Related Experiment Videos

Long chain omega-3 fatty acids and cardiovascular disease: a systematic review

Javier Delgado-Lista1, Pablo Perez-Martinez, Jose Lopez-Miranda

  • 1Lipids and Atherosclerosis Unit, Department of Medicine, IMIBIC/Hospital Universitario Reina Sofía/Universidad de Cordoba, Cordoba, Spain.

The British Journal of Nutrition
|May 18, 2012
PubMed

Insights

Marine omega-3 fatty acids significantly reduce cardiovascular events and cardiac death. These fatty acids, including docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA), are particularly effective for individuals with high cardiovascular risk.

Area of Science:

  • Cardiology
  • Nutritional Science
  • Preventive Medicine

Background:

  • Cardiovascular disease is a leading health concern in developed nations.
  • Residual cardiovascular risk persists despite current therapies.
  • Marine omega-3 fatty acids (DHA and EPA) are recognized for their potential cardiovascular benefits.

Purpose of the Study:

  • To synthesize current evidence on the impact of omega-3 fatty acids on cardiovascular event rates.
  • To evaluate the efficacy of omega-3 supplementation in reducing cardiovascular risk.

Main Methods:

  • Systematic review and meta-analysis of randomized controlled trials.
  • Searched MEDLINE and EMBASE databases for studies of omega-3 fatty acids (capsules or dietary) versus placebo or usual diet.
  • Included studies with a duration of at least 6 months, focusing on cardiovascular events, cardiac death, coronary events, and all-cause mortality.

Main Results:

  • A 10% reduction in the overall risk of cardiovascular events (OR 0.90).
  • An 18% decrease in the risk of coronary events (fatal and non-fatal) (OR 0.82).
  • A 9% reduction in cardiac death risk (OR 0.91) and a trend towards lower all-cause mortality.

Conclusions:

  • Marine omega-3 fatty acids demonstrate effectiveness in preventing cardiovascular events.
  • Omega-3 fatty acids are beneficial in reducing cardiac death and coronary events.
  • The protective effects are most pronounced in individuals with high cardiovascular risk.
Abstract

Related Concept Videos

Atherosclerosis III: Management01:26

Atherosclerosis III: Management

Management of atherosclerosis involves an integrated strategy encompassing pharmacological treatment, surgical interventions, lifestyle changes, and nutrition therapy to address the multifactorial nature of the disease.Pharmacological TherapyA cornerstone of atherosclerosis management is the use of pharmacological agents. Statins, such as atorvastatin, are pivotal in inhibiting HMG-CoA reductase, an enzyme that catalyzes an initial step in cholesterol synthesis in the liver. This reduction in...
Lipid-derived Compounds in the Human Body01:31

Lipid-derived Compounds in the Human Body

Fats and lipids are crucial components in the human body. Some lipid-derived compounds, such as fat-soluble vitamins, eicosanoids, lipoproteins, and glycolipids, also play unique roles to support various  biological processes .
Fat-soluble Vitamins
Fat-soluble vitamins, including vitamins A, D, E, and K, are required in minimal quantities, but their deficiencies can lead to severely abnormal physiological conditions. For example, vitamin A deficiency can cause night blindness, dry skin, delayed...
Structure of Lipids03:38

Structure of Lipids

Lipids include a diverse group of compounds that are largely nonpolar in nature. This is because they are hydrocarbons that include mostly nonpolar carbon-carbon or carbon-hydrogen bonds. Non-polar molecules are hydrophobic (“water fearing”), or insoluble in water. Lipids perform many different functions in a cell. Cells store energy for long-term use in the form of fats. Lipids also provide insulation from the environment for plants and animals. For example, they help keep aquatic birds and...
Ischemic Heart Disease: Overview01:17

Ischemic Heart Disease: Overview

Ischemic heart disease occurs when the heart's blood supply dwindles, causing an ominous lack of oxygen and nutrients. This deficiency, stemming from reduced or obstructed blood flow, spells danger, leading to heart muscle damage and dysfunction.
Atherosclerosis, the primary malefactor, orchestrates this dangerous condition. It manifests as the accumulation of fatty deposits, akin to insidious plaques, within arterial walls. As time elapses, these plaques metamorphose, hardening and narrowing...
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...
Atherosclerosis I: Introduction01:30

Atherosclerosis I: Introduction

Atherosclerosis is a progressive disorder characterized by the buildup of plaques on the arterial inner wall, causing them to narrow and harden over time. These plaques comprise lipids, calcium, blood components, carbohydrates, and fibrous tissue. The process primarily affects the intima of large and medium-sized arteries, reducing blood flow in any artery.Etiology and risk factorsThe cause of atherosclerosis is multifactorial, involving a complex interplay among endothelial injury, lipid...