoke Yin, Peter Willeit, Ferheen Baig, Peter Santer, Friedrich Oberhollenzer, Georg Egger, Joseph L Witztum, Veronica J Alexander, Johann Willeit, Stefan Kiechl, Manuel Mayr
BACKGROUND: Routine apolipoprotein (apo) measurements for cardiovascular disease (CVD) are restricted to apoA-I and apoB. Here, the authors measured an unprecedented range of apolipoproteins in a prospective, population-based study and relate their plasma levels to risk of CVD. OBJECTIVES: This study sought to measure apolipoproteins directly by mass spectrometry and compare their associations with incident CVD and to obtain a system-level understanding of the correlations of apolipoproteins with the plasma lipidome and proteome...
February 21, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28207527/zhibitai-and-low-dose-atorvastatin-reduce-blood-lipids-and-inflammation-in-patients-with-coronary-artery-disease
#2
Yuhong Zhao, Ran Peng, Wang Zhao, Qiong Liu, Yuan Guo, Shuiping Zhao, Danyan Xu
BACKGROUND: Atorvastatin decreases blood lipids but is associated with side effects. Zhibitai is a traditional Chinese medicine used to treat blood lipid disorders. The objective of this study is to evaluate the lipid-lowering effect, antiinflammatory effect, and adverse events of zhibitai combined to atorvastatin in patients with coronary heart diseases (CHDs). METHODS: Patients with CHD (n = 150) were randomized to: zhibitai 480 mg + atorvastatin 10 mg (ZA10 group), atorvastatin 20 mg (A20 group), and atorvastatin 40 mg (A40 group)...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28193317/identification-of-differentially-expressed-placental-transcripts-during-multiple-gestations-in-the-eurasian-beaver-castor-fiber-l
#3
A Lipka, L Paukszto, M Majewska, J P Jastrzebski, K Myszczynski, G Panasiewicz, B Szafranska
The Eurasian beaver is one of the largest rodents that, despite its high impact on the environment, is a non-model species that lacks a reference genome. Characterising genes critical for pregnancy outcome can serve as a basis for identifying mechanisms underlying effective reproduction, which is required for the success of endangered species conservation programs. In the present study, high-throughput RNA sequencing (RNA-seq) was used to analyse global changes in the Castor fiber subplacenta transcriptome during multiple pregnancy...
February 14, 2017: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/28188021/-vascular-lesions-in-patient-with-takayasu-arteritis-and-massive-elevated-lipoprotein-a-levels-residual-involvement-or-premature-aterosclerosis
#4
José Carlos Alarcón García, Santiago Rodríguez Suárez, Ovidio Muñiz Grijalvo, Salvador García Morillo
Lipoprotein (a) [Lp(a)] is a lipoprotein defined by presenting a specific apolipoprotein, ApoA, linked to the ApoB-100 by different types of chemical bonds, including a disulfide bridge. Despite their atherogenic mechanism is not fully understood, its importance has been demonstrated in the development of premature aterosclerosis. Multiple studies have shown its role as a cardiovascular risk factor associated with heart disease and stroke. We report the case of a patient with a diagnosis of Takayasu arteritis in which a massive elevation of Lp(a) was detected...
February 7, 2017: Clínica e Investigación en Arteriosclerosis
https://www.readbyqxmd.com/read/28183448/c-reactive-protein-levels-are-inversely-correlated-with-the-apolipoprotein-b-48-containing-triglyceride-rich-lipoprotein-production-rate-in-insulin-resistant-men
#5
Jean-Philippe Drouin-Chartier, André J Tremblay, Jean-Charles Hogue, Myriam Leclerc, Marie-Ève Labonté, Johanne Marin, Benoît Lamarche, Patrick Couture
: The pro-inflammatory state and elevated plasma levels of post-prandial triglycerides (TG) are associated with increased cardiovascular disease risk. Recent studies suggested that the increase in the production rate of post-prandial lipoproteins observed in patients with insulin resistance (IR) may be caused, at least in part, by the dysregulation of intestinal insulin sensitivity triggered by inflammation. OBJECTIVE: The objective of the present study was to evaluate the association between IR, plasma C-reactive protein (CRP) levels and the kinetics of TG-rich lipoprotein (TRL) containing apolipoprotein (apo) B-48 in a large sample of insulin sensitive (IS) and IR men...
