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Lp-PLA2

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https://www.readbyqxmd.com/read/29138849/elevated-serum-levels-of-lipoprotein%C3%A2-associated-phospholipase%C3%A2-a2-predict-mortality-rates-in-patients-with-sepsis
#1
Zhongwei Huang, Haiyan Jiang, Xiaohui Cui, Guiwen Liang, Yu Chen, Ting Wang, Zhichao Sun, Lei Qi
Sepsis remains one of the leading contributors to mortality rates in the intensive care unit (ICU) and emergency intensive care unit (EICU). Therefore, any treatments against the agents which produce sepsis in a medical emergency, are welcome. Elevated serum levels of lipoprotein‑associated phospholipase A2 (Lp‑PLA2) have been reported in a small cohort of patients with inflammation. The present study evaluated serum levels of Lp‑PLA2 in patients with sepsis and investigated the role of Lp‑PLA2 in sepsis...
November 13, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29135482/long-term-darapladib-use-does-not-affect-coronary-plaque-composition-assessed-using-multimodality-intravascular-imaging-modalities-a-randomized-controlled-study
#2
Woong Gil Choi, Megha Prasad, Ryan Lennon, Rajiv Gulati, Abhiram Prasad, Lilach O Lerman, Amir Lerman
BACKGROUND: Lipoprotein-associated phospholipase A2 (Lp-PLA2) may play a role in plaque progression and vulnerability. We aimed to define plaque characteristics on multimodality intravascular imaging in patients with coronary endothelial dysfunction in response to long-term inhibition of Lp-PLA2 by darapladib. PATIENTS AND METHODS: This is a double-blinded, randomized study screening 70 patients, and enrolling 54 patients with suspected ischemia, without obstructive disease on angiography and with coronary endothelial dysfunction by invasive assessment...
November 10, 2017: Coronary Artery Disease
https://www.readbyqxmd.com/read/29121808/the-prognostic-value-of-lipoprotein-associated-phospholipase-a2-in-the-long-term-care-of-patients-with-acute-coronary-syndrome-undergoing-percutaneous-coronary-intervention
#3
Lijiao Yang, Hong Wang, Yida Zhang, Tingting Han, Wenfeng Wang
Lipoprotein-associated phospholipase A2 (Lp-PLA2) is an independent risk factor for cardiovascular disease. Accordingly, studies from many countries around the world have shown an association between Lp-PLA2 and cardiovascular events in patients with acute coronary syndrome (ACS) undergoing percutaneous coronary intervention (PCI), but this association has not been documented among the Chinese. The aim of this study was to assess the use of Lp-PLA2 as a useful marker for predicting the long-term prognosis of Chinese patients with ACS undergoing PCI...
January 1, 2017: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/29101839/community-based-statins-and-advanced-carotid-plaque-role-of-cd163-positive-macrophages-in-lipoprotein-associated-phospholipase-a2-activity-in-atherosclerotic-plaque
#4
Fumiyuki Otsuka, XiaoQing Zhao, Hugh H Trout, Ye Qiao, Bruce A Wasserman, Masataka Nakano, Colin H Macphee, Martin Brandt, Sue Krug-Gourley, Liang Guo, Elena R Ladich, Qi Cheng, Harry R Davis, Aloke V Finn, Renu Virmani, Frank D Kolodgie
BACKGROUND AND AIMS: Lipoprotein-associated phospholipase A2 (Lp-PLA2), an enzymatic inflammatory biomarker primarily bound to low-density lipoprotein cholesterol, is associated with an approximate twofold increased risk of cardiovascular disease and stroke. Despite indications that circulating Lp-PLA2 is sensitive to statins, it remains largely unknown whether statin usage exerts local effects on Lp-PLA2 expression at the site of atheromatous plaque. METHODS: Carotid plaques (n = 38) were prospectively collected from symptomatic (n = 18) and asymptomatic (n = 20) patients with (n = 20) or without (n = 18) documented statin history...
