Related Experiment Video

Updated: Feb 10, 2026

Signal Acquisition, Score Interpretation, and Economics of a Non-Invasive Point-of-Care Test for Coronary Artery Disease
06:16

Signal Acquisition, Score Interpretation, and Economics of a Non-Invasive Point-of-Care Test for Coronary Artery Disease

Published on: August 9, 2024

958

Serum magnesium levels and risk of coronary artery disease: Mendelian randomisation study

Susanna C Larsson1, Stephen Burgess2,3, Karl Michaëlsson4

  • 1Unit of Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, 171 77, Stockholm, Sweden. susanna.larsson@ki.se.

BMC Medicine
|May 18, 2018
PubMed

Insights

Higher serum magnesium levels are genetically linked to a lower risk of coronary artery disease (CAD). This Mendelian randomization study suggests a potential causal relationship, supporting further research into magnesium supplementation for CAD prevention.

Area of Science:

  • Genetics and Cardiovascular Disease Epidemiology
  • Nutritional Genomics
  • Biomarker Discovery

Background:

  • Observational studies indicate an inverse relationship between serum magnesium and cardiovascular disease risk.
  • The causal nature of this association remains unconfirmed.
  • Coronary artery disease (CAD) is a major global health concern.

Purpose of the Study:

  • To investigate the potential causal association between serum magnesium levels and coronary artery disease (CAD) risk.
  • To utilize Mendelian randomization to infer causality from observational data.

Main Methods:

  • A Mendelian randomization analysis was performed using summary-level data.
  • Data originated from the CARDIoGRAMplusC4D consortium's genome-wide association meta-analysis.
  • Six single-nucleotide polymorphisms robustly associated with serum magnesium served as instrumental variables.

Main Results:

  • A genetic predisposition to higher serum magnesium levels was inversely associated with CAD risk.
  • Each 0.1-mmol/L increase in genetically predicted serum magnesium corresponded to an 12-17% reduced odds of CAD.
  • Findings were consistent across multiple sensitivity analyses, reinforcing the robustness of the results.

Conclusions:

  • This genetic study provides evidence supporting a causal inverse association between serum magnesium levels and CAD risk.
  • Further research, including randomized controlled trials, is warranted to confirm if magnesium supplementation reduces CAD risk.
  • Clinical trials may be particularly beneficial in populations at higher risk of hypomagnesaemia.
Abstract

Keywords:
Coronary artery diseaseMagnesiumMendelian randomisationSingle-nucleotide polymorphisms

More Related Videos

Direct Re-implantation of Left Coronary Artery into the Aorta in Adults with Anomalous Origin of Left Coronary Artery from the Pulmonary Artery ALCAPA13:10

Direct Re-implantation of Left Coronary Artery into the Aorta in Adults with Anomalous Origin of Left Coronary Artery from the Pulmonary Artery ALCAPA

Published on: April 24, 2017

19.2K
Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans04:40

Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans

Published on: August 28, 2018

16.1K

Related Concept Videos

Coronary Artery Disease I: Introduction01:30

Coronary Artery Disease I: Introduction

Coronary Artery Disease (CAD): An Overview with Scientific InsightsCoronary Artery Disease (CAD), often referred to as C-A-D, is a prevalent blood vessel disorder classified under the broader category of atherosclerosis. Atherosclerosis is a pathological process characterized by the hardening and narrowing of arteries due to the accumulation of atherosclerotic plaques. These plaques are composed of cholesterol, fatty substances, inflammatory cells, calcium, and fibrin, reducing blood flow to...
1.2K
Coronary Artery Disease II: Pathophysiology01:26

Coronary Artery Disease II: Pathophysiology

Coronary Artery Disease (CAD) originates from a series of events that impair the function of coronary arteries, the blood vessels responsible for delivering oxygen-rich blood to the heart muscle. The pathophysiology of CAD is closely linked to atherosclerosis, a chronic inflammatory and lipid-driven condition affecting the vascular endothelium.1. Endothelial DamageThe process begins with damage to the vascular endothelium, which serves as a protective barrier between the blood and the vessel...
516
Coronary Artery Disease V: Interprofessional Care01:27

Coronary Artery Disease V: Interprofessional Care

Interprofessional care for coronary artery disease includes pharmacological therapy and revascularization procedures.Pharmacological therapy for Coronary Artery Disease (CAD) aims to manage symptoms, prevent complications, and improve patient outcomes through various classes of medications:Antiplatelet Agents:Aspirin and Clopidogrel: These medications inhibit platelet aggregation, preventing blood clots, which is crucial for avoiding heart attacks and strokes. Doctors often prescribe these...
298
Coronary Artery Disease III: Clinical Manifestations01:30

Coronary Artery Disease III: Clinical Manifestations

Coronary Artery Disease (CAD) is a primary health risk worldwide, leading to significant morbidity and mortality. The condition arises from the buildup of atherosclerotic plaques within the coronary arteries, resulting in diminished blood supply to the heart muscle.The clinical manifestations of CAD vary widely, from asymptomatic stages to severe, life-threatening conditions. Understanding these manifestations is crucial for early diagnosis and effective management.Angina Pectoris: The Warning...
411
Coronary Artery Disease IV: Preventive Measures01:26

Coronary Artery Disease IV: Preventive Measures

Effective preventive measures for coronary artery disease (CAD) focus on controlling modifiable risk factors, including cholesterol abnormalities and lifestyle changes.Cholesterol ManagementFirst, the Mediterranean diet and the American Heart Association advocate for maintaining low-density lipoprotein (LDL) cholesterol levels below 100 mg/dL, with a more stringent recommendation of below 70 mg/dL for individuals at high risk. LDL cholesterol, often termed "bad cholesterol," can lead to the...
733
Peripheral Artery Disease I: Introduction01:30

Peripheral Artery Disease I: Introduction

Peripheral artery disease (PAD) predominantly results from atherosclerosis, which involves the accumulation of fatty deposits, or plaques, within the walls of arteries. This causes them to narrow and harden, significantly reducing blood flow. PAD predominantly affects the legs, particularly the arteries supplying the thighs and calves. In rare cases, it may involve other arteries, including those in the arms.Etiology of PAD:The principal cause of PAD is atherosclerosis, which results from fatty...
391