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Apolipoprotein B

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https://www.readbyqxmd.com/read/29783206/-experimental-evaluation-of-the-therapeutic-potential-of-liposome-mediated-apoe3-gene-transfection-for-cerebral-atherosclerosis
#1
Vadym V Biloshytskyi, Alisa V Pachevska, Alina V Biloshytska, Valerii M Istoshyn, Maryna V Biloshytska, Olha B Shevnia
OBJECTIVE: Introduction: In recent years, a stroke has been the cause of high lethality, long-term and sustained disability, the problem of which is still far from being resolved. The root cause of stroke is atherosclerosis. The aim: Study of neurotrophic and neuroprotective functions of apoE in rat brain tissue in experimental atherosclerosis. PATIENTS AND METHODS: Materials and methods: The study included 60 sexually mature rats. The model of experimental atherosclerosis was created by Anichkov method...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29781767/activities-of-purine-converting-enzymes-in-heart-liver-and-kidney-mice-ldlr-and-apo-e
#2
I M Rybakowska, B Kutryb-Zając, R Milczarek, B Łukasz, E M Slominska, R T Smolenski
Nucleotide metabolism plays a major role in a number of vital cellular processes such as energetics. This, in turn, is important in pathologies such as atherosclerosis. Three month old atherosclerotic mice with knock outs for LDLR and apolipoprotein E (ApoE) were used for the experiments. Activities of AMP-deaminase (AMPD), ecto5'-nucleotidase (e5NT), adenosine deaminase (ADA), purine nucleoside phosphorylase (PNP) were measured in heart, liver and kidney cortex and medulla by analysing conversion of substrates into products using HPLC...
May 21, 2018: Nucleosides, Nucleotides & Nucleic Acids
https://www.readbyqxmd.com/read/29778561/severe-xanthomatosis-in-heterozygous-familial-hypercholesterolemia
#3
Sumayah Aljenedil, Isabelle Ruel, Kevin Watters, Jacques Genest
BACKGROUND: Familial hypercholesterolemia is a genetic lipoprotein disorder characterized by elevated plasma low-density lipoprotein cholesterol level, (tendinous xanthomas, xanthelasmas, and premature arcus corneus) and early onset atherosclerotic cardiovascular disease. Familial hypercholesterolemia is caused by mutations in the low-density lipoprotein receptor, apolipoprotein B or proprotein convertase subtilisin/kexin type 9 genes. Rare mutations in low-density lipoprotein receptor adapter protein 1, APOE p...
April 3, 2018: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/29776362/apolipoprotein-b-apolipoprotein-a1-ratio-and-mortality-among-incident-peritoneal-dialysis-patients
#4
Xiaojiang Zhan, Yanbing Chen, Caixia Yan, Siyi Liu, Lijuan Deng, Yuting Yang, Panlin Qiu, Dan Pan, Bingxiang Zeng, Qinkai Chen
BACKGROUND: To investigate the association between the ratio of apolipoprotein B (apo B) / apolipoprotein A1 (apo A1) with all-cause mortality and cardiovascular events in peritoneal dialysis (PD) patients. METHODS: Eight hundred and sixty incident PD patients were enrolled from November 1, 2005, to February 28, 2017, and followed until May 31, 2017. Outcomes were all-cause mortality and cardiovascular events. Associations between the apo B/apo A1 ratio with all-cause mortality and cardiovascular events were evaluated using multivariable-adjusted Cox models...
May 17, 2018: Lipids in Health and Disease
https://www.readbyqxmd.com/read/29773828/single-nucleotide-polymorphisms-in-the-g-protein-coupled-receptor-kinase-5-grk5-gene-are-associated-with-plasma-ldl-cholesterol-levels-in-humans
#5
Stefan Z Lutz, Mathias Falcenberg, Fausto Machicao, Andreas Peter, Martin Kächele, Elko Randrianarisoa, Angela Lehn-Stefan, Robert Wagner, Jürgen Machann, Fritz Schick, Martin Heni, Axel Ullrich, Andreas Fritsche, Norbert Stefan, Hans-Ulrich Häring, Harald Staiger, Konstantinos Kantartzis
Genetically modified mice models suggest an important role for G-protein-coupled receptor kinase 5 (GRK5) in the pathophysiology of obesity and related disorders. We investigated whether single nucleotide polymorphisms (SNPs) in the gene encoding GRK5 affect cardiometabolic traits in humans. We genotyped 3 common SNPs in intron 1 (rs1980030, rs10466210, rs9325562) and one SNP in intron 3 (rs10886471) of GRK5 in 2332 subjects at risk for type 2 diabetes. Total- and visceral fat mass were measured by magnetic resonance (MR) tomography and liver fat content by 1 H-MR spectroscopy...