October 14, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/29051098/impact-of-tyrosine-nitration-at-positions-tyr307-and-tyr335-on-structural-dynamics-of-lipoprotein-associated-phospholipase-a2-a-therapeutically-important-cardiovascular-biomarker-for-atherosclerosis
#5
Arun Bahadur Gurung, Atanu Bhattacharjee
Protein tyrosine nitration (PTN) is a post translational event which results in the generation of 3-Nitrotyrosine (3-NT). High levels of 3-NT were reported in several human diseases such as Parkinson's disease, Alzheimer's disease, amylotrophic lateral sclerosis and coronary artery disease. It was reported that PTN at positions 307 and 335 of Lipoprotein-associated phospholipase A2 (Lp-PLA2) curtails its enzymatic activity but the mechanism of inhibition at the structure level is still incomprehensible. The present study is an in silico endeavor to understand nitrative stress induced structural changes in Lp-PLA2...
October 16, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29027597/lipoprotein-associated-phospholipase-a2-activity-in-obese-adolescents-with-and-without-type-2-diabetes
#6
Julia Seyfarth, Thomas Reinehr, Annika Hoyer, Christina Reinauer, Christina Bächle, Beate Karges, Ertan Mayatepek, Michael Roden, Sabine E Hofer, Susanna Wiegand, Joachim Woelfle, Wieland Kiess, Joachim Rosenbauer, Reinhard W Holl, Thomas Meissner
Lipoprotein-associated phospholipase A2 (Lp-PLA2) was identified as a strong predictor for cardiovascular events. Furthermore, it is highly associated with obesity. The role of Lp-PLA2 in diabetes mellitus is controversial and analyses, especially in adolescents with type 2 diabetes (T2D), are missing. Therefore, we compared Lp-PLA2 activity between two obese age-, sex-, and BMI-matched cohorts of adolescents with and without T2D. Relationships between Lp-PLA2 activity and age, BMI, hemoglobin A1c, lipids, and adipokines were evaluated...
October 13, 2017: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/28960681/association-of-lp-pla2-g994t-gene-polymorphism-with-risk-of-ischemic-stroke-in-chinese-population
#7
Jing Ni, Hong Gu, Wuhao Hu, Fang Zhou, Xue Zhu, Ke Wang
The association between lipoprotein-associated phospholipase A2 (Lp-PLA2) G994T gene polymorphism and the risk of ischemic stroke is unclear. The aim of this study is to investigate the influence of Lp-PLA2 G994T genetic variant on the pathogenesis of ischemic stroke in Chinese population. A total of 348 patients with a clinical diagnosis of ischemic stroke and 260 gender-matched control subjects under physical examination were recruited from hospitals and genotyped for G994T gene polymorphism. The results showed that there was a significant difference in the genotype distribution between the two groups and people with GT or TT genotype were associated with the higher risk of ischemic stroke even after adjusting the effects of potential confounding factors...
September 28, 2017: Journal of Biochemical and Molecular Toxicology
https://www.readbyqxmd.com/read/28951620/lipoprotein-associated-phospholipase-a2-is-associated-with-risk-of-mild-cognitive-impairment-in-chinese-patients-with-type-2-diabetes
#8
Rongrong Cai, Rong Huang, Jing Han, Haixia Sun, Jie Sun, Wenqing Xia, Sai Tian, Xue Dong, Yanjue Shen, Shaohua Wang
Type 2 diabetes mellitus (T2DM) is a low-grade chronic inflammatory diseases, which have been implicated in the pathogenesis of cognitive decline. We aim to evaluate associations between inflammatory markers and the risk of mild cognitive impairment (MCI) in T2DM. This study of 140 diabetic patients involved 71 with MCI and 69 controls. Clinical parameters, neuropsychological tests, high sensitivity C reactive protein (hsCRP), interleukin-6 (IL-6), lipoprotein-associated Phospholipase A2 (Lp-PLA2) mass and activity were measured...
