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https://www.readbyqxmd.com/read/29334727/apob-apoa-i-ratio-is-independently-associated-with-carotid-atherosclerosis-in-type-2-diabetes-mellitus-with-well-controlled-ldl-cholesterol-levels
#1
Ji Eun Jun, Young Ju Choi, Yong-Ho Lee, Dae Jung Kim, Seok Won Park, Byung Wook Huh, Eun Jig Lee, Sun-Ha Jee, Kyu Yeon Hur, Sung Hee Choi, Kap Bum Huh
BACKGROUND/AIMS: This study aimed to investigate whether the apolipoprotein (Apo) B/ApoA-I ratio is associated with carotid intima-media thickness (CIMT) in type 2 diabetes mellitus (T2DM) subjects with low density lipoprotein cholesterol (LDL-C) levels less than 100 mg/dL. METHODS: This cross-sectional study included 845 subjects aged with T2DM 40 to 75 years who had visited Huh's Diabetes Center in Seoul, Republic of Korea for CIMT measurement. Traditional fasting lipid profiles, ApoB and ApoA-I levels were examined...
January 2018: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/29331380/eicosapentaenoic-acid-inhibits-oxidation-of-high-density-lipoprotein-particles-in-a-manner-distinct-from-docosahexaenoic-acid
#2
Samuel C R Sherratt, R Preston Mason
The omega-3 fatty acid eicosapentaenoic acid (EPA) reduces oxidation of ApoB-containing particles in vitro and in patients with hypertriglyceridemia. EPA may produce these effects through a potent antioxidant mechanism, which may facilitate LDL clearance and slow plaque progression. We hypothesize that EPA antioxidant effects may extend to ApoA-containing particles like HDL, potentially preserving certain atheroprotective functions. HDL was isolated from human plasma and incubated at 37 °C in the absence (vehicle) or presence of EPA and/or DHA; 5...
January 10, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29324459/discordance-between-lipoprotein-particle-number-and-cholesterol-content-an-update
#3
Eric P Cantey, John T Wilkins
PURPOSE OF REVIEW: The cholesterol content within atherogenic apolipoprotein-B (apoB) containing lipid particles is the center of consensus guidelines and clinicians' focus whenever evaluating a patient's risk for atherosclerotic cardiovascular disease. The pathobiology of atherosclerosis requires the retention of lipoprotein particles within the vascular intima over time followed by maladaptive inflammation resulting in plaque formation and rupture in some. The cholesterol content is widely variable within each particle creating either cholesterol-deplete or cholesterol-enriched particles...
January 10, 2018: Current Opinion in Endocrinology, Diabetes, and Obesity
https://www.readbyqxmd.com/read/29317346/protein-corona-and-phospholipase-activity-drive-selective-accumulation-of-nanomicelles-in-atherosclerotic-plaques
#4
Ana V Lechuga-Vieco, Hugo Groult, Juan Pellico, Jesús Mateo, Jose A Enríquez, Jesús Ruiz-Cabello, Fernando Herranz
ApoB-100 and Phosphatidylcholine-specific phospholipase C (PC-PLC) are important contributors to atherosclerosis development. ApoB-100 is the main structural protein of LDL, being directly associated with atherosclerosis plaque generation. PC-PLC is highly expressed in atherosclerosis lesions and contributes to their progression. We show how phosphatidylcholine-coated nanomicelles can be used for specific characterisation of atherosclerosis plaque. Results show that ApoB-100 in the protein corona of the nanomicelle targets the particles to atherosclerotic areas in apolipoprotein E-/- mice...
January 6, 2018: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/29316865/effects-of-thyroid-stimulating-hormone-on-peripheral-thyroid-hormone-metabolism-and-serum-lipids
#5
Carolien M Beukhof, Elske Theresia Massolt, Theo J Visser, Tim Korevaar, Marco Medici, Wouter W de Herder, Jeanine Roeters van Lennep, Monique Mulder, Yolanda B de Rijke, Christoph Reiners, Frederik A Verburg, Robin Peeters
BACKGROUND: Subclinical hypothyroidism is associated with dyslipidemia and atherosclerosis. Whether part of these effects are mediated via direct effects of TSH on peripheral TH metabolism and/or concentrations of serum lipids is not clear. OBJECTIVE: To examine whether thyroid stimulating hormone (TSH) has direct effects on peripheral thyroid hormone (TH) metabolism and serum lipids. METHODS: We retrospectively analyzed 82 patients with differentiated thyroid cancer...
