scholarly journals A Pilot Study Providing Evidence for a Relationship between a Composite Lifestyle Score and Risk of Higher Carotid Intima-Media Thickness: Is There a Link to Oxidative Stress?

2018 ◽  
Vol 2018 ◽  
pp. 1-11 ◽  
Author(s):  
Neda Seyedsadjadi ◽  
Jade Berg ◽  
Ayse A. Bilgin ◽  
Ross Grant
Keyword(s):  
Oxidative Stress ◽  
Cell Damage ◽  
Interleukin 1 ◽  
Antioxidant Properties ◽  
Intima Media Thickness ◽  
Carotid Intima Media Thickness ◽  
Blood Collection ◽  
Lifestyle Behaviours ◽  
Media Thickness ◽  
Increased Risk

Lifestyle behaviours have been closely linked to the progressive cell damage associated with oxidative stress (OS) and the development of cardiovascular disease (CVD). Early detection of lifestyle-linked OS may therefore be useful in the early identification of prodromal disease. To test this hypothesis, this study assessed the relationship between a comprehensive redox balance lifestyle score (RBLS) and carotid intima-media thickness (CIMT), a recognized marker for CVD, and plasma biomarkers of OS. In a cross-sectional study design, 100 apparently healthy middle-aged participants were asked to complete a comprehensive lifestyle questionnaire, followed by DXA scanning, CIMT ultrasonography, and blood collection. The RBLS was composed of lifestyle components with pro- and antioxidant properties with a higher score indicative of lower oxidative activity. Multiple linear regression and logistic regression analysis were performed for statistical analysis. The RBLS was significantly associated with the risk for increased CIMT that was independent of conventional CVD risk factors (χ29=35.60,P≤0.001). The adjusted model explained 42.4% of the variance in CIMT. Participants with RBLS below the median were at significantly increased risk of higher CIMT compared to participants with RBLS above the median (OR=3.60, 95% CI: 1.19–10.88,P=0.023). Significant associations were also observed between the RBLS, plasma total antioxidant capacity (TAC) (r99=0.28,P=0.006), hydroperoxide (HPX) (rs99=−0.28,P=0.005), TAC/HPX ratio (r98=0.41,P≤0.001),γ-glutamyltransferase (r97=−0.23,P=0.024), uric acid (r98=−0.20,P=0.045), and inflammatory C-reactive protein (rs97=−0.25,P=0.012) and interleukin-1β(r97=−0.21,P=0.040). These findings highlight the importance of identifying the collective influence of lifestyle behaviours on OS activity and its potential to remodel the vascular endothelium.

Influence of obstructive sleep apnea on ischemia-modified albumin levels and carotid intima-media thickness

2016 ◽  
Vol 64 (5) ◽  
pp. 1035-1041 ◽  
Author(s):  
Harun Karamanli ◽  
Aysel Kiyici ◽  
Bilal Arik ◽  
Duran Efe ◽  
Recep Akgedik
Keyword(s):  
Oxidative Stress ◽  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Intima Media Thickness ◽  
Carotid Intima Media Thickness ◽  
Control Group ◽  
Ischemia Modified Albumin ◽  
Media Thickness ◽  
Obstructive Sleep ◽  
Increased Risk

Obstructive sleep apnea (OSA) is associated with an increased risk of atherosclerosis. Carotid intima-media thickness (CIMT) is strongly associated with the presence of significant risk factors for cardiovascular disturbances. A disturbance in the oxidative/antioxidative balance is involved in the pathogenesis of OSA and cardiovascular diseases. Ischemia-modified albumin (IMA) is suggested as a novel marker of oxidative stress; IMA can be defined as decreased binding of transitional metal ions to serum albumin in oxidative status. The purpose of this research was to evaluate the influence of OSA on IMA levels and CIMT. In total, 61 individuals with OSA with no comorbidities and 24 healthy controls with a similar body mass index and age were enrolled in this study. Serum levels of IMA, CIMT (estimated radiologically), and polysomnographic parameters, were determined and interpreted. Serum IMA levels were significantly higher in individuals with OSA compared with the control group (p=0.0003). CIMT was significantly higher in the OSA group compared with the control group (0.88± 0.26 mm vs 0.75±0.17 mm, p=0.005). The CIMT and serum IMA levels were positively correlated with the apnea-hypopnea index (r=0.35 and r=0.32, respectively), and with the oxygen desaturation index (r=0.34 and r=0.29, respectively) at baseline. Increased IMA levels and CIMT may be related to increased oxidative stress and risk of atherosclerosis in individuals with OSA.

