Publications by authors named "Maryam Kavousi"

Background And Objectives: Nonfocal transient neurologic attacks (TNA) have been suggested to increase the risk of stroke, yet the optimal clinical approach of these attacks remains uncertain. We determined whether people who have a nonfocal TNA are at an increased risk of subsequent cardiovascular disease (CVD), akin to the known increased risk of stroke following transient ischemic attack (TIA).

Methods: Within a population-based cohort study among Dutch participants aged 45 years or older, we selected participants who had first-ever TNA, defined as an attack of sudden neurologic symptoms resolving within 24 hours without clear evidence for an alternative diagnosis, during follow-up between 1990 and 2020.

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In the modern era, cardiologists managing patients and families with cardiomyopathies need to be familiar with every stage of the diagnostic pathway from clinical phenotyping to the prescription and interpretation of genetic tests. This clinical consensus statement from the ESC Council for Cardiovascular Genomics aims to promote the integration of genetic testing into routine cardiac care of patients with cardiomyopathies, as recommended in the 2023 ESC guidelines for cardiomyopathies. The document describes the types of genetic tests currently available and provides advice on their prescription and for counselling after the return of genetic findings, including the approach in patients and families with variants of unknown significance.

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Background: Increased blood pressure (BP) variability is linked to dementia risk, but the relationship between baroreflex sensitivity (BRS), a fundamental mechanism for maintaining stable BP, and dementia risk is undetermined.

Methods: We tested the hypothesis that impaired BRS is associated with increased dementia risk in 1819 older adults (63% women; age, 71.0±6.

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Context: Subclinical thyroid dysfunction (ScTD) comprising subclinical hypothyroidism (SHypo) and subclinical hyperthyroidism (SHyper) has been associated with increased risk for cardiovascular events.

Objective: To assess associations between ScTD and cardiovascular risk factors (cvRFs) according to age and sex.

Design And Setting: Pooled individual participant data analysis of large prospective cohort studies from the Thyroid Studies Collaboration.

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Objective: This study aimed to investigate serum metabolomic biomarkers associated with incident type 2 diabetes mellitus (T2DM) and evaluate their performance in improving T2DM risk prediction.

Methods: Untargeted proton nuclear magnetic resonance (1H NMR) spectroscopy-based metabolomics analyses were conducted in the Multi-Ethnic Study of Atherosclerosis (MESA; n=3460; discovery cohort) and Rotterdam Study (RS; n=1556; replication cohort). Multivariable cause-specific hazards models were used to analyze the associations between 23,571 serum metabolomic spectral variables and incident T2DM.

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Objectives: Evidence suggests that high levels of air pollution and less green space increase depressive symptoms in adults. However, results are mixed and cross-cohort comparisons are scarce, largely due to heterogeneity in exposure assessment. Also, the impact of these exposures on the trajectory of depressive symptoms over time has been less studied.

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Introduction: Long-term biological stress, reflected in hair cortisol and cortisone levels, predicts future weight gain and metabolic deterioration. This is likely at least partially mediated by glucocorticoid-induced increases in hedonic overeating. Yet, the relationship between long-term biological stress and long-term hedonic eating tendencies remains to be elucidated.

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Background: Analytical criteria for laboratory analysis based on biological variation are considered state-of-the-art. While biological variance should ideally be measured in patient populations for whom the tests are relevant, data are mostly only available from healthy individuals. We determined the biological variance of activated partial thromboplasmin time (APTT), prothrombin time (PT), fibrinogen, and trough dabigatran levels in patients with atrial fibrillation (AF) who were treated with dabigatran.

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We aimed to: (1) examine the relationship between glycemic control, BMD estimated from heel ultrasound (eBMD) and fracture risk in individuals with type 1 (T1D) and type 2 diabetes (T2D) and (2) perform a one-sample Mendelian randomization (MR) study to explore potential causal associations between glycemic control, eBMD, and fractures. This study comprised 452 131 individuals from the UK Biobank with glycated hemoglobin A1C (HbA) and eBMD levels. At baseline, 4078 participants were diagnosed with T1D and 23 682 with T2D.

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Obesity and cardiometabolic disease often, but not always, coincide. Distinguishing subpopulations within which cardiometabolic risk diverges from the risk expected for a given body mass index (BMI) may facilitate precision prevention of cardiometabolic diseases. Accordingly, we performed unsupervised clustering in four European population-based cohorts (N ≈ 173,000).