January 9, 2018: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/29312456/association-of-sleep-duration-with-apolipoproteins-and-the-apolipoprotein-b-a1-ratio-the-china-health-and-nutrition-survey
#6
Huihui Ren, Zhelong Liu, Xinrong Zhou, Gang Yuan
Background: Short sleep duration has been related to established cardiovascular risk factors, likely obesity, diabetes, hypertension and dyslipidaemia. However, to the best of our knowledge, the associations between sleep duration and apolipoprotein concentrations and their ratios have not been investigated to date. This study aimed to explore the independent relationship of sleep duration with apolipoprotein (apo) A1, apoB and the apoB/apoA1 ratio in a Chinese adult population. Methods: Data from 7381 participants, aged 18 to 75 years, from the National Health and Nutrition Survey 2009 were analysed in this cross-sectional study...
2018: Nutrition & Metabolism
https://www.readbyqxmd.com/read/29311405/worsening-of-serum-lipid-profile-after-direct-acting-antiviral-treatment
#7
Stefano Gitto, Arrigo F G Cicero, Elisabetta Loggi, Marina Giovannini, Fabio Conti, Elena Grandini, Valeria Guarneri, Alessandra Scuteri, Giovanni Vitale, Carmela Cursaro, Claudio Borghi, Pietro Andreone
INTRODUCTION: Host lipid metabolism influences viral replication and lifecycle of hepatitis C virus. Our aim was to evaluate changes in glucose and lipid metabolism of patients with chronic hepatitis C after therapy with direct acting antivirals (DAA). MATERIAL AND METHODS: We considered patients consecutively treated between January and November 2015 recording clinical data at baseline and week 24 of follow-up. Frozen serum samples were used for apolipoprotein A1 (apoA1), apolipoprotein B (apoB) and lipoprotein (a) [Lp(a)]...
December 27, 2017: Annals of Hepatology
https://www.readbyqxmd.com/read/29310455/association-between-serum-ldl-c-and-apob-and-syntax-score-in-patients-with-stable-coronary-artery-disease
#8
Taiwu Lin, Luzhao Wang, Jingbin Guo, Peng Liu, Liheng Chen, Mengqiu Wei, Gongxin Li
The aim of this study was to examine the relationship between low-density lipoprotein cholesterol (LDL-C) and apolipoprotein (Apo) B levels and the SYNergy between percutaneous coronary intervention with TAXus and cardiac surgery (SYNTAX) score (SS) in patients with stable angina pectoris. We enrolled 594 patients who were suspected to have coronary heart disease (CHD) and who underwent coronary angiography. Patients were divided into 4 groups based on the SS: normal (SS = 0, n = 154), low SS (SS ≤ 22, n = 210), intermediate SS (22 < SS < 32, n = 122), and high SS (SS ≥ 33, n = 63)...
January 1, 2018: Angiology
https://www.readbyqxmd.com/read/29308443/relationship-between-adiponectin-and-apob-in-individuals-with-diabetes-in-the-atlantic-path-cohort
#9
Vanessa DeClercq, Yunsong Cui, Trevor J B Dummer, Cynthia Forbes, Scott A Grandy, Melanie Keats, Louise Parker, Ellen Sweeney, Zhijie Michael Yu, Roger S McLeod
Context: The increasing prevalence of obesity and diabetes greatly influences the risk for cardiovascular (CV) comorbidities and affects the quality of life of many people. However, the relationship among diabetes, obesity, and cardiovascular risk is complex and requires further investigation to understand the biological milieu connecting these conditions. Objective: The aim of the current study was to explore the relationship between biological markers of adipose tissue function (adiponectin) and CV risk (apolipoprotein B) in body mass index (BMI)-matched participants with and without diabetes...
December 1, 2017: Journal of the Endocrine Society
https://www.readbyqxmd.com/read/29302464/the-role-of-lp-pla2-and-biochemistry-parameters-as-potential-biomarkers-of-coronary-artery-disease-in-asian-south-indians-a-case-control-study
#10
Sai Giridhar Sairam, Srikanth Sola, Asha Barooah, Sai Kiran Javvaji, Jiten Jaipuria, Vijayalakshmi Venkateshan, Janardhana Chelli, Carani Balaraman Sanjeevi
Background: Coronary artery disease (CAD) is the leading cause of death and disability worldwide. Lipoprotein associated phospholipase A2 (Lp-PLA2) is an emerging biomarker for inflammation that has shown association with CAD. Its significance in the Asian Indian population is not clearly known. We sought to compare the possible association of various biomarkers of atherosclerosis along with Lp-PLA2, in symptomatic individuals with CAD vs. healthy controls in Asian South-Indians. Methods: We conducted a cross-sectional case control study at three centers in a South Indian population...
