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Huang J, Lu K, Xie D, Dong S, Zhu F, Lu B, Liu A. Correlation between plasma lipoprotein-associated phospholipase A2 levels and risk of ischaemic stroke recurrence by gender in the Chinese population. Neurol Res 2024; 46:679-689. [PMID: 38602308 DOI: 10.1080/01616412.2024.2340886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 04/04/2024] [Indexed: 04/12/2024]
Abstract
OBJECTIVE To investigate the correlation between gender differences in plasma lipoprotein phospholipase A2 (Lp-PLA2) levels and the risk of recurrent stroke in patients with acute ischaemic stroke in China. METHODS We conducted a prospective follow-up study that included baselineLp-PLA2 levels and NIH Stroke Scale (NIHSS) scores in patients with ischaemic stroke upon admission. The diagnostic efficacy of the baseline Lp-PLA2 level for stroke recurrence was evaluated. And Kaplan‒Meier method was used to analyse the difference in the risk of recurrent stroke between these two groups among males and females. A paired t test was used to analyse the difference in Lp-PLA2 levels in male and female patients after follow-up. RESULTS Baseline plasma Lp-PLA2 was higher in men and women with recurrent stroke than in those without recurrent stroke. The correlation between baseline Lp-PLA2 and neurological impairment was higher in female than male stroke patients (R = 0.338 and 0.253, respectively). Although weakly correlated with neurological impairment, baseline Lp-PLA2 was more effective in predicting recurrent stroke (AUC = 0.705 in men, 0.788 in women). A Cox model was used to compare the risk of stroke between the high- and low-Lp-PLA2 groups (OR = 3.98 in men, 2.61 in women). According to the follow-up time of 6 months as the node, Lp-PLA2 will give different risk indicators. CONCLUSION Elevated plasma Lp-PLA2 is an independent risk factor for recurrent ischaemic stroke but is not strongly associated with the degree of cerebral damage. The predictive value of baseline Lp-PLA2 for stroke recurrence risk was higher in females than in males.
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Affiliation(s)
- Jie Huang
- Department of Clinical Laboratory, The Second People's Hospital of Foshan, Foshan, Guangdong, China
| | - Kunjie Lu
- Department of Clinical Laboratory, The First People's Hospital of Foshan, Foshan, Guangdong, China
| | - Dongde Xie
- Department of Clinical Laboratory, The Second People's Hospital of Foshan, Foshan, Guangdong, China
| | - Shaowen Dong
- Department of Clinical Laboratory, The Second People's Hospital of Foshan, Foshan, Guangdong, China
| | - Fangge Zhu
- Beijing Institute of Brain Disorders, Capital Medical University, Bejing, China
| | - Bingxian Lu
- Beijing Institute of Brain Disorders, Capital Medical University, Bejing, China
| | - Anqi Liu
- Department of Clinical Laboratory, The Second People's Hospital of Foshan, Foshan, Guangdong, China
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English CJ, Jones M, Lohning AE, Mayr HL, MacLaughlin H, Reidlinger DP. Associations between healthy food groups and platelet-activating factor, lipoprotein-associated phospholipase A 2 and C-reactive protein: a cross-sectional study. Eur J Nutr 2024; 63:445-460. [PMID: 38063929 PMCID: PMC10899352 DOI: 10.1007/s00394-023-03277-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 11/02/2023] [Indexed: 02/28/2024]
Abstract
PURPOSE To investigate the association between pro-inflammatory markers platelet-activating factor (PAF), lipoprotein-associated phospholipase A2 (Lp-PLA2), hsCRP, and intake of core food groups including fruit, cruciferous and other vegetables, grains, meat and poultry, fish and seafood, nuts and legumes, and dairy. METHODS A cross-sectional study was conducted. 100 adults (49 ± 13 years, 31% male) with variable cardiovascular disease risk were recruited. Data were collected in 2021 and 2022. Fasting PAF, Lp-PLA2 activity, hsCRP and usual dietary intake (via a validated food frequency questionnaire) were measured. Intake of foods were converted into serves and classified into food groups. Correlations and multiple regressions were performed with adjustment for confounders. RESULTS A one-serve increase in cruciferous vegetables per day was associated with 20-24% lower PAF levels. An increase of one serve per day of nuts and legumes was associated with 40% lower hsCRP levels. There were small correlations with PAF and Lp-PLA2 and cheese, however, these were not significant at the Bonferroni-adjusted P < 0.005 level. CONCLUSION The lack of associations between PAF and Lp-PLA2 and other healthy foods may be due to confounding by COVID-19 infection and vaccination programs which prevents any firm conclusion on the relationship between PAF, Lp-PLA2 and food groups. Future research should aim to examine the relationship with these novel markers and healthy food groups in a non-pandemic setting.
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Affiliation(s)
- Carolyn J English
- Faculty of Health Sciences and Medicine, Bond University, Robina, QLD, Australia
| | - Mark Jones
- Faculty of Health Sciences and Medicine, Institute of Evidence-Based Healthcare, Bond University, Robina, QLD, Australia
| | - Anna E Lohning
- Faculty of Health Sciences and Medicine, Bond University, Robina, QLD, Australia
| | - Hannah L Mayr
- Faculty of Health Sciences and Medicine, Bond University, Robina, QLD, Australia
- Department of Nutrition and Dietetics, Princess Alexandra Hospital, Woolloongabba, QLD, Australia
- Centre for Functioning and Health Research, Metro South Hospital and Health Service, Brisbane, QLD, Australia
| | - Helen MacLaughlin
- Faculty of Health, School of Exercise and Nutrition Sciences, Queensland University of Technology, Brisbane, Australia
- Nutrition Research Collaborative, Royal Brisbane and Women's Hospital, Brisbane, Australia
| | - Dianne P Reidlinger
- Faculty of Health Sciences and Medicine, Bond University, Robina, QLD, Australia.
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3
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English CJ, Lohning AE, Mayr HL, Jones M, MacLaughlin H, Reidlinger DP. The association between dietary quality scores with C-reactive protein and novel biomarkers of inflammation platelet-activating factor and lipoprotein-associated phospholipase A2: a cross-sectional study. Nutr Metab (Lond) 2023; 20:38. [PMID: 37700354 PMCID: PMC10496320 DOI: 10.1186/s12986-023-00756-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 08/24/2023] [Indexed: 09/14/2023] Open
Abstract
Healthy dietary patterns are associated with lower inflammation and cardiovascular disease (CVD) risk and adherence can be measured using diet quality scores. Inflammation is traditionally measured with C-reactive protein (hsCRP), however there is interest in novel pro-inflammatory markers platelet-activating factor (PAF) and lipoprotein-associated phospholipase A2 (Lp-PLA2) that are specifically involved in endothelial dysfunction and inflammation. This cross-sectional study investigated the association between PAF, Lp-PLA2, hsCRP, and six diet scores. One hundred adults (49 ± 13 years, 31% male) with variable CVD risk were recruited. Fasting PAF, Lp-PLA2 and hsCRP and usual dietary intake were measured. Adherence to Dietary Approaches to Stop Hypertension (DASH), Dairy-adjusted DASH, Vegetarian Lifestyle Index, Healthy Eating Index for Australians (HEIFA), Mediterranean Diet Adherence Screener (MEDAS) and PREDIMED-Plus (erMedDiet) scores were calculated. Correlations and multiple regressions were performed. hsCRP, but not PAF, independently correlated with several diet scores. Lp-PLA2 independently correlated with Vegetarian Lifestyle Index only in unadjusted models. A one-point increase in adherence to the DASH Index, the Dairy-adjusted DASH Index and the Vegetarian Lifestyle Index was associated with a 30%, 30%, and 33% reduction in hsCRP levels, respectively. Smaller effects were seen with the other diet scores with a one-point increase in adherence resulting in a 19%, 22% and 16% reduction in hsCRP with HEIFA, MEDAS, erMedDiet scores, respectively. The lack of stronger associations between the novel markers of inflammation and diet scores may be due to confounding by COVID-19 infection and vaccination programs, which prevents any firm conclusion on the relationship between PAF, Lp-PLA2 and healthy dietary patterns. Future research should aim to examine the relationship with these novel markers and healthy dietary patterns in a non-pandemic setting.
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Affiliation(s)
- Carolyn J English
- Faculty of Health Sciences and Medicine, Bond University, Robina, QLD, Australia
| | - Anna E Lohning
- Faculty of Health Sciences and Medicine, Bond University, Robina, QLD, Australia
| | - Hannah L Mayr
- Faculty of Health Sciences and Medicine, Bond University, Robina, QLD, Australia
- Department of Nutrition and Dietetics, Princess Alexandra Hospital, Woolloongabba, QLD, Australia
- Centre for Functioning and Health Research, Metro South Hospital and Health Service, Brisbane, QLD, Australia
| | - Mark Jones
- Faculty of Health Sciences and Medicine, Institute of Evidence-Based Healthcare, Bond University, Robina, QLD, Australia
| | - Helen MacLaughlin
- Faculty of Health, School of Exercise and Nutrition Sciences, Queensland University of Technology, Brisbane, Australia
- Nutrition Research Collaborative, Royal Brisbane and Women's Hospital, Brisbane, Australia
| | - Dianne P Reidlinger
- Faculty of Health Sciences and Medicine, Bond University, Robina, QLD, Australia.
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4
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Cho YK, Lee S, Lee J, Doh J, Park JH, Jung YS, Lee YH. Lipid remodeling of adipose tissue in metabolic health and disease. Exp Mol Med 2023; 55:1955-1973. [PMID: 37653032 PMCID: PMC10545718 DOI: 10.1038/s12276-023-01071-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 05/30/2023] [Accepted: 06/05/2023] [Indexed: 09/02/2023] Open
Abstract
Adipose tissue is a dynamic and metabolically active organ that plays a crucial role in energy homeostasis and endocrine function. Recent advancements in lipidomics techniques have enabled the study of the complex lipid composition of adipose tissue and its role in metabolic disorders such as obesity, diabetes, and cardiovascular disease. In addition, adipose tissue lipidomics has emerged as a powerful tool for understanding the molecular mechanisms underlying these disorders and identifying bioactive lipid mediators and potential therapeutic targets. This review aims to summarize recent lipidomics studies that investigated the dynamic remodeling of adipose tissue lipids in response to specific physiological changes, pharmacological interventions, and pathological conditions. We discuss the molecular mechanisms of lipid remodeling in adipose tissue and explore the recent identification of bioactive lipid mediators generated in adipose tissue that regulate adipocytes and systemic metabolism. We propose that manipulating lipid-mediator metabolism could serve as a therapeutic approach for preventing or treating obesity-related metabolic diseases.
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Affiliation(s)
- Yoon Keun Cho
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Republic of Korea
| | - Sumin Lee
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Republic of Korea
| | - Jaewon Lee
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Republic of Korea
| | - Junsang Doh
- Department of Materials Science and Engineering, Research Institute of Advanced Materials, Institute of Engineering Research, Bio-MAX Institute, Soft Foundry Institute, Seoul National University, Seoul, Republic of Korea
| | - Joo-Hong Park
- School of Biological Sciences, Seoul National University, Seoul, Republic of Korea
| | - Young-Suk Jung
- College of Pharmacy, Pusan National University, Busan, Republic of Korea
| | - Yun-Hee Lee
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, Republic of Korea.
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5
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Beckner ME, Thompson L, Radcliffe PN, Cherian R, Wilson M, Barringer N, Margolis LM, Karl JP. Sex differences in body composition and serum metabolome responses to sustained, physical training suggest enhanced fat oxidation in women compared with men. Physiol Genomics 2023; 55:235-247. [PMID: 37012051 PMCID: PMC10190831 DOI: 10.1152/physiolgenomics.00180.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 03/02/2023] [Accepted: 03/28/2023] [Indexed: 04/05/2023] Open
Abstract
Sex differences in energy metabolism during acute, submaximal exercise are well documented. Whether these sex differences influence metabolic and physiological responses to sustained, physically demanding activities is not well characterized. This study aimed to identify sex differences within changes in the serum metabolome in relation to changes in body composition, physical performance, and circulating markers of endocrine and metabolic status during a 17-day military training exercise. Blood was collected, and body composition and lower body power were measured before and after the training on 72 cadets (18 women). Total daily energy expenditure (TDEE) was assessed using doubly labeled water in a subset throughout. TDEE was greater in men (4,085 ± 482 kcal/d) than in women (2,982 ± 472 kcal/d, P < 0.001), but not after adjustment for dry lean mass (DLM). Men tended to lose more DLM than women (mean change [95% CI]: -0.2[-0.3, -0.1] vs. -0.0[-0.0, 0.0] kg, P = 0.063, Cohen's d = 0.50) and have greater reductions in lower body power (-244[-314, -174] vs. -130[-209, -51] W, P = 0.085, d = 0.49). Reductions in DLM and lower body power were correlated (r = 0.325, P = 0.006). Women demonstrated greater fat oxidation than men (Δfat mass/DLM: -0.20[-0.24, -0.17] vs. -0.15[-0.17, -0.13] kg, P = 0.012, d = 0.64). Metabolites within pathways of fatty acid, endocannabinoid, lysophospholipid, phosphatidylcholine, phosphatidylethanolamine, and plasmalogen metabolism increased in women relative to men. Independent of sex, changes in metabolites related to lipid metabolism were inversely associated with changes in body mass and positively associated with changes in endocrine and metabolic status. These data suggest that during sustained military training, women preferentially mobilize fat stores compared with men, which may be beneficial for mitigating loss of lean mass and lower body power.NEW & NOTEWORTHY Women preferentially mobilize fat stores compared with men in response to sustained, physically demanding military training, as evidenced by increased lipid metabolites and enhanced fat oxidation, which may be beneficial for mitigating loss of lean mass and lower body power.
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Affiliation(s)
- Meaghan E Beckner
- U.S. Army Research Institute of Environmental Medicine, Natick, Massachusetts, United States
- Oak Ridge Institute for Science and Education, Oak Ridge, Tennessee, United States
| | - Lauren Thompson
- U.S. Army Research Institute of Environmental Medicine, Natick, Massachusetts, United States
| | - Patrick N Radcliffe
- U.S. Army Research Institute of Environmental Medicine, Natick, Massachusetts, United States
- Oak Ridge Institute for Science and Education, Oak Ridge, Tennessee, United States
| | - Rebecca Cherian
- U.S. Army Research Institute of Environmental Medicine, Natick, Massachusetts, United States
| | - Marques Wilson
- U.S. Army Research Institute of Environmental Medicine, Natick, Massachusetts, United States
| | - Nicholas Barringer
- Medical Center of Excellence, Joint Base San Antonio-Fort Sam Houston, Texas, United States
| | - Lee M Margolis
- U.S. Army Research Institute of Environmental Medicine, Natick, Massachusetts, United States
| | - J Philip Karl
- U.S. Army Research Institute of Environmental Medicine, Natick, Massachusetts, United States
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Medina J, Borreggine R, Teav T, Gao L, Ji S, Carrard J, Jones C, Blomberg N, Jech M, Atkins A, Martins C, Schmidt-Trucksass A, Giera M, Cazenave-Gassiot A, Gallart-Ayala H, Ivanisevic J. Omic-Scale High-Throughput Quantitative LC-MS/MS Approach for Circulatory Lipid Phenotyping in Clinical Research. Anal Chem 2023; 95:3168-3179. [PMID: 36716250 DOI: 10.1021/acs.analchem.2c02598] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Lipid analysis at the molecular species level represents a valuable opportunity for clinical applications due to the essential roles that lipids play in metabolic health. However, a comprehensive and high-throughput lipid profiling remains challenging given the lipid structural complexity and exceptional diversity. Herein, we present an 'omic-scale targeted LC-MS/MS approach for the straightforward and high-throughput quantification of a broad panel of complex lipid species across 26 lipid (sub)classes. The workflow involves an automated single-step extraction with 2-propanol, followed by lipid analysis using hydrophilic interaction liquid chromatography in a dual-column setup coupled to tandem mass spectrometry with data acquisition in the timed-selective reaction monitoring mode (12 min total run time). The analysis pipeline consists of an initial screen of 1903 lipid species, followed by high-throughput quantification of robustly detected species. Lipid quantification is achieved by a single-point calibration with 75 isotopically labeled standards representative of different lipid classes, covering lipid species with diverse acyl/alkyl chain lengths and unsaturation degrees. When applied to human plasma, 795 lipid species were measured with median intra- and inter-day precisions of 8.5 and 10.9%, respectively, evaluated within a single and across multiple batches. The concentration ranges measured in NIST plasma were in accordance with the consensus intervals determined in previous ring-trials. Finally, to benchmark our workflow, we characterized NIST plasma materials with different clinical and ethnic backgrounds and analyzed a sub-set of sera (n = 81) from a clinically healthy elderly population. Our quantitative lipidomic platform allowed for a clear distinction between different NIST materials and revealed the sex-specificity of the serum lipidome, highlighting numerous statistically significant sex differences.
