Related Experiment Video

Updated: Aug 8, 2026

Isolation of Atrial Myocytes from Adult Mice
08:34

Isolation of Atrial Myocytes from Adult Mice

Published on: July 25, 2019

Cardiac production of C-type natriuretic peptide in heart failure

Silvia Del Ry1, Maristella Maltinti, Marcello Piacenti

  • 1Institute of Clinical Physiology, National Research Council, Pisa, Italy.

Journal of Cardiovascular Medicine (Hagerstown, Md.)
|May 25, 2006
PubMed

Insights

The heart produces C-type natriuretic peptide (CNP) in patients with chronic heart failure. This study confirms elevated CNP levels in coronary sinus blood compared to aorta blood, supporting cardiac CNP production.

Area of Science:

  • Cardiology
  • Endocrinology
  • Biochemistry

Background:

  • Cardiac production of C-type natriuretic peptide (CNP) in chronic heart failure (CHF) patients was previously suggested.
  • Measuring plasma CNP levels in aortic root and coronary sinus samples indicated cardiac CNP release.
  • This study aimed to re-evaluate cardiac CNP production in CHF patients.

Purpose of the Study:

  • To confirm and strengthen the hypothesis of cardiac C-type natriuretic peptide production in patients with chronic heart failure.
  • To re-assess cardiac CNP production by analyzing blood samples from the coronary sinus and aorta.

Main Methods:

  • Cardiac CNP production was evaluated in 6 patients with chronic heart failure.
  • Blood samples were collected from the coronary sinus and aorta during cardiac catheterization.
  • CNP levels were measured using a specific immunometric assay after plasma sample extraction.

Main Results:

  • Significantly higher CNP levels were observed in coronary sinus blood (7.8 ± 1.3 pg/ml) compared to aorta blood (6.1 ± 1.5 pg/ml) (P = 0.034).
  • These findings align with previous research.
  • Combined data from this and a prior study (n=15) showed a significant increase in CNP concentrations between the two sites (P = 0.002).

Conclusions:

  • The study results provide further evidence supporting the hypothesis that the heart produces C-type natriuretic peptide in patients suffering from chronic heart failure.
  • Cardiac CNP production is a significant factor in the pathophysiology of chronic heart failure.
Abstract

More Related Videos

Cardiac Loading using Passive Left Atrial Pressurization and Passive Afterload for Graft Assessment08:49

Cardiac Loading using Passive Left Atrial Pressurization and Passive Afterload for Graft Assessment

Published on: August 2, 2024

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...
Heart Failure Drugs: Inhibitors of Renin-Angiotensin System01:26

Heart Failure Drugs: Inhibitors of Renin-Angiotensin System

The activation of the sympathetic nervous system and the renin-angiotensin-aldosterone system (RAAS) contributes to cardiac remodeling, and inhibiting the RAAS is a pharmacological target in heart failure management. As a result, neurohumoral modulation is a crucial treatment principle for managing heart failure. This approach involves using medications like ACE inhibitors (ACEIs), angiotensin receptor blockers (ARBs), β-blockers, mineralocorticoid receptor antagonists (MRAs), and neutral...
Pathophysiology of Heart Failure01:17

Pathophysiology of Heart Failure

Heart failure (HF) is a progressive syndrome involving ventricles that leads to inadequate cardiac output. It can be classified based on location and output or ejection fraction. Ejection fraction (EF) is an essential measurement in the diagnosis and surveillance of HF. Reduced EF corresponds to systolic heart failure (HFrEF). However, HF with preserved ejection fraction (HFpEF) is becoming increasingly prevalent. Also known as diastolic HF, this form of HF is related to aging. The...
Heart Failure VII: Nursing Interventions01:30

Heart Failure VII: Nursing Interventions

The first step in nursing management of a patient with heart failure involves thoroughly assessing the patient's medical history.Subjective Data: Obtain the patient's medical history of coronary artery disease, hypertension, myocardial infarction, and symptoms like dyspnea, orthopnea, and paroxysmal nocturnal dyspnea.Objective Data: Conduct a physical examination to identify findings such as jugular vein distention, pulmonary crackles, tachycardia, murmurs, peripheral edema, and vital signs,...
Cardiomyopathy VI: Nursing Management01:29

Cardiomyopathy VI: Nursing Management

Assessment: Nursing management of patients with cardiomyopathy begins with a thorough assessment of the patient's history, including a family history of cardiomyopathy or sudden cardiac death, personal history of heart disease, hypertension, diabetes, and any alcohol consumption or drug use.During the physical examination, assess vital signs, look for signs of heart failure (such as edema, jugular venous distention, and cyanosis), auscultate for abnormal heart sounds (like murmurs and gallops),...