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https://www.readbyqxmd.com/read/27905925/expression-of-insulin-receptor-ir-a-and-b-isoforms-igf-ir-and-ir-igf-ir-hybrid-receptors-in-vascular-smooth-muscle-cells-and-their-role-in-cell-migration-in-atherosclerosis
#1
N Beneit, C E Fernández-García, J L Martín-Ventura, L Perdomo, Ó Escribano, J B Michel, G García-Gómez, S Fernández, S Díaz-Castroverde, J Egido, A Gómez-Hernández, M Benito
BACKGROUND: Abnormal proliferation and migration of vascular smooth muscle cells (VSMCs) is a major contributor to the development of atherosclerotic process. In a previous work, we demonstrated that the insulin receptor isoform A (IRA) and its association with the insulin-like growth factor-I receptor (IGF-IR) confer a proliferative advantage to VSMCs. However, the role of IR and IGF-IR in VSMC migration remains poorly understood. METHODS: Wound healing assays were performed in VSMCs bearing IR (IRLoxP(+/+) VSMCs), or not (IR(-/-) VSMCs), expressing IRA (IRA VSMCs) or expressing IRB (IRB VSMCs)...
December 1, 2016: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/27899424/genetic-architecture-of-sporadic-frontotemporal-dementia-and-overlap-with-alzheimer-s-and-parkinson-s-diseases
#2
Raffaele Ferrari, Yunpeng Wang, Jana Vandrovcova, Sebastian Guelfi, Aree Witeolar, Celeste M Karch, Andrew J Schork, Chun C Fan, James B Brewer, Parastoo Momeni, Gerard S Schellenberg, William P Dillon, Leo P Sugrue, Christopher P Hess, Jennifer S Yokoyama, Luke W Bonham, Gil D Rabinovici, Bruce L Miller, Ole A Andreassen, Anders M Dale, John Hardy, Rahul S Desikan
BACKGROUND: Clinical, pathological and genetic overlap between sporadic frontotemporal dementia (FTD), Alzheimer's disease (AD) and Parkinson's disease (PD) has been suggested; however, the relationship between these disorders is still not well understood. Here we evaluated genetic overlap between FTD, AD and PD to assess shared pathobiology and identify novel genetic variants associated with increased risk for FTD. METHODS: Summary statistics were obtained from the International FTD Genomics Consortium, International PD Genetics Consortium and International Genomics of AD Project (n>75 000 cases and controls)...
November 29, 2016: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/27891330/evaluation-of-lipid-profile-and-apolipoproteins-in-essential-hypertensive-patients
#3
Parsuram Nayak, Suchismita Panda, Pravat Kumar Thatoi, Roma Rattan, Srikrushna Mohapatra, Pramila Kumari Mishra
INTRODUCTION: Essential hypertension is one of the most common diseases of the Indian population contributing greatly to the morbidity, mortality and economic burden. It has a strong association with cardiovascular disease and abnormal lipid metabolism. Not only the traditional lipid parameters, but also the novel lipid components like Apo A1 and Apo B100 also have been identified to play a role. AIM: The present study was done to evaluate serum lipid profile and Apo A1, Apo B 100 in essential hypertensive patients and correlate their values with the degree of hypertension...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27883006/dyslipidaemia-apo-ai-infusion-after-acute-mi
#4
Gregory B Lim
No abstract text is available yet for this article.
November 24, 2016: Nature Reviews. Cardiology
https://www.readbyqxmd.com/read/27882049/different-effects-of-myoinositol-plus-folic-acid-versus-combined-oral-treatment-on-androgen-levels-in-pcos-women
#5
Ali Cenk Ozay, Ozlen Emekci Ozay, Recep Emre Okyay, Erkan Cagliyan, Tuncay Kume, Bulent Gulekli
Recently, myoinositol (myo-ins) and folic acid combination has gained an important role for treating Polycystic Ovary Syndrome (PCOS), in addition to combined oral contraceptives (COC). We aimed to examine myo-ins effects on anti-Mullerian hormone (AMH) levels and compare them with those ones obtained administering COC. In this prospective study, 137 PCOS patients, diagnosed according to Rotterdam criteria and admitted to the Reproductive Endocrinology and Infertility Outpatient Clinic at Dokuz Eylul University (Izmir, Turkey), were included...
