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Pathogenesis of early atherosclerotic lesions in infants

Luigi Matturri1, Giulia Ottaviani, Giancarlo Corti

  • 1Institute of Pathology, University of Milan, Via della Commenda 19, 20122 Milan, Italy. luigi.matturri@unimi.it

Pathology, Research and Practice
|July 9, 2004
PubMed

Insights

Infant formula feeding and parental smoking are linked to early coronary artery atherosclerosis. These factors may contribute to atherosclerotic lesions in infants, with combined exposure showing more severe effects.

Area of Science:

  • Cardiovascular Pathology
  • Pediatric Cardiology
  • Public Health

Background:

  • Early atherosclerotic lesions in infants are multifactorial.
  • Proposed risk factors include lipid levels, infections, and genetics.
  • Concerns exist regarding infant formula safety and its potential impact.

Purpose of the Study:

  • To investigate the role of infant formula feeding and parental cigarette smoking in the pathogenesis of early atherosclerotic lesions.
  • To correlate these factors with histologic findings in coronary arteries of infants.

Main Methods:

  • Histologic examination of coronary arteries from 36 sudden infant death syndrome cases.
  • Serial sectioning and paraffin embedding for detailed analysis.
  • Correlation of atherosclerotic lesion presence and severity with feeding type and smoking exposure.

Main Results:

  • Early atherosclerotic lesions were detected in 67% of cases.
  • Lesions ranged from mild myointimal thickening to lumen-reducing plaques.
  • Significant correlation found between lesions and formula feeding/parental smoking.
  • Morphologic patterns differed based on exposure; combined factors showed larger, more diffuse lesions.

Conclusions:

  • Infant formula feeding and parental cigarette smoking may promote early atherosclerosis.
  • These factors can exert an atherogenic effect from the first months of life.
  • Combined exposure to formula and smoking exacerbates coronary artery alterations.

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