High viscosity of newborn extracellular matrix is the etiology of erythema toxicum neonatorum: neonatal jaundice?: hyaline membrane disease?
At the time of birth, the fetal ground substance is under the influence of maternal and placental hormones. Hormones are known to exert significant effect on ground substance. The ground substance viscosity that is ideal for intrauterine life is too viscous for the newborn. Sites of minor skin trauma develop swelling, inflammation and pustules. Dilution of tissue fluids causes formation of some of the mediators of inflammation including those responsible for intraepidermal pustule formation. The newborn responds to inflammation with eosinophilic granulocyte. The clinical lesions referred to as erythema toxicum neonatorum are known to localize at pressure sites. The skin lesions correct as maternal and placental hormone influence weakens. The entity occurs in 31 to 72% of white infants. The hormone induced viscosity changes may aid in better understanding some aspects of neonatal physiology; such as jaundice of the neonatal period, the eosinophilic granulocyte inflammatory response of the neonatal period and hyaline membrane disease.
Stone
O J
OJ
D004890:Erythema / Q000209:etiology* / Q000503:physiopathology; D005109:Extracellular Matrix / Q000502:physiology*; D006728:Hormones / Q000502:physiology; D006801:Humans; D006819:Hyaline Membrane Disease / Q000209:etiology*; D007231:Infant, Newborn; D007249:Inflammation / Q000209:etiology / Q000276:immunology; D007567:Jaundice, Neonatal / Q000209:etiology*; D014783:Viscosity
D006728:Hormones