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Apolipoprotein A1

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https://www.readbyqxmd.com/read/28721149/apolipoprotein-a1-polymorphisms-and-risk-of-coronary-artery-disease-a-meta-analysis
#1
Lang-Biao Xu, Ya-Feng Zhou, Jia-Lu Yao, Si-Jia Sun, Qing Rui, Xiang-Jun Yang, Xiao-Bo Li
INTRODUCTION: It has been reported that APOA1 -75G/A polymorphism might be associated with susceptibility to coronary artery disease (CAD). Owing to mixed and inconclusive results, we conducted a meta-analysis to systematically summarize and clarify the association between APOA1-75G/A polymorphism and the risk of CAD. MATERIAL AND METHODS: A systematic search of studies on the association of single nucleotide polymorphisms (SNP) with susceptibility to CAD was conducted...
June 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/28720344/apoe-genotype-associates-with-food-consumption-and-body-composition-to-predict-dyslipidaemia-in-brazilian-adults-with-normal-weight-obesity-syndrome
#2
Lana Pacheco Franco, Amanda Gonçalves Zardini Silveira, Rochelle Sobral de Assis Vasconcelos Lima, Maria Aderuza Horst, Cristiane Cominetti
BACKGROUND & AIM: Normal-Weight Obesity Syndrome has been characterized by a normal body mass index and high percentage of body fat. It is associated with an increased risk of cardiovascular disease development. This study aimed to evaluate whether apolipoprotein E (APOE) genotypes and food consumption are related to the lipid profiles of adults with Normal-Weight Obesity Syndrome. METHODS: Analytical cross-sectional study, including adults with Normal-Weight Obesity Syndrome...
July 11, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28712153/proteomic%C3%A2-analysis-reveals-the-enhancement-of-human-serum-apolipoprotein-a-1-apo-a-1-in%C3%A2-individuals%C3%A2-infected-with-multiple-dengue-virus-serotypes
#3
Manchala Nageswar Reddy, Ranjeet Dungdung, Rajendra Pilankatta
OBJECTIVES: Human serum protein profiling of the individual infected with multiple dengue virus serotypes for identifying the potential biomarkers and to investigate the cause for the severity of dengue virus infection. METHODS: Dengue virus NS1 positive serum samples were pooled into two groups (S2 and S3) based on the molecular serotyping and number of heterotypic infections. The pooled serum samples were subjected to two dimensional gel electrophoresis (2DGE) to identify the differentially expressed proteins...
July 16, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28710487/decreased-serum-apolipoprotein-a1-levels-are-associated-with-poor-survival-and-systemic-inflammatory-response-in-colorectal-cancer
#4
Päivi Sirniö, Juha P Väyrynen, Kai Klintrup, Jyrki Mäkelä, Markus J Mäkinen, Tuomo J Karttunen, Anne Tuomisto
Recent studies have reported of an association between high serum apolipoprotein A1 (APOA1) levels and favorable prognosis in several malignancies, while the significance of apolipoprotein B (APOB) in cancer is less well-known. In this study, we analyzed the correlation between serum APOA1 and APOB levels, and APOB/APOA1 ratio, and their associations with clinicopathologic parameters, the levels of twenty systemic inflammatory markers, and survival in 144 colorectal cancer (CRC) patients. We demonstrated that low serum APOA1 levels associated with advanced T-class and TNM-stage but low serum APOB levels did not significantly correlate with tumor characteristics...
July 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28694219/hepatic-abca1-deficiency-is-associated-with-delayed-apolipoprotein-b-secretory-trafficking-and-augmented-vldl-triglyceride-secretion
#5
Mingxia Liu, Soonkyu Chung, Gregory S Shelness, John S Parks
ATP binding cassette transporter A1 (ABCA1) is a membrane transporter that facilitates nascent HDL formation. Tangier disease subjects with complete ABCA1 deficiency have <5% of normal levels of plasma HDL, elevated triglycerides (TGs), and defective vesicular trafficking in fibroblasts and macrophages. Hepatocyte-specific ABCA1 knockout mice (HSKO) have a similar lipid phenotype with 20% of normal plasma HDL levels and a two-fold elevation of plasma TGs due to hepatic overproduction of large, triglyceride-enriched VLDL...
