Atherosclerotic Risk Factors Research Articles

Differences in IgG afucosylation between groups with and without carotid atherosclerosis

BackgroundA previous study demonstrated that N-glycosylation profiles of IgG are associated with subclinical atherosclerosis in a British population. However, the generalisability of this finding to other ethnic groups remains to be investigated, and it has yet to account for additional traditional atherosclerotic risk factors. The present study, thus, aims to explore IgG N-glycosylation profiles in Han Chinese with atherosclerosis, and their potential role in atherosclerosis, while controlling for traditional atherosclerotic risk factors.MethodsData of this case-control study were obtained from an established umbrella Health Examination Cohort Study (registration number: ChiCTR2100048740). The investigation was conducted at the Health Care Centre of the First Affiliated Hospital of Shantou University Medical College in China, from August 1, 2021, to July 31, 2022. A sample of 69 carotid atherosclerosis (CAS) cases was recruited from the umbrella cohort, along with 69 controls without carotid atherosclerosis, matched by traditional atherosclerosis-related risk factors, including gender, age, smoking, alcohol consumption, hypertension, diabetes, dyslipidemia and obesity. Subsequently, serum IgG N-glycosylation was profiled using Ultra-Performance Liquid Chromatography.ResultsAfter propensity score matching, the relative abundance of IgG fucosylation in CAS cases was significantly lower than that in controls [95.32 (92.96, 95.99) vs. 95.96 (94.70, 96.58), P = 0.022]. The traditional atherosclerosis-related risk factors showed no statistically significant difference between CAS cases and controls (P > 0.05).ConclusionsThe reduced fucosylation of IgG in CAS cases underscores the pivotal role of afucosylation in CAS. Enhancing the inflammatory capability of IgG via initiating antibody-dependent cell-mediated cytotoxicity could be the potential mechanism behind this, which should be further verified by functional studies.

Prediction of cardiovascular events and all-cause mortality using race and race-free estimated glomerular filtration rate in African Americans: the Jackson Heart Study

BackgroundNew Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equations without a race adjustment were developed to estimate the glomerular filtration rate (eGFR). We aimed to compare the performance of five CKD-EPI eGFR equations, with or without race, in predicting cardiovascular disease (CVD) events and all-cause mortality in Black Americans from the Jackson Heart Study.MethodsJHS is an ongoing population-based prospective cohort study of African Americans in the Jackson, Mississippi, metropolitan area. Five CKD-EPI equations were used to estimate GFR at baseline using serum creatinine (Cr) or cystatin C (cys), including 2009 eGFRcr(ASR [age, sex, race]), 2021 eGFRcr(AS [age and sex]), 2012 eGFRcr-cys(ASR), 2021 eGFRcr-cys(AS), 2012 eGFRcys(AS). Endpoints were incident CVD events and all-cause mortality. Cox proportional hazards regression was used to assess the associations between different eGFRs and outcomes adjusting for atherosclerotic risk factors. Harrell’s C-statistics and Net Reclassification Index (NRI) were used to assess the predictive utility.ResultsAmong 5,129 participants (average age 54.8 ± 12.8 yrs), 1898 were male (37.0%). eGFRcr(AS) provided lower estimates and resulting in a greater proportion of participants categorized as CKD than eGFRcr(ASR), eGFRcr-cys(ASR), eGFRcr-cys(AS) and eGFRcys(AS). A median follow-up of 13.7 and 14.3 years revealed 411 (9.3%) CVD incidents and 1,207 (23.5%) deaths. Lower eGFRs were associated with CVD incidents and all-cause mortality. eGFRcr-cys(ASR), eGFRcr-cys(AS) and eGFRcys(AS) were strongly associated with incident CVD events and all-cause mortality than eGFRcr(ASR) and eGFRcr(AS). A significant discrimination improvement was found in C-statistics for predicting incident CVD events and all-cause mortality after adding each eGFR measure to the basic model including atherosclerotic risk factors. Across a 7.5% 10-year risk threshold, eGFRcys(AS) improved net classification of all-cause mortality (NRI: 2.19, 95%CI: 0.08, 4.65%).ConclusioneGFR based on creatinine omit race has the lowest mean and detects more CKD patients in Black population. The eGFRs incorporating cystatin C strengthens the association between the eGFR and the risks of incident CVD and all-cause mortality. Cystatin C-based eGFR equations might be more appropriate for predicting CVD and mortality among Black population.

