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Apolipoprotein A1

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https://www.readbyqxmd.com/read/28088205/quercetin-improves-macrophage-reverse-cholesterol-transport-in-apolipoprotein-e-deficient-mice-fed-a-high-fat-diet
#1
Yingjie Cui, Pengbo Hou, Fahui Li, Qinghua Liu, Shucun Qin, Guanghai Zhou, Xuelian Xu, Yanhong Si, Shoudong Guo
BACKGROUND: Quercetin, one of the most widely distributed flavonoids in plants, has been demonstrated to reduce hyperlipidaemia and atherosclerotic lesion formation. Reverse cholesterol transport (RCT) plays a crucial role in exporting cholesterol from peripheral cells, which is one mechanism utilized in the prevention and treatment of atherosclerosis. The aim of this study is to investigate whether quercetin reduces lipid accumulation by improving RCT in vivo. METHODS: Apolipoprotein E-deficient mice fed a high-fat diet were used to investigate the effect of quercetin on RCT by an isotope tracing method, and the underlying mechanisms were clarified by molecular techniques...
January 14, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28072742/the-nonlinear-association-between-apolipoprotein-b-to-apolipoprotein-a1-ratio-and-type-2-diabetes
#2
Yong Mao, Yang Xu, Leihong Lu
The ratio of ApoB/apolipoprotein A1 (ApoA1) has been found to be associated with type 2 diabetes, and it was proposed as a new biomarker for type 2 diabetes predictions. Previous studies have assumed that the association between apoB/apoA1 and type 2 diabetes was linear. However, the linearity assumption has rarely been examined. In the present study, we aimed to examine whether this association showed a linear trend in a nationally representative population.Participants aged 18 years and over (n = 8220) were selected from the China Health Nutrition Survey (CHNS)...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28056980/association-of-the-sptlc3-rs364585-polymorphism-and-serum-lipid-profiles-in-two-chinese-ethnic-groups
#3
Qing-Hui Zhang, Rui-Xing Yin, Hui Gao, Feng Huang, Jin-Zhen Wu, Shang-Ling Pan, Wei-Xiong Lin, De-Zhai Yang
BACKGROUND: Little is known about the association of the single nucleotide polymorphism (SNP) of rs364585 near serine palmitoyl-transferase long-chain base subunit 3 gene (SPTLC3) and serum lipid profiles. The present study was detected the association of the SPTLC3 rs364585 SNP and several environmental factors with serum lipid profiles in the Han and Jing populations. METHODS: Genotyping of the SPTLC3 rs364585 SNP was performed in 824 unrelated individuals of Han and 783 participants of Jing by polymerase chain reaction and restriction fragment length polymorphism combined with gel electrophoresis, and then confirmed by direct sequencing...
January 5, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28045435/maternal-circulating-lipid-profile-during-early-pregnancy-racial-ethnic-differences-and-association-with-spontaneous-preterm-delivery
#4
Xinhua Chen, Theresa O Scholl, Thomas P Stein, Robert A Steer, Keith P Williams
Prior reports on the association between altered maternal serum lipid levels with preterm delivery are inconsistent. Ethnic differences in serum lipids during pregnancy and their relation to preterm delivery have not been studied. We examined the relationships of six maternal lipids during early pregnancy with the risk of spontaneous preterm delivery (SPTD). The design represents a case-control study nested within a large prospective, multiethnic cohort of young, generally healthy pregnant women. SPTD cases (n = 183) and controls who delivered at term (n = 376) were included...
January 1, 2017: Nutrients
https://www.readbyqxmd.com/read/28038449/low-serum-paraoxonase1-activity-levels-predict-coronary-artery-disease-severity
#5
Ting Sun, Jingchao Hu, Zhaofang Yin, Zuojun Xu, Liang Zhang, Li Fan, Yang Zhuo, Changqian Wang
Paraoxonase1 (PON1) activity is closely related to coronary artery disease (CAD). However, whether PON1 activity can predict the degree of coronary stenosis remains unknown. In the present study, the serum PON1 activity and related factors that influence PON1 activity were analyzed in 186 patients with diagnostic coronary angiography. The serum PON1 activity was determined using a spectrophotometry-based assay in 186 patients with diagnostic coronary angiography, in which coronary stenosis severity was graded and clinically defined as single- or multi-vessel stenosis >50%...
