Related Experiment Video

Updated: Jul 17, 2026

Use of Ultra-high Field MRI in Small Rodent Models of Polycystic Kidney Disease for In Vivo Phenotyping and Drug Monitoring
07:35

Use of Ultra-high Field MRI in Small Rodent Models of Polycystic Kidney Disease for In Vivo Phenotyping and Drug Monitoring

Published on: June 23, 2015

Pyloric stenosis in a newborn baby with polycystic kidneys

J Tennakoon1, T H H G Koh, G Alcock

  • 1Neonatal Intensive Care Unit, The Townsville Hospital, Douglas, Queensland, Australia. janakatennakoon@yahoo.com

Journal of Perinatology : Official Journal of the California Perinatal Association
|January 31, 2007
PubMed

Insights

Infantile hypertrophic pyloric stenosis (IHPS) and polycystic kidney disease (PKD) may be linked by nitric oxide synthetase (NOS) deficiency. This deficiency could explain pyloric stenosis, hypertension, and cyst development in PKD patients.

Area of Science:

  • Nephrology
  • Pediatric Surgery
  • Genetics

Background:

  • Infantile hypertrophic pyloric stenosis (IHPS) is associated with a higher rate of renal anomalies.
  • Previous case reports suggest a potential link between IHPS and polycystic kidney disease (PKD).

Observation:

  • The association between IHPS and PKD remains unclear, with possibilities including genetic factors, shared pathophysiology, or coincidence.
  • A proposed hypothesis involves nitric oxide synthetase (NOS) deficiency as a potential link.

Findings:

  • NOS deficiency may impair smooth muscle relaxation due to reduced local nitric oxide availability.
  • This mechanism could contribute to the development of pyloric stenosis.
  • NOS deficiency might also play a role in hypertension and cyst formation in autosomal-dominant PKD.

Implications:

  • Understanding the role of NOS deficiency could offer new insights into the pathogenesis of both IHPS and PKD.
  • This hypothesis warrants further investigation to clarify the relationship between these conditions.
  • Potential therapeutic strategies targeting nitric oxide pathways could be explored for related disorders.

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