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Lipoprotein(a)

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https://www.readbyqxmd.com/read/29151034/efficacy-and-safety-of-adding-ezetimibe-to-statin-therapy-among-women-and-men-insight-from-improve-it-improved-reduction-of-outcomes-vytorin-efficacy-international-trial
#1
Eri Toda Kato, Christopher P Cannon, Michael A Blazing, Erin Bohula, Sema Guneri, Jennifer A White, Sabina A Murphy, Jeong-Gun Park, Eugene Braunwald, Robert P Giugliano
BACKGROUND: IMPROVE-IT (Improved Reduction of Outcomes: Vytorin Efficacy International Trial) showed that adding the nonstatin ezetimibe to statin therapy further reduced cardiovascular events in patients after an acute coronary syndrome. In a prespecified analysis, we explore results stratified by sex. METHODS AND RESULTS: In IMPROVE-IT, patients with acute coronary syndrome and low-density lipoprotein cholesterol of 50 to 125 mg/dL were randomized to placebo/simvastatin 40 mg or ezetimibe/simvastatin 10/40 mg...
November 18, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29151033/induction-of-dendritic-cell-mediated-activation-of-t-cells-from-atherosclerotic-plaques-by-human-heat-shock-protein-60
#2
Mizanur Rahman, Johnny Steuer, Peter Gillgren, Assim Hayderi, Anquan Liu, Johan Frostegård
BACKGROUND: Atherosclerosis is characterized by the presence of activated immune-competent cells including dendritic cells (DCs) and T cells, dead cells, and oxidized low-density lipoprotein. HSP60 (Heat shock protein 60) has been implicated in atherosclerosis. A plasma protein, Annexin A5, has atheroprotective properties. METHODS AND RESULTS: Human DCs differentiated from peripheral blood monocytes were treated with human HSP60 or HSP90 and autologous T cells were cocultured with these pretreated DCs (mDCs)...
November 18, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29150990/prevalence-of-dry-eye-disease-and-its-association-with-dyslipidemia
#3
Krishnamoorthy Rathnakumar, Kaliaperumal Ramachandran, Durairaj Baba, Venkatachalam Ramesh, Velusamy Anebaracy, Ramachandran Vidhya, Rajamanickam Vinothkumar, Ramamurthy Poovitha, Rajagopalan Geetha
BACKGROUND: Dry eye disease (DED) is a common ocular surface disease significantly affecting the quality of life of patients. The aim of our study is to focus on the prevalence of DED and to determine the relationship between dyslipidemia and DED. METHODS: The study was performed with the age group of 25-70 years, who attended the ophthalmology outpatient department at Sri Lakshmi Narayana Institute of Medical Sciences with complaints of dry eye. A standard questionnaire was taken, and tear film tests were performed to diagnose dry eye...
November 18, 2017: Journal of Basic and Clinical Physiology and Pharmacology
https://www.readbyqxmd.com/read/29150932/high-fat-diet-induced-oxidative-stress-blocks-hepatocyte-nuclear-factor-4%C3%AE-and-leads-to-hepatic-steatosis-in-mice
#4
Dongsheng Yu, Gang Chen, Minglin Pan, Jia Zhang, Wenping He, Yang Liu, Xue Nian, Liang Sheng, Bin Xu
Nonalcoholic fatty liver disease (NAFLD) is the most common form of chronic liver disease with manifestation of over-accumulation of fat in liver. Increasing evidences indicate that NAFLD may be in part caused by malfunction of very low density lipoprotein (VLDL) secretion. Hepatocyte nuclear factor 4α (HNF4α), a nuclear receptor protein, plays an important role in sustain hepatic lipid homeostasis via transcriptional regulation of genes involved in secretion of VLDL, such as apolipoprotein B (ApoB). However, the exact functional change of HNF4α in NAFLD remains to be elucidated...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150535/disparities-in-management-of-cardiovascular-disease-in-rural-south-africa-data-from-the-haalsi-study-health-and-aging-in-africa-longitudinal-studies-of-international-network-for-the-demographic-evaluation-of-populations-and-their-health-communities
#5
Thiago Veiga Jardim, Sheridan Reiger, Shafika Abrahams-Gessel, Nigel J Crowther, Alisha Wade, F Xavier Gómez-Olivé, Joshua Salomon, Stephen Tollman, Thomas A Gaziano
BACKGROUND: Optimal secondary prevention is critical for the reduction of repeated cardiovascular events, and the control of cardiovascular risk factors in this context is essential. Data on secondary prevention of cardiovascular disease (CVD) in sub-Saharan Africa are needed to inform intervention strategies with a particular focus on local disparities. The aim of this study was to assess CVD management in a rural community in northeast South Africa. METHODS AND RESULTS: We recruited adults aged ≥40 years residing in the Agincourt subdistrict of Mpumalanga province...