December 27, 2016: Oncotarget
https://www.readbyqxmd.com/read/28036103/elevated-tumour-necrosis-factor-alpha-was-associated-with-intima-thickening-in-obese-children
#6
Bo Luo, Yi-Can Yang, Qing Zhou, Xiao-Hui Wu, Ke Huang, Chao-Chun Zou
AIM: This study investigated the relationship between intima-media thickness (IMT) and immune parameters in obese children from five to 16 years of age. METHODS: We enrolled 185 obese children with a mean age of 10.65±2.10 years and 211 controls with a mean age of 10.32±1.81 years. Glycometabolism, lipid metabolism, sex hormones, immune indices and carotid IMT were measured. RESULTS: Serum interleukin (IL)-6, IL-10, tumour necrosis factor (TNF)-alpha, white blood cells and common and internal carotid artery IMTs in the obese group were higher than those in the control group (p<0...
December 30, 2016: Acta Paediatrica
https://www.readbyqxmd.com/read/28035918/apolipoprotein-a1-in-cerebrospinal-fluid-and-plasma-and-progression-to-alzheimer-s-disease-in-non-demented-elderly
#7
Rosalinde E R Slot, Argonde C Van Harten, Maartje I Kester, Wesley Jongbloed, Femke H Bouwman, Charlotte E Teunissen, Philip Scheltens, Robert Veerhuis, Wiesje M van der Flier
BACKGROUND: HDL-cholesterol transporter Apolipoprotein A1 (ApoA1) holds neuroprotective properties, such as inhibition of amyloid-β aggregation. Low plasma ApoA1 concentrations are associated with Alzheimer's disease (AD). Little is known about ApoA1 levels in the pre-dementia stages of AD. OBJECTIVE: To investigate associations between cerebrospinal fluid (CSF) and plasma ApoA1 levels and clinical progression toward AD in non-demented elderly. METHODS: From the Amsterdam Dementia Cohort, we included 429 non-demented elderly with subjective cognitive decline (SCD; n = 206, 61±9 years, Mini-Mental State Exam (MMSE) 28±2) and mild cognitive impairment (MCI; n = 223, 67±8 years, MMSE 27±2), with a mean follow-up of 2...
December 30, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28029409/serum-concentrations-and-gene-expression-of-sirtuin-1-in-healthy-and-slightly-overweight-subjects-after-caloric-restriction-or-resveratrol-supplementation-a-randomized-trial
#8
Antonio P Mansur, Alessandra Roggerio, Marisa F S Goes, Solange D Avakian, Dalila P Leal, Raul C Maranhão, Célia M C Strunz
BACKGROUND: Sirtuin 1 (Sirt1) plays an important role in vascular biology, and influences aspects of age-dependent atherosclerosis. In animals, the sirtuin system is strongly influenced by resveratrol and caloric restriction, but its expression in humans is controversial. This study investigated the effects of resveratrol and caloric restriction on Sirt1 serum concentrations and vascular biomarkers in a healthy human population. METHODS AND RESULTS: Forty-eight healthy participants (24 women) aged 55-65years were randomized to either 30days of resveratrol administration (500mg/day) or caloric restriction (1000cal/day)...
October 27, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/28028143/abca1-apoe-hdl-pathway-mediates-gw3965-induced-neurorestoration-after-stroke
#9
Xu Cui, Michael Chopp, Zhenggang Zhang, Rongwen Li, Alex Zacharek, Julie Landschoot-Ward, Poornima Venkat, Jieli Chen
BACKGROUND AND PURPOSE: ATP-binding cassette transporter A1 (ABCA1) is a major reverse cholesterol transporter and plays critical role in the formation of brain high-density lipoprotein (HDL) cholesterol. Apolipoprotein E (ApoE) is the most abundant apolipoprotein and transports cholesterol into cells in brain. ABCA1 and ApoE are upregulated by liver-X receptors. Activation of liver-X receptors has neurorestorative benefit for stroke. The current study investigates whether ABCA1/ApoE/HDL pathway mediates GW3965, a synthetic dual liver-X receptor agonist, induced neurorestoration after stroke...