Heterogeneous associations of traditional atherosclerotic risk factors and long-term events in different arterial territories: the EPIC Norfolk prospective population cohort

Abstract Background Atherosclerotic risk factors have been associated with cardiovascular disease (CVD) events in specific arterial territories. However, these observations are limited by relatively short-term follow-up (i.e. ten years) and a focus on a limited number of outcome events. We therefore investigated associations between atherosclerotic risk factors and territory-specific cardiovascular events in a large cohort with ≥20 years follow-up. Methods We included participants without baseline CVD from the European Prospective Investigation of Cancer (EPIC) Norfolk prospective population cohort. The strengths of associations between CVD risk factors (smoking, low-density lipoprotein cholesterol (LDL-c), and systolic blood pressure (SBP)) and the first occurrence of a CVD event were evaluated using a competing risk-adjusted regression model. CVD events were defined as hospitalisations or death due to ischemic heart disease (IHD), ischemic stroke, haemorrhagic stroke, peripheral arterial disease (PAD) or aortic aneurysm (AA). Patients were followed-up until the first event, non-CVD death (competing risk) or end of study (15-03-2018). The model was adjusted for sex, age, diabetes, HDL-c, kidney function and body mass index. LDL-c and SBP were analysed by comparing highest versus lowest quartiles. Smoking (at baseline) was compared to never smoking. Results We included 23,581 participants (56% women) with a median baseline age of 58 years [interquartile range (IQR) 51-66]. During median follow up of 21.3 years (IQR 19.0-22.8), 26.4% of individuals experienced ≥1 CVD event. The first event of occurrence was IHD in 17.3%, ischemic stroke in 3.6%, haemorrhagic stroke in 1.4%, PAD in 3.1% and AA in 1.4%. LDL-c was strongest associated with IHD [adjusted hazard rate (aHR) 1.7, 95% confidence interval (CI) 1.5-1.9], SBP with ischemic stroke (aHR 1.9, 95%CI 1.5-2.5) and smoking with AA (aHR 4.8, 95%CI 3.5-6.5) (Figure 1). Conclusions There is considerable heterogeneity in the associations between atherosclerotic risk factors and long-term, first, territory-specific cardiovascular events. Knowledge of these differences may assist in personalised treatment decisions and risk communication.

Lower modified rodnan skin score values and complement 4 levels are associated with arterial endothelial dysfunction in patients with systemic sclerosis

Abstract Background Systemic sclerosis (SSc) is a multisystem autoimmune disease affecting skin and multiple organs. Although immunopathological evidence supports direct arterial involvement leading to tissue ischemia in SSc, factors associated with arterial involvement are not precisely determined due to the rarity of SSc. In this study, we aimed to investigate aortic stiffness and endothelial functions in patients with SSc. Methods Patients under treatment of our Rheumatology department and healthy controls have been included in our study. Aortic stiffness was examined by pulse wave velocity (PWV) exam and endothelial functions were assessed by flow mediated dilation (FMD). Individuals with known atherosclerotic risk factors were excluded from our study. A thorough biochemical examination of all individuals and immunologic markers of patients with SSc was completed. All of the organ involvements in patients with SSc were noted and modified Rodnan skin score (MRSS) was calculated. Results A total of 61 patients and 75 healthy controls were included in our study. Brachial-ankle PWV values were significantly higher (6.89±0.93 vs 6.49±0.22 m/sec; p:0.001) and brachial FMD values were significantly lower (16.7±6.7 % vs 18.7±3.8 %; p: 0.03) in patients with SSc. We have also grouped individuals according to severe FMD impairment (FMD < 10%). None of the healthy controls had severe impairment whereas 15 patients with SSc had FMD values lower than 10%. Higher anti-smooth muscle (Sm) antibody positiveness (40 % vs 15.4 %), lower complement 4 levels (23.6±16.7 vs 31.1±11.1 mg/dL), higher plasma iron values (70.3±43.6 vs 31.4±45.2 mcg/dL) and lower MRSS values (11.4±4.8 vs 20.7±10.9) were observed in SSc patients with severe FMD impairment. When we have put these variables in multivariate logistic regression analysis (backward elimination model), we have found an independent association of complement 4 levels (OR: 0.03, [95 % CI: 0.01-0.491], p:0.04) and MRSS values (OR: 0.853, [95 % CI: 0.761-0.955], p:0.006) with significant FMD impairment in patients with SSc. Conclusion Arterial stiffness is significantly increased and endothelial functions, as assessed by FMD is significantly decreased in patients with SSc, when compared to healthy controls. Lower complement 4 levels and lower modified Rodnan skin scores seem to be independently associated with significant severe FMD impairment. Although our study included a remarkable amount of patients with SSc, an infrequent autoimmune disease, number of patients included in our study is not adequate to make more precise comments. Further prospective studies with higher amount of patients are required for certain results.