July 7, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28673011/tribbles-homolog-1-enhances-cholesterol-efflux-from-oxidized-low-density-lipoprotein-loaded-thp-1-macrophages
#6
Yanhua Fu, Yang Zhao, Bin Huang
Macrophage foam cell formation plays a pivotal role in the pathogenesis of atherosclerosis. The protein Tribbles homolog 1 (Trib1), a member of the Tribbles protein family, functions as an adaptor or scaffold protein. Recent studies have indicated its implication in lipoprotein metabolism. In the present study, the role of Trib1 in macrophage foam cell formation was investigated. Oil red O staining was used to analyze intracellular lipid deposition, while the effects of Trib1 overexpression on cholesterol efflux were also examined...
July 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28667326/quantitative-proteomics-analysis-of-plasmodium-vivax-induced-alterations-in-human-serum-during-the-acute-and-convalescent-phases-of-infection
#7
Sandipan Ray, Sandip K Patel, Apoorva Venkatesh, Gangadhar Chatterjee, Naziya N Ansari, Nithya J Gogtay, Urmila M Thatte, Prajakta Gandhe, Santosh G Varma, Swati Patankar, Sanjeeva Srivastava
The radial distribution of Plasmodium vivax malaria burden has evoked enormous concern among the global research community. In this study, we have investigated the serum proteome alterations in non-severe vivax malaria patients before and during patient recuperation starting from the early febrile to the defervescence and convalescent stages of the infection. We have also performed an extensive quantitative proteomics analysis to compare the serum proteome profiles of vivax malaria patients with low (LPVM) and moderately-high (MPVM) parasitemia with healthy community controls...
June 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28666268/myeloid-specific-genetic-ablation-of-atp-binding-cassette-transporter-abca1-is-protective-against-cancer
#8
Maryam Zamanian-Daryoush, Daniel J Lindner, Joseph A DiDonato, Matthew Wagner, Jennifer Buffa, Patricia Rayman, John S Parks, Marit Westerterp, Alan R Tall, Stanley L Hazen
Increased circulating levels of apolipoprotein A-I (apoA-I), the major protein of high-density lipoprotein (HDL), by genetic manipulation or infusion, protects against melanoma growth and metastasis. Herein, we explored potential roles in melanoma tumorigenesis for host scavenger receptor class B, type 1 (SR-B1), and ATP-binding cassette transporters A1 (ABCA1) and G1 (ABCG1), all mediators of apoA-I and HDL sterol and lipid transport function. In a syngeneic murine melanoma tumor model, B16F10, mice with global deletion of SR-B1 expression exhibited increased plasma HDL cholesterol (HDLc) levels and decreased tumor volume, indicating host SR-B1 does not directly contribute to HDL-associated anti-tumor activity...
June 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28664876/scaling-up-of-a-heparg-progenitor-cell-based-bioartificial-liver-optimization-for-clinical-application-and-transport
#9
Martien van Wenum, Philipp Treskes, Chung-Yin Tang, Esmee J Coppens, Koen Jansen, Erik J Hendriks, Sandrine Camus, Thomas M van Gulik, Robert A F M Chamuleau, Ruurdtje Hoekstra
A new generation of bioartificial livers, based on differentiated proliferative hepatocyte sources, has been developed. Several practicable and regulatory demands have to be addressed before these can be clinically evaluated. We identified three main hurdles: (1) expansion and preservation of the biocomponent, (2) development of scaled-up culture conditions and (3) transport of the device to the bedside. In this study we address these three issues for the HepaRG-progenitor cell line-loaded AMC-Bioartificial Liver...
June 30, 2017: Biofabrication
https://www.readbyqxmd.com/read/28663044/carotid-artery-plaques-are-risk-factors-the-same-in-men-and-women-with-familial-hypercholesterolemia
#10
Małgorzata Waluś-Miarka, Danuta Czarnecka, Małgorzata Kloch-Badełek, Wiktoria Wojciechowska, Maria Kapusta, Maciej T Malecki
BACKGROUND AND AIMS: High low-density lipoprotein (LDL)-cholesterol levels are a major cause of premature coronary heart disease (CHD) and death in patients with familial hypercholesterolemia (FH). It is uncertain whether these risk factors affect men and women equally. We aimed to compare the risk factors of carotid plaques, which are reliable surrogates of coronary atherosclerosis, in men and women with FH. METHODS: 154 patients with FH (40.9% men) were included, diagnosed according to Simon Broome criteria...
