Related Experiment Videos

Leptin, but not adiponectin, is a predictor of recurrent cardiovascular events in men: results from the LIPID study

S Söderberg1, D Colquhoun, A Keech

  • 1Department of Public Health and Clinical Medicine, Cardiology, Umeå University, Umeå, Sweden.

International Journal of Obesity (2005)
|December 4, 2008
PubMed

Insights

Plasma leptin levels predict recurrent cardiovascular events in men with acute coronary syndromes. Adiponectin did not show a similar association. Pravastatin treatment was linked to lower leptin levels.

Area of Science:

  • Cardiovascular Medicine
  • Endocrinology
  • Biomarkers

Background:

  • Acute coronary syndromes (ACS) are a major cause of cardiovascular morbidity and mortality.
  • Identifying reliable biomarkers for predicting recurrent cardiovascular events is crucial for risk stratification and management.
  • Leptin and adiponectin are adipokines with known roles in metabolism and inflammation, potentially influencing cardiovascular outcomes.

Purpose of the Study:

  • To investigate the association between plasma leptin and adiponectin levels and the risk of recurrent cardiovascular events in men with a history of ACS.
  • To determine if these adipokines are independent predictors of future cardiovascular events after an initial ACS event.

Main Methods:

  • A nested case-control study design was employed within the Long-Term Intervention with Pravastatin in Ischaemic Disease (LIPID) trial.
  • Plasma samples were collected 4-6 years post-entry from men who experienced recurrent events and matched controls who remained event-free.
  • Conditional logistic regression analysis was used to examine the association between adipokine levels and cardiovascular events, adjusting for various risk factors.

Main Results:

  • Plasma leptin levels were significantly associated with an increased risk of recurrent cardiovascular events, with higher quartiles showing a dose-dependent risk.
  • This association remained significant even after adjusting for traditional cardiovascular risk factors and obesity.
  • Plasma adiponectin levels did not predict recurrent cardiovascular events.
  • Men randomized to pravastatin treatment exhibited lower plasma leptin levels compared to those on placebo.

Conclusions:

  • Plasma leptin is a significant and independent predictor of recurrent cardiovascular events, including cardiovascular death, nonfatal myocardial infarction, and stroke, in men with prior ACS.
  • Adiponectin is not a significant predictor of these events in this population.
  • Pravastatin therapy may influence leptin levels, suggesting a potential link between statin treatment and this adipokine.
Abstract

Related Concept Videos

Blood Studies for Cardiovascular System II: CRP, Hcy, and Cardiac Natriuretic Peptide Markers01:19

Blood Studies for Cardiovascular System II: CRP, Hcy, and Cardiac Natriuretic Peptide Markers

Cardiac biomarkers are critical in diagnosing, prognosing, and managing cardiovascular diseases. Routine measurement of specific biomarkers such as B-type natriuretic peptide (BNP), C-reactive protein (CRP), and homocysteine (Hcy) is common practice in clinical settings to evaluate heart function and predict cardiovascular events.
These markers indicate stress or strain on the heart muscle:
Natriuretic Peptides (BNP)
Cardiac myocytes produce these hormones in response to ventricular stretching...
Blood Studies for Cardiovascular System III: Serum Lipid Profile01:25

Blood Studies for Cardiovascular System III: Serum Lipid Profile

Understanding serum lipids is crucial for maintaining cardiovascular health and preventing heart disease and stroke.
Serum lipids are fats and fatty substances in the blood and are crucial for various bodily functions, including energy storage, cellular structure, and hormone production. Serum lipids consist of cholesterol, triglycerides, and phospholipids.
Cholesterol is a soft, fat-like substance found in all body cells. It is crucial for producing hormones, vitamin D, and substances that aid...
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-Lowering Drugs: Statins and Miscellaneous Agents01:20

Lipid-Lowering Drugs: Statins and Miscellaneous Agents

Hyperlipidemia, a medical condition often referred to as high cholesterol, is characterized by abnormally elevated levels of lipids in the bloodstream. When present in excess, these lipids, specifically cholesterol and triglycerides, can lead to serious health complications, often involving cardiovascular diseases. Illnesses like atherosclerosis, heart attacks, and pancreatitis have all been linked to untreated hyperlipidemia. This means controlling and regulating cholesterol and triglyceride...
Overview of Lipid Metabolism01:24

Overview of Lipid Metabolism

Lipid metabolism is a crucial process in the human body that involves the synthesis and degradation of lipids. This process is essential for energy production, cell membrane formation, and hormone production, among other functions.
Lipolysis: The Breakdown of Lipids:
Lipolysis is the process of breaking down lipids, particularly triglycerides, into glycerol and fatty acids. This process typically occurs in the adipose tissue and is triggered by various hormones, including glucagon and...
Cholesterol: Significance and Regulation01:29

Cholesterol: Significance and Regulation

Although not a source of energy, cholesterol plays a significant role as a foundational structure for bile salts, steroid hormones, and vitamin D, as well as being a crucial component of plasma membranes. Approximately 15% of blood cholesterol is derived from our diet, with the remainder synthesized from acetyl CoA by the liver and intestines. Cholesterol is eliminated from the body through its conversion into bile salts, which are eventually discarded in the feces.
Considering cholesterol and...