December 27, 2016: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28012395/regulatory-mechanism-of-mineral-balanced-deep-sea-water-on-hypocholesterolemic-effects-in-hepg2-hepatic-cells
#10
Kyu-Shik Lee, Yun-Suk Kwon, Soyoung Kim, Deok-Soo Moon, Hyeon Ju Kim, Kyung-Soo Nam
Several previous studies have shown the benefits of deep sea water (DSW) in lipid metabolism. However, the effects of DSW on cellular cholesterol accumulation and synthesis induced by high glucose or free fatty acid plus high glucose [4.5g/L] (FFA/glucose) have not been fully elucidated to date. Herein, we showed the effects of mineral-balanced DSW [magnesium (Mg):calcium (Ca)=3:1] (MB-DSW) on cholesterol metabolism induced by high glucose or FFA/glucose in HepG2 hepatic cells. Moreover, the effects of high ratio Mg DSW [Mg:Ca=40:1] (Mg40) were also investigated...
December 21, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27995841/relationship-between-copper-and-lipids-and-atherogenic-indices-soon-after-birth-in-japanese-preterm-infants-of-32-35-weeks
#11
H Shoji, N Ikeda, C Kojima, T Kitamura, H Suganuma, K Hisata, S Hirayama, T Ueno, T Miida, T Shimizu
Several studies have reported association of altered levels of lipids and some trace elements with risk factors for cardiovascular disease development in adulthood. Accordingly, the present study aimed to determine the relationship among the serum levels of copper (Cu), zinc (Zn), lipids, lipoproteins and apolipoproteins in preterm infants through an assessment of atherogenic indices shortly after birth. Blood samples were collected within 20 min of birth from 45 preterm infants with gestational ages ranging from 32 to 35 weeks...
December 20, 2016: Journal of Developmental Origins of Health and Disease
https://www.readbyqxmd.com/read/27990182/effect-of-atp-binding-cassette-transporter-a1-abca1-gene-polymorphisms-on-plasma-lipid-variables-and-common-demographic-parameters-in-greek-nurses
#12
Vana Kolovou, Apostolia Marvaki, Maria Boutsikou, Georgios Vasilopoulos, Dimitrios Degiannis, Christina Marvaki, Genovefa Kolovou
OBJECTIVE: The present study is on line with our previous studies evaluating the influence of ATP-binding cassette transporter A1 (ABCA1) gene polymorphisms on the lipid variables of Greek student-nurses. The current study was undertaken to (1) estimate the influence of variant(s) such as rs2066715 (V825I), R219K, R1587K, I883M of ABCA1 gene on lipid variables and (2) evaluate the effect of all four ABCA1 polymorphisms on common demographic parameters. METHODS: The study population involved 432 unrelated nurses (86 men) who were genotyped for ABCA1 polymorphisms and correlated according to lipid variables [total cholesterol (TC), triglycerides (TGs), high density lipoprotein cholesterol (HDL-C), low density lipoprotein cholesterol (LDL-C) and apolipoprotein (apo) A] and demographic parameters (age, gender, BMI, waist circumference)...
2016: Open Cardiovascular Medicine Journal
https://www.readbyqxmd.com/read/27934109/in-vivo-biotransformation-of-the-fusion-protein-tetranectin-apolipoprotein-a1-analyzed-by-ligand-binding-mass-spectrometry-combined-with-quantitation-by-elisa
#13
Manfred Zell, Christophe Husser, Roland F Staack, Gregor Jordan, Wolfgang F Richter, Simone Schadt, Axel Pähler
The in vivo biotransformation of a novel fusion protein tetranectin/apolipoprotein A1 (TN-ApoA1) was investigated by ligand-binding mass spectrometry (LB-MS) in support of enzyme-linked immunosorbent assays (ELISA). The main focus was on catabolites formed by proteolysis of the fusion protein in rabbit following intravenous administration of lipidated TN-ApoA1. The drug and its catabolites were isolated from rabbit plasma by immunocapture with a monoclonal antibody (mAb) binding to the fusion region of TN-ApoA1...
