Key result
Maternal streptozotocin-induced diabetes in rats resulted in marked asymmetrical septal hypertrophy in newborns that resolved 4 weeks after birth, indicating a secondary, transient condition.
In a rat model of maternal diabetes, newborn asymmetrical septal hypertrophy is a transient, secondary phenomenon that resolves within 4 weeks, mirroring the transient hypertrophic cardiomyopathy seen in human infants of diabetic mothers.
Transient hypertrophic cardiomyopathy has been described in human infants of diabetic mothers. The purpose of this study was twofold: first, to document the features of cardiac hypertrophy in newborns of female rats with streptozotocin-induced diabetes and second, to investigate the natural history of this cardiomyopathy. Marked asymmetrical septal hypertrophy with hypertrophy of myocytes was observed in newborns of diabetic female rats, whether or not the mothers received daily administration of NPH insulin. The abnormal cardiac morphology was no longer apparent 4 weeks after birth. Thus, in this model, the asymmetrical septal hypertrophy was secondary and was not a manifestation of genetically transmitted hypertrophic cardiomyopathy.
No takes yet. Share an insight, caveat, or question.
TAKINO et al. (1990) studied Cardiomyopathy in infants of diabetic mothers (animal model). Maternal streptozotocin-induced diabetes was evaluated on Cardiac hypertrophy and abnormal cardiac morphology. Maternal streptozotocin-induced diabetes in rats resulted in marked asymmetrical septal hypertrophy in newborns that resolved 4 weeks after birth, indicating a secondary, transient condition.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: