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Lipid cholesterol metabolism atherosclerosis

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https://www.readbyqxmd.com/read/29221940/pioglitazone-attenuates-aging-related-disorders-in-aged-apolipoprotein-e-deficient-mice
#1
Dan Shen, Hao Li, Rui Zhou, Meng-Jie Liu, Hong Yu, Dong-Fang Wu
Pioglitazone (Piog) activates peroxisome proliferator activated receptor-γ (PPARγ) and is widely used in clinic for the treatment of diabetes mellitus. PPARγ in various tissues has the essential regulatory role of multiple metabolic function, suggest that PPARγ signaling may contribute to aging processes. However, little is known about the consequences of Piog on aging in aged animal models. We used apolipoprotein E deficient (apoE-/-) mice model to evaluate the effects of Piog on aging-related disorders...
December 5, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/29218349/core-hydrophobicity-tuning-of-a-self-assembled-particle-results-in-efficient-lipid-reduction-and-favorable-organ-distribution
#2
Bhabatosh Banik, Ru Wen, Sean Marrache, Anil Kumar, Nagesh Kolishetti, Elizabeth W Howerth, Shanta Dhar
Atherosclerosis, the deadliest disease in the United States, arises due to the build up of plaques in the arteries as a result of excessive cholesterol deposition and an impaired cholesterol removal process. High density lipoproteins (HDL), popularly known as "good cholesterol", are naturally occurring nano-sized particles that, along with apolipoproteins, are deployed to maintain cholesterol homeostasis in the body. Both cholesterol efflux, from the fat-laden macrophages in the arteries, and intracellular lipid transport, to deliver cholesterol to the mitochondria of liver cells for metabolism, hold key responsibilities to maintain healthy lipid levels inside the body...
December 8, 2017: Nanoscale
https://www.readbyqxmd.com/read/29217920/correlation-between-serum-lipid-profile-with-anthropometric-and-clinical-variables-in-patients-with-type-2-diabetes-mellitus
#3
Belete Biadgo, Solomon Mekonnen Abebe, Habtamu Wondifraw Baynes, Mohammed Yesuf, Aynadis Alemu, Molla Abebe
Background: The problem of dyslipidemia is high in patients with diabetes mellitus. There is ample evidence that abnormalities in lipid metabolism are important risk factors for increased incidence of diabetes associated complications. The most important risk indicators for these complications are lipid profile abnormalities. Therefore, the aim of this study was to assess the correlation between serum lipid profile with anthropometric and clinical variables among type 2 diabetes mellitus patients...
May 2017: Ethiopian Journal of Health Sciences
https://www.readbyqxmd.com/read/29215758/plin5-deficiency-promotes-atherosclerosis-progression-through-accelerating-inflammation-apoptosis-and-oxidative-stress
#4
Peng-Li Zhou, Min Li, Xin-Wei Han, Yong-Hua Bi, Wen-Guang Zhang, Zheng-Yang Wu, Gang Wu
Excessive plasma triglyceride and cholesterol levels promote the progression of several prevalent cardiovascular risk factors, including atherosclerosis, which is a leading death cause. Perilipin 5 (Plin5), an important perilipin protein, is abundant in tissues with very active lipid catabolism, and is involved in the regulation of oxidative stress. Although, in?ammation and oxidative stress play a critical role in atherosclerosis development, the underlying mechanisms are complex and not completely understood...
December 7, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29203734/effect-of-pioglitazone-on-insulin-resistance-progression-of-atherosclerosis-and-clinical-course-of-coronary-heart-disease
#5
Olha V Skochko, Igor P Kaidashev
INTRODUCTION: Pioglitazone, a medication of thiazolidinedione group, is capable of triggering the peroxisome proliferator-activated receptors (PPAR-γ). Activation of receptor PPAR-γ regulates carbohydrate and lipid metabolism, immune and inflammatory responses in heart tissues. THE AIM: Our aim was to study the effect of pioglitazone on insulin resistance, the clinical course of atherosclerosis and coronary heart disease (CHD). MATERIALS AND METHODS: The study included 43 patients with coronary artery disease...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29199477/phenylpropanoid-glucosides-from-tadehagi-triquetrum-inhibit-oxldl-evoked-foam-cell-formation-through-modulating-cholesterol-homeostasis-in-raw264-7-macrophages
#6
Shuai Wang, Xiaopo Zhang, Xin Li, Qibing Liu, Yue Zhou, Peng Guo, Zhengqi Dong, Chongming Wu
The phenylpropanoid glucosides from Tadehagi triquetrum were found to be beneficial to glucose and lipid metabolism in vitro. Herein, we investigated the effects of these compounds on oxidised low-density lipoprotein (oxLDL)-induced foam cell formation in RAW264.7 macrophages, aiming to evaluate their potential utility in prevention of atherosclerosis. Our results showed that three out of seven phenylpropanoid glucosides significantly inhibited oxLDL-evoked foam cell formation. These three compounds remarkably inhibited cholesterol influx and enhanced cholesterol efflux...