scholarly journals Carotid Intima‐Media Thickness and the Risk of Sudden Cardiac Death: The ARIC Study and the CHS

2020 ◽  
Vol 9 (19) ◽  
Author(s):  
Takeki Suzuki ◽  
Wanmei Wang ◽  
Anthony Wilsdon ◽  
Kenneth R. Butler ◽  
Selcuk Adabag ◽  
...  
Keyword(s):  
Sudden Cardiac Death ◽  
Carotid Artery ◽  
Common Carotid Artery ◽  
Cardiac Death ◽  
Intima Media Thickness ◽  
Carotid Intima Media Thickness ◽  
Cardiovascular Health Study ◽  
Media Thickness ◽  
Increased Risk ◽  
Aric Study

Background Sudden cardiac death (SCD) is associated with severe coronary heart disease in the great majority of cases. Whether carotid intima‐media thickness (C‐IMT), a known surrogate marker of subclinical atherosclerosis, is associated with risk of SCD in a general population remains unknown. The objective of this study was to investigate the association between C‐IMT and risk of SCD. Methods and Results We examined a total of 20 862 participants: 15 307 participants of the ARIC (Atherosclerosis Risk in Communities) study and 5555 participants of the CHS (Cardiovascular Health Study). C‐IMT and common carotid artery intima‐media thickness was measured at baseline by ultrasound. Presence of plaque was judged by trained readers. Over a median of 23.5 years of follow‐up, 569 participants had SCD (1.81 cases per 1000 person‐years) in the ARIC study. Mean C‐IMT and common carotid artery intima‐media thickness were associated with risk of SCD after adjustment for traditional risk factors and time‐varying adjustors: hazard ratios (HRs) with 95% CIs for fourth versus first quartile were 1.64 (1.15–2.63) and 1.49 (1.05–2.11), respectively. In CHS, 302 participants developed SCD (4.64 cases per 1000 person‐years) over 13.1 years. Maximum C‐IMT was associated with risk of SCD after adjustment: HR (95% CI) for fourth versus first quartile was 1.75 (1.22–2.51). Presence of plaque was associated with 35% increased risk of SCD: HR (95% CI) of 1.37 (1.13–1.67) in the ARIC study and 1.32 (1.04–1.68) in CHS. Conclusions C‐IMT was associated with risk of SCD in 2 biracial community‐based cohorts. C‐IMT may be used as a marker of SCD risk and potentially to initiate early therapeutic interventions to mitigate the risk.

Interrelationship Of Oxidative Stress And Inflammatory State With Carotid Intima-Media Thickness

2019 ◽  
Vol 287 ◽  
pp. e175
Author(s):  
M. Janczura ◽  
T. Iwaniec ◽  
A. Gielicz ◽  
K. Kotula-Horowitz ◽  
A. Stanisz ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Intima Media Thickness ◽  
Carotid Intima Media Thickness ◽  
Media Thickness ◽  
Inflammatory State

Are Uremia, Diabetes, and Atherosclerosis Linked With Impaired Antioxidant Mechanisms?

2008 ◽  
Vol 56 (2) ◽  
pp. 545-552 ◽  
Author(s):  
Belda Dursun ◽  
Evrim Dursun ◽  
Irfan Capraz ◽  
Tomris Ozben ◽  
Ali Apaydin ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Intima Media Thickness ◽  
Chronic Kidney Failure ◽  
Carotid Intima Media Thickness ◽  
Diabetic Patients ◽  
Carotid Imt ◽  
Accelerated Atherosclerosis ◽  
Media Thickness ◽  
Diabetes Status ◽  
Antioxidant Mechanisms

BackgroundOxidative stress is a new risk factor for atherosclerosis. Increased oxidative stress in hemodialysis (HD) patients may arise from uremia-associated metabolic/humoral abnormalities and bioincompatibility of dialysis. Patients with diabetes mellitus (DM) may be subject to an additional risk. Respective influences of uremia, diabetes, and HD duration in accelerated atherosclerosis and oxidative stress have not been clarified yet.MethodsThe study was performed on 24 nondiabetic HD patients, 23 diabetic HD patients, 20 stages 3 to 4 chronic kidney disease patients, and 21 diabetic patients without overt nephropathy. Carotid intima-media thickness, a surrogate of atherosclerosis, was measured by high-resolution B-mode ultrasonography. Oxidant status was determined by lipid peroxidation as expressed by malondialdehyde (MDA); antioxidant status was determined by superoxide dismutase, catalase, glutathione peroxidase, reduced intracellular glutathione, and plasma thiol.ResultsIntima-media thickness (IMT) was higher in patients undergoing HD but not different between nondiabetic HD patients and diabetic HD patients. No correlation was found between the duration of HD and intima-media thickness. Antioxidants were generally lower in HD patients. Intima-media thickness was positively correlated with MDA and negatively correlated with plasma thiol. Among other risk factors, only age was correlated with intima-media thickness.ConclusionsIncreased carotid IMT in HD patients is independent of duration of HD or diabetes status. Age and MDA are the significant predictors of carotid IMT. Increased oxidative stress due to impaired antioxidant mechanisms, particularly reduced plasma thiol redox potential, may account for accelerated atherosclerosis in high-risk patients with chronic kidney failure and/or DM.