Predictors of adverse cardiac events in a large cohort of patients with antiphospholipid syndrome

Abstract Background Non-valvular cardiac disease in antiphospholipid syndrome (APS) has been modestly evaluated. Aim We wanted to assess the prevalence and evolution of major adverse cardiovascular events(MACE) in a cohort of APS patients. Material and Methods From a large cohort of 181 APS patients included in a study from 2011-2012.year data for the occurrence of MACE in 10 years of follow-up were evaluated in 82 patients (86.6% females, 62.2% with primary (PAPS), and 37.8% patients with APS associated with systemic lupus erythematosus (SLE) (sAPS)). At the inclusion in all patients, a transthoracic echocardiography study for the assessment of dimensions and functionality of the left and right heart along with valvular functions and morphology. Standard atherosclerotic risk factors prevalence was analyzed. Antiphospholipid antibodies(aPL) analysis included the detection of aCL (IgG/IgM), ß2GPI (IgG/IgM), and LA, and all patients were treated according to the valid guidelines by the rheumatologist. Data regarding the occurrence of new myocardial infarction (MI), cerebrovascular events (CVI), arterial and/or venous thrombosis, heart failure (HF), and cardiovascular death (considered as MACE) have been collected 10 years after inclusion. Results The prevalence of standard atherosclerotic risk factors was less than 40% in both study groups. Left ventricle ejection fraction(LVEF) was over 45% in more than 90% of patients in both groups (p=0.246) with valvular dysfunction present in 49% of PAPS and 58.1% of sAPS patients (p=0.426). 9.8% PAPS and 12.9% sAPS had coronary artery disease(CAD) (p=0.724) and HF was present in 7.8% PAPS and 3.2% sAPS (p=0.645). MACE occurred in 17.6% of PAPS and 22.6% of sAPS (p=0.585). The new MI occurred in 9.8% of PAPS and 9.7% of sAPS (p=1.000), CVI in 5.9% of PAPS and 3.2% of sAPS (p=1.000), HF in 5.9% of PAPS and 3.2% of sAPS (p=1.000) and cardiovascular death in 9.8% of PAPS and 12.9% of sAPS (p=0.724). New thrombotic events (arterial and/or venous) occurred in 15.7% of PAPS and 17.2% of sAPS (p=1.000). During the follow-up period, 66.7% of PAPS and 55.2% of SAPS (p=0.313) were treated with aspirin, 25.5% of PAPS and 25.0% of sAPS with warfarin, and chloroquine was administered in 46.8% of PAPS and 53.6% of sAPS (p=0.571). Age (p=0.008), gender (p=0.034), thrombotic APS (p=0.033), hypertension (p=0.003), diabetes mellitus (p=0.043), and cardiovascular manifestations present at the time of APS diagnosis (p=0.035), namely CAD (p=0.001) and HF (p=0.005) were significantly associated with 10y MACE. aPL type and category were not associated with 10y MACE. In a multivariate logistic model, age. hypertension, and HF were independent predictors for 10y MACE. Conclusions APS patients develop new cardiovascular events despite optimal medical therapy. Cardiovascular evaluation at the time of diagnosis and proper cardiologist follow-up with the rigorous treatment of standard atherosclerotic risk factors is of utmost importance.