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Article Synopsis
  • A study was conducted to examine the link between plant-based diet indices and the risk of cardiovascular disease (CVD) among 8,852 participants from the Rotterdam Study.
  • Results indicated that men consuming more healthy plant-based foods had a 7-8% lower risk of CVD, while women showed a complex, U-shaped relationship between plant-based diets and stroke risk.
  • An updated meta-analysis reinforced these findings, showing that healthy plant-based diets lower CVD risk, while unhealthy plant-based diets increase it, suggesting that focusing on healthy options is important for heart health.
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Article Synopsis
  • Long-term stress may influence eating habits and contribute to obesity by affecting hormones that regulate appetite and metabolism.
  • A study with 65 obese patients examined the relationship between stress (both biological and psychological) and various appetite-regulating hormones.
  • The findings suggest that higher levels of hair cortisone are positively linked to increased cholecystokinin, indicating a connection between persistent biological stress and hormonal changes related to appetite.
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Background: Perceived age (PA) has been associated with mortality, genetic variants linked to ageing and several age-related morbidities. However, estimating PA in large datasets is laborious and costly to generate, limiting its practical applicability.

Objectives: To determine if estimating PA using deep learning-based algorithms results in the same associations with morbidities and genetic variants as human-estimated perceived age.

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Limited population-based data on the gender differences and association between arteriosclerotic calcification at different sites and atrial fibrillation (AF) exist. We aimed to investigate the (gender-specific) associations between arteriosclerotic calcification at different sites with the risk of AF in the general population. Arteriosclerotic calcification was quantified using computed tomography examinations between 2003 and 2006 in 2,259 participants free of AF from the population-based Rotterdam Study.

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Article Synopsis
  • The study investigates the relationship between serum calcium levels and ventricular repolarization time, specifically the QT and JT intervals, which are important for heart health.
  • Researchers conducted large-scale genome-wide analyses to explore potential interactions between calcium levels and genetic variants associated with QT and JT intervals, using over 122,000 participants.
  • The results showed limited evidence for the hypothesized calcium interaction effects, suggesting that other factors, such as rare genetic variations or environmental influences, likely play a larger role in the unexplained heritability of QT and JT intervals.
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Aortic stiffness, a consequence of vascular aging, is an independent predictor of cardiovascular morbidity and mortality. However, the impact of age and sex on its predictive performance remains unclear. We have included 6046 individuals from the population-based Rotterdam study.

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Article Synopsis
  • This systematic review and meta-analysis aimed to evaluate the cardiovascular risk factors in individuals with unrecognised myocardial infarction (MI), which is a heart attack that goes undetected in the acute phase, leading to worse health outcomes.
  • The analysis included 14 cohort studies with over 200,000 participants, finding that those with unrecognised MI had higher body mass index, systolic blood pressure, and prevalence of conditions like hypertension and diabetes compared to individuals without MI.
  • The study concluded that people with unrecognised MI face significant metabolic risk factors, highlighting the need for better recognition and management of these risks in this population.
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This report from the European Society of Cardiology (ESC) Atlas Project updates and expands upon the 2021 report in presenting cardiovascular disease (CVD) statistics for the ESC member countries. This paper examines inequalities in cardiovascular healthcare and outcomes in ESC member countries utilizing mortality and risk factor data from the World Health Organization and the Global Burden of Disease study with additional economic data from the World Bank. Cardiovascular healthcare data were collected by questionnaire circulated to the national cardiac societies of ESC member countries.

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Background: We investigated the potential impact of antihypertensive drugs for atrial fibrillation (AF) prevention through a drug target Mendelian randomization study to avoid the potential limitations of clinical studies.

Methods: Validated published single-nucleotide polymorphisms (SNPs) that mimic the action of 12 antihypertensive drug classes, including alpha-adrenoceptor blockers, adrenergic neuron blockers, angiotensin-converting enzyme inhibitors, angiotensin-II receptor blockers, beta-adrenoceptor blockers, centrally acting antihypertensive drugs, calcium channel blockers, loop diuretics, potassium-sparing diuretics and mineralocorticoid receptor antagonists, renin inhibitors, thiazides and related diuretic agents, and vasodilators were used. We estimated, via their corresponding gene and protein targets, the downstream effect of these drug classes to prevent AF via systolic blood pressure using 2-sample Mendelian randomization analyses.

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Aims: To evaluate temporal trends, across three decades, in the population attributable fractions (PAFs) of modifiable risk factors for 5-year risk of cardiovascular diseases (CVDs).

Methods And Results: Within population-based Rotterdam Study, we defined three time groups of individuals without established CVD at 'baseline' with a mean age of 70 years, and followed for five years: Epoch 1990s (1989-93, n = 6195), Epoch 2000s (1997-2001, n = 5572), and Epoch 2010s (2009-14, n = 5135). The prevalence of risk factors and related relative risks were combined to quantify PAFs.

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Trimethylamine -oxide (TMAO) is a circulating microbiome-derived metabolite implicated in the development of atherosclerosis and cardiovascular disease (CVD). We investigated whether plasma levels of TMAO, its precursors (betaine, carnitine, deoxycarnitine, choline), and TMAO-to-precursor ratios are associated with clinical outcomes, including CVD and mortality. This was followed by an in-depth analysis of their genetic, gut microbial, and dietary determinants.

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