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Lipoprotein (a)

Toshiaki Teratani, Kengo Tomita, Takahiro Suzuki, Hirotaka Furuhashi, Rie Irie, Makoto Nishikawa, Junji Yamamoto, Toshifumi Hibi, Soichiro Miura, Tohru Minamino, Yuichi Oike, Ryota Hokari, Takanori Kanai
Incidence of nonalcoholic steatohepatitis (NASH), which is considered a hepatic manifestation of metabolic syndrome, has been increasing worldwide with the rise in obesity; however, its pathological mechanism is poorly understood. Here, we demonstrate that the hepatic expression of aortic carboxypeptidase-like protein (ACLP), a glycosylated, secreted protein, increases in NASH in humans and mice. Furthermore, we elucidate that ACLP is a ligand, unrelated to WNT proteins, that activates the canonical WNT pathway and exacerbates NASH pathology...
March 19, 2018: Journal of Clinical Investigation
Hiroshi Yatsuya, Yuanying Li, Yoshihisa Hirakawa, Atsuhiko Ota, Masaaki Matsunaga, Hilawe Esayas Haregot, Chifa Chiang, Yan Zhang, Koji Tamakoshi, Hideaki Toyoshima, Atsuko Aoyama
BACKGROUND: Relatively little evidence exists for type 2 diabetes mellitus (T2DM) prediction models from long-term follow-up studies in East Asians. This study aims to develop a point-based prediction model for 10-year risk of developing T2DM in middle-aged Japanese men. METHODS: We followed 3,540 male participants of Aichi Workers' Cohort Study, who were aged 35-64 years and were free of diabetes in 2002, until March 31, 2015. Baseline age, body mass index (BMI), smoking status, alcohol consumption, regular exercise, medication for dyslipidemia, diabetes family history, and blood levels of triglycerides (TG), high density lipoprotein cholesterol (HDLC) and fasting blood glucose (FBG) were examined using Cox proportional hazard model...
March 17, 2018: Journal of Epidemiology
Ritu S Sharma, David J Harrison, Dorothy Kisielewski, Diane M Cassidy, Alison D McNeilly, Jennifer R Gallagher, Shaun V Walsh, Tadashi Honda, Rory J McCrimmon, Albena T Dinkova-Kostova, Michael L J Ashford, John F Dillon, John D Hayes
Background & Aims: Nonalcoholic steatohepatitis (NASH) is associated with oxidative stress. We surmised that pharmacologic activation of NF-E2 p45-related factor 2 (Nrf2) using the acetylenic tricyclic bis(cyano enone) TBE-31 would suppress NASH because Nrf2 is a transcriptional master regulator of intracellular redox homeostasis. Methods: Nrf2 +/+ and Nrf2 -/- C57BL/6 mice were fed a high-fat plus fructose (HFFr) or regular chow diet for 16 weeks or 30 weeks, and then treated for the final 6 weeks, while still being fed the same HFFr or regular chow diets, with either TBE-31 or dimethyl sulfoxide vehicle control...
March 2018: Cellular and Molecular Gastroenterology and Hepatology
Lina Badimon, Esther Peña, Gemma Arderiu, Teresa Padró, Mark Slevin, Gemma Vilahur, Gemma Chiva-Blanch
C-reactive protein (CRP) is a short pentraxin mainly found as a pentamer in the circulation, or as non-soluble monomers CRP (mCRP) in tissues, exerting different functions. This review is focused on discussing the role of CRP in cardiovascular disease, including recent advances on the implication of CRP and its forms specifically on the pathogenesis of atherothrombosis and angiogenesis. Besides its role in the humoral innate immune response, CRP contributes to cardiovascular disease progression by recognizing and binding multiple intrinsic ligands...