2016: International Journal of Endocrinology
https://www.readbyqxmd.com/read/27875551/crystal-structures-of-group-b-streptococcus-glyceraldehyde-3-phosphate-dehydrogenase-apo-form-binary-and-ternary-complexes
#6
Norbert Schormann, Chapelle A Ayres, Alexandra Fry, Todd J Green, Surajit Banerjee, Glen C Ulett, Debasish Chattopadhyay
Glyceraldehyde 3-phosphate dehydrogenase or GAPDH is an evolutionarily conserved glycolytic enzyme. It catalyzes the two step oxidative phosphorylation of D-glyceraldehyde 3-phosphate into 1,3-bisphosphoglycerate using inorganic phosphate and NAD+ as cofactor. GAPDH of Group B Streptococcus is a major virulence factor and a potential vaccine candidate. Moreover, since GAPDH activity is essential for bacterial growth it may serve as a possible drug target. Crystal structures of Group B Streptococcus GAPDH in the apo-form, two different binary complexes and the ternary complex are described here...
2016: PloS One
https://www.readbyqxmd.com/read/27875503/influence-of-partial-external-biliary-diversion-on-the-lipid-profile-in-children-with-progressive-familial-intrahepatic-cholestasis
#7
Irena Jankowska, Piotr Czubkowski, Aldona Wierzbicka, Joanna Pawłowska, Piotr Kaliciński, Piotr Socha
OBJECTIVES: The concentration of bile acids is highly increased in progressive familial intrahepatic cholestasis (PFIC). Bile acids are the end products of cholesterol metabolism, and aid in the absorption of fat-soluble vitamins and dietary fat. The aim of our study was to investigate lipid metabolism in patients with PFIC with focus on the effect of partial external biliary diversion (PEBD). METHODS: In 26 patients with PFIC, who underwent PEBD surgery at the median age of 2...
December 2016: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/27872105/multiethnic-exome-wide-association-study-of-subclinical-atherosclerosis
#8
Pradeep Natarajan, Joshua C Bis, Lawrence F Bielak, Amanda J Cox, Marcus Dörr, Mary F Feitosa, Nora Franceschini, Xiuqing Guo, Shih-Jen Hwang, Aaron Isaacs, Min A Jhun, Maryam Kavousi, Ruifang Li-Gao, Leo-Pekka Lyytikäinen, Riccardo E Marioni, Ulf Schminke, Nathan O Stitziel, Hayato Tada, Jessica van Setten, Albert V Smith, Dina Vojinovic, Lisa R Yanek, Jie Yao, Laura M Yerges-Armstrong, Najaf Amin, Usman Baber, Ingrid B Borecki, J Jeffrey Carr, Yii-Der Ida Chen, L Adrienne Cupples, Pim A de Jong, Harry de Koning, Bob D de Vos, Ayse Demirkan, Valentin Fuster, Oscar H Franco, Mark O Goodarzi, Tamara B Harris, Susan R Heckbert, Gerardo Heiss, Udo Hoffmann, Albert Hofman, Ivana Išgum, J Wouter Jukema, Mika Kähönen, Sharon L R Kardia, Brian G Kral, Lenore J Launer, Joseph Massaro, Roxana Mehran, Braxton D Mitchell, Thomas H Mosley, Renée de Mutsert, Anne B Newman, Khanh-Dung Nguyen, Kari E North, Jeffrey R O'Connell, Matthijs Oudkerk, James S Pankow, Gina M Peloso, Wendy Post, Michael A Province, Laura M Raffield, Olli T Raitakari, Dermot F Reilly, Fernando Rivadeneira, Frits Rosendaal, Samantha Sartori, Kent D Taylor, Alexander Teumer, Stella Trompet, Stephen T Turner, André G Uitterlinden, Dhananjay Vaidya, Aad van der Lugt, Uwe Völker, Joanna M Wardlaw, Christina L Wassel, Stefan Weiss, Mary K Wojczynski, Diane M Becker, Lewis C Becker, Eric Boerwinkle, Donald W Bowden, Ian J Deary, Abbas Dehghan, Stephan B Felix, Vilmundur Gudnason, Terho Lehtimäki, Rasika Mathias, Dennis O Mook-Kanamori, Bruce M Psaty, Daniel J Rader, Jerome I Rotter, James G Wilson, Cornelia M van Duijn, Henry Völzke, Sekar Kathiresan, Patricia A Peyser, Christopher J O'Donnell
BACKGROUND: -The burden of subclinical atherosclerosis in asymptomatic individuals is heritable and associated with elevated risk of developing clinical coronary heart disease (CHD). We sought to identify genetic variants in protein-coding regions associated with subclinical atherosclerosis and the risk of subsequent CHD. METHODS AND RESULTS: -We studied a total of 25,109 European ancestry and African-American participants with coronary artery calcification (CAC) measured by cardiac computed tomography and 52,869 with common carotid intima media thickness (CIMT) measured by ultrasonography within the Cohorts for Heart and Aging Research in Genomic Epidemiology (CHARGE) Consortium...