December 6, 2016: Analytical Chemistry
https://www.readbyqxmd.com/read/27922847/apolipoprotein-e-metabolism-and-functions-in-brain-and-its-role-in-alzheimer-s-disease
#14
Fan Liao, Hyejin Yoon, Jungsu Kim
PURPOSE OF REVIEW: APOE4 genotype is the strongest genetic risk factor for Alzheimer's disease. Prevailing evidence suggests that amyloid β plays a critical role in Alzheimer's disease. The objective of this article is to review the recent findings about the metabolism of apolipoprotein E (ApoE) and amyloid β and other possible mechanisms by which ApoE contributes to the pathogenesis of Alzheimer's disease. RECENT FINDINGS: ApoE isoforms have differential effects on amyloid β metabolism...
February 2017: Current Opinion in Lipidology
https://www.readbyqxmd.com/read/27909203/lipid-changes-around-the-final-menstrual-period-predict-carotid-subclinical-disease-in-postmenopausal-women
#15
Karen A Matthews, Samar R El Khoudary, Maria M Brooks, Carol A Derby, Siobán D Harlow, Emma J M Barinas-Mitchell, Rebecca C Thurston
BACKGROUND AND PURPOSE: Atherogenic changes in lipids occur among women around the time of the natural menopause, that is, within 1 year of the final menstrual period (FMP). We investigated whether lipid changes around the FMP are related to carotid intima-media thickness, interadventitial diameter, and plaque in postmenopausal women. METHODS: A total of 863 natural postmenopausal women with no history of heart attack or stroke underwent carotid ultrasound scans at follow-up year 12 or 13 of the Study of Women's Health Across the Nation...
January 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/27891330/evaluation-of-lipid-profile-and-apolipoproteins-in-essential-hypertensive-patients
#16
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/27890580/lipid-free-apoa-i-structure-origins-of-model-diversity
#17
REVIEW
Michael N Oda
Apolipoprotein A-I (apoA-I) is a prominent member of the exchangeable apolipoprotein class of proteins, capable of transitioning between lipid-bound and lipid-free states. It is the primary structural and functional protein of high density lipoprotein (HDL). Lipid-free apoA-I is critical to de novo HDL formation as it is the preferred substrate of the lipid transporter, ATP Binding Cassette Transporter A1 (ABCA1) Remaley et al. (2001) [1]. Lipid-free apoA-I is an important element in reverse cholesterol transport and comprehension of its structure is a core issue in our understanding of cholesterol metabolism...
February 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27887752/changes-in-plasma-fatty-acid-composition-are-associated-with-improvements-in-obesity-and-related-metabolic-disorders-a-therapeutic-approach-to-overweight-adolescents
#18
Marcela Guerendiain, Rosa Montes, Gemma López-Belmonte, Miguel Martín-Matillas, Ana I Castellote, Elena Martín-Bautista, Amelia Martí, J Alfredo Martínez, Luis Moreno, Jesús Mª Garagorri, Julia Wärnberg, Javier Caballero, Ascensión Marcos, M Carmen López-Sabater, Cristina Campoy
BACKGROUND & AIMS: In recent years, obesity has reached alarming levels among children and adolescents. The study of plasma fatty acid (FA) composition, as a reflection of diet, and its associations with other parameters, that are closely linked to obesity and the cardiometabolic profile, may be useful for setting nutritional goals for obesity treatment and prevention. This study explored the relationship between plasma FA levels and body fat and cardiometabolic risk markers, in overweight adolescents...
November 11, 2016: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/27865270/serum-apolipoprotein-a1-as-a-possible-biomarker-for-monitoring-treatment-of-canine-leishmaniosis
#19
Damián Escribano, Asta Tvarijonaviciute, Meric Kocaturk, Jose Joaquín Cerón, Luis Pardo-Marín, Alejandro Torrecillas, Zeki Yilmaz, Silvia Martínez-Subiela
The aims of this study were: the identification of proteins differentially represented in the serum proteome of dogs with leishmaniosis after treatment and the verification of one selected protein as a possible biomarker for treatment monitoring. Serum samples from five dogs with leishmaniosis, before and after treatment were pooled into two groups and analysed using 2-dimensional electrophoresis followed by mass spectrometry analysis (MS). The MS analysis allowed the identification of 8 proteins differently expressed...
December 2016: Comparative Immunology, Microbiology and Infectious Diseases
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
#20
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
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