2018: Frontiers in Immunology
Dan Wei, Ningning Zheng, Lanyan Zheng, Leting Wang, Liang Song, Luning Sun
Background: Metabolic syndrome (MS) is a global epidemic that has great socioeconomic and public health implications. This study reports observed effects of the Shexiang Baoxin Pill (SBP) in a rat model of MS and explores its underlying mechanisms of action. Methods: A diet-induced rat model of MS was established according to accepted methods, and the rats were randomly divided into two groups: a control group (0.9% NaCl, 100 mg/kg• d) and a SBP-treated group (SBP, 100 mg/kg• d). Systolic blood pressures, fasting blood glucose (FBS) levels, triglyceride (TG) levels, high-density lipoprotein cholesterol (HDL-C) levels, body weights, and abdominal perimeters were dynamically monitored and analyzed...
2018: Frontiers in Pharmacology
Bing Xu, Qiong-Hua Hu, Bo Zhao, Zong-Ke Zhou
Objective: To investigate the changes of serum leptin, lipid levels, adiponectin, NO and TNF-α in patients withnon-traumatic ischemic necrosis of the femoral head of the femoral head and its meanings. Methods: A total of 80 patients with ischemic necrosis of the femoral head were selected from January 2015 to January 2016. And 30 healthy volunteers who took the same time were selected as the control group. Both subjects were given venous blood in the morning fasting...
December 2017: Saudi Journal of Biological Sciences
Masanari Kuwabara, Claudio Borghi, Arrigo F G Cicero, Ichiro Hisatome, Koichiro Niwa, Minoru Ohno, Richard J Johnson, Miguel A Lanaspa
BACKGROUND: High serum uric acid (SUA) is associated with the dyslipidemia, but whether hyperuricemia predicts an increase in serum low-density lipoprotein (LDL) cholesterol is unknown. This study is to evaluate whether an elevated SUA predicts the development of high LDL cholesterol as well as hypertriglyceridemia. METHODS: This is a retrospective 5-year cohort study of 6476 healthy Japanese adults (age, 45.7 ± 10.1 years; 2.243 men) who underwent health examinations at 2004 and were reevaluated in 2009 at St...
March 13, 2018: International Journal of Cardiology
Jongseok Lee, Sungok Jang, Haemin Jeong, Ohk-Hyun Ryu
Background/Aims: The aim of this study is to compare Friedewald-estimated and directly measured low density lipoprotein cholesterol (LDL-C) values and assess the concordance in guideline risk classification between the two methods. Methods: The data were derived from the 2009 to 2011 Korea National Health and Nutrition Examination Survey. We included subjects with triglyceride (TG) levels < 400 mg/dL. Analysis was done for 6,454 subjects who had all lipid panels- total cholesterol, directly measured LDL-C, high density lipoprotein cholesterol (HDL-C), and TG...
March 21, 2018: Korean Journal of Internal Medicine
Z Checinska-Maciejewska, E Miller-Kasprzak, A Checinska, E Korek, M Gibas-Dorna, A Adamczak-Ratajczak, P Bogdanski, H Krauss
It has been proposed that regular cold swimming is associated with health benefits. However, the effect of cold adaptation on particular cardiovascular risk factors, within a single swimming season, remains unknown. Our aim was to evaluate the impact of cold water swimming on the seasonal changes in lipid profile and on apolipoprotein and homocysteine concentration in 34 cold water swimmers (CWS) aged 48 - 68 years. Blood samples were collected at the beginning (October), the middle (January), and the end (April) of the swimming season...
December 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
Narges Safai, Bendix Carstensen, Henrik Vestergaard, Martin Ridderstråle
OBJECTIVES: To investigate the impact of a multifactorial treatment programme in a real-life setting on clinical outcomes and estimated cardiovascular disease (CVD) risk. DESIGN: A retrospective observational cohort study, using data from the electronic medical records and national registers. SETTING: Tertiary diabetes centre in Denmark. PARTICIPANTS: Patients with type 2 diabetes (n=4299) referred to a programme with focus on treatment of hyperglycaemia, hypertension and dyslipidaemia between 1 January 2001 and 1 April 2016...