November 21, 2016: Circulation. Cardiovascular Genetics
https://www.readbyqxmd.com/read/27862954/automation-of-prm-dependent-d3-leu-tracer-enrichment-in-hdl-to-study-the-metabolism-of-apoa-i-lcat-and-other-apolipoproteins
#9
Lang Ho Lee, Allison B Andraski, Brett Pieper, Hideyuki Higashi, Frank M Sacks, Masanori Aikawa, Sasha A Singh
We developed an automated quantification workflow for PRM-enabled detection of D3-Leu labeled apoA-I in HDL isolated from humans. Subjects received a bolus injection of D3-Leu and blood was drawn at seven time points over three days. HDL was isolated and separated into six size fractions for subsequent proteolysis and PRM analysis for the detection of D3-Leu signal from ∼0.03 to 0.6 % enrichment. We implemented an intensity-based quantification approach that takes advantage of high resolution/accurate mass PRM scans to identify the D3-Leu 2HM3 ion from non-specific peaks...
November 9, 2016: Proteomics
https://www.readbyqxmd.com/read/27861563/binge-drinking-in-young-university-students-is-associated-with-alterations-in-executive-functions-related-to-their-starting-age
#10
Diana Salas-Gomez, Mario Fernandez-Gorgojo, Ana Pozueta, Isabel Diaz-Ceballos, Maider Lamarain, Carmen Perez, Pascual Sanchez-Juan
Our aim was to evaluate whether or not alcohol consumption in the form of binge drinking is associated with alterations of memory and executive functions in a population of university students. At the same time, we have studied the role of potential modulating factors, such as the APOE genotype or physical exercise.University students enrolled in academic year 2013-2014 at Escuelas Universitarias Gimbernat-Cantabria, affiliated with the University of Cantabria, were invited to participate in the study. We gathered sociodemographic data and details regarding the lifestyle of 206 students (mean age 19...
2016: PloS One
https://www.readbyqxmd.com/read/27861532/crystal-structure-and-pyridoxal-5-phosphate-binding-property-of-lysine-decarboxylase-from-selenomonas-ruminantium
#11
Hye-Young Sagong, Hyeoncheol Francis Son, Sunghwan Kim, Yong-Hwan Kim, Il-Kwon Kim, Kyung-Jin Kim
Lysine decarboxylase (LDC) is a crucial enzyme for acid stress resistance and is also utilized for the biosynthesis of cadaverine, a promising building block for bio-based polyamides. We determined the crystal structure of LDC from Selenomonas ruminantium (SrLDC). SrLDC functions as a dimer and each monomer consists of two distinct domains; a PLP-binding barrel domain and a sheet domain. We also determined the structure of SrLDC in complex with PLP and cadaverine and elucidated the binding mode of cofactor and substrate...
