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https://www.readbyqxmd.com/read/28747775/curcumin-and-curcuma-longa-l-extract-ameliorate-lipid-accumulation-through-the-regulation-of-the-endoplasmic-reticulum-redox-and-er-stress
#1
Hwa-Young Lee, Seung-Wook Kim, Geum-Hwa Lee, Min-Kyung Choi, Han-Wool Chung, Yong-Chul Lee, Hyung-Ryong Kim, Ho Jeong Kwon, Han-Jung Chae
For this study, we examined the effects of curcumin against acute and chronic stress, paying specific attention to ROS. We also aimed to clarify the differences between acute and chronic stress conditions. We investigated the effects of curcumin against acute stress (once/1 day CCl4 treatment) and chronic-stress (every other day/4week CCl4 treatment). Compared with acute stress, in which the antioxidant system functioned properly and aspartate transaminase (AST) and ROS production increased, chronic stress increased AST, alanine aminotransferase (ALT), hepatic enzymes, and ROS more significantly, and the antioxidant system became impaired...
July 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28739396/genetic-association-of-pro-inflammatory-cytokine-gene-polymorphisms-with-coronary-artery-disease-cad-in-a-north-indian-population
#2
Sarabjit Mastana, Swayam Prakash, Elizabeth C Akam, Melissa Kirby, Martin R Lindley, Nakul Sinha, Suraksha Agrawal
BACKGROUND: Cytokines regulate the expression of inflammatory molecules which destabilize the atheromatic plaques. This study focuses on studying the association of inflammatory cytokine polymorphisms like TNF-α -308 (G/A), TNF-β +252 (A/G), IL-6 -174 (G/C) and IL-6 -597 (G/A), and IFN-ɣ +874 (T/A) with coronary artery disease (CAD) among north Indian patients. MATERIALS AND METHODS: 143 CAD and 137 normal healthy controls were recruited in this study. DNA extraction was carried out by high salting out method...
July 21, 2017: Gene
https://www.readbyqxmd.com/read/28738677/quantitation-of-87-proteins-by-nlc-mrm-ms-in-human-plasma-workflow-for-large-scale-analysis-of-biobank-samples
#3
Melinda Rezeli, Karin Sjödin, Henrik Lindberg, Olof Gidlöf, Bertil Lindahl, Tomas Jernberg, Jonas Spaak, David Erlinge, György Marko-Varga
A multiple reaction monitoring (MRM) assay was developed for precise quantitation of 87 plasma proteins including the three isoforms of apolipoprotein E (APOE) associated with cardiovascular diseases using nanoscale liquid chromatography separation and stable isotope dilution strategy. The analytical performance of the assay was evaluated and we found an average technical variation of 4.7 % in 4 - 5 orders of magnitude dynamic range (≈ 0.2 mg/L to 4.5 g/L) from whole plasma digest. Here, we report a complete workflow, including sample processing adapted to 96-well plate format and normalization strategy for large-scale studies...
July 25, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28736372/-clinical-value-of-apolipoprotein-b-versus-low-density-lipoprotein-cholesterol-in-assessing-risks-of-coronary-artery-disease
#4
Si Chen, Jin-Zhen Zhao, Jing Hu, Zhi-Gang Guo
OBJECTIVE: To compare the value of apolipoprotein B (apoB) and low-density lipoprotein cholesterol (LDL-C) in assessing the risk of coronary heart disease in patients with inconsistent apoB and LDL-C levels. METHODS: In a total of 603 patients undergoing coronary angiography, apoB and LDL-C levels were categorized into high and low levels relative to the median levels of apoB and LDL-C, based on which the patients were divided into 4 groups with low apoB/low LDL-C, low apoB/high LDL-C, high apoB/low LDL-C, or high apoB/high LDL-C...
July 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28734274/genetic-analysis-of-iranian-patients-with-familial-hypercholesterolemia
#5
Mahdis Ekrami, Maryam Torabi, Soudeh Ghafouri-Fard, Javad Mowla, Bahram Mohammad Soltani, Feyzollah Hashemi-Gorji, Zahra Mohebbi, Mohammad Miryounesi
Background: Familial hypercholesterolemia (FH) is a frequent autosomal dominant disorder of lipoprotein metabolism. This disorder is generally caused by mutations in low-density lipoprotein receptor (LDLR), apolipoprotein B 100 (APOB), and proprotein convertase subtilisin/kexin type 9 (PCSK9) genes. In the present study, we aimed at identifying the common LDLR and APOB gene mutations in an Iranian population. Methods: Eighty unrelated Iranian patients with FH entered the study, based on Simon Broome diagnostic criteria...