May 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29772479/adverse-lipid-profile-elevates-risk-for-subarachnoid-hemorrhage-a-prospective-population-based-cohort-study
#6
Joni Lindbohm, Miikka Korja, Pekka Jousilahti, Veikko Salomaa, Jaakko Kaprio
BACKGROUND AND AIMS: Studies report that both high and low total cholesterol (TC) elevates SAH risk. There are few prospective studies on high-density lipoproteins (HDL-C) and low-density lipoproteins (LDL-C), and apparently none concerns apolipoproteins A and B. We aimed to clarify the association between lipid profile and SAH risk. METHODS: The National FINRISK study provided risk-factor data recorded at enrolment between 1972 and 2007. During 1.52 million person-years of follow-up until 2014, 543 individuals suffered from incident hospitalized SAH or outside-hospital-fatal SAH...
May 5, 2018: Atherosclerosis
https://www.readbyqxmd.com/read/29769532/aid-apobec-like-cytidine-deaminases-are-ancient-innate-immune-mediators-in-invertebrates
#7
Mei-Chen Liu, Wen-Yun Liao, Katherine M Buckley, Shu Yuan Yang, Jonathan P Rast, Sebastian D Fugmann
In the course of both innate and adaptive immunity, cytidine deaminases within the activation induced cytidine deaminase (AID)/apolipoprotein B editing complex (APOBEC) family modulate immune responses by mutating specific nucleic acid sequences of hosts and pathogens. The evolutionary emergence of these mediators, however, seems to coincide precisely with the emergence of adaptive immunity in vertebrates. Here, we show a family of genes in species within two divergent invertebrate phyla-the echinoderm Strongylocentrotus purpuratus and the brachiopod Lingula anatina-that encode proteins with similarities in amino acid sequence and enzymatic activities to the vertebrate AID/APOBECs...
May 16, 2018: Nature Communications
https://www.readbyqxmd.com/read/29769483/association-between-serum-apolipoprotein-b-and-acute-ischaemic-stroke
#8
M S Islam, M J Uddin, M Bhattacharjee, M N Farzana, R K Talukder, M A Rahman, M Mohsin, M A Rouf, H Pandit, M R Karim, R Ara, S Akhter, G Saha, M Oliullah, M S Ali, R Parveen
Stroke is one of the leading causes of death and disability in developed as well as developing countries like Bangladesh. There is a crucial need to identify additional risk factors that are easily measurable and treatable in general population. Role of serum lipids, lipoproteins and lipoprotein related variables in the prediction of stroke is less clear. Abnormalities in plasma lipoproteins are the most firmly established and best understood risk factors for atherosclerosis and they are probable risk factors for ischaemic stroke, largely by their link to atherosclerosis...
April 2018: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/29769419/heart-rate-reduction-with-ivabradine-in-the-early-phase-of-atherosclerosis-is-protective-in-the-endothelium-of-apoe-deficient-mice
#9
G Aquila, M B Morelli, F Vieceli Dalla Sega, F Fortini, P Nigro, C Caliceti, M Ferracin, M Negrini, A Pannuti, M Bonora, P Pinton, R Ferrari, P Rizzo
Ivabradine, a heart rate reducing agent, protects the vascular system by unidentified mechanisms. We sought to determine the effects of the treatment with ivabradine, started before plaque formation, on early transcriptional changes and endothelium lesions in regions of aorta subjected to disturbed blood flow. Six week-old apolipoprotein E-deficient (ApoE-/- ) mice, fed a low-fat diet, were treated with ivabradine to determine the effect on transcriptional changes (2-and 4-week treatment) and on lesions formation (19-week treatment) in the endothelium of the aortic arch...
February 2018: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29764903/vitamin-d-supplementation-does-not-improve-cvd-risk-factors-in-vitamin-d-insufficient-subjects
#10
Julia Magdalena Kubiak, Per Medbøe Thorsby, Elena Kamycheva, Rolf Jorde
OBJECTIVE: Low serum 25(OH)D levels are associated with cardiovascular disease (CVD) and some of its risk factors. However, in interventional studies the effects of vitamin D supplementation have been uncertain, possibly due to inclusion of vitamin D sufficient subjects. Our aim was therefore to examine effects of vitamin D supplementation on CVD risk factors in vitamin D insufficient subjects. DESIGN: Double-blinded randomized controlled trial. METHODS: A four months interventional study with high dose vitamin D (100 000 IU loading dose, followed by 20 000 IU/week) or placebo with measurements of blood pressure, lipids (total-, LDL- and HDL-cholesterol, triglycerides, apolipoproteins A1 and B), and glucose metabolism parameters (blood glucose, HbA1c, sRAGE, insulin, C-peptide, and HOMA-IR)...