September 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28934604/prognostic-value-of-lipoprotein-associated-phospholipase-a2-mass-for-all-cause-mortality-and-vascular-events-within-one-year-after-acute-ischemic-stroke
#9
Liyuan Han, Chongke Zhong, Xiaoqing Bu, Tan Xu, Aili Wang, Yanbo Peng, Tian Xu, Jinchao Wang, Hao Peng, Qunwei Li, Zhong Ju, Deqing Geng, Yonghong Zhang, Jiang He
BACKGROUND AND AIMS: We performed a prospective investigation of the longer-term prognostic value of lipoprotein-associated phospholipase A2 (Lp-PLA2) mass for all-cause mortality and vascular events within one year after acute ischemic stroke. METHODS: We examined the Lp-PLA2 mass among 3401 participants enrolled in the China Antihypertensive Trial in Acute Ischemic Stroke. The primary outcome was all-cause mortality. Cox proportional hazard ratios (HRs) and 95% confidence intervals (95% CIs) were constructed to assess the independent associations between the baseline Lp-PLA2 mass and the outcomes after adjustment for variables in models 1, 2, and 3 [further adjusted for low-density lipoprotein cholesterol (LDL-C)]...
November 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28930079/epicardial-adipose-tissue-volume-and-cardiovascular-risk-indices-among-asymptomatic-women-with-and-without-hiv
#10
Suman Srinivasa, Michael T Lu, Kathleen V Fitch, Travis R Hallett, Timothy K O'Malley, Lauren A Stone, Amanda Martin, Alexandra J Coromilas, Tricia H Burdo, Virginia A Triant, Janet Lo, Sara E Looby, Tomas G Neilan, Markella V Zanni
BACKGROUND: Mechanisms underlying the heightened myocardial infarction risk among HIV-infected women (versus non-HIV-infected women) remain unclear. Our objectives were to assess epicardial adipose tissue (EAT) volume and its associations among asymptomatic women with and without HIV. METHODS: Fifty-five HIV-infected and 27 non-HIV-infected women without known cardiovascular disease who underwent cardiac CT and metabolic/immune phenotyping were included. EAT volume derived from CT was compared among women with and without HIV, and within-group EAT associations were assessed...
September 20, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28917588/association-between-fsp-cvhi-inflammatory-cytokines-and-the-incidence-of-primary-stroke
#11
Xiao-Yun Huang, Wen-Jin Fu, Zhi-Chang Chen, Zhi-Zhong Mei, Ying-Li Yu, Hao-Wei Fang, Yi-Hong Huang, Han Lin, Jian-Jun Chen, Ming-Xia Wang, Shao-Bing Guan, Wan-Xian Lu, Xiao-Ling Chen
This case-control study was designed to establish a new risk-prediction model for primary stroke using Framingham stroke profile (FSP), cerebral vascular hemodynamic indexes (CVHI) and plasma inflammatory cytokines including hs-CRP, IL-6, TNF-α and Lp-PLA2. A total of 101 primary stroke patients admitted to Dongguan Houjie Hospital between August 2014 and June 2015 were assigned into the case group, and 156 age- and gender-matched healthy subjects from the Houjie Community were allocated into the control group...
November 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28900364/performance-characteristics-of-lipoprotein-associated-phospholipase-a2-activity-assay-on-the-dimension-vista-analyser-and-preliminary-study-of-a-healthy-italian-population
#12
Alessandro De Stefano, Liliana Mannucci, Renato Massoud, Sergio Bernardini, Claudio Cortese
INTRODUCTION: Lipoprotein-associated phospholipase A2 (Lp-PLA2) is a marker of vascular inflammation associated with coronary heart disease and stroke. We evaluated analytical performance of the PLAC® Activity Test on Siemens Dimension Vista® 1500 analyzer and measured Lp-PLA2 activity in Italian adults to establish reference intervals (RIs) and evaluate correlation with circulating lipids and age. MATERIALS AND METHODS: The evaluation protocol consisted of precision, linearity, sensitivity, method comparison, substrate depletion ("hook") effect and interference assessment...