March 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28179493/nutritional-and-lipid-modulation-of-pcsk9-effects-on-cardiometabolic-risk-factors
#6
REVIEW
Jacqueline A Krysa, Teik Chye Ooi, Spencer D Proctor, Donna F Vine
Proprotein convertase subtilisin/kexin type 9 (PCSK9) is a serine protease involved in the regulation of LDL receptor (LDLR) expression and apolipoprotein B lipoprotein cholesterol metabolism. Hepatic PCSK9 protein expression, activity, and secretion have been shown to affect cholesterol homeostasis. An upregulation of hepatic PSCK9 protein leads to increased LDLR degradation, resulting in decreased uptake of apoB lipoproteins and a consequent increase in the plasma concentration of these lipoproteins, including LDL and chylomicron remnants...
February 8, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28169949/molecular-basis-of-familial-hypercholesterolemia
#7
Caroline S Bruikman, Gerard K Hovingh, John J P Kastelein
PURPOSE OF REVIEW: To provide an overview about the molecular basis of familial hypercholesterolemia. RECENT FINDINGS: Familial hypercholesterolemia is a common hereditary cause of premature coronary heart disease. It has been estimated that 1 in every 250 individuals has heterozygous familial hypercholesterolemia and that fewer than 1% of patients with familial hypercholesterolemia have been identified across the globe. If heterozygous familial hypercholesterolemia is left untreated, it is likely that coronary heart disease will manifest clinically prior to the age of 55 years and that half of all patients will prematurely die from the consequences of myocardial infarction...
February 4, 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/28168401/dyslipidemia-in-systemic-lupus-erythematosus
#8
Melinda Zsuzsanna Szabó, Peter Szodoray, Emese Kiss
Cardiovascular disease is one of the major causes of morbidity and mortality in patients with systemic lupus erythematosus (SLE). Accelerated atherosclerosis is related to traditional (age, hypertension, diabetes mellitus, dyslipidemia, obesity, smoking, and positive family history) and non-traditional, disease-related factors. Traditional risk factors are still more prominent in patients with lupus, as both hypertension and hypercholesterinemia were independently associated with premature atherosclerosis in several SLE cohorts...
February 7, 2017: Immunologic Research
https://www.readbyqxmd.com/read/28167355/development-of-a-new-bioactivatable-fluorescent-probe-for-quantification-of-apolipoprotein-a-i-proteolytic-degradation-in%C3%A2-vitro-and-in%C3%A2-vivo
#9
Foued Maafi, Baoqiang Li, Catherine Gebhard, Mathieu R Brodeur, Walid Nachar, Louis Villeneuve, Frédéric Lesage, David Rhainds, Eric Rhéaume, Jean-Claude Tardif
BACKGROUND AND AIMS: The potential benefits of high-density lipoproteins (HDL) against atherosclerosis are attributed to its major protein component, apolipoprotein A-I (apoA-I). Most of the apoA-I in the vascular wall appears to be in its lipid-poor form. The latter, however, is subjected to degradation by proteases localized in atherosclerotic plaques, which, in turn, has been shown to negatively impact its atheroprotective functions. Here, we report the development and in vivo use of a bioactivatable near-infrared full-length apoA-I-Cy5...
January 21, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28167353/genetic-risk-analysis-of-coronary-artery-disease-in-pakistani-subjects-using-a-genetic-risk-score-of-21-variants
#10
Saleem Ullah Shahid, Shabana, Jackie A Cooper, Katherine E Beaney, Kawah Li, Abdul Rehman, Steve E Humphries
BACKGROUND AND AIMS: Conventional coronary artery disease (CAD) risk factors like age, gender, blood lipids, hypertension and smoking have been the basis of CAD risk prediction algorithms, but provide only modest discrimination. Genetic risk score (GRS) may provide improved discrimination over and above conventional risk factors. Here we analyzed the genetic risk of CAD in subjects from Pakistan, using a GRS of 21 variants in 18 genes and examined whether the GRS is associated with blood lipid levels...
