Natriuretic peptides in children: physiology and clinical utility

Anne M Lenz1

  • 1Division of Pediatric Endocrinology, Diabetes and Metabolism, University of South Florida and All Children's Hospital, St Petersburg, Florida, USA. alenz@health.usf.edu

Insights

The natriuretic polypeptide system is crucial for pediatric cardiac, bone, and lipid metabolism. Measuring natriuretic polypeptides aids in diagnosing and treating cardiovascular disease in children.

Area of Science:

  • Pediatric Endocrinology
  • Cardiovascular Physiology
  • Metabolic Research

Background:

  • The natriuretic polypeptide family and their receptors are integral to physiological regulation.
  • Understanding their roles in pediatric cardiac, bone, and lipid metabolism is essential.

Purpose of the Study:

  • To review the genetics, biochemistry, and physiology of the natriuretic polypeptide system.
  • To explore its roles in pediatric cardiac, bone, and lipid metabolism.
  • To examine pharmacological agents targeting this system.

Main Methods:

  • Literature review of genetics, biochemistry, and physiology.
  • Analysis of clinical data on natriuretic polypeptide levels.
  • Evaluation of therapeutic applications.

Main Results:

  • Circulating natriuretic polypeptide levels are valuable diagnostic and prognostic markers for pediatric cardiovascular disease.
  • These polypeptides significantly influence growth and body composition in children.
  • The natriuretic polypeptide system offers potential therapeutic targets for various pediatric conditions.

Conclusions:

  • The natriuretic polypeptide system demonstrates significant clinical utility for pediatric patients.
  • It holds promise for managing cardiac, renal, bone, and metabolic diseases in children.
Abstract

Related Concept Videos

Transducer Mechanism: Enzyme-Linked Receptors01:27

Transducer Mechanism: Enzyme-Linked Receptors

Enzyme-linked receptors are cell-surface receptors acting as an enzyme or associating with an enzyme intracellularly. They make excellent drug targets. Drugs can bind to the extracellular ligand-binding domain or directly affect their enzymatic domain and alter their activity.
Major types that are helpful drug targets include:
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...
Hormonal Regulation of Blood Pressure01:17

Hormonal Regulation of Blood Pressure

Endocrinal or hormonal intervention in the cardiovascular system is predominantly exerted by the catecholamines - epinephrine and norepinephrine, as well as a slew of hormones that interact with renal function to modulate blood volume.
Epinephrine and Norepinephrine
The adrenal medulla releases epinephrine and norepinephrine, catecholamines that enhance and extend the sympathetic or "fight or flight" physiological response. These hormones escalate heart rate and the force of contraction while...
Antihypertensive Drugs: Potassium-Sparing Diuretics01:28

Antihypertensive Drugs: Potassium-Sparing Diuretics

Liddle syndrome is a genetically inherited form of hypertension characterized by the overactivity of epithelial sodium channels in the nephron, the functional unit of the kidney. This heightened activity leads to increased sodium reabsorption and excessive excretion of potassium. To counteract this, potassium-sparing diuretics such as amiloride are used. They function by blocking these sodium channels, thereby reducing the influx of sodium into the epithelial cells and minimizing the loss of...
Physiology of the Genitourinary System III: Urine Concentration and Dilution01:20

Physiology of the Genitourinary System III: Urine Concentration and Dilution

The kidneys concentrate or dilute urine to maintain water and electrolyte balance. Nephrons, particularly the loop of Henle, play a crucial role in this process through the countercurrent multiplication system. This system establishes a high osmolarity in the renal medulla, which is essential for water reabsorption. In the loop of Henle’s descending limb, water is reabsorbed into the surrounding medulla due to its permeability to water. In contrast, the ascending limb actively transports...
Pharmacokinetics in Pediatric Patients: Drug Excretion01:26

Pharmacokinetics in Pediatric Patients: Drug Excretion

In pediatric medicine, understanding the renal function and drug elimination nuances is crucial for administering safe and effective treatments. Newborns, in particular, display markedly slower renal functions than adults, profoundly affecting how drugs are cleared from their bodies. This slower drug clearance requires clinicians to extend the dosing intervals for many medications to prevent drug accumulation and toxicity while ensuring therapeutic efficacy.One key area where these adjustments...