December 4, 2017: Natural Product Research
https://www.readbyqxmd.com/read/29198934/novel-polymorphisms-associated-with-hyperalphalipoproteinemia-and-apparent-cardioprotection
#7
Connor P Oates, Darya Koenig, Jeffrey Rhyne, Nikolay Bogush, Jeffrey O'Connell, Braxton D Mitchell, Michael Miller
BACKGROUND: Hyperalphalipoproteinemia (HALP) is inversely correlated with coronary heart disease (CHD) although genetic variants associated with high serum levels of high-density lipoprotein cholesterol (HDL-C) have not been shown to be cardioprotective. OBJECTIVE: The objective of the study was to uncover novel genetic variants associated with HALP and possibly with reduced risk of CHD. METHODS: Exome sequencing data, HDL-C, and triglyceride levels were analyzed in 1645 subjects...
November 21, 2017: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/29190851/oxidized-low-density-lipoprotein-and-cell-adhesion-molecules-following-exercise-training
#8
Yunsuk Koh, Jin Park, Rick Carter
Elevated oxidized low-density lipoprotein (ox-LDL) and cell adhesion molecules are associated with inflammation and atherosclerosis. The role of exercise in circulating ox-LDL, enzyme mediators, and cell adhesion molecules are not clearly understood in obesity. As a randomized controlled design, 27 obese (BMI>30 kg/m2) sedentary men (N=13) and women (N=14) were randomly assigned to either an exercise (N=15) or a control (N=12) group. The exercise group performed a 60-min supervised treadmill exercise at moderate intensity (70% of HRmax) for 3 days per week for 4 weeks, while the control group did not exercise...
November 30, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29183708/posttranscriptional-regulation-of-lipid-metabolism-by-non-coding-rnas-and-rna-binding-proteins
#9
REVIEW
Abhishek K Singh, Binod Aryal, Xinbo Zhang, Yuhua Fan, Nathan Price, Yajaira Suárez, Carlos Fernández-Hernando
Alterations in lipoprotein metabolism enhance the risk of cardiometabolic disorders including type-2 diabetes and atherosclerosis, the leading cause of death in Western societies. While the transcriptional regulation of lipid metabolism has been well characterized, recent studies have uncovered the importance of microRNAs (miRNAs), long-non-coding RNAs (lncRNAs) and RNA binding proteins (RBP) in regulating the expression of lipid-related genes at the posttranscriptional level. Work from several groups has identified a number of miRNAs, including miR-33, miR-122 and miR-148a, that play a prominent role in controlling cholesterol homeostasis and lipoprotein metabolism...
November 25, 2017: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/29176657/dyslipidaemia-in-nephrotic-syndrome-mechanisms-and-treatment
#10
REVIEW
Shipra Agrawal, Joshua J Zaritsky, Alessia Fornoni, William E Smoyer
Nephrotic syndrome is a highly prevalent disease that is associated with high morbidity despite notable advances in its treatment. Many of the complications of nephrotic syndrome, including the increased risk of atherosclerosis and thromboembolism, can be linked to dysregulated lipid metabolism and dyslipidaemia. These abnormalities include elevated plasma levels of cholesterol, triglycerides and the apolipoprotein B-containing lipoproteins VLDL and IDL; decreased lipoprotein lipase activity in the endothelium, muscle and adipose tissues; decreased hepatic lipase activity; and increased levels of the enzyme PCSK9...
November 27, 2017: Nature Reviews. Nephrology
https://www.readbyqxmd.com/read/29172088/silencing-of-h19-inhibits-the-adipogenesis-and-inflammation-response-in-ox-ldl-treated-raw264-7-cells-by-up-regulating-mir-130b
#11
Yong Han, Jie Ma, Junping Wang, Liping Wang
Atherosclerosis (AS) is the main cause of cardiovascular diseases (CADs). Lipid accumulation and inflammatory response in macrophages are two key factors in the pathogenesis of AS. In this study, we aimed to explore the regulating role of long non-coding RNA (LncRNA)-H19 in oxygenized low density lipoprotein (ox-LDL)-treated Raw264.7 cells. Compared with the healthy control, a relatively higher level of H19 was detected in the blood samples from AS patients. Obviously up-regulated expression of TG (triglycerides)/TC (total cholesterol)/LDL-C (low density lipoprotein-cholesterol) and down-regulated level of HDL-C (high density lipoprotein-cholesterol) were detected in ox-LDL-treated Raw264...