May 15, 2018: Endocrine Connections
https://www.readbyqxmd.com/read/29764762/analysis-of-plasma-albumin-vitamin-d-and-apolipoproteins-a-and-b-as-predictive-coronary-risk-biomarkers-in-the-regicor-study
#11
Gabriel Vázquez-Oliva, Alberto Zamora, Rafel Ramos, Isaac Subirana, María Grau, Irene R Dégano, Daniel Muñoz, Montserrat Fitó, Roberto Elosua, Jaume Marrugat
INTRODUCTION AND OBJECTIVES: New biomarkers could improve the predictive capacity of classic risk functions. The aims of this study were to determine the association between circulating levels of apolipoprotein A1 (apoA1), apolipoprotein B (apoB), albumin, and 25-OH-vitamin D and coronary events and to analyze whether these biomarkers improve the predictive capacity of the Framingham-REGICOR risk function. METHODS: A case-cohort study was designed. From an initial cohort of 5404 individuals aged 35 to 74 years with a 5-year follow-up, all the participants who had a coronary event (n = 117) and a random group of the cohort (subcohort; n = 667) were selected...
May 12, 2018: Revista Española de Cardiología
https://www.readbyqxmd.com/read/29761474/lipids-apolipoproteins-and-inflammatory-biomarkers-of-cv-risk-what-have-we-learned
#12
David Rhainds, Mathieu R Brodeur, Jean-Claude Tardif
Cardiovascular diseases (CVD) are the first cause of death in the world. CVD risk is influenced by multiple factors, some non-modifiable such as age, sex and genetic background, and others modifiable. Great progress has been made over the last decades in the identification of biomarkers of incident or recurrent CV risk and surrogate endpoints of CV outcomes. We present the current state of knowledge for CV biomarkers in plasma including lipids, apolipoproteins, inflammation-related, and emerging omics-based biomarkers...
May 15, 2018: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/29760220/quantifying-atherogenic-lipoproteins-current-and-future-challenges-in-the-era-of-personalized-medicine-and-vldl-cholesterol-a-consensus-statement-from-eas-and-eflm
#13
Michel R Langlois, M John Chapman, Christa Cobbaert, Samia Mora, Alan T Remaley, Emilio Ros, Gerald F Watts, Jan Borén, Hannsjörg Baum, Eric Bruckert, Alberico Catapano, Olivier S Descamps, Arnold von Eckardstein, Pia R Kamstrup, Genovefa Kolovou, Florian Kronenberg, Anne Langsted, Kari Pulkki, Nader Rifai, Grazyna Sypniewska, Olov Wiklund, B Rge G Nordestgaard
BACKGROUND: The European Atherosclerosis Society-European Federation of Clinical Chemistry and Laboratory Medicine Consensus Panel aims to provide recommendations to optimize atherogenic lipoprotein quantification for cardiovascular risk management. CONTENT: We critically examined LDL cholesterol, non-HDL cholesterol, apolipoprotein B (apoB), and LDL particle number assays based on key criteria for medical application of biomarkers. ( a ) Analytical performance: Discordant LDL cholesterol quantification occurs when LDL cholesterol is measured or calculated with different assays, especially in patients with hypertriglyceridemia >175 mg/dL (2 mmol/L) and low LDL cholesterol concentrations <70 mg/dL (1...
May 14, 2018: Clinical Chemistry
https://www.readbyqxmd.com/read/29753732/niacin-action-in-the-atherogenic-mixed-dyslipidemia-of-metabolic-syndrome-insights-from-metabolic-biomarker-profiling-and-network-analysis
#14
Martin Adiels, M John Chapman, Paul Robillard, Michel Krempf, Martine Laville, Jan Borén
BACKGROUND: Niacin as an adjunct to statin treatment to reduce cardiovascular risk is questioned. OBJECTIVE: To evaluate interrelationships between the effects of niacin on mixed dyslipidemia and a spectrum of metabolic and inflammatory biomarkers. METHODS: Obese, nondiabetic, hypertriglyceridemic males (n = 19) with low high-density lipoprotein-cholesterol levels received extended-release nicotinic acid for 8 weeks. Multiple biomarkers were measured using enzyme-linked immunosorbent assay, enzymatic/absorptiometric, or multiplex biochip assays...
March 29, 2018: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/29745686/does-incipient-dementia-explain-normal-cognitive-decline-determinants-lothian-birth-cohort-1921
#15
Ruth A Sibbett, Tom C Russ, Alison Pattie, John M Starr, Ian J Deary
The presence of an apolipoprotein E (APOE) ε4 allele, lower physical fitness, smoking, and lower serum vitamin B-12 have been reported as contributing to poorer cognitive function in LBC1921 at age 79, after adjusting for childhood intelligence. Because incident dementia was not previously ascertained within LBC1921, it is possible that preclinical or unrecognized cases at age 79 influenced findings. Dementia cases arising over approximately 16 years of follow-up were determined by a consensus using evidence from electronic medical records, death certificates, and clinical reviews...
