scholarly journals Markers of Increased Cardiovascular Risk in Postmenopausal Women: Focus on Oxidized-LDL and HDL Subpopulations

2013 ◽  
Vol 35 ◽  
pp. 85-96 ◽  
Author(s):  
Filipa Mascarenhas-Melo ◽  
José Sereno ◽  
Edite Teixeira-Lemos ◽  
Sandra Ribeiro ◽  
Petronila Rocha-Pereira ◽  
...  
Keyword(s):  
Uric Acid ◽  
Cardiovascular Risk ◽  
Postmenopausal Women ◽  
Oxidized Ldl ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Population Based ◽  
Paraoxonase 1 ◽  
Healthy Population ◽  
Necrosis Factor Alpha

Objective. To evaluate the effect of gender and menopause in cardiovascular risk (CVR) in a healthy population based on both classical and nontraditional markers.Methods. 56 men and 68 women (48 pre- and 20 postmenopause) were enrolled in the study. The following markers were analyzed: blood pressure (BP), body mass index (BMI), waist circumference (WC), glucose, total cholesterol (total-c), triglycerides (TGs), low-density lipoprotein cholesterol (LDL-c), oxidized-LDL (Ox-LDL), HDL-c and subpopulations, paraoxonase-1 activity, hsCRP, uric acid, tumor necrosis factor alpha (TNF-α), adiponectin, vascular endothelial growth factor (VEGF), and intercellular adhesion molecular 1 (ICAM1).Results.Relative to the women, men present significantly increased BMI, WC, BP, glucose, total-c, TGs, LDL-c, Ox-LDL, uric acid, and TNF-αand reduced adiponectin and total and large HDL-c. The protective profile of women is lost after menopause with a significantly increased BMI, WC, BP, glucose, LDL-c, Ox-LDL, hsCRP, and VEGF and decreased total and large HDL-c. Significant correlations were found in women population and in postmenopausal women between Ox-LDL and total, large, and small HDL-c and between TNF-αand total, large, and small HDL-c, LDL-c, and Ox-LDL.Conclusions. Men present higher CVR than women who lost protection after menopause, evidenced by nontraditional markers, including Ox-LDL and HDL subpopulations.

scholarly journals New Markers of Early Cardiovascular Risk in Multiple Sclerosis Patients: Oxidized-LDL Correlates with Clinical Staging

2013 ◽  
Vol 34 (5) ◽  
pp. 341-348 ◽  
Author(s):  
Filipe Palavra ◽  
Daniela Marado ◽  
Filipa Mascarenhas-Melo ◽  
José Sereno ◽  
Edite Teixeira-Lemos ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Cardiovascular Risk ◽  
Oxidized Ldl ◽  
Density Lipoprotein ◽  
Paraoxonase 1 ◽  
Clinical Staging ◽  
Clinical Activity ◽  
Serum Triglycerides ◽  
Cross Sectional ◽  
Multiple Sclerosis Patients

OBJECTIVES: This study aimed to characterize a population of multiple sclerosis (MS) patients in terms of traditional and new cardiovascular risk factors and assess their putative correlation with clinical disease activity (evaluated by the Expanded Disability Status Scale [EDSS]).METHODS: Thirty relapsing MS patients and 66 subjects, matched by age and sex, were enrolled in this cross-sectional study. For each subject, anthropometric data were collected and classical biochemical (including lipid profile, glucose and C reactive protein [CRP] levels) and novel markers (paraoxonase 1 [PON1] enzyme activity and contents of high-density lipoprotein [HDL] cholesterol, oxidized low-density lipoprotein [Ox-LDL], tumor necrosis factor [TNF]-alfa, vascular endothelial growth factor [VEGF] and adiponectin) were studied.RESULTS: In patients group, 23 women and 7 men were included, aged 35.00 (28.25–40.25) years and scoring a median of 2.00 (1.50–3.13) in EDSS. Comparing with controls, the most relevant differences encountered were: increased serum triglycerides (P< 0.001), Ox-LDL (P< 0.001) as well as Ox-LDL/LDL ratio and reduced small HDL (P= 0.040), accompanied by a trend to increased VEGF concentration. LDL content, especially Ox-LDL, showed positive and significant correlation with EDSS (r= 0.458;P= 0.011) and VEGF (r= 0.453;P= 0.014).CONCLUSIONS: MS patients presented a profile of early CV risk, being Ox-LDL contents a putative good marker and having correlation with the clinical activity of the disease.

