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The role of prostaglandin receptors in regulating cerebral blood flow in the perinatal period
Author(s) -
Chemtob Sylvain,
Li DingYou,
Abran Daniel,
Hardy Pierre,
Peri Krishna,
Varma Daya R
Publication year - 1996
Publication title -
acta pædiatrica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 115
eISSN - 1651-2227
pISSN - 0803-5253
DOI - 10.1111/j.1651-2227.1996.tb14077.x
Subject(s) - medicine , cerebral blood flow , period (music) , prostaglandin , receptor , perinatal period , physiology , pregnancy , biology , physics , acoustics , genetics
Prostaglandins exert significant effects on the range of cerebral blood flow autoregulation. However, the newborn exhibits a narrow cerebral blood flow autoregulatory range compared to the adult, and this apparently contributes to the susceptibility of the newborn to major perinatal complications such its intraventricular cerebral haemorrhage. Reduced vasoconstriction in response to prostaglandins due to the fewer prostaglandin receptors, especially for PGE 2 (EP) and PGF 2α (FP), seems to contribute in part to the narrower range of cerebral blood flow autoregulation in the newborn. Evidence suggests that high levels of prostaglandins in the perinatal period are responsible for the down‐regulation of neurovascular EP and FP receptors. We review the pharmacology of prostaglandin receptors, in particular PGE 2 and PGF 2α receptors, their ontopeny on the neural vasculature. the perinatal regulation of their expression, and how these changes relate to the control of neural blood flow autoregulation.