Article (Scientific journals)
Immunocytochemical localization of vasoactive intestinal peptide (VIP) and neuropeptide Y (NPY) in the bovine ovary
Hulshof, S. C. J.; Dijkstra, G.; Van der Beek, E. M. et al.
1994In Biology of Reproduction, 50 (3), p. 553-560
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Abstract :
[en] The distribution of the neuropeptides vasoactive intestinal peptide (VIP) and neuropeptide Y (NPY) was studied immunocytochemically in bovine ovaries from 3 mo of gestation up to and including puberty, and from adult cows at three stages of the estrous cycle. The appearance of VIP and NPY immunoreactivity of 4.5-6 mo of gestation coincided with the onset of follicular development. In contrast to NPY, VIP was first found in the cortex. Both VIP and NPY immunoreactivity increased with age. From 9 mo of gestation onwards, VIP and NPY were found around blood vessels and non-vascular smooth muscle cells, in the stroma near preantral follicles, and in the theca externa of antral follicles. In addition, VIP-positive cells were observed exclusively in the granulosa layer of the preovulatory follicle at the time of the LH surge. The distribution of VIP- and NPY-immunoreactive fibers in the ovary may point to an effect of these neuropeptides on various physiological processes, including follicle development and ovarian blood flow. In addition, the presence of VIP-positive cells in the granulosa layer of the preovulatory follicle is indicative of a role for VIP in ovulation.
Disciplines :
Veterinary medicine & animal health
Author, co-author :
Hulshof, S. C. J.;  University of Utrecht - Utrecht - The Netherlands > Functional Morphology
Dijkstra, G.;  University of Utrecht - Utrecht - The Netherlands > Functional Morphology
Van der Beek, E. M.;  University of Utrecht - Utrecht -The Netherlands > Cell Biology of the Medical Faculty
Bevers, M. M.;  University of Utrecht - Utrecht - The Netherlands > Herd Health and Reproduction
Figueiredo, José Ricardo;  Université de Liège - ULiège > Faculté de Médecine Vétérinaire > IRSIA research unit
Beckers, Jean-François  ;  Université de Liège - ULiège > Département de sciences fonctionnelles > Physiologie de la reproduction
Van den Hurk, R.;  University of Utrecht - Utrecht - The Netherlands > Functional Morphology
Language :
English
Title :
Immunocytochemical localization of vasoactive intestinal peptide (VIP) and neuropeptide Y (NPY) in the bovine ovary
Publication date :
March 1994
Journal title :
Biology of Reproduction
ISSN :
0006-3363
eISSN :
1529-7268
Publisher :
Society for the Study of Reproduction, Madison, United States - Wisconsin
Volume :
50
Issue :
3
Pages :
553-560
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 21 February 2009

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