July 23, 2017: Iranian Biomedical Journal
https://www.readbyqxmd.com/read/28733727/low-density-lipoproteins-investigated-under-high-hydrostatic-pressure-by-elastic-incoherent-neutron-scattering
#6
J Peters, N Martinez, B Lehofer, R Prassl
Human low-density lipoprotein (LDL) is a highly complex nano-particle built up of various lipid classes and a single large protein moiety (apoB-100) owning essential physiological functions in the human body. Besides its vital role as a supplier of cholesterol and fat for peripheral tissues and cells, it is also a known key player in the formation of atherosclerosis. Due to these important roles in physiology and pathology the elucidation of structural and dynamical details is of great interest. In the current study we drew a broader picture of LDL dynamics using elastic incoherent neutron scattering (EINS) as a function of specified temperature and pressure points...
July 2017: European Physical Journal. E, Soft Matter
https://www.readbyqxmd.com/read/28733173/clinical-and-biochemical-characteristics-of-individuals-with-low-cholesterol-syndromes-a%C3%A2-comparison-between-familial-hypobetalipoproteinemia-and-familial-combined-hypolipidemia
#7
Alessia Di Costanzo, Enza Di Leo, Davide Noto, Angelo Baldassare Cefalù, Ilenia Minicocci, Luca Polito, Laura D'Erasmo, Vito Cantisani, Rossella Spina, Patrizia Tarugi, Maurizio Averna, Marcello Arca
BACKGROUND: The most frequent monogenic causes of low plasma cholesterol are familial hypobetalipoproteinemia (FHBL1) because of truncating mutations in apolipoprotein B coding gene (APOB) and familial combined hypolipidemia (FHBL2) due to loss-of-function mutations in ANGPTL3 gene. OBJECTIVE: A direct comparison of lipid phenotypes of these 2 conditions has never been carried out. In addition, although an increased prevalence of liver steatosis in FHBL1 has been consistently reported, the hepatic consequences of FHBL2 are not well established...
June 24, 2017: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/28729361/cetp-cholesteryl-ester-transfer-protein-inhibition-with-anacetrapib-decreases-production-of-lipoprotein-a-in-mildly-hypercholesterolemic-subjects
#8
Tiffany Thomas, Haihong Zhou, Wahida Karmally, Rajasekhar Ramakrishnan, Stephen Holleran, Yang Liu, Patricia Jumes, John A Wagner, Brian Hubbard, Stephen F Previs, Thomas Roddy, Amy O Johnson-Levonas, David E Gutstein, Santica M Marcovina, Daniel J Rader, Henry N Ginsberg, John S Millar, Gissette Reyes-Soffer
OBJECTIVE: Lp(a) [lipoprotein (a)] is composed of apoB (apolipoprotein B) and apo(a) [apolipoprotein (a)] and is an independent risk factor for cardiovascular disease and aortic stenosis. In clinical trials, anacetrapib, a CETP (cholesteryl ester transfer protein) inhibitor, causes significant reductions in plasma Lp(a) levels. We conducted an exploratory study to examine the mechanism for Lp(a) lowering by anacetrapib. APPROACH AND RESULTS: We enrolled 39 participants in a fixed-sequence, double-blind study of the effects of anacetrapib on the metabolism of apoB and high-density lipoproteins...
July 20, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28725318/detection-of-apolipoprotein-e-gene-polymorphism-and-blood-lipid-level-in-hemodialysis-patients
#9
Yuxin Wang, Ning Wang, Yuanshan Lu, Qing Yu, Lina Zhou, Qinjun Xu
BACKGROUND: The aim was to investigate the clinical characteristics of lipid metabolism and the effect of apolipoprotein E (ApoE) gene polymorphism on lipid metabolism in hemodialysis patients. METHODS: The serum levels of total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol (HDLC), low-density lipoprotein cholesterol (LDLC), ApoA1, ApoB, ApoE and lipoprotein Lp(a) were detected by polymerase chain reaction-restriction fragment length (PCR-RFLP)...