2016: PloS One
https://www.readbyqxmd.com/read/27858593/structure-and-dynamics-underlying-elementary-ligand-binding-events-in-human-pacemaking-channels
#12
Marcel P Goldschen-Ohm, Vadim A Klenchin, David S White, John B Cowgill, Qiang Cui, Randall H Goldsmith, Baron Chanda
Although molecular recognition is crucial for cellular signaling, mechanistic studies have relied primarily on ensemble measures that average over and thereby obscure underlying steps. Single-molecule observations that resolve these steps are lacking due to diffraction-limited resolution of single fluorophores at relevant concentrations. Here, we combined zero-mode waveguides with fluorescence resonance energy transfer (FRET) to directly observe binding at individual cyclic nucleotide-binding domains (CNBDs) from human pacemaker ion channels critical for heart and brain function...
November 18, 2016: ELife
https://www.readbyqxmd.com/read/27856454/endothelial-cell-specific-deletion-of-p2y2-receptor-promotes-plaque-stability-in-atherosclerosis-susceptible-apoe-null-mice
#13
Chen Xingjuan, Shaomin Qian, April Hoggatt, Hongying Tang, Timothy A Hacker, Alexander G Obukhov, Paul B Herring, Cheikh I Seye
OBJECTIVE: Nucleotide P2Y2 receptor (P2Y2R) contributes to vascular inflammation by increasing vascular cell adhesion molecule-1 expression in endothelial cells (EC), and global P2Y2R deficiency prevents fatty streak formation in apolipoprotein E null (ApoE(-/-)) mice. Because P2Y2R is ubiquitously expressed in vascular cells, we investigated the contribution of endothelial P2Y2R in the pathogenesis of atherosclerosis. APPROACH AND RESULTS: EC-specific P2Y2R-deficient mice were generated by breeding VEcadherin5-Cre mice with the P2Y2R floxed mice...
November 17, 2016: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/27853278/integrative-mutation-haplotype-and-g%C3%A2-%C3%A3-%C3%A2-g-interaction-evidence-connects-abgl4-lrp8-and-pcsk9-genes-to-cardiometabolic-risk
#14
Tao Guo, Rui-Xing Yin, Li-Mei Yao, Feng Huang, Ling Pan, Wei-Xiong Lin, De-Zhai Yang, Shang-Ling Pan
This study is expected to investigate the association of ATP/GTP binding protein-like 4 (AGBL4), LDL receptor related protein 8 (LRP8) and proprotein convertase subtilisin/kexin type 9 (PCSK9) gene single nucleotide variants (SNVs) with lipid metabolism in 2,552 individuals (Jing, 1,272 and Han, 1,280). We identified 12 mutations in this motif. The genotype and allele frequencies of these variants were different between the two populations. Multiple-locus linkage disequilibrium (LD) elucidated the detected sites are not statistically independent...
November 17, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27852620/cyclic-di-gmp-binding-induces-structural-rearrangements-in-the-plza-and-plzc-proteins-of-the-lyme-disease-and-relapsing-fever-spirochetes-a-possible-switch-mechanism-for-c-di-gmp-mediated-effector-functions
#15
Katherine L Mallory, Daniel P Miller, Lee D Oliver, John C Freedman, Jessica L Kostick-Dunn, Jason A Carlyon, James D Marion, Jessica K Bell, Richard T Marconi
The c-di-GMP network of Borrelia burgdorferi, a causative agent of Lyme disease, consists of Rrp1, a diguanylate cyclase/response regulator; Hpk1, a histidine kinase; PdeA and PdeB, c-di-GMP phosphodiesterases; and PlzA, a PilZ domain c-di-GMP receptor. Borrelia hermsii, a causative agent of tick-borne relapsing fever, possesses a putative c-di-GMP regulatory network that is uncharacterized. While B. burgdorferi requires c-di-GMP to survive within ticks, the associated effector mechanisms are poorly defined...