November 21, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/29171874/serum-paraoxonase-1-activity-is-inversely-related-to-free-thyroxine-in-euthyroid-subjects-the-prevend-cohort-study
#12
Lynnda J N van Tienhoven-Wind, Eke G Gruppen, Richard W James, Stephan J L Bakker, Rijk O B Gans, Robin P F Dullaart
BACKGROUND: Low-normal thyroid function within the euthyroid range has been suggested to enhance atherosclerosis susceptibility. Paraoxonase-1 (PON-1), may protect against atherosclerotic cardiovascular disease development by attenuating oxidative stress. We evaluated relationships of PON-1 with TSH, free T4 , free T3 , lipids and apolipoprotein (apo)A-I in euthyroid subjects, and assessed whether such relationships are modified in the context of the metabolic syndrome (MetS). MATERIALS AND METHODS: Serum PON-1 activity (arylesterase activity), TSH, free T4 , free T3 , lipids and apoA-I were measured in 2206 euthyroid subjects (aged 28 to75 years; 1138 men (age 49 ± 13 years) and 1068 women (age 46 ± 12 years), recruited from the general population (PREVEND cohort)...
November 24, 2017: European Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29159396/association-of-nonalcoholic-fatty-liver-disease-with-lower-brain-volume-in-healthy-middle-aged-adults-in-the-framingham-study
#13
Galit Weinstein, Shira Zelber-Sagi, Sarah R Preis, Alexa S Beiser, Charles DeCarli, Elizabeth K Speliotes, Claudia L Satizabal, Ramachandran S Vasan, Sudha Seshadri
Importance: Nonalcoholic fatty liver disease (NAFLD) is a common condition that is most often asymptomatic. It is associated with metabolic syndrome, incident diabetes, carotid atherosclerosis, and endothelial dysfunction, conditions that in turn are strongly linked with brain damage and cognitive impairment. However, it is not known whether NAFLD is associated with structural brain measures in humans. Objective: To assess the association between prevalent NAFLD and brain magnetic resonance imaging (MRI) measures...
November 20, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/29155735/quantification-of-monocyte-transmigration-and-foam-cell-formation-from-individuals-with-chronic-inflammatory-conditions
#14
Thomas A Angelovich, Anna C Hearps, Anna Maisa, Theodoros Kelesidis, Anthony Jaworowski
Coronary artery disease (CAD) is a leading cause of morbidity and mortality worldwide. Atherosclerosis, a leading cause of CAD, is initiated by the transmigration of innate immune monocytes to inflammatory sites of deposited lipid called fatty streaks, which are present in arterial walls of medium to large arteries. The key pathogenic feature of lesions at this early stage of atherosclerosis is the maturation of monocytes which migrate into arteries to form foam cells or lipid-laden macrophages. Considerable evidence supports the hypothesis that risk of atherosclerosis is increased by chronic inflammatory conditions accompanying diseases such as rheumatoid arthritis and HIV, as well as general ageing, and that this risk is predicted by monocyte activation...
October 17, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29154726/comparison-of-apolipoprotein-apob-apoa-1-and-lipoprotein-total-cholesterol-hdl-ratios-in-obese-adolescents
#15
Ramin Alemzadeh, Jessica Kichler
BACKGROUND: Serum (ApoB/ApoA-1) ratio is considered a stronger predictor of systemic inflammation and atherosclerosis than serum total cholesterol/HDL (TC/HDL) ratio among adults. We evaluated the relationships between ApoB/ApoA-1 and TC/HDL ratios with surrogate markers of inflammation and insulin resistance (IR) among obese adolescents. METHODS: Body mass index z-score (BMI-z), body composition, fasting glucose, insulin, lipids, high-sensitive c-reactive protein (hs-CRP), hemoglobin A1c (HbA1c), and homeostatic model assessment for insulin resistance (HOMA-IR) were evaluated in 143 obese adolescents...