June 21, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28659481/hepatitis-c-virus-strain-dependent-usage-of-apolipoprotein-e-modulates-assembly-efficiency-and-specific-infectivity-of-secreted-virions
#11
Romy Weller, Kathrin Hueging, Richard J P Brown, Daniel Todt, Sebastian Joecks, Florian W R Vondran, Thomas Pietschmann
Hepatitis C virus (HCV) is extraordinarily diverse and uses entry factors in a strain-specific manner. Virus particles associate with lipoproteins and Apolipoprotein E (ApoE) is critical for HCV assembly and infectivity. However, whether ApoE-dependency is common to all HCV genotypes remains unknown. Therefore, we compared the role of ApoE utilizing ten virus strains from genotypes 1 through 7. ApoA and ApoC also support HCV assembly, so they may contribute to virus production in a strain-dependent fashion...
June 28, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28657650/a-review-on-symptoms-treatments-protocols-and-proteomic-profile-in-sulfur-mustard-exposed-victims
#12
Amir Hossein Abdolghaffari, Yunes Panahi, Amirhossein Sahebkar
Sulfur mustard (SM) as an alkylating and vesicating agent was used for 100 years as a chemical weapon. SM as bi-functional mustard can attacks and alkylates lots of biomolecules. Different cellular mechanism and molecular pathways are responsible for damages to body tissues. Such as DNA damages, oxidative stress, Apoptosis and inflammation. Sulfur mustard penetrated body organs and induces long term eye, skin, lung, gastrointestinal, urogenital damages and can cause carcinogenic and mutagenic consequences. Currently there is no definitive treatment protocol for SM exposed patients...
June 28, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28648864/impact-of-plasma-protein-binding-on-cargo-release-by-thermosensitive-liposomes-probed-by-fluorescence-correlation-spectroscopy
#13
Judith J Mittag, Barbara Kneidl, Tobias Preiß, Martin Hossann, Gerhard Winter, Stefan Wuttke, Hanna Engelke, Joachim O Rädler
Thermosensitive liposomes (TSLs) whose phase-transition temperature (Tm) lies slightly above body temperature are ideal candidates for controlled drug release via local hyperthermia. Recent studies, however, have revealed disruptive shifts in the release temperature Tr in mouse plasma, which are attributed to undefined interactions with blood proteins. Here, we study the effects of four major plasma proteins - serum albumin (SA), transferrin (Tf), apolipoprotein A1 (ApoA1) and fibrinogen (Fib) - on the temperature-dependent release of fluorescein di-β-D-galactopyranoside (FDG) from TSLs...
June 22, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/28637682/cellular-mechanism-of-fibril-formation-from-serum-amyloid-a1-protein
#14
Stephanie Claus, Katrin Meinhardt, Tobias Aumüller, Ioana Puscalau-Girtu, Julia Linder, Christian Haupt, Paul Walther, Tatiana Syrovets, Thomas Simmet, Marcus Fändrich
Serum amyloid A1 (SAA1) is an apolipoprotein that binds to the high-density lipoprotein (HDL) fraction of the serum and constitutes the fibril precursor protein in systemic AA amyloidosis. We here show that HDL binding blocks fibril formation from soluble SAA1 protein, whereas internalization into mononuclear phagocytes leads to the formation of amyloid. SAA1 aggregation in the cell model disturbs the integrity of vesicular membranes and leads to lysosomal leakage and apoptotic death. The formed amyloid becomes deposited outside the cell where it can seed the fibrillation of extracellular SAA1...
June 21, 2017: EMBO Reports
https://www.readbyqxmd.com/read/28635360/the-association-between-apolipoprotein-a1-c3-a5-gene-cluster-promoter-polymorphisms-and-risk-of-ischemic-stroke-in-the-northern-chinese-han-population
#15
Yanzhe Wang, Fang Liu, Lei Li, Shumin Deng, Zhiyi He
Objective Given its effects on lipid metabolism, the apolipoprotein A1-C3-A5 ( APOA1-C3-A5) gene cluster is thought to play an important role in ischemic stroke pathogenesis. Here, we evaluated whether the APOA1-C3-A5 cluster is associated with ischemic stroke in the northern Chinese Han population. Methods This case-control study analyzed 812 patients with ischemic stroke and 844 healthy controls with regard to four APOA1-C3-A5 cluster promoter single nucleotide polymorphisms (SNPs), rs670, rs2854116, rs2854117, and rs662799, using the SNaPshot Multiplex sequencing assay...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28632844/complement-mediated-regulation-of-apolipoprotein-e-in-cultured-human-rpe-cells
#16
Ping Yang, Nikolai P Skiba, Grace M Tewkesbury, Victoria M Treboschi, Peter Baciu, Glenn J Jaffe
PURPOSE: Complement activation is implicated in the pathogenesis of age-related macular degeneration (AMD). Apolipoprotein E (ApoE) and complement activation products such as membrane attack complex (MAC) are present in eyes of individuals with AMD. Herein, we investigated the effect of complement activation on induction of ApoE accumulation in human retinal pigment epithelial (RPE) cells. METHODS: Cultured human RPE cells were primed with a complement-fixing antibody followed by treatment with C1q-depleted (C1q-Dep) human serum to elicit alternative pathway complement activation...
