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Hair Cortisol and Testosterone Levels in Patients With and Without Acute Myocardial Infarction(MI)

2014-08-27 03:12:55 | BioPortfolio

Summary

The purpose of this study is to determine whether hair levels of cortisol and testosterone are elevated in patients with acute MI compared to controls.

Description

Recently there has been a growing interest in measuring hair cortisol and testosterone levels. Hair grows approximately 1 centimeter per month, and hair analysis accurately reflects long-term endogenous production of these hormones. The association of elevated hair cortisol levels with chronic stress has been reported in several studies. Furthermore, we have recently demonstrated higher hair cortisol levels in patients admitted with acute myocardial infarction compared with patients admitted for other indications (the manuscript has recently been submitted for publication). Nevertheless it is still not clear whether hair cortisol levels are a risk factor for acute coronary event or for chronic cardiovascular diseases. In order to address this issue, further comparison of hair cortisol levels between patients with acute MI and a control group of patients with chronic cardiovascular diseases is needed.

Several studied have reported that endogenous testosterone concentrations are inversely associated with cardiovascular mortality and progression of atherosclerosis both in the coronary and the peripheral arteries. However these studies used a single serum testosterone level and therefore may not accurately represent the chronic endogenous production of this hormone. It may be that the association of testosterone levels and cardiovascular disease may be better evaluated using the hair technique. Nevertheless this association has not been studied yet.

Aim of the study:

To compare hair cortisol and testosterone levels in patients admitted with acute MI to stable patients with prior cardiovascular diseases or diabetes and patients with no history of cardiovascular diseases.

Secondary endpoint:

To evaluate the association between hair cortisol and testosterone with the burden of coronary atherosclerosis. The latter will be quantified only in the AMI patients undergoing coronary angiography by assessing the non culprit coronary arteries.

Study Design

Observational Model: Case Control, Time Perspective: Prospective

Conditions

Acute Myocardial Infarction

Intervention

Hair sampling for the measurement of cortisol and testosterone

Location

Meir Medical Center
Kfar-Saba
Israel

Status

Not yet recruiting

Source

Meir Medical Center

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:12:55-0400

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Medical and Biotech [MESH] Definitions

MYOCARDIAL INFARCTION in which the anterior wall of the heart is involved. Anterior wall myocardial infarction is often caused by occlusion of the left anterior descending coronary artery. It can be categorized as anteroseptal or anterolateral wall myocardial infarction.

A myocardial infarction that does not produce elevations in the ST segments of the ELECTROCARDIOGRAM. ST segment elevation of the ECG is often used in determining the treatment protocol (see also ST Elevation Myocardial Infarction).

A clinical syndrome defined by MYOCARDIAL ISCHEMIA symptoms; persistent elevation in the ST segments of the ELECTROCARDIOGRAM; and release of BIOMARKERS of myocardial NECROSIS (e.g., elevated TROPONIN levels). ST segment elevation in the ECG is often used in determining the treatment protocol (see also NON-ST ELEVATION MYOCARDIAL INFARCTION).

An episode of MYOCARDIAL ISCHEMIA that generally lasts longer than a transient anginal episode but that does not usually result in MYOCARDIAL INFARCTION.

MYOCARDIAL INFARCTION in which the inferior wall of the heart is involved. It is often caused by occlusion of the right coronary artery.

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