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Affiliation(s)
- Jessica Medina
- Metabolomics Platform, Faculty of Biology and Medicine, University of Lausanne, Quartier UNIL-CHUV, Rue du Bugnon 19, Lausanne CH-1005, Switzerland
| | - Rebecca Borreggine
- Metabolomics Platform, Faculty of Biology and Medicine, University of Lausanne, Quartier UNIL-CHUV, Rue du Bugnon 19, Lausanne CH-1005, Switzerland
| | - Tony Teav
- Metabolomics Platform, Faculty of Biology and Medicine, University of Lausanne, Quartier UNIL-CHUV, Rue du Bugnon 19, Lausanne CH-1005, Switzerland
| | - Liang Gao
- Department of Biochemistry and Precision Medicine TRP, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117456, Singapore.,Singapore Lipidomics Incubator, Life Sciences Institute, National University of Singapore, Singapore 117456, Singapore
| | - Shanshan Ji
- Singapore Lipidomics Incubator, Life Sciences Institute, National University of Singapore, Singapore 117456, Singapore
| | - Justin Carrard
- Division of Sports and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Birsstrasse 320B, Basel CH-4052, Switzerland
| | - Christina Jones
- Material Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
| | - Niek Blomberg
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Leiden 2333ZA, Netherlands
| | - Martin Jech
- Thermo Fisher Scientific, 355 River Oaks Pkwy, San Jose, California 95134, United States
| | - Alan Atkins
- Thermo Fisher Scientific, 355 River Oaks Pkwy, San Jose, California 95134, United States
| | - Claudia Martins
- Thermo Fisher Scientific, 355 River Oaks Pkwy, San Jose, California 95134, United States
| | - Arno Schmidt-Trucksass
- Division of Sports and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Birsstrasse 320B, Basel CH-4052, Switzerland
| | - Martin Giera
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Leiden 2333ZA, Netherlands
| | - Amaury Cazenave-Gassiot
- Department of Biochemistry and Precision Medicine TRP, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117456, Singapore.,Singapore Lipidomics Incubator, Life Sciences Institute, National University of Singapore, Singapore 117456, Singapore
| | - Hector Gallart-Ayala
- Metabolomics Platform, Faculty of Biology and Medicine, University of Lausanne, Quartier UNIL-CHUV, Rue du Bugnon 19, Lausanne CH-1005, Switzerland
| | - Julijana Ivanisevic
- Metabolomics Platform, Faculty of Biology and Medicine, University of Lausanne, Quartier UNIL-CHUV, Rue du Bugnon 19, Lausanne CH-1005, Switzerland
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Zanni MV, Foldyna B, McCallum S, Burdo TH, Looby SE, Fitch KV, Fulda ES, Autissier P, Bloomfield GS, Malvestutto CD, Fichtenbaum CJ, Overton ET, Aberg JA, Erlandson KM, Campbell TB, Ellsworth GB, Sheth AN, Taiwo B, Currier JS, Hoffmann U, Lu MT, Douglas PS, Ribaudo HJ, Grinspoon SK. Sex Differences in Subclinical Atherosclerosis and Systemic Immune Activation/Inflammation Among People With Human Immunodeficiency Virus in the United States. Clin Infect Dis 2023; 76:323-334. [PMID: 36101518 PMCID: PMC9839188 DOI: 10.1093/cid/ciac767] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 08/26/2022] [Accepted: 09/12/2022] [Indexed: 01/31/2023] Open
Abstract
BACKGROUND Among people with HIV (PWH), sex differences in presentations of atherosclerotic cardiovascular disease (ASCVD) may be influenced by differences in coronary plaque parameters, immune/inflammatory biomarkers, or relationships therein. METHODS REPRIEVE, a primary ASCVD prevention trial, enrolled antiretroviral therapy (ART)-treated PWH. At entry, a subset of US participants underwent coronary computed tomography angiography (CTA) and immune phenotyping (n = 755 CTA; n = 725 CTA + immune). We characterized sex differences in coronary plaque and immune/inflammatory biomarkers and compared immune-plaque relationships by sex. Unless noted otherwise, analyses adjust for ASCVD risk score. RESULTS The primary analysis cohort included 631 males and 124 females. ASCVD risk was higher among males (median: 4.9% vs 2.1%), while obesity rates were higher among females (48% vs 21%). Prevalence of any plaque and of plaque with either ≥1 visible noncalcified portion or vulnerable features (NC/V-P) was lower among females overall and controlling for relevant risk factors (RR [95% CI] for any plaque: .67 [.50, .92]; RR for NC/V-P: .71 [.51, 1.00] [adjusted for ASCVD risk score and body mass index]). Females showed higher levels of IL-6, hs-CRP, and D-dimer and lower levels of Lp-PLA2 (P < .001 for all). Higher levels of Lp-PLA2, MCP-1, and oxLDL were associated with higher plaque (P < .02) and NC/V-P prevalence, with no differences by sex. Among females but not males, D-dimer was associated with higher prevalence of NC/V-P (interaction P = .055). CONCLUSIONS Among US PWH, females had a lower prevalence of plaque and NC/V-P, as well as differences in key immune/inflammatory biomarkers. Immune-plaque relationships differed by sex for D-dimer but not other tested parameters. Clinical Trial Registration. ClinicalTrials.gov; identifier: NCT0234429 (date of initial registration: 22 January 2015).
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Affiliation(s)
- Markella V Zanni
- Metabolism Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Borek Foldyna
- Cardiovascular Imaging Research Center, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Sara McCallum
- Metabolism Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Tricia H Burdo
- Department of Microbiology, Immunology, and Inflammation and Center for NeuroVirology and Gene Editing, Temple University Lewis Katz School of Medicine, Philadelphia, Pennsylvania, USA
| | - Sara E Looby
- Metabolism Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
- Yvonne L. Munn Center for Nursing Research, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Kathleen V Fitch
- Metabolism Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Evelynne S Fulda
- Metabolism Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Patrick Autissier
- Department of Biology , Boston College, Chestnut Hill, Massachusetts, USA
| | - Gerald S Bloomfield
- Department of Medicine, Duke Global Health Institute and Duke Clinical Research Institute, Duke University, Durham, North Carolina, USA
| | - Carlos D Malvestutto
- Division of Infectious Diseases, Ohio State University Medical Center, Columbus, Ohio, USA
| | - Carl J Fichtenbaum
- Division of Infectious Diseases, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Edgar T Overton
- Division of Infectious Diseases, University of Alabama at Birmingham School of Medicine, Birmingham, Alabama, USA
| | - Judith A Aberg
- Division of Infectious Diseases, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Kristine M Erlandson
- Department of Medicine, Division of Infectious Disease, University of Colorado—Anschutz Medical Campus, Aurora, Colorado, USA
| | - Thomas B Campbell
- Department of Medicine, Division of Infectious Disease, University of Colorado—Anschutz Medical Campus, Aurora, Colorado, USA
| | - Grant B Ellsworth
- Department of Medicine, Division of Infectious Diseases, Weill Cornell Medicine, New York, New York, USA
| | - Anandi N Sheth
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Babafemi Taiwo
- Division of Infectious Diseases and Center for Global Health, Northwestern University, Chicago, Illinois, USA
| | - Judith S Currier
- Division of Infectious Diseases, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California, USA
| | - Udo Hoffmann
- Cardiovascular Imaging Research Center, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Michael T Lu
- Cardiovascular Imaging Research Center, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Pamela S Douglas
- Duke University Research Institute, Duke University School of Medicine, Durham, North Carolina, USA
| | - Heather J Ribaudo
- Center for Biostatistics in AIDS Research, Harvard T. H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Steven K Grinspoon
- Metabolism Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
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8
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English CJ, Lohning AE, Mayr HL, Jones M, Reidlinger DP. Interrelationships among platelet-activating factor and lipoprotein-associated phospholipase A 2 activity and traditional cardiovascular risk factors. Biofactors 2022; 49:457-471. [PMID: 36538603 DOI: 10.1002/biof.1928] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 12/01/2022] [Indexed: 12/24/2022]
Abstract
Traditionally cardiovascular disease (CVD) risk has been assessed through blood lipids and inflammatory marker C-reactive protein (hsCRP). Recent clinical interest in novel pro-inflammatory markers platelet-activating factor (PAF) and lipoprotein-associated phospholipase A2 (Lp-PLA2 ) recognizes that vascular damage can exist in the absence of traditional risk factors. This cross-sectional study investigated the potential relationship between circulating PAF, Lp-PLA2 , hsCRP, and traditional risk factors for CVD. One hundred adults (49 ± 13 years, 31% male) with variable CVD risk were recruited. Fasting inflammatory markers PAF, Lp-PLA2 and hsCRP and total, high-density lipoprotein (HDL), low-density lipoprotein (LDL) cholesterol, and triglycerides were measured. Blood pressure, body mass index, and waist circumference were measured. Medical and physical activity data were self-reported. Linear and multiple regressions were performed. PAF, Lp-PLA2 , and hsCRP independently correlated with several CVD risk factors. PAF was correlated significantly with risk factors in an unexpected way; there was a medium positive correlation between PAF and HDL cholesterol (r = 0.394, p < 0.001) and medium negative correlations with Total:HDL cholesterol; (r = -0.436, p < 0.001) systolic blood pressure; (r = -0.307, p = 0.001); BMI (r = -0.381, p < 0.001); and waist circumference (r = -0.404, p < 0.001). There were large positive correlations between Lp-PLA2 and LDL (r = 0.525, p < 0.001) and non-HDL cholesterol (r = 0.508, p < 0.001). There were large positive correlations between hsCRP and Total:HDL cholesterol (r = 0.524, p < 0.001); BMI (r = 0.668, p < 0.001); and waist circumference (r = 0.676, p < 0.001). PAF, Lp-PLA2 , and hsCRP are implicated in the pathophysiology of inflammation in CVD; however, the relationships between each marker and traditional risk factors were different suggesting they may be involved in different atherogenic pathways.
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Affiliation(s)
- Carolyn J English
- Bond University, Faculty of Health Sciences and Medicine, Bond University, Robina, Queensland, Australia
| | - Anna E Lohning
- Bond University, Faculty of Health Sciences and Medicine, Bond University, Robina, Queensland, Australia
| | - Hannah L Mayr
- Bond University, Faculty of Health Sciences and Medicine, Bond University, Robina, Queensland, Australia
- Department of Nutrition and Dietetics, Princess Alexandra Hospital, Woolloongabba, Queensland, Australia
- Centre for Functioning and Health Research, Metro South Hospital and Health Service, Brisbane, Queensland, Australia
| | - Mark Jones
- Institute of Evidence-Based Healthcare, Faculty of Health Sciences and Medicine, Bond University, Robina, Queensland, Australia
| | - Dianne P Reidlinger
- Bond University, Faculty of Health Sciences and Medicine, Bond University, Robina, Queensland, Australia
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9
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Clark K, Sharp S, Womack CJ, Kurti SP, Hargens TA. Increased sedentary time and decreased physical activity increases lipoprotein associated phospholipase A 2 in obese individuals. Nutr Metab Cardiovasc Dis 2022; 32:1703-1710. [PMID: 35637082 DOI: 10.1016/j.numecd.2022.04.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 04/26/2022] [Accepted: 04/27/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND AND AIMS Lipoprotein-associated Phospholipase A2 (Lp-PLA2) is a protein produced by inflammatory cells in circulation and is associated with cardiovascular disease (CVD) risk. Physical activity (PA) is known to reduce inflammation and risk for CVD. However, Lp-PLA2 has yet to be examined in relation to PA and sedentary time. The purpose of this study was to determine if PA and sedentary time impacts Lp-PLA2 mass. A total of 25 subjects with an average BMI of 30.6 ± 5.7 were included in the data analysis. METHODS AND RESULTS Data collected included anthropometric data, Lp-PLA2 mass, peak oxygen uptake (VO2peak), resting heart rate and blood pressure, obstructive sleep apnea (OSA) risk, and assessment of PA using an accelerometer. Sedentary minutes per day was positively associated with Lp-PLA2 (r = 0.41, P < 0.05). Light intensity PA was negatively associated (r = -0.51. P = 0.01) with Lp-PLA2. When subjects were divided into 2-quantiles by Lp-PLA2, the group with the higher Lp-PLA2 mass accumulated more sedentary time per day (P < 0.001) and less light intensity PA per day (P = 0.001). OSA risk and Lp-PLA2 showed no relationship. Sedentary behavior was higher, and light intensity PA was lower in subjects with hiLp-PLA2 mass. No difference was seen in moderate-to-vigorous intensity PA or steps per day. CONCLUSIONS This suggests that, total PA habits, including time spent sedentary and lower intensity PA, impacts the levels of Lp-PLA2, an important inflammatory marker and marker of CVD risk.
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Affiliation(s)
- Kendall Clark
- Human Performance Laboratory, Department of Kinesiology, James Madison University, 261 Bluestone Dr MSC 2302, Harrisonburg, VA, 22807, USA.
| | - Sydney Sharp
- Human Performance Laboratory, Department of Kinesiology, James Madison University, 261 Bluestone Dr MSC 2302, Harrisonburg, VA, 22807, USA.
| | - Christopher J Womack
- Human Performance Laboratory, Department of Kinesiology, James Madison University, 261 Bluestone Dr MSC 2302, Harrisonburg, VA, 22807, USA.
| | - Stephanie P Kurti
- Human Performance Laboratory, Department of Kinesiology, James Madison University, 261 Bluestone Dr MSC 2302, Harrisonburg, VA, 22807, USA.
| | - Trent A Hargens
- Department of Kinesiology, James Madison University, 261 Bluestone Dr. MSC 2302, Harrisonburg, VA, 22807, USA.
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10
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Sun L, Zhu Z, Shi M, Jia Y, Yang P, Wang Y, Liu F, Zhang Y. Causal effect of Lipoprotein-associated phospholipase A2 activity on coronary artery disease and myocardial Infarction: A Two-Sample Mendelian Randomization study. Clin Chim Acta 2021; 523:491-496. [PMID: 34740601 DOI: 10.1016/j.cca.2021.10.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 10/21/2021] [Accepted: 10/28/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND Lipoprotein-associated phospholipase A2 (Lp-PLA2) activity has been reported to be associated with coronary artery disease (CAD) and myocardial infarction (MI). However, whether Lp-PLA2 is a causal risk factor for CAD and MI remains unclear. Herein, we performed a two-sample mendelian randomization (MR) study to assess the causal effect of Lp-PLA2 activity on CAD and MI. METHODS We selected 7 single-nucleotide polymorphisms (SNPs) associated with Lp-PLA2 activity as instrumental variables based on the data from Cohorts for Heart and Aging Research in Genomic Epidemiology (CHARGE) Consortium with 13,664 European individuals. Summary data about CAD and MI were obtained from Coronary Artery Disease Genome-wide Replication and Meta-analysis plus the Coronary Artery Disease Genetics (CARDIOGRAMPLUSC4D) consortium with 60,801 CAD cases and 43,676 MI cases (mostly European). The inverse-variance weighted method was applied to assess the causal associations of Lp-PLA2 activity with CAD and MI in the main analysis. RESULTS The main inverse-variance weighted (IVW) MR analysis showed that 1-SD increment in genetically determined LP-PLA2 activity was associated with increased risks of CAD (odds ratio, 5.93; 95% CI, 2.91-12.07; p value = 9.43 × 10-7) and MI (odds ratio, 4.71; 95% CI, 2.49-8.90; p value = 1.86 × 10-6). MR-Egger regression showed no evidence of pleiotropic bias. The causal associations were consistent in sensitivity analyses with multiple MR methods, in which showed Lp-PLA2 activity was causally associated with an increased risk of CAD and MI. CONCLUSIONS In this two-sample MR study, high Lp-PLA2 activity was a causal risk factor for CAD and MI, indicating that Lp-PLA2 activity may be a promising intervention target in reducing the risk of CAD and MI.
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Affiliation(s)
- Lulu Sun
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, China
| | - Zhengbao Zhu
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, China.
| | - Mengyao Shi
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, China
| | - Yiming Jia
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, China
| | - Pinni Yang
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, China
| | - Yu Wang
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, China
| | - Fanghua Liu
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, China
| | - Yonghong Zhang
- Department of Epidemiology, School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Medical College of Soochow University, Suzhou, China.