August 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28718192/cardiometabolic-risks-vary-by-weight-status-in-pediatric-kidney-and-liver-transplant-recipients-a-cross-sectional-single-center-study-in-the-usa
#10
S He, N A Le, J K Frediani, P D Winterberg, R Jin, R Liverman, A Hernandez, R L Cleeton, M B Vos
There is an increasing need to understand long-term metabolic changes and resultant comorbidities because life expectancy is increasing after pediatric kidney and liver transplants. We evaluated differences in classic and novel cardiometabolic biomarkers among obese and normal weight adolescent transplant recipients. We enrolled a total of 80 adolescent (mean±SD, 14.8 years ±3.0) transplant recipients (63 kidney, 17 liver) with mean duration from transplantation of 6.0 (±4.1) years. Among kidney transplant recipients, overweight and obese individuals had higher leptin (16...
July 17, 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/28716818/intimal-hyperplasia-induced-by-vascular-intervention-causes-lipoprotein-retention-and-accelerated-atherosclerosis
#11
Siavash Kijani, Ana Maria Vázquez, Malin Levin, Jan Borén, Per Fogelstrand
Accelerated atherosclerosis diminishes the long term patency of vascular interventions, such as percutaneous coronary intervention and implantation of saphenous vein grafts. However, the cause of this accelerated atherosclerosis is unclear. In this study, we tested the hypothesis that intimal hyperplasia formed following vascular intervention promotes retention of atherogenic lipoproteins. Intimal hyperplasia was surgically induced in the mouse common carotid artery. The surgery was combined with different mouse models of hypercholesterolemia to obtain different cholesterol levels and to control the onsets of hypercholesterolemia...
July 2017: Physiological Reports
https://www.readbyqxmd.com/read/28711866/identification-of-apob-100-peptide-specific-cd8-t-cells-in-atherosclerosis
#12
Paul C Dimayuga, Xiaoning Zhao, Juliana Yano, Wai Man Lio, Jianchang Zhou, Peter M Mihailovic, Bojan Cercek, Prediman K Shah, Kuang-Yuh Chyu
BACKGROUND: T cells are found in atherosclerotic plaques, with evidence supporting a potential role for CD8+ T cells in atherogenesis. Prior studies provide evidence of low-density lipoprotein and apoB-100 reactive T cells, yet specific epitopes relevant to the disease remain to be defined. The current study was undertaken to identify and characterize endogenous, antigen-specific CD8+ T cells in atherosclerosis. METHODS AND RESULTS: A peptide fragment of apoB-100 that tested positive for binding to the mouse MHC-I allele H2K(b) was used to generate a fluorescent-labeled H2K(b) pentamer and tested in apoE(-/-) mice...
July 15, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28710487/decreased-serum-apolipoprotein-a1-levels-are-associated-with-poor-survival-and-systemic-inflammatory-response-in-colorectal-cancer
#13
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/28705542/effect-of-coronary-artery-disease-risk-snps-on-serum-cytokine-levels-and-cytokine-imbalance-in-premature-coronary-artery-disease
#14
Wafa M Ansari, Steve E Humphries, Abdul K Naveed, Omer J Khan, Dilshad A Khan, Ejaz Hassan Khattak
BACKGROUND: Premature Coronary Artery Disease (PCAD) occurs almost a decade earlier in the South Asian population as compared to the West. Inclusion of genetic information can prove to be a robust measure to improve early risk prediction of PCAD. Aim was to estimate the genotypic distribution and risk allele frequencies of 13 Coronary Artery Disease (CAD) risk Single Nucleotide Polymorphisms in loci identified by the CARDIoGRAMplusC4D consortium namely MIA3 rs17465637; 9p21 rs10757274; CXCL12 rs1746048; APOA5 rs662799; APOB rs1042031; LPA rs3798220; LPA 10455872; MRAS rs9818870; LPL rs328; SORT1 rs646776; PCSK9 rs11591147; APOE rs429358; APOE rs7412 in Pakistani PCAD patients and controls...
July 10, 2017: Cytokine
https://www.readbyqxmd.com/read/28702990/the-relationship-of-amphipathic-beta-structures-in-the-beta-1-domain-of-apolipoprotein-b-to-the-properties-of-the-secreted-lipoprotein-particles-in-mca-rh7777-cells
#15
Medha Manchekar, Richa Kapil, Zhihuan Sun, Jere P Segrest, Nassrin Dashti
Our previous studies demonstrated that the first 1000 amino acid residues (the βα1 domain) of human apolipoprotein (apo) B-100, referred to as apoB:1000, are required for the initiation of lipoprotein assembly and the formation of a monodisperse stable phospholipid (PL)-rich particle. The objectives of this study were to: a) assess the effects on the properties of apoB truncates undergoing sequential inclusion of the amphipathic β strands in the N-terminal 700 residues of the β1 domain of apoB-100, and b) identify the subdomain in the β1 domain that is required for the formation of a microsomal triglyceride transfer protein (MTP)-dependent triacylglycerol (TAG)-rich apoB-containing particle...