November 2017: Circulation. Cardiovascular Quality and Outcomes
https://www.readbyqxmd.com/read/29150495/small-dense-high-density-lipoproteins-display-potent-vasorelaxing-activity-reflecting-their-elevated-content-of-sphingosine-1-phosphate
#6
Laurence Persegol, Maryam Darabi, Carolane Dauteuille, Marie Lhomme, Sandrine Chantepie, Kerry-Anne Rye, Patrice Therond, M John Chapman, Robert Salvayre, Anne Negre-Salvayre, Philippe Lesnik, Serge Monier, Anatol Kontush
AIMS: Functional heterogeneity of HDL is attributed to its diverse bioactive components. We evaluated whether vasodilatory effects of HDL differed across HDL subpopulations, reflecting their distinct molecular composition. METHODS: Capacity of five major HDL subfractions to counteract inhibitory effects of oxidized low-density lipoprotein on acetylcholine-induced vasodilation was tested in a rabbit aortic rings model. Nitric oxide (NO) production, an essential pathway in endothelium-dependent vasorelaxation, was studied in SV40-transformed murine endothelial cells (SVEC)...
November 17, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/29150341/increased-prevalence-of-clinical-and-subclinical-atherosclerosis-in-patients-with-damaging-mutations-in-abca1-or-apoa1
#7
Omar Abdel-Razek, Singh N Sadananda, Xuan Li, Lubomira Cermakova, Jiri Frohlich, Liam R Brunham
BACKGROUND: A low level of high-density lipoprotein cholesterol (HDL-C) is a common clinical scenario and poses challenges for management. Many patients with low HDL-C harbor a damaging mutation in ABCA1 or APOA1, but the clinical implications of genetic testing for these mutations are unclear. OBJECTIVE: The purpose of this study was to investigate the prevalence of clinical or subclinical atherosclerosis among patients with low HDL-C due to a mutation in ABCA1 or APOA1, compared with patients with low HDL-C without such a mutation...
November 10, 2017: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/29150224/reduced-gene-expression-of-sirtuins-and-active-ampk-levels-in-children-and-adolescents-with-obesity-and-insulin-resistance
#8
Zahra Arab Sadeghabadi, Mitra Nourbakhsh, Parvin Pasalar, Solaleh Emamgholipour, Abolfazl Golestani, Bagher Larijani, Maryam Razzaghy-Azar
BACKGROUND: Sirtuins, including SIRT1 and SIRT2, are longevity-associated deacetylase enzymes that modulate metabolic homeostasis in response to the cellular energy state. Adenosine monophosphate activated protein kinase (AMPK) and SIRT1 are interrelated and share several common target pathways. This study aimed to evaluate the SIRT1 and SIRT2 gene expression in peripheral blood mononuclear cells (PBMCs) as well as plasma levels of AMPK, in obese children and adolescents. MATERIALS AND METHODS: Participants included 60 children and adolescents (30 obese and 30 age- and gender-matched control subjects)...
November 14, 2017: Obesity Research & Clinical Practice
https://www.readbyqxmd.com/read/29149817/high-density-lipoprotein-hdl-dysfunction-and-future-of-hdl
#9
Sibel Ertek
Although high density lipoprotein cholesterol (HDL-C) levels are inversely proportional to cardiovascular risk in many studies, recent pharmacological interventional studies with HDL-C raising strategies did not show a benefit in terms of vascular events. The HDL particle is heterogenous with anti-atherogenic functions and non-vascular effects. Many factors affect HDL components and may either cause compositional changes, post-translational modifications of proteins, or alter lipids and other cargo molecules; generally these factors cause more than one of these changes, resulting in functional differences...
November 16, 2017: Current Vascular Pharmacology
https://www.readbyqxmd.com/read/29149816/maternal-dyslipidaemia-in-pregnancy-with-gestational-diabetes-mellitus-possible-impact-in-the-foetoplacental-vascular-function-and-the-lipoprotein-in-the-neonatal-circulation
#10
Susana Contreras-Duarte, Lorena Carvajal, Barbara Fuenzalida, Claudette Cantin, Luis Sobrevia, Andrea Leiva
Dyslipidaemia occurs in pregnancy to secure foetal development. The mother shows a physiological increase in plasma total cholesterol and triglycerides (TG) as pregnancy progresses (i.e. maternal physiological dyslipidaemia in pregnancy). However, in some women pregnancy-associated dyslipidaemia exceeds this physiological adaptation. The consequences of this condition on the developing foetus include endothelial dysfunction of the foetoplacental vasculature and development of foetal aortic atherosclerosis. Gestational diabetes mellitus (GDM) associates with abnormal function of the foetoplacental vasculature due to foetal hyperglycaemia and hyperinsulinaemia, and associates with development of cardiovascular disease in adulthood...