Higher Cardiovascular Risk in Common Variable Immunodeficiency and X-Linked Agammaglobulinaemia Patients

2015 ◽  
Vol 66 (4) ◽  
pp. 237-241 ◽  
Author(s):  
Daniele Gonçalves Vieira ◽  
Beatriz Tavares Costa-Carvalho ◽  
Sonia Hix ◽  
Rosangela da Silva ◽  
Milena S.G. Correia ◽  
...  
Keyword(s):  
Cardiovascular Risk ◽  
Common Variable Immunodeficiency ◽  
Low Density Lipoprotein ◽  
Cholesterol Acyltransferase ◽  
Density Lipoprotein ◽  
Lipoprotein Cholesterol ◽  
Tnf Alpha ◽  
Necrosis Factor Alpha ◽  
And Gender ◽  
Common Variable

Introduction: Common variable immunodeficiency and X-linked agammaglobulinaemia are primary immunodeficiencies classified as antibody deficiencies, and they both result in hypogammaglobulinaemia. Objective: Evaluate the lipid profile and other cardiovascular risk biomarkers in CVID and XLA patients. Methods: In total, 24 patients and 12 healthy controls matched by age and gender were included in the study. We evaluated anthropometric measurements, and seric total cholesterol (TC), high-density lipoprotein cholesterol (HDL-c), low-density lipoprotein cholesterol (LDL-c), triglycerides (TG), apo A-I, small dense LDL (sdLDL), C-reactive protein (CRP), and tumour necrosis factor alpha (TNF-alpha), myeloperoxidase (MPO), cholesteryl ester transfer protein (CETP), and lecithin cholesterol acyltransferase (LCAT) were assessed. Results: CRP (p = 0.008) and TNF-alpha (p < 0.001) concentrations were significantly higher, whereas HDL-c (p = 0.025) and apo A-I (p = 0.013) levels were significantly lower in patients than in the controls. In the patient group, a negative and significant correlation was observed between HDL-c and TNF-alpha (r = -0.406; p = 0.049) and between HDL-c and TG (r = -0.641; p = 0.001). Conclusion: Common variable immunodeficiency and X-linked agammaglobulinaemia patients presented themselves with increased inflammatory markers associated with a decreased HDL-c and apo A-I levels, which can predispose to a high cardiovascular risk.

scholarly journals Distribution of C-reactive Protein and Its Association with Cardiovascular Risk Factors in a Population-Based Sample of Chinese

2010 ◽  
Vol 28 (6) ◽  
pp. 333-342 ◽  
Author(s):  
Yanfang Zhao ◽  
Rui Wang ◽  
Xiuqiang Ma ◽  
Xiaoyan Yan ◽  
Zhansai Zhang ◽  
...  
Keyword(s):  
Risk Factors ◽  
Cardiovascular Risk ◽  
Cardiovascular Risk Factors ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Population Based ◽  
Lipoprotein Cholesterol ◽  
Urban Region ◽  
C Reactive Protein ◽  
Reactive Protein

C-reactive protein (CRP) levels vary remarkably with ethnic status. Its distribution and correlates should be investigated across diverse populations, and these were limited in a representative Chinese population. We investigated 3133 participants aged 18–80 years in Shanghai, which were sampled using a randomized, stratified, multi-stage sampling method. The distribution of CRP was highly skewed toward a lower level. The median CRP was 0.55 mg/L (0.61 mg/L in males, 0.51 mg/L in females). Participants living in urban region had higher CRP levels than those in rural region (0.67 vs. 0.46 mg/L). CRP levels showed significant correlation with traditional cardiovascular risk factors, and it was most strongly correlated with body mass index. Multivariate logistic regression analyses indicated that elevated CRP (being in the top 15 percentile of CRP; CRP ≥ 2.09 mg/L) was significantly associated with obesity, hypertension, diabetes, low high-density lipoprotein cholesterol, high low-density lipoprotein cholesterol, high triglycerides and cardiovascular disease history. In conclusion, the distribution of CRP in adult Chinese was comparable with that of many other Asian populations but different from that of Western populations. Metabolic impairment was associated with elevated CRP, and CRP levels should be interpreted in conjunction with the lipid profile.

scholarly journals Potential Cardiovascular Risk Protection of Bilirubin in End-Stage Renal Disease Patients under Hemodialysis