October 15, 2017: Biochemia Medica: časopis Hrvatskoga Društva Medicinskih Biokemičara
https://www.readbyqxmd.com/read/28899631/biochemical-differences-in-the-mass-and-activity-tests-of-lipoprotein-associated-phospholipase-a2-explain-the-discordance-in-results-between-the-two-assay-methods
#13
Shaoqiu Zhuo, Robert L Wolfert, Chong Yuan
OBJECTIVES: There are two platforms for the detection of Lp-PLA2 in sera or plasmas: by its enzymatic activity (PLAC® activity test) and by its mass concentration (PLAC® mass test). It has been long recognized that these two platforms are not correlated well. The underlying cause for this is therefore investigated by the biochemical characterization of the two PLAC tests. DESIGN & METHODS: Human sera with and without the treatment by detergent were fractionated by using a Superose-6 column in phosphate buffered saline and the phospholipid associated Lp-PLA2 was assessed by both PLAC mass and activity tests...
September 9, 2017: Clinical Biochemistry
https://www.readbyqxmd.com/read/28767589/effects-of-fenofibrate-on-inflammatory-cytokines-in-diabetic-retinopathy-patients
#14
Hai-Bing Ju, Fu-Xian Zhang, Shuang Wang, Jie Song, Tao Cui, Li-Feng Li, Hai-Yan Zhang
The role of cytokines in diabetic retinopathy (DR) and effects of fenofibrate on cytokines were explored by observing changes in serum IL-1β, TNF-α, VEGF, and Lp-PLA2 in different stages of DR and the intervention effect of oral fenofibrate on cytokines.In total, 190 patients with type 2 DR were enrolled and divided into 3 groups: diabetic without retinopathy (NDR) group (n = 30), nonproliferative diabetic retinopathy (NPDR) group (n = 80), and proliferative diabetic retinopathy (PDR) group (n = 80)...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28753643/pharmacogenetic-meta-analysis-of-baseline-risk-factors-pharmacodynamic-efficacy-and-tolerability-endpoints-from-two-large-global-cardiovascular-outcomes-trials-for-darapladib
#15
Astrid Yeo, Li Li, Liling Warren, Jennifer Aponte, Dana Fraser, Karen King, Kelley Johansson, Allison Barnes, Colin MacPhee, Richard Davies, Stephanie Chissoe, Elizabeth Tarka, Michelle L O'Donoghue, Harvey D White, Lars Wallentin, Dawn Waterworth
Darapladib, a lipoprotein-associated phospholipase A2 (Lp-PLA2) inhibitor, failed to demonstrate efficacy for the primary endpoints in two large phase III cardiovascular outcomes trials, one in stable coronary heart disease patients (STABILITY) and one in acute coronary syndrome (SOLID-TIMI 52). No major safety signals were observed but tolerability issues of diarrhea and odor were common (up to 13%). We hypothesized that genetic variants associated with Lp-PLA2 activity may influence efficacy and tolerability and therefore performed a comprehensive pharmacogenetic analysis of both trials...
2017: PloS One
https://www.readbyqxmd.com/read/28738484/-correlation-between-serum-inflammatory-cytokine-levels-and-fibrous-cap-thickness-of-fibrofatty-plaque-in-coronary-culprit-lesions
#16
Y Zhong, F Ye, W You, Z M Wu
Objective: To identify the correlation between serum inflammatory cytokine levels including high sensitive C reactive protein (hs-CRP) and lipoprotein associated phospholipase (Lp-PLA2) and the fibrous cap thickness of fibrofatty plaque in coronary culprit lesions. Methods: Clinical data of 117 patients with selective coronary artery angiography diagnosed coronary artery disease admitted to our hospital from January 2015 to January 2016 were retrospective analyzed. According to type of coronary disease, patients were divided into 3 subgroups: SAP group (containing 47 stable angina patients), UAP group (containing 52 unstable angina patients), and NSTEMI group(containing 18 acute non ST segment elevation myocardial infarction patients)...
