Publications by authors named "Kees Hovingh"

Coronary artery disease (CAD) affects over 200 million individuals globally, accounting for approximately 9 million deaths annually. Patients living with diabetes mellitus exhibit an up to fourfold increased risk of developing CAD compared to individuals without diabetes. Furthermore, CAD is responsible for 40 to 80 percent of the observed mortality rates among patients with type 2 diabetes.

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Aims: Coronary computed tomography angiography (CCTA) offers detailed imaging of plaque burden and composition, with plaque progression being a key determinant of future cardiovascular events. As repeated CCTA scans are burdensome and costly, there is a need for non-invasive identification of plaque progression. This study evaluated whether combining proteomics with traditional risk factors can detect patients at risk for accelerated plaque progression.

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Aim: Children with heterozygous familial hypercholesterolaemia (HeFH) show greater carotid intima-media thickness (cIMT). Evolocumab, a proprotein convertase subtilisin/kexin type 9 inhibitor monoclonal antibody, substantially reduced low-density lipoprotein cholesterol (LDL-C) and modestly reduced lipoprotein(a) in children with HeFH. We investigated evolocumab's effect on cIMT progression.

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  • The trans intestinal cholesterol excretion (TICE) pathway is a strategy to lower LDL cholesterol by promoting the direct excretion of cholesterol from enterocytes into feces, which was previously stimulated in mice using hydrophilic bile acids.* -
  • A clinical trial tested whether the bile acid ursodeoxycholic acid (UDCA) could increase fecal cholesterol excretion in humans, involving 20 male participants who received either UDCA or a placebo after a run-in with ezetimibe.* -
  • Results showed that while UDCA did increase the hydrophilicity of bile acids, it did not elevate fecal neutral sterols nor decrease LDL cholesterol levels, indicating TICE may not be influenced by bile acid hydroph
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  • Inflammation contributes to the development of atherosclerotic cardiovascular disease, and the study aims to explore how inflammatory markers relate to changes in coronary plaque volume measured by coronary CT angiography (CCTA).
  • The research involved 161 patients aged 40 and above with stable coronary artery disease, measuring inflammatory markers like IL-6 at the start, and assessing plaque volumes after a year.
  • Results showed that higher IL-6 levels were linked to significant increases in total and noncalcified plaque volume, suggesting that targeting IL-6 could help manage plaque progression and cardiovascular risks.
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  • Semaglutide, a GLP-1 receptor agonist used for weight loss, may lower the risk of serious cardiovascular issues in individuals with obesity, but its specific effects on those with pre-existing heart conditions, like atherosclerotic cardiovascular disease and heart failure, were unclear.
  • The SELECT trial, a comprehensive study involving adult participants with cardiovascular disease and high BMI, examined the impact of weekly injections of semaglutide versus placebo on heart-related outcomes, particularly focusing on those with varying types of heart failure.
  • Researchers looked for differences in cardiovascular events, analyzing data to see if treatment efficacy and safety were affected by heart failure type and participants’ initial health characteristics.
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Background And Aims: Systemic low-grade inflammation, measured by plasma high-sensitivity C-reactive protein (hsCRP) levels, is an important risk factor for atherosclerotic cardiovascular disease (ASCVD). To date, however, it is unknown whether plasma hsCRP is associated with adverse histological plaque features.

Methods: Plaques were derived during carotid endarterectomy.

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  • Familial hypercholesterolemia (FH) is a genetic disorder characterized by high LDL cholesterol levels and a greater risk of early heart disease, and traditional methods of classifying LDL receptor gene (LDLR) variants might overlook individual differences in cholesterol levels and CAD risk.
  • The study screened participants for LDLR variants and calculated age- and sex-adjusted LDL cholesterol percentiles for variant carriers, then grouped them into strata to evaluate coronary artery disease (CAD) risk.
  • Results showed that LDLR variant carriers had a significantly higher CAD risk than non-carriers, with the risk varying depending on cholesterol levels and the type of LDLR variant, indicating that the new classification method could improve risk assessment for FH patients.
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  • Heterozygous familial hypercholesterolemia (HeFH) is a genetic condition that leads to high cholesterol and increased heart disease risk, though individuals show varying levels of risk for developing coronary artery disease (CAD).
  • This study analyzed 1,315 HeFH carriers and their matched noncarrier relatives in the Netherlands, along with data from 151,009 participants in the UK Biobank, to investigate how common DNA variants affect CAD risk through a polygenic score.
  • Results demonstrated that HeFH individuals had higher CAD rates than noncarriers, and that a higher polygenic score significantly increased CAD risk, sometimes to levels seen in noncarriers, highlighting the role of genetic factors
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Background: Homozygous familial hypercholesterolaemia (HoFH) is a rare genetic disease characterised by extremely high plasma LDL cholesterol from birth, causing atherosclerotic cardiovascular disease at a young age. Lipoprotein apheresis in combination with lipid-lowering drugs effectively reduce LDL cholesterol, but long-term health outcomes of such treatment are unknown. We aimed to investigate the long-term cardiovascular outcomes associated with lipoprotein apheresis initiated in childhood or adolescence.

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In the SELECT cardiovascular outcomes trial, semaglutide showed a 20% reduction in major adverse cardiovascular events in 17,604 adults with preexisting cardiovascular disease, overweight or obesity, without diabetes. Here in this prespecified analysis, we examined effects of semaglutide on weight and anthropometric outcomes, safety and tolerability by baseline body mass index (BMI). In patients treated with semaglutide, weight loss continued over 65 weeks and was sustained for up to 4 years.

