[Left ventricular mass, diastolic function and collagen metabolism biomarkers in essential hypertension]

Carlos Macías Blanco1, Daniel Fatela-Cantillo, Luis Jiménez-Jiménez

  • 1Empresa Pública Hospital Alto Guadalquivir, Hospital Alta Resolución Valle del Guadiato, Peñarroya, Córdoba, España. charlymacias@hotmail.com

Medicina Clinica
|September 24, 2011
PubMed

Insights

Markers of collagen metabolism, including carboxy-terminal propeptide of procollagen type I (PICP), are linked to left ventricular hypertrophy and diastolic dysfunction in resistant hypertension, independent of blood pressure. This highlights collagen

Area of Science:

  • Cardiovascular Research
  • Biochemistry
  • Hypertension Studies

Context:

  • Resistant hypertension is associated with significant cardiovascular remodeling.
  • Collagen metabolism plays a crucial role in cardiac structure and function.
  • Understanding molecular mechanisms underlying hypertensive heart disease is vital.

Purpose:

  • To investigate the association between serum collagen metabolism biomarkers and left ventricular mass index (LVMI) in resistant hypertension.
  • To evaluate the relationship between these biomarkers and diastolic dysfunction.
  • To compare biomarker levels in patients with resistant hypertension versus healthy controls.

Summary:

  • Patients with resistant hypertension exhibited elevated PICP and reduced ICTP levels compared to controls.
  • PICP showed a significant positive correlation with LVMI and a negative correlation with diastolic function.
  • Differences in collagen biomarkers were observed between groups with and without hypertrophy or diastolic dysfunction, irrespective of blood pressure levels.

Impact:

  • These findings suggest that collagen synthesis and degradation markers may be independently associated with myocardial hypertrophy and diastolic dysfunction in resistant hypertension.
  • This research provides insights into the pathobiology of hypertensive heart disease.
  • Identifies potential biomarkers for assessing cardiac remodeling in hypertensive patients.
Abstract

Related Concept Videos

Heart Failure II: Pathophysiology01:29

Heart Failure II: Pathophysiology

Systolic Heart Failure and Compensatory MechanismsSystolic heart failure (also termed HFrEF, Heart Failure with Reduced Ejection Fraction) is the most prevalent type of heart filure. It results in a decreased volume of blood being pumped from the ventricle. The aortic arch and carotid sinuses have baroreceptors that detect reduced blood pressure, triggering the sympathetic nervous system (SNS) to release epinephrine and norepinephrine. Initially, this response aims to boost heart rate and...
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...
Hypertension II: Pathophysiology01:29

Hypertension II: Pathophysiology

Hypertension is a chronic condition in which the blood's force against artery walls is excessively high, posing risks such as heart disease. The condition's underlying mechanisms involve complex interactions among the cardiovascular, kidney, and autonomic nervous systems.Renin-Angiotensin-Aldosterone System (RAAS): This system significantly influences blood pressure regulation. When blood pressure decreases, the kidneys secrete renin. This enzyme transforms angiotensinogen, a plasma protein,...
Hypertension III: Clinical Manifestations and Diagnostic Studies01:30

Hypertension III: Clinical Manifestations and Diagnostic Studies

Hypertension is asymptomatic and also referred to as the "silent killer" until it progresses to a severe stage or causes target organ disease. Patients may experience symptoms stemming from the strain on blood vessels and tissues in various organs or the heart's increased workload.Physical exams might show no abnormalities other than high blood pressure. Signs of vascular damage, when present, correspond to the organs supplied by the affected vessels, leading to target organ damage. For...
Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

Cardiomyopathy III: Hypertrophic Cardiomyopathy

Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
Mitral Regurgitation I: Introduction01:20

Mitral Regurgitation I: Introduction

Mitral regurgitation is characterized by the backward circulation of blood from the left ventricle to the left atrium during systole, a phase of the cardiac cycle when the heart contracts and pumps blood out of the chambers. This abnormal flow occurs primarily due to the dysfunction of the mitral valve or its supporting structures, which include the mitral leaflets, chordae tendineae, annulus, and papillary muscles.Etiology and Mechanisms:Primary Mitral Regurgitation: This type arises from...