Advertisement

Topics

Mutations, Hormone Therapy (HRT) and Venous Thromboembolism

2014-08-27 03:57:46 | BioPortfolio

Summary

To assess the interaction between hormone replacement therapy and the prothrombotic mutations, Factor V Leiden and the recently described prothrombin mutation (20210A) on the incidence of venous thromboembolism (VTE) in a population-based case-control study conducted at Group Health Cooperative of Puget Sound (GHC).

Description

BACKGROUND:

Epidemiologic studies have identified Factor V Leiden as the most common cause of heritable thrombophilia, a prothrombotic mutation associated with a 5 to 7-fold increase in the risk of venous thromboembolism (VTE). In pre-menopausal women, the use of oral contraceptives is associated with a 4-fold increase in VTE risk, and the joint effects of oral contraceptive use and Factor V Leiden carriership increase the VTE risk of by a factor of 35. Recently, the results of several observational studies and randomized clinical trials suggest that in post-menopausal women, the use of hormone replacement therapy is associated with a 3-fold increase in VTE risk. Whether post-menopausal women with prothrombotic mutations experience a similar 20-fold increase in risk when they take post-menopausal hormones remains unknown.

DESIGN NARRATIVE:

In this case-control study, post-menopausal women with a first episode of objectively confirmed venous thromboembolism, and population-based controls were identified and recruited from the GHC enrollment files. Controls were frequency matched to the cases on age and calendar-year. Data collection included a review of ambulatory medical record and a telephone interview. The GHC computerized pharmacy database was used to assess exposure to hormone replacement therapy. A venous blood specimen was obtained from consenting subjects, processed into aliquots of white cells, plasma, and red cells, and stored at 70 degrees C prior to laboratory analysis. DNA was extracted from white cells, and molecular genotyping assays were conducted to assess carriership of prothrombotic mutations.

Study Design

Observational Model: Natural History

Conditions

Cardiovascular Diseases

Status

Completed

Source

National Heart, Lung, and Blood Institute (NHLBI)

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:57:46-0400

Clinical Trials [1283 Associated Clinical Trials listed on BioPortfolio]

Cardiovascular Diseases in HIV-infected Subjects (HIV-HEART Study)

Human immunodeficiency virus (HIV) infection has been associated with a variety of cardiovascular diseases. Even most industrialised countries exhibit a growing and aging population of HIV...

The Effects of Aerobic Exercise in Microvascular Endothelium Function in Patients With Cardiovascular Diseases

This study evaluates the effects of different volumes of aerobic exercise training in cardiovascular parameters of patients with cardiovascular diseases enrolled in a cardiac rehabilitatio...

ARROW:identificAtion of postpRandial biomaRkers tOWards Cardiovascular Prevention

The purpose of this study is to better understand the association between the postprandial biomarker responses after a food challenge with the development of cardiovascular diseases in hea...

Development, Testing, and Validation of A Protocol To Assess Cardiovascular Reactivity in Human Populations

To develop a comprehensive protocol for assessing cardiovascular reactivity to stressors, for use in epidemiological and clinical investigations of cardiovascular diseases in healthy popul...

Cardiovascular Diseases in the Silesian Region in Poland.

The Silesian Cardiovascular Database is an observational study of all patients hospitalized due to cardiovascular diseases. The date include information on the clinical characteristics, tr...

PubMed Articles [11578 Associated PubMed Articles listed on BioPortfolio]

Introduction and Update on Obesity and Cardiovascular Diseases 2018.

Pharmacological Modulation of Vagal Nerve Activity in Cardiovascular Diseases.

Cardiovascular diseases are life-threatening illnesses with high morbidity and mortality. Suppressed vagal (parasympathetic) activity and increased sympathetic activity are involved in these diseases....

Human Emotions on the Onset of Cardiovascular and Small Vessel Related Diseases.

The aim of the present study was to examine the relation between understanding of emotions and cardiovascular related diseases, namely coronary heart disease, diabetes mellitus and obesity. The unique...

Endothelial function and dysfunction: impact of metformin.

Cardiovascular and metabolic diseases remain the leading cause of morbidity and mortality worldwide. Endothelial dysfunction is a key player in the initiation and progression of cardiovascular and met...

Perturbation of metabolic pathways mediates the association of air pollutants with asthma and cardiovascular diseases.

Epidemiologic evidence indicates common risk factors, including air pollution exposure, for respiratory and cardiovascular diseases, suggesting the involvement of common altered molecular pathways.

Medical and Biotech [MESH] Definitions

Pathological conditions involving the CARDIOVASCULAR SYSTEM including the HEART; the BLOOD VESSELS; or the PERICARDIUM.

Methods and procedures for the diagnosis of diseases or dysfunction of the cardiovascular system or its organs or demonstration of their physiological processes.

Diseases of long duration and generally slow progression. The four main types of noncommunicable diseases are CARDIOVASCULAR DISEASES (e.g., heart attacks and stroke), CANCER, chronic respiratory diseases (e.g., CHRONIC OBSTRUCTIVE PULMONARY DISEASE and ASTHMA) and DIABETES MELLITUS.

Unexpected rapid natural death due to cardiovascular collapse within one hour of initial symptoms. It is usually caused by the worsening of existing heart diseases. The sudden onset of symptoms, such as CHEST PAIN and CARDIAC ARRHYTHMIAS, particularly VENTRICULAR TACHYCARDIA, can lead to the loss of consciousness and cardiac arrest followed by biological death. (from Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine, 7th ed., 2005)

Dental care for patients with chronic diseases. These diseases include chronic cardiovascular, endocrinologic, hematologic, immunologic, neoplastic, and renal diseases. The concept does not include dental care for the mentally or physically disabled which is DENTAL CARE FOR DISABLED.

More From BioPortfolio on "Mutations, Hormone Therapy (HRT) and Venous Thromboembolism"

Advertisement
Quick Search
Advertisement
Advertisement

 

Relevant Topics

Endocrinology
Diabetes Diabetes Endocrine Obesity Oxycontin Renal Disease Thyroid Disorders Endocrinology is the study of the endocrine glands and the hormones that they secrete (Oxford Medical Dictionary). There are several groups of h...

Nutrition
Within medicine, nutrition (the study of food and the effect of its components on the body) has many different roles. Appropriate nutrition can help prevent certain diseases, or treat others. In critically ill patients, artificial feeding by tubes need t...

Women's Health
Women's Health - key topics include breast cancer, pregnancy, menopause, stroke Follow and track Women's Health News on BioPortfolio: Women's Health News RSS Women'...


Searches Linking to this Trial