July 13, 2017: Biochemistry
https://www.readbyqxmd.com/read/28700834/petroleum-ether-extract-of-njavara-rice-bran-upregulates-jak2-stat3-mediated-anti-inflammatory-profile-in-macrophages-and-aortic-endothelial-cells-promoting-regression-of-atherosclerosis
#16
Chithra K Pushpan, Jayalekshmy Ananthasankaran, Helen Antony
"Njavara"(Oryza sativa Linn) is a unique rice variety grown in Kerala that is reported to have significantly higher antioxidant, anti-inflammatory, chemical indices, and bioactive components compared with staple rice varieties. However, the role of NBE in reversing the atherosclerosis development remains unclear. The present study aimed to elucidate the role of Njavara rice bran petroleum ether extract (NBE) in promoting atherosclerotic regression. Male New Zealand white breed rabbits were divided into three groups...
July 12, 2017: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
https://www.readbyqxmd.com/read/28697767/the-impact-of-the-time-of-drug-administration-on-the-effectiveness-of-combined-treatment-of-hypercholesterolemia-with-rosuvastatin-and-ezetimibe-roseze-study-protocol-for-a-randomized-controlled-trial
#17
Karolina Obońska, Michał Kasprzak, Joanna Sikora, Ewa Obońska, Krzysztof Racki, Natalia Goździkiewicz, Magdalena Krintus, Jacek Kubica
BACKGROUND: Hypercholesterolemia is one of the main risk factors for cardiovascular disease. The first line treatment for hypercholesterolemia is statin therapy. When the expected low-density lipoprotein cholesterol (LDL-C) concentration is not achieved, the pharmacotherapy may be extended by combining the statin with the cholesterol absorption inhibitor ezetimibe. METHODS/DESIGN: The study is designed as a randomized, open-label, single-center, crossover study evaluating the effectiveness of combined therapy with rosuvastatin and ezetimibe for hypercholesterolemia...
July 11, 2017: Trials
https://www.readbyqxmd.com/read/28694219/hepatic-abca1-deficiency-is-associated-with-delayed-apolipoprotein-b-secretory-trafficking-and-augmented-vldl-triglyceride-secretion
#18
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 8, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28687934/co-administration-of-a-konjac-based-fibre-blend-and-american-ginseng-panax-quinquefolius-l-on-glycaemic-control-and-serum-lipids-in-type-2-diabetes-a-randomized-controlled-cross-over-clinical-trial
#19
Alexandra L Jenkins, Linda M Morgan, Jacqueline Bishop, Elena Jovanovski, David J A Jenkins, Vladimir Vuksan
PURPOSE: Use of polypharmacy in the treatment of diabetes is the norm; nonetheless, optimal control is often not achieved. Konjac-glucomannan-based fibre blend (KGB) and American ginseng (AG) have individually been shown to improve glycaemia and CVD risk factors in type 2 diabetes. The aim of this study was to determine whether co-administration of KGB and AG could improve diabetes control beyond conventional treatment. METHOD: Thirty-nine participants with type 2 diabetes (6...
July 7, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28680356/the-effect-of-early-substitution-of-subclinical-hypothyroidism-on-biochemical-blood-parameters-and-the-quality-of-life
#20
Milena S Pandrc, Anđelka Ristić, Vanja Kostovski, Marko Stanković, Vladimir Antić, Jelena Milin-Lazović, Jasmina Ćirić
BACKGROUND: Subclinical hypothyroidism (SCH) is defined as high TSH and normal thyroxine. Data on the effects of early substitution by levothyroxine on psychophysical health in SCH are still not consistent enough to support its introduction. METHODS: Clinical parameters, biochemical data and quality of life (Short Form 36 questionnaire) were measured before the intervention and 3 months after the euthyroid state had been achieved in SCH patients. RESULTS: Significant reduction in body weight (p=0...
April 2017: Journal of Medical Biochemistry
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