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11
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Beyene HB, Olshansky G, T. Smith AA, Giles C, Huynh K, Cinel M, Mellett NA, Cadby G, Hung J, Hui J, Beilby J, Watts GF, Shaw JS, Moses EK, Magliano DJ, Meikle PJ. High-coverage plasma lipidomics reveals novel sex-specific lipidomic fingerprints of age and BMI: Evidence from two large population cohort studies. PLoS Biol 2020; 18:e3000870. [PMID: 32986697 PMCID: PMC7544135 DOI: 10.1371/journal.pbio.3000870] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 10/08/2020] [Accepted: 09/01/2020] [Indexed: 12/11/2022] Open
Abstract
Obesity and related metabolic diseases show clear sex-related differences. The growing burden of these diseases calls for better understanding of the age- and sex-related metabolic consequences. High-throughput lipidomic analyses of population-based cohorts offer an opportunity to identify disease-risk-associated biomarkers and to improve our understanding of lipid metabolism and biology at a population level. Here, we comprehensively examined the relationship between lipid classes/subclasses and molecular species with age, sex, and body mass index (BMI). Furthermore, we evaluated sex specificity in the association of the plasma lipidome with age and BMI. Some 747 targeted lipid measures, representing 706 molecular lipid species across 36 classes/subclasses, were measured using a high-performance liquid chromatography coupled mass spectrometer on a total of 10,339 participants from the Australian Diabetes, Obesity and Lifestyle Study (AusDiab), with 563 lipid species being validated externally on 4,207 participants of the Busselton Health Study (BHS). Heat maps were constructed to visualise the relative differences in lipidomic profile between men and women. Multivariable linear regression analyses, including sex-interaction terms, were performed to assess the associations of lipid species with cardiometabolic phenotypes. Associations with age and sex were found for 472 (66.9%) and 583 (82.6%) lipid species, respectively. We further demonstrated that age-associated lipidomic fingerprints differed by sex. Specific classes of ether-phospholipids and lysophospholipids (calculated as the sum composition of the species within the class) were inversely associated with age in men only. In analyses with women alone, higher triacylglycerol and lower lysoalkylphosphatidylcholine species were observed among postmenopausal women compared with premenopausal women. We also identified sex-specific associations of lipid species with obesity. Lysophospholipids were negatively associated with BMI in both sexes (with a larger effect size in men), whilst acylcarnitine species showed opposing associations based on sex (positive association in women and negative association in men). Finally, by utilising specific lipid ratios as a proxy for enzymatic activity, we identified stearoyl CoA desaturase (SCD-1), fatty acid desaturase 3 (FADS3), and plasmanylethanolamine Δ1-desaturase activities, as well as the sphingolipid metabolic pathway, as constituent perturbations of cardiometabolic phenotypes. Our analyses elucidate the effect of age and sex on lipid metabolism by offering a comprehensive view of the lipidomic profiles associated with common cardiometabolic risk factors. These findings have implications for age- and sex-dependent lipid metabolism in health and disease and suggest the need for sex stratification during lipid biomarker discovery, establishing biological reference intervals for assessment of disease risk.
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Affiliation(s)
- Habtamu B. Beyene
- Baker Heart and Diabetes Institute, Melbourne, Australia
- Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Australia
| | | | | | - Corey Giles
- Baker Heart and Diabetes Institute, Melbourne, Australia
| | - Kevin Huynh
- Baker Heart and Diabetes Institute, Melbourne, Australia
| | - Michelle Cinel
- Baker Heart and Diabetes Institute, Melbourne, Australia
| | | | - Gemma Cadby
- School of Population and Global Health, University of Western Australia, Perth, Australia
| | - Joseph Hung
- Medical School, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Australia
| | - Jennie Hui
- School of Population and Global Health, University of Western Australia, Perth, Australia
- PathWest Laboratory Medicine of Western Australia, Nedlands, Western Australia
| | - John Beilby
- PathWest Laboratory Medicine of Western Australia, Nedlands, Western Australia
| | - Gerald F. Watts
- Medical School, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Australia
- Lipid Disorders Clinic, Department of Cardiology, Royal Perth Hospital, Perth, Australia
| | | | - Eric K. Moses
- Menzies Institute for Medical Research, University of Tasmania, Tasmania, Australia
| | - Dianna J. Magliano
- Baker Heart and Diabetes Institute, Melbourne, Australia
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
| | - Peter J. Meikle
- Baker Heart and Diabetes Institute, Melbourne, Australia
- Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Australia
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12
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Bordoni L, Fedeli D, Piangerelli M, Pelikant-Malecka I, Radulska A, Samulak JJ, Sawicka AK, Lewicki L, Kalinowski L, Olek RA, Gabbianelli R. Gender-Related Differences in Trimethylamine and Oxidative Blood Biomarkers in Cardiovascular Disease Patients. Biomedicines 2020; 8:biomedicines8080238. [PMID: 32717906 PMCID: PMC7460342 DOI: 10.3390/biomedicines8080238] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 07/13/2020] [Accepted: 07/20/2020] [Indexed: 12/21/2022] Open
Abstract
Gender differences in the burden of cardiovascular disease (CVD) have been observed worldwide. In this study, plasmatic levels of trimethylamine (TMA) and blood oxidative biomarkers have been evaluated in 358 men (89 controls and 269 CVD patients) and 189 women (64 control and 125 CVD patients). The fluorescence technique was applied to determine erythrocyte membrane fluidity using 1,6-diphenyl-1,3,5-hexatriene (DPH) and Laurdan, while lipid hydroperoxides were assessed by diphenyl−1-pyrenylphosphine (DPPP). Results show that levels of plasmatic TMA were higher in healthy men with respect to healthy women (p = 0.0001). Significantly lower TMA was observed in male CVD patients (0.609 ± 0.104 μM) compared to healthy male controls (0.680 ± 0.118 μM) (p < 0.001), while higher levels of TMA were measured in female CVD patients (0.595 ± 0.115 μM) with respect to female controls (0.529 ± 0.073 μM) (p < 0.001). DPPP was significantly higher in healthy control men than in women (p < 0.001). Male CVD patients displayed a lower value of DPPP (2777 ± 1924) compared to healthy controls (5528 ± 2222) (p < 0.001), while no significant changes were measured in females with or without CVD (p > 0.05). Membrane fluidity was significantly higher (p < 0.001) in the hydrophobic bilayer only in control male subjects. In conclusion, gender differences were observed in blood oxidative biomarkers, and DPPP value might be suggested as a biomarker predictive of CVD only in men.
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Affiliation(s)
- Laura Bordoni
- Unit of Molecular Biology, School of Pharmacy, University of Camerino, 62032 Camerino, Italy; (L.B.); (D.F.)
| | - Donatella Fedeli
- Unit of Molecular Biology, School of Pharmacy, University of Camerino, 62032 Camerino, Italy; (L.B.); (D.F.)
| | - Marco Piangerelli
- Computer Science Division and Mathematics Division, School of Science and Technology, University of Camerino, 62032 Camerino, Italy;
| | - Iwona Pelikant-Malecka
- Department of Medical Laboratory Diagnostics, Medical University of Gdansk, 80-211 Gdansk, Poland; (I.P.-M.); (A.R.); (L.K.)
- Biobanking and Biomolecular Resources Research Infrastructure Poland (BBMRI.PL), 80-211 Gdansk, Poland
| | - Adrianna Radulska
- Department of Medical Laboratory Diagnostics, Medical University of Gdansk, 80-211 Gdansk, Poland; (I.P.-M.); (A.R.); (L.K.)
- Biobanking and Biomolecular Resources Research Infrastructure Poland (BBMRI.PL), 80-211 Gdansk, Poland
| | - Joanna J. Samulak
- Doctoral School for Physical Culture Sciences, 80-336 Gdansk, Poland; (J.J.S.); (A.K.S.)
| | - Angelika K. Sawicka
- Doctoral School for Physical Culture Sciences, 80-336 Gdansk, Poland; (J.J.S.); (A.K.S.)
- Department of Human Physiology, Faculty of Health Sciences, Medical University of Gdansk, 80-210 Gdansk, Poland
| | - Lukasz Lewicki
- University Center for Cardiology, Gdansk, Debinki 2, 80-211 Gdansk, Poland;
| | - Leszek Kalinowski
- Department of Medical Laboratory Diagnostics, Medical University of Gdansk, 80-211 Gdansk, Poland; (I.P.-M.); (A.R.); (L.K.)
- Biobanking and Biomolecular Resources Research Infrastructure Poland (BBMRI.PL), 80-211 Gdansk, Poland
- Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk, Poland
| | - Robert A. Olek
- Department of Athletics, Strength and Conditioning, Poznan University of Physical Education, 61-871 Poznan, Poland
- Correspondence: (R.A.O.); (R.G.); Tel.: +48-61-8355270 (R.A.O.); +39-0737-403208 (R.G.)
| | - Rosita Gabbianelli
- Unit of Molecular Biology, School of Pharmacy, University of Camerino, 62032 Camerino, Italy; (L.B.); (D.F.)
- Correspondence: (R.A.O.); (R.G.); Tel.: +48-61-8355270 (R.A.O.); +39-0737-403208 (R.G.)
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13
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Miletić Vukajlović J, Drakulić D, Pejić S, Ilić TV, Stefanović A, Petković M, Schiller J. Increased plasma phosphatidylcholine/lysophosphatidylcholine ratios in patients with Parkinson's disease. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2020; 34:e8595. [PMID: 31519070 DOI: 10.1002/rcm.8595] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 09/03/2019] [Accepted: 09/08/2019] [Indexed: 06/10/2023]
Abstract
RATIONALE Changes in lipid composition might be associated with the onset and progression of various neurodegenerative diseases. Herein, we investigated the changes in the plasma phosphatidylcholine (PC)/lysophosphatidylcholine (LPC) ratios in patients with Parkinson's disease (PD) in comparison with healthy subjects and their correlation with clinico-pathological features. METHODS The study included 10 controls and 25 patients with PD. All patients were assigned to groups based on clinico-pathological characteristics (gender, age at examination, duration of disease and Hoehn and Yahr (H&Y) stage). The analysis of the PC/LPC intensity ratios in plasma lipid extracts was performed using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. RESULTS PD patients exhibited an increased PC/LPC intensity ratio in comparison with the control group of healthy subjects. Furthermore, the investigated ratio was shown to be correlated with clinico-pathological parameters, in particular with H&Y stage and disease duration. The PC/LPC intensity ratio in plasma samples of PD patients was found to be elevated in all examined H&Y stages and throughout the disease duration. CONCLUSIONS To our knowledge, this is the first study examining the PC/LPC ratios in plasma of patients with PD and illustrating their correlation with clinico-pathological features. Although the presented results may be considered as preliminary due to the limited number of participants, the observed alterations of PC/LPC ratios in plasma might be a first step in the characterization of plasma lipid changes in PD patients and an indicator of lipid reconfiguration.
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Affiliation(s)
- Jadranka Miletić Vukajlović
- Department of Physical Chemistry, VINČA Institute of Nuclear Sciences - University of Belgrade, Belgrade, Republic of Serbia
| | - Dunja Drakulić
- Department of Molecular Biology and Endocrinology, VINČA Institute of Nuclear Sciences - University of Belgrade, Belgrade, Republic of Serbia
| | - Snežana Pejić
- Department of Molecular Biology and Endocrinology, VINČA Institute of Nuclear Sciences - University of Belgrade, Belgrade, Republic of Serbia
| | - Tihomir V Ilić
- Medical Faculty of Medical Military Academy, Clinic of Neurology, University of Defense, Belgrade, Republic of Serbia
| | - Aleksandra Stefanović
- Department of Medical Biochemistry, Faculty of Pharmacy - University of Belgrade, Belgrade, Republic of Serbia
| | - Marijana Petković
- Madeira Chemistry Research Centre, University of Madeira, Funchal, Portugal
- Department of Atomic Physics, VINČA Institute of Nuclear Sciences - University of Belgrade, Belgrade, Republic of Serbia
| | - Jürgen Schiller
- Institute of Medical Physics and Biophysics, Medical Department, University of Leipzig, Leipzig, Germany
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14
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Chong Y, Ren Q, Li Y, Li C, Feng F, Zhou Y. Biomarkers for Prediction of Cardiovascular Events in Community-Dwelling Adults Aged 40 or Older. Int Heart J 2020; 61:109-114. [DOI: 10.1536/ihj.19-240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Yingzhi Chong
- School of Public Health, North China University of Science and Technology
| | - Qi Ren
- School of Public Health, North China University of Science and Technology
| | - Yuhong Li
- School of Public Health, North China University of Science and Technology
| | - Chaoran Li
- School of Public Health, North China University of Science and Technology
| | - Fumin Feng
- School of Public Health, North China University of Science and Technology
- Medical Experiment Center, North China University of Science and Technology
| | - Yong Zhou
- Sanbo Brain Institute, Sanbo Brain Hospital, Capital Medical University
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15
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Santoso A, Heriansyah T, Rohman MS. Phospholipase A2 is an Inflammatory Predictor in Cardiovascular Diseases: Is there any Spacious Room to Prove the Causation? Curr Cardiol Rev 2020; 16:3-10. [PMID: 31146670 PMCID: PMC7393598 DOI: 10.2174/1573403x15666190531111932] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 05/01/2019] [Accepted: 05/05/2019] [Indexed: 12/17/2022] Open
Abstract
Lipoprotein-associated phospholipase A2 (Lp-PLA2) is an enzyme family of phospholipase A2 produced by the inflammatory cell in atherosclerotic plaque. It is transported in the circulation, attached mainly to low-density lipoprotein-cholesterol (LDL-C). It hydrolyzes glycerophospholipids particularly fatty acids at the sn-2 position and produces numerous bioactive lipids; and leads to endothelial dysfunction, atherosclerotic plaque inflammation, and development of the necrotic core in plaques. There are two kinds of phospholipase A2, namely: secretory phospholipase A2 (sPLA2) and Lp- PLA2. They are deemed as evolving predictors of cardiovascular disease (CVD) risk in hospitaland population-based studies, including healthy subjects, acute coronary syndromes (ACS) and patients with CVD. Unfortunately, Lp-PLA2 inhibitor (darapladib) and s-PLA2 inhibitor (varespladib methyl) failed to prove to lower the risk of composite CVD mortality, myocardial infarction and stroke in those with stable CVD and ACS. Herein, we describe the explanation based on the existing data why there is still a discrepancy among them. So, it highlights the opinion that phospholipase A2 is merely the inflammatory biomarkers of CVD and playing an important role in atherosclerosis. Further, there is more spacious room to prove the causation.
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Affiliation(s)
- Anwar Santoso
- Address correspondence to this author at the Department of Cardiology and Vascular Medicine, National Cardiovascular Centre, Harapan Kita Hospital, Universitas Indonesia, Jakarta, Indonesia; Tel: +62 21 5684093;
E-mail:
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16
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Ntzouvani A, Giannopoulou E, Fragopoulou E, Nomikos T, Antonopoulou S. Energy Intake and Plasma Adiponectin as Potential Determinants of Lipoprotein-Associated Phospholipase A 2 Activity: A Cross-Sectional Study. Lipids 2019; 54:629-640. [PMID: 31489677 DOI: 10.1002/lipd.12191] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 08/05/2019] [Accepted: 08/12/2019] [Indexed: 12/15/2022]
Abstract
Lipoprotein-associated phospholipase A2 (Lp-PLA2 ) is associated with increased risk of cardiovascular diseases (CVD) and type 2 diabetes mellitus. Lp-PLA2 activity is positively associated with male sex, Caucasian race, the presence of metabolic syndrome (MetS) and low-density lipoprotein (LDL)-cholesterol, but it is negatively associated with high-density lipoprotein (HDL)-cholesterol. Associations with other cardiometabolic risk factors, inflammation markers, and lifestyle factors are few or inconsistent. We investigated potential determinants of Lp-PLA2 activity among both nonmodifiable and modifiable CVD risk factors in a middle-aged Greek cohort without overt CVD. Two hundred eighty four subjects (159 men, 53 ± 9 years and 125 women 52 ± 9 years) participated in a cross-sectional study carried out during 2011-2012 in Athens, Attica. Cardiometabolic risk factors, inflammation markers, lifestyle factors, and Lp-PLA2 activity were evaluated with established methods. The American Heart Association/National Heart, Lung, and Blood Institute (AHA/NHLBI) criteria were used to define MetS. Lp-PLA2 activity was not associated with MetS, but was associated with MetS components, markers of liver function, and macronutrient intake. Increased total energy intake was associated with increased Lp-PLA2 activity (odds ratio, 95% confidence interval: 1.07, 1.01-1.14 and 1.10, 1.03-1.16 for the 4th and 3rd quartiles, respectively, compared to the 1st quartile) after adjustments for sex, pack-years of smoking, LDL-cholesterol, and statin treatment. Adiponectin tended to be inversely associated with Lp-PLA2 activity (0.91, 0.82-1.00, and 4th versus 1st quartile). Our results suggested that total energy intake and adiponectin levels are potential determinants of Lp-PLA2 activity.
