Related Experiment Videos

Prostaglandin levels: predictors of indomethacin responsiveness

C Hammerman, W Zaia, S Berger

    Pediatric Cardiology
    |January 1, 1986
    PubMed

    Insights

    Elevated 6 keto prostaglandin F1 alpha (6 keto PGF1 alpha) levels in premature infants with patent ductus arteriosus may predict a positive response to indomethacin treatment. This finding aids in tailoring therapy for neonates.

    Area of Science:

    • Neonatal Medicine
    • Pediatric Cardiology
    • Pharmacology

    Background:

    • Patent ductus arteriosus (PDA) is a common condition in premature infants.
    • Indomethacin is a standard treatment for PDA, but response rates vary.
    • Predicting indomethacin responsiveness is crucial for optimizing neonatal care.

    Purpose of the Study:

    • To investigate the correlation between pretreatment plasma prostaglandin levels and clinical response to indomethacin in premature infants with PDA.
    • To determine if specific prostaglandin levels can predict indomethacin efficacy.

    Main Methods:

    • Plasma levels of 6 keto PGF1 alpha and PGE2 were measured pretreatment in 16 premature infants with PDA.
    • Infants were treated with indomethacin, and clinical response (murmur disappearance) was assessed.
    • Correlation analysis was performed between prostaglandin levels and treatment outcomes.

    Main Results:

    • Nine infants responded well to indomethacin; eight had elevated baseline 6 keto PGF1 alpha (>500 pg/ml).
    • Seven infants did not respond; six had normal 6 keto PGF1 alpha levels (<500 pg/ml).
    • 6 keto PGF1 alpha showed better specificity and sensitivity than PGE2 in predicting response.

    Conclusions:

    • Pretreatment 6 keto PGF1 alpha levels appear to correlate with indomethacin responsiveness in premature neonates with PDA.
    • Measuring 6 keto PGF1 alpha may help predict which infants will benefit from indomethacin therapy.
    • This biomarker could guide individualized treatment strategies for PDA in neonates.

    Related Concept Videos

    Treatment for Pulmonary Arterial Hypertension: Prostacyclin Receptor Agonists01:23

    Treatment for Pulmonary Arterial Hypertension: Prostacyclin Receptor Agonists

    Prostacyclin receptor agonists are a class of therapeutic agents integral to managing pulmonary arterial hypertension (PAH). These drugs operate by mimicking the action of prostaglandin I2, or PGI2, a naturally occurring compound in the body.
    These agonists bind to the IPR receptor situated on the plasma membrane of the pulmonary artery smooth muscle cells. This binding triggers a cascade of reactions known as the GS-AC-cAMP-PKA pathway. This pathway results in the relaxation of smooth muscle...
    Drugs for Peptic Ulcer Disease: Prostaglandin Analogs as Mucosal Protective Agents01:20

    Drugs for Peptic Ulcer Disease: Prostaglandin Analogs as Mucosal Protective Agents

    The gastric mucosa produces prostaglandins E2 (PGE2) and prostacyclin (PGI2), crucial in maintaining gastric health. They exert cytoprotective effects, including increasing bicarbonate secretion, releasing protective mucin, reducing gastric acid output, and preventing harmful vasoconstriction. These effects are mediated through various receptors, such as EP1, EP2, EP3, and EP4.
    Non-steroidal anti-inflammatory drugs (NSAIDs) can induce peptic ulcers by inhibiting cyclooxygenase, decreasing...
    Pharmacodynamic Models: Direct Effect Model and Indirect Response Model01:29

    Pharmacodynamic Models: Direct Effect Model and Indirect Response Model

    Pharmacodynamic models are essential tools in understanding the relationship between drug concentrations and their effects on biological systems. By characterizing the dynamics of drug action, these models guide dose selection, optimize therapeutic efficacy, and inform the development of new drugs. Two major classes of pharmacodynamic models include direct effect and indirect response models.Direct Effect ModelsDirect effect models describe the immediate relationship between drug concentration...