January 22, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28161274/valproate-acid-vpa-induced-dysmetabolic-function-in-clinical-and-animal-studies
#11
Rong Li, Lisheng Liang, Xinmou Wu, Xianli Ma, Min Su
BACKGROUND: Valproate acid (VPA), a commonly used antiepileptic medicine, is found to be linked to developing dysmetabolic risk. However, the proposed mechanism remains completely unknown. METHODS: In this study, we collected data from patients with epilepsy and further investigated the preclinical study in mice. RESULTS: As results, the clinical data showed that VPA-used patients resulted in higher levels of blood glucose, urine acid, triglyceride (TG), and immune cells (leucocyte, neutrophil leucocyte) when compared to clinically diagnosed references, while circulating apolipoprotein A1 (Apob A1) and fatty acid binding protein 4 (FABP4) were reduced without visible drug-induced liver injury (DILI)...
February 2, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28161202/analysis-of-children-and-adolescents-with-familial-hypercholesterolemia
#12
Ilenia Minicocci, Simone Pozzessere, Cristina Prisco, Anna Montali, Alessia di Costanzo, Eliana Martino, Francesco Martino, Marcello Arca
OBJECTIVE: To evaluate the effectiveness of criteria based on child-parent assessment in predicting familial hypercholesterolemia (FH)-causative mutations in unselected children with hypercholesterolemia. STUDY DESIGN: LDLR, APOB, and PCSK9 genes were sequenced in 78 children and adolescents (mean age 8.4 ± 3.7 years) with clinically diagnosed FH. The presence of polygenic hypercholesterolemia was further evaluated by genotyping 6 low-density lipoprotein cholesterol (LDL-C)-raising single-nucleotide polymorphisms...
February 1, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28146135/the-transcription-profile-unveils-the-cardioprotective-effect-of-aspalathin-against-lipid-toxicity-in-an-in-vitro-h9c2-model
#13
Rabia Johnson, Phiwayinkosi V Dludla, Christo J F Muller, Barbara Huisamen, M Faadiel Essop, Johan Louw
Aspalathin, a C-glucosyl dihydrochalcone, has previously been shown to protect cardiomyocytes against hyperglycemia-induced shifts in substrate preference and subsequent apoptosis. However, the precise gene regulatory network remains to be elucidated. To unravel the mechanism and provide insight into this supposition, the direct effect of aspalathin in an isolated cell-based system, without the influence of any variables, was tested using an H9c2 cardiomyocyte model. Cardiomyocytes were exposed to high glucose (33 mM) for 48 h before post-treatment with or without aspalathin...
January 31, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28144944/erythrocyte-bound-apolipoprotein-b-in-atherosclerosis-and-mortality
#14
Marijke A de Vries, Selvetta S van Santen, Boudewijn Klop, Noëlle van der Meulen, Marjolein van Vliet, Gert-Jan M van de Geijn, Ellen M van der Zwan-van Beek, Erwin Birnie, Anho H Liem, Wouter W de Herder, Manuel Castro Cabezas
BACKGROUND: The binding of apolipoprotein (apo) B-containing lipoproteins to circulating erythrocytes (ery-apoB) is associated with a decreased prevalence of atherosclerosis. In this study, we evaluated ery-apoB as a possible prognostic factor in cardiovascular events and all-cause mortality, in a prospective cohort study. MATERIALS AND METHODS: Ery-apoB was measured by flow cytometry in subjects with and without cardiovascular disease (CVD). The primary endpoint was the cardiovascular event rate...
February 1, 2017: European Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28132397/treatment-of-dyslipidemias-to-prevent-cardiovascular-disease-in-patients-with-type-2-diabetes
#15
REVIEW
Maryam Khavandi, Francisco Duarte, Henry N Ginsberg, Gissette Reyes-Soffer
PURPOSE OF REVIEW: Current preventive and treatment guidelines for type 2 diabetes have failed to decrease the incidence of comorbidities, such as dyslipidemia and ultimately heart disease. The goal of this review is to describe the physiological and metabolic lipid alterations that develop in patients with type 2 diabetes mellitus. Questions addressed include the differences in lipid and lipoprotein metabolism that characterize the dyslipidemia of insulin resistance and type 2 diabetes mellitus...
