DEFINING TOMORROW'S VASCULAR STRATEGIES
×
Register now to R3i !
Your login
Your password
Confirm your password
Your email
I agree to receive the R3i newsletter
Jan 2021
Omega-3 fatty acids for residual cardiovascular risk: more questions than answers
Oct 2020
Targeting triglycerides: Novel agents expand the field
Jul 2020
Why multidrug approaches are needed in NASH: insights with pemafibrate
Mar 2020
Lowering triglycerides or low-density lipoprotein cholesterol: which provides greater clinical benefit?
Feb 2020
The omega-3 fatty acid conundrum
Dec 2019
Focus on stroke: more input to address residual cardiovascular risk
Jul 2019
International Expert Consensus on Selective Peroxisome Proliferator-Activated Receptor Alpha Modulator (SPPARMα): New opportunities for targeting modifiable residual cardiovascular risk
Nov 2018
Residual cardiovascular risk: triglyceride metabolism and genetics provide a key
Jul 2018
The clinical gap for managing residual cardiovascular risk: will new approaches make the difference?
Apr 2018
Residual cardiovascular risk: refocus on a multifactorial approach
Feb 2018
Optimizing treatment benefit: the tenet of personalized medicine
Jan 2018
Addressing residual cardiovascular risk – back to basics?
Dec 2017
Residual risk of heart failure: how to address this global epidemic?
Oct 2017
Remnants and residual cardiovascular risk: triglycerides or cholesterol?
Jul 2017
Targeting residual cardiovascular risk: lipids and beyond…
Jun 2017
Why we need to re-focus on Latin America.
Apr 2017
Residual cardiovascular risk in the Middle East: a perfect storm in the making
Feb 2017
A global call to action on residual cardiovascular risk
Dec 2016
SPPARM?: more than one way to tackle residual risk
Oct 2016
Remnants linked with diabetic myocardial dysfunction
Sep 2016
New study links elevated triglycerides with plaque progression
Aug 2016
Atherogenic dyslipidaemia: a risk factor for silent coronary artery disease
Jul 2016
SPPARM?: a concept becomes clinical reality
Jun 2016
Remnant cholesterol back in the news
May 2016
Back to the future: triglycerides revisited
Apr 2016
Unravelling the heritability of triglycerides and coronary risk
Mar 2016
Will residual cardiovascular risk meet its nemesis in 2016?
Feb 2016
Tackling residual cardiovascular risk: a case for targeting postprandial triglycerides?
Jan 2016
Looking back at 2015: lipid highlights
Dec 2015
Legacy effects in cardiovascular prevention
Nov 2015
Residual cardiovascular risk: it’s not just lipids!
Oct 2015
Addressing residual vascular risk: beyond pharmacotherapy
Sep 2015
Back to basics: triglyceride-rich lipoproteins, remnants and residual vascular risk
Jul 2015
Beyond the PCSK9 decade: what's next?
Jun 2015
Targeting triglycerides: what lies on the horizon for novel therapies?
May 2015
Do we need new lipid biomarkers for residual cardiovascular risk?
Apr 2015
The Residual Risk Debate Hots Up: Lowering LDL-C or lowering remnant cholesterol?
Mar 2015
Call for action on stroke
Feb 2015
Triglycerides: the tide has turned
Jan 2015
Post IMPROVE-IT: Where to now for residual risk?
Dec 2014
R3i publishes new Call to Action paper: Residual Microvascular Risk in Type 2 Diabetes in 2014: Is it Time for a Re-Think?
Sep 2014