November 16, 2017: Current Vascular Pharmacology
https://www.readbyqxmd.com/read/29148894/metabolic-profile-in-patients-with-mild-obstructive-sleep-apnea
#11
Luciana Oliveira E Silva, Thais M Guimarães, Gabriela P Luz, Glaury Coelho, Luciana Badke, Ildonete R Almeida, Aline Millani-Carneiro, Sergio Tufik, Lia Bittencourt, Sonia M Togeiro
BACKGROUND: Mild obstructive sleep apnea (OSA) is a highly prevalent disorder in adults. However, it is not clear whether mild OSA has significant metabolic complications. This study examined the prevalence of metabolic syndrome (MS) in patients with mild OSA compared to control group. METHODS: Adults (18-65 years of age) of both genders with a body mass index (BMI) ≤35 kg/m(2) were included. The mild OSA group comprised of patients with an apnea-hypopnea index (AHI) score of ≥5 but ≤15 events/hr of sleep, independent of other symptoms...
November 17, 2017: Metabolic Syndrome and related Disorders
https://www.readbyqxmd.com/read/29148854/comparative-effectiveness-of-lipid-lowering-treatments-to-reduce-cardiovascular-disease
#12
Dong-Churl Suh, Scott K Griggs, Emmett R Henderson, Seung-Mi Lee, Taehwan Park
With the advent of a new drug class - the proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitors, patients have another treatment option for lowering their high levels of low-density lipoprotein cholesterol (LDL-C) in recent years. The objective of this study was to systematically review the cost-effectiveness of lipid-lowering agents such as statins, ezetimibe, and PCSK9 inhibitors. Areas covered: Based on PubMed, Embase, and Cochrane Database of Systematic Reviews, we identified a total of 29 relevant articles...
November 17, 2017: Expert Review of Pharmacoeconomics & Outcomes Research
https://www.readbyqxmd.com/read/29148344/moderating-effects-of-patient-characteristics-on-the-impact-of-financial-incentives
#13
Meredith B Rosenthal, Andrea B Troxel, Kevin G Volpp, Walter F Stewart, Thomas D Sequist, James B Jones, AnneMarie G Hirsch, Karen Hoffer, Jingsan Zhu, Wenli Wang, Amanda Hodlofski, Darra Finnerty, Jack J Huang, David A Asch
While financial incentives to providers or patients are increasingly common as a quality improvement strategy, their impact on patient subgroups and health care disparities is unclear. To examine these patterns, we analyzed data from a randomized clinical trial of financial incentives to lower low-density lipoprotein (LDL) cholesterol levels in patients at risk for cardiovascular disease. Patients with higher baseline LDL experienced greater cholesterol reductions in the shared incentive arm (0.23 mg/dL per unit change in baseline LDL, 95% CI [-0...
May 1, 2017: Medical Care Research and Review: MCRR
https://www.readbyqxmd.com/read/29148099/circulating-pcsk9-is-lowered-acutely-following-surgery
#14
Irena Druce, Hussein Abujrad, Seham Chaker, Hilary Meggison, Andrew Hill, Angela Raymond, Janice Mayne, Teik Chye Ooi
BACKGROUND: A decrease in serum low-density lipoprotein cholesterol (LDL-C) is well documented after acute stress. Plasma proprotein convertase subtilisin kexin 9 (PCSK9), which promotes degradation of low-density lipoprotein receptor (LDL-R) resulting in reduced plasma clearance of low-density lipoproteins (LDL) and an increase in serum LDL-C, would be predicted to decrease. Yet, a few studies have demonstrated an increase 1-8 days after acute stress. Our objective was to assess the earlier status of plasma PCSK9, within the first 24 hours of onset of stress...
November 17, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/29147968/effects-of-fasting-on-the-activities-and-mrna-expression-levels-of-lipoprotein-lipase-lpl-hormone-sensitive-lipase-hsl-and-fatty-acid-synthetase-fas-in-spotted-seabass-lateolabrax-maculatus
#15
Hongli Huang, Yu Zhang, Mingyue Cao, Liangyi Xue, Weiliang Shen
To investigate the effects of fasting on lipid metabolism in spotted seabass muscle and liver tissues, we analyzed mRNA levels and enzyme activities of lipoprotein lipase (LPL), hormone-sensitive lipase (HSL) and fatty acid synthetase (FAS), and the relationship among fat content, mRNA level, and enzyme activity during fasting of 35 days. The results showed that expressions of all the three genes were ubiquitous. During the fasting experiment, the hepatosomatic index (HSI) and fat content of muscle and liver tissues significantly decreased before 5 days of fasting (P < 0...