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Background And Aims: Familial hypercholesterolemia (FH) is a highly prevalent genetic disorder resulting in markedly elevated LDL cholesterol levels and premature coronary artery disease. FH underdiagnosis and undertreatment require novel detection methods. This study evaluated the effectiveness of using an LDL cholesterol cut-off ≥99.

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  • The STEP-HFpEF and STEP-HFpEF DM trials investigated the effects of the GLP-1 receptor agonist semaglutide on individuals with obesity-related heart failure, showing improvements in symptoms, physical limitations, body weight, and exercise function.
  • A pooled analysis was conducted to assess the effects of semaglutide across various outcomes and determine consistency among different patient subgroups, utilizing data from randomized, double-blind, placebo-controlled trials.
  • Participants were assigned to receive either semaglutide or a placebo for 52 weeks, with primary endpoints focusing on changes in heart failure-related symptoms and body weight, and secondary endpoints assessing physical activity and inflammation markers.
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  • Obesity and type 2 diabetes are common in patients with heart failure with preserved ejection fraction, leading to significant symptoms, and there's a lack of approved treatments targeting this condition.
  • A study assigned 616 patients with heart failure, obesity, and type 2 diabetes to receive either once-weekly semaglutide or a placebo for one year, measuring improvements in symptoms and weight.
  • Results showed that those on semaglutide had significantly better improvements in symptom scores (KCCQ-CSS) and lost more body weight compared to the placebo group, along with other beneficial outcomes in physical activity and inflammation markers.
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  • - The study investigates the knowledge and practice of familial hypercholesterolaemia (FH) care among Dutch general practitioners (GPs) to address underdiagnosis and undertreatment of the condition, which can lead to early cardiovascular disease.
  • - An online questionnaire revealed that while a majority of GPs rated their familiarity with FH positively, many lacked accurate understanding of key FH concepts, with 58.4% scoring low on knowledge questions.
  • - Findings show that despite better familiarity and guideline awareness in the Netherlands compared to other regions, significant knowledge gaps remain, highlighting the need for improved education and global collaboration in FH understanding.
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Importance: Homozygous familial hypercholesterolemia (HoFH) is a rare genetic condition characterized by extremely increased low-density lipoprotein (LDL) cholesterol levels and premature atherosclerotic cardiovascular disease (ASCVD). Heterozygous familial hypercholesterolemia (HeFH) is more common than HoFH, and women with HeFH are diagnosed later and undertreated compared to men; it is unknown whether these sex differences also apply to HoFH.

Objective: To investigate sex differences in age at diagnosis, risk factors, lipid-lowering treatment, and ASCVD morbidity and mortality in patients with HoFH.

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Background: Currently available injectable drugs that target proprotein convertase subtilisin/kexin type 9 (PCSK9) reduce serum LDL cholesterol and improve cardiovascular outcomes. This phase 2 study assessed NNC0385-0434, an oral PCSK9 inhibitor, in individuals receiving oral lipid-lowering therapy.

Methods: In this randomised, double-blind, placebo-controlled and active-controlled trial, 42 research sites across seven countries (Belgium, Germany, Greece, Japan, the Netherlands, Poland, and the USA) recruited individuals with established atherosclerotic cardiovascular disease (aged ≥40 years) or at high risk of atherosclerotic cardiovascular disease (aged >50 years), who had LDL cholesterol concentration of at least 1·8 mmol/L and were receiving maximum tolerated statins and stable lipid-lowering therapy.

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Increased plasma levels of low-density lipoprotein cholesterol (LDL-C) are causally associated with atherosclerotic cardiovascular disease (ASCVD), and statins that lower LDL-C have been the cornerstone of ASCVD prevention for decades. However, guideline-recommended LDL-C targets are not achieved in about 60% of statin users. Proprotein convertase subtilisin/kexin type 9 (PCSK9)-targeted therapy effectively lowers LDL-C levels and has been shown to reduce ASCVD risk.

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Article Synopsis
  • This study investigates familial hypercholesterolaemia (FH) patients, focusing on their lifetime exposure to low density lipoprotein cholesterol (LDL-C) and its impact on subclinical atherosclerosis and coronary health.
  • Researchers compared genetically diagnosed FH patients to a control group using coronary CT angiography and found that FH patients had significantly higher LDL-C exposure and more coronary plaque.
  • The findings suggest that early and aggressive lipid-lowering therapy is essential in reducing coronary plaque burden in FH patients, highlighting the value of periodic monitoring to tailor treatment strategies.
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Objectives: Individuals with familial hypercholesterolemia (FH) are at an increased risk for coronary artery disease (CAD). While prior research has shown variability in coronary artery calcification (CAC) among those with FH, studies with small sample sizes and single-center recruitment have been limited in their ability to characterize CAC and plaque burden in subgroups based on age and sex. Understanding the spectrum of atherosclerosis may result in personalized risk assessment and tailored allocation of costly add-on, non-statin lipid-lowering therapies.

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Background: Semaglutide, a glucagon-like peptide-1 receptor agonist, has been shown to reduce the risk of adverse cardiovascular events in patients with diabetes. Whether semaglutide can reduce cardiovascular risk associated with overweight and obesity in the absence of diabetes is unknown.

Methods: In a multicenter, double-blind, randomized, placebo-controlled, event-driven superiority trial, we enrolled patients 45 years of age or older who had preexisting cardiovascular disease and a body-mass index (the weight in kilograms divided by the square of the height in meters) of 27 or greater but no history of diabetes.

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