Targeting residual vascular risk: round-up from ESC Congress 2014 and beyond
Jul 2014
Lipid-related residual cardiovascular risk: a new therapeutic target on the horizon
Mar 2014
Non-HDL-C and residual cardiovascular risk: the Lp(a) perspective
Feb 2014
REALIST Micro, atherogenic dyslipidaemia and residual microvascular risk
Jan 2014
Looking back at 2013: what have we learned about residual vascular risk?
Dec 2013
Long-overdue US guidelines for lipid management oversimplify the evidence
Nov 2013
Triglycerides and residual cardiovascular risk: where now?
Oct 2013
How to target residual cardiovascular risk?
Sep 2013
The Residual Vascular Risk Conundrum: Why we should target atherogenic dyslipidaemia
Jul 2013
Targeting atherogenic dyslipidemia: we need to do better
Apr 2013
Is PCSK9- targeted therapy the new hope for residual risk?
Mar 2013
Scope for multifocal approaches for reducing residual cardiovascular risk?
Feb 2013
Renewing the R3i call to action: Now more than ever we need to target and treat residual cardiovascular risk
Jan 2013
Time for a re-think on guidelines to reduce residual microvascular risk in diabetes?
Jan 2013
Addressing the residual burden of CVD in renal impairment: do PPARa agonists provide an answer?
Jan 2013
Re-evaluating options for residual risk post-HPS2-THRIVE : are SPPARMs the answer?
Dec 2012
Dysfunctional HDL: an additional target for reducing residual risk
Nov 2012
Egg consumption: a hidden residual risk factor
Oct 2012
Call to action: re-emphasising the importance of targeting residual vascular risk
Jun 2012
Time to prioritise atherogenic dyslipidaemia to reduce residual microvascular risk?
Jan 2012
Residual vascular risk in chronic kidney disease: an overlooked high-risk group
Dec 2011
Introducing the HDL Resource Center: HDL science now available for clinicians
Oct 2011
Targeting reverse cholesterol transport: the future of residual vascular risk reduction?
Sep 2011
After SPARCL: Targeting cardio-cerebrovascular metabolic risk and thrombosis to reduce residual risk of stroke
Jul 2011
Challenging the conventional wisdom: Lessons from the FIELD study on diabetic nephropathy
Jul 2010
ACCORD Eye Study: a milestone in residual microvascular risk reduction for patients with type 2 diabetes
May 2010
Lipids and residual risk of coronary heart disease in statin-treated patients
Mar 2010
ACCORD Lipid Study brings new hope to people with type 2 diabetes and atherogenic dyslipidemia
Mar 2010
Reducing residual risk of diabetic nephropathy: the role of lipoproteins
Dec 2009
ARBITER 6-HALTS: Implications for residual cardiovascular risk
Nov 2009
Microvascular event risk reduction in type 2 diabetes: New evidence from the FIELD study
Aug 2009
Fasting versus nonfasting triglycerides: Importance of triglyceride-regulating genetic polymorphisms to residual cardiovascular risk
Jul 2009
Residual risk of microvascular complications of diabetes: is intensive multitherapy the solution?
Apr 2009
Reducing residual vascular risk: modifiable and non modifiable residual vascular risk factors
Jan 2009
Micro- and macrovascular residual risk: one of the most challenging health problems of the moment
Nov 2008
Treated dyslipidemic patients remain at high residual risk of vascular events