July 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28726649/lipoprotein-associated-phospholipase-a2-as-a-marker-of-vulnerable-atherosclerotic-plaque-in-patients-with-internal-carotid-artery-stenosis
#17
P Štefanič, I Kopolovets, Z Hertelyová, Š Tóth, M Frankovičová
The aim of this study was to compare the concentration of inflammatory vascular markers and morphological structure of atherosclerotic plaque in symptomatic and asymptomatic patients with the stenosis of internal carotid artery (ICA). The research was carried out in 70 patients with hemodynamically significant stenosis of ICA out of which 40 (57%) were asymptomatic patients and 30 (43%) were symptomatic patients, of which 20 patients (66%) have had a stroke, or transient ischemic attack (TIA), 10 patients (33%)...
June 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28704853/rbp4-lp-pla2-netrin-1-signaling-regulation-of-cognitive-dysfunction-in-diabetic-nephropathy-complicated-with-silent-cerebral-infarction
#18
Danyan Chen, Xiaolong Huang, Song Lu, Huacong Deng, Hua Gan, Xiaogang Du, Tang Weixue
Aim To investigate the RBP4/Lp-PLA2/Netrin-1 signal regulation of cognitive function impairment in diabetic nephropathy patients with silent cerebral infarction (SCI). Methods One-hundred patients newly diagnosed with diabetic nephropathy patients were included. The patients were divided into SCI group and NSCI group according to the radiological data. The degrees of cognitive dysfunction were evaluated. Serum RBP4 concentrations were determined by ELISA and protein expressions of Lp-PLA2 and Netrin-1 were determined by Western Blot...
September 2017: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/28680124/refining-long-term-prediction-of-cardiovascular-risk-in-diabetes-the-vildia-score
#19
Georg Goliasch, Günther Silbernagel, Marcus E Kleber, Tanja B Grammer, Stefan Pilz, Andreas Tomaschitz, Philipp E Bartko, Gerald Maurer, Wolfgang Koenig, Alexander Niessner, Winfried März
Cardiovascular risk assessment in patients with diabetes relies on traditional risk factors. However, numerous novel biomarkers have been found to be independent predictors of cardiovascular disease, which might significantly improve risk prediction in diabetic patients. We aimed to improve prediction of cardiovascular risk in diabetic patients by investigating 135 evolving biomarkers. Based on selected biomarkers a clinically applicable prediction algorithm for long-term cardiovascular mortality was designed...
July 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28673363/a-red-yeast-rice-olive-extract-supplement-reduces-biomarkers-of-oxidative-stress-oxldl-and-lp-pla2-in-subjects-with-metabolic-syndrome-a-randomised-double-blind-placebo-controlled-trial
#20
Nina Hermans, Anastasia Van der Auwera, Annelies Breynaert, Annelies Verlaet, Tess De Bruyne, Luc Van Gaal, Luc Pieters, Veronique Verhoeven
BACKGROUND: Metabolic syndrome (MetS) refers to clustered cardiovascular risk factors (abdominal obesity, pre-diabetes, high blood pressure, dyslipidaemia). Therapies targeting oxidative stress may delay progression to atherosclerosis and diabetes. We investigated the anti-oxidative effect of a supplement combining red yeast rice and olive extract in patients with MetS. METHODS: A double-blind, placebo-controlled, randomised trial was conducted with 50 patients with MetS as defined by National Cholesterol Education Program Adult Treatment Panel III criteria...
July 3, 2017: Trials
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