March 17, 2018: BMJ Open
Dina Vojinovic, Sven J van der Lee, Cornelia M van Duijn, Meike W Vernooij, Maryam Kavousi, Najaf Amin, Ayşe Demirkan, M Arfan Ikram, Aad van der Lugt, Daniel Bos
BACKGROUND AND AIMS: Increasing evidence shows that intracranial carotid artery atherosclerosis may develop under the influence of a differential metabolic risk factor profile than atherosclerosis in the extracranial part of the carotid artery. To further elucidate these differences, we investigated associations of a wide range of circulating metabolites with intracranial and extracranial carotid artery atherosclerosis. METHODS: From the population-based Rotterdam Study, blood samples from 1111 participants were used to determine a wide range of metabolites by proton nuclear magnetic resonance (NMR)...
March 8, 2018: Atherosclerosis
Jarrod M Zamparini, Andrew R Immelman, Frederick J Raal
BACKGROUND: Patients with homozygous familial hypercholesterolemia (HoFH) develop significant vascular calcification early in life, the cause of which is not yet fully understood. Patients with chronic kidney disease have similar vascular calcification, with fibroblast growth factor-23 (FGF23) implicated in these patients. OBJECTIVE: To determine whether there was a difference in FGF23 between patients with HoFH and age- and gender-matched controls and whether there is a correlation between FGF23 and serum low-density lipoprotein, total cholesterol, and carotid intima-media thickness in patients with HoFH...
February 16, 2018: Journal of Clinical Lipidology
Simone L Verweij, Maurice W J de Ronde, Rutger Verbeek, S Matthijs Boekholdt, R Nils Planken, Erik S G Stroes, Sara-Joan Pinto-Sietsma
BACKGROUND: Elevated lipoprotein(a) (Lp(a)) levels are associated with increased risk for atherosclerotic cardiovascular disease (ASCVD). Individuals with a family history of premature ASCVD are at increased cardiovascular risk with concomitantly a higher burden of (subclinical) atherosclerosis. However, whether Lp(a) contributes to the increased atherosclerotic burden in these individuals remains to be established. OBJECTIVE: In this study, we evaluated the association between Lp(a) levels and coronary atherosclerotic burden, assessed by coronary arterty calcium (CAC) scores, in asymptomatic individuals with a family history of premature ASCVD...
February 16, 2018: Journal of Clinical Lipidology
Yanmao Wang, Yu Zhu, Shengdi Lu, Chengfang Hu, Wanrun Zhong, Yimin Chai
Osteoporosis is linked to reduced bone mineral density (BMD) as a major risk factor for fragility fractures. Recent studies indicated an association between BMD and abnormally elevated lipid levels in blood as common indicators for hyperlipidemia. In this study, we assessed the protective effect of paeoniflorin, a phytochemical compound with multiple pharmacological activities, against hyperlipidemia-induced osteoporosis in rats fed a high-carbohydrate, high-fat diet (HCHF). The special diet-fed rats were subjected to an 8-week treatment with either paeoniflorin (20 mg/kg, daily) or vehicle...
March 16, 2018: Biochemical and Biophysical Research Communications
Saki Yamaura, Shin-Ichi Sakasegawa, Emisa Koguma, Shigeru Ueda, Yuzo Kayamori, Daisuke Sugimori, Ken Karasawa
BACKGROUND: Measurement of lipoprotein-associated phospholipase A2 (Lp-PLA2 ) can be used as an adjunct to traditional cardiovascular risk factors for identifying individuals at higher risk of cardiovascular events. This can be performed by quantification of the protein concentration using an ELISA platform or by measuring Lp-PLA2 activity using platelet-activating factor (PAF) analog as substrate. Here, an enzymatic Lp-PLA2 activity assay method using 1-O-Hexadecyl-2-acetyl-rac-glycero-3-phosphocholine (rac C16 PAF) was developed...