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Maria do Sameiro-Faria ◽  
Michaela Kohlova ◽  
Sandra Ribeiro ◽  
Petronila Rocha-Pereira ◽  
Laetitia Teixeira ◽  
...  
Keyword(s):  
Cardiovascular Risk ◽  
Lipid Profile ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Serum Levels ◽  
Paraoxonase 1 ◽  
Low Density ◽  
Genotype Distribution ◽  
Apo B ◽  
Risk Protection

We evaluated the potential cardiovascular risk protection of bilirubin in hemodialysis (HD) patients. An enlarged set of studies were evaluated in 191 HD patients, including hematological study, lipid profile, iron metabolism, nutritional, inflammatory markers, and dialysis adequacy. The TA duplication screening in the UDP-glucuronosyltransferase 1 A1 (UGT1A1) promoter region was also performed. TheUGT1A1genotype frequencies in HD patients were 49.2%, 42.4%, and 8.4% for 6/6, 6/7, and 7/7 genotypes, respectively. Although no difference was found inUGT1A1genotype distribution between the three tertiles of bilirubin, significant differences were found with increasing bilirubin levels, namely, a decrease in platelet, leukocyte, and lymphocyte counts, transferrin, oxidized low-density lipoprotein (ox-LDL), ox-LDL/low-density lipoprotein cholesterol ratio, apolipoprotein (Apo) A, Apo B, and interleukin-6 serum levels and a significant increased concentration of hemoglobin, hematocrit, erythrocyte count, iron, transferrin saturation, Apo A/Apo B ratio, adiponectin, and paraoxonase 1 serum levels. After adjustment for age these results remained significant. Our data suggest that higher bilirubin levels are associated with beneficial effects in HD patients, by improving lipid profile and reducing the inflammatory grade, which might contribute to increase in iron availability. These results suggest a potential cardiovascular risk protection of bilirubin in HD patients.

scholarly journals Implication of Low HDL-c Levels in Patients with Average LDL-c Levels: A Focus on Oxidized LDL, Large HDL Subpopulation, and Adiponectin

2013 ◽  
Vol 2013 ◽  
pp. 1-12 ◽  
Author(s):  
Filipa Mascarenhas-Melo ◽  
José Sereno ◽  
Edite Teixeira-Lemos ◽  
Daniela Marado ◽  
Filipe Palavra ◽  
...  
Keyword(s):  
Risk Factors ◽  
Cardiovascular Risk ◽  
Cardiovascular Risk Factors ◽  
Oxidized Ldl ◽  
Density Lipoprotein ◽  
Serum Glucose ◽  
Paraoxonase 1 ◽  
Pon1 Activity ◽  
Low Hdl ◽  
The Impact

To evaluate the impact of low levels of high density lipoprotein cholesterol (HDL-c) on patients with LDL-c average levels, focusing on oxidative, lipidic, and inflammatory profiles. Patients with cardiovascular risk factors (n=169) and control subjects (n=73) were divided into 2 subgroups, one of normal HDL-c and the other of low HDL-c levels. The following data was analyzed: BP, BMI, waist circumference and serum glucose Total-c, TGs, LDL-c, oxidized LDL, total HDL-c and subpopulations (small, intermediate, and large), paraoxonase-1 (PON1) activity, hsCRP, uric acid, TNF-α, adiponectin, VEGF, and iCAM1. In the control subgroup with low HDL-c levels, significantly higher values of BP and TGs and lower values of PON1 activity and adiponectin were found, versus control normal HDL-c subgroup. However, differences in patients’ subgroups were clearly more pronounced. Indeed, low HDL-c subgroup presented increased HbA1c, TGs, non-HDL-c, Ox-LDL, hsCRP, VEGF, and small HDL-c and reduced adiponectin and large HDL. In addition, Ox-LDL, large-HDL-c, and adiponectin presented interesting correlations with classical and nonclassical markers, mainly in the normal HDL-c patients’ subgroup. In conclusion, despite LDL-c average levels, low HDL-c concentrations seem to be associated with a poor cardiometabolic profile in a population with cardiovascular risk factors, which is better evidenced by traditional and nontraditional CV biomarkers, including Ox-LDL, large HDL-c, and adiponectin.

scholarly journals Role of LOX-1 (Lectin-Like Oxidized Low-Density Lipoprotein Receptor 1) as a Cardiovascular Risk Predictor