December 2017: Cardiovascular Diagnosis and Therapy
https://www.readbyqxmd.com/read/29301854/autophagy-is-required-for-sortilin-mediated-degradation-of-apolipoprotein-b100
#11
Jaume Amengual, Liang Guo, Alanna Strong, Julio Madrigal-Matute, Haizhen Wang, Susmita Kaushik, Jeffrey L Brodsky, Daniel J Rader, Ana Maria Cuervo, Edward A Fisher
Rationale: Genome-Wide Association Studies identified single nucleotide polymorphisms (SNPs) near the SORT1 locus strongly associated with decreased plasma low-density lipoprotein cholesterol (LDL-C) levels and protection from atherosclerotic cardiovascular disease and myocardial infarction. The minor allele of the causal SORT1 SNP locus creates a putative C/EBPα binding site in the SORT1 promoter, thereby increasing sortilin expression by 12-fold in liver, which is rich in this transcription factor. Our previous studies in mice have showed reductions in plasma LDL-C and its principal protein component, apolipoprotein B (apoB) with increased SORT1 expression, and in vitro studies suggested that sortilin promoted the presecretory lysosomal degradation of apoB associated with the LDL precursor, very-low density lipoprotein (VLDL)...
January 4, 2018: Circulation Research
https://www.readbyqxmd.com/read/29301387/pharmacogenetics-of-vascular-risk-factors-in-alzheimer-s-disease
#12
REVIEW
Ramón Cacabelos, Arun Meyyazhagan, Juan C Carril, Pablo Cacabelos, Óscar Teijido
Alzheimer's disease (AD) is a polygenic/complex disorder in which genomic, epigenomic, cerebrovascular, metabolic, and environmental factors converge to define a progressive neurodegenerative phenotype. Pharmacogenetics is a major determinant of therapeutic outcome in AD. Different categories of genes are potentially involved in the pharmacogenetic network responsible for drug efficacy and safety, including pathogenic, mechanistic, metabolic, transporter, and pleiotropic genes. However, most drugs exert pleiotropic effects that are promiscuously regulated for different gene products...
January 3, 2018: Journal of Personalized Medicine
https://www.readbyqxmd.com/read/29297961/serum-antibodies-against-oxidized-ldl-in-children-and-adolescents-with-and-without-hypercholesterolemia
#13
Anastasia Garoufi, Antonios Marmarinos, Venetia-Maria Vraila, Stamatina Dimou, Athanasia Pagoni, Styliani Vorre, Irene Paraskakis, Dimitrios Gourgiotis
BACKGROUND: The oxidative modification of LDL (oxLDL) appears to play a key role in the early developmental stages of atherosclerosis. Increased serum antibodies against the oxLDL (anti-oxLDL antibodies) have been found in adults with atherosclerotic diseases, as well as in healthy ones. However, the clinical significance and its precise role, atherogenic or atheroprotective, have not been yet clarified. This study aims in evaluating anti-oxLDL antibodies in healthy children and adolescents with- and without hypercholesterolemia...
January 3, 2018: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/29289533/ldl-receptor-gene-ablated-hamsters-a-rodent-model-of-familial-hypercholesterolemia-with-dominant-inheritance-and-diet-induced-coronary-atherosclerosis
#14
Xin Guo, Mingming Gao, Yunan Wang, Xiao Lin, Liu Yang, Nathan Cong, Xiangbo An, Feng Wang, Kai Qu, Liqing Yu, Yuhui Wang, Jinjie Wang, Haibo Zhu, Xunde Xian, George Liu
Familial hypercholesterolemia (FH) is an autosomal dominant genetic disease caused mainly by LDL receptor (Ldlr) gene mutations. Unlike FH patients, heterozygous Ldlr knockout (KO) mice do not show a dominant FH trait. Hamsters, like humans, have the cholesteryl ester transfer protein, intestine-only ApoB editing and low hepatic cholesterol synthesis. Here, we generated Ldlr-ablated hamsters using CRISPR/Cas9 technology. Homozygous Ldlr KO hamsters on a chow diet developed hypercholesterolemia with LDL as the dominant lipoprotein and spontaneous atherosclerosis...
December 15, 2017: EBioMedicine
https://www.readbyqxmd.com/read/29287689/present-therapeutic-role-of-cholesteryl-ester-transfer-protein-inhibitors
#15
REVIEW
Nicola Ferri, Alberto Corsini, Cesare R Sirtori, Massimiliano Ruscica
Therapeutic interventions aimed at increasing high-density lipoprotein (HDL) levels, in order to reduce the residual cardiovascular (CV) risk of optimally drug treated patients have not provided convincing results, so far. Transfer of cholesterol from extrahepatic tissues to the liver appears to be the major atheroprotective function of HDL, and an elevation of HDL levels could represent an effective strategy. Inhibition of the cholesteryl ester transfer protein (CETP), raising HDL-cholesterol (HDL-C) and apolipoprotein A-I (apoA-I) levels, reduces low-density lipoprotein-cholesterol (LDL-C) and apoB levels, thus offering a promising approach...
