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Gastrointestinal hormones (anorexigenic peptide YY and orexigenic ghrelin) influence neural tube development


Gastrointestinal (GI) hormones play an important role in GI secretion, motility, and eating behaviors. It was recently suggested that GI hormones may have a trophic role in GI tract. Here we demonstrate that two principal GI hormones, anorexigenic peptide YY (PYY) and orexigenic ghrelin, affect neural tube development. Chronic administration into the pregnant mice or transgenic overexpression of PYY led to a neural tube defect (NTD) in the embryos that was blocked by ghrelin. PYY Y1 receptor antagonist prevented the occurrence of NTD induced not only by PYY but also by vitamin A, a well-known teratogen in humans and animals. Y1 receptor deficiency also engendered NTDs, indicating the need to maintain normal Y1 receptor signaling. The present study is the first linking GI hormones to the leading cause of infant mortality and provides a novel insight for neurogenesis in which materno-fetal communication through GI hormones appears to be important.

Type Journal
ISBN 1530-6860 (Electronic)
Authors Yuzuriha, H.;Inui, A.;Asakawa, A.;Ueno, N.;Kasuga, M.;Meguid, M. M.;Miyazaki, J.;Ninomiya, M.;Herzog, H.;Fujimiya, M. :
Responsible Garvan Author Prof Herbert Herzog
Publisher Name FASEB JOURNAL
Published Date 2007-01-01
Published Volume 21
Published Issue 9
Published Pages 2108-12
Status Published in-print
URL link to publisher's version
OpenAccess link to author's accepted manuscript version