January 2017: Current Cardiology Reports
https://www.readbyqxmd.com/read/28131846/novel-human-bioactive-peptides-identified-in-apolipoprotein-b-evaluation-of-their-therapeutic-potential
#16
Rosa Gaglione, Eliana Dell'Olmo, Andrea Bosso, Marco Chino, Katia Pane, Flora Ascione, Francesco Itri, Sergio Caserta, Angela Amoresano, Angelina Lombardi, Henk P Haagsman, Renata Piccoli, Elio Pizzo, Edwin J A Veldhuizen, Eugenio Notomista, Angela Arciello
Host defence peptides (HDPs) are short, cationic amphipathic peptides that play a key role in the response to infection and inflammation in all complex life forms. It is increasingly emerging that HDPs generally have a modest direct activity against a broad range of microorganisms, and that their anti-infective properties are mainly due to their ability to modulate the immune response. Here, we report the recombinant production and characterization of two novel HDPs identified in human Apolipoprotein B (residues 887-922) by using a bioinformatics method recently developed by our group...
January 25, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28128295/rna-helicase-ddx3-maintains-lipid-homeostasis-through-upregulation-of-the-microsomal-triglyceride-transfer-protein-by-interacting-with-hnf4-and-shp
#17
Tsung-Yuan Tsai, Wei-Ting Wang, Hao-Kang Li, Wei-Ju Chen, Yu-Hong Tsai, Chi-Hong Chao, Yan-Hwa Wu Lee
Multifunctional RNA helicase DDX3 participates in HCV infection, one of the major causes of hepatic steatosis. Here, we investigated the role of DDX3 in hepatic lipid metabolism. We found that HCV infection severely reduced DDX3 expression. Analysis of intracellular triglyceride and secreted ApoB indicated that lipid accumulations were increased while ApoB secretion were decreased in DDX3 knockdown HuH7 and HepG2 cell lines. Down-regulation of DDX3 significantly decreased protein and transcript expression of microsomal triglyceride transfer protein (MTP), a key regulator of liver lipid homeostasis...
January 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28126827/involvement-of-cetp-cholesteryl-ester-transfer-protein-in-the-shift-of-sphingosine-1-phosphate-among-lipoproteins-and-in-the-modulation-of-its-functions
#18
Makoto Kurano, Masumi Hara, Hitoshi Ikeda, Kazuhisa Tsukamoto, Yutaka Yatomi
OBJECTIVE: Sphingosine-1-phosphate (S1P) is a vasoprotective lipid mediator. About two thirds of plasma S1P rides on high-density lipoprotein (HDL), and several pleiotropic properties of HDL have been ascribed to S1P. In human subjects, CETP (cholesteryl ester transfer protein) greatly influences HDL quantities. In this study, we attempted to elucidate the roles of CETP in the metabolism of S1P. APPROACH AND RESULTS: We overexpressed CETP in mice that lacked CETP and found that CETP overexpression decreased the HDL level but failed to modulate the levels of S1P and apolipoprotein M (apoM), a carrier of S1P, in the total plasma...
January 26, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28125987/method-for-estimating-high-sdldl-c-by-measuring-triglyceride-and-apolipoprotein-b-levels
#19
Toshiyuki Hayashi, Shinji Koba, Yasuki Ito, Tsutomu Hirano
BACKGROUND: We previously developed an assay to directly measure small dense (sd) low-density lipoprotein cholesterol (LDL-C) levels, which is not widely used in general clinical practice. Therefore, we propose a simpler method, "LDL window," that uses conventional methods for estimating high sdLDL-C levels. METHODS: We analyzed our previous studies (2006-2008) on healthy subjects and patients with type 2 diabetes and coronary artery disease (CAD). The sdLDL-C level was measured using the precipitation method, and LDL size was determined using gradient gel electrophoresis...
January 26, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28121706/greater-remnant-lipoprotein-cholesterol-reduction-with-pitavastatin-compared-to-pravastatin-in-hiv-infected-patients-the-intrepid-trial
#20
Parag H Joshi, P Elliott Miller, Seth S Martin, Steven R Jones, Joseph M Massaro, Ralph B D'Agostino, Krishnaji R Kulkarni, Craig Sponseller, Peter P Toth
OBJECTIVE: Cardiovascular disease (CVD) is a leading cause of morbidity and mortality in those with HIV. An emerging CVD risk factor is triglyceride-rich remnant lipoprotein cholesterol (RLP-C: the sum of intermediate-density lipoprotein and very low-density lipoprotein3 cholesterol). The effects of statin therapy on lipoprotein subfractions, including RLP-C, in HIV-dyslipidemia are unknown. METHODS: This is a post-hoc analysis of the randomized INTREPID trial (NCT 01301066) comparing pitavastatin 4 mg daily vs...
January 24, 2017: AIDS
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