Myocardial infarction with non-obstructive coronary arteries in a young seropositive woman with human immunodeficiency virus: a case report and review of the literature

BackgroundElevated susceptibility to acute myocardial infarction and various cardiovascular diseases has been observed in individuals infected with the human immunodeficiency virus compared with the uninfected population, as demonstrated in numerous studies. The precise mechanism by which human immunodeficiency virus infection heightens the risk of acute myocardial infarction remains elusive. The manifestation of acute coronary syndrome in young patients with human immunodeficiency virus may deviate from the typical, displaying distinct pathophysiological and clinical characteristics. The occurrence of myocardial infarction with non-obstructive coronary arteries in young patients with human immunodeficiency virus poses diagnostic and treatment challenges.Case presentationWe present the case of a 46-year-old African woman with no traditional atherosclerotic risk factors. She was diagnosed with human immunodeficiency virus-1 infection 2 years prior to her current admission for chest pain. Her troponin levels were elevated, suggestive of acute coronary syndrome. Although coronary angiography ruled out coronary artery stenosis, it revealed mild myocardial bridging in the left anterior descending artery. Cardiac magnetic resonance imaging confirmed myocardial infarction, indicating a myocardial infarction with non-obstructive coronary arteries with an apical thrombus in the left ventricle. Following medical treatment, the patient experienced resolution of chest pain and improvement in ST-segment elevation.ConclusionsIn young female patients without traditional risk factors, human immunodeficiency virus infection is a possible etiological factor for myocardial infarction with non-obstructive coronary arteries. The likely pathophysiological pathway is superficial endothelial cell denudation as a result of chronic inflammation and immune activation.

Associations between Various Inflammatory Markers and Carotid Findings in a Voluntary Asymptomatic Population Sample.

Cardiovascular disease (CVD) is the leading cause of morbidity and mortality worldwide, and atherosclerosis is the key factor promoting its development. Carotid intima-media thickening and the presence of carotid plaques are important indices of cardiovascular risk. In addition, inflammation is a major and complex factor in the development of atherosclerosis. The relationships between carotid atherosclerosis and certain inflammatory markers have rarely been studied in healthy individuals. Therefore, we aimed to investigate the associations between subclinical carotid atherosclerosis and various inflammatory biomarkers in a large Caucasian population free of evident CVD. In addition to recording study participants' demographic characteristics, anthropometric characteristics, and atherosclerotic risk factors, laboratory tests were performed to measure levels of hemoglobin A1c (HbA1c), high-sensitivity C-reactive protein, and inflammatory cytokines/chemokines, including interleukin (IL)-1β, IL-6, IL-8, IL-10, IL-12p70, IL-17A, IL-18, IL-23, IL-33, interferon (IFN)-α2, IFN-γ, tumor necrosis factor-α, and monocyte chemoattractant protein (MCP)-1. This study included 264 asymptomatic individuals with a median age of 61.7 years (interquartile range, 54.5-67.5 years); 45.7% of participants were male. Participants were divided into two groups according to their carotid status: the normal carotid group, comprising 120 participants; and the pathological carotid group, comprising 144 participants. Compared with the normal carotid group, hypertension and diabetes mellitus were significantly more common and serum levels of HbA1c, IL-8, and MCP-1 were significantly higher in the pathological carotid group. Multivariate regression analysis revealed significant positive associations between pathological carotid findings and serum levels of IL-8 (highest tertile, OR: 2.4, p = 0.030) and MCP-1 (highest tertile, OR: 2.4, p = 0.040). Our results suggest that IL-8 and MCP-1 may serve as early indicators of subclinical atherosclerosis, thereby helping to identify individuals at increased risk of CVD before the onset of clinical symptoms.

Impact of Nonalcoholic Hepatic Steatosis on the Warranty Period of a Coronary Artery Calcium Score of 0: Results From the Multi-Ethnic Study of Atherosclerosis.