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Affiliation(s)
- Agathi Ntzouvani
- Department of Nutrition and Dietetics, School of Health Science and Education, Harokopio University, Eleftheriou Venizelou 70, Athens, 17671, Greece
| | - Efstathia Giannopoulou
- Department of Nutrition and Dietetics, School of Health Science and Education, Harokopio University, Eleftheriou Venizelou 70, Athens, 17671, Greece
| | - Elizabeth Fragopoulou
- Department of Nutrition and Dietetics, School of Health Science and Education, Harokopio University, Eleftheriou Venizelou 70, Athens, 17671, Greece
| | - Tzortzis Nomikos
- Department of Nutrition and Dietetics, School of Health Science and Education, Harokopio University, Eleftheriou Venizelou 70, Athens, 17671, Greece
| | - Smaragdi Antonopoulou
- Department of Nutrition and Dietetics, School of Health Science and Education, Harokopio University, Eleftheriou Venizelou 70, Athens, 17671, Greece
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Lu M, Lv L. Performance Characteristics and Clinical Value of the Lipoprotein-Associated Phospholipase A2 by an Enzymatic Kinetic Method. Lab Med 2019; 50:273-278. [PMID: 30770710 DOI: 10.1093/labmed/lmy086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 10/09/2018] [Accepted: 12/27/2018] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To analyze the performance characteristics, stability, and clinical value of lipoprotein-associated phospholipase A2 (Lp-PLA2) using an enzymatic kinetic method. METHODS The performance characteristics included reference intervals, precision, and accuracy. We assessed Lp-PLA2 stability by comparing Lp-PLA2 changes under different conditions. Lp-PLA2 was determined in the following groups: control individuals, patients with coronary heart disease (CHD), patients of different lipid subgroups within CHD, and patients with high total cholesterol (TC). Also, correlations between Lp-PLA2 and traditional cardiovascular risk factors were assessed. RESULTS The mean (SD) reference interval of serum Lp-PLA2 activity was 451 (113) U per L with sex differences. Inter- and intra-assay precision revealed coefficients of variance (CVs) of 1.81% to 2.63% and 1.43% to 1.77%. The average bias was 0.33%. Lp-PLA2 activity was stable. In the CHD group, high-lipid subgroups, and high-TC group, Lp-PLA2 was elevated, and correlation was observed between Lp-PLA2 and traditional risk factors. CONCLUSION Lp-PLA2 activity has important clinical value in CHD.
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Affiliation(s)
- Mengli Lu
- Clinical Laboratory, First Affiliated Hospital, Anhui Medical University, Hefei, People's Republic of China
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Wang D, Guo X, Hou L, Cheng X, You T, Li H, Xia L, Yin Y, Yu S, Qiu L. Measuring lipoprotein-associated phospholipase A2 activity in China: Protocol comparison and recalibration. J Clin Lab Anal 2018; 33:e22628. [PMID: 30043502 DOI: 10.1002/jcla.22628] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 06/23/2018] [Accepted: 07/03/2018] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Lp-PLA2 is a novel inflammation marker in cardiovascular disease. While several manufactures have registered Lp-PLA2 activity reagents, few studies have investigated the consistency among these assays. In this study, we compared and recalibrated Lp-PLA2 activity assays. METHODS Serum samples from 110 patients and 140 healthy individuals were collected for method comparison and reference interval validation, respectively. Fresh human serum pools (847 and 442 U/L) were used for recalibration. Lp-PLA2 activity was analyzed using all five assays with a Beckman AU 5800 analyzer. Passing-Bablok regression equations and Bland-Altman plots were used to estimate the relationship and bias among the results. A 2.5% confidence interval (CI) and 97.5% CI were used to establish a laboratory reference interval. RESULTS Assay imprecision varied from 0.8%-2.9%, while the overall coincidence rates ranged from 75.5%-98.2%. Passing-Bablok regression shows excellent linear correlation between Evermed and Diasys (R2 = 0.999), while that between Diazyme and Evermed was poor (R2 = 0.846). The R2 and correlation coefficient r among assays were 0.846-0.999 and 0.8947-0.9993, respectively. The mean bias percentages ranged from -71.5%-1.6% and -2.0%-11.6% before and after recalibration. As Diazyme and Diasys were not comparable, the Diazyme assay was not recalibrated. The reference intervals determined for Diasys, Evermed, Hengxiao, and Zybio were 184-605, 208-704, 81-328, and 273-696 U/L, respectively. CONCLUSIONS Our results indicate that recalibration increased assay agreement and also highlight the need for each laboratory to establish its own reference interval for Lp-PLA2 activity.
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Affiliation(s)
- Danchen Wang
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing, China
| | - Xiuzhi Guo
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing, China
| | - Li'an Hou
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing, China
| | - Xinqi Cheng
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing, China
| | - Tingting You
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing, China
| | - Honglei Li
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing, China
| | - Liangyu Xia
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing, China
| | - Yicong Yin
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing, China
| | - Songlin Yu
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing, China
| | - Ling Qiu
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Peking Union Medical College & Chinese Academy of Medical Science, Beijing, China
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Shen H, Wu D, Wang S, Zhao M, Sun W, Zhu X, Zhang N, Yao H, Cui Q, Xiao H. Atypical Antipsychotic Administration in Schizophrenic Patients Leads to Elevated Lipoprotein-Associated Phospholipase A2 Levels and Increased Cardiovascular Risk: A Retrospective Cohort Study. Basic Clin Pharmacol Toxicol 2018; 123:756-765. [PMID: 29938908 DOI: 10.1111/bcpt.13079] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 06/13/2018] [Indexed: 12/31/2022]
Abstract
The prevalence of cardiovascular disease (CVD) is higher in patients with schizophrenia than in the general population. We aimed to investigate whether atypical antipsychotics (AAP) increase the levels of lipoprotein-associated phospholipase A2 (Lp-PLA2), thereby increasing the risk of CVD. The data were from inpatients aged 18-60 years with a diagnosis of schizophrenia according to ICD-10 at the Affiliated Brain Hospital of Nanjing Medical University who underwent physical examination between 1 October 2014 and 30 September 2016. A retrospective cohort study was used to analyse the correlation between AAP, Lp-PLA2 levels and the CVD risk (it was determined that Lp-PLA2 values >200 ng/mL were defined as high CVD risk) in patients treated with monotherapy, olanzapine, clozapine or quetiapine. Data were collected for 452 patients with eligible schizophrenia: 163 treated with clozapine, 186 treated with olanzapine, 47 treated with quetiapine and 56 receiving no medication. Compared with the no-medication patients, AAP administration in patients with olanzapine, clozapine or quetiapine had higher serum Lp-PLA2 levels when age, sex, BMI and fasting glucose level were matched. AAP were significantly associated with serum Lp-PLA2 level by Spearman's correlation coefficients. The results of logistic regression analysis showed that AAP administration was an independent factor of CVD risk when adjusted by potential confounding factors. This study is the first to confirm that AAP administration, especially clozapine and olanzapine, could increase Lp-PLA2 levels and CVD risk, independent of drug-induced weight gain in schizophrenia. The extent and the factors of increasing Lp-PLA2 level and CVD risk in olanzapine, clozapine and quetiapine are discrepant. The possible effects of AAP on Lp-PLA2 in schizophrenia patients are involved in pro-inflammatory cytokines and hormones.
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Affiliation(s)
- Hong Shen
- Neuro-Psychiatric Institute, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Danyang Wu
- Department of Pharmacy, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Shanshan Wang
- Department of Pharmacy, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Mengjie Zhao
- Neuro-Psychiatric Institute, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Wenbo Sun
- Neuro-Psychiatric Institute, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Xiaozhou Zhu
- Neuro-Psychiatric Institute, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Ning Zhang
- Department of Medical Psychology, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Hui Yao
- Department of Psychiatry, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Qing Cui
- Department of Psychiatry, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
| | - Hong Xiao
- Neuro-Psychiatric Institute, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, China
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20
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Peck MJ, Sanders EB, Scherer G, Lüdicke F, Weitkunat R. Review of biomarkers to assess the effects of switching from cigarettes to modified risk tobacco products. Biomarkers 2018; 23:213-244. [PMID: 29297706 DOI: 10.1080/1354750x.2017.1419284] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Context: One approach to reducing the harm caused by cigarette smoking, at both individual and population level, is to develop, assess and commercialize modified risk alternatives that adult smokers can switch to. Studies to demonstrate the exposure and risk reduction potential of such products generally involve the measuring of biomarkers, of both exposure and effect, sampled in various biological matrices.Objective: In this review, we detail the pros and cons for using several biomarkers as indicators of effects of changing from conventional cigarettes to modified risk products.Materials and methods: English language publications between 2008 and 2017 were retrieved from PubMed using the same search criteria for each of the 25 assessed biomarkers. Nine exclusion criteria were applied to exclude non-relevant publications.Results: A total of 8876 articles were retrieved (of which 7476 were excluded according to the exclusion criteria). The literature indicates that not all assessed biomarkers return to baseline levels following smoking cessation during the study periods but that nine had potential for use in medium to long-term studies.Discussion and conclusion: In clinical studies, it is important to choose biomarkers that show the biological effect of cessation within the duration of the study.
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Affiliation(s)
| | | | | | - Frank Lüdicke
- Research & Development, Philip Morris International, Neuchâtel, Switzerland
| | - Rolf Weitkunat
- Research & Development, Philip Morris International, Neuchâtel, Switzerland
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21
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De Stefano A, Mannucci L, Massoud R, Bernardini S, Cortese C. Performance characteristics of lipoprotein-associated phospholipase A2 activity assay on the Dimension Vista analyser and preliminary study of a healthy Italian population. Biochem Med (Zagreb) 2017; 27:030701. [PMID: 28900364 PMCID: PMC5575650 DOI: 10.11613/bm.2017.030701] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Accepted: 07/22/2017] [Indexed: 12/15/2022] Open
Abstract
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. Inhibitor (Darapladib) effect was also evaluated. Lp-PLA2 activity was measured in 250 healthy donors (123 males, 127 females, aged 18-70 years). Central 95% RIs were established using nonparametric statistics. Results Intra-assay and inter-assay precision showed CVs of 0.6% - 1.4% and 0.9% - 2.0%, respectively. Linearity replicates showed R2 > 0.98. Limit of quantitation was 5.8 U/L (CV = 9.4%). Bland Altman plot showed bias - 0.9, 95% limits of agreement -6.5 - 4.72. Passing-Bablok regression showed excellent correlation (Slope = 1.02, 95% CI: 1.01 to 1.03; Intercept = - 1.86, 95% CI: - 3.08 to - 1.26; R2 = 0.999). No “hook effect” was observed at Lp-PLA2 activities ≤ 1000 U/L. Average Lp-PLA2 activity in 250 healthy donors was 182 ± 44 U/L (mean ± SD). Males showed statistically significant higher activities than females (P < 0.001). RIs were 107 - 265 U/L for males and 84 - 225 U/L for females. Moderate significant correlation (r = 0.29, P < 0.001) was found between Lp-PLA2 activity and total cholesterol. Conclusions The PLAC® Activity Test shows very good performance characteristics on Dimension Vista® 1500.
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Affiliation(s)
- Alessandro De Stefano
- Department of Experimental Medicine and Surgery, University of Rome Tor Vergata, Rome, Italy
| | - Liliana Mannucci
- Department of Experimental Medicine and Surgery, University of Rome Tor Vergata, Rome, Italy
| | - Renato Massoud
- Department of Experimental Medicine and Surgery, University of Rome Tor Vergata, Rome, Italy
| | - Sergio Bernardini
- Department of Experimental Medicine and Surgery, University of Rome Tor Vergata, Rome, Italy
| | - Claudio Cortese
- Department of Experimental Medicine and Surgery, University of Rome Tor Vergata, Rome, Italy
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Prasad A, Clopton P, Ayers C, Khera A, de Lemos JA, Witztum JL, Tsimikas S. Relationship of Autoantibodies to MDA-LDL and ApoB-Immune Complexes to Sex, Ethnicity, Subclinical Atherosclerosis, and Cardiovascular Events. Arterioscler Thromb Vasc Biol 2017; 37:1213-1221. [PMID: 28473443 PMCID: PMC5500201 DOI: 10.1161/atvbaha.117.309101] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 04/18/2017] [Indexed: 01/09/2023]
Abstract
OBJECTIVE Modifications of lipid constituents within atherosclerotic lesions generate neoepitopes that activate innate and adaptive immune responses. We aimed to define the prevalence, distribution, and relationship of autoantibody titers of oxidized lipoproteins to subclinical atherosclerosis and major adverse cardiovascular events (MACE) in different ethnic groups. APPROACH AND RESULTS IgG and IgM autoantibodies to malondialdehyde-modified low-density lipoprotein (MDA-LDL) and apolipoprotein B-100-immune complexes were measured in 3509 individuals (1814 blacks, 1031 whites, 589 Hispanics, and 85 no race identifier) from the Dallas Heart Study with median 10.5-year follow-up. Coronary artery calcium score, abdominal aortic plaque by magnetic resonance imaging, and MACE were quantified. IgG MDA-LDL and IgG and IgM apolipoprotein B-100-immune complexes were significantly different between groups, with blacks having the highest levels of IgG MDA-LDL and IgG apolipoprotein B-100-immune complexes and Hispanics having the highest levels of IgM apolipoprotein B-100-immune complexes (P<0.001 for all). IgGs tended to be higher and IgMs lower with age for all markers. In multivariable-adjusted binary logistic regression analysis, a doubling of IgG MDA-LDL levels was associated with prevalent coronary artery calcium score >10 Agatston units (odds ratio [95% confidence interval], 1.21 [1.07-1.36]; P=0.002). Multivariable-adjusted Cox regression analysis revealed that IgG MDA-LDL was independently associated with time to incident MACE in the entire group (hazard ratio [95% confidence interval], 1.76 [1.16-2.72]; P=0.009 for fourth versus first quartile). This effect was particularly prominent in black subjects (hazard ratio [95% confidence interval], 2.52 [1.39-4.57]; P=0.002). CONCLUSIONS Autoantibodies to oxidized lipoproteins and immune complexes with apoB-100 lipoproteins vary significantly by sex, age, and ethnicity. Higher baseline IgG MDA-LDL titers independently associate with new MACE. These findings may contribute to the understanding of differences in ethnic-specific MACE events.