November 2016: Pathogens and Disease
https://www.readbyqxmd.com/read/27849638/role-of-apoe-%C3%AE%C2%B54-allele-and-incident-stroke-on-cognitive-decline-and-mortality
#16
Kumar B Rajan, Neelum T Aggarwal, Julie A Schneider, Robert S Wilson, Susan A Everson-Rose, Denis A Evans
BACKGROUND: The apolipoprotein E (APOE) ε4 allele and stroke increase the risk of cognitive decline. However, the association of the APOE ε4 allele before and after stroke is not well understood. METHODS: Using a prospective sample of 3444 (66% African Americans, 61% females, mean age=71.9 y) participants, we examined cognitive decline relative to stroke among those with and without the APOE ε4 allele. RESULTS: In our sample, 505 (15%) had incident stroke...
October 2016: Alzheimer Disease and Associated Disorders
https://www.readbyqxmd.com/read/27849191/fasting-glycemia-and-glycated-hemoglobin-categories-relationship-to-serum-lipoprotein-a-level-and-disparity-in-2-geographic-regional-groups-of-turkey
#17
Altan Onat, Yusuf Karadeniz, Günay Can, Süleyman Karakoyun, Fatma Özpamuk-Karadeniz, Ayşem Kaya, Hüsniye Yüksel
OBJECTIVE: The goal of the present study was to determine covariates of serum lipoprotein (Lp) (a) within fasting glucose and glycated hemoglobin (HbA1c) categories, and to detect features that were different among covariates based on residence in Marmara and Central Anatolia (Marm-CA) regions or remaining 5 geographic regions of Turkey. METHODS: Data of randomly-selected group of 1167 men and women (mean age 61 years) who participated in biennial surveys of 2013 and 2015 were cross-sectionally analyzed in 6 categories...
November 10, 2016: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/27834776/genetic-risk-as-a-marker-of-amyloid-%C3%AE-and-tau-burden-in-cerebrospinal-fluid
#18
Nicola Voyle, Hamel Patel, Amos Folarin, Stephen Newhouse, Caroline Johnston, Pieter Jelle Visser, Richard J B Dobson, Steven J Kiddle
BACKGROUND: The search for a biomarker of Alzheimer's disease (AD) pathology (amyloid-β (Aβ) and tau) is ongoing, with the best markers currently being measurements of Aβ and tau in cerebrospinal fluid (CSF) and via positron emission tomography (PET) scanning. These methods are relatively invasive, costly, and often have high screening failure rates. Consequently, research is aiming to elucidate blood biomarkers of Aβ and tau. OBJECTIVE: This study aims to investigate a case/control polygenic risk score (PGRS) as a marker of tau and investigate blood markers of a combined Aβ and tau outcome for the first time...
November 6, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27830118/variable-phenotypic-expression-of-nonsense-mutation-p-thr5-in-the-apoe-gene
#19
Trond P Leren, Thea Bismo Strøm, Knut Erik Berge
Subjects with hypercholesterolemia who do not carry a mutation in the low density lipoprotein receptor gene, in the apolipoprotein B gene or in the proprotein convertase subtilisin/kexin type 9 gene, could possible carry a mutation in the apolipoprotein E (APOE) gene. DNA from 844 unrelated hypercholesterolemic subjects who did not carry a mutation in any of the three above mentioned genes, was subjected to DNA sequencing of the APOE gene. Two subjects were found to be heterozygous for mutation p.Thr5*. This mutation which generates a stop codon in the signal peptide, is assumed to prevent the synthesis of APOE...
December 2016: Molecular Genetics and Metabolism Reports
https://www.readbyqxmd.com/read/27829582/postprandial-hyperlipidemia-and-remnant-lipoproteins
#20
Daisaku Masuda, Shizuya Yamashita
Fasting hypertriglyceridemia is positively associated with the morbidity of coronary heart disease (CHD), and postprandial (non-fasting) hypertriglyceridemia is also correlated with the risk status for CHD, which is related to the increase in chylomicron (CM) remnant lipoproteins produced from the intestine. CM remnant particles, as well as oxidized low density lipoprotein (LDL) or very low density lipoprotein (VLDL) remnants, are highly atherogenic and act by enhancing systemic inflammation, platelet activation, coagulation, thrombus formation, and macrophage foam cell formation...
November 8, 2016: Journal of Atherosclerosis and Thrombosis
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