December 26, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/29272977/association-between-serum-levels-of-testosterone-and-biomarkers-of-subclinical-atherosclerosis
#16
Babak Rezanezhad, Rasmus Borgquist, Ronnie Willenheimer, Saad Elzanaty
OBJECTIVE: To investigate the association between serum levels of testosterone and biomarkers of subclinical atherosclerosis based on data from 119 middle-aged men of the general population. METHODS: Testosterone, Apolipoprotein A-1 (ApoA-1), Apolipoprotein B (ApoB), Apolipoprotein B-to-Apolipoprotein A-1 ratio (ApoB-to-ApoA-1), high-sensitive C-reactive protein (hsCRP), and fibrinogen levels were measured. Data were also gathered based on age, BMI, waist circumference, smoking, alcohol consumption, and family history of cardiovascular diseases...
December 22, 2017: Aging Male: the Official Journal of the International Society for the Study of the Aging Male
https://www.readbyqxmd.com/read/29261184/analysis-of-publicly-available-ldlr-apob-and-pcsk9-variants-associated-with-familial-hypercholesterolemia-application-of-acmg-guidelines-and-implications-for-familial-hypercholesterolemia-diagnosis
#17
Joana Rita Chora, Ana Margarida Medeiros, Ana Catarina Alves, Mafalda Bourbon
PurposeFamilial hypercholesterolemia (FH) is an autosomal disorder of lipid metabolism presenting with increased cardiovascular risk. Although more than 1,700 variants have been associated with FH, the great majority have not been functionally proved to affect the low-density lipoprotein receptor cycle. We aimed to classify all described variants associated with FH and to establish the proportion of variants that lack evidence to support their pathogenicity.MethodsWe followed American College of Medical Genetics and Genomics (ACMG) guidelines for the classification, and collected information from a variety of databases and individual reports...
October 26, 2017: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/29259801/treatment-with-liraglutide-may-improve-markers-of-cvd-reflected-by-reduced-levels-of-apob
#18
L Engelbrechtsen, J Lundgren, N J Wewer Albrechtsen, Y Mahendran, E W Iepsen, P Finocchietto, A E Jonsson, S Madsbad, J J Holst, H Vestergaard, T Hansen, S S Torekov
Background: Dislipidaemia and increased levels of apolipoprotein B (apoB) in individuals with obesity are risk factors for development of cardiovascular disease (CVD). The aim of this study was to investigate the effect of weight loss and weight maintenance with and without liraglutide treatment on plasma lipid profiles and apoB. Methods: Fifty-eight individuals with obesity (body mass index 34.5 ± 3.0 kg/m2 [mean ± SD]) were included in this study. After 8 weeks on a very low-calorie diet (800 kcal/day), participants were randomized to weight maintenance with meal replacements with or without liraglutide (1...
December 2017: Obesity Science & Practice
https://www.readbyqxmd.com/read/29259130/cathepsin-b-regulates-hepatic-lipid-metabolism-by-cleaving-liver-fatty-acid-binding-protein
#19
Simeon Thibeaux, Shaila Siddiqi, Olga Zhelyabovska, Faisal Moinuddin, Michal M Masternak, Shadab A Siddiqi
Synthesis and secretion of hepatic triglycerides (TAG) associated with very low-density lipoprotein (VLDL) play a major role in maintaining overall lipid homeostasis. This study aims to identify factors affecting synthesis and secretion of VLDL-TAG using the growth hormone-deficient Ames dwarf mouse model, which has reduced serum TAG. Proteomic analysis coupled with a bioinformatics driven approach revealed that these mice express greater amounts of hepatic cathepsin B and lower amounts of liver fatty acid binding protein (LFABP), than their wild type littermates...
December 19, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29246729/a-comparison-of-the-effects-of-low-and-high-dose-atorvastatin-on-lipoprotein-metabolism-and-inflammatory-cytokines-in-type-2-diabetes-results-from-the-protection-against-nephropathy-in-diabetes-with-atorvastatin-panda-randomized-trial
#20
Handrean Soran, Yifen Liu, Safwaan Adam, Tarza Siahmansur, Jan H Ho, Jonathan D Schofield, See Kwok, Matthew Gittins, Michael France, Naveed Younis, J Martin Gibson, Paul N Durrington, Martin K Rutter
BACKGROUND: Statin therapy is recommended in type 2 diabetes (T2DM) although views on treatment intensity and therapeutic targets remain divided. OBJECTIVES: Our objectives were to compare the effects of high-intensity and moderate-intensity atorvastatin treatment on lipoprotein metabolism and inflammatory markers and how frequently treatment goals are met in high-risk T2DM patients. METHODS: Patients with T2DM and albuminuria (urinary albumin:creatinine ratio >5 mg/mmol, total cholesterol <7 mmol/L, proteinuria <2 g/d, creatinine <200 μmol/L) were randomized to receive atorvastatin 10 mg (n = 59) or 80 mg (n = 60) daily...
November 13, 2017: Journal of Clinical Lipidology
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