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Affiliation(s)
- Anand Prasad
- From the Division of Cardiology, Department of Medicine, The University of Texas Health Science Center San Antonio (A.P.); Veterans Affairs Medical Center, San Diego, CA (P.C.); Division of Cardiology, University of Texas Southwestern Medical Center at Dallas (C.A., A.K., J.A.d.L.); Division of Endocrinology and Metabolism (J.L.W.) and Department of Medicine (S.T.), University of California San Diego, La Jolla; and Division of Cardiovascular Diseases, Sulpizio Cardiovascular Center, La Jolla, CA (S.T.)
| | - Paul Clopton
- From the Division of Cardiology, Department of Medicine, The University of Texas Health Science Center San Antonio (A.P.); Veterans Affairs Medical Center, San Diego, CA (P.C.); Division of Cardiology, University of Texas Southwestern Medical Center at Dallas (C.A., A.K., J.A.d.L.); Division of Endocrinology and Metabolism (J.L.W.) and Department of Medicine (S.T.), University of California San Diego, La Jolla; and Division of Cardiovascular Diseases, Sulpizio Cardiovascular Center, La Jolla, CA (S.T.)
| | - Colby Ayers
- From the Division of Cardiology, Department of Medicine, The University of Texas Health Science Center San Antonio (A.P.); Veterans Affairs Medical Center, San Diego, CA (P.C.); Division of Cardiology, University of Texas Southwestern Medical Center at Dallas (C.A., A.K., J.A.d.L.); Division of Endocrinology and Metabolism (J.L.W.) and Department of Medicine (S.T.), University of California San Diego, La Jolla; and Division of Cardiovascular Diseases, Sulpizio Cardiovascular Center, La Jolla, CA (S.T.)
| | - Amit Khera
- From the Division of Cardiology, Department of Medicine, The University of Texas Health Science Center San Antonio (A.P.); Veterans Affairs Medical Center, San Diego, CA (P.C.); Division of Cardiology, University of Texas Southwestern Medical Center at Dallas (C.A., A.K., J.A.d.L.); Division of Endocrinology and Metabolism (J.L.W.) and Department of Medicine (S.T.), University of California San Diego, La Jolla; and Division of Cardiovascular Diseases, Sulpizio Cardiovascular Center, La Jolla, CA (S.T.)
| | - James A de Lemos
- From the Division of Cardiology, Department of Medicine, The University of Texas Health Science Center San Antonio (A.P.); Veterans Affairs Medical Center, San Diego, CA (P.C.); Division of Cardiology, University of Texas Southwestern Medical Center at Dallas (C.A., A.K., J.A.d.L.); Division of Endocrinology and Metabolism (J.L.W.) and Department of Medicine (S.T.), University of California San Diego, La Jolla; and Division of Cardiovascular Diseases, Sulpizio Cardiovascular Center, La Jolla, CA (S.T.)
| | - Joseph L Witztum
- From the Division of Cardiology, Department of Medicine, The University of Texas Health Science Center San Antonio (A.P.); Veterans Affairs Medical Center, San Diego, CA (P.C.); Division of Cardiology, University of Texas Southwestern Medical Center at Dallas (C.A., A.K., J.A.d.L.); Division of Endocrinology and Metabolism (J.L.W.) and Department of Medicine (S.T.), University of California San Diego, La Jolla; and Division of Cardiovascular Diseases, Sulpizio Cardiovascular Center, La Jolla, CA (S.T.)
| | - Sotirios Tsimikas
- From the Division of Cardiology, Department of Medicine, The University of Texas Health Science Center San Antonio (A.P.); Veterans Affairs Medical Center, San Diego, CA (P.C.); Division of Cardiology, University of Texas Southwestern Medical Center at Dallas (C.A., A.K., J.A.d.L.); Division of Endocrinology and Metabolism (J.L.W.) and Department of Medicine (S.T.), University of California San Diego, La Jolla; and Division of Cardiovascular Diseases, Sulpizio Cardiovascular Center, La Jolla, CA (S.T.).
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23
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Rauschert S, Uhl O, Koletzko B, Mori TA, Beilin LJ, Oddy WH, Hellmuth C. Sex differences in the association of phospholipids with components of the metabolic syndrome in young adults. Biol Sex Differ 2017; 8:10. [PMID: 28360990 PMCID: PMC5371176 DOI: 10.1186/s13293-017-0131-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 03/14/2017] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND There are differences in the prevalence and severity of diseases between males, females not taking hormonal contraceptives (non-HC females) and females taking hormonal contraceptives (HC females). The aim of this study was to identify sex-specific differences in the metabolome and its relation to components of the metabolic syndrome in a young adult population. METHODS The subjects analysed are from the 20-year follow-up of the Western Australian Pregnancy Cohort (Raine) Study. Two hundred fifteen plasma metabolites were analysed in 1021 fasted plasma samples by a targeted liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS) metabolomics approach. Principal component analysis between males (n = 550), non-HC females (n = 199) and HC females (n = 269) was applied. Regression analysis with a sex × metabolite concentration interaction was performed on components of the MetS, namely waist circumference, systolic blood pressure, and plasma HDL-C, triglycerides and glucose concentration, as outcome to select the significant metabolites of the interaction. Those selected metabolites were used as predictors in a sex group stratified analysis to compare the different β coefficients and therefore the sex group-dependent associations. RESULTS Principal component analysis between males, non-HC females, and HC females showed a general discriminating trend between males and HC females. One hundred twenty-seven metabolites were significantly different between males and non-HC females, whereas 97 differed between non-HC females and HC females. Males and non-HC females mainly differed in sphingomyelin, lyso-phosphatidylcholine, acyl-carnitine and amino acid species, whilst non-HC females and HC females mainly differed in phosphatidylcholine, lyso-phosphatidylcholine and acyl-carnitine concentrations. Forty-one metabolites (phosphatidylcholines, sphingomyelines, lyso-phosphatidylcholine) were significantly differently associated with the MetS factors in the different groups. CONCLUSIONS We have shown clear differences between plasma metabolite concentrations in males, and HC or non-HC females, especially in lyso-phosphatidylcholine, sphingomyelin and phosphatidylcholine, which have been shown to associate with obesity in other studies. The association of these metabolites differed between sexes with components of the metabolic syndrome, which means that development of diseases like obesity and diabetes may differ between the sexes. Our findings highlight the importance of considering sex differences when conducting a metabolomics study and the need to account for the effect of HC usage in females in future studies.
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Affiliation(s)
- Sebastian Rauschert
- Ludwig-Maximilian Universität München, Dr. von Hauner Children's Hospital, University of Munich Medical Center, Lindwurmstr. 4, D-80337 München, Germany
| | - Olaf Uhl
- Ludwig-Maximilian Universität München, Dr. von Hauner Children's Hospital, University of Munich Medical Center, Lindwurmstr. 4, D-80337 München, Germany
| | - Berthold Koletzko
- Ludwig-Maximilian Universität München, Dr. von Hauner Children's Hospital, University of Munich Medical Center, Lindwurmstr. 4, D-80337 München, Germany
| | - Trevor A Mori
- School of Medicine and Pharmacology, Royal Perth Hospital Unit, University of Western Australia, Perth, Western Australia 6000 Australia
| | - Lawrence J Beilin
- School of Medicine and Pharmacology, Royal Perth Hospital Unit, University of Western Australia, Perth, Western Australia 6000 Australia
| | - Wendy H Oddy
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania 7000 Australia.,Telethon Kids institute, The University of Western Australia, Perth, Western Australia 6009 Australia
| | - Christian Hellmuth
- Ludwig-Maximilian Universität München, Dr. von Hauner Children's Hospital, University of Munich Medical Center, Lindwurmstr. 4, D-80337 München, Germany
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24
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Garg PK, Jorgensen NW, McClelland RL, Jenny NS, Criqui MH, Allison MA, Greenland P, Rosenson RS, Siscovick DS, Cushman M. Lipoprotein-associated phospholipase A 2 and risk of incident peripheral arterial disease in a multi-ethnic cohort: The Multi-Ethnic Study of Atherosclerosis. Vasc Med 2016; 22:5-12. [PMID: 28215109 DOI: 10.1177/1358863x16671424] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Prospective studies supporting a relationship between elevated lipoprotein-associated phospholipase A2 (Lp-PLA2) and incident peripheral arterial disease (PAD) are limited. We evaluated the association of Lp-PLA2 with incident PAD in a multi-ethnic cohort without clinical cardiovascular disease. A total of 4622 participants with measurement of Lp-PLA2 mass and Lp-PLA2 activity and an ankle-brachial index (ABI) between 0.9 and 1.4 were followed for the development of PAD (median follow-up = 9.3 years), defined as an ABI ⩽0.9 and decline from baseline ⩾0.15. There were 158 incident PAD events during follow-up. In adjusted logistic regression models, each higher standard deviation of both Lp-PLA2 activity and mass did not confer an increased risk of developing PAD [odds ratios, (95% confidence intervals)]: 0.92 (0.66-1.27) for Lp-PLA2 activity and 1.06 (0.85-1.34) for mass. Additionally, no significant interaction was found according to ethnicity: p=0.43 for Lp-PLA2 activity and p=0.55 for Lp-PLA2 mass. We found no evidence of an association between Lp-PLA2 and incident PAD.
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Affiliation(s)
- Parveen K Garg
- 1 Division of Cardiovascular Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Neal W Jorgensen
- 2 Department of Biostatistics, University of Washington, Seattle, WA, USA
| | - Robyn L McClelland
- 2 Department of Biostatistics, University of Washington, Seattle, WA, USA
| | - Nancy S Jenny
- 3 Department of Pathology and Laboratory Medicine, University of Vermont College of Medicine, Burlington, VT, USA
| | - Michael H Criqui
- 4 Department of Family Medicine & Public Health, University of California in San Diego, La Jolla, CA, USA
| | - Matthew A Allison
- 4 Department of Family Medicine & Public Health, University of California in San Diego, La Jolla, CA, USA
| | - Philip Greenland
- 5 Department of Medicine, Northwestern University, Chicago, IL, USA.,6 Department of Preventive Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Robert S Rosenson
- 7 Mount Sinai Heart, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | | | - Mary Cushman
- 3 Department of Pathology and Laboratory Medicine, University of Vermont College of Medicine, Burlington, VT, USA.,9 Department of Medicine, University of Vermont College of Medicine, Burlington, VT, USA
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25
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Benderly M, Sapir B, Kalter-Leibovici O, Zimlichman R. Lipoprotein-associated phospholipase A 2, and subsequent cardiovascular events and mortality among patients with coronary heart disease. Biomarkers 2016; 22:219-224. [PMID: 27097870 DOI: 10.3109/1354750x.2016.1171910] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE The objective of this study is to evaluate the relevance of Lp-PLA2 to risk prediction among coronary heart disease (CHD) patients. METHODS Lp-PLA2 activity was measured in 2538 CHD patients included in the Bezafibrate Infarction Prevention (BIP) study. RESULTS Adjusting for patient characteristics and traditional risk factors, 1 standard deviation of Lp-PLA2 was associated with a hazard ratio (HR) of 1.12 (95% confidence interval (CI): 1.00-1.25) for mortality and 1.03 (0.93-1.14) for cardiovascular events. Lp-PLA2 did not significantly improve model discrimination, or calibration nor result in noteworthy reclassification. CONCLUSIONS Our results do not support added value of Lp-PLA2 for predicting cardiovascular events or mortality among CHD patients beyond traditional risk factor.
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Affiliation(s)
- Michal Benderly
- a Cardiovascular Epidemiology Unit , Gertner Institute for Epidemiology and Health Policy Research, Sheba Medical Center , Ramat-Gan , Israel.,b Department of Epidemiology and Preventive Medicine , School of Public Health Sackler Faculty of Medicine, Tel Aviv University , Tel Aviv , Israel
| | - Batya Sapir
- b Department of Epidemiology and Preventive Medicine , School of Public Health Sackler Faculty of Medicine, Tel Aviv University , Tel Aviv , Israel
| | - Ofra Kalter-Leibovici
- a Cardiovascular Epidemiology Unit , Gertner Institute for Epidemiology and Health Policy Research, Sheba Medical Center , Ramat-Gan , Israel.,b Department of Epidemiology and Preventive Medicine , School of Public Health Sackler Faculty of Medicine, Tel Aviv University , Tel Aviv , Israel
| | - Reuven Zimlichman
- c Department of Medicine and the Brunner Institute for Cardiovascular Research, Sackler Faculty of Medicine , Tel Aviv University, Tel Aviv; Edith Wolfson Medical Center , Holon , Israel
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Haghdoost F, Gharzi M, Faez F, Hosseinzadeh E, Tajaddini M, Rafiei L, Asgari F, Banihashemi M, Masjedi SS, Zandifar A, Haghjooy-Javanmard S. Association between Ala379Val polymorphism of lipoprotein-associated phospholipase A2 and migraine without aura in Iranian population. IRANIAN JOURNAL OF NEUROLOGY 2016; 15:80-4. [PMID: 27326362 PMCID: PMC4912673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
BACKGROUND Migraine is a common neurovascular disorder with multifactorial and polygenic inheritance. The aim of this study was to investigate the association of a migraine without aura and Ala379Val polymorphism of lipoprotein-associated phospholipase A2 (Lp-PLA2) gene in the Iranian population. METHODS In this study, 103 migraine patients and 100 healthy controls were enrolled. DNA samples were extracted and the Ala379Val polymorphism of Lp-PLA2 gene was investigated. To assess severity of a headache, patients filled out the headache impact test (HIT-6) and migraine severity (MIGSEV) questionnaires. RESULTS Allele V had significantly lower frequency in the case group than control subjects [P = 0.001, odds ratio (OR) = 0.25, confidence interval (CI): 0.15-0.40]. The frequency of migraine patients that were a carrier of V allele (V/V and A/V) was statistically significant lower than the control group (P = 0.003, OR = 2.39, CI: 1.35-4.23). There was no significant difference of alleles frequency between three grades of MIGSEV (P = 0.316). Furthermore, total HIT-6 score was not significantly different between different genotypes (P = 0.466). CONCLUSION Our results showed that Ala379Val gene polymorphism of LP-PLA2 is associated with lower risk of migraine but not with severity of headaches in an Iranian population.
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Affiliation(s)
- Faraidoon Haghdoost
- Medical Student Research Center AND Physiology Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mahsa Gharzi
- Medical Student Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Farough Faez
- Pharmacy Student Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Elinaz Hosseinzadeh
- Medical Student Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | | | - Laleh Rafiei
- Physiology Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Fatemeh Asgari
- Medical Student Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mahboobeh Banihashemi
- Medical Student Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Samaneh Sadat Masjedi
- Medical Student Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Alireza Zandifar
- Medical Student Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
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Donato LJ, Meeusen JW, Callanan H, Saenger AK, Jaffe AS. Advantages of the lipoprotein-associated phospholipase A2 activity assay. Clin Biochem 2015; 49:172-5. [PMID: 26365697 DOI: 10.1016/j.clinbiochem.2015.09.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 09/03/2015] [Accepted: 09/08/2015] [Indexed: 10/23/2022]
Abstract
OBJECTIVES Lipoprotein-associated phospholipase A2 (Lp-PLA2) is increased in circulation in patients at higher risk of coronary heart disease (CHD) events and stroke. Therefore, measurement of Lp-PLA2 can be used as an adjunct to traditional cardiovascular risk factors for identifying individuals at higher risk of cardiovascular events. Recently, a reagent for measuring Lp-PLA2 activity (diaDexus, San Francisco, CA) received FDA approval. Here we evaluate the assay performance of the Lp-PLA2 activity assay. METHODS Lp-PLA2 activity assay reagent performance was evaluated on an open user-defined channel on a Cobas 6000/c501 (Roche Diagnostics, Indianapolis, IN) using a 5-point calibration curve (0-400nmol/min/mL). Analytical performance was established for the following parameters: precision, linearity, accuracy, analytical sensitivity, analytical specificity, reference interval, reagent lot-to-lot comparison, specimen type, on-board reagent stability, and sample stability. RESULTS Assay limit of detection was determined to be 7.8nmol/min/mL with an average %CV of 2.8%. Precision studies revealed a coefficient of variation ≤1.6% between 79 and 307nmol/min/mL and accuracy was demonstrated between 4.8-368.7nmol/min/mL. Comparable results were generated in paired SST serum and EDTA plasma. No age association was found with Lp-PLA2 activity at the 95th percentile however a gender association was identified resulting in gender-specific 95th percentile limits in a healthy reference population. No bias was found when comparing results from several different lots of assay reagent. Lp-PLA2 activity results are extremely stable in both serum and EDTA plasma under refrigerate and frozen storage conditions up to 31days. CONCLUSIONS Lp-PLA2 activity assay displays accurate and precise performance characteristics on the Cobas c501 platform. The assay performance is significantly improved over the predecessor immunoassay allowing for adoption of Lp-PLA2 activity in clinical practice.
