Abstract
Pineal melatonin secretion mediates photoperiodic regulation of implantation of blastocysts in the female western spotted skunk. Autoradiography studies demonstrated that high affinity 2-[125I]iodomelatonin binding sites are present in the pars tuberalis but not in any other hypophyseal region or in the hypothalamus or thalamus of this pieces. This restricted localization of 2-[125I]iodemelatonin binding, which was characteristic of spotted skunks sacrificed at various times during their annual reproductive cycles, suggests that the pars tuberalis mediates photoperiodic responses in this species.
Original language | English |
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Pages (from-to) | 152-155 |
Number of pages | 4 |
Journal | Brain Research |
Volume | 569 |
Issue number | 1 |
DOIs | |
State | Published - Jan 8 1992 |
Bibliographical note
Funding Information:The authors appreciate the technical assistance of Joseph L. Johnson and Sandra Neirinckx. These studies were supported by USPHS Grants DK-42056 (to M.J.D.) and HD-06556 (to R.A.M.) and an award from the University of Missouri Medical School Research Council (to M.J.D.)
Keywords
- Adenohypophysis
- Autoradiography
- Implantation
- Melatonin
- Photoperiod
- Pineal
ASJC Scopus subject areas
- Neuroscience (all)
- Molecular Biology
- Clinical Neurology
- Developmental Biology