March 14, 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
Ines Potočnjak, Bojana Radulović, Vesna Degoricija, Matias Trbušić, Gudrun Pregartner, Andrea Berghold, Andreas Meinitzer, Saša Frank
BACKGROUND: Serum concentrations of asymmetric (ADMA) and symmetric (SDMA) dimethylarginine are established predictors of total and cardiovascular mortality. However, the predictive capacity of ADMA and SDMA for hospital and 3-months mortality of patients with acute heart failure (AHF) is unknown. METHODS & RESULTS: Out of 152 included AHF patients, 79 (52%) were female, and the mean patient age was 75.2 ± 10.3 years. Hospital and three-month mortality rates were 14...
March 11, 2018: International Journal of Cardiology
Hyunwook Kwon, Hong-Kyu Kim, Sun U Kwon, Seung-Whan Lee, Min-Ju Kim, Jee Won Park, Minsu Noh, Youngjin Han, Tae-Won Kwon, Yong-Pil Cho
This study aimed to test the hypothesis that the risk of major adverse cardiovascular events (MACE) is similar for subjects with asymptomatic mild and moderate carotid artery stenosis (CAS). We enrolled a total of 453 subjects with asymptomatic CAS (30-69%) detected on baseline screening Doppler ultrasound (DUS) examination between January 2008 and December 2010. The follow-up DUS findings and MACE occurrence (fatal or nonfatal myocardial infarction or stroke and all-cause mortality) were compared between subjects with mild (30-49%) and moderate (50-69%) CAS during the 8-year follow-up period...
March 16, 2018: Scientific Reports
Xi Yang, Jun Zhang, Linmu Chen, Qiong Wu, Chao Yu
Chitosan oligosaccharides (COS), linear polymers of N-acetyl-D-glucosamine and deacetylated glucosamine, exhibit diverse pharmacological effects such as antimicrobial, antitumor, antioxidant and anti-inflammatory activities. Here, we explored their hypocholesterolemic effects in vivo and the molecular mechanisms of COS in hepatic cells. Our in vivo study of dyslipidemic ApoE-/- male mice showed that COS treatment of 500mg·kg-1 ·d-1 for 4 weeks clearly reduced the lipid deposits in the aorta and significantly decreased the hepatic proprotein convertase subtilisin/kexin type 9 (PCSK9) protein levels versus HFD groups (p < 0...
March 13, 2018: Experimental Cell Research
Dean G Karalis, Usha G Mallya, Ameen F Ghannam, Joseph Elassal, Rishab Gupta, Susan H Boklage
Two proprotein convertase subtilisin-kexin type 9 (PCSK9) inhibitors are approved for patients with atherosclerotic cardiovascular disease or heterozygous familial hypercholesterolemia who require additional low-density lipoprotein cholesterol (LDL-C) lowering. This retrospective study sought to determine differences between eligible patients who were prescribed and those who were not prescribed a PCSK9 inhibitor. Patients from an electronic medical record database were included in the analysis, and their demographic, clinical, and treatment characteristics were evaluated...
February 12, 2018: American Journal of Cardiology
David S Olshan, Daniel J Rader
The angiopoietin-like proteins are a family of proteins that share structural similarities to the angiopoietins. These proteins have been described to play a key role in the regulation of a myriad of physiologic processes, including serving as essential modulators of lipid and glucose metabolism. Angiopoietin-like protein 4 (ANGPTL4) is a key regulator of lipoprotein lipase, and its modulation has been shown to significantly impact the body's processing and distribution of triglycerides and cholesterol. Although more research remains to elucidate the full range of mechanisms through which ANGPTL4 affects triglyceride and cholesterol homeostasis, current research has associated decreased ANGPTL4 function with a beneficial effect on lipid parameters and overall cardiovascular disease risk, opening the possibility of ANGPTL4 as a new therapeutic target for the treatment of cardiovascular disease...
February 2, 2018: Journal of Clinical Lipidology
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