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Affiliation(s)
- Leslie J Donato
- Department of Laboratory Medicine and Pathology Mayo Clinic, Rochester, MN 55905, United States.
| | - Jeffrey W Meeusen
- Department of Laboratory Medicine and Pathology Mayo Clinic, Rochester, MN 55905, United States
| | - Heidi Callanan
- Department of Laboratory Medicine and Pathology Mayo Clinic, Rochester, MN 55905, United States
| | - Amy K Saenger
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN 55455, United States
| | - Allan S Jaffe
- Department of Laboratory Medicine and Pathology Mayo Clinic, Rochester, MN 55905, United States; Division of Cardiology, Mayo Clinic, Rochester, MN 55905, United States
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Tsimikas S, Duff GW, Berger PB, Rogus J, Huttner K, Clopton P, Brilakis E, Kornman KS, Witztum JL. Pro-inflammatory interleukin-1 genotypes potentiate the risk of coronary artery disease and cardiovascular events mediated by oxidized phospholipids and lipoprotein(a). J Am Coll Cardiol 2014; 63:1724-34. [PMID: 24530664 PMCID: PMC4008715 DOI: 10.1016/j.jacc.2013.12.030] [Citation(s) in RCA: 102] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2013] [Revised: 12/03/2013] [Accepted: 12/04/2013] [Indexed: 12/13/2022]
Abstract
OBJECTIVES The aim of this study was to assess the influence of pro-inflammatory interleukin (IL)-1 genotype status on the risk for coronary artery disease (CAD), defined as >50% diameter stenosis, and cardiovascular events mediated by oxidized phospholipids (OxPLs) and lipoprotein (Lp) (a). BACKGROUND OxPLs are pro-inflammatory, circulate on Lp(a), and mediate CAD. Genetic variations in the IL-1 region are associated with increased inflammatory mediators. METHODS IL-1 genotypes, OxPL on apolipoprotein B-100 (OxPL/apoB), and Lp(a) levels were measured in 499 patients undergoing coronary angiography. The composite genotype termed IL-1(+) was defined by 3 single-nucleotide polymorphisms in the IL-1 gene cluster associated with higher levels of pro-inflammatory cytokines. All other IL-1 genotypes were termed IL-1(-). RESULTS Among IL-1(+) patients, the highest quartile of OxPL/apoB was significantly associated with a higher risk for CAD compared with the lowest quartile (odds ratio [OR]: 2.84; p = 0.001). This effect was accentuated in patients age ≤60 years (OR: 7.03; p < 0.001). In IL-1(-) patients, OxPL/apoB levels showed no association with CAD. The interaction was significant for OxPL/apoB (OR: 1.99; p = 0.004) and Lp(a) (OR: 1.96; p < 0.001) in the IL-1(+) group versus the IL-1(-) group in patients age ≤60 years but not in those age >60 years. In IL-1(+) patients age ≤60 years, after adjustment for established risk factors, high-sensitivity C-reactive protein, and Lp(a), OxPL/apoB remained an independent predictor of CAD. IL-1(+) patients above the median OxPL/apoB presented to the cardiac catheterization laboratory a mean of 3.9 years earlier (p = 0.002) and had worse 4-year event-free survival (death, myocardial infarction, stroke, and need for revascularization) compared with other groups (p = 0.006). CONCLUSIONS Our study suggests that IL-1 genotype status can stratify population risk for CAD and cardiovascular events mediated by OxPL. These data suggest a clinically relevant biological link between pro-inflammatory IL-1 genotype, oxidation of phospholipids, Lp(a), and genetic predisposition to CAD and cardiovascular events.
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Affiliation(s)
- Sotirios Tsimikas
- Division of Cardiovascular Diseases, University of California San Diego, La Jolla, California.
| | - Gordon W Duff
- Division of Genomic Medicine, University of Sheffield, Sheffield, United Kingdom
| | - Peter B Berger
- Department of Cardiology, Geisinger Health System, Danville, Pennsylvania
| | - John Rogus
- Interleukin Genetics, Inc., Waltham, Massachusetts
| | | | - Paul Clopton
- Veterans Affairs Medical Center, San Diego, California
| | | | | | - Joseph L Witztum
- Division of Endocrinology and Metabolism, University of California San Diego, La Jolla, California
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Katan M, Moon YP, Paik MC, Wolfert RL, Sacco RL, Elkind MSV. Lipoprotein-associated phospholipase A2 is associated with atherosclerotic stroke risk: the Northern Manhattan Study. PLoS One 2014; 9:e83393. [PMID: 24416164 PMCID: PMC3886969 DOI: 10.1371/journal.pone.0083393] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2013] [Accepted: 11/04/2013] [Indexed: 11/18/2022] Open
Abstract
Background Lipoprotein-associated phospholipase A2 (LpPLA2) levels are associated with stroke, though whether this extends to all populations and stroke subtypes is unknown. Methods Serum samples from stroke-free community participants in the Northern Manhattan Study were assayed for LpPLA2 mass and activity. Participants were followed annually for stroke. Cox-proportional-hazard models were fitted to estimate hazard-ratios and 95% confidence intervals (HR, 95% CI) for the association of LpPLA2 levels with ischemic stroke (IS), after adjusting for demographic and medical risk factors. Results Serum samples were available in 1946 participants, of whom 151 (7.8%) experienced a first IS during median follow-up 11 years. Mean age was 69 (SD 10), 35.6% were men, 20% non-Hispanic Whites, 22% non-Hispanic Blacks, and 55% Hispanics. LpPLA2 mass and activity levels were not associated with overall IS risk. LpPLA2 mass but not activity levels were associated with strokes due to large artery atherosclerosis (LAA; adjusted HR per SD 1.55, 95% CI 1.17–2.04). There was a dose-response relationship with LAA (compared to first quartile, 2nd quartile HR = 1.43, 95% CI 0.23–8.64; 3rd quartile HR = 4.47, 95% CI 0.93–21.54; 4th quartile HR = 5.07, 95% CI 1.07–24.06). The associations between LpPLA2-mass and LAA-stroke risk differed by race-ethnicity (p = 0.01); LpPLA2-mass was associated with increased risk of LAA among non-Hispanic Whites (adjusted HR per SD 1.44, 95% CI 0.98–2.11), but not other race-ethnic groups. Conclusion LpPLA2-mass levels were associated with risk of atherosclerotic stroke among non-Hispanic White participants, but not in other race-ethnic groups in the cohort. Further study is needed to confirm these race-ethnic differences and the reasons for them.
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Affiliation(s)
- Mira Katan
- Department of Neurology, Columbia University College of Physicians and Surgeons, New York, New York, United States of America
- Department of Neurology, University Hospital of Zurich, Switzerland
- * E-mail:
| | - Yeseon P. Moon
- Department of Neurology, Columbia University College of Physicians and Surgeons, New York, New York, United States of America
| | - Myunghee C. Paik
- Department of Biostatistics, Mailman School of Public Health, Columbia University New York, New York, United States of America
| | | | - Ralph L. Sacco
- Department of Neurology, Miller School of Medicine, University of Miami, Miami, Florida, United States of America
- Departments of Epidemiology and Human Genetics, Miller School of Medicine, University of Miami, Miami, Florida, United States of America
| | - Mitchell S. V. Elkind
- Department of Neurology, Columbia University College of Physicians and Surgeons, New York, New York, United States of America
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, New York, United States of America
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Feng LM, Feng GF, Chen Y. Evaluation of lipoprotein-associated phospholipase A2 in healthy Chinese Han adult serum. Lipids Health Dis 2014; 13:6. [PMID: 24393260 PMCID: PMC3895822 DOI: 10.1186/1476-511x-13-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Accepted: 01/03/2014] [Indexed: 12/13/2022] Open
Abstract
Objective The aim of this study is to establish lipoprotein-associated phospholipase A2 (Lp-PLA2) reference intervals (RIs) in healthy Chinese Han adults as a clinical diagnostic indicator according to the Clinical and Laboratory Standards Institute (CLSI) C28-A3 guidelines. Design and methods Lp-PLA2 levels in 763 healthy Chinese Han subjects (392 males and 371 females) were determined by colorimetric analysis and the central 95th percentile RIs were determined using non-parametric statistical methods. The correlations between serum Lp-PLA2 and blood markers were analyzed by Spearman correlation analyses. Results The Lp-PLA2 levels showed a Gaussian distribution with a statistically significant difference between females and males (t = 4.866, P < 0.001). The RIs of serum Lp-PLA2 were 194–640 U/L (18–49 years) and 208–698 U/L (50–88 years) for females, and 230–728 U/L for males. There was a positive correlation between Lp-PLA2 levels and age, Body Mass Index (BMI), as well as with levels of alanine aminotransferase (ALT), gamma-glutamyltransferase (GGT), total bilirubin (TBIL), triglyceride (TG), total cholesterol (Tch), low density lipoprotein cholesterol (LDL-c), apolipoprotein B (apoB), glucose (Glu), high sensitivity C reactive protein (Hs-CRP), white blood cell (WBC), hemoglobin (HGB) and red blood cell (RBC) (P < 0.05). A negative correlation was found with high density lipoprotein cholesterol (HDL-c) and Apolipoprotein AI (apoAI), and no correlation was found with platelet (Plt) levels. Conclusion Our results establish the RIs of serum Lp-PLA2 in healthy Chinese Han adults and demonstrate correlations between serum Lp-PLA2 and age, BMI, ALT, GGT, TBIL, TG, Tch, HDL-c, LDL-c, apoAI, apoB, Glu, Hs-CRP, WBC, RBC, and HGB levels.
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Affiliation(s)
| | | | - Yu Chen
- Department of Laboratory Medicine, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, P,R, China.
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Kim C, Harlow SD, Karvonen-Gutierrez CA, Randolph JF, Helmuth M, Kong S, Nan B, Carlos R. Racial/ethnic differences in hepatic steatosis in a population-based cohort of post-menopausal women: the Michigan Study of Women's Health Across the Nation. Diabet Med 2013; 30:1433-41. [PMID: 23659546 PMCID: PMC3786038 DOI: 10.1111/dme.12225] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2012] [Revised: 04/11/2013] [Accepted: 05/07/2013] [Indexed: 12/20/2022]
Abstract
AIMS The prevalence of hepatic steatosis may differ between post-menopausal African-American women and non-Hispanic white women and by sex hormone binding globulin level. We examined prevalence of hepatic steatosis by race/ethnicity and associations with sex hormone binding globulin. METHODS Participants included post-menopausal women who underwent hepatic ultrasound (n = 345) at the Michigan site of the Study of Women's Health Across the Nation, a population-based study. We examined hepatic steatosis prevalence by race/ethnicity and used logistic regression models to calculate the odds of hepatic steatosis with race/ethnicity and sex hormone binding globulin, after adjustment for age, alcohol use, waist circumference, high density lipoprotein cholesterol, triglycerides, systolic blood pressure and use of medications reported to lower intrahepatic fat. RESULTS Fewer African-American women than non-Hispanic white women had hepatic steatosis (23 vs. 36%, P = 0.01). African-American women had lower triglyceride and low-density lipoprotein cholesterol levels, but higher blood pressure and follicle-stimulating hormone levels (P < 0.05). In the optimal-fitting multivariable models, women in the highest tertile of sex hormone binding globulin (60.2-220.3 nmol/l) had a lower odds of hepatic steatosis (odds ratio 0.43, 95% CI 0.20-0.93) compared with women in the lowest tertile of sex hormone binding globulin (10.5-40.3 nmol/l). There was an interaction between race/ethnicity and medication use whereby non-Hispanic white women using medications had three times higher odds of hepatic steatosis compared with African-American women not using medications (odds ratio 3.36, 95% CI 1.07-10.58). Interactions between race/ethnicity and other variables, including sex hormone levels, were not significant. CONCLUSIONS Hepatic steatosis on ultrasound may be more common in post-menopausal non-Hispanic white women than African-American women and was associated with lower levels of sex hormone binding globulin.
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Affiliation(s)
- C Kim
- Department of Medicine, Ann Arbor, MI, USA; Department of Obstetrics and Gynecology, Ann Arbor, MI, USA
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n-3 and n-6 Fatty acids are independently associated with lipoprotein-associated phospholipase A2 in the Multi-Ethnic Study of Atherosclerosis. Br J Nutr 2013; 110:1664-71. [PMID: 23551952 DOI: 10.1017/s0007114513000949] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Lipoprotein-associated phospholipase A2 (Lp-PLA2) is an independent risk factor for CVD and has been proposed as a marker of vascular inflammation. Polyunsaturated n-3 fatty acids (FA) and several n-6 FA are known to suppress inflammation and may influence Lp-PLA2 mass and activity. The associations of n-3 and n-6 plasma FA with Lp-PLA2 mass and activity were analysed using linear regression analysis in 2246 participants of the Multi-Ethnic Study of Atherosclerosis; statistical adjustments were made to control for body mass, inflammation, lipids, diabetes, and additional clinical and demographic factors. Lp-PLA2 mass and activity were significantly lower in participants with the higher n-3 FA EPA (β = - 4·72, P< 0·001; β = - 1·53; P= 0·023) and DHA levels (β = - 4·47, β = - 1·87; both P< 0·001). Those in the highest quintiles of plasma EPA and DHA showed 12·71 and 19·15 ng/ml lower Lp-PLA2 mass and 5·7 and 8·90 nmol/min per ml lower Lp-PLA2 activity than those in the first quintiles, respectively. In addition, lower Lp-PLA2 mass and activity were associated with higher levels of n-6 arachidonic acid (β = - 1·63, β = - 1·30; both P< 0·001), while γ-linolenic acid was negatively associated with activity (β = - 27·7, P= 0·027). Lp-PLA2 mass was significantly higher in participants with greater plasma levels of n-6 linoleic (β = 0·828, P= 0·011) and dihomo-γ-linolenic acids (β = 4·17, P= 0·002). Based on their independent associations with Lp-PLA2 mass and activity, certain n-3 and n-6 FA may have additional influences on CVD risk. Intervention studies are warranted to assess whether these macronutrients may directly influence Lp-PLA2 expression or activity.
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Pharmacometabolomics reveals racial differences in response to atenolol treatment. PLoS One 2013; 8:e57639. [PMID: 23536766 PMCID: PMC3594230 DOI: 10.1371/journal.pone.0057639] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2012] [Accepted: 01/28/2013] [Indexed: 02/06/2023] Open
Abstract
Antihypertensive drugs are among the most commonly prescribed drugs for chronic disease worldwide. The response to antihypertensive drugs varies substantially between individuals and important factors such as race that contribute to this heterogeneity are poorly understood. In this study we use metabolomics, a global biochemical approach to investigate biochemical changes induced by the beta-adrenergic receptor blocker atenolol in Caucasians and African Americans. Plasma from individuals treated with atenolol was collected at baseline (untreated) and after a 9 week treatment period and analyzed using a GC-TOF metabolomics platform. The metabolomic signature of atenolol exposure included saturated (palmitic), monounsaturated (oleic, palmitoleic) and polyunsaturated (arachidonic, linoleic) free fatty acids, which decreased in Caucasians after treatment but were not different in African Americans (p<0.0005, q<0.03). Similarly, the ketone body 3-hydroxybutyrate was significantly decreased in Caucasians by 33% (p<0.0001, q<0.0001) but was unchanged in African Americans. The contribution of genetic variation in genes that encode lipases to the racial differences in atenolol-induced changes in fatty acids was examined. SNP rs9652472 in LIPC was found to be associated with the change in oleic acid in Caucasians (p<0.0005) but not African Americans, whereas the PLA2G4C SNP rs7250148 associated with oleic acid change in African Americans (p<0.0001) but not Caucasians. Together, these data indicate that atenolol-induced changes in the metabolome are dependent on race and genotype. This study represents a first step of a pharmacometabolomic approach to phenotype patients with hypertension and gain mechanistic insights into racial variability in changes that occur with atenolol treatment, which may influence response to the drug.
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Davidson JE, Lockhart A, Amos L, Stirnadel-Farrant HA, Mooser V, Sollberger M, Regeniter A, Monsch AU, Irizarry MC. Plasma lipoprotein-associated phospholipase A2 activity in Alzheimer's disease, amnestic mild cognitive impairment, and cognitively healthy elderly subjects: a cross-sectional study. ALZHEIMERS RESEARCH & THERAPY 2012; 4:51. [PMID: 23217243 PMCID: PMC3580460 DOI: 10.1186/alzrt154] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2012] [Revised: 11/22/2012] [Accepted: 11/30/2012] [Indexed: 12/20/2022]
Abstract
Introduction Lipoprotein-associated phospholipase A2 (Lp-PLA2) is a circulating enzyme with pro-inflammatory and oxidative activities associated with cardiovascular disease and ischemic stroke. While high plasma Lp-PLA2 activity was reported as a risk factor for dementia in the Rotterdam study, no association between Lp-PLA2 mass and dementia or Alzheimer's disease (AD) was detected in the Framingham study. The objectives of the current study were to explore the relationship of plasma Lp-PLA2 activity with cognitive diagnoses (AD, amnestic mild cognitive impairment (aMCI), and cognitively healthy subjects), cardiovascular markers, cerebrospinal fluid (CSF) markers of AD, and apolipoprotein E (APOE) genotype. Methods Subjects with mild AD (n = 78) and aMCI (n = 59) were recruited from the Memory Clinic, University Hospital, Basel, Switzerland; cognitively healthy subjects (n = 66) were recruited from the community. Subjects underwent standardised medical, neurological, neuropsychological, imaging, genetic, blood and CSF evaluation. Differences in Lp-PLA2 activity between the cognitive diagnosis groups were tested with ANOVA and in multiple linear regression models with adjustment for covariates. Associations between Lp-PLA2 and markers of cardiovascular disease and AD were explored with Spearman's correlation coefficients. Results There was no significant difference in plasma Lp-PLA2 activity between AD (197.1 (standard deviation, SD 38.4) nmol/min/ml) and controls (195.4 (SD 41.9)). Gender, statin use and low-density lipoprotein cholesterol (LDL) were independently associated with Lp-PLA2 activity in multiple regression models. Lp-PLA2 activity was correlated with LDL and inversely correlated with high-density lipoprotein (HDL). AD subjects with APOE-ε4 had higher Lp-PLA2 activity (207.9 (SD 41.2)) than AD subjects lacking APOE-ε4 (181.6 (SD 26.0), P = 0.003) although this was attenuated by adjustment for LDL (P = 0.09). No strong correlations were detected for Lp-PLA2 activity and CSF markers of AD. Conclusion Plasma Lp-PLA2 was not associated with a diagnosis of AD or aMCI in this cross-sectional study. The main clinical correlates of Lp-PLA2 activity in AD, aMCI and cognitively healthy subjects were variables associated with lipid metabolism.