November 20, 2017: Metabolic Syndrome and related Disorders
https://www.readbyqxmd.com/read/29144234/lrp1-integrates-murine-macrophage-cholesterol-homeostasis-and-inflammatory-responses-in-atherosclerosis
#16
Xunde Xian, Yinyuan Ding, Marco Dieckmann, Li Zhou, Florian Plattner, Mingxia Liu, John S Parks, Robert E Hammer, Philippe Boucher, Shirling Tsai, Joachim Herz
Low-density lipoprotein receptor-related protein 1 (LRP1) is a multifunctional cell surface receptor with diverse physiological roles, ranging from cellular uptake of lipoproteins and other cargo by endocytosis to sensor of the extracellular environment and integrator of a wide range of signaling mechanisms. As a chylomicron remnant receptor, LRP1 controls systemic lipid metabolism in concert with the LDL receptor in the liver, whereas in smooth muscle cells (SMC) LRP1 functions as a co-receptor for TGFβ and PDGFRβ in reverse cholesterol transport and the maintenance of vascular wall integrity...
November 16, 2017: ELife
https://www.readbyqxmd.com/read/29137283/c1q-tumor-necrosis-factor-related-protein-3-protects-macrophages-against-lps-induced-lipid-accumulation-inflammation-and-phenotype-transition-via-ppar%C3%AE-and-tlr4-mediated-pathways
#17
Jiale Lin, Qi Liu, Hui Zhang, Xingtao Huang, Ruoxi Zhang, Shuyuan Chen, Xuedong Wang, Bo Yu, Jingbo Hou
Macrophage inflammation and foam cell formation are critical events during the initiation and development of atherosclerosis (AS). C1q/tumor necrosis factor-related protein-3 (CTRP3) is a novel adipokine with anti-inflammatory and cardioprotection properties; however, little is known regarding the influence of CTRP3 on AS. As macrophages play a key role in AS, this study investigated the effects of CTRP3 on macrophage lipid metabolism, inflammatory reactions, and phenotype transition, as well as underlying mechanisms, to reveal the relationship between CTRP3 and AS...
October 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29135690/microbiota-and-hdl-metabolism
#18
Kazuhiro Nakaya, Katsunori Ikewaki
PURPOSE OF REVIEW: Accumulating evidence has provided new insights regarding potentially effective therapeutic options targeting modulation of HDL metabolism, resulting in the prevention of cardiovascular diseases. The gut microbiota has now been convincingly linked to host health, but its impact on host lipid metabolism, especially HDL metabolism, remains poorly understood. This review focuses on the recent progress in establishing associations between gut microbiota and host HDL metabolism...
November 11, 2017: Current Opinion in Lipidology
https://www.readbyqxmd.com/read/29123578/the-role-of-adhesion-molecules-in-inflammatory-bowel-disease-in-children-assessment-of-the-possible-risk-of-cardiovascular-complications
#19
Aneta Trzeciak-Jędrzejczyk, Ryszard Makosiej, Michał Kolejwa, Ewa Głowacka, Elżbieta Czkwianianc
Introduction: Inflammatory bowel diseases (IBD) are chronic diseases that proceed with exacerbation and remission phases. Adhesion molecules play a significant role in inflammatory processes. The same adhesion molecules play an important role in atherogenesis. Aim: To assess the risk of atherosclerosis in IBD in children. Material and methods: The study included 40 patients with IBD (25 with Crohn's disease - CD and 15 with ulcerative colitis - UC) aged 4-17 years...
2017: Przegla̜d Gastroenterologiczny
https://www.readbyqxmd.com/read/29122890/microrna-30c-reduces-plasma-cholesterol-in-homozygous-familial-hypercholesterolemic-and-type-2-diabetic-mouse-models
#20
Sara Irani, Jahangir Iqbal, W James Antoni, Laraib Ijaz, M Mahmood Hussain
High plasma cholesterol levels are found in several metabolic disorders and their reductions are advocated to reduce risk of atherosclerosis. A way to lower plasma lipids is to curtail lipoprotein production; however, this is associated with steatosis. We previously showed that microRNA-30c (miR-30c) lowers diet-induced hypercholesterolemia and atherosclerosis in C57BL/6J and Apoe-/- mice. Here, we tested miR-30c effect on plasma lipids, transaminases and hepatic lipids in different mouse models. Hepatic delivery of miR-30c to chow fed leptin deficient (ob/ob) and leptin receptor deficient (db/db) hypercholesterolemic and hyperglycemic mice reduced cholesterol in total plasma and VLDL/LDL by ~28% and ~25%, respectively, without affecting triglyceride and glucose levels...
November 9, 2017: Journal of Lipid Research
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