2020 ◽  
Author(s):  
Joaquim Barreto ◽  
Sotirios K. Karathanasis ◽  
Alan Remaley ◽  
Andrei C. Sposito
Keyword(s):  
Endothelial Cells ◽  
Cardiovascular Risk ◽  
Neutralizing Antibodies ◽  
Randomized Clinical Trials ◽  
Transmembrane Protein ◽  
Oxidized Ldl ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Low Density

Atherosclerosis, the underlying cause of cardiovascular disease (CVD), is a worldwide cause of morbidity and mortality. Reducing ApoB-containing lipoproteins—chiefly, LDL (low-density lipoprotein)—has been the main strategy for reducing CVD risk. Although supported by large randomized clinical trials, the persistence of residual cardiovascular risk after effective LDL reduction has sparked an intense search for other novel CVD biomarkers and therapeutic targets. Recently, Lox-1 (lectin-type oxidized LDL receptor 1), an innate immune scavenger receptor, has emerged as a promising target for early diagnosis and CV risk prediction and is also being considered as a treatment target. Lox-1 was first described as a 50 kDa transmembrane protein in endothelial cells responsible for oxLDL (oxidized LDL) recognition, triggering downstream pathways that intensify atherosclerosis via endothelial dysfunction, oxLDL uptake, and apoptosis. Lox-1 is also expressed in platelets, where it enhances platelet activation, adhesion to endothelial cells, and ADP-mediated aggregation, thereby favoring thrombus formation. Lox-1 was also identified in cardiomyocytes, where it was implicated in the development of cardiac fibrosis and myocyte apoptosis, the main determinants of cardiac recovery following an ischemic insult. Together, these findings have revealed that Lox-1 is implicated in all the main steps of atherosclerosis and has encouraged the development of immunoassays for measurement of sLox-1 (serum levels of soluble Lox-1) to be used as a potential CVD biomarker. Finally, the recent development of synthetic Lox-1 inhibitors and neutralizing antibodies with promising results in animal models has made Lox-1 a target for drug development. In this review, we discuss the main findings regarding the role of Lox-1 in the development, diagnosis, and therapeutic strategies for CVD prevention and treatment.

Systemic inflammation is linked to low arginine and high ADMA plasma levels resulting in an unfavourable NOS substrate-to-inhibitor ratio: the Hoorn Study

2011 ◽  
Vol 121 (2) ◽  
pp. 71-78 ◽  
Author(s):  
Leonard P. van der Zwan ◽  
Peter G. Scheffer ◽  
Jacqueline M. Dekker ◽  
Coen D. A. Stehouwer ◽  
Robert J. Heine ◽  
...  
Keyword(s):  
Regression Model ◽  
Oxidized Ldl ◽  
Low Density Lipoprotein ◽  
Plasma Concentrations ◽  
Density Lipoprotein ◽  
Population Based ◽  
Reactive Protein ◽  
Substrate Inhibitor ◽  
Adjusted Model ◽  
The Relationship

Inflammation is associated with a reduced availability of NO in the vasculature. We investigated the possible involvement of altered levels of the substrate (arginine) and the inhibitor [ADMA (asymmetric ω-NG,NG-dimethylarginine)] of NOS (NO synthase). Plasma concentrations of arginine and ADMA, the inflammatory markers CRP (C-reactive protein) and MPO (myeloperoxidase), and oxLDL [oxidized LDL (low-density lipoprotein)] were measured in 369 male and 377 female participants (aged 50–87 years) of a population-based cohort study. The arginine/ADMA ratio decreased significantly across increasing tertiles of CRP and MPO. These negative associations remained significant in a linear regression model with both MPO (P=0.002) and CRP (P<0.001) as independent variables and adjusted for age, sex and cardiovascular risk factors. In a fully adjusted regression model, MPO was positively associated with ADMA {5.4 [95% CI (confidence interval), 1.3–9.4] nmol/l change of ADMA per S.D. increase in MPO; P=0.010}, whereas CRP was not (P=0.36). Conversely, in a fully adjusted model, CRP was negatively associated with arginine [−2.8 (95% CI, −4.0 to −1.6) μmol/l arginine per S.D. of CRP; P<0.001], without a significant contribution of MPO (P=0.23). The relationship between MPO and ADMA became stronger with increasing levels of oxLDL (1.8, 5.2 and 8.7 nmol/l ADMA per S.D. of MPO for increasing tertiles of oxLDL), consistent with the ability of MPO to amplify oxidative stress. In contrast, the relationship between CRP and arginine was not modified by levels of oxLDL. In conclusion, an unfavourable NOS substrate/inhibitor ratio may contribute to the reduced NO bioavailability associated with inflammation.