For individuals with a coronary artery calcium (CAC) score of 0, CAC rescans at appropriate timings are recommended, depending on individual risk profiles. Although nonalcoholic fatty liver disease, recently redefined as metabolic-associated fatty liver disease, is a risk factor for atherosclerotic cardiovascular disease events, its relationship with the warranty period of a CAC score of 0 has not been elucidated. A total of 1944 subjects from the MESA (Multi-Ethnic Study of Atherosclerosis) with a baseline CAC score of 0, presence or absence of nonalcoholic hepatic steatosis, and at least 1 follow-up computed tomography scan were included. Nonalcoholic hepatic steatosis was defined using nonenhanced computed tomography and liver/spleen attenuation ratio <1. The association between nonalcoholic hepatic steatosis and new CAC incidence (CAC score >0) was evaluated using a Weibull survival model. Nonalcoholic hepatic steatosis was identified in 268 (14%) participants. Participants with nonalcoholic hepatic steatosis had higher CAC incidence than those without nonalcoholic hepatic steatosis. Nonalcoholic hepatic steatosis was independently associated with new CAC incidence after adjustment for atherosclerotic cardiovascular disease risk factors (hazard ratio, 1.28 [95% CI, 1.05-1.57]; P=0.015). Using a 25% testing yield (25% of participants with zero CAC at baseline would be expected to have developed a CAC score >0), the warranty period of a CAC score of 0 in participants with nonalcoholic hepatic steatosis was shorter than in those without nonalcoholic hepatic steatosis (4.7 and 6.3 years). This association was consistent regardless of sex, race/ethnicity, age, and 10-year atherosclerotic cardiovascular disease risk. Nonalcoholic hepatic steatosis had an impact on the warranty period of a CAC score of 0. The study suggests that the time period until a CAC rescan should be shorter in those with nonalcoholic hepatic steatosis and a CAC score of 0.

Polypill Strategy for the Secondary Prevention of Cardiovascular Outcomes and Atherosclerotic Risk Factor Modification: A Meta-Analysis of Randomized Controlled Trials.

Polypill Strategy for the Secondary Prevention of Cardiovascular Outcomes and Atherosclerotic Risk Factor Modification: A Meta-Analysis of Randomized Controlled Trials.

Burden of Atherosclerotic Disease Risk Factors in Patients With and Without Rheumatologic Disease: A Retrospective Cohort Study

Burden of Atherosclerotic Disease Risk Factors in Patients With and Without Rheumatologic Disease: A Retrospective Cohort Study

A User-Centered Data Visualization of Atherosclerotic Heart Disease Risk Factors.

High cholesterol levels significantly contribute to the risk of atherosclerotic cardiovascular disease (ACVD), with a notable portion of ischemic heart disease cases linked to elevated cholesterol levels. Effective graphical displays of lipid panel tests and other cardiac risk factors are crucial for quick and accurate data interpretation, enabling early intervention for individuals with hyperlipidemia. Applying design theories such as Gestalt and distributed cognitive theories is essential for creating user-centered graphical data displays in the context of cardiovascular (CV) risk factors. The proposed dashboard informed by these theories is expected to help healthcare providers better address cardiovascular disease (CVD), enhancing diagnosis, treatment, and prevention. Moreover, this approach may help alleviate clinical provider burnout, improve patient outcomes, and reduce provider stress, thus contributing to safer and more effective healthcare systems.

Factors influencing high cardiovascular risk in subpopulation of young adults

Abstract Introduction The cardiovascular risk factors determine the development of early atheriosclerotic lesions, and the susceptibility to their proartheriosclerotic action is programmed by external factors and also those present during fetal development. The occurrence of atherosclerotic risk factors depends on an age. In population of children and young adults it seems reasonable to assess the classical risk factors for atherosclerosis in the connection with such additional given as family history being an indirect surrogate of genetic factors, and a low birth weight. Aim of the study was to categorize the study group into two groups - those who exhibit a low-risk and those who exhibit a high-risk of cardiovascular disease, and to determine the factors characteristic for each risk group. Materials and Methods The study was done on 512 volunteers, students in the following Faculties: Health Care Faculty: Nursing Course (178 / 34,7%), Physiotherapy Course (109 / 21,3%), Obstetrics Course (49 / 9,5%), Faculty of Medicine (176 / 34,3%). The questionnaire on cardiovascular risk factors was constructed. According to the results of its assessment the following groups were divided: the group of high risk (10% of investigated with the highest awarding of points) and the group of low risk (10% of investigated with the lowest awarding of points). Results Significant quantitative and qualitative differences were found between the low-risk and high-risk groups. Groups of the high and low risk did not differ in respect of sexes investigated and in respect of the direction of studies. One ascertained essential differences in variable qualitative and quantitative between the group of the low and high risk. Family history of diabetes, arterial hypertension, cardiovascular diseases, lipid disturbances, stroke were indeed greater in the group of high risk. The low birth weight was significantly lower in the group of high risk (p=0,02). The current and chronic stress status grading according to the punctual scale (0-10) was significantly higher in the group of high risk as compared to the low risk group (p=0,01, p=0,03, respectively). The systolic pressure was significantly higher in the high risk group in comparison to the low risk subjects (p=0,01). Conclusions High cardiovascular risk in subgroup of young adults results from high smoking status, low physical activity, diet and family history of cardiovascular disorders. The numerous cardiovascular risk factors that occur in some students are associated with low birth weight and a positive family medical history. The above observations show the influence of genetic and fetal factors on the development of atherosclerosis. Young adults with high cardiovascular risk are characterized by higher subjective stress level. Quantitative differences in high risk Medical family history

