Cited by 428Lipoproteins and Cardiovascular HealthCholesterol and Lipid MetabolismGenetic Associations and Epidemiology

Inactivating Mutations in NPC1L1 and Protection from Coronary Heart Disease

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The Myocardial Infarction Genetics Consortium Investigators·2014·New England Journal of Medicine

Abstract

BACKGROUND: Ezetimibe lowers plasma levels of low-density lipoprotein (LDL) cholesterol by inhibiting the activity of the Niemann-Pick C1-like 1 (NPC1L1) protein. However, whether such inhibition reduces the risk of coronary heart disease is not known. Human mutations that inactivate a gene encoding a drug target can mimic the action of an inhibitory drug and thus can be used to infer potential effects of that drug. METHODS: We sequenced the exons of NPC1L1 in 7364 patients with coronary heart disease and in 14,728 controls without such disease who were of European, African, or South Asian ancestry. We identified carriers of inactivating mutations (nonsense, splice-site, or frameshift mutations). In addition, we genotyped a specific inactivating mutation (p.Arg406X) in 22,590 patients with coronary heart disease and in 68,412 controls. We tested the association between the presence of an inactivating mutation and both plasma lipid levels and the risk of coronary heart disease. RESULTS: With sequencing, we identified 15 distinct NPC1L1 inactivating mutations; approximately 1 in every 650 persons was a heterozygous carrier for 1 of these mutations. Heterozygous carriers of NPC1L1 inactivating mutations had a mean LDL cholesterol level that was 12 mg per deciliter (0.31 mmol per liter) lower than that in noncarriers (P=0.04). Carrier status was associated with a relative reduction of 53% in the risk of coronary heart disease (odds ratio for carriers, 0.47; 95% confidence interval, 0.25 to 0.87; P=0.008). In total, only 11 of 29,954 patients with coronary heart disease had an inactivating mutation (carrier frequency, 0.04%) in contrast to 71 of 83,140 controls (carrier frequency, 0.09%). CONCLUSIONS: Naturally occurring mutations that disrupt NPC1L1 function were found to be associated with reduced plasma LDL cholesterol levels and a reduced risk of coronary heart disease. (Funded by the National Institutes of Health and others.).

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Crossref · 10.1056/nejmoa1405386

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  • A genetic sequencing study involving more than 90,000 patients found significantly lower LDL-C levels and a lower risk of coronary heart diseases among patients with NPC1L1 mutations.

    “A genetic sequencing study involving more than 90,000 patients found significantly lower LDL-C levels and a lower risk of coronary heart diseases among patients with NPC1L1 mutations [58]”

    From Established and Emerging Lipid-Lowering Drugs for Primary and Secondary Cardiovascular Prevention (2023) · cites this paper as [58]

    The Abstract Results report significantly lower LDL cholesterol and lower coronary heart disease risk among carriers of inactivating NPC1L1 mutations. The Abstract Methods and Results specify that 22,092 people were sequenced and another 91,002 were genotyped; the full study included 113,094 participants, but only 29,954 had coronary heart disease. Thus, the finding is supported, but the description of more than 90,000 patients in a sequencing study is imprecise. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Polymorphisms affecting NPC1L1 are associated with both lower levels of LDL cholesterol and a lower risk of cardiovascular events.

    “Polymorphisms affecting NPC1L1 are associated with both lower levels of LDL cholesterol and a lower risk of cardiovascular events.19”

    From Ezetimibe Added to Statin Therapy after Acute Coronary Syndromes (2015) · cites this paper as [19]

    The Abstract Results and Discussion report that carriers of rare, inactivating NPC1L1 mutations had lower LDL cholesterol and a lower risk of coronary heart disease. The claim is broader: the paper does not establish these associations for NPC1L1 polymorphisms generally or for cardiovascular events beyond coronary heart disease. (LLM, conf=0.83)

    Experimental — accuracy not yet measured
  • There is no clear evidence that statins have a clinically significant beneficial or adverse effect on renal function.

    “There is no clear evidence that statins have a clinically significant beneficial or adverse effect on renal function [253].”
  • A systematic review of 22 studies including 3465 patients with functioning kidney transplants and no CHD concluded that statins may reduce cardiovascular events.

    “A systematic review of the benefits and harms of statins in patients with a functioning kidney transplant included 3465 patients, free of CHD, from 22 studies. Although the authors concluded that statins may reduce CV events, they also suggested a need for additional studies [253].”
  • That systematic review also suggested that additional studies are needed.

    “A systematic review of the benefits and harms of statins in patients with a functioning kidney transplant included 3465 patients, free of CHD, from 22 studies. Although the authors concluded that statins may reduce CV events, they also suggested a need for additional studies [253].”

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1 of the 41 references couldn’t be matched to a known paper.

Research works printed but not linked: 1

  1. [11]Do R Stitziel NO Won H-H Multiple rare alleles at LDLR and APOA5 confer risk for early-onset myocardial infarction Nature (in press) PMC4319990 25487149

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Authors
The Myocardial Infarction Genetics Consortium Investigators
Affiliations
Washington University in St. Louis (US)
Corresponding author
The Myocardial Infarction Genetics Consortium Investigators
Venue
New England Journal of Medicine
Published
2014-11-27
Volume
371
Issue
22
Pages
2072-2082
ISSN
  • 0028-4793 (ISSN-L)
  • 1533-4406
OpenAlex
W2478496979
Cited by
419
References
41
Citations by year
2026: 8 · 2025: 12 · 2024: 13 · 2023: 21 · 2022: 19 · 2021: 26 · 2020: 36 · 2019: 44 · 2018: 31 · 2017: 47 · 2016: 84 · 2015: 73 · 2014: 5
FWCI
69.04
Type
journal article
Language
en
Open access
Locations
  • New England Journal of Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • Discovery Research Portal (University of Dundee) (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
  • Adelaide Research & Scholarship (AR&S) (University of Adelaide) (submittedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
  • mediaTUM (Technical University of Munich) (submittedVersion)
  • Pure Amsterdam UMC (submittedVersion)
  • PuSH - Publication Server of Helmholtz Zentrum München (submittedVersion)
Funders
  • National Institute for Health and Care Research (NF-SI-0512-10165)
  • British Heart Foundation (RG/08/014/24067)
  • National Institutes of Health (UL1TR000124)
  • Canadian Institutes of Health Research
  • Medical Research Council (MR/L003120/1)
  • National Institute on Aging (U01AG049505)
  • National Heart, Lung, and Blood Institute (RC2HL102925, K08HL114642, RC2HL102926, R01HL107816, T32HL007208)
  • National Human Genome Research Institute (U54HG003067, U01HG006378)
  • National Cancer Institute (R01CA082659)
  • National Institute of Nursing Research (R01NR013396)
  • National Institute of Diabetes and Digestive and Kidney Diseases (P30DK063491)
  • National Center for Advancing Translational Sciences
Topics
  • Health Sciences › Medicine › Surgery › Lipoproteins and Cardiovascular Health
  • Health Sciences › Medicine › Surgery › Cholesterol and Lipid Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
Keywords
NPC1L1, loss-of-function mutations, coronary artery disease, ezetimibe, LDL cholesterol, plasma lipids, genetic variants, therapeutic target, LDL cholesterol lowering
MeSH terms
Adult, Coronary Disease, Exons, Female, Genotype, Humans, Cholesterol, LDL, Male, Membrane Proteins, Middle Aged, Mutation, Protein Conformation, Risk, Triglycerides, Case-Control Studies, Sequence Analysis, DNA, Gene Silencing, Membrane Transport Proteins, Black People, White People, Asian People

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