R3i Editorial

2 June 2020
Triglyceride-rich remnant lipoproteins: a new therapeutic target in aortic valve stenosis?
Prof. Jean Charles Fruchart, Prof. Michel Hermans, Prof. Pierre Amarenco
An Editorial from the R3i Trustees
 
Prof. Jean Charles Fruchart, Prof. Michel Hermans, Prof. Pierre Amarenco

Given that aortic valve stenosis is a chronic and multifactorial process, initiated many years before the onset of clinical symptoms, implies an atherosclerotic-like evolution with the involvement of atherogenic lipoproteins. Indeed, there is evidence from observational and genetic studies that low-density lipoprotein (LDL) cholesterol from standard LDLs, is one contributing factor 5. However, studies evaluating the effect of interventions that lower LDL cholesterol have proved largely inconclusive. For example, in the Simvastatin and Ezetimibe in Aortic Stenosis (SEAS) study, the combination of simvastatin and ezetimibe did not reduce the primary study endpoint, a composite of aortic valve events and ischemic events, and had no significant effect on events related to aortic valve stenosis 6.

By contrast, other atherogenic lipoproteins show promise as potential targets for intervention. Lipoprotein(a), a LDL modified by attachment of an apolipoprotein(a), is one candidate, supported by Mendelian randomization studies which showed that among the general population, elevated lipoprotein(a) levels were associated with an increased risk of aortic valve stenosis 7. Although the underlying mechanisms remain unclear, oxidized phospholipids which are carried by lipoprotein(a), may act as a pivotal player in driving valve calcification and disease progression 8.

Added to this, there is also new evidence suggesting a role for triglyceride (TG)-rich lipoproteins and their remnants, the focus of this month’s Landmark study 9. Using Mendelian randomization and data from the Copenhagen General Population Study, Kaltoft and co-workers investigated whether higher levels of plasma TG and remnant cholesterol are associated with an increased risk for aortic valve stenosis. The advantages of this approach are that both observational and genetic risk were evaluated, using instrumental variable analysis to avoid confounding and measurement error in the assessment of causality. Sixteen of the most appropriate genetic variants for proteins that play key roles in TG metabolism were used in the development of a genetic score.

The findings of this study are indeed novel. Higher levels of plasma TG and remnant cholesterol were observationally and genetically associated with a higher risk of aortic valve stenosis, providing a rationale that elevated TG-rich remnant lipoproteins may act as a potential driver of aortic valve stenosis. Although the study does not provide information into the underlying mechanisms, the authors suggest that these most likely involve pro-inflammatory effects, based on prior preclinical findings (10).

In conclusion, this important study provides a rationale for future randomized clinical trials to investigate whether therapeutic intervention against elevated TG, a surrogate for TG-rich remnant lipoproteins, can prevent and/or reduce progression of aortic valve stenosis. This study offers a basis for such trials to address this unmet clinical need for novel preventive approaches in aortic valve stenosis.

References

1. Joseph J, Naqvi SY, Giri J, Goldberg S. Aortic stenosis: pathophysiology, diagnosis, and therapy. Am J Med 2017;130:253-63.
2. Osnabrugge RL, Mylotte D, Head SJ, et al. Aortic stenosis in the elderly: disease prevalence and number of candidates for transcatheter aortic valve replacement: a meta-analysis and modeling study. J Am Coll Cardiol 2013;62:1002-12.
3. Baumgartner H, Falk V, Bax JJ, et al. ESC/EACTS Guidelines for the management of valvular heart disease. Eur Heart J 2017;38:2739–91.
4. Sharma UC, Barenbrug P, Pokharel S, et al. Systematic review of the outcome of aortic valve replacement in patients with aortic stenosis. Ann Thorac Surg 2004;78:90–9.
5. Stritzke J, Linsel-Nitschke P, Markus MRP, et al. Association between degenerative aortic valve disease and long-term exposure to cardiovascular risk factors: results of the longitudinal
population-based KORA/MONICA survey. Eur Heart J 2009;30:2044–53.
6. Rossebø AB, Pedersen TR, Boman K, et al. Intensive lipid lowering with simvastatin and ezetimibe in aortic stenosis. N Engl J Med 2008;359:1343–56.
7. Zheng KH, Tsimikas S, Pawade T, et al. Lipoprotein(a) and oxidized phospholipids promote valve calcification in patients with aortic stenosis. J Am Coll Cardiol 2019;73:2150-62.
8. Kamstrup PR, Tybjærg-Hansen A, Nordestgaard BG. Elevated lipoprotein(a) and risk of aortic valve stenosis in the general population. J Am Coll Cardiol 2014;63:470-7.
9. Kaltoft M, Langsted A, Nordestgaard BG. Triglycerides and remnant cholesterol associated with risk of aortic valve stenosis: Mendelian randomization in the Copenhagen General Population Study. Eur Heart J 2020. doi: 10.1093/eurheartj/ehaa172.
10. Varbo A, Benn M, Tybjærg-Hansen A, Nordestgaard BG. Elevated remnant cholesterol causes both low-grade inflammation and ischemic heart disease, whereas elevated low-density lipoprotein cholesterol causes ischemic heart disease without inflammation. Circulation 2013;128:1298–309.