Long-term mortality after isolated coronary artery bypass grafting and risk factors for mortality

BackgroundPatients requiring coronary artery bypass grafting (CABG) have multiple co-morbidities which need to be considered in totality when determining surgical risks. The objective of this study is to evaluate short-term and long-term mortality rates of CABG surgery, as well as to identify the most significant risk factors for mortality after isolated CABG.MethodsAll patients with complete dataset who underwent isolated CABG between January 2008 and December 2017 were included. Univariate and multivariate Cox regression was performed to determine the risk factors for all-cause mortality. Classification and regression tree analysis was performed to identify the relative importance of these risk factors.Results3,573 patients were included in the study. Overall mortality rate was 25.7%. In-hospital mortality rate was 1.62% overall. 30-day, 1-year, 5-year, 10-year and 14.5-year mortality rates were 1.46%, 2.94%, 9.89%, 22.79% and 36.30% respectively. Factors associated with death after adjustment for other risk factors were older age, lower body mass index (BMI), hypertension, diabetes mellitus, chronic obstructive pulmonary disease, pre-operative renal failure on dialysis, higher last pre-operative creatinine level, lower estimated glomerular filtration rate (eGFR), heart failure, lower left ventricular ejection fraction and New York Heart Association class II, III and IV. Additionally, female gender and logistic EuroSCORE were associated with death on univariate Cox analysis, but not associated with death after adjustment with multivariate Cox analysis. Using CART analysis, the strongest predictor of mortality was pre-operative eGFR < 46.9, followed by logistic EuroSCORE ≥ 2.4.ConclusionPoorer renal function, quantified by a lower eGFR, is the best predictor of post-CABG mortality. Amongst other risk factors, logistic EuroSCORE, age, diabetes and BMI had a relatively greater impact on mortality. Patients with chronic kidney disease stage 3B and above are at highest risk for mortality. We hope these findings heighten awareness to optimise current medical therapy in preserving renal function upon diagnosis of any atherosclerotic disease and risk factors contributing to coronary artery disease.

Association between augmented levels of the gut pro-hormone Proneurotensin and subclinical vascular damage

Elevated levels of the gut pro-hormone Proneurotensin (proNT) have been found to predict development of cardiovascular disease. However, it is still unknown whether higher proNT levels are associated with subclinical vascular damage. Herein, we investigated the relationship between higher proNT concentrations and augmented pulse pressure (PP) and carotid intima-media thickness (cIMT), indicators of increased arterial stiffness and subclinical atherosclerosis, respectively. Clinical characteristics, PP and cIMT were evaluated in 154 non-diabetic individuals stratified into tertiles according to fasting serum proNT concentrations. We found that, subjects with higher proNT levels exhibited a worse lipid profile and insulin sensitivity, increased C-reactive protein levels, along with higher values of PP and cIMT as compared to the lowest proNT tertile. Prevalence of elevated PP (≥ 60 mmHg) and subclinical carotid atherosclerosis (IMT > 0.9 mm) was increased in the highest tertile of proNT. In a logistic regression analysis adjusted for several confounders, subjects with higher proNT levels displayed a fivefold raised risk of having elevated PP values (OR 5.36; 95%CI 1.04–27.28; P = 0.05) and early carotid atherosclerosis (OR 4.81; 95%CI 1.39–16.57; P = 0.01) as compared to the lowest proNT tertile. In conclusion, higher circulating levels of proNT are a biomarker of subclinical vascular damage independent of other atherosclerotic risk factors.