scholarly journals Emergent Biomarkers of Residual Cardiovascular Risk in Patients with Low HDL-c and/or High Triglycerides and Average LDL-c Concentrations: Focus on HDL Subpopulations, Oxidized LDL, Adiponectin, and Uric Acid

2013 ◽  
Vol 2013 ◽  
pp. 1-16 ◽  
Author(s):  
Filipa Mascarenhas-Melo ◽  
Filipe Palavra ◽  
Daniela Marado ◽  
José Sereno ◽  
Edite Teixeira-Lemos ◽  
...  
Keyword(s):  
Risk Factors ◽  
Uric Acid ◽  
Cardiovascular Risk ◽  
Waist Circumference ◽  
Cardiovascular Risk Factors ◽  
Oxidized Ldl ◽  
Paraoxonase 1 ◽  
Hdl Subfractions ◽  
Low Hdl ◽  
The Impact

This study intended to determine the impact of HDL-c and/or TGs levels on patients with average LDL-c concentration, focusing on lipidic, oxidative, inflammatory, and angiogenic profiles. Patients with cardiovascular risk factors (n=169) were divided into 4 subgroups, combining normal and low HDL-c with normal and high TGs patients. The following data was analyzed: BP, BMI, waist circumference and serum glucose, Total-c, TGs, LDL-c, oxidized-LDL, total HDL-c and HDL subpopulations, paraoxonase-1 (PON1) activity, hsCRP, uric acid, TNF-α, adiponectin, VEGF, and iCAM1. The two populations with increased TGs levels, regardless of the normal or low HDL-c, presented obesity and higher waist circumference, Total-c, LDL-c, Ox-LDL, and uric acid. Adiponectin concentration was significantly lower and VEGF was higher in the population with cumulative low values of HDL-c and high values of TGs, while HDL quality was reduced in the populations with impaired values of HDL-c and/or TGs, viewed by reduced large and increased small HDL subfractions. In conclusion, in a population with cardiovascular risk factors, low HDL-c and/or high TGs concentrations seem to be associated with a poor cardiometabolic profile, despite average LDL-c levels. This condition, often called residual risk, is better evidenced by using both traditional and nontraditional CV biomarkers, including large and small HDL subfractions, Ox-LDL, adiponectin, VEGF, and uric acid.

scholarly journals The Effect of Habitual Fat Intake, IL6 Polymorphism, and Different Diet Strategies on Inflammation in Postmenopausal Women with Central Obesity

Nutrients ◽  
2019 ◽  
Vol 11 (7) ◽  
pp. 1557 ◽  
Author(s):  
Agata Chmurzynska ◽  
Agata Muzsik ◽  
Patrycja Krzyżanowska-Jankowska ◽  
Jarosław Walkowiak ◽  
Joanna Bajerska
Keyword(s):  
Postmenopausal Women ◽  
Mononuclear Cells ◽  
Controlled Trial ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Fat Intake ◽  
Food Diary ◽  
Peripheral Blood Mononuclear ◽  
Necrosis Factor Alpha ◽  
Factor Alpha

The hypothesis that habitual fat intake, the IL6 genotype, the Mediterranean diet or the central European diet for 16 weeks affect biomarkers of inflammation in centrally obese postmenopausal women, was tested in a randomized controlled trial. Dietary intake was assessed using a three-day food diary. Lipid parameters were measured using a Beckman Coulter AU analyzer. Transcription of TNF and IL6 genes was analyzed in peripheral blood mononuclear cells using real-time PCR. Concentrations of tumor necrosis factor alpha (TNFα) and interleukin 6 (IL6) were measured with ELISA. rs1800795 polymorphism of IL6 was analyzed using hydrolyzing probes. Higher energy intake from fat was associated with higher IL6 levels (p < 0.05). Significantly (p < 0.01) lower total cholesterol (T-C) and low-density lipoprotein cholesterol (LDL-C) concentrations were observed in the GG IL6 rs1800795 genotype group. Both diets significantly (p < 0.001) decreased TNFα concentrations. Neither IL6 gene transcription levels nor blood IL6 concentrations were affected by them. Our findings confirm that habitual fat intake may affect inflammation. The rs1800795 IL6 polymorphism alone did not significantly affect body weight or body composition in aimed group, but C-allele carriers had higher levels of T-C and LDL-C. This polymorphism did not affect inflammation. Both diets may lead to a decrease in TNFα concentration.

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