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Affiliation(s)
- Julie E Davidson
- Worldwide Epidemiology, GlaxoSmithKline R&D, 1-3 Iron Bridge Road, Stockley Park, UB11 1BT, UK ; Memory Clinic, Department of Geriatrics, Basel University Hospital, Schanzenstrasse 55, 4031 Basel, Switzerland
| | - Andrew Lockhart
- R&D China, GlaxoSmithKline, Addenbrooke's Centre for Clinical Investigation, Addenbrooke's Hospital, Hills Road, Cambridge, CB2 2GG, UK
| | - Leslie Amos
- Genetics, GlaxoSmithKline R&D, 5 Moore Drive, Research Triangle Park, NC 27709, USA
| | | | - Vincent Mooser
- Genetics, GlaxoSmithKline R&D, 709 Swedeland Road, King of Prussia, PA 19406, USA
| | - Marc Sollberger
- Memory Clinic, Department of Geriatrics, Basel University Hospital, Schanzenstrasse 55, 4031 Basel, Switzerland
| | - Axel Regeniter
- Laboratory Medicine, Basel University Hospital, Basel, Switzerland
| | - Andreas U Monsch
- Memory Clinic, Department of Geriatrics, Basel University Hospital, Schanzenstrasse 55, 4031 Basel, Switzerland
| | - Michael C Irizarry
- Worldwide Epidemiology, GlaxoSmithKline R&D, 5 Moore Drive, Research Triangle Park, NC 27709, USA
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Biomarkers and their involvement in the early diagnosis of right ventricular dysfunction in type 2 Diabetes Mellitus. J Med Life 2012; 5:74-8. [PMID: 22574090 PMCID: PMC3307083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2011] [Accepted: 01/08/2012] [Indexed: 10/26/2022] Open
Abstract
OBJECTIVE During the last years, left ventricular dysfunction in diabetes was intensely studied and it is recognized as a complication of diabetes, while data regarding the right ventricular dysfunction is still incomplete. The aim of this study was to find a correlation between inflammatory biomarkers, adiponectin and right ventricular strain and strain rate properties in patients with diabetes mellitus type 2. METHODS We studied 29 patients with type 2 diabetes mellitus (DM), with coexisting cardiovascular complications, coronary artery disease and high blood pressure (group 1- DM+CV, aged 61.2 ± 4.2 years); and 22 patients with type 2 diabetes and controlled high blood pressure only, with no other coexisting cardiovascular complications (group 2- DM, aged 60.86 ± 4.4 years). We evaluated the right ventricular (rv) function through vector velocity imaging (vvi)and determined the inflammatory profile through assessment of the following biomarkers: high sensitivity C- reactive protein (hsCRP), tumor necrosis factor-alpha (TNF-alfa), lipoprotein associated phospholipase A2 (Lp-PLA2) and adiponectin level for each patient. RESULTS VVI revealed significantly lower values of systolic strain and strain rates (SR) in the basal segment of the RV free wall in group I patients (DM+CV) as compared to group II patients (DM) which indicates higher impairment of RV systolic function in patients with diabetes and other cardiovascular complications. In both groups strain and strain rate values were correlated with Lp-PLA2 activity levels. CONCLUSIONS In Type 2 diabetes mellitus we identified a low-grade inflammatory status correlated with right ventricular systolic dysfunction.
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Sarlon-Bartoli G, Boudes A, Buffat C, Bartoli MA, Piercecchi-Marti MD, Sarlon E, Arnaud L, Bennis Y, Thevenin B, Squarcioni C, Nicoli F, Dignat-George F, Sabatier F, Magnan PE. Circulating lipoprotein-associated phospholipase A2 in high-grade carotid stenosis: a new biomarker for predicting unstable plaque. Eur J Vasc Endovasc Surg 2011; 43:154-9. [PMID: 22075154 DOI: 10.1016/j.ejvs.2011.10.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2011] [Accepted: 10/10/2011] [Indexed: 11/19/2022]
Abstract
OBJECTIVE To test plasma levels of lipoprotein-associated phospholipase A2 (Lp-PLA2) in patients with high-grade carotid stenosis according to plaque histology. METHODS This cross-sectional single-centre study included patients with ≥70% North American Symptomatic Carotid Endarterectomy Trial (NASCET) carotid stenosis, who were treated surgically. Serum Lp-PLA2 and high-sensitivity C-reactive protein (hs-CRP) were determined on the day of surgery. Histopathological analysis classified carotid plaque as stable or unstable, according to AHA classification. RESULTS Of the 42 patients (mean age 70.4 ± 10.5 years; 67% men), neurological symptoms were present in 16 (38%). Unstable plaques were found in 23 (55%). Median plasma level of Lp-PLA2 was significantly higher in patients with unstable plaque compared to those with stable plaque (222.4 (174.9-437.5) interquartile range (IQR) 63.5 vs. 211.1 (174.9-270.6) IQR 37.2 ng ml(-1); p = 0.02). Moreover, median Lp-PLA2 level were higher in asymptomatic patients with unstable plaque (226.8 ng ml(-1) (174.9-437.5) IQR 76.8) vs. stable plaque (206.9 ng ml(-1) (174.9-270.6) IQR 33.7; p = 0.16). Logistic regression showed that only the neurological symptoms (OR = 30.9 (3.7-244.6); p < 0.001) and the plasma Lp-PLA2 level (OR = 1.7 (1.1-12.3); p = 0.03) were independently associated with unstable carotid plaque as defined by histology. CONCLUSIONS This study showed that circulating Lp-PLA2 was increased in patients with high-grade carotid stenosis and unstable plaque. Lp-PLA2 may be a relevant biomarker to guide for invasive therapy in asymptomatic patients with carotid artery disease.
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Affiliation(s)
- G Sarlon-Bartoli
- Service de Chirurgie Vasculaire, Faculté de Médecine de Marseille, Université de la Méditerranée, Assistance Publique Hôpitaux de Marseille-Hôpital de la Timone, 13005 Marseille, France.
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Liu YS, Hu XB, Li HZ, Jiang WD, Wang X, Lin H, Qin AQ, Wang YM, Zhao T, Dong ZQ, Zhang M, Lu QH. Association of lipoprotein-associated phospholipase A₂ with characteristics of vulnerable coronary atherosclerotic plaques. Yonsei Med J 2011; 52:914-22. [PMID: 22028154 PMCID: PMC3220251 DOI: 10.3349/ymj.2011.52.6.914] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
PURPOSE Lipoprotein-associated phospholipase A₂ (Lp-PLA₂) is an inflammatory enzyme expressed in atherosclerotic plaques. We investigated the association of circulating Lp-PLA₂ with characteristics of vulnerable coronary atherosclerotic plaques. MATERIALS AND METHODS We recruited 113 patients with either unstable angina (UA, n=59) and stable angina (SA, n=54) by coronary angiography. Thirty-six healthy subjects served as controls. Intravascular ultrasound (IVUS) was used to evaluate the characteristics of coronary atherosclerotic plaque, and serum Lp-PLA₂ concentration was measured as well. RESULTS Lp-PLA₂ concentration was significantly higher in both UA and SA patients [(396±36) μg/L and (321±39) μg/L, respectively] compared with the controls [(127 ± 49) μg/L, p<0.01], and higher in UA than SA group. IVUS findings showed that remodeling index (RI) (0.91 ± 0.15 vs. 0.85 ± 0.11, p=0.005) and eccentricity index (EI) (0.73 ± 0.16 vs. 0.65 ± 0.22, p=0.039) were larger in UA than in SA group, and fibrous caps were thicker in SA than UA group [(0.91 ± 0.23) mm vs. (0.63 ± 0.21) mm, p=0.032]. Moreover, Lp-PLA₂ correlated positively with EI (r=0.439, p<0.01) and RI (r=0.592, p<0.05) in UA group. There was an inverse relationship between Lp-PLA₂ and fibrous cap thickness in both UA (r=-0.587, p<0.001) and SA (r=-0.318, p<0.05) groups. The independent risk factors in UA group were Lp-PLA₂ (OR=1.055, 95% CI: 1.03-1.08, p=0.013), LDL-cholesterol (OR=0.032, 95% CI: 0.00-0.05, p=0.041) and fibrous cap thickness (OR=0.008, 95% CI: 0.00-0.45, p=0.019). Lp-PLA₂ was strongly associated with both EI and fibrous cap thickness in both groups. CONCLUSION Serum level of Lp-PLA₂ is associated with both eccentricity index and fibrous cap thickness in both UA and SA groups. Elevated levels of circulating Lp-PLA₂ might to be a strong risk factor and more serious for unstable angina than stable angina.
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Affiliation(s)
- Yu-Sheng Liu
- Department of Cardiology, The Qilu Hospital of Shandong University, Jinan, China
- Department of Cardiology, The Second Hospital of Shandong University, Jinan, China
| | - Xiao-Bo Hu
- Department of Cardiology, The Qilu Hospital of Shandong University, Jinan, China
| | - Hong-Zhuan Li
- Division of Internal Medicine, The NO. 4th Hospital of Jinan City, Taishan Medical College, Jinan, China
| | - Wei-Dong Jiang
- Department of Cardiology, The Second Hospital of Shandong University, Jinan, China
| | - Xin Wang
- Department of Cardiology, The Second Hospital of Shandong University, Jinan, China
| | - Hao Lin
- Department of Cardiology, The Second Hospital of Shandong University, Jinan, China
| | - Ai-Qiong Qin
- Department of Cardiology, The Second Hospital of Shandong University, Jinan, China
| | - Yong-Mei Wang
- Department of Cardiology, The Second Hospital of Shandong University, Jinan, China
| | - Tong Zhao
- Department of Cardiology, The Second Hospital of Shandong University, Jinan, China
| | - Zhao-Qiang Dong
- Department of Cardiology, The Second Hospital of Shandong University, Jinan, China
| | - Mei Zhang
- Department of Cardiology, The Qilu Hospital of Shandong University, Jinan, China
| | - Qing-Hua Lu
- Department of Cardiology, The Second Hospital of Shandong University, Jinan, China
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Lee KK, Fortmann SP, Varady A, Fair JM, Go AS, Quertermous T, Hlatky MA, Iribarren C. Racial variation in lipoprotein-associated phospholipase A₂ in older adults. BMC Cardiovasc Disord 2011; 11:38. [PMID: 21714927 PMCID: PMC3146402 DOI: 10.1186/1471-2261-11-38] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2010] [Accepted: 06/29/2011] [Indexed: 01/27/2023] Open
Abstract
Background Lipoprotein-associated phospholipase A2 (Lp-PLA2) is a predictor of cardiovascular events that has been shown to vary with race. The objective of this study was to examine factors associated with this racial variation. Methods We measured Lp-PLA2 mass and activity in 714 healthy older adults with no clinical coronary heart disease and not taking dyslipidemia medication. We evaluated the association between race and Lp-PLA2 mass and activity levels after adjustment for various covariates using multivariable linear regression. These covariates included age, sex, diabetes, hypertension, body mass index, lipid measurements, C-reactive protein, smoking status, physical activity, diet, income, and education level. We further examined genetic covariates that included three single nucleotide polymorphisms shown to be associated with Lp-PLA2 activity levels. Results The mean age was 66 years. Whites had the highest Lp-PLA2 mass and activity levels, followed by Hispanics and Asians, and then African-Americans; in age and sex adjusted analyses, these differences were significant for each non-White race as compared to Whites (p < 0.0001). For example, African-Americans were predicted to have a 55.0 ng/ml lower Lp-PLA2 mass and 24.7 nmol/ml-min lower activity, compared with Whites, independent of age and sex (p < 0.0001). After adjustment for all covariates, race remained significantly correlated with Lp-PLA2 mass and activity levels (p < 0.001) with African-Americans having 44.8 ng/ml lower Lp-PLA2 mass and 17.3 nmol/ml-min lower activity compared with Whites (p < 0.0001). Conclusion Biological, lifestyle, demographic, and select genetic factors do not appear to explain variations in Lp-PLA2 mass and activity levels between Whites and non-Whites, suggesting that Lp-PLA2 mass and activity levels may need to be interpreted differently for various races.
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Affiliation(s)
- Keane K Lee
- Department of Health Research and Policy, Stanford University School of Medicine, HRP Redwood Building, Stanford, CA 94305-5405, USA.
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Greenland P, Alpert JS, Beller GA, Benjamin EJ, Budoff MJ, Fayad ZA, Foster E, Hlatky MA, Hodgson JM, Kushner FG, Lauer MS, Shaw LJ, Smith SC, Taylor AJ, Weintraub WS, Wenger NK, Jacobs AK, Smith SC, Anderson JL, Albert N, Buller CE, Creager MA, Ettinger SM, Guyton RA, Halperin JL, Hochman JS, Kushner FG, Nishimura R, Ohman EM, Page RL, Stevenson WG, Tarkington LG, Yancy CW. 2010 ACCF/AHA guideline for assessment of cardiovascular risk in asymptomatic adults: a report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines. J Am Coll Cardiol 2011; 56:e50-103. [PMID: 21144964 DOI: 10.1016/j.jacc.2010.09.001] [Citation(s) in RCA: 1001] [Impact Index Per Article: 77.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Marino M, Masella R, Bulzomi P, Campesi I, Malorni W, Franconi F. Nutrition and human health from a sex-gender perspective. Mol Aspects Med 2011; 32:1-70. [PMID: 21356234 DOI: 10.1016/j.mam.2011.02.001] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2010] [Revised: 01/25/2011] [Accepted: 02/18/2011] [Indexed: 02/07/2023]
Abstract
Nutrition exerts a life-long impact on human health, and the interaction between nutrition and health has been known for centuries. The recent literature has suggested that nutrition could differently influence the health of male and female individuals. Until the last decade of the 20th century, research on women has been neglected, and the results obtained in men have been directly translated to women in both the medicine and nutrition fields. Consequently, most modern guidelines are based on studies predominantly conducted on men. However, there are many sex-gender differences that are the result of multifactorial inputs, including gene repertoires, sex steroid hormones, and environmental factors (e.g., food components). The effects of these different inputs in male and female physiology will be different in different periods of ontogenetic development as well as during pregnancy and the ovarian cycle in females, which are also age dependent. As a result, different strategies have evolved to maintain male and female body homeostasis, which, in turn, implies that there are important differences in the bioavailability, metabolism, distribution, and elimination of foods and beverages in males and females. This article will review some of these differences underlying the impact of food components on the risk of developing diseases from a sex-gender perspective.
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Affiliation(s)
- Maria Marino
- Department of Biology, University Roma Tre, Viale Guglielmo Marconi 446, I-00146 Roma, Italy
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Abstract
Lipoprotein-associated phospholipase A2 (Lp-PLA₂) is at the crossroads of lipid metabolism and the inflammatory response. It is produced by inflammatory cells, bound to LDL and other lipoproteins, and once in the arterial wall facilitates hydrolysis of phospholipids. Elevated serum levels of Lp-PLA₂ have been associated with increased cardiovascular risk in healthy populations and in patients with known vascular disease. Here, we review the role of Lp-PLA₂ in the development of atherosclerosis and progression to unstable disease, the utility of Lp-PLA₂ as a risk predictor for coronary and carotid events and the potential clinical benefit of pharmacologic inhibition of Lp-PLA₂.