June 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28631820/dietary-intake-of-structured-lipids-with-different-contents-of-medium-chain-fatty-acids-on-obesity-prevention-in-c57bl-6j-mice
#17
Shengmin Zhou, Yueqiang Wang, Yuanrong Jiang, Zhongfei Zhang, Xiangjun Sun, Liangli Lucy Yu
Three medium- and long-chain triacylglycerols (MLCT) with different contents of medium-chain fatty acids (MCFA) (10% to 30%, w/w) were prepared and evaluated for their anti-obesity potential in C57BL/6J mice. The group fed with a high fat diet of MLCT containing 30% (w/w) MCFA showed significantly decreased body weight and fat mass (P < 0.05) relative to the control mice fed an obesity-inducing high fat rapeseed oil diet. In addition, serum parameters including triacylglycerols, total cholesterol, glucose, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, apolipoprotein A1 and apolipoprotein B in the treatment group fed with 30% (w/w) MCFA were close to those of mice fed with a low fat rapeseed oil diet, but significantly different (P < 0...
June 20, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28615375/inclusion-of-almonds-in-a-cholesterol-lowering-diet-improves-plasma-hdl-subspecies-and-cholesterol-efflux-to-serum-in-normal-weight-individuals-with-elevated-ldl-cholesterol
#18
Claire E Berryman, Jennifer A Fleming, Penny M Kris-Etherton
Background: Almonds may increase circulating HDL cholesterol when substituted for a high-carbohydrate snack in an isocaloric diet, yet little is known about the effects on HDL biology and function.Objective: The objective was to determine whether incorporating 43 g almonds/d in a cholesterol-lowering diet would improve HDL subspecies and function, which were secondary study outcomes.Methods: In a randomized, 2-period, crossover, controlled-feeding study, a diet with 43 g almonds/d (percentage of total energy: 51% carbohydrate, 16% protein, and 32% total and 8% saturated fat) was compared with a similar diet with an isocaloric muffin substitution (58% carbohydrate, 15% protein, and 26% total and 8% saturated fat) in men and women with elevated LDL cholesterol...
June 14, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28595037/plasma-apolipoprotein-a1-levels-at-diagnosis-are-independent-prognostic-factors-in-invasive-ductal-breast-cancer
#19
Xiaorong Lin, Shubin Hong, Jiefeng Huang, Yi Chen, Yufeng Chen, Zhiyong Wu
Strong evidence exists indicating that the risk of breast cancer (BC) occurrence is influenced by complex internal environmental factors, including blood lipid and lipoprotein components. However, the roles of these components in BC development and progression remain controversial. This study examined whether serial serum lipid and lipoprotein measurements were associated with breast cancer risk and whether lipoproteins had BC prognostic properties. We compared the plasma-related parameter levels, including lipid and lipoprotein levels between 299 patients with invasive ductal breast cancer, also known as invasive ductal carcinoma (IDC), and 200 healthy donors...
April 2017: Discovery Medicine
https://www.readbyqxmd.com/read/28592917/persistent-unresolved-inflammation-in-the-mecp2-308-female-mutated-mouse-model-of-rett-syndrome
#20
Alessio Cortelazzo, Claudio De Felice, Bianca De Filippis, Laura Ricceri, Giovanni Laviola, Silvia Leoncini, Cinzia Signorini, Monica Pescaglini, Roberto Guerranti, Anna Maria Timperio, Lello Zolla, Lucia Ciccoli, Joussef Hayek
Rett syndrome (RTT) is a rare neurodevelopmental disorder usually caused by mutations in the X-linked gene methyl-CpG-binding protein 2 (MECP2). Several Mecp2 mutant mouse lines have been developed recapitulating part of the clinical features. In particular, Mecp2-308 female heterozygous mice, bearing a truncating mutation, are a validated model of the disease. While recent data suggest a role for inflammation in RTT, little information on the inflammatory status in murine models of the disease is available...
2017: Mediators of Inflammation
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