November 16, 2017: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/29147957/mobilization-of-endothelial-progenitor-cell-in-patients-with-acute-ischemic-stroke
#16
Yushuang Deng, Jian Wang, Guiqiong He, Fei Qu, Min Zheng
Endothelial progenitor cells (EPCs) have important effect in tissue repair in ischemic organs. The present study was conducted to demonstrate the mobilization of EPCs and its possible mechanism after acute ischemic stroke (AIS). A total of 148 individuals were examined, including 106 patients with ischemic stroke and 42 healthy controls. Seventy-one patients with imaging-confirmed AIS were examined at days 1, 7, 14, and 21 after stroke onset. Circulating EPCs were quantified by flow cytometry using CD133 and KDR surface markers...
November 16, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/29147686/lipoprotein-a-associated-molecules-are-prominent-components-in-plasma-and-valve-leaflets-in-calcific-aortic-valve-stenosis
#17
Michael Torzewski, Amir Ravandi, Calvin Yeang, Andrea Edel, Rahul Bhindi, Stefan Kath, Laura Twardowski, Jens Schmid, Xiaohong Yang, Ulrich F W Franke, Joseph L Witztum, Sotirios Tsimikas
The LPA gene is the only monogenetic risk factor for calcific aortic valve stenosis (CAVS). Oxidized phospholipids (OxPL) and lysophosphatidic acid generated by autotaxin (ATX) from OxPL are pro-inflammatory. Aortic valve leaflets were categorized pathologically from Both ATX-apoB and ATX-apo(a) were measureable in plasma. Lp(a), autotaxin, OxPL and MDA epitopes progressively increased in immunostaining (p<0.001 for all). Six species of OxPL and LysoPA were identified following extraction from valve leaflets...
June 2017: JACC. Basic to Translational Science
https://www.readbyqxmd.com/read/29147490/hypolipidemic-effects-of-total-flavonoide-extracted-from-the-leaves-of-actinidiakolomikta-in-rats-fed-a-high-fat-diet
#18
Zhenxiang Yu, Huali Xu, Xiaofeng Yu, Dayun Sui, Guangzhu Lin
Objectives: This study was to investigate the antihyperlipidemic and antioxidant effect of total flavonoid extract from Actinidiakolomikta (TFAK) in hyperlipidemia induced by a high-fat diet. Materials and Methods: Male SD rats were randomly divided into 6 groups: normal group, model (hyperlipidemic diet) group, hyperlipedemic diet supplemented with TFAK (50, 100 and 200 mg/kg) and simvastatin (30 mg/kg) groups. The rats were administrated TFAK by oral for 28 days...
October 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/29147443/4-nitroquinoline-1-oxide-induced-tongue-and-esophagus-carcinogenesis-in-obese-and-diabetic-tsod-mice
#19
Takuji Tanaka, Kunihiro Kawabata, Shigeyuki Sugie
Background: Obesity and diabetes mellitus are associated with lifestyle-related carcinogenesis. They are also risk factors of esophageal adenocarcinoma, but there are only a few reports on association between obesity/diabetes and development of squamous cell carcinoma in the oral cavity and esophagus. In this study, we therefore aimed to determine whether obesity and diabetes affect oral and esophageal carcinogenesis using model mice of obesity and diabetes, the Tsumura Suzuki obese diabetes (TSOD) and Tsumura Suzuki non-obesity (TSNO) control mice, which were treated with 4-nitroquinoline 1-oxide (4-NQO) to produce tongue and esophageal carcinomas...
August 2017: World Journal of Oncology
https://www.readbyqxmd.com/read/29147129/the-effect-of-exercise-training-on-upregulation-of-molecular-markers-of-bile-acid-metabolism-in-the-liver-of-ovariectomized-rats-fed-a-cholesterol-rich-diet
#20
Zahra Farahnak, Luciane Magri Tomaz, Raynald Bergeron, Natalie Chapados, Jean-Marc Lavoie
BACKGROUND: Small heterodimer partner (SHP) is an important transcriptional factor involved in the regulation of glucose, lipid, and bile acid metabolism in the liver. SHP has been reported to be down-regulated in ovariectomized (Ovx) mice and up-regulated by estrogens suggesting a link between estrogens and SHP. The aim of the present study was to determine the effects of exercise training on SHP and key molecular markers of cholesterol and bile acid homeostasis in Ovx rats under cholesterol feeding...
July 2017: ARYA Atherosclerosis
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