Abstract P074: Restless Legs Syndrome and Carotid Intima-Media Thickness in Women

Circulation ◽  
2015 ◽  
Vol 131 (suppl_1) ◽  
Author(s):  
Karen Jacobo ◽  
Adriana Monge ◽  
Eduardo Ortiz-Panozo ◽  
Elsa Yunes ◽  
Andres Catzin-Khulmann ◽  
...  
Keyword(s):  
Restless Legs Syndrome ◽  
Subclinical Atherosclerosis ◽  
Intima Media Thickness ◽  
Carotid Intima Media Thickness ◽  
Mean Difference ◽  
Lower Limbs ◽  
Cross Sectional ◽  
Restless Legs ◽  
Media Thickness ◽  
Increased Risk

Introduction: Restless legs syndrome (RLS) is a common chronic disorder characterized by an irresistible need to move the lower limbs that is usually worse in the evening and is associated with sleep disturbances. RLS has been associated with hypertension and has been proposed as a marker for increased cardiovascular risk. Hypothesis: Individuals with RLS have an increased common carotid intima-media thickness (cIMT) relative to individuals without RLS. Methods: We evaluated cross-sectional relation of RLS and cIMT in 1,147 disease-free Mexican women of the Mexican Teachers’ Cohort. In 2011, participants responded to a follow-up questionnaire that included standardized questions addressing the four minimal diagnostic criteria of the International Restless Legs Study Group. Participants were asked: “Do you have unpleasant leg sensations (like crawling, loss of sensation or pain) combined with restlessness and an urge to move your legs?”, “Do these symptoms occur only at rest?”, “Does moving improve these symptoms?”, “Are these symptoms worse in the evening or at night compared with the morning?” Women who answered yes to all the four questions were defined as having RLS. Between 2012 and 2013, a subsample of participants were invited for a clinical visit where neurologists assessed cIMT with an ultrasound. cIMT measurements were found to be reproducible in a substudy in 52 participants (intra-class correlation=0.89). We defined subclinical atherosclerosis as a cIMT ≥0.8 mm or the presence of plaque. Results: Among women with a mean age of 48.2 (SD±4.3), the prevalence of RLS was 14.2% (cases, 163). The age-adjusted mean difference of cIMT comparing participants with RLS to those without RLS was 0.009mm (95%CI -0.004 to 0.023). After further adjustment for diabetes, hypercholesterolemia, migraine, oral contraceptive use, menopause, smoking, body mass index, physical activity and alcohol, the mean difference of cIMT comparing participants with and without RLS was not statistically different (0.007mm; 95%CI -0.007 to 0.021). The prevalence of subclinical atherosclerosis was 27% (n=44) in those with RLS and 21.9% (n=215) in those without RLS. The age-adjusted OR comparing women with RLS to those without RLS was 1.23 (95%CI 0.83-1.82). In the multivariable model the OR remained non-significant (1.16, 95%CI 0.77-1.74). Conclusions: In this cross-sectional study in middle-aged women, RLS was not associated to cIMT. Our results do not support the observation that individuals with RLS are at an increased risk for cardiovascular disease.

Carotid intima media thickness, oxidative stress, and inflammation in children with chronic kidney disease

2013 ◽  
Vol 29 (2) ◽  
pp. 273-281 ◽  
Author(s):  
Juan Antonio Garcia-Bello ◽  
Rita A. Gómez-Díaz ◽  
Alicia Contreras-Rodríguez ◽  
Juan O. Talavera ◽  
Rafael Mondragón-González ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Chronic Kidney Disease ◽  
Kidney Disease ◽  
Intima Media Thickness ◽  
Carotid Intima Media Thickness ◽  
Media Thickness
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