Hyperhomocysteinemia: a risk factor for arterial and venous thrombotic disease

M Cattaneo1

  • 1Angelo Bianchi Bonomi Hemophilia and Thrombosis Center, IRCCS Ospedale Maggiore, University of Milan, Italy.

International Journal of Clinical & Laboratory Research
|January 1, 1997
PubMed

Insights

Moderate hyperhomocysteinemia is a significant risk factor for arterial and venous thrombosis. Supplementing folic acid, vitamin B12, and B6 may reduce thrombotic disease risk.

Area of Science:

  • Cardiovascular Medicine
  • Metabolic Disorders
  • Thrombosis Research

Background:

  • Severe hyperhomocysteinemia, linked to hereditary homocysteine metabolism defects, elevates thrombosis risk.
  • This observation spurred research into moderate hyperhomocysteinemia and general population thrombotic risk.

Purpose of the Study:

  • To investigate the association between moderate hyperhomocysteinemia and thrombotic risk.
  • To explore the role of genetic and environmental factors in hyperhomocysteinemia.
  • To assess the potential impact of vitamin supplementation on thrombotic diseases.

Main Methods:

  • Retrospective case-control studies.
  • Prospective cohort studies.
  • Analysis of genetic and environmental factors influencing homocysteine levels.

Main Results:

  • Moderate hyperhomocysteinemia is a frequent, independent risk factor for premature arterial disease (coronary, cerebral, peripheral).
  • Moderate hyperhomocysteinemia is associated with venous thrombosis in specific patient groups and the general population.
  • Inadequate intake of folic acid, vitamin B12, or vitamin B6 is a common cause of hyperhomocysteinemia.

Conclusions:

  • Moderate hyperhomocysteinemia significantly increases the risk of both arterial and venous thrombotic events.
  • Dietary supplementation with folic acid, vitamin B12, and vitamin B6 holds potential to mitigate the public health burden of thrombotic diseases.

Related Concept Videos

Anticoagulant Drugs: Low-Molecular-Weight Heparins01:30

Anticoagulant Drugs: Low-Molecular-Weight Heparins

Hemostasis is a crucial process that prevents excessive blood loss from damaged blood vessels. It involves various mechanisms such as vasoconstriction, platelet adhesion and activation, and fibrin formation. The importance of each mechanism depends on the type of vessel injury. In contrast, thrombosis is the abnormal formation of a blood clot within the blood vessels, leading to potential complications if the clot obstructs blood flow. Thrombosis can be caused by increased coagulability of the...
Disorders of Hemostasis01:24

Disorders of Hemostasis

Hemostasis, the process that stops bleeding after a blood vessel injury, is crucial for maintaining the integrity of the circulatory system. However, disorders of hemostasis can disrupt this delicate balance, leading to either excessive clotting or bleeding. These disorders can be broadly classified into thromboembolic disorders and bleeding disorders.
Thromboembolic Disorders
Two factors primarily cause thromboembolic conditions.
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...
Venous Thrombosis I: Introduction01:30

Venous Thrombosis I: Introduction

Venous thrombosis, the most common disorder of the veins, involves the formation of a thrombus or blood clot associated with vein inflammation. It can be classified as either superficial vein thrombosis or deep vein thrombosis.Superficial Vein Thrombosis: This involves the formation of a thrombus in a superficial vein, usually the greater or lesser saphenous vein. Though less severe than deep vein thrombosis (DVT), SVT can lead to complications if untreated.Deep Vein Thrombosis (DVT): This...
Venous Thrombosis II: Clinical Manifestations and Diagnostic Studies01:20

Venous Thrombosis II: Clinical Manifestations and Diagnostic Studies

The key difference between Superficial Vein Thrombosis (SVT) and Deep Vein Thrombosis (DVT) lies in their location and severity.Clinical ManifestationsSVT typically presents with localized pain, tenderness, and redness along the course of a superficial vein, often accompanied by a palpable, cord-like structure under the skin. This condition is usually less dangerous than DVT but can be uncomfortable and may lead to complications such as cellulitis or, rarely, a clot extension into the deep...
Venous Thrombosis III: Interprofessional Care01:29

Venous Thrombosis III: Interprofessional Care

Venous thrombosis requires effective prevention and treatment strategies to improve patient outcomes and reduce potential complications.Prevention StrategiesHealthcare providers must prioritize preventing venous thromboembolism (VTE) for all adult patients upon admission. Interventions depend on bleeding and thrombosis risk, medical history, current medications, diagnoses, planned procedures, and patient preferences. Patients on bed rest should change positions every two hours and, if not...