Prevalence of Carotid Artery Stenosis in Patients with Acute Myocardial Infarction Admitted to a Coronary Care Unit and its Relationship with Coronary Angiographic Findings

Objectives: The prevalence and clinical significance of carotid artery stenosis (CAS) in acute myocardial infarction (AMI) patients remain uncertain. This study aims to evaluate CAS prevalence and its association with coronary artery disease (CAD) severity in AMI patients admitted to a coronary care unit (CCU). Methodology: In this cross-sectional study, 100 consecutively selected AMI patients underwent ultrasound Doppler carotid artery assessments, including measurements of carotid intima-media thickness (cIMT), identification of plaque (stenosis &gt;0%), and calculation of internal carotid artery/common carotid artery (ICA/CCA) peak systolic velocity ratio. Angiographic findings, including the number of diseased vessels and Syntax score (SS), were also recorded. Results: Among the study cohort (mean age 55.1±11.2 years, 78 males), 32 patients exhibited CAS, with 8 having cIMT&gt;1.2mm, 3 showing ICA/CCA PSV ratio&gt;2, and 25 presenting plaque. CAS prevalence did not significantly correlate with CAD severity, regardless of the number of diseased vessels or SS. Similarly, CAS rates did not significantly differ based on SS categories (low, intermediate, high). While CAS prevalence trended higher in patients with conventional atherosclerotic risk factors (diabetes, hypertension, smoking, obesity), these associations were not statistically significant. Conclusion: CAS was prevalent in approximately one-third of AMI patients, yet it did not demonstrate a significant association with CAD severity or SS. However, CAS rates tended to increase with the presence of conventional atherosclerotic risk factors. Further research is warranted to elucidate the clinical implications of CAS in AMI patients and its relationship with CAD severity.

Insights from Murine Studies on the Site Specificity of Atherosclerosis.

Atherosclerosis is an inflammatory reaction that develops at specific regions within the artery wall and at specific sites of the arterial tree over a varying time frame in response to a variety of risk factors. The mechanisms that account for the interaction of systemic factors and atherosclerosis-susceptible regions of the arterial tree to mediate this site-specific development of atherosclerosis are not clear. The dynamics of blood flow has a major influence on where in the arterial tree atherosclerosis develops, priming the site for interactions with atherosclerotic risk factors and inducing cellular and molecular participants in atherogenesis. But how this accounts for lesion development at various locations along the vascular tree across differing time frames still requires additional study. Currently, murine models are favored for the experimental study of atherogenesis and provide the most insight into the mechanisms that may contribute to the development of atherosclerosis. Based largely on these studies, in this review, we discuss the role of hemodynamic shear stress, SR-B1, and other factors that may contribute to the site-specific development of atherosclerosis.

Early-Onset or Premature Coronary Artery Disease.

The aim of this review was to examine the literature regarding younger individuals without classical risk factors for atherosclerosis who develop coronary artery disease (CAD) prematurely at an early age. An extensive literature review was undertaken in Pubmed, Scopus, and Google Scholar regarding early-onset or premature atherosclerosis, CAD, its diagnosis, management, and prophylaxis. There are individuals of both genders, particularly in the younger age group of 20-40 years of age, who lack the traditional/ classical risk factors and still develop CAD and other manifestations of atherosclerosis. Even the 10-year age gap in manifesting CAD that is noted between women and men ascribable to a cardioprotective effect of sex hormones may not be noted under these circumstances. This indicates that the risk profile differs in young patients with non-- classical atherosclerotic risk factors, and factors such as genetics, inflammation, thrombosis, psychosocial, environmental, and other parameters play an important role in atherosclerosis and other mechanisms that lead to CAD in younger individuals. These patients are at risk of major adverse cardiac events, which determine their prognosis. Unfortunately, current major guidelines do not acknowledge that many patients who manifest premature CAD are at high risk, and as a consequence, many of these patients may not be receiving guideline-directed hypolipidemic and other therapies before they present with symptoms of CAD. Caretakers need to be more vigilant in offering efficacious screening and strategies of prevention for early-onset or premature CAD to younger individuals.

Heterogeneous associations of traditional atherosclerotic risk factors and long-term complications in different arterial territories: the EPIC Norfolk prospective population cohort

Heterogeneous associations of traditional atherosclerotic risk factors and long-term complications in different arterial territories: the EPIC Norfolk prospective population cohort

Antidepressant-related microstructural changes in the external capsule.