May 10, 2018: Psychology and Aging
https://www.readbyqxmd.com/read/29740584/associations-between-dietary-antioxidant-intake-and-markers-of-atherosclerosis-in-middle-aged-women-from-north-western-algeria
#16
Mustapha Diaf, Meghit Boumediene Khaled
Background: The role of several dietary antioxidants in preventing the development and the progression of atherosclerosis has recently aroused considerable interest. Although they are not yet conclusive, most of the existing suggestions support this hypothesis. Objective: The aim of the present work was to investigate the intake of dietary antioxidant nutrients in relation to atherogenic indices in a group of Algerian middle aged women with and without type 2 diabetes. Methods: A cross-sectional study was conducted on a group of middle-aged women from the north western region of Algeria...
2018: Frontiers in Nutrition
https://www.readbyqxmd.com/read/29739406/dna-methylation-in-the-apoe-genomic-region-is-associated-with-cognitive-function-in-african-americans
#17
Jiaxuan Liu, Wei Zhao, Erin B Ware, Stephen T Turner, Thomas H Mosley, Jennifer A Smith
BACKGROUND: Genetic variations in apolipoprotein E (APOE) and proximal genes (PVRL2, TOMM40, and APOC1) are associated with cognitive function and dementia, particularly Alzheimer's disease. Epigenetic mechanisms such as DNA methylation play a central role in the regulation of gene expression. Recent studies have found evidence that DNA methylation may contribute to the pathogenesis of dementia, but its association with cognitive function in populations without dementia remains unclear...
May 8, 2018: BMC Medical Genomics
https://www.readbyqxmd.com/read/29731826/expression-and-influence-of-pentraxin-3-hbalc-and-apoa1-apob-in-serum-of-patients-with-acute-myocardial-infarction-combined-with-diabetes-mellitus-type-2
#18
Yanxia Zhu, Xiaofang Wang, Weihua Wang, Hongguang Wang, Fenglei Zhang
The present study investigated the clinical significance of changes in levels of hypersensitive plasma pentraxin-3 (PTX3), hemoglobin A1c (HbAlc) and apolipoprotein A-I (ApoA1)/apolipoprotein B (ApoB) on patients with acute myocardial infarction (AMI) and diabetes mellitus type 2 (T2DM). After admission, 100 patients diagnosed with AMI combined with T2DM were selected as Group A. According to the level of fasting blood glucose (FBG), they were then subdivided into Group A1 (n=44) with FBG ≥13.0 mmol/l and Group A2 (n=56) with FBG <13...
May 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29730995/16-year-survival-of-the-canadian-collaborative-cohort-of-related-dementias
#19
Maya L Lichtenstein, Nader Fallah, Benita Mudge, Ging-Yuek R Hsiung, Dean Foti, B Lynn Beattie, Howard H Feldman
Background Survival estimates are integral to care for patients diagnosed with dementia. Few Canadian studies have carried out long-term follow-up of well-described cohorts, analyzing survival related to multiple risk factors. Methods Survival analysis of an inception cohort enrolled at a British Columbia (BC) tertiary dementia referral clinic between 1997 and 1999 was undertaken. Vital status was completed for 168 patients diagnosed with dementia. An evaluation of the effects of demographics, vascular risk factors, cognitive and functional ratings, apolipoprotein 4-status, and cholinesterase use on survival was performed using a log-rank test and time-dependent Cox regression...
May 7, 2018: Canadian Journal of Neurological Sciences. le Journal Canadien des Sciences Neurologiques
https://www.readbyqxmd.com/read/29730953/low-density-lipoprotein-associated-variables-and-the-severity-of-coronary-artery-disease-an-untreated-chinese-cohort-study
#20
Xi Zhao, Di Sun, Rui-Xia Xu, Yuan-Lin Guo, Cheng-Gang Zhu, Na-Qiong Wu, Yan Zhang, Sha Li, Ying Gao, Geng Liu, Qian Dong, Jian-Jun Li
BACKGROUND AND AIMS: Elevated low-density lipoprotein cholesterol (LDL-C) is causal risk for coronary artery disease (CAD) and LDL-associated variables including LDL-C, apolipoprotein B (apoB), non-high-density lipoprotein cholesterol (non-HDL-C), lipoprotein a [Lp(a)], small dense LDL (sd-LDL) and oxidized LDL (ox-LDL) have been widely used for predicting the risk of CAD. The present study was aimed to compare the values of six LDL-related variables for predicting the severity of CAD using untreated patients undergoing coronary angiography (CAG)...
May 7, 2018: Biomarkers: Biochemical Indicators of Exposure, Response, and Susceptibility to Chemicals
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