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Affiliation(s)
- K C Epps
- Cardiovascular Division, Hospital of the University of Pennsylvania and Cardiovascular Institute, University of Pennsylvania, Philadelphia, PA, USA
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Bekci TT, Kayrak M, Kiyici A, Maden E, Ari H, Kaya Z, Teke T, Akilli H. The association among lipoprotein-associated phospholipase A2 levels, total antioxidant capacity and arousal in male patients with OSA. Int J Med Sci 2011; 8:369-76. [PMID: 21698055 PMCID: PMC3119379 DOI: 10.7150/ijms.8.369] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2011] [Accepted: 04/25/2011] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND The mechanisms of the increased cardiac and vascular events in patients with OSA are not well understood. Arousal which is an important component of OSA was associated with increased sympathetic activation and electrocardiographic changes which prone to arrhythmias. We planned to examine the association among arousal, circulating Lp-PLA2 and total antioxidant capacity in male patients with OSA. METHODS Fifty male patients with newly diagnosed OSA were enrolled the study. A full-night polysomnography was performed and arousal index was obtained. Lp-PLA2 concentrations were measured in serum samples with the PLAC Test. Total antioxidant capacity in patients was determined with Antioxidant Assay Kit. RESULTS Arousal was positively correlated with LP-PLA2 levels (r=0.43, p=0.002) and was negatively correlated with total antioxidant capacity (r= -0.29, p=0.04). Elevated LP-PLA2 levels and decreased total antioxidant activities were found in the highest arousal quartile compared with the lowest and 2nd quartiles (p=0.02, p=0.05, respectively). LP-PLA2 was an independently predictor of arousal index in regression model (β=0.357, p=0.002) CONCLUSIONS This study demonstrated a moderate linear relationship between arousal and LP-PLA2 levels. Also, total antioxidant capacities were decreased in the higher arousal index. Based on the study result, the patients with higher arousal index may be prone to vascular events.
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Affiliation(s)
- Taha T Bekci
- Department of Pulmonary Medicine, Konya Education and Research Hospital, Konya/ Turkey.
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Greenland P, Alpert JS, Beller GA, Benjamin EJ, Budoff MJ, Fayad ZA, Foster E, Hlatky MA, Hodgson JM, Kushner FG, Lauer MS, Shaw LJ, Smith SC, Taylor AJ, Weintraub WS, Wenger NK, Jacobs AK. 2010 ACCF/AHA guideline for assessment of cardiovascular risk in asymptomatic adults: a report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines. Circulation 2010; 122:e584-636. [PMID: 21098428 DOI: 10.1161/cir.0b013e3182051b4c] [Citation(s) in RCA: 431] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Anuurad E, Ozturk Z, Enkhmaa B, Pearson TA, Berglund L. Association of lipoprotein-associated phospholipase A2 with coronary artery disease in African-Americans and Caucasians. J Clin Endocrinol Metab 2010; 95:2376-83. [PMID: 20194707 PMCID: PMC2869550 DOI: 10.1210/jc.2009-2498] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2009] [Accepted: 02/04/2010] [Indexed: 01/28/2023]
Abstract
CONTEXT Lipoprotein-associated phospholipase A(2) (Lp-PLA(2)) is bound predominately to low-density lipoprotein and has been implicated as a risk factor for coronary artery disease (CAD). OBJECTIVE We investigated the association between Lp-PLA(2) and CAD in a biethnic African-American and Caucasian population. DESIGN Lp-PLA(2) mass, activity, and index, an integrated measure of mass and activity, and other cardiovascular risk factors were determined in 224 African-Americans and 336 Caucasians undergoing coronary angiography. MAIN OUTCOME MEASURES We assessed the distribution of Lp-PLA(2) levels and determined the predictive role of Lp-PLA(2) as a risk factor for CAD. RESULTS Levels of Lp-PLA(2) mass and activity were higher among Caucasians compared with African-Americans (293 +/- 75 vs. 232 +/- 76 ng/ml, P < 0.001 for mass and 173 +/- 41 vs. 141 +/- 39 nmol/min/ml, P < 0.001 for activity, respectively). However, Lp-PLA(2) index was similar in the two groups (0.61 +/- 0.17 vs. 0.64 +/- 0.19, P = NS). In both ethnic groups, Lp-PLA(2) activity and index was significantly higher among subjects with CAD. African-American subjects with CAD had significantly higher Lp-PLA(2) index than corresponding Caucasian subjects (0.69 +/- 0.20 vs. 0.63 +/- 0.18, P = 0.028). In multivariate regression analyses, after adjusting for other risk factors, Lp-PLA(2) index was independently (odds ratio 6.7, P = 0.047) associated with CAD in African-Americans but not Caucasians. CONCLUSIONS Lp-PLA(2) activity and index was associated with presence of CAD among African-Americans and Caucasians undergoing coronary angiography. The findings suggest an independent impact of vascular inflammation among African-Americans as contributory to CAD risk and underscore the importance of Lp-PLA(2) as a cardiovascular risk factor.
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Affiliation(s)
- Erdembileg Anuurad
- Department of Medicine, University of California, Davis, California 95817, USA
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Enkhmaa B, Anuurad E, Zhang W, Pearson TA, Berglund L. Association of Lp-PLA(2) activity with allele-specific Lp(a) levels in a bi-ethnic population. Atherosclerosis 2010; 211:526-30. [PMID: 20444451 DOI: 10.1016/j.atherosclerosis.2010.03.021] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2009] [Revised: 02/24/2010] [Accepted: 03/10/2010] [Indexed: 11/19/2022]
Abstract
OBJECTIVES Lipoprotein-associated phospholipase A(2) (Lp-PLA(2)) and lipoprotein(a) [Lp(a)] have been implicated as cardiovascular disease risk factors, and are differentially regulated across ethnicity. We investigated the association between Lp-PLA(2) activity and allele-specific apolipoprotein(a) [apo(a)] levels in a bi-ethnic population. METHODS Lp-PLA(2) activity, Lp(a) and allele-specific apo(a) levels were determined in 224 African Americans and 336 Caucasians. RESULTS Lp-PLA(2) activity level was higher among Caucasians compared to African Americans (173 + or - 41 nmol/min/ml vs. 141 + or - 39 nmol/min/ml, P<0.001), and positively associated with Lp(a), total and LDL cholesterol, triglyceride, apolipoprotein B-100, and negatively with HDL cholesterol levels in both ethnic groups. The association between Lp-PLA(2) activity and Lp(a) was stronger among African Americans compared to Caucasians (R=0.238, beta(1)=3.48, vs. R=0.111, beta(1)=1.93, respectively). The Lp-PLA(2) activity level was significantly associated with allele-specific apo(a) levels for smaller (<26 K4 repeats) apo(a) sizes in both ethnic groups (P=0.015 for African Americans, P=0.038 for Caucasians). In contrast, for larger (>26 K4 repeats) apo(a) sizes, high Lp-PLA(2) activity levels were associated with higher allele-specific apo(a) levels in African Americans (P=0.009), but not in Caucasians. CONCLUSION The association between Lp-PLA(2) activity and allele-specific apo(a) levels differs across African American-Caucasian ethnicity.
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Affiliation(s)
- Byambaa Enkhmaa
- Department of Medicine, University of California, Davis, CA, USA
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Hatoum IJ, Nelson JJ, Cook NR, Hu FB, Rimm EB. Dietary, lifestyle, and clinical predictors of lipoprotein-associated phospholipase A2 activity in individuals without coronary artery disease. Am J Clin Nutr 2010; 91:786-93. [PMID: 20107195 PMCID: PMC2824159 DOI: 10.3945/ajcn.2009.28870] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Elevated lipoprotein-associated phospholipase A(2) (Lp-PLA(2)) may be positively associated with risk of coronary artery disease, yet little is known about potentially modifiable factors related to Lp-PLA(2). OBJECTIVE The aim of this study was to determine dietary, lifestyle, and clinical measures associated with Lp-PLA(2) activity. DESIGN We measured Lp-PLA(2) activity in 853 female participants of the Nurses' Health Study and 878 male participants of the Health Professionals Follow-Up Study who were free of cancer and cardiovascular disease. Multivariable linear regression models were used to assess the relation between potentially modifiable factors and Lp-PLA(2). RESULTS The replacement of 5% of energy from carbohydrates with energy from protein was associated with 2.2 nmol . min(-1) . mL(-1) lower levels of Lp-PLA(2) (95% CI: -3.1, -0.4) activity, and every 15-g/d increase in alcohol consumption was associated with 4.4 nmol . min(-1) . mL(-1) lower levels of Lp-PLA(2) activity (95% CI: -6.4, -2.4). Smoking (beta = 10.2; 95% CI: 4.8, 15.5), being overweight (beta = 7.5; 95% CI: 3.6, 11.3), aspirin use (beta = 6.0; 95% CI: 2.1, 10.0), hypercholesterolemia (beta = 15.0; 95% CI: 11.3, 18.8), and age (beta = 2.5; 95% CI: 1.34, 3.74) were associated with elevated Lp-PLA(2) activity, whereas postmenopausal hormone use (beta = -15.8; 95% CI: -19.4, -12.1) and cholesterol medication use (beta = -9.6; 95% CI: -18.2, -1.1) were inversely associated. CONCLUSION We found that not smoking, use of postmenopausal hormones, having a body mass index (in kg/m(2)) < or =25, increased alcohol consumption, and increased protein consumption all represent potential modifiable factors that may favorably influence Lp-PLA(2) activity.
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Affiliation(s)
- Ida J Hatoum
- Department of Nutrition and Epidemiology, Harvard School of Public Health, Boston MA, USA
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Kim CX, Bailey KR, Klee GG, Ellington AA, Liu G, Mosley TH, Rehman H, Kullo IJ. Sex and ethnic differences in 47 candidate proteomic markers of cardiovascular disease: the Mayo Clinic proteomic markers of arteriosclerosis study. PLoS One 2010; 5:e9065. [PMID: 20140090 PMCID: PMC2816715 DOI: 10.1371/journal.pone.0009065] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2009] [Accepted: 11/20/2009] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND Cardiovascular disease (CVD) susceptibility differs between men and women and varies with ethnicity. This variability is not entirely explained by conventional CVD risk factors. We examined differences in circulating levels of 47 novel protein markers of CVD in 2561 men and women of African-American (AA) and non-Hispanic White (NHW) ethnicity, enrolled at geographically distinct sites. METHODOLOGY/PRINCIPAL FINDINGS Participants (1,324 AAs, mean age 63.5 y, 71% women; 1,237 NHWs, mean age 58.9 y, 57% women) belonged to sibships ascertained on the basis of hypertension. Solid-phase immunoassays and immunoturbidometric, clot-based, chromogenic, and electrophoretic assays were used to measure the 47 protein markers in plasma or serum. Marker levels were log transformed and outliers were adjusted to within 4 SD. To identify markers independently associated with sex or ethnicity, we employed multivariable regression analyses that adjusted for conventional risk factors, prior history of CVD, medication use and lifestyle factors (physical activity, alcohol consumption and education). Generalized estimating equations were used to correct for intrafamilial correlations. After adjustment for the above covariates, female sex was associated with higher levels of 29 markers and lower levels of 6 markers. Female sex was independently associated with higher levels of several inflammatory markers as well as lipoproteins, adipokines, natriuretic peptides, vasoconstrictor peptides and markers of calcification and thrombosis. AA ethnicity was associated with higher levels of 19 markers and lower levels of 6 markers, including higher levels of several inflammatory makers, higher leptin and lower adiponectin levels, lower levels of vasodilator-natriuretic peptides, higher levels of vasoconstrictor-antidiuretic peptides and markers of calcification and thrombosis. CONCLUSIONS/SIGNIFICANCE Plasma levels of several novel protein markers of CVD differ significantly in the context of sex and ethnicity. These results have implications for individualized CVD risk assessment.
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Affiliation(s)
- Charles X. Kim
- Mayo Clinic, Rochester, Minnesota, United States of America
| | - Kent R. Bailey
- Mayo Clinic, Rochester, Minnesota, United States of America
| | - George G. Klee
- Mayo Clinic, Rochester, Minnesota, United States of America
| | | | - Guanghui Liu
- Mayo Clinic, Rochester, Minnesota, United States of America
| | | | - Hamid Rehman
- Mayo Clinic, Rochester, Minnesota, United States of America
| | - Iftikhar J. Kullo
- Mayo Clinic, Rochester, Minnesota, United States of America
- * E-mail:
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Lipoprotein-Associated Phospholipase A2 and C-Reactive Protein for Measurement of Inflammatory Risk: Independent or Complementary? CURRENT CARDIOVASCULAR RISK REPORTS 2009. [DOI: 10.1007/s12170-009-0073-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Khera A, Vega GL, Das SR, Ayers C, McGuire DK, Grundy SM, de Lemos JA. Sex differences in the relationship between C-reactive protein and body fat. J Clin Endocrinol Metab 2009; 94:3251-8. [PMID: 19567538 PMCID: PMC2741708 DOI: 10.1210/jc.2008-2406] [Citation(s) in RCA: 126] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND C-reactive protein (CRP) levels are significantly influenced by adiposity and are higher in women compared with men. We postulated that there may be sex differences in the relationship between CRP and body fat. METHODS We measured CRP and body fat parameters in 1166 men and 1413 women ages 30-65 in the population-based Dallas Heart Study. Total fat mass (TFM) was measured using dual-energy x-ray absorptiometry scanning and was subdivided into truncal fat (TrF) and lower body fat (LBF). The TrF/LBF ratio was used to measure fat distribution. Abdominal fat compartments (ip and sc) were measured using magnetic resonance imaging. Log-transformed CRP was used as the outcome variable in sex-combined models with interaction tests. RESULTS Median body mass index was higher in women than in men (29.9 vs. 28.2 kg/m(2)), as was TFM (29.7 vs. 20.5 kg) (P < 0.001 each). TFM was linearly associated with log CRP in both sexes, with a steeper slope of association in women (P interaction = 0.003). CRP increased to a greater degree with increasing TrF (P interaction = 0.0004) in women compared with men, even after adjustment for TFM; values were similar across sexes for LBF. Fat distribution (TrF/LBF ratio) was more strongly associated with CRP levels in women vs. men (R(2) adjusted for TFM = 0.04 vs. 0.008). Greater increases in CRP were also observed with increasing ip and sc fat in women compared with men. CONCLUSIONS The quantity and distribution of body fat influence CRP to a greater extent in women compared with men. Adiposity as a contributor to subclinical inflammation may be particularly relevant in women.
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Affiliation(s)
- Amit Khera
- Division of Cardiology, University of Texas Southwestern Medical Center, 5909 Harry Hines Boulevard, Dallas, Texas 75390-9047, USA.
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Detopoulou P, Nomikos T, Fragopoulou E, Panagiotakos DB, Pitsavos C, Stefanadis C, Antonopoulou S. Lipoprotein-associated phospholipase A2 (Lp-PLA2) activity, platelet-activating factor acetylhydrolase (PAF-AH) in leukocytes and body composition in healthy adults. Lipids Health Dis 2009; 8:19. [PMID: 19500354 PMCID: PMC2703628 DOI: 10.1186/1476-511x-8-19] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2009] [Accepted: 06/05/2009] [Indexed: 11/10/2022] Open
Abstract
Background Lipoprotein-associated phospholipase A2 (Lp-PLA2) also known as serum platelet activating factor acetylhydrolase (PAF-AH) activity constitutes a novel risk marker for cardiovascular disease. Leukocytes constitute one main cellular source of circulating Lp-PLA2. The aim of the present study was to evaluate the association of both serum and leukocyte PAF-AH activities with fat distribution and lean tissue. One hundred healthy volunteers without cardiovascular disease history participated in this study (n = 52 men, 44 ± 13 years and n = 48 women, 43 ± 13 years). Body composition was assessed with dual-energy X-ray absorptiometry, while anthropometrical indices were also measured. The activity of Lp-PLA2 and levels of lipid and glycemic parameters were determined in fasting samples. Results Mean Lp-PLA2 activity was 24.8 ± 4.5 and 19.6 ± 5.0 nmol/min/mL in men and women, respectively (P < 0.001). Mean activity of PAF-AH in leukocyte homogenates was 386 ± 127 pmol/min/mg and 292 ± 92 pmol/min/mg in men and women, correspondingly (P < 0.001). In multiple regression models upper and total adiposity measures were positively associated with Lp-PLA2 activity in men after adjusting for LDL-cholesterol, age, smoking, hs-CRP and physical activity, whereas no associations were found with PAF-AH leukocyte homogenates activity. Hierarchical analysis revealed that the variables with the highest explanatory ability of Lp-PLA2 activity in men, were DXA deriving L1–L4 region of interest and arms fat (increase in R2 = 0.136, P = 0.005 and increase in R2 = 0.118, P = 0.009, respectively), followed by trunk fat and total fat. In women, no association of body composition variables with Lp-PLA2 nor PAF-AH leukocyte homogenates activity was found. Conclusion Lp-PLA2 activity is differentiated across levels of adiposity and topology of adipose tissue, whereas no association was found regarding PAF-AH leukocyte homogenates activity. Our findings suggest that Lp-PLA2 may compensate for the adiposity-associated increases in inflammatory and oxidative burden, in men.
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