Several magnetic resonance imaging (MRI) studies have reported that antidepressant medications are strongly linked to brain microstructural alterations. Notably, external capsule alterations have been reported to be a biological marker for therapeutic response. However, prior studies did not investigate whether a change in the neurite density or directional coherence of white matter (WM) fibers underlies the observed microstructural alterations. This MRI-based case-control study examined the relationship between patients' current use of antidepressant medications and advanced measurements of external capsule WM microstructure derived from multishell diffusion imaging using neurite orientation dispersion and density imaging (NODDI). The study compared a group of thirty-five participants who were taking antidepressant medications comprising selective serotonin reuptake inhibitors (SSRIs) (n = 25) and serotonin and norepinephrine reuptake inhibitors (SNRIs) with a control group of thirty-five individuals matched in terms of age, sex, race, and atherosclerotic cardiovascular risk factors. All participants were selected from the Dallas Heart Study phase 2, a multi-ethnic, population-based cohort study. A series of multiple linear regression analyses were conducted to predict microstructural characteristics of the bilateral external capsule using age, sex, and antidepressant medications as predictor variables. There was significantly reduced neurite density in the bilateral external capsules of patients taking SSRIs. Increased orientation dispersion in the external capsule was predominantly seen in patients taking SNRIs. Our findings suggest an association between specific external capsule microstructural changes and antidepressant medications, including reduced neurite density for SSRIs and increased orientation dispersion for SNRIs.

#1853 Comparative analysis of atherosclerotic risk factors in dialysis patients

Abstract Background and Aims Prevailing studies indicate a correlation between elevated serum phosphate levels and an augmented incidence of cardiovascular events. In patients undergoing dialysis, hyperphosphatemia contributes to vascular and valvular calcifications. This study analyzes the interrelation of phosphate levels, inflammatory markers, and additional risk determinants in the development of carotid artery atherosclerosis in individuals receiving peritoneal dialysis (PD) versus hemodialysis (HD). Method A cohort of 39 PD and 53 HD patients were recruited, all undergoing stable renal replacement therapy (RRT) for three to thirty-six months. B-mode ultrasonography assessed the carotid artery intima-media thickness (CIMT) and detected plaque and calcification occurrences. Patients were specified as having atherosclerosis when CIMT was greater than 1 cm, and the presence of plaque was identified. Logistic regression analysis was employed to discern the connection between potential risk factors and the incidence of atherosclerosis. Results The study encompassed 92 participants, 61% undergoing HD and an average age of 53.4 years (standard deviation ± 14.5 years). The tubulo-interstitial disease was the predominant initial pathology, followed by chronic glomerulonephritis and nephroangiosclerosis. Diabetic nephropathy was identified as the etiology of end-stage renal disease (ESRD) in 23.1% of PD and 11.4% of HD subjects (p = 0.047). Notably, PD patients showed better residual renal function (RRF) (p &amp;lt; 0.001), urine volume over 24 hours (p &amp;lt; 0.001), and C-reactive protein (CRP) (p = 0.047), alongside diminished phosphate (p = 0.01), parathyroid hormone (PTH) (p &amp;lt; 0.05), alkaline phosphatase (p &amp;lt; 0.05), and albumin levels (p &amp;lt; 0.001) relative to their HD counterparts. Atherosclerosis prevalence was 66.3%, inclusive of the entire diabetic cohort. The incidence of atherosclerosis did not significantly diverge between PD and HD groups [56.4% vs 73.6% in HD, respectively]. Atherosclerotic patients were older (p &amp;lt; 0.001) and exhibited heightened phosphate levels (p = 0.012), pulse pressure (p = 0.01), and calcium index (Ci) (p = 0.034). Multiple regression analysis elucidated age, phosphate, RRF, PTH, pulse pressure, diabetes, and HD modality as autonomous factors linked to atherosclerosis. Conclusion Beyond conventional risk factors like age and diabetes, metabolic disorders arising from renal insufficiency were identified as contributing to atherosclerotic development. Multivariate analysis identified phosphate, RRF, and pulse pressure (PP) as independent atherosclerotic risk factors. The HD modality carried an elevated atherosclerotic risk compared to PD. It was thought that preserving RRF in PD patients would improve phosphate regulation and maybe even improve endothelial function, explaining the differences found.